Visual cryptography

Visual cryptography Introduction One of the popular solutions for image encryption is visual cryptography. Secret sharing concepts are used to encrypt a secret image into the shares (customized versions of the original image) which can be transmitted over an undeveloped communication channel and by overlapping shares, the secret message is obtained Visual cryptographic solutions are based on binary or binaries inputs. Due to this, natural images must be first transformed into halftone (this is a technique which uses different density of dots to display the image) images to simulate the original gray or colour levels in the target binary image To create the shares, the halftone version of the input image is used instead of the original image. The decrypted image is made by stacking the shares together. Because binary data can be displayed in an apparent form when printed on transparencies or viewed on the screen and overlapping shares that contain apparently random information can expose the secret image. However, the decrypted image is darker, contains a number of visual damages due to the algorithm that is used for the process and the resolution of secret image is increased by most of visual cryptography solutions (Lukac at el,2005) and(Lukac 2006). 1.1 Objectives The base of protected communication among users using insecure channel is known as cryptography. In order for cryptographic security to take place, an algorithm is involved for the practice of encrypting and decrypting messages In its basic form, one image is split into two separate images called shares. When the shares are stacked on top of each other, the unique image is retrieved A general n out of n visual cryptography scheme involves n participants in which a secret image is split into n random looking shares and all n shares are required to recover the original image. 1.2 Aims The important idea behind Visual Cryptography is to encrypt information in the form of images in a secure and flawless way The information must be encrypted before it is sent, so that it cannot be illegally read or modified in the middle of transmission. Suppose 4 persons have deposited their money in a bank account. These persons obviously do not trust each other. In particular, they do not want a single member of themselves to withdraw the money. However, they assume that withdrawing money by two members of the group is not considered a conspiracy; rather it is considered to have received authorizations Therefore, they decided to set the bank code (with a trusted computer) into 4 partitions so that any two or more partitions can be used to reconstruct the code. Since the persons representatives will not have a computer with them to decode the bank code when they come to withdraw the money, they want to be able to decode visually: each thief gets a transparency The transparency should yield no information about the bank code (even implicitly). However, by taking any two transparencies, stacking them together and aligning them, the secret number should pop out. How can this be done? (Naor and Shamir, 1994) proposed a solution and introduced a simple but perfectly secure way that allows secret sharing without any cryptographic computation, which they termed as Visual Cryptography Scheme. The simplest Visual Cryptography Scheme is given by the following setup. A secret image consists of a collection of black and white pixels where each pixel is treated independently To encode the secret, the original image is split into n customized versions (referred as shares). To decode the image, a subset S of those n shares is picked and display each of them onto a transparency In this project, a new visual cryptography scheme is intended for shadow images. The proposed scheme will be flexible, easily implemented, and more secure for shadow images. Moreover, shadow image structure is augmented to reduce the chances for an attacker to guess the secret. Literature Survey 2.1 introduction Visual Cryptography was introduced by (Naor and Shamir, 1994) at Eurocrypt, an annual conference sponsored by the International Association for Cryptographical Research (IACA) to encourage discussions and seminars among cryptologists all over the world In that, the description is about a new cryptographic scheme that encodes a black and white image into n shares. Decoding is done with the human visual system when the n shares are placed on transparencies and stacked on top of each other. They included several schemes to implement a visual cryptography system in their presentation Since that time, the paradigm of visual cryptography has attracted wide attention all over the world. Several papers and projects have been presented to extend visual cryptography. Schemes have been invented for a general k out of n sharing scheme and to cover gray scale and colour images as well(Jim Cai and Zhou,2000) Even today, research continues in the field of visual cryptography and papers regarding contrast, extended schemes are being published regularly This research addresses the few questions concerning visual cryptography, and will attempt to answer these questions in the context of the research by using experimental approach into the problem of visual cryptography, these questions are: what is cryptography? What set of features should be used in visual cryptography? How to reduce chances for attackers to get the secret of shadow images? 2.2 Theory This section will attempt to explain the basic theory behind visual cryptography. Consider a black and white image (not gray scale). It is made up of black pixels and white pixels grouped such that when viewed with the human eye, the picture (or word, symbol etc.) can be seen. To encrypt this image, each pixel from the original image is taken and converted into sub pixels. For sake of this discussion and for simplicity, let us assume that each pixel will be converted into two sub pixels and there will be two shares If a pixel is white, then one of two combinations of sub pixels will be randomly chosen to represent the pixel on each of the shares. When the shares are stacked and properly lined up, the sub pixels for the white pixel produce the result In both sets of sub pixels for the white pixel, it can be seen the result is one black sub pixel and one white sub pixel next to each other. When viewed with the human visual system, the result appears to be gray (combined effect of white and black next to each other) On the other hand, if a pixel is black, then one of the two combinations of sub pixels will be randomly chosen to represent the pixel in each of the shares (same idea as the