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Synthesis of (B-C-N) Nanomaterials by Arc Discharge Using Heterogeneous Anodes

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Plasma Science and Technology 2016年第5期18卷 465-468页

作者： Djamel Eddine GOURARI Manitra RAZAFINIMANANA Marc MONTHIOUX raul ARENAL Flavien VALENSI Sebastien JOULIE Virginie SERIN LAPLACE (Laboratoire Plasma et Conversion d'Energie) CNRS-INPT-Universite Toulouse III 118 Route de Narbonne 31062 Toulouse Cedex 9 France CEMES (Centre d'Elaboration des Materiaux et d'Etudes Structurales) CNRS-Universite Toulouse III 29 rue Jeanne Marvig F-31055 Toulouse Cedex 4 France Instituto de Nanociencia de Aragon (INA) Universidad de Zaragoza Calle Mariano Esquillor 50018 Zaragoza Spain

In spite of the current prevalence of the CVD-based processes, the electric arc remains an interesting process for the synthesis of carbon nanoforms, thanks to its versatility, robustness and easiness. It also allows performing in-situ substitution of carbon atoms by hetero-elements in the graphene lattice. Our work aims to establish a correlation between the plasma properties, type and chemical composition （and the substitution rate） of the obtained single-wall carbon nan- otubes. The plasma was characterized by optical emission spectroscopy and the products were analyzed by high resolution transmission electron microscopy and core level Electron Energy-Loss Spectroscopy （EELS）. Results show that a high boron content leads to a plasma temperature decrease and hinders the formation of nanotubes. This effect can be compensated by increasing the arc current and/or yttrium content. The optimal conditions for the synthesis of boron- and/or nitrogen-substituted nanotubes correspond to a high axial plasma temperature associated to a strong radial gradient. EELS analysis confirmed that the boron incorporates into the graphenic lattice.

关键词： arc discharge plasma nanomaterials synthesis optical spectroscopy boronnitride doped carbon nanotubes HRTEM EELS

Application of artificial intelligence to forecast hydrocarbon production from shales

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Petroleum 2018年第1期4卷 75-89页

作者： Palash Panja raul Velasco Manas Pathak Milind Deo Energy&Geoscience Institute 432Wakara WaySuite 300Salt Lake CityUT 84108United States Department of Chemical Engineering University of Utah50Central Campus Dr.Salt Lake CityUT 84112United States

Artificial intelligence(AI)methods and applications have recently gained a great deal of attention in many areas,including fields of mathematics,neuroscience,economics,engineering,linguistics,gaming,and many *** is due to the surge of innovative and sophisticated AI techniques applications to highly complex problems as well as the powerful new developments in high speed *** applications of AI in everyday life include machine learning,pattern recognition,robotics,data processing and analysis,*** oil and gas industry is not behind either,in fact,AI techniques have recently been applied to estimate PVT properties,optimize production,predict recoverable hydrocarbons,optimize well placement using pattern recognition,optimize hydraulic fracture design,and to aid in reservoir characterization *** this study,three different AI models are trained and used to forecast hydrocarbon production from hydraulically fractured *** vastly used artificial intelligence methods,namely the Least Square Support Vector Machine(LSSVM)and the Artificial Neural Networks(ANN),are compared to a traditional curve fitting method known as Response Surface Model(RSM)using second order polynomial equations to determine production from *** objective of this work is to further explore the potential of AI in the oil and gas *** parameters are considered as input factors to build the model:reservoir permeability,initial dissolved gas-oil ratio,rock compressibility,gas relative permeability,slope of gas oil ratio,initial reservoir pressure,flowing bottom hole pressure,and hydraulic fracture *** range of values used for these parameters resemble real field scenarios from prolific shale plays such as the Eagle Ford,Bakken,and the Niobrara in the United *** data consists of oil recovery factor and produced gas-oil ratio(GOR)generated from a generic hydraulically fractured reservoir model using a commercial *** Box-Behnke

关键词： Surrogate models LSSVM ANN Oil recovery Artificial intelligence Unconventional reservoirs

Performance assessment and microbial diversity of two pilot scale multi-stage sub-surface flow constructed wetland systems

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Journal of Environmental Sciences 2016年第8期28卷 38-46页

