检索结果-南通市图书馆

neural Regeneration Research 2024年第3期19卷 489-490页

作者： Boyoung lee Hyun joo An Center for Cognition and Sociality Institute for Basic Science(IBS)DaejeonSouth Korea Asia-Pacific Glycomics Reference Site DaejeonSouth Korea Graduate School of Analytical Science&Technology Chungnam National UniversityDaejeonSouth Korea

Glycosylation is a process that involves the addition of sugar moieties or glycans to different types of molecules,including proteins,lipids,and nucleic *** these,protein glycosylation is one of the most prevalent forms of post-translational modification,playing a crucial role in biological *** more than ten m.nosaccharides identified within mammalian brain cells and more than 1×1012 possible combinations,the heterogeneity of glycosylation is extensive(Conroy et al.,2021).The diversity of glycans and the complexity of their structures allow for a wide range of protein functions.n-glycans are one of the most abundant forms of glycans and are involved in various cellular functions.n-glycans can be added to proteins at specific sequons,Asn-X-Ser/Thr,and are classified into three main types in mature glycoproteins:high m.nnose,complex,and *** m.nnose n-glycans consist of 5-9 m.nnose residues linked to a chitobiose core and undergo processing into complex or hybrid forms in the Golgi apparatus(Varki et al.,2017).Complex n-glycans are more diverse and contain various branched structures such as antennae with fucose,galactose,and sialic acid *** n-glycans contain one or more complex branches in conjunction with an oligom.nnose branch(Fisher and Ungar,2016).Understanding the specific functions of these different types of n-glycans in protein regulation,folding,and function is an active area of research in the life sciences,including glycobiology.

关键词： functions function apparatus

Evolution of nonmetallic inclusions in 80-t 9CrmoCoB large-scale ingots during electroslag remelting process

在线全文

学校读者我要写书评

暂无评论

International Journal of m.nerals,metallurgy and materials 2024年第7期31卷 1525-1539页

作者： Shengchao Duan m.n joo lee Yao Su Wangzhong mu Dong Soo Kim joo Hyun Park School of mechanical and materials Engineering North China University of TechnologyBeijing 100144China Departm.nt of materials Science and Chemical Engineering Hanyang UniversityAnsan 15588Rep.of Korea Departm.nt of materials Science and Engineering KTH Royal Institute of TechnologyBrinellvägen 23Stockholm 10044Sweden Departm.nt of Engineering Science and mathematics Division of Materials ScienceLuleåUniversity of Technology97187 LuleåSweden Casting&Forging Business Unit Nuclear Business GroupDoosan EnerbilityChangwon 51711Rep.of Korea

In combination with theoretical calculations,experim.nts were conducted to investigate the evolution behavior of nonmetallic inclusions(nmIs)during the m.nufacture of large-scale heat-resistant steel ingots using 9CrmoCoB heat-resistant steel and CaF_(2)–CaO–Al_(2)O_(3)–SiO_(2)–B_(2)O_(3)electroslag remelting(ESR)-type slag in an 80-t industrial ESR *** main types of nmI in the consumable electrode comprised pure alum.na,a multiphase oxide consisting of an Al_(2)O_(3)core and liquid CaO–Al_(2)O_(3)–SiO_(2)–mnO shell,and m_(23)C_(6)carbides with an mnS *** Al_(2)O_(3)and mnS inclusions had higher precipitation temperatures than the m_(23)C_(6)-type carbide under equilibrium and nonequilibrium solidification ***,inclusions can act as nucleation sites for carbide layer *** ESR process completely removed the liquid CaO–Al_(2)O_(3)–SiO_(2)–mnO oxide and mnS inclusion with a carbide shell,and only the Al_(2)O_(3)inclusions and Al_(2)O_(3)core with a carbide shell occupied the remelted *** m_(23)C_(6)-type carbides in steel were determ.ned as Cr_(23)C_(6)based on the analysis of transmission electron microscopy *** substitution of Cr with W,Fe,or/and mo in the Cr_(23)C_(6)lattice caused slight changes in the lattice parameter of the Cr_(23)C_(6)***,Cr_(21.34)Fe_(1.66)C_(6),(Cr_(19)W_(4)C_(6),Cr_(18.4)mo_(4.6)C_(6),and Cr_(16)Fe_(5)mo_(2)C_(6)can match the fraction pattern of Cr_(23)C_(6)*** Al_(2)O_(3)inclusions in the remelted ingot formed due to the reduction of CaO,SiO_(2),and mnO components in the liquid *** increased Al content in liquid steel or the higher supersaturation degree of Al_(2)O_(3)precipitation in the remelted ingot than that in the electrode can be attributed to the evaporation of CaF_(2)and the increase in CaO content in the ESR-type slag.

