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Abscisic Acid, High-Light, and Oxidative Stress Down-Regulate a Photosynthetic Gene via a Promoter Motif Not Involved in Phytochrome- Mediated Transcriptional Regulation

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Molecular Plant 2008年第1期1卷 75-83页

作者： Roberto j. Staneloni Maria j.se rodriguez-Batiller j.rge j. Casal Fundacion Instituto Leloir and IIBBA-CONICET C1405BWE-Buenos Aires Argentina IFEVA Facultad de Agronomia Universidad de Buenos Aires and CONICET 1417 Buenos Aires Argentina

In etiolated seedlings, light perceived by phytochrome promotes the expression of light-harvesting chlorophyll a/b protein of photosystem Ⅱ （Lhcb） genes. However, excess of photosynthetically active radiation can reduce Lhcb expression. Here, we investigate the convergence and divergence of phytochrome, high-light stress and abscisic acid （ABA） signaling, which could connect these processes. Etiolated Arabidopsis thaliana seedlings bearing an Lhcb promoter fused to a reporter were exposed to continuous far-red light to activate phytochrome and not photosynthesis, and treated with ABA. We identified a cis-acting region of the promoter required for down-regulation by ABA. This region contains a CCAC sequence recently found to be necessary for ABI4-binding to an Lhcb promoter. However, we did not find a G-box-binding core motif often associated with the ABI4-binding site in genes promoted by light and repressed by ABI4. Mutations involving this motif also impaired the responses to reduced water potential, the response to high photosynthetic light and the response to methyl viologen but not the response to low temperature or to Norflurazon. We propose a model based on current and previous findings, in which hydrogen peroxide produced in the chloroplasts under high light conditions inter- acts with the ABA signaling network to regulate Lhcb expression. Since the mutation that affects high-light and methyl viologen responses does not affect phytochrome-mediated responses, the regulation by retrograde and phytochrome signaling can finally be separated at the target promoter level.

关键词： .cis-Acting Abscisic ABA signaling High-Light and Oxidative Lhcb expression high-light stress Lhcb promoter

Photovoltaic-based DC microgrid with partial shading and fault tolerance

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j.urnal of Modern Power Systems and Clean Energy 2019年第2期7卷 340-349页

作者： Carlos CORREA-BETANZO Hugo CALLEj. Carlos AGUILAR adolfo R.LOPEZ-NUNEZ Elías rodriguez Electronics Department National Center for Research and Development of Technology62490 CuernavacaMorelosMexico Electronics Department Technological Institute of Celaya38010 CelayaGuanajuatoMexico

Partial shading is a common problem that affects bus regulation in DC microgrids with several photovoltaic(PV) modules as energy sources, as a result of reduced solar irradiance reaching the *** problem can be mitigated by incorporating batteries, but if they are not included, appropriate control strategies must be used. This paper presents a new approach in a PV-based DC microgrid, which provides a high-quality bus voltage regulation in islanding mode, without being affected by partial shading or problems associated with PV module connection and disconnection. The solution proposed herein ensures a proper voltage regulation without being affected by problems such as failures in PV modules or mismatch between them. Besides, it can help to prevent PV partial shade stress by disconnecting the affected modules. A further advantage of the approach is the flexibility to connect more PV modules. The advantages of this approach were verified in a 200 W prototype.

关键词： Photovoltaic Microgrid Partial shading Fault Control strategy

Erratum to:Influence of metal support in-plane symmetry on the corrugation of hexagonal boron nitride and graphene monolayers

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Nano Research 2019年第5期12卷 1217-1218页

作者： Antonio j.martinez-Galera j.se M.Gomez-rodriguez Departamento de Fisica de la Materia Condensada Universidad Autonoma de MadridMadrid E-28049Spain Condensed Matter Physics Center(IFIMAC) Universidad Autonoma de MadridMadrid E-28049Spain Instituto Nicolas Cabrera Universidad Autonoma de MadridMadrid E-28049Spain

The writings of the text on the last line,left column on the 4^th page and the text on lines 8^th,10^th,11^th and 16^th in the 4^th paragraph,left column and on lines from 1st to 8^th in the 1st paragraph,right column on the 5^th page,and the text on line 4^th in the 1^st paragraph,left column on the 9^th page,and Fig.3 and its caption on the 5^th page in the original version of this article were unfortunately incorrect.

关键词： corrugation hexagonal boron nitride graphene monolayers

Strategies for MSME’s When Facing Pandemic Event: A Research of Restaurants in Tlaxcala during the COVID-19 Outbreak

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Strategies for MSME’s When Facing Pandemic Event: A Researc...

