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691.
Walter J. Nicholls 《Theory and Society》2014,43(1):23-49
This article examines how undocumented immigrants mobilize for greater rights in inhospitable political and discursive environments. We would expect that such environments would dissuade this particularly vulnerable group of immigrants from mobilizing in high profile campaigns because such campaigns would carry high risks (deportation) and have little chance of success. However, we have witnessed many mobilizations by undocumented immigrants in both Europe and the United States over the past 20 years. This article uses the case of undocumented youths in the United States (DREAMers) to examine how a group of undocumented immigrants have overcome important barriers and become a powerful voice for immigrant rights in the country. The article suggests that while undocumented immigrants faced inhospitable contexts, cracks and “niche-openings” they continued to present themselves to groups with the right set of cultural, legal, and economic attributes. Immigrants in possession of these attributes (in this case, youth) could target a niche-opening and argue that they are particularly deserving of legalization. This article also highlights an important dilemma: In contexts characterized by general closure and hostility, narrow mobilizations targeting niche-openings provide the only path to legal status for some, but they can also differentiate (discursively and legally) between “deserving” and “undeserving” undocumented immigrants. Differentiation can contribute to stratifying the immigrant population, with those deemed more deserving facing greater rights and entitlements and those deemed less deserving facing greater restrictions and repression. This carries the risk of magnifying normative and legal inequalities between immigrant groups while introducing many points of conflict within the broader immigrant rights movement. 相似文献
692.
Tony Leino Torbjørn Torsheim Ståle Pallesen Alex Blaszczynski Dominic Sagoe Helge Molde 《International Gambling Studies》2016,16(3):470-480
Losses disguised as wins (LDWs) appear to reinforce gambling persistence. However, little research has examined this phenomenon with real gamblers in natural gambling settings. We aimed to examine the relationship between within-session outcome size and subsequent gambling persistence. Account-based gambling data of individuals playing LDW games over a randomly selected day (2,035,339 bets made by 8636 individuals) was examined. We used a logistic mixed effects model to examine the relationship between the outcome of the previous bet (loss, LDW and real wins) and the odds of continuing betting in a game session. The odds of continuing betting in a game session were positively associated with the outcome of the previous bet. Compared to LDWs, losses lowered the odds of continuing a game session. In contrast, real wins implied greater odds of continuing a game session compared to LDWs. It is concluded that LDWs increase the likelihood of continuing betting compared to losses, but decrease the likelihood of continuing to gamble compared to real wins. As LDWs increase the number of bets made within a gambling session, and hence within-session gambling persistence, LDWs may potentially play an etiological role in the development of gambling problems over time. 相似文献
693.
Walter Lorenz 《European Journal of Social Work》2016,19(3-4):455-467
The current debate on social work research methods shares some of the features of a general ‘crisis in epistemology’ evident in many academic disciplines which in turn is related to unresolved issues concerning scientific knowledge production in modernity. Social work's own attempts to develop a research basis, as its entry into modernity, shows historically a polarisation between a leaning towards positivist models as well as an affirmation of the importance of reflecting on personhood and the self in line with hermeneutic principles. It is hypothesised that political interests emanating from neoliberal social policies favour currently a positivist meaning of ‘evidence’ in practice research with implications of ‘value neutrality’ while social work practice needs to always address persons and their structural context equally. Therefore the polarisation between positivist and hermeneutic research orientations must be maintained as an impulse to acknowledge specific human qualities. Beyond implications for researcher-practitioners this perspective also contributes to a better understanding of future directions of epistemology in other disciplines. 相似文献
694.
Tony Porter 《Globalizations》2016,13(3):270-284
AbstractWhile it is now widely recognized that globalization is socially constructed, time is often still seen as a natural unalterable force. Drawing on the literature on the social construction of time, we explore the role of human agency in the interaction of time and globalization by developing the concept of temporal systems. These systems are assemblages that bring together temporal artefacts such as clocks and schedules, the temporalities of the natural world and the body, and social practices involving agency, power, and organization. We then explore, through four illustrative examples, how such systems interact with and constitute globalization. These examples are: the initial emergence and contemporary operation of world standard time; the manipulation of the future and speed in global financial markets; the rise of informal international organizations in global governance; and the role of temporality in the strategic behaviour of multinational corporations. 相似文献
695.
