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Touristic urbanization and greening of coastal dune fields:A long-term assessment of a temperate sandy barrier of Argentina

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Journal of geographical sciences 2025年第1期35卷 206-230页

作者： gARZO Pedro Andrés DADON JoséRoberto IsLA Federico Ignacio Instituto de Investigaciones Marinas y Costeras(IIMyC-CONICET/UNMDP) Av.Juan B.Justo 2550Mar del Plata7600Buenos AiresArgentina Instituto de geología de Costas y del Cuaternario Dr.Enrique J.schnack(IgCC-CIC/UNMDP) Funes 3350Mar del Plata7600Buenos AiresArgentina Facultad de Arquitectura Diseño y UrbanismoCentro de Investigaciones Gestión de Espacios Costeros(GEC-FADU/UBA)Universidad de Buenos AiresIntendente Güiraldes 2160Pabellón ⅢPiso 4Ciudad Autónoma de Buenos Aires1428Argentina Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Buenos AiresArgentina

Dune barrier systems represent highly sought-after coastal landscapes for tourism and urban development around the ***,a century ago,they were considered hazardous environments due to their great dynamic *** a result,stabilization practices were considered *** systematic introduction of fast-growing exotic trees helped stabilize the sand,making it easier for tourism urbanization to take place,but also leading to erosion *** paper aims to assess long-term changes in vegetation cover over a large temperate barrier in *** complex region includes urban resorts,afforestation zones,and protected areas.A gIs-based geospatial analysis was conducted using a large satellite database(>350 images),and the future evolution of the vegetation was *** results revealed two primary spatiotemporal patterns associated with a gradual expansion of vegetation cover,accompanied by a concurrent reduction in sandy *** 1986,the dune area comprised 75%more surface than vegetation,whereas in 2021,it represented 60%less than ***,the 2050 scenario s.g.ests a potential 40%reduction of dunes in certain *** is necessary to enhance management actions aimed at maintaining dune mobility and ensuring local and regional sediment ***-term management strategies must focus on restoring native plant communities and controlling invasive species,and avoiding new dune fixation initiatives based on the introduction of exotic species.

关键词： nature reserves afforestation sediment balance dune management NDVI

About Nonlinear Mechanism of Energy Transformation at Ion Implantation

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Journal of Materials science & Technology 1999年第6期15卷 581-582页

作者： s.g.psakhie, K.P.Zolnikov, R.I.Kadyrov, g.E.Rudenskii, s.A.Vassiliev and Yu.P.shatheev (Institute of strength Physics and Materials science, Russian Academy of sciences, siberian Branch, Tomsk, Russia) Russian Acad sci Inst Strength Phys & Mat Sci Siberian Branch Tomsk Russia

The peculiarities of energy dissipation transferred by solitary waves on defects such as freesurface, grain boundary, region with high concentration of vacancies are studied. One of theways of description of the long ... 详细信息

关键词： About Nonlinear Mechanism of Energy Transformation at Ion Implantation

Regulator of g protein s.g.aling 6 mediates exercise-induced recovery of hippocampal neurogenesis,learning,and memory in a mouse model of Alzheimer’s disease

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Neural Regeneration Research 2025年第10期20卷 2969-2981页

作者： Mackenzie M.spicer Jianqi Yang Daniel Fu Alison N.DeVore Marisol Lauffer Nilufer s.Atasoy Deniz Atasoy Rory A.Fisher Department of Neuroscience and Pharmacology University of Iowa Carver College of MedicineIowa CityIAUSA Iowa Neuroscience Institute University of Iowa Carver College of MedicineIowa CityIAUSA Interdisciplinary graduate Program in Molecular Medicine University of Iowa Carver College of MedicineIowa CityIAUSA Neural Circuits and Behavior Core University of Iowa Carver College of MedicineIowa CityIAUSA

