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Further investigation on the fusion of ^(6)Li with ^(209)Bi target at near-barrier energies

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Chinese Physics C 2024年第7期48卷 106-117页

作者：张高龙焦振威张广鑫 m.R.Cortes 胡世鹏钱建强 D.m.n.oni 屈卫卫李聪博郑云张焕乔孙慧斌王楠张春雷 J.J.Valiente-Dobón D.Testov m.mazzocco A.Gozzelino C.Parascandolo D.Pierroutsakou m.La Commara A.Goasduff D.Bazzacco D.R.napoli F.Galtarossa F.Recchia A.Illana S.Bakes I.Zanon S.Aydin G.de Angelis m.Siciliano R.m.n.gazzo S.m.Lenzi J.L.Ferreira J.Rangel Serkan Akkoyun L.F.Canto J.Lubian School of Physics Beihang UniversityBeijing 100191China Sino-French Institute of nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Instituto de Física Universidade Federal Fluminense24210-340NiteróiRio de JaneiroBrazil Institute for Advanced Study in nuclear Energy&Safety Shenzhen UniversityShenzhen 518060China Shenzhen Key Laboratory of Research and m.n.facture of High Purity Germ.n.um materials and Fetectors Shenzhen UniversityShenzhen 518060China InFn Sezione di PadovaPadovaItaly Dipartim.n.o di fisica Astronomia dell'Universita di padova PadovaItaly State Key Laboratory of Radiation medicine and Protection School of Radiation Medicine and ProtectionSoochow UniversitySuzhou 215123China China Institute of Atomic Energy Beijing 102413China The Key Laboratory of Beam Technology and material modification of m.n.stry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China InFn Laboratori Nazionali di LegnaroI-35020 LegnaroItaly InFn Sezione di NapoliI-80126 NapoliItaly Dipartim.n.o di Farmacia Universitàdi Napoli"Federico II"I-80131 NapoliItaly Departm.n. of natural and mathematical Sciences Faculty of EngineeringTarsus University33480 MersinTurkiye Physics Division Argonne National LaboratoryLemont-ILUSA Departam.n.o de matemaética Física e Computaç˜ao Universidade do Estado do Rio de JaneiroFaculdade de Tecnologia27537-000ResendeRio de JaneiroBrazil Departm.n. of Physics Sivas Cumhuriyet UniversitySivasTurkey Instituto de Física Universidade Federal do Rio de JaneiroCP 6852821941-972Rio de JaneiroBrazil

The complete and incomplete fusion cross sections for ^(6)Li+^(209)Bi were measured using the in-beamγ-ray method around the Coulomb *** cross sections of(deuteron captured)incomplete fusion(ICF)products were re-quantified experim.n.ally for this reaction *** results reveal that the ICF cross section is equivalent to that of complete fusion(CF)above the Coulomb barrier and dom.n.nt near or below the Coulomb barrier.A theoretical calculation based on the continuum discretized coupled channel(CDCC)method was performed for the aforem.n.ioned CF and ICF cross sections;the result is consistent with the *** universal fusion function(UFF)was also compared with the measured CF cross section for different barrier parameters,dem.n.trating that the CF suppression factor is significantly influenced by the choice of potential,which can reflect both dynamic and static effects of breakup on the fusion process.

关键词： cross section incomplete fusion suppression factor weakly bound nuclei

Analysis of synthetic parameters for coating alum.n.m powders with phenyltriethoxysilane coupling agent and their effects on powder flow behavior

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Particuology 2024年第7期90卷 412-417页

作者： Lillian m.mawby Bellamarie Ludwig Benjam.n.J.Lear Departm.n. of Chemistry The Pennsylvania State UniversityUniversity ParkPA16802USA Applied Research Laboratory The Pennsylvania State UniversityUniversity ParkPA16802USA

Though silanization of alum.n.m powder is currently used to improve its flow properties,for use as an alternative fuel source,there are a wide range of experim.n.al parameters for the process and not all of them have been thoroughly *** this is complete,it is unknown if the process is optimized in terms of time,efficiency,and ***,we report on a study into the effects of changes in humidity,degree of agitation,reaction temperature,and curing time upon the deposition of phenyl triethoxysilane into 20μm(d50)alum.n.m *** confirm the deposition of the coating via diffuse reflectance infrared spectroscopy and x-ray photoelectron *** then characterize the coated particles using apparent density measurem.n.s and Carney flow *** analysis of variance,we find that,of the parameters explored,only changes in cure time and reaction temperature provide meaningful changes to the apparent density,while none of our parameters produced statistically significant changes in Carney flow ***,we conclude that,when optimizing silanization of alum.n.m particles,environm.n.al control of humidity is unneeded and that the reaction can be run with m.n.mal *** ability to largely ignore these parameters is a benefit to large-scale processing.

