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Journal of Electromagnetic Analysis and Applications 2012年第1期4卷 42-52页

作者： Francisco Bulnes Juan carlos Maya Isaías martínez 不详

Using certain models of twistor surfaces for fields of force and the mathematical relationships that lie among fields, lines, surfaces and flows of energy, it has been designed and developed a flight electromagnetic type system based on the synergic study of their electromagnetic field geodesics to generate vehicle levitation, suspension and movement without being in contact with the surface. The idea of such work is to obtain a new flight and impulse patent of an electromagnetic vehicle by principles of super-conduction and some laws of the current like Eddy currents and principles which are very similar to mechanics of sidereal objects like galaxies or stars under models of twistor surfaces. This vehicle will be controlled by one microchip that will be programmed by conscience operators algebra of electromagnetic type that leads to the flow of Eddy currents, the iso-rotations and suspension of the special geometrical characteristics vehicle, generating also on the vehicle structure certain “magnetic conscience” that provokes all movements like succeeding to the sidereal objects in the universe.

关键词： Electromagnetic Levitation Twistor Surfaces of Impulse Symmetrical Space of Iso-Rotations Superconductive Quantum Algebra Magnetic Conscience Operators

Renal function and choroidal thickness using swept-source optical coherence tomography in diabetic patients

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International Journal of Ophthalmology(English edition) 2019年第6期12卷 985-989页

作者： Antonio Manuel Garrido-Hermosilla Mariola Méndez-Muros Estanislao gutiérrez-Sánchez Cristóbal Morales-Portillo María Jesús Díaz-GrANDa Eduardo Esteban-González Isabel Relimpio-López María Asunción martínez-Brocca Enrique Rodríguez-de-la-Rúa-Franch Department of Ophthalmology Virgen Macarena University HospitalSeville 41009Spain OftaRed Institute of Health Carlos IIIMadridSpain Department of Endocrinology and Nutrition Virgen Macarena University HospitalSeville 41009Spain

AIM: To assess the relationship between choroidal thickness and renal function in diabetic patients. METHODS: Cross-sectional retrospective clinical study of 42 eyes of 21 ocular treatment-na?ve diabetic patients. Demographic data included: age, sex, type and course of diabetes. Ocular data included: severity of diabetic retinopathy;retinal thickness at the central macular region, as well as choroidal thickness at the central and paracentral quadrants, using automatically generated maps by swept-source optical coherence tomography;presence of cystic macular edema;and ocular axial length(AXL). Lab-test parameters included: glycated hemoglobin(HbA1c), albuminuria, albumin/creatinine ratio in urine, and glomerular filtration rate. RESULTS: A significant negative correlation was mainly observed between several choroidal thicknesses, age(P<0.020) and ocular AXL(P<0.030). On the contrary, a significant positive correlation was found between all choroidal thicknesses, HbA1 c(P<0.035) and albuminuria(P<0.040). CONCLUSION: Choroidal thickness can represent an additional tool to help clinicians predicting the renal status in ocular treatment-na?ve diabetic patients.

关键词： choroidal thickness renal function swept-source optical coherence tomography spectral-domain optical coherence tomography diabetes mellitus

Wood anatomical acclimation in the endemic genus Polylepis in Peruvian Andean forests

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Journal of Mountain Science 2024年第9期21卷 2986-3000页

作者： Anthony GUERRA Fressia N.AMES-martÍnez Ernesto C.RODRÍGUEZ-RAMÍREZ Postgraduate Programme in Agronomy/Plant Physiology Department of Biology-Institute of Natural Sciences Federal University of LavrasLavras 37203-202Minas Gerais 30000-31999Brazil Laboratory of Biotechnology and Molecular Biology Continental UniversitySan Antonio UrbanizationHuancayo 12000Peru Ecology and Biodiversity Research Programme ANDINUS AssociationMiguel Grau Street 370Huancayo 12000Peru Dendrochronology Laboratory Continental UniversitySan Carlos Avenue 1980Huancayo 12000Peru

