Yearning for faraway places: the construction of migration desires among young and educated Bangladeshis in Dhaka

These days, the imagined destinations of ever more people, particularly in the ‘global South’, are not where they were born but elsewhere. Using a case study of educated (lower) middle-class youth in Dhaka, this paper attempts to demonstrate that for many ‘aspiring migrants’, the yearning for leaving is a metaphor for disappointment and disengagement rather than the first step towards transnational migration. Economic growth, rapid urbanisation and the increasing investment in education infest the emerging urban (lower) middle-class youth with new ‘modern’ lifestyle desires that cannot be fulfilled in their home country and generate a sense of disengagement with Bangladesh. The paper focuses in particular on how the – culturally embedded – imaginations of foreign places link up to personal (re-)evaluations of local lives. Nearly all informants explained how local socio-economic, political and existential insecurities made them yearn for ‘safe’ places where their dreams could be fulfilled.     

CO-OFDM系统中基于线性预处理的新相位噪声抑制算法

针对相干光正交频分复用（coherent optical orthogonal frequency division multiplexing,CO-OFDM）系统中相位噪声引起的载波间干扰（inter-carrier interference,ICI）问题,提出了一种基于线性预处理的新判决反馈相位噪声抑制算法。该新算法改进了线性预处理部分,利用循环前缀与OFDM符号固有的相关性,在时域进行简单的线性组合运算,充分利用了OFDM符号中冗余信息。仿真分析表明,在激光器线宽为200 kHz且误码率（bit error rate, BER）为10－4时,与判决反馈相位噪声抑制算法和一次迭代的判决反馈相位噪声抑制算法相比,该新算法BER曲线的信噪比（signal to noise ratio,SNR）分别改善了3 dB和1 dB,有效地降低由ICI引起的错误平层。     

一种复合的自治域级拓扑发现方法

随着网络技术的发展,面对新的挑战,传统网络逐渐力不从心,软件定义网络（software-defined network, SDN）领衔的未来网络应运而生,随之而来的是各类网络测量技术纷纷针对未来网络发生演变,但拓扑结构测量在传统网络环境下的作用仍然不可忽视。在自治域级的网络拓扑中,每个自治域都可以简化为一个点,而用两点之间的连线表示自治域间的邻接关系。近年来有许多相关的研究展示了不同的拓扑发现算法。提出了一种简单高效的方法来推断自治域级的拓扑,利用在网络中部署高速采集器采集边界网关协议（border gateway protocol,BGP）路由器上的路由表以及BGP协议的更新信息来推断网络拓扑结构,并判定自治域的相关属性。实验证明了该方法能够达到预期效果,全面、准确地推断网络在自治域级的拓扑结构。     

转型经济下民营企业家个体特质、情境对公司创业的驱动机制 ——基于QCA的探索性研究

在中国经济转型的大市场环境下,企业如何将公司创业的意愿成功付诸于创业行动,是学术界广泛讨论的话题。文章利用全国私营企业调查问卷表数据,以102家私营企业作为案例样本,通过模糊集定性比较分析(QCA)方法将企业家个体特质与情境两个层面整合,同时从这两个层面进一步细分,去探讨组态效应对公司创业的多重并发影响机制。经过数据分析可以获知,企业家的社群式身份是高公司创业活跃度的必要条件,且导致高公司创业活跃度有四条组态(路径);导致非高公司创业活跃度的有一条组态(路径),两者之间存在非对称关系。     

The politics of the face: the scopic regime and the (un-)masking of the political subject

Face is commonly seen as a feature exclusive to each person. It expresses subject’s feelings, thoughts and in turn represents knowledge that is otherwise deemed personal. However, face is mistakenly seen as pure expression of subject’s thoughts. This article aims to show that face is a product of governing practices of seeing and knowing. It is thus not a unique individual expression, but a mask that the socio-political order attaches to individuals as they are turned into political subjects. The article begins with a discussion of the two governing practices: the seeing (or the spectre of the visible) and the knowing (or the practice of locating faces in the socio-political field) with an aim to unveil the role face plays in the socio-political reality. The first interrogation looks at how face creates a field of recognition and opens a distinct form of political visibility: who, what and how one sees and what remains unseen. Whereas the second interrogation discusses how appearances produce meaning and how knowledge is taken off the face. Finally, the face as a knowledge producer and a mean of subject’s social recognition (identity) is put in the encounter with the idea of the anxious gaze and the work of Marlene Dumas. Instead of recognition, here a subject is met with dissociation and displacement of subject’s socio-political image. The three presented studies paint the politics of the face as an obscene governing strategy caught between endless attempts to create the face as a known, seen and governed space and illusive attempts to grasp the actual meaning of a pre-symbolised face.     

Engagement strategies and change: an intentional practice response for the child welfare worker in cases of domestic violence

In order to engage mothers who are victims of domestic abuse, the child welfare worker needs to be challenged to develop an intentional practice response that includes knowledge and skill concerning the complexities of domestic violence, as well as the process of change. Developing a supportive relationship, understanding the stages of change (SOC) and engaging mothers as leaders in the change process are essential to successful child protection outcomes. Within the context of the SOC model, this practice‐based paper focuses on the importance of engaging mothers who are victims of domestic violence in conversations about their own unique dilemmas, challenges and barriers regarding change. Through the inclusion of engagement strategies such as signs of safety, active listening and cost/benefit analysis, in concert with the SOC theory, the child welfare worker would be equipped with an approach to successfully assist mothers through their change journey, ultimately keeping children safe.     

Xinhai remembered: from Han racial revolution to great revival of the Chinese nation

This article turns three different analytical mirrors onto the Xinhai Revolution – 1911, 1961, 2011 – in order to interrogate its evolving significance in the minds of China's Han ethnic and ruling elite. In particular, it seeks to demonstrates the discursive appropriation of the Qing nomadic frontier in the ways in which the 1911 Revolution is remembered and commemorated, exploring both the temporal and spatial dimensions of this appropriation, and how the revolution shifted from a bloody Han racial insurrection against Manchu power and privilege to a heroic celebration of the revival of a multiethnic Chinese nation-state in the face of foreign imperialism and oppression.     

王先谦《诗三家义集疏》探义

今古文两学派的较量是《诗经》问题争论史中的一大焦点,但因三家《诗》的陆续亡佚,使得后人要支持今文《诗》,得同时致力于辑佚与诠释两个工作才行,清末王先谦的《诗三家义集疏》就是这方面的名著。此书在前人的研究成果上继续前进,尽量铺陈三家原貌,以《毛诗》作为理解今文的参照系,条理清晰,而其分别家数时,主要是依照陈寿祺父子《三家诗遗说考》的成果,甚至陈氏取材不够精审的缺陷也被王氏所承续,所幸,其在面对旧有材料时仍能注意到筛选与考辨的工夫,所以呈现出来的材料仍较陈书稍显精审。     

A family of estimators of population variance in two-occasion rotation patterns

Abstract

In this article, we have considered the problem of estimation of population variance on current (second) occasion in two occasion successive (rotation) sampling. A class of estimators of population variance has been proposed and its asymptotic properties have been discussed. The proposed class of estimators is compared with the sample variance estimator when there is no matching from the previous occasion and the Singh et al. (2013) estimator. Optimum replacement policy is discussed. It has been shown that the suggested estimator is more efficient than the Singh et al. (2013) estimator and a usual unbiased estimator when there is no matching. An empirical study is carried out in support of the present study.