检索结果-南通市图书馆

积极心理学理论的管理模式对临床护士主观幸福感的研究

在线全文

学校读者我要写书评

暂无评论

临床消化病杂志 2024年第2期36卷 129-132页

作者：李燕玲李萍卢莹靳小雯徐玉兰胡德英鲁才红华中科技大学协和医院消化内科湖北武汉430022 华中科技大学协和医院护理部湖北武汉430022 华中科技大学协和医院教学办公室湖北武汉430022

[目的]研究以积极心理学理论为框架的管理模式对临床护士主观幸福感。[方法]对40名护士进行为期7周的积极心理学的培训及干预,主要运用积极心理学理论与技巧,操作方法和练习,对护士们进行优势测量、每日记录3件好事、感恩拜访、互助环... 详细信息

[目的]研究以积极心理学理论为框架的管理模式对临床护士主观幸福感。[方法]对40名护士进行为期7周的积极心理学的培训及干预,主要运用积极心理学理论与技巧,操作方法和练习,对护士们进行优势测量、每日记录3件好事、感恩拜访、互助环练习、品味练习等,培养护士们的正性情绪,学会处理自己的情绪,让自己多数情况下处于一种很积极向上的状态。以利于生活和工作、提升护士们的主观幸福感,更好地为患者服务,并且提升住院患者满意度。干预前及干预后比较护士生活满意度、正性情绪、负性情绪及主观幸福感。[结果]与干预前比较,干预后护士们生活满意度、正性情绪、主观幸福感明显得到提升(P<0.05),负性情绪得到一定改善(P<0.05)。[结论]积极心理学理论的管理模式的应用可以提升护士的正性情绪、降低负性情绪,提高生活满意度及主观幸福感。

关键词：积极心理学护士生活满意度正、负面情绪主观幸福感

The application of compressed sensing in synthetic transmit aperture medical ultrasound imaging

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Acoustics 2013年第3期32卷 254-263页

作者： L Yi wu Wentao LI ping Institute of Acoustics Chinese Academy of Sciences University of Chinese Academy of Sciences

In synthetic transmit aperture medical ultrasound imaging field,a compressed sensing ultrasound imaging method based on the sparsity in frequency domain is presented in order to reduce huge amount of data and large numbers of receiving ***,the sparsity in frequency domain is *** the echo signal is compressively sampled in time-spatial domain based on compressed sensing and the echo signal is reconstructed by solving an optimization *** the image is made by using the synthetic transmit aperture *** experiments based on point target and fetus target are used to verify the proposed *** MSE,resolution and image quality of reconstructed image and those of original image are compared and *** results show that only 30%amount of data and 50%of receiving channels were used to implement ultrasound imaging without reducing the quality of image in *** amount of data and the complexity of system are reduced greatly by the proposed method based on compressed sensing.

关键词： The application of compressed sensing in synthetic transmit aperture medical ultrasound imaging

Evaluation approaches of fish swimming performance

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences 2014年第2期5卷 106-113页

作者： Fukun Gui ping Wang Changwen wu Zhejiang Key Lab of Marine Aquaculture Facili-ties and Engineering Technology Zhejiang Ocean University Zhoushan China

Swimming speeds are the most important index for the evaluation of the fish swimming performance. The terminologies and classifications of the fish swimming performance were summarized in this paper. Taking into consideration of the widely used evaluation approaches of the fish swimming performance by different researchers, a recommended classification methodology of the fish swimming performance was proposed by the authors. And a new concept of the swimming speed, the Maximum Domed Swimming Speed (DSS), was introduced into this new classification framework together with a discussion on its calculation method and the practical significance. According to the classification system, the fish swimming speeds are classified into five categories: Optimum Swimming Speed, Maximum Sustained Swimming Speed, Critical Swimming Speed, Maximum Domed Swimming Speed, and Burst Swimming Speed. Other concepts of swimming speeds are generally merged into the above five categories, respectively. Furthermore, possible relevancies among the Maximum Sustained Swimming Speed (MSS), the Critical Swimming Speed (CSS), and the Maximum Domed Swimming Speed (DSS) were discussed. It was concluded that these three swimming speeds, in a sense, can be regarded as the equivalent indices for the evaluation of fish swimming performance.

