984 resultados para Crise atual
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Cet article cherche à dresser, sous la perspective historique, le bilan de la situation des pays périphériques dans les dernières trentes années. Pour cela, il aborde particulièrement les enjeux du développement dans la phase de la globalisation du capital. Ce travail s'appuie surtout sur les études de la vaste bibliographie publiée récemment. Dans quelle mesure la relance du développement concernant plusieurs secteurs stagnés de la périphérie deviendrait-elle une réelle possibilité? Autour de cette question, que nous trouvons centrale dans l'actuelle conjoncture, nous entamons quelques réflexions. Nous envisageons montrer que la stagnation économique à laquelle des nombreux pays non développés font face ne découle pas en partie d'une crise sociale et économique ouverte dans les années soixante-dix et qui s'élargit jusqu'à nos jours malgré les tentatives de restructuration de la société capitaliste. Les stratégies et les mesures politiques à caractère néo-liberal aussi auraient énormément contribué à cette situation étant donné qu'elles ont renforcé les amarres financières qui ont étranglé pour une part les économies périphériques. Outre ces difficultés, ces pays affronteraient les limites écologiques du capitalisme. La relance du développement dans un nouveau stade exigeant la croissance économique, la justice sociale et la préservation de la nature amènerait à une rupture face au capitalisme.
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In the last decades, medical care has been increasingly permeated by the concept of evidence-based-medicine, in which clinical research plays a crucial role in establishing diagnostic and treatment. Following the improvements in clinical research, we have a growing concern and understanding that some ethical issues must be respected when the subjects are human beings. Research with human subjects relies on the principles of autonomy, beneficence, no maleficence and justice. Ordinance 196/96 from the National Health Board adds to the Brazilian legislation such renowned bioethical principles.Aim: Discuss the main ethical aspects involved in research with human subjects.Materials and Methods: Critical analysis of Ordinance 196/96 and related literature.Conclusion: Ordinance 196/96 rules research with human subjects; nevertheless, it requires more in-depth discussions regarding the informed consent, use of placebo, research with vulnerable populations and research in developing countries.
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Actions to overcome a disease are dependant, essentially, on what is known about it. Procedures followed in the past were sometimes bizarre, but justified because of how little was known about the disease. The tuberculosis prechemotherapeutic age was somber due to the high levels of fatalities and morbidity. With the arrival of the chemotherapeutic treatment its prognosis has changed. Tuberculosis declined in the 50's and stabilized in the 80's. Nevertheless, it is back increasing alarming its numbers more than ever; probably because of some factors, among them, the public health system lack of attention and the government's policies, increasing in the migration to and from the endemic areas, development of drug multi-resistant cepa and also to the HIV infection. An universal antimycobacteria chemotherapy treatment is not accepted, maybe because of the number of drugs that are available. Modern chemotherapy, however, has an attack and a maintenance phases with the aim to eliminate the bacillus of fast and slow multiplication, respectively. The treatment period is long, when compared with other infectious diseases, that leads to the lack of compliance. In spite of the available resources in the fight against tuberculosis they seem insufficient to restrain the disease. This has forced the search for new chemotherapy alternatives to avoid strong come back of tuberculosis to the point of being called the 'white plague' well into the 21'st century.
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The reptile fauna in the municipality of São Paulo is well sampled due to intensive collection in the last 100 years. In the present work we provide a checklist of reptile species in São Paulo municipality based on preserved specimens in scientific collections. The reptile fauna was also characterized by three ecological parameters: habitat use, substrate use, and diet. We recorded a total of 97 reptile species (two turtles, one crocodilian, 19 lizards, seven amphisbaenians, and 68 snakes). Approximately 70% of the lizards and 40% of the snakes are typical of forest habitats of the Serra do Mar mountain range. Other squamates are typical of open formations that occur mainly on inland Cerrado habitats. All turtles and the crocodilian are associated to riparian habitats. Approximately 63% of the lizards are predominantly terrestrial, and the remaining species are arboreal. Most species of snakes are terrestrial (38%) or subterranean/criptozoic (25%) whereas a smaller proportion are arboreal (18%) or aquatic (9%). Lizards feed upon arthropods. Almost 50% of the snake species are specialized or feed mainly upon anuran amphibians. Other important items consumed by snakes are mammals (24%), lizards (18%), subterranean vertebrates (10%), and invertebrates (earthworms, mollusks and arthropods; 15%). A total of 51 reptile species have not been recorded for the last six years. Probably many of these species are extinct in the region due the intense local urbanization and habitat loss. The survey of species collected in São Paulo municipality and received in the Instituto Butantan in recent years allowed the identification of 10 lizards at least 42 snake species already occurring in the region. The high species richness of the original fauna seems related to the geographic location of the municipality, in a contact zone between forested areas of the Atlantic Forest (ombrophilous forest) and open formations (savannas, high-altitude grassland). Thus, the original habitat composition probably allowed sympatry among different species pools typical of both open and forested formations. The extant snake fauna recorded in the last three years indicates a higher loss of the species in open formations when compared to the forested areas.
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Although the quality of sea recreational waters is already monitored by programs implanted in some Brazilian states, including the State São Paulo, little attention has been given to beach sands, which have been disregarded from the point of view of public health. However, this panorama is changing in recent years due to an increasing number of cases of mycoses and bacterial infections affecting people who frequent beaches and use sands as recreation places. This has caused greater concerns with the contamination of this environment, also measurable by the increase of the number of scientific works on sediments and recreational beach sands microbiota. Currently one knows that in general these sediments contain more microorganisms than the water and are therefore potential sources of contamination of human beings by pathogenic microorganisms. The results of works carried through in some countries are worrying, and have demonstrated the necessity of establishing standards and limits so that monitoring programs of the microbiological quality of beach sands are implanted. Such concern is especially high in Brazil, a country of a tropical climate where thousands of beaches, used for recreation, extend for almost eight thousand kilometers of the coast. In the context of Baixada Santista, studies carried through have shown that in certain situations beach sands can contain more microorganisms than waters and may be a risk to the health of users.
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Political power, territory and environmental crisis in Colombia. We describe some forms of operation of the political power of the Colombian State and their impacts on the territory. The analysis uses some results of a doctoral research that sought to understand the institutional and regulatory foundations and the water management practices in two metropolitan areas of South America, Cali in Colombia, and Campinas in Brazil. The theoretical framework, primarily based on critical thought, starts by making an approach to the concept of power and then links it with the concepts of territory and governance. We present empirical evidence on how the political power of the Colombian State operates on the environmental institutional structure. We concluded that the authoritarian interference of the executive power has generated crisis on the institutional framework and facilitated the advancement of the neo-liberal capitalist model.
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