305,367 research outputs found
Burnout, percezione lavorativa e reazione allo stress professionale negli operatori di un Dipartimento di Salute Mentale: una indagine esplorativa
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Emotion regulation and its correlates in bank service jobs
No full textTo what extent, in what context and with what psychological consequences do service workers regulate their emotions so that they are in line with their job requirements? To answer these questions 112 Italian men and women working at various banks at the counter or as consultants were administered a questionnaire comprising several scales, and questions on sociodemographic and work-related variables. The results showed that Emotional labour (Hochschild 1983; Grandey 2000) is a relevant variable of bank service jobs: Workers perform both (a) surface acting, i.e., control the expression of their emotions vis-à-vis a client so that they are contextually appropriate (for example, they smile to an annoying client), and (b) deep acting, i.e., try to actually feel the required emotion; (c) feeling genuine emotions, i.e., effortlessly feeling the required emotions, also is a frequent experience of bank employees. Emotional exhaustion was correlated positively with surface acting, and negatively with genuine emotions; it implied less Life satisfaction, and Positive affect, but more Negative affect. Workers that reported enjoying a role balance were more satisfied with their life than those who experienced role overload, and were less emotionally exhausted. No significant differences between men and women were observed on most measures, whereas job-experience, and duration and frequency of client-interactions influenced Deep acting, Emotional exhaustion, and Role overload
POSSÍVEIS CONTRIBUIÇÕES DE UM TRABALHO COM NARRATIVAS DE VIDA PARA O DESENVOLVIMENTO PESSOAL E PROFISSIONAL DE ALUNOS DO ENSINO MÉDIO-TÉCNICO PROFISSIONALIZANTE
No full textAtualmente, o ensino-aprendizagem de línguas para fins específicos tem sido focado em gêneros textuais e temas avaliados como relevantes para o meio profissional e/ou acadêmico no qual os estudantes possivelmente atuarão (RAMOS, 2004; BEATO-CANATO, 2011). Todavia, no ensino de nível médio-técnico profissionalizante, a disciplina engloba objetivos mais amplos referentes ao desenvolvimento dos aprendizes como cidadãos. O objetivo deste texto é relatar um trabalho realizado que buscou abranger a formação profissional e pessoal de adolescentes, ao contemplar documentários sobre o tema da unidade – A história da Química -, biografias de cientistas famosos, narrativas de vida, entrevistas com docentes e funcionários e produção de vídeos. É possível dizer que os resultados superaram as expectativas e permitiram o desenvolvimento individual e coletivo pessoal e profissional dos participantes
Comparison of classical, stealth and super-stealth liposomes for intravenous delivery of lumefantrine: Formulation, characterization and pharmacodynamic study
No full textPurpose: To develop and compare classical liposomes (CL), stealth liposomes (SL) and super-stealth liposomes (SSL) encapsulating lumefantrine for intravenous administration. Method: CL, SL or SSL were prepared by thin-layer evaporation method and evaluated for particle size, polydispersity index (PdI), encapsulation efficiency and short-term stability. Pharmacodynamic study using mice infected with Plasmodium berghei was also carried out. Results: The particle sizes (nm) and PDI of the liposomes were: CL (248 ± 44.89; 0.78 ± 0.02), SL (235.8 ± 45.18; 0.39 ± 0.06) and SSL (238.2 ± 23.0; 0.24 ± 0.04). Encapsulation efficiency was highest in SSL (66 %), followed by SL (44.4 %) and then by CL (42.5 %). SSL was the most stable after 72 h of storage. In vivo, lumefantrine produced significant reduction in parasitaemia after 7 days (p < 0.05) by SSL (68.3 ± 8.9 %) followed by CL (55.8 ± 15.2 %) and then SL (53.4 ± 14.9 %). Conclusion: SSL formulation of lumefantrine exhibits good physicochemical and pharmacodynamic potentials and should be further investigated in future studies for the treatment of malaria
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
The evolution of polymer conjugation and drug targeting for the delivery of proteins and bioactive molecules
No full textPolymer conjugation can be considered one of the leading approaches within the vast field of nanotechnology-based drug delivery systems. In fact, such technology can be exploited for delivering an active molecule, such as a small drug, a protein, or genetic material, or it can be applied to other drug delivery systems as a strategy to improve their in vivo behavior or pharmacokinetic activities such as prolonging the half-life of a drug, conferring stealth properties, providing external stimuli responsiveness, and so on. If on the one hand, polymer conjugation with biotech drug is considered the linchpin of the protein delivery field boasting several products in clinical use, on the other, despite dedicated research, conjugation with low molecular weight drugs has not yet achieved the milestone of the first clinical approval. Some of the primary reasons for this debacle are the difficulties connected to achieving selective targeting to diseased tissue, organs, or cells, which is the main goal not only of polymer conjugation but of all delivery systems of small drugs. In light of the need to achieve better drug targeting, researchers are striving to identify more sophisticated, biocompatible delivery approaches and to open new horizons for drug targeting methodologies leading to successful clinical applications. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Toxicology and Regulatory Issues in Nanomedicine > Regulatory and Policy Issues in Nanomedicine
Fidarsi e' bene...se sei affidabile!
No full textIl mercato sembra richiedere alle imprese sempre maggiore capacità di azione in un contesto incerto e in continuo cambiamento. La sfida da raccogliere è, da un lato, la capacità di utilizzare processi operativi, cioè strutture organizzative che sianoefficienti ed economicamente profittevoli, e, dall’altro, occorre comprendere come pianificare senza costruire semplici strumenti burocratici che risultano obsoleti dopo poche settimane.Le organizzazioni ad alta affidabilità (High Reliability Organization - HRO) sono oggetto di studio ormai da alcuni anni con l’obiettivo di scovare i “segreti” che permettono loro di operare con pochi errori e grande efficienza.Questo articolo ha l’obiettivo di portare il lettore a intraprendere un viaggio interessante nel mondo delle organizzazioni ad alta affidabilità, evidenziandone i principali principi organizzativi
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