作者： A.O.Babatunde raul Miranda-Caso Luengo Mehreen Imtiaz Y.Q.Zhao Wim G.Meijer Hydro-environmental Research Centre Institute of Environment and Sustainability Cardiff School of Engineering Cardiff UniversityQueen's Buildings UCD School of Civil Structural and Environmental Engineering Newstead Building University College Dublin UCD School of Biomolecular and Biomedical Science Conway Institute University College Dublin

This study assessed the performance and diversity of microbial communities in multi-stage sub-surface flow constructed wetland systems（CWs）. Our aim was to assess the impact of configuration on treatment performance and microbial diversity in the systems. Results indicate that at loading rates up to 100 g BOD5/（m2·day）, similar treatment performances can be achieved using either a 3 or 4 stage configuration. In the case of phosphorus（P）, the impact of configuration was less obvious and a minimum of 80% P removal can be expected for loadings up to 10 g P/（m2·day） based on the performance results obtained within the first16 months of operation. Microbial analysis showed an increased bacterial diversity in stage four compared to the first stage. These results indicate that the design and configuration of multi-stage constructed wetland systems may have an impact on the treatment performance and the composition of the microbial community in the systems, and such knowledge can be used to improve their design and performance.

关键词： Constructed wetlands Microbial diversity Wastewater treatment

Invasive oaks escape pre-dispersal insect seed predation and trap enemies in their seeds

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Integrative Zoology 2018年第3期13卷 228-237页

作者： MichałBOGDZIEWICZ raul BONAL Josep MESPELTA Ewa M.KALEMBA Michael A.STEELE RafałZWOLAK Department of Systematic Zoology Faculty of BiologyAdam Mickiewicz UniversityPoznańPoland CREAF Cerdanyola del VallesCataloniaSpain Forest Research Group INDEHESAUniversity of ExtremaduraPlasenciaSpain DITEG Research Group University of Castilla-La ManchaToledoSpain Laboratory of Seed Biochemistry Institute of DendrologyPolish Academy of SciencesKórnikPoland Department of Biology Wilkes UniversityWilkes-BarrePennsylvaniaUSA

Species introduced to habitats outside their native range often escape control by their natural *** competing with native species,an alien species might also affect the native herbivores by introducing a new source of different quality ***,we describe the case of northern red oak(Quercus rubra)invasion in *** collected data on insect(moth Cydia *** weevil Curculio spp.)seed predation of northern red oak in its native(USA,North America)and invasive(Poland,Europe)range,as well as for sessile oaks(Quercus petrea)in *** also evaluated the quality of acorns as hosts for weevil larvae by collecting infested acorns and measuring weevil developmental success,and quantifying acorn traits such as seed mass,tannins,lipids and protein *** used DNA barcoding to identify insects to the species *** predation by moths was similar and very low in both species and in both ***,red oaks escape pre-dispersal seed predation by weevils in *** infestation rates of northern red oak acorns in their invasive range were 10 times lower than that of sessile oaks,and also 10 times lower than that of red oaks in North ***,even when weevils oviposited into northern red oaks,the larvae failed to develop,suggesting that the exotic host created a trap for the *** phenomenon might gradually decrease the local abundance of the seed predator,and further aid the invasion.

关键词： biotic invasions ecological trap enemy release hypothesis seed predation weevils

Identification of adrafinil and its main metabolite modafinil in human ***-administration study and interpretation of an authentic case

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Forensic Sciences Research 2020年第4期5卷 322-326页

作者： Alice Ameline Laurie Gheddar Jean-Sébastien raul Pascal Kintz Institut de Médecine Légale Laboratoire de toxicologieStrasbourgFrance X-Pertise Consulting Département de toxicologieMittelhausbergenFrance