关键词： Swimming performance Optimum Swimming Speed Maximum Sustained Swimming Speed Critical Swimming Speed Maximum Domed Swimming Speed Burst Swimming Speed

SiO_(2)溅射功率对Fe_(40)Co_(40)B_(20)-SiO_(2)软磁纳米颗粒膜磁性能的影响

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

磁性材料及器件 2024年第2期55卷 1-4页

作者：蒋云川余忠李启帆邬传健蒋晓娜孙科兰中文电子科技大学材料与能源学院四川成都610054

用磁控溅射法沉积Fe_(40)Co_(40)B_(20)-SiO_(2)软磁纳米颗粒膜,对其微观结构和磁性能进行了分析。研究发现,随着SiO_(2)溅射功率的增高,Fe_(40)Co_(40)B_(20)-SiO_(2)薄膜粗糙度、截止频率、磁导率、饱和磁化强度均降低,薄膜电阻率增... 详细信息

用磁控溅射法沉积Fe_(40)Co_(40)B_(20)-SiO_(2)软磁纳米颗粒膜,对其微观结构和磁性能进行了分析。研究发现,随着SiO_(2)溅射功率的增高,Fe_(40)Co_(40)B_(20)-SiO_(2)薄膜粗糙度、截止频率、磁导率、饱和磁化强度均降低,薄膜电阻率增大。在SiO_(2)溅射功率为500 W时,Fe_(40)Co_(40)B_(20)-SiO_(2)薄膜电阻率高达1973μΩ·cm,且截止频率也高达3.67 GHz。相较于未添加SiO_(2)的薄膜,其电阻率有了显著提升,且同样拥有较高的截止频率。因此,通过该方法制备的Fe_(40)Co_(40)B_(20)-SiO_(2)薄膜可有效应用于GHz频段的软磁薄膜电感。

关键词： Fe_(40)Co_(40)B_(20)-SiO_(2)薄膜磁控溅射 SiO_(2)溅射功率磁性能电阻率截止频率

早期运用郑氏卧位康复操联合补元汤对慢性阻塞性肺疾病急性加重期患者肺康复的疗效研究

在线全文

学校读者我要写书评

暂无评论

江西中医药大学学报 2024年第2期36卷 46-50页

作者：黄春燕吴亚辉王玉龙张芬芬郑鹏飞兰智慧江西中医药大学南昌330004 江西中医药大学附属医院南昌330006

目的:观察早期运用郑氏卧位康复操联合补元汤对慢性阻塞性肺疾病急性加重期(AECOPD)患者的临床疗效。方法:选取符合纳入标准的AECOPD患者,整群随机分为观察组(n=30)和对照组(n=31)。2组患者均依据《慢性阻塞性肺疾病诊治指南》(2021年... 详细信息

目的:观察早期运用郑氏卧位康复操联合补元汤对慢性阻塞性肺疾病急性加重期(AECOPD)患者的临床疗效。方法:选取符合纳入标准的AECOPD患者,整群随机分为观察组(n=30)和对照组(n=31)。2组患者均依据《慢性阻塞性肺疾病诊治指南》(2021年修订版)治疗方案予以规范的抗感染及相关药物治疗;观察组在规范治疗的基础上予以郑氏卧位康复操锻炼(入院第3天)联合补元汤(入院后由实证转虚证或以虚证为主时)进行肺康复治疗,肺康复治疗周期均从入院第3天开始计算,持续28 d。分别在第1天、第32天对2组患者的肺功能指标用力肺活量(FVC)、第1秒用力肺活量(FEV1)进行检测,采用慢性阻塞性肺疾病评估测试(CAT)和6 min步行距离(6MWD)检测2组患者的自主症状评分和运动耐力,检测2组患者的中医证候评分。结果:治疗前,2组患者的基线情况比较差异无统计学意义(P>0.05);治疗28 d后,观察组患者的FVC、FEV1、CAT评分、6MWD、中医证候积分及上述指标的治疗前后变化差值均较对照组显著改善(P<0.05)。结论:早期运用郑氏卧位康复操联合补元汤可以改善AECOPD患者的肺功能、运动耐力、生活质量和中医证候。

