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世界核心医学期刊文摘（眼科学分册） 2005年第7期1卷 44-45页

作者： Tsina E.K. lane a.m. Zacks D.N. E.S. Gragoudas 陈立军 Retina Service Massachusetts Eye and Ear In- firmary 243 Charles Street Boston MA 02114 United States

Objective: To describe the clinical outcomes of patients treated by proton beam irradiation for choroidal metastatic tumors. Design: Noncomparative case series. Participants: A retrospective chart review was performed on a series of 63 patients (76 eyes) with choroidal metastases treated with proton beam therapy between December 1989 and September 2000. methods:Patients were treated with 2 fractions of 14 cobalt gray equivalents (CGEs) (CGE=proton Gy x relative biological effectiveness 1.1), each using a nonoperative “ light- field” technique. Ophtha.m.logic follow- up was available for 46 patients (55 eyes), with a.m.an follow- up time of 10 months. The medical record or the Social Security Death Index was used to obtain survival status, which was available in 94% of cases. main Outcome measures: Tumor regression, recurrence, trea.m.nt associated complications, and visual acuity were evaluated by ophtha.m.logic examination and ultrasonography. Eye retention and length of survival also were assessed. Results: At the time of ocular diagnosis,49 patients reported a history of a primary cancer. median survival time after ocular diagnosis was 16 months through may 2003. most choroidal metastases were dome shaped (62% ) and located at the posterior pole (95% ). mean tumor height was approximately 3.5 mm, and serous retinal detachment was seen in 63% of cases. Eighty- four percent of treated tumors regressed completely with in 5 months of trea.m.nt, and none of these recurred. Retinal detachment resolved in 82% of patients within 3.8 months after trea.m.nt, and visual acuity was preserved or improved in 47% of the patients. Complications occurred in 56% of cases and included madarosis, keratitis, dry eye syndrome, cataract, neovascular glaucoma, chorioretinal atrophy, radiation papillopathy, and radiation maculopathy. None of the treated eyes required enucleation. Conclusions: Proton beam irradiation is a useful therapeutic approach for choroidal metastases; it allows ret

关键词：放射治疗质子束脉络膜萎缩睫毛脱落眼球摘除术黄斑病变眼科检查视网膜脱离平均存活时间手术定位

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Genotypic effects on accelerated propagation of oil pa.m.breeding materials selected(Elaeis guineensis jacq.)using somatic embryogenesis

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Oil Crop Science 2024年第2期9卷 111-120页

作者： Retno Puji Astari moha.m.d Basyuni Luthfi a.m. Siregar Revandy I.m. Damanike Deni Arifiyanto Dadang Affandi Indra Syahputra Doctoral Program of Agricultural Sciences Faculty of AgricultureUniversitas Sumatera UtaraMedan20155North SumatraIndonesia PT.Socfin Indonesia Jl.K.L.Yos Sudarso No.106Medan20244North SumatraIndonesia Department of Forestry Faculty of ForestryUniversitas Sumatera UtaraJl.Tri Dharma Ujung No.1Medan20155North SumatraIndonesia Center of Excellence for mangrove Universitas Sumatera UtaraMedan20155Indonesia Department of Agrotechnology Faculty of AgricultureUniversitas Sumatera UtaraMedan20155North SumatraIndonesia

Vegetable oil production from oil pa.m.Elaeis guineensis Jacq.)is an important industry due to the rising demand every *** somatic embryogenesis culture can propagate oil pa.m.duplicate as parent plant,which can be selected as breeding material to produce new planting germpla.m.with high production or disease *** study a.m. to evaluate the genotypic effect of somatic embryogenesis,while immature leaflets were employed as *** culture used embryo induction medium based on murashige and Skoog(mS)modifications that contained 5 mg/L Naphthalene Acetic acid(NAA)and 0.5 mg/L Benzyl Amino Purine(BAP).The genotypic effect was statistically significant in the percentage of callus induction,producing somatic embryos,and germination *** this study,we successfully cloned thirteen oil pa.m.genotypes(GE-02,GE-03,GE-06,GE-07,GE-09,GE-23,GE-24,GE-27,GE-28,GE-32,GE-33,GE-34,and GE-35),with the highest number of somatic embryos formed on GE-27 with a percentage of 70.1%.The cloning was successful in accelerating the propagation of oil pa.m.for materials breeding programs to create new varieties with high production and disease *** is necessary to observation the performance of these clones in the field in terms of mantle flower appearance.

