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A simple Two-Phase system Involving the Commercial Organophosphorous Extractant Cyanex 471x for the Preparation of silver sulphide Nanoparticles

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Materials sciences and Applications 2012年第12期3卷 843-850页

作者： Rosa Lina Tovar-Tovar Octavio Domínguez-Espinós Adriana Gaona-Couto Azdrubal Lobo-Guerrero s.lvador palomares.s.nchez María Guadalupe sánchez-Loredo Instituto de Metalurgia San Luis PotosíMéxico Facultad de Ciencias San Luis PotosíMéxico Facultad de Ingeniería Univer-sidad Autónoma de San Luis PotosíSan Luis PotosíMéxico

The facile chemical synthesis of silver sulphide nanocrystals from metal-loaded organic media, containing a silver-selective organophosphorous ligand as extractant, is reported. The method involves the phase-transfer of silver species from aqueous nitrate media to organic solution using the commercial extractant Cyanex? 471x (tri-isobutylphosphine sulphide, Cytec Co.) as extractant, followed by precipitation stripping using ammonium sulphide as strip reagent. The nanoparticles were structurally characterized, and some aspects of the synthetical process, are briefly discussed. Under the conditions studied, the extractant Cyanex? 471x was able to act as stabilizer adsorbing on the particles surface, maintaining the size of the particles nanometrical.

关键词： silver sulphide solvent Extraction Precipitation stripping Cyanex 471x Tri-Isobutylphosphine sulphide

Challenges and perspectives on high and intermediate-temperature sodium batteries

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Nano Research 2017年第12期10卷 4082-4114页

作者： Karina B. Hueso Veronica palomares Michel Armand Teofilo Rojo Inorganic Chemistry Department University of the Basque Country UPV/EHU P.O. Box. 644 48080 Bilbao Spain CIC ENERGIGUNE Parque Tecnologico de Alava Albert Einstein 48 ED. CIC 01510 Minano Spain

Energy storage systems are selected depending on factors such as storage capacity, available power, discharge time, self-discharge, efficiency, or durability. Additional parameters to be considered are safety, cost, feasibility, and environmental aspects. sodium-based batteries （Na-s, NaNiC12） typically require operation temperatures of 300-350 ~C. The high operating temperatures substantially increase the operating costs and raise safety issues. This updated review describes the state-of-the-art materials for high-temperature sodium batteries and the trends towards the development and optimization of intermediate and low-temperature devices. Recent advances in inorganic solid electrolytes, glass-ceramic electrolytes, and polymer solid electrolytes are of immense importance in all-solid-state sodium batteries. systems such as Na~ super ionic conductor （NAsICON, Nal^xZr2PB-~sixOl2 （0 -〈 x _〈 3））, glass-ceramic 94Na3Ps4＂6Na4sis4, and polyethylene oxide （PEO）-sodium triflate （NaCF3sO3） are also discussed. Room temperature ionic liquids （RTILs） are also included as novel electrolyte solvents. This update discusses the progress of on-going strategies to enhance the conductivity, optimize the electrolyte/electrode interface, and improve the cell design of emerging technologies. This work aims to cover the recent advances in electrode and electrolyte materials for sodium- sulfur and sodium-metal-halide （zeolite battery research Africa project （ZEBRA）） batteries for use at high and intermediate temperatures.

关键词： sodium batteries high-temperature intermediate-temperature electrolytes

site Characterization Index for Continuous Power Quality Monitoring Based on Higher-order statistics

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Journal of Modern Power systems and Clean Energy 2022年第1期10卷 222-231页

作者： Olivia Florencias-Oliveros Juan-José González-de-la-Rosa Jose-María sierra-Fernández Agustín Agüera-Pérez Manuel-Jesús Espinosa-Gavira José-Carlos palomares-salas Department of Automation Engineering ElectronicsArchitecture and Computers NetworksResearch Group TIC168Higher Polytechnic SchoolUniversity of CádizAlgeciras 11202Spain

The high penetration of distributed generation(DG)has set up a challenge for energy management and consequently for the monitoring and assessment of power quality(PQ).Besides,there are new types of disturbances owing to the uncontrolled connections of non-linear *** stochastic behaviour triggers the need for new holistic indicators which also deal with big data of PQ in terms of compression and scalability so as to extract the useful information regarding different network states and the prevailing PQ disturbances for future risk assessment and energy management *** and continuous monitoring would guarantee the report to claim for damages and to assess the risk of PQ *** this context,we propose a measurement method that postulates the use of two-dimensional(2D)diagrams based on higher-order statistics(HOss)and a previous voltage quality index that assesses the voltage supply waveform in a continous monitoring *** suitable for both PQ and reliability applications,the results conclude that the inclusion of HOs measurements in the industrial metrological reports helps characterize the deviations of the voltage supply waveform,extracting the individual customers’pattern fingerprint,and compressing the data from both time and spatial *** method allows a continuous and robust performance needed in the sG ***,the method can be used by an average consumer as a probabilistic method to assess the risk of PQ deviations in site characterization.

