检索结果-南通市图书馆

Resilience, the 6th Vital Sign: Conceptualizing, Contextualizing, and Operationalizing All Six Vital Signs

在线全文

学校读者我要写书评

暂无评论

Health 2024年第7期16卷 657-673页

作者： Rose E. Constantino Betty J. Braxter chi ching Vivian hui Larissa C. Allen Lillian J. Wolfe Katherine H. Endres Jezyl Cempron Cutamora Laurence L. Garcia Daisy R. Palompon Kathleen thimsen Brayden N. Kameg Margarete L. Zalon Department of Health and Community Systems School of Nursing University of Pittsburgh Pittsburgh PA USA Undergraduate Affairs School of Nursing University of Pittsburgh Pittsburgh PA USA the hong Kong Polytechnic University Hong Kong China School of Nursing Adjunct Faculty at the University of Pittsburgh Pittsburgh PA USA School of Nursing University of Pittsburgh Pittsburgh PA USA Department of Health Promotion and Development School of Nursing University of Pittsburgh Pittsburgh PA USA College of Nursing Cebu Normal University Cebu City Philippines School of Nursing University of Nevada Las Vegas USA Department of Health and Community Systems University of Pittsburgh PA USA Department of Nursing University of Scranton Scranton PA USA

there are five vital signs that healthcare providers assess: temperature, pulse, respiration, blood pressure, and pain. Normal levels for the five vital signs are published by the American Heart Association, and other specialty organizations, however, the sixth vital sign (resilience) which adopts the measure of immune resilience is suggested in this paper. Resilience is the ability of the immune system to respond to attacks and defend effectively against infections and inflammatory stressors, and psychological resilience is the capacity to resist, adapt, recover, thrive, and grow from a challenge or a stressor. Individuals with better optimal immune resilience had better health outcomes than those with minimal immune resilience. the purpose of this paper is to conceptualize, contextualize, and operationalize all six vital signs. We suggest measuring resilience subjectively and objectively. Subjectively, use a 5-item guided interview revised from the Connor-Davidson Resilience Scale (CDRC), a scale of 10 items. the revised CDRC scale is a 5-item scale. the scale is rated on a 5-point Likert scale from 0 (not true) to 4 (true all the time). the total score ranges from 0 to 20, with higher total scores indicating greater resilience. the scale demonstrated good construct validity and internal consistency (α = 0.85) during the development of the scale. the CD-RISC had a good Cronbach’s alpha level of 0.85. the Revised CD-RISC can be completed in 2 - 4 minutes. to measure resilience objectively, we suggest using Immune Resilience (IR) levels, the level of resilience to preserve and/or rapidly restore immune resilience functions that promote disease resistance and control inflammation and other inflammatory stress. IR levels are gauged with two peripheral blood metrics that quantify the balance between CD8 and CD4 t-cell levels and gene expression signatures tracking longevity-associated immunocompetence and mortality- or entropy-associated inflammation. IR deregulation i

关键词： Conceptualization Contextualization Operationalization Body temperature Pulse Respiration Blood Pressure Pain Resilience

“洗涤+生物滤池”组合式除臭技术及示范工程

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

环境卫生工程 2024年第5期32卷 119-121页

作者：陈驰张文帅林杰刘慧上海野马环保设备工程有限公司

【基本情况】林城镇农村生活垃圾资源化利用站位于浙江省长兴县林城镇,是国家重点研发计划课题“村镇有机垃圾快速定向腐殖化与恶臭气体控制技术装备”(No. 2018YFD1100601)示范工程。项目采用上海野马环保设备工程有限公司研发的“洗涤... 详细信息

【基本情况】林城镇农村生活垃圾资源化利用站位于浙江省长兴县林城镇,是国家重点研发计划课题“村镇有机垃圾快速定向腐殖化与恶臭气体控制技术装备”(No. 2018YFD1100601)示范工程。项目采用上海野马环保设备工程有限公司研发的“洗涤+生物滤池”组合式除臭技术,对该站16个生活垃圾堆肥仓(日处理量8~10 t)、污水处理设备及预处理车间产生的臭气进行集中处理后达标排放。该技术采用低成本模块化生物滤池结构,不仅可以高效解决村镇生活垃圾的恶臭问题,还可以解决村镇项目中存在的道路运输不便、不具备整体吊装条件等问题,对改善农村人居环境、促进农村可持续发展具有重要意义。【技术/案例原理及技术路线】本站的除臭工艺为“前端雾化+末端除臭”联合除臭技术。前端除臭工艺为植物液空间雾化:当堆肥料仓打开时,前端雾化除臭系统将自动打开,有效降低臭气的无组织扩散对环境的影响。

关键词：污水处理设备农村生活垃圾恶臭气体有机垃圾生物滤池除臭技术农村人居环境示范工程

Leaching process of phosphorus and iron from steelmaking slag into malic acid solution

