978 resultados para Rios de montanha


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A crescente expectativa dos vários stakeholders, bem como as diferentes partes interessadas nas áreas de atuação de várias empresas, recentemente tem levado diversas corporações a se envolverem em iniciativas que visam o desenvolvimento social e a erradicação da pobreza. Porém, apesar das inúmeras tentativas, resultados convincentes ainda não foram produzidos, mantendo a separação entre os indivíduos que vivem na base da pirâmide económica e aqueles pertencentes às camadas mais elevadas quase inalterada. Consequentemente alguns estudiosos criticaram a falta de contextualização das práticas de gestão existentes, atribuindo o mesmo à forte influência das ideologias ocidentais, que impedem que as iniciativas sociais se adaptem às necessidades dos diferentes contextos geopolíticos. Por meio da análise de um conjunto de iniciativas sociais da Coca-Cola Brasil ("Projetos Coletivo") implementadas em várias comunidades brasileiras, o presente estudo mostra como Coca-Cola Brasil tentou produzir, em colaboração com os ONG locais, um tipo de "tecnologia social" universal, que poderia ser facilmente adaptada a diferentes contextos, acelerando o processo de implementação das iniciativas sociais e ampliando o seu impacto.

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Dois arquivos, um no formato PNG e outro em formato SVG. Dimensão de 1607x1074px.

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As pessoas viajam cada vez mais em busca de novas experiências, novas vivências associadas a diversas práticas activas. O uso do desporto como uma mais-valia para o turismo tem vindo a aumentar desde a década de oitenta, aliado ao aparecimento de uma nova filosofia de gestão do conceito que combina “aventura”, ecoturismo e os aspectos culturais do destino turístico. O turismo activo constitui-se como uma forma de organização que enfatiza a actividade do próprio turista. O presente estudo decorre de um trabalho de campo realizado na Região Autónoma da Madeira cujo propósito passa por aferir a percepção que terá o turista activo (em geral) que procura as levadas, perfazendo estas, um dos mais fortes atractivos da região. Como instrumento de pesquisa, recorremos ao questionário, aplicado numa amostra de cento e cinquenta turistas. A entrega dos questionários aos turistas decorreu em vários locais, a saber: unidades hoteleiras; empresas de animação turística desportiva; guias de montanha, assim como in loco, nas próprias levadas, objecto de estudo. Os objectivos do trabalho incidem sobre um conjunto de itens, tais como caracterizar o perfil do turista activo das levadas; apreender que motivações afectam a escolha do destino Madeira; perceber se o turista, quando opta pelo destino Madeira, considera a prática de actividade física como um factor decisivo e identificar quais os atributos das levadas mais valorizados pelos turistas. Pretende-se também determinar aproximadamente o impacto económico dos turistas das levadas no desenvolvimento da economia e do turismo da Madeira. Após a análise de dados, constatamos que 51,6% dos inquiridos são do sexo feminino, 23,9% têm idades compreendidas entre os 50 e os 59 anos e 24,5% são de nacionalidade alemã. Relativamente aos gastos efectuados durante a estadia, 51,6% dos inquiridos afirmaram despender até cem euros/dia. No que diz respeito aos atributos que os turistas mais valorizam nas levadas/veredas, 72,5% referem o contacto com a natureza. À pergunta “concorda com o pagamento de uma quantia simbólica, para uma taxa ecológica em benefício da natureza?”, a esmagadora maioria, cerca de 80,6% dos inquiridos, respondeu afirmativamente.Após a análise cuidada dos resultados obtidos, podemos realçar, então, a existência de um segmento de mercado de turista activo das levadas, que contribui para o desenvolvimento da economia e do turismo da Madeira, como uma das conclusões retiradas do estudo. O real contributo desta comunicação no âmbito do turismo activo deriva do facto de se tratar de um trabalho pioneiro nesta área específica, além de permitir estabelecer um roteiro de análise da problemática.

