Search results for "sig"
showing 10 items of 19670 documents
Appearance before performance? : Nutritional constraints on life‐history traits, but not warning signal expression in aposematic moths
2020
1.Trade‐offs have been shown to play an important role in the divergence of mating strategies and sexual ornamentation, but their importance in explaining warning signal diversity has received less attention. In aposematic organisms, allocation costs of producing the conspicuous warning signal pigmentation under nutritional stress could potentially trade‐off with life‐history traits and maintain variation in warning colouration. 2. We studied this with an aposematic herbivore Arctia plantaginis (Arctiidae), whose larvae and adults show extensive variation in aposematic colouration. In larvae, less melanic colouration (i.e. larger orange patterns) produces a more efficient warning signal aga…
Multimodal Aposematic Signals and Their Emerging Role in Mate Attraction
2018
Virus-cell interactions as a pathological mechanism of parvovirus infection
2014
La Géométrie pour l'Unicité, la Parcimonie et l'Appariement des Estimateurs Pénalisés
2022
During the talk we will give a necessary and sufficient condition for the uniqueness of a penalized least squares estimator whose penalty term is a polyhedral norm. Our results cover many methods including the OSCAR, SLOPE and LASSO estimators as well as the related method of basis pursuit. The geometrical condition for uniqueness involves how the row span of the design matrix intersects the faces of the dual normunit ball. Theoretical results on sparsity by LASSO and basis pursuit estimators are deduced from this condition via the characterization of accessible sign vectors for these two methods.
García Manrique, Ricardo. Se vende cuerpo. El debate sobre la venta de órganos. Barcelona: Herder, 2021
2021
Reseña de: García Manrique, Ricardo. Se vende cuerpo. El debate sobre la venta de órganos. Barcelona: Herder, 2021.
Incidentality on a continuum: A comparative conceptualization of incidental news consumption
2020
This article seeks to contribute to theorizing the dynamics of incidental news consumption. Through an analysis of 200 semi-structured interviews with people in Argentina, Finland, Israel, Japan, and the United States, we show that intentionality in news consumption can be viewed on a continuum, which goes from deliberately setting apart time to access the news on specific outlets to skimming through unsought-for news on social and broadcast media, with intermediate practices such as respondents setting up an environment where they are more or less likely to encounter news. Drawing on structuration theory, this article conceptualizes incidental news in the context of the wider media environ…
Enhancing web course design using action research
2010
Applying Affordances Scale as a Design Method : Case Virtual Reality Course Design
2021
Practitioners including designers and teachers developing Virtual Reality (VR) courses are facing a question regarding the strengths and subject areas in which VR-enriched courses might have the highest potential compared to conventional courses. The present study develops a survey scale to assess and match industry managers’ requirements for skills for working life. The same scale was surveyed among two different groups of higher education students participating in conventional courses and a VR-aided course. The results indicate that the industry requirements were higher than met by the both course types. However, the results highlight a set of skills for which the VR courses have the high…
The extent of empirical evidence that could inform evidence-based design of programming languages : a systematic mapping study
2014
Darba un vides riski dzelzceļa signalizācijas, sakaru un elektrobarošanas sistēmu būvdarbos. Vadlīnijas risku novēršanā.
2015
„Darba un vides riski dzelzceļa signalizācijas, sakaru un elektrobarošanas sistēmu būvdarbos. Vadlīnijas risku novēršanā”. Darba autors: Viktors Silkāns. Darba zinātniskais vadītājs: profesors Dr. chem. Andris Alfrēds Spricis. Darbs izklāstīts uz 76 lpp., ietver 21 attēlus, 10 tabulas, 6 pielikumus, 47 informatīvos avotus. Pētījums sastāv no 5 daļām. Pirmajā daļā ir apkopota un analizēta literatūra par darba vides un vides riskiem dzelzceļa signalizācijas būvdarbos. Otrajā daļā - pētījumā lietotās metodes. Trešajā - iegūto datu apkopošana un rezultātu analīze. Ceturtajā - vadlīnijas darba vides risku novēršanā. Noslēgumā secinājumi un praktiskas rekomendācijas. Iegūtie pētījuma rezultāti ļa…