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Within-brood body size and immunological differences in Blue Tit(Cyanistes caeruleus)nestlings relative to ectoparasitism

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Avian Research 2022年第3期13卷 362-368页

作者： Jorge Garrido-Bautista Antonio Soria Cristina E.Trenzado Amalia pérez-jiménez Eliana pintus josé luis Ros-Santaella Nicola Bernardo Mar Comas Stanislav Kolencík Gregorio Moreno-Rueda Departamento de Zoología Facultad de CienciasUniversidad de Granada18071GranadaSpain Departamento de Biología Celular Facultad de CienciasUniversidad de Granada18071GranadaSpain Department of Veterinary Sciences Faculty of AgrobiologyFood and Natural ResourcesCzech University of Life Sciences PragueKamýck a 12916500Prague 6SuchdolCzech Republic Estaci on Biol ogica de Do~nana EBD-CSICAv.Am erico Vespucio 2641092SevilleSpain Department of Biological Sciences Dartmouth CollegeNH03755HanoverUSA Department of Biology University of NevadaNV89557RenoUSA

Several ectoparasites parasitise nestlings decreasing their body condition,growth and survival.To minimise any loss of fitness due to ectoparasites,birds have developed a wide variety of defence mechanisms,potentially including hatching asynchrony.According to the Tasty Chick Hypothesis(TCH),the cost of parasitism would be reduced if ectoparasites tend to eat on less immunocompetent nestlings,typically the last-hatched chick in asynchronously hatched broods,as they are in poor body condition.Two predictions of the TCH are that immune capacity is lower in smaller nestlings than in larger ones and that parasites should provoke a more negative effect on smaller nestlings.Here,we test these predictions in a population of Blue Tits(Cyanistes caeruleus)whose broods are parasitised by Hen Fleas(Ceratophyllus gallinae)and Blowflies(protocalliphora azurea).We recorded the presence of both ectoparasites and analysed the immunocompetence(number of leucocytes per 10,000 erythrocytes and cutaneous immune response to phytohaemagglutinin)and body condition of smaller and larger nestlings within individual broods.The leucocyte count was higher in smaller nestlings than in larger ones,whereas the cutaneous immune response did not differ between smaller and larger nestlings.Smaller nestlings,but not larger nestlings,had lower body mass when fleas were present.Blowflies,by contrast,had no detectable negative effect on nestlings.Overall,our findings provide partial support to the TCH.Lower immune capacity in smaller nestlings than in larger ones was not supported,but Hen Fleas seemed to negatively impact on smaller nestlings more than on larger ones.

关键词： Blowflies Blue tit Cyanistes caeruelus Ectoparasites Hen fleas Immunocompetence Tasty Chick Hypothesis

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Multi-temporal NDVI analysis using UAV images of tree crowns in a northern Mexican pine-oak forest

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林业研究:英文版 2023年第6期34卷 1855-1867页

作者： joséluis Gallardo-Salazar Marcela Rosas-Chavoya Marín pompa-García pablito Marcelo López-Serrano Emily García-Montiel Arnulfo Meléndez-Soto Sergio Iván jiménez-jiménez Instituto de Investigaciones Agropecuarias y Forestales Universidad Michoacana de San Nicolás de Hidalgo(UMSNH)58330 MoreliaMichoacánMexico programa Institucional de Doctorado en Ciencias Agropecuarias y Forestales Universidad Juárez del Estado de DurangoRío Papaloapan y Blvd.DurangoValle del Sur s/n34120 DurangoDurangoMéxico Facultad de Ciencias Forestales Universidad Juárez del Estado de DurangoRío Papaloapan y Blvd.DurangoValle del Sur s/n34120 DurangoDurangoMéxico Instituto de Silvicultura e Industria de la Madera Universidad Juárez del Estado de DurangoBoulevard del Guadiana 501Ciudad UniversitariaTorre de Investigación34120 DurangoMéxico INIFAp-CENID RASpA Centro Nacional de Investigación Disciplinaria en Relación Agua-Suelo-planta-Atmósfera Margen derecha canal Sacramento km 6.5Zona industrial35140 Gómez PalacioDurangoMexico

