Search results for " tests"
showing 10 items of 3284 documents
Hromatiskās izšķirtspējas izvērtēšana cilvēkiem ar krāsu redzes deficītiem
2022
Darbs ir uzrakstīts latviešu valodā uz 42 lapaspusēm. Tas satur 15 attēlus, 4 tabulas, 0 pielikumus un 58 atsauces uz literatūras avotiem. Darba mērķis ir noskaidrot, kādos gadījumos pētījumā apskatītie krāsu redzes testi ir veiksmīgi izmantojami optometrijas un redzes zinātnē Darbā tika noskaidrotas būtiskākās krāsu redzes testu atšķirības, izmantojamība praksē, uzbūves principi, priekšrocības un trūkumi. Optometrijas un redzes zinātnes jomā darbs var sniegt ieskatu par to, kādi krāsu redzes testi un kādos gadījumos ir veiksmīgi izmantojami krāsu redzes pārbaudē, ņemot vērā to dažādību, kā arī uzzināt par krāsu redzes testu uzbūves principiem.
Hromatiskās modulācijas kontrastjutības testa izveidošana
2018
Maģistra darbs ir uzrakstīts uz 35 lapaspusēm. Tas satur 22 attēlus, 3 tabulas, 34 atsauces uz literatūras avotiem. Darba mērķis: Izveidot jaunu hromatiskas modulācijas kontrastjutības datorizēto testu un aprobēt testu cilvēkiem ar krāsu redzes defektiem un bez krāsu redzes defektiem. Pētījuma piedalījās 7 dalībnieki, no kuriem 2 bija deuteranomālija ar dažādu smaguma pakāpi. Tika noteikta hromatiskas kontrastjutības likne katram dalībniekam.
Fona ietekme uz Farnsworth D15 testa rezultātiem
2020
Darbs ir uzrakstīts latviešu valodā uz 31 lapaspuses. Tas satur 20 attēlus, 1 tabulu, 47 atsauces uz literatūras avotiem. Darba mērķis: novērtēt fona ietekmi uz D15 testa rezultātiem cilvēkiem ar krāsu redzes deficītiem, pielietojot modeli, kas balstās uz krāsu kanālu ierosinājuma līmeņa aprēķiniem, kas atkarīgi no modelētajiem krāsu kanālu signāliem. Pētījumā tika izmantots matemātiskais krāsu uztveres modelis. Tas nodrošināja iespēju modelēt deitan krāsu redzes deficīta iespējamās kauliņu salikšanas secības un iegūstamos rezultātus Rezultātā tika secināts, ka ar matemātisko krāsu uztveres modeli ir iespējams noteikt, kā fons ietekmē Farnsworth D15 testa krāsu kauliņu sakārtošanas secību, …
Problems and Issues in Translating International Educational Achievement Tests
2013
The article reviews research and findings on problems and issues faced when translating international academic achievement tests. The purpose is to draw attention to the problems, to help to develop the procedures followed when translating the tests, and to provide suggestions for further research. The problems concentrate on the following: the unique and demanding purpose of the translation task, the partly contradictory task specifications and translation instructions, the indecision as to whether to produce one or two target versions, the indecision as to whether to use one or two source versions, inadequate revision and verification, deficient translator competences, and a lack of time.…
A classical phenotype of Anderson-Fabry disease in a female patient with intronic mutations of the GLA gene: a case report
2012
Abstract Background Fabry disease (FD) is a hereditary metabolic disorder caused by the partial or total inactivation of a lysosomal hydrolase, the enzyme α-galactosidase A (GLA). This inactivation is responsible for the storage of undegraded glycosphingolipids in the lysosomes with subsequent cellular and microvascular dysfunction. The incidence of disease is estimated at 1:40,000 in the general population, although neonatal screening initiatives have found an unexpectedly high prevalence of genetic alterations, up to 1:3,100, in newborns in Italy, and have identified a surprisingly high frequency of newborn males with genetic alterations (about 1:1,500) in Taiwan. Case presentation We des…
Effect of using cardiovascular risk scoring in routine risk assessment in primary prevention of cardiovascular disease: an overview of systematic rev…
2019
Background Our objectives were to critically appraise and summarise the current evidence for the effectiveness of using cardiovascular disease (CVD) risk scoring (total risk assessment - TRA) in routine risk assessment in primary prevention of CVD compared with standard care with regards to patients outcomes, clinical risk factor levels, medication prescribing, and adverse effects. Methods We carried out an overview of existing systematic reviews (SRs). Presentation of the results aligned guidelines from the PRISMA statement. The data is presented as a narrative synthesis. We searched MEDLINE (Ovid), EMBASE, CENTRAL and SCOPUS databases from January 1990 to March 2017, reviewed the referenc…
Usefulness of biomarkers as intermediate endpoints in health risks posed by occupational lead exposure
2015
The article concerns potential harmful effects of exposure to lead. Although the occurrence of severe lead poisoning has receded in several countries, occupational exposure resulting in moderate and clinically symptomatic toxicity is still common. An earlier and precise characterization of an individual response is obligatory in order to assess the possible risks for human health. Biomarkers may fill important gaps in the path from exposure to a disease. Specifically speaking, emerging (DNA double strand breaks and telomeric DNA erosion) and validated (micronuclei induction and chromosomal aberrations) biomarkers of genotoxicity seem to provide evidence for the assessment of molecular and c…
Modulation of the Endocannabinoids N-Arachidonoylethanolamine (AEA) and 2-Arachidonoylglycerol (2-AG) on Executive Functions in Human.
2013
Animal studies point to an implication of the endocannabinoid system on executive functions. In humans, several studies have suggested an association between acute or chronic use of exogenous cannabinoids (Δ9-tetrahydrocannabinol) and executive impairments. However, to date, no published reports establish the relationship between endocannabinoids, as biomarkers of the cannabinoid neurotransmission system, and executive functioning in humans. The aim of the present study was to explore the association between circulating levels of plasma endocannabinoids N-arachidonoylethanolamine (AEA) and 2-Arachidonoylglycerol (2-AG) and executive functions (decision making, response inhibition and cognit…
Distance learning training in genetics and genomics testing for Italian health professionals: results of a pre and post-test evaluation
2022
BackgroundProgressive advances in technologies for DNA sequencing and decreasing costs are allowing an easier diffusion of genetic and genomic tests. Physicians’ knowledge and confidence on the topic is often low and not suitable for manage this challenge. Tailored educational programs are required to reach a more and more appropriate use of genetic technologies.MethodsA distance learning course has been created by experts from different Italian medical associations with the support of the Italian Ministry of Health. The course was directed to professional figures involved in prescription and interpretation of genetic tests. A pretest-post-test study design was used to assess knowledge impr…
The Influence of Chemical Composition of Commercial Lemon Essential Oils on the Growth of Candida Strains
2013
Candida yeasts are saprophytes naturally present in the environment and forming colonies on human mucous membranes and skin. They are opportunistic fungi that cause severe and even fatal infections in immunocompromised individuals. Several essential oils, including eucalyptus, pine, cinnamon and lemon, have been shown to be effective against Candida strains. This study addresses the chemical composition of some commercial lemon essential oils and their antifungal potential against selected Candida yeast strains. Antifungal potential and minimum inhibitory concentrations were determined for six commercial lemon essential oils against five Candida yeast strains (Candida albicans 31, Candida t…