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Textural and geochemical characteristics of late Pleistocene to Holocene fine-grained deep-sea sediment cores(GM6 and GM7),recovered from southwestern Gulf of Mexico

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Journal of Palaeogeography 2018年第3期7卷 253-271页

作者： abigail anaya-gregorio John S.Armstrong-Altrin Marfa Luisa Machain-Castillo Patricia C.Montiel-Garcia Mayla A.Ramos-Vazquez Licenciatura en Ingenieria en Geologia Ambiental Area Academica de Ciencias de la Tierra y MaterialesUniversidad Autonoma del Estado de HidalgoMineral de la ReformaHidalgoMexico. Instituto de Ciencias del Mary Limnologia Universidad Nacional Autenoma de MexicoUnidad de Procesos Oceanicos y CosterosCiudad Universitaria04510 Ciudad de MexicoMexico. Area Academica de Ciencias de la Tierra y Materiales Universidad Autonoma del Estado de HidalgoCiudad UniversitariaCarretera Pachuca-Tulancingo Km 4.5Col.CarbonerasC.P.42184 Mineral de la ReformaHidalgoMexico. Posgrado en Ciencias del Mary Limnologia Universidad Nacional Autonoma de MexicoCiudad Universitaria3000CoyoacanC.P.04510 Ciudad de MexicoMexico.

Texture, mineralogy, geochemistry, and 14C ages of two deep-sea sediment cores （GM6 and GM7） recovered in the southwestern Gulf of Mexico were investigated to infer their provenance and depositional condition. The sediments are enriched in fine-grained silt and clay and poor in sand content. Mineralogically, the sediments consist of quartz, calcite, smectite, and kaolinite. Based on the ]4C data, the age of the GM6 and GM7 sediment cores were calculated as 23,615 cal yrs. BP and 19,007 cal yrs. BP, respectively. The weathering indices such as chemical index of alteration （CIA）, chemical index of weathering （CIW）, and plagioclase index of alteration （PIA） in GM6 （56-69, 60-74, and 6]-73, respectively） and GM7 （54-69, 57-76, and 55-74, respectively） cores revealed a moderate-to-high intensity of weathering. The rare earth element （REE） patterns suggested that the sediments were derived mostly by the weathering of intermediate rocks, exposed along the coastal regions of the Gulf of Mexico. The trace elemental ratios like V/Cr （〈2）, Ni/Co （〈2）, and Cu/Zn （〈1）, authigenic uranium content （〈1）, and Ce anomaly （Ce/Ce＊ ≤1） suggested that the sediments were deposited under an oxic condition, which was also revealed by the benthic foraminiferal assemblages throughout the GM6 and GM7 sediment cores.

关键词： Radiocarbon age Manganosite Weathering Palaeoredox condition Provenance Holocene Gulf of Mexico

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Data-driven drug repositioning using olfactory omics profiles:challenges and perspectives in neurodegeneration

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Neural Regeneration Research 2025年第7期20卷 1997-1998页

作者： Paz Cartas-Cejudo Adriana Cortés Mercedes Lachén-Montes Elena anaya-Cubero Joaquín Fernández-Irigoyen Enrique Santamaría Clinical Neuroproteomics Unit Proteomics PlatformNavarrabiomedHospitalario Universitario de Navarra(HUN)Universidad Pública de Navarra(UPNA)IdiSNANavarra Institute for Health ResearchPamplonaSpain

Data-driven drug repositioning using olfactory omics profiles-challenges and perspectives in neurodegeneration:Neurodegenerative diseases are characterized by progressive degeneration and loss of neuronal function in the central nervous *** diseases are often characterized as proteinopathies,which are disorders primarily driven by the aggregation or misfolding of specific amyloid proteins within cells,leading to their dysfunction and eventual *** the gain-of-function hypothesis related to the aggregation of these proteins,recently,an alternative hypothesis regarding the loss-of-function of the soluble monomeric proteins during the process of aggregation into amyloids is gaining *** last event is called proteinopenia and refers to conditions characterized by a deficiency or decrease in the levels of specific soluble proteins in the body(Ezzat et al.,2023).It has been demonstrated that levels of soluble proteins involved in neurodegenerative diseases are decreased.

