河北下营坊花岗斑岩铜成矿作用标志

下营坊花岗斑岩产于燕山台褶带的兴隆—宽城凹褶束内，系燕山期小岩株，属钙碱性系列，具壳幔混源成因，岩石蚀变强烈，并可见孔雀石化。岩石中钾长石有序度高，科长石Ａｎ＝２５－３５，黑云母均为镁质，副矿物为磁铁矿—榍石—磷灰石型。成矿元素Ｃｕ、Ａｎ与ＣａＯ和Ｓ显著正相关，与ＳｉＯ２反相关。Ｋ２Ｏ与Ｎａ２Ｏ反相关．Ｋ２Ｏ／Ｎａ２Ｏ＞１，Ｆｅ３＋／（Ｆｅ３＋Ｆｅ２＋）＝０．５３，σ＜３，（Ｌ／Ｓｍ）＝５．７３，（Ｌａ／Ｙｂ）Ｎ＝２１．４，δＥｕ＝－０．３０。ＣＵ和Ａｕ丰度高，变化幅度大，并且Ｃｕ与深度正相关显著。各种特征均与世界上Ｃｕ—Ａｕ成矿岩体相符。有关成矿性图解和数理统计分析亦证明下营坊岩体为成矿告体。     

基于人才成长规律的高技能人才培养研究

加快高技能人才队伍建设,是贯彻落实科学发展观,实施人才强国战略,建设创新型国家的重要举措。该文在分析人才成长规律的共性及高技能人才的个性特征的基础上,研究高技能人才的成长规律,并以此为依据,为高职院校探索高技能人才培养的有效途径、加快高技能人才队伍的建设提供了有益的借鉴和思路。     

Time-varying parameters in the almost ideal demand system and the Rotterdam model: will the best specification please stand up?

This article assesses the ability of the Rotterdam Model (RM) and of three versions of the Almost Ideal Demand System (AIDS) to recover the time-varying elasticities of a true demand system and to satisfy theoretical regularity. Using Monte Carlo simulations, we find that the RM performs better than the linear-approximate AIDS at recovering the signs of all the time-varying elasticities. More importantly, the RM has the ability to track the paths of time-varying income elasticities, even when the true values are very high. The linear-approximate AIDS, not only performs poorly at recovering the time-varying elasticities but also badly approximates the nonlinear AIDS.     

2004-2012年我国建筑施工事故统计分析

我国建筑施工安全事故频发,严重影响到建筑业的可持续发展。本文采用直方图、趋势图、圆形结构图和事故分析表等对2004-2012年我国建筑施工事故进行统计,从事故的发生次数、死亡人数、事故类型及地区分布等几个方面进行分析,归纳出了建筑施工事故的发生规律,并针对事故发生规律提出了建筑施工安全管理的对策与建议。     

广西龙湾铅锌矿床构造控矿特征

龙湾铅锌矿床位于广西岑溪市佛子冲铅锌矿田的南部,佛子冲铅锌矿田位于加里东褶皱系云开隆起北西缘、博白-岑溪深断裂带北东段。由于龙湾铅锌矿床研究程度较低,故本文通过总结博白-岑溪成矿带内铅锌矿床和龙湾矿床所在的佛子冲矿田构造控矿特征,结合龙湾矿床地质概况来归纳总结其构造控矿特征,为下一步找矿预测做准备。     

武定县走马地矿段铜矿成矿条件及找矿方向

武定地区区域矿产资源极丰富,矿区经过40多年的勘查,共发现各类矿点百余个,综合研究表明,武定县平地~左所铜矿床类型以"东川式"铜矿最重要,分布在金钟罩、鸡冠山、油基田、周家箐、走马地、黄龙河、牛德庄等地;次为稀矿山式,主要在蒿枝地,走马地等地。"东川式"铜矿:落雪组底部过渡层,"稀矿山式"铁铜矿:因民组下部,同生断裂旁侧,古火山机构中的火山洼地,火山旋回的中上部,富含Na2O的细碧角斑岩系,硅质岩、萤石岩、钠长岩等喷流岩以及黑云母、绿泥石火山凝灰岩的分布区。     

Research productivity patterns in the organizational behavior and human resource management literature

Closely following the analysis approach used for similar studies in the economics and finance literature, we present the first study to examine if there exists an empirical regularity in the bibliometric patterns of research productivity in the organizational behavior (OB) and human resource management (HRM) literature. Our results present strong evidence that there indeed exists a distinct empirical regularity. It is the so-called Generalized Lotka's Law of scientific productivity pattern: The number of authors publishing n papers is about 1/n^c of those publishing one paper. The observed pattern in the OB and HRM area is interestingly very consistent with those in much older, related business disciplines.     

Explaining Variance in Policy Evaluation Regularity. The Case of the Flemish Public Sector

Abstract

The objective of the article is to identify the conditions that best explain organizational variance in policy evaluation regularity. Relying on the innovative Most Similar Different Outcome/Most Different Similar Outcome technique, we examine the explanatory ability of a range of organizational attributes applied to eighteen Flemish public sector organizations (Belgium). The conditions that relate to the source of evaluation demand, in its broadest sense, are of key importance. We refer to the role of the sector minister and other organizations in demanding evaluations, as well as to the media and parliamentary attention and the influence of EU evaluation clauses.     

吉尔吉斯斯坦国奥什州朱古尔塔什矿区铜金矿床成矿条件分析

文章阐述了矿床的成矿地质背景和矿区地层、构造、侵入岩及矿化蚀变带、矿化特征、矿床成因等。通过对矿床成矿的热源、水源、矿源等信息标志的分析,简述了矿床成矿的有利条件。朱古尔塔什矿床属矽卡型成因。