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Socio-Demographic, Biopsychosocial and Lifestyle Behaviors Related with Eating Disorders of Children and Adolescents of Costa Rica 预览
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作者 Nú?ez-Rivas Hilda Patricia Holst-Schumacher Ileana Campos-Saborío Natalia 《食品与营养科学(英文)》 2019年第8期1021-1033,共13页
The objective of the study was to evaluate the association of sociodemographic, biopsychosocial and lifestyle behaviors (diet, sedentarism and physical activity) with eating disorders (ED) in a national sample of Cost... The objective of the study was to evaluate the association of sociodemographic, biopsychosocial and lifestyle behaviors (diet, sedentarism and physical activity) with eating disorders (ED) in a national sample of Costa Rican children and adolescents. This was a cross-sectional and descriptive study. A total of 2667 students of elementary, middle and high school from sixty-four educative centers (40 schools and 24 high schools) of Costa Rica participated in the study. The predictive factors associated with ED are: body image dissatisfaction (β = 0.367;p β = 0.131;p β = 0.109;p 0.001), intentionally hurt or harm itself (β = 0.074;p β = 0.053;p β = 0.052;p β = 0.051;p β = -0.071;p β = -0.068;p = 0.010) and the age (β = -0.064;p = 0.001) are not related with the development of ED. Psychosocial factors (body image dissatisfaction and intentionally self-injure) had the greatest influence (near 27%) of the global variance of the regression model that explained the association with ED. Programs should be promoted to monitor children and adolescents with excess weight, as well as, the coexistence of erroneous weight and body image perceptions in these population. This could protect against the development of ED in children and adolescents. Evidence-Based Medicine: Level V of evidence (descriptive study). 展开更多
关键词 EATING DISORDERS BEHAVIORS Children Adolescents Costa Rica
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快速城镇化地区农业转移人口市民化阶段与行为特征——基于广东省东莞市的调查 预览
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作者 李先锋 杜志威 李郇 《地域研究与开发》 CSSCI CSCD 北大核心 2019年第4期170-174,共5页
以广东省东莞市为例,研究快速城镇化地区农业转移人口市民化的阶段划分与行为特征,为我国快速城镇化发展过程中农业转移人口市民化提供经验和参考依据。结果表明:农业转移人口市民化过程分为开始市民化、正在市民化和稳定市民化3个阶段... 以广东省东莞市为例,研究快速城镇化地区农业转移人口市民化的阶段划分与行为特征,为我国快速城镇化发展过程中农业转移人口市民化提供经验和参考依据。结果表明:农业转移人口市民化过程分为开始市民化、正在市民化和稳定市民化3个阶段;通过问卷调查数据分析东莞农业转移人口在市民化过程中的带眷行为、居住行为、就业行为和入户行为等特征,家庭式迁移、本地购房、高收入水平、长期居住等因素对农业转移人口市民化有积极作用;基于对农业转移人口行为特征的分析,从完善市民化通道、优先考虑意愿强人口入户、重点解决教育住房就业等基本公共服务、逐步推进公共服务均等化等方面提出促进农业转移人口市民化的政策建议。 展开更多
关键词 农业转移人口 市民化 行为特征 东莞市
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血透护士对患者隐私保护现状及影响因素研究 预览
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作者 黄静雅 莫雅文 +2 位作者 孙春艳 宋利 符霞 《护理学杂志》 CSCD 北大核心 2019年第11期39-42,共4页
目的了解血透护士对患者隐私保护现状并探讨其影响因素。方法采用患者隐私量表,对全国78所医院的960名血透室护士进行问卷调查。结果护士对患者隐私保护认知得分为126.67±12.72,行为得分115.31±17.40。超过60%护士认为患者隐... 目的了解血透护士对患者隐私保护现状并探讨其影响因素。方法采用患者隐私量表,对全国78所医院的960名血透室护士进行问卷调查。结果护士对患者隐私保护认知得分为126.67±12.72,行为得分115.31±17.40。超过60%护士认为患者隐私被暴露与科室物资配置不全、护士人力资源不足有关,45.10%认为与科室缺乏患者隐私保护相关制度有关。多元回归结果显示,年龄、培训经历、培训意愿是护士对患者隐私保护认知的影响因素;职务、培训经历、法律法规了解程度是护士对患者隐私保护行为的影响因素(均P<0.01)。结论护士对患者隐私保护的认知与行为不一致,隐私保护行为不足与科室物资配置不足、缺乏相关制度、培训不足、对法律法规了解程度低以及管理者未起到很好的示范作用有关。应不断改进上述因素,将护士的认知转化为实际行动,同时应完善科室制度和物资配置,为血透患者隐私保护提供保障。 展开更多
