Monday, January 20, 2020
Salinity Changes :: science
Salinity Changes I chose to experiment with the effects of salinity changes on the polychaete, Nereis succinea. Along with the other members of the group, Patty and Jeremy, I was curious to see whether the worms would engage in adaptive behavior when placed in a tank of water of foreign salinity, or whether they would simply continue changing osmotically until they reached equilibrium with the environment. The first step in our experiment was to simply observe the worms and get a "feel" for the ways in which they act. We did this on Wednesday, May 7, 1997 from 9:30am to 10:30am. Also on this day we learned how to mix and measure salinity, practiced weighing the worms, and deciding our exact schedule as far as when we would come in and for how long, etc. From what I observed, the polychaete is a salt-water worm that has adapted to live in estuaries. We kept the control tank at 20 parts per thousand to 24 parts per thousand, and the worms seemed very content and healthy at that level. The worms on which we experimented ranged in size from approximately four inches to approximately six inches. They weighed from 1.8 grams to 4.6 grams at the beginning of the experiment. They have a pinkish, almost salmon color to them, and on two opposite sides, they have these crimson hairs lined up in a row, stretching the entire length of their bodies (the hairs are less than an eighth of an inch long). If we were to call the two lines of hair "east and west", then on the "north and south" sides, there were dark lines that also stretched the entire length of their bodies. These were their primary blood vessels, and though we tried to locate the pulse that is supposed to conspicuously travel up and down this vessel, we were not able to locate it, exce pt once on one worm for less than 30 seconds. Also I often was not able to tell the difference between the head and the tail. Their actions were very basic. They seemed to like to stay still for the most part, hiding underneath the little bit of seaweed we put in the tank. We also put a glass tube at the bottom of the tank, thinking that they might try to crawl in there for safety, but we never saw them in there.
Sunday, January 12, 2020
Most Violated School Policies Essay
ââ¬Å"The formation of character is one of the most important features of the educational system at the University of Baguio. For this reason, the imposed discipline, while observant to the rights and feelings of others, is firm, especially when the reputation of the student body and institution is at stake. Students are expected to manifest both within and outside the University, the respect for order, morality, personal honor, and rights of others, which is required of God-fearing men and women.â⬠(UB student handbook, Article XIV: 2010 Edition) Schools have policies that are being implemented for the general welfare of its constituents. These policies provide a set of rules that the students, teachers, etc. should follow. These rules are necessary for the order and uniformity of the students within the school premises. Even with the presence of these rules, some of the students violate them disregarding the sanctions that go along with it. The word policy originated from the Latin word politia or polity. Defined as a definite course of action adopted for the sake of expediency, facility, etc.; an action or procedure conforming to or considered with reference to prudence or expediency. (http://dictionary.reference.com/browse/policy) Educational policies are significant because these are rules that are used in schools to discipline students. These rules determine how effective and efficient the school is in managing students and personnel. The policies have great influence in the quality of education in an area. Educational policies are important because effective policies can help students in school on their day to day activity. For a policy to become effective, it must have a well-pronounced outcome, assumptions should be clear and explicit, linkage to organizational direction must be present, due process in the development has to be observed, the priority should be on the public interest, expectations have to be made, the policy must be both efficient and effective, results should be stated in measurable terms, evaluation of results should be capable, funding and allocation of resources must be appropriate, accountability should not be vague, it should be lawful and administered, it must be based from history, ideas have to be verified before implementation, and the policy results should be well stated. (http://manuals.ucdavis.edu/resources/coordinators.htm) One of the factors why students violate school policies can be explained through their different behaviours. Behaviour is the manner of behaving or conducting oneself; the aggregate of all the responses made by an organism in any situation. (http://dictionary.reference.com/browse/behavior) Based on Operant Conditioning of B.F. Skinner ââ¬Å"All behaviour caused by external stimuli and all behaviour can be explained without the need to consider internal mental states or consciousness.â⬠It means that the actions done by students are responses to its environment. (http://www.learning-theories.com/behaviorism) Another type of behaviourism is Radical Behaviourism which is the connection to role of emotions and the major differences in the acceptance of mediating structures and etc. In order to resolve this problem the group found out that the best solution is the use of Biometric identification systems which can be grouped based on the main physical characteristic that lends itself to biometric identification. There are different kinds of biometric system in which the fingerprint biometrics is the commonly used one. There are also other biometric identification systems such as the hand geometry, palm vein authentication, retina scan, iris scan, face recognition, signature, and voice analysis. There are biometric systems that are composed of more than two physical characteristics to be identified. Statement of the Problem 1) What are the reasons why these students violate such policies? 2) What are the most common policies that are violated by the violators? 3) How can the proposed biometric ID system control students from violating the wearing of ID? Scope and Delimitation This proposal was limited only to the students of the University of Baguio including the administrative staff, teachers, faculty and utilities. Significance of the Study With the help of this proposal, the University of Baguio would be able to control every entrance and exit of the school. The act of not wearing IDs for the students would no longer be possible because they will not be able to enter the school without their IDs. The biometric ID system would strengthen the security of the academe for the safety of the students. The time when the students would enter and leave their classes would be monitored. The system would be able to determine if the students will skip their classes. Also, the entry of thieves and pick-pocketers within the school premises would no longer be possible due to this proposal. With this modernized system to be established in the University, all of the students and personnel of the school will benefit from it. FRAMEWORK The leniency of the marshals in checking the IDââ¬â¢s and proper wearing of uniforms, students not following the rules and regulation of the school and to monitor the entrance and exit of the students of University of Baguio within the schoolââ¬â¢s vicinity are the reasons why the researchers proposed an ID Biometric System. The students violated the above mentioned rules due to leniency, habitual actions of students, laziness, and unwanted behaviours of students. Some students just wanted to violate such policies because they thought that it was a fun and interesting thing to do. If the proposed project will be fully implemented, there will be organization in the school campus and an effective monitoring of the passage ways in entering and going out of the school. Based on these factors that we have retrieved on the data that we have collected, the theory that would best support our proposal is the belief theory. We chose this theory because we, the researchers, believe that the proposed biometric ID system will work and we will therefore translate these beliefs into action. The researchers foresee that this would be able to control the reoccurring problems that are being done by the University of Baguio students and that is the reason why we have made this very proposal. DEFINITION OF TERMS * Biometric ââ¬â pertaining to, noting, or using a personââ¬â¢s unique physical and other traits for the purpose of identification and security. * Coincide ââ¬âto occupy exactly corresponding or equivalent positions on a scale or in a series * Identification ââ¬â psychological orientation of the self in regard to something (as a person or group) with a resulting feeling of close emotional association. * Implementation