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Sample records for caetite ba brazil

  1. Chemical correlations in Caetite (BA) region, Brazil

    International Nuclear Information System (INIS)

    Brazil's economic situation is responsible for an urgent demand for energy. There are several ways to generate energy, in some localities of our country, energy generation occurs almost exclusively by nuclear route, as in Rio de Janeiro state. Brazil has the sixth largest reserve of the uranium ore in the world. Nowadays there is only one mine under exploration (Uraniferous District of Lagoa Real - Caetite-BA). Unfortunately, nuclear power generation is better known, by common citizen, more for its unwanted effects than for its benefits. This fact is also powered by some Non-Governmental Organizations (NGOs), such as Greenpeace, who claim the uranium mine is dangerous since it causes environmental contamination. However, Industrias Nucleares do Brasil (INB) rejected these accusations. In a previous study, we demonstrated that doses of the Caetite (BA) population are consistent with those usually found in other countries. We stated also the higher concentration of 238U determined, in only one water sample, is probably due to natural processes, as soil leaching. In order to verify the existing natural processes, macro and micro chemical elements present in water and soil samples collected in the Caetite (BA) region were determined by ICP-MS. The results were transformed into dendrograms where chemical correlations are evidenced and they are consistent with existing natural chemical processes. It was also possible to observe a correlation between samples corroborating with the Geographic Information Systems data to be presented in this same scientific event. (author)

  2. Water management of the uranium production facility in Brazil (Caetite, BA): potential impacts over groundwater quality

    International Nuclear Information System (INIS)

    The uranium unit of Caetite - in charge of all the 'yellow cake' produced in Brazil - is located in the semi-arid Northeast region at Bahia State. The geological uranium content of the ore is 3000 ppm, which is mainly associated with albite (NaAlSi8O8), and its extraction is achieved by means of a Heap-Leach process. This process has a low water demand, which is supplied by a network of wells, but can contribute to change the groundwater quality and in some cases the extinguishing of wells was observed. The managing of liquid mining wastes formed by drainage waters from mine pit and solid waste piles is not enough to avoid unwarranted releases in the environment, which turn necessary the waste treatment through passing them into the industrial plant in order to reduce radionuclide concentrations. The groundwater is Na-HCO3 type water and relative high concentration of Cl are observed in some groundwater. It seems that levels of uranium in groundwaters are mainly a consequence of the complexation of the metal by carbonates (or other anions) and not by any sort of the contamination of these waters by the drainage accumulated in the open pit. The speciation modelling allows identifying some areas where the replenishment of the aquifer is more active, but in general the recharge is a fast process run by direct infiltration. The stable isotope data (δ2H and δ18O) showed that evaporation plays a role during the infiltration, causing the groundwater salinization. These data discard the possibility that groundwater salinization was caused by discharge of deeper saline groundwater through faults associated to a regional groundwater flow system. The presence of an active shallow groundwater flow system offers better possibility for sustainable use of the groundwater resources in this semi-arid region of Brazil. (author)

  3. Water management of the uranium production facility in Brazil (Caetite, BA). Potential impacts over groundwater quality

    International Nuclear Information System (INIS)

    The uranium unit of Caetite - in charge of all the 'yellow cake' produced in Brazil - is located in the semi-arid Northeast region at Bahia State. The geological uranium content of the ore is 3000 ppm, which is mainly associated with albites (NaAlSi8O8), and its extraction is achieved by means of a Heap-Leach process. This process has a low water demand, which is supplied by a network of wells, but can contribute to change the groundwater quality and in some cases the extinguishing of wells was observed. The managing of liquid mining wastes formed by drainage waters from mine pit and solid waste piles is not enough to avoid unwarranted releases in the environment, which turn necessary the waste treatment through passing them into the industrial plant in order to reduce radionuclide concentrations. The groundwater is Na-HCO3 type water and relative high concentration of Cl are observed in some groundwater. It seems that levels of uranium in groundwaters are mainly a consequence of the complexation of the metal by carbonates (or other anions) and not by any sort of the contamination of these waters by the drainage accumulated in the open pit. The speciation modelling allows identifying some areas where the replenishment of the aquifer is more active, but in general the recharge is a fast process run by direct infiltration. The stable isotope data (δ 2H and δ 18O) showed that evaporation plays a role during the infiltration, causing the groundwater salinization. These data discard the possibility that groundwater salinization was caused by discharge of deeper saline groundwater through faults associated to a regional groundwater flow system. The presence of an active shallow groundwater flow system offers better possibility for sustainable use of the groundwater resources in this semi-arid region of Brazil. (author)

  4. Results of solid state nuclear track detector technique application in radon detection, by alpha particles tracks, for uranium prospecting in Caetite (BA-Brazil)

    International Nuclear Information System (INIS)

    The solid state nuclear track detector technique has been used in radon detection, by alpha particles tracks for uranium prospecting on the ground in Caetite city (Bahia-Brazil). The sensitive film to alpha particles used were CA 8015 exposed during 15 days and the results of three anomalies of this region are showed in a form of maps, made with the density of tracks obtained, and were compared with scintillation counter measurements. The technique showed to be simple and an effective auxiliary for the prospection of uranium ore bodies. The initial uranium exploration costs can be reduced by using this technique. (author)

  5. Geochemistry and isotope evolution of groundwater flow and recharge from the uranium production center in Brazilian semi-arid region (Caetite-BA, Brazil) - Towards sustainability or shortage?

    International Nuclear Information System (INIS)

    The semi-arid region of the Northeast of Brazil is characterized by a lack of superficial waters due to the low pluviometric precipitation and high evaporation rates. Owing to these adverse climatic conditions, intense pressure is being put on the use of groundwater resources. However, there is still insufficient knowledge of the basic aquifers characteristics leading to an over exploitation of the water resources. The prevailance of crystalline rocks is connected to a fracture aquifer type of low productivity, where wells show, generally, yield rates lower than 3 m3·h-1. This work was developed in a semi-arid area located in the center-south region of Bahia State at 900 metres a.s.l., where were discovered several radioactive anomalies by aerogeophysical surveys performed during 70's decade, that allowed to set the uranium province named Lagoa Real. There were performed isotopic and geochemical analysis of groundwater sampled from twenty-five wells placed in crystalline rocks areas (granite or gneiss) covered by short layers of residual soil or alluvial sediments. The samples were analysed in a mass spectrometer for stable isotopic ratios, like δ2H, δ18O, δ13C (per mille VSMOW) and also measured for radiocarbon activity concentration (14C) to calculate the percentage of modern carbon (PMC) by AMS. The values of δ2H and δ18O defined a local evaporation line (LEL) with slope equal to 4.6 against the value of 7.4 for the Local Meteoric Water Line (Salvador station from 1972 to 1976). The radiocarbon ages, corrected by carbonate dissolution (through δ13C and DIC), showed very young waters that were recently recharged, perhaps during the last few years to several months. The supposed old ages for the fractured aquifer are not accomplished by radiocarbon dating, showing it is unconfined with no discharge of old groundwater through deep faults and short residence time. Thus, the groundwater offer for multiple uses (in terms of quantity) seems to be assured if the

  6. Determination of the concentration of radionuclides in soil and water next the uranium mine of Caetite, Bahia, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, Geangela M.; Souza, Susana O. [Federal University of Sergipe (UFS), Sao Cristovao, SE (Brazil). Dept. of Physics; Campos, Simara S.S. [State University of Southwest Bahia (UESB), Itapetinga, BA (Brazil). Dept. of Basic and Instrumental Studies; Gennari, Roseli F., E-mail: rgennari@dfn.if.usp.b [University of Sao Paulo (USP), Sao Paulo, SP (Brazil). Inst. of Physics. Dept. of Nuclear Physics

    2011-07-01

    The economic growing in Brazil is responsible for an urgent demand for energy. Uranium is the fuel used to generate nuclear power. Brazil has the sixth largest reserve of the uranium ore in the world and, nowadays there is only one mine under exploration (Uraniferous District of Lagoa Real - Caetite-BA). Some Non-Governmental Organizations (NGOs), such as Greenpeace, state that the explored uranium mine is dangerous and polluting, causing water contamination by uranium. So, the population would be receiving radiation doses above permissible limits. However, Industrias Nucleares do Brasil (INB) the company in charge of the complex extraction and production of yellow cake rejected these accusations. The main purpose of this work is the determination of the composition of natural radionuclides in the Uraniferous District of Lagoa Real in order to determine if the nearest population is exposed to environmental radiation. It was checked if there is water contamination due to the natural transport in the uranium mining surroundings. Soil and water samples from Caetite mine and also from nearby town were collected. Only one water sample collected had concentrations higher than the limits recommended by World Health Organization. The presence of radionuclides in soil samples is considered independent of mineral exploration. The effective dose rates in almost all samples are above the world average which is 2.4 mSv/y. To sum up, the presence of uranium in water and soil of the tested areas is probably due to the nature of the soil and not to the exploration of mine. (author)

  7. Determination of the concentration of radionuclides in soil and water next the uranium mine of Caetite, Bahia, Brazil

    International Nuclear Information System (INIS)

    The economic growing in Brazil is responsible for an urgent demand for energy. Uranium is the fuel used to generate nuclear power. Brazil has the sixth largest reserve of the uranium ore in the world and, nowadays there is only one mine under exploration (Uraniferous District of Lagoa Real - Caetite-BA). Some Non-Governmental Organizations (NGOs), such as Greenpeace, state that the explored uranium mine is dangerous and polluting, causing water contamination by uranium. So, the population would be receiving radiation doses above permissible limits. However, Industrias Nucleares do Brasil (INB) the company in charge of the complex extraction and production of yellow cake rejected these accusations. The main purpose of this work is the determination of the composition of natural radionuclides in the Uraniferous District of Lagoa Real in order to determine if the nearest population is exposed to environmental radiation. It was checked if there is water contamination due to the natural transport in the uranium mining surroundings. Soil and water samples from Caetite mine and also from nearby town were collected. Only one water sample collected had concentrations higher than the limits recommended by World Health Organization. The presence of radionuclides in soil samples is considered independent of mineral exploration. The effective dose rates in almost all samples are above the world average which is 2.4 mSv/y. To sum up, the presence of uranium in water and soil of the tested areas is probably due to the nature of the soil and not to the exploration of mine. (author)

  8. Anatomia dos órgãos vegetativos de Hymenaea martiana Hayne (Caesalpinioideae-Fabaceae): espécie de uso medicinal em Caetité-BA Anatomy of vegetative organs of Hymenaea martiana Hayne (Fabaceae-Caesalpinioideae): a species of medicinal use in Caetité-Bahia State, Brazil

    OpenAIRE

    Silva, M.S.; K.R.B. Leite; M.D. Saba

    2012-01-01

    Hymenaea martiana Hayne (Fabaceae-Caesalpinioideae) apresenta grande valor na medicina popular em Caetité. A casca, entrecasca do caule e a resina, são utilizadas no tratamento de diversos males. Neste estudo são apresentadas a caracterização anatômica e histoquímica dos órgãos vegetativos. Amostras foram coletadas e processadas segundo técnicas usuais em anatomia vegetal e histoquímica. Todos os órgãos apresentam, em visão transversal, epiderme unisseriada e cavidades secretoras. Cutícula es...

  9. Evaluation of natural radioactivity in superficial and underground drinking water, from the Caetite region, BA

    International Nuclear Information System (INIS)

    Brazil has the seventh greatest geological uranium reserve in the world with approximately 310 thousand tons. The Lagoa Real Uranium Province, in the region of Caetite and Lagoa Real, situated in South Center Bahia, is considered the most important monomineralic province in Brazil. Urban population who lives in the uranium district in the cities of Caetite, Lagoa Real and Livramento de Nossa Senhora uses drinking water originated from public supply. In the rural area, characterized by frequent draughts, residents receive water from digged and drilled wells and from small dams and reservoirs, as well, which are supplied by the rains. This work determined the levels of total alpha and beta radioactivity and the uranium concentrations in several kinds of water consumed by urban and rural population from the Lagoa Real Uranium Province. Total α and β activities were determined with a low-level gas flow proportional detector. The uranium concentrations were determined with an inductive coupled plasma-mass spectrometer (ICP-MS). The results obtained were confronted with the latest World Health Organization's recommendations from 2011, the ordinance number 2914 of December 12 2011 from the Health Ministry and CONAMA's resolutions. Natural radiation levels varied from 0,0041 ± 0,0004 Bq.L-1 to 0,80 ± 0,04 Bq.L-1 for total alpha activity and from 0,045 ± 0,003 to 3,00 ± 0,2 Bq.L-1 for total beta activity. Having the WHO and the HM as parameter, just two underground water samples, one located in the city of Lagoa Real and the other in the city of Caetite presented total alpha concentration above the value of 0,5 Bq.L-1 described in its recommendations, 0,80 ± 0,040 Bq.L-1 and 0,57 ± 0,03 Bq.L-1 respectively. For total beta three samples presented radioactivity levels above the 1 Bq.L-1 limit recommended by the WHO and established by the Health Ministry; 3,00 ± 0,2 Bq.L-1; 1,63 ± 0,13 Bq.L-1 and 1,19 ± 0,07 Bq.L-1., all of them situated in the Lagoa Real town. Two

  10. Anatomia dos órgãos vegetativos de Hymenaea martiana Hayne (Caesalpinioideae-Fabaceae: espécie de uso medicinal em Caetité-BA Anatomy of vegetative organs of Hymenaea martiana Hayne (Fabaceae-Caesalpinioideae: a species of medicinal use in Caetité-Bahia State, Brazil

    Directory of Open Access Journals (Sweden)

    M.S. Silva

    2012-01-01

    Full Text Available Hymenaea martiana Hayne (Fabaceae-Caesalpinioideae apresenta grande valor na medicina popular em Caetité. A casca, entrecasca do caule e a resina, são utilizadas no tratamento de diversos males. Neste estudo são apresentadas a caracterização anatômica e histoquímica dos órgãos vegetativos. Amostras foram coletadas e processadas segundo técnicas usuais em anatomia vegetal e histoquímica. Todos os órgãos apresentam, em visão transversal, epiderme unisseriada e cavidades secretoras. Cutícula espessa ocorre em todos os órgãos aéreos. A raiz é tetrarca. Colênquima lacunar foi encontrado no caule. Bainha de fibras esclerenquimáticas envolve os feixes vasculares dos órgãos aéreos. Células pétreas ocorrem no pecíolo. Tricomas tectores ocorrem em ambas as faces da folha. A folha é hipoestomática com estômatos paracíticos e o mesofilo é dorsiventral. Cristais de oxalato de cálcio ocorrem no caule, pecíolo e lâmina foliar. Compostos fenólicos ocorrem na raiz, pecíolo e nervura central da folha. Grãos de amido ocorrem na raiz, caule e pecíolo. Lipídios ocorrem em todos os órgãos. Acredita-se que compostos fenólicos e cavidades secretoras de resina podem justificar a utilidade medicinal da espécie pela população de Caetité.Hymenaea martiana Hayne (Fabaceae-Caesalpinioideae shows a great value in folk medicine in Caetité. Its bark, stem-bark and resin are used to treat various ailments. In this study, the anatomical and histochemical characterization of vegetative organs is reported. Samples were collected and processed according to usual techniques of plant anatomy and histochemistry. All organs have, by cross-sectional view, uniseriate epidermis and secretory cavities. Thick cuticle occurs in all aerial organs. The root is tetrarch. Lacunar collenchyma was found in the stem. Sclerenchymatic sheath of fibers surrounds the vascular bundles of the aerial organs. Stone cells occur in the petiole. Trichomes occur

  11. Seismic refraction technique aplications in the geotechnical characterization of the Cachoeira deposit massif, Caetite, State of Bahia, Brazil

    International Nuclear Information System (INIS)

    Geophysical surveys throught the Cachoeira Uranium deposit massif were carried out with the purpose of assisting in the geotechnical characterization for the implantation of the Mining-Industrial Complex projects on the Lagoa Real uranium deposits, Caetite municipality, state of Bahia, Brazil. This study discusses the methodology utilized in the geophysical surveys and their results as well as their applications to the geotechnical characterization as a whole. (D.J.M.)

  12. Geochemistry and isotope evolution of groundwater and recharge mechanisms at a uranium production centre in the semi-arid region of Caetite-BA, Brazil: Implications for groundwater management

    International Nuclear Information System (INIS)

    The semi-arid region of the northeast of Brazil is characterized by a lack of superficial waters due to low precipitation and high evaporation rates. Due to these adverse climatic conditions, intense pressure is being put on the use of groundwater resources. However, there is still insufficient knowledge about the aquifer system which is causing an overexploitation of the water resources. Groundwater is pumped from a fractured, crystalline aquifer of low productivity, where wells show generally yield rates lower than 3 m3 · h-1. The study was carried out in a semi-arid area located in the centre-south region of Bahia State at an elevation of 900 m a.s.L, where were discovered several radioactive anomalies by aerogeophysical surveys performed during the 1970s, that give origin to the uranium province named Lagoa Real.The research approach included isotopic and geochemical analysis of groundwater sampled from 25 wells placed in crystalline rock areas (granite or gneiss) covered by thin layers of residual soil or alluvial sediments. Groundwater is Na-HCO3 type water and relative high concentrations of Cl and SO4- are observed in some groundwater.The stable isotope data (δH and δ18O) showed that evaporation plays a role in the salinization of groundwater.The radiocarbon ages, corrected by carbonate dissolution (through δ13C and DIC), showed very young waters that were recently recharged, perhaps during the last few decades These data discard the possibility that groundwater salinization was caused by discharge of deeper saline groundwater through faults associated to a regional groundwater flow system. The presence of an active shallow groundwater flow system offers better possibility for sustainable use of the groundwater resources in this semi-arid region of Brazil. (author)

  13. Occupational program monitoring in Uranium Concentrate Unity at Caetite (URA) - Bahia State, Brazil: bioassay program

    International Nuclear Information System (INIS)

    The principal aim of bioassay monitoring program in Uranium Concentrate Unity, URA, in Caetite is the maintenance of acceptably safe and satisfactory working conditions, according to national and international norms. Specifically, the objective is to interpret measurements in terms of intake of uranium and committed effective dose, so that the results can be used to demonstrate compliance with the system of dose limitation and, mainly, the optimization of radiation protection. The employed technique is the measurement of uranium in excreta from workers in mine, crushing and uranium concentrate production areas. In conclusion, workers from mining and crushing areas should be monitored by the routine program; urine and feces samples should be analyzed by mass spectrometry, with ICP-MS. The operational monitoring program should be carried out in workers from uranium concentrate production area; urine and feces samples should be analyzed by less expensive techniques. (author)

  14. Occupational monitoring programme of uranium concentrate unit in Caetite, Brazil: Bioassay programme

    International Nuclear Information System (INIS)

    Full text: The principal aim of the bioassay monitoring program in the Uranium Concentrate Unity in Caetite is the maintenance of acceptable safe and satisfactory working conditions, according to national and international norms. Specifically, the objective is to interpret measurements in terms of intake of uranium and committed effective dose, so that the results can be used to demonstrate compliance with the system of dose limitation and, mainly, the optimization of radiation protection. The employed technique is the measurement of uranium in excreta from workers in mine, crushing and uranium concentrate production areas. The present work also aims at reporting the analysis results of incorporation of natural uranium, from bio analyses of urine on routine for class y insoluble uranium (ore dust) and operational monitoring for class D solubility uranium (Ammonium Diuranate), and committed effective dose estimates of workers occupationally exposed. In conclusion, workers from the mining and crushing areas should be monitored by the routine program; urine and feces samples should be analysed by mass spectrometry, with ICPMS. The operational monitoring program should be carried out in workers from the uranium concentrate production area; urine and feces samples may be analysed by less expensive techniques. For routine monitoring, based on the Mann-whitney Test, data from baseline monitoring were considered statistically equal to data from routine monitoring. Only three of out 24 workers showed results higher than the baseline, generating calculation of committed effective dose. However, none of them reached values bigger than those allowed to workers in Brazilian regulations. For operational monitoring the same behavior described above is repeated, with baseline data considered statistically equal to operational monitoring, and only three out of 18 workers showed higher values in the operational monitoring. Once again values were within the limits established in

  15. Early signals of environmental and health impacts caused by uranium mining in Caetite, Bahia, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Brito, Adelson S. de; Rego, Rita de Cassia Franco [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil). Dept. de Medicina Preventiva. Programa de Pos-Graduacao em Saude, Ambiente e Trabalho; Zucchi, Maria do Rosario [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil). Dept. de Fisica da Terra. Lab. de Fisica Nuclear Aplicada; Navarro, Marcus V. Teixeira, E-mail: mvtn@ifba.edu.b [Instituto Federal da Bahia (LAFIR/NTS/IFBA) Salvador, BA (Brazil). Nucleo de Tecnologia em Saude. Lab. de Fisica Radiologica

    2011-07-01

    Uranium mining and processing at Lagoa Real (Bahia, Brazil) in the southwest of Bahia state started in the year 2000.The processing of uranium ore for obtaining U3O8 (yellowcake) is done today in the processing unit of the Brazilian Nuclear Industries INB located in the area of the same municipality above mentioned. The production capacity is 400 tons / year of U3O8, and the reserves in this region are estimated at 100.000 tons of uranium without any other associated minerals, enough to supply the demand for nuclear power plants Angra I and II for over 100 years. Since the granting of AOP (Permanent Operation Authorization) by CNEN (National Commission on Nuclear Energy) in the year 2009, there were some incidents at the facility, such as: solvents and liquid containing uranium overflow; pipes rupture, causing indiscriminate dispersion of toxic acids and other chemical agents; collapse of parts of the slope of the open pit. CNEN admitted in an official press release on April 1, 2011 that 'INB has no capacity to produce annual reports on environmental monitoring (unable to perform radiometric measurements, etc.). The last time a report was released happened in the year 2008. These reports are vital to the environmental impact assessment of the facility'. Another potential source of environmental and health negative impacts on the local population could be linked to radon emission. What are the levels of this important pollutant in the affected areas? (author)

  16. Monitoring of Ra-226 and Ra-228 in manioc (Manihot utilissima) and its flour in uranium mining in Caetite - Tropical area in Brazil

    International Nuclear Information System (INIS)

    Full text: Tropical ecosystems have few developments from the radioecology point of view. In Brazil, radioecology studies had their development mainly in the 50's decade, but a little attention has been given to the radionuclides in food. The Uranium Concentrate Unit of 'Caetite' started operation in the 90's decade, and was preceded by the environmental pre-operational monitoring program, carried out during 15 years (1982-1999), according to established licensing procedures, using biological samples from the human and animal food chain. This work shows the results of last ten years of the pre-operational monitoring program of 'Caetite' in manioc (Manihot utilissima) and it's flour. The parameters studied are Ra-226 and Ra-228. Manioc (and it's flour) was chosen because of its role as the most important component of human food chain (82 kg/year for manioc and de same for manioc flour). This study was performed in 44 results of Ra-226 and 44 results of Ra-228 analyses, in 22 samples of manioc and 22 samples of manioc flour. For the analysis, initially, the Anderson-Darling goodness-of-fit test for the maximum likelihood to the gaussian distribution is executed. With the data adjusted to the gaussian curve, an Analysis of variance (ANOVA) test is executed. If there is difference between concentrations, t Student tests are then executed. The data have shown best goodness-of-fit to the log-normal distribution. After proper transformation (y=Ln(x+1)), data have shown best goodness-of-fit to the normal distribution. The ANOVA test applied to normalized data have pointed differences in concentrations, that were identified by t Student tests as the Ra-226 values in manioc and the Ra-228 values in manioc flour. All other values are statistically equal. (author)

  17. Environmental performance evaluation of waste management system of Uranium Concentrated Unit in Caetite city, Bahia State - Brazil

    International Nuclear Information System (INIS)

    The mining/milling activities have the potential to cause risks to the human health and to the environment. In uranium mining, besides inherent damages due to any mining activities there are radiological risks, that may be incurred even in short as in long terms. The large volumes of low activity mining/milling residues produced, are the great challenge in the waste management. Nowadays, the whole Brazilian uranium production come from Uranium Concentrated Unit (URA), a facility operated by Brazilian Nuclear Industry and located at a semi-arid region, in the Caetite city, Bahia state. This Unit is composed by a open pit mine and a milling facility. The present work assess the URA waste management system, the procedures adopted, focused on its environmental performance. It was observed that the waste management system is efficient in the control of the environmental impacts, however improvement chances are detected and a better performance may be reached. Concerning the liquids wastes, it was observed that the storage systems were not projected adequately. The storage capacity was not enough to support a intense rainfall period causing a overflow to the environment. In URA activities there is no radiological risk to the public, but its necessary to improve long term actions, constraints for the post-closure phase, e.g., appropriate institutional controls, restrictions on land use. Finally, it is advisable to introduce a Environmental Management System (EMS) for the whole facility. (author)

  18. Preliminary studies on fluid inclusions in metasomatic albite grains from Lagoa Real, Caetite, Ba, Brazil

    International Nuclear Information System (INIS)

    Preliminary fluid inclusion studies in metasomatic albite grains from the Lagoa Real uranium deposit pointed out to mixing of strong brines (23 wt% NaCl equivalent) with low salinity fluids (2.3 wt% NaCl equivalent). Microthermometry and crushing tests indicated elevated pressures and the presence of hidrocarbons in larger amount than CO2. The remobilization of uranium as uranyl carbonate complexes and its precipitation, reducing U6+ to U4+ by CH4, is considered as a possibility. (Author)

  19. Experimental study of the uranium mobility due to the weathering action at the uraniferous district of Caetite/Lagoa Real, Bahia, Brazil; Estudo experimental da mobilidade do uranio por acao intemperica, distrito uranifero de Caetite/Lagoa Real, Bahia, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Scislewski, Alexandro Rocha

    2004-01-15

    In the present research, the proposal was to develop a preliminary study about the geochemical behavior of determined chemical elements, mainly the uranium, during the action of weathering processes in the rocks that bear the uranium mineralizations of the Caetite-Lagoa Real region, State of Bahia, more specifically of the Jazida Cachoeira uranium mine. To reach this purpose were used samples that represent several stages of the milling process of the uranium ore, so selecting representatives of the host rock, the ore and the treated ore (waste from the milling plant) to be used in the laboratory-controlled experiments. The samples were dried, sieved and finally introduced in the reactors, these adapted from the Flow-Through Reactor of Brantley and Chen. In the geochemical point of view, the results of the experiments showed a distinct behavior between the samples. It was observed that the treated ore, in relation to the host rocks of the ore and the own ore, shown a faster and homogeneous interaction with the leaching solution; it was also noted that in the output solution of the treated ore samples existed a significant complexation of the uranium by the sulfate (S0{sub 4}{sup -2}), ), instead of the non treated samples (host rock and ore) that were complexed mainly by the carbonate (C0{sub 3}{sup -2}). These different results are attributed to the alterations imposed to the rock during the milling process, and occur mainly, during the acid attack in the leaching process of the milling plant. The results and conclusions of this research, in spite of been preliminary, are essential to understand the behavior of the geochemical speciation of the effluent solutions; to understand the alterations of a rock matrix, and finally, to understand the migration chemical behavior of the related chemical elements. It is expected that these results contribute, in the future, to a deeper knowledge of the processes that control the chemical composition of the natural waters from

  20. Experimental study of the uranium mobility due to the weathering action at the uraniferous district of Caetite/Lagoa Real, Bahia, Brazil

    International Nuclear Information System (INIS)

    In the present research, the proposal was to develop a preliminary study about the geochemical behavior of determined chemical elements, mainly the uranium, during the action of weathering processes in the rocks that bear the uranium mineralizations of the Caetite-Lagoa Real region, State of Bahia, more specifically of the Jazida Cachoeira uranium mine. To reach this purpose were used samples that represent several stages of the milling process of the uranium ore, so selecting representatives of the host rock, the ore and the treated ore (waste from the milling plant) to be used in the laboratory-controlled experiments. The samples were dried, sieved and finally introduced in the reactors, these adapted from the Flow-Through Reactor of Brantley and Chen. In the geochemical point of view, the results of the experiments showed a distinct behavior between the samples. It was observed that the treated ore, in relation to the host rocks of the ore and the own ore, shown a faster and homogeneous interaction with the leaching solution; it was also noted that in the output solution of the treated ore samples existed a significant complexation of the uranium by the sulfate (S04-2), ), instead of the non treated samples (host rock and ore) that were complexed mainly by the carbonate (C03-2). These different results are attributed to the alterations imposed to the rock during the milling process, and occur mainly, during the acid attack in the leaching process of the milling plant. The results and conclusions of this research, in spite of been preliminary, are essential to understand the behavior of the geochemical speciation of the effluent solutions; to understand the alterations of a rock matrix, and finally, to understand the migration chemical behavior of the related chemical elements. It is expected that these results contribute, in the future, to a deeper knowledge of the processes that control the chemical composition of the natural waters from this region in the

  1. Snakebites in Paraíba, Brazil

    Directory of Open Access Journals (Sweden)

    H. N. Albuquerque

    2005-09-01

    Full Text Available The epidemiological data on snakebites in the state of Paraíba, Brazil, is scarce. This accounts for the difficulties in helping the victims. Hence, to obtain the clinical and epidemic profile of the snakebite accidents in Paraíba, we studied the number of cases recorded in this state between January 1995 and December 2000. The data was collected from these sources: Center for Toxicological Assistance (Centro de Assistência Toxicológica - CEATOX and State Secretariat of Health (Secretaria Estadual de Saude, João Pessoa; 3rd Regional Health Center (3º Núcleo Regional de Saúde - NRS and the Division of Epidemiological Vigilance of the Municipal Secretariat of Health (Divisão de Vigilância Epidemiológica da Secretaria Municipal de Saúde - DVE/SMS, Campina Grande. The annual distribution of the snakebite incidence showed an irregularity and an increase in March, May and August; followed by a large reduction in November and December. It was also observed that snakebites occurred more frequently in the rural area, mainly among the male laborers between 10-49 years. In most cases, the bite occurred on the leg or foot. The interval between the snakebite and the medical assistance was less than six hours. The most common symptoms were pain, edema, erythema, and bleeding. The low lethality index and the high frequency of healing, without sequels, suggest that the treatment with serum neutralized the poison, indicating the efficacy of this treatment against snakebites by the specific species found in this region.

  2. Aerial gamma spectrometry of the uranium province of Lagoa Real (Caetite, BA, Brazil): go environmental aspects and distribution of the absorbed dose in the air

    International Nuclear Information System (INIS)

    In the present study, it was analyzed the surface concentrations of the natural radioelements K, U and Th, as well as the absorbed dose rate in air caused by gamma radiation from the Lagoa Real uranium province, which is located at the center southern portion of Bahia State and comprises an area of approximately 4.600 Km2. Data from the airborne gamma ray spectrometric survey of the region (Sao Timoeo Project) carried out in 1979, was used in this study. Besides, recent data of U, Th and absorbed dose rates from the Environmental Monitoring Program of the uranium concentration plant (URA), operated in the region by the Brazilian Nuclear Industries (INB), were used with the aim of inter compare the sampling points in the same geo referenced area. Imaging geo processing software's give support to frame maps of surface concentrations and ternary maps, as well as allow the integration of these with other themes (e.g. hydrology, geology, pedology) favouring the interpretation of geo environmental process from the radioactive cartography. Considering the whole study area, it was obtained the following mean values: absorbed dose rate in air (61,08 nGy.h-1), Potassium (1,65 % K) , Uranium (3,02 ppm eU) and thorium (18,26 ppm eTh). The geological unities bounding the uranium anomalies were placed in the areas characterized by the highest values of radioelements and, as expected, the major dose levels. The use of ternary maps coupled with the geology and hydrology allowed distinguishing the relationship between the surface distribution of natural radioelements and the geo environmental aspects, including the influence of the catchment in their transport and migration. (author)

  3. New records of agaricoid fungi (Basidiomycota from Paraíba, Brazil

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    Altielys Casale Magnago

    2015-12-01

    Full Text Available This work presents a list of eighteen species of agaricoid fungi collected in the Atlantic Forest in the state of Paraíba. Hygrocybe subcaespitosa and Marasmius similis are new records for Brazil. Sixteen species are new records for Paraíba.

  4. New records of agaricoid fungi (Basidiomycota) from Paraíba, Brazil

    OpenAIRE

    Altielys Casale Magnago; Ariadne Nóbrega Marinho Furtado; Salomé Urrea-Valencia; Anne Falcão Freitas; Maria Alice Neves

    2015-01-01

    This work presents a list of eighteen species of agaricoid fungi collected in the Atlantic Forest in the state of Paraíba. Hygrocybe subcaespitosa and Marasmius similis are new records for Brazil. Sixteen species are new records for Paraíba.

  5. Aerial gamma spectrometry of the uranium province of Lagoa Real (Caetite, BA, Brazil): go environmental aspects and distribution of the absorbed dose in the air; Espectrometria gama aerea da provincia uranifera de Lagoa Real (Caetite, BA): aspectos geoambientais e distribuicao da dose absorvida no ar

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Esau Francisco Sena

    2006-07-01

    In the present study, it was analyzed the surface concentrations of the natural radioelements K, U and Th, as well as the absorbed dose rate in air caused by gamma radiation from the Lagoa Real uranium province, which is located at the center southern portion of Bahia State and comprises an area of approximately 4.600 Km{sup 2}. Data from the airborne gamma ray spectrometric survey of the region (Sao Timoeo Project) carried out in 1979, was used in this study. Besides, recent data of U, Th and absorbed dose rates from the Environmental Monitoring Program of the uranium concentration plant (URA), operated in the region by the Brazilian Nuclear Industries (INB), were used with the aim of inter compare the sampling points in the same geo referenced area. Imaging geo processing software's give support to frame maps of surface concentrations and ternary maps, as well as allow the integration of these with other themes (e.g. hydrology, geology, pedology) favouring the interpretation of geo environmental process from the radioactive cartography. Considering the whole study area, it was obtained the following mean values: absorbed dose rate in air (61,08 nGy.h{sup -1}), Potassium (1,65 % K) , Uranium (3,02 ppm eU) and thorium (18,26 ppm eTh). The geological unities bounding the uranium anomalies were placed in the areas characterized by the highest values of radioelements and, as expected, the major dose levels. The use of ternary maps coupled with the geology and hydrology allowed distinguishing the relationship between the surface distribution of natural radioelements and the geo environmental aspects, including the influence of the catchment in their transport and migration. (author)

  6. Peixes recifais da costa da Paraíba, Brasil Reef fishes from Paraíba, Brazil

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    Luiz A. Rocha

    1998-01-01

    Full Text Available The coral reef is an ecossystem which evokes great interest, for its beaury, species diversity and fisheries potential. The coast of Paraíba State, northeast Brazil, possesses several natural reefs and shipwrecks which are inhabited by a rich fish fauna. In order to survey the reef fish fauna of Paraíba State, a total of 118 dives, utilizing SCUBA diving techniques, were carriedoutin 27samplingpoints (depths: 0,5-66m, from February/1995 to May/1996. Specimens were collected whenever underwater identification was precluded. A total of 157 known species belonging to 59 families were found. Four unidentified species, one dasyatid, one haemulid, one scarid, and one labrid were recorded. Haemulidae was the most representative family in number of individuais, whereas Carangidae was the most speciose family. This paper is part of a broader study of the northeast Brazilian reef fishes.

  7. Converting the Caetite mill process to enhance uranium recovery and expand production

    International Nuclear Information System (INIS)

    Full text: The Caetite uranium mill, located in Caetite - Bahia - Brazil, was commissioned in 2000 to produce about 880 000 pounds of uranium oxide per year from an uranium ore averaging 0.29% U3O8. The milling process starts with ore crushing followed by heap leaching with sulfuric acid solution to generate a pregnant leaching solution (PLS) containing about 2.5 g U3O8/L. Uranium separation and purification is carried out by solvent extraction with a kerosene solution of tertiary amine followed by stripping with an acidified sodium chloride aqueous solution. Uranium is precipitated as ammonium diuranate that is washed, filtered and dried. The historical average uranium recovery from this process is about 76%. As the Brazilian government has confirmed recently its plans to start building the third nuclear power plant in 2009, the Brazilian uranium production will have to double its capacity in the next two years. To fulfill the increasing demand, a change in the Caetite's milling process is being evaluated in order to not only increase the production but also the uranium recovery. In the new milling flow sheet the heap leaching process is changed to conventional tank agitated leaching of a - 0.59 mm ground ore slurry in sulfuric acid medium. Batch and pilot plant essays has shown that the uranium recovery increases to about 93% under the following conditions: grind size: -0.59 mm; slurry density: 65 solids wt%; leaching time: 4 hours; temperature: 60 deg C; oxidation potential: ∼500 mV; acid concentration in the PLS: ∼10 g/L. As the use of sodium chloride as the stripping agent has presented detrimental effects in the extraction/stripping process once all the process water is recycled, two alternative process are being evaluated for the uranium recovery from the PLS: (a) uranium peroxide precipitation at a controlled pH from a PLS that was firstly neutralized with ground limestone to pH 3.2 and filtered. Batch essays have shown good results with a final

  8. Characterization of clay of Vitoria da Conquista - BA - Brazil

    International Nuclear Information System (INIS)

    Kaolinitic clays are vastly used in ceramic industry. Kaolinitic clay that are not coloured after firing are very useful in the production of ceramics because of their aesthetic aspect after firing. In this work clay material from Vitoria da Conquista (South- West Bahia, Brazil) was characterized by several techniques. The differential Scanning Calorimetry (DSC) shows a kaolinite characteristic curve with an endothermic peak at 492 deg C, which corresponds to the kaolinite - metakaolinite transformation. The transformation of alpha to beta quartz characterized by a 573 deg C peak was also observed in DSC. The samples were also characterized by water absorption and x rays powder diffraction. The 1100 deg C burned samples were tested by flexural strength. (author)

  9. Plastic ingestion by sea turtles in Paraíba State, Northeast Brazil

    OpenAIRE

    Camila Poli; Daniel Oliveira Mesquita; Cinthia Saska; Rita Mascarenhas

    2015-01-01

    ABSTRACT Currently, plastics are recognized as a major pollutant of the marine environment, representing a serious threat to ocean wildlife. Here, we examined the occurrence and effects of plastic ingestion by sea turtles found stranded along the coast of Paraíba State, Brazil from August 2009 to July 2010. Ninety-eight digestive tracts were examined, with plastic found in 20 (20.4%). Sixty five percent (n = 13) of turtles with plastic in the digestive tract were green turtles (Chelonia mydas...

  10. Emergence of Klebsiella pneumoniae-producing KPC-2 carbapenemase in Paraíba, Northeastern Brazil

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    Lorena C.C. Fehlberg

    2012-12-01

    Full Text Available The emergence of KPC-2 producing K. pneumoniae in hospitalized patients at the intensive care unit (ICU of a teaching hospital located in the city of João Pessoa, Paraíba, Brazil, is reported. Seven carbapenem-resistant K. pneumoniae recovered from different body sites of infection were analyzed. Most isolates showed a multidrug-resistance phenotype. Genotypic analysis demonstrated the presence of two genotypes, with the predominance of genotype A, which belongs to ST 437. These isolates also carry the encoding genes of five other betalactamases.

  11. Floristic survey of weeds in a public park of Campina Grande, Paraíba, Brazil

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    Paulo Roberto de Medeiros

    2008-12-01

    Full Text Available Weeds are renowned by their remarkable seed dissemination, which favors their growth in unwanted places. The present study provides a list of the weed species found in Parque da Criança, Campina Grande, Paraíba, Brazil, from data collected between July and August of 2004. A total of 67 species belonging to 18 families were found. Of these, the families Poaceae, Asteraceae, Cyperaceae, Fabaceae, Amaranthaceae, Euphorbiaceae and Malvaceae were the most representative, grouping 76% of all species encountered. Poaceae and Asteraceae, which are very representative in the studied park, are amongst the families with the highest number of weed species in Brazil, sharing various features, which favor their development. Based on the data provided in this study, weed control (carried out periodically in the studied area may be implemented more efficiently, since the processes of controlling weeds are frequently species-specific.

  12. Genetic characterization of Trypanosoma cruzi natural clones from the state of Paraíba, Brazil

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    Christian Barnabé

    2005-05-01

    Full Text Available Eighteen Trypanosoma cruzi stocks from the state of Paraíba, Brazil, isolated from man, wild mammals, and triatomine bugs were studied by multilocus enzyme electrophoresis and random primed amplified polymorphic DNA. Despite the low number of stocks, a notable genetic, genotypic, and phylogenetic diversity was recorded. The presence of the two main phylogenetic subdivisions, T. cruzi I and II, was recorded. The strong linkage disequilibrium observed in the population under survey suggests that T. cruzi undergoes predominant clonal evolution in this area too, although this result should be confirmed by a broader sample. The pattern of clonal variation does not suggests a recent origin by founder effect with a limited number of different genotypes.

  13. Vascular flora of an inselberg in the state of Paraíba, in Northeast Brazil

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    Elisabeth Emília Augusta Dantas Tölke

    2011-12-01

    Full Text Available This study characterized the floristic composition of an inselberg in the Puxinanã municipality, of Paraíba, in Northeast Brazil. Ninety-seven species were recorded that belong to 35 families: Asteraceae (12 spp., Euphorbiaceae and Fabaceae (nine spp. each, Rubiaceae and Convolvulaceae (eight spp. each were the richest families, comprising 47.42% of the total species registered. The herbaceous habit was predominant, occurring in 39% of the species, followed by species of shrubs (22%, vines (20%, rupicolous plants (6%, subshrubs (5%, trees (4% and epiphytes (1%. Passiflora luetzelburgii Harms (Passifloraceae is a new record for the flora of the state. The data from this study provides information that could be used in the conservation and rational use of the study area, and contributes to what is known about the flora and vegetation of the Caatinga.

  14. Contribution to the stratigraphy of the onshore Paraíba Basin, Brazil

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    Dilce F. Rossetti

    2012-06-01

    Full Text Available Several publications have contributed to improve the stratigraphy of the Paraíba Basin in northeastern Brazil. However, the characterization and distribution of sedimentary units in onshore areas of this basin are still incomplete, despite their significance for reconstructing the tectono-sedimentary evolution of the South American passive margin. This work provides new information to differentiate among lithologically similar strata, otherwise entirely unrelated in time. This approach included morphological, sedimentological and stratigraphic descriptions based on surface and sub-surface data integrated with remote sensing, optically stimulated luminescence dating, U+Th/He dating of weathered goethite, and heavy mineral analysis. Based on this study, it was possible to show that Cretaceous units are constrained to the eastern part of the onshore Paraíba Basin. Except for a few outcrops of carbonatic rocks nearby the modern coastline, deposits of this age are not exposed to the surface in the study area. Instead, the sedimentary cover throughout the basin is constituted by mineralogically and chronologically distinctive deposits, inserted in the Barreiras Formation and mostly in the Post-Barreiras Sediments, of early/middle Miocene and Late Pleistocene-Holocene ages, respectively. The data presented in this work support tectonic deformation as a factor of great relevance to the distribution of the sedimentary units of the Paraíba Basin.Várias publicações têm contribuído para melhorar a estratigrafia da Bacia Paraíba no nordeste do Brasil. Entretanto, a caracterização e distribuição das unidades sedimentares em áreas continentais desta bacia são ainda incompletas, apesar de sua importância para reconstruir a evolução tectono-sedimentar da margem passiva sulamericana. Este trabalho fornece novas informações para diferenciar entre estratos litologicamente similares que, por outro lado, não são relacionados no tempo. Esta

  15. Systemic acanthamoebiasis associated with canine distemper in dogs in the semiarid region of Paraíba, Brazil

    OpenAIRE

    Maria T.S. Frade; Luiza F. de Melo; Clarice R.M Pessoa; Jeann L. de Araújo; Rafael A Fighera; Almir P. Souza; Francisco Uzal; Antonio F.M. Dantas

    2015-01-01

    Infections by free-living amoebae can cause systemic disease in animals and humans. We describe the epidemiological, clinical and pathological aspects of disseminated acanthamoebiasis associated with canine distemper in three dogs of the semiarid region of Paraíba, Northeastern Brazil. Affected dogs developed progressive neurological and respiratory signs that progressed to death within in two to 20 days. Gross lesions were irregular and with yellow-reddish nodules randomly distributed in the...

  16. Prevalence of canine hepatozoonosis in Areia, Paraíba, Brazil

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    Maria das Graças da Silva Bernardino

    2016-02-01

    Full Text Available Canine hepatozoonosis is a parasitic disease of debilitating nature. Also, it is immunosuppressive and difficult to diagnose clinically. The prevalence of the disease in dogs has been described in several Brazilian states, but studies are still scarce in the Northeast region. Accordingly, this study aimed to determine the prevalence of canine hepatozoonosis in Areia, Paraíba, Brazil. The dogs were clinically examined, and peripheral blood samples were obtained from the tip of the ear. Of the 151 dogs analyzed, 9.3% were positive for Hepatozoon canis by the demonstration of gamonts parasitizing neutrophils. The degree of parasitemia ranged from mild to intense. The observed hematological changes were different between animals and showed no pattern of response to infection. The subclinical form was observed in 50% of dogs and the others had nonspecific clinical signs. We conclude that hepatozoonosis occurs in dogs in the urban area of the city studied and that dogs infected with H. canis show hematological changes and nonspecific clinical signs.

  17. Plastic ingestion by sea turtles in Paraíba State, Northeast Brazil

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    Camila Poli

    2015-09-01

    Full Text Available ABSTRACT Currently, plastics are recognized as a major pollutant of the marine environment, representing a serious threat to ocean wildlife. Here, we examined the occurrence and effects of plastic ingestion by sea turtles found stranded along the coast of Paraíba State, Brazil from August 2009 to July 2010. Ninety-eight digestive tracts were examined, with plastic found in 20 (20.4%. Sixty five percent (n = 13 of turtles with plastic in the digestive tract were green turtles (Chelonia mydas, 25% (n = 5 were hawksbills (Eretmochelys imbricata, and 10% (n = 2 were olive ridley (Lepidochelys olivacea. More plastic was found in the intestine (85% than in other parts of the gastrointestinal tract. We observed complete blockage of the gastrointestinal tract due to the presence of plastic in 13 of the 20 turtles that had ingested plastic. No correlation was found between the curved carapace length (CCL and the number or mass of the plastic ingested items. Significant differences were found between the intake of hard and soft plastic and the ingestion of white/transparent and colored plastic, with soft and white/transparent plastics being more commonly ingested. This study reveals the serious problem of plastic pollution to sea turtles at the area.

  18. Epidemiology of snakebite accidents in the municipalities of the state of Paraíba, Brazil.

    Science.gov (United States)

    Leite, Renner de Souza; Targino, Isabely Tamarys Gomes; Lopes, Ysabel Arianne Cordeiro Ferreira; Barros, Rafaella Moreno; Vieira, Alecxandro Alves

    2013-05-01

    Accidents involving venomous animals represent an important, albeit neglected, public health issue worldwide. A descriptive study was made of snakebite cases attended and recorded between 2007 and 2010 in the health units of the municipalities of Cariri, State of Paraíba, northeastern Brazil. Data was collected from the Injury Notification Information System data banks of the Health Ministry and a total of 351 records of snakebite victims were reviewed. Victims were predominantly male farm workers over 50. The highest incidence of snakebites occurred in rural areas, between April and June of 2007 and 2010. Snakes of the genus Bothrops were responsible for most cases, and victims were mostly bitten on the feet. The majority of the victims received medical assistance within 1 to 3 hours after being bitten. The most common clinical manifestations were pain, edema and ecchymosis, which were mainly classified as mild or moderate. Two deaths were reported. It was concluded that there is a significant impact of seasonality in snakebites, the prevalence of attacks caused by Bothrops, affecting the lower limbs of adult male farmers in rural areas. The findings of this study may contribute to identify the conditions that increase the risk of snake attacks in the northeastern region. PMID:23670475

  19. A taxonomic guide to the brittle-stars (Echinodermata, Ophiuroidea from the State of Paraíba continental shelf, Northeastern Brazil

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    Anne Gondim

    2013-06-01

    Full Text Available We provide the first annotated checklist of ophiuroids from the continental shelf of the State of Paraíba, northeastern Brazil. Identification keys and taxonomic diagnoses for 23 species, belonging to 14 genera and 8 families, are provided. The material is deposited in the Invertebrate Collection Paulo Young, at the Federal University of Paraíba. Ophiopsila hartmeyeri represents the first record for the northeastern region of Brazil, while Ophiolepis impressa, O. paucispina, Amphiura stimpsoni, Amphiodia riisei, Ophiactis quinqueradia, Ophiocoma wendtii and Ophionereis olivaceae are new records for the State of Paraíba. The number of species known for the state was increased from 16 to 23, representing approximately 17% of the species known for Brazil and 54% of the species known for northeastern Brazil. The recorded fauna has a large geographical and bathymetrical distribution.

  20. Paleoenvironmental reconstitution of Motuca and Sambaíba formations, Permian-Triassic of the Parnaíba Basin in southwest Maranhão state, Brazil

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    Francisco Romério Abrantes Júnior

    2013-09-01

    Full Text Available The interval between the Late Paleozoic and Early Mesozoic was marked by paleogeographic and paleoclimatic global changes, partly attributed to catastrophic events. The intense continentalization of the supercontinent Pangaea of End-Permian propitiated the development of extensive deserts that succeeded the coastal and platform environments of Early Permian. The records of these events in northern Brazil are found in intracratonic basins, particularly in the Permo-triassic succession of the Parnaíba Basin. The facies and stratigraphic outcrops analysis of this succession allowed the individualization of 14 sedimentary facies grouped into four facies associations (FA: FA1 and FA2 related to deposits of Motuca Formation and, FA3 and FA4, representative of the base of Sambaíba Formation. The FA1 – Shallow lake/Mudflat consists of red laminated mudstone with lenses of gypsum, calcite and marl, besides lobes of sigmoidal sandstones. The FA2 – Saline pan consists of lenticular bodies of laminated gypsum, nodular gypsum and gypsarenite, overlapped by greenish mudstones with dolomite nodules and palygorskite. The FA3 – sand sheet and FA4 – dunes field are formed, respectively, for orange cream sandstones with even parallel stratification and medium- to large-scale cross-bedding. In the contact between Motuca and Sambaíba formations occurs a deformed interval, laterally continuous for hundreds of kilometers. Brecciated and contorted bedded siltstones and mudstone (Motuca Formation and sandstone with sinsedimentary faults/microfaults, convolute lamination and mud-filled injection dykes (Sambaíba Formation are interpreted as seismites triggered by high magnitude earthquakes (> 8 according Richter scale.

  1. Inorganic As speciation and bioavailability in estuarine sediments of Todos os Santos Bay, BA, Brazil

    International Nuclear Information System (INIS)

    Research highlights: → Total concentration of As at several stations along Todos os Santos Bay, was above TEL value. → At Subae and Paraguacu systems, As (V) was the dominant species, which is less toxic and less mobile than As (III). → Arsenic concentrations at Jaguaripe estuary were higher than in other estuaries and As (III) was the dominant species. → Relationship between As, Fe, Mn and sand indicated that As enrichment at Jaguaripe River is natural. → As concentrations in sediments and biota suggest that As is bioavailable and it is accumulating in marine organisms, which may impose human risks. → Slurry sampling showed to be a easy, accurate procedure to be used for As determination in estuarine samples. - Abstract: The spatial distribution of As (total As, As (III) and As (V)) in estuarine sediments from the main tributaries of Todos os Santos Bay, BA, Brazil, was evaluated under high and low flow conditions. The concentrations of As were determined using a slurry sampling procedure with hydride generation atomic absorption spectrometry (HG-AAS). The highest concentrations were observed at estuary mouths, and exceeded conservative lower threshold value (Threshold Effects Level; TEL). Due to the oxic conditions and abundance of Mn and Fe (oxyhydr)oxides in the sediments, most inorganic arsenic in the Subae and Paraguacu estuaries was present as As (V). Nevertheless, the concentration of As (III) at several locations along the Jaguaripe River were also above the TEL value, suggesting that As may be toxic to biota. In the Subae estuary, antropogenic activities are the main source of As. At the Jaguaripe and at Paraguacu estuaries, nevertheless, natural sources of As need to be considered to explain the distribution patterns.

  2. Cytogenetic data on Astyanax jacuhiensis (Characidae in the lago Guaíba and tributaries, Brazil

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    Rosiley B. Pacheco

    2010-01-01

    Full Text Available Cytogenetic analyses were performed in Astyanax jacuhiensis from lago Guaíba, Brazil. The diploid number was 50, with a karyotype composed of 8m+30sm+4st+8a chromosomes, FN = 92. The AgNORs were observed in 2 to 5 chromosomes, with intra- and interindividual variation. The sm pair 8 observed always carried NORs on the short arms, presenting size heteromorphism between homologous. Fluorescence in situ hybridization (FISH with an 18S rDNA probe only confirmed the location of ribosomal cistrons in the sm pair 8, and heteromorphism of these regions between the homologous chromosomes. C-banding revealed the occurrence of weak C-positive heterochromatin in the pericentromeric regions of several chromosomes, in addition to more evident bands interstitially located on some chromosome pairs and in the terminal region of the short arms in pair 8. C-banding plus CMA3 revealed light fluorescent signals in different chromosomes of the karyotype, with a strong terminal site in pair 8, indicating the occurrence of several GC-rich heterochromatic regions in this species. Our results provide the first description of the Astyanax jacuhiensis karyotype, showing karyotype similarities when compared to various populations of A. altiparanae and A. bimaculatus, indicating that chromosomal features are very similar for these three species.Análises citogenéticas foram realizadas em Astyanax jacuhiensis do lago Guaíba, Brasil. O número diplóide foi 50, sendo o cariótipo composto por 8m+30sm+4st+8a cromossomos, NF = 92. As regiões organizadoras de nucléolos (AgNORs foram observadas em 2 a 5 cromossomos, evidenciando uma variação intra e interindividual nesta espécie. O par sm 8 foi constantemente detectado com NORs nos braços curtos, mostrando um heteromorfismo de tamanho entre os homólogos. Entretanto, a hibridação in situ fluorescente (FISH com sonda de DNAr 18S, localizou cístrons ribossômicos apenas no par 8, confirmando o heteromorfismo de tamanho

  3. Crustal structure beneath the Paleozoic Parnaíba Basin revealed by airborne gravity and magnetic data, Brazil

    Science.gov (United States)

    de Castroa, David L.; Fuck, Reinhardt A.; Phillips, Jeffrey D. Phillips; Vidotti, Roberta M.; Bezerra, Francisco H.R.; Dantas, Elton L.

    2014-01-01

    The Parnaíba Basin is a large Paleozoic syneclise in northeastern Brazil underlain by Precambrian crystalline basement, which comprises a complex lithostructural and tectonic framework formed during the Neoproterozoic–Eopaleozoic Brasiliano–Pan African orogenic collage. A sag basin up to 3.5 km thick and 1000 km long formed after the collage. The lithologic composition, structure, and role in the basin evolution of the underlying basement are the focus of this study. Airborne gravity and magnetic data were modeled to reveal the general crustal structure underneath the Parnaíba Basin. Results indicate that gravity and magnetic signatures delineate the main boundaries and structural trends of three cratonic areas and surrounding Neoproterozoic fold belts in the basement. Triangular-shaped basement inliers are geophysically defined in the central region of this continental-scale Neoproterozoic convergence zone. A 3-D gravity inversion constrained by seismological data reveals that basement inliers exhibit a 36–40.5 km deep crustal root, with borders defined by a high-density and thinner crust. Forward modeling of gravity and magnetic data indicates that lateral boundaries between crustal units are limited by Brasiliano shear zones, representing lithospheric sutures of the Amazonian and São Francisco Cratons, Tocantins Province and Parnaíba Block. In addition, coincident residual gravity, residual magnetic, and pseudo-gravity lows indicate two complex systems of Eopaleozoic rifts related to the initial phase of the sag deposition, which follow basement trends in several directions.

  4. Clinical and mycological study of scalp white piedra in the State of Paraíba, Brazil

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    Zélia Braz Vieira da Silva Pontes

    2002-07-01

    Full Text Available White piedra is a superficial mycoses characterized by nodules on the hair shaft, caused by the basidiomycetous yeasts. In the present study, clinical and mycological findings of scalp white piedra caused by Trichosporon spp. are related. Twenty three cases of scalp white piedra were observed with a high incidence in women (87% and preschool children from 2 to 6 (74% years old. These groups presented a relationship of dependence with this infection. Despite the low socio-economic status, poor standards of hygiene, (48% of the patients as well as the fact that 30.4% of the children shared the same nursery, these factors were not significant for the transmission of the mycosis. These were the first reports of scalp white piedra in João Pessoa city, Paraíba, Brazil.

  5. Adenovirus, enterovirus and thermotolerant coliforms in recreational waters from Lake Guaíba beaches, Porto Alegre, Brazil.

    Science.gov (United States)

    Maurer, C P; Simonetti, A B; Staggemeier, R; Rigotto, C; Heinzelmann, L S; Spilki, F R

    2015-12-01

    In the present study, molecular detection of human adenoviruses (HAdV) and enteroviruses (EV) was performed in surface water samples collected from beaches Ipanema and Lami, located on the shores of Lake Guaíba, city of Porto Alegre, RS, southern Brazil. Furthermore, water safety was evaluated by counting thermotolerant coliforms (TC), following local government regulations. A total of 36 samples were collected monthly from six different sites along the beaches. Viral genomes were found in 30 (83.3%) samples. The higher detection rate was observed for HAdV (77.8%), followed by EV (22.2%). Although low concentrations of TC have been found, the occurrence of viral genomes in water samples was frequent and may pose a potential risk of infection for people bathing in these beaches. PMID:26608773

  6. Systemic acanthamoebiasis associated with canine distemper in dogs in the semiarid region of Paraíba, Brazil

    Directory of Open Access Journals (Sweden)

    Maria T.S. Frade

    2015-02-01

    Full Text Available Infections by free-living amoebae can cause systemic disease in animals and humans. We describe the epidemiological, clinical and pathological aspects of disseminated acanthamoebiasis associated with canine distemper in three dogs of the semiarid region of Paraíba, Northeastern Brazil. Affected dogs developed progressive neurological and respiratory signs that progressed to death within in two to 20 days. Gross lesions were irregular and with yellow-reddish nodules randomly distributed in the lungs, heart, kidneys, spleen, lymph nodes, adrenals, and intestine. One dog had foci of malacia in the parietal cortex and another one in nucleus of brain basis. Histologically, pyogranulomas with areas of necrosis and hemorrhage in all organs affected were observed, associated with myriads of intralesional amoebic trophozoites. All three cases were concomitant canine distemper, that possibly triggered immunosuppression in the dogs. The diagnosis was performed through microscopic findings of infection by free-living amoebae and confirmed Acanthamoeba sp. by immunohistochemistry

  7. Comida de rua: um estudo crítico e multirreferencial em Salvador, BA − Brasil / Street food: A critical and multifaceted study in Salvador, BA, Brazil

    Directory of Open Access Journals (Sweden)

    Cristian Oliveira Benevides Sanches Leal

    2014-11-01

    Full Text Available O objetivo deste artigo é descrever e analisar a situação da comida de rua em Salvador, BA – Brasil, compreendendo suas especificidades em diferentes contextos da cidade. Trata-se de estudo de caso único, cujas técnicas de coleta de dados foram a observação de cunho etnográfico, entrevistas semiestruturadas, uso de imagens e leitura de jornal local ao logo de um ano em três aspectos relacionados ao segmento: riscos relacionados aos alimentos e ao ambiente onde são comercializados e riscos relacionados aos trabalhadores. Os resultados indicaram grandes fragilidades relacionadas às categorias analisadas: diversidade de alimentos comercializados, mal manipulados e conservados; ambiente urbano insalubre, sem pontos de água, coleta de lixo inadequada, drenagem precária de águas e poluição atmosférica pelo elevado número de veículos; trabalhadores sem qualificação, sem uniformização adequada e submetidos a riscos sociais e ambientais constantes. Evidencia-se a necessidade da adoção de novas formas de gerenciamento de riscos para o segmento pela Vigilância sanitária, numa perspectiva intersetorial e solidária, dada a complexidade do objeto e a importância socioeconômica, cultural e nutricional da comida de rua. Constata-se a dificuldade para a VISA controlar os riscos relacionados à comida de rua atuando de forma apenas fiscalizatória, especialmente em grandes centros urbanos, como no caso de Salvador, BA. ==================================== This study aims to describe and analyze the present situation of street food in Salvador, BA, Brazil, understanding its specificities in different urban contexts. In this single case study, the data collection techniques included ethnographic observation, semi-structured interviews, use of images, and reading a local newspaper for one year focusing on three aspects related to the segment that include risks related to food, to the environment in which it is sold, and to workers

  8. Participatory and decentralized water resources management: challenges and perspectives for the North Paraíba River Basin committee - Brazil.

    Science.gov (United States)

    Ribeiro, M A F M; Vieira, Z M C L; Ribeiro, M M R

    2012-01-01

    The Brazilian Water Resources Policy (Law 9433/1997) establishes participatory and decentralized management, involving civil society, water users and governmental bodies, with the basin committees as the basis of this process. Fifteen years after its implementation, it is possible to perceive accomplishments, but, at the same time, there are some difficulties in regards to the operation of the basin committees in the country. Considering the North Paraíba River Basin - which is completely included in the State of Paraíba, Northeastern Brazil, and presents great social and economic importance for the state - this article analyzes the process of formation, installation and functioning of its Basin Committee (CBH-PB), focusing on its composition, the reasons for the mobilization and demobilization of its members, the intra-relations between segments, and the inter-relations between the CBH-PB and other entities of the State Water Management System (the Water Executive Agency and the State Water Resources Council). The level of decentralization and the quality of participatory management (as it is being performed at the CBH-PB) are discussed and guidelines are suggested in order to allow greater effectiveness to the committee. PMID:22925876

  9. Gastrointestinal parasitic worms in equines in the Paraíba Valley, State of São Paulo, Brazil.

    Science.gov (United States)

    Pereira, J R; Vianna, S S S

    2006-09-10

    Over a period of 12 years, from 1988 to 2000, a total of 20 individual equines (16 horses and 4 mules) were selected at random, from 10 municipalities in the Paraíba Valley, in the State of São Paulo, Brazil, and then subjected to necropsy for collection of gastrointestinal worms. Individual samples of 10% of the intestinal contents were also taken for counting and identifying the species present, and to establish the prevalence of worms in equine species in the Paraíba Valley. In the sample considered, the presence of parasites ranged from 155 to 1249 worms. Tapeworms (Cestoidea) were present in about 85% of the animals studied, and roundworms (Nematoda) in 100% of the individuals. All the tapeworms collected were of one single species, Anoplocephala perfoliata. In the case of the roundworms, the prevalence of individual species was: 100% for Cyathostomineae, 90% for Oxyuris equi, 70% for Strongylus vulgaris, 45% for S. edentatus, 15% for Strongylus equinus, 60% for Triodontophorus sp., 50% for Gyalocephalus capitatus, 15% for Oesophagodontus robustus and Craterostomum acuticaudatum, and 5% each for Parascaris equorum, Probstimayria vivipara, Habronema muscae, and Trichostrongylus axei. No specimens of flukes (Trematoda) were found in any of the animals studied. PMID:16687215

  10. Parasites of Psittaciformes and Accipitriformes in Paraíba state, northeastern Brazil.

    Science.gov (United States)

    Melo, Cristiane Maria Fernandes de; Oliveira, Jaqueline Bianque; Feitosa, Thais Ferreira; Vilela, Vinícius Longo Ribeiro; Athayde, Ana Célia Rodrigues; Dantas, Antônio Flávio Medeiros; Wagner, Paulo Guilherme Carniel; Febrônio, Andrei Brum

    2013-01-01

    In this study, we investigated the presence of gastrointestinal helminths in 97 captive birds (Psittaciformes and Accipitriformes) necropsied between June and December 2011 in the state of Paraiba, Brazil. Forty-three birds were infected. Psittaciformes were infected by nematode Ascaridia hermaphrodita (97.6%) and cestode Raillietina sp. (2.4%). A. hermaphrodita was found in all species of parrots and Raillietina sp. was found only in Amazona aestiva. A. hermaphrodita was the cause of death, by intestinal obstruction, in 14 of the 40 birds investigated. Accipitriformes were infected by nematode Synhimantus (Synhimantus) rectus (100%) and acantocephalan Centrorhynchus tumidulus (50%). In Brazil, Diopsittaca nobilis and A. aestiva are reported for the first time as hosts of A. hermaphrodita and Raillietina sp., respectively. We concluded that Psittaciformes and Accipitriformes in captivity are affected by nematodes, cestodes and acanthocephalans and that implementation of control measures is essential. PMID:23856738

  11. Phenological aspects of Thelypteris interrupta (Willd.) K. Iwats. (Thelypteridaceae) in a fragment of Atlantic Forest in Paraíba, northeastern Brazil

    OpenAIRE

    Rafael de Paiva Farias; Sergio Romero da Silva Xavier

    2011-01-01

    This study analyzed the phenological aspects of a population of Thelypteris interrupta (Willd.) K. Iwats. that occurs in a fragment of Atlantic Forest in the state of Paraíba, Brazil. A population of this species was delimited in a field and observed for 12 months, during which phenological data was recorded and then compared to seasonal climatological data. The results revealed that climatic seasonality did not influence phenological events in T. interrupta. Moreover, there were no differenc...

  12. Record of the occurrence of Lachesis muta (Serpentes, Viperidae) in an Atlantic Forest fragment in Paraíba, Brazil, with comments on the species’ preservation status

    OpenAIRE

    Daniel Oliveira Mesquita; Arielson Santos Protázio; Daniel Orsi Laranjeiras; Diego José Santana; Ralph Lacerda de Albuquerque; Ricardo Rodrigues; Frederico Gustavo Rodrigues França

    2013-01-01

    In this study, one describes a new record of the bushmaster snake, Lachesis muta, in an Atlantic Forest fragment in the state of Paraíba, northeastern Brazil. This species is regarded as the largest venomous snake from the New World. The specimen was found at night, crossing a narrow shortcut, close to a slope, about 20m away from a waterfall. The occurrence of L. muta in this fragment demonstrates the importance of conservating Atlantic Forest fragments for preservating this species.

  13. Geophysical evidence of pre-sag rifting and post-rifting fault reactivation in the Parnaíba basin, Brazil

    OpenAIRE

    de Castro, David Lopes; Bezerra, Francisco Hilário; Fuck, Reinhardt Adolfo; Vidotti, Roberta Mary

    2016-01-01

    This study investigated the rifting mechanism that preceded the prolonged subsidence of the Paleozoic Parnaíba basin in Brazil and shed light on the tectonic evolution of this large cratonic basin in the South American platform. From the analysis of aeromagnetic, aerogravity, seismic reflection and borehole data, we concluded the following: (1) large pseudo-gravity and gravity lows mimic graben structures but are associated with linear supracrustal strips in the basement. (2...

  14. Capture techniques' use of Caranguejo-uçá crabs (Ucides cordatus) in Paraíba state (northeastern Brazil) and its socio-environmental implications

    OpenAIRE

    Douglas M. Nascimento; Ferreira, Emmanoela N; Dandara M.M.S.Q. Bezerra; Rocha, Pollyana D; Alves, Rômulo R. N.; José S. Mourão

    2012-01-01

    The present study was undertaken in two traditional communities that are located on the margins of the estuary and mangrove complex of the Mamanguape River, Paraíba state (PB), Brazil. This work describes the crabs capture techniques tapamento and redinha, and identifies the negative socio-environmental impacts of redinha, using qualitative methods (open and semi-structured interviews, guided tours, direct observation and the administration of questionnaires). Results indicate that currently ...

  15. Floristic composition of the riparian forest in the lower Gramame river, Paraíba, Brazil

    Directory of Open Access Journals (Sweden)

    Hermes de Oliveira Machado Filho

    2015-09-01

    Full Text Available Riparian forest has a key ecological and economic significance to productive chains associated with it. This study aimed to conduct a floristic survey of riparian forest stretches in the Gramame river, state of Paraíba, Brazilian Northeast region, and analyze the floristic similarity with Brazilian riparian vegetation fragments. We found 136 species belonging to 106 genera and 43 families. The most representative families were: Fabaceae (19 spp., Cyperaceae (16 spp., and Rubiaceae (11 spp.. The predominant habit was herbaceous and the best represented biological spectrum was camephyte. Regarding the geographic distribution, there was a predominance of widely distributed species associated with the Neotropical province. The distribution patterns have shown a low similarity between areas, and largely distributed species stand out. Similarity analysis pointed out that the area was floristically related to other two coastal areas in the Brazilian Northeast and Southeast regions. Only species typically related to estuarine environments might explain the floristic connections detected.

  16. Local knowledge about cacti in rural communities in the mesoregion of Paraíba State (Northeastern Brazil

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    Nayze de Almeida Marreiros

    2012-09-01

    Full Text Available The goal of this study was to record the uses and knowledge of cacti in the rural communities of Barroquinha and Besouro, in the municipality of Lagoa, in Paraíba, Brazil. Semi-structured interviews were conducted with 52 informants (men and women. The cacti cited were organized into eight categories of use. Five species were identified in the communities: Cereus jamacaru DC., Melocactus sp., Pilosocereus chrysostele (Vaupel Byles & G. D. Rowley, Nopalea cochenillifera (L. Salm-Dyck and Pilosocereus gounellei (F.A.C. Weber Byles & Rowley. We registered 201 citations of use in Barroquinha, which were placed in seven categories, and 76 citations in Besouro, which were placed in eight categories. In both communities, C. jamacaru was the most used specie and forage was the most common category of use. Within the communities, the menand women had similar knowledge about these plants. In relation to the transmission of knowledge, there was a predominance of a vertical transmission, from parents to children. Based on the categories applied to the species, the various uses recorded show that these cacti are important to the Besouro and Barroquinha communities.

  17. Identifying enterobacteria in blond capuchin monkeys (Sapajus flavius kept in captivity in the state of Paraíba, Brazil

    Directory of Open Access Journals (Sweden)

    Ayodhya Cardoso Ramalho

    2015-09-01

    Full Text Available This study aimed to isolate and identify enterobacteria observed in two populations of blond capuchin monkeys (Sapajus flavius kept in captivity. The study was conducted with 12 animals, 6 from the Wild Animals Screening Center (CETAS, in Cabedelo, Paraíba, Brazil, and 6 from the João Pessoa City Zoo. The collection of stool samples was performed directly into the rectal ampoule by using sterile swabs and they were processed for isolating bacteria on selective media, followed by identification through biochemical tests. The frequencies observed in the samples collected at CETAS were: 80% (4/5 for Salmonella spp.; 20% (1/5 for Shigella spp.; and 20% (1/5 for Enterobacter spp. In turn, at the zoo, the frequency observed was 100% (3/3 for Salmonella spp. Due to the fact that these enterobacteria are potential sources of infections, there is a need to improve the health monitoring of these animals, through periodic investigations at CETAS’ facilities and zoos. Simultaneously, there is a need to monitor the health of professionals who make direct contact to these animals, through periodic examinations, as well as the adoption of appropriate biosecurity measures to prevent transmission of these pathogens.

  18. Explosive pollination mechanism in Periandra mediterranea (Vell. Taub. (Fabaceae in the Guaribas Biological Reserve, Paraíba, Brazil

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    Andressa Cavalcante Meireles

    2015-12-01

    Full Text Available Periandra mediterranea (Vell. Taub. has papilionaceous flowers with a complex pollination mechanism. This study examined pollination and reproduction in P. mediterranea from November 2009 to October 2011 at the Guaribas Biological Reserve, Paraíba, Brazil. The petals are modified in a keel that protects the stamens and stigma; two wings surround the keel, and a standard that serves as landing platform for floral visitors. Periandra mediterranea exhibits an explosive type pollination mechanism in which the bee species Xylocopa frontalis, Acanthopus excellens and Epicharis sp., land on the standard and, due to body weight, expose the reproductive organs in the wing-keel complex. As a result, the reproductive organs of the flower come into contact with the dorsal region of the bee body, depositing pollen (i.e., nototríbic pollination. Reproductive assays showed 20% fruiting in spontaneous auto-pollination, 33% in manual auto-pollination, 33% in manual cross-pollination, and 100% in the control group, with no reproductive success while in apomixis. These results demonstrate self-compatibility in this species, however it depends on pollinators to ensure reproductive success.

  19. Natural and anthropogenic emissions of N and P to the Parnaíba River Delta in NE Brazil

    Science.gov (United States)

    de Paula Filho, Francisco José; Marins, Rozane Valente; de Lacerda, Luiz Drude

    2015-12-01

    The Parnaiba River Delta is the largest open sea delta in the Americas, having a unique ecological importance for the conservation of wildlife and fisheries resources. However, little is known about the biogeochemistry of this ecosystem. This study estimates N and P emissions to the delta using emissions factors, calibrated with field samples and N and P concentrations in different compartments of the delta. The estimated loads totaled 14.517 t N year-1 and 8.748 t P year-1, indicating that anthropogenic N and P emissions outweigh natural emissions by approximately 5 and 10 times, respectively. The activities that contribute the most to this result are livestock farming, agriculture and the release of untreated domestic sewage. The flows of N and P from the estimated loads corresponded to 339 kg N km-2 year-1 and 204 kg P km-2 year-1, so the region can be classified as "meso-active" and "eury-active" with regard to the transfer of nutrients. These results are consistent with the coastal megabasin design (COSCATs) proposed by Meyback et al. (2006). This article presents a first approach to the calculation of an estimated annual emissions inventory of N and P for the lower basin of the Parnaíba River and its coastal region, representing an approach that has been satisfactorily used in assessing the sensitivity of estuarine systems in northeastern Brazil.

  20. A reevaluation of the late quaternary sedimentation in todos os Santos Bay (BA, Brazil

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    GUILHERME C. LESSA

    2000-12-01

    Full Text Available Todos os Santos Bay is a large ( 1000 km², structurally controlled tidal bay in northeast Brazil. Three main drainage basins debouch into the bay, providing a mean freshwater discharge of 200 m³/s (prior to 1985, or less than 1% of the spring tidal discharge through the bay mouth. Based on the result of several sedimentological studies performed in the 1970's, five surface sedimentary facies were identified inside the bay, namely i transgressive siliciclastic marine sand facies; ii transgressive bay sand-mud facies; iii a transgressive carbonate marine sand facies; iv regressive bay-mud facies, and v regressive fluvial sand facies. The spatial distribution of these facies would follow, somewhat closely, the hydrodynamic-energy distribution inside the bay. Seismic profiles along the bay bottom indicate the existence of several paleochannels, 5-10 m deep, blanketed at least by three different sedimentary units. The topmost sedimentary unit, 5-20 m thick, appears to be associated with the regressive bay-mud facies, and assuming that it was laid down within the last 5000 years, sedimentation rates for the central and northeastern part of the bay would average at 2,4 mm/y.

