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Beyond Green

Beijing Review 2024年第36期67卷 22-23页

作者： juan enrique Serrano-Moreno Institute of International Studies University of Chile

What role will Chinese trade and investment play in Latin America's climate and sustainability efforts,particularly in Chile?To address this question,let's explore an unconventional comparison through two recent science fiction films-one from China and one from the U.S.-which offer distinct visions of humanity's future relationship with nature.

关键词： investment Latin humanity

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不同居群红砂的遗传多样性分析

草地学报 2022年第9期30卷 2336-2344页

作者：张旭苏世平师微柠 Alizet Didi dom 马强甘肃农业大学甘肃兰州730070

为了探究不同居群红砂(Reaumuria soogorica)的遗传多样性水平及居群遗传结构。本研究运用SSR分子标记技术对来源于内蒙古、宁夏、甘肃16个不同居群的299份红砂材料进行遗传多样性分析。结果表明11对引物共扩增出67个等位基因,扩增等位... 详细信息

为了探究不同居群红砂(Reaumuria soogorica)的遗传多样性水平及居群遗传结构。本研究运用SSR分子标记技术对来源于内蒙古、宁夏、甘肃16个不同居群的299份红砂材料进行遗传多样性分析。结果表明11对引物共扩增出67个等位基因,扩增等位基因多态率为83.58%,多态信息含量(Polymorphism information content,PIC)为0.396;居群的等位基因数(Allele number,Na)和有效等位基因数(Effective number of alleles,Ne)为3.735,2.221;香农信息指数(Shannon information index,I)为0.763;居群间遗传分化系数(Fixation index,Fst)为0.041~0.210,平均值为0.088。AMOVA结果表明,居群间的遗传差异仅占变异总来源的5.8%。本研究得出结论红砂的基因多态性为中度,等位基因不均匀的分布在染色体上。观测杂合度和固定指数说明居群内杂合度缺失,纯合体过量。Fst指数表明居群间分化程度较低,且红砂的遗传变异主要来自源于个体内DNA序列的不同。Mantel检测得出遗传距离和地理距离显著相关。聚类分析表明居群间的基因交流是影响居群聚类的重要因素。STRUCTURE结构分析将材料分为5个亚群,第Ⅴ亚群内红砂个体血统较为纯正,第Ⅱ亚群内个体血统混杂。

关键词：红砂 SSR 遗传多样性遗传结构聚类分析

The emotional structuring of the Andean territory: Mapping embodied narratives in Coporaque, Peru

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Frontiers of Architectural Research 2023年第5期12卷 985-998页

作者： Gonzalo Ríos-Vizcarra Luis enrique Calatayud-Rosado Aleixandre Brian Duche-Perez Víctor Cano-Ciborro Faculty of Architecture and Civil and Environmental Engineering Universidad Católica de Santa MaríaArequipa 04001Peru Faculty of Social Sciences and Technologies and Humanities Universidad Católica de Santa MaríaArequipa 04001Peru The Higher Technical School of Architecture of Madrid Polytechnic University of MadridMadrid 28040Spain

This research explores the subject of territory,understood based on the life world of Andean inhabitants of the Colca Valley(Arequipa,Peru),who are descendants of ancient local Indigenous groups that,since prehistoric times,have known how to adapt to the rugged geographical reality of the *** a phenomenological approach,which assesses the subjective experience,it was possible to corroborate the existence of routine patterns of spatiality that preserve the emotional essence of past territorial conceptions,which have prevailed despite the hegemonic impositions systematically forced upon the land ever since the Spanish conquest in the 16th *** carrying out coexistence fieldwork in situ,five layers of territorial sense have been registered,which,besides being very useful in order to optimize and give coherence to their agricultural and animal husbandry tasks,are periodically represented through verbal and corporal narratives,which have been mapped in this work in order to make their dynamics of symbolization visible and to conclude in the existence of an emotional Andean territory.

