Results 41 to 50 of about 300,701 (162)

Methane and Ethane Emission Rates, Intensities, and Trends: Aircraft Mass Balance Insights Over the Denver‐Julesburg Basin, Fall 2021

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract Despite a 2.1‐fold increase in oil and gas (O&G) production from 2012 to 2021 in the Wattenberg Field (WF) area of the Denver‐Julesburg Basin (DJB), total methane (CH4) emissions have remained unchanged within measurement uncertainties (26.0 ± 6.8 t/hr in 2012, 24.0 ± 5 t/hr in 2015, and 21.4 ± 5.7 t/hr in 2021), while ethane (C2H6) emissions ...
H. M. Daley   +19 more
wiley   +1 more source

Democratic Decline and Return Migration: What Motivates Highly‐Skilled Voluntary Return to Post‐2016 Turkey?

open access: yesInternational Migration, Volume 64, Issue 2, April 2026.
ABSTRACT Migration scholars often present democratic decline as an emigration driver. This effect is more pronounced among highly‐skilled citizens who have the resources and capability to settle abroad. Yet, not much attention has been paid to why highly‐skilled emigrants would opt to return to their autocratizing countries, even if they are concerned ...
Gülay Türkmen
wiley   +1 more source

Endocrine Disruptive Effects of the Herbicides Linuron, Chloridazon and Metribuzin on Bovine Granulosa Cells

open access: yesReproduction in Domestic Animals, Volume 61, Issue 4, April 2026.
ABSTRACT Linuron, chloridazon and metribuzin are herbicides thought to have potential endocrine disruption (ED) effects. This study investigated the effects of linuron, chloridazon and metribuzin on bovine granulosa cell viability and oestrogen (E2) and progesterone (P4) secretion in vitro.
Metehan Eser Kahveci   +2 more
wiley   +1 more source

TRIANGULAR MATRIX REPRESENTATIONS OF SKEW MONOID RINGS [PDF]

open access: yes, 2010
Let R be a ring and S a u.p.-monoid. Assume that there is a monoid homomorphism α : S → Aut (R). Suppose that α is weakly rigid and lR(Ra) is pure as a left ideal of R for every element a ∈ R.
Zhongkui, Liu, Xiaoyan, Yang
core   +1 more source

Assessing Age‐Specific Variability in Microplastic Intake Through Seafood Consumption: A Case Study in Central Java, Indonesia

open access: yesJournal of Food Science, Volume 91, Issue 3, March 2026.
ABSTRACT Microplastics (MPs) are frequently detected in seafood. However, the extent to which seafood consumption contributes to MP intake remains uncertain. Previous studies on MP intake in humans did not consider interindividual variability in exposure.
Inneke Hantoro   +5 more
wiley   +1 more source

Armendariz and Reduced Rings

open access: yesCommunications in Algebra, 2004
Abstract A ring R is called Armendariz if, whenever in R[x], a i b j  = 0 for all i and j. In this paper, some “relatively maximal” Armendariz subrings of matrix rings are identified, and a necessary and sufficient condition for a trivial extension to be Armendariz is obtained. Consequently, new families of Armendariz rings are presented.
Lee, T.-K., Zhou, Y.
openaire   +1 more source

Prevalence of Adverse Events in Mexico Using the Institute for Healthcare Improvement—Global Trigger Tool Method: A Retrospective Study

open access: yesJournal of Evaluation in Clinical Practice, Volume 32, Issue 2, March 2026.
ABSTRACT Rationale Globally, adverse events (AEs) are a major contributor to mortality, often arising from healthcare management rather than patients' underlying conditions. Aims and Objectives This study aimed to estimate the prevalence of AEs in three different hospitals in central‐north Mexico using the Institute for Healthcare Improvement Global ...
Luis Meave Gutierrez‐Mendoza   +2 more
wiley   +1 more source

Armendariz Semirings and Semicommutative Semirings [PDF]

open access: yes, 2021
In this paper we study Armendariz semiring, which has been introduced by V.Gupta and P.kumar, in the paper entitled `Armendariz and qusi-Armendariz and PS-semirings' [8].
Sinha, Dharitri, Molla, Md Salim Masud
core   +2 more sources

SOME EXAMPLES OF ARMENDARIZ RINGS [PDF]

open access: yes, 2017
We construct various examples of Armendariz and related rings by reviewing and extending some results concerning the structure of monoid M. In particular, we give some examples of Armendariz rings related to a monoid.
Ali, Eltiyeb, Elshokry, Ayoub
core   +2 more sources

Nutrient Peak Shifts in the Arctic: Implications for Migratory Herbivores Under Climate Change

open access: yesJournal of Biogeography, Volume 53, Issue 2, February 2026.
ABSTRACT Aim Quantifying how the timing and spatial variability of Arctic vegetation nutrient peaks are projected to shift under climate change, and assessing potential consequences for migratory herbivores that rely on seasonal synchrony with peak plant quality. Location Circumpolar Arctic, with emphasis on tundra regions.
Nomikos Skyllas   +4 more
wiley   +1 more source

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