Hippocampal neuronal loss causes cognitive dysfunction in Alzheimer’s *** hippocampal neurogenesis is reduced in patients with Alzheimer’s *** stimulates adult hippocampal neurogenesis in rodents and improves memory and slows cognitive decline in patients with Alzheimer’s ***,the molecular pathways for exercise-induced adult hippocampal neurogenesis and improved cognition in Alzheimer’s disease are poorly ***,regulator of g protein s.g.aling 6(Rgs6)was identified as the mediator of voluntary running-induced adult hippocampal neurogenesis in ***,we generated novel Rgs6fl/fl;APP_(sWE) mice and used retroviral approaches to examine the impact of Rgs6 deletion from dentate gyrus neuronal progenitor cells on voluntary running-induced adult hippocampal neurogenesis and cognition in an amyloid-based Alzheimer’s disease mouse *** found that voluntary running in APP_(sWE) mice restored their hippocampal cognitive impairments to that of control *** cognitive rescue was abolished by Rgs6 deletion in dentate gyrus neuronal progenitor cells,which also abolished running-mediated increases in adult hippocampal *** hippocampal neurogenesis was reduced in sedentary APP_(sWE) mice versus control mice,with basal adult hippocampal neurogenesis reduced by Rgs6 deletion in dentate gyrus neural precursor ***6 was expressed in neurons within the dentate gyrus of patients with Alzheimer’s disease with s.g.ificant loss of these Rgs6-expressing ***,Rgs6 mediated voluntary running-induced rescue of impaired cognition and adult hippocampal neurogenesis in APP_(sWE) mice,identifying Rgs6 in dentate gyrus neural precursor cells as a possible therapeutic target in Alzheimer’s disease.

关键词： adult hippocampal neurogenesis Alzheimer’s disease dentate gyrus exercise learning/memory neural precursor cells regulator of g protein s.g.aling 6(Rgs6)

Overview of surface ozone variability in East Asia-North Pacific region during IgAC/APARE(1994—1996)

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Journal of Environmental sciences 2004年第4期16卷 599-609页

作者： K.s. Lam T.J.Wang T. Wang J. Tang . Y.Kajii C.M. Liu s.g. shim Environmental Engineering Unit Department of Civil and Structural Engineering The Hong Kong Polytechnic University Hong Kong Department of Atmospheric science Nanjing University Nanjing 210093 China Chinese Academy of Meteorological science Beijing 100081 China Research Center for Advanced science and Technology University of Tokyo Tokyo Japan Department of Atmospheric science "National" Taiwan University Taipei Taiwan China global Environmental Research Center Korea Institute of Science and Technology Seoul South Korea

surface ozone(O\-3) was measured at Oki Island(Japan), Cheju Island(south Korea), Lanyu Island(Taiwan Province, China), Cape D'Aguilar(Hong Kong sAR) and Lin'an, Longfenshan, Waliguan(China mainland) during January 1994—December 1996 as a component of IgAC/APARE(International global Atmospheric Chemistry/East Asia-North Pacific Regional Experiment). This paper gave a joint discussion on the observational results at these stations over the study region. Investigations showed that the average of surface O 3 mixing ratios at the seven sites are 47.9±15.8, 48.1±17.9, 30.2±16.4, 31.6±17.5, 36.3±17.5, 34.8±11.5 and 48.2±9.5 ppbv, respectively. s.g.ificant diurnal variations of surface O 3 have been observed at Oki, Cheju, D’Aguilar, Lin'an and Longfenshan. Their annual averaged diurnal differences range from 8 to 23 ppbv and differ in each season. surface O 3 at Lanyu and Waliguan do not show strong diurnal variability. seasonal cycles of surface O 3 showed difference at the temperate and the subtropical remote sites. Oki has a summer minimum-spring maximum, while Lanyu has a summer minimum-autumn maximum. The suburban sites at D'Aguilar and Lin'an report high-level O 3 in autumn and low level O 3 in summer. surface O 3 remains high in autumn and low in winter at the rural site Longfenshan. For the global background station Waliguan, surface O 3 exhibits a broad spring-summer maximum and autumn-winter minimum. The backward air trajectories to these sites have shown different pathways of long-range transport of air pollution from East Asia Continent to North Pacific Ocean. surface O 3 was found to be strongly and positively correlated with CO at Oki and Lanyu, especially in spring and autumn, reflecting the substantial photochemical buildup of O\-3 on a regional scale. It is believed that the regional sources of pollution in East Asia have enhanced the average surface O 3 concentrations in the background atmosphere of North Pacific.

