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Analytic epidemiological studies
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Analytic epidemiological studies aim to investigate and identify factors associated with the presence of disease within populations, through the investigation of factors which may vary between individual members of these populations. Details on study designs appropriate for these investigations are given elsewhere. Conceptually, this involves investigating the disease experience amongst different 'groups' of animals within an overall population, distinguished according to the factor(s) of interest. These factors can be classified as one of the components of the 'epidemiological triad' of Host, Agent and Environment, many of which are closely interrelated with each other.

Subject:
Natural Science
Material Type:
Diagram/Illustration
Reading
Provider:
WikiVet
Provider Set:
Veterinary Epidemiology
Date Added:
12/27/2018
Biology 2e
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CC BY
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Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

Subject:
Biology
Material Type:
Full Course
Provider:
Rice University
Provider Set:
OpenStax College
Date Added:
03/07/2018
Biology 2e, Biological Diversity, Viruses, Virus Infections and Hosts
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By the end of this section, you will be able to do the following:

List the steps of replication and explain what occurs at each step
Describe the lytic and lysogenic cycles of virus replication
Explain the transmission of plant and animal viruses
Discuss some of the diseases caused by plant and animal viruses
Discuss the economic impact of plant and animal viruses

Subject:
Applied Science
Material Type:
Module
Date Added:
09/20/2018
Biology 2e, Ecology, Population and Community Ecology, Community Ecology
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CC BY
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By the end of this section, you will be able to do the following:

Discuss the predator-prey cycle
Give examples of defenses against predation and herbivory
Describe the competitive exclusion principle
Give examples of symbiotic relationships between species
Describe community structure and succession

Subject:
Applied Science
Material Type:
Module
Date Added:
09/20/2018