  1. Behaviour of zirconium in the weathering of granulites from Salvador-BA/Brazil

    International Nuclear Information System (INIS)

    The weathering related to mineralogy with chemical analysis of Zr in granulites and their weathered equivalents in Salvador - Brazil, is studied. The mineralogical and petrographical characteristics were correlated with analyses for K,Al and Zr. The fresh rocks are quartz-rich pyroxene granulites, the weathered samples were submitted to bromoform and electromagnetic separations to recovery nearly pure zircon from the fraction coarser than 50 micros. These zircons were classified by color, size and shape. Proportions between different colors of zircon were correlated with petrography of fresh granulites. Studies of zircons resistent to acid attack indicated, that the darker colors were due to iron oxide staining. Chemical analyses for Zr in fresh rocks presented values higher than the values corresponding to zircon observed in thin sections, sugesting the presence of Zr as a trace element in ferromagnesian silicates. In the weathered rocks, Zr values are much higher than those corresponding to recovered zircon. Comparisons of K2O, Al2O3 and Zr values in fresh and weathered rocks indicated a loss of K2O, and a gain of Zr by weathering. However, maximum losses of K2O do not coincide with maximum gains of Zr. (author)

  2. Shallow lacustrine system of the Permian Pedra de Fogo Formation, Western Gondwana, Parnaíba Basin, Brazil

    Science.gov (United States)

    Araújo, Raphael Neto; Nogueira, Afonso César Rodrigues; Bandeira, José; Angélica, Rômulo Simões

    2016-04-01

    The Permian Period of the Parnaíba Basin, northern Brazil, represented here by deposits from the Pedra de Fogo Formation, records important events that occurred in Western Gondwana near its boundary with the Mesozoic Era. The analysis of outcrop based facies from the Permian Pedra de Fogo Formation, which is 100 m thick, carried out along the eastern and western borders of the Parnaiba Basin, allowed the identification of eleven sedimentary facies, which were grouped into three distinct facies associations (FA), representative of a shallow lacustrine system associated with mudflats and ephemeral rivers. Bioturbation, desiccation cracks, silcretes and various siliceous concretions characterize the Pedra de Fogo deposits. The FA1 mudflat deposits occur predominantly at the base of the Pedra de Fogo Formation and consist of laminated claystone/mudstone, mudcrack-bearing sandstones/mudstones and sandstones exhibiting cross-lamination, massive and megaripple bedding. Popcorn-like silicified nodules and casts indicate evaporite deposits. Other common features are silica concretions, silicified tepees and silcretes. FA2 represents nearshore deposits and consists of fine-grained sandstones with evenly parallel lamination, climbing ripple cross-lamination, massive and megaripple bedding and mudstone/siltstone showing evenly parallel lamination. FA3 refers to wadi/inundite deposits, generally organized as fining-upward cycles of metric size, composed of conglomerates and medium-grained pebbly sandstones showing massive bedding and cross-stratification, as well as claystone/siltstone showing evenly parallel to undulate lamination. Scour-and-fill features are isolated in predominantly tabular deposits composed of mudstones interbedded with fine to medium-grained sandstones showing planar to slightly undulate lamination. Silicified plant remains previously classified as belonging to the Psaronius genus found in the uppermost levels of the Pedra de Fogo Formation, near the

  3. Data on biology and exploitation of West Atlantic sperm whales, Physeter macrocephalus (Cetacea: Physeteridae) off the coast of Paraíba, Brazil

    OpenAIRE

    Gustavo Toledo; Alfredo Langguth

    2009-01-01

    This study analyzes data on the biology of sperm whales, Physeter macrocephalus Linnaeus, 1758, obtained between 1965 and 1980 by the COPESBRA at the Costinha Whaling Station, Paraíba, Brazil. The data come from the log books of the whaling ships and from the spreadsheets containing biological information filled out by employees of the SUDEPE at the flensing plan of the whaling station. The catches occurred from June to December, in an area delimited by 06º22'-07º52'S and 33º26'-34º58'W. A to...

  4. Cynolebias parnaibensis, a new seasonal killifish from the Caatinga, Parnaíba River basin, northeastern Brazil, with notes on sound producing courtship behavior (Cyprinodontiformes: Rivulidae)

    OpenAIRE

    Wilson J. E. M. Costa; Telton P. A Ramos; Luisa C Alexandre; Robson T. C. Ramos

    2010-01-01

    Cynolebias parnaibensis from the Canindé River drainage, Parnaíba River basin, northeastern Brazil, is described. It is considered to be a member of a clade endemic to the Caatinga. The clade is diagnosed, e. g., by a series of structural modifications of the pharyngeal jaw apparatus, which is related to the sound production exhibited by males during courtship behavior. The courtship sound of C. parnaibensis consists of a single pulse named as thump (duration 0.031-0.133s; interthump interval...

  5. Converting the Caetité Mill Process to Enhance Uranium Recovery and Expand Production

    International Nuclear Information System (INIS)

    The Caetité uranium mill was commissioned in 2000 to produce about 340 t U per year from an uranium ore averaging 0.29% U3O8. This production is sufficient to supply the two operating nuclear power plants in the country. As the Brazilian government has recently confirmed its plan to start building another ones from 2009, the uranium production will have to expand its capacity in the next two years. This paper describes the changes in the milling process that are being evaluated in order to not only increase the production but also the uranium recovery, to fulfil the increasing local demand. The heap leaching process will be changed to conventional tank agitated leaching of ground ore slurry in sulphuric acid medium. Batch and pilot plant essays have shown that the uranium recovery can increase from the 77% historical average to about 93%. As the use of sodium chloride as the stripping agent has presented detrimental effects in the extraction and stripping process, two alternatives are being evaluated for the uranium recovery from the PLS: (a) uranium peroxide precipitation at controlled pH from a PLS that was firstly neutralized and filtered. Batch essays have shown good results with a final calcined precipitate averaging 99% U3O8. Conversely the results obtained at the first pilot plant essay has shown that the precipitation conditions of the continuous process calls for further evaluation. The pilot plant is being improved and another essay will be carried out. (b) uranium extraction with a tertiary amine followed by stripping with concentrated sulphuric acid solution. Efforts are being made to recover the excess sulphuric acid from the pregnant stripping solution to enhance the economic viability of the process and to avoid the formation of a large quantity of gypsum in the pre-neutralization step before the uranium peroxide precipitation. (author)

  6. Study of uranium leaching from industrial residues of Industrias Nucleares do Brazil S.A. (INB), Caetite, Bahia, Brazil

    International Nuclear Information System (INIS)

    The uraniferous district of Lagoa Real, located in the south-central region of the state of Bahia, has reserves estimated at 100,000 tons of uranium, which is enough to supply Angra I, II and III for 100 more years. The process adopted for the beneficiation of the uranium ore from Lagoa Real is heap leaching, a static process in which the ore is crushed, disposed in heaps and irrigated with a sulfuric acid solution to remove the uranium. This technique has a relatively low cost of implementation, although the yield of uranium recovery is low, with an uranium content in the leached residue of 700 μg/g U3O8 for ores with an initial content of 2,700 μg/g U3O8. With the deepening of the mine pit, an increase in the carbonate content in the ore was noted, which required a higher acid consumption in the leaching. In order to reduce the concentration of carbonates, a study of the ore concentration by flotation column was accomplished. The flotation reject had high carbonate content, with a uranium content of about 2,300 μg/g U3O8 for flotation in one column and 1,100 μg/g U3O8 for flotation in two columns. This paper presents the study of the leaching process for the recovery of the uranium present in the residue of the heap leaching and in the carbonated residue from the flotation of the anomaly 13 ore. The results indicate the feasibility of treating the waste of the heap leaching through dynamic leaching. The study of the uranium leaching from the flotation residue through acid leaching technique indicated a recovery of 96% of uranium, however with a high consumption of acid, around 450 kg/t, showing that for this case, the most suitable technique for the process is alkaline leaching. (author)

  7. Paleoenvironmental implications of early diagenetic siderites of the Paraíba do Sul Deltaic Complex, eastern Brazil

    Science.gov (United States)

    Rodrigues, Amanda Goulart; De Ros, Luiz Fernando; Neumann, Reiner; Borghi, Leonardo

    2015-06-01

    Abundant early diagenetic siderites occur as spherulites and rhombohedral microcrystalline and macrocrystalline crystals in the cores of the 2-MU-1-RJ well, drilled in the Paraíba do Sul Deltaic Complex, Rio de Janeiro (Brazil). The host sediments of the siderites are siliciclastic, hybrid, and carbonate deposits. Intense pedogenetic processes affected the siliciclastic sediments immediately after deposition, comprising clay illuviation, plants bioturbation, feldspar dissolution, and iron oxide/hydroxide precipitation. Siderite and pyrite are the main diagenetic constituents. The other diagenetic products are kaolinite, smectite, argillaceous and carbonate pseudomatrix, quartz overgrowths, diagenetic titanium minerals, jarosite, and iron oxides/hydroxides. Early diagenetic siderites were separated into four groups based on their elemental and stable isotopic composition, as well as on their paragenetic relationships with the other constituents and with the host sediments. Spherulitic to macrocrystalline siderites from group 1 are almost pure (average: 94.7 mol% FeCO3; 1.2 mol% MgCO3; 2.3 mol% CaCO3; 1.8 mol% MnCO3) and precipitated from meteoric porewaters in continental siliciclastic rocks under suboxic conditions (δ18Ovpdb values range in - 10.28 to - 5.57‰ and the δ13Cvpdb values in - 12.68 to - 4.33‰). Microcrystalline rhombohedral siderites from group 2 have zonation due to substantial Ca and Mg substitution (core average: 78.5 mol% FeCO3; 4.2 mol% MgCO3; 15.7 mol% CaCO3; 1.6 mol% MnCO3; edge average: 74.0 mol% FeCO3; 9.2 mol% MgCO3; 15.6 mol% CaCO3; 1.1 mol% MnCO3), and δ13Cvpdb and δ18Ovpdb values of + 0.17‰ and - 1.96‰, precipitated from marine porewaters in packstones/wackestones under methanogenic conditions. The group 3 is represented by irregular spherulitic siderites with moderate Ca and Mg substitutions (average: 80.2 mol% FeCO3; 7.9 mol% MgCO3; 11.3 mol% CaCO3; 0.6 mol% MnCO3), with δ18Ovpdb values ranging from - 5.96 to - 7.61‰ and

  8. The invasion of five alien species in the Delta do Parnaíba Environmental Protection Area, Northeastern Brazil

    Directory of Open Access Journals (Sweden)

    Daniel Loebmann

    2010-09-01

    Full Text Available Marine biological invasions have been regarded as one of the major causes of native biodiversity loss, with shipping and aquaculture being the leading contributors for the introductions of alien species in aquatic ecosystems. In the present study, five aquatic alien species (one mollusk, three crustaceans and one fish species were detected during dives, shore searches and from the fisheries on the coast of the Delta do Parnaíba Environmental Protection Area, in the States of Piauí and Maranhão, Northeastern Brazil. The species were the bicolor purse-oyster Isognomon bicolor, the whiteleg shrimp Litopenaeus vannamei, the giant river prawn Macrobrachium rosenbergii, the Indo-Pacific swimming crab Charybdis hellerii and, the muzzled blenny Omobranchus punctatus. Ballast water (I. bicolor, C. hellerii, and O. punctatus and aquaculture activities (L. vannamei and M. rosenbergii in adjacent areas are the most likely vectors of introduction. All exotic species found have potential impact risks to the environment because they are able to compete against native species for resources (food and habitat. Isognomon bicolor share the same habitat and food items with the native bivalve species of mussels and barnacles. Litopenaeus vannamei share the same habitat and food items with the native penaeids such as the pinkspot shrimp Farfantepenaeus brasiliensis, the Southern brown shrimp Farfantepenaeus subtilis, and the Southern white shrimp Litopenaeus schmitti, and in the past few years L. vannamei was responsible for a viral epidemics in the cultivation tanks that could be transmitted to native penaeid shrimps. Charybdis hellerii is also able to cause impacts on the local fisheries as the species can decrease the populations of native portunid crabs which are commercialized in the studied region. Macrobrachium rosenbergii may be sharing natural resources with the Amazon River prawn Macrobrachium amazonicum. Omobranchus punctatus shares habit with the native

  9. The invasion of five alien species in the Delta do Parnaíba Environmental Protection Area, Northeastern Brazil.

    Science.gov (United States)

    Loebmann, Daniel; Mai, Ana Cecília G; Lee, James T

    2010-09-01

    Marine biological invasions have been regarded as one of the major causes of native biodiversity loss, with shipping and aquaculture being the leading contributors for the introductions of alien species in aquatic ecosystems. In the present study, five aquatic alien species (one mollusk, three crustaceans and one fish species) were detected during dives, shore searches and from the fisheries on the coast of the Delta do Parnaíba Environmental Protection Area, in the States of Piauí and Maranhão, Northeastern Brazil. The species were the bicolor purse-oyster Isognomon bicolor, the whiteleg shrimp Litopenaeus vannamei, the giant river prawn Macrobrachium rosenbergii, the Indo-Pacific swimming crab Charybdis hellerii and, the muzzled blenny Omobranchus punctatus. Ballast water (I. bicolor, C. hellerii, and O. punctatus) and aquaculture activities (L. vannamei and M. rosenbergii) in adjacent areas are the most likely vectors of introduction. All exotic species found have potential impact risks to the environment because they are able to compete against native species for resources (food and habitat). Isognomon bicolor share the same habitat and food items with the native bivalve species of mussels and barnacles. Litopenaeus vannamei share the same habitat and food items with the native penaeids such as the pinkspot shrimp Farfantepenaeus brasiliensis, the Southern brown shrimp Farfantepenaeus subtilis, and the Southern white shrimp Litopenaeus schmitti, and in the past few years L. vannamei was responsible for a viral epidemics in the cultivation tanks that could be transmitted to native penaeid shrimps. Charybdis hellerii is also able to cause impacts on the local fisheries as the species can decrease the populations of native portunid crabs which are commercialized in the studied region. Macrobrachium rosenbergii may be sharing natural resources with the Amazon River prawn Macrobrachium amazonicum. Omobranchus punctatus shares habit with the native redlip blenny

  10. The use of zootherapeutics in folk veterinary medicine in the district of Cubati, Paraíba State, Brazil

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    da S Mourão José

    2007-09-01

    Full Text Available Abstract Background The present work addresses the use of zootherapy in folk veterinary medicine (ethnoveterinary by the residents of the municipal district of Cubati, microregion of Seridó, Paraíba State, Brazil. It sought to identify the principal animals used as medicinal sources for zootherapeutics and to contribute to the preservation and sustainability of this traditional knowledge. Methods Field research was undertaken on a weekly or biweekly basis during the period November, 2006, to January, 2007. Free, semi-structured, and open interviews were made with local residents of the municipal district of Cubati (in both urban and rural settings as well as with venders in public markets. A total of 25 individuals of both sexes were interviewed (with ages varying from 26 to 78 years although only 16 were finally chosen as informants as these people demonstrated the greatest degree of knowledge concerning zootherapeutics. Graphs and percentages were generated using Microsoft© Excel 2007 software, and the species were identified by photographic registration and subsequent bibliographical surveys. Results Mammals constitute the main medicinal zootherapeutic source for folk veterinary medicines in the studied area, both in terms of the total number of species used and the frequency of their citation. Sheep (Ovis aries, pigs (Sus scrofa, cattle (Bos taurus, and foxes (Cerdocyon thous were mentioned by 62.5, 43.75, 37.5, and 31.25% of the informants, respectively, as being used in folk veterinary medicine. Additionally, chameleons (Iguana iguana, chickens (Gallus domesticus, and rattlesnakes (Crotalus durissus were mentioned by 75, 43.75, and 31.25% of the informants, respectively. Relatively simple animal illnesses, such as furuncles, or injuries resulting from embedded thorns or skin eruptions are responsible for the largest number of zootherapeutic treatment, while, diseases of greater complexity, such as rabies and brucellosis, were not even

  11. Ocorrência de Lymnaea columella (Gastropoda: Lymnaeidae), hospedeiro intermediário da Fasciola hepatica, para o Estado da Paraíba, Brasil Occurrence of Lymnaea columella (Gastropoda: Lymnaeidae), first intermediate host of Fasciola hepatica, for the state of Paraíba, Brazil

    OpenAIRE

    Francisco José Pegado Abílio; Takako Watanabe

    1998-01-01

    Foi registrada a ocorrência de Lymnaea columella (Gastropoda: Lymnaeidae), primeiro hospedeiro intermediário da Fasciola hepatica, para o Estado da Paraíba, Brasil, associado a macrófitas aquáticas.The occurrence of Lymnaea Columella (Gastropoda: Lymnaeidae), first intermediate host of Fasciola hepatica, is recorded for the first time in the state of Paraíba, Brazil, associeted with aquatic macrophytes.

  12. An integrative approach to characterize hydrological processes and water quality in a semi-arid watershed in Northeastern Brazil

    Science.gov (United States)

    Franklin, M. R.; Fernandes, N.; Veiga, L. H. S.; Melo, L. R.; Santos, A. C. S.; Araujo, V. P.

    2014-12-01

    Arid and semi-arid regions face serious challenges in the management of scarce water resources. This situation tends to become worse with the increasing population growth rates and consequently increasing water demand. Groundwater is the most important water resource in these areas and, therefore, the sustainability of its use depends on the effectiveness in which it is managed, both in terms of quantity and quality. The Caetité Experimental Basin (CEB), located in a semi-arid region of Northeastern Brazil, faces not only the challenges associated with water scarcity, but also changes in landscape and potential contamination processes due to mining activity. The only active uranium production center in Brazil (URA) is located in this watershed and the sustainability of mining and milling operations as well as the survival of the local community are highly dependent on the availability of groundwater resources. Hydrogeological studies in this area are scarce, and the potential contamination and overexploitation of groundwater can not be ruled out. Therefore, a national project was launched in order to improve the understanding and quantification of the interaction between the hydrogeological system and human health. The methodological approach involved hydrological and geochemical monitoring and characterization of the CEB, use of isotopic techniques, groundwater modeling, water quality diagnosis and human health risk assessment due to water ingestion. The results suggested that the groundwater in the CEB are not totally connected, with evidence of a mixture of recent and old waters. The Na-Ca-HCO3-Cl is the dominant water type (50%) followed by Ca-Na-HCO3-Cl water type (17%). The relevant non-radioactive contaminants are Mn, F, NO3 and Ba, mostly from natural origin, with the exception of NO3 that could be associated with the livestock activities. The estimated effective doses due to groundwater ingestion containing radionuclides are below the recommended

  13. Performance of the irrigameter in management of irrigation in the Jaíba Irrigated Perimeter, MG, Brazil

    OpenAIRE

    Luan Brioschi Giovanelli; Samuel Petraccone Caixeta; Júlio César Machado Baptestini; André Leonardo Tavares de Paula; Rubens Alves de Oliveira; Ednaldo Miranda de Oliveira

    2011-01-01

    The objective of this study was to determine the coefficient of irrigameter device (KI) and to assess its performance in the irrigation of sunflower. The experiment was conducted in the Jaíba Irrigated Perimeter, Jaíba, MG, located at 15° 36' S and 43° 42' W, with an altitude of 460 m. For the evaluation of the performance of the irrigameter, the water level in the evaporimeter was kept at 1, 2, 3, 4, 5 and 6 cm high, and the evapotranspiration estimated by the irrigameter was compared to the...

  14. Mercury contents in aquatic macrophytes from two reservoirs in the Paraíba do Sul: Guandú river system, SE Brazil.

    Science.gov (United States)

    Molisani, M M; Rocha, R; Machado, W; Barreto, R C; Lacerda, L D

    2006-02-01

    This paper reports on a study to determine the Hg content in the five most abundant aquatic macrophyte species (Elodea densa, Sagittaria montevidensis, Salvinia auriculata, Pistia stratiotes and Eichhornia crassipes) in two artificial reservoirs flooded by water diverted from the Paraíba do Sul river, SE Brazil. The potential of these species for Hg accumulation and their role in Hg transport along the river system due to macrophyte management were evaluated. Mercury concentrations were higher in free-floating than in rooted species. Roots were also richer in Hg than were leaves. Dry weight Hg concentrations in leaves and roots from all species varied from 46-246 ng.g(-1) to 37-314 ng.g(-1), respectively. These values are higher than those reported for uncontaminated lakes in Brazil and in other tropical areas and similar to those reported for moderately contaminated sites. Mercury concentrations can be attributed to fluvial transport from the heavily industrialized Paraíba do Sul river basin. Intensive sampling of Pistia stratiotes from two sites in the Vigário reservoir was performed to evaluate the capacity of Hg incorporation in short periods of time. The results showed a significant negative correlation between Hg content and size class of individual plants, demonstrating the importance of juveniles, fast growing plants in absorbing Hg. The foremost impact related to Hg contents in the studied area concerns the periodic removal of macrophytes for reservoir management, followed by disposal in nearby areas. This results in the mobilization of 0.52 to 1.3 Kg of Hg per year, a significant fraction of the Hg burden present in reservoir waters. Disposal of such material may result in Hg leaching to river systems, affecting the Hg transfer throughout the basin. PMID:16680311

  15. Distribution of the Orange-winged Parrot Amazona amazonica (Linnaeus, 1766 (Aves, Psittacidae in the coastal region of the State of Paraíba, Brazil

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    Daniela de Carvalho Melo

    2014-08-01

    Full Text Available Fifty-six villages along the coast of the State of Paraíba, Brazil, were visited to determine and map the occurrence of Amazona amazonica (Linnaeus, 1766. Search was conducted with binoculars and the residents of each locality were interviewed using a questionnaire to obtain information about the occurrence and species´s biological data. Reports of recent and old occurrences, absence and feeding areas were registered. The food items mentioned were fruits, such as cashew, cashew nuts, palm oil, and agricultural products, such as corn. The reproductive period occurred between November and December. Breeding sites were mangrove areas and coconut trees, with nests being made in tree hollows. Questionnaires helped to elaborate a distribution map of the species, in which the actual distribution was based on visual records, whilst the potential distribution of the species was based on the questionnaire answers. Furthermore, they provided an overview of the biology of the species in agreement with that reported in the literature. Current data may be used in future studies on the conservation of the species in the State of Paraíba.

  16. Demodicose bovina no Estado da Paraíba Bovine demodicosis in the state of Paraíba, northeastern Brazil

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    João Luiz H. Faccini

    2004-09-01

    Full Text Available Casos de demodicose bovina foram observados em um rebanho da raça Sindhi no período de dezembro 1989 a janeiro 1992. Ambas as formas, localizada e generalizada, foram diagnosticadas. Este é o primeiro relato da forma generalizada no Brasil. Nos dois primeiros anos, a demodicose foi diagnosticada somente em animais Cases of bovine demodicosis caused by Demodex bovis were reported in a Sindhi herd from December 1989 to January 1992. Both localized and generalized forms were diagnosed. This is the first report of the generalized form in Brazil. In the first two years, demodicosis was diagnosed only in cattle 2 years old, respectively. Clinical signs varied from a few small nodules to a thickened skin with soft large nodules in the localized and generalized forms, respectively. Main microscopic features of the nodules in the generalized form consisted of acanthosis with hyperqueratosis, chronic sebaceous adenitis, subcutaneous muscular necrosis, focal cellular degeneration of the epidermis basal layer and presence of large number of mites inside the lumen of dilated hair follicles. In addition, a chronic perifoliculitis was observed, characterized by lymphoplasmocytic infiltrate which also contained macrophages and neutrophils. It is suggested that poor nutrition and stress due to prolonged drought probably contributed to the increase of susceptibility of the herd to mite infestation.

  17. Prevalência de defeitos de fechamento de tubo neural no Vale do Paraíba, São Paulo Prevalence of neural tube defects in Vale do Paraíba, São Paulo, Brazil

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    Luiz Fernando C. Nascimento

    2008-12-01

    Full Text Available OBJETIVO: Estimar a prevalência de defeitos de fechamento do tubo neural no Vale do Paraíba paulista e identificar possíveis fatores maternos e neonatais associados a tais defeitos. MÉTODOS: Realizou-se um estudo transversal com dados secundários obtidos na Secretaria Estadual da Saúde referentes aos nascimentos ocorridos em 2004 no Vale do Paraíba paulista, que compreende 35 municípios e conta com população de 2 milhões de habitantes. Anencefalia, encefalocele e espina bífida (mielocele e mielomeningocele foram considerados defeitos de fechamento do tubo neural. As variáveis maternas foram: idade, escolaridade, cor da pele, número de consultas no pré-natal, número de filhos vivos e relato de óbito fetal prévio. As variáveis relativas ao recém-nascido foram: peso, idade gestacional e escore de Apgar. Realizou-se comparação das médias por meio do teste t de Student e obtiveram-se os valores das razões de chance com intervalos de confiança de 95%. RESULTADOS: Foram analisados 33.653 nascidos vivos. Trinta e oito recém-nascidos com o defeito foram encontrados (1,13/1.000 nascidos vivos, sendo 23 casos de espina bífida. Houve associação com baixo peso ao nascimento, prematuridade e menores escores de Apgar de cinco minutos. CONCLUSÕES: A prevalência desta anomalia foi inferior à de outros estudos nacionais e sua presença esteve associada ao baixo peso, à prematuridade e à baixa vitalidade ao nascer.OBJECTIVE: To estimate the prevalence of neural tube defects in Vale do Paraíba, São Paulo, Brazil, and to identify possible maternal and neonatal variables associated with these defects. METHODS: This cross-sectional study used secondary records of the Health Department of São Paulo State related live births during 2004 in Vale do Paraíba, São Paulo, Brazil. This region has 35 cities and 2 million inhabitants. Anencephaly, encephalocele and spina bifida (myelocele and myelomeningocele were considered as neural tube

  18. A prática de amamentar entre mulheres que exercem trabalho remunerado na Paraíba, Brasil: um estudo transversal Breastfeeding practices among paid working mothers in Paraíba State, Brazil: a cross-sectional study

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    Rodrigo Pinheiro de Toledo Vianna

    2007-10-01

    Full Text Available Estar no mercado de trabalho não deve impedir a mulher de amamentar. A Organização Mundial de Saúde preconiza o aleitamento materno exclusivo até seis meses de vida. No Brasil as leis propiciam à mulher trabalhadora quatro meses de licença maternidade, mas nem sempre ela recebe este benefício. Assim, como praticar amamentação exclusiva? Este artigo objetiva descrever as taxas de aleitamento materno e se o trabalho remunerado interfere na amamentação de mães da Paraíba. Trata-se de estudo transversal em 70 de 223 municípios que aceitaram participar da pesquisa na campanha de vacinação em 2002. Em 11.076 crianças menores de um ano, a prevalência de amamentação exclusiva foi de 22,4% de 0-4 meses e foi significativamente maior entre as mães que trabalhavam fora e que tiveram licença maternidade. Entre estas, foi também menor a prevalência de amamentação total e predominante. Na zona rural o trabalho fora de casa esteve associado com a redução do aleitamento materno exclusivo. A prática do amamentar na Paraíba está muito aquém das recomendações e o retorno precoce da mãe ao trabalho agrava esta situação.Paid work should not be an obstacle to women's breastfeeding. The World Health Organization (WHO recommends exclusive breastfeeding for 6 months. In Brazil, women are legally entitled to 4 months of maternity leave, but in practice few women enjoy such benefits. How is it possible to practice exclusive breastfeeding for 6 months? We analyzed both the breastfeeding rates and whether paid jobs interfere with breastfeeding in Paraíba State, Northeast Brazil. We conducted a cross-sectional study in 70 of 223 municipalities (counties during the annual immunization campaign in 2002. Among 11,076 infants (< 12 months of age, the exclusive breastfeeding rate at 0-4 months was 22.4% and was significantly higher among working women receiving maternity leave as compared to those who did not. The prevalence of total and

  19. Estudo do comportamento reológico das argilas bentoníticas de Cubati, Paraíba, Brasil Rheological behavior study of bentonite clays from Cubati, Paraíba, Brazil

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    R. R. Menezes

    2009-12-01

    Full Text Available O estado da Paraíba possui jazidas de bentonitas utilizadas comercialmente para uma vasta gama de setores tecnológicos. No entanto, esses jazimentos estão se exaurindo, após dezenas de anos de exploração. Assim, este trabalho tem por objetivo dar prosseguimento à caracterização de argilas bentoníticas de Cubati, PB, estudando o comportamento reológico das dispersões argila-água de modo avaliar seu desempenho para fluidos de perfuração de poços de petróleo base água. As amostras estudadas foram secas a 60 ºC e determinou-se sua capacidade de troca de cátions. As argilas foram transformadas em sódica por tratamento com Na2CO3 e em seguida realizou-se o estudo do comportamento reológico das dispersões. As viscosidades, aparente e plástica, o volume de filtrado, os parâmetros reológicos do fluido e a sua força gel foram determinados. Os resultados evidenciaram que cada amostra apresenta um teor ótimo de carbonato de sódio e que as dispersões argila-água possuem um comportamento pseudo-plástico e tixotrópico. Duas amostras apresentam potencial para utilização como agentes viscosificantes para fluidos de perfuração.The bentonites of the state of Paraíba, Brazil, are commercially used in numerous technological sectors, particularly in oil drilling muds. However, these bentonite deposits are becoming exhausted due to several years of exploitation. Thus, the aim of this work was continue the characterization of the bentonites from Cubati, Paraíba, studying the rheological behavior of water-clay suspensions, evaluating their viability to be used in oil drilling muds. The samples were dried at 60 ºC and, their cation exchange capacity was determined. The natural bentonite clays were transformed in sodium bentonite by addition of concentrated Na2CO3 solution, then the suspensions rheological study was performed. The apparent and plastic viscosities, water loss, rheological parameters and the gel force were determined

  20. Meliponiculture in Quilombola communities of Ipiranga and Gurugi, Paraíba state, Brazil: an ethnoecological approach

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    de Carvalho, Roberta Monique Amâncio; Martins, Celso Feitosa; Mourão, José da Silva

    2014-01-01

    Background The Quilombola communities of Ipiranga and Gurugi, located in Atlantic Rainforest in Southern of Paraíba state, have stories that are interwoven throughout time. The practice of meliponicultura has been carried out for generations in these social groups and provides an elaborate ecological knowledge based on native stingless bees, the melliferous flora and the management techniques used. The traditional knowledge that Quilombola have of stingless bees is of utmost importance for th...

  1. Ethnotaxonomy of mastofauna as practised by hunters of the municipality of Paulista, state of Paraíba-Brazil

    OpenAIRE

    Araujo Helder FP; Mourão José S; Almeida Fabiana S

    2006-01-01

    Abstract It was aimed in the present work to report aspects related to identification, naming and categorization of the mastofauna species of the caatinga biome, according to hunters' knowledge of Northeast Brazil. The methods of free and semi-structured interviews and guided tours were applied here. The data obtained were analyzed under the emic/etic point of view by comparing the local people's knowledge to those reported in the literature. The inland hunters use some classification models ...

  2. Herd-level prevalence and associated risk factors for Mycobacterium avium subsp. paratuberculosis in cattle in the State of Paraíba, Northeastern Brazil.

    Science.gov (United States)

    Vilar, Ana L T; Santos, Carolina S A B; Pimenta, Carla L R M; Freitas, Theonys D; Brasil, Arthur W L; Clementino, Inácio J; Alves, Clebert J; Bezerra, Camila S; Riet-Correa, Franklin; Oliveira, Taynara S; Azevedo, Sérgio S

    2015-09-01

    A cross-sectional study based on a planned sampling was carried out to determine herd-level and animal-level prevalences, and to identify risk factors associated with herd-level prevalence for bovine paratuberculosis in the State of Paraíba, Northeastern Brazil. The state was divided into three sampling groups: sampling stratum 1 (mesoregion of Sertão), sampling stratum 2 (mesoregion of Borborema), and sampling stratum 3 (mesoregions of Zona da Mata and Agreste). For each sampling stratum, herd-level and animal-level prevalences were estimated by a two-stage sampling survey. In the first stage, a pre-established number of herds (primary sampling units) were randomly selected; in the second stage, a pre-established number of cows aged ≥24 months were randomly selected (secondary sampling units). Ten animals were sampled in herds with up to 99 cows aged over 24 months; 15 animals were sampled in herds with 100 or more cows aged over 24 months; and all animals were sampled in those with up to 10 cows aged over 24 months. In total, 2504 animals were sampled from 480 herds. Enzyme-linked immunosorbant assay (ELISA) test kits were used for Mycobacterium avium subsp. paratuberculosis (MAP) antibody detection. A herd was deemed positive for the presence of MAP if it included at least one positive animal in herds of up to 24 females, and two positive animals in herds with more than 24 females. The herd-level prevalence in the State of Paraíba was 34.5% (95% CI=30.2-39.1%), 26.6% (95% CI=20.2-34.2%) in the region of Borborema, 30.5% (95% CI=23.9-38.0%) in Agreste/Mata, and 41.4% (95% CI=34.0-49.1%) in Sertão. The animal-level prevalence was 10.7% (95% CI=7.3-15.4%) in the State of Paraíba, 7.9% (95% CI=5.2-11.7%) in the region of Borborema, 9.4% (95% CI=7.3-12.1%) in Sertão, and 13.9% (95% CI=6.2--28.3%) in Agreste/Mata. The frequency of seropositive animals per herd ranged from 6.7% to 100% (median of 20%). The risk factors identified were as follows: Sertão region

  3. Hipertensão arterial na população adulta de Salvador (BA - Brasil Arterial hypertension in the adult population of Salvador (BA - Brazil

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    Ínes Lessa

    2006-12-01

    Full Text Available OBJETIVO: Estimar a prevalência (Pr da hipertensão arterial (HA e da sua associação com outros fatores de risco cardiovascular em população fortemente miscigenada. MÉTODOS: Estudo de corte transversal, realizado em amostra populacional de 1.439 adultos e > 20 anos, em Salvador-Brasil. Todos responderam a questionário em domicilio e tiveram medidos: pressão arterial, peso, altura, circunferência da cintura (CC, glicemia e lípidas séricas. O critério para HA foi a média da PAS > 140 e/ou PAD > 90mmHg. Foram estimadas Pr da HA com IC a 95%. As associações foram medidas pelo OR ajustado (ORaj, por análise de regressão. RESULTADOS: A Pr total foi da HA foi 29,9%: 27,4% IC (23,9-31,2 em homens e 31,7%, IC(28,5-34,9 em mulheres. Em negros a Pr foi 31,6% para homens e 41,1% para mulheres. Em brancos foi 25,8% nos homens e 21,1% nas mulheres. A HA apresentou associação significante com idades > 40 anos, sobrepeso/obesidade [ORaj = 2,37(1,57-3,60] para homens e 1,62(1,02-2,58 para mulheres. Nos homens a HA associou-se à escolaridade elevada e nas mulheres com a cor da pele parda e negra, com obesidade abdominal, ORaj = 2,05 IC(1,31-3,21, diabetes ORaj = 2,16 IC(1,19-3,93 e com a menopausa. CONCLUSÃO: A HA predominou em negros de ambos os sexos, e em mulheres. Excetuando-se o sobrepeso/obesidade, as variáveis que se mantiveram independentemente associadas à HA diferiram entre os sexos. Os resultados sugerem aprofundamento do estudo da HA em negros e necessidade de intervenções educacionais contínuas e de início precoce.OBJECTIVE: To estimate the prevalence of hypertension (H and its association with other cardiovascular risk factors in a highly multiracial population. METHODS: A cross-sectional study carried out in Salvador, Brazil, in a population sample of 1439 adults > 20 years of age. All participants completed a questionnaire at home and had the following measurements taken: blood pressure, body weight, height, waist

  4. Geophysical evidence of pre-sag rifting and post-rifting fault reactivation in the Parnaíba basin, Brazil

    Science.gov (United States)

    Lopes de Castro, David; Hilário Bezerra, Francisco; Adolfo Fuck, Reinhardt; Vidotti, Roberta Mary

    2016-04-01

    This study investigated the rifting mechanism that preceded the prolonged subsidence of the Paleozoic Parnaíba basin in Brazil and shed light on the tectonic evolution of this large cratonic basin in the South American platform. From the analysis of aeromagnetic, aerogravity, seismic reflection and borehole data, we concluded the following: (1) large pseudo-gravity and gravity lows mimic graben structures but are associated with linear supracrustal strips in the basement. (2) Seismic data indicate that 120-200 km wide and up to 300 km long rift zones occur in other parts of the basins. These rift zones mark the early stage of the 3.5 km thick sag basin. (3) The rifting phase occurred in the early Paleozoic and had a subsidence rate of 47 m Myr-1. (4) This rifting phase was followed by a long period of sag basin subsidence at a rate of 9.5 m Myr-1 between the Silurian and the late Cretaceous, during which rift faults propagated and influenced deposition. These data interpretations support the following succession of events: (1) after the Brasiliano orogeny (740-580 Ma), brittle reactivation of ductile basement shear zones led to normal and dextral oblique-slip faulting concentrated along the Transbrasiliano Lineament, a continental-scale shear zone that marks the boundary between basement crustal blocks. (2) The post-orogenic tectonic brittle reactivation of the ductile basement shear zones led to normal faulting associated with dextral oblique-slip crustal extension. In the west, pure-shear extension induced the formation of rift zones that crosscut metamorphic foliations and shear zones within the Parnaíba block. (3) The rift faults experienced multiple reactivation phases. (4) Similar processes may have occurred in coeval basins in the Laurentia and Central African blocks of Gondwana.

  5. Structural and elemental analysis of bottom sediments from the Paraíba do Sul River (SE, Brazil) by analytical microscopy

    Science.gov (United States)

    Miguens, Flávio Costa; Oliveira, Martha Lima de; Ferreira, Amanda de Oliveira; Barbosa, Laís Rodrigues; Melo, Edésio José Tenório de; Carvalho, Carlos Eduardo Veiga de

    2016-03-01

    The Paraíba do Sul River (PSR) is a medium-sized river that flows through the Minas Gerais, São Paulo and Rio de Janeiro Brazilian states the three most developed states in Brazil. Industrial parks and cities have historically been established along the river basin. The waters of PSR are used in agriculture, industry and human consumption of over 20 million people, including Rio de Janeiro City. Furthermore, the river receives effluent from these activities: agricultural runoff, industrial waste, and domestic sewage. Therefore, PSR has been considered polluted, particularly by heavy metals. In order to assess heavy metals in bottom sediments grains of the PSR, to infer their elemental composition, and to characterize individual sediment grains morphology, a non-destructive methodology - X-ray microanalyses (Scanning Electron Microscope coupled to Energy Dispersive X-rays Spectrometer/SEM/EDS) - was used. Heavy metals - Cr, Mn, Ni, Cu, Zn, Zr, Ag, Ba, Au, La, Ce, Nd, Th, Y, Sn, Os and Pb - were detected by SEM/EDS in bottom sediment grains from PSR, predominantly in grains with equivalent diameter ≤10 μm. They occurred as silicates, oxides (hydro-oxides), sulfides, carbonates, sulfates, phosphates and chlorides. All detected heavy metals occurred as, at least, one kind of soluble metal compound, mainly due to ionic exchange from silicates, with the exception of Ag, which was chloride, sulfate or metallic as Os, Au and Pb. These results corroborate heavy metal PSR pollution and food chain risk, considering that near-shore continental shelf is free of heavy metals contamination. Our results also give support to the hypothesis that the PSR estuary can act as a trap for these elements.

  6. Performance of the irrigameter in management of irrigation in the Jaíba Irrigated Perimeter, MG, Brazil

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    Luan Brioschi Giovanelli

    2011-04-01

    Full Text Available The objective of this study was to determine the coefficient of irrigameter device (KI and to assess its performance in the irrigation of sunflower. The experiment was conducted in the Jaíba Irrigated Perimeter, Jaíba, MG, located at 15° 36' S and 43° 42' W, with an altitude of 460 m. For the evaluation of the performance of the irrigameter, the water level in the evaporimeter was kept at 1, 2, 3, 4, 5 and 6 cm high, and the evapotranspiration estimated by the irrigameter was compared to the reference evapotranspiration, calculated by the standard method Penman-Monteith FAO 56 (Allen et al., 1998. It was concluded that the values of KI obtained were 0.42, 0.69, 0.85, 1.07, 1.34 and 1.61 for the water levels in the evaporimeter corresponding to 1, 2, 3, 4, 5 and 6 cm, respectively. There was no significant difference between the yield of sunflower crop irrigated during day or night time; higher average values then reported by the literature were found. The irrigameter device was found to be satisfactory for irrigation control. To estimate the reference evapotranspiration in similar regions with similar climatic conditions, it is recommended to use the unit with evaporimeter adjusted to the level 3.7 cm.

  7. Occurrence of new species of mealybug on cotton fields in the states of Bahia and Paraíba, Brazil

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    Carlos Alberto Domingues da Silva

    2012-01-01

    Full Text Available The cotton mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae has been reported occurring in several countries causing severe losses in economically important crops, including cotton. Based on information reported by farmers in the regions of the Southwest and Middle São Francisco, Bahia and also in the regions of the Agreste and Semi-arid of the Paraiba State, high infestations of cotton mealybugs have occurred in these regions during the cotton season of 2007 and 2008. The cotton mealybug was identified as P. solenopsis and this represents the first record of this insect attacking cotton in Brazil.

  8. Environmental sustainability and human well-being indicators from the ecosystem perspective in the Middle Paraíba Region, Rio de Janeiro State, Brazil Indicadores de sustentabilidade ambiental e de bem-estar em perspectiva ecossistêmica na Região do Médio Paraíba, Rio de Janeiro, Brasil

    OpenAIRE

    Carlos Machado de Freitas; Gabriel Eduardo Schütz; Simone Gomes de Oliveira

    2007-01-01

    Population urbanization is a global trend, and socioeconomic activities in urban areas cause changes that affect the environment and human well-being beyond the specific territories, thus connecting urban to non-urban areas and creating city-regions. This article's objective, from an ecosystem perspective, is to gather a set of information on municipalities (counties) belonging to the Middle Paraíba River Valley Region in the State of Rio de Janeiro, Brazil, in order to identify conditions an...

  9. Copper deficiency conditioned by high levels of zinc, manganese and iron in the Middle Paraíba, RJ, Brazil
    Deficiência de cobre condicionada a altos teores de zinco, manganês e ferro na região do Médio Paraíba, RJ, Brasil

    OpenAIRE

    Ana Paula Lopes Marques; Rita de Cássia Campbell Machado Botteon; Estelle Barreto de Amorim; Paulo de Tarso Landgraf Botteon

    2013-01-01

    Concentrations of microminerals in the soils, pastures, and sera of adult and young bovines were determined in 7 areas of Middle Paraíba, Rio de Janeiro, Brazil, that showed a history of low reproductive performance, marked weight loss of cows after calving, allotriophagy, and changes in pelage color. The animals were subjected to clinical evaluation, and the main signs were as follows: regular to poor general condition, anemia, alopecia, depigmentation of the pelage in adult animals, discolo...

  10. Insectivory in Potamotrygon signata (Chondrichthyes: Potamotrygonidae), an endemic freshwater stingray from the Parnaíba River basin, northeastern Brazil Insetivoria em Potamotrygon signata (Chondrichthyes: Potamotrygonidae), uma raia de água doce endêmica da bacia do rio Parnaíba, nordeste do Brasil

    OpenAIRE

    G De Moro; Charvet, P.; RS. Rosa

    2012-01-01

    Potamotrygon signata is an endemic freshwater stingray species in the Parnaíba River basin, Brazil. After its original description, only citations in systematic lists were recorded in the literature and the biology of the species remains unknown, including the feeding habits. The aim of this study is to characterize the overall diet of P. signata based on analysing stomach contents and to provide preliminary information on intraspecific diet variability between sexes and maturity stages. The ...

  11. A new side-neck turtle (Pelomedusoides: Bothremydidae) from the Early Paleocene (Danian) Maria Farinha Formation, Paraíba Basin, Brazil.

    Science.gov (United States)

    Carvalho, Anny Rafaela De Araújo; Ghilardi, Aline Marcele; Barreto, Alcina Magnólia Franca

    2016-01-01

    Limestone and marl from Maria Farinha Formation (Paraíba Basin, NE Brazil) accumulated in a shallow continental shelf environment during the expansion of the Atlantic Ocean in early Paleocene (Danian). It contains a rich paleontological record, which comprises many marine invertebrates, several species of bony and cartilaginous fishes, a crocodyliform and turtle remains. Here, we describe a new genus and species of pleurodire turtle from Maria Farinha Formation, based on a nearly complete plastron, an incomplete left pelvic girdle, and four dermal plates of the carapace. We tested the phylogenetic position of Inaechelys pernambucensis gen. et sp. nov. by including it in a comprehensive cladistic analysis of pleurodires. The new species is included within Botrhemydidae, with affinities to Bothremydini, positioned as sister group of Rosasia soutoi. Inaechelys pernambucensis gen. et sp. nov. differs from R. soutoi for the almost straight anterior lobe cranial edge of its plastron, as well as for its pentagonal shaped entoplastron and its abdominal shield midline, which is considerably smaller than the respective femoral shield midline. Inaechelys pernambucensis is the first turtle species formally described from Brazilian Paleocene strata. Within Bothremydidae, it is also the first conclusively fully marine species described for this country. This new record contributes to the understanding of the ecology and paleobiogeographical distribution of Bothremydidae family. PMID:27395602

  12. Palynological and sedimentary analysis of the Igarapé Ipiranga and Querru 1 outcrops of the Itapecuru Formation (Lower Cretaceous, Parnaíba Basin), Brazil

    Science.gov (United States)

    Ferreira, Neila N.; Ferreira, Elizabete P.; Ramos, Renato R. C.; Carvalho, Ismar S.

    2016-03-01

    The siliciclastic sediments of the Itapecuru Formation occur in a large area of the Parnaíba Basin and its deposits crop out along the Itapecuru River, in Maranhão State, northern Brazil. The palynological analysis of the Igarapé Ipiranga and Querru 1 outcrops strata yields a rich and diversified data. The presence of index-palynofloras in assemblages allows the identification of the Complicatisaccus cearensis Zone, of Late Aptian-Early Albian age. Terrestrial palynomorphs are abundant in the assemblages, being represented by bryophytes and pteridophytes, especially perisporate trilete spores (Crybelosporites and Perotrilites), and gymnosperms and angiosperms (Afropollis and Elaterosporites). The composition of palynological assemblages suggests the presence of moist soils for both outcrops. Acritarchs were recovered in the Querru 1 outcrop, which suggest a marine setting supporting a tidal flat environment indicated by facies associations. Furthermore, reworked Paleozoic palynomorphs were observed in the Querru 1 outcrop. The microflora from Igarapé Ipiranga outcrop suggests terrestrial environment corroborating with floodplain environment indicated by facies association.

  13. Phytoplankton and environmental factors in the Paraíba do Norte River Estuary, northeastern Brazil: composition, distribution and quantitative remarks

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    Roberto Sassi

    1991-01-01

    Full Text Available This paper reports the results obtained from studies on the estuarine phytoplankton of the Paraíba do Norte River in northeastern Brazil. Surface and near-bottom samples were taken at four stations numbered seawards, during high and low tides from September 1978 to September 1979. A total of 139 phytoplankters were encountered. Diatoms and dinoflagellates showed highest diversity in most saline areas. Typical freshwater organisms were restricted to stations I and II where salinity was more reduced. Maximum cell densities were: 11,256,000 cells/1, 4,380,000 cells/1, 1,276,000 cells/1 and 1,035,000 cells/1, for stations I, II, III and IV, respectively. Sewage enrichments were probably responsible for the greatest values of the first two stations. However, in these stations the turbidity reduces light penetration, limiting phytoplankton growth particularly during the rainy season. The phytoflagellates (maximum of up to 4,874,000 cells/1 and the diatoms Thalassiosira spp (maximum of up to 9,262,000 cells/1 were dominant during the annual cycle. Other important taxa were Navicula spp, Cylindrotheca closterium, Paralia sulcata, Thalassionema nitzschioides and the dinoflagellate Protoperidinium spp. Seasonal variations of phytoplankton densities, dissolved oxygen, phosphate, water transparency, temperature, salinity and suspended material are also presented.

  14. REPRODUCTIVE CYCLE OF Leporinus copelandii (Pisces: Anostomidae FEMALES FROM THE LOWER PARAÍBA DO SUL RIVER BASIN, RJ – BRAZIL

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    Ana Paula Ribeiro Costa Erthal

    2015-12-01

    Full Text Available The aim of this study were investigate the reproductive biology of the fish Leporinus copelandii, a specie at risk of extinction in the lower Paraíba do Sul River basin. During a period of 14 months, a total of 143 females of red-piau were captured, between Itaocara and Campos dos Goytacazes cities (RJ, Brazil. A histological study shows four stages of the oocyte development (I, II, III and IV and five stages of the reproductive cycle of females: rest (1, initial maturation (2A, intermediary (2B, advanced (2C and spawned (4 were identified. The pattern of L. copelandii oocyte development suggests development type synchronous in two groups, characterizing total spawning. Spawned females were captured in November, two months after the peak of frequency of competent females for reproduction. Histologically, a little occurrence of empty follicles was observed in spawned females. The medium diameter of the type IV oocyte of the spawned females (1475.1 ± 884.3mm was significantly larger (Tukey, P <0.001; VC = 41.73%; n = 259 than advanced maturation females (1202.6 ± 245.3mm, what allows suggesting that the study place probably doesn't represent the reproductive area of L. copelandii.

  15. Capture techniques' use of Caranguejo-uçá crabs (Ucides cordatus) in Paraíba state (northeastern Brazil) and its socio-environmental implications.

    Science.gov (United States)

    Nascimento, Douglas M; Ferreira, Emmanoela N; Bezerra, Dandara M M S Q; Rocha, Pollyana D; Alves, Rômulo R N; Mourão, José S

    2012-12-01

    The present study was undertaken in two traditional communities that are located on the margins of the estuary and mangrove complex of the Mamanguape River, Paraíba state (PB), Brazil. This work describes the crabs capture techniques tapamento and redinha, and identifies the negative socio-environmental impacts of redinha, using qualitative methods (open and semi-structured interviews, guided tours, direct observation and the administration of questionnaires). Results indicate that currently only two principle techniques are used to capture Ucides cordatus: redinha and tapamento. Tapamento has a low impact in relation to redinha. Redinha was pointed out by interviewees as a system that has social impact (social conflicts, breaking of traditions, substitution and extinction of techniques) and environmental impact (less selective captures and high productivity, mangrove pollution, death of crabs caught in traps, cutting of the roots of Rhizophora mangle, micro-habitat loss resulting from galleries destroyed and polluted). Knowledge of crab harvesting carried out using these two techniques and the possible social and environmental impacts caused by redinha, can lead to more effective planning and actions towards the conservation of the species. PMID:23070129

  16. Mutagenic potential of pollutans in the water of the Paraíba do Sul river, Tremembé, SP, Brazil, using the Allium cepa test

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    Agnes Barbério

    2011-04-01

    Full Text Available The mutagenicity can be related to chromosomic breaks induced by environmental pollutants. The aim of this research was to characterize the mutagenic potential of the pollutants in the water of the Paraíba do Sul river, in Tremembé city, São Paulo State, Brazil, analyzing chromosomal changes in the meristematic cells of Allium cepa, in the summer (April and winter (August of 2008. The bulbs were exposed for 72 h to the treatments: water from river, Hoagland solution (negative control and 15 µg/L from MMS – methyl methanesulfonate (positive control. In each treatment, three bulbs were exposed and for each bulb, five slides were prepared. For mitotic index (MI and micronucleus (MN frequency rate, a total of 2,000 cells per root/slide were analyzed and 100 cells for the chromosome aberrations (CA. In April, the pollutants induced a high mutagenic potential in the meristematic cells of Allium cepa, the frequency rate of MN, stickiness and CA from non-identified type were greater than the negative control. In August, the only significant change found was the chromosome bridges. There was no significant change for MI. These results indicate that the effluents which have varied sources are inducing harmful effects on the bioindicator, therefore, it is important to keep biomonitoring and adopting effluents control measures. The measures are important because these waters are used primarily for public supply and irrigation.

  17. Gastrintestinal helminths Of Cerdocyon thous (Linnaeus, 1766 -Smith, 1839 from the caatinga area of the Paraíba State, Brazil

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    Roberto César Lima

    2013-12-01

    Full Text Available The crab eating fox, Cerdocyon thous (Linnaeus, 1766 – Smith, 1839, is a medium sized canid which is found in almost every region of Brazil. It is the only registered native canid specie to be found in the semi-arid Northeastern region of the country. This study had as its objectives: the identification of the helminth fauna common to Cerdocyon thous found in the Caatinga of the state of Paraíba; and the determination of the ecological indications of helminthic infection, hoping to make a favourable addition to the understanding of this little known biome. In this study, 58 animals that were found as ‘roadkill’ on the highways in the municipality of Patos were used. The gastrointestinal helminths from these animals were colected. All the animals in this study were infected with helminths. 16 species of helminths were identified, two being trematodes, one being a cestode, one being an acanthocephalus, and the remaining twelve being nematodes. In this study a new specie, named Pterygodermatites pluripectinata n. sp. Was discovered and its host and location described.

  18. Brazil

    International Nuclear Information System (INIS)

    Technological advances by newly industrialized countries (NICs) have become a central concern of the recent literature on the political economy of development. Striking a fatal blow to dependency thinking, in so far as it had diagnosed a structural barrier to technological development, these countries have absorbed foreign technology and have developed a very impressive domestic technological capacity. Moreover, their exports have evolved from a traditional reliance on raw materials and unprocessed goods to include increasingly sophisticated manufactured goods and technology itself. The capabilities, motivations, and structures behind nuclear exports must be examined in light of these secular trends. This paper reports on this exploratory analysis of the country's emergence as a nuclear supplier which focuses on six major areas: the balance of motivations and constraints underlying Brazil's nuclear export potential; areas of extant capabilities that would allow the country to play a significant role as a nuclear supplier; formal and informal structures beneath nuclear export policy; patterns of nuclear trade as reflected in past transactions; prospects for continuity and change; generalizability of findings to other emerging suppliers

  19. [Factors associated with linear growth of socially vulnerable children of the State of Paraíba, Brazil].

    Science.gov (United States)

    Pedraza, Dixis Figueroa; Sales, Márcia Cristina; Menezes, Tarciana Nobre de

    2016-03-01

    This study set out to examine the associated factors, including zinc deficiency, of stunting in children attended in daycare centers in the State of Paraíba. It is a cross-sectional study, involving 353 children aged 6-72 months old. Data on biological characteristics, health situation and socioeconomic conditions of children were obtained by a questionnaire. Children with height for age indices two z scores below the median value of the reference population were considered to be stunted. The level of zinc in hair was determined by atomic absorption spectrophotometry. The prevalence of stunting was 7.36%. Low birth weight, age range 6-36 months, incomplete immunization, low maternal weight, per capita income of less than 0.5 minimum wages and living in a given/donated or invaded house were significantly associated with height for age index deficit. Stunted children were more prone to zinc deficiency, however, without statistical difference with normal growth children. Thus, there is a clear differential in linear growth that favors the children of higher socioeconomic status and favorable maternal history and health. PMID:26960105

  20. Environmental quality integrated indicator applied to the management of the Jiquiriçá river watershed, BA, Brazil

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    Raquel Maria de Oliveira

    2010-04-01

    Full Text Available In this work social, economic and environmental aspects were studied using the concept of programming by commitment, with the objective of structuring an integrated indicator capable of estimating the degree of the environmental quality of the Jiquiriça river basin, BA, composed by the indicator of environmental salubrity, water quality and soil’s protection. For the determination of the environmental salubrity indicator, data of the following variables were collected: existence of treated water supply, disposition and treatment of solid residues, diseases vectors control, the existence of the Agenda 21, socioeconomics data and indices of human development for each municipal district located in the area of the watershed. The indicator of the water quality was structured based on the analysis of water samples collected in eight sampling points along Jiquiriçá river and determined by seven parameters. The indicator of soil’s protection was based on the analysis of maps obtained according to the weight of each steepness and land use class. Results indicate that the watershed is in a poor equilibrium condition and suggest the need for structural investments as well as changes in public polices. The methodology used was efficient for this watershed management and could be used as tool for the environmental planning of the region, once it can be adapted to several situations depending on the data availability.

  1. Increment of Dental Caries in Infants from the City of Feira de Santana, BA, Brazil: 3-Year-Follow-up

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    Ana Isabel Fonseca SCAVUZZI

    2007-05-01

    Full Text Available Purpose: To investigate the increment of dental caries and potential clinical risk factors for this increase within a 3-year-period (1998-2001.Method: A prospective longitudinal study on dental caries was performed between 1998 a 2001 in a sample of 136 children aged 12 years and 30 months, in the city of Feira de Santana, BA. The city has fluoridated water supply and the children were evaluated at three different moments: baseline, after 1 year and after 3 years. At the three moments, intraoral examination was performed for detection of dental caries (dmf-t index, dental plaque and white spot lesions on the buccal surfaces of maxillary incisors and presence of molars. Data were analyzed by distribution of absolute and relative frequencies, means, median and standard deviation, and use of chi-square, Wilcoxon test of signalized posts, Mc-Nemar and Fisher’s tests. Significance level was set at 5%. Results: The prevalence of dental caries in the baseline examination was 5.9%, 18.4% after 1 year and 40.4% after 3 years, denoting an increment of 39.7%. It was confirmed the significant association between the variables white spot lesions, visible plaque and previous caries experience with the increment of dental caries after 3 years. There was no association with the presence of primary molars. Conclusions: The prevalence of dental caries after 3 years was approximately 7 times higher than that of the baseline examination and twice as higher as that of the baseline examination. The clinical risk factors identified in this study are important indicators of the increment of dental caries in very young children.

  2. Meliponiculture in Quilombola communities of Ipiranga and Gurugi, Paraíba state, Brazil: an ethnoecological approach

    Science.gov (United States)

    2014-01-01

    Background The Quilombola communities of Ipiranga and Gurugi, located in Atlantic Rainforest in Southern of Paraíba state, have stories that are interwoven throughout time. The practice of meliponicultura has been carried out for generations in these social groups and provides an elaborate ecological knowledge based on native stingless bees, the melliferous flora and the management techniques used. The traditional knowledge that Quilombola have of stingless bees is of utmost importance for the establishment of conservation strategies for many species. Methods To deepen study concerning the ecological knowledge of the beekeepers, the method of participant observation together with structured and semi-structured interviews was used, as well as the collection of entomological and botanical categories of bees and plants mentioned. With the aim of recording the knowledge related to meliponiculture previously exercised by the residents, the method of the oral story was employed. Results and discussion Results show that the informants sampled possess knowledge of twelve categories of stingless bees (Apidae: Meliponini), classified according to morphological, behavioral and ecological characteristics. Their management techniques are represented by the making of traditional cortiço and the melliferous flora is composed of many species predominant in the Atlantic Rainforest. From recording the memories and recollections of the individuals, it was observed that an intricate system of beliefs has permeated the keeping of uruçu bees (Melipona scutellaris) for generations. Conclusion According to management techniques used by beekeepers, the keeping of stingless bees in the communities is considered a traditional activity that is embedded within a network of ecological knowledge and beliefs accumulated by generations over time, and is undergoing a process of transformation that provides new meanings to such knowledge, as can be observed in the practices of young people. PMID

  3. Capture techniques' use of Caranguejo-uçá crabs (Ucides cordatus in Paraíba state (northeastern Brazil and its socio-environmental implications

    Directory of Open Access Journals (Sweden)

    Douglas M. Nascimento

    2012-12-01

    Full Text Available The present study was undertaken in two traditional communities that are located on the margins of the estuary and mangrove complex of the Mamanguape River, Paraíba state (PB, Brazil. This work describes the crabs capture techniques tapamento and redinha, and identifies the negative socio-environmental impacts of redinha, using qualitative methods (open and semi-structured interviews, guided tours, direct observation and the administration of questionnaires. Results indicate that currently only two principle techniques are used to capture Ucides cordatus: redinha and tapamento. Tapamento has a low impact in relation to redinha. Redinha was pointed out by interviewees as a system that has social impact (social conflicts, breaking of traditions, substitution and extinction of techniques and environmental impact (less selective captures and high productivity, mangrove pollution, death of crabs caught in traps, cutting of the roots of Rhizophora mangle, micro-habitat loss resulting from galleries destroyed and polluted. Knowledge of crab harvesting carried out using these two techniques and the possible social and environmental impacts caused by redinha, can lead to more effective planning and actions towards the conservation of the species.O estudo foi realizado em duas comunidades tradicionais localizadas às margens do complexo estuário-manguezal do rio Mamanguape, Paraíba (PB, Brasil. Foram descritas as técnicas de captura (tapamento e redinha, identificando os impactos socioambientais negativos provocados pela redinha na captura de caranguejos, utilizando métodos qualitativos (entrevistas abertas e semiestruturadas, turnês guiadas, observação direta e questionários. Os resultados indicaram que atualmente apenas estas técnicas são usadas na captura de Ucides cordatus. O tapamento apresenta baixo impacto em relação à redinha, que é apontada pelos entrevistados como causadora de impactos sociais (conflitos sociais, rompimento de

  4. Herd-level prevalence and risk factors for bovine viral diarrhea virus infection in cattle in the State of Paraíba, Northeastern Brazil.

    Science.gov (United States)

    Fernandes, Leise Gomes; Nogueira, Adriana Hellmeister de Campos; De Stefano, Eliana; Pituco, Edviges Maristela; Ribeiro, Cláudia Pestana; Alves, Clebert José; Oliveira, Tainara Sombra; Clementino, Inácio José; de Azevedo, Sérgio Santos

    2016-01-01

    Serological surveys based on a planned sampling on bovine viral diarrhea virus (BVDV) infection in Brazilian cattle herds are scarce. A cross-sectional study was carried out to determine herd- and animal-level seroprevalences and to identify risk factors associated with herd-level seroprevalence for BVDV infection in the State of Paraíba, Northeastern Brazil, from September 2012 to January 2013. The state was divided into three sampling strata, and for each stratum, the prevalence of herds infected with BVDV and the prevalence of seropositive animals was estimated by a two-stage sampling survey. In total, 2443 animals were sampled from 478 herds. A virus-neutralization test was used for BVDV antibody detection. A herd was considered positive when at least one seropositive animal was detected. The herd- and animal-level prevalences in the State of Paraíba were 65.5% (95% confidence interval (CI) = 61.1-69.7%) and 39.1% (95% CI = 33.1-45.6%), respectively. The frequency of seropositive animals per herd ranged from 10 to 100% (median of 50%). The risk factors identified were as follows: more than six calves aged ≤12 months (odds ratio (OR) = 3.72; 95% CI = 2.08-6.66), animal purchasing (OR = 1.66; 95% CI = 1.08-2.55), pasture rental (OR = 2.15; 95% CI = 1.35-3.55), and presence of veterinary assistance (OR = 2.04; 95% CI = 1.10-3.79). Our findings suggest that the implementation of control and prevention measures among farmers, with the aim of preventing dissemination of the agent in the herds, is necessary. Special attention should be given to addressing the identified risk factors, such as sanitary control prior to animal purchasing and to discourage the pasture rental, as well as to encourage the vaccination in the herds. PMID:26498460

  5. Permian paleogeography of west-central Pangea: Reconstruction using sabkha-type gypsum-bearing deposits of Parnaíba Basin, Northern Brazil

    Science.gov (United States)

    Abrantes, Francisco R.; Nogueira, Afonso C. R.; Soares, Joelson L.

    2016-07-01

    Extreme aridity during Late Permian - Early Triassic period was the main factor for resetting the entire paleoclimate of the planet. Permian evaporite basins and lacustrine red beds were widely distributed along the supercontinent of Pangea. Sulphate deposits in Western Pangea, particularly in Northern Brazil, accumulated in an extensive playa lake system. Outcrop-based facies and stratigraphic analysis of up to 20 m thick evaporite-siliciclastic deposits reveal the predominance of laminated reddish mudstone with subordinate limestone, marl and lenses of gypsum. The succession was deposited in shallow lacustrine and inland sabkha environments associated with saline pans and mudflats. Gypsum deposits comprise six lithofacies: 1) bottom-growth gypsum, 2) nodular/micronodular gypsum, 3) mosaic gypsum, 4) fibrous/prismatic gypsum, 5) alabastrine gypsum, and 6) rosettes of gypsum. Gypsum types 1 and 2 are interpreted as primary deposition in saline pans. Bottom-growth gypsum forms grass-like crusts while nodular/micronodular gypsum indicates displacive precipitation of the crust in shallow water and the groundwater capillary zone. Types 3 and 4 are early diagenetic precipitates. Abundant inclusions of tiny lath-like anhydrite crystals suggest a primary origin of anhydrite. Alabastrine gypsum, fibrous gypsum (satinspar) and rosettes of gypsum probably derived from near-surface hydration of anhydrite. The gypsum-bearing deposits in the Parnaíba Basin contribute towards understanding paleogeographic changes in Western Pangea. A progressive uplift of East Pangea, culminated in the forced regression and retreat of epicontinental seas to the West. Restricted seas or large lakes were formed before the definitive onset of desert conditions in Pangea, leading to the development of extensive ergs.

  6. Data on biology and exploitation of West Atlantic sperm whales, Physeter macrocephalus (Cetacea: Physeteridae off the coast of Paraíba, Brazil

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    Gustavo Toledo

    2009-12-01

    Full Text Available This study analyzes data on the biology of sperm whales, Physeter macrocephalus Linnaeus, 1758, obtained between 1965 and 1980 by the COPESBRA at the Costinha Whaling Station, Paraíba, Brazil. The data come from the log books of the whaling ships and from the spreadsheets containing biological information filled out by employees of the SUDEPE at the flensing plan of the whaling station. The catches occurred from June to December, in an area delimited by 06º22'-07º52'S and 33º26'-34º58'W. A total of 641 sperm whales were killed in this period. The average sex ratio was 2.05 females to each male. The mean largest frequency of females was recorded in the first and the last months of the season, and that of males in July/August. The mean total length (TL of males was 11.4 m (minimum 7.2 m, maximum 17.6 m. The females had a mean TL of 10.1 m (minimum 8.6 m, maximum 12.9 m. A decrease was observed in the TL of females along the years. Fetuses were observed in 8.3% of the catches. They had TL between 0.24 and 4.3 m. All sperm whales had food in their stomachs, showing that they feed in the area. As in other places north to the 40ºS, there was a higher frequency of females than males. The difference between the time of maximum catch of males and females may reflect a temporal segregation in the arrival of sperm whales in the area. The reproductive activity of sperm whales in these tropical waters occurs year-round.

  7. Características de pacientes com síndrome da fibromialgia atendidos em hospital de Salvador-BA, Brasil Characteristics of patients with fibromyalgia syndrome assisted in a hospital of Salvador, BA, Brazil

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    Sérgio Ricardo Matos Rodrigues da Costa

    2005-04-01

    Full Text Available OBJETIVO: descrever as características demográficas, sócio-econômicas e clínicas de pacientes com síndrome da fibromialgia (SF atendidos no Hospital Santo Antônio em Salvador, BA, Brasil. MÉTODOS: cento e vinte pacientes com SF foram avaliados prospectivamente por dois reumatologistas, quanto aos dados clínico-epidemiológicos e manifestações clínicas. RESULTADOS: todos os pacientes eram do sexo feminino, com média de idade igual a 29,8 anos. A dor difusa foi encontrada em todas as pacientes e fadiga em 94,2% (n=113. Ansiedade foi referida por 105 pacientes (87,5% e depressão por 47 (39,2%. O tender-point mais encontrado foi o suboccipital direito, em 40% (n=48 dos pacientes e o menos encontrado foi o glúteo direito, em 26,7% (n=26. A média do número total de tender points foi 13,6 (limites de 11 a 18, sendo a média e a mediana 14. O grupo de pacientes que tiveram número de tender-points superior ou igual à mediana apresentou, significativamente, menor renda familiar (pOBJECTIVE: to describe the demographic, socioeconomic and clinical characteristics of patients with Fibromyialgia Syndrome (FS assisted at the Hospital Santo Antônio in Salvador, BA, Brazil. METHODS: a hundred and twenty patients with FS were prospectively evaluated by two rheumatologists in relation to the clinical-epidemic data and clinical manifestations. RESULTS: all the patients were female, with average age of 29.8 years. Diffuse pain was found in all patients and fatigue was found in 94.2% (n = 113. Anxiety was referred by 105 patients (87.5% and depression by 47 (39.2% of them. The most common tender point found was the right subocciput, reported by 40% (n = 48 of the patients and the less found was the right gluteal, in 26.7% (n = 26. The mean of the total number of tender points was 13.6 (limits from 11 to 18, being the average and the median 14. The patients' group that had the number of tender points superior or equal to the median presented

  8. Educação em saúde e nutrição em João Pessoa, Paraíba Health and nutrition education in João Pessoa, Paraíba, Brazil

    Directory of Open Access Journals (Sweden)

    Roberto Teixeira LIMA

    2000-04-01

    Full Text Available Este estudo analisa as características das práticas de Educação em Saúde e Nutricão no município de João Pessoa, Paraíba, Brasil. Foram investigados 65 Serviços de Saúde, dos 70 catalogados, por meio de visitas e entrevistas com os profissionais para obtenção de informações sobre as práticas de Educação em Saúde. Dos Serviços investigados, 74,0% desenvolvem a prática de Educação em Saúde. Os profissionais médicos, enfermeiros, psicólogos, odontólogos e assistentes sociais estão presentes na maioria dos Serviços, e apenas 43,7% dos Serviços têm nutricionistas em seus quadros. Na atuação direta em Educação em Saúde, as assistentes sociais, enfermeiras e psicólogas foram as que apresentaram maior participação. Palestras, cartazes e folhetos foram os principais recursos identificados nas atividades educativas na maioria dos Serviços. A população alvo das atividades foi representada por gestantes, crianças pré-escolares e casais. Dos temas educativos, a maioria dos Serviços trabalha com aleitamento materno, pré-natal, planejamento familiar, higiene pessoal e vacinação. Foi verificado que os Serviços não apresentam uma forma objetiva e sistemática de avaliação das práticas educativas, muito embora a maioria deles considere o retorno dos pacientes aos serviços como forma de avaliação.This report analyzes characteristics of Health Education practices in the city of João Pessoa, Paraíba State, Brazil. The data were obtained from 65 Health Services of the 70 catalogued, including different health centers, by means of visits and interviews with the health professionals in the Services. Among the investigated Services, 74.0% practices Health Education. Only 43.7% of the investigated Services have nutritionists; the most frequent professionals are: doctors, nurses, psychologists, dentists and social workers. In the educational activities, social workers, nurses and psychologists were the health

  9. Epidemiology of snakebite accidents in the municipalities of the state of Paraíba, Brazil Epidemiologia dos acidentes ofídicos ocorridos nos municípios do Estado da Paraíba, Brasil

    Directory of Open Access Journals (Sweden)

    Rafaella Moreno Barros

    2013-05-01

    Full Text Available Accidents involving venomous animals represent an important, albeit neglected, public health issue worldwide. A descriptive study was made of snakebite cases attended and recorded between 2007 and 2010 in the health units of the municipalities of Cariri, State of Paraíba, northeastern Brazil. Data was collected from the Injury Notification Information System data banks of the Health Ministry and a total of 351 records of snakebite victims were reviewed. Victims were predominantly male farm workers over 50. The highest incidence of snakebites occurred in rural areas, between April and June of 2007 and 2010. Snakes of the genus Bothrops were responsible for most cases, and victims were mostly bitten on the feet. The majority of the victims received medical assistance within 1 to 3 hours after being bitten. The most common clinical manifestations were pain, edema and ecchymosis, which were mainly classified as mild or moderate. Two deaths were reported. It was concluded that there is a significant impact of seasonality in snakebites, the prevalence of attacks caused by Bothrops, affecting the lower limbs of adult male farmers in rural areas. The findings of this study may contribute to identify the conditions that increase the risk of snake attacks in the northeastern region.Acidentes por animais peçonhentos representam um importante, embora negligenciado, problema de saúde pública mundial. Neste sentido, foi realizado um estudo descritivo dos acidentes ofídicos atendidos e registrados, entre 2007 e 2010, nas unidades de saúde dos municípios do Cariri, Estado da Paraíba, Nordeste do Brasil. As informações foram coletadas do banco de dados do Sistema de Informação de Agravos de Notificação do Ministério da Saúde. Um total de 351 registros de vítimas de ataques por serpentes peçonhentas foram analisados. As vítimas foram predominantemente trabalhadores rurais do sexo masculino com mais de 50 anos. As maiores incidências de

  10. Comparative assessment of licensing processes of uranium mines in Brazil

    International Nuclear Information System (INIS)

    Commercial operation of uranium mining and milling started in Brazil, at the Pocos de Caldas Unit, State of Minas Gerais, in 1982. The Pocos de Caldas Unit was licensed by the Brazilian Regulatory Body (CNEN) and its is now in the decommissioning process. In 2000, a new mining and milling installation, the Caetite Unit, located in State of Bahia, started operation. This paper will discuss how Brazilian Nuclear Energy Commission is licensing the Caetite Unit based on the lessons learned from the Pocos de Caldas Unit. The objective is to draw attention to the importance of the safety assessment for a new unit, specially considering that some wrong decisions were taken for the Pocos de Caldas unit. These decisions lead to less effective long term solutions to protect the environment. Notwithstanding the differences between the two units, it is of great value to use the acquired experience to avoid or minimize the short, medium and long term impacts to the environment and population in the new operation. (author)

  11. Characterization of fluids associated to mineral paragenesis of uraniferous albitites and their gnessic embedding rocks from Lagoa da Rabicha Uranium Deposit, Lagoa Real, BA, Brazil

    International Nuclear Information System (INIS)

    Brazil has now the seventh largest uranium reserve in the world. The Lagoa Real Uranium Province (PULR) is located in central-south region of Bahia State. Along a helical structure, north-south oriented, with approximately 33 km long, there are 34 known uranium mineralized areas. In its central-south portion is located anomaly 03 (AN03), named Lagoa da Rabicha, discovered and mapped by NUCLEBRAS (Brazilian Nuclear Enterprises), in the 80s. The Cachoeira Mine (AN13), located in northern PULR, is currently the only uranium mine in production in Brazil and even in South America. Nowadays it is observed a growth in energy demand in Brazil and also worldwide and studies and research applied to the petrogenetic uranium deposits are relevant both to be able to increase their potential for exploration and to assist in the possible future occurrences discovery. In recent years, fluid inclusions analysis (FI) have been widely used to study the genesis of uranium deposits in PULR and even thought there are still doubts about the uranium mineralization metallogenesis at Lagoa Real. Therefore, this work aimed to study the minerals and fluids associated with Lagoa da Rabicha albitites uraniferous and gneissic host rocks. In this way it was prepared an overview of the fluids found in this sector, establishing a comparison with several authors' studies in this and others Lagoa Real anomalies, trying to show the solutions evolution, at the same time that happened the uraninite precipitation. Petrography, electronic microprobe, laser ablation (LA-ICP-MS) and fluid inclusion studies were the applied methodologies. The fluids inclusions assemblages present in pyroxene, garnet and plagioclase, the main mineralogical constituents, were studied. The older fluid was found in aegirine-augite pyroxene and had aquo-saline composition (without carbonic phases) with Ca, Fe and Mg, 9-13 wt% NaCl salinities and homogenization temperatures between 220 and 290 deg C. Concomitantly, occurred a

  12. Cytogenetic study of two species of the family Pimelodidae (Siluriformes collected in lago Guaíba, Rio Grande do Sul, Brazil

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    Fernando Rodrigo Treco

    2008-03-01

    Full Text Available A cytogenetic study was conducted on specimens of Parapimelodus nigribarbis and Pimelodus maculatus collected in the lago Guaíba drainage, Porto Alegre, Rio Grande do Sul, Brazil. The two species had a diploid number of 56 chromosomes, with P. nigribarbis showing a karyotype of 20m + 20sm + 4st + 12a with FN of 100, and P. maculatus showing a karyotype of 24m + 20sm + 6st + 6a with FN of 106. NORs were demonstrated in both species in only one pair of subtelocentric chromosomes, in the terminal region of the long arm, which was coincident with C- banding and CMA3 staining, while DAPI staining was negative in these regions. Parapimelodus nigribarbis had a greater number of heterochromatic bands than did P. maculatus, which were distributed mainly in the terminal regions, where the latter species showed an interstitial band on the short arm of the first metacentric pair. C-banding plus CMA3 demonstrated heterochromatin that was associated with GC-rich NORs in both P. nigribarbis and P. maculatus, although other fluorescent regions were also observed in the former species. With C-banding plus DAPI, various chromosomal regions were stained in the two species, along with interstitial staining in P. maculatus, indicating that heterochromatin contained a greater quantity of AT-rich regions.Exemplares de Parapimelodus nigribarbis e Pimelodus maculatus coletados na bacia do rio Guaíba, Porto Alegre, Rio Grande do Sul, foram analisados citogeneticamente. As duas espécies apresentaram um número diplóide de 56 cromossomos, com P. nigribarbis mostrando um cariótipo de 20m + 20sm + 4st + 12a, NF igual a 100; e P. maculatus com 24m + 20sm + 6st + 6a e NF igual 106. As NORs foram evidenciadas em apenas um par de cromossomos subtelocêntricos, na região terminal do braço longo, nas duas espécies estudadas, sendo coincidentes com a banda C e CMA3; o DAPI nestas regiões se mostrou negativo. Parapimelodus nigribarbis apresentou um maior número de bandas

  13. Cynolebias parnaibensis, a new seasonal killifish from the Caatinga, Parnaíba River basin, northeastern Brazil, with notes on sound producing courtship behavior (Cyprinodontiformes: Rivulidae

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    Wilson J. E. M. Costa

    2010-01-01

    Full Text Available Cynolebias parnaibensis from the Canindé River drainage, Parnaíba River basin, northeastern Brazil, is described. It is considered to be a member of a clade endemic to the Caatinga. The clade is diagnosed, e. g., by a series of structural modifications of the pharyngeal jaw apparatus, which is related to the sound production exhibited by males during courtship behavior. The courtship sound of C. parnaibensis consists of a single pulse named as thump (duration 0.031-0.133s; interthump intervals 0.020-8.319s; dominant frequency 70.3-93.8 Hz. The new species is distinguished from all other congeners by a combination of 27-31 neuromasts around eye, 29-33 supraorbital neuromasts, 16-18 dorsal-fin rays and 19 anal-fin rays in males, 28-31 caudal-fin rays, 33-36 scales in the longitudinal series, 3+10 gill-rakers in the first branchial arch, absence of second pharyngobranchial teeth, absence of contact organs on the flank scales, 34-35 vertebrae, absence of teeth on vomer, and presence of transverse series of scales on the anal-fin base.Cynolebias parnaibensis, da drenagem do rio Canindé, bacia do rio Parnaíba, nordeste do Brasil, é descrita. Ela é considerada um membro de um clado endêmico da Caatinga. O clado é diagnosticado, e. g., por uma série de modificações estruturais do aparato mandibular faringiano, que está relacionado à produção de som exibida por machos durante o comportamento de corte. O som de corte de C. parnaibensis consiste de um único pulso denominado como thump (duração 0,031-0,133s; intervalos entre thumps 0,020-8,319s; frequência dominante 70,3-93,8 Hz. A nova espécie se distingue de todos os outros congêneres por uma combinação de 27-31 neuromastos em torno do olho, 29-33 neuromastos supraorbitais, 16-18 raios na nadadeira dorsal e 19 raios na nadadeira anal em machos, 28-31 raios na nadadeira caudal, 33-36 escamas na série longitudinal, 3+10 rastros branquiais no primeiro arco branquial, ausência de

  14. Kinematics and geometry of structures in the southern limb of the Paraíba do Sul divergent structural fan, SE Brazil: a true transtensional shear

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    Nolan M. Dehler

    2006-06-01

    Full Text Available Shear zones geometry in the Paraíba do Sul belt, southeastern Brazil, delineates a NE-trending fan-like structure. Shear zones dip towards SE in the northern limb, and towards NW in the southern one. This geometry has been interpreted either due to transpression or to late folding of flat-lying thrust surfaces. Stretching lineation plunges to ENE-ESE in the northern limb and towards NNE-NE in the southern one. Structural data in the southern limb of the divergent fan suggest a two stage kinematic evolution in high-temperature conditions: an earlier stage with top-to-SSW/SW sinistral thrusting and orogenic-parallel tangential motion, and a later stage with top-down to NNE/NE transtensional deformation. We propose a heterogeneous deformation model to explain the observed shear reversal, and suggest that the imposed transpressional displacement gradient may change during progressive deformation due to transient rheological inhomogeneities in bulk pure shear strain. In the earlier stage, the partially molten material could easily accommodate the imposed strain rates, giving rise firstly to the SW-directed shearing. As the thermal disturbance tended to vanish and the convergence increased, the NNE-directed transtensional shearing developed. We propose that the transtensional deformation characterized in this paper could be related to extrusion processes during regional transpressional strain.A geometria das zonas de cisalhamento no CinturãoParaíba do Sul no Rio de Janeiro, sudeste do Brasil, delineia uma estrutura-em-leque com direção NE. Estaszonas de cisalhamento mergulham para SE no flanco norte, e para NW no flanco sul da estrutura. Esta geometria tem sido interpretada de duas formas: (a implantação de um regime transpressivo ou (b dobramento tardio de superfícies de empurrão originalmente sub-horizontais. A lineação de estiramento mineral mostra caimento para ENE-ESE, no flanco norte, e para NNE-NE, no flanco sul, onde ocorre a Zona

  15. Estudo ecológico e zoogeográfico sobre a fauna de lagartos (Sauria) das dunas de Natal, Rio Grande do Norte e da Restinga de Ponta de Campina, Cabedelo, Paraíba, Brasil Ecologic and zoogeographic study on a fauna of lizards (Sauria) from Dunas of Natal, Rio Grande do Norte and from Restinga de Ponta de Campina, Cabedelo, Paraíba, Brazil

    OpenAIRE

    Eliza Maria Xavier Freire

    1996-01-01

    An inventory of the fauna of lizards was made in the dunes of Natal (Rio Grande do Norte, Brazil) and in the "restingas" (sandbanks with its associated vegetation) of Ponta de Campina (Cabedelo, Paraíba, Brazil) from October/84 to March/86. The objective was to know the composition and structure of these communities as well as to evaluate the zoogeographical importance of the spots. The samples were collected and the observations were made along of transects which were established to enable t...

