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1.
Two habituation experiments were conducted to investigate how 4‐month‐old infants perceive partly occluded shapes. In the first experiment, we presented a simple, partly occluded shape to the infants until habituation was reached. Then we showed either a probable completion (one that would be predicted on the basis of both local and global cues) or an improbable completion. Longer looking times were found for the improbably completed shape (compared to probable and control conditions), suggesting that the probable shape was perceived during partial occlusion. In the second experiment, infants were habituated to more ambiguous partly occluded shapes, where local and global cues would result in different completions. For adults, the percept of these shapes is usually dominated by global influences. However, after habituation the infants looked longer at the globally completed shapes. These results suggest that by the age of 4 months, infants are able to infer the perceptual completion of partly occluded shapes, but for more ambiguous shapes, this completion seems to be dominated by local influences. 相似文献
2.
Francis A. O’Connell 《Journal of Labor Research》1991,12(4):322-325
Readers wishing to correspond with Mr. O’Connell may do so through the editorial office of the Journal. 相似文献
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We review and critique the research literature on sales force automation (SFA). SFA involves the application of information technology to support the sales function. SFA software provides functionality that helps companies manage sales pipelines, track contacts and configure products, inter alia. The paper is organized into four main sections. First, we review the SFA environment, identifying definitions, vendor classifications and software attributes. We then move to a review and classification of the academic research that has been published on SFA. We find that the entire body of SFA knowledge attempts to answer just four questions: Why do organizations adopt SFA? What are the organizational impacts of SFA? What accounts for the success or failure of SFA projects? What accounts for variance in salesperson adoption of SFA? We then critique this body of knowledge on a number of theoretical and methodological grounds, and finally propose a research agenda for the future. 相似文献
5.
Maureen Miles Ysanne Chapman Karen Francis Beverley Taylor 《Women and birth : journal of the Australian College of Midwives》2013,26(4):273-276
BackgroundHeideggerian hermeneutic phenomenology has been used widely to understand the meaning of lived experiences in health research. For midwifery scholars this approach enables deep understanding of women's and midwives’ lived experiences of specific phenomena. However, for beginning researchers this is not a methodology for the faint hearted. It requires a period of deep immersion to come to terms with at times impenetrable language and perplexing concepts.ObjectivesThis paper aims to assist midwives to untangle and examine some of the choices they face when they first come to terms with an understanding of this methodology and highlights the methodology's capacity to reveal midwifery authenticity and holistic practice.DiscussionThe illumination of a selection of various concepts underpinning hermeneutic phenomenology will inform midwives considering this methodology as suitable framework for exploring contemporary midwifery phenomena. 相似文献
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Samuel Adomako Joseph Amankwah-Amoah George Obeng Dankwah Albert Danso Francis Donbesuur 《Journal of International Management》2019,25(4):100666
Much of the existing scholarly works portray institutional voids (IVs) in emerging economies as impeding forces against the development of new ventures. However, little attention has been paid to how such voids generate positive outcomes in emerging market new ventures. Drawing on the institutional theory, we propose IVs as crucial enablers of new venture internationalization. In addition, we investigate both how and when IVs enhance the degree to which new ventures internationalize by examining international learning effort (ILE) as a mediator and two domestic market environmental factors (i.e., environmental dynamism and competitive intensity) as important contingencies. We test our moderated mediation model using primary data gathered from 211 new ventures from Ghana. We found that ILE mediates the relationship between IVs and new venture internationalization and that both environmental dynamism and competitive intensity moderate the indirect relationship between home-country IVs and new venture internationalization. We discuss the theoretical and practical implications of this study. 相似文献
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Kirsten J. Hancock Francis Mitrou Jenny Povey Alice Campbell Stephen R. Zubrick 《The Australian journal of social issues》2018,53(1):34-55
The transfer of advantage and disadvantage across multiple generations is receiving increasing attention in the international literature; however, transfers of resources across multiple generations in Australian families are less well understood. Using a longitudinal dataset of Australian children, we have the opportunity to not only investigate the transfer of educational resources across three generations in Australia, but also investigate the gendered nature of these transfers, which has been a limitation of other studies. We find no evidence of individual grandparent education effects on numeracy and reading scores for grandchildren in Year 3, independent of parent educational attainment and other covariates. However, significant effects on numeracy and reading scores were observed for children in families where both the grandmother and grandfather in maternal and paternal grandparent sets had high educational attainment (a diploma or university qualification), and where either or both the mother and father had a university qualification. These results suggest that the contribution of grandparents to the academic achievement of grandchildren cannot be fully explained by the parent generation and that the concentration of human capital in families contributes to educational inequalities across multiple generations that can be observed by eight years of age. 相似文献
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Yu Yan Dongxiao Yu Yuexuan Wang Jiguo Yu Francis C. M. Lau 《Journal of Combinatorial Optimization》2016,31(3):996-1012
More and more wireless networks and devices now operate on multiple channels, which poses the question: How to use multiple channels to speed up communication? In this paper, we answer this question for the case of wireless ad-hoc networks where information dissemination is a primitive operation. Specifically, we propose a randomized distributed algorithm for information dissemination that is very near the optimal. The general information dissemination problem is to deliver \(k\) information packets, stored initially in \(k\) different nodes (the packet holders), to all the nodes in the network, and the objective is to minimize the time needed. With an eye toward the reality, we assume a model where the packet holders are determined by an adversary, and neither the number \(k\) nor the identities of packet holders are known to the nodes in advance. Not knowing the value of \(k\) sets this problem apart from broadcasting and all-to-all communication (gossiping). We study the information dissemination problem in single-hop networks with bounded-size messages. We present a randomized algorithm which can disseminate all packets in \(O(k(\frac{1}{\mathcal {F}}+\frac{1}{\mathcal {P}})+\log ^2n)\) rounds with high probability, where \(\mathcal {F}\) is the number of available channels and \(\mathcal {P}\) is the bound on the number of packets a message can carry. Compared with the lower bound \(\varOmega (k(\frac{1}{\mathcal {F}}+\frac{1}{\mathcal {P}}))\), the given algorithm is very close to the asymptotical optimal except for an additive factor. Our result provides the first solid evidence that multiple channels can indeed substantially speed up information dissemination, which also breaks the \(\varOmega (k)\) lower bound that holds for single-channel networks (even if \(\mathcal {P}\) is infinity). 相似文献
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Kathleen H. Powell Ann Bristow Francis L. Precht 《Journal of Community Practice》2019,27(3-4):404-413
ABSTRACTSocial workers can mobilize vulnerable populations to shape policy decisions about industrial practices that could have adverse impacts on their wellbeing. One such practice is hydraulic fracturing or “fracking” to extract oil and natural gas from shale rock deposits. There is scant social work literature on mobilizing opposition to fracking despite a proliferation of literature from other disciplines. This article documents the campaign in Maryland that led to the adoption of the first legislative ban on fracking in a U.S. state with shale gas reserves, using social movement theory to identify factors that led to this successful outcome. 相似文献
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