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淮河生态经济带极端天气变化对粮食生产影响研究

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长江流域资源与环境 2024年第5期33卷 1099-1109页

作者：郭利京金娜安徽财经大学经济学院安徽蚌埠233030

随着全球气候变化速度加快,高温、暴雨、干旱、低温等极端天气频发增加了农业气象灾害的发生频率,给粮食产量稳定供给带来了巨大的挑战。基于淮河生态经济带28个地市2001~2020年日气温、降雨气象数据和农业生产相关数据,利用广义最小二... 详细信息

随着全球气候变化速度加快,高温、暴雨、干旱、低温等极端天气频发增加了农业气象灾害的发生频率,给粮食产量稳定供给带来了巨大的挑战。基于淮河生态经济带28个地市2001~2020年日气温、降雨气象数据和农业生产相关数据,利用广义最小二乘法(FGLS)研究淮河生态经济带极端天气变化及其对粮食生产的影响。结果表明:(1)从时间趋势上看,极高温日数(SU35)呈现增长趋势、极低温日数(Fd5)呈现下降趋势,年际倾向率分别为1.85、-2.24 d/10a,暴雨日数(R50)以及最长连续无降水日数(Cdd)年际变化趋势不明显;从空间区域分布上看,淮河生态经济带中西部地区极高温日数较多、北部地区极低温日数较多,暴雨日数呈现由东部向中西部再到北部地区减少的趋势、最长连续无降水日数呈现相反变动趋势。(2)极端天气对粮食生产具有显著不利影响。极低温日数、极高温日数、最长连续无降水日数、暴雨日数每增加1%,粮食单产分别下降0.069%、0.021%、0.018%、0.008%。(3)极端天气对淮河生态经济带粮食生产影响具有区域异质性。极端天气主要影响中西部地区和北部地区的粮食生产,对东部地区粮食生产影响不显著。提出通过培育抗旱抗涝等作物新品种、提高极端天气变化监测能力、加强区域内政府间防灾减灾等协同联动、继续加强高标准农田建设等措施,维护淮河生态经济带粮食产量稳定。

关键词：极端天气自然灾害粮食产量淮河生态经济带

Ion heat transport in electron cyclotron resonance heated L-mode plasma on the T-10 tokamak

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Plasma Science and Technology 2024年第4期26卷 52-60页

作者： V.A.KRUPIN M.R.NURGALIEV A.R.NEMETS I.A.ZEMTSOV S.d.SUNTSOV T.B.MyALTON d.S.SERGEEV N.A.SOLOVEV d.V.SARyCHEV d.V.RyJAKOV S.N.TUGARINOV N.N.naUMENKO national Research Centre“Kurchatov Institute” Moscow 123182Russia Bauman Moscow State Technical University Moscow 105005Russia Institution“Project Center ITER” Moscow 123098Russia JSC“SOLAR” Minsk 220034Belarus

Anomalous ion heat transport is analyzed in the T-10 tokamak plasma heated with electron cyclotron resonance heating(ECRH) in second-harmonic extra-ordinary mode. Predictive modeling with empirical scaling for Ohmical heat conductivity shows that in ECRH plasmas the calculated ion temperature could be overestimated, so an increase of anomalous ion heat transport is required. To study this effect two scans are presented: over the EC resonance position and over the ECRH power. The EC resonance position varies from the high-field side to the low-field side by variation of the toroidal magnetic field. The scan over the heating power is presented with on-axis and mixed ECRH regimes. discharges with high anomalous ion heat transport are obtained in all considered regimes. In these discharges the power balance ion heat conductivity exceeds the neoclassical level by up to 10 times. The high ion heat transport regimes are distinguished by three parameters: the ratio Te/Ti, the normalized electron density gradient R/■, and the ion–ion collisionality νii~*. The combination of high Te/Ti, high νii~*, and R/■=6-10 results in values of normalized anomalous ion heat fluxes up to 10 times higher than in the low transport scenario.