ââ¬â the act of implementing, or putting into effect. * Policy ââ¬â a definite course of method of action selected from among alternatives and in light of given conditions to guide and determine present and future decisions. * Proposal ââ¬â An act of putting forward or stating something for consideration. * Scanner ââ¬â a device sensing a recorded data. * System ââ¬âa group of devices or artificial objects or an organization forming a network especially for distributing something or serving common purpose. * Units ââ¬â a piece or complex apparatus serving to perform one particular function ASSUMPTION The group assumed that if the proposal is to be approved by the Board of Directors, it would be implemented immediately. The ordered units will be put up to the designated areas and the Biometric system will start functioning. With the new system of the school, there will be an organization in school activities. The school then will be a safe and humane place to study. CHAPTER II REVIEW OF RELATED LITERARTURE I. EXECUTIVE SUMMARY In the millennial yearsââ¬â¢ rapidly advancing technological world, the issue of security is becoming a more and more pressing matter. Computer crimes and identity theft related crimes are becoming more rampant and apparent, requiring better solutions to cope with them. One of the proposed methods for solution for future high-technology security issues lies in the field of biometrics. Biometrics defined simply in its regard to security matters is any method or technology which uses biological measurements to facilitate authentication for verification or identification of a particular user. Although still in major phases of development, biometrics is seen as a highly valuable initiative to one day replace present day security authentication practices due to its ideal concept of being virtually risk free and non-inaccurate. This paper will analyze all aspects concerning biometrics including its overall concept, how a biometrical authentication system works, controversial issues concerning its implementation, its current uses in technology, business, and governmental agencies and its future developments. II. CONCEPT OF BIOMETRICS IN SECURITY A. TWO CATEGORIES Biometrics can be subdivided into two main categories. These include physiological and behavioral categories of specific measurements. Physiological measurements include biological characteristics inherent to individual human beings. Some of these would include facial structure, fingerprints, hand structure, iris and DNA structure of a particular person. Behavioral measurements measure dynamics in individual behaviors. Some of these would include keystroke behavior, signature and voice recognition. B. VARIOUS METHODS FOR COLLECTING MEASUREMENTS FACE: Facial recognition involves technology which scans the face and interprets the data as recognizable characteristics of a particular user, including the size and shape of the face and their relationship to each other. Facial recognition is a natural method that humans use to identify people they come into contact with, but it is not an easy method to duplicate for identification on a biometric system. This is due to changes such as plastic surgery, weight gain or weight loss which can cause the results to be inaccurate. Another emerging method of collecting biometric information involving the face is facial thermograph which detects and measures the heat patterns created by the branching blood vessels within the face and emitted through the skin. FINGERPRINT: Fingerprint analysis has been around for centuries as a means of identifying people. It has been evidenced that ancient Chinese used fingerprinting to sign legal documents as long ago as 1000 BCE. Fingerprint analysis involves examining the ridges on an individual fingerprint in order to match them to a specific owner. HAND: Hands can be analyzed and measured in a few different ways. Aside from fingerprints, another way to use hands in biometrical analysis is through hand geometry which measures and compares the different physical characteristics of a personââ¬â¢s hand such as shape and size. Another method concerning hands is palm vein authentication which uses an infrared beam to penetrate a personââ¬â¢s hand and measure the complexity of the vein patterns within that personââ¬â¢s hand. This specific method is more useful than hand geometry measurement because palm vein patterns are internal to the body, and difficult to be counterfeited by an illegitimate use r. EYES: Eyes can be used in two different ways as a part of a biometrical scrutiny process. Iris scanning involves analysis of the rings, furrows, and freckles in the pupil of the eye of a particular human. Retina scanning involves analysis of the capillary blood vessels located in the back of the eye. DNA: DNA verification uses analysis of genetic information found within a specific personââ¬â¢s DNA code (or genetic code) as a means of identifying that person. DNA analysis is often used now as a method for identifying paternity of a personââ¬â¢s child or in forensic crime investigations as a evidence for convicting individuals for crimes such as murder or rape. ODOR & SCENT: Odor and scent analysis is a fairly new development in biometrical analysis and is based on a theory entitled ââ¬Å"individual odor theory.â⬠This theory is premised on the notion that each person has a particular and unique scent. In forensics, odor analysis has been used to identify people by the use of blood hounds (dogs). VOICE ANALYSIS: Voice analysis involves analyzing of the pitch, tone, cadence, and frequency of a particular userââ¬â¢s voice to facilitate authentication. Voice analysis can technically be seen as both a physiological trait as well as a behavioral trait because voice is not only inherent to a specific person, but also the way that person speaks is also a unique and measurable trait. SIGNATURE: Signature analysis analyzes the way a person writes his/her signature as a basic means of identification. Although handwriting techniques vary for individuals throughout their lifetimes, handwriting identification is seen as a scientifically reliable criterion for measurement. KEYSTROKE: Keystroke analysis measures the dynamics of a personââ¬â¢s typing rhythms to facilitate authentication of a particular person. Keystroke analysis may be more useful than other methods of identification because unlike other biometrical authentication methods, keystroke dynamics can still be measured throughout the computer session even after the access control point has been successfully passed by the user. GAIT: Another new developing biometrical technique is one which measures gait which is a personââ¬â¢s particular way of walking and facilitating motion. Gait can be used effectively to recognize people coming in from a distance. COGNITIVE BIOMETRICS: Cognitive biometrics is also a developing method in biometrics which uses measurements of brain activity responses when triggered by specific stimuli and matched within a computer database as a means for authentication of a particular user of the system. Currently, systems which utilize this kind of method are being created to trigger responses to odor stimuli. In the future, other triggers may be used to create responses. C. PARAMETERS Given the various methods for collecting biometrical data, each of these techniques must pass a set of parameters to a degree in order to be considered as a viable method for integration within a biometrical system. These parameters include: UNIVERSALITY: The principle of universality stipulates that every user should have the characteristic. Sometimes, in some cases this may not be true as it the case of a person with no hands who cannot use a hand analysis machine for verification. UNIQUENESS: The principle of uniqueness involves the degree of how separable the biometric characteristic is between each individual person. PERMANENCE: The principle of permanence involves how well the technique used for measuring is resistant to changes such as aging, human developmental processes such as pregnancy, or things such as plastic surgery. COLLECTABILITY: The collectability principle is related to how easy the method is to acquire. Easier methods, as well as more sanitary methods are more ideal for a viable biometrical system. PERFORMANCE: The performance principle is concerned with the accuracy, speed and the strength of the technology used to authenticate the user. ACCEPTABILITY: The acceptability principle is related to the degree of social approval for use of the technology as a means for collecting biometrical data. CIRCUMVENTION: Circumvention involves, the biometrical systemââ¬â¢s ease of adaptation to a substitute should the system need one. 1. COMPARISON OF VARIOUS METHODS WITH PARAMETERS (Based on the Comparison of Various Biometric Technologies table by A.K. Jain, et. al. 2004) FACE: Facial scanning has a high level of universality because it is virtually impossible for any living human-being to possess no form of a