四川代隆金矿岩脉与金成矿的关系

代隆金矿床是近年新发现的一个微细浸染型金矿床,产于三叠系新都桥组,发现金矿体2条,多条金矿化体,主要容矿岩石为花岗斑岩。通过对岩脉与矿(化)体时间关系、空间关系及其成因关系的讨论,认为岩浆活动在金矿成矿过程中不仅提供了热能,还提供了成矿物质和容矿岩石,得出代隆金矿花岗斑岩脉是成矿的有利部位,是区内找矿的一个重要标志。总结区内矿化花岗斑岩脉内金矿化的特点,以期为提高找矿效率扩大矿区找矿规模提供依据。     

陕西省太白县东沟金多金属矿床地质特征及控矿因素分析

东沟金多金属矿床位于西秦岭凤太矿集区东部,矿体赋存于泥盆系地层中,金矿(化)体的产出严格受星红铺组千枚岩地层的控制,NW向构造发育程度控制着金矿化的强度。矿区已发现多条矿带,容矿岩石主要为铁白云质粉砂质千枚岩,矿石类型主要为石英脉型,属构造蚀变岩型金矿床。综合矿区地层、构造、蚀变特征、控矿因素等认识,认为东沟金矿成矿地质条件有利,有形成中型金矿床的可能。     

陕西省太白县北沟金矿床地质特征与找矿潜力分析

北沟金矿床位于凤太矿田东部,地处八方山—八卦庙—双王铅锌、金多金属矿带东段。北沟金矿床分北沟矿带与东沟矿带,矿床类型为构造蚀变岩型与石英脉型。在系统总结北沟金矿床地质特征的基础上,进一步分析了矿区找矿潜力。综合分析认为,矿体存在"上脉下层"的二元结构模式,目前矿区及外围工作程度低,通过进一步工作开展,北沟金矿床有望成为中—大型金矿床的远景规模。     

CSAMT法在哈达门沟金矿中的应用

哈达门沟金矿床是内蒙古中部的一个特大型金矿床,矿化类型主要是钾长石化,而不是华北地台大多数金矿床所常见的绢云母化,矿床类型具有一定的特殊性。矿区内有山前和山后2条大断裂控制着成矿带的展布方向,这2条断裂也派生出许多次级断裂。山前钾化带是一条靠近山前断裂呈NEE向展布的砖红色钾长石化蚀变带,区内已发现的矿（化）体主要产于钾长石化蚀变岩内或蚀变岩中心的石英脉中。CSAMT法具有勘探深度大,抗干扰能力强,对深部2 000 m以内地质体分布反映清晰明显的优点,将其应用于哈达门沟矿区找矿工作中,结果表明,数据反演异常对山前断裂和山前钾化带有很好的反映,并在深部发现了隐伏矿（化）体,证明CSAMT具有很好的地质找矿效果。     

河南省光山县徐坪金矿地质特征及找矿标志

矿区位于桐柏-大别山造山带中段,出露地层包括中新元古界浒湾岩组、震旦系—奥陶系下统肖家庙岩组、泥盆系南湾组三段、白垩系下统陈棚组和第四系,矿区圈定金矿化体24条,矿石类型为石英脉型及含金破碎蚀变岩型,本文通过对光山县徐坪金矿地质特征及矿(化)体特征分析,提出了区内金矿找矿标志。     

陕西省柞水县南沟金矿床地质特征及找矿前景分析

冷水沟—南沟矿区位于南秦岭印支期褶皱带东段。区内发育有冷水沟斑岩型铜矿床和南沟构造热液脉型金矿床。本文通过对南沟金矿区的成矿地质特征进行总结,发现区内金矿体主要赋存在斑岩体外围的基底构造层及与岩体的外接触带中。矿床成因属岩浆热液蚀变型、韧性剪切带型金矿床,结合冷水沟斑岩型铜矿成矿特征构成斑岩型矿床的成矿系列。综合分析认为本区具有良好的找矿前景,在柞水—山阳矿集区有望形成大型铜金矿床的突破。     