作者： j.sus adolfo rodriguez Lozano 北京第二外国语学院

学位级别：硕士

Near to 95% of Mexican restaurants had to close during the quarantine(（Mendoza,2020）meanwhile65% of restaurants in Mexico will ‘die’ or have ‘high risk of bankruptcy’ due to,directly affecting two million 187 thousand j.bs coronavirus（Forbes,2020）and,with an accelerated spreading of coronavirus,the sector has seen an unprecedented drop in demand because of the progressively loss of confidence in the *** Tlaxcala the industry was also severely affected,and it has been difficult for restaurants in this region to face the crisis without a certain way to face it,strategically *** paper argues that micro,small and medium enterprise（MSME’s）owners and managers could aim for a more proactive approach to incorporate strategies that be helpful to counter the negative effects caused by the crisis caused by the Covid-19 pandemic in the restaurant *** carry out the study,statistical data on Tlaxcala’s city restaurants was retrieved and analyzed in order to verify if the business owners and managers of these eateries were aware of strategies recommended for crisis,especially crisis management,business continuity plan and business process ***,semi-structured interviews were applied with these subj.cts to identify similarities between the theory of these strategic management concepts and the strategies taken during the crisis in order to visualize the potential opportunities of incorporating these concepts to their operativity,while also incorporating to these study successful procedures used by these businesses that could help other restaurants during these critical *** findings of these research show that there is room for improvement in the restaurant of Tlaxcala when it comes to strategies related to endure the crisis and,while chain restaurants possess a more structured plan to cope against the negative effects of the pandemic due to the assistance of their respective corporates,a small part of independent restaurants shown th

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Asphaltene Surface Erosion in Air Plasma

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Plasma Science and Technology 2010年第1期12卷 81-86页

作者： M. VILLA M. CALIXTO-rodriguez H. martinez j. C. POVEDA P. G. REYES P. ALTUZAR Faculty of Sciences Autonomous University of the State of Mexico State of Mexico Mexico Institute of Physical Sciences Autonomous National University of Mexico 62210 Cuernavaca Morelos Mexico Energy Research Center Autonomous National University of Mexico 62580 Temixco Morelos Mexico

Optical emission spectroscopy was applied for plasma characterization during erosion of substrates of asphaltene. The amount of 100 mg of asphaltene was carefully applied to an electrode and exposed to air plasma glow discharge at a pressure of 1.0 Tort. The plasma was generated in a stainless steel discharge chamber by an AC generator with a frequency of 60 Hz and an output power of about 60 W. The electron temperature was found to be 6.88 eV, and the ion density is about 3.5×10^16 cm^-3. As the asphaltene was exposed to the air plasma, the surface was etched. The emission from molecular bands CS2,O3, N2^＋, NO, O2, CS, S2, CN, C7H7, C2, H2, C2^-, NiO, N2 and SO, and atomic line O, were observed and some of them were used to monitor the evolution of asphaltene erosion. The asphaltene weight was reduced gradually with an etching rate of about 0.844 mg/min, during the first 20 min.

关键词： optical emission spectroscopy asphaltene erosion

The unusual life history of a southern Iberian Peninsula population of Torleya maj.r （Ephemeroptera： Ephemerellidae）

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Insect Science 2011年第5期18卷 583-589页

作者： M. j. Lopez-rodriguez j. M. Tierno de Figueroa j. Alba-Tercedor Departamento de Biologia Animal Facultad de Ciencias Universidad de Granada Granada Spain

The nymphal biology of a population of Torleya maj.r （Klapalek） in southem Iberian Peninsula was studied. An atypical life cycle pattern is described, with eggs hatching in August producing a fast-developing cohort with adults emerging in autumn and a second slow-developing cohort with adults emerging in spring of the following year. Nymphal growth occurred primarily in summer-autumn （in the first cohort） and in spring （in the second）. The origin of such a life history is discussed. Nymphs were collector-gatherers, consuming mainly detritus. Although ontogenetic shifts on the use of trophic resources were detected, similar food was utilized during the months when both cohorts cohabited, eliminating the possibility that the rapid growth of the first cohort could be related to the utilization of different food resources.

关键词： collector-gatherer life cycle mayfly nymphal feeding southern Iberian Peninsula

Temperature and Concentration Fields in a Generator Integrated to Single Stage Heat Transformer Using Water/Carrol Mixture

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j.urnal of Thermal Science 2014年第6期23卷 564-571页

作者： E.Gómez-Arias j.Ibarra-Bahena L.Velazquez-Avelar R.j.Romero A.rodriguez-martinez M.Montiel-González Centro de Investigación en Ingeniería y Ciencias Aplicadas Universidad Autónoma del Estado de MorelosAv.Universidad 1001Col.ChamilpaCuernavacaMorelosCP 62209MéXICO Facultad de Ciencias Químicas e Ingeniería Universidad Autónoma del Estado de MorelosAv.Universidad 1001Col.ChamilpaCuernavacaMorelosCP 62209MéXICO Posgrado en Ingeniería y Ciencias Aplicadas Universidad Autónoma del Estado de MorelosAv.Universidad 1001Col.ChamilpaCuernavacaMorelosCP 62209MéXICO

The generator is the starter device of single stage heat transformer(SSHT) and its characteristics have main effects on the overall efficiency of this kind of absorption *** article reports a study of the generation of steam and changes in the concentration of the working solution(Water/Carrol mixture) into a plate heat exchanger as a function of its horizontal and vertical position by gravity *** is considered the analysis of six experimental tests;two were evaluated in a plate heat exchanger in a horizontal position and four in a vertical position(90 degree inclination).The generation of steam and increased concentration of the working solution are more sensitive to the vertical position of exchanger than in horizontal *** results of numerical-experimental analysis indicates that a heat exchanger in horizontal position,the steam generation and the change in the concentration of the working solution occurring in the middle of the plate(or at greater distance depending to the thermodynamic conditions) and instantly in vertical position(at the input of the plate).

