61 research outputs found
Relato de caso: gastrostomia endoscópica percutânea associada a videolaparoscopia - técnica de rendezvous
O procedimento em rendezvous consiste em uma combinação de abordagens endoscópicas, percutâneas e/ou cirúrgicas para atingir o objetivo através de dois diferentes pontos do corpo, de modo que não possa ser feito por meio de apenas um deles. Assim, a combinação das técnicas endoscópicas e laparoscópicas, como por exemplo a utilizada na cirurgia oncológica para tumores gastrointestinais, permite a ressecção da parede gástrica com margens, entre outros exemplos.  
O Paleolítico de Melgaço: Vestígios arqueológicos dos primeiros habitantes do Concelho
info:eu-repo/semantics/publishedVersio
Lower Paleolithic artifacts preserved on the lower fluvial terraces of Minho River near Melgaço, NW of Iberia: diversity and chronology
Ocupações pleistocénicas da margem esquerda do Baixo Minho (Miño/Minho2): objetivos e primeiros resultados de um projeto transfronteiriço
As mais antigas investigações arqueológicas no âmbito do Paleolítico da bacia hidrográfica do rio Minho (NW Peninsular) iniciaram-se na primeira metade do século XX. Por esta mesma altura realizaram-se também os primeiros estudos geomorfológicos na região, que permitiram correlacionar artefactos líticos com terraços fluviais.Durante a segunda metade daquele mesmo século, o estudo do Paleolítico ocorreu essencialmente na Galiza, ficando em Portugal reduzido a trabalhos pontuais e geograficamente circunscritos. A partir de 2010 assiste-se, igualmente na Galiza, ao desenvolvimento de um projecto de investigação que possibilitou não só a identificação de novos sítios arqueológicos, como também a sua datação absoluta, remetendo-os para o Plistocénico médio. A elaboração do projecto Miño-Minho, cujos primeiros resultados agora se apresentam, teve como principal objectivo dar continuidade na margem portuguesa a estes trabalhos iniciados no país vizinho.The earliest archaeological research on the Palaeolithic of the Minho River Basin (NW Iberia) took place in the first half of the 20th century. At the same time, geomorphological studies were developed in the region allowing the connection between lithic artefacts and fluvial terraces. In the second half of this century the studies on the Palaeolithic occurred mainly in Galicia, while in Portugal they were short-term and focused on geographically confined areas. From 2010 onwards, also in Galicia, a research project was developed which enabled the detection of new archaeological sites and their absolute dating, assigning them to the Middle Pleistocene. Thedevelopment of the Miño-Minho project, whose first results are now presented, had as its main objective to carry on in the Portuguese bank the research initiated in the neighboring country
Relatório dos trabalhos de escavação arqueológica realizados em 2017: Pedreira 2 (Monção) e Carvalhas (Melgaço)
Avaliação de método convencional e digestão úmida para determinação de níveis de Fe, Mn, Ni, Cu, Co, Mg, Zn, Ca, Mo e Se em amostras secas de tomates orgânicos (Solanum lycopersicum L.) por Absorção Atômica de Chama (FAAS)
The aim of this study was to investigate the effect of digestion and extraction of minerals in organic tomatoes to atomic spectrometry. Fe, Mn, Ni, Cu, Co, Mg, Zn, Ca, Mo e Se levels in seven organic samples of dried tomatoes (Solanum lycopersicum L.), were determined by flame atomic absorption spectrometry. Dissolution conditions in the wet digestion method were studied by investigating several variables, including type of acid mixture and acid volume and digestion time. Comparison with conventional dry ashing methods was also made. In order to check the element losses during digestion and the accuracy of the results, all tests were repeated with statistical analysis. The nitric-perchloric acid digestion method was efficient for Ca, Mg, Se and Zn. The extraction procedure with chloride acid was similar to the nitric-perchloric acid digestion and the nitric-perchloric acid digestion was equivalent to the conventional dry ashing for the Mn. For the Cu and Mo conventional dry ashing methods was more efficient. For the Ca conventional dry ashing methods no showed significative difference for the nitric-perchloric acid digestion. The extractions with chloride acid are promised, practical and simples, with lower riscs for the manusead and ambiental contaminations.