关键词 血液透析 护士 患者隐私 隐私保护 认知 行为 影响因素
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论非实施性专利权主体的权利和行为限制
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作者 管荣齐 《法律科学:西北政法大学学报》 CSSCI 北大核心 2019年第3期147-156,共10页
非实施性专利权主体有恶意的、善意的和实质的非实施性专利权主体之分。非实施性专利权主体不实施专利不但影响甚至阻碍他人实施,而且造成社会资源浪费、损害社会公共利益,因而有必要对其权利和行为尤其是不可实施的专利权和恶意牟利行... 非实施性专利权主体有恶意的、善意的和实质的非实施性专利权主体之分。非实施性专利权主体不实施专利不但影响甚至阻碍他人实施,而且造成社会资源浪费、损害社会公共利益,因而有必要对其权利和行为尤其是不可实施的专利权和恶意牟利行为加以限制。基于我国的现状和问题,借鉴美国、欧洲、日本的相应经验,我国应当强化专利权人的实施义务,加强对专利实用性的审查,改强制许可申请制为备案制,扩大专利先用权实施范围,提高专利维持年费水平,禁用惩罚性损害赔偿,加重专利权人举证责任,禁用行为保全措施。 展开更多
关键词 非实施性专利权主体 权利 行为 限制
Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts
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作者 Peilong Li Li Guo +7 位作者 Renjin Xiong Junhong Luo Ming Wen Yong Yao Zhi Zhang Jiangfeng Song Yan Shi Tao Tang 《中国化学工程学报:英文版》 SCIE EI CAS CSCD 2019年第8期1837-1845,共9页
The liquid phase catalytic exchange(LPCE) reaction is an effective process for heavy water detritiation and production of deuterium-depleted potable water. In the current study, hydrophobic carbon-supported platinum c... The liquid phase catalytic exchange(LPCE) reaction is an effective process for heavy water detritiation and production of deuterium-depleted potable water. In the current study, hydrophobic carbon-supported platinum catalysts(Pt/C/PTFE) with high efficiency as reported previously for LPCE were prepared and comprehensive performance evaluation method is applied to evaluate the separation behaviors of LPCE systematically. Experimental results indicate that the optimum reaction temperature of 60–80℃ and the molar feed ratio G/L of 1.5–2.5 would lead to higher separation efficiencies. As to the packing method, a random packing mode with a packing ratio of hydrophobic catalysts 0.25 is recommended. In addition, thermodynamic analysis corresponds well with experimental results under lower temperature and G/L, while the suppression of kinetic factors should not be neglected when T > 80℃ and G/L > 1.5. 展开更多
关键词 Liquid phase catalytic exchange(LPCE) Hydrophobic carbon-supported platinum CATALYSTS Separation behaviors Optimal operating condition Water detritiation
颅痛颗粒对偏头痛模型大鼠行为学及NF-κB信号转导通路的影响
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作者 蒲玉婷 王小强 +1 位作者 杨思进 白雪 《广州中医药大学学报》 CAS 2019年第4期569-573,共5页
【目的】观察颅痛颗粒(袪风药合虫类药)对偏头痛模型大鼠行为学及核因子κB(NF-κB)信号通路的影响,探讨其作用机制。【方法】将60只雄性大鼠随机分为正常组,模型组,西药组,中药高、中、低剂量组,每组10只。中药高、中、低剂量组大鼠分... 【目的】观察颅痛颗粒(袪风药合虫类药)对偏头痛模型大鼠行为学及核因子κB(NF-κB)信号通路的影响,探讨其作用机制。【方法】将60只雄性大鼠随机分为正常组,模型组,西药组,中药高、中、低剂量组,每组10只。中药高、中、低剂量组大鼠分别给予颅痛颗粒(剂量为4.0、2.0、1.0 g·kg^-1·d^-1)灌胃,西药组给予舒马普坦(剂量为6.0 mg·kg^-1·d^-1)灌胃,正常组、模型组给予等体积蒸馏水灌胃,连续灌胃7 d后,给予大鼠颈背部皮下一次性注射10 mg/kg硝酸甘油复制偏头痛模型,观察大鼠行为学改变,Western blot法检测脑干NF-κBp65、磷酸化核因子κB抑制蛋白α(p-IκBα)的表达。【结果】(1)行为学变化:与正常组比较,模型组大鼠挠头及爬笼次数均明显增加(P<0.05),于造模后2~5 min出现双耳发红现象;与模型组比较,中药高、中、低剂量组及西药组大鼠挠头及爬笼次数均明显减少,耳红出现时间延后,耳红持续时间缩短(P<0.05),且中药各剂量组的治疗作用呈剂量依赖性。(2)NF-κBp65、p-IκBα的表达:与正常组比较,模型组脑干NF-κBp65、p-IκBα蛋白表达升高;与模型组比较,中药高、中、低剂量组及西药组NF-κBp65、p-IκBα蛋白表达均降低(P<0.05),且中药各剂量组的治疗作用呈剂量依赖性。【结论】颅痛颗粒可改善偏头痛大鼠的行为学变化,其作用机制可能与抑制脑干NF-κB信号通路的激活有关。 展开更多
