检索结果-南通市图书馆

Species and Plant Community Reorganization in the Trans-Mexican Volcanic Belt under Climate Change Conditions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Mountain Science 2013年第6期10卷 923-931页

作者： VILLERS-ruiz lourdes CASTAEDA-AGUADO Diana Center of Atmospheric Sciences National Autonomous University of Mexico (UNAM) School of Science Biology Department National Autonomous University of Mexico (UNAM)

This study analyzes six vegetation communities in relation to current climatic parameters and eight climate change scenarios along an elevation gradient extending from 2,710 m to 4,210 m in the Trans-Mexican Volcanic Belt. The projected movements of 25 plant species with the current restricted or wide altitudinal distributions were also modeled. To relate climatic parameters to the species and communities, a Precipitation/Temperature （P/T） index was used both for the current and the different climate-change scenarios. The temperatures are expected to increase by 1.1℃ to 1.7℃ by 2020 and by 2℃ to 3℃ by 2o5o. A decrease of 4% to 13% in the annual precipitation is expected for the 2020 horizon, and a reduction between 3% and 20% is expected for 2050. The reductions in water availability were projected for all altitude levels and plant communities. The most marked reduction was under the HADLEY- A2 scenario, in which the lower limit of the altitudinal range increased from 2,71o to 3,31o m （2050 horizon） with reductions in the P/T index between 36% and 39% compared to the current climate. Most plant species tended to shift their distribution from 20o to 300 m upward in the 2020 temporal horizon scenarios. The Pinus hartwegii, Alnus jorullensis and Pinus montezumae communities would have a shorter altitudinal range as they move upward and merge with the remaining species at the higher altitudinal range. For the 2o5o temporal horizon, 3o% of the species, primarily those from the higher altitudinal range, would disappear because their P/Tindex values would be above the limit of plant survival （〉4,210 m）.

关键词： Forest communities Climate change Upward movement Natural protected areas

Muscle strength deficits are associated with low bone mineral density in young pediatric cancer survivors:The iBoneFIT project

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2024年第3期13卷 419-427页

作者： Andres Marmol-Perez Jose J.Gil-Cosano Esther Ubago-Guisado Francisco J.Llorente-Cantarero Juan Francisco Pascual-Gázquez Kirsten K.Ness Vicente Martinez-Vizcaino Jonatan R.ruiz Luis Gracia-Marco Department of Physical Education and Sports Faculty of Sport SciencesSport and Health University Research Institute(iMUDS)University of GranadaGranada 18011Spain Department of Epidemiology and Cancer Control St.Jude Children's Research HospitalMemphisTN 38105USA Department of Communication and Education Loyola University AndalusiaSeville 41704Spain Biosanitary Research Institute ibs.GranadaGranada 18012Spain Maimonides Biomedical Research Institute of Cordoba(IMIBIC) Cordoba 14004Spain CIBEROBN Biomedical Research Networking Center for Physiopathology of Obesity and NutritionCarlos III Health InstituteMadrid 28029Spain Department of Specific Didactics Faculty of EducationUniversity of CordobaCordoba 14071Spain Pediatric and adolescent hematology and oncology service Pediatrics and Pediatric Surgery Clinical Management UnitVirgen de las Nieves University HospitalGranada 18014Spain Health and Social Research Center Universidad de Castilla-La ManchaCuenca 13001Spain

