Buscar recursos académicos

Hibernation and daily torpor are two distinct forms of torpor, and although they are related, it is not known how and in which sequence they evolved. As the pattern of torpor expressed by the oldest marsupial order the o...

Abstract Selenoproteins incorporate the rare selenium-containing amino acid selenocysteine (Sec) and play crucial roles for redox homeostasis, stress response, and hormone regulation. Sec is inserted by co-translational ...

Abstract Industrial emissions are significant contributors to global air pollution, particularly with respect to PM2.5 and CO2 emissions. It remains one of the most pressing environmental challenges globally, driven larg...

Inflorescence forms in grasses lead to a general assumption that their evolution is random. We reconstructed the ancestral inflorescence for Poaceae subtribe Eleusininae and outlined possible evolutionary pathways to tes...

Twenty-five years after its last major reform, the World Bank is embarking on a wide review of its mission, operational procedures and financial mechanisms. However, the current proposal runs the risk of failing to deliv...

Despite having >1200 described species and despite their nearly worldwide distribution and prevalence in many xeric ecosystems, relative to many other arachnid groups, we know little about the natural history and behavio...

Abstract Background Knee osteoarthritis (OA) is a leading global cause of disability, yet conventional tools lack sensitivity for early detection and precise prognostication. Artificial intelligence (AI) and machine lear...

"Various tools for program analysis, including run-time assertion checkers and static analyzers such as verification and test generation tools, require formal specifications of the programs being analyzed. Moreover, many...

Context. Water ice is expected to be the dominant volatile component of bodies formed in the outer Solar System. However, recent observations of comets and trans-Neptunian objects suggest that the relative abundances of ...

In the Sichuan Basin, the activity of the Huayingshan fault significantly affects the structural evolution of the sedimentary cover and promotes the formation of oil and gas fields, but further research is needed on its ...

Background The role of human lineage mutations (HLMs) in human evolution through post-transcriptional modification is unclear.Aims To investigate the contribution of HLMs to human evolution through post-transcriptional m...

Abstract Freshwater adaptation from marine ancestors represents a major ecological transition in teleost evolution, yet its genomic basis remains poorly understood. The genus Brachirus is predominantly marine, although a...

Homogenizationmodels are widely used to predict the evolution of texture (crystal preferred orientations) and resulting anisotropy of physical properties in metals, rocks, and ice. They fail, however, in predicting two m...

"We study a modification of the Evolutionary Minority Game (EMG) in which agents are placed in the nodes of a regular or a random graph. A neighborhood for each agent can thus be defined and a modification of the usual r...

Abstract Background Comparative genomics and plastome phylogenomics have advanced significantly in recent years, highlighting the diversity, possible admixture, and non-neutral evolution of the predominantly considered n...

Multiple studies had been conducted to improve the geological understanding and enrichment patterns of the Wufeng-Longmaxi Formation in the southeastern Sichuan Basin’s complex tectonic belt. However, the influence of ...

Reproductive strategies can be inferred from adult body mass, although offspring characteristics can give more accurate tools to predict life histories. In fossil mammals, adult body mass estimation incorporates error to...

Animal promoters initiate transcription either at precise positions (narrow promoters) or dispersed regions (broad promoters), a distinction referred to as promoter shape. Although highly conserved, the functional proper...

Educators in the life sciences can be challenged by students who disagree with Darwin’s theory of evolution. This article analyses the history of Creationist’s attempts to introduce alternative explanations to Darwin...

"Data warehouses (DWs) evolve in both their content and schema due to changes of user requirements, business processes, or external sources to name a few. Although multiple approaches using temporal and/or multiversion D...

The most compelling models concerning the peopling of the Americas consider that modern Amerindians share a common biological pattern, showing affinities with populations of the Asian Northeast. The aim of the present st...

"There is recent evidence that the core of the Internet, which was formerly dominated by large transit providers, has been reshaped after the transition to a multimedia-oriented network, first by general-purpose CDNs and...

Abstract We study the influence of the instantaneous appearance of a conformal Killing vector (CKV) in self-gravitating fluid spheres during their evolution. For doing that we introduce a tensor variable whose time depen...

Abstract The unambiguous identification of individual chromosomes is fundamental to studying genome organisation and evolution. Sheepgrass (Leymus chinensis (Trin.) Tzvel), a perennial tetraploid grass closely related to...