关键词： nonmetallic inclusion heat-resistant steel electroslag remelting m_(23)C_(6) carbide mnS inclusion supersaturation degree

Dynamical control of nanoscale light-matter interactions in low-dim.nsional quantum materials

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2024年第2期13卷 236-253页

作者： Yeonjeong Koo Taeyoung moon m.ngu Kang Huitae joo Changjoo lee Hyeongwoo lee Vasily Kravtsov Kyoung-Duck Park Departm.nt of Physics Pohang University of Science and Technology(POSTECH)Pohang37673Republic of Korea School of Physics and Engineering ITMO UniversitySaint Petersburg197101Russia

Tip-enhanced nano-spectroscopy and-imaging have significantly advanced our understanding of low-dim.nsional quantum materials and their interactions with light,providing a rich insight into the underlying physics at their natural length ***,various functionalities of the plasm.nic tip expand the capabilities of the nanoscopy,enabling dynamic m.nipulation of light-matter interactions at the *** this review,we focus on a new paradigm of the nanoscopy,shifting from the conventional role of imaging and spectroscopy to the dynamical control approach of the tip-induced light-matter *** present three different approaches of tip-induced control of light-matter interactions,such as cavity-gap control,pressure control,and near-field polarization ***,we discuss the nanoscale modifications of radiative emissions for various emitters from weak to strong coupling regime,achieved by the precise engineering of the ***,we introduce recent works on light-matter interactions controlled by tip-pressure and near-field polarization,especially tunability of the bandgap,crystal structure,photolum.nescence quantum yield,exciton density,and energy transfer in a wide range of quantum *** envision that this comprehensive review not only contributes to a deeper understanding of the physics of nanoscale light-matter interactions but also offers a valuable resource to nanophotonics,plasm.nics,and materials science for future technological advancem.nts.

关键词： quantum precise shifting

Disordered Structure and Reversible Phase Transformation from K-Birnessite to Zn-Buserite Enable High-Perform.nce Aqueous Zinc-lon Batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy & Environm.ntal materials 2024年第3期7卷 100-111页

作者： nibagani naresh Suyoon Eom Sang Jun lee Su Hwan Jeong Ji-Won Jung Young Hwa Jung joo-Hyung Kim Departm.nt of materials Engineering and Convergence Technology Gyeongsang National University(GNU)Jinju 52828South Korea School of material Science and Engineering(Ceramic Engineering) Gyeongsang National University(GNU)Jinju 52828South Korea School of materials Science and Engineering University of Ulsan(UOU)Ulsan 44776South Korea PLS-ⅡBeamline Division Pohang Accelerator Laboratory(PAL)Pohang 37673South Korea

The layeredδ-mnO_(2)(dmO)is an excellent cathode material for rechargeable aqueous zinc-ion batteries owing to its large interlayer distance(~0.7 nm),high capacity,and low cost;however,such cathodes suffer from structural degradation during the long-term cycling process,leading to capacity *** this study,a Co-doped dmO composite with reduced graphene oxide(GC-dmO)is developed using a simple cost-effective hydrothermal *** degree of disorderness increases owing to the hetero-atom doping and graphene oxide *** is dem.nstrated that layered dmO and GC-dmO undergo a structural transition from K-birnessite to the Zn-buserite phase upon the first discharge,which enhances the intercalation of Zn^(2+)ions,H_(2)O molecules in the layered *** GC-dmO cathode exhibits an excellent capacity of 302 mAh g^(-1)at a current density of 100 mAg^(-1)after 100 cycles as compared with the dmO cathode(159 mAhg^(-1)).The excellent electrochemical perform.nce of the GC-dmO cathode owing to Co-doping and graphene oxide sheets enhances the interlayer gap and disorderness,and maintains structural stability,which facilitates the easy reverse intercalation and de-intercalation of Zn^(2+)ions and H_(2)O ***,GC-dmO is a promising cathode material for large-scale aqueous ZIBs.

