373 research outputs found

    O "Carisolv" e as técnicas de tratamento minimamente invasivas.

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    Mestrado Integrado em Medicina DentáriaMaster Degree in Dental Medicin

    A New Two-Pored Amphisbaena Linnaeus, 1758, \ud from Western Amazonia, Brazil \ud (Amphisbaenia: Reptilia)

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    Recent efforts to improve sampling of Brazilian biodiversity have yielded a number of undescribed species of amphisbaenids. Herein, we describe a new species of small, two-pored Amphisbaena from western Brazilian Amazonia. The new species can be distinguished from all congeners by the combination of the following characters: two precloacal pores arranged in a continuous series; snout rounded in lateral and dorsal views; tip of tail rounded; 233–250 body annuli; 20–24 caudal annuli; autotomy sites on caudal annuli 6–9; 10 dorsal and 12–14 ventral segments per annulus at midbody; absence of postmalars; suture between frontals slightly smaller than parietal and nasal sutures; and tail short relative to body length (tail length/body length = 0.10). The new species inhabits the rain forest and small patches of savanna vegetation within the Amazon Forest. A Bayesian analysis based on two mitochondrial (16S and ND2) and three nuclear (cmos, BNDF and RAG1) markers recovered the new species as sister to a clade formed by A. hastata + A. cuiabana; however, support for this relationship is low. Genetic divergence between populations from both sides of the middle Madeira River is low.IBAMA (permit CGFAP 260/2010

    A new species of Atractus (Serpentes: Dipsadidae) from Serra do Cipó, Espinhaço Range, Southeastern Brazil, with proposition of a new species group to the genus

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    We describe a new species of Atractus from Serra do Cipó, at the southeastern versant of Serra do Espinhaço, an inland mountain range nearly parallel to the Brazilian Atlantic coast. The new species is morphologically similar to A. paraguayensis and A. potschi with which it shares: 15 dorsal scale rows; white occipital region in juvenile specimens; dorsal ground color reddish pink to red (in life) with alternate black transversal spots, blotches or transversal bands; seven upper and lower labial scales; ventrals and subcaudals creamish white; hemipenis slightly bilobed, semicapitate and semicalyculate. The new species differs from both taxa mainly on the basis of exclusive coloration characters (number and shape of transversal bands) and hemipenial morphology (median face of the lobes without ornamentation), besides punctual meristic (number of ventral scales and maxillary teeth) and morphometric (adult snout-vent length) differences. Finally, we provide a discussion regarding the potential affinities of the new species and we redefine some Atractus species groups in order to better accommodate species sharing unique combinations of morphological characters.Descrevemos uma nova espécie de Atractus da Serra do Cipó, na vertente sudeste da Serra do Espinhaço, uma cadeia montanhosa continental aproximadamente paralela à costa Atlântica brasileira. A nova espécie é morfologicamente similar a A. paraguayensis e A. potschi com as quais compartilha: 15 séries de escamas dorsais; região occipital branca em espécimes jovens; coloração dorsal de fundo variando de rosa avermelhado a vermelho (em vida) com pontuações, manchas e/ou bandas transversais pretas; sete supralabiais e infralabiais; ventrais e subcaudais creme esbranquiçado; hemipênis levemente bilobado, semicapitulado e semicaliculado. A nova espécie difere de ambos os táxons principalmente a partir de caracteres exclusivos de coloração (número e forma das bandas transversais), da morfologia hemipeniana (face mediana dos lobos sem ornamentação) além de diferenças merísticas (número de escamas ventrais e dentes maxilares) e morfométricas (comprimento rostro-cloacal dos adultos). Apresenta-se uma discussão sobre as possíveis afinidades da nova espécie e redefinem-se alguns grupos de espécies de Atractus no sentido de acomodar melhor as espécies que compartilham combinações únicas de caracteres morfológicos

    A experiência da Rede de Agroecologia do Leste Paulista (SP) – Brasil

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    A Rede de Agroecologia do Leste Paulista (SP) – Brasil foi criada em 2005 a partir de uma articulação entre Agricultores(as) Familiares da região e de um conjunto de organizações governamentais e não governamentais de ensino, pesquisa e extensão com o objetivo de contribuir para o desenvolvimento local sustentável fundamentado nos princípios da Agroecologia. Para isso, as estratégias desenvolvidas pela Rede ao longo desses dez anos foram pautadas por processos participativos voltados à construção do conhecimento e da transição agroecológica de unidades familiares de produção numa perspectiva territorial. Dentre as diferentes atividades de interação e de construção do conhecimento agroecológico, destaca-se o trabalho desenvolvido em Unidades de Referência (UR) implantadas, conduzidas e monitoradas em áreas dos próprios Agricultores Familiares. O presente trabalho aborda os aspectos positivos (fortalezas e potencialidades) e negativos (debilidades e resistências) desse processo, além de apontar alguns caminhos para o fortalecimento e consolidação da referida Rede.Eje: B6 Desarrollo rural, movimientos sociales, Estado y agroecología (Relatos de experiencias)Facultad de Ciencias Agrarias y Forestale