关键词 袪风药 虫类药 颅痛颗粒 偏头痛 行为学 NF-ΚB p-IκBα 疾病模型 动物 大鼠
慢性肾脏病患者的疾病知信行状况调查
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作者 吴莲叶 谢建芳 《中华全科医师杂志》 2019年第8期737-741,共5页
目的调查研究社区慢性肾脏病(CKD)患者对肾脏病的知识、态度、行为状况,探索医养结合的方法.方法2016年6月至2018年5月采用问卷星手机微信调查问卷的形式对上海市青浦区金泽、华新两家社区57个村1006例CKD患者一对一进行知信行问卷调查... 目的调查研究社区慢性肾脏病(CKD)患者对肾脏病的知识、态度、行为状况,探索医养结合的方法.方法2016年6月至2018年5月采用问卷星手机微信调查问卷的形式对上海市青浦区金泽、华新两家社区57个村1006例CKD患者一对一进行知信行问卷调查,并对调查结果进行分析.结果1006例CKD患者对疾病知识认知情况调查问卷中共答对7010题,知识认知率为69.98%(7010/10060).对CKD的态度调查显示,CKD患者在转诊、了解CKD知识、定期随访、健康指导以及生活方式等方面的态度中,表示愿意者占60.40%(6072/10060),表示一般者占32.59%(3279/10060),表示不愿意者占7.01%(705/10060);对行为方式调查显示,在主动了解疾病知识、定期随访、咨询、合理饮食、规范运动等方面,表示经常者占29.17%(2934/10060),表示偶尔者占52.96%(5328/10060),表示从不者占17.87%(1798/10060).不同性别、不同年龄、不同职业的CKD患者对肾病知识认知差异无统计学意义(t=0.475,F=7.111,F=0.563;均P>0.05),大学及以上学历(7.80±3.96)分、肾脏病确诊5年以上(7.64±2.84)分及CKD5期(8.25±1.16)分的CKD患者对肾病知识认知度最高.结论CKD患者对疾病的知识、态度、行为知晓率偏低,尤其是对疾病的态度和行为方面更为低下,探索医养结合方法,制定合理的干预措施,转变患者对待疾病的态度及行为方式,使CKD防治工作重心前移,有效控制CKD进展,减轻疾病对健康的危害. 展开更多
关键词 肾脏病 慢性 知识 态度 行为 医养结合
Effect of Warm Acupuncture on “Dinghui Acupoint” and “Heart Acupoint” in Traditional Mongolian Medicine on Behaviors and Hypothalamic Inflammatory Cytokines in Rats with Chronic Fatigue Syndrome 预览
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作者 Shumei Bai Ling Shui +1 位作者 Qin Si Yingsong Chen 《医学科学进展杂志(英文)》 2019年第2期8-13,共6页
Objective: To observe the effects of warm acupuncture on “Dinghui Acupoint” and “Heart Acupoint” in Traditional Mongolian Medicine on behavior and hypothalamic inflammatory cytokines IL-1β, IL-6 and IFN-r in Rats... Objective: To observe the effects of warm acupuncture on “Dinghui Acupoint” and “Heart Acupoint” in Traditional Mongolian Medicine on behavior and hypothalamic inflammatory cytokines IL-1β, IL-6 and IFN-r in Rats with Chronic Fatigue Syndrome. Methods: SD rats were randomly divided into normal group, model group, warm acupuncture group and moxibustion positive control group. The latter three groups of rats were used to establish a model of rats with chronic fatigue syndrome (CFS) using a combination of physical fatigue and mental fatigue. When establishing the model of warm acupuncture group,“Dinghui Acupoint” and “Heart Acupoint” intervention was carried out;when establishing the model of moxibustion positive control group,“Zusanli Acupoint” intervention was carried out on both sides. Behavioral observations (body weight, exhaustive swimming time, tail suspension experiment, water maze) were performed before and after modeling. The hypothalamic inflammatory cytokines IL-1β, IL-6 and IFN-r were detected by ELISA method after warm acupuncture and moxibustion intervention. Results: After 21 days of modeling, the body weight of the rats in each group was significantly lower than that in the normal group, and there was a significant difference (P<0.01);Compared with the model group, the weight of the rats in the warm acupuncture group increased significantly, and there was a significant difference (P<0.01);Compared with the model group, the exhaustive