British Poetry Essay Example for Free

British Poetry EssayThe comparison and contrast of Wilfred Owens and Rupert Brookes approaches to the subject of contend The Soldier by Rupert Brooke and Dulce et decorum Est by Wilfred Owen were both written during world war wholeness. War and cobblers last are the themes of both verses but they are written from different perspectives. The two poets take different approaches in portraying the effect that war has on the people involved. The Soldier by Rupert Brooke idealises and glorifies war charm Dulce Et Decorum Est by Wilfred Owen highlights the horror and cruelty of war. Wilfred Owen gives the lector the impression that war is horrible and that dying for ones country is not all the glory and honour that it seems, and that in reality, dying in a war, no matter for what cause, can be both painful and full of suffering, while Rupert Brooke, on the other hand, gives the reader the impression that dying in war for ones country, is very honourable, and glorious. In Soldier, Brooke expresses his lovemaking for England and how he believes it is right to fight and die for his country.However, Brooke never knew what war was ilk, as he died in 1915. Therefore, his poem is very idealistic. This is expressed when he writes, there is a corner of a foreign field that is always England. Here, he sees the English soldiers bodies as parts of England. If they die on foreign soil, that land will be forever part of England because their soul remains there along with their values and love for England. Brooke does not notice the horrible nature of death in war and only tells how the soldier honors England by dying while defending the nation.He evokes positive feelings toward the war and describes optimistically the soldiers thoughts once the war has finished by using words like happy dreams and laughter By contrast, Wilfred Owen uses irony to portray war not as a glorious duty but as a barbaric massacre. Dulce et decorum est/ pro patri mori which recollect it is sweet and honorable to die for ones country. He considers this a lie for about soldiers after they see and live the reality of the war as soldiers. War can not be called sweet but horrible. Owen opposes to the idea of fighting in a war. Wilfred Owen focuses on the tragedy of war and the conditions of the soldiers.For example, he depicts the soldiers as Bent double, like old beggars under sacks. Generally, one thinks of a soldier as a man full of strength, who looks brave with his uniform and marches confidently to war. In contrast, Owen tries to make the soldiers look like penniless men and gives a sense of their non-glorified reality. Their uniforms, their psychological and physical health are destroyed. That shows how the battle has seriously damaged the spirits of the soldiers. As can be easily seen, Brookes poem supports fighting for ones country and patriotism, whereas Owens poem questions the reasons for fighting a war.

The field of nuclear physics

The field of nuclear natural philosophynuclear physics is the field of physics that studies the building blocks and fundamental interactions of segmentic nuclei. The most popularly known applications of nuclear physics be nuclear power and nuclear weapons, but the research has provided wider applications, including those in medicine (nuclear medicine, magnetic rapport imaging), materials engineering (ion implantation) and archaeology (radiocarbon dating).The field of particle physics evolved bulge out of nuclear physics and, for this reason, has been included under the same term in earlier times.The husking of the negatron by J. J. Thomson was the starting time indication that the atom had internal structure. At the turn of the 20th century the accepted model of the atom was J. J. Thomsons plum pudding model in which the atom was a large positively charged ball with small negatively charged electrons embedded inside of it. By the turn of the century physicists had as well as discovered three types of radiation coming from atoms, which they named alpha, important, and da Gamma radiation. Experiments in 1911 by Lise Meitner and Otto Hahn, and by James Chadwick in 1914 discovered that the beta declivity spectrum was continuous rather than discrete. That is, electrons were ejected from the atom with a range of energies, rather than the discrete amounts of energies that were observed in gamma and alpha declines. This was a problem for nuclear physics at the time, because it indicated that energy was non conserved in these decays.In 1905, Albert Einstein formulated the idea of loudness?energy equivalence. While the work on radiation by Becquerel, Pierre and Marie Curie predates this, an explanation of the get-go of the energy of radioactivity would take to wait for the disco genuinely that the lens nucleus itself was composed of smaller constituents, the nucleons.Rutherfords team discovers the nucleusIn 1907 Ernest Rutherford published Radiatio n of the a blood cell from Radium in passing through Matter1. Geiger expanded on this work in a converse to the Royal Society2 with experiments he and Rutherford had d ane passing a particles through air, aluminum foil and gold leaf. more work was published in 1909 by Geiger and Marsden3 and further greatly expanded work was published in 1910 by Geiger,4 In 1911-2 Rutherford went before the Royal Society to explain the experiments and propound the new theory of the nuclear nucleus as we now understand it.The key experiment behind this announcement happened in 1909 as Ernest Rutherfords team performed a remark fitted experiment in which Hans Geiger and Ernest Marsden under his supervision fired alpha particles (helium nuclei) at a thin film of gold foil. The plum pudding model predicted that the alpha particles should come out of the foil with their trajectories being at most slightly bent. Rutherford had the idea to instruct his team to look for whatsoeverthing that take aback him to actually observe a fewer particles were scattered through large angles, even completely backwards, in some cases. He likened it to firing a bullet at tissue paper and having it bounce off. The disco actually, first gear with Rutherfords analysis of the data in 1911, eventually led to the Rutherford model of the atom, in which the atom has a very small, very dense nucleus containing most of its chaw, and consisting of rotund positively charged particles with embedded electrons in ready to balance out the charge (since the neutron was unknown). As an example, in this model (which is non the modern one) nitrogen-14 consisted of a nucleus with 14 protons and 7 electrons (21 total particles), and the nucleus was surrounded by 7 more orbiting electrons.The Rutherford model worked quite an surface until studies of nuclear spin were carried out by Franco Rasetti at the California Institute of Technology in 1929. By 1925 it was known that protons and electrons had a spin of 1/ 2, and in the Rutherford model of nitrogen-14, 20 of the total 21 nuclear particles should take for paired up to apprisecel distributively others spin, and the final odd particle should study left the nucleus with a net spin of 1/2. Rasetti discovered, however, that nitrogen-14 has a spin of 1.James Chadwick discovers the neutronIn 1932 Chadwick realized that radiation that had been observed by Walther Bothe, Herbert L. Becker, Ir?ne and Fr?d?ric Joliot-Curie was actually collectible to a neutral particle of about the same mass as the proton, that he called the neutron (following a breath about the need for such a particle, by Rutherford). In the same year Dmitri Ivanenko suggested that neutrons were in circumstance spin 1/2 particles and that the nucleus contained neutrons to explain the mass non due to protons, and that there were no electrons in the nucleus only protons and neutrons. The neutron spin immediately solved the problem of the spin of nitrogen-14, as the one unp aired proton and one unpaired neutron in this model, each contribute a spin of 1/2 in the same direction, for a final total spin of 1.With the discovery of the neutron, scientists at last could cipher what fraction of salad dressing energy each nucleus had, from comparing the nuclear mass with that of the protons and neutrons which composed it. Differences amidst nuclear masses calculated in this way, and when nuclear replys were measured, were found to agree with Einsteins calculation of the equivalence of mass and energy to high accuracy (within 1% as of in 1934).Yukawas meson postulated to bind nucleiIn 1935 Hideki Yukawa proposed the first signifi deposet theory of the rugged force to explain how the nucleus holds together. In the Yukawa interaction a practical(prenominal) particle, later called a meson, mediated a force between all nucleons, including protons and neutrons. This force explained why nuclei did not disintegrate under the influence of proton repulsion, and i t also gave an explanation of why the attractive strong force had a more limited range than the electromagnetic repulsion between protons. Later, the discovery of the pi meson showed it to get down the properties of Yukawas particle.With Yukawas papers, the modern model of the atom was complete. The center of the atom contains a tight ball of neutrons and protons, which is held together by the strong nuclear force, unless it is too large. Unstable nuclei may undergo alpha decay, in which they emit an vigorous helium nucleus, or beta decay, in which they eject an electron (or positron). After one of these decays the resultant nucleus may be left in an evoke state, and in this case it decays to its ground state by emitting high energy photons (gamma decay).The study of the strong and weak nuclear forces (the latter explained by Enrico Fermi via Fermis interaction in 1934) led physicists to collide nuclei and electrons at ever high energies. This research became the science of par ticle physics, the lead jewel of which is the standard model of particle physics which unifies the strong, weak, and electromagnetic forces.Modern nuclear physics main(prenominal) articles Liquid-drop model and Shell modelA heavy nucleus can contain hundreds of nucleons which means that with some approximation it can be treated as a classical system, rather than a quantum-mechanical one. In the resulting liquid-drop model, the nucleus has an energy which arises partly from surface tension and partly from electrical repulsion of the protons. The liquid-drop model is able to reproduce many features of nuclei, including the general trend of binding energy with respect to mass number, as well as the phenomenon of nuclear fission.Superimposed on this classical picture, however, atomic number 18 quantum-mechanical effects, which can be described utilize the nuclear shell model, developed in large part by Maria Goeppert-Mayer. Nuclei with certain number of neutrons and protons (the ma gic numbers 2, 8, 20, 50, 82, 126, ) are particularly stable, because their shells are filled.Other more complicated models for the nucleus have also been proposed, such as the interacting boson model, in which pairs of neutrons and protons interact as bosons, analogously to Cooper pairs of electrons.Much of topical research in nuclear physics relates to the study of nuclei under extreme conditions such as high spin and excitation energy. Nuclei may also have extreme shapes (similar to that of Rugby balls) or extreme neutron-to-proton ratios. Experimenters can create such nuclei using artificially induced nuclear fusion reaction or nucleon transfer reactions, employing ion beams from an accelerator. Beams with even higher energies can be used to create nuclei at very high temperatures, and there are signs that these experiments have produced a phase transition from normal nuclear matter to a new state, the quark-gluon plasma, in which the quarks mix up with one another, rather th an being segregated in triplets as they are in neutrons and protons.Modern topics in nuclear physicsSpontaneous changes from one nuclide to another nuclear decayMain article radiation therapy in that location are 80 instalments which have at least one stable isotope (defined as isotopes neer observed to decay), and in total there are about 256 such stable isotopes. However, there are thousands more well-characterized isotopes which are unstable. These radioisotopes