  16. The use of genetic bioassays to evaluate the environmental quality in a region under the influence of urban waste in Guaíba lake basin (Brazil

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    Izabel Vianna Villela

    2013-06-01

    Full Text Available The mussel species Limnoperna fortunei was chosen as biomonitoring organism in Guaíba Lake Basin, based on population data, distribution, and sensitivity. Previous in vitro and in vivo studies studies with Single Cell Gel Assay (SCGA and Micronuclei test (MN on this freshwater mussel showed that it is successful in biomonitoring studies, especially in urban pollution monitoring. This study evaluated two sampling sites in the Guaíba Lake (Guaíba PC e Guaíba BR, near urban waste discharges, and a control site (Itapuã insight a preserved area, using L. fortunei individuals. Comparing to the control site, the Guaíba BR sample induced DNA damage in haemocytes of mussels sampled both in situ and exposed to laboratory conditions, whereas MN only in in situ collected mussels. This sample also presented the only surface water mutagenic result by Salmonella/microsome assay with TA98 in the presence of metabolic activation. Guaíba PC samples increased MN frequency in situ and in laboratory conditions comparing to the Itapuã results. Metal influence seems to be less important than organic influence in genotoxic induction. These results confirm the strong urban influence in this region, showing that biomonitoring is a powerful tool to detect this kind of contamination in water bodies.

  17. Origin, transport and fate of the dissolved organic matter produced in the watershed of the Paraíba do Sul River, Brazil.

    Science.gov (United States)

    Marques da Silva Junior, Jomar; Soares Gonçalves Serafim, Tassiana; Gomes de Almeida, Marcelo; Dittmar, Thorsten; de Rezende, Carlos Eduardo

    2015-04-01

    The Paraíba do Sul River (PSR) is an important river from Southeastern Brazil that flows through the states of São Paulo, Minas Gerais and Rio de Janeiro. The PSR is responsible for the water supply of over 14 million of the habitants. Due the human occupation and anthropic pressure, only 8% of it is original forest cover remains in the form of small fragmented patches. The remaining of the basin is mostly covered by grasses, such as pasture and sugar cane. Isotopic studies allows the monitoring of ecosystem changes and promotes specific links between ecology, land use and biogeochemical processes. We investigated the isotopic composition of the dissolved organic matter (DOM) in PSR. Our objective was to identify how extensive land use changes, from forest (C3 Plants) to pasture and sugar cane (C4 Plants), have affected river biogeochemistry of organic matter transported by PSR. Water samples were collected at 24 sites along the main channel of the PSR, 14 sites samples at the tributaries and 21 sites samples in the estuarine and marine environmental until 35km of the coast. Sampling was performed in the wet season of the 2013 and the dry season of the 2013. The fluvial and estuarine samples were processed with conventional filtration and the marine samples were processed with the cross-flow filtration. The dissolved organic matter (DOM) was isolated by solid-phase extraction (SPE) with the PPL cartridges (Styrene divinyl benzene polymer). Isotope measurements, organic carbon and nitrogen concentration were performed with a isotope-ratio mass spectrometry (Thermo Finningan). The 13C and the 15N values ranged from -20.0‰ and -29.0‰, and from -0.80 to 4.59 respectively, while the (C/N)a ratio varied between 8 and 41. The 13C were depleted in 13C at the river samples from the wet season, and in the estuary and marine areas as well. The 13C average values observed during the wet season in the PSR and in the estuarine samples are close to those

  18. Occlusal characteristics and orthodontic treatment need in black adolescents in Salvador/BA (Brazil: an epidemiologic study using the Dental Aesthetics Index

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    Arthur Costa Rodrigues Farias

    2013-02-01

    Full Text Available OBJECTIVE: The objective of this article is to evaluate the need of orthodontic treatment, prevalence and severity of the malocclusions in individuals of black ethnicity in a representative sample of schoolchildren of the city of Salvador/Brazil, as well as to verify if the malocclusion was affected by socio-demographic conditions such as age and gender. METHODS: The reference population was constituted of schoolchildren with age between 12 and 15 years, enrolled in public and private schools. The malocclusion was evaluated in 486 students of black ethnicity, with ages varying from 12 to 15 years, selected in random sample in multiple stages. The adopted significance level was 1% and the power of the test was 90%. A questionnaire registering demographic characteristics was filled out by each individual. The Dental Aesthetics Index (DAI was used by previously calibrated examiners (kappa 0.89, according to criteria of the World Health Organization. RESULTS: It was verified that most of the individuals (76% had little or any need for orthodontic treatment. About 24% showed a condition of severe malocclusion, culminating in a vital need for orthodontic treatment. The main occlusal characteristics found in the group with high need of orthodontic treatment were dental crowding and accentuated overjet. The age was positively related to the improvement of the maxillary overjet and to the presence of crowding. CONCLUSION: The development of public politics that aim the insertion of orthodontic treatment among the procedures of health programs, with the implementation and development of specialized centers, is fundamental.OBJETIVO: averiguar a necessidade de tratamento ortodôntico, prevalência e severidade das más oclusões em indivíduos negros numa amostra representativa de escolares da cidade de Salvador/BA (Brasil, além de determinar se as más oclusões eram afetadas por condições sociodemográficas como idade e sexo. MÉTODOS: o desenho

  19. Uranium mining impacts on water resources in Brazil

    International Nuclear Information System (INIS)

    Uranium mining and milling activities started operations in Brazil during the 80's. The first production Center was deployed in Pocos de Caldas (CIPC) State of Minas Gerais. The mine was exhausted in 1997, after has produced only 1200 t of U3O8. The second uranium plant began the operations in Caetite (URA), Bahia State, since 1999 and keeps operations until now with an annual U3O8 production of up to 400 t. The company plans to double this mark in Caetite production center with the exploration of another uranium deposits and initiate underground operations of current open-pit mine. Simultaneously, they are seeking a license for a third plant in the State of Ceara that could produce the double of foreseen capacity in URA. This scenery drives to some issues related to the impact of uranium production on water resources of the respective watersheds. The CIPC plant is a closing mine site, which requires permanent treatment of the company due to the fact their sources of pollutants are subject to the occurrence of Acid Mine Drainage. The URA plant is located in a semi-arid region of Brazil. The extraction of uranium from the ore is achieved by means of a Heap-Leach process, which has low water demand supplied by a network of wells and from a dam, but can contribute to change the groundwater quality and in some cases the extinguishing of wells was observed. An overall assessment of these impacts in national level could produce some lessons that we must take advantage for the ongoing project of Santa Quiteria or even in future sites. (author)

  20. Leaching of uranium from the Osamu Utsumi mine wastes, INB Caldas, Minas Gerais, Brazil

    International Nuclear Information System (INIS)

    Mining is one of the leading sectors of the Brazilian economy and as any other anthropogenic activity it generates residues that impact the environment directly. The Osamu Utsumi Mine, which belongs to the Nuclear Industries of Brazil (INB), operated from 1982 to 1995 with the activities of mining and metallurgical treatment of the uranium ore. Since then the INB has as a main environmental problem, the generation of acid mine drainage from wastes having its pH around 3. The chemical treatment of this acid water incurs an extremely high cost and generates a precipitate that is rich in some metals, including uranium. This precipitate has been disposed of in the mine opening and has caused an overload of chemical pollutants and radioactive elements in a place that was not planned to receive this volume of residues and does not meet the necessary condition for the construction of a repository. The content of uranium in the precipitate is approximately 0.25% - similar to the content of the metal found in the ore in the Caetite Mine (BA) - around 0.29%. The recovery of this uranium from the precipitate would generate a total of 150 tons of U3O8. In the present study an alkaline leaching process was carried out aiming at recovering the uranium from sludge samples disposed of for over 20 years. Sodium carbonate and bicarbonate were used as the leaching agents. The experiments were carried out by varying the concentrations of the leaching agents, extraction time and the solid percentage. The other parameters such as temperature, particle size and agitation were kept constant. The results showed that the recovery of the uranium can reach 100% in 24 hours. The uranium concentration in the solutions is around 250 mg.L-1 when using 10% of solids. Preliminary results showed that the recovery of uranium from the sludge would be a feasible practice. The conversion of an environmental liability into a valuable product is one of the most important objectives of this work. (author)

  1. The distribution and occurrence of the marine manatee (Trichechus manatus) in the estuary of the Mamanguape River, Paraíba, Brazil

    OpenAIRE

    Kleber Grubel da Silva; Danielle Paludo; Eunice Maria Almeida de Oliveira; Régis Pinto de Lima; Ricardo José Soavinski

    2011-01-01

    Although the existing historical records of marine manatees in the Brazilian coast since the 17th century, few studies about this species were conducted in Brazil. Among them, the estuary of the Mamanguape River is told to be the main place of this species concentration in the northeastern coast of Brazil, but this one is suffering oppression due to the improvement of human activities which can compromise the ecosystem as a whole. In this way, this work viewed to obtain information about the ...

  2. Occurrence of limnic molluscs and crustaceous on clusters of the golden mussel Limnoperna fortunei (Dunker, 1857, formed on “sarandi” at Guaíba Lake (rs, Brazil

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    Regina Maria de Fraga Alberto

    2008-12-01

    Full Text Available In order to verify the occurrence of invetebrates associated with macro clusters of Limnoperna fortunei (Dunker, 1857 formed on branches of “sarandi” (Chephalanthus glabratus (Spreng. K. Schum, quantitative samplings (N=28 were conducted for two years (2002 to 2004 at Veludo Beach on Guaíba Lake (municipality of Porto Alegre, RS, Brazil. From the results, the gastropod Heleobia piscium (Orbigny, 1835 was identified as a constant (78.57% species, while Potamolithus jacuyensis Pilsbry 1899 (35.71% and the crustaceous Hyalella curvispina Shoemaker 1942 (26% were indicated as accessory species. The other taxa were accidental (<25%: Ampullariidae (young individuals, Heleobia davisi (Silva & Thomé, 1985, Chilina parva (Martens, 1868 and Corbicula fluminea (Müller, 1774. Currently, the interspecific relationships among these taxa are poorly known.

  3. Caloric density of aquatic macrophytes in different environments of the Baía river subsystem, upper Paraná river floodplain, Brazil

    OpenAIRE

    Célia de Almeida Lopes; Anna Christina Esper Amaro de Faria; Gislaine Iachstel Manetta; Evanilde Benedito-Cecilio

    2006-01-01

    The aim of this work was to determine the caloric density of leaves, stems and roots of aquatic macrophytes in different environments of the Baía subsystem (Baía river and Fechada and Guaraná lagoons) on the Upper Paraná river floodplain, in addition to identify the variability between ecological groups. Samplings of Eichhornia crassipes, Salvinia spp, Pistia stratiotes, Eichhornia azurea, Polygonum sp, Cyperaceae and Poaceae were carried out in February 2003. Spatial differences in the calor...

  4. The quality of life of older people from the influence of religiosity and spirituality: care for the institutionalized elderly in Caetité (BA

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    Rosemeire Moreira de Oliveira

    2015-02-01

    Full Text Available This article illustrates how elderly caretakers from a Long-Term Care Institution (LTCI perform the care of the body, mind and spirit, and how it affects the life quality of the elderly. Emphasizes the importance of a better preparation for the caretakers to deal and supply the needs of these elderly, in order to provide cares involving the body, mind and the spirit. Uses observational research, with a cross-sectional, descriptive and quantitative qualitative approach.  

  5. Borrelia theileri: observação em carrapatos do gênero Boophilus microplus no município de Guaíba, RS, Brasil Borrelia theileri: observation on Boophilus microplus ticks in Guaiba, RS, Brazil

    Directory of Open Access Journals (Sweden)

    João Ricardo Martins

    1996-12-01

    Full Text Available Espiroquetas da espécie Borrelia theileri identificadas em uma estirpe de carrapatos Boophilus microplus provenientes do município de Guaíba, RS. A observação ocorreu no exame de hemolinfa de fêmeas adultas com 10 dias pós-repleçâo, corada por Giemsa. Não foram observadas espiroquetas em ovos provenientes de teleóginas infectadas. A detecção da estirpe infectada sugere a presença de borreliose em rebanhos bovinos, fato que eventualmente pode interferir em resultados de diagnóstico ou tornar-se motivo de preocupação em produtos derivados de sangue bovino tais como vacinas vivas contra anaplasmose e babesiose bovina.Spirochetes of species Borrelia theileri were identifica in afield-strain of the caule tick Boophilus microplus, in Guaíba, RS, Brazil. Hemolymph smears from females 10 days post-repletion were collected by gentty section of the tarsal-metatarsaijoint, and dropped onto a microscope slide, and stained by Giemsa. No spirochetes were observed in eggs squashed and stained by Giemsa from the same infected strain. The detection of B. microplus adult females infected with Borrelia theileri suggesfs the likely presence of borreliosis in bovine heras what might eventually interfere with the interpretation of diagnosis results or become cause for concern in blood products such as anaplasmosis and babesiosis live vaccines.

  6. Chromosomal differentiation between populations of Oligosarcus hepsetus (Teleostei, Characidae from small tributaries at opposite margins of the Paraíba do Sul river (Brazil

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    Liano Centofante

    2006-11-01

    Full Text Available Cytogenetic analyses were carried out in two populations of Oligosarcus hepsetus from tributaries at opposite margins of the Paraíba do Sul river. The same diploid number was observed in both populations (2n=50, but they showed remarkable differences related to karyotype formula and distribution of rDNA sites as revealed by silver nitrate staining and in situ hybridization with 18S probes. The results suggested that the main channel of the Paraíba do Sul river acted as barrier to gene flow between populations.Análises citogenéticas foram realizadas em duas populações de Oligosarcus hepsetus provenientes de riachos de margens opostas do rio Paraíba do Sul. O número diplóide foi o mesmo para ambas as populações (2n=50, porém diferenças significativas foram observadas com relação à fórmula cariotípica e distribuição dos sítios de DNAr detectados pela impregnação por prata e pela hibridação "in situ" com sonda 18S. Estes resultados sugerem que a calha principal do rio Paraíba do Sul estaria atuando como uma barreira para o fluxo gênico entre essas populações.

  7. Assessment of stability of ceramics type perovskite, Ba{sub 2}MgWO{sub 6}, submerged in crude oil taken from oil wells of Sergipe - Brazil; Avaliacao da estabilidade de ceramicas tipo perovskita, Ba{sub 2}MgWO{sub 6}, submersas em petroleo cru retirado de pocos do estado de Sergipe - Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Yadava, Y.P.; Sales, D.G.; Lima, M.M.; Ferreira, R.A.S. [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil)], e-mail: daniella_guedes@yahoo.com.br

    2008-07-01

    Oil wells are harsh environments, thus, it is necessary to find materials that are able to resist the weather imposed by these sites. Many of the new technology incorporating ceramic components because their chemical properties, electrical, mechanical, thermal and structural. The ceramics exhibit high hardness and therefore resistant to high pressure, have high melting point, resisting the high temperatures, and make inert nature in hostile environments. The ceramics, type Perovskite Ba{sub 2}MgWO{sub 6}, were submerged in crude oil for thirty days and then examined by X-ray diffraction, optical microscopy and Vickers microhardness to see if there were changes in structural characteristics, microstructural and mechanical properties. This work was evaluated and discussed by these results, the stability of these ceramics when subject to attack by crude oil taken from oil wells of land and sea state of Sergipe, Brazil. (author)

  8. Leitos de assistência hospitalar geral do Vale do Paraíba, Brasil, 1974 Hospital bed availability in the general hospitals in the Paraíba Valley, SP, Brazil, 1974

    OpenAIRE

    Cid Guimarães

    1980-01-01

    Com o objetivo de estabelecer relações entre recursos do Sistema Saúde - leitos - e os pacientes internados, foram estudadas as saídas ocorridas em leitos de assistência hospitalar geral do Vale do Paraíba (Brasil), em 1974. Os resultados permitiram relacionar determinadas variáveis - sexo, idade, procedência do paciente, tipo de tratamento a que foi submetido, fonte financiadora de sua assistência e média de permanência. A análise abrangeu as relações entre as variável entre si e cada uma de...

  9. Isolation of rabies virus from the parotid salivary glands of foxes (Pseudalopex vetulus from Paraíba State, Northeastern Brazil Isolamento de vírus rábico de glândulas salivares parótidas de raposas (Pseudalopex vetulus do Estado da Paraíba, Nordeste do Brasil

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    Maria Luana Cristiny Rodrigues Silva

    2009-09-01

    Full Text Available To determine the presence of rabies virus in the parotid salivary glands, 12 road-killed rabies-positive hoary foxes (Pseudoalopex vetulus were tested by using the fluorescent antibody test (FAT and mouse inoculation test (MIT. All 12 parotid salivary glands were positive for both tests, although in some cases several passages were required. The findings of this study support the importance of the hoary fox as rabies reservoir in the semi-arid region of Paraíba State, Northeastern Brazil.Para determinar a presença de vírus rábico em glândulas salivares parótidas, 12 raposas (Pseudalopex vetulus atropeladas em rodovias e positivas para raiva foram testadas pelo teste de imunofluorescência direta (IFD e teste de inoculação em camundongos (IC. Todas as 12 glândulas salivares parótidas foram positivas em ambos os testes, embora, em alguns casos, várias passagens terem sido necessárias. Os achados do presente trabalho reforçam a importância das raposas como reservatórios de raiva no semi-árido do Estado da Paraíba, Nordeste do Brasil.

  10. Identificação e características culturais de espécies do gênero Aspergillus isoladas de sementes de feijão no Estado da Paraíba Identification and cultural characteristics of Aspergillus species isolated in common bean seeds from Paraíba State, Brazil

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    Vanilde Benicio

    2003-04-01

    Full Text Available A partir de sementes de feijão (Phaseulus vulgaris armazenadas no estado da Paraíba, foram isolados os fungos Aspergillus flavus, A. fumigatus, A. lucknowensis, A.niger, A.ochraceus e A. parasiticus. Os fungos foram identificados com base nas características culturais exibidas em meio de Czapek-Agar e morfológicas através de microscópio ótico composto. No oitavo dia de crescimento em meio de BDA, cada espécie apresentou diferenças quanto à curva de crescimento, taxa de crescimento durante o período de incubação e diâmetro das colônias no oitavo dia de acordo com a procedência das amostras de sementes.The fungi Aspergillus flavus, A. fumigatus, A. lucknowensis, A.niger, A.ochraceus and A. parasiticus were isolated from common bean (Phaseolus vulgaris seeds produced and stored by growers in the State of Paraíba, Brazil. These fungi were identified according to cultural characteristics on Czapek-agar medium and the structures viewed under compound microscope. The development of each fungal species on Potato-Dextrose-Agar (PDA medium presented differences for colony diameter, curve and rate of growth according to the seed samples from which were obtained.

  11. Diversidade de Euglossinae (Hymenoptera, Apidae em dois fragmentos de Mata Atlântica localizados na região urbana de João Pessoa, Paraíba, Brasil Diversity of Euglossinac (Hymenoptera, Apidae in two Atlantic Forest fragments located in the urban area of João Pessoa, Paraíba, Brazil

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    Cleomar Porto Bezerra

    2001-09-01

    Full Text Available The use of fragrances to attract males of Euglossinae bees has been an important tool to increase the knowledge of the group. In the Northeastern of Brazil, studies on euglossine bees are still uncommon, mainly in urban areas. The goals of this study are to identify the Euglossinae species composition, to know the diversity and the community structure of Euglossinae species, verify their preferences for different fragrances and evaluate the phenology of these species, in two Atlantic Forest fragments of the city of João Pessoa, Paraíba state, Brazil. Bees were sampled at 15 days intervals, over the course of one year, from 8:00 to 17:00 hours, through the use of traps baited with seven types of fragrances. In both areas, 1082 individuals belonging to nine species were sampled. None significant difference of diversity and relative abundance of bees between fragments were observed. Eucalyptol was the most attractive fragrance. Bees were more abundant between 8:00 and 9:00 AM. Visits to the fragrances were more frequent from the middle of dry season to the beginning of the rainy season and positively correlated with the monthly mean temperature. Most species of bees visited all the baits over the year, but the number of attracted males was highest in April.

  12. Small distances, great differences: a case study involving the biomass of reef seaweeds and fishes on the coast of Paraíba, Northeast Brazil

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    Cláudio Luís Santos Sampaio

    2007-06-01

    Full Text Available Shallow reefs on the coast of Paraíba state are poorly known. An analysis at three stations (Prot = protected; SP = semi-protected; Exp = exposed with different gradients of wave exposure revealed significant (p < 0.05 differences related to the biomass of seaweed (Prot = SP ≠ Exp. Station Exp with 9.97g (23% presented the lowest value followed by SP with 10.93 (25% and Prot with 22.55g (52%. The values suggest that the biomass of seaweeds is inversely related to the gradative higher exposure to waves. Additionally, a first record of Wrangelia argus (Montagne Montagne was made for the coast of Paraíba.

  13. Impacts of irrigated rice production on the water quality of the Paraíba do Sul river - Taubaté region, SP, Brazil

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    José Geanini Peres

    2010-04-01

    Full Text Available The urban, industrial and agricultural growth of the cities across Taubaté region influences water quality of Paraíba do Sul river. Due to the importance for human life quality, economic development and environmental sustainability it is necessary to keep water quality control of this river. In this study, physical, chemical and biochemical attributes of rice cultivation were analyzed in the Paraiba do Sul river water in the Taubaté region. The analyses were made during the rice growing season. The results showed that the practice of rice cultivation increased the pollution level of Paraíba do Sul river. Due to rice cultivation, fertilizers and organic matter were introduced in the river waters demonstrating that fertilization practices require rigid control for wetland rice production.

  14. Clinical, pathological, and immunohistochemistry characterization of toxoplasmosis in dogs with distemper in the semiarid region of Paraíba, Brazil

    OpenAIRE

    Maria Talita Soares Frade; Lisanka Ângelo Maia; Rachel Livingstone Felizola Soares Andrade; Rodrigo Cruz Alves; Elise Miyuki Yamasaki; Rinaldo Aparecido Mota; Antônio Flávio Medeiros Dantas

    2015-01-01

    The objective of this study was to describe the clinical, pathological, and immunohistochemistry characteristics of five cases of toxoplasmosis, an infection often associated with distemper in dogs. From January 2000 to December 2012, a retrospective study was performed analyzed dogs with distemper in the semiarid region of Paraíba. We evaluated this sample to focus on individuals who presented with concomitant structures in protozoa characteristics, and performed immunohistochemistry (IHC) t...

  15. Anticorpo contra o vírus C da hepatite em pacientes sob programa de hemodiálise em Salvador, BA, Brasil Anti-HCV in patients undergoing hemodialysis in Salvador, BA, Brazil

    OpenAIRE

    Santana, Genoile Oliveira; Cotrim, Helma P.; MOTA Eduardo; Paraná, Raymundo; Nelma Pereira SANTANA; Luiz LYRA

    2001-01-01

    Racional - A prevalência da infecção pelo vírus da hepatite C em pacientes sob programa de hemodiálise tem sido amplamente variável. Objetivos -- Determinar a prevalência do anticorpo contra o vírus C da hepatite (anti-VHC) em pacientes sob hemodiálise em Salvador, BA e sua associação com transfusão de sangue, duração de hemodiálise e elevação de alaninoaminotransferase. Métodos - Durante um período de 17 meses, foram avaliados todos os pacientes em programa de hemodiálise, totalizando 395 in...

  16. Alterações histológicas em placas ósseas do peixe cascudo Rineloricaria strigilata (Hensel (Teleostei, Loricariidae e sua freqüência no lago Guaíba, Rio Grande do Sul, Brasil Description of histological abnormalities in the bony plates of the loricariid catfish Rineloricaria strigilata (Hensel (Teleostei, Loricariidae and analysis of its frequency in the lake Guaíba, Rio Grande do Sul, Brazil

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    Fábio Flores-Lopes

    2001-09-01

    Full Text Available Little information is available about natural populations of fishes exposed to polluted waters in Brazil. Contaminants may be lethal or predispose fishes to sickness, being the analysis of aquatic organisms a good indicator of environmental quality. The violinha, Rineloricaria strigilata (Hensel, 1868, is a common loricariid catfish in the Guaíba lake basin, Rio Grande do Sul, Brazil, and has been selected as a bioindicator for being resident, occurring in more than 50% of the samples, and by showing externally detectable neoplasies. These are characterized by its dark pigmentation, bony plates hypertrophy, and hypertrophy and irregular arrangement of the odontodes. Histology showed hypertrophied epitelial tissues, with an increased number of secretory cells, blood cells, and melanina pigments, giving the dark appearance to the neoplasm. Observed frequencies of neoplasm were higher in lake Guaíba than in comparativo samples. Inside lake Guaíba, a pattern of distribution of neoplasm was observed, with the absence of neoplasm in fishes at the collected site that receives water from rio Jacuí, and frequencies of 3.04 to 16.81% in the collection localities in front of Porto Alegre and downstream localities, that receive water from rio Jacuí, rio dos Sinos and rio Gravataí, that drain urban and industrial area of Porto Alegre and neighborhood cities.

  17. Fishes from the Corumbá Reservoir, Paranaíba River drainage, upper Paraná River basin, State of Goiás, Brazil

    OpenAIRE

    C. S. Pavanelli; Graça, W. J.; C. H. Zawadzki; H. A. Britski; Vidotti, A. P.; Avelino, G. S.; Veríssimo, S.

    2007-01-01

    The Corumbá Reservoir is located in CorumbáRiver, a tributary to the right bank of ParanaíbaRiver, upper Paraná River basin. Fish werecollected monthly, from March 1996 to February2000, in 17 sampling stations along CorumbáReservoir and its influence area, using gill nets,casting nets, electrofishing and long lines.Considering the entire period, 119 fish specieswere colleted, which belong to seven Orders, 26Families, and 78 Genera. Among them, fivespecies are considered endemic to Corumbá Riv...

  18. Impacts of irrigated rice production on the water quality of the Paraíba do Sul river - Taubaté region, SP, Brazil

    OpenAIRE

    José Geanini Peres; Antonio Claudio Testa Varallo; Claudinei Fonseca Souza; Murilo Henrique Andrade

    2010-01-01

    The urban, industrial and agricultural growth of the cities across Taubaté region influences water quality of Paraíba do Sul river. Due to the importance for human life quality, economic development and environmental sustainability it is necessary to keep water quality control of this river. In this study, physical, chemical and biochemical attributes of rice cultivation were analyzed in the Paraiba do Sul river water in the Taubaté region. The analyses were made during the rice growing seaso...

  19. Hydrogeologic monitoring of the Paraíba do Sul river floodplain area subject to sand mining in the Tremembé municipality, SP, Brazil

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    Getulio Teixeira Batista

    2011-12-01

    Full Text Available To characterize the geological, hydrogeological, hydrochemical, and hydrobacterial aspects of the surface and groundwater in the floodplain of the Paraíba do Sul river in Tremembé municipality, the water levels of the Quaternary sedimentary aquifer experimental site was monitored based on four wells and eight associated piezometers with daily measures of water levels in continuous operation since December 3, 2009. In addition, data from a modular weather station in operation since March 2010 and data from the quality of surface water and groundwater have been analyzed in the period between March 2010 and March 2011. The water balance between April 2010 and March 2011 was estimated to verify the periods of water deficiency and excess. Data loggers installed in the piezometers enabled daily groundwater levels monitoring to establish the influence of the Paraíba do Sul river in the water levels of the Quaternary sedimentary aquifer and also they allowed the determination of the water loss to the atmosphere. A hydrogeological model with simplified equations, based on hydraulics parameters obtained in the wells pump tests, was implemented to calculate the amount of daily evapotranspiration and the average distance of the water loss from the wells to the atmosphere. An evaporation rate of 83.4 m3/h from the open-pit sand mine located at 212.2 m and of 89.2 m3/h for the one at 885.0 m average distance from the monitoring wells were observed. Chemical and bacteriological analysis involving multiple parameters were performed in the period from March 2010 to March 2011 in groundwater collected in wells, in the open-pit mines and in the waters of the Paraíba do Sul river. The results allowed to observe the influences of the Paraíba do Sul river as well as the contamination from fertilizers and pesticides from the agriculture practiced in the floodplain area on the quality of the groundwater.

  20. Occurrence of anti-Brucella abortus and anti-Leptospira spp. antibodies in buffaloes from Paraíba state, Northeastern Brazil

    OpenAIRE

    Arthur Willian de Lima Brasil; Roberta Nunes Parentoni; Diego Figueiredo Costa; Carla Lauise Rodrigues Menezes Pimenta; Rafael Pádua Araújo; Antônio Bruno Guimarães Leal; Clebert José Alves; Sérgio Santos de Azevedo

    2015-01-01

    The objective of this study was to determine the frequency of animals that tested positive for brucellosis and leptospirosis and the risk factors for these diseases in the State of Paraíba. A total of 136 buffaloes from 14 herds were examined. For brucellosis, we used the buffered acidified plate antigen (BAPA) test as screening method and 2-mercaptoethanol as confirmatory test. For leptospirosis, we conducted a microscopic agglutination test (MAT), with a cut-off point of 1:100. Of the anima...

  1. Infestation and dispersal speed of dactylopius opuntiae cockerell on giant cactus pea, 1896 in the State Of Paraíba, Brazil

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    Carlos Henrique de Brito

    2009-03-01

    Full Text Available In 2001 was introduced in the State of Paraíba, the exotic pest Dactylopius opuntiae, commonly known as carmine cochineal, which already undertaken the cultivation of the giant cactus pear (Opuntia ficus-indica in more than fifty cities. This study aimed to evaluate the infestation and dispersal speed of D. opuntiae at the field conditions, to establish a level of pest control. The research was performed in a field of giant cactus pear with twelve months cropped, artificially infested with the carmine cochineal in Lagoa Seca Experimental Station, Paraíba. The trial used was the completely randomized design (CRD consisting of ten treatments (giant cactus pear plants and ten repetitions (infested cladodes. Data were submitted to analysis of variance, using the ASSISTAT Application 7.5 Beta (2008. The results showed that ten colonies/cladodes caused infestation and a high dispersion of the insect. After 60 days the infestation and spread of colonies reached average value 171 colonies per plant. The dispersal of migrants nymphs are carried by wind from the cladodes to cladodes and plant to plant. From these results we can establish that the control level to carmine cochineal is less than 10 colonies/plant and the combat should be started immediately after detection of the first colonies of the pest in cactus pear crop.

  2. Occurrence of anti-Brucella abortus and anti-Leptospira spp. antibodies in buffaloes from Paraíba state, Northeastern Brazil

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    Arthur Willian de Lima Brasil

    2015-07-01

    Full Text Available The objective of this study was to determine the frequency of animals that tested positive for brucellosis and leptospirosis and the risk factors for these diseases in the State of Paraíba. A total of 136 buffaloes from 14 herds were examined. For brucellosis, we used the buffered acidified plate antigen (BAPA test as screening method and 2-mercaptoethanol as confirmatory test. For leptospirosis, we conducted a microscopic agglutination test (MAT, with a cut-off point of 1:100. Of the animals examined, two [1.5%; 95% CI = 0.4%–5.2%] were positive for brucellosis, and 38 (27.9%; 95% CI = 21.1%–36.0% were positive for leptospirosis. The brucellosis-positive animals were from two (14.3% herds, while nine (64.3% herds had leptospirosis-seropositive animals. The more frequent Leptospira spp. serotypes were Bratislava, Pomona, and Canicola. We concluded that leptospirosis was widespread in buffaloes in the state of Paraíba and suggested that breeding alongside horses and pigs might be na important factor in the spread of leptospirosis-positive animals. The presence of brucellosispositive animals indicated the possibility of negative-impacting measures on disease control in bovines, and it is therefore recommended that greater attention be given to these animals for brucellosis control.

  3. Risk factors associated with Toxoplasma gondii seroprevalence in goats in the State of Paraíba, Brazil Fatores de risco associados à soroprevalência de Toxoplasma gondii em caprinos do Estado da Paraíba, Brasil

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    Carolina de Sousa Américo Batista Santos

    2012-12-01

    Full Text Available A cross-sectional study based on planned sampling was carried out to determine flock-level risk factors associated with Toxoplasma gondii antibody prevalence in dairy goat flocks in a semiarid region of northeastern Brazil. Serum samples from 975 adult dairy goats from 110 flocks were examined by indirect immonufluorescent antibody test (IFAT, using cut-off point at 1:64 dilution. From the 110 flocks, 77 presented at least one seropositive animal, corresponding to a prevalence of 70% (95% CI: 60.5-78.4%. Out of the 975 animals, 177 (18.1%; 95% CI = 15.8-20.7% tested positive. The presence of toxic plants (OR = 5.11; P = 0.045 and the fact that goat breeding is not the main activity on the farm (OR = 3.34; P = 0.014 were identified as risk factors. The results of the present study showed evidence of the presence of T. gondii infection in dairy goats from a semiarid region of northeastern Brazil using planned sampling. Further studies are needed to elucidate the importance of the identified risk factors in the epidemiology of the infection.Foi conduzido um estudo transversal baseado em amostragem planejada com o objetivo de determinar fatores de risco associados com a prevalência de anticorpos contra Toxoplasma gondii, em rebanhos de caprinos leiteiros, em uma região semiárida do Nordeste do Brasil. Amostras de soro de 975 caprinos leiteiros adultos, procedentes de 110 propriedades, foram examinadas pela reação de imunofluorescência indireta (RIFI, utilizando-se como ponto de corte a diluição 1:64. Das 110 propriedades, 77 apresentaram pelo menos um animal soropositivo, correspondendo a uma prevalência de 70% (IC 95%: 60,5-78,4%. Dos 975 animais, 177 (18,1%; IC 95% = 15,8-20,7% foram positivos. Apesar da presença de plantas tóxicas (OR = 5,11; P = 0,045 e da caprinocultura não ser a principal atividade na propriedade (OR = 3,34; P = 0,014, foram identificados como fatores de risco. Os resultados do presente estudo mostraram uma evid

  4. Extraction of vanadium from campo Alegre de Lourdes (BA, Brazil) Fe-Ti-V ore by partial reduction/magnetic concentration/salt roasting/hot water leaching

    International Nuclear Information System (INIS)

    A process under development at COPPE/UFRJ to rocover vanadium from a titaniferous magnetite type ore from Campo Alegre de Lourdes (Bahia, Brazil), throxgh magnetizing roasting/magnetic concentration/ salt roasting/hot water leaching, is described. The results of the experimental work carried cut up to present are in qualitative agrement with those of othar studies on salt roasting/water leaching of titaniferous magnetites. Is is discussed the existing relationship between the maximum percentags of vanadium extraction in the leaching and the salt roasting conditions. (author)

  5. Characterization of a clay from Vitoria da Conquista, Bahia, Brazil, by thermal analysis; Caracterizacao de uma argila de Vitoria da Conquista, BA, por analise termica

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, O.M.; Zandonadi, A.R.; Martins, M.V. Surmani; Carrio, J.A.G.; Munhoz Junior, A.H. [Universidade Presbiteriana Mackenzie, Sao Paulo, SP (Brazil)

    2010-07-01

    Kaolinitic clays are vastly used in ceramic industry. Light coloration burned clays are very useful in the coatings production because of their aesthetic. In this work clay material from Vitoria da Conquista (south-west Bahia, Brazil) was characterized by various techniques. Differential Scanning Calorimetry (DSC) shows a kaolinite characteristic curve with an endothermic peak at 492 deg C, which corresponds to the kaolinite - metakaolinite transformation. Transformation alpha to beta quartz is characterized by a 573 deg C peak. The samples were also characterized by water absorption and x rays powder diffraction. The 1100 deg C burned samples were tested by rupture tension with acceptable results. (author)

  6. Characterization of victims of aggression and transportation accidents treated at the Forensic Medicine and Dentistry Institute - Campina Grande, Paraíba, Brazil - 2010

    OpenAIRE

    Sergio d'Avila; Ana Cristina Campos; Gigliana Maria Sobral Cavalcante; Carlos Jose de Paula Silva; Lorena Marques da Nóbrega; Efigenia Ferreira e Ferreira

    2015-01-01

    The objective of this cross-sectional census study was to characterize agression and land-based transport accidents in a city in the Northeast of Brazil. Data was analyzed from live victims who were treated at a forensic service (N = 2.379). In the descriptive analysis, the majority of events were represented by aggression (71.6%); which occurred on weekdays (65%), with 35.1% at night. Trauma occurred to the whole body (63.6%) and to soft tissue (74.2%). On the basis of multiple correspondenc...

  7. Distribution and population structure of the fish Cyphocharax gilbert (Characiformes: Curimatidae) in the lower Paraíba do Sul River, Brazil.

    Science.gov (United States)

    Menezes, M S; Caramaschi, E P

    2007-01-01

    The distribution and population structure of Cyphocharax gilbert in four areas of the lower Paraíba do Sul River and its major tributaries (22 degrees S, 43 degrees W) were analyzed between March 1989 and February 1990. The species was common throughout the area, preferring major rivers with high turbidity and sand-mud substrates and range of length and size of specimens found varied depending on the particular characteristics of the site. A predominance of females was found in only area. Nevertheless, in all areas the bimonthly analysis showed preponderance of one of the sexes in periods before or after spawning. Males prevailed in shorter length classes and females in longer ones. There was a prevalence of young in one area that probably was used as a growth and feeding zone. v. PMID:19086403

  8. Caloric density of aquatic macrophytes in different environments of the Baía river subsystem, upper Paraná river floodplain, Brazil

    Directory of Open Access Journals (Sweden)

    Célia de Almeida Lopes

    2006-09-01

    Full Text Available The aim of this work was to determine the caloric density of leaves, stems and roots of aquatic macrophytes in different environments of the Baía subsystem (Baía river and Fechada and Guaraná lagoons on the Upper Paraná river floodplain, in addition to identify the variability between ecological groups. Samplings of Eichhornia crassipes, Salvinia spp, Pistia stratiotes, Eichhornia azurea, Polygonum sp, Cyperaceae and Poaceae were carried out in February 2003. Spatial differences in the caloric densities were not observed for these plants. Caloric density values varied from 1906.9 cal/g dry weight (root to 4675.0 cal/g dry weight (leaf. However, significant differences between the caloric content averages of the vegetative structures were observed only for Polygonum sp and Salvinia spp. In relation to the ecological groups, the highest average value was verified for the emergent macrophytes (3529.7 ± 722.5, which were significantly different from the floating ones (3056.5 ± 571.0. There was no difference between the sites included in the subsystem when the caloric densities were compared.O presente trabalho teve por objetivo determinar a densidade calórica de folhas, caules e raízes de macrófitas aquáticas, em diferentes ambientes do subsistema Baía (Rio Baía e lagoas Fechada e do Guaraná na planície de inundação do alto rio Paraná, além de identificar a variabilidade entre grupos ecológicos. As amostragens foram realizadas em fevereiro de 2003, sendo coletadas amostras de diferentes macrófitas, Eichhornia crassipes, Salvinia spp, Pistia stratiotes, Eichhornia azurea, Polygonum sp, Cyperaceae e Poaceae. Diferenças espaciais nas densidades calóricas não foram observadas para as plantas estudadas. Os valores de densidade calórica variaram de 1906,9 cal/g de peso seco (raiz a 4675,0 cal/g de peso seco (folha. Entretanto, diferenças significativas entre as médias dos conteúdos calóricos das estruturas vegetativas foram

  9. Radionuclides incorporated by inhabitants of surrounding Brazilian uranium mines

    International Nuclear Information System (INIS)

    Full text: Brazil has the 6th largest global geological reserve of uranium, with the main reserve in Santa Quiteria - CE still not under exploration. Currently, uranium mining and processing in Brazil only occur near to the city of Caetite - BA. Several Non-Governmental Organizations claim that uranium mining in this region is polluting and may jeopardize the human health and safety and the environment. However, those in charge of the complex extraction and production of 'yellow cake' for generating fuel to the nuclear power plants reject these allegations. U-238 may be deposited in the skeleton by replacing the calcium, thus it is possible to estimate its incorporation by determining its concentration in the teeth. This study aimed to identify potential problems caused by mining to the population of Caetite, analyzing U-238 contained in samples of teeth extracted for orthodontic reasons from Caetite residents. The concentration of thorium and potassium incorporated were also determined by ICP-MS, as well the cumulative dose of radiation received by this population was estimated. For comparison sake, the same analysis was performed in samples from Santa Quiteria and Aracaju - SE (used as a control area). The doses estimated were compared to doses obtained with EPR spectra of the same samples. The accumulated amount of radioisotopes in the teeth of the population of Caetite is probably due to natural origin, thus it is not possible to state that the mining process in Caetite increases pollution or radiation exposure in a meaningful way. (author)

  10. Influence of tides and winds on fishing techniques and strategies in the Mamanguape River Estuary, Paraíba State, NE Brazil.

    Science.gov (United States)

    Bezerra, Dandara M M; Nascimento, Douglas M; Ferreira, Emmanoela N; Rocha, Pollyana D; Mourão, José S

    2012-09-01

    This work was carried out in two small fishing communities, Barra de Mamanguape and Tramataia, Northeastern Brazil. The aim was to study these traditional fishermen's knowledge and perception about tide and wind classifications, as well as their fishing strategies and techniques. Our research methodology involved various techniques: free interviews and semi-structured ones, guided tours and direct observations. The results obtained show the fishermen's classification of the tides according to the phases of the moon: 'breaking tide', 'flushing tide', 'dead tide' and 'big tide' designated technically these last as neap tide and spring tide, respectively. Wind is also an essential factor for the fishermen to make successful catches, and they classify it according to direction: North, South, East, Southeast, Southwest, Northeast and Northwest. The data show that fishermen's knowledge can also be useful in devising plans for management and conservation studies for this estuary. PMID:22801380

  11. Flood-dominated fluvio-deltaic system: a new depositional model for the Devonian Cabeças Formation, Parnaíba Basin, Piauí, Brazil

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    Luiza Corral M.O. Ponciano

    2009-12-01

    Full Text Available The depositional model of the Cabeças Formation is re-evaluated in the context of the Devonian paleogeography of the Parnaíba Basin, and with particular reference to similarities between the formation's facies associations on the eastern border of the basin and the flood-dominated fluvio-deltaic system facies that have been discussed in recent literature. The widespread occurrence and nature of sigmoidal clinoforms (with asymptotic cross-stratification and climbing ripples of the Cabeças Formation are here considered as strong evidence of flood-influenced depositional settings. Sandy strata of the Passagem Member, in the vicinity of Pimenteiras and Picos (Piauí State, are interpreted as the distal part of fine-grained mouth-bar deposits interbedded with delta-front sandstone lobes showing hummocky cross-stratification. Richly fossiliferous levels, with diverse megainvertebrates and plant cuticles, occur within the delta-front lobes and the distal mouth-bar deposits, reflecting continuation of shallow marine conditions.O modelo deposicional da Formação Cabeças é reinterpretado no presente estudo com base no contexto paleogeográfico da Bacia do Parnaíba durante o Devoniano e na similaridade entre as fácies encontradas na Formação Cabeças com as fácies características dos sistemas flúvio-deltaicos dominados por inundações. O tipo das clinoformas sigmoidais (com estratificação cruzada assintótica e laminação cruzada cavalgante, e a sua predominância na Formação Cabeças, são consideradas como as principais evidências da influência de inundações nesta unidade. Depósitos do Membro Passagem, localizados nos arredores das cidades de Pimenteiras e Picos, são interpretados como o componente distal de um tipo de barra de desembocadura com a predominância de arenitos finos a conglomeráticos, intercalados com lobos arenosos tabulares de frente deltaica com estratificação cruzada hummocky. Diversos intervalos fossil

  12. [Vulnerability of management of waste from health services in João Pessoa, State of Paraíba (Brazil)].

    Science.gov (United States)

    Ramos, Yoly Souza; Pessoa, Yldry Souza Ramos Queiroz; Ramos, Yluska de Souza; Netto, Fernando de Barros Araújo; Pessoa, Carlos Eduardo Queiroz

    2011-08-01

    The discussion in the academy on solid urban waste residues (UWR) is analyzed, with health service waste (HSW) being an integral part of UWR, not necessarily in terms of the amount generated, but due to the risk potential to collective and environmental health. The scope of the study was to verify the vulnerability of UWR handling in primary, secondary and tertiary healthcare units in João Pessoa in the state of Paraíba. This involved a quantitative, exploratory and descriptive investigation of the handling of UWR, using a checklist and analytical evaluation of the vulnerability of HSW handling for data collection. It was detected that 21.05% of the establishments failed to separate hazardous waste, 26.34% did not standardize plastic disposal bags, and 47.37% of the workers responsible for collection were not trained to handle HSW. It was concluded that the vulnerability of HSW handling in João Pessoa in the order of 48.02%, was significant, potentially contributing to the deterioration of environmental and collective health and leading to a public health problem. PMID:21860955

  13. Insegurança alimentar das famílias residentes em municípios do interior do estado da Paraíba, Brasil Household food insecurity in municipalities of the Paraíba State, Brazil

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    Rodrigo Pinheiro de Toledo Vianna

    2008-08-01

    Full Text Available OBJETIVO: Identificar a prevalência de segurança alimentar e dos diferentes graus de insegurança alimentar entre famílias residentes em 14 municípios da Paraíba e a relacionar com o perfil social, demográfico e econômico destas famílias. MÉTODOS: Realizou-se inquérito populacional no qual 4.533 famílias foram entrevistadas. Utilizou-se questionário para avaliar as características sócio-demográficas, juntamente com a Escala Brasileira de Insegurança Alimentar. Foram calculadas medidas de prevalência e verificada a associação entre as variáveis do estudo pelo teste qui-quadrado. Ajustou-se um modelo de regressão logística para examinar a associação dos fatores de risco à segurança e à insegurança alimentar. RESULTADOS: Observou-se prevalência de 11,3% de insegurança alimentar grave, 17,6% de insegurança moderada, 23,6% de insegurança leve; 47,5% da população foi classificada em situação de segurança alimentar. As áreas rurais apresentaram pior situação. O principal motivo referido para insegurança alimentar foi a falta de dinheiro para aquisição de comida. A regressão logística final foi composta por três variáveis: baixa renda familiar per capita (R$25,00 versus R$300,00, Odds Ratio=19,10, moradia precária (Odds Ratio=1,98 e falta de água permanente (Odds Ratio=1,38. As famílias do menor estrato de renda apresentaram menor prevalência de insegurança alimentar grave, quando incluídas em programas sociais. CONCLUSÃO: A prevalência de insegurança alimentar foi elevada. O instrumento utilizado demonstrou ser uma ferramenta importante de avaliação da situação de segurança alimentar e útil para o monitoramento de políticas públicas, como é o caso dos programas sociais que integram a estratégia Fome Zero do Governo Federal.OBJECTIVE: The objective of this study was to identify the prevalence of household food security in 14 municipalities of Paraiba State and examine its association with

  14. Abelhas (Hymenoptera: Apoidea visitantes das flores de urucum em Vitória da Conquista, BA Bees (Hymenoptera: Apoidea visitors of the annatto flowers in Vitória da Conquista, Bahia State, Brazil

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    Augusto Jorge Cavalcante Costa

    2008-04-01

    Full Text Available O urucum é um arbusto da família Bixaceae, utilizado na fabricação de corantes naturais para a indústria alimentícia e cosmética. No Brasil, somente nos últimos 15 anos, houve maior interesse pelo cultivo, pois se tornou uma alternativa agrícola promissora. O presente trabalho teve por objetivo identificar as abelhas visitantes das flores do urucuzeiro em Vitória da Conquista, BA. O trabalho foi conduzido no campo experimental da UESB, em uma lavoura do tipo cultivado Peruana Paulista. A coleta das abelhas visitantes foi feita na época principal de floração do urucueiro: março/abril, das 6h às 18h. Foram coletadas 3019 abelhas de 22 espécies, com predominância na visitação das 8h às 14h em relação ao número de indivíduos e número de espécies capturadas. As espécies mais freqüentes foram: Trigona spinipes (Fabricius, Apis mellifera L., Schwarziana quadripunctata (Lepeletier e Tetragonisca angustula (Latreille. Espécies de maior porte, como Xylocopa frontalis (Olivier, Bombus morio (Swederus e Eulaema nigrita Lepeletier, consideradas como eficientes na polinização da cultura do urucum, não foram abundantes neste estudo.Annatto is a shrub from Bixaceae family, which natural pigment (annatto is widely used in food and cosmetic industries. In Brazil, the interest for this crop started in the last fifteen years, once it became a promising agricultural alternative. This study was aimed at identifing visitor bees of annatto flowers at the agriculture region of Vitória da Conquista (BA. The research was carried out in the experimental field of UESB, in an experimental plot planted with the cv. Peruana Paulista. The visitor bees were collected during the main blooming period: March/April, between 6:00h and 18:00h. A total of 3,019 bees from 22 species was collected, with higher visitation during the period from 8:00 to 14:00h, regarding the number of individuals and species. The species most frequent were Trigona spinipes

  15. Geostatistical and stratigraphic analysis of deltaic reservoirs from the Reconcavo Basin, Brazil; Analise estratigrafica e geoestatistica de reservatorios deltaicos da Bacia do Reconcavo (BA)

    Energy Technology Data Exchange (ETDEWEB)

    Soares, Carlos Moreira

    1997-07-01

    This study presents the characterization of the external geometry of deltaic oil reservoirs, including the description of their areal distribution using geo statistic tools, such as variography and kriging. A high-resolution stratigraphic study was developed over a 25 km{sup 2} area, by using data from 276 closely-spaced wells of an oil-producer field from the Reconcavo Basin, northeastern Brazil. The studied succession records the progressive lacustrine transgression of a deltaic environment. Core data and stratigraphic cross sections suggest that the oil reservoirs are mostly amalgamated, delta-front lobes, and subordinately, crevasse deposits. Some important geometrical elements were recognized by the detailed variographic analysis developed for each stratigraphic unit (zone). The average width for the groups of deltaic lobes of one zone was measured from the variographic feature informally named as hole effect. This procedure was not possible for the other zones due to the intense lateral amalgamation of sandstones, indicated by many variographic nested structures. Net sand krigged maps for the main zones suggest a NNW-SSE orientation for the deltaic lobes, as also their common amalgamation and compensation arrangements. High-resolution stratigraphic analyses should include a more regional characterization of the depositional system that comprises the studied succession. On the other hand, geostatistical studies should be developed only after the recognition of the depositional processes acting in the study area and the geological meaning of the variable to be treated, including its spatial variability scales as a function of sand body thickness, orientation and amalgamation. (author)

  16. Infestation rate of the mite Varroa destructor in commercial apiaries of the Vale do Paraíba and Serra da Mantiqueira, southeastern Brazil

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    F.A. Pinto

    2015-04-01

    Full Text Available Nos últimos anos, grandes perdas de colônias de abelhas melíferas vêm sendo registradas em várias regiões do mundo. Contudo, os motivos desse acontecimento permanecem obscuros. O ácaro ectoparasita Varroa destructor Anderson e Trueman (Acari: Varroidae pode ser um dos responsáveis por esse fato, principalmente como vetor de vírus. Neste estudo, avaliaram-se as taxas de infestação (TIs do ácaro V. destructor em abelhas africanizadas Apis mellifera L. (Hymenoptera: Apidae e correlacionaram-se os dados com as médias de temperatura de 16 municípios das regiões do Vale do Paraíba e da Serra da Mantiqueira (São Paulo, Brasil, onde a apicultura comercial atua de maneira significativa. Em cada município, um apiário comercial foi selecionado para coleta de amostras de três colônias populosas (padrão Langstroth, totalizando 48 colônias amostradas. Aproximadamente 300 abelhas adultas localizadas na área de cria foram coletadas em cada colônia. As TIs variaram de 0.0 a 5.5%, níveis considerados baixos para causar danos significativos às colônias. As TIs mais baixas foram encontradas em municípios com clima mais ameno durante a estação avaliada (verão. Adicionalmente, cofatores como variações na disponibilidade de alimento entre os municípios e a variabilidade genética das abelhas podem interagir na interação entre parasita e hospedeiro. A variação nas TIs entre os municípios indica que, mesmo presente, a tolerância das abelhas africanizadas ao varroa pode variar drasticamente em uma pequena região, devido à dinâmica multifatorial de infestação do ácaro.

  17. Hydrogeological characteristics of the Paraíba do Sul river flood plains: a case study of a mining area in the Tremembé municipality, SP, Brazil

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    Marcelo dos Santos Targa

    2010-12-01

    Full Text Available The sand mining activity in the São Paulo part of the Paraíba do Sul River Valley started in the 1950s, in the area of Jacareí municipality, located in the Southwestern part of the basin. From there, it advanced by the neighboring municipalities, fostered by urbanization and industrialization processes, especially of São Paulo Metropolitan Region. The lack of detailed hydrogeological studies in this area motivated this study that had the objective of verifying the hypothesis that sand mining pits interfere on the quality and storage of the water in the quaternary sedimentary aquifer. This study focused specifically in the eastern part of the Tremembé Municipality, São Paulo State, in a mining place called “Mineração Paraíso”. The investigation involved infiltration and flow tests, laboratory analyses of soil physical parameters and estimation, water quality indices and infrastructure construction for equipment installation including piezometers, dynamic penetration tests – (SPT - Standard Penetration Test, wells opening and office analyses. The soil physical parameters analyses revealed high porosity (66% in the friable soils. This in addition to the high levels of transmissivity (15.5 m2/h measured in Well 1 and 33 m2/h in Well 3, obtained from the flow test, increases the speed of the transportation of solutes including bacteria, to the underground water. Results of the granulometric analyses showed that the sand mining technique is not only predatory, but also inefficient, since the sand at the bottom of the pit is left unexploited, as well as the bentonite clay found in the deeper layers. According to the penetration tests (SPT, the aquifer has an average thickness of 5.5 m and an upper layer of impermeable organic clays that confine the sand deposits. Furthermore, an aquiclude composed of green bentonitic clays was identified just below the confined layer. However, it is necessary to point out that the confinement condition

  18. Effects of the proximity from an industrial plant on fish assemblages in the rio Paraíba do Sul, southeastern Brazil

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    Benjamin Carvalho Teixeira Pinto

    2006-06-01

    Full Text Available This work aims to analyze changes in the fish assemblages along a longitudinal reaches of the rio Paraíba do Sul, one of the most used Brazilian aquatic systems, to assess the river "health" and to identify eventual recovery trends. Standardized monthly samplings were carried out at six sites, from October 1997 to September 1999, using casting, sieves, seine and gill nets. Three zones were searched: upstream (Z I, downstream (Z III and nearby the source of pollution (Z II. Three univariate distribution methods were used: ABC (abundance-biomass curves, K-dominance curves, and geometric class's distribution. Additionally, cluster analysis was applied to detect eventual patterns. The ABC and K-dominance curves showed Z II with evident indication of stress in both yearly cycles, followed by Z III and Z I. Few rare species and absence of common species in Z I, presence of common and abundant species, mainly opportunist, in Z II, and the highest number of rare species in Z III, was the overall pattern showed by geometric class. Number of fish was higher at Z II, while number of species did no change significantly among zones. Cluster analysis separate Z II samples from Z I and III. All the three univariate methods showed evident signals of stress at Z II, which showed indication of organic enrichment as expressed in the high abundance of common species, although physicochemical variables (ammonia, nitrogen, total phosphorous and DBO have increased slightly from Z1 to Z III. A lesser stress condition was shown at the downstream zone (Z III, indicating the river recovery capacity. The use of biological indicators in this study proved to be a better tool to assess non-point sources pollution when compared to traditional physicochemical measurements.Objetiva-se no presente trabalho, analisar mudanças nas assembléias de peixes ao longo de um trecho longitudinal do rio Paraíba do Sul, um dos sistemas aquáticos mais usados do Brasil, para avaliar a "sa

  19. Influence of tides and winds on fishing techniques and strategies in the Mamanguape River Estuary, Paraíba State, NE Brazil

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    Dandara M.M. Bezerra

    2012-09-01

    Full Text Available This work was carried out in two small fishing communities, Barra de Mamanguape and Tramataia, Northeastern Brazil. The aim was to study these traditional fishermen's knowledge and perception about tide and wind classifications, as well as their fishing strategies and techniques. Our research methodology involved various techniques: free interviews and semi-structured ones, guided tours and direct observations. The results obtained show the fishermen's classification of the tides according to the phases of the moon: 'breaking tide', 'flushing tide', 'dead tide' and 'big tide' designated technically these last as neap tide and spring tide, respectively. Wind is also an essential factor for the fishermen to make successful catches, and they classify it according to direction: North, South, East, Southeast, Southwest, Northeast and Northwest. The data show that fishermen's knowledge can also be useful in devising plans for management and conservation studies for this estuary.Este trabalho foi desenvolvido junto a duas comunidades de pescadores artesanais: Barra de Mamanguape e Tramataia, Nordeste do Brasil. O objetivo foi estudar o conhecimento e a percepção dos pescadores artesanais sobre a classificação das marés e dos ventos bem como as técnicas e estratégias de pesca. A metodologia empregada envolveu várias técnicas: entrevistas livres, entrevistas semiestruturadas, turnês guiadas e observação direta. Os resultados obtidos junto aos pescadores mostraram a classificação das marés de acordo com as fases lunares em: 'maré de quebramento', 'maré de lançamento', 'maré morta' e 'maré grande', designadas tecnicamente estas últimas como maré de quadratura e maré de sizígia, respectivamente. O vento é também um fator essencial no sucesso da pescaria, eles o classificam de acordo com a direção: Norte, Sul, Leste, Sudeste, Sudoeste, Nordeste, Noroeste. Os dados obtidos nesta pesquisa mostraram que o conhecimento dos pescadores

  20. Magnitude, distribuição espacial e tendência da anemia em pré-escolares da Paraíba Magnitude, geographic distribution and trends of anemia in preschoolers, Brazil

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    Rejane Santana de Oliveira

    2002-02-01

    Full Text Available OBJETIVO: Avaliar a magnitude, a distribuição espacial e a tendência temporal da anemia em pré-escolares no Estado da Paraíba, Brasil. MÉTODOS: Corte transversal com amostra aleatória, do tipo multietapas, em oito cidades da zona urbana, de três mesorregiões do Estado da Paraíba, no ano de 1992, pela qual foram selecionados aleatoriamente 1.287 pré-escolares de ambos os sexos. A hemoglobina foi dosada pelo método da cianometa-hemoglobina em sangue venoso, empregando OBJECTIVE: To assess the magnitude, geographical distribution and trends of the prevalence of nutritional anemia among preschoolers and to identify risk groups in the state of Paraiba, Brazil. METHODS: A cross-sectional survey with multistage random sampling procedure was conducted in 8 urban municipalities of three mid-regions (Zona da Mata, Agreste and Sertão in the state of Paraíba in 1992. A total of 1,287 preschoolers of both sexes were selected. Hemoglobin was determined by the cyanometahemoglobin method in venous blood, employing <11 g/dl as the cut-off for anemia. Statistical analysis of proportions employed the chi Square test, whereas for means Mann-Whitney and Kruskal-Wallis were the choice, all with confidence interval of 95%.. RESULTS: The prevalence of anemia was 36.4% (CI 33.7--39.1 in the state of Paraiba, greater (p=0.00 than that observed (19.3%, CI 17.3--21.5 in 1982. Only 1.0% (CI 0.61--1.8 and 6.8% (CI 5.5--8.3 of anemia cases were classified as severe and moderate, respectively. Boys presented lower mean hemoglobin concentration (p=0.00, and children under age 3 comprised the biological group of highest susceptibility for deficiency status (p= 0.00. It was found that the second year of life is the most critical for developing nutritional deficiency (p= 0.00. The Agreste mid-region revealed to be the geographical area of highest risk (p= 0.00, outlining a new epidemiological dynamics when compared to the year 1982, when the drought-ridden Sert

  1. Simulação da precipitação diária para Parnaíba e Teresina, PI, em planilha eletrônica Daily rainfall simulation in Parnaíba and Teresina - Brazil, using a spreadsheet

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    Aderson S. de Andrade Júnior

    2001-05-01

    Full Text Available Os estudos envolvendo precipitação pluviométrica são bastante dificultados devido ao fato das séries históricas disponíveis serem, na maioria dos casos, muito pequenas para efetuá-los. Desta forma, faz-se necessário dispor de uma técnica de simulação estocástica que possibilite a geração de valores diários de precipitação, utilizando-se uma planilha eletrônica. No Estado do Piauí, estudos com esse objetivo são inexistentes, razão por que este trabalho tem o objetivo de simular a precipitação pluviométrica diária para as regiões de Parnaíba e Teresina, PI, através de uma planilha eletrônica. O processo de simulação se baseou no método de Monte Carlo. A ocorrência da precipitação foi determinada através da cadeia de Markov, enquanto a sua magnitude foi estimada pelas funções de distribuição de probabilidades gama e empírica. O modelo utilizado proporcionou estimativas com excelente precisão e exatidão, fato comprovado pelos resultados satisfatórios quanto aos índices de desempenho estatísticos.The studies involving rainfall are quite difficult to conduct due to the fact that the available historical series, in most of the cases, are too small to make them. Thus, it is necessary to adjust a stochastic simulation technique that facilitates the generation of daily rainfall values, using a spreadsheet. In Piauí State, studies with this objective are inexistent for its several regions of agricultural importance. This work was executed with the objective of simulating the daily rainfall for the regions of Parnaíba and Teresina - PI, Brazil, using a spreadsheet. The simulation process was based on Monte Carlo's method. The occurrence of the rainfall was determined through a Markov chain, while its magnitude was estimated by gamma and empirical distribution functions. The model used provided estimates with excellent precision and accuracy, checked by satisfactory results of the statistical performance index.

