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Additions of landscape metrics improve predictions of occurrence of species distribution models

Journal of Forestry Research 2017年第5期28卷 963-974页

作者： rica hasui Vinícius X.Silva Rogrio G.T.Cunha Flavio N.Ramos Milton C.Ribeiro Mario Sacramento Marco T.P.Coelho Diego G.S.Pereira Bruno R.Ribeiro Laboratório de Ecologia de Fragmentos Florestais(ECOFRAG) Instituto de Ciência da NaturezaUniversidade Federal de Alfenas Laboratório de Ecologia Espacial e Conservao(LEEC) Departamento de EcologiaUNESP Estao de Hidrobiologia e Piscicultura de Furnas–EHPF Programa de Pós-Graduao em Ecologia e Evoluo da Universidade Federal de Goiás Universidade Federal de Goiás Departamento de Ciências Florestais Universidade Federal de LavrasCmpus Universitário

Species distribution models are used to aid our understanding of the processes driving the spatial patterns of species’ habitats. This approach has received criticism, however, largely because it neglects landscape metrics. We examined the relative impacts of landscape predictors on the accuracy of habitat models by constructing distribution models at regional scales incorporating environmental variables (climate, topography, vegetation, and soil types) and secondary species occurrence data, and using them to predict the occurrence of 36 species in 15 forest fragments where we conducted rapid surveys. We then selected six landscape predictors at the landscape scale and ran general linear models of species presence/absence with either a single scale predictor (the probabilities of occurrence of the distribution models or landscape variables) or multiple scale predictors (distribution models + one landscape variable). Our results indicated that distribution models alone had poor predictive abilities but were improved when landscape predictors were added; the species responses were not, however, similar to the multiple scale predictors. Our study thus highlights the importance of considering landscape metrics to generate more accurate habitat suitability models.

关键词： Ecological niche model Generalized linear models Habitat suitability Landscape structure Maxent

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Skew Incidence Rings and the Isomorphism Problem

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Algebra Colloquium 2022年第3期29卷 419-426页

作者： Érica Z.Fornaroli Departamento de Matemática Universidade Estadual de Maringá Maringá-PRCEP:87020-900Brazil

Let X be a finite partially ordered set,R an associative unital ring andσan endomorphism of *** describe some properties of the skew incidence ring I(X,R,σ)such as invertible elements,idempotents,the Jacobson radical and the ***,if two skew incidence rings I(X,R,σ)and I(Y,S,τ)are isomorphic and the only idempotents of R and S are the trivial ones,we show that the partially ordered sets X and Y are isomorphic.

关键词： units idempotents Jacobson radical center isomorphisms

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Convergent Agency:Encouraging Transdisciplinary Approaches for Effective Climate Change Adaptation and Disaster Risk Reduction

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International Journal of Disaster Risk Science 2016年第4期7卷 430-435页

作者： América Bendito Edmundo Barrios Department of Civil Engineering Universidad de Los Andes World Agroforestry Centre(ICRAF)

Three recent global agreements have been established to facilitate the implementation of global-level responsibilities to deal with disaster risk reduction(DRR),human development,and climate change adaptation(CCA)*** these agreements have a common goal of reducing social,economic,and environmental vulnerability,they have been developed by largely independent communities of *** has limited cross-fertilization despite the inherent multidimensional nature of global challenges and the considerable thematic *** argue that developing a transdisciplinary strategy that effectively integrates disciplines,approaches,and knowledge systems will lead to greater and more sustainable impacts,together with a more efficient use of financial *** approaches should be encouraged during planning of future development efforts so that risk reduction is conducted simultaneously with *** processes are central to generating contextsensitive knowledge to support decisions on CCA and DRR options that minimize trade-offs and maximize synergies and complementarities required to guide sustainable development ***,building codes together with climate and risk-smart research,education,and awareness raising,are identified as priority entry points to materialize the blending of DRR and CCA approaches and effectively reduce risk while mitigating and adapting to climate change.