关键词： Life world Territory Affection Andean Colca valley Phenomenology Narratives

Solid Particle Erosion of AISI 304 SS Caused by Alumina Particles

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journal of Surface Engineered Materials and Advanced Technology 2024年第1期14卷 1-14页

作者： juan Rodrigo Laguna-Camacho Celia María Calderón-Ramón Víctor Velázquez-Martínez javier Calderón-Sánchez Gabriel juárez-Morales Cristóbal Cortez-domínguez jorge Alberto Chagoya-Ramírez jesús enrique López-Calderón Paul Ramírez-Sánchez Silvia Marina Sánchez-Yáñez Héctor Daniel López-Calderón Faculty of Electrical and Mechanical Engineering Universidad Veracruzana Poza Rica Veracruz Mexico Facultad de Ciencias Biolgicas y Agropecuarias Universidad Veracruzana Tuxpan Veracruz Mexico Facultad de Biologa Universidad Veracruzana Xalapa Veracruz Mexico

This research work was carried out with the aim of continuing to expand knowledge on the behaviour of AISI 304 stainless steel against solid particle erosion. In this particular case, the steel was subjected to the impact of alumina particles, which are hard abrasives with irregular and angular shapes. Different characterization techniques were applied to gain a better understanding of alumina. For instance, particle size distribution was obtained using the Analysette 28 Image Sizer and the particle size was between 300 - 400 µm. SEM and EDS analysis were used to know the morphology and chemical composition of both the abrasive particles and AISI 304 stainless steel. Additionally, mechanical properties values such as the hardness and Young’s modulus of AISI 304 steel were attained using a Berkovich indenter (model TTX-NHT, CSM Instruments). On the other hand, two tests were carried out for each impact angle used, 30˚, 45˚, 60˚ and 90˚, with a particle velocity of 24 ± 2 m/s and an abrasive flow rate of 63 ± 0.5 g/min, employing a test rig based on ASTM G76-95 standard. SEM images using two detectors, Backscattered Electron Detector (BED) and Low Electron Detector (LED), were employed to identify the wear mechanisms on the AISI 304 eroded surfaces at 30˚ and 90˚. Finally, the erosion rates of AISI 304 compared to those results reached by AISI 1018 steel and AISI 420 stainless steel tested under identical conditions in previous works.

关键词： Solid Particle Erosion AISI 304 Stainless Steel Alumina Particles Wear Mechanisms Erosion Rates

Fully integrated and broadband Si-rich silicon nitride wavelength converter based on Bragg scattering intermodal four-wave mixing

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Photonics Research 2024年第3期12卷 I0001-I0010页

作者： VALERIO VITALI THALÍA domÍnguez BUCIO HAO LIU jOSÉMANUEL LUQUE GONZÁLEZ FRANCISCO jURADO-ROMERO ALEjANDRO ORTEGA-MOÑUX GLENN CHURCHILL jAMES C.GATES jAMES HILLIER NIKOLAOS KALFAGIANNIS DANIELE MELATI jENS H.SCHMID ILARIA CRISTIANI PAVEL CHEBEN j.GONZALO WANGÜEMERT-PÉREZ ÑIGO MOLINA-FERNÁNDEZ FREDERIC GARDES COSIMO LACAVA PERIKLIS PETROPOULOS Optoelectronics Research Centre University of SouthamptonSouthampton SO171BJUK Electrical Computer and Biomedical Engineering DepartmentUniversity of PaviaPavia 27100Italy Telecommunication Research Institute(TELMA) Universidad de MálagaCEI Andalucı´a TECHE.T.S.I.Telecomunicación29010 MálagaSpain School of Science and Technology Nottingham Trent UniversityNottingham NG118NSUK Department of Electrical Engineering Eindhoven University of TechnologyEindhoven 5600 MBThe Netherlands Department of Materials Science and Engineering University of IoanninaIoannina 45110Greece Centre de Nanosciences et de Nanotechnologies UniversitéParis-SaclayCNRS91120 PalaiseauFrance Advanced Electronics and Photonics Research Center National Research Council CanadaOttawaOntario K1A 0R6Canada