swimming time of the rats in the warm acupuncture group was significantly prolonged, and there was a significant difference (P<0.01);Compared with the moxibustion group, the exhaustion time of the rats in the warm acupuncture group was relatively prolonged, and there was a significant difference (P<0.05);Compared with the normal group, the tail suspension time of the model group was significantly prolonged, and there was a significant difference (P<0.05);Compared with the model group, there was a significant difference in the duration of the suspen 展开更多
关键词 Warm acupuncture in TRADITIONAL MONGOLIAN Medicine Chronic fatigue syndrome (CFS) BEHAVIORS Cytokines
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In situ backscattered electron imaging study of the effect of annealing on the deformation behaviors of Ni electroformed from additive-free and saccharin-containing sulfamate solutions 预览
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作者 Kai Jiang Hiroaki Nakano +2 位作者 Satoshi Oue Tatsuya Morikawa Wen-huai Tian 《矿物冶金与材料学报:英文版》 SCIE EI CAS CSCD 2019年第1期114-123,共10页
The Ni samples were electroformed from additive-free(AF)and saccharin-containing(SC)sulfamate solutions,respectively.In situ backscattered electron(BSE)imaging,electron backscatter diffraction(EBSD),and electron-probe... The Ni samples were electroformed from additive-free(AF)and saccharin-containing(SC)sulfamate solutions,respectively.In situ backscattered electron(BSE)imaging,electron backscatter diffraction(EBSD),and electron-probe microanalysis(EPMA)were used to investigate the effect of annealing on the deformation behaviors of the AF and SC samples.The results indicate that columnar grains of the as-deposited AF sample had an approximated average width of 3μm and an approximated aspect ratio of 8.The average width of columnar grains of the as-deposited SC sample was reduced to approximately 400 nm by the addition of saccharin to the electrolyte.A few very-large grains distributed in the matrix of the SC sample after annealing.No direct evidence indicated that S segregated at the grain boundaries before or after annealing.The average value of the total elongations of the SC samples decreased from 16%to 6%after annealing,whereas that of the AF samples increased from 18%to 50%.The dislocation recovery in grain-boundary areas of the annealed AF sample was reduced,which contributed to the appearance of microvoids at the triple junctions.The incompatibility deformation between very-large grains and fine grains contributed to the brittle fracture behavior of the annealed SC Ni. 展开更多
关键词 backscattered electron imaging ANNEALING electroformed NI SULFAMATE solution deformation behaviors
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Limiting weak-type behaviors for Riesz transforms and maximal operators in Bessel setting
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作者 Xianming HOU Huoxiong WU 《中国数学前沿:英文版》 SCIE CSCD 2019年第3期535-550,共16页
