Results 11 to 20 of about 350,769 (77)
, 1970 The theory of near-rings has arisen in a variety of ways. There is a natural desire to generalise the theory of rings and skew fields by relaxing some of their defining axioms.
Holcombe, William Michael Lloyd
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On weakened $(\alpha ,\delta )$-skew Armendariz rings
, 2022 summary:In this note, for a ring endomorphism $\alpha $ and an $\alpha $-derivation $\delta $ of a ring $R$, the notion of weakened $(\alpha ,\delta )$-skew Armendariz rings is introduced as a generalization of $\alpha $-rigid rings and weak Armendariz ...
Tavallaee, Hamidagha +3 more
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Ibis, Volume 165, Issue 2, Page 587-601, April 2023., 2023 Mining is present in all major biomes worldwide and overlaps strongly with areas of importance for bird conservation. Mining causes multiple types of environmental disturbance, including habitat alteration, increased human presence and persistent heavy metal pollution. Feather coloration and fluctuating asymmetry (random deviation from perfect symmetry
Lynna Marie Kiere +5 more
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On primitive ideals in graded rings [PDF]
, 2008 Let R = circle plus(infinity)(i=1) Ri be a graded nil ring. It is shown,that primitive ideals in R are homogeneous. Let A = circle plus(infinity)(i=1) Ai be a graded non-PI just-infinite dimensional algebra and let I be a prime ideal in A.
Smoktunowicz, Agata
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Alpha - Skew Pi - Armendariz Rings
, 2018 In this article we introduce a new concept called Alpha-skew Pi-Armendariz rings (Alpha - S Pi - AR)as a generalization of the notion of Alpha-skew Armendariz rings.Another important goal behind studying this class of rings is to employ it in order to ...
Ajaj, Ahmed M +3 more
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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
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Management coverage and spatial gaps for carnivore habitat across Mexico
Conservation Science and Practice, Volume 8, Issue 9, September 2026.We evaluated the spatial overlap between four land management types and the habitat of 28 terrestrial carnivores in Mexico. Our findings reveal that non‐designated land management types like Indigenous Territories may provide significant habitat coverage, and that significant coverage gaps for carnivores remain.
Germar González, Nyeema C. Harris
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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 +8 more
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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 +19 more
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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
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