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大白菜气调贮藏研究

北京农业大学学报 1990年第4期16卷 399-404页

作者：冯双庆 e.C.Lougheed 北京农业大学北京农业大学北京农业大学加拿大圭尔夫大学

研究了 Snow Spring 大白菜(Brassica pekinesis)(日本品种)在0℃和4℃下,不同 O_2%和 CO_2%配比对减少大白菜贮藏损失的影响和气调贮藏中所发生的生理失调。结果表明:气调贮藏的效果受气体成分、温度和贮藏时间长短的综合影响。在0℃和... 详细信息

研究了 Snow Spring 大白菜(Brassica pekinesis)(日本品种)在0℃和4℃下,不同 O_2%和 CO_2%配比对减少大白菜贮藏损失的影响和气调贮藏中所发生的生理失调。结果表明:气调贮藏的效果受气体成分、温度和贮藏时间长短的综合影响。在0℃和4℃下,本实验的各种气体成分中贮藏70d 的大白菜的总损失未出现显著差异,但贮藏112d 后,0℃下2%O_2-1%CO_2和4%O_2-1%CO_2的气体成分可以明显降低大白菜的贮藏损耗,前者较后者的效果更好。大白菜的叶脉褐变仅在0℃发生而且不受气体成分的影响。在0℃下贮藏112d 水浸斑出现,其严重程度主要与 CO_2浓度有关,5%CO_2水浸斑最严重。大白菜贮藏前在20℃的呼吸强度平均值为:12.80mL/kg/h,贮藏后各处理的呼吸强度稍有增加,2%O_2-5%CO_2中白菜因腐烂严重,呼吸强度高达24.75mL/kg/h。贮藏前后的乙烯释放量几乎没有差异,贮藏中未见脱帮现象。

关键词：大白菜气调贮藏乙烯生理失调

C-反应蛋白水平与女性结肠直肠癌发病风险增高无关

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世界核心医学期刊文摘（胃肠病学分册） 2005年第8期1卷 1-2页

作者： Buring J.e. Lee I.-M 朱国栋

Background: Observations that risk for colorectal cancer is elevated in patien ts with inflammatory bowel disease and that long-term use of anti-inflammatory drugs may reduce colorectal cancer risk have raised the possibility that inflam mation may play a role in the development of colorectal cancer. While a recent p rospective study observed a positive association between C-reactive protein(CRP ), a marker of inflammation, and risk for colon cancer, data testing this hypoth esis are sparse. Objective:To evaluate whether plasma CRP levels predict colorec tal cancer risk in women. Design: Prospective cohort study, with 97%morbidity f ollow-up and 100%mortality follow-up within the past 2 years. Setting:Women’ s Health Study. Participants: 27 913 apparently healthy women age 45 years or ol der who had CRP measured at entry into a trial of low-dose aspirin and vitamin e. Maximum length of intervention and follow-up was 10.8 years. Measurements: S elf-reported incident colorectal adenocarcinoma confirmed by medical record rev iew. Results: 169 women de- veloped colorectal adenocarcinomas during follow-up. Baseline CRP levels were not significantly associated with colorectal cancer risk. The multivariate haza rd ratios according to cutoff points for CRP proposed in clinical guidelines wer e 0.79 (95%CI, 0.53 to 1.17) for the category of 1 to 3 mg/L and 0.66 (CI, 0.43 to 1.03) for the category of greater than 3 mg/L (P for trend = 0.09), as compa red with the category of less than 1 mg/L. High CRP levels were also not associa ted with increased risk in analyses done according to tumor location and stage a t diagnosis,according to alternative cutoff points for CRP, or in any of the sub groups evaluated. Limitations: Despite multivariate analysis, residual confoundi ng might still be present. Although this study was prospective, we cannot comple tely exclude undetected cancer at ***- ements for CRP were available for only 71%of women in the cohort; however, th e

关键词：结肠直肠癌 C-反应蛋白发病风险结肠癌结肠直肠腺癌炎症性肠病炎症反应前瞻性队列研究抗炎药物临床指南

地屈孕酮治疗围绝经期功能失调性子宫出血临床研究

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系统医学 2017年第9期2卷 96-99页

作者：夏鄂雁郧西县妇幼保健院妇幼保健院妇科湖北十堰442600

目的研究围绝经期功能失调性子宫出血(功血)患者采用地屈孕酮治疗的临床效果分析。方法临床纳入106例该院2014年4月—2016年4月妇科收治的围绝经期功血患者作为研究对象。根据随机数字表法分为两组各53例。其中53例患者采用米非司酮治... 详细信息