may be unstable and decay in all timescales ranging from fractions of a cooperate to weeks, years, or many billions of years.For example, if a nucleus has too few or too many neutrons it may be unstable, and will decay after some period of time. For example, in a process called beta decay a nitrogen-16 atom (7 protons, 9 neutrons) is converted to an oxygen-16 atom (8 protons, 8 neutrons) within a few seconds of being created. In this decay a neutron in the nitrogen nucleus is turned into a proton and an electron and a ntineutrino, by the weak nuclear force. The element is transmuted to another element in the process, because while it previously had seven-spot protons (which makes it nitrogen) it now has eight (which makes it oxygen).In alpha decay the radioactive element decays by emitting a helium nucleus (2 protons and 2 neutrons), giving another element, plus helium-4. In many cases this process continues through several(prenominal) steps of this kind, including other types of decays, until a stable element is formed.In gamma decay, a nucleus decays from an excited state into a lower state by emitting a gamma ray. It is then stable. The element is not changed in the process.Other more exotic decays are possible (see the main article). For example, in internal rebirth decay, the energy from an excited nucleus may be used to eject one of the inner orbital electrons from the atom, in a process which produces high speed electrons, but is not beta decay, and (unlike beta decay) does not transmute one element to another.Nuclear fusionMain article Nuclear fusionWhen 2 low mass nuclei come into very close contact with each other it is possible for the strong force to fuse the ii together. It takes a great deal of energy to push the nuclei close comely together for the strong or nuclear forces to have an effect, so the process of nuclear fusion can only take place at very high temperatures or high densities. Once the nuclei are close enough together the strong force overcomes their electromagnetic repulsion and squishes them into a new nucleus. A very large amount of energy is released when light nuclei fuse together because the binding energy per nucleon increases with mass number up until nickel-62. Stars like our sun are powered by the fusion of four protons into a helium nucleus, two positrons, and two neutrinos. The uncontrolled fusion of hydrogen into helium is known as nuclear runaway. Research to find an economically viable method of using energy from a controlled f usion reaction is currently being undertaken by various research establishments (see JET and ITER).For nuclei heavier than nickel-62 the binding energy per nucleon decreases with the mass number. It is and so possible for energy to be released if a heavy nucleus breaks apart into two lighter ones. This dissever of atoms is known as nuclear fission.The process of alpha decay may be thought of as a special type of spontaneous nuclear fission. This process produces a highly asymmetrical fission because the four particles which make up the alpha particle are especially tightly bound to each other, making production of this nucleus in fission particularly likely.For certain of the heaviest nuclei which produce neutrons on fission, and which also easily absorb neutrons to initiate fission, a self-igniting type of neutron-initiated fission can be obtained, in a so-called chain reaction. (Chain reactions were known in chemistry before physics, and in fact many acquainted(predicate) proce sses like fires and chemical explosions are chemical chain reactions.) The fission or nuclear chain-reaction, using fission-produced neutrons, is the source of energy for nuclear power plants and fission type nuclear bombs such as the two that the unite States used against Hiroshima and Nagasaki at the end of World War II. Heavy nuclei such as uranium and thorium may undergo spontaneous fission, but they are much more likely to undergo decay by alpha decay.For a neutron-initiated chain-reaction to occur, there must be a critical mass of the element present in a certain space under certain conditions (these conditions slow and conserve neutrons for the reactions). There is one known example of a natural nuclear fission reactor, which was active in two regions of Oklo, Gabon, Africa, over 1.5 billion years ago. Measurements of natural neutrino emission have demonstrated that around half of the wake emanating from the Earths core results from radioactive decay. However, it is not kno wn if any of this results from fission chain-reactions.Production of heavy elementsAccording to the theory, as the Universe cooled after the big bang it eventually became possible for particles as we know them to exist. The most common particles created in the big bang which are still easily observable to us today were protons (hydrogen) and electrons (in be numbers). Some heavier elements were created as the protons collided with each other, but most of the heavy elements we see today were created inside of stars during a series of fusion stages, such as the proton-proton chain, the CNO cycle and the triple-alpha process. Progressively heavier elements are created during the evolution of a star. Since the binding energy per nucleon peaks around iron, energy is only released in fusion processes occurring below this point. Since the creation of heavier nuclei by fusion costs energy, nature resorts to the process of neutron capture. Neutrons (due to their lack of charge) are readily absorbed by a nucleus. The heavy elements are created by either a slow neutron capture process (the so-called s process) or by the rapid, or r process. The s process occurs in thermally pulsing stars (called AGB, or asymptotic giant branch stars) and takes hundreds to thousands of years to reach the heaviest elements of lead and bismuth. The r process is thought to occur in supernova explosions because the conditions of high temperature, high neutron flux and ejected matter are present. These stellar conditions make the successive neutron captures very fast, involving very neutron-rich species which then beta-decay to heavier elements, especially at the so-called waiting points that correspond to more stable nuclides with closed neutron shells (magic numbers). The r process duration is typically in the range of a few seconds.

Compare And Contrast Ipv4 And Ipv6

Comp atomic number 18 And Contrast Ipv4 And Ipv6 ahead we discuss close to how the IP works at the intercommunicate grade to provide connectionless, best effort table service to the upper layers, we should transform what the role of IP is. To assistant us more transform roughly the question.Below be a few explanation of the cardinal role in the question.The profits communications protocol (IP) IP is a protocol used for communicating in initializeion across a big bucks-switched inter communicate utilise the Internet Protocol Suite, in addition referred to as TCP/IP, while the connectionless service is provided by IP meter reading 4.IP interlingual rendition 4 is just founding with limited note overhead to ensure it regress speed.The Network Layer -It is the 3rd layer of the seven-layer OSI model of computer networking. The network layer responds to service requests from the transport layer and issues service requests to the selective information nexus layer.U pper layer The stretch forth 3 layers of the OSI model, Session, Presentation and Application layer are referred to the Upper layers. These layers are trusty for applications communicating amidst hosts. None of the upper layers turn in allthing about networking or network credites.Connectionless/Best effort Service conversation between two network end-user in which a message apprize be sent from vector to receiver without lie withing of the receiver.The Internetwork Protocol (IP) provides a best effort network layer service for connecting computers to traffic pattern a computer network. to each(prenominal) one(prenominal) computer is identified by one or more globally unique IP appeal. The network layer PDUs are known as either mailboats or datagram. Each packet carries the IP yell of the sending computer and besides the address of the intended recipient or recipients of the packet. Other management information is also carried. The IP network service transmits da tagrams between intermediate nodes using IP routers. The routers themselves are simple since no information is stored concerning the datagrams which are forwarded on a link. The most complex part of an IP router is concerned with determining the optimum link to use to reach each culture in a network. This process is known as routing. Although this process is computationally intensive, it is only performed at daily intervals.An IP network normally uses a dynamic routing protocol to find alternate routes whenever a link becomes unavailable. This provides considerable robustness from the failure of either links or routers, but does not guarantee secure delivery. Some applications are happy with this basic service and use a simple transport protocol known as the User Datagram Protocol (UDP) to access this best effort service.Internet Protocol provides in discrepancy 4 (IPv4) is to ensure that the IP packet head is error-free through computation of a checksum at the routing nodes. This has the side-effect of discarding packets with bad headings on the spot, and cause the lost of data packet. The design of internet protocol is one of the crusade cause connectionless services. It assumes that the network infrastructure is inherently unreliable at any single network share or transmitting medium and that it is dynamic in terms of availability of links and nodes. Without any important monitoring or performance measurement facility exists that tracks or chief(prenominal)tains the state of the network. So in distinguish to easy the work, the intelligence in the network is purposely mostly located in the end nodes of each data transmission. Because of it, the network only can provide the best transmission and it was call the best-effort protocol.AdvantagesThey are homeless having no previously defined protocol.It is easily accessible.Fast deliver SpeedDisadvantagesThe lack of reliability allows any of the following fault events to occurdata corruptionlost da ta packetsduplicate arrivalout-of-order packet deliveryThe primary goal of IP is to provide the basic algorithm for transfer of data to and from a network. In order to achieve this, it implements two functions addressing and fragmentation. It provides a connectionless delivery service for the upper-layer protocols. This operator that IP does not class up a session (a virtual link) between the transmitting station and the receiving station former to submitting the data to the receiving station. It encapsulates the data handed to it and delivers it on a best-effort basis. IP does not inform the sender or receiver of the status of the packet it merely attempts to deliver the packet and go away not make up for the faults encountered in this attempt. This means that if the data link fails or incurs a recoverable error, the IP layer give not inform anyone. It tried to deliver (addressed) a message until failed.IP submits a properly formatted data packet to the close station and does not expect a status response. Because IP is a connectionless protocol, IP whitethorn receive and deliver the data (data sent to the transport layer in the receiving station) in the ruin order from which it was sent, or it may duplicate the data. Again, it is up to the higher-layer protocols (layer 4 and above) to provide error recovery procedures. IP is part of the network delivery system. It accepts data and formats it for transmission to the data link layer. (Remember, the data link layer provides the access methods to transmit and receive data from the attached cable plant.) IP also retrieves data from the data link and presents it to the requesting upper layer (Naugle, 1999).Compare and contrast IPv4 and IPv6. Justify your answer.There are two interpreting of the internet protocol are implemented in the network layer today, which is Internet Protocol version 4(IPv4) and Internet Protocol version 6(IPv6).Today, most the internet are still implement the IPv4 but nigh of the in ternet are already can to IPv6, which is the newest version of the internet protocol. He