关键词： diseases drug amyloid

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Some facets of the Mg/Na_(3)VCr_(0.5)Fe_(0.5)(PO_(4))_(3) battery

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Chinese Chemical Letters 2024年第10期35卷 469-473页

作者： gregorio F.Ortiz Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021China

Magnesium rechargeable batteries(MRBs)present opportunities for grid-scale energy storage applications as a complement to Li-ion batteries(LIBS).The major challenges are the low reversible capacity,inferior cycling stability and unsatisfactory energy ***_(3)VCr_(0.5)Fe_(0.5)(PO_(4))_(3) with a well-defined NASIONtype structure is used as cathode in Mg ***-electrons reaction(~116 m Ah/g),1.5 V average voltage and 65%of capacity retention over 100 cycles are *** is inserted by a biphasic reaction with the participation of V3+/V4+/V5+redox couples in the electrochemical reaction while the non-active redox couples such as Cr^(3+)/Cr^(4+)and Fe^(2+)/Fe^(3+)served as stabilizer to buffer the volume variation.A thermal stability up to~412℃ is also ***,incorporating a mixture of three transition metal(V/Cr/Fe)in this type of structures will broaden new perspectives for realizing high performance cathodes for MRBs.

关键词： Multi-electron reaction Mg batteries NASICON Na_(3)VCr_(0.5)Fe_(0.5)(PO_(4))_(3) Ironand chromium doping

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Role of Thermal Stresses in Degradation of High Power Laser Diodes

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Transactions of Nanjing University of Aeronautics and Astronautics 2014年第2期31卷 186-190页

作者： Juan Jimenez Julian anaya Jorge Souto GdS Optronlab Ed.i+dUniversidad de Valladolid

Catastrophic degradation of high power laser diodes is due to the generation of extended defects inside the active parts of the laser structure during the laser *** mechanism driving the degradation is strongly related to the existence of localized thermal stresses generated during the laser *** thermal stresses can overcome the yield strength of the materials forming the active part of the laser *** factors contribute to reduce the laser power threshold for *** them the thermal transport across the laser structure constitutes a critical issue for the reliability of the device.

关键词： high power laser diodes thermal stresses laser degradation extended defects

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Intestinal pseudo-obstruction caused by herpes zoster:Case report and pathophysiology

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World Journal of Clinical Cases 2018年第6期6卷 132-138页

作者： Roberto anaya-Prado José V Pérez-Navarro Ana Corona-Nakamura Michelle M anaya-Fernández Roberto anaya-Fernández Marian Eliza Izaguirre-Pérez Department of Surgery at Western Medical Center the Mexican Institute of Social Security Division of Research at Autonomous University of Guadalajara Department of Infectious Diseases at Western Medical Center the Mexican Institute of Social Security Division of Research at University of Guadalajara

Herpes zoster(HZ) infection occurs in approximately 10% to 30% of individuals. Visceral neuropathies secondary to HZ can cause cystitis and urinary retention. But colonic pseudo-obstruction can also occur. Peripheral neuropathy may reveal segmental motor paresis of either upper or lower limbs, the abdominal muscles or the diaphragm. We report the case of a 62-year-old male patient who presented with abdominal distention and cutaneous vesicular eruption on the left side of the abdominal wall. Plain X-rays and computed tomography scan showed distended small bowel. A diagnosis of intestinal pseudo-obstruction was made secondary to segmental paresis of the small intestine and visceral neuropathy. Conservative management was successful and the patient was discharged uneventfully. Intestinal pseudo-obstruction ought to be consideredwhen dealing with non-obstructive(adynamic) conditions of the digestive tract associated with HZ infection; since early recognition may help to avoid unnecessary surgery.