The use of unmanned aerial vehicles(UAV)for forest monitoring has grown significantly in recent years,providing information with high spatial resolution and temporal versatility.UAV with multispectral sensors allow the use of indexes such as the normalized difference vegetation index(NDVI),which determines the vigor,physiological stress and photo synthetic activity of vegetation.This study aimed to analyze the spectral responses and variations of NDVI in tree crowns,as well as their correlation with climatic factors over the course of one year.The study area encompassed a 1.6-ha site in Durango,Mexico,where pinus cembroides,pinus engelmannii,and Quercus grisea coexist.Multispectral images were acquired with UAV and information on meteorological variables was obtained from NASA/pOWER database.An ANOVA explored possible differences in NDVI among the three species.pearson correlation was performed to identify the linear relationship between NDVI and meteorological variables.Significant differences in NDVI values were found at the genus level(pinus and Quercus),possibly related to the physiological features of the species and their phenology.Quercus grisea had the lowest NDVI values throughout the year which may be attributed to its sensitivity to relative humidity and temperatures.Although the use of UAV with a multispectral sensor for NDVI monitoring allowed genera differentiation,in more complex forest analyses hyperspectral and LiDAR sensors should be integrated,as well other vegetation indexes be considered.

关键词： Multispectral images Normalized diff erence Vegetation index phenology Unmanned aerial vehicles Multitemporal analysis

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A New perspective of the Force on a Magnetizable Rod inside a Solenoid

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Journal of Electromagnetic Analysis and Applications 2018年第10期10卷 171-183页

作者： josé-luis jiménez-Ramírez Ignacio Campos-Flores josé-Antonio-Eduardo Roa-Neri Departamento de Física Facultad de Ciencias Universidad Nacional Autónoma de México México D. F. México área de Física Teórica y Materia Condensada División de Ciencias Básicas e Ingeniería Universidad Autónoma Metropolitana Unidad Azcapotzalco México D. F. México

We analyze the familiar effect of the pulling of a magnetizable rod by a magnetic field inside a solenoid. We find that the analogy with the pulling of a dielectric slab by a charged capacitor is not as direct as usually thought. Indeed, there are two possibilities to pursue the analogy, according to the correspondence used,?either E → B and D → H, or E?→ H and D?→ B. One of these results in an incorrect sign in the force, while the other gives the correct result. We avoid this ambiguity in the usual energy method applying a momentum balance equation derived from Maxwell’s equations. This method permits the calculation of the force with a volume integration of a force density, or with a surface integration of a stress tensor. An interpretation of our results establishes that the force acts at the interface and has its origin in Maxwell′s magnetic stresses at the medium-vacuum interface. This approach provides new insights and a new perspective of the origin of this force.

关键词： Force on a Rod in a Solenoid Magnetostatic Force Maxwell Momentum Balance Equation

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Induced Dipoles in Electromagnetic Media in Motion

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Journal of Electromagnetic Analysis and Applications 2018年第11期10卷 185-192页

作者： josé-Antonio-Eduardo Roa-Neri josé-luis jiménez-Ramírez Ignacio Campos-Flores área de Física Teórica y Materia Condensada División de Ciencias Básicas e Ingeniería Universidad Autónoma Metropolitana Unidad Azcapotzalco México D. F. México Departamento de Física Facultad de Ciencias Universidad Nacional Autónoma de México México D. F. México

We present a non-relativistic approach to the equivalent polarization peq=(1/c2)v×Meq, that appears in a magnetized medium in motion. We apply an analogous method to that used by panofsky and phillips to calculate the symmetric effect, the equivalent magnetization that appears in a polarized dielectric in motion, Meq=p×v,?This method is based on a particular expression of Maxwell’s equations and the application of the convective derivative. These authors argue, however, that the equivalent polarization can be obtained only with a relativistic approach. We show that with the same method, but with a different and equivalent expression of Maxwell’s equations, this effect can also be calculated. In this way both effects can be considered relativistic effects to first order in v/c.

