Results 21 to 30 of about 810 (91)

Central Armendariz rings [PDF]

, 2011
We introduce the notion of central Armendariz rings which are a generalization of Armendariz rings and investigate their properties. We show that the class of central Armendariz rings lies strictly between classes of Ar- mendariz rings and abelian rings.
Husna Zayadi
core   +3 more sources

Globalization, internal migration, and public goods provision in emerging economies

American Journal of Political Science, EarlyView.
Abstract Globalization can introduce new employment opportunities to emerging economies in multinational corporations and exporting firms. Who is best positioned to benefit, and what are the political consequences for “left behind” areas? We argue that primarily advantaged groups seize these opportunities through internal migration toward centers of ...
Benjamin Helms, Junghyun Lim
wiley   +1 more source

Quasi-Armendariz rings relative to a monoid [PDF]

, 2007
For a monoid M, we introduce M-quasi-Armendariz rings which are a generalization of quasi-Armendariz rings, and investigate their properties. The M-quasi-Armendariz condition is a Morita invariant property. The class of M-quasi-Armendariz rings is closed
Hashemi, Ebrahim
core   +1 more source

Leveraging the TabPFN Algorithm for High‐Resolution Mapping of Groundwater Bicarbonate and Its Scaling Risk Across China

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Large‐scale groundwater quality prediction is often constrained by sparse sampling, limiting the reliability of spatial assessments. This study introduces Tabular Prior‐data Fitted Network (TabPFN), a machine learning model based on prior‐fitting networks, to address this challenge and enable high‐precision mapping of groundwater bicarbonate ...
Tong Sun, Fubin Zhang, Li He, Yanan Tian, Yao Wang, Haochuan Guo, Xiao Liu, Mengxi He, Quanzhou Li   +8 more
wiley   +1 more source

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

Journal 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, R. R. Dickerson, P. Stratton, H. He, X. Ren, A. R. Koss, W. A. Brewer, S. Baidar, B. Hmiel, D. Bon, G. Pierce, P. Weibring, D. Richter, J. Walega, M. C. Ngulat, A. Santos, A. L. Hodshire, T. L. Vaughn, D. Zimmerle, A. Fried   +19 more
wiley   +1 more source

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

International 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

Reproduction 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, Ayse Arzu Yigit, Ruhi Kabakci   +2 more
wiley   +1 more source

RINGS OVER WHICH COEFFICIENTS OF NILPOTENT POLYNOMIALS ARE NILPOTENT [PDF]

, 2011
Antoine studied conditions which are connected to the question of Amitsur of whether or not a polynomial ring over a nil ring is nil, observing the structure of nilpotent elements in Armendariz rings and introducing the notion of nil-Armendariz rings ...
TAI KEUN KWAK, YANG LEE
core   +1 more source

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

Journal 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, Jiaqi Wang, Ansje J. Löhr, Frank G. A. J. Van Belleghem, Budi Widianarko, Ad M. J. Ragas   +5 more
wiley   +1 more source

On quasi-Armendariz properties on skew polynomial rings [PDF]

, 2013
This paper deals with the quasi-Armendariz ring in general setting. We generalize the notions of quasi-Armendariz and α-skew Armendariz ring to quasi α-Armendariz and quasi α-skew Armendariz ring and investigate their properties.
Hamideh Pourtaherian, Isamiddin S. Rakhimov, Pourtaherian, Hamideh, Rakhimov, Isamiddin Sattarovich   +3 more
core   +1 more source