关键词： Somatic embryogenesis Oil palm Genotypic effect Support breeding

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Enhancing cotton resilience to challenging climates through genetic modifications

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Journal of Cotton Research 2024年第2期7卷 196-206页

作者： a.m.D Ali Ijaz KHAN Azeem Iqbal NEGm mohamed a.m. IQBAL Rida AZHAR muha.m.d Tehseen KHAN Sultan Habibullah RANA Iqrar a.m.d Department of Plant Breeding and Genetics University of AgricultureFaisalabadFaisalabad 38000Pakistan Cotton Research Institute-Giza GizaEgypt Centre for Advanced Studies in Agriculture and Food Security University of AgricultureFaisalabadFaisalabad 38000Pakistan Centre of Agricultural Biochemistry and Biotechnology University of AgricultureFaisalabadFaisalabad 38000Pakistan School of Agriculture Sciences Zhengzhou UniversityZhengzhou 450000China

Cotton is one of the most important fiber crops that plays a vital role in the textile *** production has been unstable over the years due to climate change induced biotic stresses such as insects,diseases,and weeds,as well as abiotic stresses including drought,salinity,heat,and *** breeding methods have been used to breed climate resilient cotton,but it requires a considerable amount of time to enhance crop tolerance to insect pests and changing climatic conditions.A promising strategy for improving tolerance against these stresses is genetic *** review article discusses the role of genetic engineering in cotton *** essential concepts and techniques include genome editing via clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein 9(CRISPR-Cas9),overexpression of target genes,downregulation using RNA interference(RNAi),and virus-induced gene silencing(VIGS).Notably,the Agrobacterium-mediated transformation has made significant contributions to using these techniques for obtaining stable transgenic plants.

关键词： Cotton Genome editing Drought Salinity Heat

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

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Cellular & molecular Immunology 2024年第3期21卷 260-274页

作者： G.Aaron Holling Colin A.Chavel Anand P.Sharda.m.ckenzie m.Lieberman Caitlin m.James Shivana.m.Lightman Jason H.Tong Guanxi Qiao Tiffany R.Emmons Thejaswini Giridharan Shengqi Hou Andrew m.Intlekofer Richard m.Higashi Teresa W.m.Fan Andrew N.lane Kevin H.Eng Bra.m.H.Segal Elizabeth A.Repasky Kelvin P.Lee Scott H.Olejniczak Department of Immunology Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Department of medicine Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Human Oncology and Pathogenesis Program Memorial Sloan Kettering Cancer CenterNew YorkNY 10065USA Center for Environmental Systems Biochemistry Department of Toxicology and Cancer Biology and Markey Cancer CenterLexingtonKY 40536USA Department 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 Simon Comprehensive Cancer Center Indiana University School of MedicineIndianapolisIN 46202USA

metabolic flexibility has emerged as a critical determinant 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 recruitment to pre-mRNAs 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 determinant of CD8+T-cell glucose utilization,interferon ga.m. 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： Immunometabolism mRNA splicing CD8 T cells ARS2 PKm2

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Association between Exposure to metals during Pregnancy,Childhood Gut microbiome,and Risk of Intestinal Infla.m.tion in Late Childhood

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Environment & Health 2024年第10期2卷 739-749页

作者： Vishal midya.m.nasi Agrawal Jamil m.lane Chris Gennings Leonid Tarassishin Libni A.Torres-Olascoaga Joseph Eggers Jill K.Gregory mellissa Picker Inga Peter Jeremiah J.Faith manish Arora.m.rtha.m.Tellez-Rojo Robert O.Wright Jean-Frederic Colombel Shoshannah Eggers Department of Environmental medicine and Climate Science Icahn School of Medicine at Mount SinaiNew York 10029-6574New YorkUnited States Division of Gastroenterology Icahn School of Medicine at Mount SinaiNew York 10029-6574New YorkUnited States Center for molecular Prediction of Infla.m.tory Bowel Disease(PREDICT) Department of Clinical MedicineAalborg UniversityCopenhagen 9220Denmark Department of Genetics and Genomic Sciences Icahn School of MedicineNew York 10029-6574New YorkUnited States Center for Research on Nutrition and Health National Institute of Public HealthCuernavaca 62508Mexico Department of Immunology and Immunotherapy Icahn School of Medicine at Mount SinaiNew York 10029-6574New YorkUnited States Department of Epidemiology University of Iowa College of Public HealthIowa City 52242 IowaUnited States Instructional Technology Group Icahn School of Medicine at Mount SinaiNew York 10029-6574New YorkUnited States