关键词： Moving Media polarized Dielectric Macroscopic Maxwell Equations Induction of Magnetic Dipoles

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Suppression Effects on pineapple Soil-Borne pathogens by Crotalaria juncea,Dolomitic Lime and plastic Mulch Cover on MD-2 Hybrid Cultivar

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phyton-International Journal of Experimental Botany 2021年第4期90卷 1205-1216页

作者： luis Alfonso Aguilar pérez Daniel NietoÁngel Moisés Roberto Vallejo pérez Daniel Leobardo Ochoa Martínez David Espinosa Victoria Andrés Rebolledo Martinez Abel Rebouças São josé Fitopatología Colegio de PostgraduadosMontecillo-Texcoco56230México CONACyT-Universidad Autónoma de San luis potosí CIACYTSan Luis Potosí78000México Edafología Colegio de PostgraduadosMontecillo-Texcoco56230México Instituto Nacional de Investigaciones Forestales Agrícolas y PecuariasVeracruz94270México Rebouças São josé A.UESB/DFZVitória da Conquista95Brasil

The development and implementation of sustainable and environmentally friendly agricultural practices are indispensable as alternatives to pesticide use and to keep populations of soil-borne plant pathogens at levels that do not affect crop productivity.The present research evaluates the incidence of soil-borne phytopathogens on the pineapple variety MD-2,which was subjected to different treatments:Incorporation of Crotalaria juncea into the soil(organic amendment),application of dolomitic lime to soil(inorganic amendment),and the use of plastic mulch covering the soil.During the crop cycle(15 months),the following variables were evaluated:plant height(cm),fruit weight(kg·plant^(−1)),crop yield(ton·ha^(−1)),the bud root disease incidence caused by phytophthora nicotianae,number of soil phytoparasitic nematodes and colony-forming-units(CFUs)of soil fungi and oomycetes.The results indicate that Crotalaria juncea treatment reduced the pathogen population(nematode and oomycetes)at levels that did not affect crop development,so that yield increased(18–20%).The incorporation of C.juncea into the soil as an organic amendment favors the populations of fungi disease suppressors(Trichoderma-Aspergillus).The phytoparasitic nematodes(Meloidogyne sp.,pratylenchus sp.,and Mesocriconema sp.)and oomycetes(phytophthora spp.,and pythium spp.)showed a reduction of their population levels by effects of organic amendment(C.juncea).The plastic mulch was also effective,probably due to the maintenance of optimal condition to crop growth and weed control.However,the dolomitic lime application had the poorest effect under the conditions of the study area on the variables analyzed.The described observations are characteristics of a system-based approach for the potential management of soil-borne pathogens of pineapple MD-2 in Veracruz,México.

关键词： Suppressive soil integrated pest management phytophthora nicotiannae phytoparasitic nematodes

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Foaming supramolecular surfactants for gas mobility control in naturally fractured carbonate reservoirs at high temperature,salinity,and hardness

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petroleum Science 2022年第6期19卷 3134-3148页