white pixel). However with black pixels gives two sub pixels next to each other. To the human eye, this appears as a share by itself gives no visible information from the original image because the sub pixels are evenly distributed on each share (one black sub pixel and one white sub pixel for each pixel in the original image). These combinations (black/white and white/black) occur with probability 1/ 2 providing a share with randomized pixels and thus not revealing any hint of the original image. When the shares are stacked, the white pixels are seen as gray, while the black areas remain black (Naor at el, 1994 ,Lee at el,2003 and Voyatzis,1996) (Naor and Shamir, 1995) thought about the problem of encrypting material such as: printed text, handwritten notes, pictures, etc in an absolutely secure way which can be interpreted directly by the human visual system Furthermore, they have explained that the basic model includes a printed page of cipertext (which can be sent by mail of faxed) and a printed transparency. The system they developed can be used by anyone who lacks knowledge of cryptography and without performing any cryptographic commutations. Moreover, they noted that the best way to visualize the visual cryptographic scheme is to consider a concrete example In cryptography, the process of transforming data (referred to as plaintext) where the process uses an algorithm (called cipher) is called encryption. The encrypting process make the information unreadable to anyone except those possessing special knowledge, usually referred to as a key. The encrypting process results encrypted data (in cryptography, referred to as cipher text). To read encrypted data, the encrypted data should be made readable. So the reverse process is called decryption. In real world, the software for encryption can typically also perform decryption to make the encrypted information readable again (ElGamal,1985 and Rivest,1978) Encryption has long been used by militaries and governments to facilitate secret communication. Encryption is now used in protecting information within many kinds of civilian systems, such as computers, storage devices (e.g. USB flash drives), networks (e.g. the Internet, e-commerce), mobile telephones, wireless microphones, wireless intercom systems, Bluetooth devices and bank automatic teller machines. Encryption is also used in digital rights management to prevent unauthorized use or reproduction of copyrighted material and in software also to protect against reverse engineering (Encryption) Encryption, by itself, can protect the confidentiality of messages, but other techniques are still needed to protect the integrity and authenticity of a message; for example, verification of a message authentication codes (MAC) or a digital signature. Standards and cryptographic software and hardware to perform encryption are widely available, but successfully using encryption to ensure security may be a challenging problem. A single slip-up in system design or execution can allow successful attacks. Sometimes an adversary can obtain unencrypted information without directly undoing the encryption. (Maurer,1994 and Diffie,1976) Moreover, The optimality of VC is determined mostly by its pixel expansion and the relative contrast and, the relative contrast needs to be as large as possible to ensure visibility (Alvarez at el,2005). In the scope of this research, the works related to contrast optimization will be explored. Works related to deriving lower bound of pixel expansion m can be found in (Naor and Shamir, 1995), (Rivest at el,1984) etc. The research on contrast optimization was motivated by the problem of extra graying erect introduced to decoded image. This occurs because the decoded image is not an exact reproduction of the original image, but an expansion of the original, with extra black pixels. Research methods -Doing a thorough investigation into basic visual cryptography -Careful study of algorithms used in visual cryptography -Checking out a suitable development environment and a suitable frame work that can ease the image processing tasks -investigating shadow image structure for visual cryptographic practices such as pixel expansion and the relative contrast -This project emphasizes, intends and evaluates a computer-based system using appropriate processes and tools, as follows Front End :Java Back End :Microsoft SQL Server OS : Windows XP and Windows vista IDE : net beans 6.7 The net bean IDE is used for following features: In this project, net beans Integrated Development Environment (IDE) is used because its tools, debugging and performance monitoring. Net bean IDE for developing applications saves the time by managing windows, settings, and data. In addition, an IDE can store repetitive tasks through macros and abbreviations. Drag-and-drop features make creating graphical user interface (GUI) components or accessing databases easy and highlighted code and debugging features alert to errors in the code The application is developed by java because of following features Java is a graphical user interface programming language Java supports to platform independent mechanism Java is a general purpose and object oriented programming language The most striking features of the language are that it is platform neural language Java program is under the control of JVM; the JVM can contain the program and prevent it from generating side effects outside the system. Thus safety is included in Java language. Java is mainly adopted for two reasons Security Portability These two features are available in java because of the byte code. Byte code is a highly optimized set of instructions to be executed by the Java run time system called JVM. The features of Java which are adopted for the network system explore are Multithreading Socket programming Swing Multithreading Users perceive that their world is full of multiple events all happenings at once and wants their computers to do the same. Unfortunately, writing programs that deal with many things at once can be much more difficult than writing conventional single threaded programs in C or C++. Thread safe in multithreading means that a given library functions is implemented concurrent threads of execution Swing Swing refers to the new library of GUI controls (buttons, sliders, checkboxes etc). Swing is a rapid GUI development tool that is part of the standard Java development kit. Swing is a set of classes that provides more powerful and flexible components. Swing components are not implemented by platform specific code. Instead they are written in Java and therefore are platform independent (java doc).

