Rio Grande Research Articles

Ruy Belo: corpo de si, corpos de outrem

<p>A passagem do tempo é uma das linhas de força da poesia de Ruy Belo. O envelhecer inscreve marcas de morte na materialidade dos sujeitos e do mundo, em um processo lutuoso e inelutável. Neste artigo, teceremos alguns comentários sobre o corpo do homem enquanto lugar privilegiado da ética beliana, configurando-se como espaço crítico e de crítica, de denúncia da exploração econômica, social ou política, e mais do que isso: é na abertura ao <em>rosto do outro</em> que persiste, mesmo depois d’<em>Aquele grande Rio Eufrates</em>, um acreditar. Dessa forma, estar no mundo e com outrem – <em>corporalmente</em> – ultrapassa a contingência e se assume como uma responsabilidade.</p><p>---</p><p> </p><p><strong>DOI:</strong> <a href="http://dx.doi.org/10.22409/abriluff.2017n18a409" target="_blank">http://dx.doi.org/10.22409/abriluff.2017n18a409</a></p>

Monitoring pharmaceuticals and personal care products in reservoir water used for drinking water supply.

In this work, the presence of selected emerging contaminants has been investigated in two reservoirs, La Fe (LF) and Rio Grande (RG), which supply water to two drinking water treatment plants (DWTPs) of Medellin, one of the most populated cities of Colombia. An analytical method based on solid-phase extraction (SPE) of the sample followed by measurement by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) was developed and validated for this purpose. Five monitoring campaigns were performed in each reservoir, collecting samples from 7 sites (LF) and 10 sites (RG) at 3 different depths of the water column. In addition, water samples entering in the DWTPs and treated water samples from these plans were also analysed for the selected compounds. Data from this work showed that parabens, UV filters and the pharmaceutical ibuprofen were commonly present in most of the reservoir samples. Thus, methyl paraben was detected in around 90% of the samples collected, while ibuprofen was found in around 60% of the samples. Water samples feeding the DWTPs also contained these two compounds, as well as benzophenone at low concentrations, which was in general agreement with the results from the reservoir samples. After treatment in the DWTPs, these three compounds were still present in the samples although at low concentrations (<40ng/L), which evidenced that they were not completely removed after the conventional treatment applied. The potential effects of the presence of these compounds at the ppt levels in drinking water are still unknown. Further research is needed to evaluate the effect of chronic exposure to these compounds via consumption of drinking water.

Importance of Primary Health Care in Medicine: Simultaneous Analysis of Two Colleges, under the Vision of Teachers and Students

Introduction: The involvement of undergraduate student at the beginning of their training in activities based on Primary Health Care (PHC), provides preventive and health promoting actions, and ensures the evaluation of the vulnerability of communities and people. Objectives: To analyze the opinion of students and teachers of two medicine higher education institutions on the relevance of Primary Health Care in this course. METHODS: Students and teachers should be effectively enrolled in order for the study to be conducted, being chosen in a random manner and without interferences on the part of the researchers so that the work was as reliable as possible. A cross-sectional study was conducted with interviews structured in questionnaires about what they thought about PHC. To some students and teachers of the medical course of Valen?a and Grande Rio University (UNIGRANRIO). Before receiving the questionnaire, all interviewed signed a Free and Informed Consent Term, which included the objectives and methodology of the work. Results: 310 students and 51 teachers participated in the study, where 91.43% of the students and 100% of the teachers affirmed that primary care plays a fundamental role in medical education. 94.86% of students and 97.91% of teachers, claimed that the discipline allows a greater contact between undergraduates and community. When questioned about the encouragement that teachers give to students to pursue a career in PHC, 57.87% of the students and 70.83% of the professors said they lacked in such a stimulus. Conclusion: PHC is still very neglected by governmental policies, educational institutions and by the own teachers, that often, turn they attention only to tertiary medicine and, as a consequence, a discouragement of this area occur. Therefore, a higher PHC value is necessary, allowing a more humane look at the patient, valuing their feelings, anguishes and their pathological framework.