关键词： Building codes Climate change adaptation Disaster risk reduction Sustainable development goals Transdisciplinary knowledge

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Assessing Potential Earthquake Loss in Me′rida State, Venezuela Using Hazus

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International Journal of Disaster Risk Science 2014年第3期5卷 176-191页

作者： América Bendito Jesse Rozelle Douglas Bausch Civil Engineering Department Universidad de Los AndesMe´rida 5101Venezuela Mitigation Division Federal Emergency Management Agency(FEMA)Region VIIIDenverCO 80225USA

The focus of the Hazus earthquake model has been largely U.S. centric due to a lack of standardized building-infrastructure data formats applicable *** a combined effort between FEMA Region VIII and the Universidad de Los Andes, Venezuela, the present study uses the Hazus 2.1 software to simulate earthquake loss estimations for Venezuela. Population totals and demographic distributions were developed using Oak Ridge National Labs Landscan 2008 population data and the census 2011 for Venezuela. The accuracy of the model was further enhanced for Me′rida State, located in western Venezuela, by collecting, incorporating, and developing region and specific inventories including soil maps, liquefaction and landslide susceptibility studies, demographic data, and building inventory information. We used USGS Shake Maps scenarios for two potential earthquake events with peak ground accelerations proposed within Performance Based Seismic Engineering of Buildings, VISION 2000 recommendations. The region has not witnessed an earthquake with a magnitude greater than M 7 in the last120 years. Given the historical record of seismicity and the seismotectonics in the region, it becomes increasingly important to understand the potential implications from moderate to large earthquakes in Me′rida State, Venezuela.

关键词： Disaster loss estimation Earthquake damage Hazus Seismic risk Venezuela

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Natural enemies depend on remnant habitat size in agricultural landscapes

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Journal of Forestry Research 2015年第2期26卷 469-477页

作者： Mainara Xavier Jordani erica hasui Vinicius Xavier da Silva Laboratorio de Ecologia Animal Departamento de Zoologia e BotanicaUniversidade Estadual Paulista-UNESPRua Cristovao Colombo2265Jardim NazarethSao Jose Do Rio PretoSP CEP 15054-000Brazil Laboratorio de Ecologia de Fragmentos do Sul de Minas Gerais-ECOFRAG Instituto Ciencias da NaturezaUniversidade Federal de Alfenas-UNIFAL–MGRua Gabriel Monteiro da Silva700CentroAlfenasMG CEP 37130-000Brazil

In recent decades,the consequences of habitat fragmentation have been of growing concern,because it is particularly important to understand how fragmentation may affect biodiversity,an ecological *** tested two hypotheses：（1） that natural fragment size in agricultural landscapes indirectly affects the herbivore through effects on natural predator populations;and（2） predator activity into the crop reduces along the distance from the natural fragment *** 2008 and 2009,we conducted our study in seven forest remnants and in surrounding coffee plantations（fragments ranged from 6 to 105 ha,mean 49.28 ± 36.60 ha） in Southern Minas Gerais,*** were sampled by point counts,and insect predation was evaluated by using an artificial insect model（Koh and Menge 2006）.Our results suggest that although there were many potential predators（e.g.,wasps,ants,birds,and mammals）,birds were the most important taxon *** covariance analysis supported the hypothesis that patch size affected the number of larvae predation by overall taxi,but there was no support for a distance *** findings suggest that natural enemies’ ecological service（mainly from birds） declined with remnant reduction,which has implications not only for human welfare,but also in strengthening the economic justifications for conserving the remaining natural habitats and biodiversity in agricultural landscapes.

关键词： Ecosystem service Fragmentation Isolation Insectivore Predation

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Development of conversion therapy for advanced hepatocellular carcinoma

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Hepatobiliary Surgery and Nutrition 2023年第3期12卷 453-456页

作者： Ryota Matsuki Masaharu Kogure Nobuhiro hasui Hirokazu Momose Yutaka Suzuki Yoshihiro Sakamoto Department of Hepato-Biliary-Pancreatic Surgery Kyorin University HospitalShinkawaMitaka CityTokyoJapan

Although the number of hepatocellular carcinoma(HCC)patients is decreasing due to the development of hepatic anti-virus therapy,it remains a leading cause of cancer-related death *** recent development of systemic or locoregional therapy for advanced or unresectable HCC has enabled advanced HCC to be downstaged,and reports of conversion therapy have increased;however,many clinical and scientific subjects rely on the therapeutic strategies of advanced *** is a need to assess the evidence and develop clinical guidelines for conversion therapy for HCC;therefore,the Chinese Expert Consensus on Conversion Therapy for Hepatocellular Carcinoma(2021 Edition),consisting of 16 statements,has been developed for clinical practice(1).This consensus addresses treatment strategies for both technically and oncologically unresectable *** applaud Chinese establishment of this comprehensive and cutting-edge consensus on the treatment of advanced HCC.