Polylepis(Queñua)is a dominant woody plant genus in Andean Puna forests that occurs in a wide range of montane habitats and is ecologically diverse in endemism,which may be particularly threatened by climate *** anatomical traits are essential for understanding how plants adjust their ecophysiological requirements and maximize their resilience,resistance,and recovery to extreme *** the effects of extreme climatic conditions in high altitude ecosystems have been studied extensively,our knowledge is relatively limited to quantitative differences in the main xylem *** address this gap,we assessed the acclimation of wood anatomical traits in six Peruvian Andean Polylepis species with different water availability(semi-dry with high moisture and semiarid with dry winters).We selected hydraulic diameter,vessel density,vessel grouping index,solitary vessel index,vulnerability index,mesomorphy index,vessel element length,fiber length,fiber wall thickness,fiber lumen diameter,and total fiber diameter that can provide relevant eco-wood anatomical acclimation to hydric *** performed multivariate analysis to determine the leading dimensions of covariation among Polylepis species and climatic *** wood anatomical traits(vessel grouping index,vulnerability index,and fiber wall thickness)were dissimilar between xeric-and mesic-Polyelpis *** study demonstrates that wood anatomical traits in Peruvian Andean Polylepis species provides high-resolution and long-term eco-wood anatomical signals on how climate oscillations drive the acclimation processes of fiber and vessel *** findings underscore the significance of xylem hydraulic adjustment to various hydrological environments in Andean puna *** evaluating the effects of drought on wood anatomical characteristics and ecological function,we demonstrate the capacity of tree species to adapt and endure climate-related changes,thereby emphasizing their resilience and ada

关键词： Carlquist indices Climatic resilience Vessel traits Fiber Functional trait Hydric stress

Liver cirrhosis and sarcopenia:a dreadful combination

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Hepatobiliary Surgery and Nutrition 2022年第5期11卷 729-731页

作者： Mohammad Shafi Kuchay JoséIgnacio martínez-Montoro Camilo Julio Llamoza-Torres Josécarlos Fernández-García Bruno Ramos-Molina Division of Endocrinology and Diabetes Medanta The Medicity HospitalGurugramHaryanaIndia Department of Endocrinology and Nutrition Virgen de la Victoria University HospitalInstituto de Investigación Biomédica de Málaga(IBIMA)Faculty of MedicineUniversity of MálagaMálagaSpain Department of Gastroenterology Unit of HepatologyHospital Clínico Universitario Virgen de la ArrixacaMurciaSpain Department of Endocrinology and Nutrition Regional University Hospital of MálagaInstituto de Investigación Biomédica de Málaga(IBIMA)Faculty of MedicineUniversity of MálagaMálagaSpain Obesity and Metabolism Research Laboratory Biomedical Research Institute of Murcia(IMIB)MurciaSpain

Patients with liver cirrhosis,irrespective of etiology,have increased risk of liver-related and all-cause mortality(1).Also,the severity of cirrhosis determines health *** instance,patients with compensated cirrhosis have a nearly five-fold increased risk of death,while those with decompensated cirrhosis have approximately a 10-fold increased risk compared with the general population(1).Furthermore,the median survival time of patients with compensated cirrhosis is 12 years,while it is only 1.8 years in those with decompensated cirrhosis(2).Moreover,the presence of intercurrent conditions,such as sarcopenia(loss of skeletal muscle mass and function)may also compromise the prognosis of patients with cirrhosis(3).

关键词： cirrhosis mortality prognosis

Security-constrained model for integrated power and natural-gas system

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Journal of Modern Power Systems and Clean Energy 2017年第3期5卷 326-336页

作者： carlos M.CORREA-POSADA Pedro SáNCHEZ-martíN Sara LUMBRERAS XM Compania de Expertos en MercadosMedellı´nColombia Technological Research Institute(IIT) ICAI School of EngineeringComillas Pontifical UniversityMadridSpain

One of the main factors impacting the reliability of energy systems nowadays is the growing interdependence between electricity and gas networks due to the increase in the installation of gas-fired units. Securityconstrained unit commitment(SCUC) models are used to economically schedule generating units without compromising the system reliability. This paper proposes a novel SCUC formulation that includes dynamic gas constraints,such as the line pack, and transmission contingencies in power and gas networks for studying the integrated system reliability. A Benders’ decomposition with linear programming techniques is developed to be able to study large systems. By including dynamic gas constraints into the SCUC, the proposed model accounts for the flexibility and reliability that power systems require from gas systems in the short term. Case studies of different size and complexity are employed to illustrate how the reliability of one system is affected by the reliability of the other. These experiments show how both systems operate in a secure way(by including contingencies) increases operating costs by approximately 9% and also show how these costs can vary by 24% depending on the line pack scheduling.

