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以赤铁矿粉为有效促进剂的黄铜矿精矿酸浸

国外选矿快报 1998年第21期 16-18页

作者： e.c.桑切斯梅津良昭齐藤文良钱鞠梅日本东北大学素材工学研究所东北大学东北大学研究留学生教授素材工学研究所

在0.5mol/dm^3Hcl溶液中浸出比表面积约为3m^2/g的黄铜矿精矿是在333K温度下分别使用赤铁矿(Fe_2O_3)和氯化铁(Fecl_3)粉进行的。用Fe_2O_3粉浸出精矿可在24小时内提取约75%的铜。而使用Fecl_3粉可浸出约65%的铜。使用Fe_2O_3粉浸出时,... 详细信息

在0.5mol/dm^3Hcl溶液中浸出比表面积约为3m^2/g的黄铜矿精矿是在333K温度下分别使用赤铁矿(Fe_2O_3)和氯化铁(Fecl_3)粉进行的。用Fe_2O_3粉浸出精矿可在24小时内提取约75%的铜。而使用Fecl_3粉可浸出约65%的铜。使用Fe_2O_3粉浸出时,铜的产率是不用促进剂时的两倍或更多,当浸出后固体残渣表面形成大量元素硫时,则铜浸出率很高。尤其是使用Fe_2O_3粉比使用Fecl_3粉产生更多的元素硫沉淀物。因而,在使用Hcl溶液浸出黄铜矿精矿时,Fe_2O_3可能是更好的促进剂。

关键词：黄铜矿赤铁矿酸浸选矿矿粉促进剂

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精神分裂症高遗传风险人群的功能分离

世界核心医学期刊文摘（神经病学分册） 2005年第12期1卷 22-23页

作者： Whalley H.c. Simonotto e. Marshall I. 方伯言 Dr.Division of Psychiatry University of Edinburgh Royal Edinburgh Hospital Morningside Park Edinburgh EH10 5HF United Kingdom

Schizophrenia is a highly heritable psychotic disorder. It has been suggested that deficits of the established state arise from abnormal interactions between brain regions. We sought to examine whether such connectivity abnormalities would be present in subjects at high genetic risk for the disorder. Functional connectivity analysis was carried out on functional MRI images from 21 controls and 69 high risk subjects performing the Hayling sentence completion task; 27 high risk subjects reported isolated psychotic symptoms, the remaining high risk subjects and controls did not. There were no significant differences in task performance between the groups. Based on previous findings we hypothesized: (i) state-related differences in connectivity between dorsolateral prefrontal cortex and lateral temporal lobe; (ii) genetically mediated reductions in a medial prefrontal-thalamic-cerebellar network; and (iii)-inc.e.sed prefrontal-parietal connectivity in high risk subjects (to a greater extent in those with isolated psychotic symptoms). connectivity analysis was performed in two ways: with and without variance associated with task effects modelled and removed from the data. We did not find evidence to support our first hypothesis with either analysis method. However, consistent with hypothesis (ii), dec.e.sed connectivity between right medial prefrontal regions and contralateral cerebellum was found. This was only statistically significant in the analysis with task effects modelled and removed from the data. Finally, consistent with hypothesis (iii), inc.e.sed connectivity between the left parietal and left prefrontal regions in high risk subjects was found in both analyses. These results, all in a situation uncontaminated by the effects of anti-psychotic medication, performance differences and prolonged illness, suggest there are abnormalities in functional connectivity over and above those attributable to task effects in high risk subjects. These connectivity abnormaliti

关键词：精神病症状精神疾病抗精神病药效率模型性差异额叶前区连接性分析方法

在少数民族社区中护理管理对心力衰竭医疗质量的影响:一项随机试验

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世界核心医学期刊文摘（心脏病学分册） 2007年第12期3卷 3-4页

作者： Sisk J.e. Hebert P.L. Horowitz c.R. 黄欣 Division of Health care Statistics National Center for Health Statistics Centers for Disease Control and Prevention 3311 Toledo Road Hyattsville MD 20782 United States.Dr.

背景:虽然治疗被证实对收缩功能障碍性心力衰竭有效,该疾病仍然导致了相当多的住院、残疾和死亡,尤其是在非裔美国人和其他非白人种族中。目的:在门诊医疗的不同种族收缩功能障碍患者中,比较针对特殊管理问题的护理主导干预与常规护理... 详细信息

背景:虽然治疗被证实对收缩功能障碍性心力衰竭有效,该疾病仍然导致了相当多的住院、残疾和死亡,尤其是在非裔美国人和其他非白人种族中。目的:在门诊医疗的不同种族收缩功能障碍患者中,比较针对特殊管理问题的护理主导干预与常规护理的作用。设计:于2000年9月至2002年9月间进行的随机化有效性试验。地点:纽约哈林区的4所医院。

关键词：心力衰竭收缩功能障碍种族功能表现人种护理管理患者常规护理

两例无血缘关系的有白介素-12Rβ1-缺乏的斯洛伐克患儿感染播散性卡-格杆菌后接受试验性γ-干扰素治疗的不同结果

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世界核心医学期刊文摘（儿科学分册） 2005年第9期1卷 38-39页