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O transporte, neste caso o transporte aéreo para a Madeira, assume particular importância na atividade turística, para mais sendo esta uma região insular e ultraperiférica da Europa, em que a realidade socioeconómica tem como pedra basilar o Turismo que, por si só, representa 25% do PIB. Frequentemente são apontados como “culpados” pelas cíclicas crises no sector, a promoção (ou a falta dela) e as opções tomadas, a concorrência de destinos mais baratos, o peso das taxas aeroportuárias, os fenómenos climáticos, os incentivos às companhias aéreas e aos operadores, o estímulo à operação low cost, as unidades hoteleiras e as camas disponíveis, a distância (tempo de voo) deste destino em relação ao norte da Europa e ao outro lado do Atlântico, a existência ou não de ligações aéreas diretas, um sem número de “razões” em que, provavelmente, todas elas, em maior ou menor percentagem, darão o seu contributo. As infraestruturas aeroportuárias, outrora também “culpadas” por não permitirem operações de longo curso, estão hoje habilitadas para receber voos intercontinentais. A Madeira, não deixou de ser a “Pérola do Atlântico”, com um clima ameno e profilático, com as levadas e a floresta Laurissilva, com o Vinho Madeira; com a Festa do Fim do Ano, o Carnaval e a Festa da Flor, com as Paisagens únicas, o Mar e a Montanha, o Golf, o Rali da Madeira, atrativos que deveriam ser suficientes para ultrapassar os fatores “negativos” citados. Sê-lo-ão? Sem a presunção de encontrar soluções milagrosas para algo que vem sendo estudado por profissionais e consultores, pretende-se possibilitar um olhar sob uma outra perspetiva, deixando pistas para uma abordagem diversa, em que se investigam os efeitos dos voos não diretos, o peso das operações low cost e se desenha um benchmarking com o destino concorrencial das Canárias.

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A partir de um conjunto de dados obtidos em pesquisa, o texto deseja salientar uma face pouco examinada pelos estudiosos do espiritismo no Brasil: aquela dos grupos espíritas que cultuam extraterrestres. Examina a narrativa Rebelião de Lúcifer, escrita pelo médium potiguar Jan Val Ellam. Sustenta que esta atualiza noções importantes em relação a narrativas de salvação anteriores construídas pelo espiritismo. Destaca em especial o aprimoramento racial e moral através da reencarnação em distintos corpos humanos e em diferentes planetas. Examina-os a partir das noções de exílio planetário e de evolução racializada. Argumenta que Jan Val Ellam as atualiza através da categoria nativa Povo de Alt’Lam e através de bricolagem com outros campos semânticos, notadamente a ufologia e a fi cção científica

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Currently the organizations are passing for continuous cycles of changes due to necessity of survival in the work market. The administration of the future points a way to the organizations of today and tomorrow, the search of the competitiveness from loyalty and motivation of its staff. Of this form, the model of the Auditoria do Sistema Humano (ASH), developed for Spanish researchers and that now it is being applied in Brazil, contemplates a series of dimensions about Human Resources management quality in the companies and the organizational effectiveness, such as the environment where the company is inserted, the strategies, the organizational drawing, the psychological and psychosocial processes, e the reached results. In this direction, the present research analyzed the factors of job satisfaction and organizational commitment, making, also, a relation of causality between the same ones. The quantitative-descriptive research had as population the employees of twenty three nourishing industries of the State of Rio Grande do Norte (Brazil), registered in the Federacy of the Industries of the state. The collection of the data occurred for the months of October of 2005 and March of 2006, by means of the application of questionnaire of model ASH. The sample was composed for 197 employees, however it was observed presence of five outliers, that they had been excluded from the analysis of the data. To extract the dimensions of the satisfaction and the commitment and identification the factorial analysis was used, with extraction method of principal components, rotation Varimax and normalization Kaiser. The gotten dimensions had been evaluated with the calculation of the coefficient Alpha of Cronbach. The factorial analysis of the pointers of the organizational commitment and identification had extracted ten factors. Of these, four had gotten significance of the analyses inside: affective commitment, values commitment, continuance commitment and necessity commitment. The result of the analysis of the pointers of job satisfaction indicated four factors: extrinsic, motivations, relation with the friends and auto-accomplishment. To deal with the data the relation between job satisfaction and organizational commitment it was used technique of multiple regression. The correlation between commitment and satisfaction was satisfactory, detaching the affective commitment with bigger index of correlation, followed of the affective one

