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Next generation multiple access for IMT towards 2030 and beyond

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Science China(Information Sciences) 2024年第6期67卷 448-450页

作者： Zhiguo DING robert SChOBER Pingzhi FAN h.Vincent POOR Department of Computer and Information Engineering Khalifa University Department of Electrical and Electronic Engineering University of Manchester Institute for Digital Communications Friedrich Alexander-University Erlangen-Nurnberg (FAU) CSNMT International Cooperation Research Center (MoST) Southwest Jiaotong University Department of Electrical and Computer Engineering Princeton University

Multiple access techniques are fundamental to the design of wireless communication systems,since many crucial components of such systems depend on the choice of the multiple access technique[1].For example,the use of ...

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A circular single-stranded DNA mycovirus infects plants and confers broad-spectrum fungal resistance

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Molecular Plant 2024年第6期17卷 955-971页

作者： Xianhong Wang Ioly Kotta-Loizou robert h.A.Coutts huifang Deng Zhenhao han Ni hong Karim Shafik Liping Wang Yashuang Guo Mengmeng Yang Wenxing Xu Guoping Wang National Key Laboratory for Germplasm Innovation&Utilization of horticultural Crops Wuhan 430070China hubei hongshan Laboratory Wuhan 430070China College of Plant Science and Technology Huazhong Agricultural UniversityWuhan 430070China Key Lab of Plant Pathology of hubei Province Wuhan 430070China Department of Life Sciences Faculty of Natural SciencesImperial College LondonLondon SW72AZUK Department of Clinical Pharmaceutical and Biological ScienceSchool of Life and Medical SciencesUniversity of HertfordshireHatfield AL109ABUK Department of Plant Pathology Faculty of AgricultureAlexandria UniversityAlexandria 21526Egypt

Circular single-stranded DNA(ssDNA)viruses have been rarely found in fungi,and the evolutionary and ecological relationships among ssDNA viruses infecting fungi and other organisms remain *** this study,a novel circular ssDNA virus,tentatively named Diaporthe sojae circular DNA virus 1(DsCDV1),was identified in the phytopathogenic fungus Diaporthe sojae isolated from pear ***1 has a monopartite genome(3185 nt in size)encapsidated in isometric virions(21-26 nm in diameter).The genome comprises seven putative open reading frames encoding a discrete replicase(Rep)split by an intergenic region,a putative capsid protein(CP),several proteins of unknown function(P1-P4),and a long intergenic ***,the two split parts of DsCDV1 Rep share high identities with the Reps of Geminiviridae and Genomoviridae,respectively,indicating an evolutionary linkage with both *** analysis based on Rep or CP sequences placed DsCDV1 in a unique cluster,supporting the establishment of a new family,tentatively named Gegemycoviridae,intermediate to both ***1 significantly attenuates fungal growth and nearly erases fungal virulence when transfected into the host ***,DsCDV1 can systematically infect tobacco and pear seedlings,providing broad-spectrum resistance to fungal *** localization analysis revealed that DsCDV1 P3 is systematically localized in the plasmodesmata,while its expression in trans-complementation experiments could restore systematic infection of a movement-deficient plant virus,suggesting that P3 is a movement ***1 exhibits unique molecular and biological traits not observed in other ssDNA viruses,serving as a link between fungal and plant ssDNA viruses and presenting an evolutionary connection between ssDNA viruses and *** findings contribute to expanding our understanding of ssDNA virus diversity and evolution,offering potential biocontrol applications for managing crucial plant d

关键词： circular single-stranded DNA virus mycovirus virus evolution Genomoviridae Gegemycoviridae Diaporthe sojae circular DNA virus 1

Public health importance of light intensity physical activity

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Journal of Sport and health Science 2024年第5期13卷 674-675页

