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what is the relationship between percent transmittance and the color of the solutions what is the relationship between percent transmittance and the color of the solutions what is the relationship between percent transmittance and the color of the solutions Solution A) The percent transmittance is defined as the amount of light that passes through a sample. The percent transmittance and absorbance are related by the following equation: Absorbance = -log (percent transmittance/100). Higher absorbance is directly proportional to lower transmittance. A measure of the extent to which a substance transmits light or other electromagnetic radiation is known as absorbance. ( i.e. the colour of solution - a substance show colour when it transit light and the substance which do not transmit any light they appear black. ) B) The basic relationship is between absorbance and concentration A = ebc ... where A = absorbance, e = molar absorptivity, b = path length, c = concentration in moles per liter Transmittance (T) = percent T / 100 A = log (1/T) or A = 2 - log(%T) 10^A = 1/T T = 10^-A %T = 100(10^-A) .

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2.5.2 Absorption In the last laboratory you noticed that thermal or electrical excitation of atoms caused electrons to be promoted to higher levels of lying energy. The subsequent relaxation of the excited electrons to their ground energy levels was followed by photon emissions in the visible electromagnetic spectrum field. The distinctive colors emitted during this relaxation phase can in some cases be used to classify the individual responsible for the spectrum of emissions. You will be turning this phenomenon around for the next two test times by using the absorption spectrum of a transition metal ion in aqueous solution. The transition metal ions are known to show a wide variety of colours. Yes, many transition metal ions are responsible for the colored pigments in paints, the color of gemstones such as rubies or sapphires and stained glass colors. Absorption spectra of chemical species (atoms, molecules or ions) are produced when a beam of electromagnetic energy (i.e. light) passes through a sample and a portion of the photons of electromagnetic energy passing through the sample is absorbed by the chemical species. A perfect example of this phenomenon is our understanding of colour. Consider the case where a ray of white light (i.e., sunlight) passes through a chlorophyll-containing sample solution (the compound responsible for leaf colour). In the blue and red regions of the visible portion of the electromagnetic spectrum the chlorophyll molecules absorb only a few select photons. The energies of such absorbed photons cause electrons to be excited in the chlorophyll molecule and the energy of these excited electrons is used in the plant cell to drive the conversion of carbon dioxide and water into glucose. More important for our purposes is that when the red and blue photons which chlorophyll absorbs are subtracted from white light, the resulting light beam that leaves the solution appears green to our eyes and this is why leaves appear green to us. If we were able to calculate the total number of photons of all colors entering the sample and compare it with the total number of photons of all the colors leaving the sample, we would find fewer photons exiting the sample than entering it. This is consistent with the fact that some of the photons from the white light beam that entered the solution were absorbed by the chlorophyll molecules.A spectrophotometer is an instrument for doing this measurement. Using some well-understood electronics this tool effectively "counts" the number of photons entering a sample and compares it to the number of photons leaving a sample. Moreover, the device is capable of taking white light and splitting it into its constituent colors (i.e. much like Copyright © 2010; John Hardesty and Bassam Attili Page 2 a prism), enabling the user to analyze the light absorption of different wavelengths with a resolution of almost 1 nm. In optics, the portion of physics which deals with light properties The Intensity, I,.