作者： Enrique Soto-Castruita Raúl Hern andez-Altamirano Eduardo Buenrostro-González Erick-Emanuel Luna-Rojero Sung Jae Ko-Kim Violeta-Yasmín Mena-Cervantes Mirna pons-jiménez Jorge-Francisco Ramírez-pérez David-Aaσn Nieto-Alvarez Ricardo Cerón-Camacho jos e-Ernesto parra Raúl Oviedo-Roa jos e-Manuel Martínez-Magadán Rodolfo Cisneros-Dévora luis-S.Zamudio-Rivera Instituto Mexicano del petr oleo Eje Central Lazaro Cardenas Norte 152Col.San Bartolo AtepehuacanCiudad de Mexico07730Mexico CONACy T-Instituto Mexicano del petroleo Eje Central Lazaro Cardenas Norte 152Col.San Bartolo AtepehuacanCiudad de Mexico07730Mexico Centro Mexicano para la produccion mas Limpia Instituto Politecnico NacionalAvenida Acueducto s/nCol.La Laguna TicomanCiudad de Mexico07340Mexico Centro de Tecnologías para Exploracion y produccion Camino de Terracería 800Col.San Jose NovilleroBoca delRíoVeracruz94286Mexico

Oil production and mainte nance are essential issues in naturally fractured reservoirs because they are the largest and most productive on earth.However,they present early water and gas channeling but could be remediated by using foaming agents to control these phenomena through blocking channeling areas.In Mexico these reservoirs have pressure up to 5,500 psi,high temperature up to 200℃,salinity up to400,000 ppm,and hardness up to 250,000 ppm;due to these thermodynamic conditions,there has been no available technology to form stable enough foams.In this work,a foaming supramolecular surfactant with the capability to chelate Ca^(2+)ions is examined.As a result,surfactant monomers are bridged by captured Ca^(2+)cations leading to the formation of high-molecular-weight oligomers,which significantly increment the viscosity of the solution improving the foam stability,and since at this manner the Ca2+cations are no longer available to precipitate as components of solid salts,the foaming supramolecular surfactant also performs as antiscalant.These observations are explained through quantum theoretical modeling.The foam is stable,effectively blocking the gas channels,whereas in presence of oil the foam is broken leading the oil to pass into the wellbore.The characteristic rheological properties of the foam allow its injection into the formation at a range of flow rates,foam qualities,and shear stress to achieve the flooding and the blocking of a variety of fractured carbonate formations,and the change of the wettability of the matrix,which is a desirable behavior in a huff and puff process,as reported in a previous publication about a successful pilot test of this foam.

关键词： Calcium chelation Foaming composition Supramolecular surfactant Molecular design Gas mobility control Flow assurance Improved oil recovery Conformance control

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Sintering study of Ti6Al4V powders with different particle sizes and their mechanical properties

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International Journal of Minerals,Metallurgy and Materials 2018年第12期25卷 1389-1401页

作者： joséluis Cabezas-Villa joséLemus-Ruiz Didier Bouvard Omar jiménez Héctor Javier Vergara-Hernández luis Olmos University Michoacana of San Nicolás of Hidalgo IIMMMorelia 58060México University Grenoble Alpes CNRSSIMaPGrenoble 38000France University of Guadalajara Departamento de Ingeniería de ProyectosZapopan 45100México National Technological Institute of Mexico I.T.MoreliaMorelia 58120México University Michoacana of San Nicolás of Hidalgo INICITMorelia 58060México

Ti6Al4V powders with three different particle size distributions(0–20, 20–45, and 45–75 μm) were used to evaluate the effect of the particle size distribution on the solid-state sintering and their mechanical properties. The sintering kinetics was determined by dilatometry at temperatures from 900 to 1260°C. The mechanical properties of the sintered samples were evaluated by microhardness and compression tests. The sintering kinetics indicated that the predominant mechanism depends on the relative density irrespective of the particle size used. The mechanical properties of the sintered samples are adversely affected by increasing pore volume fraction. The elastic Young's modulus and yield stress follow a power law function of the relative density. The fracture behavior after compression is linked to the neck size developed during sintering, exhibiting two different mechanisms of failure: interparticle neck breaking and intergranular cracking in samples with relative densities below and above of 90%, respectively. The main conclusion is that relative density is responsible for the kinetics, mechanical properties, and failure behavior of Ti6 Al4 V powders.

