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The influence of soil on vegetation structure and plant diversity in different tropical savannic and forest habitats

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Journal of Plant Ecology 2018年第2期11卷 226-236页

作者： priscyla maria silva rodrigues Carlos Ernesto Gonçalves Reynaud Schaefer Jhonathan de Oliveira silva Walnir Gomes Ferreira Júnior Rubens Manoel dos Santos Andreza Viana Neri Universidade Federal do Vale do São Francisco Campus Senhor do BonfimColegiado de EcologiaAv.Tomaz GuimarãesS/NBairro Santos DumontSenhor do BonfimBACEP 48.970-000Brazil Universidade Federal de Viçosa Departamento de SolosCampus UniversitárioViçosaMGCEP 36570-900Brazil Instituto Federal de Educação Ciência e Tecnologia do Sul de Minas GeraisRodovia Machado-ParaguaçuKm 3MachadoMGCEP 37750-000Brazil Universidade Federal de Lavras Departamento de Ciências FlorestaisLaboratório de Conservação e Manejo da BiodiversidadeCampus UniversitárioLavrasMGCEP 37200-000Brazil Universidade Federal de Viçosa Departamento de Biologia VegetalLaboratório de Ecologia e Evolução de PlantasCampus UniversitárioViçosaMGCEP 36570-900Brazil

Aims Soil plays an important role in the formation and heterogene-ity of habitats and thus can cause changes in vegetation struc-ture and plant *** differentiation between Cerrado/savanna and forest is well known,but the relationship between soil and habitats from savannic or forest formations still needs to be better understood,particularly in tropical ecotonal *** studied the association between attributes of plant com-munities,namely structure and diversity,and physicochemical characteristics of soils in the Caatinga domain at the transition to Cerrado in *** Chemical and physical analyses of soils were performed in samples of 38 plots from savannic formations and 30 plots from forest *** was characterized floristically and structurally in all plots,five habitats being assessed in each plant *** features and vegetation parameters were highly distinct among the different *** Findingsin general,forest habitats were more nutrient rich than savannic ***,soil variables showed effects both on vegetation structure and on its species diversity,more pronouncedly in the savannic *** were structurally distinct,and diversity differed between savannic and forest communities;however,a higher differentiation occurred when the savannic formation habitats were compared among *** plant diversity did not differ among forest formation habitats,soil attributes showed a close relationship with edaphic factors and can contribute for similar *** soil-vegetation relationship in highly diverse ecotonal landscapes is important from the conservation biology point of view and aid in the execution of proactive plans for the maintenance of ***,we noticed that diversity and soil behaves distinctly between savannic and forest communities.

关键词： Cerrado dry forest edaphic variation vegetation-soil relationship ecotone

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A Brazilian experience of the self transglutaminase-based test for celiac disease case finding and diet monitoring

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World Journal of Gastroenterology 2009年第35期15卷 4423-4428页

作者： Lorete maria da silva Kotze Ana Paula Brambila rodrigues Luiz Roberto Kotze Renato Mitsunori Nisihara Gastroenterology and Endoscopy Services Cajuru HospitalPontifical Catholic University of ParanáCEP 80240-220CuritibaParanáBrazil Evangelical University and Laboratory of Immunopathology Clinical HospitalFederalUniversity of ParanáCEP 80240-220CuritibaParanáBrazil

AIM： To evaluate the effectiveness of a rapid and easy fingertip whole blood point-of-care test for celiac disease （CD） case finding and diet monitoring. METHODS： Three hundred individuals, 206 females （68.7%） and 94 males （31.3%）, were submitted to a rapid and easy immunoglobulin-A-dass fingertip whole blood point-of-care test in the doctor＇s office in order to make immediate clinical decisions： 13 healthy controls, 6 with CD suspicion, 46 treated celiacs, 84 relatives of the celiac patients, 69 patients with dyspepsia, 64 with irritable bowel syndrome （IBS）, 8 with Crohn＇s disease and 9 with other causes of diarrhea. RESULTS： Upper gastrointestinal endoscopy with duodenal biopsies was performed in patients with CD suspicion and in individuals with positive test outcome： in 83.3% （5/6） of the patients with CD suspicion, in 100% of the patients that admitted gluten-free diet transgressions （6/6）, in 3.8% of first-degree relatives （3/79） and in 2.9% of patients with dyspepsia （2/69）. In all these individuals duodenal biopsies confirmed CD （Marsh＇s histological classification）. The studied test showed good correlation with serologic antibodies, endoscopic and histological ***： The point-of-care test was as reliable as conventional serological tests in detecting CD cases and in CD diet monitoring.