关键词： Continuous statistical monitoring big data data compression higher-order statistics(HOss) power quality(PQ)

Ear therapy and massage therapy in the elderly with dementia: a pilot study

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Journal of Traditional Chinese Medicine 2013年第4期33卷 461-467页

作者： Juan Rodríguez-Mansilla María Victoria González-LópezArza Enrique Varela-Donoso Jesús Montanero-Fernández María Jiménez-palomares Elisa Maria Garrido-Ardila Department of Medical-surgicalTherapy Medicine Faculty Extremadura University Department of Physical Medicine and Rehabilitation Medicine Faculty University Complutense Mathematics Department Medicine Faculty Extremadura University

OBJECTIVE: To assess the impact of massage versus ear acupuncture on behavior and participation in occupational therapy of dementia patients. METHODs: We performed a controlled, randomized longitudinal trial approved by the Bioethics Commission of the University of Extremadura. One hundred twenty elderly subjects with dementia institutionalized in residential homes in Extremadura (spain) received treatment based on massage and ear acupuncture over three months. Behavior alterations, sleep disturbance, and participation in rehabilitation and eating were assessed every month during the three months of intervention, and at one and two months of follow-up after the end of treatment. The assessment was performed through a structured questionnaire with closed format ques-tions done by an occupational therapist not involved in the study. REsULTs: There was a statistically significant positive effect of massage and ear acupuncture (Psured variables in the third month of intervention, which were maintained at two months after completing the treatment (PsION: Massage therapy and ear acupuncture can improve behavior and sleep disturbances, and increase the participation in eating and rehabilitation organized in residential homes, in dementia patients.

关键词： Activities of daily living Acupuncture ear Dementia Massage Aged

Reconstruction after pancreatoduodenectomy:Pancreatojejunostomy vs pancreatogastrostomy

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World Journal of Gastrointestinal Oncology 2014年第9期6卷 369-376页

作者： Tatiana Gómez Ana palomares Mario serradilla Luis Tejedor Department of surgery Hospital Punta de Europa Division of Hepato-Pancreatic-Biliary surgery Department of SurgeryComplejo Hospitalario de Jaén

Pancreatic surgeons try to find the best technique for reconstruction after pancreatoduodenectomy(PD) in order to decrease postoperative complications,mainly pancreatic fistulas(PF).In this work,we compare the two most frequent techniques of reconstruction after PD,pancreatojejunostomy(PJ) and pancreatogastrostomy(PG),in order to determine which of the two is better.A systematic review of the literature was performed,including major meta-analysis articles,clinical randomized trials,systematic reviews,and retrospective studies.A total of 64 articles were finally *** and PG are usually responsible for most of the postoperative morbidity,mainly due to the onset of PF,being considered a major trigger of life-threatening complications such as intra-abdominal abscess and *** included systematic reviews reported a significant difference only in the incidence of intraabdominal collections favouring ***,delayed gastric emptying and mortality were not *** there was heterogeneity between these studies,all were conducted in specialized centers by highly experienced surgeons,and the surgical care was likely to be similar for all the *** disadvantages of PG include an increased incidence of delayed gastric emptying and of main pancreatic duct obstruction due to overgrowth by the gastric *** function appears to be worse after PG than after PJ,resulting in severe atrophic changes in the remnant *** on the type of PJ or PG used,the PF rate and other complications can also be *** best method to deal with the pancreatic stump after PD remains *** choice of method of pancreatic anastomosis could be based on individual experience and on the surgeon's preference and adherence to basic principles such as good exposure and *** conclusion,up to now none of the techniques can be considered superior or be recommended as standard for reconstruction after PD.

关键词： Pancreatoduodenectomy Pancreatojeju-nostomy Pancreatogastrostomy Pancreatic fistula Pancreatic cancer surgical technique

A tumor-associated heparan sulfate-related glycosaminoglycan promotes the generation of functional regulatory T cells

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Cellular & Molecular Immunology 2023年第12期20卷 1499-1512页

作者： Leticia Martín-Cruz Marcos Viñuela Ioanna Kalograiaki Alba Angelina Paola Oquist-Phillips Irene Real-Arévalo Francisco Javier Cañada JoséIgnacio Tudela Luis Moltó Jesús Moreno-sierra JoséLuis subiza Oscar palomares Department of Biochemistry and Molecular Biology School of ChemistryComplutense University of MadridMadridSpain Inmunotek Alcaláde HenaresMadridSpain Fundación Investigación Hospital Clínico san Carlos Martin Lagos s/n28040MadridSpain Centro de Investigaciones Biológicas Margarita salas CSICRamiro de Maetzu 928040MadridSpain CIBER de Enfermedades Respiratorias(CIBEREs)Avda Monforte de Lemos3-528029MadridSpain servicio de Urología Hospital Clínico San CarlosUniversidad Complutense de MadridMartín Lagos s/n28040MadridSpain

