检索结果-南通市图书馆

数字化口腔定位支架在头颈部肿瘤放射治疗中的应用现状

在线全文

学校读者我要写书评

暂无评论

国际口腔医学杂志 2024年第1期51卷 28-35页

作者：和子慕李风兰山西医科大学口腔医学院太原030000 山西省人民医院口腔修复科太原030000

在放射治疗中,由于射线不可避免地对正常细胞产生辐射作用,头颈部肿瘤患者常会发生严重的口腔并发症,例如:放射治疗诱发性口腔黏膜炎、张口困难、吞咽困难、放射性颌骨坏死和放射性龋病等。这些并发症会影响甚至中断放射治疗的进行,对... 详细信息

在放射治疗中,由于射线不可避免地对正常细胞产生辐射作用,头颈部肿瘤患者常会发生严重的口腔并发症,例如:放射治疗诱发性口腔黏膜炎、张口困难、吞咽困难、放射性颌骨坏死和放射性龋病等。这些并发症会影响甚至中断放射治疗的进行,对放射治疗后患者的生活质量造成难以估量的影响。为减小放射治疗带来不利影响,近年来,国内外学者对口腔定位支架(OPS)开展了广泛的研究,其中传统型OPS对一些口腔并发症的预防起到明显的作用,但其在设计制作以及推广应用上存在一些不足,数字化OPS的研究应运而生。本文主要对数字化OPS的设计制作方法、口腔并发症的预防以及放射治疗摆位的影响进行总结分析,对其应用前景进行了展望。

关键词：口腔支架头颈部肿瘤放射治疗计算机辅助设计放射性口腔黏膜炎摆位误差

在线全文

学校读者我要写书评

暂无评论

立体光固化技术在口腔修复领域的应用

实用口腔医学杂志 2024年第4期40卷 574-579页

作者：张杰(综述) 李风兰(审校) 山西医科大学口腔医学院口腔医院太原030000 山西医科大学附属山西省人民医院口腔修复科

随着计算机科学与口腔材料的发展,数字化技术正逐渐改变着口腔临床的工作方式。3D打印作为一种数字化加工方法,在修复体制作中发挥着重要作用,其基本工艺包括立体光固化、材料喷射、材料挤出等。其中基于立体光固化原理的桌面打印设备... 详细信息

随着计算机科学与口腔材料的发展,数字化技术正逐渐改变着口腔临床的工作方式。3D打印作为一种数字化加工方法,在修复体制作中发挥着重要作用,其基本工艺包括立体光固化、材料喷射、材料挤出等。其中基于立体光固化原理的桌面打印设备因打印精度高、成型速度快等优势在口腔临床工作中应用最为广泛。该文简要介绍了临床工作中使用的立体光固化技术原理、材料与打印机工作的流程,并对立体光固化打印技术在口腔修复领域的应用做一综述。

关键词：计算机辅助设计与计算机辅助制造 3D打印立体光固化口腔修复

寒地玉米秸秆腐熟物复配基质在蔬菜育苗中的应用

在线全文

学校读者我要写书评

暂无评论

中国瓜菜 2024年第4期37卷 87-93页

作者：贺付蒙杨燕王雪张颖徐永清李凤兰东北农业大学生命科学学院哈尔滨150030 黑龙江省绿色食品科学研究院哈尔滨150030 东北农业大学资源与环境学院哈尔滨150030

为探索寒地玉米秸秆腐熟物替代传统草炭土基质的可行性,以草炭土、蛭石和珍珠岩混合而成的传统基质作为对照,以A(V腐熟物∶V蛭石∶V珍珠岩=2∶1∶1)、B(V腐熟物∶V蛭石∶V珍珠岩=1∶1∶1)两种复配基质为处理,研究复配基质对黄瓜和辣椒... 详细信息