We establish the limiting weak type behaviors of Riesz transforms associated to the Bessel operators on IR+. which are closely related to the best constants of the weak type (1,1) estimates for such operators. Meanwhi... We establish the limiting weak type behaviors of Riesz transforms associated to the Bessel operators on IR+. which are closely related to the best constants of the weak type (1,1) estimates for such operators. Meanwhile, the corresponding results for Hardy-Littlewood maximal operator and fractional maximal operator in Bessel setting are also obtained. 展开更多
关键词 LIMITING weak-type BEHAVIORS BESSEL OPERATORS Riesz transforms maximal OPERATORS
Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature
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作者 Liu Liu Jie Meng +4 位作者 Jinlai Liu Mingke Zou Haifeng Zhang Xudong Sun Yizhou Zhou 《材料科学技术学报:英文版》 SCIE EI CAS CSCD 2019年第9期1917-1924,共8页
Low-cycle fatigue behaviors of Ni-base single crystal superalloys containing different Re contents have been investigated at 760℃. During heat treatment. Reretards γ phases coarsening and equalizes the distribution ... Low-cycle fatigue behaviors of Ni-base single crystal superalloys containing different Re contents have been investigated at 760℃. During heat treatment. Reretards γ phases coarsening and equalizes the distribution of γ' phases. As Re content increases, fatigue life increases and slip bands distribute more inhomogeneously. Moreover, adding Re not only reduces stacking fault energy of the matrix, but also promotes the element segregation to increase the lattice misfit. However, the larger lattice misfit does not lead to the formation of dislocation networks, but which activates dislocation movement and promotes dislocations cross-slip and climbing movement under high temperature and applied stress. On the other hand, with the addition of Re, cyclic deformation behaviors change from cyclic hardening to cyclic stability, mainly depending on a transformation of deformation mechanisms from slip bands cutting through γ and γ' phases to stacking faults shearing. 展开更多
关键词 Single crystal SUPERALLOYS Low-cycle FATIGUE DEFORMATION BEHAVIORS DEFORMATION mechanisms
Fish Behavior Analysis Based on Computer Vision: A Survey 预览
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作者 Yizhi Zhou Hong Yu +2 位作者 Junfeng Wu Zhen Cui Fangyan Zhang 《国际计算机前沿大会会议论文集》 2019年第2期139-141,共3页
Fish behavior refers to various movements of fish. Fish behavior is closely related to the ecology of fish, physiological changes of fish, aquaculture and so on. Related applications will be expanded if fish behavior ... Fish behavior refers to various movements of fish. Fish behavior is closely related to the ecology of fish, physiological changes of fish, aquaculture and so on. Related applications will be expanded if fish behavior is analyzed properly. Traditional analysis of fish behavior mainly relies on the observation of human eyes. With the deepening and extension of application and the rapid development of computer technology, computer vision technology is increasingly used to analyze fish behaviors. This paper summarized the research status, research progress and main problems of fish behavior analysis by using computer vision and made forecast about future research. 展开更多
