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Mine tailings storage dams modify upstream headwater fish assemblages

Water Biology and Security 2023年第2期2卷 32-42页

作者： gilberto n.salvador Robert M.Hughes Fabio Vieira Raphael Ligeiro Luciano F.A.Montag Ecology and Conservation Laboratory(LABECO) Federal University of ParaBiological Sciences InstituteRua Augusto Correa01GuamaCaixaBelemPA479Brazil Fish Ecology and Conservation Laboratory(Eco-Peixes) Federal University of Minas GeraisBiological Sciences InstituteAv.Antonio Carlos6627Belo HorizonteMGCEP:31.270-901Brazil Amnis Opes Institute 2895 SE GlennCorvallisOR97333USA Department of Fisheries Wildlife&Conservation SciencesOregon State UniversityCorvallisOR97331USA Zoology Department Federal University of Minas GeraisBiological Sciences InstituteAv.Antonio Carlos6627CEP:31.270-901Belo HorizonteMGBrazil

Riverscape connectivity is a critically important component determining the ecological condition of lotic *** evaluated changes in fish assemblages caused by the loss of connectivity by mine tailings storage dams(TSDs),hypothesizing that headwater fish assemblages are restructured by TSDs located downstream,even though the upstream habitats are not *** used standard methods to collect fish in 24 first to third order sites,with half draining to TSDs(dammed)and the other half free from this impact(undammed).To identify differences between treatments,we used PERMAnOVA to test both environmental variables and ichthyofauna composition(Bray-Curtis similarity index)and evaluated the biological metrics that most influenced assemblage composition *** expected,we observed no difference between treatments for environmental variables,but we did observe differences in fish assemblage *** also observed five metrics with lower values in dammed streams(richness and abundance of intolerant species,siluriform richness,and abundance of Pareiorhaphis *** and Trichomycterus brasiliensis)and two metrics with higher values in dammed streams(perciform richness and abundance of Oligosarcus argenteus).We believe these changes resulted from of stream fragmentation by TSDs,in addition to source-sink mechanisms and conclude that mine TSDs located downstream change headwater fish assemblages,an impact often neglected in biomonitoring and bioassessment studies.

关键词： Habitat fragmentation Source-sink dynamics Iron ore mining Rio Doce basin

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Ambroxol,the cough expectorant with neuroprotective effects

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neural Regeneration Research 2024年第11期19卷 2345-2346页

作者： Kristin Patzwaldt salvador Castaneda-Vega Werner Siemens Imaging Center Department of Preclinical Imaging and RadiopharmacyEberhard Karls University TuebingenTuebingenGermany Department of nuclear Medicine and Clinical Molecular Imaging University Clinic TuebingenTuebingenGermany

Ambroxol hydrochloride(2-amino-3,5-dibromo-n-methylbenzylamine hydrochloride)has been used as a mucolytic agent in the treatment of respiratory diseases since the late *** effects on mucus membranes such as mucus disruption,increased mucus production,and low toxicity profile were addressed in its original German patent in *** first described properties have kept Ambroxol available worldwide and over the counter in the pharmaceutical market to this day.

关键词： protective agent German

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Three-dimensional seismic face stability of shield tunnels inundrained clay

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Underground Space 2024年第2期15卷 26-43页

作者： Milad Davoodi salvador Senent Amin Keshavarz Rafael Jimenez Civil Engineering Department School of EngineeringPersian Gulf UniversityBushehr ***Iran Universidad Polite´cnica de Madrid C/Prof.Aranguren s/nMadrid 28040Spain

Tunnel face stability has received increasing research interest over the past few decades. However, computing time-efficient and safethree-dimensional solutions under seismic loading is still an unsolved problem, while case studies indicate that seismic loading can be onecritical destabilizing factor affecting tunnel stability. The primary objective of this work is to fill this gap in knowledge by providing compromisingand computationally efficient solutions, along with their respective lower and upper bounds, to compute face stability underseismic conditions. The analyses employ the finite element limit analysis method to evaluate the limit support pressure in undrained clay,considering horizontal pseudo-static seismic forces pointing outwards from the face. Moreover, the analyses employ both constant andlinearly increasing shear strengths with depth. The results are summarized as dimensionless stability charts and tables to facilitate theirinterpretation and future use for tunnel design. A new design equation has been developed to evaluate the stability of the tunnel faceconsidering the effect of seismic forces. Additionally, the effects of different parameters on the shape of the failure mechanism have beeninvestigated by analysing the distribution of shear dissipation.