Basic Principles Of Democracy :: essays research papers

The United States of America has five basic principles which ensure the ability of the country. The basic foundations: fundamental worth, equality of all persons, majority rule minority rights, necessity of compromise, and ividual freedom. This paper reviews three of the five principles: majority rule and minority rights, individual freedom, and necessity of compromise. Two of these cases of individual freedom plus majority rule and minority rights the United States has failed to uphold. The third case on individual freedom is an undecided case at this point. The United States must not ignore these ations’ importance making judicial decision or the stability of the country is at risk.   Ã‚  Ã‚  Ã‚  Ã‚  Majority rule and minority rights is a basic foundation of democracy. A general concept of this foundation is that the popular vote will be the deciding party in most cases. Along with this concept the minority of the people will maintain certain basic human rights that will not be compromised by the popular vote. A challenge to this principle occurred when Asheville City district zoning was voted on many years ago, and unfortunately was passed. The rules and restrictions that are accompanied by zoning are phenomenal. In many cases the taxes rise depending on how property is zoned. For example, if property is zoned as commercial property the taxes are considerably higher than if property was in a residential area. Consequently the minority here is being punished. More permits must be acquired and plans must be approved before anything can be done to ones own land. Zoning was voted in by the majority, however the minority’s rights were not completely maintained. People need to maintain certain basic rights, and these rights pertain to what they may do to their property. Justification of how the government failed to honor this basic foundation.   Ã‚  Ã‚  Ã‚  Ã‚  Individual freedom is by far one of the most important foundations to a democracy’s survival. Individual freedom is difficult to define, though a general meaning is illustrated by a quote from Oliver Wendell Holmes, â€Å"The right to swing my fist ends where another man’s nose begins.† Enforcing people to wear their seat belt against their will is an example of how America has failed to secure the one of most important foundation of democracy. People should have the right to choose whether or not they wear their seat belt. The American government and the North Carolina government specifically passed a law which makes all passengers in the front seat, no matter what age, wear their safety belts.