The Metallogenic Regularity and Deep Prospecting of No.1 Vein in Dazhuangzi Gold Deposit, Shandong Province

大庄子金矿1号脉矿床受大庄子断裂带控制,金矿体赋存在构造蚀变带内,矿体形态似厚层板状,沿走向呈脉状展布.矿石矿物具有多世代性,属中温热液充填交代蚀变岩型金矿床.经过对矿区地质、矿床地质和成矿阶段特征进行分析,并结合化探异常,总结出大庄子金矿床l号脉找矿标志,进而对深部探矿进行了初步预测.     

山东蓬莱上岚子金矿地质特征及找矿方向

上岚子金矿位于栖霞—蓬莱金成矿带北段,成因类型为岩浆期后热液充填交代型金矿床。矿体受北北东～北东向断裂严格控制,赋矿围岩为玲珑序列二长花岗岩,矿体呈脉状、透镜状产出。矿石为黄铁绢英岩化花岗质碎裂岩、黄铁矿石英脉,矿石矿物主要为黄铁矿、银金矿、自然金等。本文通过对该矿床地质特征的研究,在总结矿化富集规律、找矿标志的基础上,指出找矿方向。     

陕西庙梁金矿床地质特征、矿床成因及找矿前景分析

庙梁金矿位于山柞旬泥盆系北部多金属矿集区的中心地带,地处华北板块与杨子板块拼接消亡带南缘的南秦岭造山带内,总体构造线呈北西西向,有北北东及近南北向构造叠加。矿体受构造控制时,矿液沿层间脆-韧性破碎带、层间裂隙带贯入、沉淀,形成构造石英脉蚀变岩型金矿;在隐爆角砾岩中受断裂破碎带和角砾岩间隙的共同控制,形成蚀变隐爆角砾岩型金矿。成矿热液属于低温变质热液+岩浆期后中温含矿热液侵入赋矿构造、在隐爆角砾岩中还萃取地层岩石中有益组分。因此矿床成因类型属沉积-浅成岩体侵位期后热液-迭加地下水循环改造的中低温热液型金矿床。早期花岗斑岩体的侵入,是形成矿区金矿床的重要条件。岩浆侵入活动产生了隐爆角砾岩,叠加改造了地层岩石的变形变质程度,形成相对高级别变质岩石和断裂破碎带,岩浆期后产生了丰富的含矿热液,为构造破碎带和角砾岩的蚀变岩和金矿床的形成奠定了成矿物质基础,且多期次岩浆侵入活动,成矿热液多次叠加,成为本区主要成矿组分金的富集成矿起到了关键作用,是矿区金矿床形成的重要成矿机制。本文在充分收集和研究区域矿产分布特征及矿化特征的基础上,结合区内金矿体矿物组成、化学成分特征以及控矿因素的研究,对庙梁金矿床的成因类型进行了初步的研究和探讨,并总结出此类矿床的找矿标志。并结合地质特征及与热液成因类型,认为本矿区具有良好的找矿前景。     

河南桐柏银洞坡金矿区地质特征与成矿机理研究

矿区大地构造位置属秦岭—大别造山带中段,北秦岭构造带,区内地层为一套中浅变质火山—沉积岩系,地质构造复杂,成矿地质条件优越。歪头山组中部(Pt3w2)第二岩性段(Pt3w22)为矿区主要含矿层位,朱庄背斜是矿区的一级控矿构造,矿床的成因类型为变质岩来源大气降水热液金矿床。研究成果对矿区以后地质勘查工作具有很重要的指导意义。     

Voices of fear and anxiety and sadness and depression: The effects of speech rate and loudness on fear and anxiety and sadness and depression.

