Age structure.

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  • The first section of this chapter explores corruption, modelled as a non-fatal transmissible infection which divides a community into 4 compartments: Susceptible, Infective, Removed and Resistant. The Removed class has age structure. The corruptionfree steady state, though unstable, can be stabilized by feedback control. The efficiency of the measure depends on a number of parameters, especially the rates at which susceptibles become resistant, and the infective are removed or become resistant. The second part analyses disease transmission as a saturable interaction.

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  • The mechanism of age-related decrease of angiogenic potential in myocardium is still unclear. Cardiac microvascular endothelial cells (CMECs) play a key role in cardiac angiogenesis. In this study, using the CMECs which are isolated from young and old hearts, we found that the migration and proliferation capacity of old CMECs were diminished.

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  • Oocyte membrane localization of vitellogenin receptor coincides with queen flying age, and receptor silencing by RNAi disrupts egg formation in fire ant virgin queens Hsiao-Ling Lu, S. B. Vinson and Patricia V. Pietrantonio Department of Entomology, Texas A&M University, College Station, TX, USA Keywords insect ovary; insect reproduction; oocyte development; RNA interference; social insects Correspondence P. V. Pietrantonio, Department of Entomology, Texas A&M University, College Station, TX 77843-2475, USA Fax: +1 979 845 6305 Tel: +1 979 845 9728 E-mail: p-pietrantonio@tamu.

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  • A severe challenge to the idea that mitochondrial DNA mutations play a major role in the aging process in mammals is that clear loss-of-function mutations accumulate only to very low levels (under 1% of total) in almost any tissue, even by very old age. Their accumulation is punctate: some cells become nearly devoid of wild-type mitochondrial DNA and exhibit no activity for the partly mitochondrially encoded enzyme cytochrome c oxidase. Such cells accumulate in number with aging, suggesting that they survive indefinitely, which is itself paradoxical....

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  • Module J - Implementing a database with Microsoft Access. Identify the steps necessary to implement the structure of a relational database using the data definition language provided by Microsoft Access, demonstrate how to use the data manipulation subsystem in Access to enter and change information in a database and how to query that information, explain the use of the application generation subsystem in Access to create reports and data entry screens.

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  • Aging is accompanied by a gradual deterioration of cell functions. Mitochondrial dysfunction and accumulation of protein damage have been proposed to contribute to this process. The present study was carried out to examine the effects of aging in mitochondrial matrix isolated from rat liver. The activity of Lon protease, an enzyme implicated in the degradation of abnormal matrix proteins, was meas-ured and the accumulation of oxidation and glycoxidation (N e -carboxymethyllysine, CML) products was monitored using immunochemical assays....

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  • Chapter 6 - Books. In this chapter, you will learn: understand that books are the oldest form of mass communications, recognize the factors that led to the commercialization of book publishing, explain how the digital revolution may change the underlying structure of the book industry, identify the main parts of the book industry, understand the -economics that support the book industry.

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  • Chapter 11 - Cable, satellite, and internet television. Learning objectives of this chapter include: trace the development of cable, satellite, and Internet television; describe the implications of the digital age for these media; understand the structure, content, and finances of cable, satellite, and Internet TV; appreciate the potential of user-generated content; explain the audience measurement techniques used for these media.

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  • Chapter 12 - The internet and the world wide web. In this chapter we will discuss: A brief history of the computer, the internet, structure and features of the internet, the evolving internet, economics, feedback, social implications, the future: the evernet.

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  • This book will teach you the first steps of English. It gives you about 500 important words in santences, with the meaning shown through pictures.Or vocabulary words, a person's vocabulary is the set of words in a language which they are familiar (known). Vocabulary often increases with age, and the basic tools and useful in communication and knowledge acquisition.

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  • Aim: to help ss to learn some new words about numbers and new structure. II. Objective: By the end of the lesson, ss will be able to learn some new words and new structure. III. New structure: How old are you ? I’m nine. IV. Techniques: Shark attack, Rob out and remembers, role play. V. Teaching aids: Teacher’s book, student’s book, cassette player, posters, exercise book, picture. VI. Skills: Speaking, Listening.

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  • We live in the age of biology—the human and many other organisms’ genomes have been sequenced and we are starting to understand the function of the metabolic machinery responsible for life on our planet. Thousands of new genes have been discovered, many of these coding for enzymes of yet unknown function. Understanding the kinetic behavior of an enzyme provides clues to its possible physiological role. From a biotechnological point of view, knowledge of the catalytic properties of an enzyme is required for the design of immobilized enzyme-based industrial processes.

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  • In this account of 60 years of Bible translation, Eugene Nida sets out his journey with a personal touch. On the way, he reveals the importance of a solid knowledge of Greek and Hebrew as well as of the historical settings in which the Bible was created, in order to render effective translations. Through his story we get to know Nida's views on translations through the ages, in different cultures and narrative traditions, right through to the 21st Century. This book is in the first place a study in anthropological linguistics that tells the rich history of Bible translation, the...

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  • Service Robot Applications ..Service Robot Applica tions Edited by Service robotics is among the most promising technology dedicated to supporting the elderly since many countries are now facing aging populations coinciding with a decrease in the amount of the young working population. Service robots assist human beings, generally by performing dirty or tedious work, such as household chores. Service robots, in some cases, may replace human caretakers in their ability to care for elderly people. Yoshihiko Takahashi I-Tech .

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  • The introduction of the technology for bonded composite repairs of metallic airframe structures could not have come at a more opportune time. Today, many countries are facing the challenge of aging aircraft in their inventories. These airframes are degrading due to damage from fatigue cracking and corrosion. Repair with dependable techniques to restore their structural integrity is mandatory. The concept of using bonded composite materials as a means to maintain aging metallic aircraft was instituted in Australia approximately thirty years ago....

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  • Sound emission studies have been launched in the early 1950s. The technology before the mid-1960s, mainly in electronics engineering and materials, enabling rapid development of the method. Currently technical pronounced applied to a number of research areas, both in civil and industrial use.

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  • established in the earliest history of the planet or as the result of a continuing supply of water and the constituents of sea water by degassing from the Earth’s interior. In 1951 W.W. Rubey, in his Presidential Address to the Geological Society of America, took the latter point of view. His arguments were colored by the knowledge available at that time of the age of the Earth and the age of the oldest rocks. Based on the analysis of lead isotopes in galenas, it was determined in the late 1940s that the Earth was about 3.2 billion years old.

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  • The availability of efficient and cost-effective technologies to repair or extend the life of aging military airframes is becoming a critical requirement in most countries around the world, as new aircraft becoming prohibitively expensive and defence budgets shrink. To a lesser extent a similar situation is arising with civil aircraft, with falling revenues and the high cost of replacement aircraft.

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  • Hence, the average age of the air pollution related fatalities is much higher than for victims of fatal road accidents (30-40 years of age). Theoretical as well as empirical evidence indicates a decreasing WTP with increasing age, with reduced remaining life expectancy and with reduced quality of life. For the present study, the relationship adopted is provided by the latest research of Jones-Lee.

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  • ‘Professions’ have been subject to a variety of theoretical schema that attempt to identify their unique characteristics or traits: the features that can be regarded as the basis for the discrimination between forms of occupational organization and control that are professional and those that are not (Saks, 1983; Abbott, 1988). This elaboration of the essential traits of professions is more than a professional discourse.

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