关键词：慢性阻塞性肺疾病急性加重期郑氏卧位康复操补元汤肺康复中医证候

Development and validation of a deep learning model to screen hypokalemia from electrocardiogram in emergency patients

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2021年第19期134卷 2333-2339页

作者： Chen-Xi Wang Yi-Chu Zhang Qi-Lin Kong Zu-Xiang wu ping-ping Yang Cai-Hua Zhu Shou-Lin Chen Tao wu Qing-Hua wu Qi Chen Department of Cardiovascular Medicine The Second Affiliated Hospital of Nanchang UniversityNanchang University School of MedicineNanchangJiangxi 330006China Department of Anesthesiology The Second Affiliated Hospital of Nanchang UniversityNanchang University School of MedicineNanchangJiangxi 330006China

Background:A deep learning model(DLM)that enables non-invasive hypokalemia screening from an electrocardiogram(ECG)may improve the detection of this life-threatening *** study aimed to develop and evaluate the performance of a DLM for the detection of hypokalemia from the ECGs of emergency ***:We used a total of 9908 ECG data from emergency patients who were admitted at the Second Affiliated Hospital of Nanchang University,Jiangxi,China,from September 2017 to October *** DLM was trained using 12 ECG leads(lead Ⅰ,Ⅱ,Ⅲ,aVR,aVL,aVF,and V1–6)to detect patients with serum potassium concentrations<3.5 mmol/L and was validated using retrospective data from the Jiangling branch of the Second Affiliated Hospital of Nanchang *** blood draw was completed within 10 min before and after the ECG examination,and there was no new or ongoing infusion during this ***:We used 6904 ECGs and 1726 ECGs as development and internal validation data sets,*** addition,1278 ECGs from the Jiangling branch of the Second Affiliated Hospital of Nanchang University were used as external validation data *** 12 ECG leads(leads Ⅰ,Ⅱ,Ⅲ,aVR,aVL,aVF,and V1–6),the area under the receiver operating characteristic curve(AUC)of the DLM was 0.80(95%confidence interval[CI]:0.77–0.82)for the internal validation data *** an optimal operating point yielded a sensitivity of 71.4%and a specificity of 77.1%.Using the same 12 ECG leads,the external validation data set resulted in an AUC for the DLM of 0.77(95%CI:0.75–0.79).Using an optimal operating point yielded a sensitivity of 70.0%and a specificity of 69.1%.Conclusions:In this study,using 12 ECG leads,a DLM detected hypokalemia in emergency patients with an AUC of 0.77 to *** intelligence could be used to analyze an ECG to quickly screen for hypokalemia.

关键词： Deep learning Hypokalemia Electrocardiogram Artificial intelligence

Experimental investigation on the radiation background inside body counters

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2022年第2期33卷 66-78页

作者： Yu Wang Yuan-Yuan Liu Bin wu Xiang-Peng Meng Jian-ping Cheng Ying Wang Li-Jiao Wang Yun-Shi Xiao Qin-Jian Cao Jian-Feng Zhang Fei Tuo Key Laboratory of Beam Technology of Ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China Department of Nuclear Safety China Institute of Atomic EnergyBeijing 102413China Department of Health Physics China Institute for Radiation ProtectionTaiyuan 030006China National Institute for Radiological Protection Chinese Center for Disease Control and PreventionBeijing 100088China

