Search results for "LG"
showing 10 items of 12878 documents
Darba samaksa,tās aprēķināšana un uzskaite SIA „TRANS”
2016
Diplomdarba mērķis izpētīt ar darba samaksu saistītos teorētiskos aspektus, analizēt uzņēmuma izvēlēto samaksas sistēmu un izstrādāt priekšlikumus tās pilnveidošanai. Diplomdarbā autore pēta darba samaksas teorētiskos jautājumus, kā arī analizē konkrēta uzņēmuma SIA “TRANS” darba samaksas sistēmu. Kā rezultātā autore ir konstatējusi SIA “TRANS” eksistējošas nepilnības un izstrādājusi priekšlikumus to novēršanai.
Model organisms and their application in environmental epigenetics
2020
Abstract Epigenetic mechanisms operate at the interface between the environment and the genome of a given organism. More particularly, they convert environmental stimuli as diverse as chemical pollutants, nutritional components, temperature changes, and social conditions into changes in the chromatin landscape, which influence gene expression in the absence of alterations in the DNA sequence, ultimately leading to phenotype adaptation and diversification. The use of experimental model organisms in epigenetics research allows for the careful manipulation of environmental factors in order to understand how they mechanistically modulate the establishment, maintenance, and inheritance of epigen…
The role of lipid metabolism in the acquisition of desiccation tolerance inCraterostigma plantagineum: a comparative approach
2013
Summary Dehydration leads to different physiological and biochemical responses in plants. We analysed the lipid composition and the expression of genes involved in lipid biosynthesis in the desiccation-tolerant plant Craterostigma plantagineum. A comparative approach was carried out with Lindernia brevidens (desiccation tolerant) and two desiccation-sensitive species, Lindernia subracemosa and Arabidopsis thaliana. In C. plantagineum the total lipid content remained constant while the lipid composition underwent major changes during desiccation. The most prominent change was the removal of monogalactosyldiacylglycerol (MGDG) from the thylakoids. Analysis of molecular species composition rev…
Factors affecting the production of putrescine from agmatine by Lactobacillus hilgardii X1B isolated from wine
2008
Aims: To elucidate and characterize the metabolic putrescine synthesis pathway from agmatine by Lactobacillus hilgardii X1B. Methods and Results: The putrescine formation from agmatine by resting cells (the normal physiological state in wine) of lactic acid bacteria isolated from wine has been determined for the first time. Agmatine deiminase and N-carbamoylputrescine hydrolase enzymes, determined by HPLC and LC-Ion Trap Mass Spectrometry, carried out the putrescine synthesis from agmatine. The influence of pH, temperature, organic acids, amino acids, sugars and ethanol on the putrescine formation in wine was determined. Conclusions: Resting cells of Lact. hilgardii X 1B produce putrescine …
Regulation of hdc expression and HDC activity by enological factors in lactic acid bacteria.
2008
Aims: The aim of this work was to study the influence of enological factors on the histidine decarboxylase gene (hdc) expression and on histidine decarboxylase enzyme (HDC) activity in Lactobacillus hilgardii, Pediococcus parvulus and Oenococcus oeni. Methods and Results: Cell extracts and whole cells were used. Glucose, fructose, malic acid and citric acid diminished the hdc expression. Ethanol did not increase hdc expression or activity in cells, but increased HDC activity. Temperature and pH had effect on the activity of HDC but not on hdc expression. Tartaric acid and l-lactic acid, and sulphur dioxide (SO2) had no effect on enzyme synthesis and activity. Bacterial species differ in t…
Inferring Phytoplankton, Terrestrial Plant and Bacteria Bulk δ¹³C Values from Compound Specific Analyses of Lipids and Fatty Acids.
2015
Stable isotope mixing models in aquatic ecology require δ13C values for food web end members such as phytoplankton and bacteria, however it is rarely possible to measure these directly. Hence there is a critical need for improved methods for estimating the δ13C ratios of phytoplankton, bacteria and terrestrial detritus from within mixed seston. We determined the δ13C values of lipids, phospholipids and biomarker fatty acids and used these to calculate isotopic differences compared to the whole-cell δ13C values for eight phytoplankton classes, five bacterial taxa, and three types of terrestrial organic matter (two trees and one grass). The lipid content was higher amongst the phytoplankton (…
Reliable Outer Bounds for the Dual Simplex Algorithm with Interval Right-hand Side
2013
International audience; In this article, we describe the reliable computation of outer bounds for linear programming problems occuring in linear relaxations derived from the Bernstein polynomials. The computation uses interval arithmetic for the Gauss-Jordan pivot steps on a simplex tableau. The resulting errors are stored as interval right hand sides. Additionally, we show how to generate a start basis for the linear programs of this type. We give details of the implementation using OpenMP and comment on numerical experiments.
L'image de la Belgique dans les sites Internet finlandais
2014
Belgia on tuttu Suomessa pääkaupungistaan Brysselistä, jossa sijaitsee EU:n päämaja. Belgia on kuitenkin paljon muutakin, ja siellä mm. gastronomia-, arkkitehtuuri-, historia- ja luontomatkailu kehittyy koko maassa. Näitä tar-kastellaan näillä Belgian imagoa käsittelevillä suomenkielisillä verkkosivuilla. Miten Belgiaa kuvaillaan? Onko kuvaus monipuolinen, puutteellinen, positiivinen, täsmällinen? Tämän tutkielman korpuksena on käytetty neljää suomenkielistä verkkosivustoa. Yksi niistä on matkatoimisto CWT Kaleva Travelin sivusto. Toinen on Otavamedia Oy:n omistama Ellit.fi, ns. ”lifestyle”-sivusto. Kolmas on portaalityyppinen verkkopalvelu Napsu.fi, ja neljäs on matkailusivusto Rantapallo.…
Eläkeläisten muuttoaikeet ja muuttaminen : vertaileva tutkimus viiden hyvinvointivaltiomallimaan kesken
2012
Skujkoku biomasas izvākšanas ilgtermiņa ietekme uz zemsedzes veģetāciju un augsnes ķīmisko sastāvu
2019
Maģistra darbs „Visas biomasas izvākšanas ilgtermiņa ietekme uz zemsedzes veģetāciju un augsnes ķīmisko sastāvu priežu un egļu audzēs” izstrādāts laika posmā no 2015. gada augusta līdz 2019. gada maijam Latvijas Valsts mežzinātnes institūtā “Silava” un Latvijas Universitātes Bioloģijas fakultātē. Pētījuma mērķis bija noskaidrot vai visas koku biomasas izvākšana no teritorijas (whole tree harvesting - WTH), ir atstājusi ilgtermiņa ietekmi uz veģetācijas atjaunošanos un augsnes ķīmisko sastāvu. Pētījumā apskatīja zemsedzes veģetāciju un augsnes ķīmisko sastāvu priežu audzēs mētrājā, lānā, šaurlapju ārenī un egles audzēs šaurlapju ārenī. Katrā no meža tipiem atlasīja teritorijas, kas bija līdz…