关键词： surface ozone trajectory transport photochemistry

green synthesis of glycolic acid through the electrocatalytic reduction of oxalic acid over black TiO_(2): An experimental and theoretical study

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Journal of Energy Chemistry 2025年第1期100卷 544-556页

作者： Hugo Olvera-Vargas Oscar Andrés Jaramillo-Quintero Luis Darío Alarcón León Orlando Castro-Ocampo Christian A.Celaya Marina E.Rincón Jesús Muñiz Instituto de Energías Renovables Universidad Nacional Autónoma de México(IER-UNAM)Priv.Xochicalco s/nCol.CentroTemixcoMorelos.CP 62580Mexico Centro de Nanociencias y Nanotecnología Universidad Nacional Autónoma de México(UNAM)Km 107Carretera Tijuana-EnsenadaEnsenadaB.C.C.P.22800Mexico

Herein,we present the electrocatalytic four-electron hydrogenation of oxalic acid into glycolic acid using black TiO_(2)as an *** acid is an abundant compound found in several sources of organic *** results showed a high selectivity of black TiO_(2)toward glycolic acid,with the formation of glyoxylic acid being the rate-limiting step (glyoxylic acid is the two-electron intermediate).The highest Faradaic efficiency (FE) of 69.6%±8.3% was achieved at 10.2 mA cm^(-2)in 4 h of electrolysis using an H-type cell operated at room temperature,with 50.2%±3.8% of oxalic acid conversion (degradation kinetic constant k=0.0042±0.0001 min-1),58.8%±7.0%of reaction yield and 1.2±0.18 g L-1of glycolic acid production.A theoretical model of black TiO_(2)coming from anatase TiO_(2)was implemented by introducing Ti3+defects,which gave black TiO_(2)the theoretical capability to easily transform oxalic acid into glycolic acid as experimentally *** reaction mechanism was supported and described in detail by density functional theory calculations,which revealed that surface Ti^(3+)states were the main catalytic *** is the first time that a detailed step-by-step mechanism at the atomic level has been proposed for this electrocatalytic reaction,which represents a valuable contribution to the understanding of this process of high energy/environmental *** is also the first time that black TiO_(2)has been used as an electrocatalyst for this sustainable process.

关键词： Chemical energy storage Electrochemical hydrogenation Density functional theory Renewable energy Oxalic acid

Atomically precise M-N-C electrocatalysts for oxygen reduction:Effects of inter-site distance,metal-metal interaction,coordination environment,and spin states

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Journal of Energy Chemistry 2025年第2期101卷 132-155页

作者： Junfeng Huang saira Ajmal Anuj Kumar Jianwen guo Mohammed Mujahid Alam Abdullah g.Al-sehemi ghulam Yasin school of Mechanical Engineering Dongguan University of Technology Nano-Technology Research Laboratory Department of Chemistry GLA University Department of Chemistry College of Science King Khalid University school of Environmental science and Engineering Tianjin University state Key Laboratory of Chemical Resource Engineering College of Materials Science and Engineering Beijing University of Chemical Technology

Inspired by molecular catalysts,researchers developed atomically precise nitrogen-coordinated single or dual metal sites imbedded in graphitized carbon（M-N-C） to fully utilize metallic sites for *** catalysts performed remarkably well in the electrocatalytic oxygen reduction reaction（ORR） due to their distinct coordination and electrical structures,Nonetheless,their maximum efficacy in practical applications has yet to be *** agenda identifies tailoring the coordination environment,spin states,intersite distance,and metal-metal interaction as innovative approaches to regulate the ORR performance of these ***,it is necessary to undertake a precise assessment of these methodologies and the knowledge obtained to be implemented in the des.g. of future M-N-C catalysts for ***,this review aims to analyze recent progress in M-N-C ORR catalysts,emphasizing their innovative engineering with aspects such as alteration in intersite distance,metal-metal interaction,coordination environment,and spin ***,we critically discuss how to logically monitor the atomic structure,local coordination,spin,and electronic states of M-N-C catalysts to modulate their ORR *** have also highlighted the challenges associated with M-N-C catalysts and proposed s.g.estions for their future des.g. and fabrication.

关键词： Activity descriptors Electrocatalysis M-N-C electrocatalysts ORR spin states

A greener Future: Carbon Nanomaterials from Lignocellulose

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Journal of Renewable Materials 2025年第1期13卷 21-47页

作者： Hebat-Allah s.Tohamy Mohamed El-sakhawy samir Kamel Cellulose and Paper Department National Research CentreDokkiGiza12622Egypt