关键词： Ti6Al4V powders dilatometry microhardness sintering kinetics compression failure behavior

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Antifeedant Activity of Caesalpinia coriaria Essential Oil Against Incisitermes marginipennis (Latreille)

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phyton-International Journal of Experimental Botany 2021年第3期90卷 907-920页

作者： Cesar B.Ramírez-López Rita Beltrán-Sánchez Alistair Hernández-Izquierdo joséluis Salvador-Hernández Eduardo Salcedo-pérez Rosa E.del Río Mauro M.Martínez pacheco Instituto de Investigaciones Químico Biológicas Universidad Michoacana de San Nicolás de HidalgoMorelia58030Mexico Departamento de Botánica y Zoología CUCBA Universidad de GuadalajaraNextipac45200Mexico

This study scrutinized the possibility of finding toxicant or deterrent plant metabolites against the dry wood termite Incisitermes marginipennis(Latreille).plant deterrent agents act as repellents or antifeedants to prevent wood decay and increase its useful life.The potential of the tree Caesalpinia coriaria(Fabaceae)as a biological source of molecules with deterrent effects against the dry wood termite was assessed by a phytochemical fractionation guided by repellence and antifeedant activities.The gas chromatography-mass spectrometry analysis of the leaf essential oil showed geraniol to be one of the major components and its repellent and antifeedant effects were determined.Geraniol had only an antifeedant effect without affecting the body weight or survival of the dry wood termite.Unlike the leaf essential oil,geraniol did not exhibit a repellency effect.An in-silico approach of the activity of acetylcholinesterase in interaction with geraniol resulted in an affinity energy of−7.5 Kcal/mol.Geraniol interacted with the amino acid tyrosine 324 located in the enzyme’s active site while citronellol(negative control)interacted with tryptophan 83 located adjacent to the active site.These deterring terpenes have not been implemented for the preservation and restoration of wood products exposed to the attack of the dry wood termite.However,they are an important natural control alternative.

关键词： Termite geraniol repellent antifeedant deterrent

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Negative thermal diffusivity enhancement in semiconductor nanofluids

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Natural Science 2012年第12期4卷 1022-1028页

作者： Martha patricia González-Araoz josé Francisco Sánchez-Ramírez josé luis jiménez-pérez Ernesto Chigo-Anota josé luis Herrera-pérez Julio Gregorio Mendoza-álvarez Center of Applied Biotechnology Research National Polytechnic Institute (CIBA-IPN) Tlaxcala Mexico Chemical Engineering Faculty Autonomous University of Puebla (BUAP) Puebla Mexico National polytechnic Institute UpIITA-IpN Distrito Federal México National polytechnic Institute UpIITA-IpN Distrito Federal México physics Department CINVESTAV-IPN Distrito Federal Mexico

Colloidal suspensions of semiconductor Inp@ZnS nanoparticles were prepared using single-step procedure without precursor injection. Thermal properties of toluene containing Inp@ZnS semiconductor with different sizes (3.1, 4.2, and 4.6 nm) were measured by mode mismatched dualbeam thermal lens technique. This was done in order to measure the effect of the presence of semiconductor nanoparticles and size on the nanofluids thermal diffusivity. The characteristic time constant of the transient thermal lens was estimated by fitting the experimental data to the theoretical expression for transient thermal lens. The thermal diffusivity of the nanofluids (toluene, containing Inp@ZnS semiconductor nanoparticles) it seems to be strongly dependent on the presence of semiconductor nanoparticles and particles size. For the case of nanofluids consisting of Inp@ZnS nanoparticles dispersed in toluene, it was observed a decrease in the thermal diffusivity. Such behavior differs from other nanofluids, in the sense that they had shown positive thermal diffusivity enhancement. The minimum diffusivity was achieved for the nanoparticles with lowest size. plausible explanation for such nanofluids low thermal diffusivity with semiconductor nanoparticles is given. UV-Vis spectroscopy, TEM and high-resolution electron microscopy (HRTEM), and energy dispersive spectroscopy (EDS) techniques were used to characterize the Inp@ZnS nanoparticles.