Ethical Leadership: What It Is and How We Use It in Schools Essay

In the context of the present century, when the entire course of life is changing much faster than ever, rapidly increasing body of knowledge in every walk of life has made tinier issues look magnified. Today, what is considered as a most important requisite of a plan or strategy may not have even been noticed in the past days. As such, education is one domain where challenges of the present time of diversity are felt more than in any other area. Thus educational management and leadership is one area that catches a good deal of scholarly attention. When it comes to leadership, ethical leadership takes the lead because today leadership in schools is something highly challenging due to the diverse environment of cultural diversity and so on. The present paper carefully examines the phenomenon of ethical leadership, and then makes empirical analysis as how it can be employed usefully in schools for better outcomes. For this purpose, the present paper takes into account extensive research with regard to ethical leadership in schools. Today, the need for exploring the phenomenon of ethical leadership in an academic environment has become a necessity especially for those working at such positions: principals and teachers. The present writer is a teacher and considers that the study of ethical leadership is highly important for professional growth and substantial results with regard to training of pupils being taught at any level of schools. This study, henceforth, is useful not only for professional teachers, but it also encompasses grounds for other related people in the field. It will also be worthwhile for the common reader. Problem Statement On the face value, the phenomenon of ethical leadership remains a complex area which is in need of exploration for its better understanding and implication in practical ways in a school or college, etc. For example, what is known from the observable behaviors of leaders like principals and teachers may not be sufficient to mark any solid statement with regard to the definition and implication of ethical leadership. However, this is another grey area to point out that observable behaviors have not been fully investigated in this regard. Different practices of leadership, say across the educational setting of the United States of America, exist and need to be interpreted for a comprehensive exploration of ethics and the use of ethics to lead. As such it is important to address both these areas. From the explicit definition of explanation of what ethical leadership is to how it can be best practiced to positively influence an academic environment is at the core of the problem. A number of researchers have already delved into this area; however, more digging is needed. The present paper looks at the issues from both the sides: from its explanation to its implementation in best possible conditions. Literature Review Available literature on ethical leadership yields a good deal of information. The Concise Encyclopedia of Philosophy (Craig, p. 256, 2000) states the following explanation for ethics: â€Å"What is ethics? First, the systems of value and custom instantiated in the lives of particular groups of human beings are described as the ethics of these groups†. This definition tells us that ethical leadership is about practices that leaders exercise with regard to pupils studying in their institutions. It means not merely controlling the physical actions of the learners but influencing their values and customs in a positive way. To Campbell (2000), â€Å"Ethics are standards by which one should act based on values. Values are core beliefs such as duty, honor, and integrity that motivate attitudes and actions† (p. 23). As such, ethical leadership is something that aims at addressing the issues of attitudes and strikes morally the attitudes of workers and students in such a manner which positively provokes high level of motivation. According to Covrig, D. M. 2000), ethical leadership â€Å"is the practice of effective ethical decision making and leadership which responds to, preserves and clarifies the organization’s core values. Conflict and conflict resolution suggest a healthy moral administrative process† (p. 40). If we look at this definition, we will notice that preserving and clarifying an organization’s core values is one important factor that keep s the ethical leadership going. As such one simply observable point here is that an organization, say a school, will only adhere to its core values only when these values are well defined and logged. If the values are not well defined, no effort will result in preserving any value because, according to the present writer, there will not be any values worth mentioning. This will, in turn, give no positive feedback for the practice of ethical leadership. Sergiovanni (1992) defines ethics in the following manner: When purpose, social contract, and local school autonomy become the basis of schooling, two important things happen. The school is transformed from an organisation to a covenantal community, and the basis of authority changes from an emphasis on bureaucratic and psychological authority to moral authority (p. 102). Foster (1986) pointed out the serious implication and significance of ethics in educational management as he penned that, â€Å"Each administrative decision carries with it a restructuring of human life: that is why administration at its heart is the resolution of moral dilemmas† (p. 33). This definition again informs us of the importance of dealing with values and moral code of students instead of controlling them outwardly so that true basis of character can