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2022年第6期29卷 951-960页

作者： Ning-ning Lv Chang Su hui Kong Hai-chuan Wang Yuan-chi Dong Key Laboratory of Metallurgical Emission Reduction and Resources Recycling Ministry of EducationAnhui University of TechnologyMa’anshan 243002AnhuiChina School of Metallurgical Engineering Anhui University of TechnologyMa’anshan 243002AnhuiChina

In order to remove phosphorus element from steelmaking slag and decrease iron loss,malic acid was selected as the leaching agent to dissolve steelmaking ***,the influences of different factors,such as malic acid concentration,slag particle size,temperature,liquid/solid ratio and stirring speed,on the leaching ratios of phosphorus and iron were ***,the kinetics for the leaching process of phosphorus was *** results showed that the leaching ratios of phosphorus and iron increase significantly with increasing the malic acid solution concentration and liquid/solid *** the concentration of malic acid solution increases up to 0.01492 mol/L,about 80%phosphorus can be dissolved,and iron leaching ratio is less than 17%.In addition,decreasing slag particle size can obviously increase the leaching ratio of ***,temperature and stirring speed have no significant effect on the dissolution of phosphorus and *** leaching kinetics of phosphorus follows the unreacted shrinking core *** through product layer is the rate-limiting step of the leaching process,and the corresponding apparent activation energy is determined to be 3.32 kJ/***,a semi-empirical kinetic equation was established.

关键词： Leaching process Steelmaking slag Phosphorus Iron Malic acid solution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

轻质铸造铝合金轮毂热处理变形测试分析

精密成形工程 2024年第2期16卷 79-86页

作者：黄少兵池慧黄华贵燕猛项鹏飞徐正琦中信戴卡股份有限公司工程技术研究总院河北秦皇岛066011 燕山大学机械工程学院河北秦皇岛066004

目的精准建立铸造铝合金轮毂各区域的t6热处理变形状态及其最佳检测方法,对热处理态轮毂进行表征研究,探讨铝合金轮毂热处理过程的变形规律,为轮毂工业生产和变形研究提供精确和适宜的变形测试方法。方法根据轮毂的结构特征,将变形检测... 详细信息

目的精准建立铸造铝合金轮毂各区域的t6热处理变形状态及其最佳检测方法,对热处理态轮毂进行表征研究,探讨铝合金轮毂热处理过程的变形规律,为轮毂工业生产和变形研究提供精确和适宜的变形测试方法。方法根据轮毂的结构特征,将变形检测区域分为外轮缘端面、轮辋、轮辐-轮心3个区域,分别使用三坐标测量机、手持三维激光扫描仪和轮缘轴向高度检测装置对4种不同结构的热处理态轮毂进行变形测试,并对测量结果进行分析。结果铝合金轮毂的热处理变形程度与其自身的结构、尺寸密切相关;外轮缘端面轴向变形主要表现为翘曲变形,呈双波峰波谷的变形规律;距离外轮缘越远的环状轮辋,受轮辐结构影响的凹凸程度逐渐减小,椭圆形趋势增大;轮辐-轮心为轴向凹陷变形;轮缘轴向高度检测装置的测量结果与三坐标测量结果基本一致,误差为±5μm。结论手持扫描仪适用于轮辋/轮辐等平坦曲面的变形测试及整体变形云图化;轮缘轴向高度检测装置适用于工业化在线测试。所使用的测试工具和建立的测试方法可以较好地测试轮毂变形,阐明铝合金轮毂热处理变形规律,为后续轮毂的变形控制和变形测试提供测试基础。

关键词：铝合金轮毂热处理变形端面变形测试方法非接触测量

Feasibility of aluminum recovery and MgAl_2O_4 spinel synthesis from secondary aluminum dross

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

International Journal of Minerals,Metallurgy and Materials 2019年第3期26卷 309-318页

作者： Yong Zhang Zhao-hui Guo Zi-yu Han Xi-yuan Xiao chi Peng School of Metallurgy and Environment Central South University

the feasibility of aluminum recovery from secondary aluminum dross by extraction with NaOH solution and the subsequent synthesis of MgAl_2O_4 spinel by sintering the extracted slag were studied. the extraction percentage of soluble aluminum from the dross reached 80% at a temperature of 353 K, liquid-to-solid ratio of 12 mL·g^(-1), stirring speed of 300 r·min^(-1), and an extraction time of 15 min; the hydrolysis percentage of AlN reached 40% with an extraction time of 30 min. the activation energies of the soluble aluminum and AlN extracted from the dross were 7.15 and 8.98 kJ·mol^(-1), respectively, indicating that their kinetics were controlled by outer diffusion without a product layer. the extracted slag was sintered in the temperature range 1373–1773 K; MgAl_2O_4 spinel with a compressive strength as high as 69.4 MPa was produced in the sample sintered at 1673 K for 3 h. this value exceeds the threshold(40 MPa) prescribed by the National Standard for the Magnesia and Magnesia-alumina Refractory Bricks of china(GB/t 2275-2007). these results establish the effectiveness of aluminum recovery from secondary aluminum dross and subsequent MgAl_2O_4 spinel synthesis.

