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Spatial distribution of morphometric parameters of glacial cirques in the Central Pyrenees(Aran and Boí valleys)

Journal of Mountain Science 2018年第10期15卷 2103-2119页

作者： luis lopes Marc OLIVA Marcelo FERNANDES Paulo PEREIRA Pedro PALMA Jesús RUIZ-FERNáNDEZ Centre for Geographical Studies – IGOT Universidade de Lisboa Department of Geography University of Barcelona Environmental Management Center Mykolas Romeris University Department of Geography University of Oviedo

Glacial cirques are typical landscape features of mid-latitude mountain environments like the Central Pyrenees. Their morphology as well as their spatial distribution provides insights about past glaciers and climates. In this study, we examine the distribution, morphometrical and topographical characteristics of glacial cirques in two U-shaped glacial valleys located in the Central Pyrenees – the Aran and the Boí valleys. They are located in different aspects of this mountain range(north vs south) under different climatic influences that promoted distinct glaciation patterns during the late Pleistocene. The spatial mapping of these landforms was carried out using high-resolution imagery and field observations. We analysed the data of the morphometrical and topographical variables of the glacial cirques by using different statistical and geospatial methods in order tounveil the factors controlling their formation and development. A total of 186 glacial cirques were mapped in the study area, including 119 in the Aran and 67 in the Boí valleys. The local topography and microclimate conditions lead to substantial differences in both areas in terms of the morphology and dimensions of the cirques. Glacial cirques in Boí are distributed at slightly higher elevations than in Aran and they are also larger, though their dimensions decrease with elevation in both valleys. Aran cirques are mostly oriented NE, while Boí landforms do not show any prevailing aspect. Even though lithology does not control the distribution of the glacial cirques, some specific lithological settings may favour the development of larger cirques. In general, glacial cirques in the Aran and the Boí valleys show morphometrical properties similar to those reported in other mid-latitude mountain ranges.

关键词： Central Pyrenees Aran and Boi valleys glacial cirques topography morphometry.

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Lactobacillus bulgaricus inhibits colitis-associated cancer via a negative regulation of intestinal inflammation in azoxymethane/dextran sodium sulfate model

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World Journal of Gastroenterology 2020年第43期26卷 6782-6794页

作者： Denise Sayuri Calheiros Silveira Luciana Chain Veronez luis Carlos lopes-Junior Elen Anatriello Mariangela Ottoboni Brunaldi Gabriela Pereira-da-Silva Department of Biochemistry and Immunology University of São Paulo at Ribeirão Preto Medical SchoolRibeirão Preto 14049-900SPBrazil Health Sciences Center Federal University of Espírito Santo-UFESVitória 29043-900ESBrazil Institute of Science and Technology Federal University of São PauloUNIFESPSão Josédos Campos 12231-280SPBrazil Department of Pathology and Forensic Medicine University of São PauloRibeirao Preto 14040-902SPBrazil Department of Maternal-Infant Nursing and Public Health University of São Paulo at Ribeirão Preto College of NursingRibeirão Preto 14040-902SPBrazil

BACKGROUND Colitis-associated cancer(CAC)accounts for 2%-3%of colorectal cancer(CRC)cases preceded by inflammatory bowel diseases(IBD)such as Crohn's disease and ulcerative *** microbiota has been reported to play a central role in the pathogenesis of IBD and ***,numerous prebiotics and probiotics have being investigated as antitumor agents due to their capacity to modulate inflammatory *** studies have indicated that lactic acid bacteria could be successfully used in managing sporadic CRC,however little is known about their role in *** To investigate the effect of the probiotic Lactobacillus bulgaricus(***)during the development of an experimental model of colitis associated colon cancer(CAC).METHODS C57BL/6 mice received an intraperitoneal injection of azoxymethane(10 mg/kg),followed by three cycles of sodium dextran sulphate diluted in water(5%w/v).Probiotic group received daily *** inflammation was determined by scoring clinical *** levels were determined from colon and/or tumor samples by ELISA BD OptEIATM *** level of significance was set at P<*** were generated and statistical analysis performed using the software GraphPad Prism *** *** treatment inhibited of total tumor volume and mean size of *** addition,the probiotic also attenuated the clinical signs of intestinal inflammation inducing a decrease in intestinal and tumor levels of IL-6,TNF-α,IL-17,IL-23 and IL-1β.CONCLUSION Our results suggest a potential chemopreventive effect of probiotic on *** regulates the inflammatory response and preventing CAC.