also said that the Internet Protocol version 5(IPv5) is for experimental purpose, not for deployment purpose (White, 2009, p.348).There are differences between the current of IPv4 and IPv6. The main difference between the IPv4 and IPv6 is the addressing of the IPv4 and IPv6 that provided. White (2009, p.348) elaborate that there have only 32-bit addresses that used by IPv4, which means only reserve until 32-bit of the IP address that provide by IPv4. Forouzan (2007, p.549) argues with White that the IPv4 is 32-bit address, which mean the IPv4 address are unique, means the address are only one and universally when the connection between the line and destination. Forouzan also stated that the two devices cannot have the analogous internet protocol (IP) addresses when the connections are established between the source and destination. For example, if the source or destination at the network lay er has m connections to the Internet, it will require having m address.In IPv6, there have 128-bits long address that provided by IPv6 compare to IPv4, which consist of 32-bits address, means that the IPv6 address consist 4 times to IPv4 addressAnother difference between the current of IPv4 and IPv6 is the notation of the address that battle arrayn by the IPv4 and IPv6. Currently, the IPv4 addresses are being establish as 32 bits in binary notation, which is support 1 and 0 only. 1 is behave hostid and 0 is represent netid, and also computer only can understand the language which the human cannot understand. Each 8 bits are representing 1 octet, mean the 1 octet are consist of 1 byte. That why IPv4 are only support to 32-bit of address or 4-byte address. The following to lay out the example of the IPv4 address in binary notations01110101 10010101 00011101 00000010In order to make the human can understand and read the binary notation, the internet are converted the binary-notati on into decimal and separating the byte by using dot. The following to charge the example of the IPv4 address in dotted-decimal notation117.149.29.2Refer to the figure 1.0, it represent that both the binary notation and dotted-decimal notation of the IPv4 address. Because each octet are represent 8-bits, the range of each octet are 0 until 255(Forouzan, 2007, p.550).Figure 1.0 Dotted-decimal notation and binary notation for an IPv4 address ( blood line http//www.comptechdoc.org/os/linux/manual4/ipdecimal.html).Similar to IPv6, the IP address in IPv6 also represent in binary notation. Only different is the IPv6 are using the hexadecimal colon notation to make the address understandable and readable. Refer to figure 1.1, 128-bit are being divided into 8 sections in the hexadecimal colon notation. Each section has 2 byte and each 2 byte is requiring 4 hexadecimal digits (Forouzan, 2007, p.567).Figure 1.1 IPv6 address in binary and hexadecimal colon notation (Source http//www.slideshar e.net/WayneJonesJnr/ch19-3361671)Another the different between the IPv4 and IPv6 is the IP datagram format that represent by the IPv4 and IPv6. In IPv4, there are 15 palm in the IPv4 packet header. Refer to the figure 1.3, it show that the number of the ambit, the format of the IPv4. The Version field contains the version of IP, which is version number of the IPv4 is number 4 and ensures the device send the packet through to the internet from source to destination implement the appropriate various field.The Intermediate Header Length (IHL) specifies the size of the packet header, which the multiples of 32-bit words. If the pickaxes require in the datagram, it will require filling the padding bytes with unusual multiple of 32 bit.The Type of Service (TOS) fields allow the process to determine the precedence, which is relative precedence of the application data and preferred attributes associated the following path.The thoroughgoing Length (TL) or Packet Length (PL) field will di s gaming the whole packet size, including byte of header and data (Halsall, 2005, p.322).The Flags field consist three laterality flags, which is reserved control flags, Dont Fragment control flags and more than Fragment control flags. Two control frags, which are Dont Fragment control flags and More Fragment control flags, use to control the fragmentation (The TCP/IP Guide, 2005).The Time-to-Live (TTL) field is to indicate the maximum the packet can be transmitted through the Internet. When the packet passes through the router, the TTL will decrement the number of transit of the packet remaining by one hop. When the TTL become 0, the packet will be fling by the router.The Protocol field is enables the Network layer to pass the data to the correct upper layer protocol.The Header Checksum field is to identify the error at packet header. It also applied to entertain from packet corruption during the transmission of the network.The Source predict and Destination Address field is c ontaining the address where the packets send or comes from (Halsall, 2005, p.324).There are 5 fields in the options fields, which is copied fields, option class fields, option number, option length and option data. An option field is make all fragments of fragmented packets will save into the option if the option is being set by 1. Option class is define as a common option category, which 0 is represent control option and 2 is represent debugging and measurement option. The 1 and 3 is for reservation(Wikipedia,2010).Figure 1.3 IPv4 datagram/packet format and header fields (TCP/IP Guide, 2005)In IPv6, there are only 9 fields in the IPv6 packet header, means that the IPv6 field has been simplified compare to the IPv4, contains 15 fields, as shown in figure 1.4.The Version field contains the version of IP, which is version number of the IPv6 is number 6 and ensures the device send the packet through to the internet from source to destination implement the appropriate various field (TCP /IP Guide, 2005).The Traffic single out field is exchangeable function as TOS in IPv4, which is allow the process to determine the different priority of the application data and preferred attributes associated the following path (Akashah, 2006).The Flow Label field is provided the additional support datagram delivery and quality of service (QOS) features with creating a large field.The Payload Length field is does not uniform the TL field from the IPv4, which is dis take to the woods whole size of packet but only display the load byte number. The length of the generation header would be counted if the extension header will be included, means including the Hop-by-Hop Option, Routing, Fragment, Encapsulating security department Payload (ESP), Au thereforetication Header (AH) and Destination Option.The Next Header field is to determine the first extension header of the next header in the datagram if the datagram contain the extension header. If the datagram contain only the main header and does not contain the extension headers, it will function as the IPv4 Protocol field. It also contain the same value, which the IPv6 version of the common protocol use though the new number.The Hop Limit (HL) field is similar function as TTL from the IPv4 field, which is remaining life of packet travel through the internet before discarded by the router while become 0. The purpose of the HL is preventing the packet infinite loop at internetwork. Before the packet send to the destination, the sending host will set the HL value. When the packets pass through the router, the router will decrease the HL value by 1 and until become 0, the packet will be discarded.The Source Address and Destination Address is similar function as the Source Address and Destination Address from the IPv4 field, which Source Address is contain the address where the packet are comes from. The Destination Address is contain the address that where the packet send to.Figure 1.4 IPv6 datagram/packet form at and header fields (TCP/IP Guide, 2005)Section 2Introduction of the chosen game.The three games that we choose is beam of light Packet. Peter Packet is the education game represents the how the packets deliver through the internet. These games also represent how the packet can avoid from attacking virus and hackers. This game also can learn the lesson while the players play this game.How to play the chosen game? You may print test the layout to support your reports.Here we have the instruction how to play the Peter Packet this game.This is Peter Packet. He is responsible to deliver the life packet through the internet.Figure 2.0 The screenshot is represent which difficulties you hope to choose.Before you fate to play this game, first you regard to choose the difficulties of the game as show in figure 2.0.Figure 2.1 The screenshot is show which destination you want to chooseAfter we choose the difficulties, then we choose which destination we want to survive as shown in figur e 2.1.This bar is show that the health status of the fount.After we choose our destination we want, then we will show you the instruction how to play this game.Click the skip button to skip this section.The bar is show you that how many mission remaining you want to complete.Click the character if you want learn more about it.Press the back button if you want proceed to next section.Press the back button if you want back to previous section.Press the help button if you want to learn the tutorial again.Press the still button if you want to silent or you want the sound.Figure 2.2 Speed up the character by using common mackerel right or press the right arrowFigure 2.2 is show that if you want speed up the character you must press the right arrow or prompt the mouse to your right.Figure 2.3 Slow down the character by pressing odd arrow or move the mouse leftThe figure 2.3 is show that if you want to slow down the character, you must press the left arrow or moves the mouse to left.G et the encryption shields to protect from being caughtFigure 2.4 Get the encryption shields that protect from caught by Hackers.Figure 2.4 shows that if you want birth rid from the Hackers you must to get the encryption shields to protect the character. Otherwise you will jump up by using up arrow or move up mouse to avoid being caught. Same as the virus, if you want to kill the virus, you must get the antivirus sprayFigure 2.5 double click or pressing the up arrow twice if you want the character adds a flip.Figure 2.5 shows that if you jump not enough high, you can apply the flip for the character by pressing the arrow twice or double click.What are the benefits of playing this game to each of your groups member? Share your experiences and justifications.Leong Yun SiongThe Benefit that I gain from playing this game is know how the internet play role important are, how the packet pass through the internet and the world started to emphasis the education, especially the women and the children from loyal poor family and the personal hygiene. I also know how the router chooses the faster path of the network and also know how the electromagnet interference will interrupt the packet will cause the network congestion. I also know how the packet segmenting and reassembling.Phang Won MengThe Peter Packet is a funny game which contains a lot of utilitarian information. By playing this game, we can understand there are many obstructers equivalent hacker, Viruses and Route disruptions may occur when the packet are under the deliver. The game also provides and friendly user interface design with meaningful explanations and introduction to let player can learn more efficiency when playing the game. inner(a) the story of Peter Packet, Users can also find a lot of bare information like can learn information about social and environmental challenges in 3 countries that are Zimbabwe, Haiti and India in the developing world. Inside the story of Peter Packet, Users can also find a lot of extra information like that many people have died of AIDS and been exposed to HIV in Zimbabwe. Peter has the mission of helping to spread the word about this disease and get international aid. Players learn about the problems of lack access to clean drinking water in Haiti caused by years of environmental degradation from the harmful practice of intensive clear-cutting of trees, resulting in pollution and saltwater contamination. This useful information will help increase users knowledge and improve his moral.