关键词： Ogilvie’s symdrome Herpes zoster virus Neuropathies Intestinal pseudo-obstruction

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Reactivation of hepatitis B virus infection after cytotoxic chemotherapy or immunosuppressive therapy

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World Journal of Gastroenterology 2011年第12期17卷 1531-1537页

作者： María Luisa Manzano-Alonso gregorio Castellano-Tortajada Department of Gastroenterology Hospital 12 de OctubreAv Andalucia28041 MadridSpain

Reactivation of hepatitis B is defined as the recurrence or an abrupt rise in hepatitis B virus(HBV) replication,often accompanied by an increase in serum transaminase levels,and both events occurring in a patient with a previous inactive hepatitis B *** reactivation can occur in situations in which the ratio of HBV replication and immune response is *** can happen during the treatment of hemato-oncological malignancies with chemotherapy and in immunosuppression of autoimmune *** manifestations of hepatitis B reactivation are variable and can range from asymptomatic to acute hepatitis,which are sometimes serious and result in acute liver failure with risk of death,and usually occur in the periods between cycles or at the end of *** drugs such as corticosteroids or azathioprine can induce HBV reactivation in patients carrying hepatitis B virus surface antigen(HBsAg) or anti-HBc,but much less frequently than chemotherapy *** tumor necrosis factorαinhibitors infliximab,etanercept and adalimumab may cause reactivation of hepatitis B,and the overall frequency with infliximab may be similar(50%-66%) to that caused by *** HBV serology is recommended for all patients receiving chemotherapy and immunosuppressive drugs,and HBsAg positive patients should receive anti-HBV prophylaxis to decrease virus reactivation and death rates.

关键词： Hepatitis B Immune response Immunosuppression Reactivation

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A Script-Based Prototyping Framework to Boost Agile-UX Developments

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Journal of Computer Science & Technology 2016年第6期31卷 1246-1261页

作者： Pedro Luis Mateo Navarro gregorio Martinez Perez Diego Sevilla Ruiz Catedra Sociedad Anonima de Electrdnica Submarina ( SAES) Laboratories University of Murcia Murcia 30100 Spain

Prototypes are described as a successful mechanism to incorporate user-experience design （UX） into Agile de- velopments, but their integration into such developments is not exempt from difficulties. Prototypes and final applications are often developed using different tools, which hinders the collaboration between designers and developers and also compli- cates reuse. Moreover, integrating stakeholders such as clients and users into the Agile process of designing, evaluating, and refining a prototype is not straightforward mainly because of its iterative nature. In an attempt to tackle these problems, this work presents the design and implementation of a new framework in which scripting languages are used to code prototyped behaviors. Prototyping is then treated as a separate aspect that coexists and runs together with final functionality. Using this framework communication is enhanced because designers and developers work in parallel on the same software artifact. Prototypes are fully reused and iteratively added with final functionality while prototyped behaviors are removed. They can be also modified on the fly to implement participatory design techniques.

关键词： prototype Agile development aspect-oriented development scripting language participatory design

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Environmental Factors that Affect Primary Plant Succession Trajectories on Lahars(Popocatépetl Volcano,Mexico)

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Journal of Mountain Science 2015年第5期12卷 1254-1266页

作者： GARCIA-ROMERO Arturo ALANIS-anaya Rocío Marisol MUNOZ-JIMENEZ Julio Departamento de Geografía Física Instituto de GeografíaUniversidad Nacional Autónoma de México.Circuitoexterior s/nCiudad Universitaria04510 MexicoDistrito FederalMexico Laboratorio de Análisis Geoespacial Instituto de GeografíaUniversidad Nacional Autónoma de México.Circuitoexterior s/nCiudad Universitaria04510 MexicoDistrito FederalMexico Departamento de A.G.R.y Geografía Física Facultad de Geografía e HistoriaUniversidad Complutense de Madrid.Calle Profesor Aranguren s/nCiudad Universitaria28040MadridSpain

