Search results for "Intrinsic"
showing 10 items of 386 documents
Pairwise DNA Sequence Alignment Optimization
2015
This chapter presents a parallel implementation of the Smith-Waterman algorithm to accelerate the pairwise alignment of DNA sequences. This algorithm is especially computationally demanding for long DNA sequences. Parallelization approaches are examined in order to deeply explore the inherent parallelism within Intel Xeon Phi coprocessors. This chapter looks at exploiting instruction-level parallelism within 512-bit single instruction multiple data instructions (vectorization) as well as thread-level parallelism over the many cores (multithreading using OpenMP). Between coprocessors, device-level parallelism through the compute power of clusters including Intel Xeon Phi coprocessors using M…
Intrinsic value in crypto currencies
2021
Abstract Over the last years, cryptocurrencies have acquired a growing social and economic interest. The most representative features of this new phenomenon are strong price increases and high volatility. The investigations developed in this field are not excessively numerous nor unanimous. Some researches consider this phenomenon to be a bubble, since they don't agree that the price pattern of the cryptocurrencies is justified or explained by their intrinsic value. The present article aims to provide a theoretical framework for the assessment of these new realities embodied by cryptocurrencies. We have created a model which differentiates two types of cryptocurrencies: the cryptocurrencies…
Perceived Parental and Peer Support in Relation to Canadian, Cuban, and Spanish Adolescents’ Valuing of Academics and Intrinsic Academic Motivation
2011
The aim of this study was to explore possible parent and peer influences on adolescents’ valuing of academics and intrinsic academic motivation in cultures varying in traditional emphasis on the family unit (Cuba, Canada, and Spain). Perceived parent and peer support, parents’ expectations, and valuing of academics significantly predicted adolescents’ valuing of education and motivation. Spanish adolescents were less motivated than members of the other ethnic groups. The Spanish participants also reported lower perceived parental expectations than Chinese Canadians and less perceived peer support than did Cubans and Chinese Canadians. Perceived social support from same- and opposite-sex fr…
Self-control and need satisfaction in primetime: Television, social media, and friends can enhance regulatory resources via perceived autonomy and co…
2021
The relationship between self-control and media use is complicated. Loss of self-control capacity has been linked to generally higher levels of media use, which might represent self-regulatory failure, but could also be attempts at replenishing self-control. Indeed, self-determination theory proposes that satisfying intrinsic psychological needs (autonomy, competence, and relatedness), for example via media use, aids the recovery of self-control. In this 2-wave survey (N = 395), we examined the interplay of users’ self-control capacity and their perceived satisfaction of autonomy, competence, and relatedness needs via media use and alternative leisure activities. Satisfaction of intrinsic n…
Polish and Finnish teenagers’ motivation to learn English:the role of context
2016
Abstract Language learning motivation has been investigated in a number of contexts (Dornyei and Ushioda 2009). However, there has been only one attempt (Taguchi et al. 2009) at a systematic comparison of models of motivation to learn English by students from different countries. The aim of this study is to investigate the role of context by comparing motivational characteristics and SEM (Structural Equation Modelling) models of language learning motivation of 15-16 year-old students from Finland and Poland. The data from both countries was collected using the same motivational questionnaire with a total of 351 students completing it. A number of differences were identified between the two …
Multifunctionality of F-rich nucleoporins
2020
Nucleoporins (Nups) represent a range of proteins most known for composing the macromolecular assembly of the nuclear pore complex (NPC). Among them, the family of intrinsically disordered proteins (IDPs) phenylalanine-glycine (FG) rich Nups, form the permeability barrier and coordinate the high-speed nucleocytoplasmic transport in a selective way. Those FG-Nups have been demonstrated to participate in various biological processes besides nucleocytoplasmic transport. The high number of accessible hydrophobic motifs of FG-Nups potentially gives rise to this multifunctionality, enabling them to form unique microenvironments. In this review, we discuss the multifunctionality of disordered and …
Cell proliferation and DNA breaks are involved in ultraviolet light-induced apoptosis in nucleotide excision repair-deficient Chinese hamster cells.
2002
UV light targets both membrane receptors and nuclear DNA, thus evoking signals triggering apoptosis. Although receptor-mediated apoptosis has been extensively investigated, the role of DNA damage in apoptosis is less clear. To analyze the importance of DNA damage induced by UV-C light in apoptosis, we compared nucleotide excision repair (NER)-deficient Chinese hamster ovary cells (lines 27-1 and 43-3B mutated for the repair genes ERCC3 and ERCC1, respectively) with the corresponding DNA repair-proficient fibroblasts (CHO-9 and ERCC1 complemented 43-3B cells). NER-deficient cells were hypersensitive as to the induction of apoptosis, indicating that apoptosis induced by UV-C light is due to u…
A Novel Self-organizing Neural Technique for Wind Speed Mapping
2009
Systems with high nonlinearities are, in general, very difficult to model. This is particularly true in geostatistics, where the problem of the estimation of a regionalized variable (RV) given only a small amount of measurement stations and a complex terrain surface is very challenging. This paper introduces a novel strategy, which couples the Curvilinear Component Analysis (CCA) and the Generalized Mapping Regressor (GMR). CCA, which is a nonlinear projector of a data manifold, is here used in order to find the intrinsic dimension of the data manifold, just giving an insight on the nonlinearities of the problem. This analysis drives the pre-processing of the data set used for the training …
Comparing normal means: new methods for an old problem
2007
Comparing the means of two normal populations is an old problem in mathematical statistics, but there is still no consensus about its most appropriate solution. In this paper we treat the problem of comparing two normal means as a Bayesian decision problem with only two alternatives: either to accept the hypothesis that the two means are equal, or to conclude that the observed data are, under the assumed model, incompatible with that hypothesis. The combined use of an information-theory based loss function, the intrinsic discrepancy (Bernardo and Rueda 2002}, and an objective prior function, the reference prior \citep{Bernardo 1979; Berger and Bernardo 1992), produces a new solution to this…
Über den einfluß des substitutionsgrads auf die viskositätszahl (staudinger index) von cellulosenitraten
1962
Es wurden Untersuchungen uber die Abhangigkeit des STAUDINGER-Index vom Stickstoffgehalt in einem [η]-Bereich von 700 bis 4000 (ml·g−1) durchgefuhrt. Dabei wurde gegenuber den bisher in der Literatur vorliegenden Arbeiten eine verbesserte Praparations- und Mestechnik angewandt. Es wurde festgestellt, das der Gang des STAUDINGER-Index mit dem Substitutionsgrad swischen 13,0 und 13,8% geradlinig verlauft und durch folgende Gleichung wiedergegeben werden kann (vgl. Abb. 1): Hierin bezeichnet N den Stickstoffgehalt in %; x ist ein Faktor, der vom Polymerisationsgrad bzw. STAUDINGER-Index bei 13,8% in folgender Weise abhangt (vgl. Abb. 2): Bei Stickstoffgehalten uber 13,8% konnte keine Abhangigk…