检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 97-104页

作者： m.hai A.Bentan Evan R.Reiter richard m.Costanzo Daniel H.Coelho Departm.nt of Otolaryngology-Head&Neck Surgery Virginia Commonwealth University School of MedicineRichmondVirginiaUSA

Objective:The aim.of this study was to review findings from.a large prospective national database of chem.sensory disturbances associated with coronavirus disease 2019(COVID-19)*** Sources:The Virginia Com.onwealth University Sm.ll and Taste Center national database of COVID-19 chem.sensory ***:A series of online surveys,first opened on April 10,2020,was m.de accessible nationwide to any adult with sudden chem.sensory dysfunction since January *** received subsequent follow-up surveys 14 days,1 m.nth,3 m.nths,and 6 m.nths after *** additional survey was sent to all participants on m.y 28,2022 to assess long-term.*** pertaining to dem.graphics,sym.tom.,com.rbidities,treatm.nts,and life im.act was ***:Of 363 participants who reported com.lete sm.ll recovery,51.2%recovered within 1 m.nth,70%within 3 m.nths,and 79%within 6 m.nths,while 8.8%took over 1 year to com.letely *** all participants,7.5%had no sm.ll *** predictors of recovery included agem.le gender,and the presence of nasal *** predictors included difficulty breathing and prior head *** participants reported a decrease in quality of life and the presence of potential safety hazards associated with decreased sm.ll ***:m.st subjects with COVID-19-related chem.sensory dysfunction recover,with the m.jority noting com.lete recovery within weeks of *** aged over 40 years and fem.le gender were associated with lower rates of recovery.A considerable num.er of participants reported significant im.act on quality of life and safety.

关键词： anosm.a COVID-19 sm.ll

Dual-Fields Rotational Total Skin Electron Therapy: Investigation and Im.lem.ntation

在线全文

学校读者我要写书评

暂无评论

International Journal of m.dical Physics, Clinical Engineering and Radiation Oncology 2024年第1期13卷 1-15页

作者： m. m.ng Xu Iris Rusu richard P. Garza Northwestern m.dicine Cancer Center Warrenville and Geneva Illinois USA Departm.nt of Radiation Oncology Loyola University Medical Center Maywood Illinois USA The Austin Center for Radiation Oncology Austin Texas USA

Purpose: To present a protocol of a dual-field rotational (DFR) total skin electron therapy (TSET) and to provide an assessm.nt of clinical im.lem.ntation, dosim.try properties, and skin dose evaluation. m.thods and m.terials: The DFR-TSET com.ined the Stanford 6-field and m.Gill rotational m.thods. Dual 6 m.V electron beam. in high dose total skin electron m.de were used for DFR-TSET on a com.ercial linac. Beam.profiles and dosim.tric properties were m.asured using solid phantom.. The dose rate at expanded source-to-surface distance (SSD) was a com.ination of static rate and rotational rate. In vivo dosim.try of patient skin was perform.d on patients’ skin using film. m.tal oxide sem.conductor field-effect transistors (m.SFET), and optically stim.lated lum.nescent dosim.ters (OSLD). Results: Dual field rotational total skin electron therapy exhibited good (≤±10%) uniform.ty in the beam.profiles in the vertical direction at an extended SSD of 332 cm.with a gantry angulation of ±20˚ deviated from.the horizontal direction. In-vivo m.asurem.nts confirm.d acceptable uniform.ty of the patients’ total body surfaces and revealed anatom.cally self-blocked or shielded areas where underdosing occurred. Conclusions: The clinical im.lem.ntation of DFR-TSET effectively utilizes the special m.de on a linac. This technique provides short beam.on tim.s, uniform.dose distribution, large treatm.nt field, and reduced dose of x-ray contam.nation to the patients. In-vivo m.asurem.nts indicate satisfactory delivery and dose uniform.ty of the prescribed dose. Electron boost fields are recom.ended at norm.l SSDs to address underdosed areas.

关键词： Total Skin Electron Therapy Stanford 6 Field m.Gill Rotation Therapy In-Vivo Dosim.try

Bound and Resonating m.ltiquark Configurations

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2024年第8期41卷 8-12页

作者： Jean-m.rc richard Institut de Physique des 2 Infinis de Lyon Université Claude Bernard(Lyon 1) CNRS-IN2P34 rue Enrico Fermi69622 VilleurbanneFrance

We review the predictions of quark m.dels for m.ltiquark configurations that are bound or resonant states,and com.are different m.thods for estim.ting the properties of resonances.

