Results 21 to 30 of about 4,380,023 (312)

Birch allergen challenges in allergic conjunctivitis using standard conjunctival allergen challenge and environmental exposure chamber

open access: yesClinical and Translational Allergy, 2021
Background Environmental exposure chambers (EECs) have been used extensively to study allergic rhinoconjunctivitis. Few studies have been published using EECs in conjunctivitis only, and none have used conjunctival allergen challenge as a selection ...
Alina Gherasim   +4 more
doaj   +1 more source

Stemness of Normal and Cancer Cells: The Influence of Methionine Needs and SIRT1/PGC-1α/PPAR-α Players

open access: yesCells, 2022
Stem cells are a population of undifferentiated cells with self-renewal and differentiation capacities. Normal and cancer stem cells share similar characteristics in relation to their stemness properties.
Youssef Siblini   +4 more
doaj   +1 more source

Distribution and Causes of Global Forest Fragmentation

open access: yesEcology and Society, 2003
Because human land uses tend to expand over time, forests that share a high proportion of their borders with anthropogenic uses are at higher risk of further degradation than forests that share a high proportion of their borders with non-forest, natural ...
Timothy G. Wade   +3 more
doaj   +1 more source

High-throughput toxicogenomic screening of chemicals in the environment using metabolically competent hepatic cell cultures

open access: yesnpj Systems Biology and Applications, 2021
The ToxCast in vitro screening program has provided concentration-response bioactivity data across more than a thousand assay endpoints for thousands of chemicals found in our environment and commerce.
Jill A. Franzosa   +12 more
doaj   +1 more source

Extending the Community Multiscale Air Quality (CMAQ) modeling system to hemispheric scales: overview of process considerations and initial applications [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
The Community Multiscale Air Quality (CMAQ) modeling system is extended to simulate ozone, particulate matter, and related precursor distributions throughout the Northern Hemisphere.
R. Mathur   +11 more
doaj   +1 more source

Developing a general population job-exposure matrix in the absence of sufficient exposure monitoring data. [PDF]

open access: yes, 2011
In New Zealand, there is a need for a comprehensive and accessible database with national occupational exposure information, such as a general population job-exposure matrix (GPJEM).
McLean, Dave J   +6 more
core   +1 more source

Lead levels of new solvent-based household paints in Zimbabwe and Botswana: A preliminary study

open access: yesAfrican Journal of Primary Health Care & Family Medicine, 2022
Background: Lead paint remains a major potential source of lead poisoning globally, but there has been no documentation on lead content in solvent paints available on the markets in Zimbabwe and Botswana.
Rose A. Kambarami   +6 more
doaj   +1 more source

Short-Term Transcriptomic Points of Departure Are Consistent with Chronic Points of Departure for Three Organophosphate Pesticides across Mouse and Fathead Minnow

open access: yesToxics, 2023
New approach methods (NAMs) can reduce the need for chronic animal studies. Here, we apply benchmark dose (concentration) (BMD(C))–response modeling to transcriptomic changes in the liver of mice and in fathead minnow larvae after short-term exposures (7
Rubia Martin   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy