基于备件需求优先级的随机库存控制模型研究

根据所安装设备发生故障时对生产过程的影响,备件的需求可划分为关键需求和非关键需求。基于此,研究了需求服从泊松分布、提前期等于常数、基于(S-1,S)订货策略的随机库存模型,提出当库存降低到预定水平,则预留存货以满足关键需求的控制策略,并给出了不同优先级备件服务水平的计算方法。最后结合某核电站库存管理中的一个实例,验证了本文所设计模型的优点和准确性。     

Invisible no more: White racialization and the localness of racial identity

What does it mean to be white? How do whites see themselves and other white people, racially? These are empirical questions, questions that sociologists have spent decades trying to answer. Among numerous findings, none have been as pronounced as white racelessness; the theory that whites possess invisible, or raceless, identities. Despite its influence on our understanding of race, the construction of whiteness as an invisible identity has been called into question, as a number of scholars, past and present, focus more on the local dynamics of white racialization. For a growing cross-section of whites, modern cultural and demographic change has shattered the illusion of white normality, causing them to confront their own racial identities in intimate and explicit ways. How do these and other whites respond to being seen as white? Though adept at detailing the way whites conceptualize white racial identity, generally, sociologists have been far less successful in examining how whites conceptualize white racial identity, locally. In this article, after reviewing both general and local constructions of white racial identity, I argue that going forward, researchers need to dispense with contextual overgeneralizations and focus more the localness of white identity formation.     

Shame and recognition: Social work practice with vulnerable young people

Drawing on the findings from a longitudinal study of vulnerable young people's transitions to adulthood, this paper explores the ideas of shame and recognition. The young people, aged between 12 and 17 years at the first interview, had experienced chronic exposure to adversity from an early age (abuse, violence, mental health issues, addictions, and expulsion from school). They were clients of statutory and non‐governmental services: child welfare, juvenile justice, remedial education, and mental health services. This paper draws on the qualitative phase of the study (n = 107); young people and a trusted other, nominated by the young person, participated in three annual qualitative interviews. Interviews focused on young people's experiences of services, key transitions, their relationships, and the strategies they used to locate support and resources. Experiences of shame, misrecognition, and seeking recognition emerged as dominant themes in the young people's accounts, and these are explored in this paper. The paper concludes with a discussion on responsive social work interventions that generate a deeper understanding of young people's experiences of shame and misrecognition. Central to this practice are critical and relational social work practices that actively support young people to achieve recognition.     

Hearts and minds: goal-orientation and intercultural communicative competence of ROTC cadets learning critical languages

ABSTRACT

This qualitative case study investigates the development of intercultural communicative competence (ICC) of US Reserve Officer Training Corps cadets and their goals in learning critical languages. Semi-structured interviews were conducted and data were examined through inductive, thematic analysis. Findings indicate that goals appeared in clusters, with mutually reinforcing goals of military application and personal pleasure. This process affected perceived ICC and gains in sociolinguistic competence, leading to change in attitudes and critical cultural awareness.     

Building Pedagogical and Activist Relationships

As a white professor who teaches courses that deal primarily with the issue of race, the question of whether pedagogy and activism mix is ever present in my mind. The answer to this question is of course complicated and yet, I answer affirmatively. Drawing upon social movement theory and the central tenets of critical pedagogy, I argue that pedagogy and activism can work very well together in the classroom, but that my allegiance to a critical pedagogy does present some necessary constraints on my classroom activism.     

Consent requires a relationship: rethinking group consent and its timing in ethnographic research

ABSTRACT

Activist groups in ethnographic research re-negotiated our Ethics Committee’s expected order of securing consent before data collection, demonstrating the importance of researchers taking time to build relationships first. Although the Ethics Committee expected us to obtain group consent, the literature provides little guidance on how to do this. We developed a Memorandum of Understanding to summarize what forms of participant observation each group agreed to and how we would reciprocate. In this article, we (re)conceptualize consent, using analogies to consent in social contract theory and sexual relations to offer a critical perspective on what constitutes consent. We argue that taking time to build relationships before expecting research participants to consent and replacing informed consent with a negotiated agreement is a more ethical approach. We advocate for Ethics Committees to expand the meaning of ‘informed consent’ and review its timing, especially for ethnographic research with groups.     

全球合作项目“深度学习新教学法”述评与建议

深度学习是当前全球教育改革的热点。以全球合作项目"深度学习新教学法"（New Pedagogies for Deep Learning，简称NPDL）为案例，对NPDL项目的产生背景、核心概念和深度学习设计等内容进行了深入剖析。研究发现：NPDL项目致力于培养全球公民，丰富了深度学习的内涵；建立伙伴关系和开展好奇心驱动的学习活动是激活深度学习的重要策略；以革新学习过程为核心的深度学习教学法反映了教育变革的新方向；嵌入式的协同探究形成了深度学习从实践走向理论的研究新范式。     

网络批评性话语的勃兴与国家治理：困境及应对

“网络社会的崛起”使中国的舆论生态发生了历史性变化，当前由于社会政治矛盾、文化与意识形态整合困境、政治机会环境、新媒介平台、网民群体心理等因素，我国网络批评性话语方兴未艾，给政治秩序的稳定带来了一定挑战。我们有必要正视其成因，并不断完善因应之道，以期构筑合理的公共空间与实现稳定的国家治理。     

Discursive shifts associated with coming out: A corpus‐based analysis of news reports about Ricky Martin

This study seeks to shed light on the discursive effects of a public sexual identity declaration as they surface in the language used to construct the social actor in question. Subscribing to queer linguistically informed critical discourse studies, it builds on and advances the theoretical discussion of coming out in language and sexuality studies. The investigation analyses a corpus of news reports about Ricky Martin, comparing two sub‐corpora, one with texts published before and another with texts from after Martin's public coming out as a gay man in 2010. A keyword analysis is performed to identify linguistic traces of central discourses manifesting in the two corpora. The quantitative analysis is complemented by an in‐depth qualitative analysis of the discursive construction of ethnicity and sexuality in two sample texts. The findings are discussed in the light of discursive shifts between pre‐ and post‐coming‐out phases and clashes between coming‐out stereotypes and the coming‐out experiences of Latino gay men.     

Visionary evaluation: Approaching Aboriginal ontological equity in water management evaluation

The 2017 Traditional Owner evaluation of the implementation of the Murray-Darling Basin Plan developed an approach to evaluation that tested the use of Standpoint Theory in the field of natural resource management. This methodological choice was intended to enable First Nation approaches to data generation and use in equal measure to non-indigenous approaches. The method is implemented as a nested, up-hierarchy of scale, enabling a pan-optican dimension of vision from "below" and "above". The paper does not present the evaluative results regarding the implementation of the Plan because that information is co-owned by the participating Nations for their uses. Instead, and in respect of that arrangement, the paper presents the evaluation practices funded by the Murray-Darling Basin Authority. The methodology was negotiated and implemented with the Nations in the pilot study as a co-production across cultural boundaries. The approach was then evaluated by the participants, and these results are reported. All those reviewing the methodology were directly involved in some aspect of the evaluation, 64 % of whom identified as Traditional Owners, 67 % of whom were involved in high level decision-making about the evaluation approach. Traditional Owners rated cultural competence of the tested approach at 68 %, the benefits of the approach at 75 %, satisfaction with the standard of the evaluation at 72 %, and satisfaction with complying with the Basin Plan’s requirements for evaluation at 78 %. Recommendations for broader engagement and better science communication are made.