关键词： quark Configuration resonant

Effects of B[a]P-UVA Co-Exposure on Epigenetic m.rks of Isolated Skin Cells and Im.act of an Arundo donax L. Extract of These Changes

在线全文

学校读者我要写书评

暂无评论

Journal of Cosm.tics, Derm.tological Sciences and Applications 2024年第3期14卷 253-269页

作者： m.rie m. Dorr m.gali Favre-m.rcuret Katell Vié richard Fitoussi Laboratoires Clarins Pontoise France

Background: Extrinsic aging results from.environm.ntal stressors such as UVR or pollutants. While the effects of single pollutants are better understood, those of their com.ination rem.in poorly scrutinized. Objective: Building on a study showing downregulation of several processes upon co-exposure to B[a]P and UVA, we investigated changes induced by epigenetic m.rks. m.terials and m.thods : Hum.n prim.ry fibroblasts and HaCaT cells were exposed to B[a]P and UVA. After 24 hours, exposed and unexposed cells were com.ared to assess DNA m.thylation. Focusing on HaCaT, m.ltiplex assays enabled quantifying histone H3 m.difications and evaluating four splicing factors (SRSF1, SRSF3, SFPQ, and SF3B1) by im.unohistochem.cal labeling. The expression of keratinocyte-/fibroblast-relevant genes was assessed by RT-qPCR. Finally, the im.act of an Arundo donax L. extract added 24 hours before B[a]P-UVA co-exposure was analyzed. Results: Exposure to B[a]P-UVA raised DNA m.thylation (HaCaT: ×3.6, fibroblasts: ×1.9), an increase prevented by the extract. In HaCaT cells, B[a]P-UVA increases the frequency of S10P (+38%). When exposure was preceded by extract treatm.nt, the frequency of several m.thylations was im.acted. B[a]P-UVA only induced the expression of SRSF1 and SFPQ in HaCaT (+46% and +34%). Treatm.nt with the extract abolished this effect. Co-exposure increases the expression of inflam.ation-related genes (IL-1 α , IL-1 β ) in HaCaT cells and decreases those of AQP3, KRT15, and SOD2. The extract has little effect on these changes. In prim.ry fibroblasts, exposure to B[a]P-UVA lowered the expression of LOXL2, LUm. and TGFBR2 (−38%, −59%, and −51%, respectively), and the extract did not affect these m.difications. Conclusion: Within 24 hours, a single B[a]P-UVA co-exposure changes epigenetic m.rks of skin cells but has only m.ld effects on gene expression. An Arundo donax L. extract can prevent part of the epigenetic m.rks’ changes and could stim.late the expression of som. gen

关键词： Extrinsic Aging DNA m.thylation Histone H3 Splicing Factors Arundo donax L.

Carbon dioxide enrichm.nt affected flower num.ers transiently and increased successful post-pollination developm.nt stably but without altering final acorn production in m.ture pedunculate oak (Quercus robur L.)

维普期刊数据库评论

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 Forestry Research 2024年第4期35卷 1-12页

作者： Ryan m.Clory richard H.Ellis m.rtin Lukac Jo Clark Carolina m.yoral Kris m.Hart Andrew R.G.Plackett A.Rob m.cKenzie School of Agriculture Policy and DevelopmentUniversity of ReadingAgricultureEarley GateWhiteknights RoadPO Box 237Reading RG66EUUK Faculty of Forestry and Wood Sciences Czech University of Life Sciences PraguePrague 165000Czechia Future Trees Trust Harwell Innovation CentreBuilding 173Curie AvenueHarwellOxford OX110QGUK Birm.ngham.Institute of Forest Research University of BirminghamEdgbastonBirmingham B152TTUK School of Biosciences University of BirminghamEdgbastonBirmingham B152TTUK School of Geography Earth and Environmental SciencesUniversity of BirminghamEdgbastonBirmingham B152TTUK

Acorn production in oak(Quercus spp.)shows considerable inter-annual variation,known as m.sting,which provides a natural defence against seed predators but a highly-variable supply of acorns for uses such as in com.ercial tree planting each *** em.ssions of greenhouse gases have been very widely reported to influence plant growth and seed or fruit size and quantity via the‘fertilisation effect’that leads to enhanced *** exam.ne if acorn production in m.ture woodland com.unities will be affected by further increase in CO_(2),the contents of litter traps from.a Free Air Carbon Enrichm.nt(FACE)experim.nt in deciduous woodland in central England were analysed for num.ers of flowers and acorns of pedunculate oak(Quercus robur L.)at different stages of developm.nt and their predation levels under am.ient and elevated CO_(2) ***-annual variation in acorn num.ers was considerable and cyclical between 2015 and 2021,with the greatest num.ers of m.ture acorns in 2015,2017 and 2020 but alm.st none in *** num.ers of flowers,enlarged cups,im.ature acorns,em.ty acorn cups,and galls in the litter traps also varied am.ngst years;com.aratively high num.ers of enlarged cups were recorded in 2018,suggesting *** at this site is a fruit m.turation m.sting species(i.e.,the extent of abortion of pollinated flowers during acorn developm.nt affects m.ture acorn num.ers greatly).Raising the atm.spheric CO_(2) concentration by 150μL L^(−1),from.early 2017,increased the num.ers of im.ature acorns,and all acorn evidence(em.ty cups+im.ature acorns+m.ture acorns)detected in the litter traps com.ared to am.ient controls by 2021,but did not consistently affect the num.ers of flowers,enlarged cups,em.ty cups,or m.ture *** num.er of flowers in the elevated CO_(2) plots’litter traps was greater in 2018 than 2017,one year after CO_(2) enrichm.nt began,whereas num.ers declined in am.ient *** with CO_(2) also increased the num.er o

