Search results for "Forma"
showing 10 items of 34540 documents
Assays for detection of fungal hallucinogens such as psilocybin and psilocin
2016
Methods applicable to the detection of hallucinogenic indole compounds, namely psilocybin, psilocin, and related molecules, that have been developed so far for purposes of mycological research, toxicological studies, or forensic investigations are described in this chapter. The most current literature as well as some interesting older publications are cited, providing a historical overview of the subject. Methods of qualitative and quantitative analysis are presented. Additionally, preliminary purification steps and sample treatment before the exact quantitative determination are proposed. The methods described utilized various analytical techniques for the measurement of psilocybin/psiloci…
Self-regulated learning, self-efficacy beliefs and performance during the late childhood
2010
This article analyzes relations between self-regulated learning, self-efficacy beliefs, and performance in tasks of solving arithmetic problems. The research includes 268 six-year-old students enrolled in the first year of primary school in Spain. The results from binary logistic regression models indicate that self-regulated learning and its interaction with self-efficacy beliefs predict performance. Finally, the cluster analysis shows four profiles of students: i) positive adjusted; ii) negative unadjusted I; iii) negative unadjusted II y; iv) negative adjusted.. Este artículo analiza relaciones entre el aprendizaje autorregulado, las creencias de autoeficacia y el desempeño en tareas de …
Advancing Design Science Research with Solution-based Probing
2019
We propose solution-based probing as an extension of action design research. The core idea is that researchers bring a prototype solution (probe) into one or more fields and explore to synthesize robust and generalizable design knowledge, along with knowledge of the phenomena and correlations we discover. We believe proposing solutions creates opportunities for researchers to innovate and to document the impact. In addition, solutions can be effective probes for advancing theory, in terms of design theories and in creating exploratory foundations for behavioral and causal theory. We illustrate solution-based probing with four exemplar studies in the areas governance of municipalities, polic…
Combined Use of Structure Analysis, Studies of Molecular Association in Solution, and Molecular Modelling to Understand the Different Propensities of…
2021
The arrangement of hydroxyl groups in the benzene ring has a significant effect on the propensity of dihydroxybenzoic acids (diOHBAs) to form different solid phases when crystallized from solution. All six diOHBAs were categorized into distinctive groups according to the solid phases obtained when crystallized from selected solvents. A combined study using crystal structure and molecule electrostatic potential surface analysis, as well as an exploration of molecular association in solution using spectroscopic methods and molecular dynamics simulations were used to determine the possible mechanism of how the location of the phenolic hydroxyl groups affect the diversity of solid phases formed…
Somatoforma veģetatīva disfunkcija farmaceita praksē
2020
Ar terminu “somatoforma veģetatīva disfunkcija” (SVD) tiek apzīmēti ķermeņa funkciju un sajūtu traucējumi, gadījumos, kad objektīvs un medicīniski izskaidrojams šo traucējumu iemesls netiek atrasts. Cilvēki ar SVD izjūt dažādus simptomus, piemēram, trauksmi, nemieru, paaugstinātu uzbudināmību, sāpes, kuņģa-zarnu trakta darbības traucējumus, sirds un asinsvadu sistēmas traucējumus, kas izraisa pastāvīgu uztraukumu un diskomfortu. Šie pacienti pārmērīgi meklē medicīnisko palīdzību un mierinājumu, bet viņiem ir grūti pieņemt ne patoloģiskus rezultātus medicīniskajā izmeklēšanā. SVD ir grūti diagnosticējama un prasa vairāku speciālistu palīdzību, ka arī paša cilvēka izturību un līdzestību. SVD …
miMic
2016
miMic, a sonic analogue of paper and pencil is proposed: An augmented microphone for vocal and gestural sonic sketching. Vocalizations are classified and interpreted as instances of sound models, which the user can play with by vocal and gestural control. The physical device is based on a modified microphone, with embedded inertial sensors and buttons. Sound models can be selected by vocal imitations that are automatically classified, and each model is mapped to vocal and gestural features for real-time control. With miMic, the sound designer can explore a vast sonic space and quickly produce expressive sonic sketches, which may be turned into sound prototypes by further adjustment of model…
Development of microfluidics for sorting of carbon nanotubes
2018
Sorting of carbon nanotubes by their chirality is the current bottleneck in the way to their broad employment based on their exceptional electronic and optical properties. Despite the extensive effort, there is no known method, which would result in really pure chirality ensembles. Previously reported sorting protocols result in enrichment rather than in sorting, alter electronic structure, and suffer from low yield. This is mostly due to the statistical approach, where the nanotubes with mixed chiralities are treated as a set. In this thesis, we propose a new sorting technique based on nanotube-by-nanotube compartmelization, characterization, and sorting in a continuously running droplet-b…
La Lingua dei Segni e le nuove tecnologie. Variazioni e modifiche nella lingua e nella percezione dei segnanti
Il lavoro di ricerca affronta le problematiche relative ai nuovi scenari della comunicazione e della formazione per le persone sorde che fanno uso della Lingua dei Segni Italiana nella società delle nuove tecnologie. La tesi pertanto dà alcuni accenni relativi alla sordità, espone le caratteristiche specifiche della Lingua dei Segni e della scrittura dei sordi, presenta il mondo delle nuove tecnologie sia in ambito comunicativo che formativo, analizzando il panorama del Web 2.0, i social network e i nuovi strumenti della formazione quali le piattaforme didattiche e gli ambienti di e-learning. Il lavoro propone inoltre una riflessione su come il linguaggio e la comunicazione siano cambiate n…
Sosiaalisen median kommenttien analyysi multimodaalisesta näkökulmasta digitaalisen journalismin ja poliittisen viestinnän tutkimuksessa
2021
Societal discussions flow on social media platforms that are studied by researchers in multiple ways and through various kinds of data sets that are extracted from them. In the studies of these discussions, multimodality unravels the semiotic modes that are communication resources through which meanings are socially and culturally created and expressed. In addition, the viewpoint of affordances can be used for viewing the functions of social media platforms and their discussions. Furthermore, this review was conducted to better understand how social media comments are researched from the perspective of multimodality in the context of digital journalism and political communication. A systema…