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This work aimed to study the structure and dynamic of Phytoplankton and Bacterioplankton in a complete cycle of shrimp cultivation (Litopenaeus vannamei) and determine the environmental factors responsible for the structural changes of these communities. The study was realized in a saltwater shrimp farm (Macaíba, RN), between September/2005 and February/2006, and in a freshwater shrimp farm (Ceará Mirim, RN), between May/2007 and September 2007. The samplings were collected weekly in saltwater farm and every fifteen days in freshwater farm. Total phosphorus, chlorophyll a and environmental parameters (pH, dissolved oxygen, salinity, temperature, depth and water transparency) were measured. Qualitative and quantitative analysis of the phytoplankton and bacterioplankton were carried out. The Shannon-Wiener ecologic indexes of diversity and the Pielou equitability indexes were calculated to the phytoplankton. Bacterial density was determined by epifluorescence microscopy. The data were statistically analyzed by Pearson correlation and t-Test. Chlorophycea were predominat in salt water and in the captation/drainage point (24 to 99%). Diatoms had higher wealth. The species Choricystis minor had the highest occurrence (100%) and dominance (90-100%), thus showing its adaptation to the high temperatures, salinity and low water transparency conditions. Filamentous Cyanobacteria like Oscillatoria sp., Pseudoanabaena sp. and Phormidium sp. had constant levels. The negative correlation between chlorophycea and water transparency, and the positive correlation between chlorophyll a and salinity, showed that the phytoplankton was well adapted to the low transparency and to the high salinity. The bacterioplankton was negatively correlated with the total phosphorus and salinity. In freshwater, Cyanobacteria were predominant (>80%), presenting some producers of toxins species like Microcystis sp., Aphanizomenon sp., Cylindrospermopsis raciborskii e Anabaena circinalis. Cyanobacterial density and total phosphorus and chlorophyll a concentrations exceeded the maximum value allowed by legislation. The means of total phosphorus varied from 264 to 627 Wg.L-1 and the means of chlorophyll a oscillated between 22 and 182 Wg.L-1. The phytoplankton species were selected by low availability of the light, high pH, temperature and high availability of total phosphorus. The bacterioplankton showed high densities (5,13 x 107 to 8,50 x107 Bac.mL-1). The studied environments (ponds and rivers) presented a high level of trophic state based on the high concentrations of chlorophyll a and total phosphorus and cyanobacteria dominance. The composition of species in the ponds and rivers was similar, as well as high concentrations of total phosphorus and chlorophyll a, highlighting the pollution caused by the discharges of the farms in natural environment

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The industrial effluents are one of the main sources of water pollution. For an appropriate characterization and control of their discharges, the most efficient strategy is the integrated use of chemical, physical and ecotoxicological analyses. The aims of this study were to asses the efficiency of the treatment plant of a textile industry performing acute toxicity tests and physical-chemical analyses of the effluents before and after the treatment, besides evaluate the toxicity of the effluents of the Treatment System of Liquids Effluents (Sistema de Tratamento de Efluentes Líquidos - SITEL) of Distrito Industrial de Natal (DIN) and some of their physical-chemical variables. The species used in the ecotoxicological tests was the fish Danio rerio. The results showed that the treatment plant reduced significantly (around 50%) the toxicity of the raw textile effluent in only three of the seven tests but, in general, it promoted the reduction of the physical-chemical parameters analyzed. The toxicity and the physical-chemical factors of the effluents of SITEL of DIN varied among the tests and show the importance of monitoring their discharges in the Potengi river, one of the most important rivers of the Rio Grande do Norte state

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Considering their commercial importance, as these are the species of freshwater fish more commercialized in Brazil, their occurence in different kinds of aquatic environments (lakes, rivers and dams) and for being tolerant to a wide range of variation of various physical parameters and chemical water, the fish species Oreochromis niloticus, Cyprinus carpio and Colossoma macropomum were chosen for this study, furthermore, to test the toxicity we used the herbicide Roundup. The fingerlings of tilapia (Oreochromis niloticus), commun carp (Cyprinus carpio) and tambaqui (Colossoma macropomum) were submitted to the herbicide roundup in the following concentrations: 0.0 (control); 18,06; 19,10; 20,14; 21,18 and 22,22 mg.L-1, 0.0 (control); 13,89; 14,86; 15,83; 16,81 and 17,78 mg.L-1, and 0.0 (control); 18,06; 19,10; 20,14; 21,18 and 22,22 mg.L-1, respectively, three for 96 hours. The LC50 - 96h for O. niloticus, C. carpio and C. macropomum was 21,63, 15,33 and 20,06 mg.L-1 of the herbicide roundup, respectively. The results show that this herbicide is classified as slightly toxic to the three species. The values of dissolved oxygen, pH and temperature recorded in the aquarium control and aquarium experimental of the three fish species have remained without significant variations during the tests, which reduces the possibility of death caused by sudden variations of these parameters during the 96 hours the experiment. The values of LC50 between different species of fish were observed, noting that the species O.niloticus, C. carpio and C. macropomum showed no expressive differences. The values of environmental risk of Roundup were calculated to obtain more stringent parameters in assessing the dangerousness of those on nontargets. The risk of environmental contamination by Roundup for the Nile tilapia, common carp, and tambaqui are low for the lowest application rate (1 L.ha-1) and depths (1.5 and 2.0 m). The dilution of 100%, the highest recommended dose (5 L.ha-1) and depths (1.5 and 2.0 m) the risk is moderate for the three species. The values of the Risk Ratio (QR) were greater than 0,1, indicating that the values of the CAE and LC50 are above acceptable levels and there is a need, this study, a refinement in ecotoxicological tests