关键词： aqueous zinc-ion batteries birnessite buserite disordered structure phase transformation

mixed-dim.nsional stacked nanocomposite structures for a specific wavelength-selectable ambipolar photoresponse

在线全文

学校读者我要写书评

暂无评论

nano Research 2024年第6期17卷 5549-5558页

作者： Young Jae Park Jaeho Shim joo Song lee Kyu Seung lee Ji-Yeon Kim Kang Bok Ko Sang-Youp Yim Seongjun Kim Hoon-Kyu Shin Donghee Park Yong Ju Yun Dong Ick Son Institute of Advanced Composite materials Korea Institute of Science and TechnologyJeollabuk-do 55324Republic of Korea national Institute for nanomaterials Technology Pohang University of Science and TechnologyGyeongsangbuk-do 37673Republic of Korea Departm.nt of Semiconductor Science and Technology Semiconductor Physics Research CenterJeonbuk National UniversityJeonju 54896Republic of Korea Advanced Photonics Research Institute Gwangju Institute of Science and TechnologyGwangju 61005Republic of Korea Center for Opto-Electronic materials and Devices Post-Silicon Semiconductor InstituteKorea Institute of Science and TechnologySeoul 02792Republic of Korea Graduate School of Energy and Environm.nt(KU-KIST Green School) Korea UniversitySeoul 02841Republic of Korea KIST School Department of Nanomaterials and Nano ScienceUniversity of Science and Technology(UST)Daejeon 34113Republic of Korea

mixed-dim.nsional composite structures using zero-dim.nsional(0D)quantum dots(QDs)and two-dim.nsional(2D)transition metal dichalcogenides(TmDs)materials are expected to attract great interest in optoelectronics due to the potential to generate new optical ***,we report on the unique optical characteristics of a devices with mixed dim.nsional vertically stacked structures based on tungsten diselenide(WSe_(2))/CdSeS QDs m.nolayer/molybdenum disulfide(moS_(2))(2D/0D/2D).Specifically,it exhibits an ambipolar photoresponse characteristic,with a negative photoresponse observed in the 400-600 nm wavelength range and a positive photoresponse appeared at 700 nm *** resulted in the high negative responsivity of up to 52.22 mA·W^(−1)under 400 nm,which is 163 times higher than that of the photodetector without CdSeS *** also dem.nstrated the negative photoresponse,which could be due to increased carrier collision probability and non-radiative *** modeling and simulation reveal that Auger recombination am.ng the types of non-radiative recombination is the main cause of negative photocurrent ***,we discovered ambipolar photoresponse near a specific wavelength corresponding to the energy of quantum *** study revealed interesting phenom.non in the mixed low-dim.nsional stacked structure and paved the way to exploit it for the developm.nt of innovative photodetection materials as well as for optoelectronic applications.

关键词： mixed-dim.nsion quantum dot heterostructure photodetector ambipolar photoresponse

Anti-obesity effects of fucoidan from Sargassum thunbergii in adipocytes and high fat diet induced obese mice through inhibiting adipogenic specific transcription factor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Hum.n Wellness 2024年第3期13卷 1608-1616页

作者： Hyo-Geun lee H.H.A.C.K.Jayawardhana Fengqi Yang D.P.nagahawaththa n.m.Liyanage Kyung-mo Song Yun-Sang Choi Seung-Hong lee You-Jin Jeon m.n-Cheol Kang Departm.nt of marine Life Sciences Jeju National UniversityJeju 63243Republic of Korea marine Science Institute Jeju National UniversityJeju 63333Republic of Korea Research Group of Food Processing Korea Food Research InstituteWanju 55365Republic of Korea Departm.nt of Pharmoceutical Engineering Soonchunhyang UniversityAsan 31538Republic of Korea

