Questions,propositions and assessing different levels of evidence: Forensic voice comparison in practice

This paper contributes to the ongoing discussion about the distinction between observations and propositions in forensic inference, with a specific focus on forensic voice comparison casework conducted in the UK. We outline both linguistic and legal issues which make the evaluation of voice evidence and the refinement of propositions problematic in practice, and illustrate these using case examples. We will argue that group-level observations from the offender sample will always be evidential and that the value of this evidence must be determined by the expert. As such, a proposal is made that experts should, at least conceptually, think of voice evidence as having two levels, both with evidential value: group-level and individual-level. The two rely on different underlying assumptions, and the group-level observations can be used to inform the individual-level propositions. However, for the sake of interpretability, it is probably preferable to present only one combined conclusion to the end user. We also wish to reiterate points made in previous work: in providing conclusions, the forensic expert must acknowledge that the value of the evidence is dependent on a number of assumptions (propositions and background information) and these assumptions must be made clear and explicit to the user.     

Informed powerlessness: child marriage interventions and Third World girlhood discourses

Child marriage has gained increased international prominence over the past decades. Organisations working with the issue have promoted empowering girls as the best strategy to address it. Informed by postcolonial feminist theory, this article will locate these discourses in broader ‘turn to the girl’ and ‘turn to agency’ in international development, analysing how Third World girlhood, agency, resistance and voice are conceptualised. Girls are constructed as threatened by their families and communities, with agency exercised through resistance and materialised by their voice. I argue that this ignores the complexity of decision-making processes and broader structural factors related to child marriage, so that interventions providing ‘empowerment-as-information’ for girls to be agents of change instead leave them in a state of informed powerlessness.     

Intent to Exit: Why Do US Federal Employees Leave?

This study examines factors that may influence an employee to exit an organization. Factors that are considered to influence exit are derived primarily from Hirschman’s model of exit, voice, loyalty, and neglect. Other variables considered are public service motivation, job satisfaction, pay satisfaction, gender, race, supervisory status, and agency. The study evaluates the relationships between these variables using data obtained from the United States’ 2010 Federal Employee Viewpoint Survey. Overall, the data suggest that there is a slight tendency of public employees to be intrinsically motivated.     

Families in need of supervision

Abstract

Even judiciaries that do not have histories of serious or pervasive corruption need to be watchful lest what I refer to as judicial corrosion occurs. Drawing on studies of institutional entropy, I identify some of the external and internal sources of such corrosion and comment briefly on challenges that face its prevention or repair within the judicial realm.     

自媒体时代官媒重拾话语权之诉求

随着自媒体时代的到来,所谓的"互联网狂欢"改变了信息传播的固定模式。话语权即控制舆论的权力,谁掌握了话语权,谁就掌握了社会舆论走向。作为党和政府的"喉舌"的官媒,在与新兴媒体抢占舆论高地的博弈中,由于政府公信力下降导致官媒话语被"习惯性质疑",在信息的即时性、交互性日益增强情境下,官媒试图重构权力话语体系,重拾话语权,以期走出正面临的塔西佗陷阱。     

The Changing Paradigm of Pacific Regional Politics

Abstract

Analyses of recent developments in Pacific regional politics have emphasized the role of ideas and new thinking about how the Pacific should engage in global and regional diplomacy (the so-called ‘paradigm shift’). These ideas include the call for regional self-determination, the claim that Pacific island states need to engage more assertively in global diplomacy, the call for a ‘genuine Pacific voice’ to be heard in global forums, recognition that a ‘one region approach’ need not be the best approach, the reconfiguring of diplomatic alliances to leverage Pacific island positions better in global forums, and embracing non-state actors as equal partners. The importance of this paradigm shift is that it challenges many prevailing stereotypes and assumptions about Pacific islands diplomacy. It recognizes and facilitates choices and alternatives. It emphasizes the imperative of being proactive and of taking responsibility for the challenges facing the Pacific islands; and being creative in finding solutions. This is a fundamentally empowering transformation. But in order to understand where this might lead, it is necessary to explore where this transformation has so far played out. Case studies at the national, regional and global levels give insights into the impact and potential of the new Pacific diplomacy.     

利用长时平均FFT功率谱进行话者识别

长时平均FFT(fast fourier transform)功率谱是利用快速傅立叶变换FFT方法算出的每帧的短时频谱的长时平均。FFT功率谱中可以直观反映出基音周期以及各谐波能量、频率、形态和它们相互的组合关系,同时能反映出谐波能量较高的尖峰所对应的声道共振峰。根据本实验,对元音提取长时平均FFT图谱进行图谱形态比对和重叠比对,是话者识别的有效方法。     

‘Where am I in this story?’ – listening to activist women writers*

This study discusses the dynamic roles of activist women in militarized societies. It offers an analysis of the perspectives of Israeli activist women regarding their roles as women activists and writers. In their non-fiction writings, these activist women voice their resistance and document both their everyday lives and political perspectives about the Israeli-Palestinian conflict and their socio-political activism and resistance to the Israeli occupation. These women were interviewed regarding their perspectives and struggles. The interviews were analysed by applying narrative analysis – the ‘Listening Guide’ methodology – to explore their various voices and narratives. By using this methodology, this study sought to uncover additional knowledge regarding women’s forms of resistance in militarized societies. We emphasize the importance of women citizens’ voices, narratives and points of view by presenting activist women’s critical insights on activism, the Israeli-Palestinian conflict and literature. Their curiosity, agency, critical perspectives, and resistance can be viewed as counter-narratives that de-centre Israeli hegemonic masculinity and demand a critique of the national and militarized ideology. Our article seeks to demonstrate the importance of women’s perspectives, everyday life experiences, dilemmas and struggles in a reality of conflict and war.     

Injustice and Employees' Destructive Responses: The Mediating Role of State Negative Affect

The focus of this study was employees' destructive behavioral intentions (i.e., exit, neglect, and aggressive voice) as a result of perceived injustice. In order to get an indication of the generalizability of the results, two studies employing different methodologies were conducted among different samples: a survey study (Study 1) among 244 female maternity nurses from The Netherlands, and a vignette study (Study 2) among 71 male and 43 female employees from an international company in South Africa. Furthermore, the second study tested whether the effects of injustice on destructive behavioral intentions were mediated by state negative affect. Two models appear to fit the data well. The first model suggests that interactional injustice gives rise to negative behavioral reactions through an increase in state negative affect. The second model shows that procedural justice can buffer the negative effects of low distributive justice. Specifically, employees report more negative affect and, subsequently, a stronger tendency to leave the organization only when both distributive and procedural justice are low. The theoretical and practical implications of these findings are discussed.     

电子伪装语音的变声规律研究

本文以目前社会上流行的两款不同类别的电子伪装语音器材为对象,对多名实验对象变声前、后的声学特征(基频、共振峰、声调、能量和过零率等)进行了深入的实验分析。实验结果和分析表明,变声相对于原声,其声学特征变化是有规律的,根据这一声学特征变化规律,对变声语音逆变声就能得到与原声符合很好的恢复语音,这为深入开展对经过电子伪装的语音进行同一人鉴定奠定了基础。