关键词： Celiac disease Gluten Relatives Dyspepsia Diarrhea

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Equity issues and the PeCUS index:an indirect analysis of community severance

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Geo-Spatial Information Science 2020年第4期23卷 293-304页

作者： Daniela Vanessa Rodriguez Lara Antonio Nelson rodrigues da silva Department of Transportation Engineering São Carlos School of EngineeringUniversity of São PauloSão PauloBrazil

Urban barriers are often a consequence of the unplanned expansion of transport infrastructures,housing growth nearby existing transport infrastructures,and the vehicular traffic *** process,also known as“community severance”,is a problem that affects the travel patterns of the population and causes negative impacts to adjacent communities,but it is not easy to *** an alternative to the costly technologies and restricted-access data sometimes used to analyze urban barriers,we propose an analytical approach that assesses community severance levels by classifying the quality of Pedestrian Crossings on Urban Streets(the PeCUS index).Additionally,the approach is used to identify possible inequities nearby the different classification groups regarding demographic *** used the chi-square(χ^(2))test of independence and the standardized Pearson residuals to indicate deficits and excesses of residents regarding the demographic characteristics studied surrounding the urban *** found the following evidences of associations:residents with low-income or those aged up to 19 tend to live close to the worst crossings,whereas residents with permanent mobility constraints or the elderly tend to live near the crossings with the best ***,the study shows that the assessment of community severance by the analysis of the PeCUS index is ***,it reveals that the distribution of residents surrounding the distinct classes of quality of crossings is equitable for vulnerable social groups,except for low-income or young residents.

关键词： Community severance transport barriers pedestrian crossings equity open data geographic information systems(GIS)

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Bioactive compounds of red grapes from Dao region(Portugal):Evaluation of phenolic and organic profile

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Asian Pacific Journal of Tropical Biomedicine 2016年第4期6卷 315-321页

作者： Luís rodrigues silva Mafalda Queiroz Health Sciences Research Centre Faculty of Health Sciences University of Beira Interior Department of Chemical Engineering Faculty of EngineeringUniversity of Porto Polytechnic Institute of Castelo Branco School of Health Dr.Lopes Dias Laboratory of Pharmacognosy Department of ChemistryFaculty of PharmacyUniversity of Porto

Objective:To improve the knowledge on the metabolite profile of five red grapes from D?o region(Portugal),concerning to the phenolic characteristics(coloured and non-coloured phenolics) and organic acid ***:Five red grapes collected from D?o region were *** profiles of phenolic compounds and organic acids were estimated by high-performance liquid chromatography with diode-array detection and high-performance liquid chromatography with UV detector,***:Totally 24 phenolic compounds were identified,and distributed by several classes:8 anthocyanins,1 hydroxybenzoic acid,4 hydroxycinnamic acids,1 stilbene,4flavan-3-ols,6 ***,10 organic acids were detected in all *** contents of each phenolic class and organic acids amounts varied significantly among the different grape cultivars *** principal components analysis differentiates the Touriga Nacional from the other varieties due to their high contents in anthocyanins,non-coloured phenolics and organic *** Nacional is an important red grape cultivar,highly esteemed in D?o region for its ability to produce high quality ***:The results suggest that the red grapes from D?o region present a good composition in bioactive compounds,being important for the production of wines with superior quality.

关键词： Vitis vinifera Grapes Dao region Phenolics Organic acids

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Prognosis of forest production using machine learning techniques

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Information Processing in Agriculture 2023年第1期10卷 71-84页

作者： Jeferson Pereira Martins silva Mayra Luiza Marques da silva Adriano Ribeiro de Mendonca Gilson Fernandes da silva Antoˆnio Almeida de Barros Junior Evandro Ferreira da silva Marcelo Otone Aguiar Jeangelis silva Santos Nı´vea maria Mafra rodrigues Federal University of Espirito Santo UFESDepartment of Forestry and Wood ScienceAvenue Governor Lindemberg31629550-000 Jeroˆnimo MonteiroESBrasil b Departamento de Cieˆncias Agra´riasUniversidade Federal de Sa o Joa del-Rei Sete Lagoas CampusHighway MG 424-Km 47Sete LagoasMinas Gerais 35701-970Brazil Federal University of Para(UFPA) University Campus of AltamiraStreet Cel.Jose Porfırio2515Sa o Sebastiao68372-040 AltamiraPABrazil

