检索结果-南通市图书馆

Assessing Post-Storm Forest Dynamics in the Pyrenees Using High-resolution LIDAr Data and Aerial Photographs

在线全文

学校读者我要写书评

暂无评论

Journal of Mountain Science 2015年第4期12卷 841-853页

作者： ángela BLáZQUEZ-CASADO josé r.gonzález-olabarria Santiago MArTíN-ALCóN Ariadna JUST Mariló CABré Lluís COLL Forest Sciences Center of Catalonia (CTFC) Institut Cartogràfic i Geològic de Catalunya (ICGC)

We evaluated how historical storm events have shaped the current forest landscape in three Pyrenean subalpine forests(NE Spain).For this purpose we related forest damage estimations obtained from multi-temporal aerial photographic comparisons to the current forest typology generated from airborne Li DAr data, and we examined the role of past natural disturbance on the current spatial distribution of forest structural *** found six forest structural types in the landscape: early regeneration(T1 and T2), young even-aged stands(T3), uneven-aged stands(T4) and adult stands(T5and T6).All of the types were related to the timing and severity of past storms, with early-regeneration structures being found in areas markedly affected in recent times, and adult stands predominating in those areas that had suffered lowest damage levels within the study *** general, landscapes where high or medium levels of damage were recurrent also presented higher levels of spatial heterogeneity,whereas the opposite pattern was found in the less markedly affected landscape, characterized by thepresence of large regular *** results show the critical role that storm regimes in terms of timing and severity of past storms can play in shaping current forest structure and future dynamics in subalpine *** knowledge gained could be used to help define alternative forest management strategies oriented toward the enhancement of landscape heterogeneity as a measure to face future environmental uncertainty.

关键词： Storm regime Forest succession Forest structure Airborne Li DAr Spatial patterns Pyrenean Subalpine forests

Enhancement of the CO_(2)adsorption and hydrogenation to CH_(4)capacity of ru–Na–Ca/γ–Al_(2)O_(3)dual function material by controlling the ru calcination atmosphere

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第6期140卷 292-305页

作者： Alejandro Bermejo-López Beñat Pereda-Ayo Jon A.Onrubia-Calvo joséA.gonzález-Marcos Juan r.gonzález-Velasco Department of Chemical Engineering Faculty of Science and TechnologyUniversidad del País Vasco UPV/EHUBarrio Sarrienas/n48940 LeioaBizkaiaSpain

Integrated CO_(2)capture and utilization(ICCU)technology requires dual functional materials(DFMs)to carry out the process in a single reaction *** influence of the calcination atmosphere on efficiency of 4%ru-8%Na_(2)CO_(3)-8%CaO/γ-Al_(2)O_(3)DFM is *** adsorbent precursors are first co-impregnated onto alumina and calcined in ***,ru precursor is impregnated and four aliquotes are subjected to different calcination protocols:static air in muffle or under different mixtures(10%H_(2)/N_(2),50%H_(2)/N_(2)and N_(2))*** are characterized by XrD,N_(2)adsorption-desorption,H_(2)chemisorption,TEM,XPS,H_(2)-TPD,H_(2)-TPr,CO_(2)-TPD and *** catalytic behavior is evaluated,in cycles of CO_(2)adsorption and hydrogenation to CH_(4),and temporal evolution of reactants and products concentrations is *** calcination atmosphere influences the physicochemical properties and,ultimately,activity of *** data and catalytic performance discover the acccomodation of ru nanoparticles disposition and basic sites is mostly influencing the catalytic *** calcined under N_(2)flow(ruNaCa-N_(2))shows the highest CH_(4)production(449μmol/g at 370℃),because a well-controlled decomposition of precursors which favors the better accomodation of adsorbent and ru phases,maximizing the specific surface area,the ru-basic sites interface and the participation of different basic sites in the CO_(2)methanation ***,the calcination in a N_(2)flow is revealed as the optimal calcination protocol to achieve highly efficient DFM for integrated CO_(2)adsorption and hydrogenation applications.