关键词： tokamak L-mode electron cyclotron resonance heating ion heat transport

Therapeutic Effectiveness of Leukocyte-and Platelet-rich Fibrin for diabetic Foot Ulcers:A Retrospective Study

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Current medical Science 2024年第3期44卷 568-577页

作者： Fen WANG Xiao-ling ZHANG Jing ZHANG Song GONG Jing TAO Hui XIANG Xiao-qing FU Xu-na BIAN Xue-feng yU An-hui XU Cheng-la yI Shi-ying SHAO department of Endocrinology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Branch of national Clinical Research Center for Metabolic diseases Wuhan430030China department of Radiology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China department of Trauma Surgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China

Objective diabetic foot ulcer(dFU)is one of the most serious complications of ***-and platelet-rich fibrin(L-PRF)is a second-generation autologous platelet-rich *** study aims to investigate the clinical effects of L-PRF in patients with diabetes in real clinical *** Patients with dFU who received L-PRF treatment and standard of care(SOC)from 2018 to 2019 in Tongji Hospital were *** clinical information including patient characteristics,wound evaluation(area,severity,infection,blood supply),SOC of dFU,and images of ulcers was retrospectively extracted and analyzed.L-PRF treatment was performed every 7±2 days until the ulcer exhibited complete epithelialization or an overall percent volume reduction(PVR)greater than 80%.Therapeutic effectiveness,including overall PVR and the overall and weekly healing rates,was *** Totally,26 patients with dFU were enrolled,and they had an ulcer duration of 47.0(35.0,72.3)*** severity and infection of ulcers varied,as indicated by the Site,Ischemia,Neuropathy,Bacterial Infection,and depth(SINBAd)scores of 2–6,Wagner grades of 1–4,and the Perfusion,Extent,depth,Infection and Sensation(PEdIS)scores of 2–*** initial ulcer volume before L-PRF treatment was 4.94(1.50,13.83)cm3,and the final ulcer volume was 0.35(0.03,1.76)*** median number of L-PRF doses was 3(2,5).A total of 11 patients achieved complete epithelialization after the fifth week of treatment,and 19 patients achieved at least an 80%volume reduction after the seventh *** overall wound-healing rate was 1.47(0.63,3.29)cm3/week,and the healing rate was faster in the first 2 weeks than in the remaining *** treatment did not change the percentage of complete epithelialization or healing *** Adding L-PRF to SOC significantly improved wound healing in patients with dFU independent of the ankle brachial index,SINBAd score,or Wagner grade,indicating that this method is appropriate for d

关键词： diabetic foot ulcer autologous platelet-rich plasma leukocyte-and platelet-rich fibrin standard of care percentage volume reduction

Shexiang Tongxin dropping Pill Promotes Angiogenesis through VEGF/eNOS Signaling Pathway on diabetic Coronary Microcirculation dysfunction

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Chinese Journal of Integrative medicine 2024年第10期30卷 886-895页

作者： CUI Xin-yu LIU Tian-hua BAI ya-li ZHANG Meng-di LI Guo-dong ZHANG yu-ting yUAN yue-ying ZHANG ya-wen yU Li-shuang HAN Li-na WU yan School of Traditional Chinese medicine Beijing University of Chinese MedicineBeijing100029China Key Laboratory of Traditional Chinese medicine Syndrome and Formula Ministry of Education Beijing University of Chinese MedicineBeijing100029China Beijing Research Institute of Chinese medicine Beijing University of Chinese MedicineBeijing100029China

Objective:To study the effect of Shexiang Tongxin dropping Pill(STdP)on angiogenesis in diabetic cardiomyopathy mice with coronary microcirculation dysfunction(CMd).Methods:According to a random number table,6 of 36 SPF male C57BL/6 mice were randomly selected as the control group,and the remaining 30 mice were injected with streptozotocin intraperitoneally to replicate the type 1 diabetes *** successfully copied the diabetes model were randomly divided into the model group,STdP low-dose group[15 mg/(kg·d)],medium-dose group[30 mg/(kg·d)],high-dose group[60 mg/(kg·d)],and nicorandil group[15 mg/(kg·d)],6 in each *** drug was given by continuous gavage for 12 *** cardiac function of mice in each group was detected at the end of the experiment,and coronary flow reserve(CFR)was detected by chest doppler *** changes of myocardium were observed by hematoxylin-eosin staining,collagen fiber deposition was detected by masson staining,the number of myocardial capillaries was detected by platelet endothelial cell adhesion molecule-1 staining,and the degree of myocardial hypertrophy was detected by wheat germ agglutinin *** expression of the vascular endothlial growth factor(VEGF)/endothelial nitric oxide synthase(eNOS)signaling pathway-related proteins in myocardial tissue was detected by Western ***:Compared with the model group,medium-and high-dose STdP significantly increased the left ventricular ejection fraction and left ventricular fraction shortening(Py repaired the disordered cardiac muscle structure,reduced myocardial fibrosis,reduced myocardial cell area,increased capillary density,and increased CFR level(all Pd that high-dose STdP could significantly increase the expression of VEGF and promote the phosphorylation of vascular endothelial growth factor receptor 2,phosphoinositide 3-kinase,protein kinase B,and eNOS(PdP has a definite therapeuti