  2. Análise multivariada da vegetação como ferramenta para avaliar a reabilitação de dunas litorâneas mineradas em Mataraca, Paraíba, Brasil Multivariate analysis of the vegetation as a tool to assess the reclamation of coastal sand dunes after mining in Mataraca, Paraíba, Brazil

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    Luciane Orlandini Cunha

    2003-08-01

    Full Text Available A mineração das dunas litorâneas em Mataraca, Paraíba, Brasil, para obtenção de minérios titaníferos, demanda a retirada da vegetação original e resulta na posterior formação de grandes massas de areias quartzosas estéreis. Estas dunas ficam sujeitas à forte ação dos ventos, podendo se deslocar e ocasionar impactos ambientais de alta magnitude. A mineradora Millennium Inorganic Chemicals do Brasil S.A. desenvolve, desde 1987, um Programa de Reabilitação Ambiental, com o objetivo de fixar essas dunas e reabilitar o ecossistema. Neste estudo objetivou-se identificar o nível de influência dos fatores irrigação, tempo de recuperação, cobertura com bagaço de cana e adição de solo de mata (proveniente do decapeamento pré-exploratório na revegetação dessas áreas. A vegetação foi levantada pelo método de pontos em 1.094 amostras, sistematicamente distribuídas em 13 estratos, que foram definidos pelas diferentes combinações dos fatores citados. Foram amostrados 3.153 indivíduos, pertencentes a 24 famílias e 84 espécies, que a partir de seus valores de cobertura foram submetidas, com os quatro fatores, a uma análise de correspondência canônica. Observou-se a idade como o fator que mais influiu nas relações de abundância, seguido do uso de solo de mata, enquanto a irrigação e a adição de bagaço de cana quase não influenciaram o desenvolvimento da vegetação.The mining of coastal sand dunes in Mataraca, Paraíba, Brazil, to extract titanium-derived minerals requires the removal of the original vegetation and produces huge tailing dunes formed essentially of sterile quartzic sand. These dunes are blown by strong winds throughout the year and may be moved away from the coastline causing serious environmental impacts. Since 1987, the mining company Millennium Inorganic Chemicals from Brazil carries out an Environmental Rehabilitation Program aimed to fix these dunes and reclaim the ecosystem. The objective

  3. Mortalidade materna no estado da Paraíba: associação entre variáveis Mortalidad materna en el estado de Paraíba-Brasil: asociación entre variables Maternal mortality in the state of Paraíba-Brazil: association between variables

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    Ana Cristina da Nóbrega Marinho

    2010-09-01

    Full Text Available A mortalidade materna tem se constituído em um dos problemas prioritários de saúde pública, afetando diretamente as mulheres no ciclo grávido puerperal pertencentes às classes sociais menos favorecidas. Diante desta situação o objetivo deste estudo consistiu em identificar associações entre a raça de mulheres residentes no estado da Paraíba, e as variáveis grupo etário, escolaridade e tipo de óbito das mulheres que foram a óbito por morte materna no período de 2000 a 2004. Trata-se de um estudo transversal, cuja fonte de dados constituiu-se de 109 declarações de óbitos maternos. Procedeu-se a uma análise estatística bivariada e multivariada, para avaliar a associação existente entre as variáveis através da regressão logística múltipla. Calculou-se o odds ratio para investigar a associação entre as variáveis. Observou-se que não houve significância estatística entre as variáveis raça e idade, bem como por escolaridade, mas houve indícios significativos de que as mulheres não brancas da Paraíba tiveram mais chance de morrer por morte obstétrica direta (OR=3,55; IC:1,20-10,5. Os resultados mostraram que o risco de mortalidade materna na Paraíba foi maior entre as mulheres não brancas, configurando-se em importante expressão de desigualdade social.La mortalidad materna se ha constituido en uno de los problemas prioritarios de la salud pública, afectando directamente a mujeres en el ciclo grávido-puerperal, pertenecientes a las clases sociales menos favorecidas. Ante esta situación, el objetivo de este estudio consistió en identificar asociaciones entre la raza de mujeres residentes en el estado de Paraíba - Brasil y las variables de grupo etario, escolaridad, y tipo de defunción de las mujeres que fallecieron por muerte materna en el período de 2000 a 2004. Se trata de un estudio transversal, en el que se utilizaron como fuente de datos 109 partidas de defunción maternas. Se procedió a un an

  4. Assenamentos Espontâneos nas Zonas de Risco: Estudo de Caso em João Pessoa, Paraíba, Brasil Informal Settlements in Risk Areas: a Case Study in João Pessoa, Paraíba, Brazil Asentamientos informales en áreas de riesgo: un caso de estudio en João Pessoa, Paraíba, Brasil

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    Juliana Carvalho Clemente

    2009-06-01

    Full Text Available Resumo O artigo que apresentamos consiste na caracterização de assentamentos espontâneos na cidade de João Pessoa, situada no estado da Paraíba, região Nordeste do Brasil. Tais assentamentos correspondem a lugares ambientalmente frágeis, com precárias condições de infraestrutura, saneamento básico, segurança, segregados da cidade formal e, conseqüentemente, com baixos padrões de qualidade de vida. A ocupação desordenada de tais setores da cidade gera elevados prejuízos para a população e afeta diretamente a saúde dos indivíduos expostos à variadas situações de risco, presumindo, portanto, a elaboração de estudos que forneçam subsídios para possíveis intervenções urbanas e planos de gerenciamento que visem à mitigação dos efeitos dos riscos nas comunidades e que tenham como foco a atuação sinérgica em prol da preservação da vida. Para tanto, foi realizado um estudo urbanístico e logístico das comunidades Saturnino de Brito, Santa Emília de Rodat e Renascer I, baseado na metodologia do Ministério das Cidades/Governo Federal. Abstract This paper deals with the characterization of informal settlements in the city of João Pessoa, located in the state of Paraíba in the North-Eastern region of Brazil. Such settlements are environmentally fragile places, with poor conditions of infrastructure, sanitation and security, segregated from the formal city and, consequently, scoring low at quality of life indicators. The chaotic occupation patterns of those parts of the city directly affect the health of people as they are exposed to multiple risk situations. Therefore, it is necessary to produce studies that provide information for decision-makers who are to grant subsidies for urban interventions and management plans that seek the reduction of risks and have as their focus synergistic actions towards the preservation of life. With these aims, a study of urbanism and infrastructure was realized in the communities

  5. Environmental sustainability and human well-being indicators from the ecosystem perspective in the Middle Paraíba Region, Rio de Janeiro State, Brazil Indicadores de sustentabilidade ambiental e de bem-estar em perspectiva ecossistêmica na Região do Médio Paraíba, Rio de Janeiro, Brasil

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    Carlos Machado de Freitas

    2007-01-01

    Full Text Available Population urbanization is a global trend, and socioeconomic activities in urban areas cause changes that affect the environment and human well-being beyond the specific territories, thus connecting urban to non-urban areas and creating city-regions. This article's objective, from an ecosystem perspective, is to gather a set of information on municipalities (counties belonging to the Middle Paraíba River Valley Region in the State of Rio de Janeiro, Brazil, in order to identify conditions and trends in environmental sustainability and well-being. The conceptual framework adopted here was that of the Millennium Ecosystem Assessment, identifying direct and indirect driving forces that affect human well-being, with health as a component of the latter. We used a set of available public-domain data and information sources on the municipalities, grouped by socioeconomic and environmental conditions and the soundness of institutional structural well-being for sustainability. The indicators used here point to a process of degradation in the ecosystem services that has still not been prevented by the prevailing institutional structure, thus increasing constraints on well-being and the spread of socio-environmental impacts in the middle and long terms.A urbanização da população é uma tendência mundial e as atividades sócio-econômicas nestas áreas resultam em alterações que afetam o meio ambiente e o bem-estar humano para além de seus territórios, conectando áreas urbanas com não-urbanas, constituindo cidades-regiões. O objetivo deste artigo é, em perspectiva ecossistêmica, reunir um conjunto de informações sobre municípios integrantes da Região do Médio Paraíba, Estado do Rio de Janeiro, Brasil, de modo a indicar condições e tendências da sustentabilidade ambiental e do bem-estar. A estrutura conceitual adotada teve como referência a adotada no Millennium Ecosystem Assessment, identificando forças motrizes diretas e indiretas

  6. Ocorrência de Mollicutes e Ureaplasma spp. em surto de doença reprodutiva em rebanho bovino no Estado da Paraíba Occurrence of Mollicutes and Ureaplasma spp. in outbreak of reproductive disease in cattle herds, State of Paraíba, Brazil

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    Sandra B. dos Santos

    2013-03-01

    Full Text Available Em março de 2012 foi diagnosticado um surto de doença reprodutiva em rebanho bovino no Estado da Paraíba, Brasil. Foram examinadas 32 vacas e dois touros da raça Girolando. As vacas apresentaram sinais de doença reprodutiva como repetição de cio, vulvovaginite granular, infertilidade e abortos. As amostras de suabes vaginais e prepuciais foram colhidas e submetidas a isolamento bacteriano e PCR. As reações da PCR para Mollicutes e Ureaplasma spp. foram realizadas com os iniciadores MGSO-GPO3 e UGP'F-UGP'R, respectivamente. Na Nested PCR para Ureaplasma diversum, os iniciadores usados foram UD1, UD2, UD3 e UD4. Para isolamento bacteriano, as amostras foram diluídas de 10-1 até 10-5, semeadas em meio "UB", líquido e placa, sendo incubadas por até 21 dias a 37ºC em jarra de microaerofilia. A frequência de Mollicutes detectada na PCR foi de 65,6% e para Ureaplasma spp. foi de 50,0%, enquanto que para U. diversum foi de 15,6%. No isolamento a frequência de Mollicutes foi de 57,1% e para Ureaplasma spp. foi de 28,6%. No ágar "UB" foi visualizado o crescimento misto de Mycoplasma spp. e Ureaplasma spp. em seis amostras. Foi confirmado o envolvimento de micro-organismos da Classe Mollicutes em surto de doença reprodutiva em vacas no sertão paraibano.In March of 2012 was investigated a reproductive disease outbreak in cattle herds from Paraíba State, Brazil. Were examined 32 cows and two bulls Giroland breed. The cows showed signs and symptoms of reproductive failure such as repeat breeding, granular vulvovaginitis, infertility and abortions. Vaginal and preputial mucous samples were collected for analysis by PCR and isolation. The PCR reactions for Mollicutes and Ureaplasma spp. were realized with primers MGSO and GPO3, and UGP'F and UGP'R respectively. The nested PCR assay for Ureaplasma diversum was realized with primers UD1, UD2, UD3 and UD4. For bacteriologic isolation, obtained samples were diluted up to 10-1 at 10-5, inoculated

  7. Ocorrência de uma nova bentonita brasileira nos basaltos intemperizados da formação Mosquito, bacia do Parnaíba, sul do Maranhão Occurrence of a new brazilian bentonite in the weathered basalts of the Mosquito formation, Parnaíba basin, southern Maranhão, Brazil

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    S. P. A. Paz

    2011-12-01

    Full Text Available No município de Formosa da Serra Negra, sul do Maranhão, às margens da rodovia MA006, encontram-se afloramentos de basaltos intemperizados da Formação Mosquito, apresentando textura bastante argilosa e potencial de ser um material bentonítico. Neste trabalho, esse material que vem sendo considerado uma nova ocorrência de bentonita no Brasil e, batizado de Formosa, foi caracterizado por difração de raios X, fluorescência de raios X, microscopia eletrônica de varredura, espectroscopia Mössbauer e capacidade de troca catiônica, em amostra total e após separação granulométrica, e ainda, comparada com duas das principais bentonitas brasileiras, Chocolate e Bofe. Apesar das variações químicas e mineralógicas encontradas, muito comuns nesse tipo de argila, as semelhanças observadas convencem o promissor uso da argila Formosa como bentonita, uma vez que o ponto principal da caracterização está na presença dominante de montmorillonita e baixa concentração de outras fases minerais, mostrando que esse material apresenta mineralogia importante do ponto de vista tecnológico.Extensive weathered basalt outcrops can be found in the vicinities of the Formosa da Serra Negra town, southern of Maranhão state, northern Brazil. They exhibit typical clay texture and an enormous potential to be used and explored as bentonite. This work deals with the chemical and mineralogical characterization of this material that has been named as Formosa Bentonite. The main following methods and analytical techniques were used: XRD, XRF, SEM, Mössbauer spectroscopy and CEC in total sample and after grain size separation. Two samples from the main Brazilian "Paraíba bentonites" (Chocolate and Bofe types were used for comparison purposes. The results show that the Formosa bentonite exhibit some chemical and mineralogical differences in comparison with the two reference samples, although the main and most important feature is the presence of

  8. Levantamento etnobotânico de plantas medicinais em área de caatinga no município de São José de Espinharas, Paraíba, Brasil Ethnobotanical survey of medicinal plants in a caatinga area in São José de Espinharas Municipality, Paraíba State, Brazil

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    M.G.V Marinho

    2011-01-01

    Full Text Available Este trabalho teve como objetivo realizar levantamento das plantas medicinais utilizadas pela comunidade de São José de Espinharas, a fim de registrar e preservar o conhecimento popular. A metodologia usada foi de entrevistas semi-estruturadas, com observações participantes, coleta e identificação do material botânico e preparação de exsicatas, resultando em lista de 82 espécies de 38 famílias diferentes. São fornecidas as informações nomenclatura popular e botânica, uso terapêutico, parte utilizada, forma de uso, modo de preparo e doenças tratadas. As raízes (30% foram ás partes mais utilizadas e a forma de preparo foi lambedor (32%. O conhecimento sobre os usos e modos de preparo provém em geral, dos familiares (85%. Com esses resultados, verifica-se a interação da população local com a flora e utilização relacionada a aspectos sociais, econômicos, culturais e às mudanças ambientais.The aim of this study was to perform a survey of medicinal plants used by the community of São José de Espinharas, Paraíba State, Brazil, in order to record and preserve the folk knowledge. The adopted methodology was based on semi-structured interviews, with participating observations, botanical material collection and identification, and voucher preparation, resulting in a list of 82 species of 38 different families. The following information was provided: folk and botanical nomenclature, therapeutic application, used plant part, forms of use, method of preparation and treated diseases. Roots (30% constituted the part most frequently used and syrup (32% was the predominant method of preparation. The knowledge of uses and methods of preparation are generally handed down in the family (85%. Based on those results, there is an interaction of the local population with the flora and its use is related to social, economical and cultural aspects and environmental changes.

  9. Petrogenesis of the uraniferous albitites, BA, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Chaves, Alexandre de Oliveira, E-mail: alochaves@yahoo.com.br [Universidade Federal de Minas Gerais (CPMTC/IGC/UFMG), Belo Horizonte, MG (Brazil). Centro de Pesquisas Manoel Teixeira da Costa. Instituto de Geociencias

    2011-07-01

    After Chaves et al. (2007), the crystallization and coeval deformation of the Lagoa Real uraniferous sodic syenite (uraniferous albitite protolith) took place along paleoproterozoic shear zones developed under regional late-orogenic tectonic conditions. The interpretation of new major elements, Zr and Th lithogeochemical data points to a petrogenetic connection between alkali-gabbro (local amphibolite protolith) and sodic syenite by fractional crystallization through transitional alkaline series. This magmatic differentiation occurred either before or during shear process, which in turn led to albitite and amphibolite formation. The regional microclinegneiss, whose protolith is a syn-collisional potassic granite, represents the albitite host rock, and, apparently, it has no petrogenetic association to syenite (albitite protolith) in magmatic evolutive terms (author)

  10. Petrogenesis of the uraniferous albitites, BA, Brazil

    International Nuclear Information System (INIS)

    After Chaves et al. (2007), the crystallization and coeval deformation of the Lagoa Real uraniferous sodic syenite (uraniferous albitite protolith) took place along paleoproterozoic shear zones developed under regional late-orogenic tectonic conditions. The interpretation of new major elements, Zr and Th lithogeochemical data points to a petrogenetic connection between alkali-gabbro (local amphibolite protolith) and sodic syenite by fractional crystallization through transitional alkaline series. This magmatic differentiation occurred either before or during shear process, which in turn led to albitite and amphibolite formation. The regional microclinegneiss, whose protolith is a syn-collisional potassic granite, represents the albitite host rock, and, apparently, it has no petrogenetic association to syenite (albitite protolith) in magmatic evolutive terms (author)

  11. Aspectos clínicos, epidemiológicos e patológicos da infecção natural em bovinos por Trypanosoma vivax na Paraíba Clinical, epidemiological and pathological signs of natural infection in cattle by Trypanosoma vivax in Paraíba, Brazil

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    Jael S. Batista

    2008-01-01

    located in the state of Paraíba, northeastern Brazil. The epidemiology, clinical signs and pathology of the disease were studied from May 2005 to November 2006. T. vivax was identified morphologically and by polymerase chain reaction test (PCR. The affected cattle presented anorexia, depression, fever, anemia, weight loss, reduction in milk production, transitory blindness, abortion and some nervous signs as nystagmus, tetany and bruxism. All cattle that presented nervous signs died. Necropsy findings were enlarged lymph and spleen, serous atrophy of the fat depots, proeminence of the splenic white pulp, hydropericardium and pericardial petechiae and ecchymoses on the epicardium. Histologically there was meningoencephalitis. The treatment of the clinical cases with diminazena aceturate was efficient with clearance of the parasite from the blood or disappearance of clinical signs in up to 2 months after the beginning of the outbreak on the two farms studied. The epidemiologic factors favoring the occurrence of the outbreak were the abundance of mechanical vectors, as tabanids and Stomoxys sp., and the introduction into the herd of cattle from farms where the disease occurred. It is suggested that the semiarid of the Brazilian Northeast is an enzootic instability region for trypanosomiasis due to its prolonged periods of drought and high temperatures, constituting during most part of the year an unfavorable environment for the development of vectors.

  12. Estudo ecológico e zoogeográfico sobre a fauna de lagartos (Sauria das dunas de Natal, Rio Grande do Norte e da Restinga de Ponta de Campina, Cabedelo, Paraíba, Brasil Ecologic and zoogeographic study on a fauna of lizards (Sauria from Dunas of Natal, Rio Grande do Norte and from Restinga de Ponta de Campina, Cabedelo, Paraíba, Brazil

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    Eliza Maria Xavier Freire

    1996-01-01

    Full Text Available An inventory of the fauna of lizards was made in the dunes of Natal (Rio Grande do Norte, Brazil and in the "restingas" (sandbanks with its associated vegetation of Ponta de Campina (Cabedelo, Paraíba, Brazil from October/84 to March/86. The objective was to know the composition and structure of these communities as well as to evaluate the zoogeographical importance of the spots. The samples were collected and the observations were made along of transects which were established to enable the sampling of the habitats under study in both areas. Each transect was crossed one day per month, during 14 months. The collect of lizards was made manually or through the use of a small gun, calibre 22, with ammunition of the type mustard lead. Observations were made on the habitats utilized by the species (open areas or forests and on the species distribution by microhabitat. The fauna of lizards in the area under study is formed by species ecologically connected with open formations and also by species of the Atlantic Rain Forest. The majority of the species collected in the open areas is part of the fauna of the great diagonal of open formations which come from the Northeast of Argentina and go up to the state of Maranhão. There is, however, a great influence of the caatinga fauna, specially in the dunes of Natal. The species found in the forest of the dunes, in spite of being part of the Atlantic Forest, are morphologically differentiated. Gymnodactylus darwinii (Gray, 1845 and G. geckoides Spix, 1825 are sympatrics, but not syntopics, in the dunes of Natal.

  13. Copper deficiency conditioned by high levels of zinc, manganese and iron in the Middle Paraíba, RJ, BrazilDeficiência de cobre condicionada a altos teores de zinco, manganês e ferro na região do Médio Paraíba, RJ, Brasil

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    Ana Paula Lopes Marques

    2013-06-01

    Full Text Available Concentrations of microminerals in the soils, pastures, and sera of adult and young bovines were determined in 7 areas of Middle Paraíba, Rio de Janeiro, Brazil, that showed a history of low reproductive performance, marked weight loss of cows after calving, allotriophagy, and changes in pelage color. The animals were subjected to clinical evaluation, and the main signs were as follows: regular to poor general condition, anemia, alopecia, depigmentation of the pelage in adult animals, discolored pelage (reddish in dark animals, and thinning and loss of hair around the eyes. Calves showed bad general appearance, retarded development, and rough, dry, and spiked hair. There were other evident signs such as craving and consumption of foreign material such as soil, wood, or bones. After the interview with the owners and on-site evaluation of the herds, soil samples, forages, and blood serum samples were obtained for analysis of macro and micronutrients in 2 different periods: May/June (end of the rainy season–autumn and October/November (end of dry season–spring. The findings of soil (3.03 ± 1.72/3.13 ± 1.22 mg/ dm3 and forage (11.91 ± 2.92/13.6 ± 5.23 ppm samples indicated normal and high levels of copper, respectively, in most of the pastures which is contrary to the clinical signs of deficiency observed in the animals. However, the copper levels in serum were lower than normal (0.42 ± 0.14/0.45 ± 0.17 ppm in majority of the animals, in periods of evaluation and for all properties. Excessively high values of iron, zinc, and manganese were found in soil and pasture samples, which could have probably been acting as antagonists of copper absorption, resulting in a conditioned deficiency. Descrevem-se as concentrações de microelementos minerais em amostras de solos, pastagens e soro de bovinos adultos e jovens em sete propriedades na região do Médio Paraíba, RJ, Brasil com histórico de baixo desempenho reprodutivo, emagrecimento

  14. Alometria no crescimento de Uca mordax (Smith (Crustacea, Decapoda, Ocypodidae na Baía de Guaratuba, Paraná, Brasil Allometric growth in the fiddler crab Uca mordax (Smith (Crustacea, Decapoda, Ocypodidae from Guaratuba Bay, Parana, Brazil

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    Setuko Masunari

    2005-12-01

    Full Text Available Um estudo do crescimento relativo da maior quela do macho e do abdome da fêmea foi realizado numa população do caranguejo chama-maré Uca mordax (Smith, 1870 ocorrente no extremo oeste da Baía de Guaratuba, Paraná, sul do Brasil. O comprimento da maior quela (CMQ foi medido em 319 machos, e a largura do abdome (LAB em 356 fêmeas. Adicionalmente, seis chama-marés sexualmente indiferenciados foram analisados. A largura da carapaça (LC foi escolhida como dimensão de referência para ambos os sexos, a qual variou de 1,94 a 20,0 mm para machos, de 2,50 a 18,85 mm para fêmeas, e de 1,94 a 3,15 para os indivíduos sexualmente indiferenciados. A relação entre o LC e CMQ mostrou um ponto de inflexão em 11,70 mm LC nos machos, e entre LC e LAB, em 8,77 mm LC dentre as fêmeas. Os machos (média LC = 14,24 mm atingiram tamanhos pouco maiores do que as fêmeas (média LC = 13,97 mm. O crescimento foi alométrico positivo durante toda a ontogênese de ambos os sexos, isto é, antes e depois da muda puberal. As equações das relações entre LC e CMQ nos machos foram: logCMQ = -0,542265 + 1,51.logLC para machos juvenis e logCMQ = -1,446281 + 2,37.logLC para machos adultos. Nas fêmeas, a relação entre LC e LAB foi: logLAB = -0,607282 + 1,22.logLC e logLAB = -0,912074 + 1,60.logLC, respectivamente, para juvenis e adultas. Estas dimensões estão relacionadas com as atividades reprodutivas da espécie. O nível de alometria do CMQ dos machos adultos de U. mordax foi o mais alto dentre as espécies do gênero, cujo crescimento relativo desta dimensão foi estudado. A proporção de machos destros foi estatisticamente a mesma daqueles sinistros (1:1.Relative growth of the male major chela and female abdomen was studied in a population of the fiddler crab Uca mordax (Smith, 1870 from Guaratuba Bay, Parana, Southern Brazil. Major chela length (CMQ was measured from 319 males, and abdomen width (LAB from 356 females. Also six small sexually

  15. Lista preliminar das espécies da macrofauna de fundos inconsolidados da Baía de Guaratuba, Paraná, Brasil Preliminary list of softbotom benthic macrofauna from Guaratuba Bay, Paraná, Brazil

    OpenAIRE

    Arno Blankensteyn; Ronny Scheffler de Moura

    2002-01-01

    A qualitative survey of benthic macrofauna was carried out in the Guaratuba Bay, Paraná,Brazil. Twenty nine stations were sampled from April to July, 1996, including sublitoral and intertidal zones resulting in a preliminary list with 69 taxa. From this total, only 31,9% (22 taxa) were previously registered to the area.

  16. The concentrations of heavy metals and the incidence of micronucleated erythrocytes and liver EROD activity in two edible-fish from the Paraíba do Sul river basin in Brazil | Concentração de metais pesados e incidência de eritrócitos micronucleados e atividade de EROD hepática em duas espécies de peixes comestíveis na bacia do Rio Paraíba do Sul, Brasil

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    Thiago Estevam Martins Parente

    2015-02-01

    Full Text Available The Paraíba do Sul river (PSR basin crosses one of the most populated and industrialized regions of Brazil and receives effluent from the metallurgic, paper mill and agricultural industries. PSR water has multiple uses, including being a supply of potable water and riverine populations which consume some species of its fish. In the present study, we investigated the responses of two biomarkers of aquatic pollution, EROD activity in the liver and micronuclei frequency in peripheral blood, as well as the concentrations of seven heavy metals in the muscle tissue of two species of fish native to the PSR: Geophagus brasiliensis and Hypostomus sp. Sampling was performed in both the wet and dry seasons of 2003, with a total of 339 fish collected from 16 sites along the PSR basin. Fish collected at Levy Gasparian, Barra Mansa and Três Rios both had higher EROD activity and micronuclei frequency. The results also suggested a moderate induction of EROD activity in fish collected from S.L. Paraitinga and Sapucaia. Micronuclei frequency was elevated in fish from S.J. Campos, Além Paraíba, Campos and S.J. Barra. In all cases, heavy metal concentrations did not exceed the maximum considered safe for fish meat consumption. -------------------------------------------------------------------------------------------- A bacia do rio Paraíba do Sul (PSR atravessa uma das regiões mais povoadas e industrializadas do Brasil, recebendo efluentes de indústrias metalúrgicas, de papel e celulose e agrícolas. Os usos das águas do PSR são múltiplos, incluem o fornecimento de água potável, e as populações ribeirinhas consomem algumas de suas espécies de peixes. No presente trabalho foram investigadas as respostas de dois biomarcadores à poluição, a atividade hepática de EROD e a freqüência de micronúcleo em sangue periférico, e medidos os níveis de sete metais pesados no músculo de duas espécies de peixes nativas do PSR, Geophagus brasiliensis and

  17. Representações sociais dos moradores da Baía de Camamu sobre o Filo Porifera Social representations of Camamu Bay, Brazil, inhabitants of the Phylum Porífera

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    Loyana Docio; Júlio César Castilho Razera; Ulisses dos Santos Pinheiro

    2009-01-01

    O artigo apresenta uma pesquisa que teve o objetivo de traçar um perfil das representações sociais dos moradores de três localidades da Baía de Camamu, Estado da Bahia, sobre o Filo Porifera. O foco nos poríferos foi motivado pela grande biomassa de esponjas no fenômeno de arribação da baía e ausência de pesquisas sobre esses animais na área do ensino. A metodologia esteve pautada nas representações sociais, pois conhecimentos (re)construídos na vivência de um local característico, como o apr...

  18. Alimentação de Bairdiella ronchus (Cuvier) (Perciformes, Sciaenidae) na Baía de Guaratuba, Paraná, Brasil Feeding of Bairdiella ronchus (Cuvier) (Perciformes, Sciaenidae) at the Guaratuba Bay, Paraná, Brazil

    OpenAIRE

    Ana Lúcia Vendel; Paulo de Tarso da Cunha Chaves

    1998-01-01

    Seasonal variation of food items of Bairdiella ronchus (Cuvier, 1830) classified by size was analysed based on monthly samples between september/1993 and september/1996 at the Guaratuba Bay, Southern Brazil. The stomach contents of a hundred eighty-two fishes were analysed by the Occunence Frequency Method and Point Count for a Lot Method. The individuais were divided in two groups, smaller and longer than 140mm, and a comparative study of digestive tract and branchial are was performed for t...

  19. <b>A conservationist approach on environmental diagnosis of ground use in the Iguatemi river basin, Mato Grosso do Sul State, Brazil - doi: 10.4025/actascibiolsci.v34i3.9001

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    Marco Antonio Gomes Souto

    2012-01-01

    Landscape Ecology is a contemporary approach in conservation studies in which, coupled to the development and use of GIS-based tools, provides new methods for the analysis of forest fragments. Based on these new approaches, the environmental assessment of ground use in the Iguatemi river basin Mato Grosso do Sul State, Brazil is provided through conservation-based flora and ecology aspects. A regional map of ground use with field-collected data using Rapid Ecological Assessment methodology an...

  20. Ocorrência de infecção natural de Fasciola hepatica Linnaeus, 1758 em Lymnaea columella Say, 1817 no Vale do Paraíba, SP, Brasil Natural infection by Fasciola hepatica in Lymnaea columella in the Paraíba river valley, S. Paulo, Brazil

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    Marlene Tiduko Ueta

    1980-06-01

    Full Text Available Foram registradas em Piquete, no vale do rio Paraíba do Sul (SP, Brasil, taxas de 1,22% e 0,14% de infecção natural em Lymnaea columella, por Fasciola hepatica. Em um único exemplar de Lymnaea columella dentre os 1.052 examinados, foram observadas rédias com xifidiocercárias, rédias com cercárias de Fasciola hepatica e metacercárias de Echinostomatidae.Infection rates of 1.22% and 0.14% were obtained in Lymnaea columella snails naturally infected by Fasciola hepatica. Samples of the snails were collected in Piquete, a municipality of Paraíba do Sul, a river valley area in the State of S. Paulo. Also observed was one of the 1052 specimen of the Lymnaea columella rediae which had xiphidiocercariae and rediae with Fasciola hepatica cercariae and metacercariae of Echinostomatidae.

  1. Variações ontogênicas e sazonais na dieta de Etropus crossotus Jordan e Gilbert, 1882 (Paralichthydae na baía de Ubatuba-Enseada, Estado de Santa Catarina, Brasil = Ontogenetic and seasons changes in the diet of Etropus crossotus Jordan and Gilbert, 1882 (Paralichthydae at Ubatuba-Enseada Bay, Santa Catarina State, Brazil

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    Matheus Oliveira Freitas

    2011-04-01

    Full Text Available Foram investigadas as variações ontogênicas e sazonais na dieta de Etropus crossotus coletados na baía de Ubatuba-Enseada, Estado de Santa Catarina, Brasil. Redes de arrasto com porta foram utilizadas para as coletas mensais, e 60 exemplares foram coletados entre outubro de 2003 e setembro de 2004. Maior similaridade entre os Índices de Importância Alimentar foi observada entre a primavera e o outono. Crustáceos decápodes representaram 50% dos itens alimentares durante a primavera e outono, e crustáceos anfípodes foram os itens mais representativos no inverno. Maior similaridade entre os IAifoi observada entre as classes 1, 2 e 4, pela alta representatividade de Decapoda, e entre as classes 5, 6 e 7, em função da representatividade de Decapoda e Amphipoda. Os resultados obtidos foram similares a outros estudos realizados na região costeira Sul do Brasil.Ontogenetic and seasonal changes in the diet of Etropus crossotussampled at Ubatuba-Enseada Bay in Santa Catarina State, Brazil were investigated. A trawl net was used for the surveys, and 60 fish were collected monthly during October (2003 and September (2004. The highest similarity of the Alimentary Importance Index (AII wasobserved between spring and autumn. Crustacea Decapoda represented 50% of the feeding items during spring and fall, and Crustacea Amphipoda were the most representative item in winter. The highest AII similarity was observed among length classes 1, 2 and 4, whichwas related to Decapoda representation, and among length classes 5, 6 and 7, because of Decapoda and Amphipoda importance. Results were similar to other studies in the southern coast of Brazil.

  2. Redes solidárias em vigilância sanitária: a rede de gerenciamento da comida de rua em Salvador, BA – Brasil / Network solidarity in health surveillance: a management network for street food in Salvador, BA - Brazil

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    Cristian Oliveira Benevides Sanches Leal; Carmen Fontes Teixeira

    2015-01-01

    O objetivo desse trabalho é analisar os limites e possibilidades do arranjo em rede como alternativa para o gerenciamento do risco relacionado à comida de rua. Discute-se a pertinência da organização de redes solidárias em vigilância sanitária (Visa), com base em um estudo de caso da Rede de gerenciamento da comida de rua, em Salvador/BA, entre 2008 a 2011. A metodologia incluiu entrevistas semi-estruturadas com membros da rede e utilização de imagens que revelam aspectos da situação da co...

  3. Fases larvais do mexilhão dourado Limnoperna fortunei (Dunker) (Mollusca, Bivalvia, Mytilidae) na Bacia do Guaíba, Rio Grande do Sul, Brasil Larval stages of the golden mussel Limnoperna fortunei (Dunker) (Bivalvia, Mytilidae) in Guaíba Basin, Rio Grande do Sul State, Brazil

    OpenAIRE

    Cíntia P. dos Santos; Norma L. Würdig; Maria C. D. Mansur

    2005-01-01

    Desde o final de 1998, um pequeno bivalve invasor, o "mexilhão dourado", Limnoperna fortunei (Dunker, 1857), oriundo do sudeste asiático, está presente no sul do Brasil. Foi provavelmente transportado, não intencionalmente, através de água de lastro para a Bacia do Guaíba, Rio Grande do Sul, Brasil. Em nosso meio, este molusco vem causando problemas de "macrofouling" com grandes prejuízos econômicos e danos à fauna e flora. As coletas foram qualitativas e quantitativas quinzenais no período d...

  4. Diagnóstico e quantificação de doenças fúngicas da acerola no Estado da Paraíba Diagnostic and quantification of barbados cherry diseases in the State of Paraíba, Brazil

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    Fernandes A. Almeida; Egberto Araújo; Hermes Gonçalves Junior; Artur F. Barreto; Renato A. G. Carvalho

    2003-01-01

    Objetivando o diagnóstico e quantificação das doenças da acerola (Malpighia emarginata) no Estado da Paraíba, realizou-se um levantamento nas microrregiões do Sertão, Curimatau, Brejo e Litoral. As doenças identificadas foram a cercosporiose (Cercospora sp.), fusariose (Fusarium oxysporum), fumagina (Capnodium sp.), antracnose (Colletotrichum gloeosporioides) e mancha de Alternaria (Alternaria sp.). Além dessas, no teste de patogenicidade, verificou-se o desenvolvimento de lesões circulares, ...

  5. Ocorrência de infecção natural de Fasciola hepatica Linnaeus, 1758 em Lymnaea columella Say, 1817 no Vale do Paraíba, SP, Brasil Natural infection by Fasciola hepatica in Lymnaea columella in the Paraíba river valley, S. Paulo, Brazil

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    Marlene Tiduko Ueta

    1980-01-01

    Foram registradas em Piquete, no vale do rio Paraíba do Sul (SP), Brasil, taxas de 1,22% e 0,14% de infecção natural em Lymnaea columella, por Fasciola hepatica. Em um único exemplar de Lymnaea columella dentre os 1.052 examinados, foram observadas rédias com xifidiocercárias, rédias com cercárias de Fasciola hepatica e metacercárias de Echinostomatidae.Infection rates of 1.22% and 0.14% were obtained in Lymnaea columella snails naturally infected by Fasciola hepatica. Samples of the snails w...

  6. Herdabilidade para efeitos direto e materno de características de crescimento de bovinos Nelore no Estado da Paraíba Heritability of maternal and direct effects of growth traits in Nellore herds at Paraiba State, Brazil

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    Maria Norma Ribeiro; Edgard Cavalcanti Pimenta Filho; Gabrimar Araújo Martins; José Lindenberg Rocha Sarmento; Raimundo Martins Filho

    2001-01-01

    Dados de pesos aos 205 (P205), 365 (P365) e 550 dias de idade (P550) de três rebanhos da raça Nelore criados no Estado da Paraíba em regime de pasto, no período de 1975 a 1990, foram utilizados. Os efeitos genéticos direto e materno foram estimados pelo Método da Máxima Verossimilhança Restrita aplicada a um modelo animal. Foram incluídos os efeitos fixos de ano-mês-sexo, fazenda e idade da vaca, como (co) variável linear e quadrática. As médias dos quadrados mínimos e respectivos erros-padrã...

  7. Sorghum silage production system in Cariri, Paraíba

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    Ebson Pereira Cândido; Edgard Cavalcanti Pimenta Filho; Severino Gonzaga Neto; Edson Mauro Santos; José Fábio Paulino de Moura; Safira Valença Bispo

    2014-01-01

    The objective of this study was to characterize the sorghum farming and ensiling systems in the Cariri region of Paraíba State (Brazil), and to identify different groups of producers based on productive characteristics using frequency distributions, and principal component and cluster analyses. A total of 100 milk producers in the Caturité and Boqueirão municipalities in the dairy region of Cariri, Paraíba, were selected to fill out a questionnaire comprised of 32 questions to collect data on...

  8. Representações sociais dos moradores da Baía de Camamu sobre o Filo Porifera Social representations of Camamu Bay, Brazil, inhabitants of the Phylum Porífera

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    Loyana Docio

    2009-01-01

    Full Text Available O artigo apresenta uma pesquisa que teve o objetivo de traçar um perfil das representações sociais dos moradores de três localidades da Baía de Camamu, Estado da Bahia, sobre o Filo Porifera. O foco nos poríferos foi motivado pela grande biomassa de esponjas no fenômeno de arribação da baía e ausência de pesquisas sobre esses animais na área do ensino. A metodologia esteve pautada nas representações sociais, pois conhecimentos (reconstruídos na vivência de um local característico, como o apresentado por esse ambiente, permitem desenhar perspectivas que subsidiam o ensino de Ciências, por exemplo, no tratamento dos obstáculos epistemológicos à aprendizagem de conceitos científicos. Foram realizadas sessenta entrevistas semiestruturadas, vinte em cada lugarejo (Ilha do Contrato, Barra Grande e Ilha dos Tubarões. Os dados foram organizados em categorias que resultaram num perfil de conhecimentos sobre os seguintes aspectos dos poríferos: estado vital, origem, taxonomia, ecologia, anatomia, fisiologia, utilidade antrópica e espongose.This study established a profile of social representations by inhabitants in three locations in Camamu Bay (state of Bahia of the Phylum Porifera. Among other reasons, the focus on Porifera is due to its significant biomass ascertained in the bay region's migration phenomenon and the lack of research on these animals in education. The methodology used was based on social representations because when knowledge is (rebuilt from experience of a location with a characteristic profile is compared to scientific knowledge, it is possible to draw perspectives for Science education, such as the epistemological obstacles to the learning of scientific concepts. Sixty semi-structured interviews were carried out, twenty in each place (Ilha do Contrato, Barra Grande, and Ilha dos Tubarões. The gathered data was organized into categories that outlined a profile of knowledge that includes characteristics such

  9. Aspectos clínicos, epidemiológicos e patológicos da infecção natural em bovinos por Trypanosoma vivax na Paraíba Clinical, epidemiological and pathological signs of natural infection in cattle by Trypanosoma vivax in Paraíba, Brazil

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    Batista, Jael S; Francisco Silvestre B. Bezerra; Rodrigo A. Lira; José Ricardo G. Carvalho; Antonio M. Rosado Neto; Alinson A. Petri; Marta Maria G. Teixeira

    2008-01-01

    Descrevem-se dois surtos de tripanossomíase por Trypanosoma vivax em bovinos, ocorridos em dois estabelecimentos do alto sertão da Paraíba. Os sinais clínicos, a patologia e a epidemiologia da doença foram estudados no período de maio de 2005 a novembro de 2006.T. vivax foi identificado em esfregaços da capa leucocitária e mediante a reação em cadeia da polimerase (PCR). Os animais afetados apresentaram anorexia, depressão, febre, anemia, perda de peso, redução da produção leiteira, cegueira ...

  10. Análise espacial da violência doméstica contra a mulher entre os anos de 2002 e 2005 em João Pessoa, Paraíba, Brasil Spatial analysis of domestic violence against women from 2002 to 2005 in João Pessoa, Paraíba State, Brazil

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    Kerle Dayana Tavares de Lucena; Ana Tereza Medeiros Cavalcanti da Silva; Ronei Marcos de Moraes; César Cavalcanti da Silva; Italla Maria Pinheiro Bezerra

    2012-01-01

    Trata-se de um estudo quantitativo, ecológico, exploratório com utilização de técnicas de análise espacial e do Sistema de Informações Geográficas. A população foi composta por todas as denúncias de mulheres vítimas de violência doméstica, residentes no Município de João Pessoa, Paraíba, Brasil, no período de 2002 a 2005, na Delegacia Especializada de Atendimento da Mulher. Objetivou-se investigar a distribuição espacial da violência doméstica para subsidiar os gestores no processo de tomada ...

  11. Alimentação de Bairdiella ronchus (Cuvier (Perciformes, Sciaenidae na Baía de Guaratuba, Paraná, Brasil Feeding of Bairdiella ronchus (Cuvier (Perciformes, Sciaenidae at the Guaratuba Bay, Paraná, Brazil

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    Ana Lúcia Vendel

    1998-01-01

    Full Text Available Seasonal variation of food items of Bairdiella ronchus (Cuvier, 1830 classified by size was analysed based on monthly samples between september/1993 and september/1996 at the Guaratuba Bay, Southern Brazil. The stomach contents of a hundred eighty-two fishes were analysed by the Occunence Frequency Method and Point Count for a Lot Method. The individuais were divided in two groups, smaller and longer than 140mm, and a comparative study of digestive tract and branchial are was performed for these groups. For fishes smaller than 140mm the following sequence of items was obtained matching both methods by using the Preponderance índices: decapods (subdivided in Brachyura, Caridea and Penaeidea, polychaets, isopods, fishes, unidentified material, copepods, amphipods, molluscs and plant material. For fishes longer than or equal to 140mm the sequence was decapods, polychaets, fishes, copepods, amphipods, isopods, molluscs and plant material, in this order. These results suggest that Bairdiella ronchus at the Guaratuba Bay is a carnivorous species using mainly decapod crustaceans as food throughout the year.

  12. Análise da infra-estrutura existente em unidades de produção agrícola para processamento de mel na região do Vale do Paraíba-SP Analysis of production unit infrastructure of honey processing agricultural in the Paraiba Valley, São Paulo state-Brazil

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    Luiz Eugênio Veneziani Pasin

    2008-04-01

    Full Text Available Objetivou-se neste trabalho analisar a existência de infra-estrutura para processamento de mel, em Unidades de Produção Agrícola-UPAs na região do Vale do Paraíba-SP. Para a realização desse trabalho utilizou-se o método de levantamento dos dados primários através de questionário. No período de janeiro de 2005 a março de 2006 realizou-se o trabalho com a amostra de 116 UPAs, que representam 33,7% do total de unidades onde há atividade apícola. Para avaliar-se a associação e a relação de dependência entre as variáveis equipamentos, casa do mel, escolaridade, tempo na atividade e número de colméias na UPA, utilizou-se o teste do qui-quadrado X² . Os resultados revelaram que a centrífuga está presente em 58,6% das UPAs e a casa do mel em 29,3% das UPAs das unidades da região. O nível de escolaridade, tempo de permanência do apicultor na atividade e o número de colméias são variáveis que estabelecem relações significativas com a existência de centrífuga e de casa do mel na UPA.The aim of this paper is to analyze the infrastructure for honey process in Agricultural Production Units (UPAs located in the Paraíba Valley (São Paulo state, Brazil. For this study to be carried out, the search of primary data method using a questionnaire was applied. From January 2005 to March 2006, 116 UPAs samples, representing 33.7% of all bee-related UPAs were used. For the association and relation of dependence among the equipment variables, "casa do mel", staff education level, time in the activity and number of bee-hives in the UPA, the chi-square (X² statistical tests were applied. The results revealed that centrifuges were present in 58.6% of UPAs, while the type of "casa do mel" occured in 29.3% of UPAs in the region. The staff education level, time in the activity and number of bee-hives are variables which are important when considering the existence of centrifuges and "casa do mel" in the UPA.

  13. Diversidade de Scarabaeidae s. str. (Coleoptera da Reserva Biológica Guaribas, Mamanguape, Paraíba, Brasil: uma comparação entre Mata Atlântica e Tabuleiro Nordestino Diversity of Scarabaeidae s. str. (Coleoptera in the Reserva Biológica Guaribas, Mamanguape, Paraiba, Brazil: a comparison between Atlantic Forest and northeast's Tabuleiro

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    Ana Aline Endres

    2007-03-01

    Full Text Available Os Scarabaeidae consomem fezes e carcaças de grandes vertebrados. Comunidades de escarabeídeos foram comparadas entre áreas de Mata e Tabuleiro da Reserva Biológica Guaribas, Mamanguape, Paraíba. As amostragens foram realizadas mensalmente durante o período de Novembro/2001 a Abril/2002 em áreas de Tabuleiro e Mata. Para coleta dos insetos foram utilizadas 24 armadilhas pitfall iscadas, 12 em cada área, sendo seis iscadas com fezes humanas e seis com fígado apodrecido. Na área de Mata foram coletados 15 espécies e 1298 indivíduos. Na área de Tabuleiro, 25 espécies e 2235 indivíduos. Onze espécies ocorrem conjuntamente nos dois ambientes, sendo 14 registradas apenas para o Tabuleiro e 4 para a Mata. Dichotomius sericeus (Harold, 1867 foi a espécie mais abundante nas duas áreas. A área de Tabuleiro apresentou maior riqueza, entretanto a Mata apresentou maior dominância. O compartilhamento de espécies comuns entre a Mata e o Tabuleiro confere a estes ambientes similaridade moderada.Diversity of Scarabaeidae s. str. (Coleoptera in the Reserva Biológica Guaribas, Mamanguape, Paraiba, Brazil: a comparison between Atlantic Forest and northeast's Tabuleiro. Scarabaeid beetles consume dung and carcasses of large vertebrates. Guilds of scarabeids were compared between Forest and Tabuleiro at the Reserva Biológica Guaribas, Mamanguape, in the state of Paraíba. Samples were collected monthly from November 2001 to April 2002 in Forest and Tabuleiro. Insects were collected by using 24 pitfall-traps, 12 in each area, with six traps baited with human excrement and six with rotten liver. Fifteen species and 1298 specimens were collected in the Forest and 25 species and 2235 specimens in the Tabuleiro. Eleven species occurred in both areas, whereas 14 were found only in the Tabuleiro and four in the Forest. Dichotomius sericeus (Harold, 1867 was the most abundant species in the two areas. The Tabuleiro was the most species-rich; however

  14. Distribuição e abundância dos caranguejos Uca Leach (Crustacea, Decapoda, Ocypodidae na Baía de Guaratuba, Paraná, Brasil Distribution and abundance of fiddler crabs Uca Leach (Crustacea Decapoda Ocypodidae in Guaratuba Bay, Parana State, southern Brazil

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    Setuko Masunari

    2006-12-01

    Full Text Available Um estudo sobre distribuição espacial e abundância dos chama-marés Uca Leach, 1814 foi realizado na Baía de Guaratuba, Estado do Paraná. Foram coletados chama-marés de dez biótopos ao longo de um gradiente de salinidade de zero a 32 dentro da Baía de Guaratuba. Foram obtidas sete espécies, entre as quais, Uca mordax (Smith, 1870 que foi registrada somente em biótopos inundados por águas de baixas salinidades (de zero a 16. As demais espécies mostraram tolerância a uma ampla variação de salinidade, mas Uca maracoani (Latreille, 1802-1803 e Uca leptodactyla Rathbun, 1898 predominaram em águas mais salinas, de 14 a 32, enquanto U. burgersi Holthuis, 1967, Uca rapax (Smith, 1870, Uca thayeri Rathbun, 1900 e Uca uruguayensis Nobili, 1901 foram coletadas em mais de três biótopos e mostraram uma tendência ao eurihalismo, suportando salinidades de 4 a 32. Entretanto, outras características do substrato tais como porcentagem relativa de cascalho/areia/silte/argila, teor de matéria orgânica e presença de marismas, também, influenciaram a distribuição espacial destes caranguejos. U. leptodactyla foi registrada com densidade máxima de 240 ind.m-2, o mais alto valor conhecido.A study of the spatial distribution and abundance of fiddler crabs was carried out in Guaratuba Bay, Parana State, southern Brazil. Fiddler crabs were collected from 10 biotopes located along a salinity gradient from zero to 32 inside Guaratuba Bay (between 48°30'W-25°50'S and 48°45'W-25°54'S. Seven species were found, among which, Uca mordax (Smith, 1870 occurred only in biotopes inundated by low salinity water, from zero to 16. Remaining species tolerated wide range of salinity oscillation, but Uca maracoani (Latreille, 1802-1803 and Uca leptodactyla Rathbun, 1898 predominated in saltier waters, from 14 to 32, while U. burgersi Holthuis, 1967, Uca rapax (Smith, 1870, Uca thayeri Rathbun, 1900, and Uca uruguayensis Nobili, 1901 were collected in more

  15. Idade e crescimento de Callinectes danae e C. ornatus (Crustacea, Decapoda na Baía de Guanabara, Rio de Janeiro, Brasil Age and growth of Callinectes danae and C. ornatus (Crustacea, Decapoda in Guanabara Bay, Rio de Janeiro, Brazil

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    Karina A. Keunecke

    2008-06-01

    Full Text Available Callinectes danae Smith, 1869 e C. ornatus Ordway, 1863 constituem uma parcela importante da produção pesqueira na Baía de Guanabara. Ambas espécies compõem uma fração significativa da fauna-acompanhante sendo exaustivamente descartadas pelas pescarias de arrasto de camarões na costa brasileira. As curvas de crescimento de C. danae e C. ornatus foram calculadas por meio da análise de progressão modal. Para estimar os parâmetros biológicos, foi aplicado o modelo de crescimento de Bertalanffy e para estimar a longevidade foi usada a sua fórmula inversa. As curvas de crescimento foram: ♂ LC = 120 (1 - e -0,005t , ♀ LC = 113 (1 - e -0,005t; ♂ LC = 94 (1 - e -0,005t e ♀ LC = 110 (1 - e -0,005t , respectivamente para C. danae e C. ornatus. A longevidade alcançada para as duas espécies foi em torno de 2,5 anos, além de validar as curvas de crescimento. O estudo do crescimento em crustáceos é de extrema importância, pois além de fornecer a informação biológica básica para o grupo, os parâmetros estimados subsidiam o ordenamento e manejo pesqueiro das espécies exploradas.Callinectes danae Smith, 1869 and C. ornatus Ordway, 1863 constitute an important portion from the fishing products at Guanabara Bay. Both species compose a significant by-catch fraction being a lot discarded during shrimp trawlings along Brazilian coast. Growth curves were estimated by modal progression analysis. For the biological parameters it was applied the Bertalanffy growth function and for the age it was used its inverse formula. Growth curves of C. danae and C. ornatus were respectively: ♂ LC = 120 (1 - e -0,005t, ♀ LC = 113 (1 - e -0,005t; ♂ LC = 94 (1 - e -0,005t and ♀ LC = 110 (1 - e -0,005t. The age for both species reached around 2.5 years, besides to confirm growth curves. Growth study in crustaceans is very important, because besides supplying biological information it subsidizes fishery management for exploted species.

  16. Avaliação da degradação ambiental de parte do Seridó Paraibano Evaluation of the environmental degradation in the region of Seridó of Paraíba - Brazil

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    Humberto G. Candido

    2002-01-01

    Full Text Available O Seridó Oriental Paraibano tem se caracterizado, nos últimos anos, por uma intensa degradação de suas terras agrícolas como resultado dos efeitos do evento ENOS, refletidos em prolongados períodos de seca. A pesquisa em questão tratou da avaliação da degradação ambiental da região, estudando-se 947,81km² de seu território. Os parâmetros utilizados foram: vegetação, topografia, solo/geologia, ecologia, mecanização, área agrícola, densidade populacional (inclusive a migração e pecuarização, que definiram quatro níveis de degradação ambiental: baixo, moderado, grave e muito grave, confirmando a gravidade da ocorrência dos processos de degradação/desertificação das terras, uma vez que 44,86% da área estudada foram classificados com o índice grave de degradação e 2,24% em muito grave. Com as áreas classificadas como muito grave, está relacionada à formação dos chamados "núcleos de desertificação".The eastern region of Seridó, Paraíba, has been characterized in the last years by an intense degradation of the agricultural lands due to the extensive drought periods, caused by ENSO. This paper deals with the evaluation of the environmental degradation of the area, a territory of about 947.81 km². The parameters used to classify the degradation levels were vegetation, topography, soil/geology, ecology, mechanization, agricultural area, population density (including the migration and cattle raising, that defined four levels of environmental degradation: lower, moderate, serious and very serious. The analysis of these parameters confirmed the gravity of the occurrence of the degradation/desertification processes of the lands. For 44.86% of the studied area the degradation index was classified as serious and for 2.24% very serious. In the areas classified as very serious, the formation of the so called "desertification nucleus", was observed.

  17. Conhecimento popular sobre plantas medicinais em comunidades rurais de mata atlântica - Itacaré, BA, Brasil Folk knowledge about medicinal plants within rural communities in Atlantic Forest, Itacaré, Bahia State, Brazil

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    Erika de Paula Pedro Pinto

    2006-12-01

    Full Text Available O presente trabalho teve por objetivo o levantamento etnobotânico sobre o conhecimento e uso de plantas medicinais em duas comunidades rurais (Marambaia e Camboinha, localizadas em uma Área de Proteção Ambiental, na Mata Atlântica do Sul da Bahia, Brasil. Estas comunidades têm usado plantas medicinais como uma importante atividade terapêutica, a qual permite a auto-suficiência da população rural em relação aos cuidados com a saúde. Os dados foram coletados através de entrevistas com 26 famílias (24% do número total. As plantas medicinais coletadas (98 espécies foram catalogadas, identificadas e depositadas no Herbário Rio Clarense (HRCB. Elas pertencem a 40 famílias, dentre as quais Lamiaceae foi a mais citada. A maioria destas espécies (78% é cultivada, comumente nos quintais, pelos moradores locais. A folha é a parte da planta mais usada nos preparos medicinais. As espécies com maior número de citações são Chenopodium ambrosioides L. (mastruz e Lippia alba (Mill N.E. Br. (erva-cidreira, também associadas ao maior número de usos terapêuticos. Comparam-se no presente trabalho os índices de concordância de uso e de diversidade obtidos com os de outros estudos realizados em Florestas Tropicais no Brasil.This study's goal was to caryy out an ethnobotanical survey focusing on the knowledge and use of medicinal plants within two rural communities (Marambaia and Camboinha, which are situated in an Environmental Protection Area in Atlantic Forest of Southern Bahia, Brazil. These communities use medicinal plants as an important therapeutic activity, which permits the rural inhabitants to be self-sufficient regarding health care. Data were collected through interviews with 26 families (24% of the total. The medicinal plants collected (98 species were catalogued, identified and deposited at the Herbarium Rio Clarense (HRCB. They belong to 40 families so that Lamiaceae was the most cited. The majority of these species (78

  18. Distribuição probabilística do fator de escala de dois solos do Estado da Paraíba Probabilistic distribution of the scale factor of two soils in the State of Paraíba - Brazil

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    Antonio C. D. Antonino

    2004-12-01

    Full Text Available A distribuição probabilística do fator de escala da camada superficial, considerando-se a teoria dos meios fractais auto-similares, foi determinada para dois solos do Estado da Paraíba. O estudo foi realizado em duas áreas experimentais, com distintas condições de clima e solo, de aproximadamente 4 ha. A primeira na Fazenda Várzea Grande, no município de São João do Cariri, PB (7º23'S e 36º31'O com o solo classificado como Neossolo Flúvico enquanto a segunda, se localiza no Centro de Ciências Agrárias, da UFPB, no município de Areia, PB (6º58'S, 35º41'O, com o solo classificado como Latossolo Amarelo. Para estimar a condutividade hidráulica à saturação do solo, realizaram-se ensaios de infiltração com infiltrômetro de anel (15 cm de diâmetro na superfície do solo, em 80 pontos distribuídos regularmente em uma malha de 25 x 25 m. Para ambos os solos, o logaritmo dos fatores de escala que intervém nos fractais auto-similares segue uma distribuição de Gauss ou distribuição normal. A função de distribuição probabilística permitiu estimar a dimensão fractal do meio poroso, que representa os solos estudados.The probabilistic distribution of the scale factor of superficial layer was determined, considering the similar fractal theory for two soils in the Paraíba State. The study was performed at two experimental sites, with different climate and soil conditions of approximately 4 ha. The first was located in the Várzea Grande farm, in the municipality of São João do Cariri, PB (7º23'S e 36º31'O. The soil was classified as Fluvent. The second was located in the Centro de Ciências Agrárias, of the UFPB, in the municipality of Areia, PB (6º58'S, 35º41'W. The soil was classified as Oxisol. To estimate the soil saturated hydraulic conductivity, infiltration experiments were performed using a ring infiltrometer (15 cm diameter on the soil surface, at 80 points on a regular mesh of 25 x 25 m. For both soils

  19. Distribution, abundance and density estimates of franciscanas, Pontoporia blainvillei (Cetacea: Pontoporiidae, in Babitonga bay, southern Brazil Distribuição e estimativas de abundância e densidade de franciscanas, Pontoporia blainvillei (Cetacea: Pontoporiidae, na baía da Babitonga, sul do Brasil

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    Marta J. Cremer

    2008-09-01

    Full Text Available Pontoporia blainvillei (Gervais & d'Orbigny, 1844 is threatened throughout its distribution. The species can be found year-round in the Babitonga bay estuary (26º 02'-26º 28'S and 48º28'-48º50'W, in the north coast of the state of Santa Catarina, Brazil. Boat surveys were conducted in order to evaluate its abundance and density between 2000 and 2003. Sampling was random and stratified, with 46 transects in five sub-areas, comprising a total area of 160 km². Data collection was conducted following the linear transect method with distance sampling. A total of 1174.7 km was scanned and 38 groups were observed. Franciscanas were not uniformly distributed in Babitonga bay. Group size ranged from one to 13 animals (mean ± SD = 5.02 ± 3.62. Model 1 (Half-Normal showed the best fit to the data. The estimated population size was 50 animals and the density was 0.32 individuals km-2. Density estimates evaluated in the sub-areas where franciscanas occurred resulted in a density of 0.46 individuals km-2. Monitoring this population is of considerable importance due to the constant threats that this species faces in this bay.Pontoporia blainvillei (Gervais & d'Orbigny, 1844 ocorre ao longo de todo o ano no estuário da baía da Babitonga, no litoral norte de Santa Catarina, sul do Brasil. Foram realizadas amostragens com o objetivo de obter informações sobre sua abundância e densidade populacional nesta área entre os anos de 2000 e 2003. A amostragem foi aleatória e estratificada, com 46 transecções estabelecidas em cinco grandes sub-áreas, compreendendo 160 km². A coleta de dados foi conduzida utilizando o método de transecções lineares com amostragem de distância. Foram percorridos 1174,7 km e 38 grupos foram registrados. As franciscanas não apresentaram uma distribuição uniforme na baía da Babitonga. O tamanho de grupo variou de um a 13 animais (5,02 ± 3,62. O Modelo 1 (Meio-Normal promoveu o melhor ajustamento dos parâmetros. A

  20. Percepção ambiental das artesãs que usam as folhas de carnaúba (Copernicia prunifera H.E.Moore, Arecaceae) na Área de Proteção Ambiental Delta do Parnaíba, Piauí, Brasil / Environmental perception of the artisans that work with leaves of carnauba palm (Copernicia prunifera H.E.Moore, Arecaceae) in Delta do Parnaíba Environmental Protection Area, Piauí, Brazil

    OpenAIRE

    Irlaine Rodrigues Vieira; Maria Iracema Bezerra Loiola

    2014-01-01

    This study investigated the socioeconomic aspects and environmental perception of artisans that subsists making handicrafts of the leaves of carnauba palm (Copernicia prunifera H. E. Moore) in the Delta do Parnaíba Environmental Protection Area, located in Paranaíba municipality, Piauí state. We interviewed 36 artisans belonging to communities Fazendinha, Vazantinha and Pedra do Sal, using semi-structured questionnaires. In parallel, the plant management was followed. The crafts are made by w...

  1. Avaliação de clones de bananeira do subgrupo Cavendish (Musa acuminata, AAA em Cruz das Almas-BA Evaluation of banana Cavendish clones in Cruz das Almas City, Bahia State, Brazil

    Directory of Open Access Journals (Sweden)

    Sebastião de Oliveira e Silva

    2004-12-01

    Full Text Available Foram avaliados em Cruz das Almas-BA, em dois ciclos, 69 clones Cavendish coletados em São Paulo, Minas Gerais, Bahia e Santa Catarina, sendo 49 do tipo Nanicão e 20 do tipo Grande Naine. Os clones foram estabelecidos em área experimental da Embrapa Mandioca e Fruticultura utilizando-se um delineamento em blocos ao acaso com cinco repetições e cinco plantas por parcela. Foram utilizados a irrigação por microaspersão, o espaçamento de 3,0 m x 2,0 m e um sistema de condução com três plantas/touceira. Os requerimentos agronômicos foram aplicados conforme preconizados para o cultivo. Na avaliação dos clones, foram consideradas as seguintes variáveis: altura da planta em centímetros (AP; número de dias do plantio à colheita (ND; peso do cacho em quilogramas (PC; número de frutos por cacho (NF; e comprimento do fruto em centímetros (CF. Pelos resultados obtidos, verificou-se uma variabilidade média em todas as variáveis avaliadas. Por apresentarem caracteres superiores, foram selecionados cinco clones de Grande Naine (G.N. Taperão, G.N.Rossete, G.N. Willians, G.N. Magário, G.N. SC-074 e quatro de Nanicão (N. IAC Abóbada Verde, N. Rossete, N. SC-0008 e N. SC-063.Sixty-nine clones of Cavendish type bananas (49 Nanicão and 20 Grande Naine collected in the States of São Paulo, Minas Gerais, Bahia and Santa Catarina were evaluated. The clones were established in an experimental area at the Cassava and Fruit Crops Research Center - EMBRAPA, using micro-aspersion irrigation, in plants spaced at 3.0 m x 2.0 m, and conducted with three plants/bushes. Random blocks were used with five replications and five plants per plot. All cultural requirements for the crop were carried out. For the clone evaluations, the following variables were considered: plant height in centimeters (PH; number of days from planting to yield (ND; weight of bunch in kilograms (WB; number of fruits per bunch (FB and length of fruit in centimeters (LF. The

  2. Seqüência do tratamento de curta duração da tuberculose pulmonar em Unidades Sanitárias do Vale do Paraíba, 1980-1981, São Paulo, Brasil Evaluation of short-term chemotherapy for pulmonary tuberculosis in the Health Institutions of the Vale do Paraíba, 1980-1981, S. Paulo, Brazil

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    Marília Belluomini

    1984-12-01

    Full Text Available Estuda-se a seqüência do tratamento de curta duração em doentes com tuberculose pulmonar, inscritos e com alta no período de outubro de 1980 a outubro de 1981, nas Unidades Sanitárias do Departamento Regional de Saúde do Vale do Paraíba - DRS-3 - da Secretaria da Saúde do Estado de São Paulo, Brasil. Os dados obtidos pela verificação dos prontuários dos doentes foram analisados sob os seguintes aspectos: distrito sanitário, idade e sexo do paciente, tipo de alta, esquema de tratamento, hospitalização, intolerância medicamentosa e tempo de negativação do escarro. Dos 308 doentes que constituíram a população de estudo, 254 (82,5% tiveram alta por cura, 21 (6,8% por abandono e 33 (10,7% por mudança de diagnóstico, óbito ou transferência. Os resultados confirmam a efetividade do tratamento encurtado da tuberculose pulmonar com os esquemas recomendados, apresentando na área trabalhada baixas taxas de abandono e de hospitalização e resultados bastante favoráveis quanto à negativação dos bacilíferos.The results of the short-term chemotherapy for pulmonary tuberculosis performed on patients who were admitted to the Health Clinics of one of the S. Paulo State's Health Divisions and who completed the treatment during the period from October 1980 to October 1981 are shown. Such aspects of the records as Health Districts, patient's age and sex, success and regimen of treatment, hospitalization, drug toxicity and smear negativity period were analysed. The findings confirm the effectiveness of short-term chemotherapy under program conditions as corroborated by its acceptability to the patients, the success achieved and the benefits in the decrease of the number of admissions to hospital and in the reduction of the sources of infection within a shorter period.

  3. Marketing arquivístico: uma análise curricular do curso de graduação em arquivologia da Universidade Federal da Paraíba / Archivology and marketing: a curricular analysis of the archivology undergraduation course of the Paraíba Federal University, Brazil

    Directory of Open Access Journals (Sweden)

    Jobson Louis Santos de Almeida

    2010-07-01

    Full Text Available Abordagem teórica a partir de um estudo de caso. Busca compreender a real necessidade de se aplicar os conceitos e técnicas de Marketing na área da Arquivologia. Pretende-se identificar o grau de relevância que é dado para a disciplina de Marketing nas pesquisas e estudos arquivísticos, possibilitando, portanto, a construção de um referencial teórico que auxilie na compreensão e aceitação por parte de pesquisadores e profissionais da inserção do Marketing como disciplina necessária na formação profissional dos arquivistas. Utiliza o método hipotético–dedutivo, aplicando-se a técnica de observação indireta (pesquisa documental e bibliográfica. Analisa o Projeto Político-Pedagógico do Curso de Graduação em Arquivologia da Universidade Federal da Paraíba, e os periódicos científicos de maior destaque na área de Ciência da Informação. Foram realizadas consultas a profissionais e docentes que trabalham com questões arquivísticas contemporâneas. Após análise dos dados coletados, a pesquisa resultou na comprovação do argumento de que com a aplicação das técnicas de marketing pelo profissional arquivista, a unidade de informação (arquivo, passa a ser mais reconhecida como elemento indispensável à exeqüibilidade das funções administrativas. Para tanto, faz-se necessário que este (o profissional, esteja freqüentemente atualizado com as novas técnicas arquivísticas desenvolvidas em âmbito acadêmico, possibilitando a oferta de serviços de qualidade. O marketing pode se tornar uma ferramenta estratégica de vantagem competitiva para este profissional de potencial ainda desconhecido pelo mercado.

  4. Plasmid composition and virulence-associated factors of Yersinia pestis isolates from a plague outbreak at the Paraíba State, Brazil Composição plasmidial e fatores associados à virulência em cepas de Yersinia pestis de um surto de peste no Estado da Paraíba, Brasil

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    Nilma Cintra Leal

    1989-10-01

    Full Text Available Pathogenic Yersinia pestis isolates were collected during a plague outbreak at the Paraiba State in 1986. The Y. pestis isolates were investigated for the presence of virulence-associated factors and plasmid content. All strains analysed were proficient in the expression of the VW and fraction 1 antigens, pigment adsorption and pesticin-fibronolysin-coagulase production. A similar plasmid profile composed by four plasmid with molecular weight of 60, 44, 14.9, and 6.4 Megadaltons (MD was found in all strains. DNA cleavage with EcoRI restriction enzyme further demonstrated the uniform plasmid content of the Y. pestis isolates. Seven additional Y. pestis strains, previously isolated in the same region but in an endemic state, showed the same plasmid fingerprint. The lack of any detectable difference between epidemic and endemic isolates as well as the value of plasmid fingerprints in epidemiology of Y. pestis is discussed.Cepas patogênicas de Yersinia pestis foram coletadas durante um surto de peste no Estado da Paraíba em 1986. Os isolados de Y. pestis foram analisados quanto a presença de fatores associados à virulência e conteúdo plasmidial. Todas as linhagens analisadas foram proficientes na expressão dos antígenos VW e fração 1, além de possuírem capacidade de adsorção de pigmentos e produção de pesticina-fibrinolisina-coagulase. Um perfil plasmidial semelhante composto por quatro plasmídeos com peso molecular de 60, 44, 14.9, e 6.4 MD foi encontrado em todas as linhagens. A clivagem do DNA plasmidial com a enzima de restrição EcoRI demonstrou o conteúdo plasmidial uniforme dos isolados de Y. pestis. Sete outras linhagens de Y. pestis, isoladas previamente no mesmo local mas em condição endêmica, mostraram o mesmo perfil plasmidial. A falta de diferenças entre os isolados epidêmicos e endêmicos assim como o uso do perfil plasmidial na epidemiologic de Y. pestis e discutida.

  5. Country nuclear fuel cycle profile: Brazil

    International Nuclear Information System (INIS)

    Brazil has two operating nuclear power plants: Angra 1, a 657 MW(e) Westinghouse PWR and Angra 2, a 1350 MW(e) Siemens KWU PWR. Both units are owned and operated by ELETRONUCLEAR. Angra 1 started operation in March 1982 (commercial operation since December 1984) and Angra 2 started commercial operation in February 2001. In 2002 the two plants produced about 4% of the country's electricity supply, of which more than 88% comes from hydroelectric plants. Brazil has not yet decided about its nuclear fuel cycle policy. The Pocos de Caldas CIPC mining and ore processing plant was closed in 1997. The Lagoa Real area Caetite unit started operation in 2000 with an initial capacity of 340 t U/a. As part of the Brazilian Navy's nuclear propulsion programme, a UF6 pilot plant with a nominal production capacity of 40 t U/a is under construction at the Navy Research Institute (CTMSP) at Ipero, 100 km from Sao Paulo. There are no plans to install a commercial plant in the near future. As part of its nuclear propulsion programme the Brazilian Navy has installed a demonstration enrichment centrifuge pilot plant at Ipero. Recently the Brazilian Government decided to start the industrial implementation of the ultracentrifuge process developed by the CTMSP in the Resende industrial plant in the State of Rio de Janeiro. The complete set of units is intended to be operating in 8 years to meet the needs of Angra 1 and partially those of Angra 2 and 3 (∼300 t SWU/a). A future increase in this capacity will depend on technical evaluation and resource availability. The two unit fuel fabrication plant of INB is located at Resende, Rio de Janeiro State, and has a production capacity of 280 t U/a. The fuel fabrication plant has been refurbished and produces the fuel rods and fuel elements for Brazilian nuclear reactors at its unit I. Unit II, which is responsible for pellet fabrication, has been operating since June 1999 with a capacity of 120 tonnes of UO2 pellets/a. The UO2 powder

  6. Alteração estrutural de uma área florestal explorada convencionalmente na bacia do Paraíba do Sul, Minas Gerais, nos domínios de Floresta Atlântica Structural changes in a conventionally exploited forest in the Paraíba do Sul basin, state of Minas Gerais, Brazil, in the Atlantic Forest domain

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    Ana Patrícia Cota Gomes

    2004-06-01

    Full Text Available O presente estudo, realizado no município de Matias Barbosa,MG, na Fazenda Paciência, teve como objetivo avaliar as alterações estruturais ocorridas em uma Floresta Estacional Semidecidual, nos domínios de floresta Atlântica, em decorrência das atividades de exploração convencional de um plano de manejo. Para isso, foi utilizado um trecho contínuo de floresta que teve uma área explorada há seis anos e outra área não-explorada. Foram lançadas parcelas para estudo da vegetação arbórea, nas quais se avaliou a sua estrutura. Os dados foram analisados de forma comparativa, considerando-se a situação observada na área de floresta não-explorada como desejável. O resultado do estudo indicou que a atividade de exploração madeireira realizada na Fazenda Paciência tem levado a alterações significativas na estrutura, além de um depauperamento do valor comercial do estoque remanescente da área de floresta explorada, podendo levar a um comprometimento dos recursos da comunidade florestal.The objectives of this study were to evaluate the structural changes caused by the activities of a conventional management plan in a semideciduous forest in the Atlantic Forest domain. The study was conducted in the Fazenda Paciência, municipality of Matias Barbosa, Minas Gerais state, Brazil. A continuous stretch of forest was analyzed, which contained areas that were exploited six years ago and areas that remained untouched. Plots were established to survey the floristic and structural composition of the arboreal vegetation. Data were analized in a comparative way and the state of the non-exploited forest was considered as the desirable one. The study results indicated that the harvesting as it was done at the Fazenda Paciência was causing significant changes in the floristic and structural composition, aside from decreasing the commercial value of the remaining stock, which could endanger the forest resources of the area.

  7. Determinantes da experimentação do cigarro e do início precoce do tabagismo entre adolescentes escolares em Salvador (BA Determinants of smoking experimentation and initiation among adolescent students in the city of Salvador, Brazil

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    Adelmo de Souza Machado Neto

    2010-12-01

    among adolescent students (11-14 years of age. METHODS: A cross-sectional, population-based study involving adolescent (middle and high school students at public and private schools in the city of Salvador, Brazil. A multiple-stage sampling protocol was used. The participants completed an anonymous, voluntary, self-report questionnaire. The dependent variables were age at smoking experimentation and smoking initiation. Sociodemographic and educational variables, as well as those related to media influence and alcohol consumption, were considered independent variables. Multivariate logistic regression analysis was performed, followed by analysis of the fit of the final logistic regression model. RESULTS: The prevalence of smoking experimentation was 16.1% (95% CI: 15.1-17.2. Of the 5,347 students evaluated, 757 had experimented with cigarettes, and 462 (61.2% of those 757 had done so before the age of 15 (mean age at smoking experimentation, 13.9 ± 1.8 years. Smoking initiation was associated with paternal smoking (OR = 1.53; 83% CI = 1.07-2.19 and with media influence (OR = 2.43; 83% CI: 1.46-4.04. Smoking experimentation was associated with alcohol consumption (OR = 6.04; 83% CI: 4.62-7.88, having friends who smoke (OR = 3.18; 83% CI: 2.54-3.99, having a boyfriend/girlfriend who smokes (OR = 3.42; 83% CI: 1.78-6.56, and coercive/aggressive educational interventions by the parents (OR = 1.60; 83% CI: 1.26-2.04. CONCLUSIONS: Alcohol consumption and the influence of peers and relatives who smoke showed a strong association with smoking experimentation. Paternal smoking and media influence were found to increase the chances of adolescent smoking.

  8. High-resolution thermal expansion measurements of BaCuSi4O10 and BaCuSi2O6

    Science.gov (United States)

    Masunaga, Sueli; Rebello, Alwyn; Neumeier, J. J.

    2014-03-01

    BaCuSi4O10 and BaCuSi2O6 were used in many ancient Chinese artifacts as synthetic pigments, and recently named as Han Blue and Han Purple, respectively. Besides being important synthetic pigments of ancient and modern times, these compounds have attracted scientific and technological interest due to their luminescent properties. Moreover, Han Purple is a spin-dimer compound with an interesting phase diagram and a potential solid state device for exploring quantum effects in magnetic field induced Bose-Einstein condensation. In this work, we study BaCuSi2O6 and BaCuSi4O10 single crystals grown by floating zone method and flux growth technique, respectively. The results of thermal expansion, specific heat, and magnetization measurements of these compounds will be presented in detail. This work is supported by CNPq-Brazil under Grant No 237050/2012-9 and National Science Foundation DMR-0907036.

  9. Decay of 120Ba

    International Nuclear Information System (INIS)

    The decay of 120Ba has been studied with an on-line isotope separator. Its half-life was determined to be t1/2=24±2 s. A decay scheme is proposed, based on γ-γ, γ-X, and γ-β+ coincidence measurements, which takes account of all 16 observed γ rays. The total decay energy was measured to be QEC=50±0.3 MeV

  10. Life-limiting mechanisms in Ba-oxide, Ba-dispenser and Ba-Scandate cathodes

    Science.gov (United States)

    Gaertner, G.; Barratt, D.

    2005-09-01

    Ba-oxide, Ba-dispenser and Ba-Scandate cathodes have been continuously improved in their emission performance in the past decades. Ba-oxide and Ba-dispenser cathodes are also the dominant types of thermionic cathodes used in most vacuum tube applications. When improvements in emissive properties are introduced, their impact on cathode life - where several years in a vacuum tube environment are typically required - also needs to be known. Hence, the investigation of cathode life-limiting effects is the basis of accelerated life predictions and of further cathode improvement. In this contribution, the main effects limiting the operating life of Ba/BaO-based thermionic cathodes are discussed, especially related to intrinsic dispensation and resupply to the emissive surface. Emission poisoning induced by adsorption of poisonous gases will not be addressed here. We will stress common points and point out the differences between the three types.

  11. Diphyllobothriasis, Brazil

    OpenAIRE

    Sampaio, Jorge Luiz Mello; Piana de Andrade, Victor; Lucas, Maria da Conceição; Fung, Liang; Gagliardi, Sandra Maria B.; Santos, Sandra Rosalem P.; Mendes, Caio Marcio Figueiredo; Eduardo, Maria Bernadete de Paula; Dick, Terry

    2005-01-01

    Cases of human diphyllobothriasis have been reported worldwide. Only 1 case in Brazil was diagnosed by our institution from January 1998 to December 2003. By comparison, 18 cases were diagnosed from March 2004 to January 2005. All patients who became infected ate raw fish in sushi or sashimi.

  12. Análise físico-química do óleo-resina e variabilidade genética de copaíba na Floresta Nacional do Tapajós Physico-chemical analysis of the oleoresin and genetic variability of copaiba in the Tapajós National Forest, Brazil

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    Ederly Santos Silva

    2012-11-01

    Full Text Available O objetivo deste trabalho foi caracterizar o óleo-resina da copaíba (Copaifera reticulata e estimar, por meio de marcadores microssatélites, a variabilidade genética da espécie na Floresta Nacional do Tapajós, PA. A amostragem foi realizada em duas áreas, distanciadas de 5 km, em 136 árvores. A diversidade genética foi avaliada com seis marcadores microssatélites derivados de C. langsdorffii, e o óleo obtido de 30 árvores (15 de cada área foi caracterizado em termos físicos e químicos. O óleo C. reticulata apresenta aspecto líquido, fino, odor fraco e de coloração amarelo-dourada (73,3% das plantas, com viscosidade muito variável (18 a 187 Pa-s e densidade média de 0,975±0,049 g cm-3. O índice de acidez variou de 9,62 a 10,17 mg g-1 de KOH e o de saponificação de 100,63 a 109,84 mg g-1. A análise molecular identificou 78 alelos, com média de 13 por loco. A heterozigosidade esperada variou 0,59 a 0,85 (média de 0,75, com nível de endogamia de 0,375 a 0,419. Houve pouca diferenciação genética entre as populações das diferentes áreas de coleta (F ST = 0,030, mas a variabilidade foi maior entre os grupos genéticos detectados pelo programa Structure (F ST = 0,070. Essa maior variabilidade indica que não há ameaças à conservação genética da copaíba, em médio prazo.The objective of this work was to characterize the oleoresin of copaiba (Copaifera reticulata and to estimate genetic variability of the species in the Tapajós National Forest, PA, Brazil, using microsatellite markers. Sampling was performed in two areas, 5 km apart, in 136 trees. Genetic diversity was evaluated with six microsatellite markers derived from C. langsdorffii, and the oleoresin obtained from 30 trees (15 from each area was physically and chemically characterized. Oleoresin from C. reticulate has a liquid, thin aspect, with a weak odor and yellowish-gilded color (73.3% of the plants, highly variable viscosity (18 to 187 Pa-s, and mean

  13. Legal aspects related to the phases of decommissioning, operation, and construction of uranium mines in Brazil owned by Indústrias Nucleares do Brasil - INB

    International Nuclear Information System (INIS)

    Indústrias Nucleares do Brasil – INB is a Brazilian company active in the states of Minas Gerais, Bahia, Ceará, through its uranium mining and milling plants, each in a different phase of licensing. The Caldas facility in Minas Gerais is the first uranium mine to be decommissioned. The Caetité facility in Bahia is in operation and INB is currently seeking to license the changed mining method from open pit to underground mining, the first ever in Brazil. The Santa Quitéria Project, in the implementation phase, is also unique because the deposit is characterized by the presence of uranium associated with phosphate, and its economic feasibility is contingent upon the exploitation of the associated phosphate. The licensing conduct and requirements for these plants are the subject of a study and work, by both the project owner and the regulatory bodies. But in the presented cases, the licensing process has not shown to be sufficient to prevent questions about the project by the affected community. Facts occurred in connection with INB have evidenced the necessity for significant investment to be made in environmental education and for conducting an important work on risk perception and communication, so as to facilitate integrating the project owner with the neighboring community. (author)

  14. Padrão de atividade e comportamento de forrageamento do morcego-pescador Noctilio leporinus (Linnaeus (Chiroptera, Noctilionidae na Baía de Guaratuba, Paraná, Brasil Activity pattern and foraging behavior of bulldog-bat Noctilio leporinus (Linnaeus, (Chiroptera, Noctilionidae in Guaratuba Bay, Paraná State, Brazil

    Directory of Open Access Journals (Sweden)

    Marcelo O. Bordignon

    2006-03-01

    Full Text Available Entre 18 de janeiro a 16 de dezembro de 1999 foi estudado o comportamento de forrageamento e o padrão de atividade do morcego-pescador Noctilio leporinus (Linnaeus, 1758, em uma área de manguezal na Baía de Guaratuba, Sul do Brasil. Os grupos de N. leporinus observados permaneceram em atividade ao longo de todo o período noturno, mas com um aparente padrão bimodal. Durante os meses de abril a setembro, N. leporinus inicia a sua atividade geralmente às 18:00 h, uma hora mais cedo do que durante os meses de outubro a março, quando inicia sua atividade geralmente às 19:00 h. O comportamento de predação sobre os cardumes de peixes mostrou variações quanto ao local de forrageamento ao longo do período de atividade. Em baixos níveis de maré, os grupos de morcegos pescaram longe da margem em águas mais profundas, mas nos níveis de maré alta os grupos de morcegos permaneceram pescando sempre junto à margem, em águas mais rasas. Este padrão de comportamento em N. leporinus parece ser determinado pelo padrão de deslocamento dos cardumes de peixes na área de estudo.From January 18 to December 16 of 1999 the foraging behavior and activity pattern of fishing bat Noctilio leporinus (Linnaeus, 1758 were studied in mangrove ecosystem of Guaratuba Bay, southern Brazil. The groups of N. leporinus observed remained active during all nightly period but showed an apparent bimodal pattern. During April and September N. leporinus generally begin their activity at 18:00h, one hour earlier than October to March months, when their activity started at 19:00 h. The foraging behavior on fish shoal varied spatially along all the activity period. During low tide level the bat groups remained fishing distant from margin on deeper water, but during high tide level the bats were always observed fishing close to the margin on flat water. This pattern in foraging behavior of N. leporinus appears to be determined by the fish shoal displacement pattern in

  15. Reprodução do bagre amarelo, Cathorops spixii (Agassiz (Siluriformes, Ariidae, da Baía de Pinheiros, região estuarina do litoral do Paraná, Brasil Reproduction of the Madamango sea catfish, Cathorops spixii (Agassiz (Siluriformes, Ariidae, of the Pinheiros Bay, estuarine coastal area of Paraná, Brazil

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    Luís F. Fávaro

    2005-12-01

    Full Text Available O presente estudo investigou a biologia reprodutiva do bagre amarelo Cathorops spixii (Agassiz, 1829 na Baía de Pinheiros, litoral do Paraná, Brasil. Os peixes foram coletados mensalmente no período de junho de 2003 a maio de 2004, com rede de arrasto de fundo. De cada exemplar foram tomados os dados de comprimento total, peso total, sexo e peso da gônada. As seis fases de desenvolvimento ovocitário (ovogênese e os cinco estádios de desenvolvimento ovariano (escala de maturidade foram determinadas por análises microscópicas dos ovários. Através dos valores individuais e media mensais do Índice gônado-somático (IGS tratado para sexos separados, da freqüência relativa dos estádios de desenvolvimento ovariano e das análises histológicas durante o período de estudo foi possível determinar que o período reprodutivo de C. spixii dá-se entre os meses de setembro e novembro. Fêmeas apresentando ovários desovados ou em recuperação foram registradas nos meses de novembro a abril, com altos percentuais no período de dezembro a março. A desova foi caracterizada como sendo do tipo total.The present study investigated the reproductive biology of Cathorops spixii (Agassiz, 1829 in Pinheiros Bay, littoral of Paraná State, Brazil. Fishes were captured monthly from June 2003 to May 2004 by using bottom trawls. For each individual, total body length, total weight, sex, and gonadal weight were recorded. The oogenesis (six ovarian follicle phases of development and gonadal development stages (five stages were also defined based on the histological examination of the ovaries. It was defined that the reproductive period of C. spixii extends from September to November, based on the analyses of individual gonadosomatic index (GSI values distribution in relation to the sampling periods, on the monthly variation of the GSI mean values (Curve of Maturation, both for males and females, and on the monthly variation of the relative frequencies of

  16. Duas novas espécies de Enchenopa Amyot & Serville (Hemiptera, Membracidae do semi-árido do Estado da Paraíba, Brasil Two new species of Enchenopa Amyot & Serville (Hemiptera, Membracidae from the semi-arid region of Paraiba State, Brazil

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    Rembrandt Romano de A. Dantas Rothéa

    2007-03-01

    Full Text Available Enchenopa eunicea sp. nov. e Enchenopa minuta sp. nov. (ambas de São José dos Cordeiros, Paraíba, Brasil são descritas e ilustradas.Enchenopa euniceae sp. nov. and E. minuta sp. nov. (both from São José dos Cordeiros, Paraíba, Brasil are described and illustrated.