关键词： Thermal Diffusivity Nanofluids Semiconductor Nanoparticles Thermal Lens

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Serum levels of chemokines in adolescents with major depression treated with fluoxetine

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World Journal of psychiatry 2020年第8期10卷 175-186页

作者： Francisco Rafael de la peña Carlos Cruz-Fuentes Lino palacios Manuel Iván Girón-pérez Emilio Medina-Rivero Maria Dolores ponce-Regalado Samantha Alvarez-Herrera Gilberto pérez-Sánchez Enrique Becerril-Villanueva joséluis Maldonado-García María C jiménez-Martínez Lenin pavón Adolescent Clinic Clinical ServicesNational Institute of Psychiatry“Ramón de la Fuente”Mexico City 14370Mexico Department of psychiatric Genetics Clinical Research BranchNational Institute of Psychiatry“Ramón de la Fuente”Mexico City 14370Mexico Universidad Autónoma de Nayarit Laboratorio de InmunotoxicologíaBoulevard Tepic-Xalisco s/nCd de la Cultura Amado NervoTepic 63000Mexico Centro Nayarita de Innovación y Transferencia de Tecnología A.C.Laboratorio Nacional para la Investigación en Inocuidad Alimentaria-Unidad Nayarit Calle Tres s/n.Cd IndustrialTepic 63000NayaritMexico Unidad de Desarrollo e Investigación en Bioprocesos Escuela Nacional de Ciencias BiológicasInstituto Politécnico NacionalUnidad Profesional Lázaro CárdenasMexico City 11340Mexico Departamento de Ciencias de Salud Centro Universitario de los AltosUniversidad de Guadalajara Av Rafael Casillas Aceves No.1200Tepatitlán de MorelosJalisco47610Mexico Laboratory of psychoimmunology National Institute of Psychiatry“Ramón de la Fuente”Mexico City 14370Mexico Department of Immunology and Research Unit Institute of Ophthalmology“Conde de Valenciana Foundation”Mexico City 06800Mexico Department of Biochemistry Faculty of MedicineNational Autonomous University of MexicoMexico City 04510Mexico

BACKGROUND Major depressive disorder(MDD)is a global health issue that affects 350 million people of all ages.Although between 2%and 5.6%of affected individuals are adolescents,research on young patients is limited.The inflammatory response contributes to the onset of depression,and in adult MDD patients,symptom severity has been linked to chemokine levels.AIM To determine the differences in circulatory levels of chemokines in healthy volunteers(HVs)and adolescents with MDD,and assess the changes induced by fluoxetine consume.METHODS The 22 adolescents with MDD were monitored during the first 8 wk of clinical follow-up and clinical psychiatric evaluation was done using the Hamilton depresión rating scale(HDRS).The serum levels of monocyte chemoattractant protein-1(MCp-1),macrophage inflammatory protein(MIp)-1α,MIp-1β,interleukin(IL)-8,interferon gamma-induced protein(Ip)-10,and eotaxin were measured in patients and HVs.RESULTS In all cases,significant differences were detected in circulating chemokine levels between patients before treatment and HVs(pp-1 and IL-8 significantly differed(ppatients,all chemokines rose to their initial concentrations by 8 wk vs 0 wk,but only Ip-10 did so significantly(ppatients experienced a significant decrease in HDRS scores at 4 wk(pppared with 0 wk.CONCLUSION Despite the consumption of fluoxetine,patients had significantly higher chemokine levels,even after considering the improvement in HDRS score.The high levels of eotaxin,Ip-10,and IL-8 partially explain certain aspects that are affected in MDD such as cognition,memory,and learning.

关键词： Adolescents Major depression Chemokine Fluoxetine Interferon gammainduced protein-10

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