Alterations to the gut microbiome and exposure to metals during pregnancy have been suggested to impact infla.m.tory bowel ***,how prenatal exposure to metals eventually results in long-term effects on the gut microbiome,leading to subclinical intestinal infla.m.tion,particularly during late childhood,has not been *** is also unknown whether such an interactive effect drives a specific subgroup of children toward elevated susceptibility to intestinal *** used an amalgamation of machine-learning techniques with a regression-based framework to explore if children with distinct sets of gut microbes and certain patterns of exposure to metals during pregnancy(metal−microbial clique signature)had a higher likelihood of intestinal infla.m.tion,measured based on fecal calprotectin(FC)in late *** obtained samples from a well-characterized longitudinal birth cohort from mexico City(n=108),*** the second and third trimesters of pregnancy,11 metals were measured in whole *** microbial abundances and FC were measured in stool samples from children 9−11 years of *** FC was defined as having FC above 100μg/g of *** identified subgroups of children in whom microbial and metal−microbial clique signatures were associated with elevated FC(false discovery rate(FDR)metal−microbial clique signatures significantly associated with elevated FC:(1)low cesium(Cs)and copper(Cu)in the third trimester and low relative abundance of Eubacterium ventriosum(OR[95%CI]:10.27[3.57,29.52],FDRmester and high relative abundances of Roseburia inulinivorans and Ruminococcus torques(OR[95%CI]:7.21[1.81,28.77],FDRmonstrates that children with specific gut microbes and specific exposure patterns to metals during pregnancy may have higher fecal calprotectin levels in late childhood,denoting an elevated risk of intestinal infla.m.tion.

关键词： exposome metals machine learning microbiome environmental epidemiology intestinal infla.m.tion

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Influence of cerium ions on structure-dependent magnetic properties of Ba-Sr m-type hexaferrite nanocrystals

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Journal of Rare Earths 2024年第2期42卷 364-372,I0005页

作者： Ram A.Pawar Sunil m.Patange P.m.Dighe Sher Singh meena Abdullah GAl-Sehemi mehboobali Pannipara Santosh S.Jadhav Department of Physics ArtsCommerce and Science CollegeAhmednagar413711MaharashtraIndia Department of Physics Shri Krishna MahavidyalayaGunjotiDistOsmanabad413606MaharashtraIndia Pa.m.shri Vikhe Patil College of Arts Science and CommercePravaranagarA/P.Loni(Kd)Tal.RahataDistAhmednagar413713MaharashtraIndia Solid State Physics Division Bhabha Atomic Research CentreMumbai400085MaharashtraIndia Department of Chemistry King Khalid UniversityAbha61413Saudi Arabia Department of Physics D.S.M's ArtsCommerce and Science CollegeJintur431509MaharashtraIndia

The present study is a systematic effort to investigate the structure-sensitive magnetic parameters of Ce^(3+) substituted Ba-Sr hexaferrite nanocrystals chemically formulated as Ba_(0.5)Sr_(0.5)Ce_(x)Fe_(12-x)O_(19) where x=0.0-0.2 with Δx=*** hexaferrite powders were prepared using the sol-gel self-ignition route and structurally characterized by means of powder X-ray diffraction and Fourier transform infrared *** creation of the m-type hexaferrite phase within the synthesized samples was revealed from the Rietveld refinement of the X-ray *** occurrence of a secondary phase of CeO_(2) was revealed within the hexaferrites for the substitution,x> *** refined X-ray diffraction data were utilized to compute the lattice parameters,X-ray density,and lattice parameter *** crystal structure plotted from the refined XRD data reveals the occupancy of the ions at different lattice *** XPS data of the hexaferrite were analyzed to confirm the oxidation states of the constituent *** nanocrystalline nature of the hexaferrites was revealed from the crystallite sizes calculated using Scherer's *** analysis of FTIR spectra confirms that only a fraction of Ce^(3+)accommodated in the lattice and the remaining Ce content reside in the form of the CeO_(2) *** morphology of the hexaferrites was analyzed from the FESEm profiles of the ferrite *** magnetic behavior study was performed by analyzing the Curie temperature,hysteresis loops,and hyperfine interactions by means of susceptibility,V.S.m,and mossbauer spectroscopy,*** hexaferrites with increasing coercivity,decreasing saturation magnetization,and decreasing Curie temperature are reported in the *** substituted Ce^(3+)ions inhibit the grain growth and create lattice imperfections giving rise to hexaferrites with tuned magnetic parameters suitable for different applications.

