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Estimation of rainfall thresholds for shallow landslides in the Sierra Madre Oriental, northeastern Mexico

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Journal of Mountain Science 2020年第7期17卷 1565-1580页

作者： Jorge a.salinas-Jasso Fernando Velasco-Tapia Ignacio Navarro de León Ricardo a.salinas-Jasso Efraín Alva-Nino Facultad de Ciencias de la Tierra Universidad Autónoma de Nuevo LeónEx-Hacienda de Guadalupe km 8.Carr.Linares-Cerro PrietoLinaresN.L.67700México Secretaría de Desarrollo Sustentable de Nuevo León Washington #2000Col.ObreraMonterreyN.L.64010México

Landslides induced by prolonged rainfalls are frequent mass movements along the northeastern portion of the Sierra Madre Oriental in Mexico,causing significant damage to *** this work,we have studied the connection between rainfall and landslides in the Santa Rosa Canyon,a catchment located in the northeastern Mexico.A landslide database triggered by major storms and hurricanes that have hit the region over the past 30 years was analyzed.A total of 92 rainfall events in the Santa Rosa Canyon were studied to determine the amount of precipitation needed to trigger shallow *** each event the duration(D,in hours)and the cumulated rainfall event(E,in mm)were determined by using historical rainfall data from weather stations located near the study *** have proposed an ED threshold for rainfall-induced landslides with durations 0.5

关键词： Shallow landslides Cumulated rainfall Rainfall thresholds Northeastern Mexico Early warning systems.

阿杜那单抗治疗阿尔茨海默病:药物的加速审批与科研的缓慢进展

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英国医学杂志中文版 2022年第3期25卷 167-168页

作者： Rodrigo a.salinas 王洁(译) 董立羚(校) Departamento de Ciencias Neurológicas Universidad de ChileSantiago de ChileRM 7500922Chile 中国医学科学院北京协和医院神经科

根据美国药品监管机构的新闻报道,2021年6月初,美国食品与药品监督管理局(FDA)宣布对一种单克隆抗体——阿杜那单抗授予上市许可。这是首个以阿尔茨海默病潜在病理机制为靶点的治疗药物这则新闻本应令人振奋,这是对基础及临床科学成果... 详细信息

根据美国药品监管机构的新闻报道,2021年6月初,美国食品与药品监督管理局(FDA)宣布对一种单克隆抗体——阿杜那单抗授予上市许可。这是首个以阿尔茨海默病潜在病理机制为靶点的治疗药物这则新闻本应令人振奋,这是对基础及临床科学成果的认可,却在科学界引发了一场激烈的争论。最终,就该药安全性和有效性提供建议的委员会中有3位专家选择了辞职。

关键词：临床科学阿尔茨海默病单抗治疗阿杜单克隆抗体上市许可新闻报道加速审批

Auxin signaling gets oxidative to promote root hair growth

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Molecular Plant 2024年第5期17卷 696-698页

作者： Victoria Berdion Gabarain Miguel A.Ibeas Hernan salinas-Grenet Jose M.Estevez Fundación Instituto Leloir&IIBBA-CONICET Av.Patricias Argentinas 435Buenos Aires C1405BWEArgentina Centro de Biotecnología Vegetal Facultad de Ciencias de la VidaUniversidad Andres BelloSantiagoChile ANID Millennium Science Initiative ProgramMillennium Nucleus for the Development of Super Adaptable Plants(MN-SAP)SantiagoChile ANID Millennium Science Initiative ProgramMillennium Institute for Integrative Biology(iBio)SantiagoChile

Root hairs(RHs)emerge as cylindrical cell protrusions from the root epidermis in a polar manner,and these outgrows increase the rhizosphere space to acquire water and nutrients,anchor the plant,and interact with various soil *** is one of the key hormones to promote RH growth,and high levels of auxin are directly promoted by low levels of macronutrients in the soil,such as phosphate(Bhosale et al.,2018)and nitrates(Jia et al.,2023).The nutritional signals for roots,which rapidly change in both time and place within the soil,are tightly linked to signaling pathways that execute swifts on cellular processes to adjust to a challenging *** rapid alkalinization factors(RALFs)are peptides that are released outside the cell and act as peptide-hormone *** attach to the extracellular domains of members of the Catharanthus roseus RECEPTOR-LIKE KINASE 1-LIKE family,specifically FERONIA(FER)in conjunction with its co-receptor LORELEI-LIKE-GPIANCHORED PROTEIN 1.

