Results 31 to 40 of about 20,635,287 (367)

Community Structure and Crime: Testing Social-Disorganization Theory

open access: yesAmerican Journal of Sociology, 1989
Shaw and McKay's influential theory of community social disorganization has never been directly tested. To address this, a community-level theory that builds on Shaw and McKay's original model is formulated and tested.
Robert J. Sampson, W. B. Groves
semanticscholar   +1 more source

Food Waste Composting and Microbial Community Structure Profiling

open access: yes, 2020
Over the last decade, food waste has been one of the major issues globally as it brings a negative impact on the environment and health. Rotting discharges methane, causing greenhouse effect and adverse health effects due to pathogenic microorganisms or ...
Kishneth Palaniveloo   +11 more
semanticscholar   +1 more source

Structural Communication

open access: yes, 2002
The communication of structure in musical expression has been studied scientifically by analyzing variations in timing and dynamics in expert performances, and by analysis by synthesis. The underlying principles have been extracted, and models of the relationship between expression and musical structure formulated.
Friberg, Anders, Battel, G. U.
openaire   +3 more sources

Distribution of Meiofauna in Bathyal Sediments Influenced by the Oxygen Minimum Zone Off Costa Rica

open access: yesFrontiers in Marine Science, 2018
Ocean deoxygenation has become a topic of increasing concern because of its potential impacts on marine ecosystems, including oxygen minimum zone (OMZ) expansion and subsequent benthic effects.
Carlos Neira   +4 more
doaj   +1 more source

Resilience of networks with community structure behaves as if under an external field [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance Much work has focused on phase transitions in complex networks in which the system transitions from a resilient to a failed state. Furthermore, many of these networks have a community structure, whose effects on resilience have not yet been ...
Gaogao Dong   +8 more
semanticscholar   +1 more source

Florística e fitossociologia do componente arbóreo de uma floresta ribeirinha, arroio Passo das Tropas, Santa Maria, RS, Brasil Floristic composition and structure of arboreal species in a riverine forest, Passo das Tropas River, Santa Maria, RS, Brazil

open access: yesActa Botânica Brasílica, 2004
Florestas ribeirinhas são caracterizadas por alta heterogeneidade ambiental, onde diferentes fatores físicos e bióticos regulam o mosaico vegetacional. Embora sejam áreas prioritárias à conservação, devido a sua fragilidade e importância, poucos estudos ...
Jean Carlos Budke   +4 more
doaj   +1 more source

Community Structure in Time-Dependent, Multiscale, and Multiplex Networks [PDF]

open access: yesScience, 2009
Network Notation Networks are often characterized by clusters of constituents that interact more closely with each other and have more connections to one another than they do with the rest of the components of the network.
P. Mucha   +4 more
semanticscholar   +1 more source

Seasonal and altitudinal variations in snow algal communities on an Alaskan glacier (Gulkana glacier in the Alaska range)

open access: yesEnvironmental Research Letters, 2013
Snow and ice algae are cold tolerant algae growing on the surface of snow and ice, and they play an important role in the carbon cycles for glaciers and snowfields in the world.
Nozomu Takeuchi
doaj   +1 more source

Community structure and diversity of demersal fish assemblages: the role of fishery

open access: yesScientia Marina, 2004
Seasonal experimental trawl surveys were carried out in the Northern Aegean and Thracian seas (NE Mediterranean, Greece), from summer 1990 to autumn 1993, during which a total of 172 fish species were caught. In these areas, fishing pressure is very high,
Mary Labropoulou   +1 more
doaj   +1 more source

Predacious activity of Ants (Hymenoptera: Formicidae) in conventional and in No-till agriculture systems

open access: yesBrazilian Archives of Biology and Technology, 2008
This study had the objective of assessing the differences in foraging activity of the predacious ants between two areas, one conventional and other with no-till agriculture systems. The research was conducted in two contiguous 1.5 ha plots in Dourados MS,
Denise Lange   +3 more
doaj   +1 more source

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