Architecture of viruses

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  • We planned the first edition of this book on a ‘need to know’ basis, its primary object being to provide students and medical and dental practitioners with the knowledge essential for an informed approach to the prevention and treatment of viral infections. We aimed also at supplying just enough basic virology to underpin the more practical aspects—clinical manifestations, epidemiology, pathogenesis, immune responses, and so forth. And not least, we tried our best to make the text as readable as is possible, given the highly technical nature of some of the material.

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  • A computer virus is a piece of code hiding in a program that can automatically copy itself or embed a mutation of itself in other programs Cannot spread on their own Often require a host program to live in Infected program: a host program with virus Uninfected program (healthy program): a program cleared of all viruses Disinfected program: a program once infected but now cleared of viruses Specific to particular types of file systems, file formats, and operating systems Particular types of architecture, CPU, languages, macros, scripts, debuggers, and every other form of programming or syst...

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  • Intruders Intrusion Techniques Password Protection Password Selection Strategies Intrusion Detection Viruses and Related Threats Malicious Programs The Nature of Viruses Antivirus Approaches Advanced Antivirus Techniques Recommended Reading and WEB Sites

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  • Service-oriented architecture, or SOA, is a hot topic in business today. You may have read about service-oriented architectures and are wondering how they can affect your business as well as how they can be of use to you. By looking at it from both a real-world perspective as well as a technical perspective, you will forge a solid understanding of service-oriented architecture from which you can jump off to implementing this technology within your business.

    pdf4p daokim 06-08-2009 159 21   Download

  • As the final touches are added to Gigabit Passive Optical Network (GPON) standards and with next-generation GPON (N-GPON) standards already underway, it should be clear to service providers that additional network upgrades are imminent as demand for bandwidth continues to increase. Today’s fiber-to-the-premise (FTTP) architectures, deployed with broadband PON (BPON) technology, are meeting the needs of small business and residential customers, but are they being constructed with easy upgradeability once bandwidth usage demands it?...

    pdf4p maiphuong 14-08-2009 94 21   Download

  • There are three predominant schools of thought regarding how to meet the everincreasing bandwidth needs of consumers and businesses. Fiber-to-the-premise (FTTP) architectures take optical fiber all the way to the home or office and offer the most future-proof solution in terms of pure bandwidth capabilities. But in some cases, FTTP may not be the optimal solution in terms of overall cost and the value of existing infrastructure.

    pdf4p mylinh 13-08-2009 100 6   Download

  • Tham khảo sách 'human virology_2', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • The new overwatch security pillar acts as an infection detection, containment, and remediation engine that is automatically triggered when a threat has bypassed detection by the existing "in-line" infrastructure and has infiltrated the enterprise network. The overwatch security layer uses data from a real-time reputation and behavioral correlation database to detect active data-stealing malware and other potential threats.

    pdf14p khongmuonnghe 04-01-2013 52 5   Download

  • In today’s and tomorrow’s fiber-to-the-premises (FTTP) architectures, the best solution for offering multiple services to subscribers will be the one that is the most cost effective, flexible, and scalable. With its 65-year history of innovative solutions for managing the physical cable plant, ADC is bringing all its experience to bear in the outside plant (OSP) and fiber-to-the-premises (FTTP) markets. Driven by the customer’s need for overall affordability and operational flexibility, ADC is designing and building the first true FTTP solution – from the ground up....

    pdf4p mylinh 13-08-2009 78 4   Download

  • Carriers are faced with several critical decisions regarding upgrading their networks from traditional circuit-switched services to supporting the increasing array of broadband services customers are demanding today. The ability to deliver a combination of voice, video, and data services will require many modifications to existing infrastructures, challenging every service provider to seek ways to make this migration to broadband as painless as possible in terms of cost, time, and ensuring a future-proof network....

