F& d wikipedia question
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How To Wire A 2 Speed Motor To A Switch
Transparent renewal of user keys B. Easy distribution of the certificates between the users C. Fast hardware encryption of the raw data D. Any Time. To prevent an attacker from retrieving or modifying the information, the chips are designed so that the information is not accessible through external means and can be accessed only by the embedded software, which should contain the appropriate security measures.
Examples of tamper-resistant chips include all secure cryptoprocessors, such as the IBM and chips used in smartcards, as well as the Clipper chip. A chip may even be rated for "cold zeroisation", the ability to zeroise itself even after its power supply has been crippled.
Nevertheless, the fact that an attacker may have the device in his possession for as long as he likes, and perhaps obtain numerous other samples for testing and practice, means that it is practically impossible to totally eliminate tampering by a sufficiently motivated opponent. Because of this, one of the most important elements in protecting a system is overall system design.
In particular, tamper-resistant systems should "fail gracefully" by ensuring that compromise of one device does not compromise the entire system.
In this manner, the attacker can be practically restricted to attacks that cost less than the expected return from compromising a single device plus, perhaps, a little more for kudos. Public key certificate B. Attribute certificate C. Root certificate D. Code signing certificate Answer: A Explanation: In cryptography, a public key certificate or identity certificate is an electronic document which incorporates a digital signature to bind together a public key with an identity — information such as the name of a person or an organization, their address, and so forth.
The certificate can be used to verify that a public key belongs to an individual. In a typical public key infrastructure PKI scheme, the signature will be of a certificate authority CA. In a web of trust scheme, the signature is of either the user a self-signed certificate or other users "endorsements".
In either case, the signatures on a certificate are attestations by the certificate signer that the identity information and the public key belong together. In computer security, an authorization certificate also known as an attribute certificate is a digital document that describes a written permission from the issuer to use a service or a resource that the issuer controls or has access to use.
The permission can be delegated. An analogy may make the distinction clear. A PKC can be considered to be like a passport: it identifies the holder, tends to last for a long time, and should not be trivial to obtain. An AC is more like an entry visa: it is typically issued by a different authority and does not last for as long a time. As acquiring an entry visa typically requires presenting a passport, getting a visa can be a simpler process.
A real life example of this can be found in the mobile software deployments by large service providers and are typically applied to platforms such as Microsoft Smartphone and related , Symbian OS, J2ME, and others. In each of these systems a mobile communications service provider may customize the mobile terminal client distribution ie. When a developer wishes to enable distribution and execution in one of these controlled environments they must acquire a certificate from an appropriate CA, typically a large commercial CA, and in the process they usually have their identity verified using out-of-band mechanisms such as a combination of phone call, validation of their legal entity through government and commercial databases, etc.
Once the identity has been validated they are issued an identity certificate they can use to sign their software; generally the software signed by the developer or publisher's identity certificate is not distributed but rather it is submitted to processor to possibly test or profile the content before generating an authorization certificate which is unique to the particular software release. That certificate is then used with an ephemeral asymmetric key-pair to sign the software as the last step of preparation for distribution.
There are many advantages to separating the identity and authorization certificates especially relating to risk mitigation of new content being accepted into the system and key management as well as recovery from errant software which can be used as attack vectors.
Predicting hydrate formation
Wikipedia was originally started as a redevelopment of an earlier online encyclopaedia called Nupedia. The Wikipedia project was started in and in the Wikimedia Foundation was formed as an independent institution to maintain and develop open content Wiki-based projects Voss The Neutral Point of View policy acknowledges the existence of multiple viewpoints and seeks to attain a fair Wikipedia l representation of all contradictory viewpoints. The second, No Original Research, policy states that all information has to be attributable to an external published source to be considered reliable Wikipedia m by the contributor. The third policy underlines the policy of verifiability by an external source Wikipedia l and that the role of Wikipedia is to provide a comprehensive summary of existing knowledge rather than functioning as a source of new findings.
