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Land cover change and carbon stores in a tropical montane cloud forest in the Sierra Madre Oriental,Mexico

Journal of Mountain Science 2018年第10期15卷 2136-2147页

作者： Edgar G.LEIJA-LOREDO Numa P.PAVóN arturo SáNCHEZ-GONZáLEZ Rodrigo RODRIGUEZ-LAGUNA GregorioáNGELES-PéREZ Center for Biological Research Autonomous University of Hidalgo.42184 HidalgoMexico Institute oJ:Ag ricultural Sciences Academic Area of Forestry EngineeringAutonomous University of Hidalgo.43600 HidalgoMexico Postgraduate School Campus MontecilloPostgraduate in Forest Sciences.56230 Estado de MexicoMexico

Tropical montane cloud forest is one of the ecosystems with the highest biomass worldwide, representing an important carbon store. Globally its deforestation index is –1.1%, but in Mexico it is higher than –3%. Carbon estimates are scarce globally, particularly in Mexico. The objective of this study was to simulate future land-cover scenarios for the Sierra Madre Oriental in Mexico, by analyzing past forest cover changes. Another objective was to estimate stored carbon in the two study areas. These objectives involve the generation of information that could be useful inputs to anti-deforestation public policy such as the REDD+ strategy. Remote sensing was used to measure land cover change and estimate carbon stocks. Satellite images from 2015, 2000 and 1986 were used, and Dinamica EGO freeware generatedmodels of future projections. Between 1986 and 2015, 5171 ha of forest were converted to pasture. The annual deforestation rates were –1.5% for Tlanchinol and –1.3% for the San Bartolo Tutotepec sites. Distance to roads and marginalization were highly correlated with deforestation. By 2030, an estimated 3608 ha of forest in these sites will have been converted to pasture. Stored carbon was estimated at 16.35 Mg C ha-1 for the Tlanchinol site and 12.7 Mg C ha-1 for the San Bartolo site. In the Sierra Madre Oriental deforestation due to land cover change(–1.4%) is higher than levels reported worldwide. Besides having high values of stored carbon(14.5 Mg C ha-1), these forests have high biodiversity. The models' outputs show that the deforestation process will continue if action is not taken to avoid the expansion of livestock pasturing. This can be done by paying incentives for forest conservation to the owners of the land. The results suggest that REDD+ is currently the most viable strategy for reducing deforestation rates in tropical montane cloud forests in Sierra Madre Oriental.

关键词： Cloud forest Carbon stores C mitigation Climate change Dinamica EGO Forest management Remote sensing.

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Genomic medicine in gastroenterology:A new approach or a new specialty?

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World Journal of Gastroenterology 2015年第27期21卷 8227-8237页

作者： Sonia Roman arturo Panduro Department of Molecular Biology in Medicine Civil Hospital of Guadalajara "Fray Antonio Alcalde" Mexico and Health Sciences Center University of Guadalajara

Throughout history, many medical milestones have been achieved to prevent and treat human ***'s early conception of illness was naturally holistic or integrative. However, scientific knowledge was atomized into quantitative and qualitative research. In the field of medicine, the main trade-off was the creation of many medical specialties that commonly treat patients in advanced stages of disease. However, now that we are immersed in the post-genomic era, how should we reevaluate medicine? Genomic medicine has evoked a medical paradigm shift based on the plausibility to predict the genetic susceptibility to disease. Additionally, the development of chronic diseases should be viewed as a continuum of interactions between the individual's genetic make-up and environmental factors such as diet, physical activity, and emotions. Thus, personalized medicine is aimed at preventing or reversing clinical symptoms, and providing a better quality of life by integrating the genetic, environmental and cultural factors of diseases. Whether using genomic medicine in the field of gastroenterology is a new approach or a new medical specialty remains an open question. To address this issue, it will require the mutual work of educational and governmental authorities with public health professionals, with the goal of translating genomic medicine into better health policies.

