Associação da ocorrência de formigas (Hymenoptera: Formicidae) com atributos do solo e da vegetação em um domínio do cerrado à nordeste do estado do maranhão, Brasil

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Relação solo-vegetação em área de cerrado no nordeste do Maranhão, Brasil

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Taxa de ocupação da jaguatirica (Leopardus pardalis) e segregação espacial e temporal de felídeos na região norte e nordeste do Estado de São Paulo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Um panorama histórico das desigualdades regionais a partir da macrorregião nordeste

As históricas desigualdades sociais que caracterizam a sociedade brasileira, especificamente, expressam-se, com clareza, na base territorial. A questão regional no Brasil despontou, na década de 1950, como um tema relacionado ao Nordeste, quando Celso Furtado levou a questão nordestina ao debate nacional. Desde então, avançou a partir dos diagnósticos de Furtado, que resultaram na criação de políticas públicas voltada para o desenvolvimento regional, mas se esmoreceu nos anos oitenta e noventa, voltando a ser discutida no início do Governo Lula, quando se propôs uma nova política de desenvolvimento regional com o objetivo de arrefecer as acentuadas desigualdades persistentes nas regiões brasileiras: a Política Nacional de Desenvolvimento Regional (PNDR). A proposta deste trabalho de monografia é fazer um resgate histórico da questão das desigualdades regionais no Brasil, a partir da macrorregião nordeste, tomando como ponto de partida as análises realizadas por Celso Furtado sobre as desigualdades regionais brasileiras, que resultaram em proposições de políticas públicas voltadas para o Nordeste, com a criação do GTDN e da SUDENE nos anos cinquenta, e depois avaliando a retomada nos anos 2000 de novas políticas de desenvolvimento regional centradas no Plano Nacional de Desenvolvimento Regional

O transporte ferroviário no nordeste brasileiro e o potencial de desenvolvimento do sudoeste do Estado do Piauí

Pós-graduação em Geografia - IGCE

Sucessão estratigráfica e tratos de sistemas do Membro Romualdo, porção leste da Bacia do Araripe, nordeste do Brasil

Located in northeastern Brazil, the evolution of Araripe Basin has been associated with the fragmentation of Gondwana and opening of the South Atlantic. The Santana Formation belongs to the post-rift sequence of the basin and is characterized by the presence of laminated limestones in the lower portion (Mb. Crato), evaporite (Ipubi) and siliciclastics (Mb. Romualdo). For better understanding of the Romualdo's stratigraphy, depositional environments and tract of systems, a stratigraphic analysis was made with representative columnar sections of the unit. Sedimentary facies have been described in detail, as well as paleocurrents measured at different stratigraphic levels. It was found that the contact of Mb. Romualdo with the carbonate-evaporite section (Mbs. Crato and Ipubi) is a unconformity, evidenced by residual lags and thin layers of conglomerates above the contact. Above the conglomeratic levels predominate fine sandstones / medium interlayered with calciferous green shales. The percentage of shales increases towards the top, featuring retrogradational stacking culminating in layers of coquinas, excellent stratigraphic mark in the basin. Thin layers of coquins of gastropods comprising equinoids, located on the shale section, present in three sections marine deposits are associated with surfaces ravine. The upper section is characterized by recurrent facies of green shales, sandstones intercalated with sandstones progressively become more frequent towards the top of the unit, featuring the regressive part of the cycle. The sandstones present cross-stratification, often with mud clasts and clay layers in the foresets, and beddings of flaser type and wavy in heterolitic facies, suggesting the action of tidal currents. Paleocurrents measured in the sandstones show gaps with opposite flow directions outlining bipolar standards, which reinforce the interpretation of shallow marine environment influenced by tides during the sedimentation...

Simulação da produtividade de cana-de-açúcar (Saccharum officinarum L.) na região nordeste do Brasil, utilizando o modelo DSSAT

The objective of this study was to simulate the potential stem and sugar yield of sugar cane (Saccharum officinarum L.) in the Northeastern Brazil (Petrolina-PE and Teresina-PI) and analyze 4 varieties in different planting seasons in two environments: irrigated and rainfed cultivars. The model of simulation was DSSAT/CANEGRO (Decision Support System for Agrotechnology Transfer) and the four sugar cane varieties were as follows: RB86 7515, CTC 4, CTC 7 and CTC 20 (all in 1.5 year cycle). Analysis of variance was performed on the results and means were compared using the Tukey test with probability level at 5%. March is the recommended month for planting in Teresina, PI. In Petrolina, PE, rainfed planting is not advisable because of the extended water deficit all year long. In an irrigated environment, no difference was found concerning stem yield as a function of planting season, for all varieties in the study regions. The stem and sugar yields were always higher in irrigated environment as compared with those in rainfed environment in all municipalities and study varieties. The simulation model provided good estimate of stem and sugar yields as compared with experimental data in Teresina, PI.