Life table parameters and digestive enzyme activities in Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) fed on some commercial cultivars of tomato

Effects of six commercial tomato cultivars, Super Strain B, Super crystal, Hed rio grande, SUN 6108 f1, Rio grande UG and Cal.JN3 were determined on digestive physiology and life table parameters of Chrysodeixis chalcites (Esper). The highest values of consumed foods were determined in the larvae fed on Rio grande UG and Cal.JN3 while the lowest values were observed on SUN 6108 f1. Statistical difference was found in the pupal weight by the highest value on SUN 6108f1. The highest values of intrinsic rate of increase (rm) and the net reproductive rate (R0) were obtained on SUN 6108 f1 but the lowest values were obtained on Cal.JN3. Significant differences were also found in activities of digestive enzymes including specific proteases, α-amylase, glucosidases and TAG-lipase. Our findings showed that the highest and the lowest activities of specific proteases and TAG lipase were obtained on Rio grande UG and SUN 6108 f1, respectively. In addition, activities of the carbohydrases were the highest in the larvae fed on Cal.JN3. The demographical and physiological findings here revealed Cal.JN3 and Rio grande UG as the partially unsuitable cultivars for C. chalcites in comparison with other ones which may be recommended in integrated pest management.

Implicações das noções de canção como constelação de gêneros e de letramento literomusical para o ensino de português como língua adicional

Resumo: Este artigo tem como objetivo discutir as implicações pedagógicas das noções de canção como constelação de gêneros (COELHO DE SOUZA, 2010, 2014) e de letramento literomusical (COELHO DE SOUZA, 2015) para o ensino de Português como Língua Adicional através de uma proposta de objetivos e orientações pedagógicas para a abordagem do gênero canção em aulas de línguas. Afiliada à perspectiva do ensino de línguas que toma os textos de diferentes gêneros discursivos e as práticas sociais por eles mediadas como objeto de ensino (BRASIL, 1998; RIO GRANDE DO SUL, 2009) a fim de fomentar a educação linguística dos educandos (BAGNO; RANGEL, 2005), a proposta pedagógica interdisciplinar aqui apresentada busca fornecer recursos para que possam participar de modo mais efetivo, crítico, qualificado e autoral nas práticas sociais e nos discursos nos quais suas inter(ações) são mediadas por canções.

Powder metallurgical processing of iron for biodegradable medical implants: Physical and mechanical

Event Abstract Back to Event Powder metallurgical processing of iron for biodegradable medical implants: Physical and mechanical Vinicius Martins1, 2, André C. Tavares1, 2, Lirio Schaeffer2 and Diego Wermuth2 1 Instituto Federal Sul-rio-grandense - IFSul, Mecânica, Brazil 2 Universidade federal do Rio grande do Sul - UFRGS, Metalurgica, Brazil During the last two decades, significant advances have been made in the development of biocompatible and biodegradable materials for medical applications. The powders were analyzed and made test pieces were after analyzed its physical properties. It built up an array to conventional powder metallurgy, compliance with the process parameters as: compression pressure, atmosphere and time sintering. The production by powder metallurgy given to components unique features, as controlled porosity, which differs from Traditional manufacturing techniques. The parameters for conventional powder-metallurgical and Powder injection moulding production of iron for biodegradable medical implants were determined. With the application of these parameters an part with sufficient granulometry and green density, porosity after sintering, hardness, microhardness, tensile test and metallography. The comparison of samples with different sintering temperatures revealed that a slight variation of the sintering temperature can have a considerable effect on the physical and mechanical properties of iron for biodegradable medical implants. Keywords: Biodegradable metal Conference: 10th World Biomaterials Congress, Montréal, Canada, 17 May - 22 May, 2016. Presentation Type: Poster Topic: Biomaterials in microdevices and microarrays Citation: Martins V, Tavares AC, Schaeffer L and Wermuth D (2016). Powder metallurgical processing of iron for biodegradable medical implants: Physical and mechanical. Front. Bioeng. Biotechnol. Conference Abstract: 10th World Biomaterials Congress. doi: 10.3389/conf.FBIOE.2016.01.03041 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 27 Mar 2016; Published Online: 30 Mar 2016. Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Vinicius Martins André C Tavares Lirio Schaeffer Diego Wermuth Google Vinicius Martins André C Tavares Lirio Schaeffer Diego Wermuth Google Scholar Vinicius Martins André C Tavares Lirio Schaeffer Diego Wermuth PubMed Vinicius Martins André C Tavares Lirio Schaeffer Diego Wermuth Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.