目的研究围绝经期功能失调性子宫出血(功血)患者采用地屈孕酮治疗的临床效果分析。方法临床纳入106例该院2014年4月—2016年4月妇科收治的围绝经期功血患者作为研究对象。根据随机数字表法分为两组各53例。其中53例患者采用米非司酮治疗作为对照组,另53例患者给予地屈孕酮治疗作为观察组。观察两组患者治疗效果、止血效果、性激素水平及不良反应。结果观察组治疗总有效率高达96.23%,高于对照组的84.91%,(P0.05);治疗后观察组子宫内膜厚度、血红蛋白浓度及性激素水平分别为(4.14±0.83)mm、(119.12±13.07)g/L、(6.42±1.14)U/L、(5.86±2.13)umol/L以及(43.97±4.62)U/L,优于对照组的(6.59±1.06)mm、(110.24±12.64)g/L、(11.43±1.58)U/L、(12.15±2.09)umol/L以及(29.56±2.89)U/L(P<0.05)。观察组不良反应发生率仅7.55%,低于对照组的16.98%(P<0.05)。结论地屈孕酮对围绝经期功血治疗效果显著,缩短止血时间,改善性激素水平,不良反应少,值得临床应用及推广。

关键词：地屈孕酮围绝经期功能失调性子宫出血疗效

包覆层对SZQu推进剂安定性及相容性的影响

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固体火箭技术 2015年第6期38卷 853-856页

作者：李晨路桂娥江劲勇葛强王韶光贾昊楠军械工程学院石家庄050003 军械技术研究所石家庄050003

采用75℃热加速老化试验和气相色谱试验,分别对裸药和带包覆层的SZQu推进剂进行测试,确定了安定性、中定剂质量分数随老化时间的变化规律;在升温速率β=5℃/min的条件下,采用差示扫描量热法（DSC）对老化7、54 d的裸药、包覆层和带包覆... 详细信息

采用75℃热加速老化试验和气相色谱试验,分别对裸药和带包覆层的SZQu推进剂进行测试,确定了安定性、中定剂质量分数随老化时间的变化规律;在升温速率β=5℃/min的条件下,采用差示扫描量热法（DSC）对老化7、54 d的裸药、包覆层和带包覆层的推进剂进行测试,比较其分解峰温,以分解峰温差值ΔTp〈2℃为判据判断两者相容性状况。结果表明,包覆材料对该型双基推进剂贮存安定性影响不显著,推进剂和推进剂与包覆层混合试样的分解峰温介于195~198℃之间,分解峰温的差值小于2℃,包覆层与推进剂相容性良好。

关键词：分析化学双基推进剂包覆层贮存安定性相容性

与肠功能失调相关的肛门失禁亚型:临床、生理及社会心理方面的特征

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世界核心医学期刊文摘（胃肠病学分册） 2005年第4期1卷 19-20页

作者： Crowell M.D. Lacy B.e. Schettler V.A. 樊菁 Gastrointest. Physiol. and Motility Div. of Gastroenterol. and Hepatol. Mayo Clinic Scottsdale 13400 E. Shea Blvd. Scottsdale AZ 85259 United StatesDr.

BACKGROUND: We hypothesized that functional anal incontinence with no structur al explanation comprises distinct pathophysiologic subgroups that could be ident ified on the basis of the predominant presenting bowel pattern. MeTHODS: Consecu tive patients (n = 80) were prospectively grouped by bowel symptoms as 1) incont inence only, 2) incontinence +constipation, 3) incontinence +diarrhea, and 4) incontinence +alternating bowel symptoms. The Hopkins Bowel Symptom Questionnai re, the Symptom Checklist 90-R, and anorectal manometry were completed. ReSULTS : Significant group differences were found between subcategories of incontinent patients on the basis of symptoms. Abdominal pain was more frequent in patients with altered bowel patterns. Patients with alternating symptoms reported the hig hest prevalence of abdominal pain, rectal pain, and bloating. Basal anal pressur es were significantly higher in alternating patients (P = 0.03). Contractile pre ssures in the distal anal canal were diminished in the incontinent only and dia rrhea groups (P = 0.004). Constipated patients with incontinence exhibited eleva ted thresholds for the urge to defecate (P = 0.027). Dyssynergia was significant ly more frequent in patients with incontinence and constipation or alternating b owel patterns. CONCLUSIONS: Distinct patterns of pelvic floor dysfunction were i dentified in patient subgroups with anal incontinence, based on the presence or absence of altered bowel patterns. Physiologic assessments suggested different p athophysiologic mechanisms among the subgroups. The evaluation of patients with fecal incontinence should consider altered bowel function.

关键词：肛门失禁功能失调肠道症状社会心理肛门直肠测压交替性便时盆底功能直肠痛腹胀症状

用于检测癫痫患者eeG背景异常的新能谱指数

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世界核心医学期刊文摘（神经病学分册） 2005年第8期1卷 32-33页

作者： Temu in C.M. Tokaer A.B. Bilir e. 江山 Hacettepe University Inst. of Neurol. Sci. and PsychiatrySihhiye Ankara Turkey