关键词： Single stage heat transformer Plate heat exchanger Numerical modeling Temperature and concentration field Water/Carrol mixture

Multi-Sectoral Reflections and Efforts in Strengthening Partnerships to Reduce Disaster Risk in Mexico:The First MuSe-IDRiM Conference

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International j.urnal of Disaster Risk Science 2020年第5期11卷 686-691页

作者： Irasema Alcantara-Ayala Daniel rodriguez-Velazquez Ricardo j.Garnica-Pena Alej.ndra Maldonado-martinez Institute of Geography National Autonomous University of Mexico(UNAM)04510 Mexico CityMexico National School of Social Work.National Autonomous University of Mexico(UNAM) 04510 Mexico CityMexico Disaster Risk Reduction Consultant 04700 Mexico CityMexico

Notwithstanding the high societal impact of disasters in Mexico,there is a lack of integrated efforts to establish a sound policy for reducing disaster risk to counterbalance the existing concentrated endeavors in disaster *** the face of such segmentation,the science and technology community has advocated for a change of perspective,from civil protection to integrated disaster risk *** first Multi-Sectoral Conference towards Integrated Disaster Risk Management in Mexico:Building a National Public Policy(MuSe-IDRiM Conference)was held in Mexico City at National Autonomous University of Mexico,21-24 October *** support of the implementation of the Sendai Framework for Disaster Risk Reduction 2015-2030,the conference aimed at enhancing the dialogue between the scienee and technology community,citizens,civil society organizations,private and public sectors,and the federtil,state,and municipal governments to foster the process of transforming the current National Civil Protection System into a national public policy oriented towards integrated disaster risk management(DRM).Barriers and challenges to the implementation of integrated DRM were *** of integrated DRM challenges current socioeconomic structures and encourages all releva nt stakeholders to think,decide,and act from a different perspective and within and across spatial,temporal,j.risdictional,and institutional *** disaster risk from an integrated approach,learning skills that authorities have not learned or used,and hence,strengthening disaster risk governance are prerequisites to effectively manage disaster risk.

关键词： Disaster risk reduction Integrated disaster risk management Mexico Science-based policy making SINAPROC

Effects of medium-and long-distance running on cardiac damage markers in amateur runners:a systematic review,meta-analysis,and metaregression

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j.urnal of Sport and Health Science 2021年第2期10卷 192-200页

作者： j.cobo A.Rubio-Arias Luis Andreu Luis Manuel martinez-Aranda Alej.ndro martinez-rodriguez Pedro Manonelles Domingo j.Ramos-Campo Faculty of Sport Catholic University of San Antonio(UCAM)Murcia 30107Spain LFE Research Group Department of Health and Human PerformanceFaculty of Physical Activity and Sport Science-INEFUniversidad Politecnica de MadridMadrid 28040Spain International Chair of Sports Medicine Catholic University of San Antonio(UCAM)Murcia 30107Spain Neuroscience of Human Movement Research Group(Neuromove) Catholic University of San Antonio(UCAM)Murcia 30107Spain Faculty of Sciences University of AlicanteAlicante 03690Spain

Background:To finish an endurance race,athletes perform a vigorous effort that induces the release of cardiac damage *** are several factors that can affect the total number of these markers,so the aim of this review was to analyze the effect of endurance running races on cardiac damage markers and to identify the factors that modify the levels of segregation of these cardiac damage ***:A systematic search of PubMed,Web of Science,and the Cochrane Library databases was *** analysis included studies where the acute effects of running races on cardiac damage markers(troponin I and troponin T)were analyzed,assessing the levels of these markers before and after the ***:The effects of running races on troponin I(mean difference=0.0381 ng/mL)and troponin T(mean difference=0.0256 ng/mL)levels were *** ages(R^(2)=14.4%,p=0.033)and body mass indexes(R^(2)=14.5%,p=0.045)of the athletes had a significant interaction with troponin *** addition,gender,mean speed,time to finish the race,and type of race can affect the level of cardiac damage ***:Endurance running races induce the release of cardiac-damage markers that remain elevated for at least 24 h after the *** addition,young male athletes with high body mass indexes who perform races combining long duration and moderate intensity(i.e.,marathons)release the highest levels of cardiac damage *** should take into consideration these results in the diagnosis and treatment of patients admitted to the hospital days after finishing endurance running races.

关键词： Endurance races Troponin I Troponin T Ultra-endurance