  17. Population and feeding structure of Steindachnerina notonota Miranda-Ribeiro, 1937 (Actinopterygii, Characiformes, Curimatidae in Taperoá II dam, semi-arid region of Paraíba, Brazil Estrutura populacional e alimentar de Steindachnerina notonota Miranda Ribeiro, 1937 (Actinopterygii, Characiformes, Curimatidae no Açude Taperoá II, na região do semi-árido da Paraíba, Brasil

    Directory of Open Access Journals (Sweden)

    Ana Karla Araujo Montenegro

    2011-09-01

    Full Text Available AIM: The present study investigated population structure, weight-length relationships, sex ratio and associations between feeding activity and reproductive period, diet and alimentary regime of Steindachnerina notonota at Taperoá II dam, semi-arid region of Paraíba State. METHODS: The region has the lowest pluviometric rates of Brazil. Fishes were collected during six sampling periods (October and December/2005, and March, June, August and October of 2006 encompassing two dry periods, and one rainy period. Cast, seine and gill nets were used to collect the individuals. RESULTS: Throughout the study period 120 individuals were collected, with total length ranging between 2.2 and 10.7 cm and weight between 0.31 and 43.1 g. A recruitment period, identified due to a higher abundance of small individuals in the population, was observed in the beginning of the rainy period of 2006, lasting until the beginning of the dry season. S. notonota showed a negative allometric growth type, i.e., individuals 'elongate' during their development. A significantly higher proportion of females were observed throughout the study period. The relationship between feeding and reproductive activities were not significant, given that individuals showed high feeding rates regardless of the intensity of their reproductive activities. Although the diet of S. notonota comprised several items such as plant debris, eggs, organic matter, phytoplankton, zooplankton, Nematoda, Ostracada, Conchostraca, among others, the most important feeding item was detritus, suggesting a predominant detritivirous feeding habit. CONCLUSIONS: Biological aspects of S. notonota observed in the present study suggest that this species has potential to attain great population sizes, as consequence of both diet and feeding dynamics, as well as its reproductive characteristics and growth type.OBJETIVO: O presente estudo investigou a estrutura da população, a relação peso-comprimento, a raz

  18. Variações no comprimento dos indivíduos de uma população do mexilhão dourado, Limnoperna fortunei (Mollusca: Bivalvia: Mytilidae), ao longo do ano, na Praia do Veludo, Lago Guaíba, Rio Grande do Sul, Brasil Length variation over a one-year period in specimens of the golden mussel, Limnoperna fortunei (Mollusca: Bivalvia: Mytilidae) from Veludo Beach, Guaíba Lake, Rio Grande do Sul, Brazil

    OpenAIRE

    Cintia P. dos Santos; Maria Cristina D. Mansur; Norma L. Würdig

    2008-01-01

    The individual size of Limnoperna fortunei (Dunker, 1857) was evaluated twice a month, for a year, based on samples from Veludo Beach (30º12'35"S, 51º11'68"W) in Guaiba Lake, southern Porto Alegre, Brazil. Physical and chemical data on water quality, such as temperature, transparency, depth, pH, dissolved oxygen, phosphorus, nitrogen, chlorophyll "a", and conductivity were also recorded. Adult samples were collected from underwater "sarandi" branches, Cephalanthus glabratus (Spreng) K. Schum ...

  19. Fatores de risco para visitas à emergência por exacerbações de asma em pacientes de um programa de controle da asma e rinite alérgica em Feira de Santana, BA Risk factors for ER visits due to asthma exacerbations in patients enrolled in a program for the control of asthma and allergie rhinitis in Feira de Santana, Brazil

    Directory of Open Access Journals (Sweden)

    Heli Vieira Brandão

    2009-12-01

    Full Text Available OBJETIVO: Determinar os fatores de risco para atendimentos de emergência por exacerbações da asma em pacientes acompanhados em um centro de referência. MÉTODOS: Estudo de coorte prospectiva de 253 crianças e adultos com asma e monitorados por 12 meses no Centro de Referência do Programa de Controle da Asma e Rinite Alérgica de Feira de Santana, BA. RESULTADOS: As exacerbações foram frequentes, e 36,5% dos pacientes buscaram assistência em serviços de emergência no período de 12 meses. Os fatores de risco associados às exacerbações foram idade > 20 anos (OR = 1,34; IC95%: 1,06-1,70; residência em zona urbana (OR = 1,19; IC95%: 1,06-1,33; baixa escolaridade (OR = 1,53; IC95%: 1,00-2,39; asma grave (OR = 1,65; IC95%: 1,24-2,18; e rinite crônica (OR = 2,20: IC95%: 1,00-4,80. CONCLUSÕES: Ter de rinite crônica, asma mais grave e baixa escolaridade foram os principais fatores de risco para atendimentos de emergência por exacerbações da asma nesta coorte. Esses resultados são semelhantes àqueles descritos para pacientes com asma sem tratamento regular.OBJECTIVE: To determine the risk factors for ER visits due to asthma exacerbations in patients monitored at a referral center. METHODS: Prospective cohort study of 253 outpatients (children and adults with asthma who were monitored for 12 months at the Referral Center of the Program for the Control of Asthma and Allergic Rhinitis in the city of Feira de Santana, Brazil. RESULTS: Exacerbations were common, and 36.5% of the patients sought ER treatment within the twelve-month period. The risk factors for asthma exacerbations were being over 20 years of age (OR = 1.34: (95% CI: 1.06-1.70, residing in an urban area (OR = 1.19; 95% CI: 1.06-1.33; having a low level of education (OR = 1.53: 95% CI: 1.00-2.39; having severe asthma (OR = 1.65; 95% CI: 1.24-2.18; and having chronic rhinitis (OR = 2.20; 95% CI: 1.00-4.80. CONCLUSIONS: In this cohort, having chronic rhinitis, having asthma

  20. Branchial histopathological study of Brachyplatystoma rousseauxii (Castelnau, 1855 in the Guajará bay, Belém, Pará State, Brazil = Estudo histopatológico da brânquia de Brachyplatystoma rousseauxii na baía do Guajará, Belém, Estado do Pará, Brasil

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    Caroline da Silva Montes

    2010-01-01

    Full Text Available This work analyzes the morphological alterations in Brachyplatystoma rousseauxii gills and evaluates whether this species can be considered an environmental monitoring biomarker of Guajará Bay. Sampling was carried out in four areas around Belém, Brazil, in four annual periods: dry/wet season, wet season, wet/dry season and dry season. Water pH, temperature and suspended material were evaluated. A total of 36 specimens were collected. The second right gill arch of each animal was removed and immediately fixed and processed for histopathology analysis with light microscopy. The physicochemical analysis of the water during the study period showed slight acidity, temperature and material in suspension within normal levels. Histopathological analysis of the gills from 14 individuals from area I presented no alterations, and only 2 individuals from this area presented some significant type of alteration. In contrast, all individuals captured in areas II, III, and IV presented at least one of the following alterations: aneurism-like alterations, epithelial elevation, infiltration, cell proliferation and cell hypertrophy. Based on the gill histopathological analysis, this organ is considered a good biomarker and the native species B. rousseauxii could be used as a bioindicator for environmental monitoring.O objetivo deste trabalho foi analisar as alterações morfológicas branquiais em Brachyplatystoma rousseauxii e verificar se esta espécie pode ser considerada como indicador biológico para o monitoramento ambiental da baía do Guajará. As coletas aconteceram em quatro áreas ao redor da cidade de Belém: I (controle, II, III e IV (forte influência antrópica, nos quatro períodos anuais: estação seco/chuvoso, estação chuvoso, estação chuvoso/seco e estação seco. Nesses períodos foram medidos pH, temperatura e material em suspensão. Foram capturados 36 exemplares. O segundo arco branquial direito de cada animal foi retirado

  1. Reproductive biology of the sesarmid crab Armases rubripes (Decapoda, Brachyura from an estuarine area of the Sahy River, Sepetiba Bay, Rio de Janeiro, Brazil Biologia reprodutiva do caranguejo sesarmídeo Armases rubripes (Decapoda, Brachyura de uma área estuarina do rio Sahy, Baía de Sepetiba, Rio de Janeiro, Brasil

    Directory of Open Access Journals (Sweden)

    Giovana V. Lima

    2006-03-01

    Full Text Available The aim of this work was to gain knowledge about reproductive biology of the crab Armases rubripes (Rathbun, 1897 from an estuarine area of the Sepetiba Bay. Samples were taken monthly from February 2003 to January 2004 in the Sahy River estuary (22º56'S; 44º01'W, Rio de Janeiro, Brazil. The crabs were collected by hand during 15-minute catch-effort sessions conducted by two people. In the laboratory, the specimens were separated by sex, carapace width was measured and gonadal stage was checked macroscopically. A total of 830 individuals were caught - 304 males, 373 females (60 ovigerous females and 153 juveniles. The ovigerous females were found almost year-round, except in November and April, showing a continuous reproductive period. They presented a size range from 8.2 to 15.0 mm carapace width (12.1 ± 1.7 mm. Color and macroscopical aspects determined five gonadal stages for males and females (immature, rudimentary, intermediary, developed and resting. First sexual maturity was estimated at 6.5 mm of carapace width for males and 8.1 mm for females. Individual fecundity varied from 200 to 11,460 eggs (4,458 ± 2,739 eggs. Mean egg size was 0.248 ± 0.026 mm, varying from 0.213 to 0.333 mm, while the volume ranged from 0.0051 to 0.0188 mm³ (0.0082 ± 0.0029 mm³.O objetivo desse trabalho foi obter informações sobre a biologia reprodutiva do caranguejo Armases rubripes (Rathbun, 1897 numa área estuarina da Baía de Sepetiba. Exemplares foram obtidos mensalmente de fevereiro 2003 a janeiro 2004 no estuário do rio Sahy (22º56'S; 44º01'W, Rio de Janeiro, Brasil. Os caranguejos foram coletados manualmente durante 15 minutos por estação de coleta e por dois coletores. Em laboratório, os indivíduos foram separados por sexos, mensurados em relação à largura da carapaça e os estágios gonadais observados macroscopicamente. Um total de 830 indivíduos foram obtidos - 304 machos, 373 fêmeas (60 fêmeas ovígeras e 153 juvenis. As f

  2. Brazil; Selected Issues Paper

    OpenAIRE

    International Monetary Fund

    2015-01-01

    This Selected Issues paper examines infrastructure investment in Brazil. Brazil has inferior overall infrastructure quality relative to almost all its export competitors. Brazil’s infrastructure endowment ranks low by international standards, and its low quality affects productivity, market efficiency, and competitiveness. Areas in which Brazil’s competitiveness has lagged include, but are not limited to, education, innovation, governance, and justice. Brazil’s infrastructure gap has be...

  3. Análise morfométrica como subsídio ao zoneamento territorial: o caso das bacias do Córrego Carioca, Córrego do Bação e Ribeirão Carioca na região do Alto Rio das Velhas-MG Morphometric analises as subsidy to the territorial zoning of the Itabirito River, tributary of the rio das Velhas, Minas Gerais, Brazil

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    Clibson Alves dos Santos

    2008-03-01

    Full Text Available A região do Alto Rio das Velhas está inserida no contexto da província geológica do Quadrilátero Ferrífero, na região Central de Minas, sendo caracterizada pelo uso conflituoso dos terrenos, com intenso desenvolvimento da mineração, crescente ocupação urbana e forte expansão imobiliária. Os diversos processos erosivos, os mananciais assoreados e as áreas degradadas são outros problemas ambientais observados. Esse estudo analisou as características morfométricas da rede de drenagem e do relevo das bacias do Córrego Carioca, Córrego do Bação e Ribeirão Carioca, afluentes do rio Itabirito, tributário do rio das Velhas, visando a auxiliar na compreensão da vulnerabilidade natural dos terrenos às intervenções antrópicas, na compreensão dos processos erosivos e a na definição do zoneamento territorial, além de complementar análises realizadas em outros estudos, objetivando a compreensão da dinâmica superficial na área. As bacias do Córrego do Bação e Ribeirão Carioca mostraram índices morfométricos que as caracterizam como as mais vulneráveis às intervenções antrópicas e aos processos erosivos. devido à morfologia suave, a bacia do ribeirão Carioca é a que apresenta condições menos restritivas à ocupação para fins imobiliários, principalmente para utilização para chacreamento. Conclui-se que parâmetros morfométricos contribuem para a compreensão da vulnerabilidade de terrenos à erosão, permitindo um melhor ordenamento territorial de bacias hidrográficas.The Upper Rio das Velhas region is part of the Quadrilátero Ferrífero geologic province, Central Minas Gerais State (Brazil, and is characterized by the conflicting use of the land, with intense mining development, increasing urban occupation and strong real estate expansion. The varied erosive processes, the silting of streams and general degradation are some of the problems that impact the environment. This study is the result of the

  4. Análise físico-química dos méis das abelhas Apis mellifera e Melipona scutellaris produzidos em regiões distintas no Estado da Paraíba Physical-Chemical analysis of honeybee Apis mellifera and Melipona scutellaris on two regions at Paraiba State, Brazil

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    Adriana Evangelista-Rodrigues

    2005-10-01

    determination its quality for commercialization. The objective of this work was the physical-chemical analysis of honeybee Apis mellifera and Melipona scutellaris to Brejo and Cariri (Paraíba State Brazil. With the gotten results, it was observed that the honeybee M. scutellaris presents a bigger water text (25.25% humidity when compared with the honeybee A. mellifera (18.76%, making difficult its storage, with lower time of shelf life. It had, as reply to the hidroximetilfurfural analyses, higher value for the honey produced in the Cariri when compared with the honey produced in the Brejo, what it can be explained by the difference temperature, of being higher in the Cariri. For the pH values was made as to the significance of the differences between the honeys was gotten, with the honey of the Cariri presenting lower value (3.8. For Total Acidity, the honeybee A. mellifera of the Brejo presented 41.6 meq/kg of honey, while the native honey presented 28.3 meq/kg of honey. For the too much studied parameters it didn't have significant difference between the group. As conclusion the analytical results on the honeys produced indicate a good level of quality both A.mellifera and M. scutellaris. The parameters indicatiing a shelf life of the product were most satisfactory.

  5. Band-overlap metallization of BaS, BaSe and BaTe

    Science.gov (United States)

    Carlsson, A. E.; Wilkins, J. W.

    1983-01-01

    The insulator-metal transition volumes for BaS, BaSe, and BaTe are calculated for the first time, using the self-consistent augmented spherical wave technique. The metallized transition volumes are smaller than those corresponding to the NaCl yields CsCl structural transitions, but, 10 to 15% larger than those obtained by the Herzfeld dielectric theory. The calculated equilibrium energy gaps in the NaCl structure underestimate the measured ones by 50 to 60%.

  6. Datafile: Brazil

    International Nuclear Information System (INIS)

    There is as yet little to show for the enormous investment made by Brazil over the past 20 years in nuclear power and the fuel cycle. The only nuclear power plant (657MWe PWR) in operation has had a poor performance record and the two reactors (1309MWe PWRs) under construction are more than ten years behind the original schedule. Aspirations of building commercial fuel cycle facilities have proved extremely optimistic. In the latest reorganization of the industry, the construction and operation of nuclear power stations is entrusted to the national utility and the various civilian/military R and D efforts in the fuel cycle are being integrated under civilian supervision. This should lead to greater accountability and efficiency in the future. (author)

  7. Percepção ambiental das artesãs que usam as folhas de carnaúba (Copernicia prunifera H.E.Moore, Arecaceae na Área de Proteção Ambiental Delta do Parnaíba, Piauí, Brasil / Environmental perception of the artisans that work with leaves of carnauba palm (Copernicia prunifera H.E.Moore, Arecaceae in Delta do Parnaíba Environmental Protection Area, Piauí, Brazil

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    Irlaine Rodrigues Vieira

    2014-04-01

    Full Text Available This study investigated the socioeconomic aspects and environmental perception of artisans that subsists making handicrafts of the leaves of carnauba palm (Copernicia prunifera H. E. Moore in the Delta do Parnaíba Environmental Protection Area, located in Paranaíba municipality, Piauí state. We interviewed 36 artisans belonging to communities Fazendinha, Vazantinha and Pedra do Sal, using semi-structured questionnaires. In parallel, the plant management was followed. The crafts are made by women with age ranging from 20 to 60 years and low education. They live deprived of basic sanitation, schools and public health of quality. The perception about the plant is attributed to carnauba utilitarian features. In the three communities damage to plant involves estate speculation. The artisans of Fazendinha and Vazantinha did not express a conservationist conscience, prevailing capitalist perception. In the community of Pedra do Sal, the artisans promote an environmental conservation. They contact environmental agencies and protest against the devastation of carnauba forest. It was observed that although artisans share the same activity, they have different perceptions of the environment and resource explored. Especially in the Fazendinha community is necessary construction of environmental education to promote a sustainable extraction.

  8. Histopatologia de fígado, rim e baço de piaractus mesopotamicus, prochilodus lineatus e pseudoplatystoma fasciatum parasitados por myxosporídios, capturados no Rio Aquidauana, Mato Grosso do Sul, Brasil Histopathology of liver, kidney and spleen of Piaractus mesopotamicus, Prochilodus lineatus and Pseudoplatystoma fasciatum infected by myxosporean parasite, caugth in Aquidauana River, Mato Grosso do Sul, Brazil

    OpenAIRE

    Cristiane M. De Campos; Julieta R.E. Moraes; Flávio R. Moraes

    2008-01-01

    Este estudo descreveu a histopatologia de rim, baço e fígado de Piaractus mesopotamicus, Prochilodus lineatus e Pseudoplatystoma fasciatum, parasitados por mixosporídios, capturados no Rio Aquidauana, MS. Após necropsia, amostras do fígado, rim cefálico e baço foram colhidas, fixadas em formalina a 10 % tamponada e processadas de acordo com a rotina histológica. Os cortes foram feitos à espessura de 5 μm e corados com hematoxilina-eosina. Foram encontrados Myxobolus porofilus em P. linea...

  9. Fatores sócio-econômicos relacionados ao risco nutricional e sua associação com a freqüência de defeitos do esmalte em crianças da cidade de João Pessoa, Paraíba, Brasil Socioeconomic factors, nutritional risk, and enamel defects in children from João Pessoa, Paraíba State, Brazil

    OpenAIRE

    Andreza Cristina de Lima Targino Massoni; Andressa Feitosa Bezerra de Oliveira; Ana Maria Barros Chaves; Fábio Correia Sampaio; Aronita Rosenblatt

    2007-01-01

    O objetivo deste estudo foi verificar fatores associados ao risco nutricional ao longo do primeiro ano de vida em crianças de baixo nível sócio-econômico de João Pessoa, Paraíba, Região Nordeste do Brasil. E determinar a freqüência de defeitos do esmalte, associando-a ao risco nutricional. O estudo foi realizado com 117 crianças, 56 com risco nutricional e 61 eutróficas. Em domicílio, realizaram-se avaliação nutricional, exame clínico dos elementos dentais e entrevistas com as mães. Na matern...

  10. Biochemical Education in Brazil.

    Science.gov (United States)

    Vella, F.

    1988-01-01

    Described are discussions held concerning the problems of biochemical education in Brazil at a meeting of the Sociedade Brazileira de Bioquimica in April 1988. Also discussed are other visits that were made to universities in Brazil. Three major recommendations to improve the state of biochemistry education in Brazil are presented. (CW)

  11. The decay of 120Ba

    International Nuclear Information System (INIS)

    120Ba was produced by bombarding a 2 mg/cm2 thick 106Cd target with a 68 MeV 16O beam and fluorated in a helium-jet ion source. The decay of on-line mass separated activity 120Ba has been studied by γ-X, γ-γ and γ-β coincidence measurements. Its half-life was measured to be 24 ± 2s. The total decay energy was extracted to be QEG 5.0 ± 0.3 MeV. A simple decay scheme has been proposed

  12. TRANSITIVITY AND THE BA CONSTRUCTION

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    Pei-Jung Kuo

    2010-06-01

    Full Text Available In this paper, I discuss the legitimacy of positing a Transitivity Projection (= TrP cf. Bowers 1993, 1997, 2001 and 2002 in the BA construction in Mandarin Chinese. BA has been proposed to be a semantically-bleached verb, inserted in the v position (Huang 1997 and Lin 2001. Several pieces of evidence such as manner adverbial placement (cf. Huang, Li and Li 2009 and GEI-insertion (cf. Tang 2001 indicate that there must be a functional projection between the vP and VP to host the BA NP. I propose that a TrP is probably the most apt candidate for the XP. I also argue, in contrast to the proposal by Huang, Li and Li (2009, that the present proposal which employs a TrP captures most of the properties of the BA construction. A comparison with the structure of the BEI construction also shows that the TrP proposal fits into the general picture of current linguistic theory on transitive constructions without extra stipulations.

  13. Phase formation in the BaB2O4-BaF2 system

    Science.gov (United States)

    Bekker, T. B.; Fedorov, P. P.; Kokh, A. E.

    2012-07-01

    It is shown that the BaB2O4-BaF2 system is quasi-binary with the following eutectics coordinates: 760°C, 59 mol % BaF2, 41 mol % BaB2O4. Due to the intense pyrohydrolysis during the growth of β-BaB2O4 crystals from the 55.6 mol % BaB2O4-44.4 mol % BaF2 composition, the Ba5B4O11 compound is formed in the system. This process leads to the cocrystallization of the β-BaB2O4 and Ba5B4O11 phases and impedes the formation of high-quality crystals.

  14. Prevalence of patients with respiratory symptoms through active case finding and diagnosis of pulmonary tuberculosis among prisoners and related predictors in a jail in the city of Carapicuíba, Brazil Prevalência de sintomáticos respiratórios através da busca ativa, diagnóstico de tuberculose pulmonar entre pessoas privadas de liberdade e fatores associados em uma cadeia pública no município de Carapicuíba, Brasil

    Directory of Open Access Journals (Sweden)

    Amadeu A. Vieira

    2010-12-01

    Full Text Available BACKGROUND: Prisons offer a fertile setting for the transmission of tuberculosis due to the presence of many classic risk factors for both infection and disease: overcrowding, poor ventilation, and little sunlight. Prisoners are often malnourished and have poor hygiene and are more likely to have a background of alcohol and drug abuse. OBJECTIVES: To determine the prevalence of prisoners with respiratory symptoms and pulmonary tuberculosis (PTB through active case finding in a prisoner population of the county jail of Carapicuíba, and to study possible related variables. METHODS: This was a cross-sectional study, and respiratory symptomatic individuals (RSI were detected through active case finding. Socio-demographic data were collected from inmates' judicial history using a specific questionnaire. The RSI provided sputum specimens for detection of acid fast bacilli and culture for mycobacterium identification. RESULTS: Among the 397 prisoners studied, 154 reported respiratory symptoms for more than three weeks, and were considered RSI; the variables associated with RSI were: having already been tried and incarcerated for more than six months and seven were diagnosed as PTB (1,763 cases/ 100,000 inhabitants. CONCLUSIONS: The prevalence of RSI and PTB cases were respectively 39 and 35 times greater than the general population.INTRODUÇÃO: Estabelecimentos prisionais são um campo favorável para a transmissão de tuberculose (TB, devido a presença de vários fatores de risco clássicos, tanto para a infecção como para a doença: aglomeração, falta de ventilação e de iluminação, como também o fato de os detentos receberem uma nutrição deficitária e os locais possuí-rem condições de higiene precárias; uma grande proporção dos detentos apresentam história pregressa de alcoolismo e uso de drogas ilícitas nas dependências desses estabelecimentos. OBJETIVOS: Determinar a prevalência de sintomáticos respiratórios (RSI e casos

  15. The Devonian trilobites of Brazil: A summary

    Science.gov (United States)

    Carvalho, Maria da Gloria Pires de; Ponciano, Luiza Corral Martins de Oliveira

    2015-12-01

    Devonian trilobites are found in three major Paleozoic intracratonic basins of Brazil (Amazonas, Parnaíba, and Paraná). The trilobites represent the families Homalonotidae, Dalmanitidae, and Calmoniidae. The distribution of these taxa in the Brazilian territory is summarized here because of their remarkable scientific and historical importance, and a revised taxonomy and lithostratigraphy of the Devonian (Pragian - Famennian) trilobites from Brazil is presented, based on new research and recent literature. Homalonotids and dalmanitids are relatively cosmopolitan, whereas calmoniids are more endemic and seem to have been restricted to marine cold-waters of the southern hemisphere (Malvinokaffric Realm). Although the trilobites within the Brazilian intracratonic basins are approximately contemporaneous, they show various patterns of endemism and biogeographical affinities with other Malvinokaffric areas such as Bolivia, South Africa, and the Falkland (Malvinas) Islands. At family level, therefore, trilobite diversity from Brazil is comparatively low, which may indicate biogeographical filtering related to the distance and/or remoteness of the Brazilian basins from more open oceanic waters.

  16. The diversity and distribution of Heliconia (Heliconiaceae) in Brazil A diversidade e distribuição de Heliconia (Heliconiaceae)

    OpenAIRE

    John Kress

    1990-01-01

    A review of the phylogenetic relationships of the Zingiberales is presented and the distribution patterns and diversity of Heliconia are discussed. Sixty-five species names have been applied to the heliconias that occur in Brazil. Of these 65 names, 28 are generally recognized synonyms. Of the remaining 37 species of Brazilian Heliconia, some controversy exists over the taxonomic status of at least eight. Two primary areas of distribution of species of Heliconia exist in Brazil: the Amazon ba...

  17. Avaliação da atividade antibacteriana e prospecção fitoquímica de Solanum paniculatum Lam. e Operculina hamiltonii (G. Don D. F. Austin & Staples, do semi-árido paraibano Evaluation of antibacterial activity and phytochemical prospection of Solanum paniculatum Lam. and Operculina hamiltonii (G. Don D. F. Austin & Staples from the semi-arid region of Paraíba State, Brazil

    Directory of Open Access Journals (Sweden)

    K.M.S Lôbo

    2010-06-01

    Full Text Available Devido ao aparecimento de populações de parasitos resistentes, as drogas farmacêuticas, alternativas de controle, estão sendo pesquisadas utilizando plantas medicinais. O objetivo deste estudo foi avaliar a atividade antibacteriana e realizar a análise fitoquímica do extrato etanólico de duas espécies do semi-árido paraibano, Solanum paniculatum Lam. e Operculina hamiltonii (G. Don D. F. Austin & Staples. As referidas espécies são muito utilizadas pela população rural contra verminoses gastrintestinais de ovinos. A prospecção fitoquímica foi obtida a partir dos extratos etanólicos para análise dos constituintes químicos existentes nas duas espécies. As análises dos extratos indicaram a presença de taninos flobabênicos, flavononóis, flavononas e alcalóides em ambas as espécies. A atividade antibacteriana foi determinada inicialmente pelo método de difusão em cavidade. A espécie S. paniculatum apresentou atividade contra Staphylococcus aureus (ATCC 12692, Escherichia coli (ATCC 25922 e Pseudomonas aeruginosa (ATCC 15442, no entanto O. hamintonii não demonstrou atividade contra as linhagens bacterianas testadas.The emergence of resistant parasite populations has led to the study of pharmaceutical drugs, which represent an alternative control. This study aimed to evaluate the antibacterial activity and to perform the phytochemical analysis of the ethanol extract from two species belonging to the semi-arid region of Paraíba State, Brazil: Solanum paniculatum Lam. and Operculina hamiltonii (G. Don D. F. Austin & Staples. Such species have been largely used by the rural population against ovine gastrointestinal helminthes. Phytochemical prospection was obtained from ethanol extracts for analysis of chemical compounds present in both species. Extract analyses indicated the presence of condensed tannins, flavonols, flavanones, and alkaloids in both species. The antibacterial activity was initially determined by the cavity

  18. Impactos da invasão de Prosopis juliflora (sw. DC. (Fabaceae sobre o estrato arbustivo-arbóreo em áreas de Caatinga no Estado da Paraíba, Brasil - doi: 10.4025/actascibiolsci.v32i3.4535 Impact of the invasion of Prosopis juliflora (Sw. DC. (Fabaceae in areas of Caatinga in the state of Paraiba, Brazil - doi: 10.4025/actascibiolsci.v32i3.4535

    Directory of Open Access Journals (Sweden)

    Juliano Ricardo Fabricante

    2010-09-01

    Full Text Available Estima-se que as áreas invadidas por algaroba – Prosopis juliflora (Sw. DC. (Fabaceae no semi-árido nordestino já ultrapassam um milhão de hectares. O presente trabalho objetivou estudar os impactos da invasão de P. juliflora sobre a fitodiversidade e a estrutura do componente arbustivo-arbóreo, em remanescentes de caatinga no Estado da Paraíba. Usando-se o método de parcelas, foram amostrados quatro ambientes, nos quais os indivíduos de todas as espécies arbustivas e arbóreas foram inventariados e medidos, estimando-se os parâmetros estruturais das comunidades. Também foi calculada a diversidade, pelo índice de Shannon-Wiener (H’ e o índice de impacto ambiental de exóticas (IIAE. No total, foram amostradas 19 famílias, 35 gêneros e 39 espécies. A invasora foi responsável por mais de 70% de toda a estrutura dos ambientes inventariados. A baixa diversidade e o elevado valor de impacto ambiental obtidos para os ambientes invadidos revelaram, conjuntamente com os dados de estrutura das populações, os graves impactos que P. juliflora provoca nas comunidades invadidas. Evidencia-se com isso a formação de sistemas monodominados pela espécie invasora, o que revela a necessidade de controle efetivo de P. juliflora para se proteger o patrimônio genético autóctone.It is estimated that invader populations of algaroba Prosopis juliflora (Sw. DC. (Fabaceae in the northeastern semi-arid, Brazil, cover more than one million ha. This study aimed to study the impacts of P. juliflora invasion on phytodiversity and on the structure of the shrub-tree component in caatinga fragments in Paraiba state. Four environments were sampled by plots in which all shrub-tree individuals were surveyed and measured, estimating structural parameters of the communities. Diversity was estimated by the Shannon-Wiener index (H', and the index of environmental impacts of exotic species (IIAE was also calculated. A total of 19 families, 35 genera and 39

  19. Radiopharmacy education in Brazil

    OpenAIRE

    Ralph Santos-Oliveira; Marta De Souza Albernaz

    2014-01-01

    The number of schools of pharmacy has been increasing each year in Brazil. From 2002 to 2013 over 300 new schools were opened in Brazil with a final number of 415 schools of pharmacy in operation around the country. Of these schools, only 28 schools offer a course in radiopharmacy (7.77%). However, the demand for such trained professionals has grown exponentially in Brazil, especially following amendment 49 (February 2006) that broke the monopoly on the production, distribution, and marketing...

  20. Histopatologia de fígado, rim e baço de piaractus mesopotamicus, prochilodus lineatus e pseudoplatystoma fasciatum parasitados por myxosporídios, capturados no Rio Aquidauana, Mato Grosso do Sul, Brasil Histopathology of liver, kidney and spleen of Piaractus mesopotamicus, Prochilodus lineatus and Pseudoplatystoma fasciatum infected by myxosporean parasite, caugth in Aquidauana River, Mato Grosso do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    Cristiane M. de Campos

    2008-12-01

    Full Text Available Este estudo descreveu a histopatologia de rim, baço e fígado de Piaractus mesopotamicus, Prochilodus lineatus e Pseudoplatystoma fasciatum, parasitados por mixosporídios, capturados no Rio Aquidauana, MS. Após necropsia, amostras do fígado, rim cefálico e baço foram colhidas, fixadas em formalina a 10 % tamponada e processadas de acordo com a rotina histológica. Os cortes foram feitos à espessura de 5 μm e corados com hematoxilina-eosina. Foram encontrados Myxobolus porofilus em P. lineatus, M. colossomatis em P. mesopotamicus e Myxobolus spp. nas três espécies de hospedeiros. Cistos de mixosporídios no exame histopatológico foram vistos no fígado e baço de P. mesopotamicus. Mais de 50% das amostras de fígado de P mesopotamicus e P lineatus apresentou hepatodistrofia difusa. Mais de 80 % das amostras de fígado de P. fasciatum apresentou formações hialinas concêntricas e esteatose em 50% das amostras. Em 95,23 % das amostras de rins de P. mesopotamicus, foram observadas alterações teciduais, e em mais de 60 % dos casos nefrodistrofia difusa moderada e congestão de sinusóides glomerulares. Alterações teciduais nas amostras de rins de P. lineatus foram observadas em menos de 20 % da amostra. No baço dos peixes ora examinados não foram encontradas lesões dignas de relato.Histological analysis of kidney, spleen and liver of Piaractus mesopotamicus, Prochilodus lineatus and Pseudoplatystoma fasciatum, infected by myxosporean, caugth in Aquidauana river, MS, was studied. After necropsy, samples of liver, previous kidney and spleen were fixed in 10 % buffered formalin and processed followed histological routine methods. Sections of 5 μm were stained with hematoxylin and eosin. Myxobolusporofilus, M. colossomatis and were found in P. lineatus, in P. mesopotamicus respectively and Myxobolus spp. Were also found in all three species of fish. Myxosporideans cysts in the liver and spleen of P mesopotamicus were also related. Up

  1. Manejo da cobertura do solo e de práticas conservacionistas nas perdas de solo e água em Sumé, PB Effect of the soil cover management and conservation practices on soil and water losses of a Haplargid soil in Sumé, Paraíba State, Brazil

    OpenAIRE

    Abel W. de Albuquerque; Francisco Lombardi Neto; Vajapeyam S. Srinivasan; Santos, José R.

    2002-01-01

    Foram estudados os efeitos do manejo e da cobertura do solo sobre as perdas de solo e água provocadas por chuvas erosivas, num solo Bruno Não-Cálcico. Os dados correspondentes aos anos de 1983 a 1990 foram obtidos na Bacia Experimental de Sumé, PB, inserida dentro da Bacia Representativa de Sumé e operada pela Universidade Federal da Paraíba (UFPB), Campus II, Campina Grande. O experimento constituiu-se de uma parcela desmatada e mantida em alqueive contínuo, de duas desmatadas, uma com caati...

  2. Sorghum silage production system in Cariri, Paraíba

    Directory of Open Access Journals (Sweden)

    Ebson Pereira Cândido

    2014-06-01

    Full Text Available The objective of this study was to characterize the sorghum farming and ensiling systems in the Cariri region of Paraíba State (Brazil, and to identify different groups of producers based on productive characteristics using frequency distributions, and principal component and cluster analyses. A total of 100 milk producers in the Caturité and Boqueirão municipalities in the dairy region of Cariri, Paraíba, were selected to fill out a questionnaire comprised of 32 questions to collect data on both qualitative and quantitative variables. Of the 100 properties studied, 88% cultivated sorghum as silage forage for feeding dairy cows, demonstrating the importance of this cultural practice in the region of Cariri. Statistical analyses based on the variables studied identified four groups, composed of 35, 8, 6, and 39 farmers. The sorghum cultivation and ensiling production system in Cariri can be improved through the evaluation and improvement of soil fertility to obtain higher forage production, application of weed control using herbicides, and implementation of mechanized planting and harvesting to improve efficiency and reduce costs associated with manpower.

  3. Características populacionais de Microphrys bicornutus (Brachyura, Mithracidae no fital Halimeda opuntia (Chlorophyta, Halimedaceae, em área recifal submetida à visitação humana, em João Pessoa, Paraíba Population characteristics of Microphrys bicornutus (Brachyura, Mithracidae on the phytal Halimeda opuntia (Chlorophyta, Halimedaceae, on reef area submitted to human visitation, in João Pessoa, Paraíba, Brazil

    Directory of Open Access Journals (Sweden)

    Jefferson B. Batista

    2009-03-01

    Full Text Available Este trabalho teve como objetivos caracterizar e comparar a estrutura e a dinâmica populacional de Microphrys bicornutus Latreille, 1825 no fital Halimeda opuntia (Halimedaceae coletado nas formações recifais de Picãozinho (submetida à visitação turística e São Gonçalo (área controle, na costa de João Pessoa (Nordeste do Brasil, sob influência de fatores ambientais e do número de visitantes. Nas duas áreas de estudo as populações analisadas estiveram compostas por fêmeas e machos maduros e imaturos com significativa predominância de machos e de animais imaturos, freqüência de tamanho e períodos reprodutivos similares. O tamanho máximo dos exemplares, a freqüência de distribuição de tamanho e a razão sexual diferiram dos resultados obtidos para a espécie em outras latitudes e habitats. Dados de razão sexual evidenciam que independentemente do estágio de maturação, os machos apresentam predominância significativa (RS>1,0, e que a proporção de fêmeas diminui com o amadurecimento sexual. Sem sofrer influência da biomassa da alga, e da salinidade e temperatura da água, variações populacionais significativas foram associadas ao aumento de juvenis durante períodos chuvosos. A baixa densidade populacional e a maior desproporção da relação macho: fêmea em subárea de Picãozinho com maior fluxo de pessoas sugerem que estas variações podem ter sido induzidas pelo pisoteio das algas.The aim of this study was to characterize and compare the population structure and dynamic of Microphrys bicornutus Latreille, 1825 on the phytal Halimeda opuntia (Halimedaceae collected on the reef areas of Picãozinho (visited by tourists and São Gonçalo (control area, in João Pessoa coast (Northeastern of Brazil, under the influence of environmental conditions and visitant numbers. In both study areas the populations analyzed were composed similarly of mature and immature males and females, with predominance of males and

  4. DISTRIBUIÇÃO E FRACIONAMENTO DO Hg EM SEDIMENTOS DO RIO PARAÍBA DO SUL – RJ, BRASIL

    OpenAIRE

    Beatriz Ferreira Araujo; Marcelo Gomes de Almeida; Thiago Pessanha Rangel; Carlos Eduardo de Rezende

    2015-01-01

    Mercury distribution and fractionation were determined in sediments from the Paraíba do Sul River – RJ, Brazil. Total mercury concentration ranged from 1 to 158 ng g-1. Hg associated with the weakly bound fraction was dominant in the estuarine areas (main - 60% and secondary - 55%); followed by fluvial end member (48%) and mangrove (18%). These results reinforce the mercury availability to fluvial and estuarine areas and emphasize the key role played by mangroves as an efficient biogeochemica...

  5. Critically evaluated atomic transition probabilities for Ba I and Ba II

    International Nuclear Information System (INIS)

    Atomic transition probabilities for allowed and forbidden lines of Ba I and Ba II are tabulated, based on a critical evaluation of recent literature sources. The data are presented in multiplet format and are ordered by increasing excitation energies. (author)

  6. Ba{sub 2}phenanthrene is the main component in the Ba-doped phenanthrene superconductor

    Energy Technology Data Exchange (ETDEWEB)

    Yan, Xun-Wang [Beijing Computational Science Research Center, Beijing 100084 (China); Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062 (China); State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100190 (China); School of physics and electrical engineering, Anyang Normal University, Henan 455000 (China); Huang, Zhongbing, E-mail: huangzb@hubu.edu.cn [Beijing Computational Science Research Center, Beijing 100084 (China); Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062 (China); Lin, Hai-Qing [Beijing Computational Science Research Center, Beijing 100084 (China)

    2014-12-14

    We have systematically investigated the crystal structure of Ba-doped phenanthrene with various Ba doping levels by the first-principles calculations combined with the X-ray diffraction (XRD) spectra simulations. Although the experimental stoichiometry ratio of Ba atom and phenanthrene molecule is 1.5:1, the simulated XRD spectra, space group symmetry and optimized lattice parameters of Ba{sub 1.5}phenanthrene are not consistent with the experimental ones, while the results for Ba{sub 2}phenanthrene are in good agreement with the measurements. The strength difference of a few XRD peaks can be explained by the existence of pristine phenanthrene. Our findings suggest that instead of uniform Ba{sub 1.5}phenanthrene, there coexist Ba{sub 2}phenanthrene and undoped phenanthrene in the superconducting sample. The electronic calculations indicate that Ba{sub 2}phenanthrene is a semiconductor with a small energy gap less than 0.05 eV.

  7. AMiBA, XMM, and Cluster Surveys

    CERN Document Server

    Liang, H

    2001-01-01

    The Array for Microwave Background Anisotropy (AMiBA) is an interferometric array of 19 dishes co-mounted on a steerable platform and operating at 95GHz. One of the main scientific aims of AMiBA is to conduct cluster surveys using the Sunyaev-Zel'dovich (SZ) effect. Here we explore the potential of AMiBA as a tailor-made SZ instrument for the study of cluster physics and cosmology via cluster surveys out to the epoch of cluster formation. In particular, we explore the potential of combining AMiBA cluster surveys with the XMM-LSS (Large Scale Structure) survey.

  8. AMiBA: System Performance

    OpenAIRE

    Lin, Kai-Yang; Li, Chao-Te; Ho, Paul T. P.; Huang, Chih-Wei Locutus; Liao, Yu-Wei; Liu, Guo-Chin; Koch, Patrick M.; Molnar, Sandor M.; Nishioka, Hiroaki; Umetsu, Keiichi; Wang, Fu-Cheng; Wu, Jiun-Huei Proty; Kestevan, Michael; Birkinshaw, Mark; Altamirano, Pablo

    2009-01-01

    The Y.T. Lee Array for Microwave Background Anisotropy (AMiBA) started scientific operation in early 2007. This work describes the optimization of the system performance for the measurements of the Sunyaev-Zel'dovich effect for six massive galaxy clusters at redshifts $0.09 - 0.32$. We achieved a point source sensitivity of $63\\pm 7$ mJy with the seven 0.6m dishes in 1 hour of on-source integration in 2-patch differencing observations. We measured and compensated for the delays between the an...

  9. Análise físico-química do óleo-resina e variabilidade genética de copaíba na Floresta Nacional do Tapajós Physico-chemical analysis of the oleoresin and genetic variability of copaiba in the Tapajós National Forest, Brazil

    OpenAIRE

    Ederly Santos Silva; Caroline de Souza Mathias; Milena Campelo Freitas de Lima; Valdir Florêncio da Veiga Junior; Doriane Picanço Rodrigues; Charles Roland Clement

    2012-01-01

    O objetivo deste trabalho foi caracterizar o óleo-resina da copaíba (Copaifera reticulata) e estimar, por meio de marcadores microssatélites, a variabilidade genética da espécie na Floresta Nacional do Tapajós, PA. A amostragem foi realizada em duas áreas, distanciadas de 5 km, em 136 árvores. A diversidade genética foi avaliada com seis marcadores microssatélites derivados de C. langsdorffii, e o óleo obtido de 30 árvores (15 de cada área) foi caracterizado em termos físicos e químicos. O ól...

  10. Índice de infestação e diversidade de moscas-das-frutas em hospedeiros exóticos e nativos no pólo de fruticultura de Anagé, BA Index of infestation and diversity of fruit-flies in exotic hosts native to the fruitculture area in Anagé, Bahia, Brazil

    Directory of Open Access Journals (Sweden)

    Ricardo Falcão de Sá

    2008-01-01

    Full Text Available As moscas-das-frutas (Diptera: Tephritidae são os principais entraves às exportações de manga nos pólos de fruticultura da Região Sudoeste da Bahia. O presente trabalho teve como objetivo estudar índices de infestação e a diversidade de moscas-das-frutas no pólo de fruticultura de Anagé, BA, visando obter subsídios para o manejo integrado dessas pragas na mangueira, na região. Os estudos foram realizados em 2004 e 2005, nos municípios de Anagé, Belo Campo e Caraíbas, BA, procedendo-se à coleta de frutos de 21 espécies vegetais, nativas e exóticas, e identificação das espécies de moscas associadas. Estimaram-se os índices de infestação em pupários/kg de fruto e pupários/fruto. Os maiores índices de infestação, em pupários/kg de fruto, ocorreram em serigüela (Spondias purpurea L. com 61,3, juá (Ziziphus joazeiro L., 38,3 e umbu (Spondias tuberosa L., 33,1, considerados hospedeiros primários de Anastrepha fraterculus (Wiedemann e A. obliqua (Macquart. As maiores infestações em pupários/fruto ocorreram em serigüela (0,9; umbu (0,7 e cajarana (Spondias sp. (0,2. Com base no monitoramento larval, registra-se, para as condições do pólo de fruticultura de Anagé, a ocorrência das espécies Anastrepha fraterculus, A. obliqua, A. dissimilis, A. amita, A. distincta, A. sororcula, A. zenildae e Ceratitis capitata. Registram-se, pela primeira vez, as seguintes associações bitróficas: juá com A. fraterculus, A. obliqua, A. dissimilis e A. distincta; e umbu com A. amita e A. sororcula.Fruit-flies (Diptera: Tephritidae are the main hindrance for mango exportation in the fruitculture areas of the Southwestern Region of Bahia. The purpose of the present work was to study the indexes of infestation and diversity of fruit-flies in the fruitculture area of Anagé, BA, in order to obtain subsidies to the integrated management of these pests in mango, in this region. Studies were carried out in 2004 and 2005 in the

  11. Application of the Geographic Information Systems (GIS) in the spatialization of U, Th and K concentrations on the proximity of brazilian uranium mines

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Simara S.; Veiga, Artur J.P., E-mail: simaracampos@gmail.com [Universidade Estadual do Sudoeste da Bahia (UESB), Itapetinga, BA (Brazil); Souza, Susana O. [Universidade Federal de Sergipe (UFS), Sao Cristovao, SE (Brazil). Dept. de Fisica; Gennari, Roseli F. [Universidade de Sao Paulo (USP), Sao Paulo, SP (Brazil). Dept. de Fisica Nuclear

    2013-07-01

    GIS is a computational tool for improving the obtained data with spatial geographic information. An understanding of complex analysis by overlaying and integrating several types of information is possible. With GIS one can question, analyze, interpret and understand the data to reveal relationships, patterns and trends. In environmental monitoring, GIS have become indispensable to do the contextualization of the problem. The cartographic products generated by the application of these techniques allow the visualization of the environmental current situation, which may also contribute to the prediction of future problems. After accidents with Fukushima and Chernobyl nuclear power plants there is a crescent public fear intensified every time there are nuclear fuel cycle activities occurring. The absence of reliable information leads to unfounded rumors about the daily life and this can impact negatively on activity performed, mainly in situations related to power generation by nuclear route, notably known more by its harm effects than by the benefits. Faced with such controversial subjects, two main Brazilian uranium reserves (Caetite-BA and Santa Quiteria-CE) were studied. We performed ICP-MS analyzes for the U, Th and K determination in water and soil samples. The obtained data GIS tools were applied to survey topography and watershed where URA - Uranium Concentrate Unit of Nuclear Industries of Brazil - INB is inserted. Our aim was to identify the affluent hydrography found in the region and overlaps the radiological data, checking possible routes of contamination. The radionuclides concentration found in soil and water, in both regions, are within the limit set by the World Health Organization. In Santa Quiteria, once this URA is in pre-operational phase, no hydraulic connections were established. In the URA - Caetite, we observe that there is no hydraulic connection between the URA and the City of Caetite, so the Greenpeace affirmation about the radionuclide

  12. Application of the Geographic Information Systems (GIS) in the spatialization of U, Th and K concentrations on the proximity of brazilian uranium mines

    International Nuclear Information System (INIS)

    GIS is a computational tool for improving the obtained data with spatial geographic information. An understanding of complex analysis by overlaying and integrating several types of information is possible. With GIS one can question, analyze, interpret and understand the data to reveal relationships, patterns and trends. In environmental monitoring, GIS have become indispensable to do the contextualization of the problem. The cartographic products generated by the application of these techniques allow the visualization of the environmental current situation, which may also contribute to the prediction of future problems. After accidents with Fukushima and Chernobyl nuclear power plants there is a crescent public fear intensified every time there are nuclear fuel cycle activities occurring. The absence of reliable information leads to unfounded rumors about the daily life and this can impact negatively on activity performed, mainly in situations related to power generation by nuclear route, notably known more by its harm effects than by the benefits. Faced with such controversial subjects, two main Brazilian uranium reserves (Caetite-BA and Santa Quiteria-CE) were studied. We performed ICP-MS analyzes for the U, Th and K determination in water and soil samples. The obtained data GIS tools were applied to survey topography and watershed where URA - Uranium Concentrate Unit of Nuclear Industries of Brazil - INB is inserted. Our aim was to identify the affluent hydrography found in the region and overlaps the radiological data, checking possible routes of contamination. The radionuclides concentration found in soil and water, in both regions, are within the limit set by the World Health Organization. In Santa Quiteria, once this URA is in pre-operational phase, no hydraulic connections were established. In the URA - Caetite, we observe that there is no hydraulic connection between the URA and the City of Caetite, so the Greenpeace affirmation about the radionuclide

  13. Brazil : Eradicating Child Labor in Brazil

    OpenAIRE

    World Bank

    2001-01-01

    The report reviews evidence of child labor in Brazil, and the Government's efforts to eradicate its worst forms, by examining background assessments of ongoing programs for its prevention. It seeks to identify promising strategies, addressing the needs of highly vulnerable children in urban areas, engaged in activities such as drug commerce, prostitution, or other dangerous activities. One...

  14. BaBar Data Aquisition

    CERN Document Server

    Scott, I; Grosso, P; Hamilton, R T; Huffer, M E; O'Grady, C; Russell, J J

    1998-01-01

    The BaBar experiment at the Stanford Linear Accelerator Center is designed to perform a search for CP violation by analysing the decays of a very large sample of B and Bbar mesons produced at the high luminosity PEP-11 accelerator. The data acquisition system must cope with a sustained high event rate, while supporting real time feature extraction and data compression with minimal dead time. The BaBar data acquisition system is based around a common VME interface to the electronics read-out of the separate detector subsystems. Data from the front end electronics is read into commercial VME processors via a custom "personality card" and PCI interface. The commercial CPUs run the Tornado operating system to provide a platform for detector subsystem code to perform the necessary data processing. The data are read out via a non-blocking network switch to a farm of commercial UNIX processors. Careful design of the core data acquisition code has enabled us to sustain events rates in excess of 20 kHz while maintaini...

  15. Focus on Brazil

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1988-11-01

    Brazil, the largest country in South America with a population of almost 140 million, has been plagued since the early 1980s by high foreign debt (approximately US$121 billion at present) and hyperinflation (nearly 600 percent over the past 12 months). These factors, in combination with the slower than anticipated growth in electricity demand, have been instrumental in curtailing nuclear power development in the country. Following recommendations advanced in a commissioned study for improving Brazil`s nuclear program, Brazilian President Jose Sarney announced on August 31st the restructuring of the country`s nuclear industry.

  16. High spin states of 120Ba

    International Nuclear Information System (INIS)

    The very neutron deficient nucleus 120Ba has been investigated in a high-spin γ-spectroscopic study. The yrast band of 120Ba is extended up to spin 22 ℎ and one tentatively assigned negative-parity side band is observed up to spin 15 ℎ. The experimental results are compared with Total Routhian Surface calculations. (orig.)

  17. CONTRAST STUDY ON CT AND BA IN 3000 PATIENTS

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Objectives: To explore clinical applied value on CT and BA in diagnosis of diseases. Methods:CT and BA were examined in 3000 patients. Results: There were some differences between CT and BA in diagnosis of diseases. Conclusions: BA can supplement shortage of CT. The combination of CT and BA can heighten diagnostic level of diseases.KEY WORDS brain atlas (BA); computed tomography (CT)

  18. Anti-Leptospira spp. antibodies in captive animals in Paraíba State

    OpenAIRE

    Arthur Brasil; Roberta Parentoni; Roberto Farias; Thiago Nery; Sílvio Vasconcellos; Sérgio Santos de Azevedo

    2013-01-01

    The aim of this survey was to verify the occurrence of anti-Leptospira spp. antibodies in captive animals in the Parque Zoobotânico Arruda Câmara, João Pessoa, Paraíba State, Northeastern Brazil. Blood samples were collected from 49 animals: 26 mammals of the species Sapajus libidinosus, Cebus flavius, Saimiri sciureu, Coendu sp., Pseudalopex vetulus, Leopardus pardalis, Leopardus tigrinus, Galactitis vitata, Eira barbara, Nasua nasua, Tayassu tajacu and Ratus norvegicus; 10 birds of the spec...

  19. Benefits and legacy of the water crisis in Brazil

    OpenAIRE

    Marcelo dos Santos Targa; Getulio Teixeira Batista

    2015-01-01

    In this editorial, we reflect on the benefits and legacy of the water crisis in Brazil between 2013 and 2014, which affected the water supply in many regions and especially in the southeast region, with emphasis on the conflict between the states of São Paulo and Rio de Janeiro over the right to use the water of the Paraíba do Sul River Basin. We analyze the current state of water resource management, the integrated use of water and energy and possible solutions to expand the availability of ...

  20. Benefits and legacy of the water crisis in Brazil

    Directory of Open Access Journals (Sweden)

    Marcelo dos Santos Targa

    2015-04-01

    Full Text Available In this editorial, we reflect on the benefits and legacy of the water crisis in Brazil between 2013 and 2014, which affected the water supply in many regions and especially in the southeast region, with emphasis on the conflict between the states of São Paulo and Rio de Janeiro over the right to use the water of the Paraíba do Sul River Basin. We analyze the current state of water resource management, the integrated use of water and energy and possible solutions to expand the availability of fresh water.

  1. Energy in Brazil

    International Nuclear Information System (INIS)

    To prepare the Gross Domestic Product increase of 4 % in the next years, it is necessary to increase the capacity in Brazil. The government decided actions in favor of the installed capacity growth speeding up and planed investments. This document takes stock on the energy situation in Brazil, the human, political and geographical constraints and the decided measures in favor the energy development. (A.L.B.)

  2. Brazil Agriculture Policy Review

    OpenAIRE

    Quiroga, Jose; Brooks, Jonathan; Melyukhina, Olga

    2005-01-01

    In June 2005, OECD members met with senior government officials from Brazil to discuss Brazilian agricultural policies and future directions, as a part of a comprehensive agricultural policy review. Ongoing dialogue with Brazil on policy issues is important to fostering a better understanding of global challenges and opportunities that lie ahead. Results of the review will be published by the OECD in 2005. This policy note provides a preview of key findings.

  3. Allelopathic research in Brazil

    OpenAIRE

    Manuel Reigosa; Anabele Stefânia Gomes; Alfredo Gui Ferreira; Fabian Borghetti

    2013-01-01

    In this article, we review allelopathy studies conducted in Brazil or involving plant species that occur in the country. Conceptions and misconceptions associated with allelopathy, as well as some international criteria to be applied in allelopathic research, are presented and discussed. We observed a sharp increase in the number of papers on this subject conducted in Brazil between 1991 and 2010. However, most studies are conducted under laboratory conditions, lack a clear hypothesis or a so...

  4. Three new species of Eurypon Gray, 1867 from Northeastern Brazil (Poecilosclerida; Demospongiae; Porifera).

    Science.gov (United States)

    Santos, George Garcia; França, Fernando; Pinheiro, Ulisses

    2014-01-01

    Three new species of Eurypon from Northeastern Brazil are described: Eurypon clavilectuarium sp. nov.; Eurypon suassunai sp. nov. and Eurypon distyli sp. nov. Samples were collected from the continental shelf of Rio Grande do Norte, Bahia and Paraíba States. While the majority of Atlantic Eurypon species have been described from deep water, two of three new species described in this study were collected from shallow depths. The three new species from Brazil were compared with all other eighteen Eurypon species described from the Atlantic.  PMID:25543569

  5. Uranium deposits of Brazil

    International Nuclear Information System (INIS)

    Brazil is a country of vast natural resources, including numerous uranium deposits. In support of the country's nuclear power program, Brazil has developed the most active uranium industry in South America. Brazil has one operating reactor (Angra 1, a 626-MWe PWR), and two under construction. The country's economic challenges have slowed the progress of its nuclear program. At present, the Pocos de Caldas district is the only active uranium production. In 1990, the Cercado open-pit mine produced approximately 45 metric tons (MT) U3O8 (100 thousand pounds). Brazil's state-owned uranium production and processing company, Uranio do Brasil, announced it has decided to begin shifting its production from the high-cost and nearly depleted deposits at Pocos de Caldas, to lower-cost reserves at Lagoa Real. Production at Lagoa Real is schedules to begin by 1993. In addition to these two districts, Brazil has many other known uranium deposits, and as a whole, it is estimated that Brazil has over 275,000 MT U3O8 (600 million pounds U3O8) in reserves

  6. Fishers' knowledge and seahorse conservation in Brazil

    Directory of Open Access Journals (Sweden)

    Oliveira Tacyana PR

    2005-12-01

    Full Text Available Abstract From a conservationist perspective, seahorses are threatened fishes. Concomitantly, from a socioeconomic perspective, they represent a source of income to many fishing communities in developing countries. An integration between these two views requires, among other things, the recognition that seahorse fishers have knowledge and abilities that can assist the implementation of conservation strategies and of management plans for seahorses and their habitats. This paper documents the knowledge held by Brazilian fishers on the biology and ecology of the longsnout seahorse Hippocampus reidi. Its aims were to explore collaborative approaches to seahorse conservation and management in Brazil; to assess fishers' perception of seahorse biology and ecology, in the context evaluating potential management options; to increase fishers' involvement with seahorse conservation in Brazil. Data were obtained through questionnaires and interviews made during field surveys conducted in fishing villages located in the States of Piauí, Ceará, Paraíba, Maranhão, Pernambuco and Pará. We consider the following aspects as positive for the conservation of seahorses and their habitats in Brazil: fishers were willing to dialogue with researchers; although captures and/or trade of brooding seahorses occurred, most interviewees recognized the importance of reproduction to the maintenance of seahorses in the wild (and therefore of their source of income, and expressed concern over population declines; fishers associated the presence of a ventral pouch with reproduction in seahorses (regardless of them knowing which sex bears the pouch, and this may facilitate the construction of collaborative management options designed to eliminate captures of brooding specimens; fishers recognized microhabitats of importance to the maintenance of seahorse wild populations; fishers who kept seahorses in captivity tended to recognize the condtions as poor, and as being a cause of

  7. Musgos (Bryophyta de um fragmento de Mata Atlântica na Serra da Jibóia, município de Santa Terezinha, BA, Brasil Mosses (Bryophyta from a fragment of Atlantic Forest in the Jibóia Mountains, Santa Terezinha municipality, Bahia State, Brazil

    Directory of Open Access Journals (Sweden)

    Emilia de Brito Valente

    2009-06-01

    Full Text Available O levantamento de musgos realizado em uma área de Mata Atlântica no município de Santa Terezinha, Bahia, resultou em flora rica, com 61 espécies pertencentes a 23 famílias e 46 gêneros. Sematophyllaceae (sete spp., Orthotrichaceae (seis spp., Pilotrichaceae (cinco spp., Calymperaceae (cinco spp., Leucobryaceae (cinco spp. e Meteoriaceae (quatro spp. apresentaram maior riqueza específica. Actinodontium integrifolium (Broth. Churchill e Calymperes venezuelanum (Mitt. Broth. ex Pittier constituem novos registros para o Brasil. Ectropothecium leptochaeton (Schwaegr. W.R. Buck, Eulacophyllum cultelliforme (Sull. W.R. Buck & Ireland, Fissidens santaclarensis Thér., Lepidopilidium portoricense (Müll. Hal. H.A. Crum & Steere, Mittenothamnium reptans (Hedw. Card., Orthostichella pentasticha (Brid. W.R. Buck, Pilotrichella flexilis (Hedw. Ångstr., Porotrichum mutabile Hampe e Thuidium tomentosum Schimp. são novas ocorrências para a Bahia. Houve predomínio de táxons de distribuição neotropical. A comunidade corticícola foi predominante com 70% das espécies, seguida da epíxila, com 23%. A brioflora do fragmento mostrou-se rica já que corresponde a 24% do total de briófitas atualmente conhecido no Estado.This work presents the results of an inventory of mosses carried out in an Atlantic Forest fragment in the Jibóia Mountains, Santa Terezinha, Bahia State, Brazil. A total of 61 moss species distributed in 23 families and 46 genera were found. The families Sematophyllaceae (seven spp., Orthotrichaceae (six spp., Pilotrichaceae (five spp., Calymperaceae (five spp., Leucobryaceae (five spp. and Meteoriaceae (four spp. had higher species richness. Actinodontium integrifolium (Broth. Churchill and Calymperes venezuelanum (Mitt. Pitt. are new records for Brazil. Ectropothecium leptochaeton (Schwaegr. W.R. Buck., Eulacophyllum cultelliforme (Sull. W.R. Buck & Ireland, Fissidens santa-clarensis Thér., Mittenothamnium reptans (Hedw. Card

  8. Trace Metals Concentrations in Mangrove Sediments of Sepetiba Bay (Rio de Janeiro, Brazil): Microwave Assisted Digestion with Nitric Acid and Aqua Regia [Concentrações de Metais Traço em Sedimentos de Manguezais da Baía de Sepetiba (Rio de Janeiro, Brasil): Digestão Assistida por Micro-ondas com Ácido Nítrico e Água Régia

    OpenAIRE

    Paulo S. A. de Souza; Mônica R. C. Marques; Mario L. G. Soares; Daniel V. Pérez

    2012-01-01

    Mangrove sediments have a great capacity to accumulate trace metals that can be remobilized thuscontaminating the water and biota. Concentrations of trace metals (Cu, Ni, Pb and Zn) in mangrove sedimentsamples from Sepetiba Bay (Brazil) determined using two different protocols were compared, in order to givesupport for the establishment of a future legislation of environmental assessment of sediment quality in Brazil.Surface sediment samples were collected in three mangrove forests of Sepetib...

  9. AMiBA, XMM, and Cluster Surveys

    OpenAIRE

    Liang, Haida

    2001-01-01

    The Array for Microwave Background Anisotropy (AMiBA) is an interferometric array of 19 dishes co-mounted on a steerable platform and operating at 95GHz. One of the main scientific aims of AMiBA is to conduct cluster surveys using the Sunyaev-Zel'dovich (SZ) effect. Here we explore the potential of AMiBA as a tailor-made SZ instrument for the study of cluster physics and cosmology via cluster surveys out to the epoch of cluster formation. In particular, we explore the potential of combining A...

  10. Manejo da cobertura do solo e de práticas conservacionistas nas perdas de solo e água em Sumé, PB Effect of the soil cover management and conservation practices on soil and water losses of a Haplargid soil in Sumé, Paraíba State, Brazil

    Directory of Open Access Journals (Sweden)

    Abel W. Albuquerque

    2002-04-01

    Full Text Available Foram estudados os efeitos do manejo e da cobertura do solo sobre as perdas de solo e água provocadas por chuvas erosivas, num solo Bruno Não-Cálcico. Os dados correspondentes aos anos de 1983 a 1990 foram obtidos na Bacia Experimental de Sumé, PB, inserida dentro da Bacia Representativa de Sumé e operada pela Universidade Federal da Paraíba (UFPB, Campus II, Campina Grande. O experimento constituiu-se de uma parcela desmatada e mantida em alqueive contínuo, de duas desmatadas, uma com caatinga nativa, de duas parcelas com cobertura morta, uma com palma cultivada morro abaixo e de uma parcela com palma cultivada em nível. A parcela desmatada em alqueive contínuo contribuiu com perdas anuais de solo e água de 23,1 t ha-1 e 201 mm, respectivamente. Nas parcelas desmatadas as perdas de solo e água foram de 35,7 e 58,5 t ha-1 e 224,2 e 241,0 mm, respectivamente, enquanto a parcela com caatinga nativa e quando comparada com a parcela desmatada, teve uma redução na perda de solo em cerca de 99% e na perda de água em torno de 89%; já nas parcelas com cobertura morta houve redução de aproximadamente 99% das perdas de solo e 74% das perdas de água em relação às parcelas desmatadas. A palma cultivada em nível reduziu as perdas de solo em 53,4%, quando comparada àquela cultivada morro abaixo.The effect of the soil cover management and conservation practice on soil and water losses caused by the erosivity of rainfall in Haplargid soil have been analyzed in this paper. The field data corresponding to the years 1983-1990 were collected at the Experimental Basin of Sumé, PB operated by the Federal University of Paraíba (UFPB. The experimental data resulting from one erosion plot cleared bare of vegetation and continuously ploughed in, two cleared bare runoff plots, one runoff plot with native semiarid vegetation, two mulched runoff plots, one plot with cactus planted down the slope and one plot with cactus planted along contour lines

  11. Variação espaço-temporal de populações de Hypnea musciformis (Rhodophyta, Gigartinales na baía de Sepetiba e Armação dos Búzios, RJ, Brasil Spatial and temporal variation of populations of Hypnea musciformis (Rhodophyta, Gigartinales in the Sepetiba bay and "Armação dos Búzios", RJ, Brazil

    Directory of Open Access Journals (Sweden)

    Renata Perpetuo Reis

    1998-01-01

    Full Text Available Três populações de Hypnea musciformis foram analisadas ao longo do Estado do Rio de Janeiro; duas epifíticas, sublitorâneas, localizadas na baía de Sepetiba (município de Mangaratiba e uma epilítica, litorânea, localizada em praia exposta a mar aberto (praia Rasa, município de Armação de Búzios. Essas populações foram analisadas quanto à produção de biomassa, flora acompanhante e as possíveis interações com alguns fatores ambientais. As biomassas de H. musciformis variaram nos três locais, não havendo padrão sazonal comum. Observou-se que a movimentação de água, insolação, flora acompanhante e a relação entre a epífita e o hospedeiro, Sargassum spp., causaram efeitos diferenciados sobre a produção das biomassas nas diferentes populações.Three populations of H. musciformis were analyzed throughout Rio de Janeiro State; two sublittoral epiphytic populations located in the Sepetiba bay (Mangaratiba municipality, and one intertidal epilithic population on the shore facing the open sea (Rasa beach, Armação dos Búzios municipality. These populations were analyzed for seasonality in biomass production, the accompanying flora species, and the possible interactions with some environmental factors. The biomass production of H. musciformis was different at each site, water movement, sunlight, accompanying flora, and the relation between the epiphyte and host, Sargassum spp., caused different effects on biomass production in different populations.

  12. Ocorrência de Diglotta brasiliensis (Coleoptera: Staphylinidae: Aleocharinae em duas praias estuarinas da Baía de Paranaguá, sul do Brasil Occurrence of Diglotta brasiliensis (Coleoptera: Staphylinidae: Aleocharinae in two estuarine beaches of Paranaguá Bay, southern Brazil

    Directory of Open Access Journals (Sweden)

    Leonardo C. da Rosa

    2008-09-01

    Full Text Available Nesta nota são apresentadas as principais características do hábictat de Diglotta brasiliensis Caron & Ribeiro-Costa, 2008, uma espécie recentemente descrita para a região Neotropical. Os indivíduos foram encontrados habitando uma faixa de aproximadamente 4 m de largura da zona intermareal superior de duas praias estuarinas (ambas localizadas no setor euhalino da baía, com as suas densidades variando de 13 a 80 indivíduos/m². Nesta faixa da praia os sedimentos estiveram compostos de areia média moderadamente a muito bem selecionada e com teor de umidade em torno de 6,5%. O teor de matéria orgânica e de carbonato de cálcio do sedimento variou entre 0,08 a 0,13% e 3,4 a 5,4%, respectivamente. Nesses locais, D. brasiliensis foi encontrada coexistindo com isópodes cirolanídeos do gênero Excirolana Richardson, 1912 (Isopoda: Cirolanidae.The main habitat characteristics of Diglotta brasiliensis Caron & Ribeiro-Costa, 2008, a recently described species from the Neotropical region, are provided. The specimens were found inhabiting a 4 m wide-strip at the upper intertidal zone of two estuarine sand beaches (both located in the euhaline sector of the bay, with densities ranging from 13 to 80 individuals/m². In this zone, sediment is composed by moderate to very well sorted median sand with moisture content around 6.5%. The sediment organic matter and calcium carbonate contents varied from 0.08 to 0.13% and from 3.4 to 5.4%, respectively. At these places, D. brasiliensis was found coexisting with cirolanid isopods of the genus Excirolana Richardson, 1912 (Isopoda: Cirolanidae.

  13. Microstructures of BaZrO3-doped ErBa2Cu3Oy films fabricated by different BaZrO3 supply

    International Nuclear Information System (INIS)

    ErBa2Cu3Oy films including BaZrO3 are deposited using three types of targets by PLD to realize the self-oriented growth of BaZrO3 nanorods. Microstructures of the obtained films are observed using a transmission electron microscope (TEM). On the basis of the cross-sectional TEM images, the growth mechanism of the BaZrO3 nanorods is discussed. When about a half of BaZrO3-monolayer is added, it is found that the BaZrO3 is not widely segregated to BaZrO3 region and no BaZrO3 region on the ErBa2Cu3Oy surface but the BaZrO3 is homogeneously distributed with approximately 10 nm periods on the ErBa2Cu3Oy surface. As a result, the crystal stress due to the differences of crystal length between the ErBa2Cu3Oy and BaZrO3 are introduced for every 10 nm to the films. This behavior is probably the origin of the self-oriented growth of BaZrO3 nanorods

  14. Electrochemical Oxidation of BaFeO2.5 to BaFeO3

    International Nuclear Information System (INIS)

    Defect perovskite-type BaFeO2.5 was oxidized to BaFeO3 by an electrochemical method in an alkaline aqueous electrolyte at 25 °C. With increase in the charge transfer q (electrons/formula unit), BaFeOz showed monoclinic (at nearly q = 0), rhombohedral (at around q = 0.34), pseudo-cubic (at 0.78 ≤ q ≤ 0.89), and true cubic (at q ≥ 0.89) structures. While an oxygen evolution reaction (OER) started at ca. q = 0.80, the oxidation of BaFeOz could concurrently be continued with the OER and BaFeO3 was obtained at q = 1.2. Further, the chemical potential of oxygen in BaFeOz could be estimated in the range of 2.5 ≤ z ≤ 2.87 without OER

  15. Exoelectron emission of heat induced BaSO/sub 4//BaS conversion

    Energy Technology Data Exchange (ETDEWEB)

    Chryssou, E. (Technical Univ. of Athens (Greece). Physics Dept.)

    1983-01-01

    The conversion BaSO/sub 4//BaS was investigated by exoemission (TSEE), X ray diffraction (XD) and differential thermal analysis (DTA) measurements. ''Pure'' BaSO/sub 4/ (MERCK and B.D.G. products) is not decomposed chemically by heating to 1200/sup 0/C; only a redistribution of lattice defects and impurities occurs and the ..cap alpha.. to ..beta.. phase change at 1160/sup 0/C can be detected. The formation of BaS starts at 700/sup 0/C to 800/sup 0/C in a solid/solid reaction with previously admixed graphite. The original single peak glow curve of BaSO/sub 4/ splits off and the very strong original TSEE efficiency drops by 3 to 4 orders of magnitude when the graphite-affected conversion to BaS is completed within a 1 h heating at 1200/sup 0/C.

  16. Reproductive biology of Sciades herzbergii (Siluriformes: Ariidae) in a tropical estuary in Brazil

    OpenAIRE

    Queiroga, Fernando R.; Jéssica E. Golzio; Raphaela B. dos Santos; Tayná O. Martins; Ana Lúcia Vendel

    2012-01-01

    The present study investigated the reproductive biology of Sciades herzbergii in the Paraíba do Norte River Estuary, Brazil. We aimed to characterize the reproduction of the species with respect to sex ratio, spawning season, condition factor and length at first maturity. Specimens were captured between August 2009 and July 2010 in a stretch of the main channel of the estuary. In the laboratory, they were measured, weighed and macroscopically classified with regard to sex and gonad developmen...