GUSTAVO DE‐DEUS, DDS, MD, PHD, Associate Professor, Faculty of Dentistry, Grande Rio University Grande (UNIGRANRIO), Federal Fluminense University (UFF), Rio de Janeiro, Brazil

GUSTAVO DE‐DEUS, DDS, MD, PHD, Associate Professor, Faculty of Dentistry, Grande Rio University Grande (<scp>UNIGRANRIO</scp>), Federal Fluminense University (<scp>UFF</scp>), Rio de Janeiro, Brazil

TROPHIC CLASSIFICATION AND TEMPORAL KINETICS OF P/B, P/R, R/B AND NPP/GPP RATIOS IN THE PHOTIC LAYER OF THE DAM ZONE IN AN EQUATORIAL COLOMBIAN RESERVOIR

We studied the kinetic temporal and trophic classification of the reasons P/B, P/R, NPP/GPP and R/B in the area of ??the dam reservoir Riogrande II (6o 35’ 57’’- 6o 28’ 79’’ N; 75o 32’ 17’’-75o 25’ 85’’ O). We measured gross primary production (GPP) and net (NPP) and respiration (R) at five depths within the photic zone. Samples were taken every month between July 2002 and June 2003. Phytoplankton biomass (B) is quantified according to Sartory & Grobbellar (1984) in samples integrated within the photic zone. From the maximum values of the profiles GPP and R were established photosynthetic Coefficient (GPPmax / B), the reason GPPmax / Rmax and metabolic coefficient (Rmax / B). The ratio between the mean values ??of NPP and GPP shows that NPP was 5.2 times GPP, reflecting higher R. These considerations imply that: the biomass present structure remains due to the negentropy relatively high, and metabolically the system is more autotrophic that heterotrophic, behaving as a carbon sink. Therefore, part of the biomass is breathe not in this ecosystem. implying that there is a PPN available, functioning as a nutrient trap of type autotrophic. The metabolic coefficient ranged around the unit, confirming the relative stability of the phytoplankton assemblage, with some catabolic periods, but prioritizing the anabolic character, what effectively converts the system into a carbon sink capable of maintaining stable condition, and therefore contributions resistant entropic or anergic. Assuming that an accumulation B signifies a R increase, then P/R must be less than one. However, the ratio P/R, with an average value of 1.61 shows clearly an imbalance between the produced material and the removed or consumed by R. Considering the concentration of phytoplankton B (17.1 +11.7 MgCl. Am -3 ), the dam of the water body studied is eutrophic. The mean values ??of the coefficient of Assimilation confirm this condition.

Dificuldades de aprendizagem e problemas emocionais: reflexões sobre a necessidade de uma proposta de formação docente

The study aimed to know the learning difficulties presented by children and adolescents who received psychopedagogical assistance in a support service belonging to a university in rio grande do sul. Data were evaluated by bardin content analysis. Results point a high rate of affective and emotional difficulties in children. The findings show the importance of understanding the role of emotional processes in the development of learning disabilities. It also discusses the need for a proposal for teacher training of children whose files were analyzed. This training should not be limited to the appropriation of an instrumental technician that offers a prescription for efficiency, the development of a more appropriate schooling for children with emotional difficulties also involves the teacher-student relationship. It is necessary to construct a dialogue that respects the existence between the parties, characterized by listening to the other, the desire to discover, understand and respect the student as an individual who brings his story, its difficulties, but it also carries a set of potential to learn and develop.