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Create your own variant of both a hiring and a termination policy related to security and keeping company info secure. Solution Information Security management is a process of defining the security controls in order to protect the information assets. Security Program The first action of a management program to implement information security is to have a security program in place. Security Program Objectives: Protect the company and its assets. Manage Risks by Identifying assets, discovering threats and estimating the risk. Objects are- Information Classification, Security Organization, and Security Education. Security Management Responsibilities: Determining objectives, scope, policies,re expected to be accomplished from a security program. Evaluate business objectives, security risks, user productivity, and functionality requirements. Approaches to Build a Security Program Security Controls Security Controls can be classified into three categories- Administrative Controls, Technical or Logical Controls ,Physical Controls. The Elements of Security Vulnerability: Vulnerability characterizes the absence or weakness of a safeguard that could be exploited. Threat: Any potential danger to information or systems. A threat is a possibility that someone (person, s/w) would identify and exploit the vulnerability. Risk: Risk is the likelihood of a threat agent taking advantage of vulnerability and the corresponding business impact. Reducing vulnerability and/or threat reduces the risk. Exposure: An exposure is an instance of being exposed to losses from a threat agent. Vulnerability exposes an organization to possible damages. Countermeasure or Safeguard: It is an application or a s/w configuration or h/w or a procedure that mitigates the risk. The Relation Between the Security Elements Example: If a company has antivirus software but does not keep the virus signatures up-to-date, this is vulnerability. The company is vulnerable to virus attacks. The likelihood of a virus showing up in the environment and causing damage is the risk. .

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Describe the ethnic city and the benefit of ethnic communiti? (. I need 4 paragraphs please . Explain what you believe social justice meant to Progressive? ( 1 paragraph Solution 1ans) An â€˜ethnic groupâ€™ has been defined as a group that regards itself or is regarded by others as a distinct community by virtue of certain characteristics that will help to distinguish the group from the surrounding community. Ethnicity is considered to be shared characteristics such as culture, language, religion, and traditions, which contribute to a person or groupâ€™s identity. Ethnicity has been described as residing in: â€¢ The belief by members of a social group that they are culturally distinctive and different to outsiders; â€¢ Their willingness to find symbolic markers of that difference (food habits, religion, forms of dress, language) and to emphasized their significance â€¢ Their willingness to organize relationships with outsiders so that a kind of â€˜group boundaryâ€™ is preserved and reproduced This shows that ethnicity is not necessarily genetic. It also shows how someone might describe themselves by an ethnicity different to their birth identity if they reside for a considerable time in a different area and they decide to adopt the culture, symbols and relationships of their new community. It is worth noting that the Traveller Community is recognised as a distinct ethnic group in the UK and Northern Ireland, but only as a distinct cultural group in the Republic of Ireland. Ethnicity is also a preferential term to describe the difference between humans rather than â€˜raceâ€™. This is because race is a now a discredited term that divided all peoples based on the idea of skin colour and superiority. There is only one â€˜raceâ€™, the human race as we are essentially genetically identical. For example, there is no French â€˜raceâ€™ but the French people could be described as a separate ethnic group. Advantages Disadvantages 2ans) Progressivism is a term commonly applied to a variety of responses to the economic and social problems that arose as a result of urbanization and the rapid industrialization introduced to America in the 19th Century. Progressivism began as a social movement to cope with a variety of social needs and eventually evolved into a reform movement and greater political action. The early progressives rejected Social Darwinism. In other words, they were people who believed that the problems society faced (poverty, poor health, violence, greed, racism, class warfare) could best be addressed by providing good education, a safer environment, an efficient workplace and honest government. Progressives lived mainly in the cities, were college educated, and believed that government could be a tool for change. .

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Describe the different types of qualitative analysis and indicate which is most persuasive. Solution A qualitative analysis or a research is based on the collection and analysis of non-numeric data like words or pictures. Qualitative methods have three distinct dimensions which are as follows: 1. Understanding Concept 2. Understanding People 3. Understanding Interaction Four major types of qualitative research are: 1. Phenomenology - The analysis of data is done by getting access to individuals life-worlds, which is actually their world of experience. This can be done by conducting in-depth interviews. In this analysis the commonalities across individuals are sought. Once the data is collected it will be analyzed and report will be prepared based on the collected data and understandings. 2. Ethonography - It is a analysis based on the study of a group of people based on their culture. People from same or similar culture share beliefs, customs, rituals, practices and language norms. This will be highly effective in analyzing data qualitatively. The data that are collected in this method of analysis are based on the cultural standards, insider\'s perspective, external and social scentific view. 3. Grounded Theory - Here the analysis is based on the theoretical approach. The major characteristics of grounded theory are Fit, Understanding, Generality and control. Theories provide explanation and they tell us how and why of any situiation. 4. Case Study - In this analysis the various cases are considered and in-depth analysis is performed to study the variations and deviations. In all the above steps Data coding and analysis takes place. Data Analysis is done in three different steps and they are: 1. Open Coding -Â Â Reading transcripts 2. Axial Coding - Organizing concepts 3. Selective Coding - Focusing on main ideas Phenomenology is the most pursuasive method of qualitative analysis since the data is sought directly from the individuals. Hence this can be relied upon thoroughly. .