Two studies investigated the role of expressive vocal behavior (specifically, speech rate and loudness) in fear and anxiety and in sadness and depression. In the 1st study, participants spoke about personally experienced fear and anxiety-arousing and neutral events using 3 different voice styles: fast and loud, normal, and slow and soft. In the 2nd study, participants spoke about personally experienced sad or depressing and neutral events using the same 3 voice styles. In both studies, the participants' highest levels of subjective affective and cardiovascular (CV) arousal occurred when they spoke about the emotional events in a mood-congruent voice style: fast and loud in the case of fear and anxiety, and slow and soft in the case of sadness or depression. Mood-incongruent voice styles canceled the heightened levels of CV arousal normally associated with these negative emotions. The voice-style manipulation had no significant effect on the participants' levels of CV arousal during the neutral discussions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Synthesis and analysis of mixed chlorinated-fluorinated dibenzo-p-dioxins and dibenzofurans and assessment of formation and occurrence of the fluorinated and chlorinated-fluorinated dibenzo-p-dioxins and dibenzofurans

Despite the use of multimodal therapy, higher-grade glioma is still uniformly fatal in the adult population. There is a considerable difference between the length of survival in each given patient, even within the same tumor type and malignancy grade group, suggesting that there are factors that might differentially influence outcome. To identify such factors, 107 patients with anaplastic or malignant glioma were retrospectively investigated. Clinical parameters and paraclinical data on the p53, mdm2, and EGFR genes at the DNA or protein level were evaluated by univariate analysis and Cox proportional hazards regression modeling. Kaplan-Meier survival estimation demonstrated that immunohistochemical positivity for mdm2 protein in patients with anaplastic astrocytoma or with glioblastoma multiforme was associated with a shorter survival time (p = 0.02). P53 gene mutations and immunopositivity for the epidermal growth factor receptor (EGFR) protein were not significantly related to poor prognosis. The Cox proportional hazards model revealed immunohistochemical positivity for p53, mdm2, or for both of them, the presence of postoperative irradiation, and the extent of surgical resection of tumor to be variables significantly associated with prolonged survival. EGFR overexpression, age over 60 years, and Karnofsky performance score below 40 points did not significantly shorten survival time. In conclusion, the present study identified immunohistochemically detected mdm2-protein overexpression as a statistically significant negative prognostic parameter in patients bearing anaplastic or malignant glioma. Association analysis of variables revealed a possible correlation between mdm2 and p53, which is also consistent with the biological interaction mode of both proteins in vivo.     

Sexuality and aging--usual and successful

BACKGROUND: As aging research increasingly reflects an effort to dissociate true time-driven changes from those that can be improved, sexuality in later life remains largely unexplored. Several problems are evident. There is a lack of normative data, a lack of a conceptual framework relating to the biology, psychology, and sociology of sex, and an attitudinal resistance that obscures the entire topic. METHODS: We conducted a three-part instructional series on major topics involved with sexuality and aging. We surveyed our group of attendees (n 158, average age 68 for males, 65 for females) before and after the series. RESULTS: A remarkably robust sex life was evidenced by both the men and the women, even until advanced old age. Yet, a substantially decreased involvement was reported from 10 years earlier. Despite current activities, people of both sexes wished they were participating even more than they currently were. Impotency was identified as the major negative feature for the men; relationship problems were for the women. A questionnaire 6 months after the series reported improved sexual attitudes, but no change in sexual activities from the earlier survey. CONCLUSION: Sexuality is a major quality-of-life issue which persists into old age. Our study showed that the usual sexual practices reported by our group were not considered by them to be ideal. The intervention of this instructional series provided improved sexual attitudes but not performance. Additional studies are encouraged.     