作者： robert Ross Ian Janssen Mark S.Tremblay School of Kinesiology and health Studies Queen’s UniversityKingstonON K7L 3N6Canada School of Medicine Division of Endocrinology and MetabolismQueen’s UniversityKingstonON K7L 3N6Canada healthy Active Living and Obesity Research Group Children’s Hospital of Eastern Ontario Research InstituteOttawaON K1H 8L1Canada Department of Pediatrics University of OttawaOttawaON K1H 8L1Canada

*** intensity physical activity(PA)benefits health PA guidelines worldwide recommend that adults accumulate 150 min of moderate intensity or 75 min of vigorous intensity PA(moderate-to-vigorous PA(MVPA))weekly to achieve health benefits.1-3 Absent from these guidelines are recommendations for light intensity PA(LPA,e.g.,walking at a leisurely pace of 3 km/h or less,equivalent to 1.5-2.9 metabolic equivalents).

关键词： intensity light benefits

Effects of soil metal(loid)s pollution on microbial activities and environmental risks in an abandoned chemical smelting site

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Journal of Environmental Sciences 2024年第9期143卷 60-70页

作者： hao Li Jun Yao Jianli Liu Ning Min Geoffrey Sunahara Dongyang Men robert Duran School of Water Resources and Environment Research Center of Environmental Science and EngineeringChina University of Geosciences(Beijing)Beijing 100083China Department of Natural Resource Sciences McGill University21111Lakeshore DriveSte-Anne-de-BellevueQuebecH9X 3V9Canada Equipe Environnement et Microbiologie MELODY groupUniversitéde Pau et des Pays de l’AdourE2S-UPPAIPREM UMR CNRS 5254BP 115564013 Pau CedexFrance

Abandoned chemical smelting sites containing toxic substances can seriously threaten and pose a risk to the surrounding ecological *** samples were collected from different depths(0 to 13 m)and analyzed for metal(loid)s content and fractionation,as well as microbial *** potential ecological risk indices for the different soil depths(ordered from high to low)were:1 m(D-1)>surface(S-0)>5 m(D-5)>13 m(D-13)>9 m(D-9),ranging between 1840.65-13,089.62,and representing extremely high environmental risks,of which Cd(and probably not arsenic)contributed to the highest environmental risk.A modified combined pollution risk index(MCR)combining total content and mobile proportion of metal(loid)s,and relative toxicities,was used to evaluate the degree of contamination and potential environmental *** the near-surface samples(S-0 and D-1 layers),the MCR considered that As,Cd,Pb,Sb,and Zn achieved high and alarming degrees of contamination,whereas Fe,Mn,and Ti were negligible or low to moderate pollution *** microcalorimetry and enzymatic activity measurements of contaminated soil samples were used to assess the microbial metabolic activity *** analysis elucidated the relationship between metal(loid)s exchangeable fraction or content and microbial activity characteristics(phe microbial metabolic activity in the D-1 layer was low presumably due to heavy metal *** activity indicators and microcalorimetric growth rate(k)measurements were considered sensitive indicators to reflect the soil microbial activities in abandoned chemical smelting sites.

关键词： Abandoned chemical smelting sites Microbial activities Modified combined pollution risk Microcalorimetry Enzymatic activities

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不同商业批次花生的黄曲霉毒素水平模拟研究

核农学报 2024年第2期38卷 336-344页

作者：陈尤佳 Panagiota h Tsatsos 张嘉玲 haydu K robert 玛氏箭牌有限公司全球科学与技术部北京101407 玛氏箭牌有限公司全球科学与技术部伊利诺伊芝加哥60642 玛氏箭牌糖果(中国)有限公司商务部广东广州510623 玛氏箭牌有限公司全球质量与食品安全部伊利诺伊芝加哥60642

为准确获知花生贸易中商业批次的黄曲霉毒素水平,本研究通过模拟应用联合国粮食及农业组织(FAO)的农业品类真菌毒素取样模型,以脱壳整粒花生批次为模拟对象,在中国、日本法规限值下,分别设置实验室样品数目、实验室样品量和接受/拒绝限... 详细信息

