Search results for "Linea"

Distinctive attributes for predicted secondary structures at terminal sequences of non-classically secreted proteins from proteobacteria

2008

Abstract C- and N-terminal sequences (64 amino acid residues each) of 89 non-classically secreted type I, type III and type IV proteins (Swiss-Prot/TrEMBL) from proteobacteria were transformed into predicted secondary structures. Multivariate analysis of variance (MANOVA) confirmed the significance of location (C- or N-termini) and secretion type as essential factors in respect of quantitative representations of structured (a-helices, b-strands) and unstructured (coils) elements. The profiles of secondary structures were transcripted using unequal property values for helices, strands and coils and corresponding numerical vectors (independent variables) were subjected to multiple discriminan…

Investigation of Nonlinear Optical Processes in Mercury Sulfide Quantum Dots

2022

European Regional Development Fund (1.1.1.5/19/A/003), State Assignment to Higher Educational Institutions of Russian Federation (FZGU-2020-0035), Russian Foundation for Basic Research (18-29-20062). Institute of Solid State Physics, University of Latvia as the Center of Excellence acknowledges funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2.

Bending Work Time: Curvilinear Relationship Between Working Time Dimensions and Psychological and Somatic Symptoms.

2020

Objectives Study examines the curvilinear associations of working time dimensions (working hours, time pressure, work schedules, and control of work time and pace) on psychological and somatic symptoms. Methods Representative Finnish Quality-of-Work-Life Surveys conducted in 2003, 2008 and 2013 were restricted to those (N=11,165) regularly working over 10h/week with more than one-year tenure in their job. Generalised additive models were utilised in analysis. Results Working hours had U-shaped relationships with psychosomatic symptoms, while time pressure had a threshold effect. Work pace control had linear effect. The effects of work time control and work schedules were insignificant. Ther…

Ponnistelujen ja palkkioiden epäsuhdan sekä ylisitoutuneisuuden yhteys työn intohimoon

2017

Tutkimuksen tarkoituksena oli lisätä tietoa työssä ilmenevien ponnistelujen ja palkkioiden epäsuhdan sekä ylisitoutuneisuuden yhteyksistä kahteen erilaiseen työn intohimoon: harmoniseen ja pakonomaiseen. Tutkimus kohdistui 270 suomalaiseen toimihenkilöön. Tutkittavista 220 oli miehiä (81.5%) ja tutkittavien keski-ikä oli 42 vuotta (kh 3.3, vaihteluväli 34—47). Hierarkkisen lineaarisen regressioanalyysin tulokset osoittivat, että ponnistelujen ja palkkioiden epäsuhta selitti korkeaa harmonista työn intohimoa. Ylisitoutuneisuus selitti vähäistä harmonista työn intohimoa ja korkeaa pakonomaista työn intohimoa. Ylisitoutuneisuus ei muuntanut ponnistelujen ja palkkioiden epäsuhdan yhteyttä kumpa…

On elliptic equations involving the 1-Laplacian operator

2018

El objetivo de esta tesis doctoral es dar a conocer los resultados obtenidos sobre existencia, unicidad y regularidad de las soluciones de diferentes ecuaciones elípticas regidas por el operador 1-laplaciano. El primer capítulo está dedicado al estudio de la ecuación - div (Du/|Du|) + g(u) |Du| = f(x) en un subconjunto abierto y acotado U de R^N con frontera Lipschitz, con la condición de Dirichlet u=0 en la frontera, tomando una función f positiva y siendo g una función real, continua y positiva. Por un lado, obtenemos soluciones no acotadas cuando el dato f pertenece al espacio de Marcinkiewicz L^{N,\infty}(U), por lo que debemos introducir la definición apropiada para este tipo de soluci…

Otrās kārtas parasto diferenciālvienādojumu divpunktu robežproblēmas ar asimetriskām nelinearitātēm

2017

Darbs ir veltīts 2.kārtas parasto diferenciālvienādojumu robežproblēmam. Tiek apskatīta divpunktu robežproblēma ar asimetriskām nelinearitātēm. Ir iegūti rezultāti par atrisinājuma eksistenci un skaitu. Darbā ir paradīts, ka robežproblemu atrisinājumu skaits ir atkarīgs no intervāla garuma.

Trilineaariset koordinaatit

2012

Positive solutions for nonlinear Robin problems

2017

We consider a parametric Robin problem driven by the p-Laplacian with an indefinite potential and with a superlinear reaction term which does not satisfy the Ambrosetti-Rabinowitz condition. We look for positive solutions. We prove a bifurcation-type theorem describing the nonexistence, existence and multiplicity of positive solutions as the parameter varies. We also show the existence of a minimal positive solution $\tilde{u}_\lambda$ and establish the monotonicity and continuity of the map $\lambda\to \tilde{u}_\lambda$.

Nonlinear evolution equations for turbulent superfluids

2010

In this paper a system of evolution equations for turbulent superfluid helium is written in the nonlinear regime, choosing as fundamental fields the density, the velocity, the heat flux, the non-equilibrium temperature and the average vortex line density per unit volume. Approximate equations are written, where second order terms in the non-equilibrium quantities are retained.

Students' problems in the identification of subspaces in Linear Algebra

2018

International audience; The goal of the study presented in this paper is the investigation of students' problems with exercises concerning central topics of linear algebra courses at university level. We present the results of our analysis of students' work on an exercise about subspaces of . We evaluated the written solutions of the task as well as transcripts based on videos taken of student groups working on the problem. We identified and classified descriptions of vector spaces and subspaces that varied widely and demonstrated highly different skills in working with geometric or formal algebraic objects. We analyzed how far students could progress in a complex reasoning process, and ide…