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Describe neo-evolution. What is it and what are its primary tenets? Provide an example of a technology that is altering or may alter human evolution. What are the potential benefits of this type of technology? What are the potential drawbacks? What are the moral and ethical implications of neo-evolution? Should we continue to pursue this form of technology? Why or why not? Solution oevolutionism , school of anthropology concerned with long-term culture change and with the similar patterns of development that may be seen in unrelated, widely separated cultures. It arose in the mid-20th century, and it addresses the relation between the long-term changes that are characteristic of human culture in general and the short-term, localized social and ecological adjustments that cause specific cultures to differ from one another as they adapt to their own unique environments. Further, neoevolutionists investigate the ways in which different cultures adapt to similar environments and examine the similarities and differences in the long-term historical trajectories of such groups. Because most neoevolutionists are interested in the environmental and technological adjustments of the groups they study, many are identified with the cultural ecological approach to ethnography, with the culture process approach to archaeology, and with the study of early and protohumans in biological anthropology. Neoevolutionary anthropological thought emerged in the 1940s, in the work of the American anthropologists Leslie A. White and Julian H. Steward and others. White hypothesized that cultures became more advanced as they became more efficient at harnessing energy and that technology and social organization were both influential in instigating such efficiencies. Steward, inspired by classifying the native cultures of North and South America, focused on the parallel developments of unrelated groups in similar environments; he discussed evolutionary change in terms of what he called â€œlevels of sociocultural integrationâ€ and â€œmultilinear evolution,â€ terms he used to distinguish neoevolution from earlier, unilineal theories of cultural evolution. In the years since Whiteâ€™s and Stewardâ€™s seminal work, neoevolutionary approaches have been variously accepted, challenged, rejected, and revised, and they continue to generate a lively controversy among those interested in long-term cultural and social change. .

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Describe ip protocol security pros and cons. Solution IP Protocol Security: Internet Protocol Security ( IPsec ) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec can be used in protecting data flows between a pair of hosts ( host-to-host ), between a pair of security gateways ( network-to-network ), or between a security gateway and a host ( network-to-host ). Security architecture: Pros of IPsec: Â·Security at the Network Layer Level - Being based at the network level, this technology is completely invisible in its operation . The end users are never required to learn about it, and neither do they ever directly interact with it. This in itself is an added layer of security for the VPNs running on IPsec. Â·No Application Dependence - While SSL-/ SSH-/ PGP-based VPNs are application-dependent, IPsec-based VPNs do not need to worry about application dependence. Since the entire security system is implemented at the network level, there are no application compatibility issues. Cons of IPsec: Â·CPU Overhead - Having to perform encryption and decryption on the hundreds of megabytes of data flowing through the machines requires quite a bit of processing power, and this translates to higher processor loads . Â·Compatibility Issues - IPsec is a standardized solution today, and yet, some large software developers may not adhere to it, and may go ahead with standards of their own. As a result, this can lead to compatibility issues . Â·Broken Algorithms - Some of the security algorithms that are still being used in IPsec have already been cracked. This poses a huge security risk, especially if the network administrators unknowingly use those algorithms instead of newer, more complex ones that are already available. .

