Search results for " tests"
showing 10 items of 3284 documents
Alignment between standardized assessments and academic standards: The case of the Saber Mathematics Test in Colombia
2013
In this study the concept of alignment is analyzed by presenting the results of a study that examines the degree of alignment between a standardized mathematics assessment and a set of academic standards. The alignment was examined using the Webb model and the results suggest that the degree of alignment between standardized assessments and academic content standards is not the most appropriate and therefore the results should be interpreted with great caution and stakeholders must be very careful with the type of decisions that are made based on the results of these types of assessments.
Modular Breath Analyzer (MBA): Introduction of a Breath Analyzer Platform Based on an Innovative and Unique, Modular eNose Concept for Breath Diagnos…
2021
Exhaled breath analysis for early disease detection may provide a convenient method for painless and non-invasive diagnosis. In this work, a novel, compact and easy-to-use breath analyzer platform with a modular sensing chamber and direct breath sampling unit is presented. The developed analyzer system comprises a compact, low volume, temperature-controlled sensing chamber in three modules that can host any type of resistive gas sensor arrays. Furthermore, in this study three modular breath analyzers are explicitly tested for reproducibility in a real-life breath analysis experiment with several calibration transfer (CT) techniques using transfer samples from the experiment. The experiment …
Renal function is impaired in normotensive chronic HCV patients: role of insulin resistance.
2015
Renal dysfunction is an independent predictor for cardiovascular morbidity and mortality. We investigated whether chronic hepatitis C virus (HCV) infection and the related insulin resistance/hyperinsulinemia influence renal function in comparison with a group of healthy subjects and with another group with metabolic syndrome. We enrolled 130 newly diagnosed HCV outpatients matched for age and gender with 130 patients with metabolic syndrome and 130 healthy subjects. Renal function was evaluated by calculation of glomerular filtration rate (e-GFR, mL/min/1.73 m2) using the CKD-EPI equation. The following laboratory parameters were measured: fasting plasma glucose and insulin, total, LDL- and…
Vispārīgo korpusu tekstu lietojums artikulu apguvē augstskolā
2015
Maģistra darbs ir veltīts vispārīgo korpusu tekstu izmantošanai artikulu mācīšanas materiālu (uzdevumu un testu) izveidē. Šī darba mērķis bija iekļaut dažādu veidu un jomu vispārīgo korpusu tekstus artikulu mācīšanā un testēšanā augstskolā. Teoriju apskats atklāj, ka jau kopš 1960. gadiem ir veicināta uz tekstu korpusiem balstīto materiālu izveide angļu valodas mācīšanā, tomēr šo materiālu klāsts nav pietiekams. Pētījuma praktiskā daļa atspoguļo artikulu vissarežģītākos un vieglākos lietošanas gadījumus, kas iegūti izmantojot gadījuma pētījuma metodi, iekļaujot uz korpusiem balstītu uzdevumu un testu izveidi. Atslēgvārdi: artikuli, četru artikulu sistēma, vispārīgie korpusi, uz korpusiem ba…
Synthesis of C1-[18F]fluoroethylamnino asparagine for imaging cancer
2001
C1-[18F]fluoroethylamino asparagine was synthesised from N1-t-boc C1-p-nitrophenol asparagine and the radiolabelled precursor [18F]flouroethylamine in a one-pot-synthesis. The yield of this synthesis was 22% referring to [18F]fluoride, including the removal of the protection groups. The in vivo tests are in progress.
Effect of natural antioxidants and modified atmosphere packaging in preventing lipid oxidation and increasing the shelf-life of common dolphinfish (C…
2015
We investigated the effects of natural antioxidants and modified atmosphere packaging (MAP) on the quality and shelf-life of Coryphaena hippurus (common dolphinfish) fillets. Fillets of the control group (CO) were simply placed on trays and not sealed. Fillets of the second group (MAP) were preserved in modified atmosphere (45% CO2, 50% N2, 5% O2), and fillets of the third group (MAP-AOX) were preserved by combining natural antioxidants from halophytes with modified atmosphere. All samples were stored in a refrigerator at 1 ± 0.5 C for 18 days. Analyses were conducted at T0 and after 3, 6, 12, 15 and 18 days of storage. According to sensory tests and colour analyses, the fillets in the MAP …
Serological and molecular characteristics of Vibrio vulnificus biotype 3: evidence for high clonality.
2007
Vibrio vulnificus biotype 3 has been implicated as the causative pathogen of an ongoing disease outbreak that erupted in Israel in 1996. Recent work based on multi-locus sequence typing (MLST) showed that V. vulnificus biotype 3 is genetically homogeneous. The aim of this study was to investigate the existence of subpopulations within this homogeneous biotype by characterizing the surface antigens and analysing the sequence diversity of selected outer-membrane protein (OMP)-encoding genes. Rabbit antisera were prepared against biotype 1, 2 and 3 strains. The results of the slide-agglutination test, dot-blot assay (using fresh and boiled cells), and immunoblotting of lipopolysaccharides (LPS…
Association between osteocalcin and cognitive performance in healthy older adults.
2016
INTRODUCTION: cognitive deterioration and reductions of bone health coincide with increasing age. We examine the relationship between bone composition and plasma markers of bone remodelling with measures of cognitive performance in healthy adults.METHODS: this cross-sectional study included 225 old (52% women, mean age: 74.4 ± 3.3 years) and 134 young (52% women, mean age: 23.4 ± 2.7 years) adult participants from the MyoAge project. Whole body bone mineral density was measured by dual-energy X-ray absorptiometry. Blood analyses included a panel of bone-related peptides (dickkopf-1, osteoprotegerin, osteocalcin (OC), osteopontin, sclerostin, parathyroid hormone and fibroblast growth factor …
Burden of Comorbidities in Patients with OSAS and COPD-OSAS Overlap Syndrome
2021
Background and Objectives: Obstructive sleep apnea syndrome (OSAS) and chronic obstructive pulmonary disease (COPD) are usually associated with multi-morbidity. The aim of this study was to retrospectively investigate the prevalence of comorbidities in a cohort of patients with OSAS and COPD-OSAS overlap syndrome (OS) patients and to explore differences between these two groups. Materials and Methods: Included were consecutive OS patients and OSAS patients who had been referred to our sleep laboratory, and were matched in terms of sex, age, BMI, and smoking history. Presence of comorbidities was recorded based on their medical history and after clinical and laboratory examination. Results: …
Especificidad, integración e incidencia de la técnica en la evaluación de la RAA en el fútbol
2019
Las habilidades para repetir aceleraciones máximas y submáximas (RAA) son consideradas de gran importancia en el rendimiento de los futbolistas. Tras analizar las demandas físicas propias del fútbol, el principal objetivo de esta tesis fue diseñar un test de RAA que permita integrar la evaluación conjunta de las diferentes manifestaciones condicionales que son específicas para los futbolistas. El test UST, consta de tres secciones: SEC-A condicional (30m:10m Sprint lineal + 2x10m ida y vuelta /5s), SEC-B técnica con conducción y pase de balón [40m (2x10m-COD-derecha+ 2x10m-COD-izquierda/5s)], SEC-C valoración de la fuerza explosiva [1-CMJ]. Con el fin de determinar la reproducibilidad del t…