Search results for "Activity"
showing 10 items of 7178 documents
Predictors of foster father’s engagement in foster family homes
2021
Tło badań: Ojcostwo zastępcze jest niewątpliwie szczególnym rodzajem ojcostwa, ponieważ mężczyzna, często będąc już mężem i ojcem swych biologicznych dzieci, podejmuje decyzję o odgrywaniu roli ojca zastępczego. Pełnienie roli ojca zastępczego wymaga wysokiego poziomu zaangażowania w realizację działań opiekuńczo-wychowawczych oraz kompensacyjnych, które z kolei wymagają ciągłego podnoszenia kompetencji w zakresie pracy z dzieckiem osieroconym. Cel badań: Poznanie czynników warunkujących poziom zaangażowania ojców zastępczych w realizację rodzicielskiej działalności w rodzinnych domach dziecka w wymiarze zarówno globalnym, jak i parcjalnym. Metoda badawcza: W badaniach zastosowano metodę so…
Influence of bed roughness on flow and turbulence structure around a partially-buried, isolated freshwater mussel
2023
The present study uses eddy-resolving numerical simulations to investigate how bed roughness affects flow and turbulence structure around an isolated, partially-buried mussel (Unio elongatulus) aligned with the incoming flow. The rough-bed simulations resolve the flow past the exposed part of a gravel bed, whose surface is obtained from a laboratory experiment that also provides some additional data for validation of the numerical model. Results are also discussed for the limiting case of a horizontal smooth bed. Additionally, the effects of varying the level of burial of the mussel inside the substrate and the discharge through the two mussel siphons are investigated via a set of simulatio…
Uzņēmuma SIA "ZK9" finansiālā stāvokļa analīze un novērtējums
2019
Diplomdarba tēma – “Uzņēmuma SIA “ZK 9” finansiālā stāvokļa analīze un novērtējums”. Darba mērķis ir, – uz teorētisko un praktisko materiālu pamata veikt uzņēmuma SIA “ZK 9” finanšu analīzi, salīdzināt iegūtos rezultātus ar auto remonta un apkopes nozares rādītājiem, veikt secinājumus un izstrādāt priekšlikumus finansiālā stāvokļa uzlabošanai, kā arī novērtēt turpmākās attīstības iespējas. Diplomdarbs sastāv no 3 nodaļām. Pirmajā daļā veikts finanšu analīzes teorijas apkopojums. Otrajā daļā raksturota uzņēmuma SIA “ZK 9” saimnieciskā darbība, veikta finanšu rādītāju analīze par periodu no 2015. – 2017.g. Trešajā daļā veikts finanšu rādītāju salīdzinājums ar Auto remonta un apkopes nozares v…
1-3 gadus vecu bērnu runas aktivizēšana pirkstiņrotaļās
2021
Darba autore: Linda Vītolberga Bakalaura darba tēma: 1 – 3 gadus vecu bērnu runas aktivizēšana pirkstiņrotaļās. Darba mērķis: Teorētiski izzināt un praktiski pamatot 1 – 3 gadus vecu bērnu runas aktivizēšanas iespējas pirkstu rotaļās. Darbs sastāv no ievada, teorētiskās, empīriskās daļas, secinājumiem, literatūras saraksta, 3 pielikumiem. Tā pirmajā nodaļā autore analizē runas un valodas jēdziena atspoguļojumu zinātniskajā literatūrā, pētīta runas attīstība agrīnajā pirmsskolas vecumposmā. Autore pēta dažādu autoru interpretācijas par runas attīstību un secina, ka mazbērna vecumā runas attīstība ir viens no pamatuzdevumiem, lai bērns vispusīgi attīstītos. Lai sekmētu bērna runas attīstību, …
A systematic review to determine reliability and usefulness of the field-based test batteries for the assessment of physical fitness in adolescents -…
2015
The aim of the present review is to investigate the main field-based tests, used alone or included in sport or fitness batteries, for the assessment of health- and skill-related physical fitness components in adolescents. Different scientific databases were searched through using the selected key words related to physical fitness and its components for adolescence. The search focused on original articles and reviews/meta-analyses using valid, reproducible and feasible tests that fit within the school environment. A total of 100 scientific manuscripts were included in the qualitative synthesis. The present systematic review pointed out 5 fitness tests that well adapt to the evaluation of the…