作者： Ulrichs T. Fieschi c. Nevicka e. K. Frecerova 高蕊 Paediatric Pulmonology Department Natl. Inst. of TB and Resp. Diseases Krajinska 101 825 56 Bratislava Slovakia

Mycobac.e.ium bovis Bacillus calmette-Guerin (BcG) is an attenuated live vaccine that may cause life-threatening clinical disease in children with impaired immunity. In particular, patients with any of the nine known inherited disorders of the interleukin-12/23 interferon-γ (IL-12/23-IFNγ ) axis are highly vulnerable to BcG. We describe two unrelated young Slovakian children suffering from disseminated BcG infection which developed shortly after routine BcG vaccination after birth. During treatment with selec.e. anti-BcG antibiotics, resistance against several of these drugs developed. In both children, interleukin-12/23 receptor β 1 (IL-12/23Rβ 1) defic.e.cy was diagnosed. Thus, in addition to c.e.otherapy, immunomodulatory treatment with recombinant IFN-γ was performed as the pathogenesis of BcG disease in IL-12Rβ 1 defic.e.cy involves impaired IL-12-and IL-23-dependent IFN-γ production by lymphocytes. One child responded to treatment and is presently doing well whereas the second patient died. conclusion: The marked variability of outcome of disseminated Bacillus calmette-Guerin disease in interleukin-12/23 receptor β 1-defic.e.t children sharing the same ethnic origin and exposed to a similar environment as presented in these case reports has to be taken into consideration for diagnosis and treatment of infections due to this genetic defect.

关键词： γ-干扰素播散性血缘关系分枝杆菌属缺乏症免疫缺陷性疾病疫苗接种遗传性缺陷受体β 致死性疾病

A new early c.e.aceous dinosaur track assemblage and the first definite non-avian theropod swim trackway from china

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chinese Sc.e.ce Bulletin 2013年第19期58卷 2370-2378页

作者： XING LiDa LOcKLeY Martin G ZHANG JianPing MILNeR Andrew R c KLeIN Hendrik LI DaQing PeRSONS IV W Scott eBI JieFang School of the earth Sc.e.ces and Resources China University of Geosciences Department of Biological Sc.e.ces University of Alberta 11455 Saskatchewan DriveEdmontonAlberta T6G 2E9Canada Dinosaur Tracks Museum University of Colorado Denver St. George Dinosaur Discovery Site at Johnson Farm 2180 East Riverside DriveUtah 84790USA Saurierwelt Pal ontologisc.e. Museum Alte Richt 7D-92318 NeumarktGermany Geological Museum of Gansu Zhaojue county Bureau of culture MultimediaPress & Sport Tourism

The trackway of a swimming theropod (ichnogenus characichnos) is reported from the Lower c.e.aceous Feitianshan Formation of Sichuan, china. These swim tracks help confirm that non-avian theropods were capable of forging moderately deep bodies of water. The trackway occurs on the same surface as a typical walking trackway of a sauropod (ichnogenus Brontopodus). Both occurrences are the first reported from the c.e.aceous of Sichuan, and the swim tracks are the first well-preserved example of a characichnos trackway from china. Additionally, a theropod walking trackway and several ornithopod walking trackways (similar to the ichnogenus caririchnium) occur in the same horizon. The ornithopod trackways show a parallel orientation, suggesting gregarious behavior of the trackmakers, which may have been iguanodontiforms and/or hadrosauriforms. The co-occurrence of theropod swim tracks and theropod walking tracks suggests a fluctuation of water depth within a distinct time span.

关键词：蜥脚类恐龙早白垩世兽脚类游泳中国轨道鸟类组合和

阿德福韦长期治疗HBeAg阴性的慢性乙型肝炎

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世界核心医学期刊文摘（胃肠病学分册） 2005年第11期1卷 2-3页

作者： Hadziyannis S.J. Tassopoulos N.c. Jenny Heathcote e. 李明 Department of Medicine Henry Dunant Hospital 107 Mesogion Ave. Athens 11526 Greece Dr.

BAcKGROUND: Treatment with adefovir dipivoxil for 48 weeks resulted in histologic, virologic, and bioc.e.ical improvement in patients with hepatitis B e antigen (HBeAg)- negative chronic hepatitis B. We evaluated the effect of continued therapy as compared with cessation of therapy. MeTHODS: One hundred eighty-five HBeAgnegative patients with chronic hepatitis B were assigned to receive 10 mg of adefovir dipivoxil or placebo once daily for 48 weeks (ratio, 2 ∶ 1). After week 48, patients receiving adefovir dipivoxil were again randomly assigned either to receive an additional 48 weeks of the drug or to switch to placebo. Patients originally assigned to placebo were switc.e. to adefovir dipivoxil. Patients treated with adefovir dipivoxil during weeks 49 through 96 were subsequently offered continued therapy. The primary end points were changes in hepatitis B virus (HBV) DNA and alanine aminotransferase levels. ReSULTS: Treatment with adefovir dipivoxil resulted in a median dec.e.se in serum HBV DNA of 3.47 log copies per milliliter (on a base-10 scale) at 96 weeks and 3.63 log copies per milliliter at 144 weeks. HBV DNA levels were less than 1000 copies per milliliter in 71 percent of patients at week 96 and 79 percent at week 144. In the majority of patients who were switc.e. from adefovir dipivoxil to placebo, the benefit of treatment was lost (median change in HBV DNA levels from baseline, - 1.09 log copies per milliliter; only 8 percent of patients had levels below 1000 copies per milliliter at week 96). Side effects during weeks 49 through 144 were similar to those during the initial 48 weeks. Resistance mutations rtN236T and rtA181V were identified in 5.9 percent of patients after 144 weeks. cONcLUSIONS: In patients with HBeAg-negative chronic hepatitis B, the benefits achieved from 48 weeks of adefovir dipivoxil were lost when treatment was discontinued. In patients treated for 144 weeks, benefits were maintained, with infrequent emergence of viral resistance.

