Academic literature on the topic 'Concealed Contributor'
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Journal articles on the topic "Concealed Contributor"
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Smith, Michael R., and Matthew Petrocelli. "The Effect of Concealed Handgun Carry Deregulation in Arizona on Crime in Tucson." Criminal Justice Policy Review 30, no. 8 (2018): 1186–203. http://dx.doi.org/10.1177/0887403418782739.
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In 2010, the Arizona legislature effectively deregulated concealed handgun carry in the state by passing Senate Bill (SB) 1108, which eliminated licensing and training requirements for concealed carry. Although researchers have extensively examined the impact of state adoption of concealed carry laws, almost nothing is known about the effects of deregulating concealed carry altogether. This study contributes to the more guns, less crime debate by examining the impact of Arizona’s decision to deregulate concealed carry. Using a multiple time-series research design with an experimental (Tucson) and control city (El Paso), the present study examines the impact of deregulation on handgun-related violent crime and gun larcenies in Arizona’s second largest city—Tucson. We find that the passage of SB 1108 had no impact on handgun-related offenses that could be expected to change following deregulation. The implications of these findings for policy making and future research are discussed.
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Schoröder, Inge. "Concealed ovulation and clandestine copulation: a female contribution to human evolution." Ethology and Sociobiology 14, no. 6 (1993): 381–89. http://dx.doi.org/10.1016/0162-3095(93)90026-e.
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Meijer, Ewout H., Fren T. Y. Smulders, and Ann Wolf. "The Contribution of Mere Recognition to the P300 Effect in a Concealed Information Test." Applied Psychophysiology and Biofeedback 34, no. 3 (2009): 221–26. http://dx.doi.org/10.1007/s10484-009-9099-9.
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Jackson, Matthew, Fardin Fatahi, Kholoud Alabduljader, Charlotte Jelleyman, Jonathan P. Moore, and Hans-Peter Kubis. "Exercise training and weight loss, not always a happy marriage: single blind exercise trials in females with diverse BMI." Applied Physiology, Nutrition, and Metabolism 43, no. 4 (2018): 363–70. http://dx.doi.org/10.1139/apnm-2017-0577.
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Individuals show high variability in body weight responses to exercise training. Expectations and motivation towards effects of exercise on body weight might influence eating behaviour and could conceal regulatory mechanisms. We conducted 2 single-blind exercise trials (4 weeks (study 1) and 8 weeks (study 2)) with concealed objectives and exclusion of individuals with weight loss intention. Circuit exercise training programs (3 times a week (45–90 min), intensity 50%–90% peak oxygen uptake for 4 and 8 weeks) were conducted. Thirty-four females finished the 4-week intervention and 36 females the 8-week intervention. Overweight/obese (OV/OB) and lean female participants’ weight/body composition responses were assessed and fasting and postprandial appetite hormone levels (PYY, insulin, amylin, leptin, ghrelin) were measured before and after the intervention for understanding potential contribution to individuals’ body weight response to exercise training (study 2). Exercise training in both studies did not lead to a significant reduction of weight/body mass index (BMI) in the participants’ groups; however, lean participants gained muscle mass. Appetite hormones levels were significantly (p < 0.05) altered in the OV/OB group, affecting fasting (−24%) and postprandial amylin (−14%) levels. Investigation of individuals’ BMI responses using multiple regression analysis revealed that levels of fasting leptin, postprandial amylin increase, and BMI were significant predictors of BMI change, explaining about 43% of the variance. In conclusion, tested exercise training did not lead to weight loss in female participants, while a considerable proportion of variance in body weight response to training could be explained by individuals’ appetite hormone levels and BMI.
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Ripollés, Carmen. "Fictions of Abundance in Early Modern Madrid: Hospitality, Consumption, and Artistic Identity in the Work of Juan van der Hamen y León." Renaissance Quarterly 69, no. 1 (2016): 155–99. http://dx.doi.org/10.1086/686329.
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AbstractThis article examines how still-life painting contributed to the creation of a distinct urban aristocratic culture in seventeenth-century Madrid. Focusing on a group of paintings by Juan van der Hamen, the article situates these images within the context of the picture gallery and the practice of aristocratic hospitality. By giving visual form to this new urban mode of magnificence, Van der Hamen’s still lifes created a fiction of abundance that glossed over Madrid’s economic realities. At the same time, Van der Hamen concealed signs of manual craftsmanship and commercial interest in order to advance and ennoble his own artistic identity.