Background Pediatric cancer survivors are at increased risk of muscle weakness and low areal bone mineral density(aBMD).However,the prevalence of muscle strength deficits is not well documented,and the associations of muscle strength with aBMD are unknown in this ***,this study aimed to investigate the prevalence of upper-and lower-body muscle strength deficits and to examine the associations of upper-and lower-body muscle strength with age-,sex,and race-specific aBMD Z-scores at the total body,total hip,femoral neck,and lumbar *** This cross-sectional study included 116 pediatric cancer survivors(12.1±3.3 years old,mean±SD;42.2%female).Upper-and lower-body muscle strength were assessed by handgrip and standing long jump test,***‑energy X‑ray absorptiometry was used to measure aBMD(g/cm2).Associations between muscle strength and aBMD were evaluated in multivariable linear regression *** regression was used to evaluate the contribution of muscle strength(1-decile lower)to the odds of having low aBMD(Z-score≤1.0).All analyses were adjusted for time from treatment completion,radiotherapy exposure,and body mass *** More than one-half of survivors were within the 2 lowest deciles for upper-(56.9%)and lower-body muscle strength(60.0%)in comparison to age-and sex-specific reference *** strength deficits were associated with lower aBMD Z-scores at all sites(B=0.133–0.258,p=0.001–0.032).Each 1-decile lower in upper-body muscle strength was associated with 30%–95%higher odds of having low aBMD Z-scores at all *** 1-decile lower in lower-body muscle strength was associated with 35%–70%higher odds of having low aBMD Z-scores at total body,total hip,and femoral *** Muscle strength deficits are prevalent in young pediatric cancer survivors,and such deficits are associated with lower aBMD Z-scores at all *** results suggest that interventions designed to improve muscle strength in t

关键词： Bone health Childhood cancer DXA Lean mass Resistance training

Analysis of the Cicatricial Acceleration Method (MAC®) in Skin Repair in Wistar Rattus norvegicus with Induced Chemical Burns

在线全文

学校读者我要写书评

暂无评论

Journal of Biosciences and Medicines 2024年第9期12卷 204-214页

作者： Marcus Vinicius de Mello Pinto Sandroval Francisco Torres Aline Ronis Sampaio Karin Yuri Fernandez Iturra Miriam Viviane Baron Patricia Froes Carlos ruiz da Silva Daiane Paza maria Elena Silva Alvarez Josefa Jeanette Ugalde Juliano Tibola Esteban Fortuny Celulare Institute Petrpolis Brazil State University of Santa Catarina (UDESC) Florianopolis Brazil Bienus Clinic Santiago Chile Pontifical Catholic University of Rio Grande do Sul (PUC/RS) Porto Alegre Brazil International Research Group (IRG) Natal Brazil Academic Training Center (CTA) College So Paulo Brazil Fibrafisio Clinic Brusque Brazil Fisiocare Clinic Curic Chile Lua Clinic Coyhaique Chile Finis Terrae University Santiago Chile

Introduction: The cicatricial acceleration method (MAC®) promotes photobiological effects of an anti-inflammatory and healing nature. Its therapeutic radiation is emitted, producing photobiostimulant effects that result in rapid tissue repair and better tissue quality. The treatment of burns has always been a challenge, which involves both performing surgery and controlling and guiding scar regeneration, avoiding possible morbidities. Objective: To evaluate the effects of applying the MAC methodology with an AlGa (aluminum, gallium arsenide) laser on the time and quality of tissue repair in the skin of rats after induced chemical burns. Method: 22 adult male rats were subjected to a second-degree chemical burn on the back using 50% trichloroacetic acid. After the burns, the animals were randomly separated into 2 groups: control and experimental. The control group (G1) received placebo laser therapy and the laser group (G2) underwent laser irradiation with an energy density of 100 J/cm2. Histological analysis and macroscopic evaluation were carried out by means of the paper template method. Results: Group G1 showed (53%) of the necrosis area and group G2 showed (11%) necrosis area. Conclusion: The cicatricial acceleration method (MAC®) favored the repair of wounds caused by a 2nd-degree chemical burn, optimizing time and improving quality.