The Price Of Elasticity Of Supply Economics Essay

The Price Of Elasticity Of Supply Economics EssayThe legal injury of shot of fork out assesses the sensitiveness of the step supplied to a channelize in the charge of a heavy when all other specifys on exchange plans appease constant. It notify be calculated by utilize the conventionPES = share change in sum of m maveny suppliedPercentage change in monetary valueThe two determinants of wrong tensileity of supply ar resource substitution possibilities and snip frame for the supply decision (Parkin 9th discrepancy pg97)For resource substitution possibilities, it intend that totally some goods and services lot be produced only by using special or noble-minded productive resources. Such items have low and sometimes even nought ginger snap of supply be realize items like that are hard to be substituted. For moral, cars and tyres. As the scathe of rubber hoists, the bar supplied exit reduce by only a little because people still need tyres for their cars. I t is difficult to uprise other raw material for tyre because the input factor of exertion is rare and at that placefore, the outlay elasticity of supply go forth be dead.The chip determinant is time respond for the supply decision. For instance planting maize. It takes a few months to produce maize that even if the desex changes, the farmer pull up stakes not be able to do anything. Reason being so is that when the terms of maize fluctuates, the time taken for maize proceeds lead re primary(prenominal) constant. Thus, the outlay elasticity of supply will be inelastic if the production is long.PriceQS40%20%SBased on the diagram, it shows that monetary value make up is greater than the measuring stick supplied. The two determinants of charge elasticity of supply are resource substitution and time frame for supply decision. smash BPrice elasticity of invite (PED) is a unit of measurement free measure of the reactivity of the criterion demanded of a good to a chan ge in price, when all other determinants on demoraliseing plans remain the same. The formula used to calculate PED is(Parkin, 9th var. pg 86)PED = Percentage change in bar demandedPercentage change in priceBusinesses use the price elasticity concept to decide on their pricing strategy ground on three ranges of elasticity namely inelastic, elastic and unit elastic demand.When the percentage drop-off in quantity demanded is less than percentage sum up in price, it is said to be an elastic demand. Goods that are reason downstairs inelastic are considered necessities and thitherfore when business make up the price to chance more revenue, the demand will still be in that respect. An shell would be smokers and cigarettes. If the price of cigarettes is now rm10 a pack, quantity demanded is 50 save when price increase to rm15 a pack, quantity demanded becomes 45.The to a higher place diagram is an example of the birth amidst the change in quantity demanded and change in pric e. The elasticity is more than zero but less than one, which means it is inelastic and smokers will still continue buying cigarettes despite the price increase.When the percentage strike in quantity demanded but greater than one exceeds the percentage increase in price, then it is an elastic demand. Goods that have an elastic demand are luxury goods because the goods have many substitutes, for example Nike shoes. If the price is rm200, then quantity demanded is 100 but once the price increases to rm220, the quantity demanded will spillage to 70. This is because the customers can resort to other brands. The elasticity is more than one which means customers are sensitive to the change in price.The diagram shows that even though the price increases only by a little bit, but the quantity demanded lightd by a lot because goods like that can be substituted easily.When the percentage decrease in quantity demanded equals to the percentage increase in price, then it is a unit elastic dema nd. In cases like that, businesses should incomplete increase nor decrease the price of goods because a change in price will change the quantity demanded. An example would be chewing gum. The sign price is rm1, and quantity demanded is 200 but once the price increases to rm2, the quantity demanded will decrease to 100.By using the concept of price elasticity, businesses can decide whether to increase price (inelastic demand), reduce price (elastic demand) or not to change the price (unit elastic demand) in separate to maximize revenue. query 3One of the factors of supply is the prices of factors of production. A decrease in price of production will directly correlate to an increase in supply. This is because if the price of a factor of production used to produce a good decreases the minimum price that a supplier is willing to accept for producing each(prenominal) quantity of those good decreases. So a decrease in the price of a factor of production decreases supply and shifts th e supply carousal rightward. another(prenominal) factor is the price of related goods produced. A substitute in production of a good is another good that can be produced using the same resources. The supply of a good increase if the price of a substitute in production falls. Goods are complements in production if they must(prenominal) be produced together. The supply of a good increase if the price of a complement in production rises. Expected future prices are another determinant of an increase in supply. If the price of a good is judge to decrease in the future, the supply of the good today increases and the supply curve shifts leftward.b) A price ceiling or price cap is a regulation that makes it illegal to charge a price higher(prenominal) than a specific level. If the price ceiling is set above the residual price, it has no effect. The market works as if there were no ceiling in the first place. Inversely, if the ceiling were to be set below the equilibrium, its effects ar e far greater. If the level of price equilibrium is above the price ceiling, in severalize to achieve price equilibrium one would have to disgrace to illegal region. Other mechanisms thus come into place in order to eliminate the shortage created by the price cap. Search activity and scandalous markets are some of those mechanisms and consumers are willing to pay a higher price in order to obtain the goods collectible to the shortage. A price ceiling decreases the quantity supplied to a less efficient quantity resulting in a deadweight loss. A further shrink in consumer and producer pleonastic further enhances the potential loss from search activity. A price tarradiddle is a regulation that makes it illegal to trade at a price lower than a specific level. If it is set below the equilibrium price, there is no effect. Effect only takes place if set above the equilibrium price. Price floor leads to an inefficient outcome. A minimum price is set above the equilibrium and decreases the quantity demanded. A deadweight loss thus arises due to a decrease in consumer and producer surplus.Question 5Part ADemand refers to the quantity of a good that potential buyers would be willing and able to buy or attempt to buy at a different price level. The law of demand states that there is an reverse relationship between the price of a good and the quantity demanded in a defined time period. Quantity demanded of a good or service is the amount that consumers plan to buy during a given time period at a particular price.(McConnell,Brue Flynn Economics 18th edition)A decrease in demand will result in a leftward shift in the graphical record and there are six main factors influencing it. The first factor is the prices of related goods. Assume if a comparison is make between beefburger and hot dog. If the price of a substitute for ground beef rises, people buy less of the substitute and more hamburgers. The demand for hamburger will rise and demand for hot dogs will fall. Th en there is also complement which is a good that is used in connector with another. For example, fries and hamburgers. If the price for hamburger increases, people will not buy so much fries and hamburgers. There will be a decrease in demand. The next factor is expected future prices. If a good, for now will decrease because people would want to buy it at a cheaper price. The third factor is income. When income rises, consumer will buy more goods but when it decreases, they will buy less of those goods. A normal good is one for which demand increases as income increases. Inferior good is one when demand will decrease as income increases. Next factor that will decrease a demand is when expected future income and credit falls. For example, when a sales person knows her income will fall in the future, she will have to spend wisely and not splurge on goods. Another factor is when the state decreases. For example in the 1990s in America, a decrease in the college-age population decrea se the demand for college places. Lastly would be preference. If there is poor or no environmental awareness, it will shift the demand curve for recycled items or even eco-friendly bags to the left. The diagram shows a leftward shift on the demand curve. hostile the demand curve, the quantity demanded curve will bring an upward accomplishment on the diagram, instead of a shift and the only factor that influences it is price with all other determinants on buying plans remain constant. According to the newly law of demand, higher price will cause a decrease in demand.From the diagram, a decrease in quantity demanded will cause an upward movement when price rise from P0 to P1, quantity demanded falls from QD2 to QD1. An example would be the rise of price of apple from P0 to P1. It will decrease the quantity demanded to QD1. There are a few differences between a decrease in demand and decrease in quantity demanded. First, decrease in demand will show a leftward shift in the graph but decrease in quantity demanded shows an upward movement. There are six factors influencing the demand to decrease but only one that influence the quantity demand price.Part BIncome elasticity of demand (YED) is the dimension of percentage change in the quantity demanded of a good or service to a given percentage change in income. YED indicates the responsiveness of demand to change of family income. To calculate YED.(McConnell,Brue Flynn Economics 18th edition)YED = Percentage change in quantity demandedPercentage change in households incomeThe three degrees of YED are positive, negative and zero. For positive YED, it is further categorized into two types which are income inelastic (01). For income inelastic, the percentage increase in quantity demanded is positive but less than the percentage increase in income. When the demand for a good is income inelastic, the percentage of income spent on that good decreases as income increases. Those will be considered normal goods such as c lothes, food and travel. notwithstanding for income elastic demand, the percentage increase in quantity demanded exceeds the percentage increase in income. When the demand for a good is income elastic, the percentage of income spent on that good increases as income increases. For example, if the price of a glory is constant and 9 doughnuts an hour are bought. So when income rises from rm975 to tm1025 a week, the quantity of doughnuts sold rise to 11 an hour, ceteris paribus. The change in quantity demanded is 2 and the average quantity is 10 doughnuts, so the quantity demanded increases by 20% and the change in income is tm50 and the average is rm1000 so income increases by 5%. The income elasticity of demand for doughnut is20% = 4%5%Therefore, it is said that the income elasticity demand for pizza is elastic. Next is negative YED (YEDQuestion 6Equilibrium is a space in which opposing forces balance each other out. Equilibrium in a market occurs when the price balances the plans of buyers and sellers. The equilibrium price is the price at which the quantity demanded equals the quantity supplied.Consumer surplus is defined as the value of a good minus the price paid for it, summed over the quantity bought. It is metrical by the area under the demand curve and above the price paid, up to the quantity bought.Producer surplus is determined by subtracting the fringy cost from the price received for a good and summed over the quantity sold. It is measured by the area below the market price and above the supple curve.b.) The production possibility frontier (PPF) marks the boundary between the combination of goods and services that can be produced. There are tetrad assumptions that are made which are the economy is efficient, there are a fixed amount of resources, a fixed level of technology and there are only two goods. In order to achieve efficiency there must be full employment and full production. The probability cost of an activity is the value of the nex t best alternative that must be forgone to undertake the activity. Scarcity is a situation where there is not enough resources to produce enough a good to satisfy the postulate of the consumers. Choice occurs when scarcity forces consumers to make a choice in order to maximise satisfaction. PPF illustrates these three principles of economics choice, scarcity and probability cost. Because of scarcity, a smart set has to make choices between the productions of two goods with scarce resources available. Most choice involves opportunity costs.ReferencingParkin.M, Economics 9th edition ,Pearson International EditionMcConnell,Brue Flynn Economics 18th edition

Identification of Finger Prints, Blood and DNA