Where does the information come from? Information source use patterns in Wikipedia
Armstrong, A. Student perceptions of federated searching vs single database searching. Reference Services Review, 37 , Two sections of college English students completed work sheets designed to elicit information on the above. Fifteen of the 31 student searchers reported that both tools were easy to use and many students were satisfied with their results. These reports suggest that librarians consider teaching students to search in both environments. Attebury, R. A decade of personalized research assistance.
Everything About Wikipedia, Part 2: Notability
I completed my doctorate in anthropology at the University of New Mexico in , on the basis of research conducted in North American plains Native American and settler communities. In my husband Alan Rumsey and I conducted a first period of fieldwork together in the Highlands of Papua New Guinea, and our involvement continues to this day, with research emphases on segmentary sociality, warfare and peace-making, exchange, language and politics, and, most recently, language socialization. Additionally, in , and in keeping with family circumstances young children at that time, I began field research in Southern Germany on transformations in farming, rural conditions, occupation and government measures to mitigate the impacts of change. This research association also continues, and has developed into contacts with other European locations and institutions in Spain, Italy and France concerning questions of agrarian transition, social change and conflicts over homely belonging in various locations including, most recently, ones of intensive tourist visitation. I remain committed to ethnographic fieldwork in these areas.
Martingale Problem
However, we suggest using MW 1. This version includes support for Composer , a dependency manager that will ease installation. This article or chapter is incomplete and its contents need further attention. Some information may be missing or may be wrong, spelling and grammar may have to be improved, use your judgment! While traditional wikis contain only text which computers can neither understand nor evaluate, SMW adds semantic annotations that allow a wiki to function as a collaborative database. Semantic MediaWiki was first released in , and currently has over ten developers, and is in use on hundreds of sites.
Philipp Gunz
Publikationen Artikel in referierten Zeitschriften Anderl, C. Cooperative preferences fluctuate across the menstrual cycle. Judgment and Decision Making, 10 5 , Volltext anfordern Arndt, J. Text- picture integration: How delayed testing moderates recognition of pictorial information in multimedia learning. Applied Cognitive Psychology, 29 ,
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated. Show full item record Give your opinion. Open education Wikipedia Open educational resources Open educational practices Open science. Cardoso, T.
Narcolepsy is a sleep disorder that is often misunderstood. It is characterized by severe and persistent daytime sleepiness that can cause impairments in school, work, and social settings as well as heighten the risk of serious accidents and injuries. Although rare in comparison to many other sleep disorders, narcolepsy affects hundreds of thousands of Americans, including both children and adults. Understanding the types of narcolepsy and their symptoms, causes, diagnosis, and treatment can empower patients and their loved ones to cope with it more effectively. Its primary symptom is excessive daytime sleepiness EDS , which occurs because the brain is unable to properly regulate wakefulness and sleep. Normal sleep unfolds through a series of stages , with rapid eye movement REM sleep occurring in the final stage, usually an hour or more after falling asleep.
Wikipedia is composed of millions of articles, each of which explains a particular entity with various languages in the real world. Since the articles are contributed and edited by a large population of diverse experts with no specific authority, Wikipedia can be seen as a naturally occurring body of human knowledge. In this paper, we propose a method to automatically identify key entities and relations in Wikipedia articles, which can be used for automatic ontology construction. The titles of the articles and anchored phrases in their text are regarded as entities, and their types are automatically classified with minimal training. We attempt to automatically detect and identify possible relations among the entities based on clustering without training data, as opposed to the relation extraction approach that focuses on improvement of accuracy in selecting one of the several target relations for a given pair of entities. While the relation extraction approach with supervised learning requires a significant amount of annotation efforts for a predefined set of relations, our approach attempts to discover relations as they occur naturally. Unlike other unsupervised relation identification work where evaluation of automatically identified relations is done with the correct relations determined a priori by human judges, we attempted to evaluate appropriateness of the naturally occurring clusters of relations involving person-artifact and person-organization entities and their relation names.
Download CV and list of publications [ pdf ]. Research Interests Curriculum Vitae Publications. Philipp Gunz is a biological anthropologist with a primary research interest in paleoanthropology, who works as a Research Fellow at the Department of Human Evolution. He studies developmental and evolutionary changes in the growth patterns and morphology of fossil hominins, extant humans and non-human primates.
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