关键词： secondary aluminum dross reuse extraction sintering magnesium aluminate spinel

A conserved inverted repeat from rice plastome functions as an intrinsic transcription terminator

在线全文

学校读者我要写书评

暂无评论

chinese Science Bulletin 2005年第15期50卷 1669-1672页

作者： LIN chi-hui LIANG Yu-din CHEN Liang-Jwu Institute of Molecular Biology National Chung-Hsing UniversityTaichung 402 Taiwan China Institute of Chemistry Academia Sinica Taipei 115 Taiwan China

Results from a previous rice transcription mapping and the GeSter algorithm analysis used in this in-vestigation for rice plastid genome suggest that an inverted repeat, IRs18, in 3′ region of the plastid rps18 gene may serve as a transcription terminator. the in vitro transcription assay showed that the transcript ending at the IRs18 was not proc-essed by ribonucleases but terminated intrinsically in an rNtP substrate-dependent manner as demonstrated for the first time in plant gene regulation. For the poly-t tract (ttCtttttt) 3′-proximal to the IRs18, the C base conver-sion to t resulting in a perfect 9 ts can dramatically increase termination efficiency, which is a common feature of bacte-rial intrinsic termination. this study is the first case to indi-cate that a conserved inverted repeat with a poly-t tract from higher plant chloroplast contributes to transcription termination of the translation-associated rps18 gene in a manner with the intrinsic termination, probably resulting from a heritage of endosymbiosis.

关键词：水稻叶绿体转录基因反向重复质体基因组

Multi-scale investigation of short-range order and dislocation glide in MoNbti and taNbti multi-principal element alloys

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

npj Computational Materials 2023年第1期9卷 1430-1442页

作者： hui Zheng Lauren t.W.Fey Xiang-Guo Li Yong-Jie Hu Liang Qi chi Chen Shuozhi Xu Irene J.Beyerlein Shyue Ping Ong Department of NanoEngineering University of California San DiegoLa JollaCA 92093-0448USA Materials Department University of CaliforniaSanta BarbaraCA 93106-5050USA Department of Materials Science and Engineering University of MichiganAnn ArborMI 48109USA Department of Materials Science and Engineering Drexel UniversityPhiladelphiaPA 19104USA Department of Mechanical Engineering University of CaliforniaSanta BarbaraCA 93106-5070USA

Refractory multi-principal element alloys(RMPEAs)are promising materials for high-temperature structural ***,we investigate the role of short-range ordering(SRO)on dislocation glide in the MoNbti and taNbti RMPEAs using a multi-scale modeling *** carlo/molecular dynamics simulations with a moment tensor potential show that MoNbti exhibits a much greater degree of SRO than taNbti and the local composition has a direct effect on the unstable stacking fault energies(USFEs).From mesoscale phase-field dislocation dynamics simulations,we find that increasing SRO leads to higher mean USFEs and stress required for dislocation *** gliding dislocations experience significant hardening due to pinning and depinning caused by random compositional fluctuations,with higher SRO decreasing the degree of USFE dispersion and hence,amount of ***,we show how the morphology of an expanding dislocation loop is affected by the applied stress.

关键词： alloys dislocation element

选择性脑降温对脊柱外科内固定术老年患者术后血脑屏障功能及谵妄发生的影响

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国现代医学杂志 2024年第16期34卷 73-80页

作者：余晖宋辉琼武汉市第四医院麻醉科湖北武汉430033

目的探讨选择性脑降温对老年脊柱外科内固定患者术后血脑屏障功能及谵妄发生的影响。方法选取2022年5月—2023年7月在武汉市第四医院静吸复合全身麻醉下行脊柱外科内固定术的患者126例。采用简单随机分组法将患者分为选择性脑降温组(SBC... 详细信息

