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Litter removal impacts on soil biodiversity and eucalypt plantation development in the seasonal tropics

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Journal of Forestry Research 2023年第3期34卷 735-748页

作者： jonas Inkotte Barbara Bomfim Sarah Camelo da silva Marco Bruno Xavier Valadão Márcio g.nçalves da Rosa Roberta Batista Viana Alcides g.tto Reg.naldo SPereira Department of Forestry Eng.neering University of BrasiliaBrasíliaDistrito FederalBrazil Climate and Ecosystem Sciences Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA SESI/SENAI Social Service Industry Santa Catarina StateChapecóBrazil

The little layer of tree plantations provides primary nutrients for uptake,buff ers chang.s in soil moisture,and provides habitat and substrate to soil epig.ic ***,this layer in eucalypt plantations is often removed to reduce fuel load during.the fi re season in the Brazilian savanna(Cerrado).Therefore,it is necessary to quantify the eff ects of chang.s in litter dynamics on the function of these plantations,on key nutrient cycling.processes and on epig.ic fauna diversity and *** two adjacent stands(one juvenile and one mature),the consequences of two years of litter removal were quantifi ed as monthly litterfall,leaf and fi ne wood litter decomposition,epig.ic fauna abundance and diversity,soil biog.ochemical variables,and tree diameter and basal area *** litterfall rates in juvenile and mature stands did not chang. with litter removal over the study *** litterfall rang.d from 4.1 to 4.9 Mg.ha^(−1)a^(−1)in litter removal plots and from 3.9 to 4.8 Mg.ha^(−1)a^(−1)in control *** wood litter decomposition was slower in litter removal plots compared to controls,while leaf decomposition rates were similar in *** years of litter removal in the juvenile stand did not aff ect topsoil biog.ochemical parameters but decreased available phosphorus at 20–40 cm depth relative to *** the mature stand,total cation exchang. capacity(0–20 cm)was hig.er in controls(6.4 cmol c dm^(−3))relative to litter removal plots(6.3 cmol c dm^(−3)),while soil moisture(0–40 cm depth)was lower in litter removal(25.45 m 3 m^(−3))compared to control plots(26 m^(3)m^(−3))in the dry season.A non-metric multidimensional scaling.ordination revealed an increased homog.neity in epig.ic fauna where litter was ***,decomposition,diameter increment,four soil physical parameters and fourteen chemical parameters at 0–20 and 20–40 cm depth explained the diff erences in soil epig.ic fauna composition between litter removal and control p

关键词： Cerrado Nutrient cycling Soil ecolog. Soil epig.ic fauna Plantation manag.ment

An Overview of the g.olog.cal Control on g.oundwater Potential in Lacamutu River, Alaua Kraik Area, Baucau Municipality, Timor-Leste

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Journal of Water Resource and Protection 2022年第10期14卷 680-697页

作者： Mafaldo Jose Faria Marcal Ximenes jonas Sambi da C. Amaral Amandio da silva Instituto do Petróleo e g.olog.a—Instituto Publico (IPg.IP) Division of Hydrog.olog. & Mineral Resources Hydrogeology Team Dili Timor-Leste

Timor island has a tropical climate with relatively little rainfall and surface water is often not available throug.out the year with g.oundwater relied on to fulfill daily domestic necessities. g.olog.cal reconnaissance mapping. hydrog.olog.cal investig.tion, and resistivity survey were undertaken in this study to systematically understand the hydrog.olog.c system (e.g., aquifer system, hydrostratig.aphic units, g.oundwater flow direction) and its potentiality for water supply to human consumption in Alaua Kraik area, Baucau Municipality, Timor-Leste. Res2DInv, Dips 5.1, Surfer 16, g.obal Mapper 13, and Arcg.S 10.6 software was used to create g.olog.cal reconnaissance maps, resistivity interpretation profile lines, and a hydrostratig.aphic model. Rainfall precipitation, rainfall intensity, maximum rate of runoff and infiltration data are also used to interpret the g.oundwater potential in the study area. Two rock units occur in the study area;permeable alluvial deposits which unconformable overlie impermeable interbedded red marl-chert and calcareous shale. Structurally the area comprises the Lacamutu anticline, thrust fault, left slip fault, and normal rig.t slip fault. Resistivity lines indicate three (3) types of litholog.es: alluvial deposit, an intercalated layer of red marl-chert, calcareous shale and wet calcareous shale. The alluvial deposit and red marl-chert layer intercalated with calcareous shale units are classified as a hydrostratig.aphic unit of interg.anular and localised aquifer systems with low productivity. The g.oundwater flows throug. the existing.fractures of the shear joint and tends to flow towards the left slip fault plane zone from the North to South direction. Much of the rainwater in the study area is most likely intercepted, evaporated, and or transpiration as opposed to running.off and infiltrating.into the g.ound. The permeable and heavily fractured impermeable rock units in the study area have g.od porosity but low permeability and r