关键词： Tunnel face stability Finite element limit analysis Undrained clay Seismic stability

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Exploring kidney biopsy findings in congenital heart diseases:Insights beyond cyanotic nephropathy

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World Journal of nephrology 2024年第1期13卷 25-32页

作者： Jose Daniel Juarez-Villa Iván Zepeda-Quiroz Sebastián Toledo-Ramírez Victor Hugo Gomez-Johnson Francisco Pérez-Allende Brian Ricardo Garibay-Vega Francisco E Rodríguez Castellanos Bernardo Moguel-González Edgar Garcia-Cruz salvador Lopez-Gil Department of nephrology Instituto Nacional de Cardiología Ignacio ChavezMexico City 14080Mexico Congenital Heart Disease Instituto Nacional de Cardiología Ignacio ChavezMexico City 14080Mexico

BACKGROUnD The association between congenital heart disease and chronic kidney disease is well *** mechanisms of kidney damage associated with congenital heart disease have been *** etiology of kidneydisease has commonly been considered to be secondary to focal segmental glomerulosclerosis(FSGS),however,this has only been demonstrated in case reports and not in observational or clinical *** To identify baseline and clinical characteristics,as well as the findings in kidney biopsies of patients with congenital heart disease in our *** This is a retrospective observational study conducted at the nephrology Depart-ment of the national Institute of Cardiology“Ignacio Chávez”.All patients over 16 years old who underwent percutaneous kidney biopsy from January 2000 to January 2023 with congenital heart disease were included in the *** Ten patients with congenital heart disease and kidney biopsy were *** average age was 29.00 years±15.87 years with pre-biopsy proteinuria of 6193 mg/24 h±6165 mg/24 *** most common congenital heart disease was Fallot’s tetralogy with 2 cases(20%)and ventricular septal defect with 2(20%)*** the 10 cases,one case of IgA nephropathy and one case of membranoproliferative glomerulonephritis associated with immune complexes were found,receiving specific treatment after histopathological diagnosis,delaying the initiation of kidney replacement *** remaining 8 cases(80%),one case of FSGS with perihilar variety was found,while the other 7 cases were non-specific *** Determining the cause of chronic kidney disease can help in delaying the need for kidney replacement *** 2 out of 10 patients in our study,interventions were performed,and initiation of kidney replacement therapy was *** studies are needed to determine the usefulness of kidney biopsy in patients with congenital heart disease.

关键词： Renal biopsy Congenital heart disease Chronic kidney disease Focal segmental glomerulosclerosis

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Combination of Interleaved Single-input Multiple-output DC-DC Converters

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CSEE Journal of Power and Energy Systems 2022年第1期8卷 132-142页

作者： Eladio Dur´an Aranda salvador P´erez Litr´an Mar´ıa Bella Ferrera Prieto Electronic Engineering Computer Systems and Automation DepartmentUniversity of HuelvaHuelvaSpain Electrical and Thermal Engineering Design and Projects DepartmentUniversity of HuelvaHuelvaSpain

This paper analyses,simulates and verifies an experimental prototype of a four-phase interleaved DC-DC *** is based on a SEPIC-Cuk *** developed prototype has been used in single-input multiple-output(SIMO)*** combined converter allows obtaining dual output voltages of the same value,from a single input DC voltage and with only a power *** interleaved DC-DC converters achieve a better dynamic response and low ripple,maintaining their *** converter is connected in parallel,thereby managing their losses by distributing them between more components,which facilitates the thermal management of the multiphase converter and allows handling high power values in small sizes with respect to solutions for a single *** control strategies were applied:synchronous operation mode(SOM)and interleaved operation mode(IOM).The simulation results allow the comparison of both operational modes,verifying that the IOM presents advantages with respect to the ripple at the input and output *** experimental prototype was designed for a distributed power architecture and bipolar DC microgrid(MG).