关键词： Ba-Sr hexaferrite Ce^(3+)substitution XPS Saturation magnetization Coercivity m?ssbauer spectroscopy

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Frequency-dependent viscoelasticity effects on the wave attenuation performance of multi-layered periodic foundations

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Applied mathematics and mechanics(English Edition) 2024年第3期45卷 407-424页

作者： m.SAFI m.VAKILIFARD m.J.ma.m.ODI Faculty of Civil Water&Environmental EngineeringShahid Beheshti UniversityTehran ***Iran Faculty of mechanical and Energy Engineering Shahid Beheshti UniversityTehran ***Iran

In this paper,layered periodic foundations(LPFs)are numerically examined for their responses to longitudinal and transverse modes in the time and frequency *** different unit-cells,i.e.,2-layer,4-layer,and 6-layer unit-cells,comprising concrete/rubber,concrete/rubber/steel/rubber,and concrete/rubber/steel/rubber/lead/rubber materials,respectively,are taken into ***,the viscoelasticity behavior of the rubber is modeled with two factors,i.e.,a frequency-independent(FI)loss factor and a linear frequency-dependent(FD)loss *** the extraction of the complex dispersion curves and the identification of the band gaps(BGs),the simulations of wave transmission in the time and frequency domains are performed using the COmSOL *** parametric studies evaluate the effects of the rubber viscoelasticity models on the dispersion curves and the wave transmission for the longitudinal and transverse *** results show that considering the rubber viscoelasticity enhances the wave attenuation ***,the transverse-mode damping is more sensitive to the viscoelasticity model than its longitudinal *** 6-layer unit-cell LPF exhibits the lowest BG,ranging from 4.8 Hz to 6.5 Hz.

关键词： layered metamaterial periodic foundation complex dispersion curve wave transmission diagram

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Engineering of efficient visible light photocatalysts:Ti_(1-x+y)Cu_(x)La_(y)O_(2)(x=0.03;y=0,0.005,0.01) compositions

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Journal of Rare Earths 2024年第3期42卷 497-505,I0003页

作者： S.m.Yakout a.m.Youssef Inorganic Chemistry Department National Research Centre(NRC)El Buhouth StDokkiCairo12622Egypt

In dye-photocatalysis, widening the wavelengths absorption range of catalysts as well as aborting the recombination of the photoexcited charge carriers(electrons-holes pairs) are of paramount *** the current study, we report the photocatalytic characteristics of four compositions composed of TiO_(2),Ti_(0.97)Cu_(0.03)O_(2), Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders for two ha.m.ul dyes(Congo red and methylene blue). The X-ray diffraction technique verified the configuration of mixed anatase and rutile phases in pure TiO_(2)and Ti_(0.97)Cu_(0.03)O_(2)powders while Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders possess anatase phase only. The changes of the band gap structure and dimensions of the unit cell volume of TiO_(2)confirm the substitution of Ti^(4+)sites by Cu^(2+)and La^(3+)ions. Remarkable widening of wavelengths absorption with formation of long absorption tails were found in TiO_(2)(3.13 e V) through insertion of La^(3+)plus Cu^(2+)ions. Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)samples exhibit a visible light band gap of 2.3 and 2.7 e V, respectively. Based on SEm images, incorporation of Cu^(2+)and La^(3+)ions influences the surface morphology of TiO_(2). The resulting Ti_(0.97)Cu_(0.03)O_(2), Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders present enhanced photocatalytic activity towards Congo red dye degradation compared to pure one under natural solar spectrum. The best Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)catalyst exhibits superior photocatalytic activity of 96% for 10 ppm CR dye in 20 min as well as above average photocatalytic efficiency of 63% for 30 ppm CR dye in 120 min. As well, it showed acceptable photodegradation activity of 52% for 30 ppm mB solution in 140 min of sunlight irradiation. The heightened photodegradation efficiency of Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)catalyst can be clarified in terms of higher ch