为探索寒地玉米秸秆腐熟物替代传统草炭土基质的可行性,以草炭土、蛭石和珍珠岩混合而成的传统基质作为对照,以A(V腐熟物∶V蛭石∶V珍珠岩=2∶1∶1)、B(V腐熟物∶V蛭石∶V珍珠岩=1∶1∶1)两种复配基质为处理,研究复配基质对黄瓜和辣椒幼苗生长的影响,以及育苗前后营养物质和相关酶活性的变化。结果表明,两种复配基质的容重、水气比和电导率与传统基质呈显著差异;在幼苗定植28 d时,A、B两种基质的黄瓜幼苗株高分别比对照显著提高67.25%和44.95%,茎粗分别显著提高29.30%和17.83%,叶绿素含量分别显著提高7.42%和3.13%;A、B两种基质的辣椒幼苗株高分别比对照显著提高8.55%和15.36%,茎粗分别显著提高2.38%和6.21%,叶绿素含量分别显著提高4.74%和12.44%;育苗后基质铵态氮和有效钾含量均降低,速效磷含量升高,黄瓜育苗后A、B两种基质速效磷含量分别升高71.27%和76.36%;辣椒育苗后A、B两种基质速效磷含量分别升高249.22%和115.81%。A、B两种基质中脲酶和酸性磷酸酶活性在育苗结束后升高,蔗糖酶活性降低。综上,A基质更适于黄瓜幼苗的生长,B基质更适于辣椒幼苗的生长,可分别代替传统草炭土基质用于黄瓜和辣椒育苗。

关键词：秸秆腐熟物复配基质蔬菜育苗生长指标

维普期刊数据库博看期刊

“6S”管理在儿童消化内科病房护理管理中的应用

在线全文

学校读者我要写书评

暂无评论

中国卫生产业 2024年第11期21卷 118-120,124页

作者：李风兰刘桂芸刘雪滨州医学院附属医院儿童消化与肾病科山东滨州256600 滨州医学院附属医院康复医学科山东滨州256600 滨州医学院附属医院新生儿与儿童神经病区山东滨州256600

目的“6S”管理在儿童消化内科病房护理管理中的应用。方法选取2022年1—12月滨州医学院附属医院儿童消化内科病房护理人员20名为研究对象,以不同管理方法分为观察组、对照组,各10名。对照组应用常规护理管理,观察组应用“6S”管理。比... 详细信息

目的“6S”管理在儿童消化内科病房护理管理中的应用。方法选取2022年1—12月滨州医学院附属医院儿童消化内科病房护理人员20名为研究对象,以不同管理方法分为观察组、对照组,各10名。对照组应用常规护理管理,观察组应用“6S”管理。比较两组护理质量评分(病区管理、基础护理、护理文书、护理安全)、职业压力、职业满意度、不良事件(护理疏漏、记录错误)发生情况。结果观察组护理质量评分均高于对照组,差异有统计学意义(P均<0.05)。观察组职业压力低于对照组、职业满意度高于对照组,差异有统计学意义(P均<0.05)。观察组出现1起护理疏漏;对照组出现3起护理疏漏,2起记录错误。结论“6S”管理能够在儿童消化内科病房护理管理中提高护理质量与职业满意度,降低职业压力,减少护理中不良事件的发生。

关键词： “6S”管理儿童消化内科病房护理管理

再生砖细骨料形态对混凝土流变行为与力学性能的影响

维普期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

建筑材料学报 2024年第7期27卷 629-636页

作者：党钧陶刘耘池肖建庄李风兰杨金龙华北水利水电大学土木与交通学院河南郑州450045 同济大学土木工程学院上海200092 华北水利水电大学河南省生态建材工程国际联合实验室河南郑州450045

评价了再生砖细骨料(RFCB)的几何形状和表面形态,研究了RFCB颗粒级配和初始饱水度对混凝土流变行为与力学性能的影响.结果表明:相比天然河砂,RFCB几何形状不规则且形状参数较低,表面形态呈凹陷凸起状且粗糙度较大;RFCB复杂的物理特性导... 详细信息

评价了再生砖细骨料(RFCB)的几何形状和表面形态,研究了RFCB颗粒级配和初始饱水度对混凝土流变行为与力学性能的影响.结果表明:相比天然河砂,RFCB几何形状不规则且形状参数较低,表面形态呈凹陷凸起状且粗糙度较大;RFCB复杂的物理特性导致新拌混凝土的屈服应力与塑性黏度增大,劈裂抗拉强度有所提高且对抗压强度无较大不利影响;适当降低RFCB的最小粒径和初始饱水度,虽会使混凝土的流变性能变差,但有助于在混凝土中形成以再生砖细骨料为软核、界面为硬壳的结构,从而提高了混凝土的力学性能.

