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A Note on Extreme Points in Dual Spaces

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Acta Mathematica Sinica,English Series 2013年第3期29卷 471-476页

作者： Juan Francisco MENA-JURADO Juan carlos NAVARRO-pascual Departamento de Análisis Matemático Facultad de Ciencias Universidad de Granada Departamento de lgebra y Análisis Matemático Universidad de Almería

Given a normed space X it can be easily proven that every extreme point in Bx＊, the unit ball of X＊, is the restriction of an extreme point in Bx Our purpose is to study when the restrictions of extreme points in B... 详细信息

关键词： Extreme point Ll-predual M-ideal

Generating oligodendroglia from adult mesenchymal cells for transplantation:cell reprogramming or direct lineage conversion?

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Neural Regeneration Research 2023年第7期18卷 1493-1494页

作者： Jorge pascual-Guerra JoséA.Rodríguez-Navarro carlos L.Paíno Service of Neurobiology-Research Ramón y Cajal University Hospital-IRYCISMadridSpain Department of Cellular Biology Complutense UniversityMadridSpain

Cell replacement therapy has long been proposed as a treatment for the damaged nervous *** of the most challenging aspects of such a strategy,however,is finding sources of donor cells for *** neural cells are rarely an option as every cell in the nervous system has a defined function that would be lost if that cell was to be *** possibility would be sourcing precursor or differentiated cells from fetal tissues;however,aside from ethical issues,heterologous cells are at risk of immunological rejection in the long *** improvements over the past 15 years have led to the possibility that autologous non-neural cells could be used for cell transplantation through their conversion into neural derivatives.

关键词： neural programming removed

TML:a language to specify aerial robotic missions for the framework Aerostack

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International Journal of Intelligent Computing and Cybernetics 2017年第4期10卷 491-512页

作者： Martin Molina Ramon A.Suarez-Fernandez carlos Sampedro Jose Luis Sanchez-Lopez pascual Campoy Department of Artificial Intelligence Technical University of Madrid(UPM)MadridSpain Centre for Automation and Robotics Technical University of MadridMadridSpain

Purpose–The purpose of this paper is to describe the specification language TML for adaptive mission plans that the authors designed and implemented for the open-source framework Aerostack for aerial ***/methodology/approach–The TML language combines a task-based hierarchical approach together with a more flexible representation,rule-based reactive planning,to facilitate *** approach includes additional notions that abstract programming *** authors built an interpreter integrated in the software framework *** interpreter was validated with flight experiments for multi-robot missions in dynamic ***–The experiments proved that the TML language is easy to use and expressive enough to formulate adaptive missions in dynamic *** experiments also showed that the TML interpreter is efficient to execute multi-robot aerial missions and reusable for different *** TML interpreter is able to verify the mission plan before its execution,which increases robustness and safety,avoiding the execution of certain plans that are not ***/value–One of the main contributions of this work is the availability of a reliable solution to specify aerial mission plans,integrated in an active open-source project with periodic *** the best knowledge of the authors,there are not solutions similar to this in other active open-source *** additional contributions,TML uses an original combination of representations for adaptive mission plans(*** trees with original abstract notions and rule-based reactive planning)together with the demonstration of its adequacy for aerial robotics.

关键词： Adaptive mission plans Aerial robotic systems Autonomous aerial systems Mission plan specification

Diagnostic performance of serum interleukin-6 in pediatric acute appendicitis:a systematic review

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World Journal of Pediatrics 2022年第2期18卷 91-99页

作者： Javier Arredondo Montero carlos Bardaji pascual Monica Bronte Anaut Natalia Lopez-Andres Giuseppa Antona Nerea Martin-Calvo Pediatric Surgery Department Complejo Hospitalario de NavarraCalle Irunlarrea 331008 PamplonaNavarraSpain Pathology Department Complejo Hospitalario de NavarraPamplonaSpain Cardiovascular Translational Research Navarrabiomed(Miguel Servet Foundation)Complejo Hospitalario de Navarra(CHN)Universidad Publica de Navarra(UPNA)IdiSNAPamplonaSpain Department of Preventive Medicine and Public Health Instituto de Investigacion Sanitaria de Navarra(IdiSNA).University of Navarra.PamplonaSpain CIBER Fisiopatologia de la Obesidad y Nutricion(CIBERobn) Health Institute CarlosⅢMadridSpain