Forest production and growth are obtained from statistical models that allow the generation of information at the tree or forest stand *** the use of regression models is common in forest measurement,there is a constant search for estimation procedures that provide greater ***,machine learning techniques have been used with satisfactory performance in measuring ***,methods such as Adaptive NeuroFuzzy Inference System(ANFIS)and Random Forest are relatively poorly studied for predicting the volume of wood in eucalyptus plantations in ***,it is essential to check whether these techniques can provide gains in terms of ***,this study aimed to evaluate the use of Random Forest and ANFIS techniques in the prognosis of forest *** data used come from continuous forest inventories carried out in stands of eucalyptus *** data were divided into 70%for training and 30%for *** algorithms used to generate rules in ANFIS were Subtractive Clustering and ***,training was done with the hybrid algorithm(descending gradient and least squares)with the number of seasons ranging from 1 to *** RFs were trained,varying the number of trees from 50 to 850 and the number of observations by five leaves to *** neural networks and decision trees were also trained to compare the feasibility of the *** evaluation of the estimates generated by the techniques for training and validation was calculated based on the following statistics:correlation coefficient(r),relative Bias(RB),and the relative root mean square error(RRMSE)in *** general,the techniques studied in this work showed excellent performance for the training and validation data set with RRMSE values*** RF presented inferior statistics about the ANFIS for the prognosis of forest *** Subtractive Clustering(SC)and Fuzzy-C-Means(FCM)algorithms provide accurate baseline

关键词： Artificial Intelligence Ensemble Learning Forest Measurement Forest inventory Artificial Neural Networks Regression

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Small-scale self-driving cars:A systematic literature review

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Journal of Traffic and Transportation Engineering(English Edition) 2024年第2期11卷 271-292页

作者： Felipe Caleffi Lauren da silva rodrigues Joice da silva Stamboroski Brenda Medeiros Pereira Autonomous Vehicles Laboratory Federal University of Santa MariaCachoeira do Sul 96503-205Brazil Mobility and Logistics Laboratory Federal University of Santa MariaCachoeira do Sul 96503-205Brazil

The autonomous vehicle(AV)technology has the potential to significantly improve safety and efficiency of the transportation and logistics ***-scale AV testing is limited by time,space,and cost,while simulation-based testing often lacks the necessary accuracy of AV and environmental *** recent years,several initiatives have emerged to test autonomous software and hardware on scaled *** systematic literature review provides an overview of the literature surrounding small-scale self-driving cars,summarizing the current autonomous platforms deployed and focusing on the software and hardware developments in this *** studies published in English-language journals or conference papers that present small-scale testing of self-driving cars were *** of Science,Scopus,Springer Link,Wiley,ACM Digital Library,and TRID databases were used for the literature *** systematic literature search found 38 eligible *** gaps in the reviewed papers were identified to provide guidance for future *** key takeaway emerging from this manuscript are:(i)there is a need to improve the models and neural network architectures used in autonomous driving systems,as most papers present only preliminary results;(ii)increasing datasets and sharing databases can help in developing more reliable control policies and reducing bias and variance in the training process;(iii)small-scaled vehicles to ensure safety is a major benefit,and incorporating data about unsafe driving behaviors and infrastructure problems can improve the accuracy of predictive models.

关键词： Self-driving car Autonomous vehicle Small-scale vehicle Systematic literature review

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Performance of masonry enclosure walls:lessons learned from recent earthquakes

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Earthquake Engineering and Engineering Vibration 2012年第1期11卷 23-34页

作者： Romeu silva Vicente Hugo rodrigues Humberto Varum Aníbal Costa Jos António Raimundo Mendes da silva University of Aveiro Civil Engineering Department Campus Universitario de SantiagoAveiroPT3810-193Portugal University of Coimbra Civil Engineering Pinhal de MarrocosPolo ⅡCoimbraPT3030Portugal

This paper discusses the issue of performance requirements and construction criteria for masonry enclosure and infill walls. Vertical building enclosures in European countries are very often constituted by non-load-bearing masonry walls, using horizontally perforated clay bricks. These walls are generally supported and confined by a reinforced concrete frame structure of columns and beams/slabs. Since these walls are commonly considered to be nonstructural elements and their influence on the structural response is ignored, their consideration in the design of structures as well as their connection to the adjacent structural elements is frequently negligent or insufficiently detailed. As a consequence, nonstructural elements, as for wall enclosures, are relatively sensitive to drift and acceleration demands when buildings are subjected to seismic actions. Many international standards and technical documents stress the need for design acceptability criteria for nonstructural elements, however they do not specifically indicate how to prevent collapse and severe cracking, and how to enhance the overall stability in the case of moderate to high seismic loading. Furthermore, a review of appropriate measures to improve enclosure wall performance and both in-plane and out-of-plane integrity under seismic actions is addressed.