be fostered. The ethical leadership also addresses the role played by faculty and teachers. This is a switch-over from traditional views about leadership because they are simply top-down. They consider influence in terms of a mechanical process. Hashem (1997) observes that â€Å"The conventional leadership concepts and practices which rely on top-down philosophy, decisiveness, unemotional, and total control have been challenged by the transformational concept and more empowering practices† (p. 94). When it comes to ethical leadership, ‘what is to be achieved? ’ is the question often asked by the critical eyes. The purpose of ethical leadership is to seed in students the confidence to build or construct knowledge genuinely by addressing their natural demands. Hence ethical leadership is constructivist in approach. According to Henson (2004) by this approach, students construct knowledge through the process in which an interaction between their perception about their knowledge and new knowledge and ideas and experiences that come to their way of learning. This way the students practice highest possible model of ethical learning which is possible only if leaders practice ethical code to train their students. Initial research worth-noticing in this area links as back to the past as the 1980s. Forty empirically conducted studies were reviewed by Reid et al. 2004). They investigated the impact of school heads on different aspects of students’ functioning and teacher’s activities. With regard to the leadership impact on students, they found out positive attitudes of students to school, better mathematical and reading skills, and absenteeism + vandalism were reduced. With regard to the impact of school leaders on teachers, Reid at el. found out that teachers’ satisfaction for job increased; they used innovative techniques in classroom. Additionally, seven studies were conducted by Majestic et al. 2004). These studies also affirm that leadership by principals in schools positively impacted students’ basic learning skills and teachers’ attitude toward job satisfaction and employment of innovation by them in classroom settings. However, the researchers also came up with four additional types of impacts. Andrews et al. (2002) also undertook a study in which they analyzed scores gained by students on standardized tests to examine the influence of school leaders. Teachers rated their principals on a band of strong, average, and weak leaders. The findings presented high correlations between what was achieved and how strong ethical leadership of these leaders was in both mathematical and reading skills. Four major areas were listed in this study, which were directly or indirectly influential for the strength of ethical leadership. These were: (i) mobilization of human and material capital by principals to meet school’s targets; (ii) effective communication with regard to negotiating the set-goals; (iii) their active involvement in school’s teaching practices; and (iv) the time span that these principals spent to make their presence known at school. These four areas are very influential if the leaders are at the top of the grid, that is, if they are trying their level best to perform better in these four areas. As far as loyalty of teachers with regard to their teaching practices and leadership influence down to students, the principals who had the ability to address the moral issues of both the faculty and students were successful in attaining higher level of loyalty from their teachers (Spillane, 2004). As such, a number of school administrations have come to realize the importance of ethical leadership as being the powerful tool that can yield higher results in students not only with regard to their learning but also to the higher order thinking and moral strength of these students as prospective individual citizens. Now the focus should be how effectively these ethical leaders affect the course of learning of their students in connection with the above as well as in the present context of changing cultures, cultural assimilations, self-concept in the fast-paced world, sense of community service, and so forth. This should be our future schools (Hargreaves 2004 8-13). In this very regard, Hart (2004) points out to the importance of understanding and addressing the inside-school culture and its impact on the knowledge-construction and ethical character of the learners. According to him, future research should focus on the elements as to what extent the culture of a school helps train students ethical healthy and how much contribution can be made on the side of the principals and teachers (pp. 117-28). With this all review of literature review, what can be noticed is that ethical leadership is not a simple phenomenon which addresses only one or two areas of school leadership and the training of the learners in a school. Substantially, ethical leadership is about building better moral values for character building and higher order thinking and learning. The process of ethical leadership is not simply top-down or bottom-up (which in contrast to traditional views of leadership); in fact, it is a combination of a number of processes taking place at a number of places in an organization like a school. These processes are present anywhere in the faculty, administrative staff, and students themselves. Thus, ethical leadership is the outcome of efforts put by all the major players in a school context. There is no doubt that such an approach to understanding ethical leadership and its implementation is the need of the present as well as future time so that higher order thinking and learning can be obtained making the students ethically strong.