关键词： CO_(2)methanation Integrated CO_(2)capture and utilization(ICCU) Dual functional material(DFM) ru calcination atmosphere

Tracking the change in Spanish greenhouse gas emissions through an LMDI decomposition model:A global and sectoral approach

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第5期139卷 114-122页

作者： Paula Fernández gonzález María josé Presno Manuel Landajo Department of Applied Economics University of OviedoAuda del Cristos/n 33011 OviedoSpain

The reduction of GHG emissions to reverse the greenhouse effect is one of the main challenges in this *** this paper we pursue two ***,we analyze the evolution of GHG emissions in Spain in 2008–2018,at both the global and sectoral levels,with the variation in emissions decomposed into a set of determining ***,we propose several actions specifically oriented to more tightly controlling the level of *** results showed a remarkable reduction(18.44%)in GHG emissions,mainly due to the intensity effect,but also to the production-per-capita *** detected somewhat different patterns among the various sectors *** the intensity effect was the most influential one in the agricultural,transport,and others sectors,the production-per-capita effect was predominant in the case of *** carbonization effect was revealed as crucial in the commerce *** above findings highlight the importance of the energy efficiency measures taken in recent years in the Spanish economy,also pointing to the need to deepen those strategies and to propose new measures that entail greater efficiency in *** efforts in areas like innovation,r&D,diffusion of more eco-friendly technologies,and a greater use of greener energies all prove to be essential reduction actions to fight the greenhouse effect.

关键词： LMDI Decomposition Spain GHG emissions

Estimation of Equivalent Model of Photovoltaic Array Using Unscented Kalman Filters

在线全文

学校读者我要写书评

暂无评论

Journal of Modern Power Systems and Clean Energy 2024年第3期12卷 819-827页

作者： M.A.gonzález-Cagigal joséA.rosendo-Macías A.Gómez-Expósito the Department of Electrical Engineering University of SevilleSpainand A.Gómez-Expósito is also with ENGREEN Laboratory of Engineering for Energy and Environmental SustainabilitySevilleSpain

This paper proposes the use of the unscented Kalman filter to estimate the equivalent model of a photovoltaic(PV)array,using external measurements of current and voltage at the inverter *** estimated model is of interest to predict the power output of PV plants,in both planning and operation scenarios,and thus improves the efficient operation of power systems with high penetration of renewable *** proposed technique has been assessed in several simulated scenarios under different operating *** results show that accurate estimates are provided for the model parameters,even in the presence of measurement noise and abrupt variations under the external conditions.

关键词： Equivalent model parameter estimation photovoltaic energy unscented Kalman filter

Glucagon-like peptide 1 receptor activation:anti-inflammatory effects in the brain

在线全文

学校读者我要写书评

暂无评论

Neural regeneration research 2024年第8期19卷 1671-1677页

作者： Yolanda Diz-Chaves Zainab Maastor Carlos Spuch josé Antonio Lamas Lucas C.gonzález-Matías Federico Mallo Biomedical research Centre(CINBIO) Laboratory of EndocrinologyUniversity of VigoGalicia Sur Health Research InstituteVigoSpain Translational Neuroscience research Group Galicia Sur Health Research InstituteCIBERSAMHospitalÁlvaro CunqueiroSala InvestigaciónEstrada Clara CampoamorVigoSpain Biomedical research Centre(CINBIO) Laboratory of NeuroscienceUniversity of VigoGalicia Sur Health Research InstituteVigoSpain

The glucagon-like peptide 1 is a pleiotropic hormone that has potent insulinotropic effects and is key in treating metabolic diseases such as diabetes and ***-like peptide 1 exerts its effects by activating a membrane receptor identified in many tissues,including diffe rent brain ***-like peptide 1 activates several signaling pathways related to neuroprotection,like the support of cell growth/survival,enhancement promotion of synapse formation,autophagy,and inhibition of the secretion of proinflammatory cytokines,microglial activation,and apoptosis during neural *** glial cells,including astrocytes and microglia,maintain metabolic homeostasis and defe nse against pathogens in the central nervous *** brain insult,microglia are the first cells to respond,followed by reactive *** activated cells produce proinflammato ry mediators like cytokines or chemokines to react to the ***,under these circumstances,mic roglia can become chro nically inflammatory by losing their homeostatic molecular signature and,consequently,their functions during many *** processes promote the development of neurological disorders and influence their pathological evolution:like the formation of protein aggregates,the accumulation of abnormally modified cellular constituents,the formation and release by injured neurons or synapses of molecules that can dampen neural function,and,of critical impo rtance,the dysregulation of inflammato ry control *** glucagonlike peptide 1 receptor agonist emerges as a critical tool in treating brain-related inflammatory pathologies,restoring brain cell homeostasis under inflammatory conditions,modulating mic roglia activity,and decreasing the inflammato ry *** review summarizes recent advances linked to the anti-inflammato ry prope rties of glucagon-like peptide 1 receptor activation in the brain related to multiple sclerosis,Alzheimer’s disease,Parkins