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Describe core competencies and their relationship to operations management. Please provide an example for a manufacturing environment and a service environment. Solution core competency fullfills three key criteria: A core competency can take various forms, including technical/subject matter know-how, a reliable process and/or close relationships with customers and suppliers. It may also include product development or culture, such as employee dedication, best Human Resource Management (HRM), good market coverage, or kaizen or continuous improvement over time. Core competencies are particular strengths relative to other organizations in the industry, which provide the fundamental basis for the provision of added value. Core competencies reflect the collective learning of an organization and involve coordinating diverse production skills and integrating multiple streams of technologies. It includes communication, involvement, and a deep commitment to working across organizational boundaries, such as improving cross-functional teams within an organization to address boundaries and to overcome them. Few companies are likely to build world leadership in more than five or six fundamental competencies. As an example of core competencies, Walt Disney World Parks and Resorts has three main core competencies: core competencies their relationship to operations management Operations management is an area of management concerned with overseeing, designing, and controlling the process of production and redesigning business operations in the production of goods or services. It involves the responsibility of ensuring that business operations are efficient in terms of using as few resources as needed, and effective in terms of meeting customer requirements. Core competencies are the collective learning in the organization, especially how to coordinate diverse production skills and integrate multiple streams of technologies.It embodies an organization .

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Describe in detail a man-in-the-middle attack on the Diffie-Hellman key-exchange protocol whereby the adversary ends up sharing a key k A with Alice and a different key k B with Bob, and Alice and Bob cannot detect that anything has gone wrong. What happens if Alice and Bob try to detect the presence of a man-in-the-middle adversary by sending each other (encrypted) questions that only the other party would know how to answer? Solution In man-in-the-middle attack, an opponent Eve intercepts Alice\'s public key K A and sends her own public key as K A to Bob. When Bob transmits his public key K B , Eve substitutes it with her own and sends it as K B to Alice. Eve and Alice thus agree on one shared key and Eve and Bob agree on another shared key. After this exchange, Eve simply decrypts any messages sent out by Alice or Bob, and then reads and possibly modifies them before re-encrypting with the appropriate key and transmitting them to the other party. This vulnerability is present because Diffie-Hellman key exchange does not authenticate the participants. The man-in-the-middle attack may be prevented by using digital signatures and other cryptographic schemes. Bob to encrypt a message so that only Alice will be able to decrypt it, with no prior communication between them other than Bob having trusted knowledge of Alice\'s public key. Alice\'s public key is g K A mod p, g,p. . To send her a message, Bob chooses a random K B and then sends Alice g K B mod p together with the message encrypted with ( g K A ) K B mod p symmetric key. Only Alice can determine the symmetric key and hence decrypt the message because only she has K A. .

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Describe events that led to the signing of the Homeland Security Act 2002 into law on November 25, 2002. What was the intent of this Act and what department did it create? How did the Act change FEMAâ€™s emergency response role? Several agencies resisted efforts to be incorporated in the new department. Identify three such agencies and explain why they may have been reluctant to join. Do you agree? Solution Department of Homeland Security (DHS) was formed during the incorporation of all or part of 22 various federal departments into a united, incorporated Department. It was initiated to make the Americans safe. The President of America says to form a novel DHS, by considering all the departments into a single to safeguard the America under the name of DHS. It is the strategic plan applied by him after the terrorist attack in pennenslavia. The DHS mission is to keep the Americans safe from any of the attacks. Blue campaign and citizen corps involved in the Department of Homeland security. The Blue Campaign gives its support to the DHS and believe that every people has a right to have a freedom and then it combines with other NGOâ€™s, to fulfill its belief. The mission of Citizen Corps is to bind the people of Americans to enhance their knowledge with education, providing training centers, and volunteer service to make people strong and prepare them how to handle situations when they were troubles or attacks by other or some other natural disasters occurs. The Federal Emergency Management Agency (FEMA) is an organization of theUnited States Department of Homeland Security, initially created by Presidential Reorganization Plan No. 3 of 1978 and implemented by twoExecutive Orders on April 1, 1979.The goal is to organize the reply to a disasters that has happened in the US and then provide the funds to local and state government. The governer from that state that is where the disaster took place is the right person to intimate to the FEMA and to president .

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