关键词：再生砖细骨料再生混凝土几何形状表面形态流变行为力学性能

在线全文

学校读者我要写书评

暂无评论

综合性护理在儿童结肠镜检查中的应用

妇儿健康导刊 2024年第13期3卷 158-161页

作者：李风兰高俊芳朱美玉张芳滨州医学院护理学院山东烟台264003 滨州医学院附属医院儿童消化与肾病科山东滨州256603 滨州医学院附属医院护理部山东滨州256603

目的分析综合性护理在儿童结肠镜检查中的应用效果。方法选取滨州医学院附属医院2022年7月至2023年7月收治的200例结肠镜检查患儿,通过随机数字表法分为参照组和研究组,每组100例。参照组实施常规护理,研究组实施综合性护理,比较两组... 详细信息

目的分析综合性护理在儿童结肠镜检查中的应用效果。方法选取滨州医学院附属医院2022年7月至2023年7月收治的200例结肠镜检查患儿,通过随机数字表法分为参照组和研究组,每组100例。参照组实施常规护理,研究组实施综合性护理,比较两组的护理效果。结果相较于参照组,研究组各项肠道清洁度评分更高,差异有统计学意义(P<0.05);研究组不良反应总发生率低于参照组,差异有统计学意义(P <0.05);研究组护理总满意率和总依从率高于参照组,差异有统计学意义(P <0.05)。结论综合性护理在儿童结肠镜检查中的应用效果显著,能够提高患儿的依从性和肠道清洁度,减少不良反应,且具有较高的满意度。

关键词：综合性护理儿童结肠镜检查肠道清洁度

Seed,cutting and air-layering reproductive inefficiency of noxious woody vine Merremia biosiana and its implications for management strategy

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Frontiers in Biology 2009年第3期4卷 342-349页

作者： Mingguang li Haiyang liU fenglan li Xiuyuan CHENG Bin GUO Zhiwei FAN State Key Laboratory of Biocontrol Sun Yat-sen UniversityGuangzhou 510275China Environment and Plant Protection Institute Chinese Academy of Tropical Agricultural SciencesDanzhou 571737China

Merremia boisiana(Gagnep)van *** a noxious fast growing woody vine and is able to grow overtop other plants,causing the death of plants underneath and forming monospecies *** formulate management responses,we assessed its seed and vegetative reproduction efficacy through indoor and field *** number of flowers counted from bagged infructescences in Guangzhou ranged from 25 to 172,with an average of *** the seeds of bagged infructescences had shown that there were only 1.58 hard testa seeds in each *** vitality tests using red ink indicated that only 68.6%of hard testa and filled seeds were *** emergence rate of scarified hard testa seeds in the sand bed was 31.96%.Under imitated natural conditions,8%of hard testa seeds could germinate,and 9%still retained their germination potential in one ***,seedlings should be monitored and removed in a timely fashion after any attempt of *** soil or transplanting plant from infested patches should be strictly prohibited at least for several *** considered,an infructescence contributed 0.3 *** investigation in the field found no seedlings either inside or at the perimeter of the patch,suggesting scant expansion by means of seed ***,the elimination effort could be focused on a relatively restricted scale of *** 630 cuttings of young shoots,old shoots and old lying shoots with or without growth regulators,there were only four(or 0.63%)established ***-layering shoots all died in two *** cuttings and airlayering reproduction indicated that regeneration from fragments of removed stems or accidentally dropped ones was quite unlikely,and thus mechanical removal was safe.