关键词： Bipolar DC DC-DC converter interleaved

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Optimizing urban traffic control using a rational agent

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Journal of Zhejiang University-Science C(Computers and Electronics) 2014年第12期15卷 1123-1137页

作者： salvador IBARRA-MARTínEZ José A.CASTn-ROCHA Julio LARIA-MEnCHACA Engineering School Autonomous University of Tamaulipas

This paper is devoted to developing and evaluating a set of technologies with the objective of designing a methodology for the implementation of sophisticated traffic lights by means of rational agents. These devices would be capable of optimizing the behavior of a junction with multiple traffic signals, reaching a higher level of autonomy without losing reliability, accuracy, or efficiency in the offered services. In particular, each rational agent in a traffic signal will be able to analyze the requirements and constraints of the road, in order to know its level of demand. With such information, the rational agent will adapt its light cycles with the view of accomplishing more fluid traffic patterns and minimizing the pollutant environmental emissions produced by vehicles while they are stopped at a red light, through using a case-based reasoning(CBR) adaptation. This paper also integrates a microscopic simulator developed to run a set of tests in order to compare the presented methodology with traditional traffic control methods. Two study cases are shown to demonstrate the efficiency of the introduced approach, increasing vehicular mobility and reducing harmful activity for the environment. For instance, in the first scenario, taking into account the studied traffic volumes, our approach increases mobility by 23% and reduces emissions by 35%. When the roads are managed by sophisticated traffic lights, a better level of service and considerable environmental benefits are achieved, demonstrating the utility of the presented approach.

关键词： Rational agents Traffic light control Optimization Traffic mobility

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How large are the extinct giant insular rodents? new body mass estimations from teeth and bones

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Integrative Zoology 2014年第2期9卷 197-212页

作者： Blanca MOnCUnILL-SOLÉ Xavier JORDAnA nekane MARÍn-MORATALLA salvador MOYÀ-SOLÀ Meike KÖHLER Catalan Institute of Paleontology Miquel Crusafont Autonomous University of BarcelonaBellaterraSpain ICREA at Catalan Institute of Paleontology Miquel Crusafont Autonomous University of BarcelonaBellaterraSpain Department of Ecology University of BarcelonaSpain

The island rule entails a modification of the body size of insular mammals,a character related with numerous biological and ecological *** the Miocene to human colonization(Holocene),Mediterranean and Canary Islands were unaltered natural ecosystems,with paleofaunas formed with endemic giant rodents among other *** aim is to create methods to estimate the body masses of fossil island rodents and address the nature of ecological pressures driving the island *** created regression equations based on extant ro-dent data and used these to estimate the body masses of the extinct *** results show strong correlations between teeth,cranial and postcranial measurements and body mass,except for the length of the long bones,the transversal diameter of the distal tibia and the anteroposterior diameter of the proximal tibia,where the equa-tions were less *** use of equations obtained from a more homogeneous group(suborder and family)is preferable when analyzing the area of the first *** new regressions were applied to estimate the body masses of some Mediterranean and Canarian fossil rodents(Canariomys,*** 1.5 kg and *** 1 kg;Hypnomys,*** 230 g and *** 200 g;and Muscardinus cyclopeus 100 g).Our results indi-cate that under absence of predation,resource availability(island area)is the key factor that determines the size of the Canariomys ***,under presence of specialized predators(birds of prey),body size evolution is less pronounced(Hypnomys sp.).