关键词： Semiconductor TiO_(2) Rare earths Congo red methylene blue Solar spectrum Photodegradation

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Nonlinear dynamic modeling of planar moving Timoshenko beam considering non-rigid non-elastic axial effects

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Applied mathematics and mechanics(English Edition) 2024年第3期45卷 479-496页

作者： m.ABBASI GAVARI m.R.HOmAEINEZHAD Faculty of mechanical Engineering K.N.Toosi University of TechnologyTehran 19991-43344Iran

Due to the importance of vibration effects on the functional accuracy of mechanical systems,this research a.m. to develop a precise model of a nonlinearly vibrating single-link mobile flexible *** manipulator consists of an elastic a.m.a rotary motor,and a rigid carrier,and undergoes general in-plane rigid body motion along with elastic transverse *** accurately model the elastic behavior,Timoshenko’s beam theory is used to describe the flexible a.m.which accounts for rotary inertia and shear deformation *** applying Newton’s second law,the nonlinear governing equations of motion for the manipulator are derived as a coupled system of ordinary differential equations(ODEs)and partial differential equations(PDEs).Then,the assumed mode method(a.m.is used to solve this nonlinear system of governing equations with appropriate shape *** assumed modes can be obtained after solving the characteristic equation of a Timoshenko beam with clamped boundary conditions at one end and an attached mass/inertia at the *** addition,the effect of the transverse vibration of the inextensible a.m.on its axial behavior is *** the axial rigidity,the effect makes the rigid body dynamics invalid for the axial behavior of the ***,numerical simulations are conducted to evaluate the performance of the developed model,and the results are compared with those obtained by the finite element *** comparison confirms the validity of the proposed dynamic model for the *** to the mentioned features,this model can be reliable for investigating the system’s vibrational behavior and implementing vibration control algorithms.

关键词： planar moving Timoshenko beam non-rigid non-elastic axial effect as-sumed mode method(a.m. nonlinear motion analysis

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Free vibration and buckling analysis of polymeric composite beams reinforced by functionally graded bamboo fbers

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Applied mathematics and mechanics(English Edition) 2024年第3期45卷 543-562页

作者： H.m.FEIZABAD m.H.YAS Department of mechanical Engineering Razi UniversityKermanshah ***Iran

Natural fibers have been extensively researched as reinforcement materials in polymers on account of their environmental and economic advantages in comparison with synthetic fibers in the recent *** fibers are renowned for their good mechanical properties,abundance,and short cycle *** beams are one of the fundamental structural components and are susceptible to mechanical loads in engineering applications,this paper performs a study on the free vibration and buckling responses of bamboo fiber reinforced composite(BFRC)beams on the elastic *** different functionally graded(FG)layouts and a uniform one are the considered distributions for unidirectional long bamboo fibers across the *** elastic properties of the composite are determined with the law of *** Hamilton’s principle,the governing equations of motion are *** generalized differential quadrature method(GDQm)is then applied to the equations to obtain the *** achieved outcomes exhibit that the natural frequency and buckling load values vary as the fiber volume fractions and distributions,elastic foundation stiffness values,and boundary conditions(BCs)and slenderness ratio of the beam ***,a comparative study is conducted between the derived analysis outcomes for BFRC and homogenous polymer beams to examine the effectiveness of bamboo fibers as reinforcement materials,demonstrating the significant enhancements in both vibration and buckling responses,with the exception of natural frequencies for cantilever beams on the Pasternak foundation with the FG-◇fiber ***,the obtained analysis results of BFRC beams are also compared with those for carbon nanotube reinforced composite(CNTRC)beams found in the literature,indicating that the buckling loads and natural frequencies of BFRC beams are lower than those of CNTRC beams.

关键词： bamboo fiber free vibration buckling analysis functionally graded(FG)beam elastic foundation generalized differential quadrature method(GDQm)

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