Search results for "PRODUCT"
showing 10 items of 13045 documents
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…
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…
Yliopistojen tutkintokoulutuksen ja tutkimuksen rahoitus ja tulokset vuosina 2000-2004 ja 2005-2009
2010
Cane (Rattan) entreprises as family business in Bangladesh : a case study
2009
Cane (Calamus spp), also known as rattan, is an important non-timber forest product used extensively all over Bangladesh as a raw material for making furniture, handi-craft and other household articles. The study has attempted to generate information on existing state of cane based family business, identify problems, and recommend solu-tions. Structured questionnaire has been employed in the field survey. During survey it was found that about 80% enterprises are traditionally inherited to the entrepreneurs from forefathers. Family members contribute about 30% of the total labor force. Thousands of people are engaged in collecting, processing, manufacturing of cane and cane products in the s…
Evaluación microestructural de materiales nanoparticulados preparados a partir de caolines
2009
En el presente trabajo se han seleccionado dos caolines con características microestructurales muy diferenciadas, y se les ha aplicado un tratamiento mecánico con un molino de discos de giro excéntrico empleando dos accesorios de distinta efectividad; un conjunto de copa y cilindro de ágata (ag) y otro de copa, anillo y cilindro de acero recubierto de carburo de wolframio (CW). Los materiales sin tratar y los generados en la molienda se han caracterizado microestructuralmente a través de tres métodos diferentes de análisis basados en datos de difracción de rayos X, y por microscopía electrónica de barrido. Se ha complementado la caracterización de los materiales con estudios de determinació…
“Reclaiming public spaces”: Individuazione di strategie e metodi per la partecipazione della cittadinanza attiva nella produzione e gestione di spazi…
2014
A partire dall’analisi di due casi studio di (ri)appropriazione e riconversione temporanea a fini “pubblici” di aree inutilizzate, quali le appropriazioni/(ri)appropriazioni dell’ex-aeroporto di Tempelhof a Berlino e del “laghetto” in via Prenestina a Roma, l’articolo si propone di esplorare alcuni interrogativi quali: E’ possibile costituire una alternativa reale alla riduzione/sostituzione dello spazio pubblico, dovuta in gran parte ai problemi di bilancio che minacciano l’operatività delle amministrazioni locali, valorizzando le esperienze di auto-organizzazione, auto-gestione e partecipazione emerse nelle nostre città? Come interpretare/tradurre in strategie e metodi operativi la pressa…
Do allopatric male Calopteryx virgo damselflies learn species recognition?
2012
There is a growing amount of empirical evidence that premating reproductive isolation of two closely related species can be reinforced by natural selection arising from avoidance of maladaptive hybridization. However, as an alternative for this popular reinforcement theory, it has been suggested that learning to prefer conspecifics or to discriminate heterospecifics could cause a similar pattern of reinforced premating isolation, but this possibility is much less studied. Here, we report results of a field experiment in which we examined (i) whether allopatric Calopteryx virgo damselfly males that have not encountered heterospecific females of the congener C. splendens initially show discri…
Surrogacy relationships: a critical interpretative review
2020
Abstract Based on a critical interpretative review of existing qualitative research investigating accounts of ‘lived experience’ of surrogates and intended parents from a relational perspective, this article proposes a typology of surrogacy arrangements. The review is based on the analysis of 39 articles, which belong to a range of different disciplines (mostly sociology, social psychology, anthropology, ethnology, and gender studies). The number of interviews in each study range from as few as seven to over one hundred. Countries covered include Australia, Canada, Greece, India, Iran, Israel, Italy, Mexico, Norway, Russia, Sweden, UK, Ukraine, and the USA. Most studies focus only on surrog…
Reliģiski-filozofiski raksti, XXXI
2021
The articles of Latvian and foreign researchers published in this issue represent various branches of humanities and social sciences. Researchers have used various research methods to help understand the research potential of scientific atheism and Soviet spirituality phenomena and their versatility and multi-layered nature.