Laboratory Information Management Systems Essay Example | Topics and Well Written Essays - 750 words

Laboratory Information Management Systems - Essay Example Since publication, the Bell-LaPadula model has helped in the advancement of science and technology by providing a mathematical basis for the examination of laboratory security. Moreover, this model is a major component of having a disciplined approach to building secure and effective laboratory systems. The Bell-LaPadula model can also be used to abstractly describe the computer security system in the laboratory, without regard to the system's application. The goal of modern security research is to facilitate the construction of multilevel secure systems, which can protect information of differing classification from users that have varying levels of clearance. There are some deficiencies inherent in the Bell and LaPadula model, and there have been efforts to develop a new approach to defining laboratory security models, on the basis that security models should be derived from specific applications. The use of the Bell and LaPadula Model, has been successful in modelling information that is relevant to security, even though this success might be responsible for the vagueness of the model about its primitives. This vagueness can also be examined with respect to the theory that the Bell and LaPadula Model and Noninterference are equivalent. ... laboratory reduces the need for human intervention and creates a more efficient environment in which human beings and technology can interact to produce a great deal more information and accurate data that was not possible prior to automation. Its approach is to define a set of system constraints whose enforcement will prevent any application program executed on the system from compromising system security. The model includes subjects, which represent active entities in a system (such as active processes), and objects, which represent passive entities (such as files and inactive processes). Both subjects and objects have security levels, and the constraints on the system take the form of axioms that control the kinds of access subjects may have to objects. (http://chacs.nrl.navy.mil/publications/CHACS/2001/2001landwehr-ACSAC.pdf) While the complete formal statement of the Bell-LaPadula model is quite complex, the model can be briefly summarized by these two axioms stated below: (a) The simple security rule, which states that a subject cannot read information for which it is not cleared (i.e. no read up) (b) The property that states that a subject cannot move information from an object with a higher security classification to an object with a lower classification (i.e. no write down). (http://chacs.nrl.navy.mil/publications/CHACS/2001/2001landwehr-ACSAC.pdf) These axioms are meant to be implemented by restriction of access rights that users or processes can have to certain objects like devices and files. The concept of trusted subjects is a less frequently described part of the Bell-LaPadula model.Systems that enforce the axioms of the original Bell-LaPadula model very strictly are often impractical, because in a real system, a user

Accommodation Theory Essay Example | Topics and Well Written Essays - 500 words

Accommodation Theory - Essay Example Accommodation theory suggests that every person in a given society has the ability to change or adjust their speech depending on the nature of the conversation, or the other person they are addressing and the purpose of the interaction. The changing of the speech patterns is a summary of how the accommodation theory works. For example, when native people talk to foreigners, they tend to speak more slowly or when adults talk with children and babies, they use simple language (Griffin, 2008). When put into context, it means that people accommodate others by adjusting their communicational behavior to match the level of those they are with, in a conversation. The results of accommodation are ultimately either divergence or convergence. As their names suggest, a convergence result is where a person moves their speech to be closer to that the other person’s. On the other hand, a divergence result is when the speech move away from each other. Convergence result allows the reduction of the social distance between the two conversing parties. It allows a person who is of a higher class to tone down their speech so that they can communicate effectively with the lower class person. On the contrary, the divergence resul t increases the distance between people. The divergence result emphasizes the differences that exist between people. The accommodation theory has many existing and available means by which it may be applied. Currently the accommodation theory is applied to many communication processes. Gasiorek and Howard (2013, 15) opines that in a company or an organization that has different levels of employees, the accommodation theory can be applied to aid the communication between the management and the employees. For instance, it is used for horizontal communication amongst the employees and in vertical communication between employees and senior management. To test this theory, Giles came up with several theories that served to test why people change

Scientific Method and Primate Observation Essay

Scientific Method and Primate Observation - Essay Example Checking on how the non human primates relate amongst themselves, the way of feeding after hunting and how they hunt for food on daily bases. How do the non human primates get the daily bread and how they share the food? What is the level of intelligence of the non human primates and their way of handling hard tasks? This is the way the primates simplify the tasks that they face on their daily lives. Non human primates like other primates that are the human beings they mate and reproduce. How do they mate? How do they care for their young ones? Non human primates have household responsibilities just like human beings the Homo sapiens. The males have the responsibility to cater for their families by providing food and security to the females and children. The non human primates have a much enhanced social life in that they are capable of organizing meeting and even scheming politics in their habitats. Relationships The non human primates exhibit team work in communities which have mal es, females and young ones. They live in a communal way that depicts the level of unity that is in the community of the primates. In this way, they are able to interact leading to a more social life hence more innovation to the young ones. This is the way the young ones get knowledge and skills on which to survive in their habitat (Brunch 30). In the communities, they live harmoniously and hence improved security within the community because when they are in groups they intimidate enemies hence scaring them away. But this is not the case with all primates. Under keen observation, some primates live solitary lives hence the case of security due to groups will not apply. When the primates live as individuals the factor of social skills that are with other primates will not be distributed fairly hence this is a disadvantage to the lone primates. On view from far in the cradle land of non human primates, the dangers are very many and prevalent at any time (Brunch 90). This gives rise to the importance of groups and communities within the primates that are security. Habitation and Food Hunting The primates are very funny animals in the way they live from their day to day lives. They do not show intention to have any specific habitation, but they modify temporary nests where they spend overnight. Monkeys abide in certain tree branches, but they do not make nests. This is shown by the nest's absence in the trees where they sleep overnight. In the search for food males go hunting and bring home food in the evening for females and young ones (Brunch 69). This is a major duty that they have prior to offering security and company to the females and young ones. The primates’ females take a major responsibility in educating the young ones on the best vegetation for their food. One will see the females even educating the young ones on the best tools to use for simplifying the hard tasks that they meet on their way. This gives the young ones knowledge on what is good for them and what is not edible for them (Fleagle 45). Most of these primates join in hunting and after the hunt they put the food and share it first to the young ones then to the females. Due to lack of knowledge about storage of food by the non human primates they do not store any food for future use but they live from hand to mouth. Therefore, they look for food each and every day so as to feed