采用深孔水力开采技术对金山店铁矿东区进行开采的探讨

在介绍深不力开采技术的一般概念后，对金山店铁矿松软矿体应用该技术开采的可能性作了探讨，提出了采矿方法方案并对金山店东区使用该法的开拓形要主要工艺流程提出了方案设想，显示了该技术的极大技术经济效益。     

新疆索尔库都克铜钼矿床采矿方法探讨

通过对索尔库都克铜钼矿床的矿体赋存特点的分析 ,推荐采用了房柱法、底盘漏斗分段空场法的采矿方法 ,介绍了这几种采矿方法的回采工艺。     

小分段电耙留矿法在羊拉铜矿的应用

由于羊拉铜矿床矿体形态复杂,多个矿体共生且不连续,勘探级别又较低,而开拓系统工程已经形成,下段矿体变厚（最厚达13 m）,变陡（30°~40°）,给回采工作带来困难。采用原设计房柱采矿方法开采已不现实。为此,在不增加穿脉运输道的情况下,采用聚矿上山、分段（小分段）沿脉布置,分单元下行式进行回采,弥补了开拓形成后矿体变化带来的一系列技术问题,为安全、高效、经济回采倾斜中厚矿体找到了一个较为合理的采矿方法。     

太白金矿1150￣1250m间矿体采矿方法的推荐选择

太白金矿１２５０ｍ标高以上矿体回采即将结束，１２５０～１１５０ｍ间矿体开拓工程即将竣工，因而推荐选择１１５０～１２５０ｍ间矿体采矿方法成为矿山首要问题。     

太白金矿1150～1250m间矿体采矿方法的推荐选择

太白金矿 1 2 50m标高以上矿体回采即将结束 ,1 2 50～ 1 1 50m间矿体开拓工程即将竣工 ,因而推荐选择 1 1 50～ 1 2 50m间矿体采矿方法成为矿山首要问题。     

杏山铁矿露天转地下开采工程的设计实践

结合杏山铁矿露天转地下开采设计,介绍了杏山铁矿转地下开采过程中露天生产、挂帮矿体开采、深部矿体开采在时空关系、产量衔接、开拓系统、采矿方法、安全措施等方面的设计实践,技术方案值得借鉴。     

大西林铁矿采矿变革实践

作者根据大西林铁矿的开采实践，结合矿床的开采技术条件，不断地改进采矿方法，满足矿体变化的要求，探索出适合矿床开采特点的安全、经济、高效的采矿方法。     

安徽昌泰矿业拟建铅锌银多金属矿开采项目

安徽昌泰矿业有限公司拟建设硫铅锌银多金属矿地下开采工程项目。据悉,该项目位于安徽省泾县茂林镇境内,项目设计年开采规模为4万吨,开采矿种为铅锌矿、硫铁矿,开采方式为地下开采,开采深度自400米至200米,根据矿体赋存特征,对于倾角大于40°的矿体,设计选用采矿方法为浅孔留矿采矿法;对于倾角小于40°的矿体,设计选用采矿方法为房柱采矿法,开采方案为竖井开拓。     

甘肃加鑫Au4-1矿体采矿方法研究

通过对甘肃加鑫有限公司格宏道工区Au4-1矿体采矿方法的研究,分析原有采矿方法对该矿体的影响,优化了该矿体的采矿方法。根据矿体赋存条件以及进行技术经济对比分析,最终选择了上向水平分层充填法进行矿体回采,本文对该采矿方法的结构参数及施工工艺进行了详细的描述与总结。     

急倾斜薄矿脉爬罐天井中深孔采矿法研究

介绍了一种适用于急倾斜薄矿脉矿体的采矿方法的工艺过程、技术关键、技经指标等 ;该法具有机械化程度高、工效高等优点 ,是一种比较先进、具有推广应用价值的采矿方法。     

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.     

Craniometaphyseal and craniodiaphyseal dysplasia, head and neck manifestations and management

Mechanical allodynia (MA) following hand injury is a well-documented clinical problem. The purpose of this pilot study was to examine the relationship between hand MA and the upper limb tension test (ULTT). The ULTT mechanically stresses the neural structures from the C5/6/7 neural foramina to the median nerve distally. This study examined 29 subjects with unilateral hand MA before and after a 2-week neural self-mobilization programme. There was a significant difference between the subjects' affected and unaffected sides when tested using the ULTT, both in reproduction of symptoms and in reduced range of motion of the ULTT. Following the self-mobilization program, there was an improvement in the range of the ULTT, and subjects reported a reduction in their symptoms. Complete recovery was not obtained in all cases. The results of this study suggest that the ULTT is a useful tool both in assessment and treatment of subjects with hand MA.     

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。