Search results for "lek"
showing 10 items of 2808 documents
NiO režģa dinamikas pētījumi ar apgriezto Monte-Karlo metodi
2022
NiO režģa dinamika tika izpētīta pie septiņām temperatūrām no 10K līdz 300K, izmantojot Ni K malas rentgenabsorbcijas spektroskopiju apvienojumā ar apgrieztā Monte Carlo simulācijām. Salīdzinājumam veica režģa dinamikas aprēķinus ar empīrisko potenciālu. Potenciāla modeli apstiprināja, salīdzinot eksperimentālos NiO Ni K malas izstieptās rentgenabsorbcijas sīkstruktūras (EXAFS) spektrus ar molekulārās dinamikas modelēšanas rezultātiem pie 300 K. Ni-O un Ni-Ni atomu pāru vidējās kvadrātiskās relatīvās nobīdes (MSRD) noteica ar divām metodēm un salīdzināja ar literatūrā pieejamajiem datiem.
Trajectories of reading development: A follow-up from birth to school age of children with and without risk for dyslexia
2006
In order to understand why some children are vulnerable to difficulties in their language development and their acquisition of reading skill, the Jyväskylä Longitudinal Study of Dyslexia followed 200 Finnish children from birth to school age. Half of these children had a family history of reading problems and were considered at risk for dyslexia; the other half were not at risk. A novel analysis, mixture modeling, revealed four subgroups with differential developmental trajectories to early reading. The subgroups who showed either a “dysfluent trajectory” (n = 12; 11 at risk vs. 1 control) or a “declining trajectory” (n = 35; 24 vs. 11) contained more children with familial risk for dyslexi…
Paternity, copulation disturbance and female choice in lekking black grouse
1996
Female copulation behaviour in the black grouse, Tetrao tetrix, was studied by detailed observations of individually marked birds together with DNA fingerprinting analyses for paternity assessment. For each breeding occasion females typically mated only once with one male, and did not mate outside the lek arena. They re-mated with the same or another male usually only if the initial copulation was disturbed and was probably unsuccessful in sperm transfer. The willingness of females to copulate only once with one male suggests that multiple mating with several males incurs a cost that more than outweighs any possible fertility or sperm competition benefits. Attempts by neighbouring males to …
Policy Alienation in Frontline Social Work – A Study of Social Workers’ Responses to a Major Anticipated Social and Health Care Reform in Finland
2021
Change in the policy and ideology governing social and health care has been much debated in the Western welfare states, including in Finland, where the public sector has witnessed a shift towards a market and managerial ideology in a climate of austerity. These changes affect organisations as well as individual workers. Social workers implement social policies in their daily work, and are thus positioned in between policies and clients. This may expose them to feelings of unease in the implementation of certain policies. In this study, we apply the policy alienation framework of Tummers and colleagues (2009. “Policy Alienation of Public Professionals: Application in a new Public Management …
Complexity in project co-creation of knowledge for innovation
2020
The European Union (EU) promotes collaboration across functions and borders in its funded innovation projects, which are seen as complex collaboration to co-create knowledge. This requires the engagement of multiple stakeholders throughout the duration of the project. To probe complexity in EU-funded innovation projects the research question is: How does complexity affect the co-creation of knowledge in innovation projects, according to project participants? The data for this study was collected from project experts in the form of short narratives, using a questionnaire based on the elements of complexity of Mitleton-Kelly (2003). The results indicate that complexity characterises the co-cr…
Computational Screening of Doped Graphene Electrodes for Alkaline CO2 Reduction
2020
The electrocatalytic CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR) is considered as one of the most promising approaches to synthesizing carbonaceous fuels and chemicals without utilizing fossil resources. However, current technologies are still in the early phase focusing primarily on identifying optimal electrode materials and reaction conditions. Doped graphene-based materials are among the best CO<sub>2</sub>RR electrocatalysts and in the present work we have performed a computational screening study to identify suitable graphene catalysts for CO<sub>2</sub>RR to CO under alkaline conditions. Several types of modified-graphene frame…
Do commodity assets hedge uncertainties? What we learn from the recent turbulence period?
2022
AbstractThis study analyses the impact of different uncertainties on commodity markets to assess commodity markets' hedging or safe-haven properties. Using time-varying dynamic conditional correlation and wavelet-based Quantile-on-Quantile regression models, our findings show that, both before and during the COVID-19 crisis, soybeans and clean energy stocks offer strong safe-haven opportunities against cryptocurrency price uncertainty and geopolitical risks (GPR). Soybean markets weakly hedge cryptocurrency policy uncertainty, US economic policy uncertainty, and crude oil volatility. In addition, GSCI commodity and crude oil also offer a weak safe-haven property against cryptocurrency uncer…
Ernesta Foldāta vēstule Edgaram Vimbam 1994. gada 30. decembrī
1994
Ernesta Foldāta vēstule Edgaram Vimbam, kurā viņš raksta par piedāvājumu vadīt praktiskas lekcijas tropu ekoloģijā latviešu doktorantūras studentiem, par Venecuēlā sastopamajām sēņu sugām, īpaši bekām un gailenēm, par sēņu sālīšanu ziemai. Vēstules beigās Jauna gada novēlējums. Drukāts mašīnrakstā uz 1 lapas. Glabājas Latvijas Universitātes Muzeja Botānikas un mikoloģijas kolekciju krājumā.
Design and Implementation of Deep Learning Based Contactless Authentication System Using Hand Gestures
2021
Hand gestures based sign language digits have several contactless applications. Applications include communication for impaired people, such as elderly and disabled people, health-care applications, automotive user interfaces, and security and surveillance. This work presents the design and implementation of a complete end-to-end deep learning based edge computing system that can verify a user contactlessly using &lsquo
Ekspresīvā leksika Cicerona „Runās pret Katilīnu”
2016
. Ekspresīvā leksika Cicerona „Runas pret Katilīnu”. Artis Kuģis, darba vadītāja Latvijas Universitātes Humanitāro zinātņu fakultātes Dok. Gita Bērziņa. Darbā analizēts- Visa veida ekspresīvās leksēmas no Cicerona „Runas pret Katilinu” Darba mērķis- Izpētīt un analizēt ekspresīvās leksēmas un to funkcijas Cicerona „Runas pret Katilīnu” Darba Uzdevumi- 1.Iepazīties ar tēmai atbilstošu teorētisko literatūru (sevišķi noskaidrojot ekspresīvās leksikas jēdzienu, raksturiezīmes). 2.Caurskatīt tekstu oriģinālvalodā. 3.Atlasīt leksēmas, kas atbilst ekspresīvās leksikas kritērijiem, un to izpratnei nepieciešamo kontekstu. 4.Iztulkot atlasīto materiālu un izanalizēt ekspresīvās leksēmas. 5.Izdarīt se…