关键词： Lactobacillus bulgaricus Colitis-associated cancer Colorectal cancer Carcinogenesis Probiotics Inflammation

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＂My Newscast＂ Is No Longer Ours

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Journalism and Mass Communication 2011年第3期1卷 201-212页

作者： Felisbela lopes luis M. Loureiro University of Minho Braga Portugal

With this article we aim to propose an analytical alternative to what we could call the substitution and condemnation of the spectator as an element of the new technological apparatuses. Actually, what we see in many of the current reflections on new media is that while the spectator is being accused of ultimate passivity, he is also being mobilized to emancipated action as an empowered user. Through the critique of an online application available on Portuguese Radio Television （RTP）＇s website, the state-owned television network, called 0 Meu Telejornal1, we will try to demonstrate that we actually need to develop a spectator theory to critically understand the political position of the citizen within our changing contemporary media environment.

关键词： TV newscast online news spectatorship citizenship technological determinism

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Analysis of Percolation of the Stabilized Suspensions of TiO2 and SiO2 Nanoparticles in Soil Columns Simulating Landfill Layers

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Journal of Mechanics Engineering and Automation 2016年第1期6卷 47-52页

作者： Elizabeth Mendes de Oliveira Daniele Aparecida Nogueira luis CarlosRolim lopes Jose Flavio Silveira Feiteira Jose Adilson de Castro Escola de Engenharia de Alimentos Centro Federal de Educaao Tecnologica Celso Suckow da Fonseca Valenca 27600-000Rio de Janeiro Brasil Escola de Engenharia Industrial Metalurgica Universidade Federal Fluminense Volta Redonda 27255-125 Rio de Janeiro Brasil

It studied the behavior of transport and stability of TiO2 and SiO2 nanoparticles suspensions percolating through soil columns aiming at simulating municipal waste landfills covering soil layers performance. Experimental columns were constructed with landfill soils and water suspensions with nanoparticles percolation runs were carried out. The experimental columns were constructed with 100 mm and 200 mm of diameter and height, respectively. Outlet concentrations were measured along the percolation time using ICP-OES and nanoparticles tracking analyzer. It was observed that SiO2 nanoparticles acts as a stabilizer of TiO2 nanoparticles suspensions and promotes its transport through the soil columns, which simulates the conditions of the controlled landfills layers. The interaction of the suspensions of SiO2 nanoparticles with nanoparticles of TiO2, promote a high stability of the emulsions, which confers the high zeta potential present in SiO2 suspensions, promoting greater mobility and transport through the soil columns. The experimental results demonstrated that TiO2 nanoparticles were kept suspended, even after 10 days, which indicates good stability. It was observed that both TiO2 and SiO2 were kept in suspensions with negligible nanoparticles clustering and decantation. It was confirmed that the TiO2 and SiO2 of the outflow of soil columns are strongly affected by the soil pH, organic carbon and clay content of the soils. It was observed that the soil columns behave as a retention barrier for both TiO2 and SiO2 nanoparticles.

关键词： Stabilization column experiment and nanofluids.

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Effect of increasing densities of Urochloa brizantha cv. Marandu on Eucalyptus urograndis initial development in silvopastoral system

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Journal of Forestry Research 2019年第2期30卷 537-543页

作者： Michel Anderson Almeida Colmanetti Allan lopes Bacha Pedro luis da Costa Aguiar Alves Rinaldo Cesar de Paula University of Sao Paulo – USP/ESALQ Sao Paulo State University – UNESP/FCAV

In silvopasture system, the coexistence of eucalyptus seedlings with other species may result in growth reduction, especially during eucalyptus early ***, studies elucidating how forage species affect the eucalyptus growth can provide important information for their rational management aiming to obtain the maximum gain of the system. The aim of this work was to evaluate the effect of increasing densities of Urochloa brizantha *** in the early development of Eucalyptus urograndis. An experiment was conducted in 20 L pots, in an open and semi-controlled area, during 90 days after planting of eucalyptus. A completely randomized design with four replications was used, in a 6 9 7 factorial system, meaning six evaluation periods and seven densities of U. brizantha: 0(control), 22, 33, 44, 67, 89 and111 plants m^(-2). Fortnightly, eucalyptus height, stem diameter and chlorophyll fluorescence(Fv/Fm) were evaluated. At the end of experimental period, the net assimilation rate, stomatal conductance and transpiration rate of eucalyptus plants were determined, in addition to the dry matter of eucalyptus(leaves and stem) and U. brizantha (leaves). In coexistence with 111 plants m^(-2), eucalyptus had reduction of 63.9% on total dry matter and 72.7% on leaf area, compared to the control. From the density of22 plants m^(-2), U. brizantha negatively interfere significantly the growth of E. urograndis. Up to 8 plants m^(-2) there are no reductions greater than 5% in eucalyptus height and stem diameter.