关键词： astrocytes brain glucagon-like peptide 1 receptor inflammation microglia

Chi-square automatic interaction detection(CHAID)analysis of the use of safety goggles and face masks as personal protective equipment(PPE)to protect against occupational biohazards

在线全文

学校读者我要写书评

暂无评论

Journal of Biosafety and Biosecurity

Journal of Biosafety and Biosecurity 2024年第2期6卷 125-133页

作者： raúl Aguilar-Elena Juán joséAgún-gonzález Universidad Internacional de Valencia ValenciaSpain

Background:This study represents the first Spanish investigation to rigorously evaluate compliance with the use of safety goggles and face masks as essential personal protective equipment(PPE)in companies with workplaces involving exposure to biological ***:This study aimed to examine the degree of use of face masks and safety goggles as personal protective equipment(PPE),the factors that influence their use,and the profile of workers exposed to occupational biological agents in Spanish companies in the health sector,farming sector,meat industry,waste treatment plants,food industry,and veterinary ***:We conducted a cross-sectional descriptive study involving 590 Spanish workers from 51 *** developed a 34-item questionnaire to assess workers’perception of risk related to exposure to biological agents in their *** the questions,three were designed to measure the degree of use of key protective equipment in sectors with biological agent exposure:protective gloves,safety goggles or face *** only analyzed safety goggles and face *** performed various statistical analyses,including Cronbach’s alpha,frequency of endorsement,content validity ratio using Lawshe’s method,varimax rotation,the Kaiser-Meyer-Olkin test,and Bartlett’s sphericity test,to assess the internal consistency and reliability of the ***,we employed a chi-square automatic interaction detection(CHAID)segmentation analysis,using workers’responses regarding their attitudes toward safety goggles and face mask usage as PPE for protection against biological risks,with demographic variables as independent ***:In the current study,CHAID analysis revealed that workers exposed to group 2 biological agents used more safety goggles and face shields compared with workers exposed to other groups of biological ***,workers in laboratories and the food industry used face masks more than workers of other ***

关键词： PPE Safety googles and breath mask CHAID Biological Agents Occupational Biosafety

Lifestyles of Older Adults in Castilla-La Mancha(Spain):Influence of Sex,Age,and Habitat

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fudan Journal of the Humanities and Social Sciences 2024年第2期17卷 313-335页

作者： Esther Portal Martínez Juan Lirio Castro David Alonso gonzález joséLuis Gómez ramos University of Castilla-La Mancha Talavera de la ReinaSpain Complutense University MadridSpain

This paper presents the quantitative research results of a comprehensive study titled“Current Profle of Older Adults in Castilla-La Mancha(Spain).”The study aims to understand and describe the characteristics of individuals aged 65 and above within this autonomous region,with a focus on the variables of sex,age,and habitat.A cross-sectional approach was employed,utilizing quantitative methods to collect *** gather information,a customized questionnaire was developed to address the study objectives,covering various aspects such as sociodemographic factors,living conditions,leisure activities,social participation,and cultural *** survey was conducted via telephone,ensuring representation by employing gender quotas,age-group stratifcation,and considerations for habitat size.A representative sample of 1,065 participants was included in the *** fndings reveal a degree of homogeneity in the lifestyles of older adults,with discernible variations infuenced by factors such as sex,habitat,and *** results shed light on the diverse habits and experiences of older adults,emphasizing the signifcance of habitat conditions,social participation,and the aging process.

关键词： Lifestyle habits Older adults Habitat conditions Social participation Aging experience

Differential Expression of Genes related to Fruit Development and Capsaicinoids Synthesis in Habanero Pepper Plants Grown in Contrasting Soil Types

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Phyton-International Journal of Experimental Botany 2024年第2期93卷 151-183页

作者： Eduardo Burgos-Valencia Federico García-Laynes Ileana Echevarría-Machado Fatima Medina-Lara Miriam Monforte-gonzález joséNarváez-Zapata Manuel Martínez-Estévez Unidad de Bioquímica y Biología Molecular de Plantas Centro de Investigación Científica de YucatánCalle 43#130Chuburnáde HidalgoMéridaYucatán97205México Instituto Politécnico Nacional-Centro de Biotecnología Genómica Blvd Del Maestro esq.Elias PiñaReynosaTamaulipas88710México

