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.     

Transparency and Resource Allocation of Grassroots Nonprofits in China

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - Organizational transparency has become a prominent concern for the nonprofit sector as it expands globally. Transparency...     

真伪之辩——基于新近材料的“海德格尔事件”核心问题研究

新近出版的《海德格尔兄弟通信集》为“海德格尔事件”研究的突破性进展提供了非常重要的文本资料，为澄清诸多疑难问题提供了一个关键契机。受此推动，本文将对“海德格尔事件”的核心问题展开追问:海德格尔在校长任职动机问题上的自我辩护是谎言还是事实?胡戈·奥特在其研究中批评海德格尔的辩护乃是撒谎，这一判断以种种变式影响着今天的《黑皮笔记》研究;但依据更多材料和更严谨的分析，可以看出奥特这一具有重大影响力的研究工作存在严重漏洞，扭曲了事实，而多年来一直被质疑的海德格尔自我辩护反倒符合事实。这一发现不仅揭示出了重新全面解读“海德格尔事件”的必要性，而且推动着我们去沉思相关论战一再爆发的深层原因，这将有助于我们走上真正的疑难澄清之路。     

A quadratic time exact algorithm for continuous connected 2-facility location problem in trees

This paper studies the continuous connected 2-facility location problem (CC2FLP) in trees. Let \(T = (V, E, c, d, \ell , \mu )\) be an undirected rooted tree, where each node \(v \in V\) has a weight \(d(v) \ge 0\) denoting the demand amount of v as well as a weight \(\ell (v) \ge 0\) denoting the cost of opening a facility at v, and each edge \(e \in E\) has a weight \(c(e) \ge 0\) denoting the cost on e and is associated with a function \(\mu (e,t) \ge 0\) denoting the cost of opening a facility at a point x(e, t) on e where t is a continuous variable on e. Given a subset \(\mathcal {D} \subseteq V\) of clients, and a subset \(\mathcal {F} \subseteq \mathcal {P}(T)\) of continuum points admitting facilities where \(\mathcal {P}(T)\) is the set of all the points on edges of T, when two facilities are installed at a pair of continuum points \(x_1\) and \(x_2\) in \(\mathcal {F}\), the total cost involved in CC2FLP includes three parts: the cost of opening two facilities at \(x_1\) and \(x_2\), K times the cost of connecting \(x_1\) and \(x_2\), and the cost of all the clients in \(\mathcal {D}\) connecting to some facility. The objective is to open two facilities at a pair of continuum points in \(\mathcal {F}\) to minimize the total cost, for a given input parameter \(K \ge 1\). This paper focuses on the case of \(\mathcal {D} = V\) and \(\mathcal {F} = \mathcal {P}(T)\). We first study the discrete version of CC2FLP, named the discrete connected 2-facility location problem (DC2FLP), where two facilities are restricted to the nodes of T, and devise a quadratic time edge-splitting algorithm for DC2FLP. Furthermore, we prove that CC2FLP is almost equivalent to DC2FLP in trees, and develop a quadratic time exact algorithm based on the edge-splitting algorithm. Finally, we adapt our algorithms to the general case of \(\mathcal {D} \subseteq V\) and \(\mathcal {F} \subseteq \mathcal {P}(T)\).     

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.