Results 51 to 60 of about 3,283 (203)

On nil-McCoy rings relative to a monoid

open access: yesCogent Mathematics & Statistics, 2018
The concept of nil-M-McCoy (nil-McCoy ring relative to monoid M), which are generalizations of McCoy ring and nil-M-Armendariz rings have been introduced, and we investigate their properties.
Vahid Aghapouramin   +1 more
openaire   +1 more source

Influence of heme and pH on the oligomeric states of Brucella melitensis bacterioferritin

open access: yesActa Crystallographica Section D, EarlyView.
The oligomerization of B. melitensis bacterioferritin (BmBfr) was studied using X‐ray crystallography, size‐exclusion chromatography and thermal shift analysis. These techniques allowed the characterization of both apo and holo BmBfr, highlighting the impact of heme and pH on the oligomerization mechanism.Bacterioferritin from Brucella melitensis ...
Tanguy Scaillet   +2 more
wiley   +1 more source

Room‐temperature crystal structure of a metal‐dependent W‐formate dehydrogenase by serial synchrotron crystallography

open access: yesActa Crystallographica Section D, EarlyView.
We report a room‐temperature serial synchrotron X‐ray crystallographic structural analysis of Nitratidesulfovibrio vulgaris formate dehydrogenase AB, an enzyme that reduces CO2 to formate.Metal‐dependent formate dehydrogenases (Fdhs) are a promising research target in efforts to mitigate climate change by developing active, efficient, selective and ...
Guilherme Vilela-Alves   +7 more
wiley   +1 more source

The Coloniality of Data: Police Databases and the Rationalization of Surveillance from Colonial Vietnam to the Modern Carceral State

open access: yesThe British Journal of Sociology, EarlyView.
ABSTRACT Tracing the early adoption of computer gang databases by the Los Angeles County Sheriff's Department and the Los Angeles Police Department in the 1980s to the deployment of computationally‐assisted surveillance during the Vietnam War, this paper uses a genealogical approach to compare surveillance technologies developed across the arc of ...
Christina Hughes
wiley   +1 more source

On a McCoy-like condition for rings

open access: yes
We study rings $R$ for which whenever non-zero polynomials $f(x)$ and $g(x)$ satisfy $f(x)g(x)f(x)=0$, it implies that there is a non-zero element $r\in R$ such that $f(x)rf(x)=0$. We call such rings inner McCoy rings. We explore some examples of rings that are inner McCoy, determine relationships between the class of inner McCoy rings and some known ...
Thimmaiah, Sharang, DSouza, Raisa
openaire   +2 more sources

Does Inequality Blur Class Lines? Meritocratic Attitudes in Comparative Perspective

open access: yesThe British Journal of Sociology, EarlyView.
ABSTRACT Scholars of inequality generally find that lower‐class individuals are more skeptical of meritocratic narratives that link economic success to individual work effort. However, past research has yielded inconclusive findings about how economic inequality affects meritocratic attitudes across different class groups.
Roshan K. Pandian, Ronald Kwon
wiley   +1 more source

How much are you willing to pay to avoid lockdowns? Evidence from the real estate market

open access: yesReal Estate Economics, EarlyView.
Abstract In response to the COVID‐19 pandemic, numerous countries implemented lockdowns. In Victoria, Australia, a unique two‐tier system was employed, segregating areas with a Ring of Steel boundary and imposing additional restrictions within. This study focuses on the impact of lockdowns on housing prices and rents, exploring whether people are ...
Jian Liang, Chyi Lin Lee, Qiang Li
wiley   +1 more source

Assessing the Presence, Pattern, and Environmental Correlates of Seasonal Skin Thickening in Anurans

open access: yesIntegrative Zoology, EarlyView.
Histological sections, like that of the ventral pectoral skin of Lithobates pipiens, were measured to assess variation in skin thickness throughout the year in three North American anuran species. After correcting for individual body size, we test whether skin thickness changes throughout the year and which factors (environment or life history) explain
Collin S. VanBuren   +3 more
wiley   +1 more source

Burrow Persistence and Spatial Distribution of Federally and State‐Protected Gopher Tortoise (Gopherus polyphemus) Populations in Southwest Alabama

open access: yesAnimal Conservation, EarlyView.
The gopher tortoise (Gopherus polyphemus), a keystone species and ecosystem engineer, has declined by ~80% over the past century due to primarily habitat loss. In a 28‐year resurvey of federally protected Mobile County and state‐protected Baldwin County, we found tortoise populations persisted at ~59% and ~31% of sites, respectively, with significant ...
Robin B. Lloyd Jr.   +4 more
wiley   +1 more source

Common Food Emulsifiers Impair Epithelial Barrier Integrity and Trigger Pro‐Inflammatory Responses and IgE Production

open access: yesAllergy, EarlyView.
Soy lecithin and DATEM, the two commonly used food emulsifiers introduced into many foods including peanut butter and puffed bread, in the 2000s, impair intestinal epithelial barrier integrity in human gut‐on‐a‐chip and induced pluripotent stem cell colon organoid models.
Duygu Yazici   +22 more
wiley   +1 more source

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