关键词 FISH BEHAVIOUR ANALYSIS Computer VISION FISH BEHAVIORS monitoring
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Interaction Solutions for Kadomtsev-Petviashvili Equation with Variable Coefficients
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作者 刘建国 朱文慧 周丽 《理论物理通讯:英文版》 SCIE CAS CSCD 2019年第7期793-797,共5页
Based on the Hirota’s bilinear form and symbolic computation,the Kadomtsev-Petviashvili equation with variable coefficients is investigated.The lump solutions and interaction solutions between lump solution and a pai... Based on the Hirota’s bilinear form and symbolic computation,the Kadomtsev-Petviashvili equation with variable coefficients is investigated.The lump solutions and interaction solutions between lump solution and a pair of resonance stripe solitons are presented.Their dynamical behaviors are described by some three-dimensional plots and corresponding contour plots. 展开更多
关键词 Hirota's BILINEAR form DYNAMICAL behaviors STRIPE SOLITONS
LIMITING WEAK-TYPE BEHAVIORS FOR CERTAIN LITTLEWOOD-PALEY FUNCTIONS 预览
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作者 侯宪明 伍火熊 《数学物理学报:B辑英文版》 SCIE CSCD 2019年第1期11-25,共15页
In this paper, we establish the following limiting weak-type behaviors of Littlewood-Paley g-function gφ: for nonnegative function f∈ L1(Rn),■and ■where ft(x) =t-nf(t-1 x) for t > 0. Meanwhile, the correspondin... In this paper, we establish the following limiting weak-type behaviors of Littlewood-Paley g-function gφ: for nonnegative function f∈ L1(Rn),■and ■where ft(x) =t-nf(t-1 x) for t > 0. Meanwhile, the corresponding results for Marcinkiewicz integral and its fractional version with kernels satisfying Lαq-Dini condition are also given. 展开更多
关键词 LIMITING BEHAVIORS weak-type bounds LITTLEWOOD-PALEY g-functions Marcinkiewicz integrals L_α~q -Dini conditions
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亚致死剂量噻虫嗪对日本弓背蚁觅食和亲系识别能力的影响 预览
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作者 张松 鲍海波 +2 位作者 张建华 张懿熙 刘泽文 《南京农业大学学报》 CAS CSCD 北大核心 2019年第2期270-275,共6页
[目的]研究亚致死剂量噻虫嗪对日本弓背蚁觅食和亲系识别能力的损害,重点观察通过个体交流传递杀虫剂的影响。[方法]通过模拟觅食情景,观察农药处理对日本弓背蚁觅食能力的影响;通过Y形管试验和EAG(electroantennography)试验,观察农药... [目的]研究亚致死剂量噻虫嗪对日本弓背蚁觅食和亲系识别能力的损害,重点观察通过个体交流传递杀虫剂的影响。[方法]通过模拟觅食情景,观察农药处理对日本弓背蚁觅食能力的影响;通过Y形管试验和EAG(electroantennography)试验,观察农药处理对亲系识别能力的影响;通过攻击行为试验,观察农药处理对异种蚂蚁识别能力的影响。[结果]农药直接处理和通过个体交流获得的间接处理,均导致蚂蚁招募行为的丧失;2种处理对同巢蚂蚁的识别能力无统计学差异,但显著影响对异巢蚂蚁的识别能力;在对异种蚂蚁的攻击行为和巢穴保护方面,仅直接处理组出现显著影响。[结论]亚致死剂量噻虫嗪可以直接影响日本弓背蚁的觅食和亲系识别能力;而且通过个体间的信息交流,农药对社会行为的影响可以传递给其他未直接接触到药剂的蚂蚁,从而影响日本弓背蚁的种群发展。 展开更多
关键词 行为学 新烟碱类杀虫剂 亚致死剂量 日本弓背蚁
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Mechanical force drives the polarization and orientation of cells 预览
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作者 Shijie He Xiaomeng Li Baohua Ji 《力学学报:英文版》 SCIE EI CAS CSCD 2019年第2期275-288,共14页