denomination of riffle Prints, Blood and DNAINTRODUCTIONforensic science is astray utilize in the service of the justice system (Jackson). It has helped in work studys by providing important clues and evidences. The usage of forensics in solving crime cases is inevitable. Forensic sciences is utilise in various beas bid reproduceing, DNA profiling, blood malignment get holdion and many practic wholey(prenominal).From the early days of complicated body mea undisputablements to todays advanced(a) biometric devices, the acknowledgement of individuals by their bodies has been a mainstay of government and law enforcement. estimatorized databases wish well AFIS now make it possible to comp ar thousands, or in the case of the FBI, millions of finger publishs in minutes.With the advancements in DNA detecting mechanisms, blood stains in the scenes of crimes beat also pay off one of the most important evidences. After a homicide or an assault has been committed, police inv estigators usually find blood at the scene of the crime. This gives them clues as to what happened du make noise that incident. The bloods texture and shape and how it is distri yeted around the victim practically help investigators determine when and how the crime was committed. A number of techniques ease up been substantial for the identification of finger affects and blood stains in the crime scene.EVOLUTION IN reproduce TECHNIQUESIn the mid-1950s finger belief was through using the dangerous mercury-based white mill, a coarse graphite-based black pulverise and squirrel-hair brushes.With a burst of innovation concerning reproduce evidence as part of the crime investigation, ninhydrin trying was developed. This system is highly efficient on composing items, especially if the stock effect is added to fluorisol, which prevents authorship on the paper from smudging. Ninhydrin reacts with the amino acids in perspiration, producing red, brown, or purple imprints this is a most successful method of investigating check fraud.During the last decade, new(prenominal) techniques for discovering latent imprints concord been developed. These include Super Glue, physical developer, small-scale atom reagent, lasers, metal deposition, Sudan black, amido black, thermoplastic fingerprint powders and radioactive sulfur dioxide. Exceptional powders are available with greatly improved fingerprint brushes to help cans in fingerprinting. DFO is a recent improvement on ninhydrin, providing up to 300% more finger and palm imprints.One some other advancement in this domain is the use of photoluminescence. Fingerprint luminescence excitation initially used lasers, but filtered lamps are employed as well. This technology helps the forensic scientist to take a get a line of the fingerprints outright at the crime scene.Computers are now used throughout the world for maintaining and searching files of imprints and fingerprints of offenders found at crime scenes. C omputer searches of crime scene imprints provide excellent results. The computer blasts through murder collections at fantastic speed, possibly scanning millions of digits, but in that location is no promise that the offender who make the imprints is not in the collection if identification is not made. Bio-metrics especially fingerprints has become one of the main areas of research.EVOLUTION IN BLOOD STAIN DETECTION TECHNIQUESBlood is one of the most greens physical evidences which is present in murder cases, accidents and violent crime investigations. A determination must be made if it really is blood. Eventhough there have been various sieves to detect the front line of blood, the widely used scrutinys are Kastle-Meyer test and the Luminol testify.Luminol is first activated with an oxidant, usually a solution of hydrogen hydrogen peroxide and a hydroxide salt in water. Then, in the presence of a protein present in blood called hemoglobin, the hydrogen peroxide decomposes to form group O and water. Luminol reacts with the hydroxide salt, leading to the formation of a dianion. The oxygen produced from the hydrogen peroxide then reacts with the luminol dianion. This chemical reaction produces an organic peroxide, which is precise unstable and hence it immediately decomposes with loss of nitrogen to produce 3-aminophthalic acid (3- APA) in an excited state. As 3-APA relaxes, it releases a visible blue light. Luminol is sensitive to the presence of extremely small tot ups of blood. It can detect bloodstains that have been diluted up to 300,000 times.The KM Test is a presumptive test which is used to check the presence of hemoglobin using phenolphthaleins color reposition in the presence of oxygen. abridgment AND interpretation OF DATAFINGER bell ringerING surmiseFingerprints often leave residues of oils in the shape of the friction ridges. However, the friction ridge skin does not discharge oils. Some fingerprints will leave a residue of amino aci ds and other compounds. These principles make dusting techniques to develop fingerprints. (Finger print Powder- Wikipedia the free encyclopedia)CLASSIFICATION OF FINGER sign PATTERNSThe following table contains the finger print patterns for the fingers and toesRight Hand feelWhorlIndex FingerWhorl middle Finger draw inRing FingerWhorlSmall FingerWhorlleft field HandThumb ArchIndex Finger WhorlMiddle Finger LoopRing Finger LoopSmall Finger LoopThe toe prints are all arch expect for the ring toe in the right leg which is whorl.The fingerprints using sign keep ones shoulder to the wheel for the fingers and toes can be found in Annex C.DIFFERENCE IN PATTERNS BETWEEN FINGERSThe pattern in all the fingers except the left flip out is whorl. This might be the case because the environmental factors within the fetus would have been kindred for the fingers and hence there is not much change in the pattern between the fingers.DIFFERENCE BETWEEN HANDS AND TOESThe finger prints in the hands are very lax to identify when compared to the toes. This is because the fingers are whacking enough for us to deposit the prints properly. However, the legs are small and since we dont use them like fingers it is very difficult to deposit it even while using the ink pad. Since the whole bodys pressure is on the toe, too much of pressure was utilize on the paper by it. and so the prints werent stimulate.DIFFERENCE BETWEEN ageing AND NEW PRINTSThe hoary prints are not as bright as the new prints. The old print gets exposed to the atmosphere and hence they react with the air. Hence split of the print vanish. Hence it is not as homely as the new print. However, the old prints is good enough for matching 16 positions on the finger print and thus easy to the catch the criminal.The old big toe prints deposited wasnt seen when developed by both the magnetic powder as well as the black powder. This is because the print wasnt deposited properly. Too much of sweat on the print made t he prints to be smudged when the powders where used to detect their presence. Hence the prints were seen very faintly.DIFFERENCE BETWEEN METHODOLOGIESThe black powder had to be done very carefully since two much of powder made the finger prints to smudge. The magnetic powder was easy in a modality because excess magnetic powder could be removed easily. However, the dusting had to be done slowly and such that that the brush wasnt too close to the finger print in order to get the print properly. The ninhydrin test was very easy because we didnt have much to do for it. However, many of my friends prints were pale. This might have been because they didnt pay enough pressure on their papers when they deposited the prints.Since I had applied so much moisture, the finger prints smudged badly and the prints werent clean-living. Hence I had to repeat the butt against again. However, the next I exerted too much pressure on the paper which made the fingers to sweat too much leading to smud ging. Also the amount of time given to register the finger prints was too less.Out of the three methodologies used in this lab I find the ninhydrin solution test to be the most efficient one. This is because for because the human influence in this method was very less. Since we were beginners in this lab, we didnt have a proper idea of how much powder had to be used for these methods. thereof I prefer the ninhydrin solution method for fingerprinting especially for beginners.FINGER PRINT LIFTINGThe dusting for finger printing lifting was done using the magnetic powder since excess powder could be easily taken away. However, when I lifted it the first time, a lot of air bubbles where formed which made half of the finger prints to vanish. Also since I had not given enough time for my finger prints to settle the prints werent clear when dusting.Hence I tried to avoid these when I lifted the indorse time. I pressed gently and allowed the prints and gave some time so that the prints to settle. piece of music using the tape I made sure there were no bubbles. Hence I was able to lift a proper print of my right thumb finger using the lifter.IDENTIFICATION OF BLOOD STAINSTHEORYThe Kastle-Meyer test is a forensic presumptive test which is used to examine if the dried stains in a violent crime scene is peaceful of blood. The test is based on the peroxide-mediated oxidation of reduced phenolphthalein. In this reaction the heme molecule acts as a catalyst.The chemical indicator used in this test is phenolphthalein C20H14O4, a common acid-base indicator which turns pink, in raw material solutions with a pH of approximately 8 or higher.. Phenolphthalein, a clear dye, immediately turns pink if oxidized by hemoglobin and hydrogen peroxide. on that point are three reagents involved in this test. To increase the sensitivity of the test the reagent, Methyl or Ethyl alcohol is used. It does this by cleaning up the area in and around the bloodstain to better expose the hemoglob in. Phenolphthalein, the second reagent acts as a color indicator. This solution when oxidized (exposed to oxygen), turns pink. Hydrogen Peroxide is the 3% form typically found in drugstores. Hydrogen peroxide is basically water with an extra oxygen atom attached to it. These chemical reactions are set ahead stated using the following equationsThis test is nondestructive to the taste. Hence the exemplar can be kept and used in further tests at the lab. This test has the uniform reaction with human blood and living creature blood. So, further investigation is required to determine whether it is human or animal blood.ANALYSISThe blood stain dark pink instantly afterwards adding all the three reagents stating the presence of blood.When the reagents where added to copper powder, it turned pink even forwards the addition of the hydrogen peroxide showing giving a ill-judged result . Thus it is vitally important to add the reagent first, then anticipate a few seconds, then add t he hydrogen peroxide.K and so onup didnt change at all showing the absence of hemoglobin. Whereas, cabbage solution turned yellow.Beetroot and ribena solutions turned colourless due to their neutral nature with very very slight pink tinge occurring due to their natural colour.Hence except for copper there werent any false substantiating tests in the samples which were recognized.LIMITATIONSEventough Kastle-Meyer test can detect blood upto dilutions of 1107, there are many limitations for this test. In the presence of vegetable peroxidases, like in horseradish, broccoli, cauliflower, etc. the test gives a false peremptory result. Oxidizing species present in the sample also causes this test to fail. (Kastle-Meyer testLimitations)For example when this test was performed for copper powder the Kastle-Meyer reagent turned pink even before hydrogen peroxide was added to it. Thus it is very much important that we wait for a few seconds after the reagent is added and then only we need to add hydrogen peroxide.The Kastle-Meyer test gives overbearing results to both human blood as well as animal blood. In general, it gives a positive result to all hemoglobin containing blood.. In order to ensure that the blood is really from a human species, a confirmatory test such as the Ouchterlony Test is performed. (Kastle-Meyer testLimitations)In short, color catalytic tests are very sensitive in nature. The prejudicious results from these tests show that these samples do not hemoglobin and so it is not blood. However, the positive results need not be correct in all cases. It is remarkable to mention here that false positive tests occur due to the presence of a reducing agents, animal blood, peroxidases and many more. (Kastle-Meyer testLimitations)FINGER PRINT PATTERNS IN IDENTICAL TWINSWhen a fertilized egg splits into two, it leads to a breeding of two embryos. This leads to the development of Identical twin. Since the twins are formed from the same egg, their DNA is iden tical.The interactions between the environment in the fetus and the genes, plays an important manipulation in the fingerprints and the appearance of a person. The environmental factors include blood pressure, nutrition, etc. ( match Fingerprints Identical Twins and fingerprints) The genes thus play an important role in depicting the fingerprint patterns in humans. The skin of the finger is in fall into place with various parts of the fetus and anionic fluids in the uterus. The interactions between the fingers and these parts changes due to the movement of the fetus and the mother. Thus this microenvironment plays an important role in the details of the fingerprint patterns. (Why Identical Twins have Di)Though there are only minimal changes in the environment, the differentiating cells make the differences in the fingerprint pattern to be seen evidently. All these reasons make fingerprint patterns in the twins to be different. This also makes fingerprints between the finger and the toes from being the same. (Why Identical Twins have Di)Eventhough after birth, identical twins just look the same they also have a few physical differences for e.g. moles which help in distinguishing one from the other. These physical differences amplify day by day and become greatly evident.CONCLUSIONFingerprinting by dusting and ninhydrin solutions help in lifting them properly. It makes sure that none of the fingerprints in the crime scene is unnoticed. However, it is important to note that these techniques should be done only by people who are very experienced.Kastle-Meyer test helps in identification of blood stains but it also gives false positive tests. Hence the samples should be analyzed once again to check the presence of blood in it.The lab was very enriching and gave a true picture of what is done by forensic scientists at the crime scene.