关键词： Hepatocellular carcinoma(HCC) conversion therapy Chinese expert consensus

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Molecular detection and genetic diversity of Dientamoeba fragilis and Enterocytozoon bieneusi in fecal samples submitted for routine parasitological examination

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Asian Pacific Journal of Tropical Medicine 2021年第2期14卷 73-77页

作者： ThaináValente Bertozzo érica Boarato David Ana Paula Oliveira-Arbex Semíramis Guimarães Department of Parasitology Institute of BioscienceSão Paulo State University(UNESP)BotucatuSPBrazil Tropical Diseases Postgraduate Program Medical SchoolSão Paulo State University(UNESP)BotucatuSPBrazil Sagrado Coração University(USC) Department of Health SciencesBauruSPBrazil Integrated Faculties of Bauru(FIB) BauruSPBrazil

Objective:To detect Dientamoeba(D.)fragilis and Enterocytozoon(E.)bieneusi and to assess their genetic characteristics in stool samples submitted for routine examination in a clinical laboratory in Southeastern ***:In this survey,348 stool samples from female and male individuals with age ranging from 0 to≥55 years were analyzed by PCR amplifying and sequencing based on the small subunit ribosomal RNA(SSU r RNA)gene of *** and the internal transcribed spacer of ***:*** and *** isolates were observed in 2.29%(8/348)and 4.59%(16/348)of the samples,*** parasites were detected in stool samples from individuals of both genders,including young children under nine until adults over 55 years *** statistically significant differences were *** *** isolates were classified as genotype 1 and *** isolates included genotypes D(n=15)and A(n=1).Conclusions:The findings provide relevant findings on occurrence and genetic diversity of *** and ***,pointing to the need for the diagnosis of these parasites in routine examinations in clinical *** addition to sensitive diagnostic methods,it is mandatory that these parasites be considered relevant for physicians and laboratory staff.

关键词： Dientamoeba fragilis Enterocytozoon bieneusi Clinical laboratory PCR Genotyping

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c-Abl kinase at the crossroads of healthy synaptic remodeling and synaptic dysfunction in neurodegenerative diseases

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Neural Regeneration Research 2023年第2期18卷 237-243页

作者： Daniela A.Gutiérrez América Chandía-Cristi María JoséYáñez Silvana Zanlungo Alejandra R.Alvarez Cell Signaling Laboratory Department of Cellular and Molecular BiologyCenter for Aging and Regeneration(CARE)Millennium Institute on Immunology and ImmunotherapyBiological Sciences FacultyPontificia Universidad Católica de ChileSantiagoChile School of Medical Technology Health Sciences FacultyUniversidad San SebastianSede Los LeonesSantiagoChile Department of Gastroenterology Faculty of MedicinePontificia Universidad Católica de ChileSantiagoChile