face. Facial scanning scores low in its level of uniqueness due to the fact that it can be difficult to distinguish characteristics from person to person at times. This is due to some people having similar features which may be hard to distinguish. In the case of identical twins, this may not be a useful means for authentication at all. Facial scanning scores a medium ranking under the permanence factor. This is due to the fact that although a personââ¬â¢s actual facial characteristics never change, they are subject to transformations such as aging, weight gain or loss, and alterations such as plastic surgery or accidents. As far as collectability, facial scanning scores a high mark due to the fact that, going along with its high level of universality , every living human-being does have a face which is easy to locate on a human body. Facial scanning is low in performance because it can tend to be highly inaccurate due to the dynamical aspect of human faces. Facial scanning also scores high in acceptability as a comfortable and accepted way people would want to collect their biometrical data, but it scores low in circumvention because it doesnââ¬â¢t have an easy substitute which can replace it. Facial thermograph scores high in universality, uniqueness, collectability, acceptability, and circumvention. It scores low in permanence and medium in performance. FINGERPRINT: Fingerprinting scores medium in its level of universality. This is due to the fact that although all people inherently possess fingerprints at birth, fingerprints can still be damaged via rare skin diseases or through loss of fingers, abrasions, etc. Fingerprinting has a high level of uniqueness and a high level of permanence. Fingerprinting has a medium level of collectability and performance due to the fact that although it is easy to acquire for measurement, there is a 5% failure to enroll rate which exists for everyone even with good sensors and analysis software. Fingerprinting has a medium level of acceptability by the public as a means for collecting data. This is because although it is an easy method of measurement, it may be unhygienic, inaccurate as well as easy to duplicate unlawfully. Fingerprinting has a high level of circumvention due to its ease of adaptation to a substitute if deemed necessary. HAND: Hand geometry scores medium in its universality, uniqueness, permanence, performance, acceptability, and circumvention. Hand geometry scores high in its collectability aspect. Hand vein analysis also scores medium in universality, uniqueness, permanence, collectability, performance, and acceptability; but it scores hi gh in circumvention. The overall reason why hand analysis carries a medium ranking in virtually all the parameters listed is because of a human-beings ability to live without them. EYES: Eye analysis provides for a more accurate analysis approach in a biometric system. Iris scanning scores high in universality, uniqueness, permanence, performance, and circumvention. This is due to the complexity and exclusivity of iris patterns which does make them a better choice method of biometric authentication. Iris scanning received a medium score in collectability and a low score in acceptability due to the complexity of the method and its suitability to the general masses. Retinal scanning also received similar scores, scoring high in universality, uniqueness, performance, and circumvention; receiving a medium score in permanence, and low scores in both its collectability and acceptability. DNA: DNA analysis has split results, scoring high in universality, uniqueness, permanence, and performance, and scoring low in collectability, acceptability, and circumvention. Although DNA can be extracted from a numerous amount of different ways, a method of extracting DNA in order to be used in a biometrical authentication system cannot be done without seeming invasive or unsanitary. Also, many people may be concerned with privacy matters concerning DNA analysis. ODOR & SCENT: Odor and scent analysis scores high in universality, uniqueness, and permanence. Although scents can be masked by deodorants, fragrances and lotions, the underlying biological scent of a person cannot be concealed. Odor analysis also scores low in collectability, performance, and circumvention, with a medium score in acceptability. VOICE ANALYSIS: Voice analysis scores medium in its universality and collectability. It scores low scores in uniqueness, permanence, performance, and circumvention, making it not an ideal method for use in a biometrical system. This is because not only does a personââ¬â¢s voice change throughout time, but people can knowingly change their voice or use technology to change their voice (such as a recording) in order to dupe a system. Voice analysis scores high in acceptability due to the simplicity of the method. SIGNATURE: Signature analysis scores low in universality, uniqueness, permanence, performance, and circumvention. It scores high in collectability, and acceptability. Signature analysis may not be an ideal method for authentication because although graphology experts can distinguish identities through meticulous handwriting analysis, it may be more difficult for a biometrical system to accurately analyze differences in handwriting for each individual person. This is because a personââ¬â¢s handwriting can change depend on various things such as the mood of the person. Also some people may write similarly or use forgery to try to dupe the system. KEYSTROKE: Keystroke analysis is another method which may be seen as not as reliable as some of the other methods for collecting biometric information. Although it has the advantage of being able to simultaneously authenticate a user while he/she is still within the work session, keystroke analysis scores low for universality, uniqueness, permanence, and performance. It also has medium scores for collectability, acceptability, and circumvention. This may be due to the behavioral aspect of typing which can be easily changed if a person learns to type in different ways. GAIT: Gait scores medium in universality and circumvention. Gait has low scores in uniqueness, permanence, and performance. Gait also has high scores in collectability and acceptability. Of all the various methods for collecting biometric data, some of the most reliable methods (according to the table by A.K. Jain et. Al) are iris scanning, retinal scanning, facial thermograph, fingerprint analysis, and DNA analysis. Some of the least reliable methods are keystroke analysis, signature analysis, and voice analysis. Overall, it appears that physiological data is seen as a more reliable method for collecting data than behavioral data. III. BIOMETRIC SYSTEM A. BIOMETRIC SYSTEM A biometrical system although seemingly complicated, has only two main steps, regardless of the methodology or the technology used to facilitate it. The system begins with a process called enrollment which is when the biometric information from individual users is collected and stored within a database and translated into a code or graph. In some instances data may be stored on a smart card which can be carried away with the user. The next operation of the biometrical system is called testing. During this portion of the system, biometrical data is detected and compared with that which is in the database. In order for a biometrical system to be robust, it is necessary that the storage and retrieval of data within the system be highly secured. (http://upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Biometric_system_diagram.png/800px-) A biometrical system can carry out two main functions. These include verification or identification. In verification, the systemââ¬â¢s objective is to authenticate the user in conjunction with another method such as a smart card, a username, or a password. With identification, the systemââ¬â¢s intention is to authenticate the user only on the basis of the biometrical data alone. The goal of this function is to identify the user according to the closest match within the allowable limit of the system. B. PERFORMANCE MEASUREMENTS The performance of a biometric systemââ¬â¢s technology can be broken down into a variety of probability descriptions. These descriptions indicate the level of accuracy the system is able to achieve. FAR- The first measurement is entitled False Accept Rate. This measurement determines the likeliness of a biometric system incorrectly accepting access to the system by an un-authorized user. This measurement is calculated by dividing the number of false acceptances by the number of times an identification attempt has been made. FRR- The second measurement is called a False Rejection Rate which measures the probability that a biometric system will incorrectly reject an authorized user from using the system. This number is calculated by dividing the number of false rejections by the number of authentication attempts. EER- Equal error rate stands for the rate at which FAR and FRR are equal. This measurement can be used to compare two different biometric systems. Whichever biometric system has a lower EER is considered to be a more accurate system than the other. ROC- Receiver operating characteristics deals with the systemââ¬â¢s accuracy within certain environments as it relates to False Rejection and False Acceptance Rate results. FTE- FTE stands for failure to enroll rate. This measurement is calculated as a percentage of the data which failed to pass through the system due to invalidity. Failure to enroll typically happens when the sample data is of poor quality and does not match the data which is stored in the database of the system. FTC- FTC is the failure to capture rate. This measurement measures the probability that the system will fail to pick up on a biometric characteristic when it is presented accurately. High calculations of this measurement typically mean that this authentication method will be difficult as well as frustrating to use. C. SUSCEPTIBLE AREAS OF ATTACK FOR BIOMETRICS The three most susceptible areas of vulnerability for attack of a biometric system are: 1) Copied-biometric attacks- where the attacker obtains a substitute for the true biometric sample in order to cause proper authentication to occur via the normal system procedures. 