Intermodal four-wave mixing(FWM)processes have recently attracted significant interest for all-optical signal processing applications thanks to the possibility to control the propagation properties of waves exciting distinct spatial modes of the same *** allows,in principle,to place signals in different spectral regions and satisfy the phase matching condition over considerably larger bandwidths compared to intramodal ***,the demonstrations reported so far have shown a limited bandwidth and suffered from the lack of on-chip components designed for broadband manipulation of different *** demonstrate here a silicon-rich silicon nitride wavelength converter based on Bragg scattering intermodal FWM,which integrates mode conversion,multiplexing and de-multiplexing functionalities *** system enables wavelength conversion between pump waves and a signal located in different telecommunication bands(separated by 60 nm)with a 3 dB bandwidth exceeding 70 nm,which represents,to our knowledge,the widest bandwidth ever achieved in an intermodal FWM-based system.

关键词： scattering pump modal

Clinical-pathological and molecular characterization of long-term survivors with advanced non-small cell lung cancer

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Cancer Biology & Medicine 2020年第2期17卷 444-457页

作者： juan Moreno-Rubio Santiago Ponce Rosa Alvarez Maria Eugenia Olmedo Sandra Falagan Xabier Mielgo Fatima Navarro Patricia Cruz Luis Cabezon-Gutierrez Carlos Aguado Gonzalo Colmenarejo Marta munoz-Fernandez de Leglaria Ana Belen Enguita Maria Cebollero Amparo Benito Isabel Alemany Carolina del Castillo Ricardo Ramos Ana Ramirez de Molina enrique Casado Maria Sereno Ana Ramirez de Molina1 Enrique Casado5Maria Sereno5 XIMDEA Food InstituteCEI UAM+CSICMadrid 28702Spain 12 de Octubre University Hospital Madrid 28041Spain Gregorio Maranon University Hospital Madrid 28009Spain Ramon y Cajal University Hospital Madrid 28034Spain Infanta Sofia University Hospital San Sebastian De Los ReyesMadrid 28702Spain Fundacion Alcorcon University Hospital AlcorconMadrid 28922Spain Prlncipe de Asturias University Hospital Alcala De HenaresMadrid 28805Spain La Paz University Hospital Madrid 28046Spain University Hospital of Torrejon Torrejon De ArdozMadrid 28850Spain Clinico San Carlos University Hospital Madrid 28040Spain Parque Cientifico de Madrid Foundation Madrid 28049Spain

Objective:Long-term survivors(LS)of non-small cell lung cancer(NSCLC)without driver alterations,displaying an overall survival(OS)of more than 3 years,comprise around 10%of cases in several series treated with *** are classical prognosis factors for these cases[stage,Eastern Cooperative Oncology Group(ECOG),etc.],but more data are required in the *** this multi-center study,we focused on LS of advanced NSCLC with OS above 36 months to perform a clinical-pathological and molecular ***:In the first step,we conducted a clinical-pathological characterization of the ***,we carried out a genetic analysis by comparing LS to a sample of short-term survivors(SS)(with an OS less than 9 months).We initially used whole-genome RNA-seq to identify differentiating profiles of LS and SS,and later confirmed these with reverse transcription-polymerase chain reaction(RT-PCR)for the rest of the ***:A total of 94 patients were included,who were mainly men,former smokers,having adenocarcinoma(AC)-type NSCLC with an ECOG of *** obtained an initial differential transcriptome expression,displaying 5 over-and 33 under-expressed genes involved in different pathways:namely,the secretin receptor,surfactant protein,trefoil factor 1(T FF1),serpin,Ca-channels,and Tolllike receptor(TLRs)***,RT-PCR analysis of 40(20 LS/20 SS)samples confirmed that four genes(surfactant proteins and SFTP)were significantly down-regulated in SS compared to LS by using an analysis of covariance(ANCOVA)model:SFTPA1(P=0.023),SFTPA2(P=0.027),SFTPB{P=0.02),and SFT PC(P=0.047).Conclusions:We present a sequential genetic analysis of a sample of NSCLCLS with no driver alterations,obtaining a differential RNA-seq/RT-PCR profile showing an abnormal expression of SF genes.