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The screening for genes in metagenomic libraries from soil creates opportunities to explore the enormous genetic and metabolic diversity of microorganisms. Rivers are ecosystems with high biological diversity, but few were examined using the metagenomic approach. With this objective, a metagenomic library was constructed from DNA soil samples collected at three different points along the Jundiaí-river (Rio Grande do Norte-Brazil). The points sampled are from open area, rough terrain and with the direct incidence of sunlight. This library was analyzed functionally and based in sequence. For functional analysis Luria-Bertani solid medium (LB) with NaCl concentration varied from 0.17M to 0.85M was used for functional analysis. Positives clones resistant to hypersaline medium were obtained. The recombinant DNAs were extracted and transformed into Escherichia coli strain DH10B and survival curves were obtained for quantification of abiotic stress resistance. The sequences of clones were obtained and submitted to the BLASTX tool. Some clones were found to hypothetical proteins of microorganisms from both Archaea and Bacteria division. One of the clones showed a complete ORF with high similarity to glucose-6-phosphate isomerase which participates in the synthesis of glycerol pathway and serves as a compatible solute to balance the osmotic pressure inside and outside of cells. Subsequently, in order to identify genes encoding osmolytes or enzymes related halotolerance, environmental DNA samples from the river soil, from the water column of the estuary and ocean were collected and pyrosequenced. Sequences of osmolytes and enzymes of different microorganisms were obtained from the UniProt and used as RefSeqs for homology identification (TBLASTN) in metagenomic databases. The sequences were submitted to HMMER for the functional domains identification. Some enzymes were identified: alpha-trehalose-phosphate synthase, L-ectoina synthase (EctC), transaminase L-2 ,4-diaminobutyric acid (EctB), L-2 ,4-diaminobutyric acetyltransferase (EctA), L-threonine 3 dehydrogenase (sorbitol pathway), glycerol-3-phosphate dehydrogenase, inositol 3-phosphate dehydrogenase, chaperones, L-proline, glycine betaine binding ABC transporter, myo-inositol-1-phosphate synthase protein of proline simportadora / PutP sodium-and trehalose-6-phosphate phosphatase These proteins are commonly related to saline environments, however the identification of them in river environment is justified by the high salt concentration in the soil during prolonged dry seasons this river. Regarding the richness of the microbiota the river substrate has an abundance of halobacteria similar to the sea and more than the estuary. These data confirm the existence of a specialized response against salt stress by microorganisms in the environment of the Jundiaí river

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The ceramics industry in Piauí is nowadays with 55 industries where 11 are in Teresina which is the mainstream of the state, producing 55 million shingles; in which 10 % is of this production is wasted being sometimes thrown on the margins of rivers, roads and highways provoking an environmental degradation. The main goal of this work is to verify the potential of producing semi porous ceramic using grog of shingles, on the first part of this work bodies-of-proof were produced from a basic formula of an industry, doping it with 5 %, 10 %, 15 % and 20 % in mass and in the second part of this work some bodies-of-proof were produced from a formula where one raw material was substituted by 50 % of grog and another substituting it all by grog, bodies-of-proof made of a basic formula previously announced was used for experiment control.The grog and the raw materials were characterized by: particle size analysis , thermal differential analysis, X ray diffraction , X ray fluorescence, an thermal gravimetric analysis and rational analyses. The bodies-of-proof were sintetisized in an industrial oven obeying the normal cycle adopted by an industry, with peak temperatures of 1135 oC and a fast burning cycle of 25 minutes having as energetic fuel liquefied petroleum gas . The pieces that were obtained by this were submersed in rehearsed physics of: water absorption of, apparent specific mass, apparent porosity, lineal retraction, rupture tension to the flexural and dilatometry; mineralogical analysis for X ray diffraction; and microstructural for electronic microscope of sweeping. For all the formulas with addition of grog, superior priorities to the requested by the requirements for semi porous and for the formula to F2-2,5 superior priorities to standard formulas which justifies the incorporation of the shingles in mass for the semi porous ceramic