Search results for " LAB"

Dzīves mērķu, pašefektivitātes saistība ar subjektīvās labklājības rādītājiem sievietēm

2020

Bakalaura darba pētījuma mērķis ir izprast dzīves mērķu pašefektivitātes saistību ar subjektīvās labklājības rādītājiem sievietēm. Pētot konstruktu teorētisko bāzi tika izvirzīts, ka iekšējā satura dzīves mērķiem ir saistība ar subjektīvo labklājību, un balstoties uz personīgo vērtību izvirzītajiem dzīves mērķiem un indivīda pašefektivitātes līmeni, izvirzīto mērķu sasniegšana ietekmē subjektīvās labklājības līmeni. Pētījuma respondentu izlasi veido 60 sievietes vecuma grupā no 20-50 gadiem , kuru vidējais vecums ir 33,83 gadi. Dzīves mērķu, pašefektivitātes un subjektīvās labklājības noteikšanai tika pielietotas Dzīves mērķu skala (Aspirations Index; Kasser & Ryan, 1996), Latvijā aptauju a…

Ascorbic Acid Oxidation in Sucrose Aqueous Model Systems at Subzero Temperatures

2004

The reduction of Tempol by ascorbic acid in concentrated sucrose solutions was measured by electron paramagnetic resonance (EPR) at temperatures ranging from 16 to −16 °C. This method allowed the determination of the rate constants (k) of this fast reaction, by recording the Tempol reduction as a function of time. The two reactants were initially separated and had to migrate for the reaction to occur. The experimental findings were compared with predicted values according to the equation for diffusion-controlled reaction proposed by Atkins. The experimental reaction rate constants were observed to be lower than the calculated ones. However, the experimental values were found to be controlle…

Heterogeneous Displacement Effects of Migrant Labor Supply – Quasi-Experimental Evidence From Germany

2019

We provide estimates of the effect of migrant labor supply on resident employment. We exploit variation in the number of asylum seekers eligible to the suspension of a major hiring restriction implemented in a subset of German counties. Our difference-in-difference design allows us to provide evidence from a labor supply shock of migrants on local markets net of their additional spending at arrival that might mask labor market displacement effects. Despite this, we do not find a negative effect on employment growth of natives but only on other foreign residents. This also holds for unskilled employees. Therefore, our findings can be interpreted as the consequence of differential substitutab…

Europa traicionada

2002

Usability Challenges in Surgical Simulator Training

2009

Surgical virtual reality simulators have been taken into use in order to improve surgical skills training. Emergence of simulators increases the need for research and knowledge related to usability of medical simulators. In this study usability of laparoscopic surgical simulator was researched experimentally through combined analysis. Data was gathered with heuristic evaluation, questionnaires, and interviews as well as recorded simulator parameters. Results suggest that the surgical simulator could be more efficient learning and training tool if usability issues such as support and error prevention were reconsidered in more detail. There also seem to be grounds for connecting user support …

The effect of detergents on the basement membrane complex of a biologic scaffold material

2013

The basement membrane complex (BMC) is a critical component of the extracellular matrix (ECM) that supports and facilitates the growth of cells. This study investigates four detergents commonly used in the process of tissue decellularization and their effect upon the BMC. The BMC of porcine urinary bladder was subjected to 3% Triton-X 100, 8 mM 3-[(3-cholamidopropyl) dimethylammonio]-1-propanesulfonate (CHAPS), 4% sodium deoxycholate or 1% sodium dodecyl sulfate (SDS) for 24 h. The BMC structure for each treatment group was assessed by immunolabeling, scanning electron microscopy (SEM) and second harmonic generation (SHG) imaging of the fiber network. The composition was assessed by quantif…

Sustainable Development and Transition Management: A New Approach for European Peripheral Areas

2020

This paper on Europe as a sustainable economy and its policy for peripheral areas contributes to the analysis on the relationship between Transition Management and new approaches to regional development. It follows that regions are different ecosystems which require not only conventional macroeconomic visions for development processes, but also a precise spatial approach based on different levels of geographical aggregation. The physical environment, therefore, becomes a useful element not only to analyze the transition mechanisms, but also as a constitutive part of economic, social and environmental changes in the short, medium, and long term. A number of interesting aspects are examined a…

NGOs and the implementation of active labour market policies : the case of Finland and Sweden

2012

Long Term Outcome after Application of the Angio-Seal Vascular Closure Device in Minipigs

2016

PLoS one 11(9), e0163878 (2016). doi:10.1371/journal.pone.0163878

Instant labeling of therapeutic cells for multimodality imaging

2020

Autologous therapeutic cells are typically harvested and transplanted in one single surgery. This makes it impossible to label them with imaging biomarkers through classical transfection techniques in a laboratory. To solve this problem, we developed a novel microfluidic device, which provides highly efficient labeling of therapeutic cells with imaging biomarkers through mechanoporation. Methods: Studies were performed with a new, custom-designed microfluidic device, which contains ridges, which compress adipose tissue-derived stem cells (ADSCs) during their device passage. Cell relaxation after compression leads to cell volume exchange for convective transfer of nanoparticles and nanoparti…