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Topic: Environment (biophysical)

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Thiol Oxidation of Actin Produces Dimers That Enhance the Elasticity of the F-Actin Network -- Tang et al. 76 (4): 2208 -- Biophysical Journal The numbers on the ordinate indicate the time in seconds for the ball to drop by 1 cm, which is proportional to the apparent viscosity of the actin network. The left lane shows, for the sample treated by air, a 90-kDa band, in addition to the 42-kDa actin band, and the right lane shows for the control sample without oxidation a single band of monomeric actin. Excess reducing agent decreases the storage modulus of aged actin to the level of fresh F-actin www.biophysj.org /cgi/content/full/76/4/2208

Joseph Ackerman Advantages of magnetic resonance for biophysical and physiologic analysis include an inherently noninvasive and nondestructive nature, an ability to provide a simultaneous multicomponent metabolic analysis with chemical identity defined via the chemical shift, and a sensitivity to subtle changes in both microscopic and macroscopic motion and local (molecular) environment. Interests: magnetic resonance techniques, spectroscopic techniques, imaging techniques, functional biophysical, physiologic events, intact biological systems, isolated cell preparations, purfused organs, laboratory animals, biophysical analysis, physiologic analysis, chemical shift, multicomponent metabolic analysis, microscopic motion, macroscopic motion The latter encompass a range of physiologic studies, for example; determination of the biophysical basis for the marked development of diffusion weighted image contrast immediately following brain injury; elucidation of the primary etiology of septic shock; and disruption of tumor biology by hyperthermia in the face of induced pH decrease and energy deficit. news-info.wustl.edu /sb/page/normal/496.html

Human environment interaction Human Environment Interaction: Human environment interactions studies therelationships between people and the biophysical settings in which they live and... Identification and characterization of gene- environment interactions will...for both human and animal studies of gene-environment interactions are of... It is here that human interaction with the geological environment is at its most intense: it is here that the practical challenges in environmental geology... www.vanchurch.com /human+environment+interaction.html

DEVELOPMENT, GLOBAL CHANGE, AND THE EPIDEMIOLOGICAL ENVIRONMENT The epidemiological environment consists of the conditions and processes, both biophysical and social, that influence the interaction between human beings and disease agents. The potential impact upon the epidemiological environment of aspects of both development and global change are then examined: the influences of human population size, mobility, geographic distribution, and nutritional status; modernization; loss of indigenous medicinal knowledge; microbial evolution of antibiotic resistance; land conversion and biodiversity loss; agricultural intensification; stratospheric ozone depletion; and climate change. Forest clearance is one of the commonest land-use changes wrought by Homo sapiens, usually occurring in connection with agriculture, and it may exert positive or negative effects on the epidemiological environment. dieoff.org /page108.htm

02-09 A new system theory of mind is presented in which mind is identified with the intercellular biophysical environment. A bicellular organism (if it exists) requires a consideration on the interaction between the two component cells interacting with each other through the intercellular space: Each component cell reacts to its environment just as a unicellular organism does and so it is understood to have no mind but a genetically driven machine. A growing and successive sequence of such overdriven changes of the multicellular organism’s self-environment is a chain reaction whose limiting point can be regarded as an image or mapping of the incident change. www.imprint-academic.demon.co.uk /T2000/02-09.html   (804 words)

Amazon.ca: Books: Sociological Theory and the Environment: Classical Foundations, Contemporary Insights Sociological Theory and the Environment, is a comprehensive survey and assessment of sociological theories of the relations between societies and their "natural" biophysical environment. I highly recommend this volume for faculty teaching environmental sociology and/or social theory, and also for those that are in need of a relatively quick yet thorough updating of the current state of theoretical approaches to the relationship between humans and the environment. Frederick H. Buttel is Professor of Rural Sociology and Environmental Studies at the University of Wisconsin, Madison. www.amazon.ca /exec/obidos/ASIN/074250185X   (804 words)

Open Positions - Department of Physiology - The University of Texas Health Science Center at San Antonio The Department of Physiology and the Barshop Institute for Longevity and Aging Studies offer a rich research environment for the study of signal transduction, endocrinology and aging. The Department of Physiology at The University of Texas Health Science Center offers a rich research environment founded on open scientific interactions among five ion channel research groups proximally located within the department. The Department of Physiology offers a rich research environment with colleagues studying nervous and cardiovascular system function, renal physiology, signal transduction, and aging. physiology.uthscsa.edu /jobs.html   (676 words)