关键词： soil outside alkali

Changes in call properties of Boana pulchella (Anura, Hylidae) in response to different noise conditions

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Current Zoology 2024年第4期70卷 548-556页

作者： Pablo Grenat Maria Ferrero Mariana Baraquet Favio Pollo Manuel Otero Zulma.salinas Nancy Salas Adolfo Martino Ecologia Departamento de Ciencias NaturalesFacultad de Ciencias ExactasFisico-Quimicas y NaturalesUniversidad Nacional de Rio CuartoRutaNacional N°36-km601X5804BYARioCuartoArgentina lnstituto de Ciencias de la Tierra Biodiversidad y Ambiente(ICBIA)UNRC-CONICETRuta Nacional N°36-km 601X5804BYARio CuartoArgentina Cátedra de Botanica General Departamento de Recursos Naturales y AmbienteFacultad de AgronomiaUniversidad de Buenos AiresAv.San Martin 4453Buenos AiresArgentina

The increasing expansion of urban areas leads to the emergence of new noisy environments that can affect animal *** play a crucial role in the mating displays of anurans,and the negative impact of anthropogenic noise-induced auditory masking has been reported in several *** investigated the acoustic variation in 96 males(n=971 calls)of the treefrog Boana pulchella across acoustically undis-turbed sites and different noise conditions,associated with urban areas(URBAN)and roads(ROAD),in Central *** analyzed the effect of anthropogenic noise conditions on 6 temporal(call duration[CD],intercall interval,first and second note duration,internote interval,and call rate)and 3 spectral(dominant frequency of first and second note,frequency difference between them)call *** effects of temperature and size on acoustical variables were *** observed differences in all call attributes among the noise conditions,except for intercall *** exposed to URBAN and ROAD exhibited significant changes in CD,dominant frequency of the second note,and fre-quency difference between *** males had longest internote interval,while ROAD individuals displayed increased first and second note duration and call ***,ROAD males exhibited immediate changes in call rate in direct response to passing heavy *** study emphasizes the impact of anthropogenic noise on the acoustic characteristics of *** *** how animals adapt to noisy environments is crucial in mitigating the adverse effects of urbanization on their communication *** investigations should explore whether the observed call adjustments are effective in avoiding or mitigating the negative consequences of anthropogenic noise on reproductive success.

关键词： acoustic communication advertisement call auditory masking noise pollution road traffic noise.

Post-fire recovery of Puya raimondii, vegetation and birds in the puna of Huascarán National Park, Perú

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Journal of Mountain Science 2024年第1期21卷 20-32页

作者： Mery L.SUNI Giovana P.VADILLO César ARANA Enoc JARA-PENA Letty salinas M.Estela PONCE Paul M.RAMSAY Plant Physiology Laboratory Faculty of Biological SciencesUniversidad Nacional Mayor de San MarcosLima 15081Peru Natural History Museum Universidad Nacional Mayor de San MarcosLima 15072Peru Applied Phytology Laboratory Faculty of Biological SciencesUniversidad Nacional Mayor de San MarcosLima 15081Peru Department of Statistics Faculty of Mathematical SciencesUniversidad Nacional Mayor de San MarcosLima 15081Peru Department of Chemical and Biological Sciences Universidad de las Américas PueblaSan Andrés Cholula CP Cholula CP 72810Mexico

A large fire of 233 ha in Huascarán National Park in Peru provided an opportunity to compare plant and bird responses in burned and nearby unburned zones of the puna. Heights and live diameters of flagship Puya raimondii rosettes(assigned to four broad developmental phases), plant communities(66 species in 24 families and nine growth forms) and bird communities(77 species in six trophic guilds) were monitored after the fire. Although no mortality was observed, Puya raimondii plants were affected by the fire, losing approximately 60% of their photosynthetic area across all developmental phases, but recovered quickly during the first two years after fire. The comparison of Puya rosette recovery after fire was complicated by the changes in live rosette diameter for unburned plants, which showed plasticity of photosynthetic area linked to seasonal and annual fluctuations in precipitation in this relatively dry environment(decreased by 26% for mature adult plants over the study period). Fire caused an immediate change in the density, biomass and composition of vegetation. Although the species present remained similar, their abundances changed significantly immediately after the fire, with notable reductions in dominant tussock grasses. This provided opportunities for other plants, resulting in higher postfire diversity of plant species, genera, families and growth forms. In turn, the changes in vegetation after fire affected the composition of birds according to their trophic guild. Granivores largely disappeared,generalists were mostly unaffected, and other guilds showed a more complex response. As the vegetation recovered, most displaced birds returned within approximately one year.