Fizisko aktivitāšu saistība ar uztverto stresu
2021
Pētījuma mērķis bija noskaidrot fizisko aktivitāšu saistību ar uztverto stresu. Pētījumā piedalījās 265 respondenti, no tiem 57 (21,5%) vīrieši un 208 (78,5%) sievietes, vecumā no 16 līdz 74 gadiem (M = 29,66, SD = 12,43). Uztvertā stresa mērīšanai tika izmantota Uztvertā stresa skala (Perceived Stress Scale (PSS), Cohen, Kamarck & Memelstein, 1983, aptauju latviešu valodā adaptējusi Ieva Stokenberga, 2008) un fiziskās aktivitāšu mērīšanai tika izmantota Fiziskās aktivitātes līmeņa aptauja un pašnovērtējums (Judzika, 2018). Pētījuma rezultāti neparādīja statistiski nozīmīgas saistības starp fiziskām aktivitātēm un uztverto stresu.
Effect of extraction solvent on total phenolic content, total flavonoid content and antioxidant activity of Cetraria islandica
2020
Oxidative stress may lead to a number of diseases such as atherosclerosis, nephrotoxicity, liver cirrhosis, cancers, diabetes, and Alzheimer disease. Medicinal plants are an important source of antioxidants. Therefore, the antioxidant potential of Cetraria islandica was evaluated in this work. The coarse powder of leaf of Cetraria islandica was extracted in Soxhlet apparatus, with ethanol (90%) and ethanolic extract of Cetraria islandica (EECI) was further processed for phytochemical screening, total phenol content, total flavonoid content, and various in vitro antioxidant assays. The phytochemicals present in EECI were glycosides, carbohydrates, triterpenoids, proteins and amino acids, gum…
Chronic neural probe for simultaneous recording of single-unit, multi-unit, and local field potential activity from multiple brain sites
2017
Drug resistant focal epilepsy can be treated by resecting the epileptic focus requiring a precise focus localisation using stereoelectroencephalography (SEEG) probes. As commercial SEEG probes offer only a limited spatial resolution, probes of higher channel count and design freedom enabling the incorporation of macro and microelectrodes would help increasing spatial resolution and thus open new perspectives for investigating mechanisms underlying focal epilepsy and its treatment. This work describes a new fabrication process for SEEG probes with materials and dimensions similar to clinical probes enabling recording single neuron activity at high spatial resolution.Polyimide is used as a bi…
The Influence of Acetylcholine and Choline on the Incorporation of Phosphate into Phospholipids of Etiolated Bean Hypocotyl Hooks
1980
Summary Acetylcholine influenced the radiolabelling of phospholipids in vivo in etiolated hypocotyl tissue of dwarf beans in darkness. Under aerobic conditions the specific activity of the phospholipids was decreased and under anaerobic conditions increased. The biosynthesis of phospholipids was strongly increased by the bivalent cations calcium and manganese and decreased by 2,4-dinitrophenol, anaerobiosis, atropine and ascorbic acid. Magnesium stimulated the uptake of the radioactive phosphate but not the specific activity of the phospholipids. The results are discussed in comparison with the «phospholipid-effect» of acetylcholine in animal tissues.
Phenol Profiling and Nutraceutical Potential of
2019
In recent years, agricultural and industrial residues have attracted a lot of interest in the recovery of phytochemicals used in the food, pharmaceutical, and cosmetic industries. In this paper, a study on the recovery of phenol compounds from Lycium spp. leaves is presented. Ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) have been used with alcoholic and hydroalcoholic solvents. Methanolic UAE was the most successful technique for extracting phenols from Lycium leaves, and we used on leaves from L. barbarum and L. chinense cultivated in Italy. The extracts were then characterized as regards to the antioxidant properties by in vitro assays and the phenol profil…