2) Replay attacks- where perpetrators obtain valid templates from the original user and then use them to directly dupe the biometric system. 3) Database attacks- where perpetrators access a template database and obtain the ability to replace valid templates with invalid ones. IV. ISSUES WITH BIOMETRICS A. IDENTITY THEFT ISSUE Although the ideal goal of biometrical authentication is to have ultimate prevention of identity theft, the issue of an illegitimate user having the ability to commit identity theft still exists within biometrics and can have even more dire circumstances than with non-biometrical authentication systems. Depending on the method used to collect the biometrical data, a personââ¬â¢s identity can be stolen easily. An example of this would be in the case of fingerprints which can be taken from inanimate objects such as glassware or metal objects and then duplicated in order to be used to dupe a biometrical system. The main problem concerning this issue is in the fact that if an individualââ¬â¢s identification is stolen by another, the legitimate user may never be able to undo the damage which has been created because, unlike with non-biometrical authentication, once biometrical data has been compromised, it is compromised for the entirety of the legitimate userââ¬â¢s existence. One proposed possible solution for solving the issue of identity theft is to only use a portion of the biometric data, so that if the data does become compromised, it will not be entirely lost. This way, if one part of the data is stolen, another part of the original userââ¬â¢s biometric data can be used to replace it. B. PRIVACY ISSUE Privacy can also be a staggering issue with the implementation of a biometrical system from a societal standpoint. Many people may not care to have all of their biological characteristics recorded on some medium for a variety of reasons. One concern is that if information is recorded on systems used at more than one location or by more than one entity, an individualââ¬â¢s movements can be tracked preventing anonymity. Safety of the legitimate users can become compromised, if malevolent individuals choose to target that person in order to obtain their goal. Another issue regarding privacy involves physical harm which can be done to an individual using a biometrical system. Physical harm can occur by use of unsanitary instruments used in the technology to obtain the biometrical information, which may cause the system to be considered unsafe. Another issue regarding privacy lies with the administrative ability to misuse userââ¬â¢s biometrical data without the consent of those users. Currently, few regulations exist to protect biometric information of individuals. C. SENSOR OBSTACLES Different types of technology (hardware & software) used within different biometrical systems can counteract one another, making it difficult to have standardized biometrical data. One of the reasons this problem exists is because each vendor of biometrical technology generates their own encryption methods for the recorded information. Unfortunately, many of these encryption methods do not coincide with one another making the use of biometrical systems more difficult and less efficient. The only way unification of the different biometrical systems can occur is by a standardizing process which would require exposing of all the concealed data. Unfortunately, this can also present a serious threat. D. FAILURE TO MEET PARAMETERS Another issue concerning implementation of biometrics is in the issue of a systemââ¬â¢s failure to meet parameters. In order for biometrical data to be interminable, the biological characteristic must be unique, universal, acceptable, collectible, reliable in regards to the performance and circumvention of the technology used to collect the data, but most importantly, the data must be permanent, which is the most fragile issue concerning the parameters of biometrical data. Unfortunately, most if not all biological characteristics are not guaranteed to be permanent. Many of them can be compromised via accidents, health problems or alterations such as surgery. V. CURRENT USES OF BIOMETRICS Although the field of biometrics as a whole is still in need of major development before widespread implementation will ever occur there are some entities including private industry and governmental agencies which currently utilize biometrical technology. Certain examples of American organizations which currently use biometric technology include: 1) Walt Disney World: Walt Disney World uses fingerprint analysis technology to authenticate the fingerprints of guests in order to ensure that season tickets are used by the authorized ticket owner. This is in order to prevent lost sales through ticket sharing, as well as thefts. 2) First Tech Credit Union: First Tech Credit Union is an Oregon based credit union which utilizes keystroke recognition technology for authentication of users on its online website. 3) Casinos: Over 100 American casinos such as the Imperial Palace casino in Las Vegas use facial recognition technology to identify and prevent known cheaters or dishonest patrons from entering into their establishments. 4) Missing Childrenââ¬â¢s Clearinghouse: A West Virginia based organization entitled Missing Childrenââ¬â¢s Clearinghouse uses biometric technology which utilizes scanned digital photographs to search for missing children. 5) Citibank Singapore: Citibank in Singapore uses fingerprint scanning technology for customers who use their clear platinum card for point-of-sale purchases. 6) Coca Cola: Coca Cola uses hand scanning machines to replace time cards for employees in order to document worker time keepinsg records. 7) Welfare crack-down: New Jersey as well as six other states use biometric technology to crack down on individuals who abuse the welfare system by claiming benefits in multiple names. 8) Notebooks: Computer products such as the Compaq Armada E500 are being developed to use fingerprint scanning technology to verify the identity of the user. 9) Prisons: Up to 100 American Prisons use biometric technology to regulate methadone dispersement among prisoners. VI. FUTURE DEVELOPMENTS IN BIOMETRICS Since the occurrence of the September 11, 2001 terrorist attacks, a surge in the demand for biometric technology has begun. Stocks in publically trade biometric companies such as Visionics, Viisage Technology, and Indentix have soared with the overall biometric technology industry projected to have revenues approaching $10 billion dollars annually by 2020. Emerging trends for future uses of biometric technology seem to lean more towards law enforcement, homeland security, and security within certain types of private industry such as in airport security or finance. Many credit card companies such as Mastercard and Visa are beginning to implement biometric authentication methods to verify card users. Also, the Immigration and Naturalization Service may begin implementing biometric technologies to identify illegal immigrants. Certain types of biometric technology which are becoming more widespread include access control facial recognition technology which is used to permit only authorized individuals to enter upon certain facilities, facial recognition passive surveillance technology which is used to monitor premises in order to identify possible terrorists or suspect individuals, and alert management which includes the use of real-time technology in association with biometric technology to provide security alerts of potential security breaches. Applications which use biometric technology will also have an effect on commerce, particularly in e-commerce to provide extra security for online purchases, and installation within certain personal items such as