    pdf8p mylinh 13-08-2009 73 4   Download

  • Deploying optical fiber throughout mid-and high-rise multiple dwelling unit (MDU) buildings presents service providers with a mixture of challenges due to the inescapable fact that each MDU building is unique. Cable pathways and distances between logical distribution points vary from building to building, a situation that complicates materials ordering and lengthens installation efforts.

    pdf4p maiphuong 14-08-2009 60 4   Download

  • Fiber-to-the-premise (FTTP) architectures are presenting both new challenges and new opportunities regarding the use of connectors in the outside plant (OSP). At no other time have connectors been as necessary in OSP architectures – and they are destined to become even more prevalent in the days ahead as the FTTP networking market continues to gain momentum. Service providers competing for the FTTP market require the same flexibility in test access and the ability to provision that they have typically enjoyed in the central office. They need to scale service in a cost-effective manner....

    pdf5p mylinh 14-08-2009 62 4   Download

  • This section is dedicated to those who would like to write a virus, but don't have the knowledge to do so. First of all, writing a virus is no big deal. It is an easy project, but one which requires some basic programming skills, and the desire to write a virus! If either of these is missing, writing a virus would be tedious indeed!.

    pdf0p doilan 25-01-2013 51 4   Download

  • Making cost-sensitive decisions about deploying FTTX architectures requires service providers to not only look at initial installation costs, but to also peer into the future regarding operational and maintenance expenses following service turn-up. Cost modeling allows the deployer to review the financial benefits of their design choices before deployment begins. This paper specifically addresses the cost comparisons between using hardened connectors vs. splices in two basic areas of the FTTX network – the distribution plant and drop cable portions....

    pdf4p mylinh 13-08-2009 60 3   Download

  • The goal for bringing the promise of fiber to residential subscribers is to install flexible and reliable fiber-to-the-premise (FTTP) architectures at the lowest possible cost. Plug-and-play architectures provide significant advantages, such as reducing the need for highly-skilled technicians to perform installation tasks and enabling easy access to facilitate maintenance and troubleshooting.

    pdf4p maiphuong 14-08-2009 75 3   Download

  • Viruses, worms, Trojans, and bots are all part of a class of software called malware. Malware or malicious code (malcode) is short for malicious software. It is code or software that is specifically designed to damage, disrupt, steal, or in general inflict some other “bad” or illegitimate action on data, hosts, or networks.

    pdf0p doilan 25-01-2013 46 3   Download

  • There are many considerations regarding the outside plant portion of any fiber-to-the-premise (FTTP) network architecture. Each area must weigh in on issues of cost, flexibility, performance, accessibility and other important criteria. As fiber gains momentum for use in delivering high-speed broadband services to homes and small businesses, questions have surfaced regarding the best way to connect the large numbers of drop cables feeding into the network.

    pdf2p mylinh 13-08-2009 56 2   Download

  • Ethernet-based data services offer the opportunity to create differentiation, command premium pricing, and earn higher margins for such value-added data services as transparent LANs, storage area networks, and virtual private networks. Extending native 10/100Base-T and Gigabit Ethernet services across the LAN, WAN, and MAN means data services are less expensive to deploy, provision quickly, and offer exceptional reliability and security.

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  • ADC’s new OmniReach® Rapid Fiber System is designed to eliminate the unique challenges posed by today’s Multiple Dwelling Unit (MDU) buildings, when deploying FTTX networks. MDU buildings present service providers with diverse challenges such as varying cable pathways and distances between logical distribution points, demanding installation schedules and increased quality risks due to splicing.

    pdf8p maiphuong 14-08-2009 85 16   Download

  • Continued cellular market penetration, burgeoning consumer demand for wireless rich media, and the promise of even more data-intensive applications continue to drive bandwidth consumption, fueling an estimated 100 percent increase in the global number of cellular base stations by 2009. 3G and 4G cellular services, which require very low latency and packet-based switching, place additional burdens on existing infrastructure, taxing copper backhaul solutions to their limits.

    pdf8p mylinh 13-08-2009 108 12   Download



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