Supervisor Support Buffers Daily Psychological and Physiological Reactivity to Work‐to‐Family Conflict
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David M. Almeida Kelly D. Davis Soomi Lee Katie M. Lawson Kimberly N. Walter Phyllis Moen 《Journal of marriage and the family》2016,78(1):165-179
Using a daily diary design, the current study assessed within‐person associations of work‐to‐family conflict with negative affect and salivary cortisol. Furthermore, the authors investigated whether supervisor support moderated these associations. Over 8 consecutive days, 131 working parents employed by an information technology company answered telephone interviews about stressors and mood that occurred in the previous 24 hours. On Days 2–4 of the study protocol, they also provided 5 saliva samples throughout the day that were assayed for cortisol. Results indicated a high degree of day‐to‐day fluctuation in work‐to‐family conflict, with employed parents having greater negative affect and poorer cortisol regulation on days with higher work‐to‐family conflict compared to days when they experience lower work‐to‐family conflict. These associations were buffered, however, when individuals had supervisors who offered support. Discussion centers on the use of dynamic assessments of work‐to‐family conflict and employee well‐being. 相似文献
696.
Building upon intensive ethnographic research on the undocumented youth movement in Los Angeles, this paper investigates the backstage work done by the leaders and activists within a movement to create cohesive and disciplined frontstage performances. These backstage techniques and strategies are important to examine because frontstage unity is not natural or automatic. As most campaigns are made up of heterogeneous individuals, organizations and groups, frontstage coherence is something that needs to be worked upon. We show that this essential backstage work consists of 1) training activists to become disciplined frontstage performers; 2) converging the feelings of activists through emotionally intensive disciplinary techniques; and 3) managing differences and conflicts in the free spaces of the movement. This paper thus aims to encourage scholars to look under the hood of public protests and give greater weight to studying the backstage work needed to produce strong and powerful voices. 相似文献
697.
698.
Walter L. Wallace 《Sociological Forum》1996,11(4):631-637
A reply to the former editor argues the priority of standardized empirical definitions in scientific studies of causation,
proposes a small set of definitions to be standardized in sociology, and cites exemplars of such standardization in other
fields. 相似文献
699.
Tony Lindeberg 《Journal of applied statistics》1994,21(1):225-270
An inherent property of objects in the world is that they only exist as meaningful entities over certain ranges of scale. If one aims to describe the structure of unknown real-world signals, then a multi-scale representation of data is of crucial importance. This paper gives a tutorial review of a special type of multi-scale representation—linear scale-space representation—which has been developed by the computer vision community to handle image structures at different scales in a consistent manner. The basic idea is to embed the original signal into a one-parameter family of gradually smoothed signals in which the fine-scale details are successively suppressed. Under rather general conditions on the type of computations that are to be performed at the first stages of visual processing, in what can be termed 'the visual front-end', it can be shown that the Gaussian kernel and its derivatives are singled out as the only possible smoothing kernels. The conditions that specify the Gaussian kernel are, basically, linearity and shift invariance, combined with different ways of formalizing the notion that structures at coarse scales should correspond to simplifications of corresponding structures at fine scales-they should not be accidental phenomena created by the smoothing method. Notably, several different ways of choosing scale-space axioms give rise to the same conclusion. The output from the scale-space representation can be used for a variety of early visual tasks; operations such as feature detection, feature classification and shape computation can be expressed directly in terms of (possibly non-linear) combinations of Gaussian derivatives at multiple scales. In this sense the scale-space representation canserve as a basis for early vision. During the last few decades, a number of other approaches to multiscale representations have been developed, which are more or less related to scale-space theory, notably the theories of pyramids, wavelets and multi grid methods.Despite their qualitative differences, the increasing propularity of each of these approaches indicates that the crucial notion of scale is increasingly appreciated by the computer.vision community and by researchers in other related fields. An interesting similarity to biological vision is that the scale-space operators closely resemble receptive field profiles registered in neurophysiological studies of the mam- malian retina and visual cortex. 相似文献
700.
This note is concerned with the problem of resource allocation under uncertainty in a research and development laboratory. A distinction is defined between project interrelationships that are specific (or internal) to certain projects and interrelationships resulting from external environmental factors. Formulations are introduced that allow both types of interrelationships to be formally included in a resource allocation optimization model. In the case of external environmental factors, an example is presented and analyzed. 相似文献