关键词： Chemical Burn Healing Scarring Cicatricial Acceleration Method (MAC®) Tissue Repair

Photocatalytic degradation of paraquat using nano-sized Cu-TiO_2 /SBA-15 under UV and visible light

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2012年第6期24卷 1125-1132页

作者： Maurice G.Sorolla II maria lourdes Dalida Pongtanawat Khemthong Nurak Grisdanurak Department of Chemical Engineering College of EngineeringUniversity of the PhilippinesDiliman 1101Quezon CityPhilippines National Nanotechnology Center National Science and Technology Development AgencyKlong LuangPathumthani 12120Thailand Department of Chemical Engineering NCE for Environmental and Hazardous Waste ManagementFaculty of EngineeringThammasat UniversityPathumthani 12120Thailand

Photocatalytic degradation of paraquat using mesoporous-assembled Cu-TiO2 /SBA15 under UV and visible light was *** catalyst was synthesized by impregnation of Cu-TiO2 colloids onto *** colloids of Cu-TiO2 were prepared via solgel method while the mesoporous support was prepared using hydrothermal *** catalyst was characterized using X-ray diffraction,nitrogen adsorption-desorption,transmission electron microscopy,UV diffuse reflectance spectroscopy,Zeta potential and X-ray adsorption *** from characterizations showed that Cu doped TiO2 had a small crystalline size and was welldispersed on *** inclusion of SBA-15 significantly enhanced the photocatalytic activity of the *** the three types of undoped catalyst in this study （P25,TiO2,TiO_2 /SBA-15）,TiO2 /SBA-15 yielded the highest degradation of paraquat for all pH under UV *** 2 wt.% Cu-TiO2 /SBA-15 yielded the highest activity under visible light.

关键词： paraquat photocatalysis titania SBA-15 copper-doped

Adsorption of Mn^(2+) from aqueous solution using Fe and Mn oxide-coated sand

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2013年第7期25卷 1483-1491页

作者： Chi-Chuan Kan Mannie C Aganon Cybelle Morales Futalan maria lourdes P Dalida Institute of Hot Spring Industry Chia Nan University of Pharmacy and Science Environmental Engineering Unit University of Philippines Diliman Department of Chemical Engineering University of Philippines Diliman

The adsorption of Mn2＋ onto immobilized Mn-oxide and Fe-oxide adsorbent such as manganese oxide-coated sand 1 （MOCS1）, manganese oxide-coated sand2 （MOCS2）, iron oxide-coated sand2 （IOCS2）, and manganese and iron oxide-coated sand （MIOCS）was investigated. The effects of pH （5.5 to 8.0） and temperature （25 to45°C） on the equilibrium capacitywere examined. Equilibrium studies showed that there is a good fitwith both Freundlich and Langmuir isotherm,which indicates surface heterogeneity and monolayer adsorption of the adsorbents. Kineticdata showed high correlationwith the pseudo second-order model,which signifies a chemisorption-controlled mechanism. The activation energies, activation parameters （ΔG＊,ΔH＊,ΔS＊）, and thermodynamic parameters （ΔG0 , ΔH0 , ΔS0 ） confirmed that adsorptionwith MIOCSwas endothermic and more spontaneous at higher temperaturewhile an opposite trendwas observed for the other adsorbents. Thermodynamic studies showed that adsorption involved formation of activated complex,where MOCS1 and MIOCS follow a physical-chemical mechanism,while MOCS2 and IOCS2 follows purely chemical mechanism.

关键词： activation energy iron oxide kinetics manganese oxide thermodynamics

Classification of the firmness of peaches by sensor fusion

在线全文

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2015年第6期8卷 104-115,I0002页

作者： Kubilay Kazim Vursavus Yesim Benal Yurtlu Belen Diezma-Iglesias lourdes Lleo-Garcia Margarita ruiz-Altisent Department of Agricultural Machinery and Technologies Engineering Faculty of AgricultureÇukurova University01330 AdanaTurkey Department of Agricultural Machinery and Technologies Engineering Faculty of AgricultureOndokus Mayıs UniversitySamsunTurkey LPF-Tagralia Department of Agricultural EngineeringTechnical Polytechnic University of MadridAvda.Computense s/n28040 MadridSpain

