Community Attachment,Communication Mediation,and Nonprofit Participation: An Integrated Community Communication Approach

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - Nonprofit participation in the form of giving and volunteering has long been viewed as the building blocks of...     

边疆人类学概述

人类学家关于边疆和边界的研究包括将内涵和认同层面存在差异的各个世界分离和联系起来的文化边疆，标示出地理空间的边疆以及形塑社会关系秩序和界定“社群”（community）成员资格的边疆。这些文化、领土和社会维度常常交叠在一起，构成了一个整体性的边疆人类学。目前，社会科学已经逐步将对边疆关注的焦点聚集到其关系性和动态性两个方面，不再将其视为政治边缘，而是嵌入到日常生活中，这也是人类学长期坚持的一种探索路径。     

Diagnostic sequence of cocaine use disorder in relation to other mental health conditions among college students

Abstract

Objective: Cocaine use is increasing. Comorbidities and diagnostic sequencing are needed among college students to inform treatment of cocaine use disorder (CUD). Method: Using electronic medical records from the psychiatric clinic at the student health care center of a large, public university from 2005 to 2015, patients diagnosed with CUD were identified. Their top mental health conditions were identified and assessed to see whether the first diagnosis of these conditions was made (1) before, (2) at the same time as, or (3) after the first diagnosis of CUD. Results: Among the 50 CUD patients, their most common mental health comorbidities were alcohol use disorder, anxiety, depression, and cannabis use disorder. Anxiety and depression were likely to be diagnosed before CUD; alcohol and cannabis use disorders were likely to be diagnosed concurrently with CUD. Conclusion: Diagnostic sequencing can be used to inform screening, workup, and treatment for patients with CUD.     

Walking in the Forbidden City: embodied encounters in narrative geography

This paper engages contemporary literature from body studies to situate the Confucian body and its interactions with the space of the Forbidden City. The analysis demonstrates how discomfort, anxiety and the restraining of the body unfold through embodied encounters in the space. The paper focuses on the limits to what is possible in the movements of body, and how these movements rely upon and resist the space promised by Confucian thought. Understood as an embodied activity, walking is mobilised in this investigation by comparing the journey to meet the emperor taken by eunuchs and provincial officials in Imperial times and my own bodily experience in contemporary time.     

Deterministic construction of compressed sensing matrices based on semilattices

A central problem in compressed sensing is the construction of sensing matrices. In this paper, we show how to construct sensing matrices by using semilattices, and give many examples of sensing matrices constructed from specific semilattices. Moreover, we show that the new construction for some examples with small parameters gives better sensing matrices compared with previously known constructions.     

Species richness,phylogenetic and functional structure of bird communities in Chinese university campuses are associated with divergent variables

University campus is an important component of urban landscapes for biodiversity conservation. However, to our knowledge no study has quantitatively assessed the diversity and structure of bird communities in Chinese university campuses, especially from phylogenetic and functional perspectives. Here, for the first time we linked species richness, phylogenetic structure and body mass structure of campus bird communities with contemporary climate, glacial-interglacial climate change, altitudinal range, population density around campus, area and age of campus to test their associations. We found 393 bird species in 38 university campuses (29% of all Chinese bird species, two species are endangered, four species are vulnerable, and 33 species are near threatened). The variables significantly correlated with campus bird species richness, phylogenetic structure and body mass structure were altitudinal range and mean annual precipitation, glacial-interglacial anomaly in temperature, and altitudinal range, respectively. In particular, there were more species in steeper and wetter campuses, more young species clustered in campuses with stable glacial-interglacial climate, and more species with smaller body size in steeper campuses. Our study highlights the importance of considering both phylogenetic and functional information for biodiversity conservation in urban ecosystems.     

Better educational inclusion of migrant children in urban schools? Exploring the influences of the population control policy in large Chinese cities

The educational inclusion of rural–urban migrant children in Chinese urban schools has been promoted in the past decades. This paper provides a contextualized interpretation of recent policy developments governing large Chinese cities and evaluates its impact upon the status of migrant children's education. Drawing on data collected from 1,331 migrant children in urban inclusive schools, this study compared current migrant children's family backgrounds and psychological sense of belonging at school in relation to educational outcomes at the primary education level. Results showed that migrant children's socioeconomic status (SES) levels were slightly higher than their counterparts in inclusive schools and a salient SES stratification of migrant students was found. This correlates with students’ reports of fewer incidences of discrimination than hypothesized. Furthermore, capital in migrant families was positively associated with the psychological sense of belonging and academic achievement. These results reveal a significant change to migrant students’ SES as a result of the recent population control policy pertaining to China's large cities since 2014. Implications for research and educational practice, especially with at‐risk migrant students of low‐SES, are discussed.     

Cox regression of clustered event times with covariates missing not at random

Motivated by a recent tuberculosis (TB) study, this paper is concerned with covariates missing not at random (MNAR) and models the potential intracluster correlation by a frailty. We consider the regression analysis of right‐censored event times from clustered subjects under a Cox proportional hazards frailty model and present the semiparametric maximum likelihood estimator (SPMLE) of the model parameters. An easy‐to‐implement pseudo‐SPMLE is then proposed to accommodate more realistic situations using readily available supplementary information on the missing covariates. Algorithms are provided to compute the estimators and their consistent variance estimators. We demonstrate that both the SPMLE and the pseudo‐SPMLE are consistent and asymptotically normal by the arguments based on the theory of modern empirical processes. The proposed approach is examined numerically via simulation and illustrated with an analysis of the motivating TB study data.     

金融周期、金融波动与中国经济增长——基于省际面板门槛模型的研究

本文应用面板门槛模型，研究了2005-2017年间我国31个省（市、自治区）金融波动对经济增长的影响。研究发现，随着金融周期所处阶段的变化，金融波动对经济增长会产生显著的非对称性双重门槛效应，主要体现为如下两点：首先，金融周期处于膨胀期、平稳期和萧条期时金融波动对经济增长会产生负向影响，但从影响系数值的大小来看，处于膨胀期时最大，是后两者的2倍之多，处于平稳期时最小且并不显著；其次，分区域的稳健性检验表明，金融发展水平高的区域双重门槛值出现得早，且两个门槛值间的区间要比金融发展水平低的区域宽28%。这些结论说明，经济增长对于金融波动的容忍弹性会随着金融周期所处的阶段而变化，金融发展水平的提高会放大经济增长对金融波动的容忍区间，但也会加速金融周期处于膨胀期时爆发金融危机的可能性，这使得当前我国存在着进一步发展金融水平和严控金融风险的矛盾，对此本文也提出了相应的政策建议。