Lake size and fish diversity in southern Brazil coastal lagoons

Event Abstract Back to Event Lake size and fish diversity in southern Brazil coastal lagoons Lucia Ribeiro Rodrigues1* and David Da Motta Marques1 1 UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL, Brazil The coastal plain of Rio Grande do Sul, southern Brazil, presents a series of shallow lagoons with diverse size and morphology. The objective of this study is to determine whether the size of the lagoon is an effective factor for structuring fish diversity. In this regard, nine lagoons with distinct areas were sampled: three with an area up to 40 hectares, three with area between 40 and 80 hectares, and three with an area of over 80 hectares. Each lagoon was sampled once on the littoral and pelagic zones. At each point, fish were captured through a set of gill nets with different mesh sizes. Captured specimens were identified, quantified and evaluated for weight and length. A total of 24 fish species belonging to 10 families was obtained, with Characidae presenting the highest species richness. Cyanocharax alburnus was the only species that occurred in all lagoons. Cyphocharax voga, Astyanax eigenmmaniorum, Oligosarcus jenynsii and O. robustus were also frequent species, present in most of the sampled lagoons. Lycengraulis grossidens was captured in just two lagoons with increased conductivity. The community structure showed the highest species richness in lakes with an area over 40 ha, however the highest mean diversity values were observed in ponds up to 40 ha. Cluster Analysis yielded the formation of two groups: a group formed by just one lagoon and a second one cluster grouping all the other lagoons. This pattern may be associated with the presence of Lycengraulis grossidens as a dominant species in this lagoon clustered apart. The results indicate that lagoons with up to 40 ha present greater homogeneity on the species composition and higher average values of diversity; while intermediate ponds (between 40 and 80 ha) have lower average diversity for the fish fauna due to increased heterogeneity in species abundance. Keywords: Coastal lagoons, Southern Brazil, Fish diversity, Lake size, heterogeneity Conference: XV European Congress of Ichthyology, Porto, Portugal, 7 Sep - 11 Sep, 2015. Presentation Type: Poster Presentation Topic: Ecology, Conservation and Invasive Species Citation: Ribeiro Rodrigues L and Da Motta Marques D (2015). Lake size and fish diversity in southern Brazil coastal lagoons. Front. Mar. Sci. Conference Abstract: XV European Congress of Ichthyology. doi: 10.3389/conf.FMARS.2015.03.00159 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 26 Oct 2015; Published Online: 28 Nov 2015. * Correspondence: Dr. Lucia Ribeiro Rodrigues, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL, PORTO ALEGRE, Brazil, luciarrodrigues@gmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Lucia Ribeiro Rodrigues David Da Motta Marques Google Lucia Ribeiro Rodrigues David Da Motta Marques Google Scholar Lucia Ribeiro Rodrigues David Da Motta Marques PubMed Lucia Ribeiro Rodrigues David Da Motta Marques Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.

Effect Of Physical And Chemical Mutagens On Morphological Behavior Of Tomato (Solanum Lycopersicum) CV. “Rio Grande” Under Heat Stress Conditions.

Abstract Given the importance to tomato production under heat stress conditions in hot climates of Pakistan, the objective of this research work was to study the influence of temperature and application of physical and chemical mutagens on tomato (Lycopersicon esculentum L.,) CV. “Rio grande” Seeds were treated with chemical mutagen (Ethyl Methane Sulphonate) and physical mutagen (Gamma radiation). Plants were grown in open field conditions under day/night temperatures regimes at the experimental area of Department of Horticulture, faculty of crop and food sciences, PMAS-AAUR. The experiment was set twenty treatments and four replications in Complete Randomize Block Design. It is observed that by increasing dose of mutagens shows lethal effect and morphological parameters reduced significantly. But lower doses of EMS and Gamma radiation improve thermotolerance capacity significantly. Plants were investigated for different morphological parameters i.e Plant height, no. of leaves, leaf area, relative water contents of leaves, chlorophyll contents, cell viability (TCC Assay) and pollen germination. Among gamma rays 5Kr were the only dose which survived and bear fruits. Among EMS 4mM, 8 mM, 16mM performed better under heat stress conditions than other treatments.

Rio Branco, grand strategy and naval power

This article addresses Baron of Rio Branco's grand strategy and the role played by the naval reorganization program (1904-1910) in this context. The ensuing case study determined the domestic and international constraints that affected the program, as well as the worldview of the patron of Brazilian diplomacy regarding military power's instrumentality to foreign policy.

Mapeamento digital de solos com base na extrapolação de mapas entre áreas fisiograficamente semelhantes

O objetivo deste trabalho foi testar metodologias de mapeamento digital de solos (MDS) e avaliar a possibilidade de extrapolação de mapas entre áreas fisiograficamente semelhantes. A área de referência para o treinamento do modelo localizou-se no Município de Sentinela do Sul, RS, e a extrapolação foi feita para o Município Cerro Grande do Sul, RS. Desenvolveram-se pelo MDS modelos com o uso de variáveis ambientais, como preditoras, e as classes de solos - obtidas de um levantamento convencional na escala 1:50.000 - como variáveis dependentes. Testou-se o uso combinado de dois modelos de árvore de decisão (AD), treinados em duas paisagens com diferentes classes de drenagem. Para Sentinela do Sul, a concordância dos mapas preditos com os produzidos pelo levantamento convencional foi avaliada por matrizes de erro. Como a importância dos erros de mapeamento é variável, criou-se uma matriz ponderada, para atribuir diferentes importâncias aos erros específicos de mapeamento entre as distintas unidades de mapeamento. A acurácia do mapa de Cerro Grande do Sul foi avaliada pela verdade de campo. A extrapolação dos mapas gera resultados satisfatórios, com acurácia maior do que 75%. O uso de modelos com duas AD separadas por paisagens homogêneas gera mapas extrapolados com maior acurácia, avaliada pela verdade de campo.