关键词： Quercus robur L. Acorns m.sting Pedunculate oak Carbon dioxide

Biofabrication of nanocom.osite-based scaffolds containing hum.n bone extracellularm.trix for the differentiation of skeletal stem.and progenitor cells

在线全文

学校读者我要写书评

暂无评论

Bio-Design and m.nufacturing 2024年第2期7卷 121-136页

作者： Yang-Hee Kim.Janos m.Kanczler Stuart Lanham.Andrew Rawlings m.rta Roldo Gianluca Tozzi Jonathan I.Dawson Gianluca Cidonio richard O.C.Oreffo Faculty of m.dicine Bone and Joint Research GroupCentre for Human DevelopmentStem Cells and RegenerationInstitute of Developmental SciencesUniversity of SouthamptonSouthampton SO166YDUK School of Pharm.cy and Biom.dical Science University of PortsmouthPortsmouth PO12DTUK School of Engineering Faculty of Engineering and ScienceUniversity of GreenwichGreenwich ME44TBUK Center for Life Nano-and Neuro-Science(CLN2S) Italian Institute of Technology00161 RomeItaly

Autograft or m.tal im.lants are routinely used in skeletal ***,they fail to provide long-term.clinical resolution,necessitating a functional biom.m.tic tissue engineering *** use of native hum.n bone tissue for synthesizing a biom.m.ticm.terial inkfor three-dim.nsional(3D)bioprintingof skeletal tissueis anattractivestrategyfor ***,hum.n bone extracellular m.trix(bone-ECm.offers an exciting potential for the developm.nt of an appropriate m.croenvironm.nt for hum.n bone m.rrow strom.l cells(HBm.Cs)to proliferate and differentiate along the osteogenic *** this study,we engineered a novel m.terial ink(LAB)by blending hum.n bone-ECm.B)with nanoclay(L,Laponite®)and alginate(A)polym.rs using extrusion-based *** inclusion of the nanoﬁller and polym.ric m.terial increased the rheology,printability,and drug retention properties and,critically,the preservation of HBm.Cs viability upon *** com.osite of hum.n bone-ECm.based 3D constructs containing vascular endothelial growth factor(VEGF)enhanced vascularization after im.lantation in an ex vivo chick chorioallantoic m.m.rane(CAm.*** inclusion of bone m.rphogenetic protein-2(Bm.-2)with the HBm.Cs further enhanced vascularization and m.neralization after only seven *** study dem.nstrates the synergistic com.ination of nanoclay with biom.m.tic m.terials(alginate and bone-ECm.to support the form.tion of osteogenic tissue both in vitro and ex vivo and offers a prom.sing novel 3D bioprinting approach to personalized skeletal tissue repair.

关键词： Extracellular m.trix Nanoclay Bone 3D bioprinting

International financial m.rkets : : prices and policies / richard m. Levich. 2nd ed.

在线全文

学校读者我要写书评

暂无评论

Wildfire severity alters soil m.crobial exoenzym. production and fungal abundances in the southern Appalachian m.untains

2001年

作者： Levich richard m.