关键词： Chronic diseases Nutritional genomics Obesity Liver disease Gastrointestinal diseases

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EMERGING MELT QUALITY CONTROL SOLUTION TECHNOLOGIES FOR ALUMINIUM MELT

EMERGING MELT QUALITY CONTROL SOLUTION TECHNOLOGIES FOR ALUM...

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2008中国铸造活动周

作者： arturo PASCUAL

Aluminum and its alloys are used where structures and parts with good strength-to-weight ratio is *** demand for higher quality and tighter specification castings are becoming more critical and foundry men are looking...

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Role of Reactive Oxygen Species in the Initiation of Plant Retrograde Signaling

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Phyton-International Journal of Experimental Botany 2022年第5期91卷 905-913页

作者： Eduardo-Antonio Trillo-Hernández arturo Duarte Sierra Martín Ernesto Tiznado-Hernández Centro de Investigación en Alimentación y Desarrollo A.C.Tecnología de Alimentos de Origen VegetalLaboratorio de Fisiología y Biología Molecular de PlantasHermosillo83304México Department of Food Science and Plant Research and Innovation Center Laval UniversityQuebecQCG1V 0A6Canada

The interaction between the nucleus and the different organelles is important in the physiology of the ***-tive oxygen species(ROS)are a by-product of the oxidation of organic molecules to obtain energy by the need to carry out the electron transfer between the different enzymatic ***,they also have a role in the generation of what is known as retrograde *** signal comes from the different organelles in which the oxidation of molecules or the electron transference is taking place such as mitochondria and ***,ROS can also induce the release of signals from the *** seems that these signals plays a role communicating to the nucleus the current status of the different parts of the plant cell to induce a changes in gene *** this review,the molecular mechanism of ROS retrograde signaling is described.

关键词： Reactive oxygen species retrograde signaling mitochondria chloroplast

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GLI ENDEMISMI DELLA FLORA INSUBRICA La Daphne petraea Leybold Storia,areale,affinita e caratteri bio-ecologici

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Natural Disaster Reduction in China 1973年第1期 3-24页

作者： NINO ARIETTI e arturo CRESCINI

The authors intend to determine the geographical distribution of theDuphne petruea Leybold by means of the inventory,of the stations checked on theground of direct recognilions bye the aid of information drawn from specifie literatureon the subject and the reference of plenty of *** species is a palenendemie remnant of the Tertiary with an extremely specialhabital unable of further expansion even because of its prevailing agamie *** geographical distribution is limited to a reduced area of eastern Insubria andis comprized in the following geographical date:long.E *** 10°18′21″to 10°22′12″lat.N from 15°15′29″to 15°19′16″height from 530 m to 2006 mAffter slating the affnities,are examined the morphological characters of the speciesthat reveal its xerophitic mark and then the biological ones that limit its presence inlinle lypical ecological spots and prevent its expansion outside them.

关键词： 110 CII GLI ENDEMISMI DELLA FLORA INSUBRICA La Daphne petraea Leybold Storia,areale,affinita e caratteri bio-ecologici IBF VI 一已川川 FI der BAS AI La

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HBV endemicity in Mexico is associated with HBV genotypes H and G

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World Journal of Gastroenterology 2013年第33期19卷 5446-5453页

作者： Sonia Roman arturo Panduro Department of Molecular Biology in Medicine Civil Hospital of Guadalajara"Fray Antonio Alcalde"and Health Sciences CenterUniversity of Guadalajara

Hepatitis B virus(HBV)genotypes have distinct genetic and geographic diversity and may be associated with specific clinical characteristics,progression,severity of disease and antiviral ***,we provide an updated overview of the endemicity of HBV genotypes H and G in *** genotype H is predominant among the Mexican population,but not in Central *** geographic distribution is related to a typical endemicity among the Mexicans which is characterized by a low hepatitis B surface antigen seroprevalence,apparently due to a rapid resolution of the infection,low viral loads and a high prevalence of occult B *** chronic infections,genotype H is detected in mixtures with other HBV genotypes and associated with other co-morbidities,such as obesity,alcoholism and co-infection with hepatitis C virus or human immunodeficiency *** carcinoma prevalence is ***,antiviral therapy may differ significantly from the standard guidelines established *** high prevalence of HBV genotype G in the Americas,especially among the Mexican population,raises new questions regarding its geographic origin that will require further investigation.

