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达州市某河流型库区富营养化调查与评价

绿色科技 2024年第6期26卷 129-132,137页

作者：李黎明叶建桥周礼川黄梅四川省达州生态环境监测中心站四川达州635000

达州市大多地区以河流型库区作为饮用水源地,春季藻类易大量繁殖使水体产生富营养化,威胁饮用水安全。为保障饮用水安全,在某河流型库区饮用水水源地布设5个监测点位,在春季连续3天对水温、溶解氧、总氮、总磷、高锰酸盐指数、透明度和... 详细信息

达州市大多地区以河流型库区作为饮用水源地,春季藻类易大量繁殖使水体产生富营养化,威胁饮用水安全。为保障饮用水安全,在某河流型库区饮用水水源地布设5个监测点位,在春季连续3天对水温、溶解氧、总氮、总磷、高锰酸盐指数、透明度和叶绿素a进行采样分析。统计分析结果后采用综合营养状态指数法进行水体营养状态评价,发现调查监测期间库区处于轻度富营养状态,引起富营养状态的主要原因是充足氮磷营养源。建议采取减少向库区输入氮磷营养源及加强水体置换降低水体富营养化水平。

关键词：河流型库区水源地富营养化调查评价

武汉市医学类专业男大学生对睾丸自检的意识和实践现状调查

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国际生殖健康／计划生育杂志 2024年第4期43卷 289-292,304页

作者：黄妹妹罗瑞君何素芬曹凤菊乐珊许雪琼武汉大学人民医院肿瘤中心 430000

目的:调查武汉市医学类专业男大学生对睾丸自检(testicular self-examination,TSE)的认识和实践现状,并探讨TSE认识和实践之间的关联。方法:采用方便抽样法抽取武汉大学第一临床学院和第二临床学院、武昌理工学院健康与护理学院、武汉... 详细信息

目的:调查武汉市医学类专业男大学生对睾丸自检(testicular self-examination,TSE)的认识和实践现状,并探讨TSE认识和实践之间的关联。方法:采用方便抽样法抽取武汉大学第一临床学院和第二临床学院、武昌理工学院健康与护理学院、武汉城市学院医学部和湖北中医药大学2023年1—11月在校男医学生500例,通过汉化的TSE意识量表分析医学类专业男大学生的TSE意识、实践、知识现状和影响TSE实践的障碍和促进因素。结果:500名受访者的平均年龄为(21.93±1.72)岁,仅45.4%的学生听说过TSE。在TSE意识方面,受访者中31.3%认为全部男性应该了解TSE,57.7%认为TSE有助于睾丸癌的早期诊断,43.6%认为男性应该在21~25岁之间开始TSE,52.9%的学生不知道TSE的最佳频率。在TSE实践方面,只有37.4%的学生平时做过TSE,但只有22.5%定期练习,22.0%的学生知道TSE的流程和步骤。在TSE知识方面,有4个条目的正确率达50%以上,其余5个条目的正确率均小于50%。在影响TSE实践的障碍和促进因素方面,对于大多数受访者来说,阻碍TSE的障碍是害怕发现肿块、觉得TSE很尴尬,并觉得老年男性才应该进行该检查。结论:有必要在医学类专业学生的培训中强调TSE的重要性,使这些学生掌握TSE的健康知识和技能,并鼓励男生定期进行TSE,更好地促进其在公共健康教育中的社会效应。

关键词：院校,医学学生睾丸肿瘤组织和管理健康教育睾丸自检

Oscillation of High Order Neutral Delay Difference Equations with Continuous Arguments

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Journal of Mathematical Research and Exposition 2010年第2期30卷 374-380页

作者： mei huang Jian Hua SHEN Department of Mathematics and Physics Hunan First Normal College Hunan 410002 P. R. China College of Mathematics and Computer Science Hunan Normal University Hunan 410081 P. R. China

In this paper, we study oscillation of solutions for a class of high order neutral delay difference equations with variable coefficients -τm [x（t） - c（t）x（t - τ）] = （-1）mp（t）x（t - σ）, t ≥ t0 〉 0. Some... 详细信息

关键词： delay difference equation bounded solution oscillation nonoscillation.