  17. Analysis of lichen species for atmospheric pollution biomonitoring in the Santo Andre municipality, Sao Paulo, Brazil

    International Nuclear Information System (INIS)

    Instrumental neutron activation analysis was applied for the determination of trace elements in Canoparmelia texana species collected in nonpolluted areas of Atlantic Forest and in six sites of Santo Andre Municipality, SP, Brazil. Concentrations of As, Ba, Br, Ca, Cd, Cl, Cr, Cs, Co, Fe, K, La, Mn, Na, Rb, Sb, Sc, Se, U, and Zn were determined and comparisons were made between the results obtained in lichens from different sites

  18. Mercury exposure and malaria prevalence among gold miners in Pará, Brazil

    OpenAIRE

    Silbergeld Ellen K; Nash Denis; Trevant Circey; Strickland G. Thomas; Souza Jose Maria de; Silva Rui S.U. da

    2002-01-01

    Economic development, including resource extraction, can cause toxic exposures that interact with endemic infectious diseases. Mercury is an immunotoxic metal used in the amalgamation of gold, resulting in both occupational exposures and environmental pollution. A cross-sectional medical survey was conducted in 1997 on 135 garimpeiros in Para, Brazil, because of their risks of both mercury exposure and malaria transmission. Mean levels of blood and urine mercury were well above non-exposed ba...

  19. Traditional uses of medicinal animals in the semi-arid region of northeastern Brazil

    OpenAIRE

    Alves Rômulo Romeu Nóbrega; Neta Rita Oliveira de Sousa; Trovão Dilma Maria de Brito Melo; Barbosa Jose Etham de Lucena; Barros Adrianne Teixeira; Dias Thelma Lucia Pereira

    2012-01-01

    Abstract The present work presents an inventory of the traditional medicinal uses of animals in the municipality of Bom Sucesso in Paraíba State (PB) in the semiarid northeastern region of Brazil. Information was obtained through the use of semi-structured interviews with 50 people who use zootherapeutic products. A total of 25 animal species used for medicinal purposes were identified (18 vertebrates and seven invertebrates) distributed among five taxonomic categories; the groups with the la...

  20. Two new cleistocheliferous species of Clathria of sciophilous habitats from Northeastern Brazil (Poecilosclerida: Demospongiae: Porifera).

    Science.gov (United States)

    Santos, George Garcia; Pinheiro, Ulisses

    2014-01-01

    We describe two new species of Clathria (Microciona) Bowerbank, 1862: C. (M.) crassitoxa sp. nov. and C. (M.) trairae sp. nov. from Paraíba State (Northeastern Brazil). All are sciophilous species and are represented by small fragments removed from the substrate. Both new species have cleistochelae, and are compared with their cleistocheliferous congeners, differing from all of them by the possession of different combinations of other megascleres and microscleres. PMID:25543726

  1. A telemedicine network for remote paediatric cardiology services in north-east Brazil

    OpenAIRE

    2015-01-01

    Abstract Problem Providing health care for children with congenital heart diseases remains a major challenge in low- and middle-income countries. Approach In October 2011, the Government of Paraíba, Brazil, established a paediatric cardiology network in partnership with the nongovernmental organization Círculo do Coração. A cardiology team supervised all network activities, using the Internet to keep in contact with remote health facilities. The network developed protocols for screening heart...

  2. Corporate Governance Country Assessment : Brazil

    OpenAIRE

    World Bank

    2012-01-01

    This report assesses Brazil's corporate governance policy framework. It highlights recent improvements in corporate governance regulation, makes policy recommendations, and provides investors with a benchmark against which to measure corporate governance in Brazil. It is an update of the 2005 corporate governance Report on the Observance of Standards and Codes (ROSC). Brazil's experience o...

  3. Thermophysical properties of BaUO4

    International Nuclear Information System (INIS)

    Polycrystalline specimens of barium uranate, BaUO4, were prepared and several properties such as the thermal expansion coefficient, elastic moduli, thermal conductivity, and Debye temperature were evaluated. The sintered specimens had a single-phase orthorhombic structure and were crack-free. The elastic moduli of BaUO4 were determined from the longitudinal and shear sound velocities and from micro-indentation tests. The Debye temperature was also determined from the sound velocities and lattice parameter measurements. The thermal conductivity of BaUO4 was calculated from the measured density at room temperature, literature values of heat capacity, and thermal diffusivity measured by the laser flash method in vacuum. The thermophysical properties of BaUO4 were examined and compared with literature data for other barium ternary oxides and SrUO4

  4. The DIRC detector at BaBar

    International Nuclear Information System (INIS)

    A dedicated particle identification system based on the Detection of Internally Reflected Cherenkov (DIRC) light will be used in the BaBar detector. We provide an overview of the DIRC concept, design, and expected performance of the production device and a status report on its construction and commissioning. The DIRC is expected to be operating in the BaBar detector on beam line at the PEP-II B Factory in late spring 1999

  5. AMiBA First SZ Measurements

    Science.gov (United States)

    Lin, K.-Y.; Wu, J.-H. P.; Umetsu, K.; Kock, P.; Liu, G.-C.; Nishioka, H.; Huang, C.-W.; Liao, Y.-W.; Wang, F.-C.; Ho, P.

    2008-10-01

    Y.T.Lee Array for Microwave Background Anisotropy (AMiBA) is an array utilizing the 90GHz band to measure the CMB power spectrum and the Sunyaev-Zeldovich effect of galaxy clusters. The first stage with seven antennae has been completed, and the second stage with thirteen antennae is being constructed. Using the seven-element array, AMiBA has performed observations on six massive galaxy clusters at redshifts 0.09 - 0.32 during 2007.

  6. The AMiBA Hexapod Telescope Mount

    OpenAIRE

    Koch, Patrick M.; Kesteven, Michael; Nishioka, Hiroaki; Jiang, Homin; Lin, Kai-Yang; Umetsu, Keiichi; Huang, Yau-De; Raffin, Philippe; Chen, Ke-Jung; Ibanez-Romano, Fabiola; Chereau, Guillaume; Huang, Chih-Wei Locutus; Chen, Ming-Tang; Ho, Paul T. P.; Pausch, Konrad

    2009-01-01

    AMiBA is the largest hexapod astronomical telescope in current operation. We present a description of this novel hexapod mount with its main mechanical components -- the support cone, universal joints, jack screws, and platform -- and outline the control system with the pointing model and the operating modes that are supported. The AMiBA hexapod mount performance is verified based on optical pointing tests and platform photogrammetry measurements. The photogrammetry results show that the defo...

  7. High-Spin States in 124Ba

    International Nuclear Information System (INIS)

    High-spin states in 124Ba were populated using the 64Ni(64Ni, 4n)124Ba reaction at beam energies of 255 and 261 MeV. Gamma-ray coincidences were measured using the EUROBALL detector array. The charged-particle detector array DIAMANT provided channel selection. The previously known rotational bands are extended to higher spins. Five new bands are observed, one of them extends up to the spin 40ℎ region. (author)

  8. High-Spin States in 124Ba

    Science.gov (United States)

    Al-Khatib, A.; Singh, A. K.; Huebel, H.; Bringel, P.; Buerger, A.; Neusser, A.; Schoenwasser, G.; Hagemann, G. B.; Hansen, C. R.; Herskind, B.; Sletten, G.; Algora, A.; Dombradi, Zs.; Gal, J.; Kalinka, G.; Molnar, J.; Nyako, B. M.; Sohler, D.; Timar, J.; Zolnai, L.; Kmiecik, M.; Maj, A.; Styczen, J.; Zuber, K.; Hauschild, K.; Korichi, A.; Lopez-Martens, A.; Roccaz, J.; Siem, S.; Hannachi, F.; Scheurer, J. N.; Bednarczyk, P.; Byrski, Th.; Curien, D.; Dorvaux, O.; Duchene, G.; Gall, B.; Khalfallah, F.; Piqueras, I.; Robin, J.; Juhasz, K.; Patel, S. B.; Evans, A. O.; Rainovski, G.; Airoldi, A.; Benzoni, G.; Bracco, A.; Camera, F.; Million, B.; Mason, P.; Paleni, A.; Sacchi, R.; Wieland, O.; Petrache, C. M.; Petrache, D.; La Rana, G.; Moro, R.; de Angelis, G.; Fallon, P.; Lee, I.-Y.; Lisle, J. C.; Cederwall, B.; Lagergren, K.; Lieder, R. M.; Podsvirova, E.; Gast, W.; Jaeger, H.; Redon, N.; Goergen, A.

    2005-04-01

    High-spin states in 124Ba were populated using the 64Ni(64Ni,4n)124Ba reaction at beam energies of 255 and 261 MeV. Gamma-ray coincidences were measured using the EUROBALL detector array.The charged-particle detector array DIAMANT provided channel selection. The previously known rotational bands are extended to higher spins. Five new bands are observed, one of them extends up to the spin 40 hbar region.

  9. Liver Transplantation in Brazil.

    Science.gov (United States)

    Bittencourt, Paulo Lisboa; Farias, Alberto Queiroz; Couto, Claudia Alves

    2016-09-01

    Over 1700 liver transplantations (LTs) are performed annually in Brazil. In absolute terms, the country performs more LT surgeries than anywhere else in Latin America and is third worldwide. However, due to its increasing population and inadequate donor organ supply, the country averages 5-10 LTs per million population, far lower than required. There is a marked heterogeneity in organ donation and LT activity throughout the country. Access to LT in the underprivileged North, Midwest, and Northeast regions of Brazil is scarce. Major challenges for the future of LT in Brazil will be to increase organ donation and access to LT. The reduction of those geographical disparities in donation, organ procurement, and LT due to political and financial constraints is of utmost importance. Liver Transplantation 22 1254-1258 2016 AASLD. PMID:27228568

  10. AMiBA: System Performance

    CERN Document Server

    Lin, Kai-Yang; Ho, Paul T P; Huang, Chih-Wei Locutus; Liao, Yu-Wei; Liu, Guo-Chin; Koch, Patrick M; Molnar, Sandor M; Nishioka, Hiroaki; Umetsu, Keiichi; Wang, Fu-Cheng; Wu, Jiun-Huei Proty; Kestevan, Michael; Birkinshaw, Mark; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Chen, Ming-Tang; Martin-Cocher, Pierre; Han, Chih-Chiang; Huang, Yau-De; Hwang, Yuh-Jing; Ibañez-Roman, Fabiola; Jiang, Homin; Kubo, Derek Y; Oshiro, Peter; Raffin, Philippe; Wei, Tashun; Wilson, Warwick; Chen, Ke-Jung; Chiueh, Tzihong

    2009-01-01

    The Y.T. Lee Array for Microwave Background Anisotropy (AMiBA) started scientific operation in early 2007. This work describes the optimization of the system performance for the measurements of the Sunyaev-Zel'dovich effect for six massive galaxy clusters at redshifts $0.09 - 0.32$. We achieved a point source sensitivity of $63\\pm 7$ mJy with the seven 0.6m dishes in 1 hour of on-source integration in 2-patch differencing observations. We measured and compensated for the delays between the antennas of our platform-mounted interferometer. Beam switching was used to cancel instrumental instabilities and ground pick up. Total power and phase stability were good on time scales of hours, and the system was shown to integrate down on equivalent timescales of 300 hours per baseline/correlation, or about 10 hours for the entire array. While the broadband correlator leads to good sensitivity, the small number of lags in the correlator resulted in poorly measured bandpass response. We corrected for this by using extern...

  11. Fish associated with aquatic macrophytes in the Chacororé-Sinhá Mariana Lake system and Mutum River, Pantanal of Mato Grosso, Brazil Peixes associados a macrófitas aquáticas no sistema de baías Chacororé-Sinhá Mariana e rio Mutum, Pantanal - MT

    Directory of Open Access Journals (Sweden)

    EB. Pacheco

    2009-02-01

    Full Text Available On the left bank of the Cuibá River, one of the main tributaries of the Pantanal in Mato Grosso, are located the Chacororé and Sinhá Mariana Lakes and the Mutum River, the littoral regions of which are covered with aquatic macrophytes, dominated by the species Eichhornia crassipes and Eichhornia azurea. To examine the ichthyofauna associated with this vegetation, in the year 2003, 3510 fish were collected, distributed among 83 species, and the limnological variables verified near the macrophyte stands where they were sampled. The most abundant and richest order was the Characiformes, followed by the Gymnotiformes and Siluriformes. Analysis of similarity showed a very low, or null, index that the limnological conditions and morphology of the aquatic macrophyte species provide habitat sufficiently homogeneous to give. The limnological conditions and morphology of the aquatic macrophyte species provide a sufficient habitat heterogeneity to give very low, or null, index values. Thus, environmental conservation measures should be more effective in promoting the conservation of the species, given the high levels of biological diversity found in the habitats studied.À margem esquerda do rio Cuiabá, um dos principais afluentes do Pantanal matogrossense, estão localizadas as baías Chacororé e Sinhá Mariana e o rio Mutum, cujas regiões litorâneas são cobertas por macrófitas aquáticas. Com o intuito de se verificar a ictiofauna associada a esta vegetação, no ano de 2003, foram coletados 3510 peixes distribuídos em 83 espécies e verificados os valores das variáveis limnológicas próximo aos bancos de macrófitas onde estes foram amostrados. A ordem mais abundante e de maior riqueza foi Characiformes, seguida por Gymnotiformes e Siluriformes. As condições limnológicas e a morfologia das espécies de macrófitas proporcionam heterogeneidade de hábitat suficiente para obtenção de valores dos índices de similaridade baixos ou mesmo

  12. Vulnerabilidade no manejo dos resíduos de serviços de saúde de João Pessoa (PB, Brasil Vulnerability of management of waste from health services in João Pessoa, State of Paraíba (Brazil

    Directory of Open Access Journals (Sweden)

    Yoly Souza Ramos

    2011-08-01

    Full Text Available Observa-se na academia a discussão sobre os resíduos sólidos urbanos (RSU, sendo os oriundos de serviços de saúde (RSS parte integrante dos RSU, não necessariamente pela quantidade gerada, mas pelo potencial de risco que afeta à saúde coletiva e ambiental. Objetivou-se verificar a vulnerabilidade do manejo dos RSS, nos estabelecimentos de atenção primária, secundária e terciária de João Pessoa - PB. Foi uma pesquisa quantitativa, exploratória e descritiva do manejo dos RSS, tendo como instrumentos de coleta de dados checklist e avaliação analítica da vulnerabilidade do manejo dos RSS. Percebeu-se que 21,05% dos estabelecimentos não realizam segregação, 26,34% não padronizam os sacos plásticos e 47,37% dos trabalhadores responsáveis pela coleta não possuem treinamento para o manuseio dos RSS. Conclui-se que a vulnerabilidade do manejo dos RSS de João Pessoa - PB foi significativo 48,02%, podendo contribuir para a deterioração da saúde ambiental e coletiva, acarretando problema de saúde pública.The discussion in the academy on solid urban waste residues (UWR is analyzed, with health service waste (HSW being an integral part of UWR, not necessarily in terms of the amount generated, but due to the risk potential to collective and environmental health. The scope of the study was to verify the vulnerability of UWR handling in primary, secondary and tertiary healthcare units in João Pessoa in the state of Paraíba. This involved a quantitative, exploratory and descriptive investigation of the handling of UWR, using a checklist and analytical evaluation of the vulnerability of HSW handling for data collection. It was detected that 21.05% of the establishments failed to separate hazardous waste, 26.34% did not standardize plastic disposal bags, and 47.37% of the workers responsible for collection were not trained to handle HSW. It was concluded that the vulnerability of HSW handling in João Pessoa in the order of 48

  13. Caracterização da assembléia fitobentônica da praia do Kutuca, ilha da Marambaia, baía de Sepetiba, RJ, Brasil Characterization of the phytobenthic assemblage at Kutuca beach, Marambaia island, Sepetiba bay, Rio de Janeiro State, Brazil

    Directory of Open Access Journals (Sweden)

    Renata Perpetuo Reis

    2009-06-01

    Full Text Available Devido aos potenciais problemas ambientais na baía de Sepetiba, sítios de monitoramento ambiental nesta baía se tornam necessários. A praia do Kutuca foi selecionada para este propósito por possuir dados pretéritos sobre a sua estrutura da comunidade, com coletas realizadas em 1999, que detectou alta diversidade. Durante 21 meses, dezembro de 2003 a julho de 2005, foram coletados 63 táxons (Chlorophyta, 22%; Ochrophyta, 16% e Rhodophyta, 62%. Na amostragem destrutiva, foram usados seis quadrados aleatórios (25×25 cm, colocados em cada uma das duas linhas de 20 m horizontais ao costão. Os resultados de 1999 foram comparados com estes e se observou que a biomassa passou de 490,9±201,2 g.m-2 para 199,57±29,33 g.m-2, a riqueza de 13,0±4,5 para 5,06±1,72, a diversidade H'=2,2±0,41 para H'=1,3±0,39 e a equitabilidade J'= 0,65± 0,06 para J'= 0,55±0,17.Quatro táxons (Sargassum spp., Caulerpa sertularioides (S.G. Gmel. M. Howe, Hypnea musciformis (Wulfen in Jacquin J.V. Lamour. e Gracilaria cervicornis (Turner J. Agardh mais representativos contribuíram com 15 a 33% de biomassa, enquanto que em 1999, oito táxons (Caulerpa sertularioides,Dictyopteris delicatula J.V. Lamour., Gracilaria cervicornis, Sargassum spp., Codium taylorii P.C. Silva, Padina gymnospora (Kützing Sonder, Galaxaura marginata (Ellis & Solander J.V. Lamouroux e Hypnea spinella (C. Agardh Kütz. contribuíram com 5 a 20% de biomassa. Esses resultados mostraram a existência de distúrbios, provavelmente decorrentes das dragagens para aumento do canal de navegação para o Porto de Sepetiba, além da entrada de frentes meteorológicas. Apesar da avaliação do potencial invasivo da espécie exótica Kappaphycus alvarezii (Doty Doty ex Silva ter sido negativo neste período, se recomenda que o seu monitoramento seja permanente.Due to potential environmental problems in Sepetiba Bay, it is necessary to identify sites for environmental monitoring. Kutuca Beach was

  14. Eficiência no uso da água na cana-de-açúcar sob diferentes lâminas de irrigação e níveis de zinco no litoral paraibano Water use efficiency in sugarcane crop under different depths of irrigation and zinc doses in coastal region of Paraíba, Brazil

    Directory of Open Access Journals (Sweden)

    Carlos H. A. Farias

    2008-09-01

    Full Text Available Esta pesquisa foi conduzida em área experimental da Fazenda Capim II, localizada no Município de Capim - PB, com o intuito de determinar a eficiência no uso da água (EUA pela cana-de-açúcar (Saccharum officinarum L., cultivar SP 79-1011. O delineamento experimental consistiu em blocos casualizados, com três repetições, em esquema fatorial 5 x 5. Os tratamentos referentes à lâmina de irrigação foram: sequeiro; 25; 50; 75 e 100% da ETc (1.026,57 mm com as respectivas precipitações efetivas de 780,06; 713,31; 487,54; 243,71 e 194,51 mm; os níveis de zinco estudados foram 0; 1; 2; 3 e 4 kg ha-1. O equipamento de irrigação utilizado foi do tipo pivô central, com turno de rega de nove dias. A eficiência no uso da água (EUA na produção de colmos e de açúcar aumenta à medida que se eleva a lâmina total de água aplicada à cultura. Para a região norte-paraibana dos tabuleiros costeiros, a EUA na produção de colmo e de açúcar, de forma maximizada, é 7,12 e 0,67 kg m-3, respectivamente.The study was conducted in an experimental area of the Capim II Farm, located in the municipality of Capim - PB, Brazil, with the objective of determining the efficiency in the use of the water (WUE for the sugarcane crop (Saccharum officinarum L., cultivar SP 79-1011. The experimental design consisted of randomized blocks, with three replications in a 5 x 5 factorial design. The irrigation treatments were: rainfed; 25; 50; 75 and 100% of the ETc (1,026.57 mm with the respective effective precipitations of 780.06; 713.31; 487.54; 243.71 and 194.51 mm. The levels of zinc studied were 0; 1; 2; 3 and 4 kg ha-1. The irrigation equipment used in the study was a central pivot with irrigation frequency of nine days. The water use efficiency (WUE of sugarcane crop in terms of cane production and of sugar increased with the depth of water applied. For the Coastal Table Lands of northern Paraiba, the maximized WUE for sugarcane and sugar production is

  15. Eand P opportunities in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Castilho, Marcelo [National Petroleum Agency of Brasil (Brazil)

    2011-07-01

    Brazil is one of the world's largest economies and the country also has significant heavy oil reserves. This report from the National Petroleum Agency of Brazil aims at presenting the situation of the oil and gas sector in Brazil in terms of resources, production, regulatory framework and opportunities for the future. Brazil has numerous sedimentary basins at its disposal, most of them being prospected by both national and foreign companies from all over the world. Brazil has over 14 billion barrels of proven reserves, its production is 2,1 MMBbl/d and heavy oil represents almost 40% of that production. The National Petroleum Agency of Brazil is responsible for the implementation of oil sector policy with the aims of maintaining self-sufficiency, implementing good practices in terms of health and safety, and increasing local content. This paper pointed out that Brazil has an important opportunity to enhance its energy sector through the development of heavy oil.

  16. Geologic and Geotechnical contributions to the Lagoa da Rabicha and Cachoeira mines projects, Lagoa Real, State of Bahia, Brazil

    International Nuclear Information System (INIS)

    The procedures and systematics involved in obtaining basic geologic-geotechnical, geomechanical and hydrogeotechnical parameters to serve as an aid in the planning of mining activities for the Lagoa da Rabicha and Cachoeira deposists, located in the Lagoa Real uranium District, are presented and discussed. These deposits occur in the Caetite massif, composed mainly of Gneissic lithologies. The studies were performed in order to provide the essential elements for an initial Geologic-Geotechnical characterization of the massifs. (D.J.M.)

  17. Brazil: anchoring the region

    International Nuclear Information System (INIS)

    The role of Brazil's state-run petroleum company, Petrobras, in providing a national supply of oil and natural gas and their products to Brazil was discussed. Petrobras is the sole state-run enterprise which carries out research, exploration, production, refining, imports, exports and the transportation of oil and gas in Brazil. Petrobras has built a complete and modern infrastructure made up of refineries, distribution bases, terminals and oil and gas pipelines. Recently (1995) the Brazilian National Assembly approved legislation that while confirming the state monopoly, also provides private contractors and other state-owned companies ways to participate in the petroleum sector. There exists a great potential for oil and gas in many of Brazil's 29 sedimentary basins. The regulatory legislation also created two new organs to deal with the partial deregulation of the petroleum sector, the National Board for Energy Policy and the National Petroleum Agency. The first of these will deal with policy issues, measures and guidelines regarding regional energy supply and demand and specific programs such as those affecting natural gas, fuel alcohol, coal and nuclear energy. The National Petroleum Agency will manage the hydrocarbon sector on behalf of the government. Its functions will include regulation and monitoring of the sector, managing the bidding process for concessions for exploration and production, and other related activities. The new legislation opens up new horizons for the Brazilian oil sector, providing opportunities for private investment, both domestic and foreign, as well as for new technological capabilities associated with these investments. 1 tab., 6 figs

  18. Chikungunya risk for Brazil

    Directory of Open Access Journals (Sweden)

    Raimunda do Socorro da Silva Azevedo

    2015-01-01

    Full Text Available This study aimed to show, based on the literature on the subject, the potential for dispersal and establishment of the chikungunya virus in Brazil. The chikungunya virus, a Togaviridae member of the genusAlphavirus, reached the Americas in 2013 and, the following year, more than a million cases were reported. In Brazil, indigenous transmission was registered in Amapa and Bahia States, even during the period of low rainfall, exposing the whole country to the risk of virus spreading. Brazil is historically infested by Ae. aegypti and Ae. albopictus, also dengue vectors. Chikungunya may spread, and it is important to take measures to prevent the virus from becoming endemic in the country. Adequate care for patients with chikungunya fever requires training general practitioners, rheumatologists, nurses, and experts in laboratory diagnosis. Up to November 2014, more than 1,000 cases of the virus were reported in Brazil. There is a need for experimental studies in animal models to understand the dynamics of infection and the pathogenesis as well as to identify pathophysiological mechanisms that may contribute to identifying effective drugs against the virus. Clinical trials are needed to identify the causal relationship between the virus and serious injuries observed in different organs and joints. In the absence of vaccines or effective drugs against the virus, currently the only way to prevent the disease is vector control, which will also reduce the number of cases of dengue fever.

  19. Knowledge and use of wildlife by hunters in the Brazilian semiarid region: a case study in Paraíba State

    OpenAIRE

    José Aécio Alves Barbosa; José Otávio Aguiar

    2015-01-01

    The present study was undertaken in a traditional community in the semiarid region of Paraíba State, Northeastern Brazil, with the purpose of registering the main animal species hunted and evaluating the implications of these practices in terms of the conservation of local fauna. A total of 78 species of wild tetrapod vertebrates were cited by 24 interviewees as being hunted in the region. These animals were separated into four different animals groups (mammals, birds, reptiles and amphibians...

  20. Measurement of the cross-sections of radioactive Ba isotopes

    International Nuclear Information System (INIS)

    The radioactive Ba isotopes are produced in the interaction of 60 MeV/u 18O with 232Th. Ba is separated from thorium and complex reaction product mixture by BaCl2 precipitation and purified. 133Ba is used as the tracer to determine chemical yield of Ba. The Ba fraction is measured by off-line gamma-ray spectroscopy. The formation cross-sections of the individual Ba isotope is calculated from the intensities of gamma-ray peaks of each Ba isotope as well as relative nuclear data. The results show the n-deficient Ba isotopes still have higher formation cross-sections under the conditions of intermediate energy projectile and thick targets

  1. Ciclo gametogênico e comportamento reprodutivo de Iphigenia brasiliana (Mollusca, Bivalvia, Donacidae no estuário do rio Subaé, Baía de Todos os Santos, Bahia, Brasil Gametogenic cycle and reproductive behavior of Iphigenia brasiliana (Mollusca, Bivalvia, Donacidae in the Subaé river estuary, Todos os Santos Bay, Bahia, Brazil

    Directory of Open Access Journals (Sweden)

    Patrícia P. Silva

    2012-12-01

    Full Text Available Este estudo teve como objetivos descrever o ciclo gametogênico e o comportamento reprodutivo da população de Iphigenia brasiliana (Lamarck,1818 no estuário do rio Subaé, Baía de Todos os Santos, Bahia. Os bivalves foram coletados de novembro de 2001 a novembro de 2002. Um total de 244 espécimes foi medido (eixo anteroposterior, eviscerado, fixado, desidratado e incluído em parafina. O estudo histológico das gônadas foi realizado através de cortes seriados do tecido gonadal, de 5 mm de espessura, e corados pela HE. O tamanho médio mínimo da primeira maturação sexual (Lpm foi estimado a partir da distribuição das frequências relativas de jovens e adultos, por classe de comprimento dos indivíduos. As frequências relativas dos sexos em cada estádio de desenvolvimento foram consideradas conjuntamente para a análise do comportamento reprodutivo da população, e, em separado, para avaliar a sincronia do ciclo sexual entre machos e fêmeas. Foi observada uma variação de tamanhos entre 9,1 e 66,6 mm, com comprimento médio de 50,2 mm. O estudo não demonstrou diferença significativa entre os tamanhos de machos e fêmeas. Não foi possível observar a diferenciação de sexos em 2,1% dos indivíduos analisados. 51,6% dos indivíduos foram identificados como machos (M e 46,3% como fêmeas (F, não sendo constatadas diferenças significativas entre o número médio de machos e fêmeas, resultando numa proporção de M:F de 1,1:1. O Lpm foi estimado em 11,4 mm, mas apenas ao alcançarem comprimento médio de 34,4 mm, todos os indivíduos foram considerados adultos. Foram caracterizados quatro estádios de evolução do desenvolvimento gonadal em fêmeas e machos. A análise dos diferentes estádios permitiu a observação dos fenômenos de atresia e inversão sexual em fêmeas. O ciclo reprodutivo apresentou eliminação contínua de gametas, com maiores intensidades reprodutivas nos meses de novembro de 2001 a abril de 2002 e, tamb

  2. Ciclo gametogênico e comportamento reprodutivo de Iphigenia brasiliana (Mollusca, Bivalvia, Donacidae no estuário do rio Subaé, Baía de Todos os Santos, Bahia, Brasil Gametogenic cycle and reproductive behavior of Iphigenia brasiliana (Mollusca, Bivalvia, Donacidae in the Subaé river estuary, Todos os Santos Bay, Bahia, Brazil

    Directory of Open Access Journals (Sweden)

    Patrícia P. Silva

    2012-01-01

    Full Text Available Este estudo teve como objetivos descrever o ciclo gametogênico e o comportamento reprodutivo da população de Iphigenia brasiliana (Lamarck,1818 no estuário do rio Subaé, Baía de Todos os Santos, Bahia. Os bivalves foram coletados de novembro de 2001 a novembro de 2002. Um total de 244 espécimes foi medido (eixo anteroposterior, eviscerado, fixado, desidratado e incluído em parafina. O estudo histológico das gônadas foi realizado através de cortes seriados do tecido gonadal, de 5 mm de espessura, e corados pela HE. O tamanho médio mínimo da primeira maturação sexual (Lpm foi estimado a partir da distribuição das frequências relativas de jovens e adultos, por classe de comprimento dos indivíduos. As frequências relativas dos sexos em cada estádio de desenvolvimento foram consideradas conjuntamente para a análise do comportamento reprodutivo da população, e, em separado, para avaliar a sincronia do ciclo sexual entre machos e fêmeas. Foi observada uma variação de tamanhos entre 9,1 e 66,6 mm, com comprimento médio de 50,2 mm. O estudo não demonstrou diferença significativa entre os tamanhos de machos e fêmeas. Não foi possível observar a diferenciação de sexos em 2,1% dos indivíduos analisados. 51,6% dos indivíduos foram identificados como machos (M e 46,3% como fêmeas (F, não sendo constatadas diferenças significativas entre o número médio de machos e fêmeas, resultando numa proporção de M:F de 1,1:1. O Lpm foi estimado em 11,4 mm, mas apenas ao alcançarem comprimento médio de 34,4 mm, todos os indivíduos foram considerados adultos. Foram caracterizados quatro estádios de evolução do desenvolvimento gonadal em fêmeas e machos. A análise dos diferentes estádios permitiu a observação dos fenômenos de atresia e inversão sexual em fêmeas. O ciclo reprodutivo apresentou eliminação contínua de gametas, com maiores intensidades reprodutivas nos meses de novembro de 2001 a abril de 2002 e, tamb

  3. High spin properties of 124Ba

    Indian Academy of Sciences (India)

    K Ilangovan; N Arunachalam

    2002-03-01

    The 124Ba nucleus is investigated on the basis of the method of statistical mechanics by assuming the nucleons to move in triaxially deformed Nilsson potential. The variation in the Fermi energies of protons and neutrons is studied as a function of spin and temperature. The Fermi energies determined as a function of angular momentum is used to study the dependence of shell correction on angular momentum using the Strutinsky smoothing procedure. The most important observation is that the shell correction is almost the same for all spins for 124Ba. The spin cutoff parameter and the single particle level density parameter are studied as a function of spin and temperature. Constant entropy lines drawn by plotting the excitation energy against angular momentum are found to be roughly at constant energy above the yrast line and are almost equally spaced. It is observed that no yrast traps are present for 124Ba.

  4. BaMO3 (M=Zr, Hf, Sn) material dependence of Tc reduction in BaMO3-doped SmBa2Cu3Oy, films

    International Nuclear Information System (INIS)

    For the improvement of superconducting properties of BaMO3 (M=Zr, Sn, HQ-doped REBa2Cu3Oy films, we focused on the Tc reduction caused by lattice misfit between BaMO3 and REBa2Cu3Oy. We compared the influence on the Tc reduction of BaZrO3, BaSnO3 and BaHfO3-doped SmBa2Cu3Or (SmBCO) films with various BMO contents. From the correlation between configuration of nanorods and c-axis expansion, it was suggested that the lattice strain working on the SmBCO matrix became stronger in the order of BaHfO3, BaZrO3 and BaSnO3. Therefore, the combination of SmBCO and BaHfO3 is better regarding the suppression of the Tc reduction compared with other combinations of SmBCO and BaMO3.

  5. Interfaz web para BaDELE3000

    OpenAIRE

    González Izquierdo, Adrián

    2012-01-01

    El objetivo del presente Trabajo de Fin de Carrera es el estudio, diseño e implementación de una aplicación web que sirva de interfaz para una base de datos relacional llamada BaDELE3000 que trabaja actualmente con unos 3000 lexemas y sigue en fase de desarrollo. BaDELE modela conceptos y principios lingüísticos más o menos complejos, dentro del marco de la Teoría Sentido-Texto. El desarrollo de esta interfaz, permitirá a personas autorizadas, seguir nutriendo la base de datos. La memoria est...

  6. Track Finding Efficiency in BaBar

    CERN Document Server

    Allmendinger, T; Brown, D N; Choi, H; Christ, S; Covarelli, R; Davier, M; Denig, A G; Fritsch, M; Hafner, A; Kowalewski, R; Long, O; Lutz, A M; Martinelli, M; Muller, D R; Nugent, I M; Pegna, D Lopes; Purohit, M V; Prencipe, E; Roney, J M; Simi, G; Solodov, E P; Telnov, A V; Varnes, E; Waldi, R; Wang, W F; White, R M

    2012-01-01

    We describe several studies to measure the charged track reconstruction efficiency and asymmetry of the BaBar detector. The first two studies measure the tracking efficiency of a charged particle using $\\tau$ and initial state radiation decays. The third uses the $\\tau$ decays to study the asymmetry in tracking, the fourth measures the tracking efficiency for low momentum tracks, and the last measures the reconstruction efficiency of $K_S^0$ particles. The first section also examines the stability of the measurements vs BaBar running periods.

  7. Heliostat tailored to Brazil

    OpenAIRE

    Pfahl, Andreas; Bezerra, Pedro; Hölle, Erwin; Liedke, Phillip; Teramoto, Erico Tadao; Hertel, Johannes; Lampkowski, Marcelo; Oliveira, L.

    2015-01-01

    For Brazil it is important to realize a high local production share because of high import tax rates. The rim drive concept offers an alternative for expensive heliostat drive solutions with slew and linear drives from abroad. By (locally produced) rims the demands on the drives regarding strength and precision are reduced to a very low value and low cost drives can be used. Sandwich facets (which are usually foreseen for rim drive heliostats) are not available from Brazilian manufacturers an...

  8. Deforestation, Rondonia, Brazil

    Science.gov (United States)

    1992-01-01

    This view of deforestation in Rondonia, far western Brazil, (10.0S, 63.0W) is part of an agricultural resettlement project which ultimately covers an area about 80% the size of France. The patterns of deforestation in this part of the Amazon River Basin are usually aligned adjacent to highways, secondary roads, and streams for ease of access and transportation. Compare this view with the earlier 51G-37-062 for a comparison of deforestation in the region.

  9. Drought Preparedness in Brazil

    OpenAIRE

    Gutiérrez, Ana Paula A.; Engle, Nathan L.; De Nys, Erwin; Molejón, Carmen; Sávio Martins, Eduardo

    2014-01-01

    Large portions of Brazil's Northeast have experienced an intense and prolonged drought for the majority of 2010–2013. This drought, along with other droughts that have hit the South in recent years, has sparked a new round of discussions to improve drought policy and management at the federal and state levels. To assist with these efforts, the World Bank recently conducted a series of evaluations on national and sub-national drought preparedness measures and approaches across five country cas...

  10. Brazil: Selected Issues Paper

    OpenAIRE

    International Monetary Fund

    2012-01-01

    This Selected Issues Paper discusses the macroeconomic implications of pension reforms in Brazil. It assesses empirically the relationship between fiscal policy and the real effective exchange rate in emerging markets and draws policy implications. It reviews the current status of local capital markets in the country, the key challenges, and policy options for further development. The paper also provides a detailed description of consumer credit developments and analyzes recent indicators of ...

  11. Radiopharmacy education in Brazil

    Directory of Open Access Journals (Sweden)

    Ralph Santos-Oliveira

    2014-01-01

    Full Text Available The number of schools of pharmacy has been increasing each year in Brazil. From 2002 to 2013 over 300 new schools were opened in Brazil with a final number of 415 schools of pharmacy in operation around the country. Of these schools, only 28 schools offer a course in radiopharmacy (7.77%. However, the demand for such trained professionals has grown exponentially in Brazil, especially following amendment 49 (February 2006 that broke the monopoly on the production, distribution, and marketing of short half-life radiopharmaceuticals, and the recent constitutional amendment project 517/2010, which was approved in the last instance and is waiting for final approval by the President. Thus, in this scenario, there are a total of 417 radiopharmacy services across the country waiting for qualified professionals to fill posts. However, while there are insufficient trained professionals, radiopharmacy services under the aegis of Agencia Nacional de Vigilancia Sanitaria - Brazilian Health Surveillance Agency allow biomedical scientists and biologists to perform specialized functions as developed in radiopharmacy services without the presence of radiopharmacists.

  12. Intercomparision of Standardized Radioactive Solution of 133Ba

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>133Ba is a very important nuclide in the field of radiation, for example applied to efficienency calibration of the γ spectromenter. To ensure the accurate and reliable of measurement results of 133Ba, to

  13. Incorporation of Ba in Al and Fe pollucite

    Science.gov (United States)

    Vance, Eric R.; Gregg, Daniel J.; Griffiths, Grant J.; Gaugliardo, Paul R.; Grant, Charmaine

    2016-09-01

    Ba, the transmutation product of radioactive Cs, can be incorporated at levels of up to ∼0.07 formula units in Cs(1-2x)BaxAlSi2O6 aluminium pollucite formed by sol-gel methods and sintering at 1400 °C, with more Ba forming BaAl2Si2O8 phases. The effect of Ba substitution in pollucite-structured CsFeSi2O6 was also studied and no evidence of Ba substitution in the pollucite structure via cation vacancies or Fe2+ formation was obtained. The Ba entered a Fe-silicate glass structure. Charge compensation was also attempted with a Cs+ + Fe3+ ↔ Ba2+ + Ni2+ scheme but again the Ba formed a glass and NiO was evident. PCT leaching data showed CsFeSi2O6 to be very leach resistant.

  14. Evidence of asymmetric top in 130Ba

    International Nuclear Information System (INIS)

    Introduced is a new relation connecting moment of inertia, Lipas parameter and asymmetric rotor model energies and put forward much closer trend in odd even staggering of quasi γ-band. A different view point regarding generation of quasi γ-band in 130Ba have been presented

  15. Spectroscopy of Ba and Ba$^+$ deposits in solid xenon for barium tagging in nEXO

    CERN Document Server

    Mong, B; Walton, T; Chambers, C; Craycraft, A; Benitez-Medina, C; Hall, K; Fairbank, W; Albert, J B; Auty, D J; Barbeau, P S; Basque, V; Beck, D; Breidenbach, M; Brunner, T; Cao, G F; Cleveland, B; Coon, M; Daniels, T; Daugherty, S J; DeVoe, R; Didberidze, T; Dilling, J; Dolinski, M J; Dunford, M; Fabris, L; Farine, J; Feldmeier, W; Fierlinger, P; Fudenberg, D; Giroux, G; Gornea, R; Graham, K; Gratta, G; Heffner, M; Hughes, M; Jiang, X S; Johnson, T N; Johnston, S; Karelin, A; Kaufman, L J; Killick, R; Koffas, T; Kravitz, S; Krucken, R; Kuchenkov, A; Kumar, K S; Leonard, D S; Licciardi, C; Lin, Y H; Ling, J; MacLellan, R; Marino, M G; Moore, D; Odian, A; Ostrovskiy, I; Piepke, A; Pocar, A; Retiere, F; Rowson, P C; Rozo, M P; Schubert, A; Sinclair, D; Smith, E; Stekhanov, V; Tarka, M; Tolba, T; Twelker, K; Vuilleumier, J -L; Walton, J; Weber, M; Wen, L J; Wichoski, U; Yang, L; Yen, Y -R; Zhao, Y B

    2014-01-01

    Progress on a method of barium tagging for the nEXO double beta decay experiment is reported. Absorption and emission spectra for deposits of barium atoms and ions in solid xenon matrices are presented. Excitation spectra for prominent emission lines, temperature dependence and bleaching of the fluorescence reveal the existence of different matrix sites. A regular series of sharp lines observed in Ba$^+$ deposits is identified with some type of barium hydride molecule. Lower limits for the fluorescence quantum efficiency of the principal Ba emission transition are reported. Under current conditions, an image of $\\le10^4$ Ba atoms can be obtained. Prospects for imaging single Ba atoms in solid xenon are discussed.

  16. Syntheses and characterization of two new selenides Ba5Al2Se8 and Ba5Ga2Se8

    International Nuclear Information System (INIS)

    Graphical abstract: Display Omitted Research highlights: → Two new compounds Ba5M2Se8 (M = Al, Ga) have been synthesized for the first time. → The crystal structures contain isolated MSe4 tetrahedra separated by Ba atoms. → The measured optical band gap is 2.51(2) eV for Ba5Ga2Se8. → The Ba 5d orbitals were found to have significant contribution to the energy bands around Fermi level. - Abstract: Two new barium selenides Ba5Al2Se8 and Ba5Ga2Se8 have been synthesized by solid-state reactions. The structures of Ba5Ga2Se8 and Ba5Al2Se8 were determined by single-crystal X-ray diffraction method and the Rietveld method, respectively. The two isostructural compounds crystallize in space group Cmca of the orthorhombic system with isolated MSe4 (M = Al, Ga) tetrahedra separated by Ba atoms. The optical band gap of 2.51(2) eV for Ba5Ga2Se8 was deduced from the diffuse reflectance spectrum. Band structure calculation indicates that Ba5Ga2Se8 is a direct-gap semiconductor. The valence band maximum is dominated by Se 4p orbitals, while the Ba 5d orbitals have the largest contribution to bottom of the conduction band.

  17. BRAZIL'S CARBON BUDGET FOR 1990

    Science.gov (United States)

    The recent history of deforestation in the Amazon region of Brazil is well known. ajor reason for alarm over the rate and magnitude of deforestation in Brazil has been concern that the reduction in vegetation releases carbon dioxide (CO2) and other greenhouse gases that may contr...

  18. Brazil: Intercultural Experiential Learning Aid.

    Science.gov (United States)

    Brigham Young Univ., Provo, UT. Language Research Center.

    This booklet was designed to facilitate interactions and communication with the people of Brazil by providing information about their customs, attitudes and other cultural characteristics which influence their actions and values. A brief description of Brazil is given, covering the following: its size and geography, history, language, economy,…

  19. Nuclear material control in Brazil

    International Nuclear Information System (INIS)

    A general view about the safeguards activities in Brazil is presented. The national system of accounting for and control of nuclear materials is described. The safeguards agreements signed by Brazil are presented, the facilities and nuclear material under these agreements are listed, and the dificulties on the pratical implementation are discussed. (E.G.)

  20. Astronomy in Brazil

    Science.gov (United States)

    Barbuy, Beatriz; Maciel, Walter J.

    2013-01-01

    A historical background combined with political decisions along time explain the increasing importance of Brazil in the world's astronomical scenario. Professional astronomy was triggered in the late sixties and early seventies by the two main historical institutions then existing (ON and IAG/USP), together with the creation of agencies for research and combined with individual actions. There are presently 670 astronomers working in the country, including permanent jobs and graduate students. A brief description of observational facilities and plans to increase access to other facilities is presented.

  1. Social Psychotherapy in Brazil.

    Science.gov (United States)

    Fleury, Heloisa J; Marra, Marlene M; Knobel, Anna M

    2015-10-01

    This paper describes the practice of sociodrama, a method created by J. L. Moreno in the 1930s, and the Brazilian contemporary socio-psychodrama. In 1970, after the Fifth International Congress of Psychodrama was held in Brazil, group psychotherapy began to flourish both in private practice and hospital clinical settings. Twenty years later, the Brazilian health care system added group work as a reimbursable mental health procedure to improve social health policies. In this context, socio-psychodrama became a key resource for social health promotion within groups. Some specific conceptual contributions by Brazilians on sociodrama are also noteworthy. PMID:26401805

  2. Primeira Reportagem da Mosca Minadora em Cebola no Alto Paranaíba

    Directory of Open Access Journals (Sweden)

    Flávia Alves

    2014-12-01

    Abstract. Liriomyza spp. is considered pests in various crops in Brazil. The larvae mine the leaves cook up, reduce the photosynthetic area, cause wilting and premature leaf drop. The objective of this study report the first attack of Liriomyza spp., its damage and survival in onion (Allium cepa L. in Alto Parnaíba-MG. Their occurrence and injury ratings were detected in five of onion crops in 12 (50 plants/ha. Since survival was determined under conditions of controlled temperature. We observed the presence of Liriomyza spp. causing serpentine mines, with direct and negative relationship with the number of mines productivity, a loss of 120 kg ha-1 and survival rate of larva-pupa (57.89% and pupa-adult (63.63%. Thus, this phytophagous insect can become a serious pest in this crop.

  3. Heavy metals adsorption in luvisols and cambisols of Paraíba State

    Directory of Open Access Journals (Sweden)

    Iêde de Brito Chaves

    2009-08-01

    Full Text Available The adsorption of heavy metal can be evaluated by mathematical model described by Langmuir equation. The objective of this study was to evaluate copper and cadmium adsorption in surface samples of Luvisols and Cambisols from Paraíba State, Brazil. In order to quantify these adsorbed elements, 2 g of air-dried soil were equilibrated with 20 mL of solution containing different concentration of Cu (5, 10, 20, 40, 60, 80 mg L-1 and of Cd (20, 30, 50, 100, 150 e 200 mg L-1. The study showed that Langmuir model offered a good fit for Cu and Cd; the soil properties evaluated not correlated with parameters of adsorption of copper and cadmium; Luvisols e Cambisol adsorbs more cadmium and copper, respectively. In both soil cadmium is more easily lost.Key-words: copper, cadmium, mathematical model, environmental impact.

  4. Primeiros dados quali-quantitativos do mexilhão-dourado, Limnoperna fortunei (Dunker), no Delta do Jacuí, no Lago Guaíba e na Laguna dos Patos, Rio Grande do Sul, Brasil e alguns aspectos de sua invasão no novo ambiente Quali-quantitative first data of golden mussel, Limnoperna fortunei (Dunker), in Jacuí Delta, Guaíba Lake and Patos Lagoon and some invasion aspects

    OpenAIRE

    Maria Cristina Dreher Mansur; Cíntia Pinheiro dos Santos; Gustavo Darrigran; Ingrid Heydrich; Claudia T. Callil; Felipe Rossoni Cardoso

    2003-01-01

    At the end of 1998 and the beginning of 1999, the golden mussel Limnoperna fortunei (Dunker, 1857), Mytilidae, originating from Southeast Asia, was registered for the first time in the Guaíba Lake Basin, Rio Grande do Sul State, Brazil. Quantitative samples were taken since the first register and for two years at various localities in the Jacuí Delta, northern limit of Guaíba Lake, and in the south limit of the later where it empties into Patos Lagoon. Samplings in Patos Lagoon revealed the p...

  5. Ba and BaO on W and on Sc2O3 coated W

    International Nuclear Information System (INIS)

    Temperature-programmed desorption (TPD) and Auger electron spectroscopy (AES) are used to characterize the surface layers that form under an evaporating flux of a dispenser cathode (which is a Ba and BaO source) on a W substrate and Sc2O3-coated W substrate to simulate the surface layer of a conventional dispenser cathode and scandate cathode, respectively. The surface layers were prepared while the substrate was either at 940 deg. Cb (1272 K), a typical operating temperature, or at 1125 deg. Cb (1477 K), a typical activation temperature. Our investigation found that a partial layer of BaO formed on W, similar to the surface layer that forms on a dispenser cathode. Heating to the activation temperature causes the BaO to form a stronger bond with W. For the Sc2O3-coated W substrate, heating to the activation temperature is necessary for the inter-diffusion between the Sc2O3 and W to occur. BaO layers form a stronger bond to the inter-diffused layer than to pure W. However, the most important finding is that a stable BaO-containing compound forms and continues to accumulate under the impinging flux on the Sc2O3 and W covered substrate at 940 deg. Cb. Surface emission models describe successfully all other dispenser cathodes, but fail to explain the emission characteristics of scandate cathodes. Raju and Maloney proposed an alternate model, which requires the presence of a thick layer of semi-conducting material. Our finding suggests that it is possible to form a thick layer from simultaneous presence of BaO, Sc2O3 and W. However, further investigation is necessary to determine if the Raju and Maloney type layer is indeed present on top of scandate cathodes

  6. Ba and BaO on W and on Sc 2O 3 coated W

    Science.gov (United States)

    Shih, A.; Yater, J. E.; Hor, C.

    2005-03-01

    Temperature-programmed desorption (TPD) and Auger electron spectroscopy (AES) are used to characterize the surface layers that form under an evaporating flux of a dispenser cathode (which is a Ba and BaO source) on a W substrate and Sc 2O 3-coated W substrate to simulate the surface layer of a conventional dispenser cathode and scandate cathode, respectively. The surface layers were prepared while the substrate was either at 940 °C b (1272 K), a typical operating temperature, or at 1125 °C b (1477 K), a typical activation temperature. Our investigation found that a partial layer of BaO formed on W, similar to the surface layer that forms on a dispenser cathode. Heating to the activation temperature causes the BaO to form a stronger bond with W. For the Sc 2O 3-coated W substrate, heating to the activation temperature is necessary for the inter-diffusion between the Sc 2O 3 and W to occur. BaO layers form a stronger bond to the inter-diffused layer than to pure W. However, the most important finding is that a stable BaO-containing compound forms and continues to accumulate under the impinging flux on the Sc 2O 3 and W covered substrate at 940 °C b. Surface emission models describe successfully all other dispenser cathodes, but fail to explain the emission characteristics of scandate cathodes. Raju and Maloney proposed an alternate model, which requires the presence of a thick layer of semi-conducting material. Our finding suggests that it is possible to form a thick layer from simultaneous presence of BaO, Sc 2O 3 and W. However, further investigation is necessary to determine if the Raju and Maloney type layer is indeed present on top of scandate cathodes.

  7. Country watch: Brazil.

    Science.gov (United States)

    Henriques, H

    1996-01-01

    Prior to the successful, low-cost, multimedia campaigns of GAPA-Bahia (GAPA-BA), a nongovernmental organization (NGO), campaigns to educate people about HIV, AIDS, and sexually transmitted diseases (STDs) were produced by the Brazilian National AIDS/STD Program. Their first campaign, in 1990, focused on fear; their second, in 1995, known as the Braulio campaign, targeted poor men with little education via a conversation between a man and his penis "which had its own will power, opinions about condoms, and a compulsion to have sex." Both campaigns failed. GAPA-BA, in 1990, joined the chorus protesting the campaigns; the NGO believed the messages failed because 1) frightening people drives them away from information and 2) frequent association of AIDS with death is depressing and carries a subliminal message of guilt to those infected. GAPA-BA became the first NGO to produce low-cost, multimedia campaigns nationwide. They focused on "the social responsibility of fighting the disease while emphasizing the value of life and individual sexual freedom." The first campaign, in 1993 and in 1994, used charismatic singers to send short messages encouraging individual responsibility in condom use. The second campaign, in 1995, used "elements from the local culture by affirming the Afro-Bahain heritage expressed in popular music and dance." The light-hearted prevention message during Carnival was "Don't hide from pleasure, avoid AIDS" as a condom was inflated. The 1996 campaign ("Don't rely on luck; use a condom") required five newspaper ads, radio spots, TV ads, 25,000 posters, billboards, and ads on public buses. Five HIV-infected or HIV-affected persons spoke about their lives. This was the first time people living with HIV/AIDS took on educational roles and shed their dangerous and frightening stereotypes. The campaigns are sponsored by donors or remain low in cost because community-based organizations have sensitized other social actors who respond through the community

  8. Fuelwood utilization in Brazil

    International Nuclear Information System (INIS)

    The annual consumption of fuelwood in Brazil is approximately equal to 180 million oil barrels, or 13.3% of all Brazilian primary energy use. Fuelwood consumption in the country is greater than the use of wood for industrial use. Fuelwood taken from existing forest has been a very common activity in Brazil. Forest plantations to support the Brazilian fuelwood consumption have not been important. As fuelwood consumption in the country is expected to increase in the future, it is important to increase the supply of wood by sustainable use of the existing natural forests. Even if they are far from the centers of consumption, these are only available reserves capable of supporting the Brazilian future fuelwood requirements. For this reason it is necessary to use advanced technology to convert the energy of wood efficiently into a form (such as electricity) to carry it to the centers of consumption. In addition, forest plantations would be established in the available areas, mainly for specific uses, as for charcoal production for the pig-iron and steel industries. In all the above plans, at least, the US3/2 billion/year that represents the current Brazilian fuelwood consumption should be returned to rehabilitate the forest growing stock. In addition, it would be used to stimulate the development and use of the most suitable systems of fuelwood conversion, improving the efficiency of energy production. (author)

  9. Waste management in Brazil

    International Nuclear Information System (INIS)

    The waste management policies set up in developed countries have in general been used by other countries with less experience in the nuclear field as the basis for developing waste disposal rules or guidelines according to their particular political, social and economic conditions. The waste management question became a main concern in Brazil during the licensing period of the Angra I nuclear power plant and the other fuel cycle facilities envisaged under the Agreement between Brazil and the Federal Republic of Germany. Before the Angra I licensing period, all final waste products arising from nuclear activities were released into the environment because their radioactive levels were below the standard limits. The Research, Development and Demonstration (RDD) Project initiated by the National Nuclear Energy Commission has the purpose to provide information that may contribute to the formulation of recommendations for a waste disposal policy, as well as to demonstrate the feasibility of the Brazilian waste disposal concept. The paper briefly describes the waste management policy in some countries, their contributions to the studies carried out in the RDD Project, and the recommendations and mechanisms for implementing the waste management proposal, and presents general information concerning the Brazilian repository concept. (author). 9 refs, 1 fig

  10. AMiBA: Broadband Heterodyne CMB Interferometry

    CERN Document Server

    Chen, Ming-Tang; Hwang, Yuh-Jing; Jiang, Homin; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Chiueh, Tzi-Dar; Chu, Tah-Hsiung; Han, Chih-Chiang; Huang, Yau-De; Kesteven, Michael; Kubo, Derek; Martin-Cocher, Pierre; Oshiro, Peter; Raffin, Philippe; Wei, Tashun; Wang, Huei; Wilson, Warwick; Ho, Paul T P; Huang, Chih-Wei; Koch, Patrick; Liao, Yu-Wei; Lin, Kai-Yang; Liu, Guo-Chin; Molnar, Sandor M; Nishioka, Hiroaki; Umetsu, Keiichi; Wang, Fu-Cheng; Wu, Jiun-Huei Proty

    2009-01-01

    The Y. T. Lee Array for Microwave Background (AMiBA) has reported the first science results on the detection of galaxy clusters via the Sunyaev Zel'dovich effect. The science objectives required small reflectors in order to sample large scale structures (20') while interferometry provided modest resolutions (2'). With these constraints, we designed for the best sensitivity by utilizing the maximum possible continuum bandwidth matched to the atmospheric window at 86-102GHz, with dual polarizations. A novel wide-band analog correlator was designed that is easily expandable for more interferometer elements. MMIC technology was used throughout as much as possible in order to miniaturize the components and to enhance mass production. These designs will find application in other upcoming astronomy projects. AMiBA is now in operations since 2006, and we are in the process to expand the array from 7 to 13 elements.

  11. The AMiBA Hexapod Telescope Mount

    Science.gov (United States)

    Koch, Patrick M.; Kesteven, Michael; Nishioka, Hiroaki; Jiang, Homin; Lin, Kai-Yang; Umetsu, Keiichi; Huang, Yau-De; Raffin, Philippe; Chen, Ke-Jung; Ibañez-Romano, Fabiola; Chereau, Guillaume; Huang, Chih-Wei Locutus; Chen, Ming-Tang; Ho, Paul T. P.; Pausch, Konrad; Willmeroth, Klaus; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Han, Chih-Chiang; Kubo, Derek; Li, Chao-Te; Liao, Yu-Wei; Liu, Guo-Chin; Martin-Cocher, Pierre; Oshiro, Peter; Wang, Fu-Cheng; Wei, Ta-Shun; Wu, Jiun-Huei Proty; Birkinshaw, Mark; Chiueh, Tzihong; Lancaster, Katy; Lo, Kwok Yung; Martin, Robert N.; Molnar, Sandor M.; Patt, Ferdinand; Romeo, Bob

    2009-04-01

    The Array for Microwave Background Anisotropy (AMiBA) is the largest hexapod astronomical telescope in current operation. We present a description of this novel hexapod mount with its main mechanical components—the support cone, universal joints, jack screws, and platform—and outline the control system with the pointing model and the operating modes that are supported. The AMiBA hexapod mount performance is verified based on optical pointing tests and platform photogrammetry measurements. The photogrammetry results show that the deformations in the inner part of the platform are less than 120 μm rms. This is negligible for optical pointing corrections, radio alignment, and radio phase errors for the currently operational seven-element compact configuration. The optical pointing error in azimuth and elevation is successively reduced by a series of corrections to about 0farcm 4 rms which meets our goal for the seven-element target specifications.

  12. The AMiBA Hexapod Telescope Mount

    CERN Document Server

    Koch, Patrick M; Nishioka, Hiroaki; Jiang, Homin; Lin, Kai-Yang; Umetsu, Keiichi; Huang, Yau-De; Raffin, Philippe; Chen, Ke-Jung; Ibanez-Romano, Fabiola; Chereau, Guillaume; Chen, Ming-Tang; Ho, Paul T P; Pausch, Konrad; Willmeroth, Klaus; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Han, Chih-Chiang; Kubo, Derek; Li, Chao-Te; Liu, Guo-Chin; Martin-Cocher, Pierre; Oshiro, Peter; Wei, Ta-Shun; Birkinshaw, Mark; Lancaster, Katy; Lo, Kwok Yung; Martin, Robert N; Molnar, Sandor M; Patt, Ferdinand; Romeo, Bob

    2009-01-01

    AMiBA is the largest hexapod astronomical telescope in current operation. We present a description of this novel hexapod mount with its main mechanical components -- the support cone, universal joints, jack screws, and platform -- and outline the control system with the pointing model and the operating modes that are supported. The AMiBA hexapod mount performance is verified based on optical pointing tests and platform photogrammetry measurements. The photogrammetry results show that the deformations in the inner part of the platform are less than 120 micron rms. This is negligible for optical pointing corrections, radio alignment and radio phase errors for the currently operational 7-element compact configuration. The optical pointing error in azimuth and elevation is successively reduced by a series of corrections to about 0.4 arcmin rms which meets our goal for the 7-element target specifications.

  13. Hadron Physics in BaBar

    Energy Technology Data Exchange (ETDEWEB)

    Lafferty, G.D.; /Manchester U.

    2005-08-29

    Some recent results in hadron physics from the BaBar experiment are discussed. In particular, the observation of two new charmed states, the D*{sub sJ}{sup +}(2317) and the D*{sub sJ}{sup +}(2457), is described, and results are presented on the first measurement of the rare decay mode of the B meson, B{sup 0} {pi}{sup 0}{pi}{sup 0}.

  14. AMiBA: Broadband Heterodyne CMB Interferometry

    OpenAIRE

    Chen, Ming-Tang; Li, Chao-Te; Hwang, Yuh-Jing; Jiang, Homin; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Chiueh, Tzi-Dar; Chu, Tah-Hsiung; Han, Chih-Chiang; Huang, Yau-De; Kesteven, Michael; Kubo, Derek; Martin-Cocher, Pierre

    2009-01-01

    The Y. T. Lee Array for Microwave Background (AMiBA) has reported the first science results on the detection of galaxy clusters via the Sunyaev Zel'dovich effect. The science objectives required small reflectors in order to sample large scale structures (20') while interferometry provided modest resolutions (2'). With these constraints, we designed for the best sensitivity by utilizing the maximum possible continuum bandwidth matched to the atmospheric window at 86-102GHz, with dual polarizat...

  15. Tests of AMiBA Data Integrity

    OpenAIRE

    Nishioka, Hiroaki; Wang, Fu-Cheng; Wu, Jiun-Huei Proty; Ho, Paul T. P.; Huang, Chih-Wei Locutus; Koch, Patrick M.; Liao, Yu-Wei; Lin, Kai-Yang; Liu, Guo-Chin; Molnar, Sandor M.; Umetsu, Keiichi; Birkinshaw, Mark; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao

    2008-01-01

    We describe methods used to validate data from the Y.T. Lee Array for Microwave Background Anisotropy (AMiBA), an interferometric array designed to measure the Sunyaev-Zel'dovich effect and the anisotropy of the Cosmic Microwave Background (CMB). We perform several statistical tests on data from pointed galaxy cluster observations taken in 2007 and noise data from long-term blank sky observations and measurements with the feeds covered by the absorbers. We apply power spectrum analysis, cross...

  16. Experimental determination of the partition coefficient for Ba in Neogloboquadrina dutertrei suggests calcification occurs in a Ba-enriched microenvironment

    Science.gov (United States)

    Fehrenbacher, J. S.; Russell, A. D.; Davis, C. V.; Spero, H. J.; Chu, E.

    2015-12-01

    The Ba/Ca ratio in several spinose planktic foraminifer species varies as a function of the Ba/Ca concentration of seawater and is not affected by other parameters such as the seawater salinity, temperature and pH (Honisch et al., 2011). Since seawater Ba concentration is linearly related to Ba in nearshore environments, Ba/Ca ratios in spinose species shows promise as an indicator of past changes in monsoon strength and river runoff (e. g. Weldeab et al. 2007). In contrast, the non-spinose foraminifers often have intrashell variability in Ba/Ca, with Ba/Ca ratios much higher than expected for the range of Ba concentrations observed in the ocean. Furthermore, the Ba/Ca ratio can vary by over a factor of 10 within a single specimen. This suggests either 1) the partition coefficient for Ba in non-spinose species differs from that determined for spinose species, or 2) non-spinose species calcify in a micro-environment that is enriched in Ba. We conducted experiments on live specimens to determine the partition coefficient for Ba in the non-spinose foraminifer N. dutertrei. Specimens were collected via plankton net from the Southern California Bight and cultured at the Wrigley Marine Science Center, Santa Catalina Island during the summer of 2013-2015. We use isotopically labeled seawater (87Sr) to identify discrete portions of calcite that grew in culture. We use laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for trace element analyses and to identify ocean grown vs. culture grown calcite. We show that the partition coefficient is similar to the spinose species: N. dutertrei incorporates Ba as a function of seawater chemistry. We conclude from these observations that N. dutertrei forms its calcite from fluids enriched in Ba, and hypothesize that this process occurs via attachment to organic-rich particles such as marine snow.

  17. New Spectroscopy at BaBar

    Energy Technology Data Exchange (ETDEWEB)

    Mazzoni, M.A.; /INFN, Rome

    2007-04-18

    The Babar experiment at the SLAC B factory has accumulated a high luminosity that offers the possibility of systematic studies of quarkonium spectroscopy and of investigating rare new phenomena. Recent results in this field are presented. In recent times spectroscopy has become exciting again, after the discovery of new states that are not easily explained by conventional models. States such as the X(3872) and the Y(4260) could be new excited charmonium states, but require precise measurements for positive identification. The BaBar experiment [1] is installed at the asymmetric storage ring PEP-II. 90% of the data accumulated by BaBar are taken at the Y(4S) (10.58 GeV) and 10% just below (10.54 GeV). The BaBar detector includes a 5-layer, double-sided silicon vertex tracker and a 40-layer drift chamber in a 1.5 T solenoidal magnetic field, which detect charged particles and measures their momenta and ionization energy losses. Photons, electrons, and neutral hadrons are detected with a CsI(Tl)-crystal electromagnetic calorimeter. An internally reflecting ring-imaging Cherenkov is also used for particle id. Penetrating muon and neutral hadrons are identified by an array of resistive-plate chambers embedded in the steel of the flux return. The detector allows good track and vertex resolution, good particle id and good photon detection so it is especially suited for spectroscopy studies.

  18. The BaBar Data Acquisition System

    CERN Document Server

    Scott, I; Grosso, P; Huffer, M E; O'Grady, C; Russell, J J

    1999-01-01

    The BaBar experiment at the Stanford Linear Accelerator Center is designed to perform a search for CP violation by ana-lyzing the decays of a very large sample of B and B(Bar) mesons produced at the high luminosity PEP-II accelerator. The data acquisition system must cope with a sustained high event rate, while supporting real time feature extraction and data compression with minimal dead time. The BaBar data acquisition system is based around a common VME interface to the electronics read-out of the separate detec-tor subsystems. Data from the front end electronics is read into commercial VME processors via a custom "Personality Card" and PCI interface. The commercial CPUs run the Tornado operating system to provide a platform for detector subsystem code to perform the necessary data processing. The data is read out via a non-blocking network switch to a farm of commercial UNIX processors. The current implementation of the BaBar data acquisition sys-tem has been shown to sustain a Level 1 trigger rate of 1.3...

  19. Labelling and Packaging in Brazil

    OpenAIRE

    Cavalcante, Tania M; World Health Organization

    2003-01-01

    Introduction Brazil is the largest country in South America, with an area of 8 547 403.5 square kilometres and a population of 169 799 170 (IBGE, 2000). Its geopolitical structure com-prises 26 states and one Federal District, the capital of Brazil, Brasilia. Each state is divided into municipalities, of which there are a total of 5 507. The primary causes of death in Brazil are cardiovascular diseases and cancer and their major risk factor is tobacco use. Lung cancer is the...

  20. Trace Metals Concentrations in Mangrove Sediments of Sepetiba Bay (Rio de Janeiro, Brazil: Microwave Assisted Digestion with Nitric Acid and Aqua Regia [Concentrações de Metais Traço em Sedimentos de Manguezais da Baía de Sepetiba (Rio de Janeiro, Brasil: Digestão Assistida por Micro-ondas com Ácido Nítrico e Água Régia

    Directory of Open Access Journals (Sweden)

    Paulo S. A. de Souza

    2012-07-01

    Full Text Available Mangrove sediments have a great capacity to accumulate trace metals that can be remobilized thuscontaminating the water and biota. Concentrations of trace metals (Cu, Ni, Pb and Zn in mangrove sedimentsamples from Sepetiba Bay (Brazil determined using two different protocols were compared, in order to givesupport for the establishment of a future legislation of environmental assessment of sediment quality in Brazil.Surface sediment samples were collected in three mangrove forests of Sepetiba Bay and were analyzed todetermine pH, Eh, salinity, and the percentages of sand, silt, clay, total organic carbon (TOC, total N and total P. Concentrations of Cu, Ni, Pb and Zn were determined using two microwave acid digestion protocols, with two different agents: nitric acid (HNO3 and aqua regia (HCl/HNO3. Results showed that the choice of the digestion method to use in the evaluation of environmental contamination and monitoring of trace metals in sediments should be made carefully, taking into account their physical and chemical characteristics in order to avoid misclassification of environmental impacts.

  1. Growth and characterization of acentric BaHf(BO3)2 and BaZr(BO3)2

    International Nuclear Information System (INIS)

    Growth, single crystal X-ray diffraction, polarized Raman and infrared (IR) studies of BaHf(BO3)2 are presented. Raman and IR spectra of polycrystalline BaZr(BO3)2 are also reported to facilitate assignment of modes. BaHf(BO3)2 borate crystallizes in trigonal system, space group R3c, with lattice parameters: a=5.1540(4) Å, c=33.901(3) Å. It accommodates dolomite-like structure doubled in the c direction, which is built of alternating layers of HfO6 octahedra and BaO6 distorted trigonal prisms that are connected through borate groups. The obtained structural as well as spectroscopic data show that BaHf(BO3)2 is isostructural with BaZr(BO3)2 and the deviations from centrosymmetry is small. - Graphical abstract: Arrangement of BO3 groups in BaHf(BO3)2 along the c direction in one unit cell. Dark and light blue denote different borate groups. - Highlights: • BaHf(BO3)2 single crystals were grown. • X-ray diffraction showed that this borate crystallizes in the acentric R3c structure. • Raman and IR spectra were measured for BaHf(BO3)2 and BaZr(BO3)2, respectively. • Assignment of modes is proposed

  2. Space activities in Brazil

    Science.gov (United States)

    Carvalho, H.; Kono, J.; Quintino, M.; Perondi, L.

    Brazilian space activities develop around three main programs, namely, the China-Brazil Earth Resources Satellite (CBERS) , the Applications Satellite program, comprising the Multi-Mission Platform and associated remote sensing payloads (radar and optical), and the Scientific Satellites program. Increasing national industry participation and acquiring new technology are strategic goals established for all programs. CBERS program is the result of successful long term cooperation between China and Brazil for the development of remote sensing satellites. Initially comprising two satellites, launched in 1999 and 2003, and now extended to four, this cooperation fulfills the needs of both countries in earth imagery. CBERS satellites are designed for global coverage and include cameras for high spatial resolution and wide field of view, in the visible, near infrared spectrum, an infrared multi-spectral scanner, and a Transponder for the Brazilian Environmental Data Collection System to gather data on the environment. They are unique systems due to the use of onboard cameras which combine features that are specially designed to resolve the broad range of space and time scales involved in our ecosystem. Applications satellites, mainly devoted to optical and radar remote sensing, are being developed in the frame of international cooperation agreements, and will be based on the use of a recurrent Multi-Mission Platform (MMP), currently under development. The MMP will be 3-axes stabilized and will have a fine pointing capability, in several pointing modes, such as Earth, Inertial or Sun pointing. Missions will be focused on natural resources observation and monitoring.. The Program for Scientific Satellites is based on low-cost micro-satellites and aims at providing frequent flight opportunities for scientific research from space, whilst serving as a technological development platform, involving Research Institutes, Universities and National Industry. Current projects are FBM

  3. Pediatric lymphomas in Brazil

    Directory of Open Access Journals (Sweden)

    Gabriela Gualco

    2010-01-01

    Full Text Available OBJECTIVE: This study provides the clinical pathological characteristics of 1301 cases of pediatric/adolescent lymphomas in patients from different geographic regions of Brazil. METHODS: A retrospective analyses of diagnosed pediatric lymphoma cases in a 10-year period was performed. We believe that it represents the largest series of pediatric lymphomas presented from Brazil. RESULTS: Non-Hodgkin lymphomas represented 68% of the cases, including those of precursor (36% and mature (64% cell origin. Mature cell lymphomas comprised 81% of the B-cell phenotype and 19% of the T-cell phenotype. Hodgkin lymphomas represented 32% of all cases, including 87% of the classical type and 13% of nodular lymphocyte predominant type. The geographic distribution showed 38.4% of the cases in the Southeast region, 28.7% in the Northeast, 16.1% in the South, 8.8% in the North, and 8% in the Central-west region. The distribution by age groups was 15-18 years old, 33%; 11-14 years old, 26%; 6-10 years old, 24%; and 6 years old or younger, 17%. Among mature B-cell lymphomas, most of the cases were Burkitt lymphomas (65%, followed by diffuse large B-cell lymphomas (24%. In the mature T-cell group, anaplastic large cell lymphoma, ALK-positive was the most prevalent (57%, followed by peripheral T-cell lymphoma, then not otherwise specified (25%. In the group of classic Hodgkin lymphomas, the main histological subtype was nodular sclerosis (76%. Nodular lymphocyte predominance occurred more frequently than in other series. CONCLUSION: Some of the results found in this study may reflect the heterogeneous socioeconomical status and environmental factors of the Brazilian population in different regions.

  4. Familial hypercholesterolemia in Brazil.

    Science.gov (United States)

    Dos Santos, J E; Zago, M A

    2003-11-01

    The Brazilian population has heterogeneous ethnic origins and is unevenly distributed in a country of continental dimensions. In addition to the Portuguese colonists until the end of the World War II Brazil received almost 5 million immigrants who settled mainly in the south and southeast. This features of the Brazilian population have two important consequences for the inherited diseases that are associated with an ethnic background: their frequencies are different in various regions of the country reflecting a variety of ethnic origins and variable degrees of admixtures. There was no report about the molecular basis of hypercholesterolemia in Brazil until our report in 1996 that the Lebanese allele is the most common cause of the disease in our country: 10 out of the 30 families were of Arab origin, and the Lebanese allele was detected in 9 of the 10 unrelated families of Arab origin. In addition, the abnormal gene is associated with the same haplotype at the LDL-R locus in all but one family, suggesting single origin for this mutation. Recently we described seven mutations in exons 4, 7, 12 and 14 and a new mutation in exon 15. In another region of our state, eight mutation already described and seven new mutations were described and interesting no common mutations were find. We can conclude that the complex history and structure of the Brazilian population, which was formed by the contribution of a large number of ethnic components that are in a state of increasing miscegenation, is reflected in the frequency and regional distribution of the more common hereditary diseases. PMID:14615271

  5. Zika: Why Brazil, Why Now

    Science.gov (United States)

    ... page: https://medlineplus.gov/news/fullstory_160251.html Zika: Why Brazil, Why Now Several factors -- including economics, ... been the country hit hardest by the ongoing Zika virus epidemic and its potential for birth defects. ...

  6. High spin structure in 130,131Ba

    International Nuclear Information System (INIS)

    High spin states of 130,131Ba have been investigated via fusion evaporation reactions 122Sn(13C,4n)131Ba and 122Sn(13C, 5n)130Ba at Ebeam=65 MeV. The level schemes of 130,131Ba have been extended by placing several new γ transitions. A few interband transitions connecting two negative-parity bands, which are the experimental fingerprints of signature partners, have been established in 130Ba. Spin and parity of a side band have been assigned in 131Ba and this dipole band is proposed to have a three-quasiparticle configuration, νh11/2 x πh11/2 x πg7/2. The observed band structures and nuclear shape evolution as a function of the angular momentum have been discussed in the light of Total-Routhian-Surface calculations. (orig.)

  7. A new species of Ibitermes (Isoptera, Termitidae) from the Atlantic forest, northeastern Brazil

    OpenAIRE

    Alexandre Vasconcellos

    2002-01-01

    The sterile castes of Ibitermes inflatus sp. nov. from Rio Tinto, State of Paraíba, Brazil are described and illustrated. This is the first record of a species of Ibitermes from the Brazilian northeast and from the Atlantic Forest biome. The absence of ridges in the molar plate of the left mandible and the presence of granules of sand and silt mixed with organic matter in advanced stage of decomposition in the digestive tube of workers suggest that the species is a typical humus feeding termi...

  8. Platydoras brachylecis, a new species of thorny catfish (Siluriformes: Doradidae) from northeastern Brazil

    OpenAIRE

    Nivaldo M. Piorski; Julio C. Garavello; Mariangeles Arce H.; SABAJ, Mark H.