cars and cell phones. VII. CONCLUSION Although not that long ago, the concept of having biometric technology as a part of our mainstream society may have been seen as a science-fictional impossibility, technological innovation has grown to the point where it is becoming more and more of a reality. Although we are not quite ready for widespread implementation of this technology, as the need for better hi-tech security increases, research as well as investor and consumer confidence and innovation within the biometric industry is also expected to improve. Although no single biometric system method is without flaws, combinations of these various methods and technologies may provide the ideal security that we hope to attain one day. CHAPTER III METHODOLOGY There was difficulty in determining the real students of the University of Baguio because of the hard-headed students who cannot abide with the simple rules and regulations which was the reoccurring problems of the security. Due to this problem, the ââ¬Å"mandosâ⬠and ââ¬Å"magnasâ⬠can easily enter the schoolââ¬â¢s premises victimizing a lot of students. This was one of the reasons why such simple violations became a huge problem for the school. Regarding this matter, the group came up with an idea for a topic for their action research. Before they finalize their topic, the group went to the Office of the Student Affairs and interviewed the dean to know which rules are commonly violated by the students. After the interview, the group determined that the rules which are commonly violated are: a) wearing of I.Ds inside the school campus; and b) wearing of uniforms on the designated days. The group then convened and finalized their topic that would focus on ââ¬Å"A proposed Biometric ID system to control the reoccurring violations by University of Baguio students.â⬠Since there was already a topic to be talked about in the research, the group started to gather data which were relevant to the research proper like that of related studies and researches and terms that are significant to the study. After collecting relevant information for the research, the group prepared communication letters addressed to the deans of the different schools of the University and respondents likewise with the survey questionnaire. Upon approval of the deans of the different schools, the group administered the questionnaires to the respondents. The survey forms were distributed to the eleven schools of the University having ten (10) respondents each to see which results have the same percentage which were used to know the reasons behind these actions. After distributing the survey questionnaires, the group then retrieve the questionnaires and start tabulating the results. The tabulated data showed the reasons why the students violate these simple policies of the school. The result of the survey supported the proposal that were passed to the Board of Directors. The group then proposed the biometric ID system that will be put up in every entrances and exits of the buildings in the University. The biometric ID system will most likely be very costly but disregarding such amount, the administration will approve it and immediately ordered the said system. By the time the systems that had been ordered arrive, the people designated by the higher ops will put up such systems on the designated areas to make the University a safe and humane place to study. CONCLUSION In light of the findings, the following conclusions are hereby presented: Not wearing of ID has been a habit of the students. Sometimes the teachers themselves forget to check their students ID. The security guard also are not lenient in checking the IDs of these students. Because of this attitude most number of the student no longer uses their IDs. The students think that it is just fine not use their IDs. The researchers are found out that the school really need a biometric ID system. Approximately, one unit of the biometric system will cost more or less two hundred fifty thousand pesos. In such case the University of Baguio can still afford this system since it does not only help the students but it can also secure their safety With the help of this proposal it will lessen the burden of the security personnel. This proposal can also lessen the number of students violating the proper use of IDs. In such situation students can no longer use any ID because of the presence of finger prints. The students whether they like it or not would still be forced to use their IDs. Also, this proposal can help in the security of the school campus because outsiders can no longer come in because of the presence of finger prints. RECOMMENDATION Drawing from the conclusions that the researchers arrived at, the following recommendations are forwarded. The researchers would recommend the strict implementation of the rules and regulations of the university and the maintenance of the biometric ID system. In addition, each of the gates should be closed. Also, the lenient checking on the wearing of IDs should be done. The guards should monitor every student entering the university. In case the students lost their IDs, we recommend that a password that would allow them to enter would be provided by the OSA during the time of the IDââ¬â¢s loss. BIBLIOGRAPHY BOOKS * Addiction Today, Sept. 27, 2008. ââ¬Å"Prisons Use Biometrics to Manage Methadone.â⬠* Germain, Jack M., Sept. 11, 2003. ââ¬Å"Beyond Biometrics: New Strategies for Security. * New York Times, Nov. 15, 2008. ââ¬Å"Technology and Media, a Surge in the Demand to use Biometrics. * Osborn, Alice, Aug. 17, 2005. ââ¬Å"Future of Biometrics-Trends and Emerging Uses for Biometric Technology. * Panko, Raymond R., Corporate Computer and Network Security. New Jersey: Prentice Hall, 2004. * Risk Management, Mar. 15, 2005. ââ¬Å"Biometrics: The Future is Now. * Technology and Human Values Senior Seminar, 2008. ââ¬Å"Biometrics. * Tilton, Catherine J., Feb. 2006. ââ¬Å"The Role of Biometrics in Enterprise Security. * Wikepedia, Nov. 13, 2008. ââ¬Å"Biometrics.â⬠ONLINE * http://www.addictiontoday.org/addictiontoday/2008/09/prisons-use-bio.html. * http://www.ecommercetimes.com/story/31547.html?wlc=1226777438 * .http://query.nytimes.com/gst/fullpage.html?res=9F06E0DB163EF934A25751C1A9679C8B63&sec=&spon=&pagewanted=1 * http://www.video-surveillance-guide.com/future-of-biometrics.htm * http://www.riskmanagementmagazine.com.au/articles/FF/0C02DDFF.asp?Type=124&Category=1240 * http://www.dell.com/downloads/global/power/ps1q06-20050132-Tilton-OE.pdf >. * http://en.wikipedia.org/wiki/Biometrics#cite_note-jain_short_article-20 >.
Friday, January 3, 2020
Chapter 1 The Story Of Alaynas Tale - 1084 Words
Customarily, it was unprecedented for a woman who was promised to another to share more than one dance with the same partner. It could reflect poorly on both her house and the house of her betrothed. However, Alayna could hardly care less about prosperity in this case because she was in the arms of the man she wanted. To hells with what others thought of her. Alayna felt a blush bloom on the apples of her cheeks as she glanced down at his breast plate, ââ¬Å"Itââ¬â¢s probably been ages since youââ¬â¢ve had a proper tilt.â⬠ââ¬Å"Truly.â⬠The Dornishman agreed, ââ¬Å"The last tourney I went to was the tourney at Stormââ¬â¢s End held in honor of Lord Steffon.â⬠ââ¬Å"Iââ¬â¢d wager youââ¬â¢re itching to redeem yourself against our dear prince.â⬠She smirked, recalling how Griff hadâ⬠¦show more contentâ⬠¦Touching where his lips had touched her, she watched on wistfully as the scene unfolded before her as King Aerys called the newly knight Jaime Lannister to stand before the congregation. Two familiar presences found her causing Alayna to grip both Ashara and Griffââ¬â¢s hands. The trio observed as Jaimeââ¬â¢s fate was sealed as he swore the oaths of the Kingsguard. Ordinarily, Alayna wouldââ¬â¢ve been as ecstatic as the rest of the spectators as they cheered once Jaimeââ¬â¢s white cloak was clasp to his armor and he was presented to the crowd. But Alayna felt no elation her eyes finding Arthur, the man who could never be hers because he too had swore to hold no lands or titles, take no wife, or father any children. It was a lifetime appointment only completed when death came. Sorrowful tears pricked at the corner of her eyes as she wished for a different life. Alayna put the finishing touches on her favor for Arthur. A handkerchief embroidered with a lilac rose; a combination of his houseââ¬â¢s colors and her sigil. A physical symbol her heart belonged to him even if they couldnââ¬â¢t be together. She smirked as she tied off the last stitch, admiring her handy work. For once the sewing lessons her Septa had forced her to sit through paid off, not that Alayna would ever admit it aloud. She had a reputation to uphold. Making her way through the bustling
Thursday, December 26, 2019
Elizabethan Poetry Analysis - 1292 Words