Collective cells are organized to form specific patterns which play important roles in various physiological and pathological processes, such as tissue morphogenesis, wound healing, and cancer invasion. Compared to si... Collective cells are organized to form specific patterns which play important roles in various physiological and pathological processes, such as tissue morphogenesis, wound healing, and cancer invasion. Compared to single cell behaviors, which has been intensively studied from many aspects (cell migration, adhesion, polarization, proliferation, etc.) and at various scales (molecular, subcellular, and cellular), the multiple cell behaviors are relatively less understood, particularly in a quantitative manner. In this paper, we will present our recent studies of collective polarization and orientation of multiple cells through both experimental measurement and theoretical modeling, including those cell behaviors on/in 2D and 3D substrate/tissue. We find that the collective cell behaviors, including polarization, alignment and migration are closely related to local stress states in cell layer or tissue, which demonstrate the crucial roles of mechanical forces in the living organisms. Specifically, the cells prefer to polarize and align along the maximum principal stress in the cell layer, and the aspect ratio of cell increases with the in-plane maximum shear stress, suggesting that the maximum shear stress is the underlying driving force of cell polarization and orientation. This theory of stress-driven cell behaviors of polarization and orientation provides a new perspective for understanding cell behaviors in living organisms and the guideline for tissue engineering in biomedical applications. 展开更多
关键词 COLLECTIVE CELL behaviors CELL POLARIZATION CELL ALIGNMENT Quantification CELL MECHANOSENSING
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The Application of Theoretical Models in the Studies of Physical Activity Behaviors of the Elderly in China 预览
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作者 Yuquan Chen Yuqi Wang +2 位作者 Fanxuan Meng Zifei Du Qun Zuo 《医学科学进展杂志(英文)》 2019年第2期29-33,共5页
By using the method of literature review, this paper introduces the popular theoretical models which have shown to better explain physical activity behaviors at a certain degree, summarizes the dominating theoretical ... By using the method of literature review, this paper introduces the popular theoretical models which have shown to better explain physical activity behaviors at a certain degree, summarizes the dominating theoretical models in the studies of physical activity behaviors of the elderly in China. In addition, shortcomings and future prospects are pointed out at the end. 展开更多
关键词 The application of THEORETICAL MODELS The ELDERLY PHYSICAL activity BEHAVIORS China
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综合病例站点式培训对提高规培护士防跌倒能力的效果 预览
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作者 刘素敏 刘兴玲 +1 位作者 张颖杰 曾文 《护理实践与研究》 2019年第23期141-144,共4页
目的探讨综合病例站点式培训对提高规培护士防跌倒能力的效果。方法选取2016年7月至2017年7月我院入职的规培护士62名作为调查对象,随机将其等分为对照组和观察组,观察组采用综合病例站点式培训进行干预,对照组实施常规流程式培训,比较... 目的探讨综合病例站点式培训对提高规培护士防跌倒能力的效果。方法选取2016年7月至2017年7月我院入职的规培护士62名作为调查对象,随机将其等分为对照组和观察组,观察组采用综合病例站点式培训进行干预,对照组实施常规流程式培训,比较两组培训后护士防跌倒相关知识、态度及行为变化。结果培训后,两组护士防跌倒相关知识掌握水平评分明显升高(P<0.05),观察组患者因素、特殊药物、大小便以及活动能力评分高于对照组;两组护士防跌倒态度评分均明显升高(P<0.05),观察组预防责任承担、多部门联合参与、高危患者定期评估、跌倒后如实上报以及转科时积极评估等态度评分高于对照组;两组防跌倒行为评分均明显升高(P<0.05),观察组患者和家属依从性评估、高危患者安全转运和高危患者卧床护理等行为评分高于对照组(P<0.05)。结论综合病例站点式培训可提高规培护士跌倒知识掌握水平,改善防跌倒工作态度并熟悉跌倒护理工作流程,全面提高其防跌倒能力。 展开更多