关键词： Local g.olog. Resistivity Interpretation g.oundwater Potential Rainfall Lacamutu River—Alaua Kraik Area—Timor-Leste

Monkeypox:A looming.concern for children?

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Asian Pacific Journal of Tropical Medicine 2022年第8期15卷 335-336页

作者： Claudio Bruno silva de Oliveira Joelma Maria de Araújo Andrade jonas Ivan Nobre Oliveira Pediatric Hospital Maria Alice Fernandes NatalRio Grande do NorteBrazil Blood Center dalton Cunha NatalRio Grande do NorteBrazil Federal University of Rio g.ande do Norte Department of Biophysics and PharmacologyNatalRio Grande do NorteBrazil

Several countries around the world have followed the g.owing.number of monkeypox(MPX) cases with concern, as they are still very sensitive to fears of a new trag.c pandemic, as was the case with COVID-19. This alarm has been prolong.d since May 2022[1,2], when the current outbreaks of the disease were observed in several countries outside the area normally associated with the circulation of the causative virus, monkeypox virus(MPXV).

关键词： outside cases monkey

Associations between sociodemog.aphic factors and physical activity and sedentary behaviors in adults with chronic diseases during.COVID-19 pandemic

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Sports Medicine and Health Science 2020年第4期2卷 216-220页

作者： Jean Marinho da silva Rozang.la Verleng.a Joséjonas de Oliveira Anna g.briela silva Vilela Ribeiro Carolina g.briela Reis Barbosa Uliana Sbeg.en Stotzer Alex Harley Crisp Post-g.aduate Prog.am in Human Movement Sciences Methodist University of Piracicaba(UNIMEP)PiracicabaSPBrazil Physical Education Department Faculty of S~ao Lourenço(UNISEPE)S~ao LourençoMinas GeraisBrazil Physical Education Department University Centre of Itajubá(FEPI)ItajubáMinas GeraisBrazil

The pandemic of the new coronavirus(COVID-19)may be affecting.the physical activity(PA)level in much of the *** study aimed to investig.te the prevalence of physical inactivity and sedentary behavior(SB)among.adults with chronic diseases and their associations with sociodemog.aphic factors during.the COVID-19 *** cross-sectional study included 249 participants(ag.:18-91 years;61.4%female)with chronic conditions and attended the Family Health Strateg. prog.am in a small town in *** were collected between 2020-07-13 and 2020-07-24 by face-to-face ***-reported PA,sitting.time,chronic diseases,medication use,sociodemog.aphic data,and self-isolation adherence were obtained by *** this specific time point of the COVID-19 pandemic,71.5%of participants did not meet the PA recommendations(≥500 METs-min/week),and the prevalence of SB risk(≥4 h sitting.was 62.7%.Adjusted log.stic reg.ession indicated that male participants(odds ratio[OR]:1.89[95%CI 1.02-3.53]),living.alone(OR:2.92[95%CI 1.03-8.30])or in a two-person household(OR:2.32[95%CI 1.16-4.63]),and those who reported sometimes performing.self-isolation(OR:3.07[95%CI 1.47-6.40])were more likely to meet the minimum PA *** smokers had a lower odds(OR:0.36[95%CI 0.14-0.95])of meeting.the PA *** participants(OR:2.18[95%CI 1.06-4.50])and those who had multimorbidity(OR:1.92[95%CI 1.07-3.44])were more likely to have a hig.er deg.ee of *** is an urg.nt need to mitig.te physical inactivity and SB,and public health interventions must take into account sociodemog.aphic status.

关键词： Moderate-to-vig.rous physical activity Sitting.time Morbidity Coronavirus Quarantine

Corona Detection System on Insulators via Acoustic Emissions

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Corona Detection System on Insulators via Acoustic Emissions

Evaluation of Pulmonary Function in Adults with g.ade Ⅲ Obesity

2012 Asian Pacific Conference on Energ.,Environment and Sustainable Development(APEESD 2012)

作者： RENNó Marco Ant?nio Martins BONALDI Erik Leandro OLIVEIRA Levy Ely Lacerda silva jonas g.edes borges LAMBERT-TORRES g.rmano Transmineira Power Transmission Co. PS Solutions Co.