关键词： Shexiang Tongxin dropping Pill type 1 diabetes diabetic cardiomyopathy coronary microcirculation dysfunction angiogenesis

On the calibration of a shear stress criterion for rock joints to represent the full stress-strain profile

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第2期16卷 379-392页

作者： Akram deiminiat Jonathan d.Aubertin yannic Ethier department of Construction Engineering École de Technologie Supérieure(ÉTS)MontréalCanada

Conventional numerical solutions developed to describe the geomechanical behavior of rock interfaces subjected to differential load emphasize peak and residual shear *** detailed analysis of preand post-peak shear stress-displacement behavior is central to various time-dependent and dynamic rock mechanic problems such as rockbursts and structural instabilities in highly stressed *** complete stress-displacement surface(CSdS)model was developed to describe analytically the pre-and post-peak behavior of rock interfaces under differential *** formulations of the CSdS model required extensive curve-fitting iterations which limited its practical applicability and transparent integration into engineering *** present work proposes modifications to the CSdS model aimed at developing a comprehensive and modern calibration protocol to describe the complete shear stressdisplacement behavior of rock interfaces under differential *** proposed update to the CSdS model incorporates the concept of mobilized shear strength to enhance the post-peak ***’s concepts of joint roughness coefficient(JRC)and joint compressive strength(JCS)are incorporated to facilitate empirical estimations for peak shear stress and normal closure ***/uniaxial compression test and direct shear test results are used to validate the updated model and exemplify the proposed calibration *** results illustrate that the revised model successfully predicts the post-peak and complete axial stressestrain and shear stressedisplacement curves for rock joints.

关键词： Full shear profile Post-peak shear behavior Rock joint Joint roughness coefficient(JRC) Axial stress-strain curve

绝经后女性维生素d营养状况与血脂及骨密度的关系

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中国骨质疏松杂志 2024年第10期30卷 1444-1448页

作者：庞娜李胜君徐春琳河北医科大学第二医院河北石家庄050051

目的探讨绝经后女性血清25-羟维生素d[25(OH)d]水平与血脂及骨密度(bone mineral density,BMd)的相关性。方法对在河北医科大学第二医院就诊的102名绝经后女性进行横断面调查,收集一般情况、慢性病史、生活方式、血清25(OH)d水平、血脂... 详细信息

目的探讨绝经后女性血清25-羟维生素d[25(OH)d]水平与血脂及骨密度(bone mineral density,BMd)的相关性。方法对在河北医科大学第二医院就诊的102名绝经后女性进行横断面调查,收集一般情况、慢性病史、生活方式、血清25(OH)d水平、血脂谱及股骨、腰椎部位骨密度等资料。应用SPSS 28.0软件建立数据库,分析维生素d与血脂谱及骨密度的相关性。结果102名绝经后女性血清25(OH)d平均水平为(18.51±6.02)ng/mL,维生素d缺乏及不足者占96.08%;血清25(OH)d水平与年龄、体重、居住地、日照时间、采血季节有关;25(OH)d水平与总胆固醇(total cholesterol,TC)(Z=8.038,P=0.018)、甘油三酯(triglyceride,TG)(Z=14.318,Pdensity lipoprotein cholesterol,HdL-C)(Z=12.150,P=0.002)呈正相关;维生素d与股骨颈骨密度(r=0.501,P=0.001)、股骨转子骨密度(r=0.570,P=0.001)、股骨内部骨密度(r=0.354,P=0.001)、股骨整体骨密度(r=0.404,P=0.001)、Ward’s骨密度(r=0.529,P=0.001)呈正相关;调整年龄、体质量指数(body mass index,BMI)后相关性仍存在。只在L4骨密度(P=0.042)中发现BMI与骨密度呈正相关。结论绝经后女性人群中维生素d缺乏及不足患病率高;维生素d水平充足者有更健康的血脂谱,骨质疏松风险更低。

关键词：绝经后女性维生素d 血脂骨密度

Four Late-type Galaxies with double Radio Lobes and Properties of Such Galaxies

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Research in Astronomy and Astrophysics 2024年第4期24卷 84-90页