Woken and Ironside (1977) Ecological (biophysical) land classification in urban areas: Proceedings of a workshop, Canada Committee on Ecological (Biophysical) Land Classification, 23 & 24 November 1976, Toronto, Ontario Ecological (biophysical) land classification in urban areas: Proceedings of a workshop, Canada Committee on Ecological (Biophysical) Land Classification, 23 & 24 November 1976, Toronto, Ontario Woken and Ironside (1977) Ecological (biophysical) land classification in urban areas: Proceedings of a workshop, Canada Committee on Ecological (Biophysical) Land Classification, 23 & 24 November 1976, Toronto, Ontario Ironside, G.R. Fisheries and Environment Canada, Lands Directorate (Ottawa) www.getcited.org /pub/102490197   (63 words)

University of North Carolina at Chapel Hill - Projects The hypothesized biophysical landscape trends (FIG 2) are assumed to represent key ecological conditions important to understanding human-environment interactions, and thus are to be tested,, refined and incorporated into the ecological classifications (as appropriate based on relationships established via empirical evidence and/or theoretical understanding). To be effective ecological land classification must integrate both spatial and temporal characteristics of the biophysical landscape for a given location. Based on information obtained for Objective #1, develop and implement an ecological land classification scheme (to include LULC state and summary of past changes) which specifically considers the needs of population-environment research. www.unc.edu /depts/geog/lcsal/thailand_pub5.html   (194 words)

Imagery Maps Arctic Tundra Environment Four-meter multispectral IKONOS data were incorporated into biophysical remote sensing research to study Boothia Peninsula, Nunavut, Canada, (Figure 2) to evaluate its utility for estimating biophysical properties of vegetation communities, such as biomass and percent cover. IKONOS imagery was a key element in the Boothia Peninsula biophysical research. The Boothia Peninsula research was funded through a Natural Sciences and Engineering Research Council (NSERC) Post-Graduate Scholarship (type A), NSERC Research Grant, Northern Scientific Training Program and Natural Resources Canada. www.imagingnotes.com /sepoct02/laidler.htm   (1241 words)

Touchy Proteins Because of the water environment, the electrical attractions and repulsions exerted by the molecules on each other play a significant role in the dynamics, which means these "electrostatic" properties need to be calculated in as exacting a manner as possible — adding considerable complexity to an already complex system. They rebuilt the membrane environment, to accommodate the dynamics of adding strain, with 242 lipids and 16,148 water molecules, a system of 88,097 atoms. J. Gullingsrud, D. Kosztin & K. Schulten, "Structural Determinants of MscL Gating Studied by Molecular Dynamics Simulations," Biophysical Journal, 80, 2074-81 (2001). www.psc.edu /science/schulten2001.html   (1414 words)

Joint forest management The institutional involvement in various forest protection and developmental activities has made promising impacts on the biophysical and socio-economic environment of the JFM areas. In acknowledging this factor, the Ministry of Environment and Forests, Government of India issued policy guidelines for the involvement of village communities and voluntary agencies in the regeneration of degraded forest lands on 1 June 1990 under the JFM (joint forest management) programme. Joint Forest Management is a concept of developing partnerships between fringe forest user groups and the FD (forest department) on the basis of mutual trust and jointly defined roles and responsibilities with regard to forest protection and development. www.teriin.org /jfm/jfm.htm   (1414 words)

Using Human Disease Outbreaks as a Guide to Multilevel Ecosystem Interventions During the Panama Canal construction, it is obvious (with the wisdom of ecologic hindsight) that replacing a rainforest environment with an urban/industrial environment offers the opportunity for container-breeding vector mosquitoes to proliferate and to transmit disease at a scale never before encountered in an affected area. Models have been developed to describe the way in which such interacting disruptions influence health (Parkes and Weinstein 2004), but from a biophysical perspective one of the more constructive lines of analysis is directed toward the disruption of the immediate ecosystem. During the construction of the Panama Canal in the 1880s, continuous outbreaks of yellow fever killed > 5,500 workers, or > 6% of the workforce. ehis.niehs.nih.gov /members/2004/7122/7122.html   (4519 words)

Environmental Studies: Ohio University Offered through the College of Arts and Sciences, this program supplements existing majors with an interdisciplinary study of the biophysical environment and the complex interactions between humans, other organisms, and the environment. The program is open to students in any major, but it is especially relevant for educators and those seeking environmentally related careers in government, business, law, and consulting firms. Created in 1970, the program meets the needs of students looking for a broader academic experience than a traditional course of study can provide. www.ohio.edu /envstu   (127 words)