Spanish Cinema During Dictatorship Film Studies Essay

Spanish Cinema During Dictatorship charge Studies EssayFilmmakers liveness under whatever host dictatorship argon basically divest of any open criticism of the regime as all heathen activities, including cinema, atomic number 18 rigorously controlled by censors. In order to sh are their ideas and earn acquires they want, they have to resort to the indirect methods of expression such(preno bital) as parables, fictions, allegories, symbols and allusions and fool them in cinema language. The elements metaphorised during Francos years in Spain formed the basic criteria of the censoring Faith, Fatherland and Family. Hence, family as a microcosm became a condensed and concealed reference to the carry for such directors as Carlos Saura Fernando Palacios, Luis Garca Berlanga to cite only a few. The questions that this turn up raises concern the family category and family dealingship in Cra Cuervos/ demonstrate Ravens Carlos Saura, 1975 code of the figurative language in Spanish national cinema of the Francos years, along with the script, fil secondg and editing styles that convey internal impulses and foreign influences of that succession in terms of single family.RR was shot and move aroundd during the period marked by the collapsing of Francisco Francos dictatorship that closing curtained for thirty-five years. It is necessary to bear in seconduteuted that the last decade of his governing was caseised by economic growth, social modernisation, population mobility, phaeton development caused by domestic and external conditions. But the legacy of his flush regime that is special(a)ly identified with hispanidad and National Catholicism, g give uper, political and trade oppression, army regime, strict censorship and do hourance of patriarchal family values was still in the air (Ibid., 173-183). In order to raise an issue of the burden of such politics Carlos Saura exploits the tragic story of the family where three sisters have lost some(preno ar cmouteal) parents and become in charge of a strict aunt.The plot of youngster-centred RR cleverness be considered as a long flashback of adult Ana recalling her infancy cardinal years later in 1995 (DLugo 1991, 132). Thereby, reading this film as ex post facto suggests mediation on genus genus genus Anas morbid childhood, on complex issues of family relations and grieves, their interplay and impact on her personality. But on the metaphorical level, audience is invited to ru hourate on the state of affairs of actual Spain caused by the loss of pudding st ace (1898), unfruitful Second Spanish Republic (1931-39) resulted with the Spanish Civil struggle (1936-39) that paved the way for the military regime of Franco (1939-75).The opening credits grade of RR proves Sauras ingenious realistic editing style that results in a non-linear twist and peculiar editing. Indeed it starts with the camera s patheticly moving across the photographs of child Ana Ana Torrent in order to compres s the memorial sentence illustrating moments of her childhood and identifying her as the potential first-person narrative of the film. Further the viewer discovers that the visible limit amongst fantasy and reality is absent and transition takes place only through with(predicate) camera movement while compositors cases enter the shot directly (07 hour 02). From the technical point of view, the flying sequence of child Ana (15 hour 35) is rum because the transition is realised by means of zooming, changing angle from low to high and subjective camera in this sequence Ana escapes from her prison-house and it can be interpreted as the rejection of the authority. The passage from present to future is ensured in particular through the dolly shot and the off-screen voice of adult Ana Geraldine Chaplin (17 min 55) or solely by means of her voice-over (66 min 35). However the memories from the past are reconstructed from the photographs that are frequently fixed in tight shots (19 m in 55, 35 min 06). As a result, the panoply of techniques contributes to the alternative editing and narrative in RR.The use of natural lightning and contemporary realistic settings enhance the authenticity, though complex, of the Spanish bon ton. The establishing shot introduces the location of the gloomy family house and the tho mise-en-scne articulates the films lay concentrated in this roomy isolated house situate in the centre of Madrid that symbolises the impoverished bourgeoisie by the end of the Spanish Civil War. The mansion is surrounded by overgrown tend and boasts an empty and ruined swimming pool connoting the decay, emptiness and death with an allusion to the cul de sac political situation of the regime. The entering of the outside world into the closed space via consumerism is expressed by comics (09 min 36), glossy magazines (29 min 23) and billboards. Even the international influence on economic and cultural transformation of Spanish society is visualised in t he national flags of the USA (14 min 46, 28 min 20). The only sequence set outside the city takes place in the house of servicemen Nicols Garate Germn Cobos where children play outdoors and the diegetic birds singing (72 min 27) contrasts to the diegetic sound of heavy traffic heard in their garden (14 min 48, 16 min 28, 101 min 58).The ambiguity of adult Ana and Anas mother Maria both by Geraldine Chaplin contributes to the time, space and identities shift in the film. mend mixing up memories and fantasies of child Ana with the reality of adult Ana and joining time layers of past, present, future and unreal together, Saura creates a concentrated reality where all characters and epochs move and enter the field. Child Ana, the ambiguous protagonist, becomes a main link surrounded by Maria and adult Ana. As means to emphasise the importance of Anas viewpoint in the film, Saura applies the close-up on her face (03 min 35, 25 min 21, 46 min 37, 62 min 47, 67 min 17 etc.), and camera is also often placed at the level of her look despite the sequences with adults participation (07 min 11, 21 min 43, 30 min 35, 57 min 26, 58 min 22 etc.). This can be interpreted as the innocence of childs viewpoint and an appeal to viewers to accept it.The films title RR as a part of popular Spanish aspect states for Raise ravens and they will peck out your eyes could become a allegorical moral that not only the children could return annoyance for evil to their parents, but the unsatisfied country is able to take revenge on its former ideological leaders. Child Ana remains a conditionful metaphor for Spains future that is still indefinite and unsure to defeat the regime, but potentially strong as her viewpoint is distinctly lucid, penetrating and analysing (DLugo 1991, 134-135). Thus, through the noneffervescent shots, she unveils what adults as censors try to conceal adulteries of her father Hctor Alterio as an antithesis of canonised spousal (05 min 28, 74 min 20) griev es and pains of her mother standing for distortion and frustration with the Francos regime (46 min 10, 55 min 22) quarrel of her parents proving the predominate role of husband in the family (58 min 02) affair of her aunt Mnica Randall (88 min 19) contrasting with her authoritarian manner (21 min 17). Ana faces to understand that spontaneous stories of amah Rosa Florinda Chico with her genuine speech (24 min 37, 74 min 33) are more sincere than the orders of her aunt. The kitchen, which is Rosas realm, is also accentuated by means of bright lightning and grows into Anas safest place in the whole house. All in all, Anas character invites the audience to participate in estimation of cause-and-effect relations of the precedent and watercourse epochs, depicted in her parents, as well as their impact on her future.As for the Anas surroundings, her household is characterised by double absence of parents and powder-puff composition. Since in Francos time the patriarchal family struct ure prevailed and the man was supposed to be the head of such mnage (Helen Graham 1995, 184), this role is successfully play by Aunt Paulina whose iron discipline substitutes maternal affection. As Ana has already disclosed the illusion of the paternal system when she found her father deceased in the arms of his mistress Mirta Miller at the beginning of the film (05 min 28), she does not obey her aunts orders and refuses to kiss her dead father (13 min 27). The emblematical meaning of this act lies in disapproval of established Catholic and militarist models embodied in her aunt and the servicemen present at her fathers funeral. Anas further rebel against her aunts rigorous education up to attempt to shoot (88 min 41) and to poison her (91 min 09) in the climax could be interpreted as an appeal for emancipation of the refreshed generation, the yearning to burst the bonds of patriarchal family and to assert womens rights in the society (Helen Graham 1995, 329). Yet Ana re-plays this rebellion in the background with a doll blaming her disobedience (66 min 09).Girls dynamism and thirst for work on are opposed to her grandmothers Josefina Daz immobility and passivity. Her paralysed and dense figure stands for the nostalgia for the divine past of the Spanish Empire and is a true allusion to her powerlessness in Francos society. Her life was destroyed by wars and regimes she remains merely a silent witness of the present epoch finding her comfort in photographs that accompany by an old-fashioned song Hay, Maricruz bring back her sweet memories.Moreover, Saura attributes an emblematic soundtrack to every women generation in the film. The opening credits start with the melancholy piano pieceCancin y Danzas N.6 by Federico Mompou it is performed later by Anas mother with a symbolic reference to her abandoned biography of concert pianist and her unfortunate marriage (Helen Graham 1995, 308). Finally, Jeanettes rhythmic lineage Porque te vas (Because You ar e Leaving) is a pop song or so the failed relationships but it also has a connotation of Anas revolt and vitality. Thus, the self-aware role of diegetic music makes characters and their ideological values more vivid.Being an illustration for masculinities, Anas father Anselmo does not have any associated tune he is a former military officer from the Blue Division wedded to his Fatherland, though unfaithful tyrannical husband and neglecting parent. Overflowed with authoritarianism, Anselmo stands for a purest metaphor for the Francos military regime with all its dreads, oppressions and gender inequalities. His dominating position is illustrated in one of the photographs from the opening credits where he rides a horse (01 min 13).The legacy of the Spanish Civil War subsists in the sequence when children put in order their fathers cabinet asking questions about his military role (87 min 00). His gifts (pistol, gun and colours) could signify the transmission of values of the dying r egime, e.g. violence, brutal power and nationalism.Furthermore, Anselmos character reveals and completes the image of his passive wife Maria. Being the typical spouse of the Francoist society, she renounced her vocation so as to accept the upbringing of children (Helen Graham, 183-193). Indeed, she was not persuade of her success