为准确获知花生贸易中商业批次的黄曲霉毒素水平,本研究通过模拟应用联合国粮食及农业组织(FAO)的农业品类真菌毒素取样模型,以脱壳整粒花生批次为模拟对象,在中国、日本法规限值下,分别设置实验室样品数目、实验室样品量和接受/拒绝限值,模拟每种组合超出法规限值的接收/放行概率。结果表明,在常规黄曲霉毒素风险的产季/产地下,批次能够满足>90%概率符合中国国标和日本法规的取样方案分别为:设置接受/拒绝限值为黄曲霉毒素B15~10 ng·g^(-1),实验室样品数目和样品量分别为2~3个、5~10 kg;设置接受/拒绝限值为黄曲霉毒素总量5 ng·g^(-1),实验室样品数目和样品量分别为3个、10 kg。推荐在以下3种高风险或风险不确定情景下应用此模型制订升级取样方案、调整接收限值、增强采购/销售信心:黄曲霉毒素高风险产季/产地采购;新开发的供应商/采购区域;批次超标预警时对新批次的放行,以免连续超标。本研究结果为中国花生加工/贸易企业提供了科学取样方案,进而为保障食品安全、保护企业经济利益提供了理论参考。

关键词：花生黄曲霉毒素取样模拟

Three-stage pyrolysis–steam reforming–water gas shift processing of household,commercial and industrial waste plastics for hydrogen production

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Waste Disposal and Sustainable Energy 2024年第1期6卷 25-37页

作者： Rayed Alshareef robert Sait-Stewart Mohamad A.Nahil Paul T.Williams School of Chemical and Process Engineering University of LeedsLeedsLS29JTUK

Five common single plastics and nine different household,commercial and industrial waste plastics were processed using a three-stage(i)pyrolysis,(ii)catalytic steam reforming and(iii)water gas shift reaction system to produce *** of plastics produces a range of different hydrocarbon species which are subsequently catalytically steam reformed to produce h_(2)and CO and then undergo water gas shift reaction to produce further h_(2).The process mimics the commercial process for hydrogen production from natural *** of the single polyalkene plastics(high-density polyethylene(hDPE),low-density polyethylene(LDPE),and polypropylene(PP))produced similar h_(2)yields between 115 mmol and 120 mmol per gram *** though PS produced an aromatic product slate from the pyrolysis stage,further stages of reforming and water gas shift reaction produced a gas yield and composition similar to that of the polyalkene plastics(115 mmol h_(2)per gram plastic).PET gave significantly lower h_(2)yield(41 mmol per gram plastic)due to the formation of mainly CO,CO_(2)and organic acids from the pyrolysis stage which were not conducive to further reforming and water gas shift reaction.A mixture of the single plastics typical of that found in municipal solid waste produced a h_(2)yield of 102 mmol per gram *** the gas yields and composition from the single plastics enabled an estimation of the yields from a simulated waste plastic mixture and a‘real-world’waste plastic mixture to be *** different household,commercial and industrial waste plastic mixtures produced h_(2)yields between 70 mmol and 107 mmol per gram *** h_(2)yield and gas composition from the single waste plastics gave an indication of the type of plastics in the mixed waste plastic samples.

关键词： Waste plastic hydrogen Catalyst Pyrolysis reforming Water gas shift

Coverage and determinants of infant postnatal care in Nigeria:A population-based cross-sectional study

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Pediatric Investigation 2024年第1期8卷 27-36页

作者： Bolaji Emmanuel Egbewale Olusola Oyedeji Jesse Bump Christopher robert Sudfeld Department of Global health and Population Takemi Program in International HealthHarvard T.H.Chan School of Public HealthBostonMassachusettsUSA Department of Community Medicine College of Health SciencesLadoke Akintola University of TechnologyOgbomosoNigeria Department of Pediatrics and Child health College of Health SciencesLadoke Akintola University of TechnologyOgbomosoNigeria

