As learning organizations e os profissionais da informação

The paper focuses on the concept of Learning Organization, its tools and methodologies for supporting the organizations in continued learning. It present the learning modes in Corporate Universities and different information needs of their public. It discusses the role of information professionals in the Learning Organizations and the different types of organizational knowledge

Evolutionary dynamics of higher-order interactions in social networks

We live and cooperate in networks. However, links in networks only allow for pairwise interactions, thus making the framework suitable for dyadic games, but not for games that are played in groups of more than two players. Here, we study the evolutionary dynamics of a public goods game in social systems with higher-order interactions. First, we show that the game on uniform hypergraphs corresponds to the replicator dynamics in the well-mixed limit, providing an exact theoretical foundation to study cooperation in networked groups. Secondly, we unveil how the presence of hubs and the coexistence of interactions in groups of different sizes affects the evolution of cooperation. Finally, we apply the proposed framework to extract the actual dependence of the synergy factor on the size of a group from real-world collaboration data in science and technology. Our work provides a way to implement informed actions to boost cooperation in social groups

Is ingestion of Thasus gigas (Xamues) an alimentary culture or an auxiliary treatment for type II diabetes?

Background: Diabetes is a disease characterized by high blood glucose levels that result from the body's inability to produce and/or use insulin.Among different types of diabetes, type II diabetes is the most common. This work studied the causes and effects of Thasus gigas on the population of Actopan, Hidalgo regarding its ingestion and utility in the treatment of type II diabetes.Material and Methods: An exploratory study was carried out based on a survey conducted among the residents of Actopan, Hidalgo suffering fromdiabetes mellitus (type II). In order to investigate the effect of the  ingestion of insects “xohues” or “shamues”, a study was conducted on 100 adults among the population of Actopan, Hidalgo in order to get  information on Thasus gigas consumption. The study was designed to identify the relationships between its usage, effects on human health, the reasons for its consumption by the Actopan community; either for cultural matters or as an alternative treatment to manage type II diabetes.Results: Of the 100 persons surveyed, 39 were diabetic, 29 made medical outpatient visits. Among these, 21 had eaten Xamues to manage theirdiabetes while 21.5% replaced their medical treatment with Xamues. Of the 53% of the people who ingested Xamues as an alternative for their  disease, 13% abandoned their medical treatment while 33% consumed them for alimentary culture.Conclusion: People who have stopped attending medical checkups are at risk, because there is no evidence that ingestion of these insects can regulate blood glucose levels.Key words: Alimentary culture, medical treatment, Thasus gigas, type II diabetes

Characteristic Evolution and Matching

I review the development of numerical evolution codes for general relativity based upon the characteristic initial value problem. Progress in characteristic evolution is traced from the early stage of 1D feasibility studies to 2D axisymmetric codes that accurately simulate the oscillations and gravitational collapse of relativistic stars and to current 3D codes that provide pieces of a binary black hole spacetime. Cauchy codes have now been successful at simulating all aspects of the binary black hole problem inside an artificially constructed outer boundary. A prime application of characteristic evolution is to extend such simulations to null infinity where the waveform from the binary inspiral and merger can be unambiguously computed. This has now been accomplished by Cauchy-characteristic extraction, where data for the characteristic evolution is supplied by Cauchy data on an extraction worldtube inside the artificial outer boundary. The ultimate application of characteristic evolution is to eliminate the role of this outer boundary by constructing a global solution via Cauchy-characteristic matching. Progress in this direction is discussed.Comment: New version to appear in Living Reviews 2012. arXiv admin note: updated version of arXiv:gr-qc/050809

Mental health problems among medical students in Brazil: a systematic review and meta-analysis

Objective: To provide a comprehensive picture of mental health problems (MHPs) in Brazilian medical students by documenting their prevalence and association with co-factors. Methods: We systematically searched the MEDLINE/PubMed, SciELO, LILACS, and PsycINFO databases for cross-sectional studies on the prevalence of MHPs among medical students in Brazil published before September 29, 2016. We pooled prevalences using a random-effects meta-analysis, and summarized factors associated with MHP. Results: We included 59 studies in the analysis. For meta-analyses, we identified the summary prevalence of different MHPs, including depression (25 studies, prevalence 30.6%), common mental disorders (13 studies, prevalence 31.5%), burnout (three studies, prevalence 13.1%), problematic alcohol use (three studies, prevalence 32.9%), stress (six studies, prevalence 49.9%), low sleep quality (four studies, prevalence 51.5%), excessive daytime sleepiness (four studies, prevalence 46.1%), and anxiety (six studies, prevalence 32.9%). Signs of lack of motivation, emotional support, and academic overload correlated with MHPs. Conclusion: Several MHPs are highly prevalent among future physicians in Brazil. Evidence-based interventions and psychosocial support are needed to promote mental health among Brazilian medical students

Characteristic Evolution and Matching

I review the development of numerical evolution codes for general relativity based upon the characteristic initial value problem. Progress is traced from the early stage of 1D feasibility studies to 2D axisymmetric codes that accurately simulate the oscillations and gravitational collapse of relativistic stars and to current 3D codes that provide pieces of a binary black spacetime. A prime application of characteristic evolution is to compute waveforms via Cauchy-characteristic matching, which is also reviewed.Comment: Published version http://www.livingreviews.org/lrr-2005-1