Buscar recursos académicos

Abstract We explore a cosmological framework in which a Gauss–Bonnet (GB) coupled scalar field, acting as dark energy, interacts with a fermionic dark matter field through a coupling obtained from the point of view of ...

The study of the structure of compact objects in modified theories of gravity can be useful to constrain f(R)-theories in the strong gravitational regime. In particular, the structure of compact stars inthe theory with L...

A comprehensive structural, petrological, and geophysical study of the 385 ± 2 Ma Devonian El Hornito Pluton (EHP) in the Sierra Grande de San Luis, Argentina, is presented. We establish that the EHP results from the in...

The organic matter is an important symbol of peaty soil which is different from soft clay. The content of organic matter directly affects the physiochemical properties of peaty soil, and further affects its consolidation...

Abstract We have executed a series of simulations with the NASA Ames Mars Global Climate Model by systematically increasing horizontal and vertical resolution with the goal of resolving small‐scale waves that significa...

The basic aim of the research is to investigate the impacts of research and development (R&D) on manufacturing trade. Six hypotheses are tested. The focus is on possible non-linear effect of R&D on trade flows and whethe...

The world expansion of trade in manufactured goods has been more dynamic than production over the last 25 years. The greater trade openness was due more to the growth of extra-regional trade than to intra-regional trade....

We study a topological phase transition in spacetime through which the early universe evolved, growing exponentially due to quantum fluctuations of gravity, described as a geometric quantum field with a noncommutative, n...

IntroductionHuman space exploration is progressing into an unprecedented era characterized by extended-duration missions, the establishment of permanent lunar bases, and planned crewed voyages to Mars. These activities i...

Abstract The global 3‐dimensional structure of the concentric traveling ionospheric disturbances (CTIDs) triggered by 2022 Tonga volcano was reconstructed by using the 3‐dimensional computerized ionospheric tomograph...

O trabalho foi realizado com o objetivo de determinar os valores nutricionais de milhos de quatro qualidades, obtidos por meio de estratificação em mesa densimétrica, para frangos de corte em diferentes idades. Os mil...

Unravelling the orogenic structure of the Sierra Grande de San Luis (Argentina) is essential to understand the geological evolution of the Famatinian orogen and the western margin of Gondwana. However, its structural org...

Abstract This study presents a novel hybrid methodology combining machine learning (ML) with conventional reservoir simulation to optimize waterflooding in the geologically complex Bahariya Formation, Western Desert, Egy...

Abstract Background Chronic kidney disease (CKD) frequently causes death in older cats; its early detection is challenging. Objectives To build a sensitive and specific model for early prediction of CKD in cats using art...

Abstract Background Lymphoma has been implicated as a possible cause of proteinuria in dogs. However, information about the potential importance of proteinuria in dogs with lymphoma is limited. Hypothesis To determine if...

Conduziu-se um experimento com o objetivo de avaliar o desempenho e a qualidade dos ovos de codornas de corte de dois grupos genéticos durante 84 dias de experimento. Utilizaram-se 98 aves com média de peso equivalente...

Lymphocytic Infundibulo-Neurohypophysitis (LINH) is a rare autoimmune inflammatory disorder selectively involving the posterior pituitary and stalk, commonly presenting as Central Diabetes Insipidus (CDI). Due to its non...

The objective of this study was to compare fattening performance, carcass traits, and egg quality of Japanese quails with different feather colors (white, dark brown, golden, and wild-type). In the study, 360 one-day-old...

The dipole-dominated magnetic fields of Jupiter and Saturn provide evidence for active dynamos operating within their deep interiors, yet the depth of the convecting dynamo layers remains poorly constrained. While magnet...

This paper aims to estimate the impact of ICT and technological development of countries on supply chain trade. As proxy measures of supply chain trade, the author applies domestic value added (DVAFX) included in gross...

We investigate the down-hill creep of a layer of granular material on a slope caused by an oscillatory variation of the size of the particles. The material is modeled as an athermal two dimensional polydisperse system of...

Agricultural innovation represents a critical pathway for achieving land ecological security under intensifying environmental pressures, yet how agricultural innovation drives land ecological security across spatial scal...

Abstract Concrete production’s environmental impact has driven the use of supplementary cementitious materials like sawdust ash (SDA) and admixtures such as Conplast to enhance sustainability and performance. This stud...

Gravity Water Vortex Turbines (GWVTs) are a new category of turbines used in micro-hydro power plants (MHPs). GWVTs can be used to optimize existing water flow potential, aerate water bodies, and maintain ecosystem integ...