In vivo measurement of radioactivity based on various body counters is arguably the leading measure used to determine the distribution and activity of radionuclides in human subjects,such as I-131 in the thyroid,Am-241 in the lungs,and Pb-210 in the *** the measurements,the radiation background is the key factor that determines the sensitivity of the ***,to facilitate in vivo measurements,a well-designed shielding room is required to create a low-background ***,because the compositions of the radiation background are quite complicated,the respective contributions from each source remain obscure,which places a considerable burden on seeking an optimized design of shielding rooms that strikes the optimum balance between the construction cost and background suppression *** this study,we conducted a systematic experimental investigation on the radiation background outside and inside four representative body counters with assorted designs using a variety of radiation detectors,including high-purity germanium detectors,CdZnTe detector,radon emanometer,and gamma-ray *** carefully controlling the experimental conditions and synergetic analysis of the measurement results,in conjunction with previous studies,we separated and determined the relative contributions induced by environmental radiation(4%),airborne radon and its daughters(2%),the normal radioactivity of human subjects arising from K-40(58%),cosmic rays(12%),and radioactivity in shielding materials and measuring instruments(24%).Furthermore,based on these results,we discuss practical guidelines to design a shielding room for body counters.

关键词： Body counter Radiation background Shielding room In vivo measurement

The radiation response of androgen-refractory prostate cancer cell line C4-2 derived from androgen-sensitive cell line LNCaP

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2010年第3期12卷 405-414,I0011页

作者： Bang-Xiang Xie Hui Zhang lan Yu Jian Wang Bo Pang Rui-Qin wu Xiao-Long Qian Shan-Hu Li Qing-Guo Shi Le-Le Wang Jian-Guang Zhou Laboratory of Molecular Biology of Medicine Beijing Institute of Bioteehnology Beijing 100850 China National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing 100052 China

Radiation therapy is a relatively effective therapeutic method for localized prostate cancer （PCa） patients. However, radioresistance occurs in nearly 30% of patients treated with potentially curative doses. Therapeutic synergy between radiotherapy and androgen ablation treatment provides a promising strategy for improving the clinical outcome. Accordingly, the androgen deprivation-induced signaling pathway may also mediate radiosensitivity in PCa cells. The C4-2 cell line was derived from the androgen-sensitive LNCaP parent line under androgen-depleted condition and had acquired androgen-refractory characteristics. In our study, the response to radiation was evaluated in both LNCaP and C4-2. Results showed that C4-2 cells were more likely to survive from irradiation and appeared more aggressive in their resistance to radiation treatment compared with LNCaP, as measured by clonogenic assays and cell viability and cell cycle analyses. Gene expression analyses revealed that a set of genes involved in cell cycle arrest and DNA repair were differentially regulated in LNCaP and C4-2 in response to radiation, which was also consistent with the radiation-resistant property observed in C4-2 cells. These results strongly suggested that the radiation-resistant property may develop with progression of PCa to androgen- independent status. Not only can the LNCaP and C4-2 PCa progression model be applied for investigating androgen-refractory progression, but it can also be used to explore the development of radiation resistance in PCa.

关键词： LNCaP C4-2 prostate cancer radiation response

Various models of atrial fibrillation induced by acetylcholine and its application in the field of traditional Chinese medicine

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

TMR Modern Herbal Medicine 2018年第2期1卷 72-78页

作者： Qin Zhang ping Wang Lin wu The Key laboratory of Chinese internal medicine of MOE BUCM Beijing China Tianjin University of Traditional Chinese Medicine. Tianjin China The first Hospital of Peking University Beijing China

Atrial fibrillation is of public health importance and profoundly increases morbidity, mortality and health-related expenditures. Morbidities include the increased risks of cardiovascular outcomes such as heart failure and stroke, and the deleterious effects on quality of life, functional status and cognition. Our purpose is to understand the molecular mechanism of atrial fibrillation, a model under pathological conditions should be established. Acetylcholine, a neurotransmitter in the vagus nerve, has been established with numerous atrial fibrillation models. We will discuss the established model of atrial fibrillation which induced by acetylcholine, aiming to seek a model which are more close to the clinical condition. The underlying mechanisms will be discussed in order to observe the mechanism of antiarrhythmic drugs.

关键词： Acetylcholine Atrial fibrillation In vivo model In vitro model