关键词： Eucalyptus Palisade grass Competition Interference

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“Love Is Strong, and You＇re so Sweet”： JAGGER Is Essential for Persistent Synergid Degeneration and Polytubey Block in Arabidopsis thaliana

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Molecular Plant 2016年第4期9卷 601-614页

作者： Ana Marta Pereira Margarida Sofia Nobre Sara Cristina Pinto Ana Lucia lopes Mario luis Costa Simona Masiero Silvia Coimbra Departamento de Biologia Faculdade de Ciencias da Universidade do Porto Rua do Campo Alegre 4169-007 Porto Portugal Plant Functional Genomics Group Biosystems and Integrative Sciences Institute (BiolSI) 4169-007 Porto Portugal Dipartimento di BioScienze Universita degli Studi di Milano 20133 Milan Italy Present address: Institute of Plant Biology and ZUrich-Basel Plant Science Center University of ZUrich Zolikerstrasse 107 8008 Zurich Switzerland

Successful double fertilization and subsequent seed development in flowering plants requires the delivery of two sperm cells, transported by a pollen tube, into the embryo sac of an ovule. The embryo sac cells tightly control synergid cell death, and as a result the polyspermy block. Arabinogalactan proteins are highly glycosylated proteins thought to be involved in several steps of the reproductive process. We show that JAGGER, Arabinogalactan Protein 4, is an important molecule necessary to prevent the growth of multiple pollen tubes into one embryo sac in Arabidopsis thaliana. In jagger, an AGP4 knockout mutant, the pistils show impaired pollen tube blockage as a consequence of the survival of the persistent synergid. JAGGER seems to be involved in the signaling pathway that leads to a blockage of pollen tube attraction. Our results shed light on the mechanism responsible for preventing polyspermy in Arabidopsis and for safe- guarding successful fertilization of all ovules in one pistil, ensuring seed set and the next generation.

关键词： Polytubey persistent synergid arabinogalactan proteins polyspermy

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Movement behaviors and their association with depressive symptoms in Brazilian adolescents:A cross-sectional study

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Journal of Sport and Health Science 2022年第2期11卷 252-259页

作者： Bruno Goncalves Galdino da Costa Jean-Philippe Chaput Marcus Vinicius Veber lopes luis Eduardo Argenta Malheiros Kelly Samara Silva Research Centre in Physical Activity and Health Federal University of Santa CatarinaFlorianopolis88040-900Brazil Healthy Active Living and Obesity Research Group Children’s Hospital of Eastern Ontario Research InstituteOttawaON K1H 8L1Canada

Background:Physical activity,sleep,and sedentary behaviors compose 24-h movement behaviors and have been independently associated with depressive ***,it is not clear whether it is the movement behavior itself or other contextual factors that are related to depressive *** objective of the present study was to examine the associations between self-reported and accelerometer-measured movement behaviors and depressive symptoms in ***:Cross-sectional data from 610 adolescents(14-18 years old)were *** answered questions from the Center for Epidemiological Studies Depression scale and reported time spent watching videos,playing videogames,using social media,time spent in various physical activities,and daytime ***-worn accelerometers were used to measure sleep duration,sleep efficiency,sedentary time,and physical ***-effects logistic regressions were ***:Almost half of the adolescents(48%)were classified as being at high risk for depression(score≥20).No significant associations were found between depressive symptoms and accelerometer-measured movement behaviors,self-reported non-sport physical activity,watching videos,and playing ***,higher levels of self-reported total physical activity(odd ratio(OR)=0.92,95%confidence interval(95%CI):0.86-0.98)and volume of sports(OR=0.88,95%CI:0.79-0.97),in minutes,were associated with a lower risk of depression,while using social media for either 2.0-3.9 h/day(OR=1.77,95%CI:1.58-2.70)or>3.9 h/day(OR=1.67,95%CI:1.10-2.54),as well as higher levels of daytime sleepiness(OR=1.17,95%CI:1.12-1.22),were associated with a higher risk of ***:What adolescents do when they are active or sedentary may be more important than the time spent in the movement behaviors because it relates to depressive *** daytime sleepiness,promoting sports,and limiting social media use may benefit adolescents.

关键词： Accelerometry Depression Physical activity Sedentary behavior Sleep

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First Update to Herpetofaunal Records from Timor-Leste

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Asian Herpetological Research 2012年第2期3卷 114-126页

作者： Mark O'SHEA Caitlin SANCHEZ Scott HEACOX Andrew KATHRINER Venancio lopes CARVALHO Agivedo VARELA RIBEIRO Zito AFRANIO SOARES luis LEMOS DE ARAUJO Hinrich KAISER West Midland Safari Park Bewdley Worcestershire DY12 1LF United Kingdom and Australian Venom Research Unit Department of Pharmacology University of MelbourneVictoria 3010 Australia Department of Biology Victor Valley College 18422 Bear Valley Road VictorvilleCalifornia 92395 USA Department of Ecology and Evolution Stony Brook University Stony Brook New York 11794 USA Present Address: Department of Biology Villanova University 800 Lancaster Avenue VillanovaPennsylvania 19085 USA Universidade National Timor-Lorosa’e Faculdade de Ciencias da Educa ao Departamentu da Biologia Avenida Cidade de Lisboa Liceu Dr. Francisco MachadoDili Timor-Leste