The prevalence of obesity has increased and is a health concern *** to the concerns regarding synthetic anti-obesity treatm.nts,nowadays natural products become a *** studies proved that there is a potential to use marine algae as anti-obesity ***,in this study,the lipid inhibitory effect of crude polysaccharide of amyloglucosidase-assisted hydrolysate from Sargassum thunbergii(STAC)and its fucoidan fractions(STAFs)on 3T3-L1 cells and high-fat diet(HFD)-induced obese mice were *** to the results,the STAF3,showed the highest xylose content and exhibited significant inhibitory effects on lipid accumulation by downregulating adipogenic and lipogenic proteins in 3T3-L1 ***,oral supplem.ntation with STAC significantly declined gain in body weight and fat weight,and serum lipid contents in an HFD-induced obesity mouse *** and chemical characterizations dem.nstrated that puritied STAF3 has consistent surface morphology and small particle size,with similar structural characteristics as commercial ***,these results indicate that STAC and purified STAF3 from Sargassum thunbergia is a potent source to develop as ananti-obesity agents or functional food products to counter obesity.

关键词： Sargassum thunbergii Fucoidan Anti-obesity Anti-steatosis

Recipient artery dissection during extracranial-intracranial bypass surgery:Two case reports

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第31期12卷 6479-6485页

作者： Yong-Jun lee Wan Park Sung-Pil joo Departm.nt of neurosurgery Chonnam National University Hospital and Medical SchoolGwangju 61469South Korea Departm.nt of neurosurgery Chonnam National University HospitalGwangju 61469South Korea

BACKGROUnD Superficial temporal artery to middle cerebral artery(STA-mCA)bypass is a valuable treatm.nt for preventing ischemia and hemorrhage in occlusive cerebrovascular *** site dissection is rarely reported am.ng the various bypass-related *** SUmmARY In this case report,we describe two patients,who were 63-and 59-years-old with middle cerebral artery occlusion treated by STA-mCA *** bypass surgery,the recipient m4 artery intima was *** sacrificed the dissecting portion,and no complications occurred during the follow-up *** brain imaging revealed improved brain *** report rare cases of recipient artery dissection located in the extracranial to intracranial bypass site,and we suggest atherosclerotic changes in the recipient artery and insufficient puncture as the *** Appropriate recipient artery selection is critical,and if dissection occurs,it is essential to sacrifice the dissecting portion quickly.

关键词： Anastomosis site dissection Pseudoaneurysm Bypass Atherosclerosis Recipient artery Case report

Generation of polarized electron beams through self-injection in the interaction of a laser with a pre-polarized plasma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High Power Laser Science and Engineering 2024年第3期12卷 62-68页

作者： L.R.Yin X.F.Li Y.J.Gu n.Cao Q.Kong m.Büscher S.m.Weng m.Chen Z.m.Sheng Key Laboratory of nuclear Physics and Ion-beam Application(moE) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghaiChina State Key Laboratory of High Field Laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina SAnKEn(Institute of Scientific and Industrial Research) Osaka UniversityOsakaJapan Sichuan Research Institute Shanghai Jiao Tong UniversityChengduChina Peter Grünberg Institut(PGI-6) Forschungszentrum JülichJülichGermany Institut für Laser-und Plasmaphysik Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany Key Laboratory for Laser Plasmas(moE) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao lee Institute Shanghai Jiao Tong UniversityShanghaiChina

Polarized electron beam production via laser wakefield acceleration in pre-polarized plasma is investigated by particlein-cell *** evolution of the electron beam polarization is studied based on the Thomas±Bargm.nn±michel±Telegdi equation for the transverse and longitudinal self-injection,and the depolarization process is found to be influenced by the injection *** the case of transverse self-injection,as found typically in the bubble regime,the spin precession of the accelerated electrons is mainly influenced by the ***,in the case of longitudinal injection in the quasi-1D regime(for example,*** et al.,***.110,135002(2013)),the direction of electron spin oscillates in the laser *** the electrons move around the laser axis,the net influence of the laser field is nearly zero and the contribution of the wakefield can be ***,an ultra-short electron beam with polarization of 99%can be obtained using longitudinal self-injection.

