Results 11 to 20 of about 1,222,932 (294)

Pharmaceutical pollution of the world’s rivers

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2022
Significance Despite growing evidence of the deleterious effects on ecological and human health, little is known regarding the global occurrence of pharmaceuticals in rivers.
J. Wilkinson   +126 more
semanticscholar   +1 more source

More than 1000 rivers account for 80% of global riverine plastic emissions into the ocean

open access: yesScience Advances, 2021
More than 1000 rivers account for most plastic emissions, ranging from small urban drains to large rivers. Plastic waste increasingly accumulates in the marine environment, but data on the distribution and quantification of riverine sources required for ...
L. Meijer   +4 more
semanticscholar   +1 more source

Rivers as Plastic Reservoirs

open access: yesFrontiers in Water, 2022
Land-based plastic waste, carried to the sea through rivers, is considered a main source of marine plastic pollution. However, most plastics that leak into the environment never make it into the ocean.
T. V. van Emmerik   +4 more
semanticscholar   +1 more source

The missing ocean plastic sink: Gone with the rivers

open access: yesScience, 2021
No missing sink Estimates of the flux of microplastics from rivers, in the context of the mass of plastic that has been observed in the ocean, have made it appear that a large, unidentified sink of plastics must exist there. Weiss et al.
Lisa Weiss   +7 more
semanticscholar   +1 more source

Light and flow regimes regulate the metabolism of rivers

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2022
Significance This paper provides a comprehensive analysis of the annual patterns of ecosystem productivity and respiration for more than 200 rivers, comparing the magnitude and phenology of river metabolic regimes with annual estimates from more than 150
E. Bernhardt   +18 more
semanticscholar   +1 more source

Clinical and epidemiological characteristics of 646 hospitalised SARS-Cov-2 positive patients in Rivers State Nigeria: a prospective observational study

open access: yesThe Pan African Medical Journal, 2021
INTRODUCTION: the knowledge of epidemiologic and clinical variables in patients with SARS- CoV-2 infection provides evidence and lessons that are useful for the pandemic response, with consideration of National and sub-National variations.
Datonye Alasia   +14 more
doaj   +1 more source

A comparison of geographic datasets and field measurements to model soil carbon using random forests and stepwise regressions (British Columbia, Canada)

open access: yesGIScience & Remote Sensing, 2017
We used geographic datasets and field measurements to examine the mechanisms that affect soil carbon (SC) storage for 65 grazed and non-grazed pastures in southern interior grasslands of British Columbia, Canada.
Heather J. Richardson   +3 more
doaj   +1 more source

24. Developing and Validating an Instrument for Student Ratings of Teaching

open access: yesCollected Essays on Learning and Teaching, 2013
In May 2007, the Thompson Rivers University Faculty of Science established an ad hoc subcommittee to develop a new student ratings of teaching survey.
Gary Alan Hunt   +3 more
doaj   +1 more source

Analysis of Indoor Radon Level and its Health Risks Parameters in Three Selected Towns in Port Harcourt, Rivers State, Nigeria

open access: yesJournal of Nigerian Society of Physical Sciences, 2021
Analysis of indoor radon level and its health risk parameters has been carried out in Borikiri (BT), Diobu (DR), and Rebisi (RB) towns in Port Harcourt, Rivers State, Nigeria.
Orlunta Aloysius Ndubisi   +3 more
doaj   +1 more source

COVID-19 Vaccination: Infectivity and Symptomaticity of SARS- COV-2 among residents in Bonny Island, Rivers State, Nigeria

open access: yesIbom Medical Journal, 2023
Background: In December 2019, the severe acute respiratory syndrome Coronavirus 2 (SARS-COV-2) popularly called COVID-19 emerged. The disease is associated with asymptomatic, mild to severe respiratory symptoms.
Ogbondah BO   +5 more
doaj   +1 more source

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