and this can suggest a hidden parallel to the dictatorship, when none of the artistic activities was beyond censors attention. Maria is also a vivid mannikin of a victim recluse in the house dying in agony, as it was the destiny of the Second Spanish Republic that did not lived up to Spaniards expectations.Redefinition of gender roles of the parents takes place in the domestic play staged by the children where Ana and her elder sister Iren Conchita Prez act their parents (37 min 59). Performing the mise-en-abme of their conflict, Ana metamorphoses her mothers character according to her rebel head that stands for a shift in the new generations mind. This scene appeals to the open-ending (102 min 06) when girls leave their family house for the school accompanied by the soundtrack Porque te vas foreshadowing Spains optimistic opening to the world.All in all, these examples do not pretend to be exhaustive but seem sufficient to evaluate Sauras creative authorial insight and his attempt of dramatising the historical background in terms of family life. So the childs trauma in the film refers to the disease of the nation under the infamous Francos dictatorship. The semiotic of Sauras film including the non-linear narrative, cinematographic blurring of the events delinquent to the camera movement and its different angles use of diegetic music and sounds, natural lightning as well as actors play, all this might have contributed to censors confusion and they allowed its release without any cut, moreover it was awarded the Grand Prize of the Jury at Cannes Film Festival. RR can be also compared to the earlier works by Saura La prima Anglica /Cousin Angelica Carlos Saura, 1974 and El jardn de las delicias/Garden of Delights Carlos Saura, 1970 which plots are also built on the family life with inevitable political subtext oriented on the intellectually engaged viewer.Word count 2236 wordsFilmography backup Cra Cuervos (Raise Ravens)Director Carlos SauraScreenwriter Carlos SauraCinematographer Teodoro EscamillaEditor Pablo Gonzlez del Amo symphony Federico MompouYear of release 1976Production Company Elas Querejeta Producciones Cinematogrficas S.L. videodisk reference E166377

Discharge Plans: a Case Study

leave out Plans a Case StudyIt whitethorn baffle as a shock to selltakers of the patient that bump off g agencying may commence as soon as a patient has been admitted. This does non necessarily mean that the patient is being write outd for plaza, and rather it performer that plans are being put in place for a thriving fire plan to take place. Information is ga on that guide ond about the patient, how they live, for example, do they live with sepa straddles, are they dependent or independent (Birjandi Bragg 2009). Caretakers are shapeively pretendd in a electric offload plan provided the patient gives consend. erstwhile the patient shows improvement, it is clear that further recovery in a infirmary set-up is non likely to take place and thus they are sent to an environment they may adopt to their necessitate their home.Birjandi, A Bragg, (2009) say that discharge planning is inseparcap subject and should be dvirtuoso right, whether the discharge is to a ren ewal center, a nursing home or the clients home. wellness check practitioners should ask an ideal discharge plan as studies take in shown that improvement in hospital discharges with great out induces when appropriate discharge plans are made.health fear givers, family members and patients themselves have got a great role to play after discharge in maintaining good health. Even though discharge planning is essential in patients health there is inconsistence in some(prenominal) the discharge performance and the quality of discharge planning in most of the health safekeeping system.In this paper, we shall look at a discharge plan for a client with the cerebral vascular accident from hospital to their home. We shall look at initial assessment of the client at the conviction of admission coiffure the possible discharge takes, family involvement in decision making and how to channel the client to their destination.Birjandi, A Bragg, L. (2009) describe discharge planning as a method used to decide the requirements of a patient as they channelize from one level of foreboding to a nonher, only doctors may approve patients release from a health facility, and the actual discharge plan may be done by a nurse, publication omnibus, case manager. tortuous conditions much(prenominal) as cerebral vascular accident may have a squad approach. Well organized discharge planning may reduce the chances of re-hospitalization and aid in recovery ensure medications are comfortably prescribed and administered correctly. In general a discharge plan should involve the fareing evaluation of the client by qualified practitioner, discussion with both the client and the phencyclidine hydrochloride, planning of the transfer process and homecoming of the client, de stipulationining whether the do bytaker urgencys to a greater extent development or whatsoever other physical body of retain, referral to support an organization or care agency and finally arranging f or follow up activities.In our case we shall look at Ms. Kate a 76 year-old female who was admitted from the emergency department with a diagnosis of Right Cerebra vascular Accident. Her Past Medical History includes hyperlipidemia, hypertension, osteoarthritis, and osteoporosis.Neurological left-sided weakness for the past 2 days, awake, alert, and oriented to somebody, place, and time. Denied s bulwarkowing difficulties, no visual defects and denied pain.Medications Aspirin 81mg per oral daily acetaminophen 650mg per oral when necessary for painCerebral vascular and pulmonary located on a cardiac monitor, findings indicated normal sinus rhythm. Vital signs taken every 4 hours, pulse 82 blood pressure 168/64 respirations 20. Lung sounds were clear to auscultation bilaterally. Oxygen Saturation on room air 97%.Gastrointestinal Abdomen soft, non-tender, non distended, positive bowel sounds. Bowel effect presentGenitourinary Voids freely, requiring supportance to the bathroom. Ou tput approximately 1000ml/day. Brief installment of dysuria on admission.Integumentary skin intact, no lesions nonicedMusculoskeletal ready range of social movement right side limited range of motion on the left side required assistant to get into a wheelchair. History of recent balance problems.Psychosocial lives with daughter in a 2 story home occupation retired teacherDischarge needs were discussed with the caretaker, these include the physical condition of the family before and after hospitalization, the tokens of the kind of care required by the client were discussed, included information of the patients prognosis, what activities she might need to help with information about the clients medication and diet should be given over, any extra equipment that was deemed necessary such as wheelchair, oxygen and who will be in charge of the clients meal preparation, transport to referrals and support groups.The daughter who lives with Mr. Kate was involved in the discharge proce ss, her ability and willingness to provide care to her mother was assessed, and the results were as follows she felt it was too early for her discharge, as she did non have time to spare to take care of her mother as her work was demanding. She besides had meets about she would go about transporting her mother from the bed to her chair and winning her to the bathroom. She was referred to help agencies that assist in taking care of patients at their homes at a paid payment. Several agency information was availed to her, with instructions to come up with a decision on which one to use. She was also given a choice to hire an singular at a fee or hire nurses or case managers or other persons familiar with the condition.Ambulance services were given as an option to transport the patient to their home at a small fee at the time of discharge or the client may use assisted transport to their homes, wheelchair or stretchers were suggested be used for our client as she could walk with a ssistance. This was done in ad forefrontguardce and the patient was fully responsible for this kind of transport arrangement.Discharge planning varies according to the hospital set up and the person who initiates it, and what kind of follow-up is needed, and whether the care takers are assessed for their ability to cater for the clients needs. The transition of care and discharge planning all centered on improving the quality of care administered to a client, for example, pedagogy the care givers and training them on the conditions of their patients, encouraging preventive care and including caretakers to be part of the health care team. Simple steps such as exc interruption patients progress regularly with the doctors or the health team increase the chances of potent follow up care. Telephone conversions, post discharge with doctors also helps to sojourn problems and improve care at home.Corey, G., Corey, M., Callanan, P. (2003) suggest that relative to discharge planning with some patient, there may be underlying issues that contri only whene to respectable dilemmas. As case managers, we should take reasonable steps to safeguard the interests and rights of those clients. ethical dilemma occurs when an individual has to choose between two or more conflicting ethical standards. There is no one right dissolver and there is no easy answer Codes of ethics provide guidelines, but dont necessarily tell us what to do. Using a hierarchical ethical decision-making approach privy help you achieve an satisfactory resolution. Mattison, (2000) reminds us that utilizing an ethical decision-making model doesnt result in bias-free decisions. Our set still come into play utilizing an ethical decision-making model and we may not be aware of it First of all, it is principal(prenominal) to remember clients rights to self ending and autonomy clients have the right to make poor decisions. However, the role of the case manager is different in this situation depending o n the clients cognitive capacity for decision making. If the client has capacity, the focus is on ensuring the client is making an aware decision and reassuring the care team, which includes the family, about resources to maximize safety. If the client does not have capacity, the focus is identifying someone who washstand act on the clients behalf and exploring alternatives for creating a safe discharge in respect of the clients wishes. For the clientWhen the care team perceives discharge unsafe Promote informed consent this involves educating the client about the teams concerns related to his or her safety and potential consequences associated with an unsafe discharge. study and encourage the use of resources to maximize safety, this involves identifying the services the client will need in a lesser care environment for the discharge to be successful. For the care team May not be aware of resources on hand(predicate) to enable older adults to live safely in their own homes fr eshen uping these resources can eliminate concerns. May be worried about remote dangers that should not trump client autonomy and self determination, i.e. If there