关键词： Long-term survivors non-small cell lung cancer surfactant proteins

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商用鸡免疫系统的评估

中国家禽 2002年第2期24卷 10-13页

作者： enrique Montiel 梅里亚家禽事业部

健康的鸡只在正常情况下会有良好的生产性能表现.但是,要养好健康的鸡群,则有赖于许多因素.这些因素包括管理、营养、免疫计划,而最重要的是有赖于免疫系统的健全发育.免疫系统的发育会受到数种病毒及非病毒因素的影响.在病毒方面,传染... 详细信息

健康的鸡只在正常情况下会有良好的生产性能表现.但是,要养好健康的鸡群,则有赖于许多因素.这些因素包括管理、营养、免疫计划,而最重要的是有赖于免疫系统的健全发育.免疫系统的发育会受到数种病毒及非病毒因素的影响.在病毒方面,传染性法氏囊病病毒(IBDV)、马立克氏病病毒(MDV)、里奥病毒(REO)、鸡传染性贫血病病毒(CAV)、禽白血病病毒(ALV)等数种为引起免疫抑制的主要病毒.

关键词：商用鸡免疫系统法氏囊胸腺脾脏免疫抑制

Inventory of primary emissions of selected persistent organic pollutants to the atmosphere in the area of Great Mendoza

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Emerging Contaminants 2016年第1期2卷 14-25页

作者： David Allende María Florencia Ruggeri Beléen Lana Karina Garro jorgelina Altamirano enrique Puliafito Universidad Tecnològica Nacional Facultad Regional MendozaAtmospheric and Environmental Studies GroupRodriguez 273Argentina

The setting up of a country or region-based inventory is considered a crucial step toward the elimination of worldwide persistent organic pollutants(POPs)***,the need of comparable emission inventories at city or region level is widely recognized to develop evidence-based policies accounting for the relation between emissions and institutional,socio-economic and demographic characteristics at small scale *** to the low spatial and temporal resolution of the available measurements,highly variable air concentrations of several POPs have been observed in Latin American and Caribbean *** paper presents a high resolution spatially disaggregated atmospheric emission inventory for selected POPs in order to assess the environmental fate of some of these compounds in a finer *** study case we estimated releases to air of POPs in a typical mid-size urban conglomeration in *** compounds were total polychlorinated biphenyls(PCBs),total polybrominated diphenyl ethers(PBDEs),total dichlorodiphenyltrichloroethane(DDT)on a sum basis,hexachlorobenzene(HCB)and dioxins and furans(PCDD/Fs),for which emissions were estimated in 0.92 kg/year,1.65 kg/year,4.2E-02 kg/year(total sum of congeners),0.86 kg/year and 4.4E-02 kg/year respectively,values that are in accordance with the geographic and economic *** emitting sources are quite varied,there are very clear trends,particularly in relation to open burning of municipal solid waste and agrochemical use as major ***,the inventory provides valuable data for the analysis of the heterogeneity of POP emissions and the necessary inputs for air quality modeling.

关键词： Atmospheric emission inventory POPs Emission factor Great Mendoza Open burning of municipal solid waste

Characterization of Nanometer-Spaced Few-Layer Graphene Electrodes

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Graphene 2012年第2期1卷 26-29页

作者： enrique Burzurí Ferry Prins Herre S. j. van der Zant Kavli Institute of Nanoscience Delft University of Technology Delft The Netherlands

We study graphene electrodes that can be used for contacting single molecules. The nanometer-scale gap is made by feedback controlled electroburning in few-layer graphene sheets. We analyze the time stability, and the influence of the temperature and gate voltage on the current flowing through the empty gaps. The electrodes are stable at room temper- ature for long periods of time. We show statistics of the relation between the initial resistance of the few-layer graphe- ne flakes and the final size of the gaps. We find that thicker flakes are more suitable for the fabrication of the elec-trodes.

关键词： Graphene Spintronics Three-Terminal Transistors