关键词： Benders’decomposition Natural gas Reliability Security-constrained unit commitment

Experimental demonstration of full-field quantum optical coherence tomography

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Photonics Research 2020年第1期8卷 51-56页

作者： ZEFERINO IBARRA-BORJA carlos SEVILLA-gutiérrez ROBERTO RAMíREZ-ALARCóN HECTOR CRUZ-RAMíREZ ALFRED B.U'REN Centro de Investigaciones en Optica A.C. Lomadel Bosque 115Colonia Lomas del Campestre37150 LeonGuanajuatoMexico 2lnstituto de Ciencias NuclearesUniversidad Nacional Autonomade MexicoApartado Postal 70-54304510 DFMexico

We present,to the best of our knowledge,the first implementation of full-field quantum optical coherence tomography(FF-QOCT).In our system,we are able to obtain full three-dimensional(3D)information about the internal structure of a sample under study by relying on transversely resolved Hong–Ou–Mandel(HOM)interferometry with the help of an intensified CCD(ICCD)*** system requires a single axial scan,obtaining full-field transverse single-photon intensity in coincidence with the detection of the sibling photon for each value of the signal-idler temporal *** believe that this capability constitutes a significant step forward toward the implementation of QOCT as a practical biomedical imaging technique.

关键词： technique. quantum system

Non-linear modeling of kinetic and equilibrium data for the adsorption of hexavalent chromium by carbon nanomaterials:Dimension and functionalization

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Chinese Journal of Chemical Engineering 2019年第4期27卷 912-919页

作者： Miguel de la Luz-Asunción Eduardo E.Pérez-Ramírez Ana L.martínez-Hernández Victor M.Castano Víctor Sánchez-Mendieta carlos Velasco-Santos Facultad de Quimica Universidad Autonoma del Estado de Mexico Km. 12 de la carretera Toluca-Atlacomulco C.P. 50200 San Cayetano Toluca Estado de Mexico Mexico Tecnologico Nacional de Mexico-Instituto Tecnologico de Queretaro Division de Estudios de Posgrado e Investigacion Av. Tecnologico s/n esq. GraL Mariano Escobedo Col. Centro Historico C.P. 76000 Santiago de Queretaro Queretaro Mexico Centro de Fisica Aplicada y Tecnologia Avanzada Universidad Nacional Autonoma de Mexico Boulevard Juriquilla 3001 Queretaro 76230 Mexico

The adsorption capacities for the removal of hexavalent chromium from aqueous solutions by six carbon nanomaterials have been evaluated. Single-walled and multi-walled carbon nanotubes as received and after oxidation treatment, graphene oxide and reduced graphene oxide are the materials with different dimension and functionalization compared in this research. Carbon nanotubes have been modified using hydrogen peroxide as oxidizing agent under microwave radiation. The oxidation treatment on carbon nanotubes has a positive effect increasing the adsorbent–adsorbate interaction. Rate-controlling mechanisms and equilibrium data are analyzed using non-linear models. Non-linear method is proposed as the most suitable method for determining the kinetic and equilibrium parameters. The values of adsorption energy(E) obtained from the Dubinin–Radushkevich isotherm,have been found around 0.371 and 0.870 k J·mol-1, indicating physical adsorption. Therefore, the pseudo-second order model represents better the kinetic experimental data. The results show that the Langmuir isotherm provides a slightly better fit to the experimental data compared with the Freundlich isotherm, indicating homogeneous distribution of active sites on carbon nanomaterials and monolayer adsorption. The separation factors RLare found in the range of 0–1, suggesting that the adsorption process is suitable for all adsorbents. The mechanisms for hexavalent chromium removal have been proposed as electrostatic interactions and hydrogen bonding.

关键词： Carbon nanotubes Graphene Adsorption Hexavalent chromium Kinetic

Modeling of potential habitat suitability of Hippocamelus bisulcus: effectiveness of a protected areas network in Southern Patagonia

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Ecological Processes 2017年第1期6卷 296-309页

作者： Yamina Micaela Rosas Pablo LPeri Alejandro Huertas Herrera Hernán Pastore Guillermo martínez Pastur Laboratorio de Recursos Agroforestales Centro Austral de Investigaciones Científicas(CONICET)Houssay 200Ushuaia 9410Tierra del FuegoArgentina UNPA-INTA-CONICET.CC 332 Río Gallegos 9400Santa CruzArgentina Delegación Regional Patagonia Norte Administración de Parques NacionalesVicealmirante O’Connor 1188San Carlos de Bariloche 8400Río NegroArgentina