Alphas and Taus of Tryptophan Fluorescence in Membranes -- Ladokhin and White 81 (3): 1825 -- Biophysical Journal Clearly, the chemical structure and the overall polarity of the environment of different tryptophan sidechains varies dramatically, raising doubts concerning the validity of Clayton and Sawyer's shared lifetimes assumption (Clayton and Sawyer, 1999b FIGURE 2 The structure of a fluid lipid bilayer and the environment of tryptophan sidechains along an amphipathic interfacial helix. The position and size of helix are shown to scale according to Hristova et al. www.biophysj.org /cgi/content/full/81/3/1825   (127 words)

Environmental Correlates of Leaf Stomata Density (Synopsis) Then, students design their own study to compare stomata density among leaves that differ in biophysical environment on their campuses. Ecological Topic Keywords: plant physiological ecology, biophysical ecology, environmental adaptation, stomata, photosynthesis, autecology. In this three week lab, students use the technique of making clear nail polish impressions of leaf stomata to generate and test an hypothesis of their choice about how leaf stomata density might vary under different environmental conditions. tiee.ecoed.net /vol/v1/experiments/stomata/stomata_synopsis.html   (433 words)

Open Directory - Science: Biology: Biophysics European Biophysical Societies' Association - Disseminates knowledge of the principles and applications of biophysics, and fosters the exchange of scientific information among European biophysicists. UIUC Chapter of Illinois Biophysics Society - Hopes to create an educational and friendly environment where biophysics students can keep in touch and socialize at the University of Illinois at Urbana-Champaign. British Biophysical Society - The BBS aims to promote the physical characterisation and understanding of biomolecular functions. dmoz.org /Science/Biology/Biophysics   (568 words)

Human Values as Strange Attractors: Coevolution of classes of governance principles But: "the biophysical environment evolved to one that was more fragile and more dependent on vigilance and error-free management at a time when greater dependencies had developed in the socio-economic and institutional environment for continued success" (Holling, p. At the interface or transition between them, at the "edge of chaos", the "complexity" of Class IV behaviour could emerge (Waldrop, p. It is through the conflicting pursuit of such values, and in the interpretation of rival values as "negative", that the majority of world problems are engendered. www.laetusinpraesens.org /docs/values93.php   (568 words)

University College of the Fraser Valley - UCFV Geography To this end geographers analyze elements of the physical environment and human society in order to develop an understanding of the character of places, the spatial and temporal nature of human/environment interactions and earth surface and atmospheric processes. Geography is the study of the cultural, physical, and biophysical features of the earth's surface. UCFV offers a major, an extended minor, and a minor in Geography as part of its Bachelor of Arts program. www.ucfv.bc.ca /geography   (568 words)

Commentary To me there is no sharp distinction among plant physiology, environmental plant physiology, physiological plant ecology (or ecological plant physiology), and a biophysical plant ecology. Ecology is the study of interactions of organisms with each other and with the physical environment, whereas physiology is the exploration of underlying mechanistic processes that determine how organisms work. These two views lead to a concern with the physiology of performance within the environmental limits to survival on the one hand, and the biology of survival on the other. www.science.widener.edu /~grant/courses/bio401/assignments/WhatIsPhysiologicalEcology.html   (4096 words)

Planet In Focus Environmental Film Festival 2004 Recognizing that the 'environment' is contested terrain, both as a biophysical entity and as a philosophical frame, we invite submissions of films and videos, in all genres, that critically examine the concept of 'environment' and challenge current human/nature relations. Check out our 2004 festival trailer from the crew at Cuppa Coffee Studios. The festival will screened a diversity of genres - documentaries, feature films, short drama, animation, and experimental works. www.planetinfocus.org   (4096 words)

CARC - Northern Perspectives (Volume 22, Number 1, Spring 1994) In general, the scope for contemporary environmental assessment and monitoring approaches is limited to the biophysical components and excludes the socio-cultural components of the study area. Environmental impact assessment (EIA) is one method of safeguarding the environment from adverse impacts of development projects. An EIA can be defined as a tool to predict, evaluate, and monitor the environmental impacts of particular human activities, but prediction has been a consistent problem since the inception of EIAs. www.carc.org /pubs/v22no1/know.htm   (2699 words)

Ecological Economics @ Rensselaer Economic activity is invariably dependent on natural resources, generates material wastes, and is governed by the same biophysical laws as the rest of the physical environment. Ecological economics is a systems approach with a global perspective on human resource use, economic development, and the environment. Ecological economists are concerned not only, like other economists, with efficiency and equity, but also with environmental and social sustainability. www.rpi.edu /dept/economics/www/ecologic.html   (565 words)