功能性不射精症行为治疗模式探索及疗效影响因素分析

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中华男科学杂志 2024年第3期30卷 224-228页

作者：范宇平黄文强刘斌雅马萌萌黄媚媛郑锦霞滕晓明同济大学附属第一妇婴保健院生殖医学中心

目的:回顾性分析门诊主诉为性行为不射精、但自慰可射精的功能性不射精患者，观察自慰方式改变结合性行为过程中增加视听刺激的改良行为治疗模式对功能性不射精症的疗效，并分析功能性不射精行为治疗的影响因素。方法:选择2019年8月至2... 详细信息

目的:回顾性分析门诊主诉为性行为不射精、但自慰可射精的功能性不射精患者，观察自慰方式改变结合性行为过程中增加视听刺激的改良行为治疗模式对功能性不射精症的疗效，并分析功能性不射精行为治疗的影响因素。方法:选择2019年8月至2021年5月在上海市第一妇婴保健院男科门诊就诊的功能性不射精患者，按行为治疗改良前后分为两组，比较两组患者的疗效差异，研究行为治疗模式改良疗效。研究年龄、禁欲时间变化病程、性行为前禁欲时间、有否采用视听刺激及体位改变、双侧睾丸大小均值以及生殖激素水平，与功能性不射精行为治疗结果的相关性。结果:完成治疗患者共计59例，治疗后性行为中成功射精≥1次的患者有22例(37.29%)。其中改良前行为治疗39例，在治疗后性行为中成功射精≥1次的患者11例(28.21%),改良行为治疗20例，在治疗后性行为中成功射精≥1次的患者11例(55.00%)。改良行为治疗和改良前行为治疗患者的有效率呈现显著差异(P<0.05)。在行为治疗的多个模式中，通过站立位自慰和性行为完成射精的行为治疗模式及行为治疗过程中自慰频率降低与功能性不射精症治疗疗效相关(P<0.05)。结论:采用改良行为治疗模式对功能性不射精患者有一定治疗效果。针对不射精针的先前事件是功能性不射精症行为治疗的关键，因此进一步探索更有效的行为治疗模式将成为功能性不射精行为治疗的发展方向。

关键词：不射精症自慰行为疗法视听刺激

Extracts of Bauhinia Championii Alleviate Acute Neuronal Injury After Ischemic Reperfusion by Improving Endoplasmic Reticulum Stress-Mediated Neuronal Apoptosis

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Current Medical Science 2022年第3期42卷 483-490页

作者： mei huang Zi-xi LI Juan CHEN Ling CHEN Yuan-yuan LI Department of Pediatrics Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Laboratory Medicine Affiliated Hospital of Chinese and Western MedicineTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Biochemistry and Molecular Biology School of Basic MedicineTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China School of Pharmacy Hangzhou Medical CollegeHangzhou 310053China

Objective Cerebral ischemia/reperfusion(I/R)is a potential factor for lethal injury,and currently lacks effective *** championii extracts(BCEs)have been reported to exhibit anti-oxidative and anti-hypoxia *** current work aimed to study whether BCE could alleviate neuronal injury caused by I/*** To investigate the protective effects of BCE,oxygen-glucose deprivation/reperfusion(OGD/R)was applied to the HT22 cell line in vitro and to a cerebral I/R mouse model in *** Under OGD/R,the survival of HT22 cells was significantly prolonged after treatment with *** vivo,BCE significantly reduced the infarct area and decreased neuronal apoptosis caused by I/*** was further found that OGD/R could trigger endoplasmic reticulum(ER)stress and induce ER stress-mediated neuronal apoptosis in vivo and in vitro,while BCE could effectively alleviate ER stress and neuronal *** These results suggested that BCE exhibits neuroprotective effects by reducing ER stress-mediated apoptosis after cerebral I/R *** may therefore be an effective therapeutic regimen against cerebral I/R damage.

关键词： Bauhinia championii extraction ischemia/reperfusion injury endoplasmic reticulum stress neuron apoptosis

Efficacy of minimally invasive therapies on unresectable pancreatic cancer

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Chinese Journal of Cancer 2013年第6期32卷 334-341页

作者： Zhi-mei huang Chang-Chuan Pan Pei-Hong Wu Ming Zhao Wang Li Zi-Lin huang Rui-Yang Yi State Key Loboratory of Oncology in South China Sun Yat-sen University Cancer Center Division of Medical Imaging and Interventional Radiology Sun Yat-sen University Cancer Center Medical Oncology Sichuan Cancer Hospital & Institute The Second People' s Hospital of Sichuan Province Undergraduate College The University of Chicago

For patients with unresectable pancreatic cancer, current chemotherapies have negligible survival benefits. Thus, developing effective minimally invasive therapies is currently underway. This study was conducted to evaluate the efficacy of transarterial chemoembolization plus radiofrequency ablation and/or 125 I radioactive seed implantation on unresectable pancreatic cancer. We analyzed the outcome of 71 patients with unresectable pancreatic carcinoma who underwent chemoembolization plus radiofrequency ablation and/or radioactive seed implantation. Of the 71 patients, the median survival was 11 months, and the 1-, 2-, and 3-year overall survival rates were 32.4%, 9.9%, and 6.6%, respectively. Patients who had no metastasis, who had oligonodular liver metastases (≤3 lesions), and who had multinodular liver metastases (>3 lesions) had median survival of 12, 18, and 8 months, respectively, and 1-year overall survival rates of 50.0%, 68.8% , and 5.7% , respectively. Although the survival of patients without liver metastases was worse than that of patients with oligonodular liver metastasis, the result was not significant (P = 0.239). In contrast, the metastasis-negative patients had significantly better survival than did patients with multinodular liver metastases (P<0.001). Patients with oligonodular liver lesions had a significanthg longer median survival than did patients with multinodular lesions (P<0.001). In conclusion, combined minimally invasive therapies had good efficacy on unresectable pancreatic cancer and resulted in a good control of liver metastases. In addition, the number of liver metastases was a significant factor in predicting prognosis and response to treatment.

