Search results for "CIP"
showing 10 items of 15068 documents
Veselīga uztura „šķīvja principa” maltīšu ietekme uz ķermeņa miesas būvi raksturojošiem antropometriskiem parametriem
2021
“Šķīvja princips” tiek uzskatīts par vienu no labākajiem veidiem, kā izglītot sabiedrību par veselīga uztura pamatprincipiem (Harvard University, 2011), nodrošinot organismu ar visām nepieciešamajām uzturvielām, minerālvielām un vitamīniem. Veselīga uztura “šķīvja princips” tiek plaši pielietots un ieteikts daudzu valstu, arī Latvijas Republikas Veselības ministrijas veselīga uztura rekomendācijās. Tomēr ir vērojams zinātnisko datu un pamatojuma trūkums “šķīvja principa” atbilstības novērtējumam uztura vadlīnijām. Tādēļ šī pētījuma mērķis ir novērtēt antropometrisko parametru izmaiņas paaugstinātas augu izcelsmes produktu diētas sešu nedēļu ievērošanas rezultātā pētījuma dalībniekiem ar atš…
The Greenland shark Somniosus microcephalus—Hemoglobins and ligand-binding properties
2017
A large amount of data is currently available on the adaptive mechanisms of polar bony fish hemoglobins, but structural information on those of cartilaginous species is scarce. This study presents the first characterisation of the hemoglobin system of one of the longest-living vertebrate species (392 +/- 120 years), the Arctic shark Somniosus microcephalus. Three major hemoglobins are found in its red blood cells and are made of two copies of the same a globin combined with two copies of three very similar beta subunits. The three hemoglobins show very similar oxygenation and carbonylation properties, which are unaffected by urea, a very important compound in marine elasmobranch physiology.…
Public spending decisions and the role of municipalities in local development in Argentina: An approach from the municipal autonomy and social and po…
2018
El desarrollo endógeno es un tema prioritario en la agenda municipal, atento el rol de liderazgo que les compete a los gobiernos locales en este proceso. A raíz de distintos procesos de descentralización operados desde el nivel central de gobierno hacia los subnacionales, los municipios se han visto obligados a diseñar estrategias y políticas públicas conjuntas con los distintos actores locales, individuos, organizaciones, políticos y asociaciones de la sociedad civil en general, en la búsqueda de soluciones a las problemáticas que plantea la sociedad hoy. En este trabajo se intentará analizar cómo se inserta el gobierno local, en tanto articulador de los esfuerzos de la comunidad, dentro d…
Spin filtering by proximity effects at hybridized interfaces in spin-valves with 2D graphene barriers
2020
We report on spin transport in state-of-the-art epitaxial monolayer graphene based 2D-magnetic tunnel junctions (2D-MTJs). In our measurements, supported by ab-initio calculations, the strength of interaction between ferromagnetic electrodes and graphene monolayers is shown to fundamentally control the resulting spin signal. In particular, by switching the graphene/ferromagnet interaction, spin transport reveals magneto-resistance signal MR > 80% in junctions with low resistance × area products. Descriptions based only on a simple K-point filtering picture (i.e. MR increase with the number of layers) are not sufficient to predict the behavior of our devices. We emphasize that hybridization …
The influence of decision-making in tree ring-based climate reconstructions.
2021
Tree-ring chronologies underpin the majority of annually-resolved reconstructions of Common Era climate. However, they are derived using different datasets and techniques, the ramifications of which have hitherto been little explored. Here, we report the results of a double-blind experiment that yielded 15 Northern Hemisphere summer temperature reconstructions from a common network of regional tree-ring width datasets. Taken together as an ensemble, the Common Era reconstruction mean correlates with instrumental temperatures from 1794–2016 CE at 0.79 (p < 0.001), reveals summer cooling in the years following large volcanic eruptions, and exhibits strong warming since the 1980s. Differing in…
Cryo-EM structure of ssDNA bacteriophage ΦCjT23 provides insight into early virus evolution.
2022
AbstractThe origin of viruses remains an open question. While lack of detectable sequence similarity hampers the analysis of distantly related viruses, structural biology investigations of conserved capsid protein structures facilitate the study of distant evolutionary relationships. Here we characterize the lipid-containing ssDNA temperate bacteriophage ΦCjT23, which infects Flavobacterium sp. (Bacteroidetes). We report ΦCjT23-like sequences in the genome of strains belonging to several Flavobacterium species. The virion structure determined by cryogenic electron microscopy reveals similarities to members of the viral kingdom Bamfordvirae that currently consists solely of dsDNA viruses wit…
Association between cooking fuels and mild cognitive impairment among older adults from six low- and middle-income countries
2022
AbstractThere is a small body of evidence suggesting that unclean cooking fuel use may be associated with cognitive decline. However, to date, no study has investigated the association between unclean cooking fuel and mild cognitive impairment (MCI). Thus, we investigated the association between cooking fuel type or ventilation type and MCI among adults aged ≥ 65 years using nationally representative datasets from six low- and middle-income countries. Cross-sectional, community-based data from the World Health Organization (WHO) Study on global Ageing and adult health (SAGE) were analyzed. MCI was defined using the National Institute on Aging-Alzheimer's Association criteria. Unclean cookin…
Inverse problems for $p$-Laplace type equations under monotonicity assumptions
2016
We consider inverse problems for $p$-Laplace type equations under monotonicity assumptions. In two dimensions, we show that any two conductivities satisfying $\sigma_1 \geq \sigma_2$ and having the same nonlinear Dirichlet-to-Neumann map must be identical. The proof is based on a monotonicity inequality and the unique continuation principle for $p$-Laplace type equations. In higher dimensions, where unique continuation is not known, we obtain a similar result for conductivities close to constant.
Constant sign and nodal solutions for nonlinear robin equations with locally defined source term
2020
We consider a parametric Robin problem driven by a nonlinear, nonhomogeneous differential operator which includes as special cases the p-Laplacian and the (p,q)-Laplacian. The source term is parametric and only locally defined (that is, in a neighborhood of zero). Using suitable cut-off techniques together with variational tools and comparison principles, we show that for all big values of the parameter, the problem has at least three nontrivial smooth solutions, all with sign information (positive, negative and nodal).
Removing the saturation assumption in Bank-Weiser error estimator analysis in dimension three
2020
International audience; We provide a new argument proving the reliability of the Bank-Weiser estimator for Lagrange piecewise linear finite elements in both dimension two and three. The extension to dimension three constitutes the main novelty of our study. In addition, we present a numerical comparison of the Bank-Weiser and residual estimators for a three-dimensional test case.