Show, Dont Ask

Show, Dont Ask Dont ask an editor what you can write for him. Writers arent just about putting words together. They are about bringing fresh material to the table. Writers are a dime a dozen. New ideas are a dime a dozen. Writers who can write and produce fresh ideas hit the sweet spot. Dont ask questions like: 1) What can I write for you? 2) Is this the sort of thing you publish? 3) What are your guidelines? 4) Are you accepting submissions? Were talking ANY sort of writing whether you pitch magazines, apply for copywriting gigs, write nonfiction, or create novels. Your job as a writer is to make an editors work easy, not add to their pile. Come to them with solutions, not more work, and yes, answering inquisitive emails is work when you multiply it times a hundred each and every day. At the risk of being repetitious, the golden rule for any writer attempting to earn money is this: Dont make work for an editor (or agent or publisher). Approach the editor/agent/publisher with a proposal that makes them eager. . . makes them feel like you are more than worth their time. Make a proposal strong. State what you can do for the other party and demonstrate how you can do it. Of course, a pitch for a freelance story is different from one for a novel, and nonfiction requires the book to be outlined with sample chapters while fiction must be polished to the hilt. But the recipient must open this package and marvel at how print-close it is. But the goal of any proposal/pitch/query is to show the person on the other end that: 1) You know how to write, 2) You have a fresh idea, 3) Your work fits THEIR goals of reaching readers, and 4) You are capable of following through. You might be a fantastic writer, but if you cannot pitch it properly and show how much value you can add, nobody will ever learn how great you are. And to ask someone to help you figure it out, not appreciating how full their plate already is, is like putting in your query, Youre not interested in buying my work, are you? Trust me. The answer will always be no.

Finance Report for Huffman Trucking

Finance Report for Huffman Trucking Finance Report for Huffman TruckingBy: Jaime SmithFIN/486Mary OrcuttJuly 22, 2013Huffman Trucking is like any other company. They are looking to grow and develop for the convenience of their customers. Huffman Trucking has already purchased more building to expand their business. The company is steadily growing and looking to expand more in the future. The company needs to know if this is the right move for the company as a whole and if they are financially stable enough to withstand another big purchase. The current balance sheets and statement of income will show the numbers to make the decision.Huffman Trucking Balance Sheet2006 2005(In Thousands)Current AssetsCash and Cash Equivalents51,93338,893Accounts Receivable56,29257,441Prepaid Expenses and Supplies3,4433,343Total Current Assets111,72899,677Carrier Operating Property73,02470,957Less: Allowance for Depreciation(57,536)(55,477)Net Carrier Operating Property15,48815,480Assets of Discontinued Operations16,19218,891Goodwill (net )57,76753,977Other Assets26,61324,194Total Assets227,788212,219Liabilities and Shareholders' EquityCurrent LiabilitiesAccounts Payable47,12439,936Salaries and Wages29,75327,048Current Portion of Long-Term Debt2,2042,514Freight and Casualty Claims Payable9,7468,941Total Current Liabilities88,82778,439Long-Term LiabilitiesAccrued Pension and Post-Retirement Health Care58,36252,721Long-Term Debt13,43115,318Total Long-Term Liabilities71,79368,039Shareholders' EquityCommon Stock3.8823.882Treasury Shares(1.952)(1.952)Retained Earnings67,16665,739Total Shareholders' Equity67,16865,741Total Liabilities and Shareholders' Equity227,788212,219Huffman Trucking Income Statement2006 2005Revenue879,944807,288Salaries Wages and Benefits353,739330,597Fuel Expense217,363192,357Operating Supplies and Expenses152,318136,319Purchased Transportation89,95782,529Operating Taxes and Licenses18,61317,989Insurance and Claims13,52613,006Provision for Depreciation2,7262,738Total Operating Expenses848,242775,535 Operating Income...English: Liabilities of the United States as a fra...