TERRA, CASA E PRODUÇÃO. REPARTIÇÃO DE TERRAS DA CAPITANIA DO RIO GRANDE (1614)

A distribuicao gratuita de terras aos colonos, mesmo que mediante algumas exigencias, foi um processo que marcou a historia colonial do Brasil. Um caso tipico, cujo interesse reside no fato de ser do inicio da colonizacao, pode ser detectado atraves da analise do “auto de reparticao de terras” da capitania do Rio Grande. A analise deste importante documento, escrito em 1614, ha exatos 400 anos, permitiu compreender esse processo na antiga capitania, atual estado do Rio Grande do Norte, ainda em seus primordios. Dividido em tres partes principais - alem de uma introducao, de uma conclusao, e de uma apresentacao sobre o documento em si - este artigo analisa a distribuicao de terras rurais (a terra), de terras urbanas (a casa) - neste ultimo caso para a unica aglomeracao colonial existente, Natal, permitindo desvendar, tanto quanto possivel, como era essa cidade - assim como, finalmente, a producao, isto e, o que a terra rural assim distribuida fornecia ou poderia fornecer aos colonos.

Registros polínicos para o Holoceno tardio da região da Campanha (Rio Grande do Sul, Brasil) e seu significado na história dos paleoambientes da Savana Estépica Parque

POLLEN RECORDS FOR LATE HOLOCENE IN THE CAMPANHA REGION (RIO GRANDE DO SUL, BRAZIL) AND THEIR SIGNIFICANCE IN THE HISTORY OF THE PALEOENVIRONMENTS IN THE SAVANA ESTEPICA PARQUE. This paper presents palynological results from an outcropping section located in the Brazilian side of the Quarai river (30°16'27.9S/57°26'33.6W), south of the Barra do Quarai city, westernmost portion of the Rio Grande Sul State, as well as from 15 surface samples collected in the 'Parque do Espinilho' (PESP), in order to obtain current pollen spectrum. A total of 81 types of palynomorphs (pollen and non pollen) was identifi ed in the ten fertile samples from the outcropping section and 114 taxa from surface samples. Pollen diagrams were performed in order to identify current pollen spectrum and reconstruct the vegetational history of the Savana Estepica Parque during the late Holocene in this region, supported by radiocarbonic datings and granulometry analysis. Results indicate that between 3,380 ± 25 and 2,350 ± 25 14 C yr BP, area was composed by a fl oodplain covered with grasses that formed bodies of water with little depth enabling the development of algae colonies. Between 2,328 and 2,262 yr BP (interpolated age) occurred a decrease in humidity and the temperature rise, as suggested by the disappearance of algae and the bryophytes increasing. Between 2,130 (interpolated age) and 1,940 ± 20 14 C yr BP was recorded an increasing of the humidity, refl ected by the high diversity of arboreal taxa, with expansion of the Mata Ciliar. Granulometrical data corroborate palynological results. Pollen spectra of surface samples refl ected the different current vegetation types of the PESP.

Nutritional performance of the tomato fruit borer, Helicoverpa armigera, on different tomato cultivars.

The development and cultivation of tomato cultivars that are resistant to the tomato fruit borer, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), are very limited in Iran and other parts of the world because of the lack of information about resistant tomato cultivars to minimize the use of insecticides. Therefore, the present study was carried out to identify alternative methods to chemical control. Nutritional performance of the larval stages (fourth, fifth, and sixth instars) of H. armigera on fruit of eight tomato cultivars, including SUN 6108 f1, Rio grande UG, Korral, Super strain B, CH falat, Hed rio grande, Cal.JN3, and Super crystal, was studied under laboratory conditions. Fourth instars reared on CH falat and SUN 6108 f1 respectively showed the highest and lowest values of approximate digestibility. The highest values of efficiency of conversion of ingested food and efficiency of conversion of digested food of fifth instars were on Super strain B. The relative consumption rate and relative growth rate values of the sixth instars were the highest on Korral. The highest and lowest values of consumption index of sixth instars were on Super strain B and Hed rio grande, respectively. The efficiency of conversion of ingested food and efficiency of conversion of digested food values of whole larval instars were the highest on Hed rio grande and lowest on Rio grande UG. The results of nutritional indices indicated that Rio grande UG is an unsuitable host for H. armigera.