目的探讨选择性脑降温对老年脊柱外科内固定患者术后血脑屏障功能及谵妄发生的影响。方法选取2022年5月—2023年7月在武汉市第四医院静吸复合全身麻醉下行脊柱外科内固定术的患者126例。采用简单随机分组法将患者分为选择性脑降温组(SBC组)和对照组(C组)。两组患者均采用液体加温联合体表加温毯,保持加温直至手术结束,SBC组患者使用设定温度为4℃的电子冰帽进行选择性脑降温。分别于麻醉诱导前(t_(0))、麻醉诱导后30 min(t_(1))、60 min(t2)、90 min(t_(3))、120 min(t_(4))、150 min(t_(5))、术毕(t_(6))和出麻醉恢复室(PACU)(t_(7))时记录患者鼻咽温、肛温,于t_(6)时从患者肘正中静脉抽取患者外周静脉血样,采用免疫磁珠法分离鉴定脑微血管内皮细胞(BMECs),荧光显微镜下计数细胞;术前1天、术后第1天及术后第3天分别采用散射比浊法及酶联免疫吸附试验测定外周血C反应蛋白(CRP)、S100β蛋白浓度;手术后第1~3天同时采用3分钟谵妄诊断量表和谵妄评估量表-98修订版量表(DRS-R-98)评估患者术后谵妄(POD)的发生情况。结果两组患者性别构成、年龄、体重、文化程度比例、高血压病史率、心脏病史率、糖尿病史率、美国麻醉师协会分级Ⅲ级率、术中低血压、手术持续时间、输液量、失血量、自体血回输量、常规抗菌药物使用率比较,经χ^(2)/t检验,差异均无统计学意义(P>0.05)。SBC组t_(6)时静脉血BMECs计数、POD率均低于对照组(Pt/χ^(2)检验,差异均无统计学意义(P>0.05)。两组患者t_(1)~t_(7)时肛温比较,经重复测量设计的方差分析,结果:①不同时间点间的肛温比较,差异有统计学意义(P<0.05);②两组患者肛温比较,差异有统计学意义(P<0.05);③两组患者肛温变化趋势比较,差异有统计学意义(P<0.05)。两组患者术前、术后1 d、术后3 d血清CRP、S100β浓度比较,经重复测量设计的方差分析,结果:①不同时间点间血清CRP、S100β浓度比较,差异均有统计学意义(P<0.05);②两组患者血清CRP、S100β浓度比较,差异均有统计学意义(P<0.05);③两组患者血清CRP、S100β浓度变化趋势比较,差异均有统计学意义(P<0.05)。两组患者术后第1天、术后第2天及术后第3天DRS-R-98评分比较,经重复测量设计的方差分析,结果:①不同时间点间的DRS-R-98评分比较,差异有统计学意义(P<0.05);②两组患者DRS-R-98评分比较,差异有统计学意义(P<0.05);③两组患者DRS-R-98评分变化趋势比较,差异有统计学意义(P<0.05)。SBC组POD总发生率低于对照组(P<0.05)。结论选择性脑降温能安全降低行脊柱外科内固定老年患者术中脑局部温度,维持患者血脑屏障结构和功能的稳定,降低患者POD的发生风险。

关键词：术后谵妄选择性脑降温脑微血管内皮细胞血脑屏障

在线全文

学校读者我要写书评

暂无评论

大豆异黄酮对幼年小鼠生殖发育的影响

中国药房 2024年第6期35卷 678-682页

作者：许文达董思林张晗宋迎琳迟镜仪赵振军石慧烟台大学生命科学学院山东烟台264005

目的探讨大豆异黄酮(SI)对幼鼠生殖发育的影响。方法将C57BL/6幼鼠随机分为对照组和SI小、大剂量组(10、100 mg/kg),每组10只,雌雄各半。各药物组幼鼠灌胃相应药液,每天1次,持续2周。末次灌胃后,计算幼鼠的体重增长百分比,检测血清雌二... 详细信息

目的探讨大豆异黄酮(SI)对幼鼠生殖发育的影响。方法将C57BL/6幼鼠随机分为对照组和SI小、大剂量组(10、100 mg/kg),每组10只,雌雄各半。各药物组幼鼠灌胃相应药液,每天1次,持续2周。末次灌胃后,计算幼鼠的体重增长百分比,检测血清雌二醇、睾酮水平以及生殖器官组织中丙二醛(MDA)含量、总抗氧化能力(t-AOC)和超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)活性,观察其生殖器官组织的病理改变,并检测其细胞凋亡情况。结果与对照组比较,SI大剂量组雌性幼鼠的体重增长百分比显著升高,而雄性幼鼠的体重增长百分比显著降低(Pt-AOC,以及SI各剂量组雄性幼鼠睾丸及附睾组织细胞凋亡率均显著升高(P<0.05或P<0.01);SI各剂量组雌性幼鼠血清雌二醇水平,SI大剂量组雌性幼鼠卵巢组织中SOD活性和SI各剂量组雌性幼鼠卵巢组织中MDA含量,以及SI各剂量组雌性小鼠卵巢组织细胞凋亡率均显著降低(P<0.05或P<0.01)。结论SI可提高雌性幼鼠卵巢组织的抗氧化应激能力,减少其氧化应激损伤,但对雄性幼鼠的生殖器官具有一定的蓄积毒性。

关键词：大豆异黄酮幼鼠生殖发育生殖器官毒性