关键词： Merremia boisiana seed vitality germination rate vegetative reproduction management

Occurrence and light response of residual plastid genes in a Euglena gracilis bleached mutant strain OflB2

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 Oceanology and limnology 2020年第6期38卷 1858-1866页

作者： QIN Huan GUO Qingqing liU Chenchen li fenglan ZHANG Hua CHU Zihan WANG Jiangxin LEI Anping Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science Shenzhen Engineering Laboratory for Marine Algal BiotechnologyGuangdong Provincial Key Laboratory for Plant EpigeneticsCollege of Life Sciences and OceanographyShenzhen UniversityShenzhen 518000China Basis International School SZ Shenzhen 518000China

Euglena gracilis is a unicellular green eukaryotic microalga that features characteristics of both plants and *** photosynthetic function of its chloroplast is easily lost under stress resulting in bleached mutants,while the physiological role of their residual plastid DNAs remains *** this study,we obtained five bleached mutants by ofloxacin(Ofl)treatment,identified 12 residual plastid genes in five bleached mutants,and determined the mRNA levels in the wild type ***(WT)and one bleached mutant(OflB2)under dark and light stimulation conditions by quantitative reverse transcribed PCR(qRTPCR).Results show that the expression of all selected plastid genes in both WT and OflB2 mutant did not change significantly in darkness,while their responses to light stimulation were *** the light stimulation conditions,half of the genes did not change significantly,while most of the other genes were down-regulated in OflB2 mutant and up-regulated in ***,the bleached mutant retains part of the plastid genome and the plastid relic is responsive to *** research will help to understand the functions of residual plastid DNA and evolution of chloroplasts.

关键词： Euglena gracilis bleached mutant residual plastid genes light response

Osmotic adjustment and up-regulation expression of stress-responsive genes in tomato induced by soil salinity resulted from nitrate fertilization

在线全文

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2018年第3期11卷 126-136页

作者： Tingting Chang Yujie Zhang Huilian Xu Xiaohou Shao Qicong Xu fenglan li lina Yu Zhanyu Zhang Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China of Ministry of Education Hohai UniversityNanjing 210098China College of Agricultural Science and Engineering Hohai UniversityNanjing210098China International Nature Farming Research Center Matsumoto390-1401 Japan Northeast Agricultural University Harbin 150000China Rizhao Institute of Agricultural Sciences Rizhao276800China

Concerns about the soil salinity caused by excessive fertilization have prompted scientists to clarify the detailed mechanisms and find techniques to alleviate the damage caused by this kind of soil *** of this study were to elucidate the effect of soil salinity caused by nitrate fertilization and the differences in salinity effect between nitrate salts and NaCl salt with analyses at various levels of crop physiology and molecular biology.A microbial inoculation was also tried to verify whether it could alleviate the salinity-induced loss and *** three experiments(Exp I,II and III),nitrate salts(NS)of Ca(NO_(3))_(2) and KNO_(3) were applied to potted tomato plants to simulate the soil salinity caused by fertilization and a microbial inoculant(MI)was *** was measured using *** adjustment was analyzed using the mathematically modeled pressure-volume curve;O_(2)-concentration and activity of SOD and nitrate reductase were *** of nitrate reductase gene and the stress-responsive gene DREB2 was analyzed using the real-time PCR *** Exp I and II,where the applied NS amount was moderate,NS application at low concentration induced increases in O_(2)-and MDA concentrations and plants acclimated to the soil salinity as the treatment prolonged for *** acclimation was contributed by osmotic adjustment,activation of SOD and re-compartmentation of cell water between symplasm and *** adjustments might be ultimately attributed to up-regulation of stress-responsive genes such as DREB2 as well as the nitrate reductase(NR)***,in Exp III,applications of NaCl and NS at high concentration could not show positive effects as NS *** of MI synergistically increased the xerophytophysiological regulation caused by NS and alleviated the salinity damage in addition to its own positive effects on the tomato *** from NaCl,nitrate salts at low application rate increased the total b

关键词： nitrate fertilizer osmotic adjustment salinity stress soil salinization tomato(Solanum lycopersicum) xerophytophysiology microorganism bioremediation