Results 101 to 110 of about 27,828,593 (362)

Navigating new norms: a systematic review of factors for the development of effective digital tools in higher education

open access: yesFEBS Open Bio, EarlyView.
What factors make for an effective digital learning tool in Higher Education? This systematic review identifies elements of a digital tool that published examples reveal to be features of an engaging and impactful digital tool. A systematic literature search yielded 25 research papers for analysis.
Akmal Arzeman   +4 more
wiley   +1 more source

Theoretical Models for Producing Circularly Polarized Radiation in Extragalactic Radio Sources

open access: yes, 2003
We discuss the production of circular polarization in compact radio sources both by the intrinsic mechanism and by Faraday conversion. We pay particular attention to the magnetic field structure, considering partially ordered fiel ds and Laing sheets ...
Homan, Daniel C., Wardle, John F. C.
core   +1 more source

EVOLUCIÓN DE INTERACCIONES PARÃ�SITO - HOSPEDERO: COEVOLUCIÓN, SELECCIÓN SEXUAL Y OTRAS TEORÃ�AS PROPUESTAS THE EVOLUTION OF HOST-PARASITE INTERACTIONS: COEVOLUTION, SEXUAL SELECTION AND OTHER SUGGESTED THEORIES

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2011
Esta revisión resume los modelos teóricos de interacciones parásito-hospedero que se encuentran disponibles en la literatura científica. Se revisaron publicaciones internacionales en revistas especializadas sobre parasitología y ecología.
Guillermo Rico-Hernández
doaj  

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Theoretical study of hydrogen microstructure in models of hydrogenated amorphous silicon

open access: yes, 2009
We study the distribution of hydrogen and various hydride configurations in realistic models of a-Si:H for two different concentration generated via experimentally constrained molecular relaxation approach (ECMR) [1].
Abragam   +13 more
core   +1 more source

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

open access: yesFEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli   +9 more
wiley   +1 more source

PRESIDENTIAL-CONGRESSIONAL RELATIONS IN US FOREIGN POLICY DECISION-MAKING: A THEORETICAL TREATISE

open access: yesVestnik MGIMO-Universiteta, 2018
The present paper aims to offer a conceptual exploration of the Presidential-Congressional relations in the US foreign policy decision-making. The US foreign policy decision-making arguably takes place within a functional synthesization of compromised ...
T. Asadi, M. Arjmand
doaj   +1 more source

ATP13A2 is involved in intracellular polyamine transport in lung epithelial cells

open access: yesFEBS Open Bio, EarlyView.
Spermidine transport in lung epithelial cells involves the polyamine transporter ATP13A2. Cell proliferation is associated with the upregulation of ATP13A2. Polyamines are present in all living cells and are implicated in various crucial cellular processes such as proliferation, apoptosis and autophagy.
Yuta Hatori   +8 more
wiley   +1 more source

Modeling the History of Astronomy: Ptolemy, Copernicus and Tycho

open access: yes, 2013
This paper describes a series of activities in which students investigate and use the Ptolemaic, Copernican, and Tychonic models of planetary motion. The activities guide students through using open source software to discover important observational ...
Timberlake, Todd
core   +1 more source

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