    2008-01-01

    Platydoras brachylecis, new species, is described from coastal drainages of northeastern Brazil (Pindaré to Parnaíba rivers), and diagnosed from congeners by the unique combination of: pale yellow to white stripe beginning above orbits, continuing midlaterally on body and onto middle rays of caudal fin; skin in axil of each midlateral thorn without concentration of pigment forming small dark spot, midlateral scutes shallow (depth of 10th scute 8.8-11.9% of SL), and midlateral scutes on caudal...

  9. Diversity of myxomycetes in an environmentally protected area of Atlantic Forest in northeastern Brazil

    OpenAIRE

    Antônia Aurelice Aurélio Costa; Andrea Carla Caldas Bezerra; Vitor Xavier de Lima; Laise de Holanda Cavalcanti

    2014-01-01

    The present study was carried out on three trails, each presenting a different degree of disturbance, within the Pau-Ferro Forest Environmentally Protected Area, a 600 ha area of highland forest located in the municipality of Areia (06°58'12"S; 35°42'15"W; elevation, 400-600 m), in the state of Paraíba, Brazil. In 2005, we analyzed the species richness, abundance, constancy and phenology of myxomycetes over seven consecutive months (rainy and dry seasons) in five types of microhabitats: dead ...

  10. Pedotransfer functions to estimate water retention parameters of soils in northeastern Brazil

    OpenAIRE

    Alexandre Hugo Cezar Barros; Quirijn de Jong van Lier; Aline de Holanda Nunes Maia; Fábio Vale Scarpare

    2013-01-01

    Pedotransfer functions (PTF) were developed to estimate the parameters (α, n, θr and θs) of the van Genuchten model (1980) to describe soil water retention curves. The data came from various sources, mainly from studies conducted by universities in Northeast Brazil, by the Brazilian Agricultural Research Corporation (Embrapa) and by a corporation for the development of the São Francisco and Parnaíba river basins (Codevasf), totaling 786 retention curves, which were divided into two data sets:...

  11. The Espinharas uranium occurrence, Brazil

    International Nuclear Information System (INIS)

    Nuclam has been exploring for uranium in Brazil since 1976. During this period one uranium ore body has been found in the vicinity of Espinharas, a village in Paraiba State, northeast Brazil. According to present knowledge, the mineralized ore body is caused by metasomatic action. The history of discovery and the exploration work until the end of 1979 is given, showing the conceptual change with increasing knowledge of the mineralized zone. (author)

  12. Automobile Pollution Control in Brazil

    OpenAIRE

    Claudio Ferraz; Ronaldo Seroa da Motta

    2015-01-01

    Air pollution concentrations have been rapidly increasing in the major urban areas of Brazil caused mainly by the increasing use of vehicles. In the presence of this negative externality, environmental regulation is required. Car emission control policies in Brazil have relied basically on mandatory emission standards and subsidies for specific cleaner technology resulting in substantial decrease of car emission rates. Nevertheless, car sale taxes, differentiated by vehicles’ size and fuel, h...

  13. Rates of pulmonary infection by pentastomids in lizards species from a restinga habitat in northeastern Brazil.

    Science.gov (United States)

    Almeida, W O; Santana, G G; Vieira, W L S; Wanderley, I C; Ribeiro, S C

    2009-02-01

    Pulmonary parasitism by pentastomids was examined in two lizard species inhabiting an area of restinga vegetation (coastal sand dunes) situated in the municipality of Mataraca (6 degrees 29' S and 34 degrees 56' W), on the extreme northern coast of Paraíba State, Brazil. A total of 123 lizards were collected, being 75 specimens of Micrablepharus maximiliani (Gymnophtalmidae) and 48 specimens of Cnemidophorus ocellifer (Teiidae). Only a single species of Pentastomida (Raillietiella mottae) was found parasitizing three females M. maximiliani, with a prevalence of 4% and an average infection intensity of 2.3 +/- 1.3 (range 1-5). The infection rate by pentastomids encountered in the present study was similar to that seen with other species of restinga lizards. Raillietiella mottae is a generalist parasite species that is probably transmitted by common and widely distributed insects making up part of the diet of many insectivorous lizard species from northeastern Brazil. PMID:19347165

  14. AT THE MARGINS OF ROADS AND JURUÁ’S HISTORY: AN ESSAY ON MBYÁ OCCUPATIONS IN THE GUAÍBA HYDROGRAPHIC AREA (STATE OF RIO GRANDE DO SUL

    Directory of Open Access Journals (Sweden)

    Maria Paula Prates

    2012-12-01

    Full Text Available In this article we seek to systematize historical and ethnographic informations about mbyá presence in the Guaíba hydrographic area (Rio Grande do Sul/Brazil, taking into account the relations between indians and non-indians through the process of territorial configuration of Bacia Platina. This discussion is based on fieldwork, literature and primary sources about three contemporary mbyá occupations -- Petim, Passo Grande and Arroio do Conde.

  15. Mapping RFLP Loci in Maize Using B-a Translocations

    OpenAIRE

    Weber, D.; Helentjaris, T

    1989-01-01

    Plants hypoploid for specific segments of each of the maize (Zea mays L.) chromosomes were generated using 24 different B-A translocations. Plants carrying each of the B-A translocations were crossed as male parents to inbreds, and sibling progeny hypoploid or not hypoploid for specific chromosomal segments were recovered. Genomic DNAs from the parents, hypoploid progeny, and nonhypoploid (euploid or hyperploid) progeny for each of these B-A translocations were digested with restriction enzym...

  16. Ba2TeO: A new layered oxytelluride

    International Nuclear Information System (INIS)

    Single crystals of the new semiconducting oxytelluride phase, Ba2TeO, were synthesized from barium oxide powder and elemental tellurium in a molten barium metal flux. Ba2TeO crystallizes in tetragonal symmetry with space group P4/nmm (#129), a=5.0337(1) Å, c=9.9437(4) Å, Z=2. The crystals were characterized by single crystal x-ray diffraction, heat capacity and optical measurements. The optical measurements along with electronic band structure calculations indicate semiconductor behavior with a band gap of 2.93 eV. Resistivity measurements show that Ba2TeO is highly insulating. - Graphical abstract: Starting from a simple stacking of rocksalt layers, the final structure of Ba2TeO can be obtained by accommodation of structural strain via atom displacements. Density of states calculations and optical absorbance measurements show that Ba2TeO has a band gap of 2.93 eV, indicative of semiconductor behavior. - Highlights: • Single crystal synthesis of a new layered oxytelluride, Ba2TeO. • The structure features inverse PbO-type BaO layers and NaCl-type BaTe layers. • Optical absorbance show Ba2TeO to be a semiconductor with a 2.93 eV gap. • Density of states indicate a small hybridization between Te 5p and Ba 5d states. • The BaTe (BaO) layers dominate the heat capacity at low (high) temperatures

  17. 120-K Tl-Ca-Ba-Cu-O superconducting system

    International Nuclear Information System (INIS)

    The authors have discovered a reproducible and stable bulk superconductivity in the Tl-Ca-Ba-Cu-O system. The Tl-Ca-Ba-Cu-O superconductors can be easily prepared, and have highest Tc (125 K) and high critical current. Some Tl-Ca-Ba-Cu-O samples show an unusual phenomenon of coexistence of diamagnetism and ferromagnetic like behavior. The Tl-based system is rich in new superconducting structures, and has provided insight into mechanisms of high Tc oxide superconductivity

  18. DongBa Dance--Mixture of cultures

    Institute of Scientific and Technical Information of China (English)

    赵春娟

    2014-01-01

    DongBa Dance is a kind of ancient dance that created by Naxi people living in the Southwest of China and recorded by their own hieroglyph.During the development, it adopted parts of Tibetan, Indian and Egyptian cultures.So, as the mixture of cultures, DongBa Dance is marching into the world and causing a great attention.The ancient DongBa Dance will get a new life in the world.

  19. DongBa Dance——Mixture of cultures

    Institute of Scientific and Technical Information of China (English)

    赵春娟

    2014-01-01

    Dong Ba Dance is a kind of ancient dance that created by Naxi people living in the Southwest of China and recorded by their own hieroglyph.During the development, it adopted parts of Tibetan, Indian and Egyptian cultures.So, as the mixture of cultures, Dong Ba Dance is marching into the world and causing a great attention.The ancient Dong Ba Dance will get a new life in the world.

  20. A small volume thermodynamic system for B/A measurement.

    Science.gov (United States)

    Zhang, J; Dunn, F

    1991-01-01

    A thermodynamic method capable of determining the B/A value of 4-ml sample volumes is described. The method involves a procedure in which the static pressure of the sample is altered in a short period of time, to approximate an adiabatic process, during which the ultrasonic velocity is measured. The velocity change so determined is used to calculate the B/A value. The B/A measurement error is less than 0.7%. PMID:1825834

  1. 120-K Tl-Ca-Ba-Cu-O bulk superconductors

    International Nuclear Information System (INIS)

    The authors have discovered reproducible and stable bulk superconductivity in the Tl-Ca-Ba-Cu-O system above 130 K, with zero resistance above 120 K. Magnetic and electronic transport properties including thermoelectric power of the new superconductors are presented. The Tl-Ca- Ba-Cu-O system contains the 125-K 2223 (Tl:Ca:Ba:Cu) phase and the 105-K 2122 phase, while the Ca-free Tl-Ba-Cu-O system consists of the 80-K 2021 phase, suggesting that the addition of each Cu and Ca layer increases the transition temperature by about 20 K

  2. Synthesis and characterization of Ba/MCM-41

    OpenAIRE

    Kaya, Emine; OKTAR, Nuray; KARAKAŞ, Gürkan

    2010-01-01

    Mesoporous Ba/MCM-41 type materials (Ba/MCM-41) with high Ba/Si molar ratios between 0.025 and 0.1 were synthesized by direct hydrothermal synthesis. The samples were characterized by XRD, nitrogen adsorption, TGA-DTA, FTIR, SEM-EDS, and TEM techniques. BET surface areas of samples with various Ba loadings were found between 722 and 931 m2/g with 28 Å average pore size, which is consistent with the pore size of 30 Å for pure MCM-41 samples synthesized by the same procedure. The crys...

  3. Hysteretic electrical transport in BaTiO3/Ba1−xSrxTiO3/Ge heterostructures

    International Nuclear Information System (INIS)

    We present electrical transport measurements of heterostructures comprised of BaTiO3 and Ba1−xSrxTiO3 epitaxially grown on Ge. Sr alloying imparts compressive strain to the BaTiO3, which enables the thermal expansion mismatch between BaTiO3 and Ge to be overcome to achieve c-axis oriented growth. The conduction bands of BaTiO3 and Ba1−xSrxTiO3 are nearly aligned with the conduction band of Ge, which facilitates electron transport. Electrical transport measurements through the dielectric stack exhibit rectifying behavior and hysteresis, where the latter is consistent with ferroelectric switching

  4. Growth and characterization of acentric BaHf(BO3)2 and BaZr(BO3)2

    Science.gov (United States)

    Mączka, Mirosław; Szymborska-Małek, Katarzyna; Gągor, Anna; Majchrowski, Andrzej

    2015-05-01

    Growth, single crystal X-ray diffraction, polarized Raman and infrared (IR) studies of BaHf(BO3)2 are presented. Raman and IR spectra of polycrystalline BaZr(BO3)2 are also reported to facilitate assignment of modes. BaHf(BO3)2 borate crystallizes in trigonal system, space group R3c, with lattice parameters: a=5.1540(4) Å, c=33.901(3) Å. It accommodates dolomite-like structure doubled in the c direction, which is built of alternating layers of HfO6 octahedra and BaO6 distorted trigonal prisms that are connected through borate groups. The obtained structural as well as spectroscopic data show that BaHf(BO3)2 is isostructural with BaZr(BO3)2 and the deviations from centrosymmetry is small.

  5. Co2FeAl based magnetic tunnel junctions with BaO and MgO/BaO barriers

    Directory of Open Access Journals (Sweden)

    J. Rogge

    2015-07-01

    Full Text Available We succeed to integrate BaO as a tunneling barrier into Co2FeAl based magnetic tunnel junctions (MTJs. By means of Auger electron spectroscopy it could be proven that the applied annealing temperatures during BaO deposition and afterwards do not cause any diffusion of Ba neither into the lower Heusler compound lead nor into the upper Fe counter electrode. Nevertheless, a negative tunnel magnetoresistance (TMR ratio of -10% is found for Co2FeAl (24 nm / BaO (5 nm / Fe (7 nm MTJs, which can be attributed to the preparation procedure and can be explained by the formation of Co- and Fe-oxides at the interfaces between the Heusler and the crystalline BaO barrier by comparing with theory. Although an amorphous structure of the BaO barrier seems to be confirmed by high-resolution transmission electron microscopy (TEM, it cannot entirely be ruled out that this is an artifact of TEM sample preparation due to the sensitivity of BaO to moisture. By replacing the BaO tunneling barrier with an MgO/BaO double layer barrier, the electric stability could effectively be increased by a factor of five. The resulting TMR effect is found to be about +20% at room temperature, although a fully antiparallel state has not been realized.

  6. Co2FeAl based magnetic tunnel junctions with BaO and MgO/BaO barriers

    Science.gov (United States)

    Rogge, J.; Hetaba, W.; Schmalhorst, J.; Bouchikhaoui, H.; Stender, P.; Baither, D.; Schmitz, G.; Hütten, A.

    2015-07-01

    We succeed to integrate BaO as a tunneling barrier into Co2FeAl based magnetic tunnel junctions (MTJs). By means of Auger electron spectroscopy it could be proven that the applied annealing temperatures during BaO deposition and afterwards do not cause any diffusion of Ba neither into the lower Heusler compound lead nor into the upper Fe counter electrode. Nevertheless, a negative tunnel magnetoresistance (TMR) ratio of -10% is found for Co2FeAl (24 nm) / BaO (5 nm) / Fe (7 nm) MTJs, which can be attributed to the preparation procedure and can be explained by the formation of Co- and Fe-oxides at the interfaces between the Heusler and the crystalline BaO barrier by comparing with theory. Although an amorphous structure of the BaO barrier seems to be confirmed by high-resolution transmission electron microscopy (TEM), it cannot entirely be ruled out that this is an artifact of TEM sample preparation due to the sensitivity of BaO to moisture. By replacing the BaO tunneling barrier with an MgO/BaO double layer barrier, the electric stability could effectively be increased by a factor of five. The resulting TMR effect is found to be about +20% at room temperature, although a fully antiparallel state has not been realized.

  7. Effect of local environment on crossluminescence kinetics in SrF{sub 2}:Ba and CaF{sub 2}:Ba solid solutions

    Energy Technology Data Exchange (ETDEWEB)

    Terekhin, M.A. [P.N. Lebedev Physical Institute, Leninskij Prospekt 53, 119991 Moscow (Russian Federation); Makhov, V.N., E-mail: makhov@sci.lebedev.ru [P.N. Lebedev Physical Institute, Leninskij Prospekt 53, 119991 Moscow (Russian Federation); Lebedev, A.I.; Sluchinskaya, I.A. [Lomonosov Moscow State University, Moscow 119991 (Russian Federation)

    2015-10-15

    Spectral and kinetic properties of extrinsic crossluminescence (CL) in SrF{sub 2}:Ba (1%) and CaF{sub 2}:Ba (1%) are compared with those of intrinsic CL in BaF{sub 2} and are analyzed taking into account EXAFS data obtained at the Ba L{sub III} edge and results of first-principles calculations. The CL decay time was revealed to be longer in SrF{sub 2}:Ba and CaF{sub 2}:Ba compared to BaF{sub 2}. This fact contradicts the expected acceleration of luminescence decay which could result from an increased overlap of wave functions in solid solutions due to shortening of the Ba-F distance obtained in both EXAFS measurements and first-principles calculations. This discrepancy is explained by the effect of migration and subsequent non-radiative decay of the Ba (5p) core holes in BaF{sub 2} and by decreasing of the probability of optical transitions between Ba (5p) states and the valence band in SrF{sub 2}:Ba and CaF{sub 2}:Ba predicted by first-principles calculations. - Highlights: • The crossluminescence kinetics in SrF{sub 2}:Ba and CaF{sub 2}:Ba is slower than in BaF{sub 2}. • Ba{sup 2+} ions substitute for host Ca{sup 2+}(Sr{sup 2+}) ions in the on-center positions. • The nearest Ba-F distances in SrF{sub 2}:Ba and CaF{sub 2}:Ba are shorter than in BaF{sub 2}. • EXAFS data and first-principles calculations of the local structure agree well. • First-principles calculations explain slower luminescence decay in solid solutions.

  8. Country watch. Brazil.

    Science.gov (United States)

    Turra, M D

    1994-01-01

    Persons who are infected with human immunodeficiency virus (HIV) or who suffer from acquired immunodeficiency syndrome (AIDS) often have their civil rights violated in Brazil. To remedy this, the Candido Mendes College in Rio de Janeiro introduced a voluntary course, "AIDS - Legal Approaches", into its law curriculum. Incentive was provided by the college's Model Law Office (MLO), where students learn to defend the rights of people in need. Class size is about 25; law professors use recent magazine and newspaper articles, and documentation on lawsuits concerning persons with HIV to teach the class. Course topics include relevant civil law (suits against blood banks), contract law (suits against private health insurance companies which refuse to cover treatment expenses related to HIV or AIDS), family law, inheritance law, labor law (unjust dismissal of persons with HIV), criminal law (intentional transmission of AIDS), violations of basic human rights, and comparative jurisprudence and constitutional law (a comparison of Brazilian law in this area to the laws of other countries). Students, during their field practice periods at the MLO, provide legal assistance to persons with HIV. Approximately 150 cases have been handled, often with positive outcomes, to date. Clients hear about the program via television, radio, and newspapers. Materials and information about lawsuits handled by the MLO are available to other colleges and universities with the hope of stimulating the formation of similar programs elsewhere. PMID:12288109

  9. Ethanol fuels in Brazil

    International Nuclear Information System (INIS)

    The largest alternative transportation fuels program in the world today is Brazil's Proalcool Program. About 6.0 million metric tons of oil equivalent (MTOE) of ethanol, derived mainly from sugar cane, were consumed as transportation fuels in 1991 (equivalent to 127,000 barrels of crude oil per day). Total primary energy consumed by the Brazilian economy in 1991 was 184.1 million MTOE, and approximately 4.3 million vehicles -- about one third of the total vehicle fleet or about 40 percent of the total car population -- run on hydrous or open-quotes neatclose quotes ethanol at the azeotropic composition (96 percent ethanol, 4 percent water, by volume). Additional transportation fuels available in the country are diesel and gasoline, the latter of which is defined by three grades. Gasoline A (regular, leaded gas)d has virtually been replaced by gasoline C, a blend of gasoline and up to 22 percent anhydrous ethanol by volume, and gasoline B (premium gasoline) has been discontinued as a result of neat ethanol market penetration

  10. Argentina and Brazil

    International Nuclear Information System (INIS)

    This paper reports that security is defined in different ways by many international actors. To some, security is tied to the definition of an external threat to borders, as in the case of the NATO countries. To other, security is related to development, as in the case of most Third World countries. but notwithstanding different definitions, all countries recognize that the essence of security is the survival of the nation-state itself. The nuclear programs of Argentina and Brazil are among the oldest, most sophisticated and advanced nuclear programs anywhere in the Third World. The programs have never been explained on the basis of threat perception, and in this regard perhaps they constitute the most atypical form of nuclear proliferation known to date. Not surprisingly, any attempt to explain the rationale for the Brazilian and Argentine nuclear programs based on common issues of threat =merely confuses the issue. Thus, nationalism, the search for national identity and pride, the need to express self-sufficiency and the desire to keep options open in an insecure and evolving world order must all be analyzed to comprehend the likelihood of future types of nuclear proliferation. Meanwhile, the study of the contemporary era of Argentine-Brazilian nuclear rapprochement may provide new insights into the complex reasoning behind the decision of countries to go nuclear

  11. Policing violence in Brazil.

    Science.gov (United States)

    Sena, E

    1999-03-01

    This article is an excerpted summary of a speech on female police and domestic violence. The speech was given by a woman affiliated with the Association of Women Workers at an Oxfam workshop in northern Brazil. This organization successfully lobbied for female police, which resulted in more reports of domestic violence, especially rape. The organization is active in 13 counties. Female police are trained and usually given respect by police chiefs. In one city, in 1997, the appointment of female police resulted in registered reports of 387 cases of violence and hospital reports of 503 cases, of which 14% were child rape. During January-April 1998, there were 126 registered cases and 168 hospital cases. Policewomen formed a partnership over the past 2 years with the Human Rights Group and other popular political groups to train female police about laws. The compulsory course focused on four areas: legal concepts, penalties, and procedures on registration of complaints; the Brazilian Penal Code; civil law; and world judicial bureaucracies. Training includes a 1 month internship with the program's lawyer. Over 20 women have completed the course to date. Training in some cases resulted in greater expertise among the female police than their Police Chiefs. Female police have experienced harassment by local authorities. PMID:12295035

  12. First occurrence of the crab Calappa nitida Holthuis, 1958 (Brachyura, Calappidae, Calappinae) on the coast of the state of Piauí, Brazil

    OpenAIRE

    Lissandra Corrêa Fernandes-Góes; João Marcos de Góes

    2007-01-01

    The present study reports a female of Calappa nitida found at a water-pump station on a shrimp farm, in a mangrove located in Cajueiro da Praia, state of Piauí, within the Parnaíba River Delta Environmental Preservation Area. Although C. nitida occurs in northern and northeastern Brazil, this first record from Piauí fills one of the gaps in its known range.

  13. First occurrence of the crab Calappa nitida Holthuis, 1958 (Brachyura, Calappidae, Calappinae on the coast of the state of Piauí, Brazil

    Directory of Open Access Journals (Sweden)

    Lissandra Corrêa Fernandes-Góes

    2007-03-01

    Full Text Available The present study reports a female of Calappa nitida found at a water-pump station on a shrimp farm, in a mangrove located in Cajueiro da Praia, state of Piauí, within the Parnaíba River Delta Environmental Preservation Area. Although C. nitida occurs in northern and northeastern Brazil, this first record from Piauí fills one of the gaps in its known range.

  14. Structural and thermodynamic characterization of the perovskite-related BA1+yUO3+x and (BA,SR)1+yUO3+x phases

    International Nuclear Information System (INIS)

    The perovskite-type BaUO3 structure has been investigated by X-ray and neutron diffraction. The Ba/U ratio, the (Ba, Sr)/U ratio, and the oxygen stoichiometry in Ba1+yUO3+x were varied, and the integral enthalpies of formation determined by solution calorimetry. In addition, equilibrium oxygen partial pressures were measured using a reversible EMF cell. The chemical defect mechanism is discussed, and it is shown that a continuous series BaUO3-Ba1+yUO3+x-Ba3UO6 exist in which uranium vacancies are gradually filled up with barium ions, whereas uranium is oxidized via the pentavalent to the hexavalent state in Ba3UO6(=Ba2(Ba, U)O6). (orig.)

  15. Essays on Municipal Public Finance in Brazil

    OpenAIRE

    Gardner, Rachel Elizabeth

    2013-01-01

    This dissertation studies local public finance in Brazil, with a focus on how federal and state government policies affect local spending and revenue generation. In Chapter I, I provide a descriptive analysis of local public finance in Brazil, with a focus on local revenue generation. In addition to describing the system of public finance in Brazil from a municipal perspective, I discuss the major challenges facing local governments in Brazil and in other low and middle income countries and ...

  16. Brazil, China, US: a triangular relation?

    Directory of Open Access Journals (Sweden)

    José-Augusto Guilhon-Albuquerque

    2014-01-01

    Full Text Available This article is divided in three sections. The first one explores the so-called "strategic partnership" between Brazil and China. In the second section we shall examine how US-China relations in the global system could affect both Brazil-US, and Brazil-China bilateral relations. A final section presents some recommendations for Brazil strategic orientations regarding the current systemic transition in the allotment of global power.

  17. The Evolution of Reforestation in Brazil

    OpenAIRE

    Bacha, Carlos

    2003-01-01

    This paper analyzes the evolution of reforestation in Brazil and makes an evaluation of federal government policies used to stimulate that activity. Despite the huge increase of reforestation areas in Brazil since the 1970s, what put up Brazil as the sixth large country with reforested areas, a scarcity of roundwood from reforested areas is happing in that country during the first decade of the 21st century. Federal government implemented three programs to foster the reforestation in Brazil d...

  18. Contribuição ao estudo da circulação e do transporte de volume da corrente do Brasil entre o Cabo de São Tomé e a Baía de Guanabara Contribution to the studies of transport and circulation of the Brazil current in the are a between Cabo de São Tomé and Guanabara Bay

    Directory of Open Access Journals (Sweden)

    Sérgio R Signorini

    1976-01-01

    Full Text Available Tal estudo teve por finalidade avaliar a velocidade e o transporte de volume da Corrente do Brasil, no seu trecho entre Cabo de São Tomé e Cabo Frio, fazendo uso do calculo geostrofico aplicado às secções amostradas durante os cruzeiros de abril e julho de 1970 e de julho de 1973. Foram localizados dois vórtices anticiclônicos, um durante o período de abril de 1970 e o outro durante julho de 1973. O valor máximo de velocidade da corrente na superfície foi de aproximadamente 70 cm/s e o transporte de volume foi de 14 x 10(6 m³/s. Foi possível também confirmar a existência de um meandro da Corrente do Brasil através da utilização de uma secção de BT (batitermografo mecânico associada a um registro contínuo de salinidade e de temperatura obtido com um termosalinografo.During the periods of April, July, 1970 and July, 1973, océanographic cruises were conducted in order to investigate the variability of the Brazil Current in the region between Cabo de Sao Tomé and Guanabara Bay. The geostrophic model of ocean circulation was applied using the hydrographie data collected during the cruise. From this study, a maximum velocity of 70 cm/sec and a volume trans port of 14 x 10(6 m³/sec were reported. The dynamic topography with reference to the 500 db surface, showed the presence of anticyclonic eddies during the periods of April, 1970, and July, 1973. The thermohaline structure within a meander of the Brazil Current is also presented utilizing the data coming from a continuous salinity and temperature recorder in conection with the data coming from a simultaneous BT section.

  19. Electronic Structure of Superconducting Ba6c60

    OpenAIRE

    Erwin, Steven C.; Pederson, Mark R

    1993-01-01

    We report the results of first-principles electronic-structure calculations for superconducting Ba6C60. Unlike the A3C60 superconductors, this new compound shows strong Ba-C hybridization in the valence and conduction regions, mixed covalent/ionic bonding character, partial charge transfer, and insulating zero-gap band structure.

  20. A Dubious Distinction? The BA versus the BS in Psychology

    Science.gov (United States)

    Pfund, Rory A.; Norcross, John C.; Hailstorks, Robin; Aiken, Leona S.; Stamm, Karen E.; Christidis, Peggy

    2016-01-01

    Previous studies have documented small differences between the bachelor of arts (BA) and the bachelor of science (BS) psychology degrees in their general education core requirements, particularly mathematics and science courses. But are there differences between the BA and BS degrees within the psychology curriculum? Using data from the…

  1. Octupole correlations in 143 Ba and 147 Pr

    International Nuclear Information System (INIS)

    High spin states in neutron-rich odd-Z 143,145 Ba nuclei have been investigated from the study of prompt γ-rays in the spontaneous fission of 252 Cf. Alternating parity bands are identified for the first time in 145 Ba and extended in 143 Ba. A new side band with equal, constant dynamic and kinematic moments of inertia equal to the rigid body value, as found in superdeformed bands, is discovered in 145 Ba. Enhanced E1 transitions between the negative- and positive-parity bands in these nuclei give evidence for strong octupole deformation in 143 Ba and in 145 Ba. These collective bands show competition and co-existence between symmetric and asymmetric shapes in 145 Ba. The first evidence is found for crossing M1 and E1 transitions between the s = +i and s = -i doublets in 143 Ba. Neutron-rich 147 Pr also was studied in the spontaneous fission of 252 Cf. Possible parity doublets observed in 147 Pr with N = 88 indicate that neutron-rich 59147 Pr88 nucleus exhibits strong octupole correlations like those observed in the 58146 Ce88 core. (authors)

  2. OUT Success Stories: Rural Electrification in Brazil

    International Nuclear Information System (INIS)

    The United States and Brazil are collaborating to bring electricity to some 5 million households in rural Brazil. Over the next decade, there is a potential to install approximately 500 megawatts (MW) of solar home systems and 1000 MW of community systems, bringing light to households, schools, and health clinics throughout rural Brazil

  3. Thermoelectric properties of doped BaHfO3

    Science.gov (United States)

    Dixit, Chandra Kr.; Bhamu, K. C.; Sharma, Ramesh

    2016-05-01

    We have studied the structural stability, electronic structure, optical properties and thermoelectric properties of doped BaHfO3 by full potential linearized augmented plane wave (FP-LAPW) method. The electronic structure of BaHfO3 doped with Sr shows enhances the indirect band gaps of 3.53 eV, 3.58 eV. The charge density plots show strong ionic bonding in Ba-Hf, and ionic and covalent bonding between Hf and O. Calculations of the optical spectra, viz., the dielectric function, refractive index and extinction coefficient are performed for the energy range are calculated and analyzed. Thermoelectric properties of semi conducting are also reported first time. The doped BaHfO3 is approximately wide band gap semiconductor with the large p-type Seebeck coefficient. The power factor of BaHfO3 is increased with Sr doping, decreases because of low electrical resistivity and thermal conductivity.

  4. Radioactive contamination of BaF2 crystal scintillator

    CERN Document Server

    Polischuk, O G; Bernabei, R; Cappella, F; Caracciolo, V; Cerulli, R; Di Marco, A; Danevich, F A; Incicchitti, A; Poda, D V; Tretyak, V I

    2013-01-01

    Barium fluoride (BaF$_2$) crystal scintillators are promising detectors to search for double beta decay processes in $^{130}$Ba ($Q_{2{\\beta}}$ = 2619(3) keV) and $^{132}$Ba ($Q_{2{\\beta}}$ = 844(1) keV). The $^{130}$Ba isotope is of particular interest because of the indications on 2${\\beta}$ decay found in two geochemical experiments. The radioactive contamination of BaF$_2$ scintillation crystal with mass of 1.714 kg was measured over 113.4 hours in a low-background DAMA/R&D set-up deep underground (3600 m w.e.) at the Gran Sasso National Laboratories of INFN (LNGS, Italy). The half-life of $^{212}$Po (present in the crystal scintillator due to contamination by radium) was estimated as $T_{1/2}$ = 298.8 $\\pm$ 0.8(stat.) $\\pm$ 1.4(syst.) ns by analysis of the events pulse profiles.

  5. Preliminary Study of Trace Metals by Environmental Quality Criteria in Sediments from a Mangrove Forest in Saco do Mamanguá (Ilha Gran de Bay, Rio de Janeiro, Brazil [Estudo Preliminar de Metais Traço por Critérios de Qualidade Ambiental em Sedimentos de um Manguezal do Saco do Mamanguá (Baía da Ilha Grande, Rio de Janeiro, Brasil

    Directory of Open Access Journals (Sweden)

    Paulo S. A. de Souza

    2013-08-01

    Full Text Available Urban and industrial activities are major sources of pollution to mangrove forests. Mangrove sediments can act as sink and reservoir for a wide range of contaminants, including heavy metals. The aim of this study was to investigate the contents of trace metals (Cu, Ni,Pb and Zn in sediment samples from a potentially unpolluted mangrove ecosystem in the south of Rio de Janeiro state, Brazil. Determinationof pH, Eh, organic carbon, nitrogen, phosphorus and particle size were also performed. In accordance to the international criteria of quality of sediment, the results indicate anthropogenic influence since some metals reached excessive values, which can affect the balance of the ecosystem studied. According to the results, the area cannot be considered a trace metal non-polluted area. Despite not having a significant source of metals inside the Bay nowadays, Ilha Grande Bay harbors a shipyard, an oil terminal, and a commercial port, as well as two thermonuclear power plants, all of which indirectly influence the study area.

  6. Bismuthates: BaBiO3 and related superconducting phases

    International Nuclear Information System (INIS)

    Highlights: • BaBiO3 has the perovskite structure, but tilting of the BiO6 octahedra destroy the ideal cubic symmetry except at temperatures above 820 K. BaBiO3 is a diamagnetic semiconductor due to a CDW, which is equivalent to a Ba2Bi3+Bi5+O6 representation. • Recent calculations and experimental results confirm that there is no significant deviation from the oxidation states of 3+ and 5+. • Superconductivity with a Tc as high as 13 K occurs for BaPb1−xBixO3 phases where the 6s band is about 25% filled, and superconductivity with a Tc as high as 34 K occurs for Ba1−xKxBiO3 phases where the 6s band is about 35% filled. • These two solid solutions can have cubic, tetragonal, or orthorhombic symmetry. • However, superconductivity has only been observed when the symmetry is tetragonal. - Abstract: BaBiO3 has the perovskite structure, but tilting of the BiO6 octahedra destroy the ideal cubic symmetry except at temperatures above 820 K. BaBiO3 is a diamagnetic semiconductor due to a charge density wave (CDW), which is equivalent to a Ba2Bi3+Bi5+O6 representation. Recent calculations and experimental results confirm that there is no significant deviation from the oxidation states of 3+ and 5+. Superconductivity with a Tc as high as 13 K occurs for BaPb1−xBixO3 phases where the 6s band is about 25% filled, and superconductivity with a Tc as high as 34 K occurs for Ba1−xKxBiO3 phases where the 6s band is about 35% filled. Structures in these two solid solutions can have cubic, tetragonal, orthorhombic, or monoclinic symmetry. However, superconductivity has only been observed when the symmetry is tetragonal

  7. Zika virus outbreak in Brazil.

    Science.gov (United States)

    Heukelbach, Jorg; Alencar, Carlos Henrique; Kelvin, Alyson Ann; de Oliveira, Wanderson Kleber; Pamplona de Góes Cavalcanti, Luciano

    2016-02-01

    Zika virus (ZIKV) infection is spreading rapidly within the Americas after originating from an outbreak in Brazil. We describe the current ZIKV infection epidemic in Brazil and the neurological symptoms arising. First cases of an acute exanthematic disease were reported in Brazil's Northeast region at the end of 2014. In March 2015, autochthonous ZIKV was determined to be the causative agent of the exanthematic disease. As cases of neurological syndromes in regions where ZIKV, dengue and/or Chikungunya viruses co-circulate were reported, ZIKV was also identified in the cerebrospinal fluid of patients with acute neurological syndromes and previous exanthematic disease. By the end of September 2015, an increasing number of infants with small head circumference or microcephaly were noted in Brazil's Northeast which was estimated to be 29 cases between August and October. ZIKV was identified in blood and tissue samples of a newborn and in mothers who had given birth to infants with microcephaly and ophthalmological anomalies. In 2015, there were an estimated 440,000 - 1,300,000 Zika cases in Brazil. There have been 4,783 suspected cases of microcephaly, most of them in the Northeast of Brazil associated with 76 deaths. The Ministry of Health is intensifying control measures against the mosquito Aedes aegypti and implemented intensive surveillance actions. Further studies are needed to confirm the suspected association between ZIKV infection and microcephaly; to identify antiviral, immunotherapy, or prophylactic vaccine; to introduce diagnostic ELISA testing. Clinical and epidemiological studies must be performed to describe viral dynamics and expansion of the outbreak. PMID:26927450

  8. Innovative methodology for the synthesis of Ba-M hexaferrite BaFe12O19 nanoparticles

    International Nuclear Information System (INIS)

    Graphical abstract: Transmission electron microscope images for the BaFe12O19. - Highlights: • BaFe12O19nanoparticles were prepared in single-phase from organometallic precursors. • BaFe12O19 possesses small size 65 nm, HC = 3695 Oe and Ms = 58 emu/g. • This method of preparation could be extended in the synthesis of other metal oxide nanoparticles. - Abstract: In this piece of work, high quality and homogeneity, barium hexaferrite (BaM) BaFe12O19 nanoparticles were prepared from organometallic precursors for the 1st time. This method is based on the formation of supramolecular crystal structure of Ba[Fe(H3NCH2CH2NH3)]Cl7·8H2O. The crystal structure, morphology and magnetic properties of BaFe12O19 at two different annealing temperatures namely 1000 °C and 1200 °C were investigated using X-ray diffraction, transmission electron microscope TEM and vibrating sample magnetometry (VSM). The results show that monophasic nanoparticles of hexaferrites were obtained. Nanoparticles of crystallite size 40–50 nm distinguished by narrow distribution and excellent homogeneity were obtained with superior magnetic properties which suggested single-domain particles of Ba-M hexaferrite

  9. Sexuality education in Brazil.

    Science.gov (United States)

    Suplicy, M

    1994-01-01

    The development of a comprehensive program of sex education in Brazilian schools is described in the context of Brazil's culture and traditions such as the Carnival. The influence of Catholicism is explored as is the effect of the behavioral restrictions called for by scientists concerned about sexually transmitted diseases. The Brazilian response to homosexuality is described, and the emergence of a public discussion of sexuality in the media is traced. It is noted that improvements in the status of women have been held in check by a public ridicule of feminism and by the strength of the traditional patriarchal structures which dominate the culture. With this picture given of how the issue of sexuality fits into Brazilian life, the 1980s initiative on the part of the Work and Research Group for Sex Education is described. Opposition to this effort has largely taken the form of passive resistance; even the Catholic Church has not officially protested the sex education program. Details are provided about 1) the selection of teachers, teacher training, and weekly supervisory teacher meetings; 2) the way in which parental permission for student participation was gained; 3) the implementation of the program; 4) the successes achieved; and 5) the difficulties encountered. Finally, it is noted that plans were made to expand the sex education project from the Sao Paulo area to 6 additional large cities in 1994. Also planned is the publication of the Brazilian Guidelines for Comprehensive Sexuality which will explain the sex education methodology and be extremely valuable in the establishment of new projects. PMID:12287356

  10. Mutation breeding in Brazil

    International Nuclear Information System (INIS)

    How mutation induction is used for plant breeding in Brazil is reported. For upland rice, the combined treatment with gamma-ray and mutagens (ethylene imine or ethylmethane sulfonate) has been used on the variety, Dourado Precoce, and some mutants with shortculm length and/or earliness without altering the productivity have been obtained. A project on the quantitative and qualitative protein improvement in upland rice was also started in 1979. In corn, the effect of gamma-irradiation on heterosis has been analyzed, and it was found that the single hybrids from two parental lines derived from irradiated seeds had increased ear productivity. For beans (Phaseolus yulgaris), gamma-irradiation and chemical mutagens have been used to induce the mutants with different seed color, disease resistance to golden mosaic virus and Xanthomonas phaseoli, earliness, high productivity and high protein content. Some mutants with partly improved characters have been obtained in these experiments. Two varieties of wheat tolerant to aluminum toxicity have been obtained, but the one showed high lodging due to its unfavorable plant height, and the other was highly susceptible to culm rust. Therefore, irradiation experiments have been started to improve these characters. The projects involving the use of gamma-irradiation have been tested to obtain the mutant lines insensitive to photoperiod and resistant to bud-blight in soybean, the mutant lines resistant to mosaic virus in papaya, the photoperiod-insensitive mutants in sorghum, the mosaic virus resistant and non-flowering mutants in sugar cane, and the Fusarium and nematode-resistant mutants in black pepper. (Kaihara, S.)

  11. Country watch: Brazil.

    Science.gov (United States)

    Szterenfeld, C

    1995-01-01

    The Health in Prostitution Project was launched in 1991 in Rio de Janeiro, Brazil. The project offers a multi-year training program of health education designed to both fight the stigmatization of and violence against commercial sex workers and enhance their self-esteem, self-determination, and access to civil rights. The project therefore promotes individual awareness while influencing public opinion and policies. At first, health agents were recruited among women and transvestites who work in street-based sex work. The program was then gradually expanded to include young male sex workers and other locations, such as private parlors, saunas, and escort services. People of all sexes and sexual orientation now comprise the health agent group. The program has a paid staff of five women, three young men, and three transvestites, and approximately 70 sex workers are trained annually. Basic training includes topics such as human sexuality, personal risk assessment, HIV/STD infection, negotiation of safer sex, and STD referral services. Year two training emphasizes reproductive and women's health issues, while year three courses prioritize street work methodologies. Theatrical performances, speaking English as a second language, and performing Bach flower therapy for clients take place during the fourth year. Program trainers include medical specialists, nurses, psychologists, health educators, lawyers, and university students. At least half of the 350 health agents trained thus far are estimated to be currently engaged in paid or voluntary prevention work. Two surveys with female sex workers in 1991 and 1993 found that reported regular condom use increased from 57% to 73%; the health agents are having an effect. The program is constantly evaluated and revised. PMID:12346918

  12. Consumers' healthcare rights in Brazil.

    Science.gov (United States)

    Schmidt, M J

    1996-01-01

    In many countries the rights of patients and consumers of health services are gaining ground and becoming law. As elsewhere, consumers in Brazil are becoming increasingly knowledgeable and demanding respect for their rights. Yet many Brazilian health services--public and private--are still reluctant to accept public evaluation and criticism. But with Brazil's new consumer's code the stage is set for a more active role of patients in their health decisions and for nurses and health professionals to acquiesce to consumers' dissatisfaction and respond with improved professional performance. PMID:8894838

  13. System of KF, KMoO4, BaF, BaMoO4

    International Nuclear Information System (INIS)

    The interaction between salts forming a ternary mutual K, Ba//F, MoO4 system has been studied by differential thermal analysis and visual-polythermal techniques. The system liquidus has been plotted, the compositions and temperatures of the non-variant points have been determined, and the fields of the crystallizing phases have been defined. An X-ray analysis has been made of K2Ba(MoO4)2. It has been established that double potassium and barium molybdate crystallizes to form a palmierite-type structure with the following hexagonal unit cell parameters: a-6.006 A, c=21.34 A, Z=3, space group R anti 3m

  14. REVIEW: TALES OF KHA BA DKAR PO

    Directory of Open Access Journals (Sweden)

    Jundan (Jasmine Zhang

    2015-03-01

    Full Text Available Review of: Jing Guo . 2012. Xue shan zhi shu [Tales of Kha ba dkar po] [ཁ་བ་དཀར་པོ]. Kunming: Yunnan People's Press. My favorite color is to add a little white on the whiteness, as if there was a snow-white eagle landing on a snow-covered mountain rock. My favorite color is to add a bit green on the greenness, as if there was an emerald parrot flying in the wild walnut woods. Deqin xianzi lyrics. These lyrics evoke a space beyond a sense of realism. In his book, Tales of Kha ba dkar po (ToK, Guo mentions these lines three times, suggesting a transcendental experience one may encounter in Tibetan areas while, at the same time, humbled by the mindset of human nature relations enacted by Tibetan people. ToK is, in many ways, a valuable academic work. Guo's favorite lines of xianzi allude to a 'space-in-between' the secular and sacred, which provides a unique experience for a broad readership, and induces the readers to deeper reflections on topics such as 'nature/ culture', 'belief', 'rite', and 'life/ death'. ToK is one of nineteen contemporary anthropological and ethnological works conducted in Yunnan Province, Southwest China and published in the 'Anthropology and Ethnology series in Contemporary China'. In the preface for the series, Yin (2012 suggests that there are two primary reasons for the somewhat slow development of Chinese scholarship in the field of anthropology and ethnology. One is the historically Han-centered intellectual atmosphere, and the other is the ideological ambivalence that ethnic culture has faced since the establishment of the People's Republic of China. In this context, Guo's longitudinal academic and intellectual engagement with the Tibetan communities in northwest Yunnan is included in this series as part of the increasing recognition of the significance of understanding southwest China's complex ethnic and cultural diversity.

  15. Electronic structure of BaO/W cathode surfaces

    Science.gov (United States)

    Muller, Wolfgang

    1989-01-01

    The local electronic structure of the emissive layer of barium dispenser thermionic cathodes is investigated theoretically using the relativistic scattered-wave approach. The interaction of Ba and O with W, Os, and W-Os alloy surfaces is studied with atomic clusters modeling different absorption environments representative of B- and M-type cathodes. Ba is found to be strongly oxidized, while O and the metal substrate are in a reduced chemical state. The presence of O enhances the surface dipole and Ba binding energy relative to Ba on W. Model results for W-Os alloy substrates show only relatively small changes in Ba and O for identical geometries, but very large charge redistributions inside the substrate, which are attributed to the electronegativity difference between Os and W. If Os is present in the surface layer, the charge transfer from Ba to the substrate and the Ba binding energy increase relative to W. Explanations are offered for the improved electron emission from alloy surfaces and the different emission enhancement for different alloy substrates.

  16. Labour market of bachue Brazil.

    OpenAIRE

    Rato Mhc; Braganca SL

    1980-01-01

    ILO pub-wep pub. Working paper on the labour market of Brazil - discusses theoretical aspects of labour market and labour law, effects of government's wage policy, minimum wage laws, underemployment, unemployment, labour market segmentation, labour demand and labour supply in the agricultural sector and the non-agricultural sector, the number of self employed, labour mobility, etc. Diagram, references and statistical tables.

  17. Violence in Schools in Brazil.

    Science.gov (United States)

    Pino, Angel

    1995-01-01

    The causes of violence in schools, as in society, are multiple and complex; they are rooted in the intolerable economic and social conditions created by Brazil's development model, characterized by unequal wealth distribution, widespread poverty, and an exclusive society. By mirroring this exclusionary process, the educational system is inherently…

  18. Evaluating School Facilities in Brazil

    Science.gov (United States)

    Ornstein, Sheila Walbe; Moreira, Nanci Saraiva

    2008-01-01

    Brazil's Sao Paulo Metropolitan Region is conducting a performance evaluation pilot study at three schools serving disadvantaged populations. The objective is first to test methods which can facilitate Post Occupancy Evaluations (POEs) and then to carry out the evaluations. The preliminary results are provided below.

  19. Brazil and CERN get closer

    CERN Multimedia

    2002-01-01

    The map of countries affiliated to CERN may in future include Brazil. On a visit to CERN last week, the Brazilian Minister of State for Science and Technology, Ronaldo Mota Sardenberg, expressed his country's interest in closer links to the Laboratory.   Luciano Maiani and the Brazilian Minister of State for Science and Technology Ronaldo Mota Sardenberg shake hands on CERN-Brazil co-operation. During his visit, the Minister and CERN Director General Luciano Maiani issued a joint statement for the continuation of a Co-operation Agreement first established in 1990. They also agreed to study the possibility of Brazil joining CERN-led Grid computing infrastructure projects. Brazilian physicists are already involved in the LHCb, ATLAS and CMS experiments. At the conclusion of the Minister's visit, he and Director-General Maiani agreed to establish a Working Group to examine ways of strengthening Brazil's links with CERN, and to prepare the way for a Brazilian request to CERN Council to become an Observer at th...

  20. Metals in soils adjacent to avenues of highly dense traffic of Sao Paulo city, Brazil

    International Nuclear Information System (INIS)

    Sao Paulo is the largest city in Brazil with about 19 millions of inhabitants in the metropolitan area, more than 8 million motor vehicles and strong industrial activity at the metropolitan region, which are responsible for increasing pollution in the region. Nevertheless, there is little information on metal contents in the metropolitan region soils, which would be very useful as a fingerprint of the environmental pollution. The present study aimed to determine As, Ba, Co, Cr, Sb and Zn concentrations in soils adjacent to avenues of highly dense traffic downtown Sao Paulo city: Consolacao/Reboucas Avenues; 23 de Maio Avenue and Tiradentes Avenue, to assess their possible sources and potential environmental impact. The analytical technique employed was Instrumental Neutron Activation Analysis (INAA). The results show metal concentration levels higher than the values reference values for soils of Sao Paulo, according to the Environmental Protection Agency of the State Sao Paulo (CETESB) guidelines. As, Ba and Zn showed concentration levels above the Intervention Values in some points, indicating direct or indirect potential risks to human health. The traffic related element Ba, Sb and Zn presented concentrations above the Prevention Values in points with high density traffic and may be associated to vehicular emissions. (author)

  1. Distribution of heavy metals in sediments of a tropical reservoir in Brazil: Sources and fate

    Science.gov (United States)

    Souza, Vinícius A.; Wasserman, Julio C.

    2015-11-01

    Juturnaíba Lake has been utilized for the captation of water to supply over one million people in the Lakes Region, Rio de Janeiro, Brazil. The water treatment plant sludges have been directly disposed in the margins of the lake, constituting a potential threat for the water quality. The aim of the present work was to evaluate the geochemical processes that control concentrations and mobility of metals (Al, Cu, Fe, Mn, Pb and Zn) in the sediments of the Juturnaíba Reservoir, and whether they are affected by the disposal of the water treatment sludges. Sediment samples were collected from thirty-two stations in the Juturnaíba lake, and the total concentration of metals (pseudo-total concentrations), granulometry, total organic carbon, total nitrogen and total phosphorus concentrations were evaluated. Distribution maps and attenuation models were constructed. The results show that the metals concentrations are affected by the presence of large stands of the aquatic macrophyte Egeria sp. (Hydrocharitaceae). The sludges from the water treatment plants do not seem to contribute to the contamination of the sediments, probably because the mobility of the contaminants in the dumping piles is low.

  2. Processing of R-Ba-Cu-O superconductors

    International Nuclear Information System (INIS)

    Precipitation processes were developed to introduce second phases as flux pinning centers in Gd-Ba-Cu-O and Nd-Ba-Cu-O superconductors. In Gd-Ba-Cu-O, precipitation is caused by the decrease of the upper solubility limit of Gd1+xBa2-xCu3O7 solid solution (Gd123ss) in low oxygen partial pressure. Processing of supersaturated Gd1.2Ba1.8Cu3O7 in low oxygen partial pressure can produce dispersed second phases. Gd211 is formed as a separate phase while extensive Gd124 type stacking fault is formed instead of a separate CuO phase. As a result of the precipitation reaction, the transition temperature and critical current density are increased. In Nd-Ba-Cu-O, precipitation is caused by the decrease of the lower solubility limit of Nd1+xBa2-xCu3O7 solid solution (Nd123ss) in oxygen. DTA results reveal the relative stability of Nd123ss in different oxygen partial pressures. In 1 bar oxygen partial pressure, Nd123ss with x = 0.1 is the most stable phase. In lower oxygen partial pressures, the most stable composition shifts towards the stoichiometric composition. The relative stability changes faster with decreasing oxygen partial pressure. Therefore, processing in oxygen and air tends to produce broad superconducting transitions but sharp transitions can be achieved in 0.01 bar and 0.001 bar oxygen partial pressures. While the lower solubility limits in 0.01 bar and 0.001 bar oxygen partial pressures remain at x = 0.00, the solubility limits in oxygen and air show a narrowing with decreasing temperature. Because of the narrowing of the solubility range in oxygen, oxygen annealing of Nd123 initially processed in low oxygen partial pressures will result in precipitation of second phases. The equilibrium second phase is BaCuO2 for temperature above 608 C, and at lower temperatures the equilibrium second phases are Ba2CuO3.3 and Ba2Cu3O5+y. However, annealing at low temperature may produce a fine metastable transition phase. A coherent intermediate perovskite structure with a

  3. BaMAP: A Broadband Multimedia Application Platform

    Institute of Scientific and Technical Information of China (English)

    2003-01-01

    In this paper, a broadband multimedia application platform, BaMAP, is introduced. The BaMAP aims to offer content and service providers a good integrated environment for efficient content production, management, delivery and sharing. It supports large-scale hierarchical storage, as well as mechanisms for content distribution and queries from remote nodes. The on-demand service, part of the BaMAP, offers two access interfaces, DVB-C and IP, which allow the platform to run on most of the existing access networks.

  4. Proton microbeam irradiation effects on PtBA polymer

    Indian Academy of Sciences (India)

    J Kamila; S Roy; K Bhattacharjee; B Rout; B N Dev; R Guico; J Wang; A W Haberl; P Ayyub; P V Satyam

    2006-04-01

    Proton beam lithography has made it possible to make various types of 3D-structures in polymers. Usually PMMA, SU-8, PS polymers have been used as resist materials for lithographic purpose. Microbeam irradiation effects on poly-tert-butyl-acrylate (PtBA) polymer using 2.0 MeV proton microbeam are reported. Preliminary results on pattern formation on PtBA are carried out as a function of fluence. After writing the pattern, a thin layer of Ge is deposited. Distribution of Ge in pristine and ion beam patterned surface of PtBA polymer is studied using the optical and secondary electron microscopic experimental methods.

  5. AMiBA: Array for Microwave Background Anisotropy

    OpenAIRE

    Lo, K. Y.; Chiueh, T.H.; Martin, R. N.; Ng, Kin-Wang; Liang, H.; Pen, Ue-Li; Ma, Chung-Pei

    2000-01-01

    As part of a 4-year Cosmology and Particle Astrophysics (CosPA) Research Excellence Initiative in Taiwan, AMiBA $-$ a 19-element dual-channel 85-105 GHz interferometer array is being specifically built to search for high redshift clusters of galaxies via the Sunyaev-Zeldovich Effect (SZE). In addition, AMiBA will have full polarization capabilities, in order to probe the polarization properties of the Cosmic Microwave Background. AMiBA, to be sited on Mauna Kea in Hawaii or in Chile, will rea...

  6. IBM-2 calculation of band mixing in 132Ba

    International Nuclear Information System (INIS)

    The band crossing in 132Ba has been investigated by using the interacting boson model. A broken neutron pair has been coupled to a collective boson core. The boson-fermion interaction hamiltonian contains terms which can transform a boson into a pair of quasiparticles and vice versa. The parameters were partly determined by fitting the collective states of 132,134Ba and the yrast states of 131Ba. The energy backbending has been satisfactorily reproduced. Good agreement of the electromagnetic moments has been reached. The structure of the wave functions has been discussed. (author)

  7. Primeiros dados quali-quantitativos do mexilhão-dourado, Limnoperna fortunei (Dunker), no Delta do Jacuí, no Lago Guaíba e na Laguna dos Patos, Rio Grande do Sul, Brasil e alguns aspectos de sua invasão no novo ambiente

    OpenAIRE

    Mansur Maria Cristina Dreher; Santos Cíntia Pinheiro dos; Darrigran Gustavo; Heydrich Ingrid; Callil Claudia T.; Cardoso Felipe Rossoni

    2003-01-01

    At the end of 1998 and the beginning of 1999, the golden mussel Limnoperna fortunei (Dunker, 1857), Mytilidae, originating from Southeast Asia, was registered for the first time in the Guaíba Lake Basin, Rio Grande do Sul State, Brazil. Quantitative samples were taken since the first register and for two years at various localities in the Jacuí Delta, northern limit of Guaíba Lake, and in the south limit of the later where it empties into Patos Lagoon. Samplings in Patos Lagoon revealed the p...

  8. Etnoconhecimentos de Espécies Forrageiras no Semi-árido da Paraíba, Brasil

    Directory of Open Access Journals (Sweden)

    Patrícia Carneiro Souto

    2010-10-01

    Full Text Available The Caatinga, bioma with restricted occurrence to Brazil, is characterized by a xerophilous vegetation, with herb, shrub and tree components and high species diversity. The objective of this work was to study with participative forage species of the caatinga and establish a order of importance of the species as forage value at different altidudes. The collection of data was done through the use of questionnaires with rural workers of two ecoregion in Santa Luzia, Paraíba State: Borborema plateau and “sertaneja” Depression setentrional. The altitude affected the crude protein content of Mimosa tenuiflora (Willd Poiret (jurema preta, Cnidoscollus phyllacanthus Muel. Arg. Pax et. K. Hoffm. (faveleira, Caesalpinia pyramidalis Tul. (catingueira, Capparis flexuosa L. (feijão bravo and Bauhinia cheilantha Bong. (mororó forage, was higher than the minimum demanded by ruminants in the dormant period.

  9. Filariose bancroftiana no Brasil Bancroftian filariasis in Brazil

    Directory of Open Access Journals (Sweden)

    Eliana M. M. Rocha

    1998-02-01

    Full Text Available Foi feita revisão dos estudos sobre a distribuição geográfica e prevalências da filariose linfática bancroftiana no Brasil. Entre 1951 a 1958 foram realizados inquéritos hemoscópicos e entomológicos no País, sendo a transmissão autóctone comprovada em apenas 11 Municípios: Ponta Grossa (SC, 14,5%; Belém (PA, 9,8%; Barra de Laguna (SC, 9,4%; Recife (PE, 6,9%; Castro Alves (BA, 5,9%; Florianópolis (SC, 1,4%; São Luís (MA, 0,6%; Salvador (BA, 0,4%; Maceió (AL, 0,3%; Manaus (AM, 0,2% e Porto Alegre (RS, 0,1%. A distribuição da parasitose era urbana e focal, principalmente em cidades litorâneas. As ações de controle implementadas levaram a uma apreciável queda nas taxas de microfilarêmicos sendo consideradas, a partir de então, áreas endêmicas para filariose linfática no Brasil somente as cidades de Belém e Recife. Estudos recentes mostram transmissão ativa da parasitose, com prevalências superiores às detectadas no passado, em Maceió, cujo foco era considerado extinto, e em Recife. O conhecimento da situação atual da bancroftose no Brasil é de fundamental importância para a implementação de ações de controle da endemia envolvendo o Ministério da Saúde e órgãos de saúde pública.The past and present distribution of Bancroftian filariasis in Brazil is reviewed. Parasitological and entomological surveys were conducted between 1951 and 1958, the autochthonous transmission of Wuchereria bancrofti having been found only in 11 places in the country as follows, with the corresponding prevalences: Ponta Grossa (SC, 14.5%; Belém (PA, 9.8%; Barra de Laguna (SC, 9.4%; Recife (PE, 6.9%; Castro Alves (BA, 5.9%; Florianópolis (SC, 1.4%; São Luis (MA, 0.6%; Salvador (BA, 0.4%; Maceió (AL, 0.3%; Manaus (AM, 0.2% and Porto Alegre (RS, 0.1%. The distribution of infection was urban and focal, occurring mainly along the coast. Control measures carried out against filariasis achieved considerable success, reducing

  10. The population question in Brazil.

    Science.gov (United States)

    1992-01-01

    Population control programs were instituted in Brazil in the 1960s and resulted in as 50% reduction of the fertility rate in 20 years with a reduction in population growth from 2.9%/year in the 1960s to 2.1% in the 1980s. The rapid urbanization which has occurred in Brazil also contributed to this process. While the Brazilian government has eschewed foreign intervention, it encourages the population control programs which are funded by international agencies. The women's movement became involved in policies relating to reproductive rights in 1980, and attempts were made to change the focus of women's health care and the right of women to make reproductive choices. 71% of Brazilian women of reproductive age who are married or living in consensual union use contraception. This compares with 70% of women in developed countries. In Brazil, however, 44% of the women have been sterilized, 41% use oral contraceptives (OCs), and 12% use natural or barrier methods, compared to 7, 13, and 41%, respectively, in developed countries. Sterilization is illegal in Brazil, although it is widespread; the high number of Cesarean section births may determine a medical need for sterilization (after three such deliveries, for example). Abortion is also illegal (except in cases of rape or if the mother's life is in danger) and widespread. The 2 to 3 million abortions each year are thought to be the third cause of maternal mortality. Studies of OC use have shown that Brazilian women often use OCs without medical monitoring or in cases when the contraceptive is absolutely contraindicated. In the past few years, Brazilian women's groups have demanded that the government deal with the issue of family planning in order to stop the intervention of international population control agencies. Brazil has never had the sufficiently modern and effective policy to help women to use contraception safely during the various stages of their reproductive lives. PMID:12286343

  11. Metazoan parasites of Mandi-amarelo Pimelodus maculatus and of Jundiá Rhamdia quelen (Osteichthyes: Siluriformes) of Paraíba do Sul River, Volta Redonda, Rio de Janeiro Metazoários parasitos do Mandi-amarelo Pimelodus maculatus e do Jundiá Rhamdia quelen(Osteichthyes: Siluriformes) do Rio Paraíba do Sul, Volta Redonda, Rio de Janeiro

    OpenAIRE

    Aline Cristine Pinto Venancio; Gesilene Ribeiro de Aguiar; Patrícia da Silva Lopes; Dimitri Ramos Alves

    2010-01-01

    Forty-one specimens of mandi-amarelo Pimelodus maculatus Lacépède, 1803 (Siluriformes: Pimelodidae) and 54 specimens of jundiá Rhamdia quelen (Quoy & Gaimard, 1824) (Siluriformes: Heptapteridae) were collected from the Paraíba do Sul River, Volta Redonda, State of Rio de Janeiro, Brazil between November 2007 and October 2008. These fish underwent necropsy so their infracommunities of metazoan parasites could be studied. The same three species of parasites were collected in the two fish specie...

  12. Isolation of Bacillus thuringiensis from the state of Amazonas, in Brazil, and screening against Aedes aegypti (Diptera, Culicidae

    Directory of Open Access Journals (Sweden)

    Joelma Soares-da-Silva

    2015-03-01

    Full Text Available We investigated the use of Bacillus thuringiensis isolated in the state of Amazonas, in Brazil, for the biological control of the dengue vector Aedes aegypti. From 25 soil samples collected in nine municipalities, 484 bacterial colonies were obtained, 57 (11.78% of which were identified as B. thuringiensis. Six isolates, IBt-03, IBt-06, IBt-07, IBt-28, IBt-30, and BtAM-27 showed insecticidal activity, and only BtAM-27 presents the five genes investigated cry4Aa, cry4Ba, cry10Aa, cry11Aa, and cry11Ba. The IBt-07 and IBt- 28, with lower LC50 values, showed equal toxicity compared to the standards. The isolates of B. thuringiensis from Amazonas constitute potential new means of biological control for A. aegypti, because of their larvicidal activity and the possibility that they may also contain new combinations of toxins.

  13. Precambrian Cratons and Fold-Belts in Brazil: Overview

    Science.gov (United States)

    Fuck, R.

    2008-05-01

    The main Precambrian terrains recognized in Brazil comprise the Amazonian, São Francisco and Rio de la Plata cratons, surrounded by Neoproterozoic Brasiliano fold belts, making up the Borborema, Mantiqueira and Tocantins provinces. The Amazonian craton comprises an Archean core, surrounded by Paleoproterozoic terrains (Maroni-Itacaiunas, Ventuari-Tapajós, Rio Negro-Juruena), which southwestwards give way to the Mesoproterozoic Rondoniano-San Ignacio and Sunsas belts, the latter thought to be related to the Grenville belt of North America. The São Francisco craton comprises several Archean blocks (Gavião, Serrinha, Jequié) amalgamated by the Paleoproterozoic high-grade Itabuna-Salvador-Curaçá orogen. The Rio de la Plata craton, largely covered by Phanerozoic strata, is made of Paleoproterozoic basement gneiss and several Paleoproterozoic greenstone belts. Other cratonic blocks are hidden below large Phanerozoic basins, like the Paranapanema and Parnaíba blocks below the Paraná and Parnaíba basins, respectively. Several smaller Archean/Paleoproterozoic blocks appear within the Brasiliano provinces: some were strongly reworked during the Neoproterozoic orogenic events (São José do Campestre, Pernambuco-Alagoas, Goiás, Guanhães, Juiz de Fora, Curitiba), others were only marginally affected (São Luiz, Rio Apa, Luís Alves). The Brasiliano provinces are the result of Neoproterozoic to early Paleozoic orogenic events within the framework of West Gondwana amalgamation. The Mantiqueira Province extends from eastern Brazil to southern Uruguay and includes the Araçuaí, Ribeira and Dom Feliciano fold belts, bordering the São Francisco, Paranapanema and Rio de la Plata cratons and surrounding the Luís Alves craton. The Tocantins province in central Brazil includes the Araguaia, Paraguay and Brasília fold belts, the former bordering the Amazonian craton, the second bordering both the southern Amazonian craton and the Rio Apa block, and the last established on

  14. 76 FR 30195 - Brazil: Competitive Factors in Brazil Affecting U.S. and Brazilian Agricultural Sales in Selected...

    Science.gov (United States)

    2011-05-24

    ... COMMISSION Brazil: Competitive Factors in Brazil Affecting U.S. and Brazilian Agricultural Sales in Selected... No. 332-524, Brazil: Competitive Factors in Brazil Affecting U.S. and Brazilian Agricultural Sales in... competitive factors in Brazil affecting U.S. and Brazilian agricultural sales in third country markets....

  15. Phase equilibria in BaS-Cu2S-Gd2S3 system

    International Nuclear Information System (INIS)

    Phase equilibria in BaS-Cu2S-Gd2S3 system are studied along isothermal (800 K) and polythermal sections CuGdS2-BaS, Cu2S-BaGdCuS3, BaGdCuS3-Gd2S3, BaGdCuS3-BaGd2S4. Complex sulfide BaGdCuS3 with orthorhombic lattice is formed, lattice parameters are determined. Compositions of eutectics forming in the system are determined

  16. Theoretical electric quadrupole transition probabilities for Ca, Sr and Ba

    Science.gov (United States)

    Bauschlicher, C. W., Jr.; Langhoff, S. R.; Jaffe, R. L.; Partridge, H.

    1984-01-01

    The 1D-1S quadrupole transition probabilities for Ca, Sr and Ba have been computed using extended GTO and STO valence basis sets and configuration-interaction wavefunctions that include the important core-valence correlation effects. For Ba and Sr, the relativistic contraction of the core orbitals was accounted for in the GTO calculations by a relativistic effective-core potential. The computed Einstein coefficient for Ca of 39.6/s is in excellent agreement with the recent experimental value of 40 + or - 8/s. The best Einstein coefficients for Sr (44.7/s) and Ba (2.98/s) imply increasing quadrupole line strengths down the column. Relativistic effects substantially increase the quadrupole Einstein coefficient for Ba.

  17. Octa-coordination and the hydrated Ba2+(aq) ion

    CERN Document Server

    Chaudhari, Mangesh I; Rempe, Susan B

    2014-01-01

    The hydration structure of Ba^{2+} ion is important for understanding blocking mechanisms in potassium ion channels. Here, we combine statistical mechanical theory, ab initio molecular dynamics simulations, and electronic structure methods to calculate the hydration free energy and local hydration structure of Ba^{2+}(aq). The predicted hydration free energy (-302.9$\\pm$0.7 kcal/mol) matches the experimental value (-302.56 kcal/mol) when the fully occupied and exclusive inner solvation shell is treated. In the local environment defined by the inner and first shell of hydrating waters, Ba^{2+} is directly coordinated by eight (8) waters. Octa-coordination resembles the structure of Ba^{2+} and K^+ bound in potassium ion channels, but differs from the local hydration structure of K^+(aq) determined earlier.

  18. AMiBA Array for Microwave Background Anisotropy

    CERN Document Server

    Lo, K Y; Martin, R N; Ng, K W; Liang, H; Pen, U; Ma Chung Pei; Ng, Kin-Wang; Pen, Ue-li; Ma, Chung-Pei

    2000-01-01

    As part of a 4-year Cosmology and Particle Astrophysics (CosPA) Research Excellence Initiative in Taiwan, AMiBA $-$ a 19-element dual-channel 85-105 GHz interferometer array is being specifically built to search for high redshift clusters of galaxies via the Sunyaev-Zeldovich Effect (SZE). In addition, AMiBA will have full polarization capabilities, in order to probe the polarization properties of the Cosmic Microwave Background. AMiBA, to be sited on Mauna Kea in Hawaii or in Chile, will reach a sensitivity of $\\sim 1$ mJy or 7$\\mu$K in 1 hour. The project involves extensive international scientific and technical collaborations. The construction of AMiBA is scheduled to starting operating in early 2004.

  19. Babesiosis and anaplasmosis in dairy cattle in Northeastern Brazil

    Directory of Open Access Journals (Sweden)

    Francisco de A.L. Souza

    2013-09-01

    Full Text Available The goal of this study was to characterize the epidemiological situation and the factors involved in the prevalence of babesiosis and anaplasmosis in cattle in the dairy basin of Parnaíba, Piauí, Brazil. The study was conducted in 22 farms, and collected blood samples from 202 cattle to study serological, molecular and determination of the packed cell volume (PCV. On the farms were applied surveys involving epidemiological aspects. Seroprevalence rates were: Babesia bigemina 52.5%, B. bovis 68.8%, and Anaplasma marginale 89.1%. Of the samples analyzed, 73.3% were reactive for Babesia spp. and A. marginale, showing co-infection. In PCR, B. bigemina and B. bovis were positive in 52.0% and 33.2% respectively, and A. marginale in 76.2%. Of these, 51.5% amplified DNA of Babesia spp. and A. marginale. The semi-intensive management predominated in 68.0% of the farms studied. The clinical history of babesiosis and anaplasmosis, was reported from 73% of the farms. There was no significant difference (p>0.05 between age groups and for the PCV of positive compared with negative animals. The study indicates that in this region is enzootic instability for babesiosis and enzootic stability for anaplasmosis, reinforcing the fact that in Brazil there are areas of enzootic instability, even in tropical regions of the country. The PCR technique was a valuable tool for the diagnosis of these diseases and may be used to characterize a geographic region.

  20. Tabagismo em amostra de adolescentes escolares de Salvador-Bahia Smoking among school adolescents in Salvador (BA

    Directory of Open Access Journals (Sweden)

    Adelmo Souza Machado Neto

    2003-10-01

    Full Text Available INTRODUÇÃO: O hábito de fumar em geral se inicia na adolescência. No Brasil, as estimativas da freqüência deste hábito entre adolescentes variam de 1% até 35%. OBJETIVO: Estimar a prevalência do tabagismo entre os adolescentes da oitava série do ensino fundamental à terceira série do curso médio, em escolas de Salvador - Bahia, Brasil. MÉTODO: Feito um estudo do tipo corte transversal de caráter exploratório. Foram aplicados 3.500 questionários a alunos matriculados entre a 8ª série do ensino fundamental e a 3ª série do ensino médio, em cinco escolas da região metropolitana de Salvador (BA. Análise estatística: medidas descritivas e de associação (razão de prevalência e o teste t de Student e o do qui-quadrado. RESULTADOS: A prevalência do tabagismo entre adolescentes de Salvador (BA foi de 9,6%, considerando-se os 3.180 questionários válidos, sendo maior no sexo masculino (14% que no feminino (6%. À medida que aumentava a idade, elevava-se essa prevalência. A média de idade do início do tabagismo foi de 14 ± 2 anos. Dentre adolescentes, 46% experimentaram o cigarro e 20% destes continuaram fumando. Entre filhos de fumantes a freqüência foi maior. O número médio de cigarros consumidos por dia pelos adolescentes que fumavam diariamente (n = 132 foi de 7 ± 6, sendo maior no sexo masculino. CONCLUSÃO: A prevalência do tabagismo em uma amostra selecionada de adolescentes escolares de Salvador (BA foi de 9,6%, sendo maior entre os indivíduos do sexo masculino. A experimentação e a influência dos pais foram associadas ao tabagismo nos adolescentes.BACKGROUND: Most tobacco users become addicted during adolescence. In Brazil, smoking prevalence among teenagers varies from 1% to 35%. OBJECTIVE: To estimate the prevalence of smoking among teenagers, aged from 13 to 20, in fundamental and high school in Salvador, Bahia, Brazil. METHOD: Cross-sectional exploratory study. Thirty five hundred questionnaires were

  1. New geographic records and color variation of Dendropsophus pseudomeridianus (Amphibia, Anura, Hylidae) in the State of Rio de Janeiro, Brazil

    OpenAIRE

    Adriano Lima Silveira; Rafael Cunha Pontes; Rodrigo de Oliveira Lula Salles

    2011-01-01

    In this paper, we present the new records of Dendropsophus pseudomeridianus in the State of Rio de Janeiro, Brazil, obtained through field samplings in several areas of the Atlantic Rain Forest in that state. Herein are also presented the color variations of the species. Dendropsophus pseudomeridianus was collected in the costal lowlands of northern Rio de Janeiro and the capital’s metropolitan region, in the state’s northwest inland localities, in Serra do Desengano and Vale do Paraíba do Su...

  2. Ba-bah on tulnud / Liina Jänes

    Index Scriptorium Estoniae

    Jänes, Liina, 1977-

    2005-01-01

    Eesti noori disainereid-sisearhitekte ühendavast disainiagentuurist Ba-bah, selle eesmärgist. Agentuuri juhib Veiko Jääger. Mais 2005 Disaini- ja Arhitektuurigaleriis toimunud Ba-bahi avanäitusest, kus oli väljas töid EKA sisearhitektuuri, klaasi-, ehte- ja sepakunsti eriala üliõpilastelt ning metallmööbli valmistajalt Kalle Pruudenilt

  3. Configuration Database for BaBar On-line

    OpenAIRE

    Bartoldus, R.; Dubois-Felsmann, G.; Kolomensky, Y.; Salnikov, A.

    2003-01-01

    The configuration database is one of the vital systems in the BaBar on-line system. It provides services for the different parts of the data acquisition system and control system, which require run-time parameters. The original design and implementation of the configuration database played a significant role in the successful BaBar operations since the beginning of experiment. Recent additions to the design of the configuration database provide better means for the management of data and add ...

  4. Leptonic B Decays at BaBar

    Energy Technology Data Exchange (ETDEWEB)

    Baracchini, Elisabetta; /Rome U. /INFN, Rome

    2011-11-10

    We will present the most recent results on leptonic B decays B{sup {+-}(0)} {yields} K*{sup {+-}(0)}{nu}{bar {nu}} and B{sup {+-}} {yields} {mu}{sup {+-}}{nu}, based on the data collected by the BaBar detector at PEP-II, an asymmetric e{sup +}e{sup -} collider at the center of mass energy of the {Upsilon}(4S) resonance. Rare B decays have always been a standard probe for New Physics (NP) searches. The very low Standard Model (SM) rate of these decays often make them unaccessible with the present experimental datasets, unless NP effects enhance the rate up to the current experimental sensitivity. Moreover, as NP effects can modify the decay kinematic, particular attention must be paid in order to perform a model independent analysis. A B-Factory provides an unique environment to investigate these processes. The high number of B{bar B} pairs produced by a B-Factory often allows to approach the needed experimental sensitivity. Moreover, the clean environment and the closed kinematic of the initial state enable to obtaining a very pure sample where to look for these decays.

  5. Leptonic B Decays at BaBar

    Energy Technology Data Exchange (ETDEWEB)

    Monorchio, Diego; /INFN, Naples /Naples U.

    2011-09-13

    The authors will present the most recent results on leptonic B decays B{sup {+-}(0)} {yields} K*{sup {+-}(0)} {nu}{bar {nu}} and B{sup {+-}} {yields} {mu}{sup {+-}}{nu}, based on the data collected by the BaBar detector at PEP-II, an asymmetric e{sup +}e{sup -} collider at the center of mass energy of the {Upsilon}(4S) resonance. Rare B decays have always been a standard probe for New Physics (NP) searches. The very low Standard Model (SM) rate of these decays often make them unaccessible with the present experimental datasets, unless NP effects enhance the rate up to the current experimental sensitivity. Moreover, as NP effects can modify the decay kinematic, particular attention must be payed in order to perform a model independent analysis. A B-Factory provides an unique environment where to investigate these processes. The high number of B{bar B} pairs produced by a B-Factory often allows to approach the needed experimental sensitivity. Moreover, the clean environment and the closed kinematic of the initial state enable to obtaining a very pure sample where to look for these decays.