The Female Figure in Elizabethan Drama and Poetry The Elizabethan era was marked by a flourishing of the arts, particularly literature. Many famous poets and writers such as Shakespeare and Marlowe were prevalent in this time and they all sought to be unique from one another. Through this race to be the best, they used common themes while taking a wide variety of approaches towards each subject. Even works done by the same author hold different values in an attempt to stand out among the crowd. For Example, in Elizabethan dramas and poetry, female figures have commonly played the parts of the beloved, the desired, and the dangerous. Throughout my analysis, I will be discussing these different views of women as seen in Shakespeareââ¬â¢sâ⬠¦show more contentâ⬠¦In the sonnet, his mistress is his beloved and he loves her more due to her unique and interesting appearance compared to stereotypical beauty, which he breaks down throughout the poem. Likewise, in the Twelfth Night, Viola is the beloved of Olivia, and Olivia the beloved of Orsino. Although Viola was guised as a man, Olivia still tells her/him ââ¬Å"I love thee so, that, maugre(despite) all thy pride, nor(neither) wit nor reason can my passion hideâ⬠(Shakespeare, Twelfth Night, p. 1222). Oliviaââ¬â¢s confession does not come as a surprise to the reader since according to Ake, ââ¬Å"Olivia does seem, at least initially, to find Cesario/Violas youthful, feminine demeanor intriguing, but their interview reveals the extent to which Olivias desire for Cesario/Viola emerges not from similarity (in speech or conduct), but precisely from the differences s/he embodies and the poetic alternatives s/he offersâ⬠(Ake). Cesario is Oliviaââ¬â¢s beloved and her passion for Cesario (Viola) is one that is due to her being a female although Olivia is unaware of this. She is attracted to Violaââ¬â¢s poetry which differs from Orsinoââ¬â¢s since Viola speaks beyond surface appearances and in stead, directly discusses her personality while Orsinoââ¬â¢s poetry makes her, Olivia, vague and allows it to be interpreted in a variety of manners (Ake). Ake says,Show MoreRelatedCritical Analysis of Shakespeares Sonnet 1301111 Words à |à 5 PagesCritical analysis of Shakespeareââ¬â¢s Sonnet 130 Shakespeareââ¬â¢s Sonnet 130 compares the speakerââ¬â¢s lover to a number of other beautiesââ¬âand never in the loverââ¬â¢s favor. Her eyes are ââ¬Å"nothing like the sun,â⬠her lips are less red than coral; compared to white snow, her breasts are dun-colored, and her hairs are like black wires on her head. In the second quatrain, the speaker says he has seen roses separated by color (ââ¬Å"damaskedâ⬠) into red and white, but he sees no such roses in his mistressââ¬â¢s cheeks; andRead MoreWho ever loved that loved not at first sight ? analysis1629 Words à |à 7 Pagesof the value of her sacred chastity, attempts to hold Leander off for a time. Eventually they are overcome by their feelings, and, though they are both a little unsure of how to proceed, they consummate their love. The poem ends as morning dawns. Analysis Hero and Leander is a poem ââ¬â an epyllion, that is, a short epic poem ââ¬â which Marlowe composed based on work by the sixth-century poet Musaeus. The story, of course, is much older, based on various versions of a Greek myth. The narrative itself isRead MoreWorld Events Influencing Shakespeareà ¨s The Tempest Essay example1277 Words à |à 6 Pagesââ¬Å"Whatââ¬â¢s past is Prologueâ⬠ââ¬â William Shakespeare Shakespeare lived and produced much of his famous works during the time when Queen Elizabeth ruled England and Ireland. This era was known as the Elizabethan Era. The world and its people were quickly evolving. It was the ââ¬Å"golden ageâ⬠of poetry, music and literature. It was in the midst of European exploration that Shakespeare wrote, The Tempest. It would be safe to suggest that many of the worldly events during this time, such as the shipwreck ofRead MoreEssay on Analyzing Poetry2868 Words à |à 12 PagesAnalyzing Poetry It is possible to compare and contrast poetry from different literary periods by selecting a poem from each period and examining its use of structure, style, and imagery to enhance its theme. In the Elizabethan period, Lullaby, by Richard Rowlands; in the Romantic period, Samuel Taylor Coleridges Youth and Age; in the Victorian period, A Childs Laughter, by Algernon Charles Swinburne; and in the Modern period, Jessica Hagedorns Sorcery, the reader will come toRead MoreMetaphysical Poetry of John Donne1441 Words à |à 6 PagesHendricks November 1, 2012 Literary Analysis of John Donne This examination of John Donneââ¬â¢s metaphysical poetry includes analysis of Donneââ¬â¢s use of topic, structure, scansion, style and theme. John Donne is known as one of the best writers of metaphysical poetry, a genre of poetry that is characterized specifically by themes of knowledge, intellect, and having a somewhat unrecognizable meter or rhyme. Metaphysical poetry forsakes pure and genial nature of other Elizabethan poets. Paradox, juxtapositionRead MoreTHE MAIN FEATURES OF THE METAPHYSICAL POETRY ILLUSTRATED BY JOHN DONNE1637 Words à |à 7 Pages THE MAIN FEATURES OF THE METAPHYSICAL POETRY ILLUSTRATED BY JOHN DONNE The term metaphysical poetry is used to describe a certain type of 17th century poetry. Metaphysical poetry is concerned with the whole experience of man. It means that the poetry is about showing knowledge and thoughts from different areas of experience, especially about love, romantic and sensual; about mans relationship with God and about pleasure, learning and art. Read More Analysis of film Shakespeare in Love Essay1158 Words à |à 5 PagesAnalysis of film Shakespeare in Love The film Shakespeare in Love shows that even in the 21st century Elizabethan drama impacts its audience as it did in the 1500s. The film captured England and the important influence of Elizabeth I during the Renaissance period. Even though Queen Elizabeth didnt have a major role in the film, her characteristics were displayed through the main heroine, Lady Viola. Lady Viola and Elizabeth were both courageous, well-educated women of the upperRead MoreAnalysis Of Ezra Pound s 1146 Words à |à 5 PagesEzra Poundââ¬â¢s (1885-1972) Homage to Sextus Propertius has stirred controversies after its first publication in Harriet Monroeââ¬â¢s Poetry magazine in March 1919. The poem is consisted of twelve sections and it was based on Propertius, a great Latin elegiac poet who lived during the first century. Poundââ¬â¢s poem provides a new interpretation of Propertius that differs from his predecessors. Pound finds a voice to critique the corrupted politics of his time. The poem, However, has enraged the ClassicistsRead More An Analysis of Shakespeares Sonnet 73 Essay example1241 Words à |à 5 PagesAn Analysis of Shakespeares Sonnet 73 à à à Sonnet 73 by William Shakespeare is widely read and studied. But what is Shakespeare à trying to say? Though it seems there will not be a simple answer, for a better understanding of Shakespeares Sonnet 73, this essay offers an explication of the sonnet from The Norton Anthology of English Literature: à à à à à à à à à à à à à à That time of year thou mayst in me behold à à à à à à à à à à à à à When yellow leaves, or none, or few, do hang à à à à à à à à à à à à à UponRead MoreThe English Renaissance : The Golden Age1861 Words à |à 8 PagesBritish history being held for the success of literary, cultural and scientific inventions that signaled expanded new ideas and led to achievements. Renaissance ideas in England slowly impacted a lot , making the second half of the 16th century, the ââ¬Å"Elizabethan Eraâ⬠, the highlight of the English Renaissance. The time of Shakespeare was also the time of one of the most memorable monarchs, Elizabeth I. The reign of Queen Elizabeth was a comparison with the English Renaissance partially being held for
Wednesday, December 18, 2019
We Have Sexual Contact With The Natives Essay - 832 Words