O objetivo deste estudo foi investigar o efeito da digestão e extração de minerais em tomates orgânicos por espectrometria atômica. Os níveis de Fe, Mn, Ni, Cu, Co, Mg, Zn, Ca, Mo e Se em sete amostras orgânicas de tomate seco (Solanum lycopersicum L.) foram determinados por espectrometria de absorção atômica com chama. As condições de dissolução no método de digestão úmida foram estudadas através da investigação de várias variáveis, incluindo o tipo de mistura ácida e o volume e tempo de digestão. Também foi feita uma comparação com os métodos convencionais de secagem a seco. Para verificar as perdas dos elementos durante a digestão e a precisão dos resultados, todos os testes foram repetidos com análise estatística. O método de digestão com ácido nítrico-perclórico foi eficiente para Ca, Mg, Se e Zn. O procedimento de extração com ácido clorídrico foi semelhante à digestão com ácido nítrico-perclórico e a digestão com ácido nítrico-perclórico foi equivalente à cinzas secas convencionais para o Mn. Para o Cu e Mo, os métodos convencionais de secagem a seco foram mais eficientes. Para os métodos convencionais de cinzas a seco do Ca, não houve diferença significativa para a digestão com ácido nítrico-perclórico. As extrações com ácido clorídrico são prometidas, práticas e simples, com menores riscos para o manuscrito e contaminações ambientais
BII-Implementation: The causes and consequences of plant biodiversity across scales in a rapidly changing world
The proposed Biology Integration Institute will bring together two major research institutions in the Upper Midwest—the University of Minnesota (UMN) and University of Wisconsin-Madison (UW)—to investigate the causes and consequences of plant biodiversity across scales in a rapidly changing world—from genes and molecules within cells and tissues to communities, ecosystems, landscapes and the biosphere. The Institute focuses on plant biodiversity, defined broadly to encompass the heterogeneity within life that occurs from the smallest to the largest biological scales. A premise of the Institute is that life is envisioned as occurring at different scales nested within several contrasting conceptions of biological hierarchies, defined by the separate but related fields of physiology, evolutionary biology and ecology. The Institute will emphasize the use of ‘spectral biology’—detection of biological properties based on the interaction of light energy with matter—and process-oriented predictive models to investigate the processes by which biological components at one scale give rise to emergent properties at higher scales. Through an iterative process that harnesses cutting edge technologies to observe a suite of carefully designed empirical systems—including the National Ecological Observatory Network (NEON) and some of the world’s longest running and state-of-the-art global change experiments—the Institute will advance biological understanding and theory of the causes and consequences of changes in biodiversity and at the interface of plant physiology, ecology and evolution.
INTELLECTUAL MERIT
The Institute brings together a diverse, gender-balanced and highly productive team with significant leadership experience that spans biological disciplines and career stages and is poised to integrate biology in new ways. Together, the team will harness the potential of spectral biology, experiments, observations and synthetic modeling in a manner never before possible to transform understanding of how variation within and among biological scales drives plant and ecosystem responses to global change over diurnal, seasonal and millennial time scales. In doing so, it will use and advance state-of-the-art theory. The institute team posits that the designed projects will unearth transformative understanding and biological rules at each of the various scales that will enable an unprecedented capacity to discern the linkages between physiological, ecological and evolutionary processes in relation to the multi-dimensional nature of biodiversity in this time of massive planetary change. A strength of the proposed Institute is that it leverages prior federal investments in research and formalizes partnerships with foreign institutions heavily invested in related biodiversity research. Most of the planned projects leverage existing research initiatives, infrastructure, working groups, experiments, training programs, and public outreach infrastructure, all of which are already highly synergistic and collaborative, and will bring together members of the overall research and training team.