Background Despite the radiological and analytical advances of the last decades,there is still a significant rate of diagnostic error in pediatric acute *** recent years,multiple biomarkers have emerged as potential diagnostic *** study aimed to examine the diagnostic performance of serum interleukin-6 in pediatric acute *** We conducted a systematic review of the literature that involved an extensive search in the main databases of medical bibliography(Medline,PubMed,Web of Science and SciELO).Two independent reviewers selected the relevant articles based on the previously defined inclusion and exclusion *** quality of the selected article was rated using the QUADAS2 *** extraction was performed by two independent *** The research in the medical bibliography databases resulted in 68 *** removed 26 *** the remaining 42 articles,we excluded 33 following the inclusion and exclusion *** the final 9 studies included in this review,8 provided measured serum interleukin-6 values,and all of them reported significant differences between groups,but inconsistent results regarding sensitivity and *** The diagnostic performance of interleukine-6 alone for the diagnosis of acute appendicitis in children is *** sensitivity and specificity of interleukine-6 for the diagnosis of non-complicated acute appendicitis in the pediatric population are moderate but increased in complicated *** seems to be a direct relationship between serum level of interleukin-6 and the hours of evolution of abdominal pain in children with acute *** increasingly widespread use of non-operative management of acute appendicitis warrants further exploration of the classificatory potential of this marker between complicated and uncomplicated *** consider that this may be an avenue of research to explore in the future.

关键词： Acute appendicitis Children Interleukin-6 Pediatric Sensitivity Specificity Systematic review

Logistic Model for Customer Dynamics in the Mobile Telecommunication Sector

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Journal of Mathematics and System Science 2014年第10期4卷 689-694页

作者： Juan carlos pascual Medina Centro Universitario Incarnate Word Mexico DF Mexico

Starting from the last decade of the 90＇s mobile phone makes its appearance in the world markets, in Mexico it＇s also on that date that the first companies are formed, today there are only four mobile companies that compete strongly for the Mexican market, In this article we use the logistic model （S - shaped logistic curve）, which describes competitive environments, especially for the popularization of new technologies, to describe the dynamics of the telecommunications sector in Mexico and the probability of the companies to fail and disappear in the market. In economic articles, we see more attention to the dynamics of monopolistic competition and power companies, but it is less used the study of the sales dynamics of the sector and the curves that represent it. The proposed model uses as data the total number of subscribers to mobile phone lines to generate the logistic curves of each company and the total market, in search of main points singularities and stability conditions as predictors of the extinction of technologies and the shot-down of companies in the sector.

关键词： Complexity logistics telecommunications stochastic dynamics economy

Exosomes as mediators of neuron-glia communication in neuroinflammation

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Neural Regeneration Research 2020年第5期15卷 796-801页

作者： María pascual Francesc Ibánez Consuelo Guerri Department of Molecular and Cellular Pathology of Alcohol Príncipe Felipe Research CenterValenciaSpain Department of Physiology School of Medicine and DentistryUniversity of ValenciaValenciaSpain

In recent years,a type of extracellular vesicles named exosomes has emerged that play an important role in intercellular communication under physiological and pathological *** nanovesicles (30–150 nm) contain proteins,RNAs and lipids,and their internalization by bystander cells could alter their normal *** review focuses on recent knowledge about exosomes as messengers of neuron-glia communication and their participation in the physiological and pathological functions in the central nervous *** emphasis is placed on the role of exosomes under toxic or pathological stimuli within the brain,in which the glial exosomes containing inflammatory molecules are able to communicate with neurons and contribute to the pathogenesis of neuroinflammation and neurodegenerative *** the small size and characteristics of exosomes,they can cross the blood-brain barrier and be used as biomarkers and diagnosis for brain disorders and ***,although the application potential of exosome is still limited,current studies indicate that exosomes represent a promising strategy to gain pathogenic information to identify therapeutically targets and biomarkers for neurological disorders and neuroinflammation.

关键词： biomarkers exosomes glial cells neuroinflammation neuron-glia commuication neurons neuropathology therapy

Asymmetric dimethylarginine as a mediator of vascular dysfunction in cirrhosis

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World Journal of Gastroenterology 2015年第32期21卷 9466-9475页

作者： Paloma Lluch Gloria Segarra pascual Medina Department of Gastroenterology and Hepatology and Institute of Health Research INCLIVA Hospital Clínico Universitario Valencia Department of Physiology University of Valencia and Institute of Health Research INCLIVA Hospital Clínico Universitario Valencia

Cirrhosis is associated with marked abnormalities in the circulatory function that involve a reduction in systemic vascular resistance. An important cause of this vasodilatation is the increased production or activity of nitric oxide(NO) in the splanchnic circulation. During portal hypertension and cirrhosis an increased endothelial NO synthase(e NOS) activity is demonstrated in splanchnic vessels. In contrast, the activity of e NOS in the cirrhotic liver is decreased, which suggests a different regulation of e NOS in the liver and in the splanchnic vessels. Asymmetric dimethylarginine(ADMA) is an endogenous NO inhibitor and higher plasma levels of ADMA are related to increased cardiovascular risk in both the general population and among patients with cirrhosis. It has been demonstrated that the liver is a key player in the metabolism of ADMA. This observation was further supported by investigations in human patients, showing a close correlation between ADMA plasma levels and the degree of hepatic dysfunction. ADMA is degraded to citrulline and dimethylamine by dimethylarginine dimethylaminohydrolases(DDAHs). DDAHs are expressed as type 1 and 2 isoforms and are widely distributed in various organs and tissues, including the liver. In this review, we discuss experimental and clinical data that document the effects of dimethylarginines on vascular function in cirrhosis. Our increasing understanding of the routes of synthesis and metabolism of methylarginines is beginning to provide insights into novel mechanisms of liver disease and allowing us to identify potential therapeutic opportunities.