关键词：疗效观察胰腺癌治疗手术切除射频消融肝动脉肝脏病变生存期

滇中地区不同种植密度青贮玉米的主要农艺性状、产量和质量变化

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中国奶牛 2024年第1期 58-61页

作者：黄梅芬杨洋薛世明杨世平廖祥龙张美艳云南省草地动物科学研究院昆明650212 云南省农业职业技术学院昆明650212

为了探讨不同种植密度对青贮玉米的农艺性状、产量和质量的影响,在滇中地区以推广较多的曲晨9号为供试材料,开展6株/m^(2)(低密度)、9株/m^(2)(中等密度)和12株/m^(2)(高密度)三个种植密度的试验研究。结果表明:高密度种植青贮玉米的群... 详细信息

为了探讨不同种植密度对青贮玉米的农艺性状、产量和质量的影响,在滇中地区以推广较多的曲晨9号为供试材料,开展6株/m^(2)(低密度)、9株/m^(2)(中等密度)和12株/m^(2)(高密度)三个种植密度的试验研究。结果表明:高密度种植青贮玉米的群体干物质产量比低密度的提高12.3%,并且高密度种植模式中的单株节数、叶片数和枯叶数也比低密度处理的单株分别增加9.98%(P0.05)和126.92%(P0.05)、38.80%(P<0.01)、16.38%(P<0.05)和26.88%~38.79%(P<0.05)。在营养成分方面:高密度种植青贮玉米的粗蛋白、中性洗涤纤维、酸性洗涤纤维和酸性木质素分别比低密度种植的青贮玉米低了1.7%、21.51%、22.14%和56.79%。表明增加种植密度可有效地增加单位面积青贮玉米群体的干物质产量,增加单株的叶片数和节数,但是降低单株的株高、穗叶面积、不同位叶干重和基部茎宽,并有效地降低中性洗涤纤维、酸性洗涤纤维和酸性木质素的含量。建议在种植青贮玉米时一定在关注单株农艺性状的变化和群体养分含量变化同时,通过合理密植获得单位面积的高产和优质的青贮玉米,同时避免植株倒伏等因素引起的减产。

关键词：青贮玉米种植密度农艺性状产量品质

Identifying the core competencies of backup nurses in the acute care hospital through a modified Delphi process

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Frontiers of Nursing 2022年第1期9卷 37-45页

作者： Yan-Ying Feng Guang Shi Xi-mei huang Department of Nursing Administration Guangzhou Panyu Central HospitalGuangzhouGuangdong 511400China

Background:The backup nurses are created to meet emergencies in the case of inadequate nursing staff and emergency circumstances,and there are no clear definitions of the core competencies for training and evaluation of backup nurses in the acute care hospitals in ***:This study used a modified Delphi process where an initial list of potential competencies is established following a framework of training need analysis(TNA),literature review,and focus *** process generated as a list of 47 core competencies,which is presented to an expert panel(n=20)for consideration in two ***:As determined by the survey,a combination of 26 core competencies in three specified categories is identified:professional practice ability,critical thinking ability,and interpersonal skills.A total of 154.99 h is required to complete all 26 core competencies,and each item has a corresponding evaluation ***:The core competencies provide a scientific basis for the hospital nursing managers to train and evaluate backup nurses,and it may ensure consistency in standards across the country.

关键词： acute care hospital core competencies Delphi emergencies nurses

Improved length of calcium sulfate crystal seeds and whiskers via ball milling and hydration treatment

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Chinese Journal of Chemical Engineering 2024年第7期71卷 102-109页

作者： Yuke Li Yuxin Liu Jizhen huang Yi mei Faculty of Chemical Engineering Kunming University of Science and TechnologyKunming 650500China Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming University of Science and TechnologyKunming 650500China

Elucidating the effect of growth periods on the quality of calcium sulfate whiskers(CSWs)prepared from calcium sulfate dihydrate(DH)is ***,crystal seeds and whiskers were prepared from DH in a water–glycerol *** whiskers were obtained from crystal seeds prepared via hydration of DH for 30 s than via ball milling for 5 min followed by hydration for 20 *** attachment of cetyltrimethyl ammonium bromide and glycerol additives to the whisker tops promoted whisker *** whisker sponges exhibited good thermal barrier properties and compression cycle stability.

关键词： Hemihydrate gypsum whisker Hydration Ball milling/hydration Crystal seed Growth process