作者： Z.S.yuan X.y.Gao Z.L.Wen J.L.Han national Astronomical Observatories Chinese Academy of SciencesBeijing 100101China CAS Key Laboratory of FAST National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Sciences University of Chinese Academy of SciencesBeijing 100049China

The triggering mechanism for radio lobes from late-type galaxies is not fully *** samples are desired for a thorough investigation and *** utilizing the optical data from the newly released dark Energy Spectroscopic Instrument imaging surveys and the radio sources from the NRAO VLA Sky Survey and the Faint Images of the Radio Sky at Twenty-centimeter,we identify four Late-type Galaxies with double Radio Lobes(La GRLs):J0217-3645,J0947+6220,J1412+3723 and J1736+*** previously known La GRLs,we confirm the correlation between radio power P_(1.4GHz)and stellar mass M_(*)of host ***(25/35)La GRLs belong to the blue cloud galaxies,while the newly identified cases in this work are located within the region of the red *** find a clear correlation between the differential radio power,i.e.,the offset from the P_(1.4GHz)-M_(*)relation,and the galaxy color,indicating that bluer galaxies at a fixed M_(*)tend to host more powerful radio ***,the majority(31/36)of La GRLs are either located in a galaxy group or displaying a disturbed *** suggest that all of the galaxy mass,color and surrounding environment could play important roles in triggering radio lobes in late-type galaxies.

关键词： galaxies:active galaxies:jets galaxies:spiral radio continuum:galaxies

多发肋骨骨折合并降主动脉破裂出血及创伤性湿肺患者的术后护理

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中华急危重症护理杂志 2024年第2期5卷 121-124页

作者：余娜衢州市人民医院急诊重症监护室浙江省衢州市324000

总结了1例多发肋骨骨折合并降主动脉破裂出血、创伤性湿肺患者的护理体会。护理要点:早期识别再出血风险;积极预防肺部并发症;实施分阶段锻炼,预防深静脉血栓;精细化营养护理及提供个性化心理护理。通过实施多层面干预措施,改善患者预后... 详细信息

总结了1例多发肋骨骨折合并降主动脉破裂出血、创伤性湿肺患者的护理体会。护理要点:早期识别再出血风险;积极预防肺部并发症;实施分阶段锻炼,预防深静脉血栓;精细化营养护理及提供个性化心理护理。通过实施多层面干预措施,改善患者预后,术后10 d患者出院,随访1个月,患者恢复良好。

关键词：肋骨骨折主动脉破裂创伤性湿肺危重病护理

Laboratory evaluation of toxicity of selected insecticides against egg and larval stages of cotton pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae)

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Journal of Cotton Research 2024年第1期7卷 15-28页

作者： BUSNOOR Abhishek V. WAdASKAR R.M. FANd Babasaheb B. TAMBE V.J. PILLAI T. MAHULE d.J. naGRARE V.S. PRASAd y.G. Entomology Section College of Agriculture(Dr.Panjabrao Deshmukh Krishi Vidyapeeth)Nagpur 440001MaharashtraIndia Indian Council of Agricultural Research-Central Institute for Cotton Research Nagpur 441108MaharashtraIndia

Background The cryptic nature of pink bollworm Pectinophora gossypiella(Saunders)larvae enables its reduced vul-nerability to insecticidal ***,the development of resistance against Bacillus thuringiensis(Bt)toxins posed a serious threat to transgenic cotton *** necessitated determining the critical timing of spray applications on the control *** study assessed the influence of egg age(freshly laid ***-day-old)and the loca-tion of larvae(directly exposed to the insecticide residues on the boll rind *** inside the bolls)on insecticide control *** The results revealed a significant decrease in the ovicidal activity of tested insecticides with an increase in the age of eggs from one day old to three days old(paired t-test,Pdirectly exposed to the insec-ticide residues on the boll rind were more susceptible(>80%mortality)than the larvae exposed after they had bur-rowed inside the bolls(y).The inhibitory effects of tested insecticides on developmental biology were more pronounced in the experiment on pre-larval release insecticide treatment compared with insecticide treatment given post-larval release and entry inside the *** Egg age influences the insecticide susceptibility,as does the larval location,directly exposed vs bur-rowed inside the *** eggs and the larvae that had burrowed inside the green bolls of cotton were relatively less susceptible to the insecticide *** toxic effects of insecticides on egg and larval stages were primar-ily *** findings are significant for devising a comprehensive strategy for pink bollworm management on a sustainable basis.

关键词： Bioefficacy Cotton Insecticides Pink bollworm Pectinophora gossypiella Timings of spray