Lignocellulosic materials(LCMs),abundant biomass residues,pose s.g.iﬁcant environmental challenges when improperly disposed ***,such as s.g.rcane bagasse,rice straw,saw dust and agricultural residues,are abun-dant but often burned,contributing to air pollution and greenhouse gas *** review explores the potential of transforming these materials into high-value carbon nanomaterials(CNMs).We explore the potential of transforming these materials into high-value *** employing techniques like carbonization and activa-tion,LCMs can be converted into various CNMs,including carbon nanotubes(CNTs),graphene(g),graphene oxide(gO),carbon quantum dots(CQDs),nanodiamonds(NDs),fullerenes(F),carbon nanoﬁbers(CNFs),and *** different carbon allotropes further enhances their *** derived from cellulose,lignin,and hemicellulose exhibit promising applications in diverseﬁ*** instance,CNTs can be used in energy storage devices like batteries and supercapacitors due to their exceptional electrical conductivity and mechanical ***,CNTs can be incorporated into recycled paper as aﬁre retardant additive,enhancing itsﬂame resistance.g,renowned for its high surface area and excellent electrical conductivity,ﬁnds applications in electronics,sensors,catalysis,and water treatment,where it can be used to adsorb heavy metal ***,owing to their unique optical properties,are used in bioimaging,drug delivery,and optoelectronic *** harnessing the potential of LCMs,we can not only mitigate environmental concerns but also contri-bute to a sustainable *** research is essential to optimize synthesis methods,explore novel applica-tions,and unlock the full potential of these versatile materials.

关键词： Lignocellulosic materials carbon-based nanomaterials carbon allotropes

About the Features of Transient to steady state Deformation of solids

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Journal of Materials science & Technology 1997年第1期13卷 69-72页

作者： s. g.psakhie A. YU.smolin E. V.shilko s.Yu.Korostelev, A.I.Dmitriev and s. V.Alekseev (Institute of strength Physics and Materials science of the Russian Academy of sciences,siberian Branch 634055, Tomsk, Russia) Institute of strength Physics and Materials science Russian Academy of Sciences Siberian Branch 634055 Tomsk Russian Federation

The features of transient to steady state deformation of solids are theoretically *** of various types of loading was carried out by the Movable Cellular Automata method.A stress state of material at the stage of transient to a steady state is shown to be essentially non-uniform, that may in its turn result in stable structures in velocity field of particles of the material. It may also influence development of deformation at the further stages.

关键词： About the Features of Transient to steady state Deformation of solids

Bacteria and host: what does this mean for sepsis bottleneck?

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World Journal of Emergency Medicine 2025年第1期16卷 10-17页

作者： Azzah s Alharbi Raghad Hassan sanyi Esam I Azhar Department of Clinical Microbiology and Immunology Faculty of MedicineKing Abdulaziz UniversityJeddah 21362Saudi Arabia special Infectious Agent Unit King Fahad Medical Research CenterKing Abdulaziz UniversityJeddah 21362Saudi Arabia College of Health and Medical Technology Middle Technical UniversityBaghdad 10047Iraq Department of Medical Laboratory sciences Faculty of Applied Medical SciencesKing Abdulaziz UniversityJeddah 21362Saudi Arabia

BACKgROUND: sepsis is a life-threatening inflammatory condition in which the invading pathogen avoids the host's defense mechanisms and continuously stimulates and damages host cells. Consequently, many immune responses initially triggered for protection become harmful because of the failure to restore homeostasis, resulting in ongoing hyperinflammation and immunosuppression. METHODs: A literature review was conducted to address bacterial sepsis, describe advances in understanding complex immunological reactions, critically assess diagnostic approaches, and emphasize the importance of studying bacterial bottlenecks in the detection and treatment of ***: Diagnosing sepsis via a single laboratory test is not feasible;therefore, multiple key biomarkers are typically monitored, with a focus on trends rather than absolute values. The immediate interpretation of sepsis-associated clinical s.g.s and symptoms, along with the use of specific and sensitive laboratory tests, is crucial for the survival of patients in the early stages. However, long-term mortality associated with sepsis is now recognized, and alongside the progression of this condition, there is an in vivo selection of adapted ***: Bacterial sepsis remains a s.g.ificant cause of mortality across all ages and societies. While substantial progress has been made in understanding the immunological mechanisms underlying the inflammatory response, there is.g.owing recognition that the ongoing host-pathogen interactions, including the emergence of adapted virulent strains, shape both the acute and long-term outcomes in sepsis. This underscores the urgent need for novel high-throughput diagnostic methods and a shift toward more pre-emptive, rather than reactive, treatment strategies in sepsis care.

关键词： sepsis Bacteria Bottleneck Inflammation