ââ¬Å"Did you have sexual contact with the natives?â⬠ââ¬Å"No.â⬠ââ¬Å"Did you share needles or have any open cuts I should be aware of?â⬠ââ¬Å"No . . . â⬠I said. The masked doctor examined the hundreds of boils on my face and body. A week prior, I got into a bus accident in Tanzania. I was delivering a bag full of medical supplies to a rural hospital. A tropical storm hit the night before, making the gravel road slippery. My vehicle lost control and slammed into a palm tree. I hit the front seat hard, and a dental pick pierced through my backpack, slicing my arm. I bled profusely. The next day, I flew back to Washington, D.C. only to discover boils on my body. ââ¬Å"Weââ¬â¢re gonna run some blood tests and update you in two days,â⬠said the doctor as he left my quarantine room. I threw up in a bucket right after. The following hours were the loneliest, most miserable in my life. Born in the UK to a military dad, I lived in a total of 12 cities across 3 continents. I left friends, family, and belongings every two years. With my life in flux, the only constant was my education. Information I learned from school textbooks was applicable wherever I lived. Because of this, I saw the benefit of participating in an academic field like medicine. But here I was, in a quarantine room after volunteering for three months with doctors and nurses. I felt paranoid. What if the dental pick had HIV on it? Am I gonna die? My worries soon transformed into life regrets. SinceShow MoreRelatedWe Have Sexual Contact With The Natives? Essay833 Words à |à 4 Pagesââ¬Å"Did you have sexual contact with the natives?â⬠ââ¬Å"No.â⬠ââ¬Å"Did you share needles or have any open cuts I should be aware of?â⬠ââ¬Å"No . . . â⬠I said. The masked doctor examined the hundreds of boils on my face and body. à à à à à à à à à à à à A week prior, I got into a bus accident in Tanzania. I was delivering a bag full of medical supplies to a rural hospital. A tropical storm hit the night before, making the gravel road slippery. My vehicle lost control and slammed into a palm tree. I hit the front seat hardRead MoreHiv / Aids : A Growing Problem Among American Indians And Alaska1731 Words à |à 7 PagesIndians and Alaska Natives (CDC). Some groups have higher rates of HIV in their communities, hence the rising of the new infections with each sexual or drug use encounter (CDC). Social, economic, and demographic factors including stigma, discrimination, revenue, education, and geographic regions- affect their risk for HIV. Due to American Indians and Alaska Natives small population the affects of HIV are not at all times obvious (CDC). According to the CDC, these two groups have the highest percentageRead MorePositive And Negative Impacts Of The Columbian Exchange1271 Words à |à 6 Pagesan easier way to travel great distances for the natives, but also a new food source for the Americas. The horse becomes a very important factor of life in the new world, they assisted in everything from farming to a more efficient way of transportation. J. R. McNeill states, In the North American great plains, the arrival of the horse revolutionized Native American life, permitting tribes to hunt the buffalo far more effectively. Before the Native Americans were introduced to the horse, they carriedRead MoreNegative Effects Of The Columbian Exchange1498 Words à |à 6 Pagesoutbreaks in both the Old and New world, Europeans started to abduct and force over 12 million Africans to the New world and sold or traded them into slavery in the sixteenth to the nineteenth century, and finally it is estimated that 80-95 percent of the native American population was decimated within the first 100-150 years following 1492. The lasting effects of these negative results left long lasting effects on the world and for the future. During the time of the Columbian exchange there were many goodsRead More Uncertain Reconciliation between Indigenous and Non-Indigenous people of Australia688 Words à |à 3 Pagesintroduced a Land Rights Act which made governments more aware of the issues of Aboriginal Cultural Land. With the aid of this policy Eddie Mabo was able to lead a case that was known as the Native Title. This was one of the most famous cases, the Mabo v Commonwealth, and it was declared in the High Court in 1992. The Native Title provided Aboriginal people with the rights to make claims for land that they claimed to be theirs, through a traditional association. After white settlement, thousands of AboriginalRead MoreThe Yanomami And Gender : The Unique Development Of A Society1549 Words à |à 7 PagesThe Yanomami and Gender Today we live in a globalized world, the world is interlinked on so many social, political, and economic levels that everyoneââ¬â¢s culture has somewhat bled into each otherââ¬â¢s. So it is extremely rare for anthropologist to find tribes like the Yanomami. ââ¬Å"The Yanomami are a tribe of roughly twenty thousand Amazonian Indians living in 200 to 250 villages along the border between Venezuela and Brazil.â⬠(Borofsky, R., Albert, B. 2005). The Yanomami have been studied by anthropologistRead MoreNative Americans And Western History1299 Words à |à 6 PagesNative Americans are the original inhabitants of the West, and have played an important role in Western history and continue to do so in todayââ¬â¢s society. Their role has changed many times over, both good and not so good, and most of the time it was not in their favor. The Indians were descendants of ancient hunters that migrated from Asia to America thousands of years ago, and the differences between the Nati ves and Europeans are monumental. From the Natives lack of individual ownership of land toRead MoreEssay on Canadian National Identity: Native Canadians853 Words à |à 4 Pages Native Canadians play an important role in our national identity, unfortunately, the culture has been slowly dying out for the past century as advancing generations lose the spoken language. Less identify themselves as a true Native for the little knowledge they have of their culture, especially those who live in an urbanized city. One of the greatest contributing factors to this outcome were residential schools, a tragic and critical part of Canadian history. The first government operated residentialRead More Lakot Woman Essay926 Words à |à 4 Pagesone of the hardest trials faced by Mary Crow Dog was not only that of being a Native American but of being a female in a world predominately dominated by Caucasian men. Since the white man came to ââ¬Å"Americaâ⬠he has done nothing but take and take and take. He has lied to the point where one cannot tell where one lie ends and another begins. The United States government signed more than four hundred treaties with Native Americans and managed to violate every single one. The white man systematicallyRead MoreA View Into The Yanomami People1640 Words à |à 7 Pagesinto the Yanomami People Today we live in a globalized world, the world is interlinked on so many social, political, and economic levels that everyoneââ¬â¢s culture has somewhat bled into each otherââ¬â¢s. So it is extremely rare for anthropologist to find tribes like the Yanomami. ââ¬Å"The Yanomami are a tribe of roughly twenty thousand Amazonian Indians living in 200 to 250 villages along the border between Venezuela and Brazil.â⬠(Borofsky, R., Albert, B. 2005). The Yanomami have been studied by anthropologist
Tuesday, December 10, 2019
Lies My Teacher Told Me free essay sample
A fascinating and informative book, Lies My Teacher Told Me by James W. Loewen, takes a look at twelve popular American history textbooks and concludes that the information is false, viewed primarily from an European perspective, and made up to credit national myths. In addition, James Loewen presents many key historical events that he feels are missing from many of these textbooks and should be included. Published in 1995 by The New Press, Lies My Teacher Told Me rapidly became a multi-award winning novel. In roughly 400 pages, Loewen unfolds an engrossing critique that is bound to hook any reader interested in history or education. In the novel, James Loewen provides his readers an in-depth understanding of how the information in U. S. history textbooks is often incomplete and/or even misleading. Loewen makes a compelling argument that what is taught today in history classes consists of only the succession of one president to the next and a few ââ¬Å"importantâ⬠wars. We will write a custom essay sample on Lies My Teacher Told Me or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page He argues that most textbooks portray many events, situations, and people less unpleasant than the reality. Moreover, Americans are always shown to be the hero and they are never in the wrong ââ¬â bad things just happen to them. Loewen focuses on several major events/people in our history that are incorrectly portrayed: Columbus, Thanksgiving, slavery, Lincoln, the Vietnam War, etcetera. None of these textbooks mention that Thomas Jefferson owned slaves and also raped some of his slave women or that Japanese Americans were confined in concentration camps during World War II. James Loewen blames textbook editors, writers, publishers, and even teachers for students not knowing enough accurate information, too much inaccurate information, and not caring about any information. Along with his critique, he also suggests some historical events that might add to existing themes and also some themes that might serve as replacements to inaccurate information. Lies My Teacher Told Me was a work of simple brilliance. Although it was not the fastest read in the world, I found that it was definitely an important read; it was definitely an eye-opener. Countless times while reading this novel, I realized how much U. S. history books cover up parts of a complete picture of historical events that founded this very nation. James Loewen acknowledges the information inside of these history textbooks, corrects most of the wrong information presented in these textbooks, and advises how we might want to move in a direction where history is more likely to give students a more realistic picture of who Americans are and who Americans were. As a student, reading this book really made me angry at all the textbook