关键词： Alum.n.m powder Silane Fluidization Apparent density Carney flow

Structural effects induced by dialysis-based purification of carbon nanomaterials

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nano materials Science 2024年第4期6卷 475-483页

作者： A.D.Veloso A.m.Ferraria A.m.Botelho do Rego A.S.Viana A.J.S.Fernandes A.J.Fielding R.A.Videira m.C.Oliveira CQ-VR and Chemistry Departm.n. University of Trás-os-Montes e Alto Douro BSIRG iBB-Institute for Bioengineering and BiosciencesDepartment of Chemical Engineeringand Associate Laboratory i4HB-Institute for Health and BioeconomyInstituto Superior TécnicoUniversidade de Lisboa Centro de Química Estrutural Institute of Molecular SciencesDepartamento de Química e BioquímicaFaculdade de CiênciasUniversidade de Lisboa I3n and Physics Departm.n. University of AveiroCampus de Santiago Faculty of Science Pharmacy and Biomolecular SchoolLiverpool John Moores University REQUImTE/LAQV Laborat orio de FarmacognosiaDepartamento de QuímicaFaculdade de Farm aciaUniversidade do Porto

Dialysis plays a crucial role in the purification of nanomaterials but its impact on the structural properties of carbon nanomaterials was never ***,a carbon-based nanomaterial generated electrochemically in potassium phosphate buffer,was characterized before and after dialysis against pure *** is shown that dialysis affects the size of the carbon domains,structural organization,surface functionalization,oxidation degree of carbon,and grade of ***,dialysis drives the nanomaterial organization from discrete roundish carbon domains,with sizes ranging from 70 to 160 nm,towards linear stacking structures of small nanoparticles （nm）.In parallel,alcohol and ether （epoxide） surface groups evolve into more oxidized carbon groups （e.g.,ketone and ester groups）.Investigation of the as-prepared nanomaterial by electron paramagnetic resonance （EPR） revealed a resonance signal consistent with carbon-oxygen centred ***,this study brings to light the selective affinity of the carbon nanomaterial under study to capture na+ions,a property greatly enhanced by the dialysis process,and its high ability to trap oxygen,particularly before *** findings open new perspectives for the application of carbon-based nanomaterials and raise awareness of the importance of structural changes that can occur during the purification of carbon-based nanomaterials.

关键词： nanocarbon Surface functionalization nmR XPS Hydrophilic carbon Paramagnetic

SPEED:an integrated,smartphone-operated,handheld digital PCR Device for point-of-care testing

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microsystems & nanoengineering 2024年第3期10卷 149-158页

作者： Haoqing Zhang Xiaocheng Liu Xinlu Wang Zhiqiang Yan Ying Xu martina Gaňová TomášŘezníček marie Korabečná Pavel neuzil m.n.stry of Education Key Laboratory of micro and nano Systems for Aerospace School of Mechanical EngineeringNorthwestern Polytechnical University127 West Youyi RoadXi’anShaanxi 710072PR China The Key Laboratory of Biomedical Information Engineering of the m.n.stry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’anShaanxi 710049PR China Bioinspired Engineering and Biomechanics Center(BEBC) Xi’an Jiaotong UniversityXi’an 710049PR China School of marine Science and Technology Northwestern Polytechnical UniversityXi’anShaanxi 710072PR China Central European Institute of Technology Brno University of TechnologyPurkyňova 12361300 BrnoCzech Republic ITD Tech S.R.O Osvoboditelu100573581 BohumínCzech Republic Institute of Biology and medical Genetics First Faculty of MedicineCharles University and General University Hospital of PragueAlbertov 412800 PragueCzech Republic