Spondylolysis and spondylolisthesis and sports

Spondylolysis and spondylolisthesis occur predominantly in the lower lumbar spine. Besides congenital defects such as predisposition of spondylolysis the correlation between competitive sports activities and an increased incidence of spondylolysis is proved. In early stages, complete healing can be achieved by conservative treatment (abstinence from sports activities for 3 months, orthesis). Persistence of pain, neurologic symptoms and progression of vertebral slipping are indications for operative treatment (reconstruction of the isthmus, dorso-ventral spondylodesis). The exercise tolerance depends on the extent of instability, progression of vertebral slipping and clinical symptoms. The limits of exercise tolerance vary among the individual athletes and require the decision of the physician. Backstroke swimming, abdominal and back muscle strengthening exercises, and types of sport involving smooth movements are advisable. Sports education in school is possible without restriction in patients with stable spondylolysis and in those with spondylolisthesis without unfavourable concomitant factors.     

Larks and owls and health, wealth, and wisdom

OBJECTIVE: To test the validity of Benjamin Franklin's maxim "early to bed and early to rise makes a man healthy, wealthy, and wise." DESIGN: Cross sectional analysis of sleeping patterns in a nationally representative group of elderly people, and longitudinal investigation of mortality. SETTING: Eight areas in Britain (five in England, two in Scotland, and one in Wales). SUBJECTS: 1229 men and women aged 65 and over who in 1973-4 had taken part in a survey funded by the Department of Health and Social Security and for whom data on sleeping patterns, health, socioeconomic circumstances, and cognitive function had been recorded. MAIN OUTCOME MEASURES: Self reported income, access to a car, standard of accommodation, performance on a test of cognitive function, state of health and mortality during 23 years of follow up. RESULTS: 356 people (29%) were defined as larks (to bed before 11 pm and up before 8 am) and 318 (26%) were defined as owls (to bed at or after 11 pm and up at or after 8 am). There was no indication that larks were richer than those with other sleeping patterns. On the contrary, owls had the largest mean income and were more likely to have access to a car. There was also no evidence that larks were superior to those with other sleeping patterns with regard to their cognitive performance or their state of health. Both larks and owls had a slightly reduced risk of death compared with the rest of the study sample, but this was accounted for by the fact that they spent less time in bed at night. In the study sample as a whole, longer periods of time in bed were associated with increased mortality. After adjustment for age, sex, the presence of illness, and other risk factors, people who spent 12 or more hours in bed had a relative risk of death of 1.7 (1.2 to 2.5) compared with those who were in bed for 9 hours. The lowest risk occurred in people who spent 8 hours in bed (adjusted relative risk 0.8; 0.7 to 1.0). CONCLUSION: These findings do not support Franklin's claim. A "late to bed and late to rise" lifestyle does not seem to lead to socioeconomic, cognitive, or health disadvantage, but a longer time spent in bed may be associated with increased mortality.     

深云立交桥梁检测及加固改造

根据深云立交桥梁的检测结果，对该桥目前的整体状况、工作状态，及其使用情况做出综合评价，对桥的病害原因进行了分析，并提出合理的加固方案。     

关于摩尔浓度及其与硬度转换关系问题的讨论

众所周知，国际单位制物质的量采用摩尔(mol)表示，近几年出版的给排水专业书籍，为了与国际单位制接轨，逐渐将摩尔的使用频率不断提高，被给排水技术人员广泛应用的新版给排水设计手册，将表示物质浓度的单位“当量／升”或“毫克当量／升”．改为mol／l或mmol／l，虽然编者对其基本单元定义作了说明，但在实际运用上仍会出现误解，     

《儿子与情人》的语码转换与男女二元对立

劳伦斯小说《儿子与情人》一个鲜明的语言特色就是标准英语和当地方言频繁的语码转换。莫瑞尔用方言来对抗妻子,而妻子坚持用标准英语,偶尔也用方言来讽刺、挖苦丈夫。语码转换反映了劳伦斯男女二元对立的哲学思想。     

抗腐蚀高强耐磨涂料研发与应用

介绍了抗腐蚀高强度耐磨涂料的研制和开发，以及用作柳钢球团回转烘干机刮板保护涂层的应用效果。