Digestive enzymatic activity and nutritional responses of Helicoverpa armigera (Lepidoptera: Noctuidae) larvae fed various tomato cultivars.

Digestive enzymatic activity and nutritional responses of sixth-instar larvae of the tomato fruit borer, Helicoverpa armigera (Hübner), were studied on eight tomato cultivars commonly cultivated in Iran. Among various tomato cultivars, the larvae fed on 'Cal JN3' (4.860 +/- 0.092 U/mg) significantly showed the highest level of proteolytic activity. However, proteolytic activity of the larvae reared on 'Sun 6108 f1' (2.182 +/- 0.161 U/mg) was significantly lower than those reared on Cal JN3, 'Korral,' 'Rio grande UG,' 'Super crystal,' and 'CH falat'. Also, the larvae fed on Korral (0.170 +/- 0.007 mU/mg) significantly had higher amylolytic activity than the other tomato cultivars. The pupal weight of H. armigera was significantly lower on Rio grande UG (0.208 +/- 0.014 g), Sun 6108 f1 (0.216 +/- 0.008 g),and Super strain B (0.229 +/- 0.014 g) than Cal JN3 and CH falat. Because the larvae and pupae reared on Rio grande UG were lighter than those fed on the others, this cultivar can be suggested as the least suitable host for feeding of H. armigera. However, because the mean weight gain of the larvae, food consumption, and larval weight during feeding period were significantly highest on CH falat, it can be selected as suitable cultivar for feeding of the pest.

A new species of Hyphessobrycon Durbin (Characiformes: Characidae) from the middle rio São Francisco and upper and middle rio Tocantins basins, Brazil, with comments on its biogeographic history

A new species of Hyphessobrycon Durbin is described from tributaries of the rio Grande (rio São Francisco basin) draining east to the Serra Geral de Goiás, of the rio São Domingos (upper rio Tocantins basin) and rio do Sono basins (middle rio Tocantins basin). Hyphessobrycondiastatos can be diagnosed from its congeners by the absence of humeral spot, 15-18 branched anal-fin rays, 1-3 maxillary conical to tricuspid teeth, a relatively well-defined dark caudal-peduncle spot, and elongation of dorsal- and anal-fin rays in mature males. The biogeographical significance of the distribution of the new species is evaluated and discussed.

POLÍTICA NACIONAL DE DESENVOLVIMENTO REGIONAL E REPERCUSSÕES NO RIO GRANDE DO SUL

Apos uma decada de sua implementacao, a Politica Nacional de Desenvolvimento Regional (PNDR) passa por um momento de revisao, com o intuito de traze-la para uma posicao de maior destaque entre as politicas governamentais. Alinhado a esse proposito, o presente artigo tem como objetivo avaliar as repercussoes territoriais da PNDR no Estado do Rio Grande do Sul e apontar elementos para sua continuidade. Primeiramente, foi realizada uma analise da Politica e dos programas com maior incidencia no territorio gaucho: o Programa de Promocao da Sustentabilidade de Espacos Sub-Regionais (PROMESO) e o Programa de Desenvolvimento da Faixa de Fronteira (PDFF). A seguir, foram avaliados os resultados ja alcancados por esses programas e identificadas possiveis repercussoes no territorio e na organizacao dos atores envolvidos. O artigo e finalizado com algumas consideracoes sobre os resultados e sobre o futuro da PNDR.

ENCHENTES NO RIO GRANDE DO SUL DO SÉCULO XXI

No Rio Grande do Sul, as enchentes constituem-se em fenomenos naturais ja conhecidos pela populacao, em especial, aquelas que habitam os vales dos principais rios sul-rio-grandenses. O objetivo geral desta pesquisa consistiu em identificar as correntes perturbadas e os tipos de tempo responsaveis pela genese das enchentes nas tres Regioes Hidrograficas do Estado entre os anos de 2000 e 2011. Aplicou-se metodologia baseando-se no Ritmo Climatico. Nesse sentido, observou-se que a maior parte das enchentes ocorreu em funcao de ciclos climaticos nos quais havia a participacao da Frente Estacionaria e Ciclogeneses, com e tipos de tempo inerentes aos dominios destes sistemas.