Functional Tregs play a key role in tumor development and progression,representing a major barrier to anticancer *** mechanisms by which Tregs are generated in cancer and the influence of the tumor microenvironment on these processes remain incompletely ***,by using NMR,chemoenzymatic structural assays and a plethora of in vitro and in vivo functional analyses,we demonstrate that the tumoral carbohydrate A10(Ca10),a cell-surface carbohydrate derived from Ehrlich’s tumor(ET)cells,is a heparan sulfate-related proteoglycan that enhances glycolysis and promotes the development of tolerogenic features in human ***10-stimulated human DCs generate highly suppressive Tregs by mechanisms partially dependent on metabolic reprogramming,PD-L1,IL-10,and ***10 also reprograms the differentiation of human monocytes into DCs with tolerogenic *** solid ET-bearing mice,we found positive correlations between Ca10 serum levels,tumor size and splenic Treg *** of isolated Ca10 also increases the proportion of splenic Tregs in tumor-free ***,we provide evidence supporting the presence of a circulating human Ca10 counterpart(Ca10H)and show,for the first time,that serum levels of Ca10H are increased in patients suffering from different cancer types compared to healthy *** note,these levels are higher in prostate cancer patients with bone metastases than in prostate cancer patients without ***,we reveal novel molecular mechanisms by which heparan sulfate-related structures associated with tumor cells promote the generation of functional Tregs in *** discovery of this novel structural-functional relationship may open new avenues of research with important clinical implications in cancer treatment.

关键词： Tumoral carbohydrate A10 Heparan sulfate-related proteoglycan Cancer immunology Dendritic cell Regulatory T cell

The differential genetic signatures related to climatic landscapes for jaguars and pumas on a continental scale

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Integrative Zoology 2021年第1期16卷 2-18页

作者： Marina ZANIN Noa GONZALEZ-BORRAJO Cuauhtémoc CHÁVEZ Yamel RUBIO Bart HARMsEN Claudia KELLER Pablo VILLALVA Ana Carolina sRBEK-ARAUJO Leonora Pires COsTA Francisco palomares Biology Department Federal University of MaranhãoSão LuísBrazil Departamento de Biologia de la Conservación Estación Biológica de DoñanaSevillaSpain Departamento de Ciencias Ambientales Universidad Autónoma MetropolitanaMexico CityMexico Escuela de Biologia Universidad Autónoma de SinaloaCuliacánMexico Panthera New YorkUSA Biodiversity Coordination Amazon Research InstituteManausBrazil Biology Department Vila Velha UniversityVila VelhaBrazil Biological sciences Department Federal University of Espírito SantoVitóriaBrazil

Modern and paleoclimate changes may have altered species dynamics by shifting species’niche suitability over space and *** analyze whether the current genetic structure and isolation of the two large American felids,jaguar(Panthera onca)and puma(Puma concolor),are mediated by changes in climatic suitability and connection routes over modern and paleoclimatic *** estimate species distribution under 5 climatic landscapes(modern,Holocene,last maximum glaciations[LMG],average suitability,and climatic instability)and correlate them with individuals’genetic isolation through causal modeling on a resemblance *** species exhibit genetic isolation patterns correlated with LMG climatic suitability,suggesting that these areas may have worked as“allele refuges.”However,the jaguar showed higher vulnerability to climate changes,responding to modern climatic suitability and connection routes,whereas the puma showed a continuous and gradual transition of genetic *** differential responsiveness to climate change,both species are subjected to the climatic effects on genetic configuration,which may make them susceptible to future climatic changes,since these are progressing faster and with higher intensity than changes in the ***,the effects of climatic changes should be considered in the design of conservation strategies to ensure evolutionary and demographic processes mediated by gene flow for both species.

关键词： causal modeling climatic landscape ecological niche modeling gene flow linear mixed model

基于加热截断数据的周期性还原赝热流红外热成像中加热时间对缺陷检测效率的影响

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无损检测 2023年第5期45卷 28-36页

作者： BOUH Yacoub Harred 王洪金文灿 GIRON-palomares Benjamin 吕浩源何赟泽湖南大学电气与信息工程学院长沙410082 安阳工学院工程培训中心安阳455099 北京林业大学林学院北京100083

提出了一种能够重构基于加热截断数据的周期性还原赝热流算法,并测试了该方法下加热周期对分层和插入异物可检测性的影响。对不同试件分别进行了加热周期为10,20,30 s的周期性方波热成像检测,再依据所提出的算法反演试件的还原赝热流,... 详细信息

提出了一种能够重构基于加热截断数据的周期性还原赝热流算法,并测试了该方法下加热周期对分层和插入异物可检测性的影响。对不同试件分别进行了加热周期为10,20,30 s的周期性方波热成像检测,再依据所提出的算法反演试件的还原赝热流,对比不同单波周期长度下缺陷的信噪比和最小可检出缺陷。研究表明,总加热时长相同时,单波周期越长,红外热成像技术检测埋深缺陷的能力越强。

关键词：周期方波热成像加热周期碳纤维增强聚合物还原赝热流算法