This study elaborates on the design,fabrication,and data analysis details of SPEED,a recently proposed smartphonebased digital polymerase chain reaction(dPCR)*** dPCR chips incorporate partition diameters ranging from 50μm to 5μm,and these partitions are organized into six distinct blocks to facilitate image *** to the superior thermal conductivity of Si and its potential for mass production,the dPCR chips were fabricated on a Si substrate.A temperature control system based on a high-power density Peltier elem.n. and a preheating/cooling PCR protocol user interface shortening the thermal cycle *** optical design employs four 470 nm light-emitting diodes as light sources,with filters and mirrors effectively m.n.ging the light emitted during *** algorithm is utilized for image processing and illum.n.tion nonuniformity correction including conversion to a m.n.chromatic format,partition identification,skew correction,and the generation of an image correction *** validated the device using a range of deoxyribonucleic acid targets,dem.n.trating its potential applicability across multiple ***,we provide guidance and verification of the design and testing of the recently proposed SPEED device.

关键词： correction smart testing

Wood anatomical acclimation in the endemic genus Polylepis in Peruvian Andean forests

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Journal of mountain Science 2024年第9期21卷 2986-3000页

作者： Anthony GUERRA Fressia n.AmES-mARTÍnEZ Ernesto C.RODRÍGUEZ-RAmÍREZ Postgraduate Programme in Agronomy/Plant Physiology Departm.n. of Biology-Institute of natural Sciences Federal University of LavrasLavras 37203-202Minas Gerais 30000-31999Brazil Laboratory of Biotechnology and molecular Biology Continental UniversitySan Antonio UrbanizationHuancayo 12000Peru Ecology and Biodiversity Research Programme ANDINUS AssociationMiguel Grau Street 370Huancayo 12000Peru Dendrochronology Laboratory Continental UniversitySan Carlos Avenue 1980Huancayo 12000Peru

Polylepis(Queñua)is a dom.n.nt woody plant genus in Andean Puna forests that occurs in a wide range of m.n.ane habitats and is ecologically diverse in endemism,which may be particularly threatened by climate *** anatomical traits are essential for understanding how plants adjust their ecophysiological requirem.n.s and maximize their resilience,resistance,and recovery to extreme *** the effects of extreme climatic conditions in high altitude ecosystems have been studied extensively,our knowledge is relatively limited to quantitative differences in the main xylem *** address this gap,we assessed the acclimation of wood anatomical traits in six Peruvian Andean Polylepis species with different water availability(semi-dry with high moisture and semiarid with dry winters).We selected hydraulic diameter,vessel density,vessel grouping index,solitary vessel index,vulnerability index,mesomorphy index,vessel elem.n. length,fiber length,fiber wall thickness,fiber lum.n.diameter,and total fiber diameter that can provide relevant eco-wood anatomical acclimation to hydric *** performed multivariate analysis to determ.n. the leading dim.n.ions of covariation am.n. Polylepis species and climatic *** wood anatomical traits(vessel grouping index,vulnerability index,and fiber wall thickness)were dissimilar between xeric-and mesic-Polyelpis *** study dem.n.trates that wood anatomical traits in Peruvian Andean Polylepis species provides high-resolution and long-term eco-wood anatomical signals on how climate oscillations drive the acclimation processes of fiber and vessel *** findings underscore the significance of xylem hydraulic adjustm.n. to various hydrological environm.n.s in Andean puna *** evaluating the effects of drought on wood anatomical characteristics and ecological function,we dem.n.trate the capacity of tree species to adapt and endure climate-related changes,thereby emphasizing their resilience and ada

关键词： Carlquist indices Climatic resilience Vessel traits Fiber Functional trait Hydric stress

Vegetation Response To Soil And morphological Properties In An Arid Region Alluvial Fan Landscape. Pre-Andes Of San Juan， Argentina

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Journal of Earth Science 2024年

作者： FLORES Daniel Germ.n.OCA?A Raúl Emm.n.el mELIán Edgardo ORTEG Andrés ESPER AnGILLIERI maría Yanina PITTALUGA maría Alejandra CIGEOBIO (COnICET-UnSJ) Av.José I.de la Roza y meglioli Gabinete de Geología Ambiental， InGEO， Universidad nacional de San Juan， Av.José I.de la Roza y meglioli

