نتایج جستجو برای: biological communities

تعداد نتایج: 589319  

Journal: :Journal of fish biology 2011
A E Magurran S Khachonpisitsak A B Ahmad

For over 150 years, ecologists have been striving to explain fundamental patterns of biological diversity, such as the observation that communities invariably consist of common and rare species, and to unravel the processes that underpin these patterns. This task is increasingly urgent given the accelerating loss of biological diversity. Although fishes are the most diverse vertebrate taxon and...

Journal: :Emerging Infectious Diseases 2000
M. Wheelis

The Biological and Toxin Weapons Convention prohibits the development, production, and stockpiling of biological weapons agents or delivery devices for anything other than peaceful purposes. A protocol currently in the final stages of negotiation adds verification measures to the convention. One of these measures will be international investigation of disease outbreaks that suggest a violation ...

ژورنال: پژوهش هنر 2020

Rock art can be regarded as one of the oldest art forms of human societies throughout history. Therefore, the study and analysis of the art of petroglyphs plays a special role in understanding social relationships, beliefs, culture and other aspects of human life. These motifs are of great importance regarding archeological studies of anthropology; anthropology and art history was of great impo...

Journal: :Animal Behaviour 2015
Stefano S.K. Kaburu Nicholas E. Newton-Fisher

Biological market theory models the action of natural selection as a marketplace in which animals are viewed as traders with commodities to offer and exchange. Studies of female Old World monkeys have suggested that grooming might be employed as a commodity to be reciprocated or traded for alternative services, yet previous tests of this grooming-trade model in wild adult male chimpanzees have ...

2001
WAYNE MINSHALL KENNETH W. CUMMINS

From headwaters to mouth, the physical variables within a river system present a continuous gradient of physical conditions. This gradient should elicit a series of responses within the constituent populations resulting in a continuum of biotic adjustments and consistent patterns of loading, transport, utilization, and storage of organic matter along the length of a river. Based on the energy e...

2009
Uldis Bojars Alexandre Passant

The SIOC project is aimed at expressing information about the structure and content of online community sites and at enabling interoperability on the Social Web using Semantic Web technologies. In this paper we briefly describe the SIOC project, introduce the SIOC Core ontology and its modules, and discuss some SIOC-based applications in terms of human and agent communication.

2008
Christoph Lange Uldis Bojārs Tudor Groza John G. Breslin Siegfried Handschuh

Among the activities that people participate in on the Social Web are argumentative discussions and decision making. This paper analyzes a series of use-cases (from the perspective of social media sites) that share the presence of such argumentative discussions and where the structure of online discussions can be represented in SIOC. Our goal is to externalize implicit argumentation structures ...

2007
Michael Hausenblas Herwig Rehatschek

Following and understanding discussions on mailing lists is a prevalent task for executives and policy makers in order to get an impression of one’s company image. However, existing solutions providing a Web-based archive require substantial manual effort to search for or filter certain information. With mle we propose a new way to automatically process mailing list archives. The tool is realis...

2017

Copyright Statement Copyright 2013 SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is theauthor-manuscript version of the following article: Deposition of SnO2 on the Anatase TiO2 {105} Facets with High Photocatalytic Performance, Chinese Journal of Chemistry, Volume 31, Issue 12, pages 1503–1507, December, 2013, which has been published in final form at http://dx.doi.org...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم انسانی 1393

this thesis aims at putting together two of the vestest areas of study there is in humanities: bioethics and literature. the two novels in question, oryx and crake and the year of the flood, are considered as some of the most succssful examples of spculative fiction. in these novels the biological and environmental issues raised as looked at from a bioethics point of view.

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