关键词： body mass Canariomys Hypnomys island rule Muscardinus cyclopeus

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Ferriere nord棒卷生产线:工业化运行中的第一台工字轮式卷取设备

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钢铁 2005年第1期40卷 77-79页

作者： n.Redolfi G.salvador 达涅利摩根沙玛公司

安装在现有棒材轧机上的 Ferriere nord工字轮式棒材卷取线是 Danieli Morgardshamm ar工字轮式棒材卷取技术在世界上的第一次工业性应用。该项创新工艺是以热轧棒材无扭卷成高度紧凑 /超重棒材卷为基础 ,在喂给下游冷轧生产线时可提供... 详细信息

安装在现有棒材轧机上的 Ferriere nord工字轮式棒材卷取线是 Danieli Morgardshamm ar工字轮式棒材卷取技术在世界上的第一次工业性应用。该项创新工艺是以热轧棒材无扭卷成高度紧凑 /超重棒材卷为基础 ,在喂给下游冷轧生产线时可提供安全、无废品开卷 ,同时使其能够将热轧机上直接送来的、“轧制”状态的热轧盘卷喂入生产线。这意味着不再需要传统的离线操作 ,比如开卷、矫直和重新卷取。介绍的 Ferriere nord工字轮式棒材卷取线自 2 0 0

关键词：工字轮式棒材卷取线无扭卷取无废品开卷高度紧凑的盘卷大重量盘卷

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Current Zoology 2024年第1期70卷 1-12页

作者： Lucia V.Sommaro Juan J.Martinez Marina B.Chiappero Andrea R.Steinmann Cristina n.Gardenal JoséW.Priotto Laboratorio de Ecologia Evolutiva y Biogeografia Instituto de Ecorregiones Andinas(INECoA)Universidad Nacional de Jujuy-Consejo Nacional de Investigaciones Cientificas y Tecnicas(CONICET)San Salvador de JujuyJujuyArgentina Instituto de Diversidad y Ecologia Animal(IDEA) Consejo Nacional de Investigaciones Cientificas y Técnicas(CONICET)and Universidad Nacionalde CordobaCordobaArgentina Catedra de Genética de Poblaciones y Evolucion Facultad de Ciencias ExactasFisicas y NaturalesUniversidad Nacional de CordobaCordobaArgentina Grupo de Investigaciones en Ecologia Poblacional y Comportamental(GIEPCO) Instituto de Ciencias de la TierraBiodiversidad y Ambiente(ICBiA)Universidad Nacional de Rio Cuarto-Consejo Nacional de Investigaciones Cientificas y Técnicas(CONICET)Rio CuartoCordobaArgentina

The sex-biased dispersal and kinship dynamics are important factors shaping the spatial distribution of individuals and are key parameters affecting a variety of ecological and evolutionary ***,we studied the spatial distribution of related individuals within a population of corn mice Calomys musculinus in a seasonal cycle to infer dispersal *** sampling was carried out from spring 2005 to winter 2006 in field borders of intensively managed *** data from 346 individuals with 9 microsatellites showed spatial genetic structure was weak for males,but not for *** results indicate a complex spatial kinship dynamic of related females across all ***,contrary to our expectations,dispersal distances decrease with the increase of the population ***,male dispersal distances were greater when population abundance increased and thus the availability of active *** disperse greater distances to mate and sire offspring with distant females as a possible inbreeding avoidance *** study shows that *** is capable of much greater scattering distances than previously reported and that dispersal occurs fluidly and without barriers across the *** indirect benefit of dispersal on individual fitness could be related to relaxing the competition in the natal area and increasing the mating *** study highlights the value of combining genetic relatedness,fieldwork observations,and behavioral data to estimate dispersal at a fine geographical scale.

关键词： dispersal distances kinship dynamics microsatellite small mammals spatial autocorrelation

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Inner ear hair cell regeneration A look from the past to the future

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neural Regeneration Research 2013年第24期8卷 2284-2289页

作者： Francisco Santaolalla Carlos salvador Agustín Martínez Jose María Sánchez Ana Sánchez del Rey Department of Otorhinolaryngology Basurto University Hospital Department of Dermatology Ophthalmology and Otorhinolaryngology School of Medicine University of the Basque Country (UPV/EHU)

Most recent studies on regeneration of inner ear hair cells focus on use of stem cells, gene therapy and neurotrophic factors. Cochlear gene therapy has been successfully used in the treatment of neu- rosensory hearing loss. This suggests that cochlear hair cell regeneration is possible. The objective of this paper is to review research and clinical application of inner near hair cell regeneration.

关键词： neural regeneration reviews hearing loss hair cells cochlea genes stem cells viral vectors regeneration neuroregeneration

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