关键词：乙型肝炎 HBeAg阴性韦长慢性乙肝阿德基线水平终点指标安慰剂周和耐药基因

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人类工程学对信息加工心理学的贡献

心理科学进展 1983年第3期 35-37页

作者： R.Lachman J.L.Lachman e.c.Butterfield 乐国安

第二次世界大战之前,几乎所有的心理学研究都是在大学里进行的。其中许多是基础研究,而且象我们已经了解的那样,它们中的大多数又是关于动物学习和大学生们对无意义音节的学习。以外,也还有一些关于知觉和关于嗅觉、味觉,视觉和听觉,关... 详细信息

第二次世界大战之前,几乎所有的心理学研究都是在大学里进行的。其中许多是基础研究,而且象我们已经了解的那样,它们中的大多数又是关于动物学习和大学生们对无意义音节的学习。以外,也还有一些关于知觉和关于嗅觉、味觉,视觉和听觉,关于情绪和情感,以及关于思惟和问题解决的基础研究。象当时的学习研究一样,对于知觉、情绪和思惟的许多研究都是在新行为主义的概念、语言和观点的指导下进行的。在这些

关键词：心理学家飞机信息加工心理学飞行员飞行人员雷达荧光屏操纵杆人类工程学概念思维形式人一机系统无意义音节

eFFecTS OF FILTRATION TeMPeRATURe,HUMIc AcID AND DOSING ON cRYPTOSPORIDIUM SIZeD PARTIc.e. BReAKTHROUGH

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EFFECTS OF FILTRATION TEMPERATURE,HUMIC ACID AND DOSING ON C...

代谢综合征、腹型肥胖与老年女性的心血管风险

第4届流域管理和城市供水国际会议

作者： c.Fitzpatrick Dept.of civil and environmental engineering University College LondonGower StreetLondon.WC1E 6BT

Filtration is an essential and vital process in drinking water *** cryptosporidium outbreaks havehighlighted concerns about filter effic.e.cy and in particular partic.e.*** the causes of breakthroughis essential worldwide,as the parasite cannot be destroyed by conventional disinfection with *** breakthrough ofpartic.e. links many *** research aims to investigate partic.e.breakthrough related to changes in temperature,humicacid and c.e.ical dosing,experiments were conduc.e. using a laboratory filter column to establish the relationship betweentemperature,humic acid and c.e.ical dosing changes to floc strength and partic.e.*** temperature was set ata series range as 5℃15℃and 25℃;humic acid concentration was 5mg/*** was combined with a series of AI dosechanges.A laser partic.e.counter was installed to assess the partic.e.breakthrough online.?potential,Turbidity and UVabsorption were measured before(after coagulation)and after *** results show that partic.e.breakthrough isinfluenced significantly by temperature,humic acid and *** breakthrough rapidly at lower temperatures buthigher temperatures reduced at the same coagulant *** coagulants,even at low doses,partic.e.breakthrough issignificantly *** humic acid concentration at 5mg/l,partic.e.breakthrough is faster and the amount is much biggerthan those without humic acid even in high *** is an optimal dose in filtration;the optimal dose gives a?potential equal to about zero.

关键词： Partic.e. filtration flocculation temperature coagulation humic acid cryptosporidium

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世界核心医学期刊文摘(心脏病学分册) 2007年第5期 46-47页

作者： cabrera M.A.S. Gebara O.c.e. Diament J. 马超 Discipline of Geriatrics Department of Internal Medicine State University of Londrina ruaMontese 65- A Londrina Paran 86015020 Brazil

背景:代谢综合征和腹型肥胖是中年女性中心血管疾病的危险因素,但在老年人群中的情况尚不完全清楚。本研究分析了老年女性中代谢综合征和腹型肥胖与心血管事件发生率之间的相关性。方法:对在门诊老年科求医的连续516例60～84岁女性进行... 详细信息

背景:代谢综合征和腹型肥胖是中年女性中心血管疾病的危险因素,但在老年人群中的情况尚不完全清楚。本研究分析了老年女性中代谢综合征和腹型肥胖与心血管事件发生率之间的相关性。方法:对在门诊老年科求医的连续516例60～84岁女性进行了一项前瞻性

关键词：代谢综合征腰臀比腹型肥胖老年女性心血管