publishers, editors, writers, and even history teachers who are all giving countless number of children across America an education that is made up of lies. I have to admit this book has had a profound impact on me. It really made me question the authority and power we give our education system in America ââ¬â obviously it is not always accurate and we should not always trust the information that is blatantly handed to us. I hope Loewenââ¬â¢s criticism will reach out to all educators in the American history department and will have a real impact on changing the standardized U. S. textbooks. The writing in Lies My Teacher Told Me was fairly decent and Loewen does deserve much credit for taking on such a difficult project and, for the most part, succeeding in creating an informative novel and relaying his message to his readers/ audience. You can easily tell that he clearly knows what he is talking about, whether he is talking about the mistreatment of the American Indians by European settlers or how Helen Keller was a radical socialist and also a member of the Socialist Party. Loewen is a very engaging author, who understands how to emphasize his points effectively and captivate his readers. His writing is simple and straightforward and extremely descriptive. Below is one of my favorite passages from the novel, and goes to show you that he, Prof. Loewen, is one amazing writer: ââ¬Å"Racism became dominant in the United States between 1890 and 1920 when African Americans were again put back into second-class citizenship In the 1880s and 1890s minstrel shows featuring bumbling, mislocuting whites in blackface grew wildly popular from New England to California. By presenting heavily caricatured images of African Americans who were happy on the plantation and lost and incompetent off it, these shows demeaned black ability (Loewen 160-164). James Loewen proves himself to be a superb writer, showing off both his skill and talent as a novelist, but also being very intelligent in the numerous topics he writes about. However, I felt that there were a few areas where he could have worked a littler harder on to make the book a much stronger read. In many sections of the novel, Loewen seemed to get a little crazy with punctuation, such as exclamation points ââ¬â literally every sentence ended in one for a straight page. It was very distracting as a reader; it was the equivalent of writing in all caps, which loses the readers attention and makes the point he is trying to convey seem silly and irrelevant. Another problem I had with a few sections of the novel was that the writing did not always flow. Many sentences in a paragraph were awkward and disrupted the point Loewen was trying to make. In addition, the chapters did not really fit with one another; he could have rearranged them to fit more accordingly. There were some major ups and some major downs in this novel. Starting off on a high note, I enjoyed how James Loewen did not just give exciting and intriguing content, but also helped the reader foster a questioning mind. Countless times I was struck by how little I actually knew about American history, and that I should never take a piece of knowledge for granted. Another strength for me was the way Loewen presented the content with a lot of wit and sarcasm, which made for a very enjoyable and great read. Once I was hooked, I could not put the book down. Furthermore, I was really surprised at what a good analysis he provided on all the major subjects he touched on. I liked how he did not promote only one point of view, as many textbooks do, but insisted that history should be left for interpretation by students. The major weakness, in my opinion, was probably when Loewen offered the reader his biased opinions. Although James Loewen attacked U. S. history textbooks for being too biased and opinionated, Loewen did not refrain from giving his own. I believe that no history textbook is going to be written without some slant or bias, so I did not completely understand why Loewen would even bring it up, while he was offering his own political opinions (i.e slamming down the Reagan/Bush administrations). This is a novel that I would recommend to a selected audience. This books prime focus would appeal to readers who are interested in history, specifically American history. This well-written novel will also appeal to people who are interested in how the education system works in the United States. Lies My Teacher Told Me gives you an incredible insight on the reality of American history and how it is taught. Although it has its share of flaws, you will not be greatly disappointed. As a whole, I would give this novel a 4 out of 5 stars.
Monday, December 2, 2019
Transpiration Lab Essays (1142 words) - Plant Physiology
Transpiration Lab Introduction Water is essential to plants in many ways. It first provides the major substance for living, to keep cells from shriveling up and dying. The second major function is to keep the plants rigidity. As plant cells become turgid, full of water, the cells expand, filling the extent of their cell walls, which are kept taught with turgor pressure. If the cells lose water, two problems occur. First, the cells dehydrate, causing the organism to die. Second, turgor pressure is lost as cells become flaccid, limp and unfilled, causing a loss of support for the plants structure which makes it appear wilted. As aquatic plants evolved into large complex land plants, an adaptation occurred in the center of plants to allow full growth without the problem of water loss. A system of vascular bundles extending from the tips of the furthest leaves to the deepest roots of each plant developed, carrying water in xylem sap and sugar in phloem. While phloem can transport sugar in any direction within the plant, xylem can only move water up, from root to leaf. Once in the leaf, the water evaporates through stomata?tiny gaps in the lower epidermis of each leaf, which are regulated by guard cells?a process called transpiration The movement of water into and out of the xylem involves water pressure factors in different sections of the plant. As water slips into the roots through osmosis, a positive water pressure gently pushes the water into the plants roots and supplies a jumpstart for the water's journey up the vascular bundle. However, it is not this pressure that supplies a great force towards the upward movement of water; it is the evaporation of water from the stomata that pulls water upward and out. When the stomata are open to take in carbon dioxide for carbohydrate production, water begins to evaporate and seep out of the tiny holes in each leaf. With a constant pull of water outward, other water molecules are pulled up to replace it. The pull is provided by the cohesive properties of water molecules as each leaving molecule pulls on another molecule which is hydrogen bonded to it. The process continues as a series of movements until all the water molecules in the xylem sap are being pulled upward by their hydrogen bonds to the water molecules ahead of them. Thus the slight negative pressure occurs. Different environmental factors can have impacts on the intensity of water evaporation, and thus the rate of plant transpiration. Just like water in an open environment, a dry environment would increase the evaporation of water, and the rate of transpiration. A hot or very bright environment would do the likewise. Conversely, moist, dark, or cool environments would allow for a slower rate of transpiration because water would not be as readily evaporative. When testing the rate of transpiration for any given plant, I hypothesize that plants exposed to copious quantities of light will transpire more rapidly than those in a regular environment. Methods We selected a bean plant on which to test varied environmental factors on transpiration. The different environments included excessive sunlight?a floodlight one meter from the plant, wind/dry air?a stationary fan approximately one meter away from the plant on low speed, humid/rainy climate?leaves misted, then covered with a clear plastic bag (open at the bottom for air exchange). Normal room conditions were also tested for the control. One bean plant was used for each simulated environment. To set up the experiment, four pieces of Tygon clear plastic tubing were cut to sixteen inches. Inside each was placed the tip of a 0.1-mL pipette. Taking four ring stands, one paired with each tube/pipette set, each end of the tubing was clamped, so that the tubing made a ?U? shape. Next the tubing was filled with water so that no air bubbles were present and that water completely filled the tubing and pipette. The four bean plants were each placed into the open end of their respective tubing, then sealed with petroleum jelly around the sides (to prevent accidental water evaporation). The plants were allowed to sit for ten minutes before the initial reading was made, to allow for equilibration. After recording levels of water for all
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