Anxiety of a Preoperative Patient Essay Example | Topics and Well Written Essays - 1500 words

Anxiety of a Preoperative Patient - Essay Example Extensive surgery or surgery with uncertain outcomes also generates more anxiety than any surgery with a predictable course of events. Ambiguity about the outcome and unpredictability about the course, although depend on the type of the surgery and the indication for which it is done. Therefore the nursing staff that is usually in contact with such patients in the immediate preoperative period in the preoperative area has a chance to intervene provided they can assess these patients in a systematic manner for the experienced perioperative stress leading to elevated anxiety scores of these patients. Perioperative nurses are specially trained to do so, and they must find out time to intervene in these patients even in the preoperative area to deal with these patients' emotional distress. If the positive outcome of the care is the goal of care delivery, these interventions can change the emotional status of these patients in such a manner that the relationship between preoperative psych ological status and postoperative recovery of these patients is positively influenced (Stirling, 2006). The most common nursing diagnoses that require intervention from the nurses in this period are anxiety that may be partly related to knowledge deficit, but also partly contributed by the context and the environment. Therefore, the knowledge about the surgical procedure and the patient assessment findings can be combined to make an appropriate plan of care in such situations. It is to be remembered that every patient have their own perspectives of anxiety, and hence assessment and consequent plan of care should be individualized based on specific patient needs. A patient who needs surgery and is waiting for the in preoperative area may be surrounded by a sense of impending doom for the imminent surgery, and a nursing diagnosis of preoperative anxiety needs nursing intervention in that period only. Many of the incidents of anxiety result from patient knowledge deficits related to perioperative routine, surgical interventions, or outcome expectations (Stirling, 2006). Contextual assessment process would examine and assess the patient's knowledge about the surgery. Thus, the assessment must include the status and quality of communication the patient has already received, the patient's possible language barrier, assessment of sufficiency of the patient's mental capacity, extent of information received by the patient regarding the surgical procedure and why it is needed. Since most of the anxiety in this phase id related to the ignorance about the details of the surgical intervention and outcome expectations, the patient's level knowledge regarding those must be assessed in simple questions, so the nurse can design a customized intervention strategy and create the baseline communication link for future interventions before the surgery following this contextual assessment. This assessment should ultimately be able to determine the patient's learning needs and based on these needs, to design an intervention to fulfill the patient's knowledge deficits a ppropriate to the etiology of it (Mitchell, 2000). The environment plays a significant role in perioperative nursing, and the operating area environment has significant impact on all such patients. The perioperative nurse also is a part of the environment, and she can indeed catalyze a positive environment that can influence the patient's anxiety. While assessing anxiety,

Inccident Essay Example | Topics and Well Written Essays - 500 words

Inccident - Essay Example My mind had drifted off to recall the conversation at the kitchen table in the morning where I heard momma telling my dad of the intended visit of our grand parents for the summer. Having my grand parents for holidays made my days shine. Grand pa with his erect frame and ruddy sun tanned skin from countless hours in the outdoors brought me memories of great cowboys. Grand ma always reminded of softness with her twinkling blue eyes and beautiful soft skin. Her voice was so gentle and soothing that I loved to fall a sleep in her lap, listening to the stories and songs she read or sang to me at bedtime. I came out of the reverie of my grandma’s soft cocoon of love when I heard Tim, our implicitly appointed group leader chanted in a high pitch tone â€Å" Here comes a Wadley Sack..he he he he† and I looked up to see the woman of an extra bulky frame walking pass the lot. Tim was right in one sense in that she was hardly walking but waddling along with a difficult gait. She looked in our direction as the chanting got more boisterous with the rest of the boys, Sean, Steave, Mat and Harry joining in the ridiculing of the plus sized lady. I watched her, expecting to see anger and distaste in her expressions but was surprised at the kind and conciliatory look in her eyes. â€Å" Wow†¦ she must be eating like a giant!† said Tim, and everyone laughed aloud. I looked at her once again and thought that though she was rather big, she looked kind and pleasant with her redeeming smile. In the silence that followed, my â€Å"tag & hoop† buddies turned questioning ly at me. I have not uttered a single word up to now, nor had I joined in the laughter, which rankled the humid summer air. â€Å"Alan? You don’t think she looks like a big sack of potatoes?† Questioned Tim and I waited as if the cat got my tongue. â€Å"Oooohh†¦ Alan likes her! He doesn’t think she looks that bad!† Exclaimed Tim, the gang master in mock exaggeration and the others