Objective: In epileptic disorders, eeG background activity is disorganized in or near the epileptogenic focus and spectral eeG analysis(SeA) can provide usefu l information about the focus. We tried to develop a new spectral index from bas ic spectral parameters to detect the epileptic abnormalities at eeG background a ctivity. Methods: A new spectral eeG index,epileptic abnormality index(eAI), was constructed from frequency band power and power asymmetry *** the index,parameters were weigh- ted due to both conventional eeG knowledge and their power in discrimination h ealthy subjects from patients. eeG background activity from 99 epileptic patient s and 146 healthy subjects was examined both by eAI and by a conventional SeA me thod, by using z-scoring *** test results were compared with visual eeG interpretation of subjects. Results: In patient groups,eAI was most successf ul in lateralization of epileptic abnormalities. It was also helpful in discrimi nation of epileptic patients from normals in the case where visual eeG interpret ation was ‘normal’. Conclusions:eAI depends on basic spectral parameters and i t combines statistical methods and clinical knowledge about eeG. It increases th e analysis capacity of SeA in evaluation of eeG background activity. Significanc e: eAI is a new and useful approach in detection of eeG background abnormalities in epilepsy and its logical base can also be used in the detection of brain ele ctrical activity abnormalities other than epileptic disorders.

关键词：谱指数背景活动 eeG 癫痫病灶功率谱视觉判断健康受试者有效区分鉴别能力鉴别诊断

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超支化有机硅嵌段水性聚氨酯的合成及应用

印染助剂 2023年第3期40卷 24-28页

作者：高艳娥韩娟汪展王海峰管永华南通大学纺织服装学院江苏南通226019 泰州万诺纺织科技有限公司江苏泰州225330

以异佛尔酮二异氰酸酯(IPDI)、聚硅氧烷嵌段聚醚、二乙醇胺(DeA)作为原料,通过反应官能团异单体法制备了超支化有机硅嵌段水性聚氨酯抗起毛起球剂(HBP-SiWPU)。探究物料比对乳液性能的影响,采用FT-IR、^(13)C NMR对HBP-SiWPU进行表征;... 详细信息

以异佛尔酮二异氰酸酯(IPDI)、聚硅氧烷嵌段聚醚、二乙醇胺(DeA)作为原料,通过反应官能团异单体法制备了超支化有机硅嵌段水性聚氨酯抗起毛起球剂(HBP-SiWPU)。探究物料比对乳液性能的影响,采用FT-IR、^(13)C NMR对HBP-SiWPU进行表征;并对腈纶针织物进行抗起毛起球整理。结果表明:当预聚R值[预聚阶段n(—NCO)/n(—OH)]为4、超支化物料比[n(DeA)/n(预聚体)]为1.2时,HBP-SiWPU乳液稳定性较好;整理的腈纶针织物抗起毛起球性能为2~3级,与原布相比提升了1级,色差较小,手感较好。

关键词：水性聚氨酯超支化聚硅氧烷嵌段聚醚抗起毛起球性能

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300例痔病患者病因分析

中国肛肠病杂志 2008年第3期28卷 43-44页

作者：常峨李玉山东省泰安市协和医院肛肠科山东泰安271000 山东省泰山慢性病医院普外科

为总结分析痔病的常见病因，指导痔病防治，采用问卷调查和临床检查、诊断方法，收集300例痔病患者的临床资料进行统计学分析。结果显示，痔病患者主要病因中便秘占40．7％，慢性腹泻占12．0％，女性患者中妊娠原因占29．0％。常见不良... 详细信息

为总结分析痔病的常见病因，指导痔病防治，采用问卷调查和临床检查、诊断方法，收集300例痔病患者的临床资料进行统计学分析。结果显示，痔病患者主要病因中便秘占40．7％，慢性腹泻占12．0％，女性患者中妊娠原因占29．0％。常见不良生活习惯为嗜酒占49．7％，嗜辛辣食物占58．0％，蹲厕过久占60．0％。结果表明，主要病因和不良生活习惯与痔病互为因果形成恶性循环，应及早防治。

关键词：痔病因分析

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海水淡化产业外部成本经济性分析及实证研究

中国海洋大学学报（社会科学版） 2012年第4期 33-37页

作者：高波郭菊娥孟庆才西安交通大学管理学院陕西西安710049 山东科技大学经济管理学院山东青岛266510

随着我国经济的快速发展,部分城市供水短缺问题日益严重,海水淡化是缓解沿海地区水源紧张的有效途径。文中探析了海水淡化的外部性问题并建立了外部成本测算模型。外部成本主要指海水淡化过程中的能量消耗成本、浓盐水及淡化水利用后污... 详细信息

随着我国经济的快速发展,部分城市供水短缺问题日益严重,海水淡化是缓解沿海地区水源紧张的有效途径。文中探析了海水淡化的外部性问题并建立了外部成本测算模型。外部成本主要指海水淡化过程中的能量消耗成本、浓盐水及淡化水利用后污水的排放对环境的影响及使用海水水体的价值转换。基于资源外部成本、环境外部成本和机会成本理论分别给出了海水淡化外部成本的测算模型,并结合青岛百发海水淡化项目对其外部成本进行了实际测定(1.42元/m3),为海水淡化项目的全成本测算奠定了理论基础,对沿海城市发展海水淡化提供成本决策参考。

关键词：外部性海水淡化全成本