For several years,the misuse of stimulant substances is increasingly observed both in the field of sport,to improve the functions of the body and therefore to be more performant,and also by non-athletes to make life more tolerable on a daily ***,2-((diphenylmethyl)sulfinyl)-N-hydroxyacetamide,is a drug designed for the treatment of narcolepsy by promoting an awakened state,and to treat alertness and neurological symptoms in the *** is primarily metabolized in vivo to an active form,***,2-((diphenylmethyl)sulfinyl)*** World Anti-Doping Agency(WADA)banned these two drugs in sports in *** authors report an authentic case involving adrafinil and *** laboratory was requested to test for adrafinil in a hair strand collected from a woman found in posses-sion of vials of adrafinil and suspected of trafficking.A specific method was developed by liquid chromatography tandem mass spectrometry(LC-MS/MS).Unlike modafinil(varying from 6.8 to 13.9ng/mg),adrafinil was not identified in the *** interpretation of the results was difficult because this is the first case describing human hair *** order to be able to interpret the results,a self-administration study was conducted after an oral administration to a volunteer(200 mg)whose beard hair was collected 10days after *** analysis of this specimen highlighted the presence of adrafinil at 0.8ng/mg and modafinil at 0.5 ng/*** results demonstrate the dual identification of both compounds after a single consumption,even after administration of a low *** to these results,the analysis of the hair strand from the authentic case does not match with a con-sumption of adrafinil,in accordance with abuse of modafinil *** considered that this was a trafficking case of adrafinil,with no self-consumption.

关键词： Forensic sciences forensic toxicology adrafinil modafinil human hair UPLC-MS/MS stimulants

Treating acute large vessel occlusion stroke:to bridge or not to bridge?

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Stroke & Vascular Neurology 2021年第3期6卷 324-327页

作者： Yunyun Xiong Yuesong Pan raul G Nogueira Zeguang Ren Tudor G Jovin Yongjun Wang Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Neurology Marcus Stroke and Neuroscience CenterGrady Memorial HospitalEmory University School of MedicineAtlantaGeorgiaUSA Neurosurgery Cleveland Clinic Martin HealthPort St LucieFloridaUSA Cooper Neurologic Institute Cooper University HospitalCamdenNew JerseyUSA Neurology Cooper Medical School of Rowan UniversityCamdenNew JerseyUSA

Hot debates exist regarding whether patients who had an acute large vessel occlusion stroke(LVOS)can skip tissue plasminogen activator(tPA)and go directly to thrombectomy in comprehensive stroke *** head-to-head randomised clinical trials(RCTs)of direct endovascular treatment(dEVT)versus bridge therapy(BT)with intravenous alteplase have been recently completed in the Asian *** DIRECT-MT(Direct Intraarterial Thrombectomy in Order to Revascularize Acute Ischemic Stroke Patients with Large Vessel Occlusion Efficiently in Chinese Tertiary Hospitals:a Multicenter Randomized Clinical Trial)Study randomly enrolled 656 patients who had an acute ischaemic stroke with anterior circulation LVOS across 41 large teaching hospitals in China to receive BT or dEVT within 4.5 hours after symptom onset.

关键词： acute occlusion Acute

Effects of chlorpyrifos on enzymatic systems of Cydia pomonella （Lepidoptera： Tortricidae） adults

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Insect Science 2017年第3期24卷 455-466页

作者： Laura Beatriz Parra Morales raul Adolfo Alzogaray Liliana Cichon Silvina Garrido Jimena Soleno Cristina Monica Montagna Laboratorio de Investigaciones Bioquimicas Quimicas y de Medio Ambiente Facultad de Ingenieria Universidad Nacional del ComahueBuenos Aires 1400 (Q83001BX) Neuquen Facultad de Ciencias del Ambiente y la Salud Universidad Nacional del Comahue Buenos Aires 1400 Neuquen Centro de Investigaciones de Plagas e Insecticidas (CIPEIN-UNIDEFICONICET) Villa Martelli Buenos Aires Instituto de Investigacion e Ingenieria Ambiental (3iA-UNSAM) San Martin Provincia de Buenos Aires Instituto Nacional de Tecnologia Agropecuaria Estacion Experimental Alto Valle General Roca Argentina