Importance:In 2019,Nigeria had the largest number of under-5 child deaths globally and many of these deaths occurred within the first week of *** World health Organization recommends infant postnatal care(PNC)attendance to support newborn survival;however,utilization of PNC is known to be low in many ***:This study examined coverage and individual-level determinants of infant PNC attendance in ***:Nigeria Demographic health Survey(NDhS)2018 data were used to evaluate infant PNC coverage and *** PNC was defined as receipt of care within 2 days of *** delivered up to 2 years before the 2018 NDhS were *** examined predictors of infant PNC with modified Poisson regression models to estimate relative risks(RRs).Results:The national coverage of infant PNC was 37.3%(95%confidence interval[CI]:35.8%–38.7%).Significant heterogeneity in PNC attendance existed at state and regional *** delivery was strongly associated with the uptake of PNC(RR:6.07;95%CI:5.60–6.58).Greater maternal education,maternal employment,urban residence,female head of household,and greater wealth were also associated with an increased likelihood of PNC ***:The uptake of infant PNC is low and interventions are urgently needed to promote equity in access and increase demand for PNC in Nigeria.

关键词： Infant postnatal care Epidemiology Coverage Determinants Nigeria

Coated boron layers by boronization and a real-time boron coating using an impurity powder dropper in the LhD

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Plasma Science and Technology 2024年第8期26卷 25-31页

作者： Naoko AShIKAWA robert LUNSFORD Federico NESPOLI Erik GILSON Yaowei YU Jiansheng hU Shinichiro KADO National Institute for Fusion Science Toki 509-5292Japan Princeton Plasma Physics Laboratory Princeton NJ 08540United States of America Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China Institute of Advanced Energy Kyoto UniversityKyoto 611-0011Japan

In the Large helical Device(LhD),diborane(B2h6)is used as a standard boron source for boronization,which is assisted by helium glow *** 2019,a new Impurity Powder Dropper(IPD)system was installed and is under evaluation as a real-time wall conditioning *** the LhD,which is a large-sized heliotron device,an additional helium(he)glow discharge cleaning(GDC)after boronization was operated for a reduction in hydrogen recycling from the coated boron *** operational time of 3 h was determined by spectroscopic data during glow discharges.A flat hydrogen profile is obtained on the top surface of the coated boron on the specimen exposed to *** results suggest a reduction in hydrogen at the top surface by *** oxygen in coated boron was obtained by boronization,and the coated boron,which has boron-oxide,on the first wall by B-IPD was also *** the difference in coating areas between B2h6 boronization and B-IPD operation,it would be most effective to use the IPD and B2h6 boronization coating together for optimized wall conditioning.

关键词： boron layer oxygen impurity hydrogen recycling impurity powder dropper LhD EAST

ITPK1 is an InsP/ADP phosphotransferase that controls phosphate signaling in Arabidopsis

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Molecular Plant 2024年第7期17卷 1151-1157页

作者： Esther Riemer Danye Qiu Debabrata Laha robert K.harmel Philipp Gaugler Verena Gaugler Michael Frei Mohammad-Reza hajirezaei Nargis Parvin Laha Lukas Krusenbaum Robin Schneider Adolfo Saiardi Dorothea Fiedler henning J.Jessen Gabriel Schaaf Ricardo F.h.Giehi 不详

(Molecular Plant 14,1864-1880;November 12021)We identified a mistake made when calculating the absolute concentrations of inositol(pyro)phosphates derived from CE-ESl-MS measurements reported in the originally published version of our *** to a calculation error when determining concentrations per fresh biomass,the absolute values shown in the manuscript are approximately 30-fold lower than they should *** mistake affects Figures 2D,3C,4C,and 7D and Figures S4,S11B,S13,and *** all conclusions made in the article referred to relative differences between genotypes and treatments,they remained unaffected by these mistakes.

关键词： ipt Arabidopsis absolute