关键词： Hepatitis B virus genotypes Hepatitis B virus genotype H Hepatitis B virus genotype G Molecular epidemiology Mexico Antiviral therapy Severity of liver disease Clinical outcome

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NiO-CaO materials as promising catalysts for hydrogen production through carbon dioxide capture and subsequent dry methane reforming

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Journal of Energy Chemistry 2017年第5期26卷 942-947页

作者： Alejandra Cruz-Hernández J.arturo Mendoza-Nieto Heriberto Pfeiffer Laboratorio de Fisicoquímica y Reactividad de Superficies(LaFReS) Instituto de Investigaciones en MaterialesUniversidad Nacional Autónoma de MéxicoCircuito exterior s/nCiudad UniversitariaDel.CoyoacánCP 04510Ciudad de MéxicoMexico

In this work, CaO-NiO mixed oxide powders were evaluated as consecutive CO;chemisorbents and catalytic materials for hydrogen production thought the CH;reforming process. Between the NiO impregnated CaO and CaO-NiO mechanical composite, the first one presented better chemical behaviors during the CO;capture and CH;reforming processes, obtaining syngas（H;+ CO） as final product. Results showed that syngas was produced at two different temperature ranges, between 400 and 600 °C and at T > 800 °C, where the first temperature range corresponds to the CH;reforming process but the second temperature range was attributed to a different catalytic reaction process: CH;partial oxidation. These results were confirmed through different isothermal and cyclic experiments as well as by XRD analysis of the final catalytic products, where the nickel reduction was evidenced. Moreover, when a CO-O;flow was used during the carbonation process a triple process was achieved:（i） CO oxidation,（ii） CO;chemisorption and（iii） CH;reforming. Using this gas flow the hydrogen production was always higher than that obtained with CO;.

关键词： Methane reforming CO2 capture Calcium oxide H2 production NiO supported

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Need of righteous attitudes towards eradication of hepatitis C virus infection in Latin America

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World Journal of Gastroenterology 2016年第22期22卷 5137-5142页

作者： arturo Panduro Sonia Roman Department of Molecular Biology in Medicine Civil Hospital of Guadalajara "Fray Antonio Alcalde" Health Sciences Center University of Guadalajara

Over the last few years, we have expanded our knowledge on numerous facets of the hepatitis C virus(HCV). Beginning with its discovery and viral life cycle, its impact on health, the development of liver disease and currently, effective antiviral treatments. The latter point has become of great interest throughout the developed world, where the possible eradication of HCV through specific strategies to reach all HCV-infected people has been announced. However, this scenario is very different in the countries of Latin America(LA), in which < 2% of infected patients requiring treatment have access to HCV medications. It has been estimated that at least ten million Latin Americans may be infected with HCV. Despite the numbers, viral hepatitis does not seem to be considered a health problem in this region of the world. This reality poses a challenge for politicians and governments of these countries, as well as to the pharmaceutical industry, the medical practitioners, and academics in LA. In this editorial, we state the need for alterations in the attitudes of the integral players involved in this situation. A recognition shift could help to create preventive strategies of viral hepatitis and to advocate for accessibility to new HCV treatments.

