Search results for "RAM"
showing 10 items of 35643 documents
Sieviešu tēla reprezentācija Instagram platformā un tā uztvere pusaudžu vecuma meiteņu vidū
2021
Bakalaura tēma ir "Sieviešu tēla reprezentācija Instagram platformā un tā uztvere pusaudžu vecuma meiteņu vidū." Darbā ir veikts pētījums par to, kā jaunas pusaudžu meitenes uztver "Instagram" vietnes saturu, analizējot "Instagram" platformas saturu, kurš tiek apskatīts ar teorijām par reprezentācijas un sievietes obejktivizācijas jautājumiem. Darba mērķis ir noskaidrot un izpētīt kā pusaudžu vecuma meitenes (vecuma grupā no 12-19 gadiem) uztver "Instagram" vietni un vai tā spēj atstāt iespaidu uz meitenēm pusaudžu vecumā, veicināt viedokļu maiņu par to, kādam ir jābūt sievietes tēlam, kāds izskats ir pieņemams, kā arī vai meitenes ņem piemēru no šajā platformā redzamajām personām (influenc…
The Usability of the Annotation
2016
Several corpus projects for sign languages have tried to establish conventions and standards for the annotation of signed data. When discussing corpora, it is necessary to develop a way of considering and evaluating holistically the features and problems of annotation. This paper aims to develop a conceptual framework for the evaluation of the usability of annotations. The purpose of the framework is not to give conventions for annotating but to offer tools for the evaluation of the usability of the annotation, in order to make annotations more usable and make it possible to justify and explain decisions about annotation conventions. Based on our experience of annotation in the corpus proje…
Corrigendum: ExGUtils: A Python Package for Statistical Analysis With the ex-Gaussian Probability Density
2018
Niche position drives interspecific variation in occupancy and abundance in a highly-connected lake system
2019
Highlights • We studied interspecific variation in occupancy and abundance of freshwater species. • Occupancy and abundance correlated positively for both diatoms and macroinvertebrates. • Niche position had clearest effects on variation in occupancy and abundance. • The more marginal the niche position, the rarer a species is. We examined how niche position, niche breadth, biological traits and taxonomic relatedness affect interspecific variation in occupancy and abundance of two commonly-used biological indicator groups, i.e. diatoms and macroinvertebrates. We studied 291 diatom and 103 macroinvertebrate species that occupied the littoral zones of a large (305 km2) highly-connected freshw…
Structural properties of core and surface of silica nanoparticles investigated by Raman spectroscopy
2013
We studied the experimental Raman spectra of various commercial silica nanoparticles of average diameter from 7 to 40 nm and specific surface from 50 to 380 m^2/g. We found that the peculiarities of the particles Raman spectra systematically depend on their specific surface. In detail, the peak position of the R band at about 440 cm ^-1 shifts towards high wavenumbers following an almost linear dependence on the specific surface. Similarly, the amplitudes of the D1 and D2 bands, at about 495 and 605 cm ^-1, respectively, increase linearly with the same quantity. Our results are interpreted in the frame of the shell model for the nanoparticles clarifying that the network of the core of the n…
Thioflavin-T doped silica nanoparticles by basic-catalyzed sol-gel synthesis
2014
We developed a basic-catalyzed sol-gel procedure that allows to synthesize silica nanoparticles functionalized with Thioflavin-T (ThT). During the synthesis, the formation of the doped silica nanoparticles was monitored by absorbance spectra indicating that the catalyst does not cause the total hydroxylation of the dye. Fluorescence measurements carried out on the ThT doped silica nanoparticles proved the attachment of ThT on silica and Raman spectroscopy provided information about the dye structure.
Paramagnetic germanium-related centers induced by energetic radiation in silica based devices
2009
Resonance Raman of oxygen dangling bonds in amorphous silicon dioxide
2017
We investigate the origin of a resonance Raman band induced by ionizing radiation in amorphous silicon dioxide (silica glass), which can be detected under ultraviolet laser excitation. A silica sample, rich of oxygen-excess related defects, was prepared by treating some length of a pure-silica-core multimode fiber in an O2 atmosphere (at high temperature and pressure) and by irradiating it with X-rays at 10 MGy(SiO2) dose. A micro-Raman study revealed a gaussian band peaking at 896 cm−1 with a full width at half maximum of 32 cm−1, which could be detected by exciting the sample with the 325-nm line of a HeCd laser. This spectral feature is absent in the Raman spectra performed with the 442-…
Physiological parameters measurements in a cardiac cycle via a combo PPG-ECG system
2015
In this paper, we present an innovative way to measure some physiological parameters (such as the pre-ejection period, the pulse transit time, the blood pressure) in a cardiac cycle. A combo PPG-ECG system has been developed and employed to extract both the ECG signal from standard limb leads and simultaneously the photoplethysmography signal from the wrist and the forearm, to calculate the pre-ejection period. This system represents an easy and non-invasive technique to determine these biomedical parameters without using expensive impedance cardiography equipment.