关键词： RC structures masonry enclosure walls infill walls in-plane out-of-plane cracking performanceimprovement

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Association of sleep quality with sociodemographic factors and lifestyle in adolescents from southern Brazil

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World Journal of Pediatrics 2018年第4期14卷 383-391页

作者： Tiago rodrigues de Lima Diego Augusto Santos silva Physical Education Department Federal University of Santa CatarinaProfessor Clementino de Britto Street362 ap 334 CapoeirasFlorianópolisSanta CatarinaBrazil

Background Good sleep quality is an essential component for growth, development, and physical and mental health of the individual, in addition to being a positive indicator of health and well-being. The objective of this study was to estimate the prevalence of poor sleep quality and to identify the association of poor sleep quality with sociodemographic factors, lifestyle, weight status, and associated aerobic fitness in adolescents. Methods This study included 1110 students aged 14–19 years from city of S?o José/SC, Brazil. Sleep quality of the subjects was assessed using a questionnaire and classified as adequate and low. Independent variables were gender, age, monthly household income, maternal education, school shift, global physical activity, proper diet, screen time, sleeping hours of full week, sleeping hours of weekdays, sleeping hours of weekends, weight status, and aerobic fitness. Binary logistic regression was used to estimate odds ratios and confidence intervals of 95%. Results Prevalence of poor sleep quality was 60.4%. More likely to have poor sleep quality were identified in female students (OR 1.68, 95% CI 1.11–2.55), whose mothers had higher levels of education (OR 1.44, 95% CI 1.20–1.73) and low aerobic fitness (OR 1.80, 95% CI 1.02–3.19). Conclusion Adolescents who were most likely to report poor sleep quality were female, those whose mothers had a higher educational level and had low aerobic fitness. Students with sedentary risk behavior were less likely of reporting poor sleep quality.

关键词： Adolescents Brazil Cross-sectional studies Demographic indicators Sleep hygiene

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A compact underwater stereo vision system for measuring fish

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Aquaculture and Fisheries 2024年第6期9卷 1000-1006页

作者： Cesar silva Ricardo Aires Flavio rodrigues Fishmetrics LdaHorta9900-146Portugal

contributes for decisions at several production ***,taking length measurements is a cumbersome task that,when applied to living individuals,can induce considerable stress,increasing the risk of damage or hindering their *** vision is one of the most used non-contact tools to overcome this issue,being fast,consistent and ***,its use in aquatic environments is limited by the high cost,the difficulty of calibrating the system in underwater conditions and the complexity of *** paper proposes a low-cost easy-to-use vision system that can take measurements on live fish in aquatic conditions,without the need for a special calibration or a demanding in-water calibration *** present work implemented a compact stereo vision system and developed a method that estimates the correct length of fish,based on the variation of the angle of incidence of the light rays in the *** some structural conditions such as a short baseline,the system is able to measure fish with an error of less than 1%.The short baseline allows to have a compact system and reduces the effect of water refraction on the 3D reconstruction.A set of experiments were performed with real fish,working robustly for a set of orientations of the fish(even when the caudal fin and snout are on different distances to the cameras).

关键词： Underwater stereo vision Fish measuring Fish length Aquaculture technology

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Medicinal plants from the Brazilian Amazonian region and their antileishmanial activity:a review

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Journal of Integrative Medicine 2018年第4期16卷 211-222页

作者： Bruno Jose Martins Da silva Amanda Anastacia Pinto Hage Edilene Oliveira silva Ana Paula Drummond rodrigues Laboratory of Parasitology and Laboratory of Structural Biology Institute of Biological SdencesFederal University of PardBelemPard 66075-110Brazil National Institute of Science and Technology in Structural Biology and Bioimaging Rio de JaneiroRio de Janeiro 21941-901Brazil Laboratory of Electron Microscopy Department of Health SurveillanceMinistry of HealthEvandro Chagas InstituteBelemPard 66087-082Brazil

Leishmaniasis, a neglected disease caused by Leishmania protozoans, primarily affects people in tropical and subtropical areas. Chemotherapy based on the use of pentavalent antimonials, amphotericin B, paromomycin, miltefosine and liposomal amphotericin B is currently the only effective treatment. However, adverse effects, long-term treatment and the emergence of parasite resistance have led to the search for alternative treatments. Natural products used in traditional medicine provide an unlimited source of molecules for the identification of new drugs, and the Amazon region has abundant biodiversity that includes several species of plants and animals, providing a rich source of new products and com- pounds. Although the literature describes numerous promising compounds and extracts for combating Leishmania protozoans, the results of such research have not been embraced by the pharmaceutical industry for the development of new drugs. Therefore, this review focused on the antileishmanial activity of extracts, isolated compounds and essential oils commonly used by the local population in the Brazilian Amazonian region to treat several illnesses and described in the literature as promising compounds for combating leishmaniasis.

关键词： Amazonian plants Leishmaniasis treatment Plant compounds Plant extracts Plant oils

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