关键词： Dimethylarginine dimethylaminohydrolase Nitric oxi

Cell senescence,loss of splicing,and lipid metabolism in TDP-43-related neurodegenerative processes

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Neural Regeneration Research 2023年第8期18卷 1725-1726页

作者： pascual Torres Reinald Pamplona Manuel Portero-Otin Metabolic Pathophysiology Research Group Department of Experimental MedicineUniversity of Lleida-IRBLleidaLleidaSpain

In recent work,we have shown that cell senescence of mouse fibroblasts in vitro associates with a build-up of cryptic exons in selected mRNAs,whose level is usually controlled by the activity of TAR DNA binding protein of 43 kDa(Tdp-43)(Torres et al.,2022).In vivo,we also found traits of cell senescence in the motor neuron disease model achieved by overexpressing SOD-G93A,the SOD1 gene(harboring a single amino acid substitution of glycine to alanine at codon 93).

关键词： metabolism degenerative

Discriminatory capacity of serum interleukin-6 between complicated and uncomplicated acute appendicitis in children:a prospective validation study

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World Journal of Pediatrics 2022年第12期18卷 810-817页

作者： Javier Arredondo Montero Giuseppa Antona Adriana Rivero Marcotegui carlos Bardajípascual Mónica Bronte Anaut Raquel Ros Briones Amaya Fernández-Celis Natalia López-Andrés Nerea Martín-Calvo Pediatric Surgery Department Hospital Universitario de NavarraIrunlarrea 331008PamplonaSpain Clinical Analysis Department Hospital Universitario de NavarraPamplonaSpain Pathology Department Hospital Universitario de NavarraPamplonaSpain Cardiovascular Translational Research NavarraBiomed(Miguel Servet Foundation)Hospital Universitario de NavarraUniversidad Pública de Navarra(UPNA)IdiSNAPamplonaSpain School of Medicine Department of Preventive Medicine and Public HealthUniversity of NavarraPamplonaSpain CIBER Fisiopatología de la Obesidad y Nutrición(CIBERobn) Health Institute Carlos IIIMadridSpain Instituto de Investigación Sanitaria de Navarra IdiSNAPamplonaNavarraSpain

Background Serum interleukin-6(IL-6)has a moderate diagnostic performance in pediatric acute appendicitis(PAA).The evidence regarding its capacity to discern between complicated and uncomplicated PAA is *** We designed a prospective observational study to validate serum IL-6 as a marker for diagnostic classification between complicated and uncomplicated *** study included 205 patients divided into three groups:(1)patients who underwent major outpatient surgery(n=57);(2)patients with non-surgical abdominal pain(NSAP)in whom the diagnosis of PAA was excluded(n=53),and(3)patients with a confirmed diagnosis of PAA(n=95).The PAA patients were further classified as uncomplicated or complicated ***-6 concentration was determined in all patients at *** statistical analysis was performed using the Mann-Whitney U test,the Fisher exact test and the Kruskall Wallis *** area under the receiver operating characteristic curves(AUC)were *** Median(interquartile range,IQR)serum IL-6 values were 2 pg/mL(2.0–3.4)in group 1,3.9 pg/mL(2.4–11.9)in group 2,and 23.9 pg/mL(11.1–61.0)in group 3(P<0.001).Among the participants in group 3,those with uncomplicated PAA had median(IQR)serum IL-6 values of 17.2 pg/mL(8.5–36.8),and those with complicated PAA had 60.25 pg/mL(27.1–169)serum IL-6(P<0.001).At the cut-off point of 19.55 pg/mL,the AUC for the discrimination between patients in group 2 vs.3 was 0.83[95%confidence interval(CI)0.76–0.90],with a sensitivity of 61.3%and a specificity of *** AUC for the discrimination between patients with uncomplicated and complicated PAA was 0.77(95%CI 0.68–0.86)and the cut-off point was 25.90 pg/mL,with a sensitivity and specificity of 84.6%and 65.6%,*** Serum IL-6 has a good performance in discerning between complicated and uncomplicated PAA.A score including clinical and radiological variables may increase the diagnostic performance of this molecule.

关键词： Acute Appendicitis Complicated Diagnostic Interleukin-6 Pediatric Uncomplicated