Search results for "Elf"
showing 10 items of 5893 documents
Goals and guesses as reference points: a field experiment on student performance
2022
In this paper, we study overconfidence and goal-setting in academic performance, with and without monetary incentives. Students enrolled in a microeconomics course were offered the possibility of setting their own target grade before taking part in the final exam. They were also asked to guess their grade immediately after they had taken the exam (“post-diction”). In general, students overestimated their performance, both at the goal-setting and at the post-diction stages. Controlling for several sources of this bias (cognitive abilities, academic record and self-reported academic confidence), we find that the use of monetary rewards mitigates the overestimation of potential achievements an…
Le droit à l’autodétermination du peuple palestinien
2016
The right of the Palestinian people to liberate themselves from foreign occupation in the name of the principle of self-determination has played, and is playing today, a central role in the resolution of the Arab-Israeli problem, representing a real catalyst principle in a process which, unfortunately, remains unfinished. The question today revolves around the fulfilment of an obligation to negotiate conventionally accepted by the parties, considered without alternative by the international community, but which in practice translates into a right of veto over the exercise of self-determination, contradicting the inalienable nature of this principle. Self-determination thus becomes negotiabl…
3D nanoscale ordered architectures in thin films for organic electronics
2011
Order in molecular thin films is of fundamental importance to gain and exploit a series of properties in nanotechnology. In this contest, engineering 2D supramolecular and molecular superstructures is of particular interest. They offer great possibilities for several applications whose achievement also allows for new theoretical approaches and nanoscale laws [1]. A natural extension of 2D nanopatterning concerns the attainment of a 3D nanoscale control in molecular films [2]. This question is complex to challenge and it is of ultimate importance in emerging fields like organic and hybrid photovoltaics, organic thin film transistors and sensors as well as plastic electronics. For example, th…
Kognitīvo izkropļojumu saistība ar Es-koncepciju
2018
Pētījuma jautājumi: Kādas saistības pastāv starp dažādu kognitīvo izkropļojumu veidu izmantošanu un Es-koncepciju? Vai pastāv dzimumatšķirības kognitīvo izkropļojumu veidu izmantošanas biežumā/izteiktībā un Es-koncepcijas rādījumos? Vai un kā Es-koncepcijas un kognitīvo izkroplojumu izmantošanas biežuma saistības atšķiras sieviešu un vīriešu grupās? Izmantotās metodes: Kognitīvo izkropļojumu skala (Covin et. al., 2011), Negatīvo pārliecību skala, (Roberts, 2015) un Es-koncepcijas aptauja (Robson, 1989). Respondenti: 178 respondenti (no kuriem 106 sievietes), vecumā no no 16 līdz 74. Pētījuma rezultāti: kopumā pastāv statistiski nozīmīgas negatīvas saistības starp Es-koncepciju un kognitīvaj…
Biotekstila antimikrobiālo īpašību un aizsardzības pret dažādu frekvenču elektromagnētiskajiem laukiem noteikšana
2022
Pieaugot pilsētvides nelabvēlīgajiem faktoriem ar dažādu spektru elektromagnētisko lauku avotiem, tiek izstrādāti biomateriāli ar patērētājam aizsargājošām īpašībām. Dzintara un silīcija dioksīda mikro- un nanodaļiņas tiek pētītas kā potenciāls rindu materiāls integrācijai biotekstilmateriālu šķiedrās. Pētījuma mērķis bija adaptēt metodes biotekstilmateriālu aizsargājošo īpašību noteikšanai pret dažādu frekvenču elektromagnētiskajiem laukiem un novērtēt antimikrobiālās biotekstila īpašības. Dzintara biotekstils uzrāda aizsargājošu efektu pret ultravioletajiem stariem (UV-B) un īpaši zemu elektromagnētisko lauku (ELF-EML) ar modeļobjektiem Chaetomium globosum, Aspergillus niger un Escherichi…
Les déterminants sociodémographiques et culturels de l'initiation de l'allaitement en France au XXIe siècle
2019
National audience
e-Health and the Internet of Things. Definitions, applications, regulation, actors. Roadmap to a use cases research.
2015
This reports deals with the electronic health (e-Health) as a prism to study the Internet of Things. After having provided the necessary definitions and having described applications, regulators, regulations and actors both in the UK, in the US and in the EU, the author sets the basis for a use cases research regarding the e-prescribing.
Individual vulnerability to stress is associated with increased demand for intravenous heroin self-administration in rats
2019
AbstractOpioid use is a widespread epidemic, and traumatic stress exposure is a critical risk factor in opioid use and relapse. There is a significant gap in our understanding of how stress contributes to heroin use, and there are limited studies investigating individual differences underlying stress reactivity and subsequent stress-induced heroin self-administration. We hypothesized that greater individual vulnerability to stress would predict higher demand for heroin self-administration in a within-subjects rodent model of stress and heroin use comorbidity. Male rats were exposed to inescapable intermittent swim stress and individual biological (corticosterone) or behavioral (open field, …
Informational interactions and the future of cities
1998
Present-day city growth is chiefly the result of new tertiary activities such as financial and producer services, R&D, or business administration. It seems that these activities need to be more spatially concentrated than traditional manufacturing activities. These new trends affect both the structure of cities and the structure of city systems. The specific nature of the new activities concentrated in city centers makes them information intensive. These activities consume human capital, knowledge and hightech capital, which are all rapidly changing inputs; they are based on complex decisionmakingprocesses; this renders them highly information-dependent. Inasmuch as these activities are the…
Análisis de la evolución del Estado de Bienestar como elemento necesario para el desarrollo de la Economía Social y nexo para la implementación de ec…
2022
La crisis financiera que tuvo lugar en 2008 puso al descubierto la fragilidad y eficiencias del sistema económico mundial y, en particular, de la tendencia a capitalizar los aspectos sociales de una economía. La crítica al capitalismo, como el sistema imperante, es extensa y prolongada; sin embargo, la búsqueda de modelos económicos alternativos se ha intensificado. La Economía Social y Solidaria, como elemento socializador de la economía de capital o como un punto de partida hacia un modelo más socialmente responsable, ha surgido como una alternativa responsable, viable y científicamente respalda. Aun así, este concepto requiere de mecanismos de distribución que permitan a los actores econ…