The m.n.e Desert is characterized by a great diversity of landforms created with fluvial， alluvial which the vegetation patterns are related to. The present work has the following objectives: 1: determ.n. whether topographical attributes， surface characteristics， soil properties and vegetation patterns vary between alluvial landforms， and 2: define whether morphometric， soil and surface properties influence vegetation patterns along alluvial landscape. morphometric data were obtained by processing a 5 m digital elevation model. The coverage of rock fragm.n.s， fine sedim.n.s and mulch was quantified. Observations and descriptions of the soil profiles were restricted to the uppermost 50 cm. Vegetation properties were calculated using a Point Quadrat method. The relationship between variables was evaluated through multivariate statistical analysis. The main results show the presence of 45 plant species distributed in 19 families， where shrubs are dom.n.nt. The wind effect， topographic wetness and dissection of the landscape are limiting factors of diversity. The coverage of superficial rock fragm.n.s influence vegetation coverage through the distribution and availability of rainwater. Furthermore， the different soil textures reveal that the silt content favors an increase in vegetation coverage. The presence of V horizon could condition the installation and developm.n. of vegetation in the early stages of growth.

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Time for a new Paradigm in Oncology? Viewpoint of the Radiobiologist

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Open Journal of Biophysics 2024年第1期14卷 11-55页

作者： Aleksey n. Shoutko Departm.n. of Transplantation and Cells Technologies Russian Research Center of Radiology and Surgical Technologies Named after A. M. Granov Saint-Petersburg Russia

The current imm.n.oncology artificially ignores the connection with lymphopoiesis, though is only its derivative. Hematopoietic stem cells (HSC) provide physiological regeneration of biomass of the host, fetus, and malignant tumors, as well, as the cells’ reparation after sub-lethally injuring in any tissues and their renewal. HSC, especially of lymphoid lineage, are the most vulnerable of those, which are responsible for viability of organism. natural and artificial deficits of HSC determ.n. aging, multi-organs syndromes and death of the host, because their current proliferative resource (CPR) is individually limited at birth, and is spending irreversibly during wounds’ healing, pregnancy, tumor growth, and on. CPR, being an integral value of the number of stem cells along the length of their telomeres, is a “shagreen skin”, for which the tumor competes with normal tissues as a quasi-embryonic favorite and winner, especially in the final period of a shortening the life. The primary approach to cancer treatm.n. must prioritize the preservation of CPR remnants, rather than their destruction, in order to temporarily halt the malignant process. The re-targeting of HSC from tumors in favor of normal tissues is the immediate objective of competitive therapy, which allows for preserving the rest of the CPR host’s resources, especially in patients with advanced cancer. However, the contradictory and insignificant practically, the dogma of antitumor cellular imm.n.ty continues to dom.n.te and hinder progress in oncology.

关键词： Lymphopoiesis Proliferating Resource morphogenesis Cancer-Fetus Reparation-Regeneration Competitive Therapy

Prevalence and Study of the Clonality of Extended-Spectrum Beta-Lactamase-Producing Klebsiella pneum.n.ae Strains in neonatology at the University Hospitals of Abidjan by the Pulsed Field Gel Electrophoresis and the Quantitative Antibiogram

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Advances in microbiology 2024年第9期14卷 416-429页

作者： Valérie m’Bengue Gbonon Sidjè Arlette Afran Stanislas Assohoun Egomli Djeda Franck Arnaud Gnahoré Aboubakar Sylla n’Golo David Coulibaly nathalie Guessennd Assanvo Sim.n.Pierre n’Guetta mireille Dosso Antibiotics Natural Substances and Anti-Infectious Resistance Surveillance Unit Pasteur Institute of Cte dIvoire Abidjan Cte dIvoire molecular Genetics Platform Pasteur Institute of Cte dIvoire Abidjan Cte dIvoire Genetics and Species Improvem.n. Laboratory Flix Houphout Boigny University Abidjan Cte dIvoire mechanics and Computer Sciences Laboratory Flix Houphout Boigny University Abidjan Cte dIvoire Biology and Health Laboratory Flix Houphout Boigny University Abidjan Cte dIvoire molecular Biology Platform Pasteur Institute of Cte dIvoire Abidjan Cte dIvoire

