Search results for " activity"

showing 10 items of 4540 documents

Optimisation of Conditions for Extraction of Biologically Active Compounds from Common Bryophytes in Latvia / Latvijâ Augoðu Briofîtu Ekstrakcijas Ap…

2015

Abstract Bryophytes are the second largest taxonomic group in the plant kingdom. They contain a high number of biologically active compounds. Studies of their composition are important for understanding evolutionary processes in the plant kingdom. The aim of this study was to assess bryophyte secondary metabolite extraction options and to increase the yields of polyphenols and substances determining the free radical scavenging activity of bryophyte extracts. Similar studies have been conducted using higher plants as model organisms, but not using bryophytes. Comparison of five extraction methods (conventional, Soxhlet extraction, treatment with microwaves, ultrasound, and supercritical CO2 …

extraction optimisationMultidisciplinaryGeneral interestScienceQExtraction (chemistry)food and beveragesBiologybryophyte chemistryantiradical activityPolyphenolEnvironmental chemistrymicrowave- assisted extractionsupercritical co2 extractionpolyphenolsProceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.
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Arjen pienet valinnat kartuttavat perheen liikuntaa

2013

familycounselingphysical activityperheliikuntaneuvonta
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Physical activity and motor competence in 4-8-year old children : results of a family-based cluster-randomized controlled physical activity trial

2016

This thesis addresses the following research questions: 1) what are the intensities of physical activities that are typically considered to develop motor competence in children, 2) how is accelerometer-derived physical activity (PA) associated with motor competence (MC), 3) what is the effect of family-based PA counseling on children’s PA and MC, and 4) does initial parental support of a child’s PA moderate the counseling effect on the child’s PA? Participants consisted of a total of 126 apparently typically developing children aged 4 to 8 attending childcare or primary school. PA was measured with triaxial accelerometers, MC with the Körperkoordinationstest für Kinder (KTK) test (Kiphard &…

familymotor skillslasten kehitysliikuntaneuvontaphysical activityhomeRCT-tutkimusvanhemmatchildrenInterventioliikuntatottumuksetperhemotoriset taidotinterventionfyysinen aktiivisuuslapsetperheliikunta
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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…

family-run children’s homeslevel of engagement in realization of parenting activity.poziom zaangażowania w realizację rodzicielskiej działalnościfoster fatherojciec zastępczyrodzinne domy dzieckafoster fathersfoster fatherhoodojcostwo zastępczeojcowie zastępczyFamily Forum
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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…

filtering activityturbulencefreshwater mussel turbulence gravel bed roughness filtering activity computational fluid dynamicscomputational fluid dynamicsfreshwater musselSettore ICAR/06 - Topografia E CartografiaGravel bed Bed roughness Numerical Simulations Flow Field Turbulence StructureSettore ICAR/01 - IdraulicaWater Science and Technologygravel bedroughness
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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…

financial analysisfinanšu analīzesaimnieciskās darbības analīzeanalysis of economic activityEkonomikaauto remonta un apkopes nozare
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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, …

finger gamesSkolas pedagoģijacognitive processpirkstu rotaļaspedagogical activity
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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…

fitness testsStanding broad jumpAdolescentAdolescents; ASSO Project; Fitness tests; Health education; Physical fitness; School context; Public Health Environmental and Occupational HealthPhysical fitnessApplied psychologylcsh:Medicineschool contextMotor ActivityLower bodyhealth educationMedicineHumansField basedadolescentsShuttle run testReliability (statistics)SchoolsHand Strengthbusiness.industryEnvironmental and Occupational Healthlcsh:RASSO projectPublic Health Environmental and Occupational HealthFitness testReproducibility of ResultsPhysical fitneGeneral MedicineTest (assessment)Physical FitnessExercise TestHealth educationPublic HealthbusinessInternational journal of occupational medicine and environmental health
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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.

fiziskās aktivitātesuztvertais stressperceived stressphysical activityPsiholoģija
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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…

flavonoidsantioxidant activityCetraria islandica phenolic compoundsphytochemical screeningInternational Journal of PharmTech Research
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