21世纪前后法国人类学发展趋势研究

法国人类学的产生不是一蹴而就的,而是有着深刻的时代背景和深厚的文化积淀。在世界人类学发展过程中,社会学年鉴学派、结构学派等都曾对世界人类学产生过深远的影响。经过百年曲折发,法国人类学已经发展成为一门独立、较完备、有自己特色的学科,在理论上有许多新创造、新突破和新建树,如今仍以独特的理论体系在世界人类学舞台上发挥着前沿作用,并占有重要地位,得到了学术界和社会的认可。特别是近20年,它的发展、研究规划更加明确,在竞争激烈的世界人类学研究中,稳稳地占据了一席之地。它发展的经验和教训,为中国民族学人类学的当代发展尤其是理论创新和扩展研究思路方面提供了难得的借鉴和启示。     

Rethinking the Univariate Approach to Panel Unit Root Testing: Using Covariates to Resolve the Incidental Trend Problem

In an influential article, Hansen showed that covariate augmentation can lead to substantial power gains when compared to univariate tests. In this article, we ask if this result extends also to the panel data context? The answer turns out to be yes, which is maybe not that surprising. What is surprising, however, is the extent of the power gain, which is shown to more than outweigh the well-known power loss in the presence of incidental trends. That is, the covariates have an order effect on the neighborhood around unity for which local asymptotic power is negligible.     

国内专门用途英语研究述评(2000—2021年)——基于CiteSpace的可视化分析

借助文献计量工具CiteSpace对2000—2021年间CNKI收录的中文核心期刊、CSSCI来源期刊及辑刊《中国ESP研究》发表的专门用途英语（ESP）相关论文进行可视化梳理,探究国内ESP研究的整体趋势、内容和特点,旨在为相关研究的进一步开展提供参考和启示。研究结果表明：21世纪以来国内ESP研究整体呈上升趋势,热点主题涵盖ESP本体研究、相关教材研究、相关理论与教学研究等;语言学和社会语言学构成了ESP研究的主体领域,跨学科特征虽有所凸显,但研究深度和广度仍有待拓展;从历时发展来看,ESP研究曾涌现商务英语、专业英语、英语教学等多个前沿领域,其中学术写作教学研究是近年关注焦点。     

Trends in college students’ mental health diagnoses and utilization of services, 2009–2015

Abstract

Objective: To examine changes in diagnoses/treatment for 12 mental health (MH) conditions, previous use of campus MH services, and willingness to seek MH services in the future. Participants: ACHA–NCHA II participants from 2009 to 2015 (n?=?454,029). Methods: Hierarchical binary logistic regression with step 1 controlling for demographics and step 2 considering time. Results: Time was significant except for bipolar disorder, bulimia, and schizophrenia with increases for all conditions except substance abuse. Anxiety (OR?=?1.68), panic attacks (OR?=?1.61), and ADHD (OR?=?1.40) had the highest odd ratios. Use of MH services at current institution (OR?=?1.30) and willingness to utilize services in the future (OR?=?1.37) also increased over time. Conclusions: Based on a national sample, self-reported diagnoses/treatment of several MH conditions are increasing among college students. This examination of a variety of MH issues can aid college health professionals to engage institutional stakeholders regarding the resources needed to support college students’ MH.     

A PANIC Attack on Unit Roots and Cointegration

This paper develops a new methodology that makes use of the factor structure of large dimensional panels to understand the nature of nonstationarity in the data. We refer to it as PANIC—Panel Analysis of Nonstationarity in Idiosyncratic and Common components. PANIC can detect whether the nonstationarity in a series is pervasive, or variable‐specific, or both. It can determine the number of independent stochastic trends driving the common factors. PANIC also permits valid pooling of individual statistics and thus panel tests can be constructed. A distinctive feature of PANIC is that it tests the unobserved components of the data instead of the observed series. The key to PANIC is consistent estimation of the space spanned by the unobserved common factors and the idiosyncratic errors without knowing a priori whether these are stationary or integrated processes. We provide a rigorous theory for estimation and inference and show that the tests have good finite sample properties.     

论布什总统第二任期美国霸权主义的发展趋势

布什总统第二任期开始以来,美国政府的外交政策虽然出现了一些新的特点,但霸权主义依旧是它的主旋律。美国政府不但不会彻底放弃布什总统第一任期遵循的单边主义外交理念,相反还将在政治、经济、军事等各方面进一步强化美国的霸权主义政策。因此,对中国等广大发展中国家而言,与布什政府的霸权主义作斗争依旧是一项紧迫的任务。     

党员流动趋势与流动党员管理的实证研究——以重庆市为个案

以重庆市为个案,在大量调研的基础上,分析了党员的流动趋势、流动党员管理现状及存在的主要问题,探讨了流动党员开放式管理和动态管理的有效途径和方式.     

On- and offline detection of structural breaks in thermal spraying processes

We investigate and develop methods for structural break detection, considering time series from thermal spraying process monitoring. Since engineers induce technical malfunctions during the processes, the time series exhibit structural breaks at known time points, giving us valuable information to conduct the investigations. First, we consider a recently developed robust online (also real-time) filtering (i.e. smoothing) procedure that comprises a test for local linearity. This test rejects when jumps and trend changes are present, so that it can also be useful to detect such structural breaks online. Second, based on the filtering procedure we develop a robust method for the online detection of ongoing trends. We investigate these two methods as to the online detection of structural breaks by simulations and applications to the time series from the manipulated spraying processes. Third, we consider a recently developed fluctuation test for constant variances that can be applied offline, i.e. after the whole time series has been observed, to control the spraying results. Since this test is not reliable when jumps are present in the time series, we suggest data transformation based on filtering and demonstrate that this transformation makes the test applicable.     

公路运输企业技术创新的基本途径及未来趋势

公路运输企业技术创新的基本途径可以归结为运输"产品"、运输技术、运输市场和运输组织与管理的创新.公路运输企业技术创新的未来趋势和特点表现为:专业化、多元化、集团化、信息化、行业联盟、物流集团及海陆空运输企业大联盟.     

Semi-parametric modelling of temperature records

A range of instrumental and proxy temperature records are examined semi-parametrically, using empirical densities and quantile autoregressions containing a unit root, to assess the extent of non-stationarity and the presence of global warming trends. Only the instrumental records covering the last century and a half show any evidence of non-stationarity, but the trend behaviour of these series remains elusive.