Introduction:Huemul(Hippocamelus bisulcus Molina)is the most threatened flag species of Southern Patagonia,where conservation efforts were not effective to avoid the retraction of its distribution *** quality modeling can assist to design better management strategies for regional conservation *** objective was to elaborate one habitat suitability map for huemul,defining the environmental characteristics at landscape level,and determining the distribution of the suitable habitat inside the current natural reserve ***:We used a database of 453 records and explored 40 potential explanatory variables(climate,topographic,and landscape variables including human-related ones)to develop one habitat suitability map using the Environmental Niche Factor Analysis(ENFA)for Santa Cruz province(Argentina).We combined the outputs in a GIS project using different shapes,including the current natural reserve ***:We defined the potential habitat for huemul,where forest edges and ecotone zones(e.g.,mainly alpine environments)were the most important environmental variables,as well as some forest types(e.g.,Nothofagus pumilio).Habitat losses were found in the extreme potential distribution areas(northern and southern areas),probably related to the increasing ranch *** current natural reserve network maintains approximately half of the huemul potential habitat in Santa Cruz province,where National Parks presented the similar conservation importance than the Provincial natural ***:Habitat suitability model for huemul can be used as a decision support system for new management strategies at different landscape levels to improve the current conservation efforts.

关键词： Nothofagus forests ENFA Habitat loss Conservation Species requirements

Colorectal cancer metastases to the thyroid gland:A case report

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World Journal of Gastrointestinal Surgery 2020年第3期12卷 116-122页

作者： Patricia Ciriano Hernández carlos martínez Pinedo Enrique Calcerrada Alises Esther García Santos Susana Sánchez García Rafael Picón Rodríguez Elisa Jiménez Higuera Daniel Sánchez Peláez Violeta Herrera Montoro esús martín Fernández Department of Surgery Hospital General Universitario de Ciudad RealCiudad Real 13005Spain Department of Pathology Hospital General Universitario de Ciudad RealCiudad Real 13005Castilla La ManchaSpain

BACKGROUND Secondary malignancies of the thyroid gland are a rare finding in clinical *** addition,colorectal metastasis to the thyroid(CMT)is even more infrequently *** source of the primary tumor follows demographic and ethnic patterns,which reflects the most prevalent malignancies in the different *** cancer is one of the most common types of cancer worldwide;nevertheless,CMT is infrequently *** of them are identified during the follow-up of gastrointestinal primary *** to the improvement of image techniques,oncological treatment,and follow-up,survival and consequent diagnosis of metastatic disease are more *** facts make this entity a diagnostic and therapeutic challenge,due to the lack of information and the difficulties performing clinical trials and *** SUMMARY Here,we present a case report of a patient diagnosed with CMT of adenocarcinoma of the rectum evidenced during follow-up,4 years after neoadjuvant chemoradiotherapy,who had subsequent curative surgical treatment of the primary tumor and inter-current lung bilateral *** Thyroid metastases of extra-thyroid origin are an uncommon finding,even rarer in cases of *** diagnostic process,as well as survival of oncologic patients is improving,and consequently the number of metastases to the thyroid gland is increasing.

关键词： Colorectal cancer metastases Thyroid gland Case report Thyroid metastases

The Spatial-Temporal Heterogeneity of Understory Light Availability in a Temperate Forest of North China

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Phyton-International Journal of Experimental Botany 2021年第6期90卷 1633-1644页

作者： Jie Li Ziyu Zhou Yun Chen Qiusheng Yang carlos alberto Busso College of Landscape Architecture and Art Henan Agricultural UniversityZhengzhou450002China College of Life Sciences Henan Agricultural UniversityZhengzhou450002China Departamento de Agronomía-CERZOS(CONICET) Universidad Nacional del SurBahía BlancaBuenos Aires8000Argentina

The spatial-temporal variation of understory light availability has important influences on species diversity and community ***,the distribution characteristics and influencing factors of understory light availability have not been fully elucidated,especially in temperate deciduous,broad-leaved *** this study,the understory light availability was monitored monthly(May–October)in a temperate deciduous,broad-leaved forest in Henan Province,*** in the light availability among different months and habitat types were statistically analyzed using Kruskal–Wallis method,*** least squares path modeling(PLS-PM)was used to explore the direct and/or indirect effects of stand structure,dominant species and topographic factors on the light *** showed that there were differences in light environments among the four habitat types and during the studied six *** PLS-PM results showed that the stand structure and the dominant species were negatively correlated with the light environment,and the path coefficient values were−0.089(P=0.042)and−0.130(P=0.004),*** result indicated that the understory light availability exhibit a distinct spatial and temporal heterogeneity in temperate deciduous,broad-leaved forest of north *** characteristics of woody plant community,especially the abundance of one of the dominant plant species,were the important factors affecting the understory light availability.

关键词： Dominant species forest canopy stand structure forest dynamic monitoring plot