The earliest stages of plant succession on severely disturbed sites usually follow highly unpredictable trajectories. However, in the Popocatépetl volcano area(50 km SE of Mexico City),the development of physiognomically distinct primary plant communities suggests the occurrence of various successional trajectories only 10 years after the onset of colonization of a temperate forest on lahars. To characterize plant communities and determine the environmental factors that drive the differences observed between plant communities and their successional trajectories, we monitored 64 circular sample plots(3.14 m2) from 2002 to 2011. We examined the plant communities' composition and structure in terms of their species richness and abundance, plant cover, and maximum stem height,and recorded 13 environmental factors related to the volcanic deposit characteristics, microclimate, soil,flow dynamics and gravitational processes. A cluster analysis of the species abundance data showed that,by 2011, six plant community types(CT's) had established, including grasslands, and open, dense and very dense shrub lands. As these communities developed over the same period of time and within the same overall ecosystem, then these plant community types were interpreted as different stages of the same successional trajectory. Two sequential main stages that drive regeneration were identified from this successional trajectory: a) the first four years are characterized by a steady increase in species richness and physiognomic development(plant size and coverage), mostly dominated by Baccharis conferta, Eupatorium glabratum and Senecio barbajohannis; b) from the sixth year onwards, a continued increase in the abundance of those same species led to the development of the dense shrubland *** in the availability of soil resources and disturbances linked to recent lahar flows were the main factors accounting for such differences.

关键词： Ecosystem regeneration Plantcolonization Primary succession Temperate forest Light exposure Elevation Soil Slope aspect

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Insular effect on sexual size dimorphism in the clouded anole Anolis nebulosus\when Rensch meets Van Valen

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Current Zoology 2020年第5期66卷 589-591页

作者： Zarem A.anaya-Meraz Armando H.Escobedo-Galvan Centro Universitario de la Costa Universidad de GuadalajaraAv.Universidad 20348280 Puerto VallartaJaliscoMexico

Insular biodiversity has aroused the curiosity of biologists in assessing ecological and evolutionary hypotheses concerning their mainland *** of particular life history traits between island and mainland populations have provided a broader view of phenotypic and behavioral plasticity at both intraspecific and interspecific levels(Meiri 2007).

关键词： mainland island cloud

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Nonlinear dynamics of the reversed shear Alfvén eigenmode in burning plasmas

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Plasma Science and Technology 2024年第5期26卷 1-16页

作者：王涛魏士朝 Sergio BRIGUGLIO gregorio VLAD Fulvio ZONCA 仇志勇 Institute for Fusion Theory and Simulation and School of Physics Zhejiang UniversityHangzhou 310027People’s Republic of China Center for Nonlinear Plasma Science ENEA C.R.FrascatiFrascati 00044Italy Fusion and Nuclear Safety Department ENEA C.R.FrascatiFrascati 00044Italy

In a tokamak fusion reactor operated at steady state,the equilibrium magnetic field is likely to have reversed shear in the core region,as the noninductive bootstrap current profile generally peaks *** reversed shear Alfvén eigenmode(RSAE)as a unique branch of the shear Alfvén wave in this equilibrium,can exist with a broad spectrum in wavenumber and frequency,and be resonantly driven unstable by energetic particles(EP).After briefly discussing the RSAE linear properties in burning plasma condition,we review several key topics of the nonlinear dynamics for the RSAE through both wave-EP resonance and wave-wave coupling channels,and illustrate their potentially important role in reactor-scale fusion *** means of simplified hybrid MHD-kinetic simulations,the RSAEs are shown to have typically broad phase space resonance structure with both circulating and trapped EP,as results of weak/vanishing magnetic shear and relatively low *** the route of wave-EP nonlinearity,the dominant saturation mechanism is mainly due to the transported resonant EP radially decoupling with the localized RSAE mode structure,and the resultant EP transport generally has a convective *** saturated RSAEs also undergo various nonlinear couplings with other collective *** typical routes as parametric decay and modulational instability are studied using nonlinear gyrokinetic theory,and applied to the scenario of spontaneous excitation by a finite amplitude pump *** RSAEs could naturally couple and induce the spectral energy cascade into a low frequency Alfvénic mode,which may effectively transfer the EP energy to fuel ions via collisionless Landau ***,zero frequency zonal field structure could be spontaneously excited by modulation of the pump RSAE envelope,and may also lead to saturation of the pump RSAE by both scattering into stable domain and local distortion of the continuum structure.

关键词： reversed shear Alfvén eigenmode energetic particle nonlinear gyrokinetic theory saturation burning plasma

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