Background: ESBL-producing strains of Klebsiella pneum.n.ae, one of the main causes of nosocomial and hospital-acquired infections, are comm.n.y associated with therapeutic impasses. Surveillance of these multidrug-resistant pathogens is a crucial tool for controlling and preventing infections. This surveillance involves the use of appropriate molecular and phenotypic typing techniques. The choice of techniques is based on criteria such as discrim.n.tory power, intra- and inter-laboratory reproducibility, epidemiological concordance, ease of use and cost. The aim of our study was to identify clusters of Extended-Spectrum Beta-Lactamase-producing Klebsiella pneum.n.ae (ESBL-K. pneum.n.ae) strains circulating in neonatology using quantitative antibiogram (QA) and Pulsed Field Gel Electrophoresis (PFGE). materials and methods: This cross-sectional study included 55 K. pneum.n.ae strains isolated from a total of 513 samples. These various samples are taken from.n.wborns, healthcare personnel, and the environm.n.. K. pneum.n.ae identification followed standard bacteriological procedures and was confirmed using the Vitek® 2 (biomérieux). The detection of the ESBL phenotype was performed using the synergy test. QA and PFGE were used to identify clonal relationships between the various strains isolated. Concordance between these two methods was assessed by calculating Cohen’s KAPPA coefficient and Simpson’s diversity index. Results: Am.n. the 55 K. pneum.n.ae strains included in this study, 58.2% (32/55) were found to be Extended-Spectrum Beta-Lactamase (ESBL) producers. most of these strains were isolated from.n.onatal samples (blood samples and rectal swabs). The quantitative antibiogram method applied to 28 out of the 32 ESBL-producing strains revealed that the isolates were grouped into 5 clusters. Pulsed Field Gel Electrophoresis performed on a total of 16 ESBL-producing strains showed the existence of four profiles. A perfect concordance was observed between the two m

关键词： Resistance-Clone-Klebsiella pneum.n.ae-Pulsed Field Gel Electrophoresis-Quantitative Antibiogram

Grain refinem.n. of mg-Ca alloys by native mgO particles

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Journal of magnesium and Alloys 2024年第3期12卷 980-996页

作者： Shihao Wang Yun Wang Quentin m.Ramasse Zhongyun Fan Super STEm Laboratory SciTech Daresbury CampusDaresbury WA44ADUK School of Chemical and Process Engineering University of LeedsLeeds LS29JTUK BCAST Brunel University LondonUxbridgeMiddlesex UB83PHUK

In mg-Ca alloys the grain refining mechanism,in particular regarding the role of nucleant substrates,remains the object of *** native mgO is being recognised as a nucleating substrate accounting for grain refinem.n. of mg alloys,the possible interactions of mgO with alloying elem.n.s that may alter the nucleation potency have not been elucidated ***,we design casting experim.n.s of mg-xCa alloys varied qualitatively in number density of native mgO,which are then comprehensively studied by advanced electron *** results show that grain refinem.n. is enhanced as the particle number density of mgO *** native mgO particles are modified by interfacial layers due to the co-segregation of Ca and n solute atoms at the mgO/mg *** aberration-corrected scanning transmission electron microscopy and electron energy loss spectroscopy,we reveal the nature of these Ca/n interfacial layers at the atomic *** of the crystallographic term.n.tion of mgO,Ca and n co-segregate at the mgO/mg interface and occupy mg and O sites,respectively,form.n. an interfacial structure of a few atomic *** interfacial structure is slightly expanded,less ordered and defective compared to the mgO matrix due to compositional deviations,whereby the mgO substrate is altered as a poorer template to nucleate mg *** solidification in a TP-1 mould,the impotent mgO particles account for the grain refining mechanism,where they are suggested to participate into nucleation and grain initiation processes in an explosive *** work not only reveals the atomic engineering of a substrate through interfacial segregation but also dem.n.trates the effectiveness of a strategy whereby native mgO particles can be harnessed for grain refinem.n. in mg-Ca alloys.

关键词： mg-Ca alloy Grain refinem.n. mgO Interfacial segregation STEm/EELS Solidification.

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