    Práticas artísticas no ensino básico e secundário

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    Sobre a Matéria-Prima, há novidades e perigos. O tempo vivido na Europa e no contexto global tem vindo a acentuar a urgência das prioridades quantificadas, com um discurso dominante onde há menos política (pessoas) e mais representação económica (coisas). O correlato entre pessoas e coisas é, como sabemos, o dinheiro, ou trabalho reificado. A crise europeia, em torno da dívida soberana e dos maiores orçamentos do mundo, da capacidade da sua gestão na linguagem dura dos mercados e das taxas de juro veio modificar os objetivos imediatos da Europa, que em 2000 eram ambiciosos — “a sociedade mais competitiva do mundo em 2010” — para uma estratégia de emergência, agora chamada horizonte 2020. Este é o panorama ideal para colocar o ensino artístico em risco. Os fóruns internacionais passaram a valorizar os resultados da educação em rankings e sondagens de aproveitamento, cuja principal estratégia e preocupação é a mensurabilidade e comparabilidade, como são exemplo os relatórios PISA: avaliam-se em todos os países, as competências em Ciências, Matemática e Língua Materna. A matéria-prima de amanhã corre riscos de desaparecer gradualmente, pelos cortes de carga horária, pela concepção extracurricular da educação artística, pela sua perceção menorizada em função das concepções competitivas da sociedade contemporânea globalizada.info:eu-repo/semantics/publishedVersio

    Intermediate Molecular Phenotypes to Identify Genetic Markers of Anthracycline-Induced Cardiotoxicity Risk.

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    Cardiotoxicity due to anthracyclines (CDA) affects cancer patients, but we cannot predict who may suffer from this complication. CDA is a complex trait with a polygenic component that is mainly unidentified. We propose that levels of intermediate molecular phenotypes (IMPs) in the myocardium associated with histopathological damage could explain CDA susceptibility, so variants of genes encoding these IMPs could identify patients susceptible to this complication. Thus, a genetically heterogeneous cohort of mice (n = 165) generated by backcrossing were treated with doxorubicin and docetaxel. We quantified heart fibrosis using an Ariol slide scanner and intramyocardial levels of IMPs using multiplex bead arrays and QPCR. We identified quantitative trait loci linked to IMPs (ipQTLs) and cdaQTLs via linkage analysis. In three cancer patient cohorts, CDA was quantified using echocardiography or Cardiac Magnetic Resonance. CDA behaves as a complex trait in the mouse cohort. IMP levels in the myocardium were associated with CDA. ipQTLs integrated into genetic models with cdaQTLs account for more CDA phenotypic variation than that explained by cda-QTLs alone. Allelic forms of genes encoding IMPs associated with CDA in mice, including AKT1, MAPK14, MAPK8, STAT3, CAS3, and TP53, are genetic determinants of CDA in patients. Two genetic risk scores for pediatric patients (n = 71) and women with breast cancer (n = 420) were generated using machine-learning Least Absolute Shrinkage and Selection Operator (LASSO) regression. Thus, IMPs associated with heart damage identify genetic markers of CDA risk, thereby allowing more personalized patient management.J.P.L.’s lab is sponsored by Grant PID2020-118527RB-I00 funded by MCIN/AEI/10.13039/ 501100011039; Grant PDC2021-121735-I00 funded by MCIN/AEI/10.13039/501100011039 and by the “European Union Next Generation EU/PRTR”, the Regional Government of Castile and León (CSI144P20). J.P.L. and P.L.S. are supported by the Carlos III Health Institute (PIE14/00066). AGN laboratory and human patients’ studies are supported by an ISCIII project grant (PI18/01242). The Human Genotyping unit is a member of CeGen, PRB3, and is supported by grant PT17/0019 of the PE I + D + i 2013–2016, funded by ISCIII and ERDF. SCLl is supported by MINECO/FEDER research grants (RTI2018-094130-B-100). CH was supported by the Department of Defense (DoD) BCRP, No. BC190820; and the National Cancer Institute (NCI) at the National Institutes of Health (NIH), No. R01CA184476. Lawrence Berkeley National Laboratory (LBNL) is a multi-program national laboratory operated by the University of California for the DOE under contract DE AC02-05CH11231. The Proteomics Unit belongs to ProteoRed, PRB3-ISCIII, supported by grant PT17/0019/0023 of the PE I + D +i, 2017–2020, funded by ISCIII and FEDER. RCC is funded by fellowships from the Spanish Regional Government of Castile and León. NGS is a recipient of an FPU fellowship (MINECO/FEDER). hiPSC-CM studies were funded in part by the “la Caixa” Banking Foundation under the project code HR18-00304 and a Severo Ochoa CNIC Intramural Project (Exp. 12-2016 IGP) to J.J.S

    MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occurrences in P ortugal

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    Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore information on their distribution is cru-cial to delineate and support conservation actions. MAMMALS INPORTUGAL is a publicly available data set compiling unpublishedgeoreferenced occurrence records of 92 terrestrial, volant, and marine mam-mals in mainland Portugal and archipelagos of the Azores and Madeira thatincludes 105,026 data entries between 1873 and 2021 (72% of the data occur-ring in 2000 and 2021). The methods used to collect the data were: live obser-vations/captures (43%), sign surveys (35%), camera trapping (16%),bioacoustics surveys (4%) and radiotracking, and inquiries that represent lessthan 1% of the records. The data set includes 13 types of records: (1) burrowsjsoil moundsjtunnel, (2) capture, (3) colony, (4) dead animaljhairjskullsjjaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8),observation in shelters, (9) photo trappingjvideo, (10) predators dietjpelletsjpine cones/nuts, (11) scatjtrackjditch, (12) telemetry and (13) vocalizationjecholocation. The spatial uncertainty of most records ranges between 0 and100 m (76%). Rodentia (n=31,573) has the highest number of records followedby Chiroptera (n=18,857), Carnivora (n=18,594), Lagomorpha (n=17,496),Cetartiodactyla (n=11,568) and Eulipotyphla (n=7008). The data setincludes records of species classified by the IUCN as threatened(e.g.,Oryctolagus cuniculus[n=12,159],Monachus monachus[n=1,512],andLynx pardinus[n=197]). We believe that this data set may stimulate thepublication of other European countries data sets that would certainly contrib-ute to ecology and conservation-related research, and therefore assisting onthe development of more accurate and tailored conservation managementstrategies for each species. There are no copyright restrictions; please cite thisdata paper when the data are used in publications.info:eu-repo/semantics/publishedVersio

    Mammals in Portugal: a data set of terrestrial, volant, and marine mammal occurrences in Portugal

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    Mammals are threatened worldwide, with ~26% of all species being included in the IUCN threatened categories. This overall pattern is primarily associated with habitat loss or degradation, and human persecution for terrestrial mammals, and pollution, open net fishing, climate change, and prey depletion for marine mammals. Mammals play a key role in maintaining ecosystems functionality and resilience, and therefore information on their distribution is crucial to delineate and support conservation actions. MAMMALS IN PORTUGAL is a publicly available data set compiling unpublished georeferenced occurrence records of 92 terrestrial, volant, and marine mammals in mainland Portugal and archipelagos of the Azores and Madeira that includes 105,026 data entries between 1873 and 2021 (72% of the data occurring in 2000 and 2021). The methods used to collect the data were: live observations/captures (43%), sign surveys (35%), camera trapping (16%), bioacoustics surveys (4%) and radiotracking, and inquiries that represent less than 1% of the records. The data set includes 13 types of records: (1) burrows | soil mounds | tunnel, (2) capture, (3) colony, (4) dead animal | hair | skulls | jaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8), observation in shelters, (9) photo trapping | video, (10) predators diet | pellets | pine cones/nuts, (11) scat | track | ditch, (12) telemetry and (13) vocalization | echolocation. The spatial uncertainty of most records ranges between 0 and 100 m (76%). Rodentia (n =31,573) has the highest number of records followed by Chiroptera (n = 18,857), Carnivora (n = 18,594), Lagomorpha (n = 17,496), Cetartiodactyla (n = 11,568) and Eulipotyphla (n = 7008). The data set includes records of species classified by the IUCN as threatened (e.g., Oryctolagus cuniculus [n = 12,159], Monachus monachus [n = 1,512], and Lynx pardinus [n = 197]). We believe that this data set may stimulate the publication of other European countries data sets that would certainly contribute to ecology and conservation-related research, and therefore assisting on the development of more accurate and tailored conservation management strategies for each species. There are no copyright restrictions; please cite this data paper when the data are used in publications

    Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

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    Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

    AI is a viable alternative to high throughput screening: a 318-target study

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    : High throughput screening (HTS) is routinely used to identify bioactive small molecules. This requires physical compounds, which limits coverage of accessible chemical space. Computational approaches combined with vast on-demand chemical libraries can access far greater chemical space, provided that the predictive accuracy is sufficient to identify useful molecules. Through the largest and most diverse virtual HTS campaign reported to date, comprising 318 individual projects, we demonstrate that our AtomNet® convolutional neural network successfully finds novel hits across every major therapeutic area and protein class. We address historical limitations of computational screening by demonstrating success for target proteins without known binders, high-quality X-ray crystal structures, or manual cherry-picking of compounds. We show that the molecules selected by the AtomNet® model are novel drug-like scaffolds rather than minor modifications to known bioactive compounds. Our empirical results suggest that computational methods can substantially replace HTS as the first step of small-molecule drug discovery
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