was a fire, he would have difficulty escaping.When the care giver does not appear able to provide care. Sometimes family members or other caregivers wish to care for a client in a lesser care environment, but there are concerns about their ability to do so. In this situation, family/caregiver education is an important intervention.When the caregiver does not tickm able to provide care Approaches to family/caregiver education Convene a team conference with them to look backward the clients level of care and specific care needs. crap the individual assume full responsibility for care for a degree of time while in a safe environment (i.e. lock a 4-hour shift as his/her loved ones caregiver in the nursing home so he/she is fully informed of what to expect in terms of career. Often this will result in the family member re alizing for themselves that the care is too some(prenominal) and they will either not be able to do it or will need to have outside support. Alternatively, sometimes family members will actually do well, relieving the teams fears about their ability. Try a short trial visit in the lesser care environment, say 24-48 hours, with a planned return to the higher(prenominal) care setting to debrief re problems encountered.When a client or caretaker refuses necessary service again, it is important to remember clients rights to self determination and autonomy clients have the right to make poor decisions. However, sometimes what seems to be a poor decision is based on misinformation or other concerns it is important for case managers to explore factors contributing to the refusal of services deemed necessary by the care team. Potential factors contributing to service refusal Cost sometimes clients and their families dont feel recommended services are (or will be) affordable. Have referred agency review associated costs with them sometimes services are not as much as anticipated. Assist client/family to access sources of financial support such as Medicaid. Reframe costs as in terms of future savings, i.e. paying a little for care now will prevent expensive hospitalizations in the future. Discomfort with the thought of strangers in the home. Validate this concern it is disquieting having unfamiliar people help with intimate tasks in ones private domain. Arrange for client/family to meet potential service providers in advance of time to minimize anxiety.Additional factors potentially contributing to service refusal misunderstandings regarding the utilisation of recommended services. Feelings of guilt or shame related to not being able to provide all care independently. Recommended services dont turmoil client/familys cultural belief system. Past negative experiences with exchangeable servicesCaretaker unwilling to have client return home this is one of the most heart-wrenching ethical dilemmas to deal with and can bring up some issues of counter-transference good self-care and supervision is important. Things to keep in mind Client has a right to return to his or her own home, caretaker has a right not to provide care if this is something he or she is uncomfortable with, There may be a history of domestic violence or other traumatic relationship issues contributing to spouse/partners reluctance, match/partner may be unaware of support services usable to assist with care management and that the Client may be at risk for elder abuse.For clients with capacity, living environments deemed unsafe may simply settle differences in lifestyle choices between client and the care team. For example, clients home is cluttered, smells like cats, and there are dirty dishes and dust everywhere, but is not actually hazardous in any way. Case managers role advocate for clients and educate them, offer services to assist client with home management. If hom e is in disrepair, infested with rats, covered with mold and decomposition reaction garbage hazardous situation indicative of deeper problems. Case managers role further assessment regarding clients capacity and whether interventions can make home livable recognize that sometimes it is just not possible for clients to return homeWe may conclude by stating that in force(p) discharge planning and transitional care have real pull in in improving the out-come of a patient and bringing down the rate of re-hospitalization of the same patients.ReferenceBirjandi, A., Bragg, L. (2009). Discharge planning handbook for health care Top 10 secrets to unlocking a new revenue pipeline. Boca Raton CRC Press.Corey, G., Corey, M., Callanan, P. (2003). Issues and ethics in the helping professions, 6th edition. Pacific Grove, CA Brooks/Cole.Mattison, M. (2000). Ethical decision-making The person in the process. Social Work, 45 (3), 201-212.The Arnolfini Portrait by Jan van van van Eyck AnalysisTh e Arnolfini Portrait by Jan van Eyck AnalysisJan van Eyck. The Arnolfini Portrait.Jan van EyckThe Portrait of Giovanni (?) Arnolfini and his Wife Giovanna Cenami (?) (The Arnolfini Marriage). 1434.Oil in oak.81.8 x 59.7 cm.The National Gallery, London.The Arnolfini Portrait startles us by its apparent realism and forethought to detail, which seem to anticipate Dutch painting of two centuries later. Much of the effect is owing to van Eycks use of oil-based paints. He is frequently called the inventor of oil painting, though it seems more likely that he and his comrade discovered the potential of the new average by developing a varnish which dried at a consistent rate, allowing Jan to make a glossy colour which could be applied in transparent layers or glazes and put on the glittering highlights with a pointed brush (Gombrich, 240). The new medium was miraculous in its suitability for depicting metals and jewels (as well as the individual strands of hair in a dogs coat), and, as Sister Wendy Beckett says, more significantly, for the vivid, convincing depiction of natural light (Beckett, 64). equally original is the setting and milieu, for this is a bourgeois commission (Levey, 68), set not in a palace or a church but in a room in an ordinary house, every detail of which is depicted with total accuracy and naturalism, and shown, as Sir Kenneth Clark noted, by a miracle that defies the laws of art-history enveloped in daylight as close to experience as if it had been observed by Vermeer of Delft (Clark, 104).Despite the naturalism of the picture show, it is likely that the objects depicted are rich in figureic meaning. The couple stand in a room, shown with precise concern for office Levy calls it a perspective cube (Levey, 68). They are polished very richly, and stand in poses that suggest ceremony and serious purpose, therefrom the supposition that we are witnessing a marriage as van Eyck is doing quite literally. He can be seen with another witness reflected in the convex mirror on the wall, i.e. standing at the point from which the perspective view runs, and he has left his signature above the mirror, in a sound Gothic script, saying that he was here (only a moment ago, one might think (Huizinga, 259)), not just that he painted this. The couple stand apart, as if separated by honoring considerations. He takes her right hand in his left, and raises his right as if to fatten out a vow or pledge. She has a shy expression, while he is earnest and solemn. His dress is sumptuous and expensive, hers is lavish and modest, in green, the colour of mettle (Baldass, 76). If this is the holy sacrament of marriage, to complete its validity there should be consummation, which is why we are in a bedroom.In other parts of the room are objects painted with scrupulous accuracy, which at the same time have an iconographic purpose which is relevant to the ritual of marriage. The little dog is a symbol of fidelity. The shoes cast aside show th at the couple stand unshoed since this is the ground of a holy union (Beckett, 64). The fruit on the windowpane sill are either a reference to fertility or a reminder of the fatal apple. The single candle flame in the magnificently rendered candelabrum a light which is not necessary for illumination suggests the midriff of God. Carved on the chair back is an image of St Margaret, a perfection associated with childbirth, and the arms of the chair and the prie-dieu are decorated with the lions of the throne of Solomon. Most undischarged of all is the painting of the mirror, which with its convex shape reflects back the whole interior, unitedly with the image of the painter and another man. Its frame is decorated with ten medallions viewing events from the life of Christ, intended to emphasise that the Original Sin is atoned for by the rut of Christ (Baldass, 75).To emphasise the symbolic meanings of the objects in the painting (of which we cannot always be certain) is by no means to detract from the astonishing realism of the scene. The van Eycks began their careers as manuscript illustrators, and the concern for detail is apparent everywhere. The dog is intensely real, charming, and of no identifiable breed. The texture of materials is rendered in the finest detail, in the gilding of the candelabra and the way the light catches it, the glint of the beads in the rosary hanging by the mirror, and of course the glass of the mirror itself, and its concave shape talent a curved reflection of the room. The light is caught precisely on the interior curve of the medallion roundels in the frame. The presentation of the clothing is meticulous, both in the texture of the cloth and in the way it hangs on the body. Even the penetrate of the wood in the floorboards is exact. Colour too is handled with great subtlety, the green of her dress, with traces of relentless in the undersleeves, set off against the rich red of the bed hangings, both lit by the single sou rce of light, the window to the left. It is as if a simple corner of the real world has suddenly been fixed on to a panel as if by magic (Gombrich, 243).Huizinga makes a point related to this concern for total realism, that it is immensely valuable for us to see a late medieval artist depicting private life, and not bound by the requirements of the court or the Church. The Master need not portray the majesty of divine beings nor minister to aristocratic pride (Huizinga, 258). vanguard Eycks Gothic signature and declaration on the wall suggests that the whole piece might be a sort of legal act of witnessing. The whole conception marks the shift from the medieval to the advance(a) world, because the witnessing is literally established for us through the precise application of the rules of perspective. The scene is viewed through the eyes of the man reflected in the mirror, and it is the view of the single beholder which is to form the convention of painting from van Eyck until the end of the 19th century. In the Arnolfini portrait the artist became the perfect eye-witness in the truest sense of the term (Gombrich, 243).Works CitedBaldass, L. Jan Van Eyck. London Phaidon, 1952.Beckett, Sister Wendy. The Story of Painting. London Dorling Kindersley, 1994.Clark, K. Civilisation. A Personal View. London BBC, 1969.Gombrich, E.H. The Story of Art. London Pahidon, 1995.Huizinga, J. The Waning of the Middle Ages. invigorated York Anchor, 1949.Levey, M. From Giotto to Cezanne. London Thames and Hudson, 1962.