Geomorfologia e quaternário do rio Vaza-Barris, Nordeste, Brasil

Pós-graduação em Geociências e Meio Ambiente - IGCE

Laminitos microbiais no membro Crato (Neoaptiano), bacia do Araripe, nordeste do Brasil

Pós-graduação em Geociências e Meio Ambiente - IGCE

Laminitos microbiais no membro Crato (Neoaptiano), bacia do Araripe, nordeste do Brasil

Pós-graduação em Geociências e Meio Ambiente - IGCE

Multidecadal climate variability in Brazil's Nordeste during the last 3000 years based on speleothem isotope records

We present the first high resolution, approximately similar to 4 years sample spacing, precipitation record from northeastern Brazil (hereafter referred to as 'Nordeste') covering the last similar to 3000 yrs from Th-230-dated stalagmites oxygen isotope records. Our record shows abrupt fluctuations in rainfall tied to variations in the intensity of the South American summer monsoon (SASM), including the periods corresponding to the Little Ice Age (LIA), the Medieval Climate Anomaly (MCA) and an event around 2800 yr B.P. Unlike other monsoon records in southern tropical South America, dry conditions prevailed during the LIA in the Nordeste. Our record suggests that the region is currently undergoing drought conditions that are unprecedented over the past 3 millennia, rivaled only by the LIA period. Using spectral, wavelet and cross-wavelet analyses we show that changes in SASM activity in the region are mainly associated with variations of the Atlantic Multidecadal Oscillation (AMO) and to a lesser degree caused by fluctuations in tropical Pacific SST. Our record also shows a distinct periodicity around 210 years, which has been linked to solar variability. Citation: Novello, V. F., et al. (2012), Multidecadal climate variability in Brazil's Nordeste during the last 3000 years based on speleothem isotope records, Geophys. Res. Lett., 39, L23706, doi: 10.1029/2012GL053936.

Migración y ecología trófica de peces migradores verticales dominantes del Atlántico nordeste subtropical: implicaciones en el flujo activo de carbono

[EN]Diel vertical migrants (DVMs) are mainly zooplankton and micronekton that migrate upward from 400-700 m depth every night to feed in the productive epipelagic zone and come back at dawn to the mesopelagic zone, where they release the ingested carbon. DVMs should contribute to the biological pump in the ocean and, accordingly, to thevglobal CO2 balance. A large portion of the DVMs biomass are the lanternfishes (myctophidae), which might represent a pathway accounting for a substantial export of organic carbon to the deep ocean. Nevertheless, the magnitude of this transport is still poorly known. The combined study of migration and feeding ecology is a good approach to improve our knowledge of the DVMs role in this active carbon flux. Two dominant myctophids in the Subtropical Eastern North Atlantic Ocean (Hygophum hygomii (Lütken, 1892) and (Lobianchia dofleini (Zugmayer, 1911)) were studied from several surveys carried out around the Canary Islands during the last decade. Our results showed a marked diel vertical migration and a prevailing nocturnal feeding with predation mainly on copepods and euphausiids. The digestion state of prey suggested a slow stomach evacuation rate and that most of the ingested carbon in the epipelagic is efficiently transported to the mesopelagic zone.

Desarrollo, territorio y conflicto en el nordeste de Misiones. En: Avá, n° 19

En el presente artículo se pone en cuestión la relación entre desarrollo y territorio en el nordeste de Misiones. Para ello se analizan tres ejes conflictivos: la disputa por la madera entre ocupantes de tierras privadas y empresarios madereros, el avance de la ocupación asociado al complejo tabacalero y las identificaciones contrapuestas que los actores realizan y exponen en su discurso acerca de estos contextos locales en estado de “resistencia” o enfrentamiento. Se focaliza en la dimensión espacial del desarrollo en tanto proceso de dominación y ejercicio de poder de unos actores sobre otros, precisando las diversas formas de uso y apropiación del territorio. Este análisis pone en evidencia las capacidades diferenciales de los actores y el poder desigual existente entre ellos; también da cuenta de las variadas situaciones de conflicto social que se generan cuando se profundizan las contradicciones, así como los diferentes modos de resolución y enfrentamiento que se instrumentan por parte del Estado y de los actores locales

Acta acuerdo de cooperación entre la Facultad de Humanidades y Ciencias Sociales de la Universidad Nacional de Misiones y la Facultad de Humanidades de la Universidad Nacional del Nordeste. Resolución n° 414

Convenio Específico, en el marco del Convenio de Cooperación Universidades Nacionales del Norte Grande Argentino (Resolución CS N° 024/03) para la realización de actividades conjuntas entre FHyCS-UNaM y "FH-UNNE", en las áreas de Ciencias de la Información y de Tecnologías informáticas aplicadas a la Documentación.

Reflexiones sobre bibliotecas y bibliotecarios. En: El territorio: El diario del nordeste argentino. 1985-09-15

Sobre Biblioteca y bibliotecas; Institución y biblioteca; El bibliotecario y las bibliotecas; Escuelas y biblioteca