Search
Now showing items 31-40 of 1077
Students’understanding of the concept of the electric field through conversions of multiple representations
(American Physical Society, 2020-06-04)
We conducted a study with introductory and upper-division level physics students in a Mexican and a Spanish university to learn how students recognize the main characteristics of the electric field in three of its more ...
The Y-chromosome of the Soliga, an ancient forest-dwelling tribe of South India
(Elsevier, 2020)
A previous autosomal STR study provided evidence of a connection between the ancient Soliga tribe at the southern tip of the Indian subcontinent and Australian aboriginal populations, possibly reflecting an eastbound coastal ...
Ready Access to Molecular Rotors Based on Boron Dipyrromethene Dyes-Coumarin Dyads Featuring Broadband Absorption
(MDPI, 2020-02-12)
Herein we report on a straightforward access method for boron dipyrromethene dyes (BODIPYs)-coumarin hybrids linked through their respective 8- and 6- positions, with wide functionalization of the coumarin fragment, using ...
An atlas of O-linked glycosylation on peptide hormones reveals diverse biological roles
(Nature, 2020-08-20)
Peptide hormones and neuropeptides encompass a large class of bioactive peptides that regulate physiological processes like anxiety, blood glucose, appetite, inflammation and blood pressure. Here, we execute a focused ...
Effect of Bacterial Nanocellulose Binding on the Bactericidal Activity of Bovine Lactoferrin
(Elsevier, 2020-07)
Bovine lactoferrin (bLF) has been extensively described as a wide spectrum antimicrobial protein. bLF bactericidal activity has been mainly attributed to two different mechanisms: environmental iron depletion and cell ...
Disruption of Oligodendrocyte Progenitor Cells is an Early Sign of Pathology in the Triple Transgenic Mouse Model of Alzheimer's Disease
(Elsevier, 2020-10)
There is increasing evidence that myelin disruption is related to cognitive decline in Alzheimer's disease (AD). In the CNS, myelin is produced by oligodendrocytes, which are generated throughout life by adult oligodendrocyte ...
Membrane-Bound sn-1,2-Diacylglycerols Explain the Dissociation of Hepatic Insulin Resistance from Hepatic Steatosis in MTTP Knockout Mice
(American Society for Biochemistry and Molecular Biology, 2020-12)
Microsomal triglyceride transfer protein (MTTP) deficiency results in a syndrome of hypolipidemia and accelerated NAFLD. Animal models of decreased hepatic MTTP activity have revealed an unexplained dissociation between ...
A Novel Two Stage Controller for a DC-DC Boost Converter to Harvest Maximum Energy from the PV Power Generation
(MDPI, 2020-04-14)
In this article, an efficient and fast two-stage approach for controlling DC-DC boost converter using non linear sliding mode controller for a PV power plant is proposed. The control approach is based on two online methods ...
Inertial Subgradient Extragradient Methods for Solving Variational Inequality Problems and Fixed Point Problems
(MDPI, 2020-05-11)
We propose two new iterative algorithms for solving K-pseudomonotone variational inequality problems in the framework of real Hilbert spaces. These newly proposed methods are obtained by combining the viscosity approximation ...
Psychological Risk Factors that Predict Social Networking and Internet Addiction in Adolescents
(MDPI, 2020-06-26)
Adolescents’ addictive use of social media and the internet is an increasing concern among parents, teachers, researchers and society. The purpose was to examine the contribution of body self-esteem, personality traits, ...