The objectives of this research were to compare the performance of each individual nondestructive sensor with the destructive sensor,and to apply sensor fusion technique to explore whether a combination of sensors would give better results than a single sensor for classification of peach *** were carried out with four peach varieties namely Royal Glory,Caterina,Tirrenia and *** this research,the three nondestructive firmness sensors acoustic firmness,low-mass impact and micro-deformation impact were used to measure firmness.A Bayesian classifier was chosen to provide a classification into three categories,namely soft,intermediate and *** level fusion technique was performed by using identity declaration provided by each *** data fusion system processed the information of the sensors to output the fused *** result of the high level fusion was compared with the classification provided by an unsupervised algorithm based on destructive reference *** fusion process of the nondestructive sensors provided some improvements in the firmness classification;the error rate varied from 25%to 19%for individual ***,the results of fusion process by using three sensors decreased the error rate from 19%to 13%.This research demonstrated that the fused systems provided more complete and complementary information and,thus,were more effective than individual sensors in the firmness classification of peaches.

关键词： peach firmness classification nondestructive sensor high level fusion Bayesian classifier

Incorporation of Environmental and Sustainable Indicators in Universities

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Protection 2016年第6期7卷 825-830页

作者： lourdes ruiz International University of Ecuador Quito Ecuador

The use of environmental and sustainable indicators of global organizations has greater advantages than those of national initiatives or those developed by researchers in said subject, due to the fact that they have a much broader scope for sustainability, have been applied in a systematic manner and therefore have greater comparability and reliability. The environmental indicators are constructed from the approaches to sustainable development in universities with regards to the social, economic, institutional and environmental dimensions in the organizations. This work involves the application of environmental and sustainable indicators for internationally recognized efficiency in university activities, which contribute towards organizing, summarizing and developing the processes for development planning and environmental management.

关键词： Indicators Environment Sustainable Universities

Strategic Environmental Assessment of Towns in Ecuador with Tourism Potential

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Building Construction and Planning Research 2016年第1期4卷 83-88页

作者： lourdes ruiz International University of Ecuador Quito Ecuador

The aim of this study is to apply the methodology for assessment of environmental impact whether of a physicochemical nature and on the biodiversity and ecosystems, or whether sociocultural and economic aspects of the historic towns with tourism interest that are assessed. The automated method of the RIAM software is used which requires a baseline study of the environment of different towns to be prepared. In addition, the analysis of the social perception on tourism of the local people from the course work of students at the UIDE shall be applied. The conclusions of the case studies undertaken allow for strategic proposals and recommendations to be prepared so that they can be incorporated into the management plans for tourism in the historic towns with heritage value.

关键词： Environmental Impact Towns

A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High Power Laser Science and Engineering 2024年第2期12卷 87-94页

作者： J.Penas A.Bembibre D.Cortina-Gil L.Martin A.Reija C.ruiz M.Seimetz A.Alejo J.Benlliure Instituto Galego de Fisica de Altas Enerxias Universidade de Santiago de CompostelaSantiago de CompostelaSpain Laboratorio Laser de Aceleracion y Aplicaciones RIAIDTUniversidade de Santiago de CompostelaSantiago de CompostelaSpain Instituto Universitario de Física Fundamental y Matematicas y Dpto.de Didactica de la Matematica y de las Ciencias Experimentales Universidad de SalamancaSalamancaSpain Instituto de Instrumentación para Imagen Molecular(I3M) CSIC-Universitat Politecnica de ValenciaValenciaSpain

A multi-shot target assembly and automatic alignment procedure for laser–plasma proton acceleration at high repetition rate are *** assembly is based on a multi-target rotating wheel capable of hosting more than 5000 targets,mounted on a 3D motorized stage to allow rapid replenishment and alignment of the target material between laser *** automatic alignment procedure consists of a detailed mapping of the impact positions at the target surface prior to the irradiation that ensures stable operation of the target,which alongside the purpose-built design of the target wheel,enables operation at rates up to 10 *** and continuous laser-driven proton acceleration at 10 Hz is demonstrated,with observed cut-off energy stability about 15%.

关键词： high repetition rate laser-plasma acceleration multi-shot operation proton source target assembly