The control program of codling moth （Cydia pomonella L.） in the Rio Negro and Neuqu6n Valley is intended to neonate larvae. However, adults may be subjected to sublethal pesticide concentrations generating stress which might enhance both mutation rates and activity of the detoxification system. This study assessed the exposure effects of chlorpyrifos on target enzyme and, both detoxifying and antioxidant systems of surviving adults from both a laboratory susceptible strain （LSS） and a field population （FP）. The results showed that the FP was as susceptible to chlorpyrifos as the LSS and, both exhibited a similar chlorpyrifos-inhibitory concentration 50 （IC50） of acetylcholinesterase （ACHE）. The FP displayed higher carboxylesterase （CarE） and 7-ethoxycoumarine O-deethylase （ECOD） activities than LSS. Both LSS and FP showed an increase on CarE activity after the exposure to low-chlorpyrifos concentrations, followed by enzyme inhibition at higher concentrations. There were no significant differences neither in the activities of glutathione S-transferases （GST）, catalase （CAT） and superoxide dismutase （SOD） nor in the reduced glutathione （GSH） content between LSS and FP. Moreover, these enzymes were unaffected by chlorpyrifos. In conclusion, control adults from the FP exhibited higher CarE and ECOD activities than control adults from the LSS. AChE and CarE activities were the most affected by chlorpyrifos. Control strategies used for C. pomonella, such as rotations of insecticides with different modes of action, will probably delay the evolution of insecticide resistance in FPs from the study area.

关键词： acetylcholinesterase antioxidant system chlorpyrifos codling moth detoxification enzymes

Preclinical models of idiosyncratic drug-induced liver injury(iDILI):Moving towards prediction

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Acta Pharmaceutica Sinica B 2021年第12期11卷 3685-3726页

作者： Antonio Segovia-Zafra Daniel E.Di Zeo-sanchez Carlos Lopez-Gomez Zeus Perez-Valdes Eduardo Garcıa-Fuentes raul J.Andrade M.Isabel Lucena Marina Villanueva-Paz Unidad de Gestio´n Clı´nica de Gastroenterologı´a Servicio de Farmacologıa ClınicaInstituto de Investigacio´n Biomedica de Malaga-IBIMAHospital Universitario Virgen de la VictoriaUniversidad de MalagaMalaga 29071Spain Centro de Investigacion Biomedica en Red en el Area Tematica de Enfermedades Hepaticas y Digestivas(CIBERehd) Madrid 28029Spain Platform ISCIII de Ensayos Clınicos UICEC-IBIMAMalaga 29071Spain Unidad de Gestion Clınica de Aparato Digestivo Instituto de Investigacion Biomedica de Malaga(IBIMA)Hospital Universitario Virgen de la VictoriaMalaga 29010Spai

Idiosyncratic drug-induced liver injury(iDILI) encompasses the unexpected harms that prescription and non-prescription drugs,herbal and dietary supplements can cause to the *** remains a major public health problem and a major cause of drug *** the lack of biomarkers for iDILI prediction,diagnosis and prognosis,searching new models to predict and study mechanisms of iDILI is *** of the major limitations of iDILI preclinical assessment has been the lack of correlation between the markers of hepatotoxicity in animal toxicological studies and clinically significant ***,major advances in the understanding of iDILI susceptibility and pathogenesis have come from the study of well-phenotyped iDILI ***,there are many gaps for explaining all the complexity of iDILI susceptibility and ***,there is a need to optimize preclinical human in vitro models to reduce the risk of iDILI during drug ***,the current experimental models and the future directions in iDILI modelling are thoroughly discussed,focusing on the human cellular models available to study the pathophysiological mechanisms of the disease and the most used in vivo animal iDILI *** also comment about in silico approaches and the increasing relevance of patient-derived cellular models.

关键词： Drug-induced liver injury Preclinical models Mechanisms Oxidative stress Mitochondrial damage Immune response Personalized medicine

Trace amine-associated receptors at the cross-road between innate olfaction of amines, emotions, and adult neurogenesis

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Neural Regeneration Research 2022年第6期17卷 1257-1258页

作者： Evgeniya V.Efimova Nataliia V.Katolikova Evgeny V.Kanov raul R.Gainetdinov Institute of Translational Biomedicine and Saint Petersburg University Hospital Saint Petersburg State UniversitySaint PetersburgRussia

Trace amines are the class of endogenous biogenic amines that traditionally include beta-phenylethylamine,p-tyramine,tryptamine,octopamine,and o *** t race amines represent products of amino acids decarboxylation by bacterial decarboxylases during tissue putrefaction or by endogenous decarboxylases in the *** of trace amines by gut microbiota is also known(Berry et al.,2017;Gainetdinov et al.,2018).Thus,trace amines are enriched during the decomposition of proteins and concentrated in certain bodily fluids.

关键词： amines Berry concentrated