Habanero pepper(Capsicum chinense Jacq.)is a crop of economic relevance in the Peninsula of *** fruits have a high level of capsaicinoids compared to peppers grown in other regions of the world,which gives them industrial *** is an important factor that affects pepper development,nutritional quality,and capsaicinoid ***,the effect of soil type on fruit development and capsaicinoid metabolism has been little *** work aimed to compare the effect of soils with contrasting characteristics,black soil(BS)and red soil(rS),on the expression of genes related to the development of fruits,and capsaicinoid synthesis using a transcriptomic analysis of the habanero pepper *** growing in rS had bigger fruits and higher expression of genes related to floral development,fruit abscission,and softening which suggests that rS stimulates fruit development from early stages until maturation *** from plants growing in BS had enrichment in metabolic pathways related to growth,sugars,and ***,these fruits had higher capsaicinoid accumulation at 25 days post-anthesis,and higher expression of genes related to the branched-chain amino acids metabolism(ketol-acid reductisomerase KArI),pentose phosphate pathway and production of NADPH(glucose-6-phosphate-1-dehydrogenase G6PDH),and proteasome and vesicular traffic in cells(26S proteasome regulatory subunit T4 rPT4),which suggest that BS is better in the early stimulation of pathways related to the nutritional quality and capsaicinoid metabolism in the fruits.

关键词： Capsicum chinense jacq soil types plant growth environmental conditions fruit quality capsaicinoid metabolism transcriptome

From liver to hormones:The endocrine consequences of cirrhosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2024年第9期30卷 1073-1095页

作者： Juan Eduardo Quiroz-Aldave Elman rolando Gamarra-Osorio María del Carmen Durand-Vásquez Luciana del Pilar rafael-robles Jhean Gabriel gonzáles-Yovera María Alejandra Quispe-Flores Luis Alberto Concepción-Urteaga Alejandro román-gonzález josé Paz-Ibarra Marcio josé Concepción-Zavaleta Non-communicable Diseases Endocrinology Research LineHospital de Apoyo ChepénChepén 13871Peru Department of Endocrinology Hospital Víctor Lazarte EchegarayTrujillo 13006Peru Department of Endocrinology Clínica Javier PradoLima 15046Peru Department of Gastroenterology Hospital Nacional Guillermo Almenara IrigoyénLima 15018Peru Department of Endocrinology Hospital de Emergencias GrauLima 15001Peru Internal Medicine Hospital Regional Docente de TrujilloTrujillo 13011Peru Department of Endocrinology Hospital Universitario de San Vicente FundaciónMedellin 050010Colombia Internal Medicine Universidad de AntioquiaMedellín 050010Colombia School of Medicine Universidad Nacional Mayor de San MarcosLima 15081Peru Department of Endocrinology Hospital Nacional Edgardo Rebagliati MartinsLima 15072Peru Carrera de Medicina Humana Universidad Científica del SurLima 15067Peru

Hepatocrinology explores the intricate relationship between liver function and the endocrine *** liver diseases such as liver cirrhosis can cause endocrine disorders due to toxin accumulation and protein synthesis *** its importance,assessing endocrine issues in cirrhotic patients is frequently *** article provides a comprehensive review of the epidemiology,pathophysiology,diagnosis,and treatment of endocrine disturbances in liver *** review was conducted using the PubMed/Medline,EMBASE,and Scielo databases,encompassing 172 *** cirrhosis is associated with endocrine disturbances,including diabetes,hypoglycemia,sarcopenia,thyroid dysfunction,hypogonadotropic hypogonadism,bone disease,adrenal insufficiency,growth hormone dysfunction,and secondary *** optimal tools for diagnosing diabetes and detecting hypoglycemia are the oral glucose tolerance test and continuous glucose monitoring system,*** can be assessed through imaging and functional tests,while other endocrine disorders are evaluated using hormonal assays and imaging *** options include metformin,glucagon-like peptide-1 analogs,sodium-glucose co-transporter-2 inhibitors,and insulin,which are effective and safe for diabetes *** standards are followed for managing hypoglycemia,and hormone replacement therapy is often necessary for other endocrine *** transplantation can address some of these problems.

关键词： Diabetes mellitus Hypoglycemia Thyroid diseases Hypogonadism Metabolic bone diseases Liver cirrhosis