关键词： Burning Plant biomass Trophic guilds Andes Giant rosette plants

Woody plant taxonomic,functional,and phylogenetic diversity decrease along elevational gradients in Andean tropical montane forests:Environmental filtering and arrival of temperate taxa

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Plant Diversity 2024年第4期46卷 491-501页

作者： Guillermo Bañares-de-Dios Manuel J.Macía Gabriel Arellano Íñigo Granzow-de la Cerda Julia Vega-álvarez Itziar Arnelas Carlos I.Espinosa Norma.salinas Luis Cayuela Departamento de Biología y Geología Física y Química InorgánicaUniversidad Rey Juan CarlosCalle Tulipán s/nMóstolesMadridES-28933Spain Departamento de Biología Área de BotánicaUniversidad Autónoma de MadridCalle Darwin 2MadridES-28049Spain Centro de Investigación en Biodiversidad y Cambio Global(CIBC-UAM) Universidad Autónoma de MadridCalle Darwin 2MadridES-28049Spain Ecology and Evolutionary Biology University of MichiganAnn ArborMI 48109USA Oikobit LLC ***AlbuquerqueNM87120USA Real Jardín Botánico–CSIC Plaza Murillo 2MadridES-28014Spain Departamento de Biología Animal EcologíaParasitologíaEdafología y Química AgrícolaUniversidad de SalamancaCalle Donantes de Sangre s/nSalamancaES-37007Spain Departamento de Biodiversidad Ecología y EvoluciónUniversidad Complutense de MadridCalle JoséAntonio Nováis 12Ciudad UniversitariaES-28040Spain Departamento de Ciencias Biológicas y Agropecuarias Universidad Técnica Particular de LojaA.P.11-01-608 LojaEcuador Sección Química Pontificia Universidad Católica del PerúA.P.Lima 32LimaPeru ECI School of Geography and EnvironmentUniversity of OxfordOX13QYOxfordshireUnited Kingdom Instituto de Investigación en Cambio Global(IICG-URJC) Universidad Rey Juan CarlosCalle Tulipán s/nMóstolesMadridES-28933Spain

Mountains are paramount for exploring biodiversity patterns due to the mosaic of topographies and climates encompassed over short *** research has traditionally focused on taxonomic diversity when investigating changes along elevational gradients,but other facets should be *** first time,we simultaneously assessed elevational trends in taxonomic,functional,and phylogenetic diversity of woody plants in Andean tropical montane forests and explored their underlying ecological and evolutionary *** investigation covered four transects(traversing ca.2200 m a.s.l.) encompassing 114 plots of 0.1 ha across a broad latitudinal range(ca.10°).Using Hill numbers to quantify abundance-based diversity among 37,869 individuals we observed a consistent decrease in taxonomic,functional,and phylogenetic diversity as elevation increased,although the decrease was less pronounced for higher Hill *** exception was a slight increase in phylogenetic diversity when dominant species were *** decrease in taxonomic and functional diversity might be attributed to an environmental filtering process towards highlands,where the increasingly harsher conditions exclude species and functional ***,the differences in steepness decrease between Hill orders suggest that rare species disproportionately contribute to functional *** phylogenetic diversity the shifting elevational trend between Hill orders indicates a greater than previously considered influence in central Andean highlands of tropical lowlands originated species with strong niche conservatism relative to distantly related temperate *** could be explained by a decreasing presence and abundance of temperate,extratropical taxa towards the central Andes relative to northern or southern Andes,where they are more prevalent.

关键词： Altitudinal gradients Andes Environmentalﬁltering Out of the Tropical Lowlands Functional rarity Tropical Niche Conservatism

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由水溶性聚合物制备多功能碳纳米纤维垫

国际纺织导报 2016年第11期44卷 16-18,20页

作者： L.D.Cremar J.Acosta-Martinez A.Villarreal a.salinas L.Wei Y.B.Mao K.Lozano 钟晓慧(译) 王依民(校) 格兰德山谷Texas-Rio大学美国不详

聚合物前驱体成本高、碳化后处理工艺中有机溶剂的应用,以及能源消耗等问题,限制了碳纤维在日常生活中的应用。采用离心力纺丝技术及在酸蒸气中脱水的方法制备非织造纳米纤维垫,并采用低温碳化工艺(t<800℃)制备多功能碳纳米纤维。这种... 详细信息