Herpetological surveys of locations in six districts of Timor-Leste(Dili, Baucau, Ermera, Liqui a, Manatuto, Viqueque) during 2010 led to the discovery of a new, high-altitude species of Cryptoblepharus from Ermera District, a new country record(Hemidactylus cf. tenkatei), and the recording of two previously unvouchered species(Python r. reticulatus and Liasis m. mackloti). In this article, we summarize these new records and present numerous new district records for Timor-Leste and four records for road-killed snakes seen in West Timor(Indonesia). With the addition of the results from our 2009 survey, the update presented herein increases the confirmed number of amphibian and reptile species for Timor-Leste to 47.

关键词： herpetofauna biodiversity Timor-Leste West Timor Wallacea Cryptoblepharus Hemidactylus cf.tenkatei

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Solar-stellar astrophysics and dark matter

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Research in Astronomy and Astrophysics 2012年第8期12卷 1107-1138页

作者： Sylvaine Turck-Chize Ilídio lopes CEA/IRFU/Service d'Astrophysique AIMCE Saclay91191 Gif sur YvetteFrance Centro Multidisciplinar de Astrofísica Instituto Superior TcnicoUniversidade Tcnica de LisboaAv.Rovisco Pais1049-001 LisboaPortugal Departamento de Física Escola de Ciência e TecnologiaUniversidade de vora Colgio Luis António Verney7002-554 voraPortugal

In this review, we recall how stars contribute to the search for dark matter and the specific role of the Sun. We describe a more complete picture of the solar interior that emerges from neutrino detections, gravity and acoustic mode measurements of the Solar and Heliospheric Observatory （SOHO） satellite, becoming a reference for the most common stars in the Universe. The Sun is a unique star in that we can observe directly the effect of dark matter. The absence of a signature related to Weakly Interacting Massive Particles （WIMPs） in its core disfavors a WIMP mass range below 12 GeV. We give arguments to continue this search on the Sun and other promising cases. We also examine another dark matter candidate, the sterile neutrino, and infer the limitations of the classical structural equations. Open questions on the young Sun, when planets formed, and on its present internal dynamics are finally dis- cussed. Future directions are proposed for the next decade： a better description of the solar core, a generalization to stars coming from seismic missions and a better under- standing of the dynamics of our galaxy which are all crucial keys for understanding dark matter.

关键词： stellar evolution: theory -- elementary particles -- helioseismology --dark matter -- early solar-planet relationship

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Herpetological Diversity of Timor-Leste: Updates and a Review of Species Distributions

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Asian Herpetological Research 2015年第2期6卷 73-131页

作者： Mark O'SHEA Caitlin SANCHEZ Andrew KATHRINER Sven MECKE Venancio lopes CARVALHO Agivedo VARELA RIBEIRO Zito AFRANIO SOARES luis LEMOS DE ARAUJO Hinrich KAISER Faculty of Science and Engineering University of Wolverhampton Wulfruna Street Wolverhampton WV1 1LY United Kingdom and West Midland Safari Park Bewdley Worcestershire DY12 LF United Kingdom Department of Biology Victor Valley College Department of Biology Villanova University 800 East Lancaster Avenue Villanova Pennsylvania 19085 USA Department of Herpetology Bronx Zoo 2300 Southern Boulevard Bronx New York 10460 USA Department of Animal Evolution and Systematics Faculty of Biology Philipps Universit?t Marburg Universidade National Timor-Lorosa’e Faculdade de Ciencias da Educa?ao Departamentu da Biologia Avenida Cidade de Lisboa Liceu Dr. Francisco Machado Dili Timor-Leste Department of Vertebrate Zoology National Museum of Natural History Smithsonian Institution

We report the results of five herpetological surveys during 2011-2013 that included visits to all districts of Timor-Leste （Aileu, Ainaro, Baucau, Bobonaro, Dili, Covalima, Ermera, Laut6m, Liquiga, Manatuto, Manufahi, Viqueque） except the Oecusse exclave. Our fieldwork culminated in the discovery of one putative new frog species （genus Kaloula）, at least five putative new lizard species （genera Cyrtodactylus, Cryptoblepharus, and Sphenomorphus）, and two putative new snake species （genera Stegonotus and Indotyphlops）. In addition, we present new distribution records of amphibians and reptiles for 11 of the country＇s 12 contiguous districts, along with additional natural history data. Results from our surveys increase the number of amphibian and reptiles known to occur in Timor-Leste from 22 species before our surveys began to over 60, including over 20 as yet undescribed species.

关键词： Timor-Leste Kaloula Cyrtodactylus Eremiascincus Stegonotus

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