Results 31 to 40 of about 21,199,011 (380)

Per- and polyfluoroalkyl substances in the environment

Science, 2022
Over the past several years, the term PFAS (per- and polyfluoroalkyl substances) has grown to be emblematic of environmental contamination, garnering public, scientific, and regulatory concern.
Marina G Evich, Mary J. B. Davis, James P. McCord, Brad Acrey, Jill A. Awkerman, D. Knappe, A. Lindstrom, T. Speth, C. Tebes-Stevens, M. Strynar, Zhanyun Wang, E. J. Weber, W. M. Henderson, J. Washington   +13 more
semanticscholar   +1 more source

Network topology drives population temporal variability in experimental habitat networks

Population Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu, J. Angus Webb, William D. Bovill, Elise L. King   +3 more
wiley   +1 more source

Environment-induced dynamical chaos [PDF]

, 2000
We examine the interplay of nonlinearity of a dynamical system and thermal fluctuation of its environment in the ``physical limit'' of small damping and slow diffusion in a semiclassical context and show that the trajectories of c-number variables ...
A.J. Leggett, A.K. Pattanayak, B.C. Bag, B.C. Bag, Bidhan Chandra Bag, C.M. Bender, D.G. Luchinsky, Deb Shankar Ray, G. Gangopadhyay, G.W. Ford, M. Battezzati, M.D. Reid, M.D. Reid, M.E. Goggin, P. Meystre, R. Graham, T. Dittrich, T. Dittrich, W.A. Lin, W.H. Louisell, W.H. Zurek, W.H. Zurek   +21 more
core   +2 more sources

5G Opportunities in the South Pacific: Leveraging Low-Band Spectrum for Socio-Economic Development

HighTech and Innovation Journal
This paper explores the potential for deployment of 5G communication in the South Pacific, with a particular focus on leveraging the low-band spectrum for socio-economic development.
Satyanand Singh, Pragya Singh, Joanna Rosak-Szyrocka, Laszlo Vasa   +3 more
doaj   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

Population Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

The evaluation of national accounting matrices with environmental accounts (NAMEA) as a methodology for carrying out a sustainability assessment of the Scottish food and drink sector [PDF]

, 2009
This report introduces environmental input-output (IO) accounts for Scotland as an example of a NAMEA framework. It provides an introduction to the use of basic IO multiplier methodology, which can be applied to examine pollution/waste generation and/or ...
Scottish Environment Protection Agency (Funder), Turner, Karen   +1 more
core  

Environmental hazard assessment of the Uluk-Bar gold deposit (Southern Urals)

Известия Томского политехнического университета: Инжиниринг георесурсов
Relevance. Due to the maximum allowable concentrations of heavy metals and metalloids exceeding in the surface waters of the Avzyan gold region, possible sources of toxic elements are determined, which is important for combating pollution in ore areas ...
Gulfiya M. Kazbulatova, Sergey V. Michurin   +1 more
doaj   +1 more source

Pharmaceuticals in the environment [PDF]

Environmental Science and Pollution Research, 2016
Pharmaceuticals gather more than 1000 biologically active molecules used in human and veterinary medicine around the world. The increase in drugs’ consumption and the development of improved analytical environmental techniques have resulted in identifying these emerging pollutants in all aquatic compartments, ranging from surface water and groundwater ...
Halm-Lemeille, Marie-Pierre, Gomez, Elena   +1 more
openaire   +4 more sources

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

Population Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

Associations of heart rates and respiratory rates with lifestyle and environmental factors in toddlers: a nationwide cohort study

BMC Pediatrics
Background Heart rate (HR) and respiratory rate (RR) are key vital signs, yet few large studies have reported their normal values in toddlers. We thus assessed HR and RR in two-year-old Japanese children.
Keita Kanamori, Tomohisa Suzuki, Chiharu Ota, The Japan Environment Children’s Study Group   +3 more
doaj   +1 more source