聚合物前驱体成本高、碳化后处理工艺中有机溶剂的应用,以及能源消耗等问题,限制了碳纤维在日常生活中的应用。采用离心力纺丝技术及在酸蒸气中脱水的方法制备非织造纳米纤维垫,并采用低温碳化工艺(t<800℃)制备多功能碳纳米纤维。这种方法可以制备微孔与中孔的多孔非织造碳纤维织物或纱线。纤维的直径可在几百纳米到几微米之间变化。热物理和微观结构表征表明,化学和热处理过程中的碳化形成了石墨。所制备的纤维表现出较高的导电性和比表面积,以及良好的热稳定性、疏水性和亲油性。

关键词：碳纳米纤维多功能水溶性聚合物离心力纺丝

Microglia regulation of synaptic plasticity and learning and memory

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Neural Regeneration Research 2022年第4期17卷 705-716页

作者： Jessica Cornell Shelbi salinas Hou-Yuan Huang Miou Zhou Graduate College of Biomedical Sciences Western University of Health SciencesPomonaCAUSA

Microglia are the resident macrophages of the central nervous *** possess varied morphologies and *** normal physiological conditions,microglia mainly exist in a resting state and constantly monitor their microenvironment and survey neuronal and synaptic *** the C1 q,C3 and CR3"Eat Me"and CD47 and SIRPα"Don't Eat Me"complement pathways,as well as other pathways such as CX3 CR1 signaling,resting microglia regulate synaptic pruning,a process crucial for the promotion of synapse formation and the regulation of neuronal activity and synaptic *** mediating synaptic pruning,resting microglia play an important role in the regulation of experience-dependent plasticity in the barrel cortex and visual cortex after whisker removal or monocular deprivation,and also in the regulation of learning and memory,including the modulation of memory strength,forgetfulness,and memory *** a response to brain injury,infection or neuroinflammation,microglia become activated and increase in *** microglia change to an amoeboid shape,migrate to sites of inflammation and secrete proteins such as cytokines,chemokines and reactive oxygen *** molecules released by microglia can lead to synaptic plasticity and learning and memory deficits associated with aging,Alzheimer's disease,traumatic brain injury,HIV-associated neurocognitive disorder,and other neurological or mental disorders such as autism,depression and post-traumatic stress *** a focus mainly on recently published literature,here we reviewed the studies investigating the role of resting microglia in synaptic plasticity and learning and memory,as well as how activated microglia modulate disease-related plasticity and learning and memory *** summarizing the function of microglia in these processes,we aim to provide an overview of microglia regulation of synaptic plasticity and learning and memory,and to discuss the possibility of microglia manipul

关键词： aging Alzheimer's disease cognitive deficits experience-dependent plasticity learning and memory mental disorders microglia synaptic plasticity synaptic pruning

Intersections between innate immune response and gastric cancer development

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World Journal of Gastroenterology 2023年第15期29卷 2222-2240页

作者： Franz Villarroel-Espindola Troy Ejsmentewicz Roxana Gonzalez-Stegmaier Roddy A Jorquera Esteban salinas Translational Medicine Unit Instituto Oncologico Fundacion Arturo Lopez PerezSantiago 7500000Metropolitan regionChile

Worldwide,gastric cancer(GC)is the fifth most commonly diagnosed *** has a reduced prevalence but has maintained its poor prognosis being the fourth leading cause of deaths related to *** highest mortality rates occur in Asian and Latin American countries,where cases are usually diagnosed at advanced ***,GC is viewed as the consequence of a multifactorial process,involving the virulence of the Helicobacter pylori(***)strains,as well as some environmental factors,dietary habits,and host intrinsic *** tumor microenvironment in GC appears to be chronically inflamed which promotes tumor progression and reduces the therapeutic *** has been suggested that inflammation assessment needs to be measured qualitatively and quantitatively,considering cell-infiltration types,availability of receptors to detect damage and pathogens,and presence or absence of aggressive *** *** epithelial cells express several Toll-like receptors and determine the first defensive line against pathogens,and have been also described as mediators of ***,other molecules,such as cytokines related to inflammation and innate immunity,including immune checkpoint molecules,interferon-gamma pathway and NETosis have been associated with an increased risk of ***,this review will explore innate immune activation in the context of premalignant lesions of the gastric epithelium and established gastric tumors.

关键词： Gastric cancer Toll-like receptor Helicobacter pylori Nuclear factor kappa B Neutrophils