关键词 综合病例站点式培训 规培护士 跌倒 态度 行为
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A{Tb2Fe3}Pyramid Single-Molecule Magnet with Ferromagnetic Tb-Fe Interaction
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作者 Han Li Xixi Meng +3 位作者 Mengmeng Wang Yu-Xia Wang Wei Shi Peng Cheng 《中国化学:英文版》 SCIE CAS CSCD 2019年第4期373-377,共5页
The influence of magnetic interactions to the magnetization dynamics was well experimentally studied in a 3d-4f single-molecule magnet(SMM)[Tb^Ⅲ2Fe^Ⅲ3(μ5-O)L2(NO3)4Cl](1,H4L=N,N,N′,N′-tetrakis(2-hydroxyethyl)ethy... The influence of magnetic interactions to the magnetization dynamics was well experimentally studied in a 3d-4f single-molecule magnet(SMM)[Tb^Ⅲ2Fe^Ⅲ3(μ5-O)L2(NO3)4Cl](1,H4L=N,N,N′,N′-tetrakis(2-hydroxyethyl)ethylene diamine)and its diamagneticion-diluted samples.Significant ferromagnetic coupling between Tb^Ⅲ and Fe^Ⅲ ions and SMM behavior of 1 were observable,which proved clearly that the magnetic interaction between 3d-4f spin carriers has also an excessive impact on fine-tuning the magnetization dynamic behaviors of 3d-4f complexes. 展开更多
关键词 A{Tb2Fe3}Pyramid SINGLE-MOLECULE Magnet FERROMAGNETIC Tb-Fe INTERACTION magnetization dynamic behaviors
Nonlinear dynamic analysis of a photonic crystal nanocavity resonator 预览
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作者 Fengrui LIU Han YAN Wenming ZHANG 《应用数学和力学:英文版》 SCIE EI CSCD 2019年第1期139-152,共14页
A nonlinear dynamic model of a one-dimensional photonic crystal nanocavity resonator is presented.It considers the internal tensile stress and the geometric characteristics of a photonic crystal with rectangular(and c... A nonlinear dynamic model of a one-dimensional photonic crystal nanocavity resonator is presented.It considers the internal tensile stress and the geometric characteristics of a photonic crystal with rectangular(and circular)holes.The solution of the dynamic model shows that the internal tensile stress can suppress the hardening and softening behaviors of the resonator.However,the stress can reduce the amplitude,which is not conducive to an improvement of the sensitivity of the sensor.It is demonstrated that with an optimized beam length,the normalized frequency drift of the beam can be stabilized within 1% when the optical power increases from 2 mW to 6 mW.When the hole size of the resonator beam is close to the beam width,its increase can lead to a sharp rise of the resonant frequency and the promotion of hardening behavior.Moreover,the increase in the optical power initially leads to the softening behavior of the resonator followed by an intensification of the hardening behavior.These theoretical and numerical results are helpful in understanding the intrinsic mechanism of the nonlinear response of an optomechanical resonator,with the objective of avoiding the nonlinear phenomena by optimizing key parameters. 展开更多
关键词 nonlinear dynamic RESONATOR PHOTONIC CRYSTAL SOFTENING and HARDENING BEHAVIORS
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