关键词： Low-income Antiviral agents Public health Medical societies Drug industry

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Head geometric morphometrics of two Chagas disease vectors from Venezuela

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Zoological Systematics 2017年第1期42卷 65-70页

作者： Ana Maria Oropeza Carlos arturo Perri Fernanndez Jonathan Liria Ana Soto-Vivas Escuela de Bioanalisis Facultad de Cieneias de la Salud Universidad de Carabobo Venezuela Universidad Regional Amazonica IKIAM km 7 via Muyuna Ecuador Centro de Esmdios en Zoologla Aplicada Facultad Experimental de Ciencias y Tecnologla Universidad de Carabobo Venezuela Centro de Estudios de Enfermedades Endkmicas y Salud Ambiental Institeto de Alto Estudios "Dr. Arnoldo Gabladon " Venezuela Carrera de Cs. Biologicas y Ambientales Facultad de Ciencias Biologicas Universidad Central del Ecuador Ecuador

Triatominae species are considered the main vectors of Chagas disease or American Trypanosomiasis. In Venezuela, the principal vectors are Rhodnius prolixus （Stal, 1959） and Triatoma maculata （Erichson, 1848）, which are belonged to the tribe Rhodniini and Triatomini, respectively. The head conformation and size development of these species can reflect ontogenetic changes which contribute with the vectors biology studies, as well to support of instars determination. The goal of the paper is to the application of geometric morphometric techniques for describing head conformation and size of instars of these species. We photographed 140 heads in R. prolixus： First instar （I： 16）, second instar （II： 17）, third instar （III： 18）, fourth instar （IV： 21）, fifth instar （V： 21）, adult female （F： 26） and adult males （M： 21）; in T. maculata heads of 136 specimens were photographed,I： 20, II： 17, III： 26, IV： 15, V： 19, F： 20 and M： 19. Landmark coordinate （x, y） configurations were registered and aligned by Generalized Procrustes Analysis. Covariance Analyses were implemented with proportions of re-classified groups and MANOVA. Statistical analyses of variance found not significant differences in head isometric size （Kruskal-Wallis） among IV and V instars in both species. The a posteriori re-classification was almost perfect in R. prolixus （82%） and T. maculata （86%）; the main head differences occurs in antenniferous tubercles, postocular and preocular. Our study using quantitative tools for describing the shape differences contributes to explain the morphology variability and development of Chagas disease vectors.

关键词： Instars Rhodniini Triatomini conformation centroid size.

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Distributed Monitoring of Power System Oscillations Using Multiblock Principal Component Analysis and Higher-order Singular Value Decomposition

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Journal of Modern Power Systems and Clean Energy 2022年第4期10卷 818-828页

作者： arturo Román-Messina Alejandro Castillo-Tapia David A.Román-García Marcos A.Hernández-Ortega Carlos A.Morales-Rergis Claudia M.Castro-Arvizu Center for Research and Advanced Studies(CINVESTAV)of the National Polytechnic Institute of Mexico GuadalajaraJal.45017Mexico Instituto Tecnológico y de Estudios Superiores de Monterrey GuadalajaraJal.45070Mexico Autonomous University of Guadalajara GuadalajaraJal.45129Mexico Centro de Enseñanza Técnica Industrial and he is also with UAGGuadalajaraJal.44638Mexico

The primary goal in the analysis of hierarchical distributed monitoring and control architectures is to study the spatiotemporal patterns of the interactions between areas or *** this paper,a novel conceptual framework for distributed monitoring of power system oscillations using multiblock principal component analysis(MB-PCA)and higher-order singular value decomposition(HOSVD)is proposed to understand,characterize,and visualize the global behavior of the power *** proposed framework can be used to evaluate the influence of a given area or utility on the oscillatory behavior,uncover low-dimensional structures from high-dimensional data,and analyze the effects of heterogeneous data on the modal characteristics and interpretation of power *** metrics are then investigated to examine the relationships between the dynamic patterns and participation of individual data blocks in the global behavior of the *** application of these techniques is demonstrated by case studies of two systems:a 14-machine test system and a 5449-bus 635-generator equivalent model of a large power system.

关键词： Distributed monitoring multiblock principal component analysis(MB-PCA) higher-order singular value decomposition(HOSVD) Tucker decomposition

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