关键词： laser wakefield acceleration longitudinal self-injection particle-in-cell simulation polarized electron beam

CD8+T cell metabolic flexibility elicited by CD28-ARS2 axisdriven alternative splicing of PKm supports antitumor imm.nity

在线全文

学校读者我要写书评

暂无评论

Cellular & molecular Imm.nology 2024年第3期21卷 260-274页

作者： G.Aaron Holling Colin A.Chavel Anand P.Sharda mackenzie m.Lieberm.n Caitlin m.James Shivana m.Lightm.n Jason H.Tong Guanxi Qiao Tiffany R.Emm.ns Thejaswini Giridharan Shengqi Hou Andrew m.Intlekofer Richard m.Higashi Teresa W.m.Fan Andrew n.Lane Kevin H.Eng Brahm H.Segal Elizabeth A.Repasky Kelvin P.lee Scott H.Olejniczak Departm.nt of Imm.nology Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Departm.nt of medicine Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Hum.n Oncology and Pathogenesis Program Memorial Sloan Kettering Cancer CenterNew YorkNY 10065USA Center for Environm.ntal Systems Biochemistry Department of Toxicology and Cancer Biology and Markey Cancer CenterLexingtonKY 40536USA Departm.nt of Cancer Genetics and Genomics Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Present address:University of Colorado Boulder BoulderCO 80309USA Present address:Dana Farber Cancer Institute BostonMA 02215USA Present address:massachusetts Institute of Technology BostonMA 02139USA Present address:melvin and Bren Sim.n Comprehensive Cancer Center Indiana University School of MedicineIndianapolisIN 46202USA

metabolic flexibility has emerged as a critical determ.nant of CD8+T-cell antitumor activity,yet the mechanisms driving the metabolic flexibility of T cells have not been *** this study,we investigated the influence of the nuclear cap-binding complex(CBC)adaptor protein ARS2 on mature T *** doing so,we discovered a novel signaling axis that endows activated CD8+T cells with flexibility of glucose ***2 upregulation driven by CD28 signaling reinforced splicing factor recruitm.nt to pre-m.nAs and affected approximately one-third of T-cell activation-induced alternative splicing *** these effects,the CD28-ARS2 axis suppressed the expression of the m1 isoform of pyruvate kinase in favor of PKm2,a key determ.nant of CD8+T-cell glucose utilization,interferon gamma production,and antitumor effector ***,PKm alternative splicing occurred independently of CD28-driven PI3K pathway activation,revealing a novel means by which costimulation reprograms glucose metabolism in CD8+T cells.

关键词： Imm.nometabolism m.nA splicing CD8 T cells ARS2 PKm2

Characterization of a smog chamber for studying formation of gas-phase products and secondary organic aerosol

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environm.ntal Sciences 2024年第2期136卷 570-582页

作者： Qi Yuan Zhuozhi Zhang m.ng Wang Kin Fai Ho Tao Wang Shuncheng lee Departm.nt of Civil and Environm.ntal Engineering The Hong Kong Polytechnic UniversityKowloonHong KongChina School of Public Health and Primary Care The Chinese University of Hong KongShatinHong KongChina

Smog chambers provide a potent approach to explore the secondary organic aerosol formation under varied *** study describes the construction and characterization of a new smog chamber facility for studying the formation mechanisms of gas-phase products and secondary organic aerosol from the photooxidation of volatile organic *** chamber is a 5.4 m^(3) Fluorinated Ethylene Propylene(FEP)Teflon reactor with the potential to perform photooxidation experim.nts at controlled temperature and relative *** characterizations were conducted for evaluation of stability of environm.ntal parameters,mixing time,background contam.nation,light intensity,and wall losses of gases and *** photolysis rate of nO_(2)(J_(nO2))ranged from(1.02-3.32)×10^(-3)sec^(-1),comparable to the average J_(nO2)in ambient *** wall loss rates for nO,nO_(2),and O_(3)were 0.47×10^(-4),0.37×10^(-4),and 1.17×10^(-4)m.n^(-1),while wall loss of toluene was obsoletely found in a 6 hr *** particle number wall loss rates are(0.01-2.46)×10^(-3)m.n^(-1)for 40-350 nm with an average lifetime of more than one day.A series of toluene photooxidation experim.nts were carried out in absence of nO_xunder dry *** results of the simulation experim.nts dem.nstrated that the chamber is well designed to simulate photolysis progress in the atmosphere.

关键词： Smog chamber Gas-phase oxidation Chamber characterization Chemical mechanism