Our ability to learn and remember depends on the active formation,remodeling,and elimination of ***,the development and growth of synapses as well as their weakening and elimination are essential for neuronal *** structural reorganization of synaptic complexes,changes in actin cytos keleton and organelle dynamics,as well as modulation of gene expression,determine synaptic *** has been proposed that dys regulation of these key synaptic homeostatic processes underlies the synaptic dysfunction observed in many neurodegenerative *** is known about downstream signaling of activated N-methyl-D-aspartate andα-amino-3-hydroxy-5-methyl-4-isoazolepro pionate receptors;howeve r,other signaling pathways can also contribute to synaptic plasticity and long-lasting changes in learning and *** non-receptor tyrosine kinase c-Abl(ABL1)is a key signal transducer of intra and extracellular signals,and it shuttles between the cyto plasm and the *** review focuses on c-Abl and its synaptic and neuronal ***,we discuss the evidence showing that the activation of c-Abl can be detrimental to neurons,promoting the development of neurodegenerative ***,c-Abl activity seems to be in a pivotal balance between healthy synaptic plasticity,regulating dendritic spines remodeling and gene expression after cognitive training,and synaptic dysfunction and loss in neurodegenerative ***,c-Abl genetic ablation not only improves learning and memory and modulates the brain genetic program of trained mice,but its absence provides dendritic spines resiliency against *** re,the present review has been designed to elu cidate the common links between c-Abl regulation of structural changes that involve the actin cytos keleton and organelles dynamics,and the transc riptional program activated during synaptic *** summarizing the recent discove ries on c-Abl functions,we aim to provide an overview of how

关键词： actin cytoskeleton activity-dependent plasticity Alzheimer's disease c-Abl dendritic spines learning synapse synaptic plasticity transcription tyrosine kinase

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Generation and Control of Turbulences in a Wind Tunnel

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Open Journal of Fluid Dynamics 2016年第4期6卷 453-471页

作者： América Torres Roberto Tapia Antonio Ramos División de Estudios de Posgrado Facultad de Ingeniería Eléctrica Universidad Michoacana de San Nicolás de Hidalgo Morelia México

In this paper, the generation and control of turbulences in a wind tunnel, for design, analysis and testing of test objects are proposed. Modifications to the wind tunnel are made in order to generate the turbulences in the test chamber. Specifically, for the turbulence analysis, the reflective symmetry concept is used in order to group the different turbulences cases generated in the wind tunnel test chamber. The Ansys software is used in order to model and analyze the wind tunnel. Specific platform or module known as Fluent is used for the analysis of the turbulence generated in the wind tunnel. To design proposal of a wind tunnel capable to generate and controlling turbulences is exposed in this paper. For this, the controller design and verification are performed by means of simulations. To obtain the control law structure, the inversion concept is used. The proposed control law is validated via a co-simulation implemented in the Simplorer module, with the aim of combining the power electronics part, controller and engine, with the proposed model wind tunnel.

关键词： Wind Tunnel Turbulence Control

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影视欣赏应用于留学生汉语学习问题研究——以马达加斯加留学生为例

影视欣赏应用于留学生汉语学习问题研究——以马达加斯加留学生为...

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作者： NAHARISOA rica（苏丽甘）江西师范大学

学位级别：硕士

从人类学习语言的规律上看,任何一个人在学习母语时都是由言语到文字,即由听说到读写,由听觉形象转化为视觉形象。本文为了研究影视欣赏应用于留学生汉语学习问题,笔者首先选择了40位马达加斯加留学生作为研究对象。其次进行了关于马达... 详细信息

从人类学习语言的规律上看,任何一个人在学习母语时都是由言语到文字,即由听说到读写,由听觉形象转化为视觉形象。本文为了研究影视欣赏应用于留学生汉语学习问题,笔者首先选择了40位马达加斯加留学生作为研究对象。其次进行了关于马达加斯加留学生欣赏中文影视的现状和学习汉语兴趣强度的问卷调查。调查结果初步表明,影视作为语言载体能够更好地激发学生的学习兴趣,影视辅助教学比单纯依靠传统教材教学更能提高留学生的汉语水平。统计结果还表明,由于影视语言的真实性,马达加斯加留学生对口语和听力的语体知识有了更深的理解,而且在语音语调和非语言行为方面有了更强的意识。影视应用于马达加斯加留学生汉语学习能够让马达加斯加留学生在真实生动的语言环境中提高汉语交际能力,了解中国社会文化知识,提高语言学习的效率。因此,研究影视应用在留学生汉语学习和汉语交际能力培养中的作用具有积极的理论和实践意义。这些结论对外汉语教师在汉语课堂上使用影视辅助来提高马达加斯加留学生口语、听力及汉语学习兴趣提供了理论和实践依据。论文最后对汉语课堂如何使用影视进行教学提出了一些建议。

关键词：影视资料教学研究汉语学习技能应用

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