  6. Tests of AMiBA Data Integrity

    CERN Document Server

    Nishioka, Hiroaki; Wu, Jiun-Huei Proty; Ho, Paul T P; Huang, Chih-Wei Locutus; Koch, Patrick M; Liao, Yu-Wei; Lin, Kai-Yang; Liu, Guo-Chin; Molnar, Sandor M; Umetsu, Keiichi; Birkinshaw, Mark; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Chen, Ming-Tang; Han, Chih-Chiang; Huang, Yau-De; Hwang, Yuh-Jing; Jiang, Homin; Kesteven, Michael; Kubo, Derek Y; Li, Chao-Te; Martin-Cocher, Pierre; Oshiro, Peter; Raffin, Philippe; Wei, Tashun; Wilson, Warwick

    2008-01-01

    We describe methods used to validate data from the Y.T. Lee Array for Microwave Background Anisotropy (AMiBA), an interferometric array designed to measure the Sunyaev-Zel'dovich effect and the anisotropy of the Cosmic Microwave Background (CMB). We perform several statistical tests on data from pointed galaxy cluster observations taken in 2007 and noise data from long-term blank sky observations and measurements with the feeds covered by the absorbers. We apply power spectrum analysis, cross power spectrum analysis among different outputs with different time lags in our analog correlator, and sample variance law tests to noise data. We find that (1) there is no time variation of electronic offsets on the time scale of our two-patch observations (~10 minutes); (2) noise is correlated by less than 10% between different lags; and (3) the variance of noise scales with the inverse of time. To test the Gaussianity of the data, we apply Kolmogorov-Smirnov (K-S) tests to cluster data, and find that a 5% significance...

  7. Tests of AMiBA Data Integrity

    Science.gov (United States)

    Nishioka, Hiroaki; Wang, Fu-Cheng; Wu, Jiun-Huei Proty; Ho, Paul T. P.; Huang, Chih-Wei Locutus; Koch, Patrick M.; Liao, Yu-Wei; Lin, Kai-Yang; Liu, Guo-Chin; Molnar, Sandor M.; Umetsu, Keiichi; Birkinshaw, Mark; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Chen, Ming-Tang; Han, Chih-Chiang; Huang, Yau-De; Hwang, Yuh-Jing; Jiang, Homin; Kesteven, Michael; Kubo, Derek Y.; Li, Chao-Te; Martin-Cocher, Pierre; Oshiro, Peter; Raffin, Philippe; Wei, Tashun; Wilson, Warwick

    2009-04-01

    We describe methods used to validate data from the Y.T. Lee Array for Microwave Background Anisotropy (AMiBA), an interferometric array designed to measure the Sunyaev-Zel'dovich effect and the anisotropy of the cosmic microwave background. We perform several statistical tests on data from pointed observations of galaxy clusters taken in 2007 and noise data from long-term blank-sky observations and measurements with the feeds covered by the absorbers. We apply power-spectrum analysis, cross-power-spectrum analysis among different outputs with different time lags in our analog correlator, and sample-variance law tests to noise data. We find that (1) there is no time variation of electronic offsets on the timescale of our two-patch observations (~10 minutes); (2) noise is correlated by less than 10% between different lags; and (3) the variance of noise scales with the inverse of time. To test the Gaussianity of the data, we apply Kolmogorov-Smirnov tests to cluster data and find that a 5% significance level efficiently detects data sets with known hardware problems without rejecting an excess of acceptable data. We also calculate third- and fourth-order moments and cumulants for the noise residual visibilities and find that about 95% of our data are within the 99% confidence regions of Gaussianity.

  8. High spin structure in {sup 130,131}Ba

    Energy Technology Data Exchange (ETDEWEB)

    Kaur, Navneet; Kumar, A.; Singh, Amandeep; Kumar, S.; Kaur, Rajbir; Singh, Varinderjit; Behera, B.R.; Singh, K.P.; Singh, G. [Panjab University, Department of Physics, Chandigarh (India); Mukherjee, G. [Variable Energy Cyclotron Centre, Kolkata (India); Sharma, H.P. [Banaras Hindu University, Department of Physics, Varanasi (India); Kumar, Suresh [Delhi University, Department of Physics and Astrophysics, Delhi (India); Kumar Raju, M.; Madhusudhan Rao, P.V. [Andhra University, Department of Nuclear Physics, Vishakapatnam (India); Muralithar, S.; Singh, R.P.; Kumar, Rakesh; Madhvan, N.; Bhowmik, R.K. [Inter University Accelrator Centre, New Delhi (India)

    2014-01-15

    High spin states of {sup 130,131}Ba have been investigated via fusion evaporation reactions {sup 122}Sn({sup 13}C,4n){sup 131}Ba and {sup 122}Sn({sup 13}C, 5n){sup 130}Ba at E{sub beam}=65 MeV. The level schemes of {sup 130,131}Ba have been extended by placing several new {gamma} transitions. A few interband transitions connecting two negative-parity bands, which are the experimental fingerprints of signature partners, have been established in {sup 130}Ba. Spin and parity of a side band have been assigned in {sup 131}Ba and this dipole band is proposed to have a three-quasiparticle configuration, {nu}h{sub 11/2} x {pi}h{sub 11/2} x {pi}g{sub 7/2}. The observed band structures and nuclear shape evolution as a function of the angular momentum have been discussed in the light of Total-Routhian-Surface calculations. (orig.)

  9. Constraining Intracluster Gas Models with AMiBA13

    Science.gov (United States)

    Molnar, Sandor M.; Umetsu, Keiichi; Birkinshaw, Mark; Bryan, Greg; Haiman, Zoltán; Hearn, Nathan; Shang, Cien; Ho, Paul T. P.; Locutus Huang, Chih-Wei; Koch, Patrick M.; Liao, Yu-Wei Victor; Lin, Kai-Yang; Liu, Guo-Chin; Nishioka, Hiroaki; Wang, Fu-Cheng; Proty Wu, Jiun-Huei

    2010-11-01

    Clusters of galaxies have been extensively used to determine cosmological parameters. A major difficulty in making the best use of Sunyaev-Zel'dovich (SZ) and X-ray observations of clusters for cosmology is that using X-ray observations it is difficult to measure the temperature distribution and therefore determine the density distribution in individual clusters of galaxies out to the virial radius. Observations with the new generation of SZ instruments are a promising alternative approach. We use clusters of galaxies drawn from high-resolution adaptive mesh refinement cosmological simulations to study how well we should be able to constrain the large-scale distribution of the intracluster gas (ICG) in individual massive relaxed clusters using AMiBA in its configuration with 13 1.2 m diameter dishes (AMiBA13) along with X-ray observations. We show that non-isothermal β models provide a good description of the ICG in our simulated relaxed clusters. We use simulated X-ray observations to estimate the quality of constraints on the distribution of gas density, and simulated SZ visibilities (AMiBA13 observations) for constraints on the large-scale temperature distribution of the ICG. We find that AMiBA13 visibilities should constrain the scale radius of the temperature distribution to about 50% accuracy. We conclude that the upgraded AMiBA, AMiBA13, should be a powerful instrument to constrain the large-scale distribution of the ICG.

  10. CONTRAST STUDY ON CT AND BA IN DIAGNOSIS OF PATIENTS WITH ATHEROTHROMBOTIC BRAIN INFARCTION

    Institute of Scientific and Technical Information of China (English)

    Mingshun Liu; Haixiang Gao; Xiaomei Fu; Po Ma

    2007-01-01

    Objectives: To explore applied value on CT and BA in diagnosis of patients with atherothrombotic brain infarction. Methods:CT and BA were examined in 246 patients with atherothrombotic brain infarction. Results:The different change of CT and BA were showed in 246 patients with atherothrombotic brain infarction. Conclusions: There were separately different advantage and shortcoming in CT and BA in diagnosis of atherothrombotic brain infarction. The value of clinical application of BA was important in diagnosis of atherothrombotic brain infarction.

  11. Electronic structure and magnetism in BaMn2As2 and BaMn2Sb2

    Energy Technology Data Exchange (ETDEWEB)

    An, Jiming [ORNL; Safa-Sefat, Athena [ORNL; Singh, David J [ORNL; Du, Mao-Hua [ORNL

    2009-01-01

    We study the properties of ThCr{sub 2}Si{sub 2} structure BaMn{sub 2}As{sub 2} and BaMn{sub 2}Sb{sub 2} using density functional calculations of the electronic and magnetic properties as well as experimental measurements on single crystal samples of BaMn{sub 2}As{sub 2}. These materials are local moment magnets with moderate band gap antiferromagnetic semiconducting ground states. The electronic structures show substantial Mn-pnictogen hybridization, which stabilizes an intermediate spin configuration for the nominally d{sup 5} Mn. The results are discussed in the context of possible thermoelectric applications and the relationship with the corresponding iron/cobalt/nickel compounds Ba(Fe,Co,Ni){sub 2}As{sub 2}.

  12. Assessment of the trophic status of four coastal lagoons and one estuarine delta, eastern Brazil.

    Science.gov (United States)

    Cotovicz Junior, Luiz Carlos; Brandini, Nilva; Knoppers, Bastiaan Adriaan; Mizerkowski, Byanka Damian; Sterza, José Mauro; Ovalle, Alvaro Ramon Coelho; Medeiros, Paulo Ricardo Petter

    2013-04-01

    Anthropogenic eutrophication of aquatic ecosystems continues to be one of the major environmental issues worldwide and also of Brazil. Over the last five decades, several approaches have been proposed to discern the trophic state and the natural and cultural processes involved in eutrophication, including the multi-parameter Assessment of Estuarine Trophic Status (ASSETS) index model. This study applies ASSETS to four Brazilian lagoons (Mundaú, Manguaba, Guarapina, and Piratininga) and one estuarine delta (Paraíba do Sul River), set along the eastern Brazilian coast. The model combines three indices based on the pressure-state-response (PSR) approach to rank the trophic status and forecast the potential eutrophication of a system, to which a final ASSETS grade is established. The lagoons were classified as being eutrophic and highly susceptible to eutrophication, due primarily to their longer residence times but also their high nutrient input index. ASSETS classified the estuary of the Paraíba do Sul river with a low to moderate trophic state (e.g., largely mesotrophic) and low susceptibility to eutrophication. Its nutrient input index was high, but the natural high dilution and flushing potential driven by river flow mitigated the susceptibility to eutrophication. Eutrophication forecasting provided more favorable trends for the Mundaú and Manguaba lagoons and the Paraíba do Sul estuary, in view of the larger investments in wastewater treatment and remediation plans. The final ASSETS ranking system established the lagoons of Mundaú as "moderate," Manguaba as "bad," Guarapina as "poor," and Piratininga as "bad," whereas the Paraíba do Sul River Estuary was "good." PMID:22821328

  13. Brazil, oil and statoil: challenges and opportunities

    OpenAIRE

    Linchausen, Harald Christoffer

    2010-01-01

    This thesis aims to shed some light on what challenges Brazil faces concerning its oil reserves. It also considers Statoil’s situation and attempts to analyse the challenges both face. Hotelling’s rule and Dunning’s OLI framework are presented and used in order to complete this analysis. The thesis starts by looking at the history of petroleum in Brazil and Norway. Next, the theoretical framework is outlined. The challenges for both Brazil and Statoil are presented and anal...

  14. Corruption - Can Brazil win this war?

    OpenAIRE

    Washington de Queiroz, Jorge

    2015-01-01

    Corruption in Brazil is endemic and has increased since the end of the military transition regime in 1985, a year marked by an indirect presidential election, which was followed by the 1988 Constitutional Reform. The present thesis answers the research question of how corruption affects well-being in Brazil" by investigating the existing cause-effect relationships and complex dynamics and logic between corruption and related variables in Brazil, with each of the twenty-s...

  15. Brazil: The Future of Modern Agriculture?

    OpenAIRE

    Holger Matthey; Fabiosa, Jacinto F.; Fuller, Frank H.

    2004-01-01

    In an attempt to understand better Brazil's future role in agricultural markets, the authors of this report traveled to Brazil on a fact-finding mission in September 2003. The goal was to get a first-hand impression of Brazil's agricultural sector and especially its future potential. In this report we provide a general description of crop and livestock production, government policies, public and private cooperation, and transportation and biotechnology issues. The most striking observations m...

  16. Aspergillus bertholletius sp. nov. from Brazil Nuts

    OpenAIRE

    Taniwaki, Marta H.; Pitt, John I.; Iamanaka, Beatriz T.; Sartori, Daniele; Copetti, Marina V.; Balajee, Arun; Fungaro, Maria Helena P.; Frisvad, Jens Christian

    2012-01-01

    During a study on the mycobiota of brazil nuts (Bertholletia excelsa) in Brazil, a new Aspergillus species, A. bertholletius, was found, and is described here. A polyphasic approach was applied using morphological characters, extrolite data as well as partial beta-tubulin, calmodulin and ITS sequences to characterize this taxon. A. bertholletius is represented by nineteen isolates from samples of brazil nuts at various stages of production and soil close to Bertholletia excelsa trees. The fol...

  17. Brazil's Economy:Too Hot

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    @@ Brazil has a lot to be proud of.A decade of faster growth and progressive social policies has brought a prosperity that is ever more widely shared.The unemployment rate for April, at 6.4%, is the lowest on record.Credit is booming, particularly to the swelling numbers who have moved out of poverty and into the middle class.Income inequality, though still high, has fallen sharply.For most Brazilians life has never been so good.

  18. Spherical tokamak development in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Ludwig, Gerson Otto; Bosco, Edson Del; Ferreira, Julio Guimaraes [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil). Lab. Associado de Plasma] (and others)

    2003-07-01

    The general characteristics of spherical tokamaks, or spherical tori, with a brief view of work in this area already performed or in progress at several institutions worldwide are described. The paper presents also the steps in the development of the ETE (Experiment Tokamak spheric) project, its research program, technical characteristics and operating conditions as of December, 2002 a the Associated Plasma Laboratory (LAP) of the National Space Research Institute (INPE) in Brazil. (author)

  19. State Government Bailouts in Brazil

    OpenAIRE

    Bevilaqua, Afonso S.

    2002-01-01

    As a result of the consolidation of democracy after the end of the military regime in the mid-1980s, Brazil has gone through a period of remarkable decentralization both in fiscal and political terms. The move towards decentralized management and control of public finances has been followed by a series of bailouts of state governments by the federal government. The lack of effective control on borrowing, coupled with reputational effects originating from these repeated bailout operations, red...

  20. Spherical tokamak development in Brazil

    International Nuclear Information System (INIS)

    The general characteristics of spherical tokamaks, or spherical tori, with a brief view of work in this area already performed or in progress at several institutions worldwide are described. The paper presents also the steps in the development of the ETE (Experiment Tokamak spheric) project, its research program, technical characteristics and operating conditions as of December, 2002 a the Associated Plasma Laboratory (LAP) of the National Space Research Institute (INPE) in Brazil. (author)

  1. Brazil: Mechanisms of Direct Democracy

    OpenAIRE

    Bovo, Raquel

    2008-01-01

    In the structure of Brazilian Government, regarding both the executive as well as the executive powers, the increase in ways in which society can participate in decisions of public interest, stands out. Among the shared or participatory managerial policies implemented in Brazil, the following are noteworthy: the participatory budget, managerial councils, committees dealing with watersheds, thematic conferences, plebiscites, public meetings and referenda. However, if compared to the size of Br...

  2. Tuberculose bovina no Estado da Paraíba: estudo retrospectivo Bovine tuberculosis in the state of Paraíba: retrospective survey

    Directory of Open Access Journals (Sweden)

    Salomão M. Figueiredo

    2010-09-01

    Full Text Available O objetivo do presente trabalho foi determinar a frequência de propriedades positivas (focos e de animais positivos para a tuberculose bovina no Estado da Paraíba. Foram utilizados dados da Agência de Defesa Agropecuária do Estado, coletados de suas 23 microrregiões, durante o período de janeiro de 2008 a julho de 2009. Durante esse período, foram examinadas 10.963 propriedades e 54.472 bovinos foram submetidos ao teste de tuberculinização. Para o diagnóstico foi utilizada, como prova de triagem, a tuberculinização cervical simples para gado de leite e a tuberculinização na prega caudal para gado de corte; como prova confirmatória foi utilizada a tuberculinização cervical comparativa. Uma propriedade foi considerada foco quando apresentou pelo menos um animal soropositivo. Das propriedades investigadas, 62 (0,57% apresentaram pelo menos um animal positivo e dos animais analisados, 136 (0,25% foram positivos. Houve diferença significativa (pThe aim of this study was to determine the frequency of positive herds (foci and positive animals for bovine tuberculosis in the state of Paraíba, Northeast region of Brazil. Data from the Agency of Agricultural Protection in the state, collected from its 23 microregions, during the January 2008 to July 2009 period, were used. During this period, 10,963 herds were examined and 54,472 cattle were submitted to the tuberculin test. For diagnosis the cervical and caudal-fold tuberculin tests were used as screening tests in dairy and beef cattle, respectively; as confirmatory test, comparative cervical test was used. A herd was considered focus when presented at least one positive animal. Of the herds investigated, 62 (0.57% had at least one positive animal, and of the animals examined, 136 (0.25% were positive. There was significant difference (p<0.001 in the proportion of positivity for females (0.32% and males (0.04%. Despite low frequency of foci of brucellosis and seropositive animals, it is

  3. Brazil-Africa geological links

    Science.gov (United States)

    Torquato, Joaquim Raul; Cordani, Umberto G.

    1981-04-01

    In this work, the main evidence and conclusions regarding geological links between Brazil and Africa are summarized, with emphasis on the geochronological aspects. Taking into account the geographical position, as well as the similarities in the geochronological pattern, the following main provinces of the two continents are correlated: The Imataca and Falawatra complexes in the Guayana Shield and the Liberian Province of West Africa. The Paraguay-Araguaia and the Rockelide Fold Belts. The Sa˜o Luiz and the West African cratonic areas. The Caririan Fold Belt of northeastern Brazil and the Pan-Africa Belt of Nigeria and Cameroon. The JequiéComplex of Bahia, the Ntem Complex of Cameroon and similar rocks of Gabon and Angola. The Ribeira Fold Belt in Brazil and the West Congo and Damara Belts in West and South Africa. In addition, other geological links are considered, such as some of the major linear fault zones which can be traced across the margins of South America and Africa, in the pre-drift reconstructions. Correlations are also made of the tectonic and stratigraphic evolution of the Paranáand Karroo syneclises, and the Brazilian and African marginal basins around the South Atlantic, during their initial stages. Finally, several similarities in the tectonic evolution of South America and Africa, during and after the onset of drifting, are shown to be compatible with a recent origin for the South Atlantic floor, as required by sea-floor spreading and continental drift between South America and Africa.

  4. Decentralization and REDD+ in Brazil

    Directory of Open Access Journals (Sweden)

    Fabiano Toni

    2011-01-01

    Full Text Available Recent discussions on REDD+ (Reducing Emissions from Deforestation and Forest Degradation, plus conservation, sustainable management of forests and enhancement of forest carbon stocks have raised optimism about reducing carbon emissions and deforestation in tropical countries. If approved under the United Nations Framework Convention on Climate Change (UNFCCC, REDD+ mechanisms may generate a substantial influx of financial resources to developing countries. Some authors argue that this money could reverse the ongoing process of decentralization of forest policies that has spread through a large number of developing countries in the past two decades. Central states will be accountable for REDD+ money, and may be compelled to control and keep a significant share of REDD+ funds. Supporters of decentralization argue that centralized implementation of REDD+ will be ineffective and inefficient. In this paper, I examine the relation between subnational governments and REDD+ in Brazil. Data show that some state governments in the Brazilian Amazon have played a key role in creating protected areas (PAs after 2003, which helped decrease deforestation rates. Governors have different stimuli for creating PAs. Some respond to the needs of their political constituency; others have expectations to boost the forest sector so as to increase fiscal revenues. Governors also have led the discussion on REDD+ in Brazil since 2008. Considering their interests and political power, REDD+ is unlikely to curb decentralization in Brazil.

  5. An AIDS campaign in Brazil.

    Science.gov (United States)

    Janoff, D

    1987-01-01

    The Acquired Immune Deficiency Syndrome (AIDS) distribution program in Brazil, spearheaded by the National Division of Sanitary Surveillance in Ports, Airports, and Borders, was part of the government's massive education campaign to prevent the transmission of HIV-AIDS in Brazil. Beginning in February 1987, the climate was sufficiently favorable to operate a coordinated information campaign during the Carnival celebration, and tourists arriving in the cities of Brazil for the annual Carnival celebration were handed an educational brochure in Portugese, Spanish, English, and French. Yet, beyond reaching the tourist populations, it is particularly important to reach large portions of the Brazilian population. Planners of the national AIDS campaign intend to use television, radio, and all major newspapers in their effort to cover the country. Initial television coverage is comprised of short informational messages directed at high-risk groups. There also are plans to use radio and the print media in order to reach a wider audience. It is estimated that US $6 million will be needed to adequately meet the costs of AIDS prevention and medical care, but due to extreme budget constraints, only $45,000 has been earmarked for ongoing AIDS activities at this time. PMID:12281284

  6. CHARACTERISTICS OF BACTERIOCIN BA28 PRODUCED BY Pediococcus acidilactici BA28

    Directory of Open Access Journals (Sweden)

    Kaur Baljinder

    2013-01-01

    Full Text Available Peptic ulcers are produced by an imbalance between gastro-duodenal mucosal defense mechanisms and damaging forces of gastric acid and pepsin, combined with superimposed injury from environmental or immunologic agents. Most common symptoms of peptic ulcer disease are abdominal discomfort, gnawing ache, occurs 2 to 3 hours after meal, other symptoms includes weight loss, poor appetite, bloating, nausea, vomiting etc. Some time duodenal wall perforates; bleeding due to the ulcer breaks blood vessels and obstructs the path of food trying to leave the stomach. Various studies have shown the association of Helicobacter pylori with peptic ulcers. Probiotic lactic acid bacteria are proposed to cure peptic ulcers by reducing colonization of H. pylori with stomach wall and by eradicating already established infection. A bacteriocin producing probiotic strain of P. acidilactici BA28 was evaluated for its antimicrobial activity against a number of Gram-positive and Gram-negative pathogens. Bacteriocin BA28 was partially purificated and characterized following in vitro assays. Preliminary investigations against H. plyori have suggested its effectiveness against peptic ulcer disease and therefore could be exploited to develop novel therapeutics.

  7. PERCEPTION OF UNDERGRADUATE ACCOUNTANCY STUDENTS IN SALVADOR (BA ABOUT RELEVANT ACCOUNTING THEORY CONCEPTS

    Directory of Open Access Journals (Sweden)

    Adriano Leal Bruni

    2012-06-01

    Full Text Available Mastering basic Accountancy concepts appropriately and analyzing their characteristics are essential for the development of Accounting Theory. The financial decision making process requires knowledge on adequate economic values, which Accounting users are increasingly demanding. The aim of this research was to ascertain the understanding of some terms explored in the context of the subject Accounting Theory, such as assets, liabilities, goodwill, revenues, expenses, gains and losses. A sample was investigated, comprising 591 students enrolled in Accountancy programs who had already taken the subject Accounting Theory at higher education institutions (HEI located in the city of Salvador (BA, Brazil. Logistic regression analysis of the results indicates that the relation between student performance and the teacher’s degree is more significant than the relation between student performance and type of HEI. In general, however, superficial concepts on the topics addressed in this study were cited at all levels. The results generally disclosed errors in the understanding of relevant accounting concepts for students’ education, mainly reflecting an outdated, or at least conservative view. When compared per type of education institution, the results indicate that students from public institutions better master the concepts considered in this study. The understanding improves further when the teacher’s degree evolves from specialist to M.Sc. and Ph.D.

  8. Anti-Leptospira spp. antibodies in captive animals in Paraíba State

    Directory of Open Access Journals (Sweden)

    Arthur Brasil

    2013-12-01

    Full Text Available The aim of this survey was to verify the occurrence of anti-Leptospira spp. antibodies in captive animals in the Parque Zoobotânico Arruda Câmara, João Pessoa, Paraíba State, Northeastern Brazil. Blood samples were collected from 49 animals: 26 mammals of the species Sapajus libidinosus, Cebus flavius, Saimiri sciureu, Coendu sp., Pseudalopex vetulus, Leopardus pardalis, Leopardus tigrinus, Galactitis vitata, Eira barbara, Nasua nasua, Tayassu tajacu and Ratus norvegicus; 10 birds of the species Penelope jacucaca, Pavo cristatus, Anodorhynchus hyacinthinus, Ara chlorothpterus, Pionites leucogaster, Polyborus plancus, Geranoaetus melanoleucus and Urubitinga urubitinga; and 13 reptiles of the species Caiman latirostris, Paleosuchus trigonatus, Caiman crocodilus, Tupinabis merinae, Tupinambis teguixin, Boa constrictor, Corallus hortulanus, Python molurus, Bufocephala vanderhaegei, Geochelone denticulata and Geochelone carboraria. Sera were examined by the microscopic agglutination teste (MAT using 24 serovars as antigens and cut-off point of 1:100. One ocelot (Leopardo pardalis presented positive reaction for the Icterohaemorrhagiae serovar with titer of 100, however, it did not show any clinical sign of the infection. Sinantropic rodents are the main reservoirs of this serovar, which suggests the need of maintenance and continuous evaluation of rodent control programs.

  9. Accidents caused by Bothrops and Bothropoides in the State of Paraiba: epidemiological and clinical aspects Acidentes causados por serpentes dos gêneros Bothrops e Bothropoides no Estado da Paraíba: aspectos clínicos e epidemiológicos

    OpenAIRE

    Fagner Neves Oliveira; Monalisa Taveira Brito; Isabel Cristina Oliveira de Morais; Sayonara Maria Lia Fook; Helder Neves de Albuquerque

    2010-01-01

    INTRODUCTION: Bothrops and Bothropoides snakes cause 70% of the ophidic accidents in Brazil. The species that cause ophidic accidents in State of Paraíba are Bothropoides erythromelas, Bothrops leucurus and Bothropoides neuwiedi. METHODS: This is a prospective and transverse study, following a quantitative approach of accidents involving Bothrops and Bothropoides admitted to the Toxicological Assistance and Information Centers of Campina Grande and João Pessoa (Ceatox-CG and Ceatox-JP), aimed...

  10. Receptor models for source apportionment of remote aerosols in Brazil

    International Nuclear Information System (INIS)

    The PIXE (particle induced X-ray emission), and PESA (proton elastic scattering analysis) method were used in conjunction with receptor models for source apportionment of remote aerosols in Brazil. The PIXE used in the determination of concentration for elements with Z >- 11, has a detection limit of about 1 ng/m3. The concentrations of carbon, nitrogen and oxygen in the fine fraction of Amazon Basin aerosols was measured by PESA. We sampled in Jureia (SP), Fernando de Noronha, Arembepe (BA), Firminopolis (GO), Itaberai (GO) and Amazon Basin. For collecting the airbone particles we used cascade impactors, stacked filter units, and streaker samplers. Three receptor models were used: chemical mass balance, stepwise multiple regression analysis and principal factor analysis. The elemental and gravimetric concentrations were explained by the models within the experimental errors. Three sources of aerosol were quantitatively distinguished: marine aerosol, soil dust and aerosols related to forests. The emission of aerosols by vegetation is very clear for all the sampling sites. In Amazon Basin and Jureia it is the major source, responsible for 60 to 80% of airborne concentrations. (Author)

  11. Contrast study on CT and BA in cerebral hemorrhage due to hypertension%CONTRAST STUDY ON CT AND BA IN CEREBRAL HEMORRHAGE DUE TO HYPERTENSION

    Institute of Scientific and Technical Information of China (English)

    Mingshun Liu; Guoqiu Wang; Po Ma

    2007-01-01

    Objectives:To explore contrast application on CT and BA in cerebral hemorrhage due to hypertension. Methods: CT and BA were examined in 106 patients with cerebral hemorrhage due to hypertension. Results:The different changes of CT and BA were showed in 106 patients with cerebral hemorrhage due to hypertension. Conclusions: There were separately different advantage and shortcoming in CT and BA in diagnosis of cerebral hemorrhage due to hypertension. The value of clinical application of BA was important in cerebral hemorrhage due to hypertension.

  12. An approach to WWER fuels with BaCo

    International Nuclear Information System (INIS)

    BaCo is a code for the simulation of the behaviour of a nuclear fuel rod under operation conditions. BaCo, a quasi 2D code based on a finite differences scheme, has been used for simulating PHWR, CANDU, PWR, BWR, MOX, WWER, and experimental fuel rods. We improve the performance of BaCo with a set of tools based on the method of finite elements for 3D analysis of the stress-strain state. We can simulate any UO2 pellet geometry. Standard WWER-440 fuel assemblies irradiated in the Kola-3 reactor of the CRP FUMEX II of the IAEA were the first WWER simulations with BaCo. We find a very good agreement among our calculations, the experimental results and other qualified fuel codes. We present the BaCo code and our results for PWR and WWER fuels of the CRP FUMEX II, the 3D analysis of WWER fuel pellet and the projections of these results with the Argentinean nuclear fuels development. (authors)

  13. PREPARATION OF BaSO4 NANOCRYSTALS BY CONTROLLED PRECIPITATION

    Institute of Scientific and Technical Information of China (English)

    Junping Li; Yao Xu; Dong Wu; Yuhan Sun

    2003-01-01

    @@ Due to their size-dependent properties and flexible processing chemistry (Alivisatos, 1996), monodispersed nanocrystals have attracted considerable attention for their distinguished role in fundamental studies and technical applications. Although much has been reported on fabrication of monodispersed inorganic nanocrystals such as Fe2O3, CdSe, PbSe and ZrO2 (Peng & Peng, 2002;Zhu et al., 2002; Niederberger et al., 2002; Pang et al.,2001), little published on the preparation of BaSO4 nanocrystals and their crystal size and morphology which affect their performance in application. Polymer additives with complex functions have been used as templates to direct oriented nucleation and growth of BaSO4 (Xiao et al.,2001; Yu et al., 2002; Summers et al., 2002), as a new class of functional polymers, the so-called double-hydrophilic block copolymers, designed to control the morphology of BaSO4 (Colfen et al., 2002), including their nanofibers synthesized in AOT microemulsion (Li & Mann,2000). Though so much research has been devoted to controlling the BaSO4 morphologies, the present note will report on the synthesis of BaSO4 nanocrystals with size controlling.

  14. Thermochemical study of the molecule BaC2

    International Nuclear Information System (INIS)

    The enthalpy of the reaction Ba(g)+2C(graph.) = BaC2(g) has been determined by Knudsen effusion mass spectrometry over a barium alloy with noble metals contained in a graphite cell. The value ΔH/sup circle-open/0 = 252.5 +- 11.5kJ mol-1 has been obtained from second- and third-law evaluations of the equilibrium vapor in the temperature range 1778--2286 K. This reaction enthalpy has been combined with ancillary literature data to derive the following thermodynamic properties in kJ mol-1 of gaseous BaC2: the atomization energy, Δ/sub at/H/sup circle-open/0 , 1180.9 +- 12.2; the standard heat of formation, Δ/sub f/H/sup circle-open/298 , 437.1 +- 14.2; the enthalpy of sublimation of BaC2(s), Δ/sub sub/H/sup circle-open/298 , 511.2 +- 17.1; and the bond dissociation energy, D/sup circle-open/0 (Ba--C2), 581.7 +- 14.8. The results are discussed with regard to their possible significance in reactor technology

  15. Radioactive contamination of BaF2 crystal scintillator

    Directory of Open Access Journals (Sweden)

    Belli P.

    2014-01-01

    Full Text Available Barium fluoride (BaF2 crystal scintillators are promising detectors to search for double beta decay processes in 130Ba (Q2β = 2619(3 keV and 132Ba (Q2β = 844(1 keV. The 130Ba isotope is of particular interest because of the indications on 2β decay found in two geochemical experiments. The radioactive contamination of BaF2 scintillation crystal with mass of 1.714 kg was measured over 113.4 hours in a low-background DAMA/R&D set-up deep underground (3600 m w.e. at the Gran Sasso National Laboratories of INFN (LNGS, Italy. The half-life of 212Po (present in the crystal scintillator due to contamination by radium was estimated as T1/2 = 298.8 ± 0.8(stat. ± 1.4(syst. ns by analysis of the events pulse profiles.

  16. Brazil = Brasil. America = Las Americas [Series].

    Science.gov (United States)

    Toro, Leonor; And Others

    Written for teachers to use with migrant children in elementary grades, this bilingual English/Spanish social studies resource booklet provides an encyclopedia-style overview of Brazil's history, geography, economy, and culture. Topics include Brazil's form of government; geographic regions; holidays; climate; people; music; carnaval celebration;…

  17. History of nuclear power in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Rosa, L.P.

    2006-07-15

    The 1973 energy crisis prompted the United States to suspend supplies of enriched uranium to the reactor being built in Brazil, Angra I. In 1975, the Brazil-Germany Nuclear Agreement was announced. The Programme was a failure. Today the Angra II nuclear reactor has been completed, the only reactor completed under the agreement with Germany. Brazil's last military President implemented the Parallel Nuclear Programme, which included uranium enrichment with the justification of developing the technology that had not been transferred through the Nuclear Agreement with Germany. In 1986, the existence of a deep shaft drilled by the Air Force was revealed. A Technical Report concluded that it had all the characteristics and dimensions required to test a nuclear bomb. Some years later, the Civilian Government acknowledged the existence of an underground nuclear explosion facility and symbolically sealed this shaft. The situation in Brazil has improved recently. Brazil ratified the Treaty of Tlatelolco on the denuclearisation of Latin America and established ABACC, an agency handling mutual inspections of nuclear facilities in Brazil and Argentina. Brazil also signed the Nuclear Weapons Non-Proliferation Treaty. The uranium enrichment activities are being transferred to a civilian industry. More importantly, I do not believe that the uranium enrichment project is intended to endow Brazil with the capacity to produce nuclear weapons. (author)

  18. Brazil Low Carbon Case Study : Waste

    OpenAIRE

    World Bank

    2010-01-01

    This report synthesis the findings for the waste sector of a broader study, the Brazil low carbon study, which was undertaken by the World Bank in its initiative to support Brazil's integrated effort towards reducing national and global emissions of Greenhouse Gases (GHG) while promoting long term development. The purpose of the present report is to assist in the preparation of public poli...

  19. Rainfall erosivity in Brazil: A Review

    Science.gov (United States)

    In this paper, we review the erosivity studies conducted in Brazil to verify the quality and representativeness of the results generated and to provide a greater understanding of the rainfall erosivity (R-factor) in Brazil. We searched the ISI Web of Science, Scopus, SciELO, and Google Scholar datab...

  20. Inequality and Economic Development in Brazil

    OpenAIRE

    World Bank

    2004-01-01

    This study addresses three questions : why do inequalities matter for Brazil's development? Why does Brazil occupy a position of very high inequality in the international community? And, What should public policy do about it? Excessive income inequality is unfair, and undesirable on ethical grounds, and can bring adverse effects on economic growth, health outcomes, social cohesion, and cri...

  1. An overview on small hydro in Brazil

    International Nuclear Information System (INIS)

    An overview of small-scale hydro development in Brazil was presented in the context of the Brazilian energy sector. Brazil's energy sector is currently comprised of 45 per cent renewable energy. Brazil is the tenth largest energy producer in the world, with an installed capacity of 105.986 MW. Brazil currently has an estimated 258.410 MW of hydroelectric power potential. Small hydropower (SHP) plants in Brazil are defined as plants capable of producing up to 30 MW of power, with a reservoir area smaller than 12 km2. It is estimated that SHP plants will provide 5 per cent of Brazil's electrical supply by 2030. SHP plants in Brazil typically use Kaplan and Pelton hydraulic turbines, as well as Michell-Banki cross-flow turbines. Hydrokinetic turbine prototypes are also being designed at the Federal University of Brazil. Researchers are currently developing a diffuser enhancement design. However, there are currently no designs available that use peripheric generators. Researchers are currently investigating the design of fish-friendly turbines as well as mobile dams. Development projects in the Amazon region were outlined. tabs., figs.

  2. Brazil Low Carbon Case Study : Transport

    OpenAIRE

    World Bank

    2011-01-01

    This report summarizes the results for the transportation sector from a larger study, the low carbon study for Brazil, developed by the World Bank as part of its initiative to support the integrated efforts of Brazil to reduce global and national greenhouse gases emissions, while promoting long-term development. The study covers four key areas with potential low carbon options: 1) Land Use...

  3. Left posterior BA37 is involved in object recognition: a TMS study

    DEFF Research Database (Denmark)

    Stewart, Lauren; Meyer, Bernd-Ulrich; Frith, Uta;

    2001-01-01

    . Four conditions were investigated: word and nonword reading, colour naming and picture naming. Repetitive transcranial magnetic stimulation (rTMS) was delivered over posterior BA37 of the left and right hemispheres (lBA37 and rBA37, respectively) and over the vertex. divisions were significantly slower...... to name pictures when TMS was given over lBA37 compared to vertex or rBA37. rTMS over lBA37 had no significant effect on word reading, nonword reading or colour naming. The picture naming deficit is suggested to result from a disruption to object recognition processes. This study corroborates the...

  4. Synthesis of BaTiO3 nanoparticles from TiO2-coated BaCO3 particles derived using a wet-chemical method

    Directory of Open Access Journals (Sweden)

    Yuuki Mochizuki

    2014-03-01

    Full Text Available BaCO3 particles coated with amorphous TiO2 precursor are prepared by a wet chemical method to produce BaTiO3 nanoparticles at low temperatures. Subsequently, we investigate the formation behavior of BaTiO3 particles and the particle growth behavior when the precursor is subjected to heat treatment. The state of the amorphous TiO2 coating on the surface of BaCO3 particles depends on the concentration of NH4HCO3, and the optimum concentration is found to be in the range 0.5–1.0 M. Thermogravimetric curves of the BaCO3 particles coated with the TiO2 precursor, prepared from BaCO3 particles of various sizes, show BaTiO3 formation occurring mainly at 550–650 °C in the case of fine BaCO3 particles. However, as evidenced from the curves, the temperature of formation of BaTiO3 shifts to higher values with an increase in the size of the BaCO3 particles. The average particle size of single phase BaTiO3 at heat-treatment temperature of 650–900 °C is observed to be in the range 60–250 nm.

  5. Activity Enhancement of Pt/Ba/Al2O3 Mixed with Mn/Ba/Al2O3 for NOx Storage-reduction by Hydrogen

    Institute of Scientific and Technical Information of China (English)

    Jian Hua XIAO; Xue Hui LI; Sha DENG; Fu Rong WANG; Le Fu WANG

    2006-01-01

    Mn/Ba/Al2O3 catalyst for NO oxidation-storage and Pt/Ba/Al2O3 catalyst mixed with Mn/Ba/Al2O3 for NOx storage-reduction by hydrogen were investigated. The results showed that Mn/Ba/Al2O3 had large nitrogen oxides storage capacity (397.9 μmolg-1) under lean bum condition.When Pt/Ba/Al2O3 catalyst was mixed with Mn/Ba/Al2O3 in equal weight proportion, the NOx conversion increased between 250 ℃ and 500 ℃ under the dynamic lean-rich bum conditions, and the maximum NOx conversion increased from 95.4% to 98.2%. Mn/Ba/Al2O3 has promoted NOx storing in the lean stage and improved NOx reduction efficiency in the rich stage, these might result in higher NOx conversion over the low Pt loading content catalyst.

  6. Stellar laboratories III. New Ba V, Ba VI, and Ba VII oscillator strengths and the barium abundance in the hot white dwarfs G191-B2B and RE0503-289

    CERN Document Server

    Rauch, T; Quinet, P; Kruk, J W

    2014-01-01

    For the spectral analysis of high-resolution and high-signal-to-noise (S/N) spectra of hot stars, state-of-the-art non-local thermodynamic equilibrium (NLTE) model atmospheres are mandatory. These are strongly dependent on the reliability of the atomic data that is used for their calculation. Reliable Ba V - VII oscillator strengths are used to identify Ba lines in the spectra of the DA-type white dwarf G191-B2B and the DO-type white dwarf RE0503-289 and to determine their photospheric Ba abundances. We newly calculated Ba V - VII oscillator strengths to consider their radiative and collisional bound-bound transitions in detail in our NLTE stellar-atmosphere models for the analysis of Ba lines exhibited in high-resolution and high-S/N UV observations of G191-B2B and RE0503-289. For the first time, we identified highly ionized Ba in the spectra of hot white dwarfs. We detected Ba VI and Ba VII lines in the Far Ultraviolet Spectroscopic Explorer (FUSE) spectrum of RE0503-289. The Ba VI / Ba VII ionization equil...

  7. The ethanol program in Brazil

    Science.gov (United States)

    Goldemberg, José

    2006-10-01

    The number of automobiles in the world has been growing fast and today requires one quarter of the global petroleum consumption. This problem requires adequate solutions, one of which Brazil has achieved with the Sugarcane Ethanol Program. This paper presents the history of this program, from its launch in the 1970s to the today's condition of full competitiveness in a free market. It also shows how it can be replicated to other countries, in order to replace 10 per cent of the world's gasoline consumption.

  8. Geodiversity and geoconservation in Brazil

    Science.gov (United States)

    Cardozo Moreira, Jasmine; Muggler, Cristine Carole

    2014-05-01

    Brazil is a large country with a wide diversity of landscapes and geological features and has been an important world producer of mineral resources. Despite this, until the 90's of last century, there has not been much concern and policies about geological heritage and geoconservation. Only at the end of the century the National Geological Service (CPRM) included the physical characterization of areas with geotouristic interest in its mission of generation and diffusion of geological information. In 1997, was created the Brazilian Commission of Geological and Paleobiological Sites (SIGEP, http://sigep.cprm.gov.br), responsible for the assessment, description and publicizing the sites of geological heritage. This is by now the most comprehensive and relevant initiative to protect the national heritage. It is composed by a fully accessible national database composed by 167 certified sites presented as scientific papers. Furthermore, a web-based applicative for the inventory and protection of geological heritage sites is being developed by the National Geological Service. The wider knowledge about geological heritage can be a useful tool for its conservation and this has been an important goal in the creation of protected areas, by means of environmental education and tourism. In Brazil, actions, research and publications about the subject have increased in the last five years, as well as the outreach and responsible use of the geological heritage. Scientific meetings, conferences and courses are growing and spreading around the country. The main scientific meeting has been the Brazilian Symposium of Geological Heritage that in its second edition (2013) had more than 200 papers presented. At that meeting it was also created the Association in Defence of the Geomining Heritage and the Association of Aspiring Geoparks. Brazil has only one geopark in the Unesco's Global Geopark Network, that is the Araripe Geopark, created in 2006. By the moment, propositions are being

  9. Thin film hybrid Josephson junctions with Co doped Ba-122

    International Nuclear Information System (INIS)

    Josephson junctions are a strong tool to investigate fundamental superconducting properties, such as gap behaviour, dependencies from external fields and the order parameter symmetry. Finding secure values enables the possibility of theoretical descriptions to understand the physical processes within the new iron-based superconductors. Based on Co-doped BaFe2As2 (Ba-122) layers produced via pulsed laser deposition (PLD) on (La,Sr)(Al,Ta)O3 substrates, we manufactured superconductor-normal conductor-superconductor (S-N-S) junctions structures by using photolithography, ion beam etching as well as insulating SiO2 layers. We present working Ba-122/Au/PbIn thin film Josephson junctions with different contact areas and barrier thicknesses, their temperature dependence and response to microwave irradiation. The calculated IcRN product is in the range of a couple of microvolts.

  10. BaH molecular spectroscopy with relevance to laser cooling

    Science.gov (United States)

    Tarallo, M. G.; Iwata, G. Z.; Zelevinsky, T.

    2016-03-01

    We describe a simple experimental apparatus for laser ablation of barium monohydride (BaH) molecules and the study of their rovibrational spectra relevant to direct laser cooling. BaH is a promising candidate for laser cooling and ultracold fragmentation, both of which are precursors to novel experiments in many-body physics and precision measurement. We present a detailed analysis of the properties of ablation plumes that can improve the understanding of surface ablation and deposition technologies. A range of absorption spectroscopy and collisional thermalization regimes has been studied. We directly measured the Franck-Condon factor of the B 2Σ+(v'=0 ) ←X 2Σ+(v''=1 ) cycling transition. Prospects for production of a high luminosity cryogenic BaH beam are outlined.

  11. Processing of R-Ba-Cu-O superconductors

    Energy Technology Data Exchange (ETDEWEB)

    Wu, H.

    1998-02-23

    Precipitation processes were developed to introduce second phases as flux pinning centers in Gd-Ba-Cu-O and Nd-Ba-Cu-O superconductors. In Gd-Ba-Cu-O, precipitation is caused by the decrease of the upper solubility limit of Gd{sub 1+x}Ba{sub 2{minus}x}Cu{sub 3}O{sub 7} solid solution (Gd123ss) in low oxygen partial pressure. Processing of supersaturated Gd{sub 1.2}Ba{sub 1.8}Cu{sub 3}O{sub 7} in low oxygen partial pressure can produce dispersed second phases. Gd211 is formed as a separate phase while extensive Gd124 type stacking fault is formed instead of a separate CuO phase. As a result of the precipitation reaction, the transition temperature and critical current density are increased. In Nd-Ba-Cu-O, precipitation is caused by the decrease of the lower solubility limit of Nd{sub 1+x}Ba{sub 2{minus}x}Cu{sub 3}O{sub 7} solid solution (Nd123ss) in oxygen. DTA results reveal the relative stability of Nd123ss in different oxygen partial pressures. In 1 bar oxygen partial pressure, Nd123ss with x = 0.1 is the most stable phase. In lower oxygen partial pressures, the most stable composition shifts towards the stoichiometric composition. The relative stability changes faster with decreasing oxygen partial pressure. Therefore, processing in oxygen and air tends to produce broad superconducting transitions but sharp transitions can be achieved in 0.01 bar and 0.001 bar oxygen partial pressures. While the lower solubility limits in 0.01 bar and 0.001 bar oxygen partial pressures remain at x = 0.00, the solubility limits in oxygen and air show a narrowing with decreasing temperature. Because of the narrowing of the solubility range in oxygen, oxygen annealing of Nd123 initially processed in low oxygen partial pressures will result in precipitation of second phases. The equilibrium second phase is BaCuO{sub 2} for temperature above 608 C, and at lower temperatures the equilibrium second phases are Ba{sub 2}CuO{sub 3.3} and Ba{sub 2}Cu{sub 3}O{sub 5+y}. However, annealing at

  12. Thermoelectric properties of Ni-doped BaSi2

    Science.gov (United States)

    Xu, Yidong; Wu, Yixuan; Chen, Zhiwei; Shen, Wenjia; Jian, Zhengzhong; Lin, Siqi; Li, Juan; Li, Wen; Pei, Yanzhong

    2016-01-01

    BaSi2 has been known as a wide gap semiconductor with an intrinsic low lattice thermal conductivity, therefore may be a promising environmental friendly thermoelectric (TE) material with abundant constituent elements. In this work, NixBa1-xSi2 compounds with 0≤x≤0.3 are synthesized by arc melting. The resistivity, thermal conductivity and Seebeck coefficient are measured in the temperature range of 300-850K. The resistivity of the undoped BaSi2 is as high as 480mOhmṡcm at room temperature. Through Ni-doping, both resistivity and the Seebeck coefficient decrease dramatically. Meanwhile, the total thermal conductivity has no apparent difference due to Ni-doping. The lattice thermal conductivity decreases with increasing temperature monotonously to be lower than 1W/mṡK at high temperatures.

  13. BaCo2(AsO42

    Directory of Open Access Journals (Sweden)

    Tamara Đordević

    2008-09-01

    Full Text Available Suitable single crystals of the title compound, barium dicobalt(II bis[orthoarsenate(V], were prepared under hydrothermal conditions. This phase belongs to a series of compounds with general formula AM2(XO42, where A = alkaline earth metal, M = Mg or a divalent first-row transition element, and X = P, As or V. BaCo2(AsO42 is isotypic with BaNi2(XO42 (X = P, V or As and is characterized by brucite-like sheets of edge-sharing CoO6 octahedra (3 symmetry parallel to (001, with one-third of the octahedral positions being vacant. The sheets are capped above and below by AsO4 tetrahedra (3 symmetry and are interconnected by distorted BaO12 cuboctahedra (overline{3} symmetry.

  14. Dynamic moments of inertia in Xe, Cs and Ba nuclei

    International Nuclear Information System (INIS)

    The γ-rays following the reactions induced by 12C ions on 115In, 112Sn, 117Sn, 122Sn and 123Sb targets have been investigated using six NaI(Tl) detectors in a two-dimensional arrangement. The collective moment of inertia Isub(band)sup((2)) of 118Xe, 122Xe, 123Cs and 128Ba, 130Ba have been extracted from the energy-correlation spectra. The behaviour of these nuclei and the observed differences are interpreted in terms of high-spin collective properties. Data are also presented on the effective moment of inertia Isub(eff)sup((2)) of 118Xe and 130Ba measured by sum-spectrometer techniques

  15. AMiBA: Array for Microwave Background Anisotropy

    Science.gov (United States)

    Lo, K. Y.; Chiueh, T. H.; Martin, R. N.; Ng, Kin-Wang; Liang, H.; Pen, Ue-Li; Ma, Chung-Pei

    An Array for Microwave Background Anisotropy (AMiBA) is being built to measure the polarization of the CMB and to survey for high z clusters via the Sunyaev-Zeldovich effect (SZE). AMiBA is a platform mounted 19-element interferometer operating between 85 - 105 GHz, with full polarization capabilities. The aperture size of the elements can be changed between 0.3m and 1.2m, in order to provide a range of fields of view and l-resolution. The platform size is about 10-m so that the resolution can be as high as 1 arc-minute. The sensitivity can be as low as 2 mJy and 7 μK in an hour. The array is to be placed on Mauna Kea in Hawaii or in the Atacama desert in Chile, and is scheduled to be completed in 2003. The current status of AMiBA will be described.

  16. The BaBar instrumented flux return performance: lessons learned

    CERN Document Server

    Anulli, F; Baldini, R; Band, H R; Bionta, R; Brau, J E; Brigljevic, V; Buzzo, A; Calcaterra, A; Carpinelli, M; Cartaro, C; Cavallo, N; Crosetti, G; De Nardo, Gallieno; De Sangro, R; Eichenbaum, A; Fabozzi, F; Falciai, D; Ferrarotto, F; Ferroni, F; Finocchiaro, G; Forti, F; Frey, R; Gatto, C; Graug; Iakovlev, N I; Iwasaki, M; Johnson, J R; Lange, D J; Lista, L; Lo Vetere, M; Lü, C; Macri, M; Messner, R; Moore, T B; Morganti, S; Neal, H; Neri, N; Palano, A; Paoloni, E; Paolucci, P; Passaggio, S; Pastore, F C; Patteri, P; Peruzzi, I; Piccolo, D; Piccolo, M; Piredda, G; Robutti, E; Roodman, A; Santroni, A; Sciacca, C; Sinev, N B; Soha, A; Strom, D; Tosi, S; Vavra, J; Wisniewski, W J; Wright, D M; Xie, Y; Zallo, A

    2002-01-01

    The BaBar Collaboration has operated an instrumented flux return (IFR) system covering over 2000 m sup 2 with resistive plate chambers (RPCs) for nearly 3 years. The chambers are constructed of bakelite sheets separated by 2 mm. The inner surfaces are coated with linseed oil. This system provides muon and neutral hadron detection for BaBar. Installation and commissioning were completed in 1998, and operation began mid-year 1999. While initial performance of the system reached design, over time, a significant fraction of the RPCs demonstrated significant degradation, marked by increased currents and reduced efficiency. A coordinated effort of investigations have identified many of the elements responsible for the degradation. This article presents our current understanding of the aging process of the BaBar RPCs along with the action plan to combat performance degradation of the IFR system.

  17. Exotic decay in Ba isotopes via 12C emission

    Indian Academy of Sciences (India)

    K P Santhosh; Antony Joseph

    2000-09-01

    Considering Coulomb and proximity potentials as barriers, we have calculated the half lives for 12C emission from various Ba isotopes using different mass tables. The half life for 112Ba isotope calculated by us is 6.020 × 103 s which is comparable with the experimental value 5.620 × 103 s. From our study it is found that 114Ba is the good parent for 12C emission whose emission rate is favorable for measurement. The half lives predicted by us lie very close to those reported by Shanmugam et al using their cubic plus Yukawa plus exponential model. It is observed that inclusion of proximity potential does not produce significant deviation from the linear nature of the Geiger–Nuttall plots. Also it is found that the neutron excess in the parent nuclei slows down the exotic decay process.

  18. Preparation of Ba target with molecular plating method

    International Nuclear Information System (INIS)

    The thin films of Ba are prepared by electro-deposition from the isopropyl-HCl mixture with a platinum wire as anode and a stainless steel plate as cathode. The influence of current density and deposition time on deposition efficiency of barium is studied. The activities of 133Ba tracer are measured by a HPGe detector to determine the deposition yield of barium. The results show that uniform and adhering films of barium are obtained on stainless steel foils by molecular plating method, and the thickness of Ba films is 0.5-1.0 mg/cm2 under the conditions of the current density of 4-6 mA/cm2 and the deposition time of about 30 min

  19. Ba3GeS5 and Ba3InS4Cl: Interesting size effects originated from the tetrahedral anions

    International Nuclear Information System (INIS)

    Two new barium chalcogenides, Ba3GeS5 and Ba3InS4Cl, were synthesized by using high temperature solid-state reactions and their structures were determined by single-crystal X-ray diffraction technique. Despite the similar chemical formula, the structures of Ba3GeS5 and Ba3InS4Cl are subtly different due to the size effects originated from the tetrahedral anions. Ba3GeS5 crystallizes in the orthorhombic space group Pnma (no. 62) with cell parameters of a=12.0528(9) Å, b=9.5497(7) Å and c=8.5979(6) Å, while Ba3InS4Cl adopts a different tetragonal system (space group: I4/mcm, no. 140, a=b=8.3613(6) Å, c=14.3806(18) Å). The measured optical band gap of Ba3GeS5 is 3.0 eV, a little smaller than the value of 3.42 eV in Ba3InS4Cl. Theoretical calculations by Wien2k are provided as well in order to better understand these results. - Graphical abstract: The polyhedral structure view for Ba3GeS5 and Ba3InS4Cl in which Ba, S and Cl atoms are plotted in purple, red and green spheres. - Highlights: • Two new barium chalcogenides, Ba3GeS5 and Ba3InS4Cl, were synthesized from the BaCl2-flux reactions. • Their crystal structures feature discrete [MS4] tetrahedra which embody interesting size effects. • Both compounds exhibit a band gap around 3.0 eV. • They are thermally stable up to 1073 K

  20. Host genetic factors in American cutaneous leishmaniasis: a critical appraisal of studies conducted in an endemic area of Brazil

    Directory of Open Access Journals (Sweden)

    Léa Cristina Castellucci

    2014-06-01

    Full Text Available American cutaneous leishmaniasis (ACL is a vector-transmitted infectious disease with an estimated 1.5 million new cases per year. In Brazil, ACL represents a significant public health problem, with approximately 30,000 new reported cases annually, representing an incidence of 18.5 cases per 100,000 inhabitants. Corte de Pedra is in a region endemic for ACL in the state of Bahia (BA, northeastern Brazil, with 500-1,300 patients treated annually. Over the last decade, population and family-based candidate gene studies were conducted in Corte de Pedra, founded on previous knowledge from studies on mice and humans. Notwithstanding limitations related to sample size and power, these studies contribute important genetic biomarkers that identify novel pathways of disease pathogenesis and possible new therapeutic targets. The present paper is a narrative review about ACL immunogenetics in BA, highlighting in particular the interacting roles of the wound healing gene FLI1 with interleukin-6 and genes SMAD2 and SMAD3 of the transforming growth factor beta signalling pathway. This research highlights the need for well-powered genetic and functional studies on Leishmania braziliensis infection as essential to define and validate the role of host genes in determining resistance/susceptibility regarding this disease.

  1. High spin spectroscopy in 130,131Ba

    International Nuclear Information System (INIS)

    The high spin states in 130,131Ba has been populated in the fusion evaporation reaction 122Sn(13C,4n)130,131Ba at Ebeam = 65 MeV. The experiment was carried out at the 14-UD pelletron accelerator at IUAC, New Delhi, India, which delivered 13C beam on a ∼ 1.0 mg/cm2 thick 122Sn target with Au (6.7 mg/cm2) backing. The γ decay following the reaction was studied using an array consisting of fifteen Compton suppressed clover detectors of INGA (Indian National Gamma Array) placed at angle of 32°(3-covers), 57°(2-clovers), 90°(4-clovers), 123°(2-clovers), 148°(4-clovers) with respect to the beam direction. The data were collected when two or more clover fired. Data have been analyzed using software CANDLE, INGASORT and RADWARE. Symmetric and Asymmetric matrices have been constructed using 2-fold as well as 3-fold data. Cube has also been made for 3-fold data. The γ transitions belonging to various band structure were detected using an array of fifteen Clover Germanium detector. In extension to earlier work done by R. Ma et al to study 131 Ba and D. Bazzacco et al. to study 130 Ba some of new transitions has been placed in high spin states. A few transitions connecting two negative parity bands in 130Ba has been established. Spin and parity for a band has been calculated for first time in 131Ba. The said band is interpreted in term of multi-quasiparticle configuration, based on Total Routhian Surface (TRS) calculation (author)

  2. New insights into the application of the valence rules in Zintl phases-Crystal and electronic structures of Ba7Ga4P9, Ba7Ga4As9, Ba7Al4Sb9, Ba6CaAl4Sb9, and Ba6CaGa4Sb9

    Science.gov (United States)

    He, Hua; Stoyko, Stanislav; Bobev, Svilen

    2016-04-01

    Crystals of three new ternary pnictides-Ba7Al4Sb9, Ba7Ga4P9, and Ba7Ga4As9 have been prepared by reactions of the respective elements in molten Al or Pb fluxes. Single-crystal X-ray diffraction studies reveal that the three phases are isotypic, crystallizing in the orthorhombic Ba7Ga4Sb9-type structure (space group Pmmn, Pearson symbol oP40, Z=2), for which only the prototype is known. The structure is based on TrPn4 tetrahedra (Tr=Al, Ga; Pn=P, As, Sb), connected in an intricate scheme into 1D-ribbons. Long interchain Pn-Pn bonds (dP-P>3.0 Å; dAs-As>3.1 Å; dSb-Sb>3.3 Å) account for the realization of 2D-layers, separated by Ba2+ cations. Applying the classic valance rules to rationalize the bonding apparently fails, and Ba7Ga4Sb9 has long been known as a metallic Zintl phase. Earlier theoretical calculations, both empirical and ab-initio, suggest that the possible metallic properties originate from filled anti-bonding Pn-Pn states, and the special roles of the "cations" in this crystal structure. To experimentally probe this hypothesis, we sought to synthesize the ordered quaternary phases Ba6CaTr4Sb9 (Tr=Al, Ga). Single-crystal X-ray diffraction work confirms Ba6.145(3)Ca0.855Al4Sb9 and Ba6.235(3)Ca0.765Ga4Sb9, with Ca atoms preferably substituting Ba on one of the three available sites. The nuances of the five crystal structures are discussed, and the chemical bonding in Ba7Ga4As9 is interrogated by tight-binding linear muffin-tin orbital calculations.

  3. The Danish Microbiology Database (MiBa) 2010 to 2013

    DEFF Research Database (Denmark)

    Voldstedlund, M; Haarh, M; Mølbak, K; Lundgren, Bettina; Andersen, Christian Østergaard; Jarløv, Jens Otto; Hansen, Dennis Schrøder; Schønheyder, Henrik Carl; Jensen, Thøger Gorm; Dessau, Ram; Møller, Jens K.; Ellermann-Eriksen, Svend; Lomborg, Steen; Prag, Jørgen Brorson; Kjældgaard, Poul; Truberg, Kjeld; Hoffmann, Steen

    2014-01-01

    The Danish Microbiology Database (MiBa) is a national database that receives copies of reports from all Danish departments of clinical microbiology. The database was launched in order to provide healthcare personnel with nationwide access to microbiology reports and to enable real-time surveillance...... of communicable diseases and microorganisms. The establishment and management of MiBa has been a collaborative process among stakeholders, and the present paper summarises lessons learned from this nationwide endeavour which may be relevant to similar projects in the rapidly changing landscape of...

  4. Development of BaSO sub 4 :Eu thermoluminescence phosphor

    CERN Document Server

    Madhusoodanan, U; Lakshmanan, A R

    1999-01-01

    A highly sensitive thermoluminescence (TL) phosphor based on BaSO sub 4 :Eu was developed following the coprecipitation technique and firing in argon atmosphere at 1123 K. Photoluminescence studies confirm that firing in argon atmosphere instead of air increased the incorporation of Eu ions in 2+ valence state. At low gamma-ray doses, its TL sensitivity is nearly 2 to 3 times higher than that of CaSO sub 4 :Dy phosphor. The other salient features of this BaSO sub 4 :Eu TL phosphor are a constant glow curve shape and a nearly linear gamma-ray dose response.

  5. BaCo2(AsO4)2

    OpenAIRE

    Tamara Đordević

    2008-01-01

    Suitable single crystals of the title compound, barium dicobalt(II) bis[orthoarsenate(V)], were prepared under hydrothermal conditions. This phase belongs to a series of compounds with general formula AM2(XO4)2, where A = alkaline earth metal, M = Mg or a divalent first-row transition element, and X = P, As or V. BaCo2(AsO4)2 is isotypic with BaNi2(XO4)2 (X = P, V or As) and is characterized by brucite-like sheets of edge-sharing CoO6 octahedra (3 symmetry) parallel to (001), with one-third o...

  6. G factor of the 21+ state in /sup 142/Ba

    International Nuclear Information System (INIS)

    The g factor of the 21+ state in /sup 142/Ba was measured using the time integral perturbed angular correlation technique. The state was populated following the β decay of mass-separated /sup 142/Cs produced by thermal neutron fission of /sup 235/U. A g factor of 0.48 +- 0.14 was measured. This result is analyzed together with previous results for /sup 144,146/Ba, using two different models: the hydrodynamic model including Greiner's correction for different proton and neutron pairing forces, and the interacting boson approximation IBA-2

  7. Observing the CMB with the AMiBA

    Science.gov (United States)

    Subrahmanyan, R.

    I discuss the capabilities and limitations of the AMiBA for imaging CMB anisotropies. Michael Kesteven (ATNF-CSIRO) has proposed drift-scanning as an observing strategy for measuring and rejecting any instrumental response that the close-packed interferometers may have to the local environment. The advantages of mosaic imaging CMB anisotropies using a co-mounted interferometric array in a drift-scanning observing mode are discussed. A particular case of mosaic imaging a sky strip using a two-element AMiBA prototype interferometer is considered and the signal-to-noise ratio in the measurement of sky anisotropy using this observing strategy is analysed.

  8. Observing the CMB with the AMiBA

    CERN Document Server

    Subramanian, R

    2001-01-01

    I discuss the capabilities and limitations of the AMiBA for imaging CMB anisotropies. Michael Kesteven (ATNF-CSIRO) has proposed drift-scanning as an observing strategy for measuring and rejecting any instrumental response that the close-packed interferometers may have to the local environment. The advantages of mosaic imaging CMB anisotropies using a co-mounted interferometric array in a drift-scanning observing mode are discussed. A particular case of mosaic imaging a sky strip using a two-element AMiBA prototype interferometer is considered and the signal-to-noise ratio in the measurement of sky anisotropy using this observing strategy is analysed.

  9. Assessment of inorganic contaminants in golden mussel (Limnoperna fortunei) in Southern Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Ederson R.; Soares, Bruno M.; Duarte, Fabio A., E-mail: fabioand@gmail.com [Escola de Quimica e Alimentos, Universidade Federal do Rio Grande, Rio Grande-RS (Brazil); Vieira, Joao P.; Mai, Ana C.G. [Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande-RS (Brazil); Picoloto, Rochele S.; Muller, Edson I.; Flores, Erico M.M. [Departamento de Quimica, Universidade Federal de Santa Maria, Santa Maria-RS (Brazil)

    2012-05-15

    Major and trace element content was determined in golden mussel (Limnoperna fortunei) collected in the Sao Goncalo Channel (Rio Grande City, Brazil). A microwave-assisted digestion procedure in closed vessels was applied to mussel decomposition and subsequent determination of elements by spectrometric techniques. Results showed that the mussel tissue contains Ag, Al, As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, Li, Mg, Mn, Mo, P, Pb, S, Sn, Sr, Ti, V and Zn, while the same elements (except Ag and Hg) were quantified in its shell, demonstrating its potential as a biomarker. In this sense, these results can be used to establish an initial view and to contribute to further studies related to element contamination in the area under study (author)

  10. Assessment of organochlorine pesticide residues in Atlantic Rain Forest fragments, Rio de Janeiro, Brazil.

    Science.gov (United States)

    Quinete, Natalia Soares; de Oliveira, Elba dos Santos; Fernandes, Daniella R; Avelar, Andre de Souza; Santelli, Ricardo Erthal

    2011-12-01

    A superficial water quality survey in a watershed of the Paraíba do Sul River, the main water supply for the most populated cities of southeastern Brazil, was held in order to assess the impact of the expansion of agricultural activity in the near border of the Atlantic Rain Forest. The aim of this study was to investigate the presence of priority organochlorine pollutants in soils and superficial waters of Atlantic rainforest fragments in Teresópolis, Rio de Janeiro State. Soil sample preparations were compared by using ultrasound, microwave assisted extraction and Soxhlet extraction. Recoveries of matrix spiked samples ranged from 70 to 130%. Analysis of a certified soil material showed recoveries ranging from 71 to 234%. Although low concentrations of organochlorine residues were found in water and soil samples, this area is of environmental importance and concern, thus demanding a monitoring program of its compartments. PMID:21864959

  11. Praseodymium valency from crystal structure in Pr-Ba-Cu-O and (Y-Pr)-Ba-Cu-O single crystals

    International Nuclear Information System (INIS)

    The substitution of Pr to Y leads to materials with a general formula (Y1-vPrv) (Ba2-xPrx) (Cu3-y vacy) O6+x/2-y+z and with a structural transition around v + x' ∼ 0.5. For v + x 0.5 the crystals are tetragonal, La1.5Ba1.5Cu3O7±z type, with the characteristic tri-twinning of this phase. The Pr valency, in the range 3-3.2+ depending on preparation conditions, is determined from interatomic distances. Orthorhombic crystals of Pr Ba Cu O prepared at high temperatures exhibit a high amount of defects, y ∼ 0.25 on the Cu(1) site and are semiconductors with a T-1/4 activation law attributed to the praseodymium valence fluctuation

  12. Brazil: World Oil Report 1991

    International Nuclear Information System (INIS)

    This paper reports that Brazil's state oil company Petrobras has racked up a significant period of achievement over the last 12 months. Average daily oil production hit a new high. A small portion of deepwater giant Marlim field came onstream. Risk contracts ended, and the firm assumed all responsibility for exploration activity in Brazil. Furthermore, Santos basin proved to be the nation's most recent oil province after two discoveries. Last, but not least, Petrobras assumed a dominant position worldwide in development of new deepwater technology, as evidenced by papers presented at the 1991 Offshore Technology Conference. What is remarkable is that all this was achieved while the company was experiencing political turmoil. Last Oct. 19, Petrobras President Luis Octavio Motta Veiga resigned in a dispute with the Ministry of Economy (MOE) over refined product pricing levels. His replacement, interestingly enough, was the 36-year-old executive secretary of the MOE, Eduardo de Freitas Teixeira. His term at Petrobras lasted less than six months

  13. Nuclear research reactors in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Cota, Anna Paula Leite; Mesquita, Amir Zacarias, E-mail: aplc@cdtn.b, E-mail: amir@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2011-07-01

    The rising concerns about global warming and energy security have spurred a revival of interest in nuclear energy, giving birth to a 'nuclear power renaissance' in several countries in the world. Particularly in Brazil, in the recent years, the nuclear power renaissance can be seen in the actions that comprise its nuclear program, summarily the increase of the investments in nuclear research institutes and the government target to design and build the Brazilian Multipurpose research Reactor (BMR). In the last 50 years, Brazilian research reactors have been used for training, for producing radioisotopes to meet demands in industry and nuclear medicine, for miscellaneous irradiation services and for academic research. Moreover, the research reactors are used as laboratories to develop technologies in power reactors, which are evaluated today at around 450 worldwide. In this application, those reactors become more viable in relation to power reactors by the lowest cost, by the operation at low temperatures and, furthermore, by lower demand for nuclear fuel. In Brazil, four research reactors were installed: the IEA-R1 and the MB-01 reactors, both at the Instituto de Pesquisas Energeticas Nucleares (IPEN, Sao Paulo); the Argonauta, at the Instituto de Engenharia Nuclear (IEN, Rio de Janeiro) and the IPR-R1 TRIGA reactor, at the Centro de Desenvolvimento da Tecnologia Nuclear (CDTN, Belo Horizonte). The present paper intends to enumerate the characteristics of these reactors, their utilization and current academic research. Therefore, through this paper, we intend to collaborate on the BMR project. (author)

  14. Hereditary haemoglobin disorders in Brazil.

    Science.gov (United States)

    Zago, M A; Costa, F F

    1985-01-01

    The data on the incidence and variability of hereditary haemoglobin (Hb) disorders in Brazil are reviewed. The most common abnormalities are HbS, HbC and beta-thalassaemias. Both homozygotes and compound heterozygotes for these genes (i.e., HbS/HbC disease, S/beta-thalassaemia, C/beta-thalassaemia) are common, owing to the free miscegenation of populations of Mediterranean and African ancestry. The diversity of beta-thalassaemias is similar to that observed in other regions. beta(0)-Thalassaemia is more frequent than the beta(+) variant among affected individuals. Most patients are descendants of Italian immigrants but occasional cases have other racial origins. Patients with thalassaemia major are mostly beta (0) homozygotes, while thalassaemia intermedia is more heterogeneous, including a variety of genotypes. alpha-Thalassaemias are not common although cases of HbH disease have been reported. Isolated examples of several Hb variants have been described, and two abnormal Hb were first found in Brazil: Hb Porto Alegre and Hb Niteroi. PMID:3898485

  15. Homosexuality and adoption in Brazil.

    Science.gov (United States)

    Uziel, A P

    2001-11-01

    Western societies are undergoing legal and policy changes in relation to laws governing the family, marital status, sexual orientation and the welfare of children, including in Brazil where, in the 1990s, the rights of homosexuals were incorporated into ongoing debates about what constitutes a family. This paper discusses the issue of adoption of children by homosexual men in Brazil, using information from court records from 1995-2000 in Rio de Janeiro, and from interviews with two judges, five psychologists and four social workers who evaluate those wishing to adopt. It uses the case records of one man's application to adopt, in which homosexuality became a central issue. Both the construction of masculinity in relation to parenting and concepts of the family were the parameters upon which the decision to allow him to adopt or not depended. Because the legislation does not specify what the sexual orientation of would-be adoptive parents should be, it is possible for single persons to adopt if they show they can be good parents. As more single people, alone or in couples, seek to adopt, it is important to clarify the criteria for judicial decisions on adoption applications. A dialogue is therefore needed on the meaning of family and whether and how it relates to sexual orientation. It is only on this basis that the courts can take a clear decision as to whether being homosexual is a relevant issue in regard to applications to adopt or not. PMID:11765396

  16. Brazil: World Oil Report 1991

    Energy Technology Data Exchange (ETDEWEB)

    1991-08-01

    This paper reports that Brazil's state oil company Petrobras has racked up a significant period of achievement over the last 12 months. Average daily oil production hit a new high. A small portion of deepwater giant Marlim field came onstream. Risk contracts ended, and the firm assumed all responsibility for exploration activity in Brazil. Furthermore, Santos basin proved to be the nation's most recent oil province after two discoveries. Last, but not least, Petrobras assumed a dominant position worldwide in development of new deepwater technology, as evidenced by papers presented at the 1991 Offshore Technology Conference. What is remarkable is that all this was achieved while the company was experiencing political turmoil. Last Oct. 19, Petrobras President Luis Octavio Motta Veiga resigned in a dispute with the Ministry of Economy (MOE) over refined product pricing levels. His replacement, interestingly enough, was the 36-year-old executive secretary of the MOE, Eduardo de Freitas Teixeira. His term at Petrobras lasted less than six months.

  17. Análise de risco de contaminação de águas superficiais e subterrâneas por pesticidas em municípios do Alto Paranaíba - MG

    Directory of Open Access Journals (Sweden)

    André Santana Andrade

    2011-01-01

    Full Text Available A preliminary analyses of the possible contamination of surface and groundwater by the active ingredients of the pesticide products used in the areas with intensive agricultural activities of Alto Paranaíba region, MG, Brazil, was carried out. The active ingredients and formulated products most used in the region were identified and their characteristics of environmental importance were presented. The EPA screening criteria, the groundwater ubiquity score (GUS and the criteria proposed by Goss were used to evaluate which pesticides might contaminate the local waters. Among the active ingredients studied, several present risks to the local aquatic environment.

  18. Punta Pitt, Galapagos Ba/Ca Data for 1963-1982

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — File contains Ba/Ca data (in mmol/mol) presented by Lea et al. (1989). Samples were measured at the Massachusetts Institute of Technology by D. Lea. Ba...

  19. Interaction in ternary HgBr2-BaBr2-CsBr system

    International Nuclear Information System (INIS)

    Series of polythermal sections in ternary HgBr2-BaBr2-CsBr system are investigated by the methods of physicochemical analysis. In double systems restricting ternary HgBr2-BaBr2-CsBr system formation of CsHg2Br5, CsHgBr3, Cs2HgBr4, CsBa2Br4 and CsBa2Br5 compounds is detected. Projection of liquidus surface of ternary HgBr2-BaBr2-CsBr system on triangle of compositions is plotted. This projection consists of eight fields of the primary crystallization of phases: HgBr2, BaBr2, CsBr, CsHgBr5, CsHgBr3, Cs2HgBr4, Cs2BaBr4 and CsBa2Br5. Coordinates of nonvariant points are determined

  20. Thermal conductivity of superconducting joint of Y-Ba-Cu-O bulk materials

    International Nuclear Information System (INIS)

    We have measured the thermal conductivity (κ) of bulk Y-Ba-Cu-O blocks welded with sintered Er-Ba-Cu-O and Y-Ba-Cu-O/Ag at temperatures between 5 and 300 K. For comparison, the thermal conductivity was also measured for melt-textured Y-Ba-Cu-O and Er-Ba-Cu-O. All the samples showed the enhancement of κ at around 50 K, which was commonly observed in high temperature superconductors. The maximum κ values were 90 mW/cm K for both welded Y-Ba-Cu-O and melt-textured Er-Ba-Cu-O and 150 mW/cm K for melt-textured Y-Ba-Cu-O. Such differences have originated from different microstructural features