BROADER IMPACTS
A central goal of the proposed Institute is to train the next generation of diverse integrative biologists. Post-doctoral, graduate student and undergraduate trainees, recruited from non-traditional and underrepresented groups, including through formal engagement with Native American communities, will receive a range of mentoring and training opportunities. Annual summer training workshops will be offered at UMN and UW as well as training experiences with the Global Change and Biodiversity Research Priority Program (URPP-GCB) at the University of Zurich (UZH) and through the Canadian Airborne Biodiversity Observatory (CABO). The Institute will engage diverse K-12 audiences, the general public and Native American communities through Market Science modules, Minute Earth videos, a museum exhibit and public engagement and educational activities through the Bell Museum of Natural History, the Cedar Creek Ecosystem Science Reserve (CCESR) and the Wisconsin Tribal Conservation Association
The Acheulean site of As Gándaras de Budiño: synthesis and perspectives after 50 years of disencouters
El yacimiento paleolítico de As Gándaras de Budiño es un yacimiento clave en la Prehistoria antigua de la Península Ibérica. Aunque el yacimiento ha sido excavado en diferentes ocasiones, muchos de los aspectos geológicos y arqueológicos no son bien conocidos. Entre estos problemas está la cronología, que inicialmente fue atribuida al MIS 2 -originando una fuerte controversia-, aunque en la actualidad podemos afirmar que tiene una cronología del Pleistoceno Medio. Las industrias líticas son de tipo achelense de grandes lascas (LFA), con características similares a la de otros yacimientos de la Península Ibérica. Este artículo es un estado de la cuestión para el yacimiento, previo al reinicio de las investigaciones.As Gándaras de Budiño (GB) is a key locality for the Lower Palaeolithic record of the Iberian Peninsula. Although the site has been excavated in different occasions over the last decades, several geological and archaeological aspects are still not well known. Among other issues, the age of the lithic assemblage has been debated for a long time: despite an initial correlation to the MIS 2, new evidence rather points towards a Middle Pleistocene age instead. The lithic assemblage characterized as large flake acheulean type (LFA), with many similarities with other acheulean sites in the Iberian Peninsula. This work presents an updated overview of the current state of knowledge for GB while a new multidisciplinary research project has been recently initiatedinfo:eu-repo/semantics/publishedVersio
Association of the microbiological profile with cytological changes in quilombolas women at the basic health units
Objetivo: Analisar o perfil microbiológico e relacionar com as alterações citológicas de mulheres quilombolas que possuem lesões cérvico-vaginais. Material e Métodos. Este foi um estudo de corte transversal de 5 meses, baseado em 154 mulheres quilombolas, na faixa etária de 13 a 74 anos, registradas no Sistema Único de Saúde (SUS) e que possuem lesões cérvico-vaginais. Resultados. Mulheres com idade >45 anos (43,5%) foram as que mais realizaram exames Papanicolaou, seguido das mulheres com 31 a 45 anos (31,2%) e posteriormente ≤30 anos (25,3%). A infecção mais comum em mulheres com idade ≤30 foi Gardnerella sp. (35,8%), já em mulheres na faixa de 31 a 45 anos foi Lactobacillus sp. (47,9%). A prevalência global das alterações citológicas foi de 7,8%, com maior frequência na faixa de 31 a 45 anos. Conclusão. As mulheres com vaginose bacteriana apresentaram maior prevalência de atipias celulares e não houve associação estatisticamente significante entre faixa etária e alterações cérvico-vaginais, bem como, a microbiota não apresentou associação com anormalidades citológicas.Aim: Analyzing the microbiological profile and associate it with cytological alterations in quilombola women with cervical-vaginal lesions. Material and Methods: This was a 5-month cross-sectional study based on 154 quilombola women, in the 13 to 74 years age group, recorded in the Sistema Único de Saúde (SUS) with cervical-vaginal lesions. Results: Women aged 45 years and older (43.5%) had the most Pap smears, followed by women in the 31 to 45 years (31,2%) and ≤30 years old (25,3%). The most common infection in women of ≤30 years old was Gardnerella (35,8%) and in the 31 to 45 years group was Lactobacillus (47,9%). The overall prevalence of cytological abnormalities was 7.8%, with higher frequency in the 31 to 45 years group. Conclusion: The microbiological profile in the quilombola women with bacterial vaginosis had the highest cellular atypias prevalence and no statistically significant association was found between the age range and cervical-vaginal changes, as well as the microbiota had no association with cytological abnormalities
El yacimiento achelense de as Gándaras de Budiño: sín-tesis y perspectivas después de 50 años de desencuentros
ES: El yacimiento paleolítico de As Gándaras de Budiño es un yacimiento clave en la Prehistoria antigua de la Península Ibérica. Aunque el yacimiento ha sido excavado en diferentes ocasiones, muchos de los aspectos geológicos y arqueológicos no son bien conocidos. Entre estos problemas está la cronología, que inicialmente fue atribuida al MIS 2 -originando una fuerte controversia-, aunque en la actualidad podemos afirmar que tiene una cronología del Pleistoceno Medio. Las industrias líticas son de tipo achelense de grandes lascas (LFA), con características similares a la de otros yacimientos de la Península Ibérica. Este artículo es un estado de la cuestión para el yacimiento, previo al reinicio de las investigaciones.The Acheulean site of As Gándaras de Budiño: synthesis and perspectives after 50 years of disencoutersAs Gándaras de Budiño (GB) is a key locality for the Lower Palaeolithic record of the Iberian Peninsula. Although the site has been excavated in different occasions over the last decades, several geological and archaeological aspects are still not well known. Among other issues, the age of the lithic assemblage has been debated for a long time: despite an initial correlation to the MIS 2, new evidence rather points towards a Middle Pleistocene age instead. The lithic assemblage characterized as large flake acheulean type (LFA), with many similarities with other acheulean sites in the Iberian Peninsula. This work presents an updated overview of the current state of knowledge for GB while a new multidisciplinary research project has been recently initiate
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