Search results for "Rod"
showing 10 items of 22124 documents
Burst analysis tool for developing neuronal networks exhibiting highly varying action potential dynamics
2012
In this paper we propose a firing statistics based neuronal network burst detection algorithm for neuronal networks exhibiting highly variable action potential dynamics. Electrical activity of neuronal networks is generally analyzed by the occurrences of spikes and bursts both in time and space. Commonly accepted analysis tools employ burst detection algorithms based on predefined criteria. However, maturing neuronal networks, such as those originating from human embryonic stem cells (hESCs), exhibit highly variable network structure and time-varying dynamics. To explore the developing burst/spike activities of such networks, we propose a burst detection algorithm which utilizes the firing …
Metsienkäsittely keruutuotesatojen ja puutulojen samanaikaiseen tuottamiseen metsämaisemassa
2016
Tutkimusseloste artikkelista: Peura,M,, Triviño, M., Mazziotta, A., Podkopaev, D., Juutinen, A., Mönkkönen, M. (2016). Managing boreal forests for the simultaneous production of collectable goods and timber revenues. Silva Fennica vol. 50 no. 5 article id 1672. http://dx.doi.org/10.14214/sf.1672 nonPeerReviewed
Pyrolytic behavior of lignocellulosic-based polysaccharides
2018
The thermochemical behavior of cellulose, glucomannan, and xylan was investigated by pyrolysis–gas chromatographymass spectrometry (Py-GC/MS). In each case, major GC-amenable condensable products were classified into several compound groups, and the formation of these monomer-related fragments from the model substance samples was determined at 500, 600, and 700 C with a residence time of 5 s and 20 s. The results revealed that despite some general formation trends, no compound group was selectively formed at certain temperatures. Of the 11 product groups, the primary ones, including lactone, furan, and cyclopentenone derivatives, accounted for 72–85% (from cellulose), 86–90% (from glucomann…
Statistical misconceptions, awareness, and attitudes towards open science practices in Slovak psychology researchers
2023
In the years following the reproducibility crisis in behavioral sciences, increased attention of the scientific community has been dedicated to the correct application of statistical inference and promotion of open science practices. In the present survey, we contacted psychology researchers, lecturers, and doctoral students from all universities in Slovakia and the Slovak Academy of Sciences via email. Together we re-ceived answers from 65 participants. Questions in the survey covered the most common misconceptions about statistical hypothesis testing, as well as awareness, attitudes, and barriers related to the adherence to open science practices. We found a high prevalence of statistical…
Uztura saistība ar depresijas simptomiem sievietēm
2020
Šī pētījuma mērķis bija noskaidrot, vai pastāv saistība starp uzturu un depresijas simptomiem un, ja pastāv, kuru pārtikas produktu patēriņam šo saistību var novērot. Tikai ievākti dati par respondentu norādīto pārtikas produktu un dzērienu patēriņu (uztura biežuma aptauja) un pašnovērtējumu depresijas, trauksmes un stresa skalās (DASS-42) sieviešu izlasē (N=73). Rezultāti norāda uz liellopu gaļas, olu un saldinātu tēju patēriņa vāju, bet statistiski nozīmīgu saistību ar depresijas skalu (3 no 35 pārtikas produktu grupu patēriņiem), un kas izskaidro 12% no depresijas rādītāju variācijas pat tad, kad tiek kontrolētie manīgie lielumi - smēķēšanas statuss, ķermeņa masas indekss, saslimšana, ka…
Pārtikas produktu un ēdienu porciju fotoattēlu atlanta papildināšana un iegūto fotoattēlu izvērtēšana
2018
"Pārtikas produktu un ēdienu fotoattēlu atlantu" izmanto dažādos pārtikas patēriņa pētījumos. Latvijā izmantotais atlants ir izdots 2007. gadā - bija nepieciešams to papildināt ar dažādiem pārtikas produktiem un ēdieniem. Papildinājuma izstrādes laikā bija nepieciešams izvēlēties pārtikas produktus un ēdienus, kurus pievienot. Kā arī, bija nepieciešams sagatavot to fotoattēlus un novadīt klātienes (validācijas) sesijas, kurās dalībnieki izvērtēja reālus porciju lielumus ar iegūtajiem fotoattēliem. Fotoattēlu iegūšanā, validācijā un datu apstrādi veica pārsvarā vadoties pēc diviem EFSA protokoliem - EFSA PANCAKE un EFSA PILOT-PANEU. Katras fotoattēlu sērijas rezultātus izvērtēja un, balstoti…
Buone pratiche e strumenti di analisi per l’apprendimento, l’insegnamento e l’inclusione
2022
Il presente lavoro, nato in seno al progetto di ricerca “Best practices and tools of analysis in schools and community contexts: learning, teaching & inclusion”, avviato su fondi del Dipartimento SPPEFF dell’Università di Palermo, nel marzo 2019 e giunto alla sua seconda fase. La metodologia di ricerca utilizzata – perché ritenuta adeguata a perseguire le finalità fissate e a fornire una visione complessa ed articolata del fenomeno investigato – è stata quella del Mixed Method, con particolare riferimento all’Explanatory Design: Participant Selection Model di Creswell, Plano Clark, et al. (2003). L’«Explanatory Design is a two-phase mixed methods design. The overall purpose of this desi…
Analysis of the determinants of entrepreneurial intention: the case of Burkina Faso
2018
International audience; In this study, we propose to analyze students' entrepreneurial intention, drawing on Lazear's (2004) self-selection model. This model captures the role of "human capital" in employment assignment and emphasizes the importance of the variety of skills in the individual's entrepreneurial orientation. For this purpose, we have a database collected in 2017 from over 1000 students at Ouaga I and Ouaga II universities in Burkina Faso. The results of estimates obtained using the quantile regression method show a positive and significant effect of the diversity of skills on the intention score, mainly at the median level. Even if the effect is not strong, this result support…
The reactivity of neonatal rabbits to the mammary pheromone as a probe for viability
2012
International audience; Newborn rabbits depend on a daily nursing interaction with the mother to gain milk and to survive. During this interaction, they localise and seize the nipples displaying a typical behaviour triggered by maternal odour cues. The mammary pheromone constitutes such a signal in domestic rabbits: it elicits sucking-related movements in more than 90% of the pups. However, some newborns remain unresponsive to the presentation of the pheromone, even pups apparently healthy and highly motivated to suck. The main goal of the present study was therefore to explore the link between the unresponsiveness of rabbit pups to the mammary pheromone and their growth and survival in bre…
Numerical treatment of radiation processes in the internal shocks of magnetized relativistic outflows
2017
Los blázares son un tipo de núcleo activo de galaxia (AGN, por sus siglas en inglés) que se encuentran entre los objetos astrofísicos más energéticos y violentos, a la par de los brotes de rayos gamma (GRB por sus siglas en inglés). Los procesos físicos y, en particular, el escenario del chorro relativista en el que se genera la radiación ultraenergética detectada por observatorios terrestres y en órbita, han conseguido atraer la atención e interés de los astrónomos y astrofísicos desde su descubrimiento. En la presente tesis investigamos el modelo de choques internos (IS) cuya hipótesis consta del choque de dos capas de plasma con geometría cilíndrica, formando dos ondas de choque que atra…