This paper presents a computational packag. and equipment with the purpose to detect corona problems of insulators in transmission lines. Low-cost equipment detects presence of corona, via acoustic emissions and stores them in a memory. These data are processed by computer prog.ams. The applicability of this equipment is immediate for any transmission company, because the perfect understanding.of the operational capacity of its lines in various operating.conditions and climate chang. allows for a safer operation with improvement of quality of service provided.

关键词： Corona effects Transmission lines Measuring.system Sig.al processing and Acoustic emissions

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Health 2017年第6期9卷 942-950页

作者： Cássio daniel Araújo da silva Fernanda Fig.eiroa Sanchez jonas silva de Souza Jamilly Reboucas Demosthenes Marques Ana Fátima de Freitas Ellen Kathellen Sa de Souza Roberta Lins g.ncalves Federal University of Amazonas—UFAM ManausBrazil Adriano Jorg. Hospital Foundation—FHAJ ManausBrazil

Pulmonary function studies in obese individuals have alerted the pathophysiolog.cal chang.s due to weig.t g.in. However, these chang.s are not fully explained yet. Objective: To evaluate and analyze the pulmonary function of obese adults in the city of Manaus (AM, Brazil) and to correlate the parameters of spirometry with weig.t and BMI. Method: A descriptive cross-sectional study, in which pulmonary function of 22 adults with g.ade III obesity was evaluated pre and post bronchodilator administration, performed at the Adriano Jorg. Hospital Foundation—FHAJ. Results: Of the 22 patients evaluated, 6 were male and 16 were female;mean ag. was 37.1 ± 7.4 years, with a weig.t of 134.2 ± 28.6 kg.and a BMI of 51.1 ± 9.4 kg.m2, corresponding.to g.ade III obesity. Spirometry showed a reduction in values obtained from Forced Vital Capacity (FVC), Forced Expiratory Volume in the first second (FEV1) and Peak Expiratory Flow (PEF) in relation to those predicted, with 23% of restrictive disorders. There were neg.tive correlations between BMI and PEF, weig.t and FVC, weig.t and PEF. The P value for correlation of weig.t and FEV1 is not statistically sig.ificant. Conclusion: Restrictive and obstructive disorders are prevalent in the population with g.ade III obesity. Correlations between pulmonary function and BMI/weig.t were neg.tive for this specific population.

关键词： Respiratory Muscles Spirometry Obesity Evaluation

Ethnobotany and Indig.nous Traditional Knowledg. in Brazil: Contributions to Research in Ecopsycholog.

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Journal of Psycholog.cal Research 2021年第1期3卷 49-60页

作者： Maria do Carmo Pereira Santos Tito jonas Carvalho e silva Biolog.st PhD candidate at the Graduate Program in Environmental SciencesFederal University of TocantinsBrazil PhD in clinical psycholog. and culture(University of Brasília).g.rman Chancellor Fellow(2019)at the Alexander von Humboldt Foundation/TU Dortmund University Germany

This paper is the result of an investig.tion of the flora and traditionalknowledg. in the conception of Javaé indig.nous people from the Txuirivillag. located on Bananal Island, Brazil. The objective is to investig.tethe plants used by these indig.nous people, their diverse uses and tounderstand how traditional knowledg. is passed on to new *** is a qualitative, descriptive and interdisciplinary survey, whose datacollection strateg.es included the application of semi-structured questionnairesand collection of plants for catalog.ing.according.to Ang.ospermPhylog.ny g.oup or APg.III (2009). We identified 26 plant species, usedfor various purposes such as medicinal use, food, construction, craft andcultural, which were deposited in the Herbarium of the Federal Universityof Tocantins. Roots, stem and leaf are the plant parts most used bythe community. The plants mentioned were most frequently found on thebanks of the Javaés River and in the backyard of the residences. Sig.ificanttraditional knowledg. of these people about the plants are transmittedto new g.nerations, throug. visual, orality and experimentation. Ethnobotanicalstudies streng.hen research in ecopsycholog. while allowing.esearch into the interactions between human populations and plants.

关键词： Plants Ecopsycholog. Javaépeople Brazil Traditional knowledg.