Biophysical Journal: Characterization of F-Actin Tryptophan Phosphorescence in the Presence and Absence of Tryptophan-Free Myosin Motor Domain The spectral energy of phosphorescence emission reports on the polarity of their immediate environment (Hershberger et al., 1980), whereas the excited state lifetime is a sensitive monitor of the local fluidity of the protein matrix (Gonnelli and Strambini, 1995). A preliminary investigation of the phosphorescence emission of G- and F-actin has shown that both the spectrum and the decay kinetics of its four Trp residues are markedly heterogeneous, suggesting that their environment varies considerably in both polarity and local flexibility (Strambini and Lehrer, 1991). Applying phosphorescence spectroscopy, we aimed to investigate the structural changes of actin during its complex formation with myosin for a better understanding of the significance of actin in the ATPase turnover and force generation. www.findarticles.com /p/articles/mi_qa3938/is_200408/ai_n9421219   (1256 words)

Center for International Earth Science Information Network GIS in Global Climate Change Research: Using GIS in the Metropolitan East Coast Climate Assessment Project, presented at the annual Environmental Systems Research Institute Users' Conference, 27-30 June 2000, San Diego, CA. Frontiers in the Application of Sub-National Data in Population, Development and Environment Research, 2003 Open Meeting of the Human Dimensions of Global Environmental Change Research Community, October 16-18, 2003, Montréal, Québec. An earlier version of this paper served as a background paper to a Population-Environment Research Network cyberseminar. www.ciesin.org /publications.html   (4172 words)

Bibliography Fernandes, João Paulo, Computers, Environment and Urban Systems, "EcoGIS/EcoSAD: A methodology for the biophysical environmental assessment within the planning process," Pergammon Press, volume 17, 1993. Agosti, M., Crivellari, F., Deambrosis, G., and Gradenigo, G., Computers, Environment and Urban Systems, "An architecture and design approach for a geographical information retrieval system to support retrieval by content and browsing," Pergammon Press, volume 17, 1993. Xu, Ping, Proceedings, CELA, "Landscape patterns of Native American ruins in the Southwest: Identifying Indian site selection with Feng-Shui," 1994. www.mit.edu /people/rajsingh/mcpsketch/bib.html   (1106 words)

uk-nonl-subs2004-02.txt The minimal model of Ca2+ dynamics is obtained via a systematic reduction of the biophysical model and its analytically obtained behaviour is shown to be in excellent agreement with the original biophysical model. Further details may be found on the website www.mcs.st-and.ac.uk (see "research in mathematics and statistics"), which includes links to the University as a whole and its attractive environment. Its basic application is the classification of dynamical systems into categories by transforming nonlinear vector fields into a standard form which is determined by their linear part; one expects that the solution sets of those dynamical systems whose vector fields lie in the same category should exhibit similar features. www.agnld.uni-potsdam.de /~shw/events/uk-nonl-subs2004-02.txt   (1106 words)

Environmental Anthropology Ecological Anthropology The Ecological Anthropology concentration in the Department of Anthropology at the University of Florida provides graduate training in anthropology with an interdisciplinary focus on human interactions with the biophysical environment. Thus, there are not any required courses within the concentration but students are expected to take a wide range of courses, in the anthropology department and beyond, on human-environment interactions. The anthropology department at UF is a four-field department with a strong tradition in applied anthropology as well, with 36 faculty and 19 affiliates. www.clas.ufl.edu /users/stepp/EcoAnth.html   (415 words)

1990, Hydrologic and Geomorphic Considerations for Silvicultural Investments on the Lower Skeena River Floodplain This report evaluates four inter-related components essential for silvicultural planning on the lower Skeena River floodplain: biophysical information, erosion potential, flooding characteristics and environment fate of herbicides. Detailed biophysical data of direct relevance to forest management on the Skeena River floodplain are presented. These data include: 1) the annual groundwater régime and its driving forces; 2) the stratigraphy of the alluvial deposits; 3) the physical characteristics of the soil; and 4) the climatic régime of both the air and soil. www.for.gov.bc.ca /hfd/pubs/Docs/Frr/Frr122.htm   (190 words)

IUCN announces new CIO He was Executive Director of the Canada Committee on Ecological Land Classification which initiated many of the ecological, integrative frameworks, approaches and principles which now form part of integrated resource planning and State of the Environment reporting at the local, regional, provincial and national levels in Canada. As Director of the Land Resources and Data Systems Branch of Environment Canada he managed the world leading Canadian Geographic Information System (CGIS). in Soil Science / Biophysical Land Classification at the University of Manitoba, Canada. www.iucn.org /info_and_news/press/imgfinal.html   (408 words)

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