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

Pedosphere 2024年第05期 865-878页

作者： m.gan L.SCHILL richard BAIRD Shawn P.BROWN Allison m.VEACH Departm.nt of Integrative Biology University of Texas at San Antonio Biochem.stry Molecular Biology Entomology and Plant Pathology Department Mississippi State University Departm.nt of Biological Sciences The University of Memphis

Clim.te change has increased drought frequency and duration that are exacerbated by increased tem.eratures globally. This effect has, and will continue,to increase fire occurrence across m.ny regions of North Am.rica. In the southern Appalachian m.untains, wildfires with high burn severity occurred in 2016due to increased drought and hum.n activity. To investigate the effects of burn severity on soil physicochem.cal properties, m.crobial extracellular enzym. production, and m.crobial abundances in a tem.erate region, surface soils (0–15 cm. were collected from.two sites (the Great Sm.ky m.untains National Park in Tennessee and the Nantahala National Forest in North Carolina, USA) spanning lightly, m.derately, and severely burned areas, accom.anied by adjacent unburned locations that act as controls. The soil sam.les were collected at three tim. points between 2017 and 2019 (i.e., 0.5, 1, and 2.5 years post-fire)am.ng burn severity plots. Total hydrolytic enzym. production varied over tim., with severe burn plots having significantly lower enzym. production at 2.5years post-fire. Individual enzym.s varied am.ng burn severities and across tim. post-fire. Light burn plots showed greater carbon-specific (β-glucosidase and β-xylosidase) and phosphorus-specific (acid phosphatase) enzym. activities at 0.5 years post-fire, but this effect was transient. At 2.5 years post-fire, theβ-xylosidase and acid phosphatase activities were lower in severe or m.derate burn plots relative to the controls. In contrast, the activity of nitrogen-specific enzym. leucyl am.nopeptidase was the lowest in severe burn plots at 0.5 years post-fire, but was the lowest in light burn plots at 2.5 years post-fire. The fungi:bacteria ratio declined with burn severity, indicating that fungi are sensitive or less resilient to high burn severity during recovery. These results suggest that wildfires alter trajectories for soil m.crobial structure and function within a 2.5-year tim.fram., which potentially

关键词：

COVID-19 vaccination produces exercise-responsive SARS-CoV-2 specific T-cells regardless of infection history

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2024年第1期13卷 99-107页

作者： Kyle A.Sm.th Tiffany m.Zúñiga Forrest L.Baker Helena Batatinha Charles R.Pedlar Shane C.Burgess m.chael P.Gustafson Em.anuel Katsanis richard J.Sim.son School of Nutritional Sciences and Wellness The University of ArizonaTucsonAZ 85721USA Departm.nt of Pediatrics The University of ArizonaTucsonAZ 85724USA Faculty of Sport Allied Health and Performance ScienceSt.Mary's UniversityTwickenham TW14SXUK Institute of Sport Exercise and Health University College LondonLondon WC1E 7HUUK Departm.nt of Anim.l and Com.arative Biom.dical Sciences The University of ArizonaTucsonAZ 85721USA The University of Arizona Cancer Center The University of ArizonaTucsonAZ 85719USA Laboratory m.dicine and Pathology Mayo Clinic ArizonaPhoenixAZ 85054USA Departm.nt of Im.unobiology The University of ArizonaTucsonAZ 85724USA Departm.nt of m.dicine The University of ArizonaTucsonAZ 85724USA Departm.nt of Pathology The University of ArizonaTucsonAZ 85724USA

Background:The m.bilization and redistribution of severe acute respiratory syndrom. coronavirus 2(SARS-CoV-2)specific T-cells and neutralizing antibodies(nAbs)during exercise is purported to increase im.une surveillance and protect against severe coronavirus disease 2019(COVID-19).We sought to determ.ne if COVID-19 vaccination would elicit exercise-responsive SARS-CoV-2 T-cells and transiently alter nAb ***:Eighteen healthy participants com.leted a 20-m.n bout of graded cycling exercise before and/or after receiving a COVID-19 *** m.jor leukocyte subtypes were enum.rated before,during,and after exercise by flow cytom.try,and im.une responses to SARS-CoV-2 were determ.ned using whole blood peptide stim.lation assays,T-cell receptor(TCR)-βsequencing,and SARS-CoV-2 nAb ***:COVID-19 vaccination had no effect on the m.bilization or egress of m.jor leukocyte subsets in response to intensity-controlled graded ***,non-infected participants had a significantly reduced m.bilization of CD4+and CD8+naive T-cells,as well as CD4+central m.m.ry T-cells,after vaccination(synthetic im.unity group);this was not seen after vaccination in those with prior SARS-CoV-2 infection(hybrid im.unity group).Acute exercise after vaccination robustly m.bilized SARS-CoV-2 specific T-cells to blood in an intensity-dependent *** groups m.bilized T-cells that reacted to spike protein;however,only the hybrid im.unity group m.bilized T-cells that reacted to m.m.rane and nucleocapsid *** increased significantly during exercise only in the hybrid im.unity ***:These data indicate that acute exercise m.bilizes SARS-CoV-2 specific T-cells that recognize spike protein and increases the redistribution of nAbs in individuals with hybrid im.unity.

关键词： Anti-viral COVID-19 Exercise im.unology SARS-CoV-2 T-Cells Vaccine