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Miloradović, Goran. "Losses of the Serbian Army in World War One and the Creation of Yugoslavia: Contribution to the Interpretation of the Causes and Circumstances of South Slav Unification." Transcultural Studies 10, no. 2 (2014): 1–16. http://dx.doi.org/10.1163/23751606-01002006.
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This research paper is devoted to the issues of the human losses of the Army of the Kingdom of Serbia in World War One and the interpretation of the consequences of these losses. It is claimed that the exceptionally high losses were a decisive factor which propelled the decision of the Serbian Government in favour of the formation of Yugoslavia. This fact was concealed during the life of the state of Yugoslavia. The paper draws on Russian and Serbian archival material which has not been processed to date.
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Conway Morris, Simon, Jennifer F. Hoyal Cuthill, and Sylvain Gerber. "Hunting Darwin's Snark: which maps shall we use?" Interface Focus 5, no. 6 (2015): 20150078. http://dx.doi.org/10.1098/rsfs.2015.0078.
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The 11 contributions to this thematic volume touch on a large range of issues concerning the landscape of biological possibilities and the manner by which it may be traversed by evolving life forms. The contributors also consider how this landscape might be mapped by evolutionary biologists, with an emphasis on how one might identify the limits of such maps. While some agreements emerge on the question of limits on evolution, not surprisingly few contributors look towards the same horizons. Rather than providing a potted summary of the 11 papers, our aim in this introduction is to identify eight principal themes that might serve as common ground and, as importantly, to listen out for the sound of rushing subterranean waters that hint at caverns of concealed knowledge. By no means all of these themes are addressed by all authors, but in gathering the many strands of enquiry we hope that this will allow us to ask: What, if any, are the limits to evolution?
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Han, Kap Su, Sung Woo Lee, Kwang Hoon Park, et al. "Concealed resuscitation-related injuries as reversible cause of recurrent arrest following extracorporeal cardiopulmonary resuscitation." CJEM 19, no. 5 (2016): 404–9. http://dx.doi.org/10.1017/cem.2016.389.
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AbstractA life-threatening cardiopulmonary resuscitation (CPR)-related injury can cause recurrent arrest after return of circulation. Such injuries are difficult to identify during resuscitation, and their contribution to failed resuscitation can be missed given the limitations of conventional CPR. Extracorporeal cardiopulmonary resuscitation (ECPR), increasingly being considered for selected patients with potentially reversible etiology of arrest, may identify previously occult CPR-related injuries by restoring arterial pressure and flow. Herein, we describe two cases of severe CPR-related injuries contributing to recurrent arrest. Each case had ECPR implemented within 60 minutes of the start of CPR. After the presumed cardiac etiology had been addressed with percutaneous coronary intervention, life-threatening cardiovascular injuries with recurrent arrest were noted, and resuscitative thoracotomy was performed under ECPR. One patient survived to hospital discharge.ECPR may provide an opportunity to identify and correct severe resuscitation-related injuries causing recurrent arrest. Chest compression depth >6 cm, especially in older women, may contribute to these injuries.
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Gonzalez Fuster, Gloria, Rocco Bellanova, and Raphaël Gellert. "Nurturing Ob-Scene Politics: Surveillance Practices Between In/Visibilities and Disappearances." Surveillance & Society 13, no. 3/4 (2015): 512–27. http://dx.doi.org/10.24908/ss.v13i3/4.5439.
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Moving away from the traditional framing of surveillance in terms of in/visibility, this article proposes a conceptual journey that investigates the potential of the notions of dis-appearance and ob-scene as alternative theoretical tools. In particular, it explores how these different perspectives can help bringing politics back into the study and the critique of surveillance.Visibility is structurally linked to invisibility, and together they configure the different modes of in/visibility allowing for the very functioning of surveillance. However, the in/visibility dyad rather than merely describe surveillance contributes to its operations and stabilisation. In order to better understand and unpack surveillance it is thus necessary to tackle its practices not only in search of who watches whom, or what, but also by studying what is concealed through in/visibility, through both hiding and exposing, and what is left out of the scene (or being pushed away) in these processes.In a dialogue with surveillance and critical security studies, this contribution examines the disappearance of bodies in the deployment of security scanners and post-Snowden developments to illustrate the productivity of dis-appearance and the emergence of surveillance’s ob-scene. Against this background, the paper argues that through the lens of the ob-scene it is possible to grasp surveillance’s ripples, and open up their political discussion.
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Janssen, Ralf, Mette Jörgensen, Linda Lagebro, and Graham E. Budd. "Fate and nature of the onychophoran mouth–anus furrow and its contribution to the blastopore." Proceedings of the Royal Society B: Biological Sciences 282, no. 1805 (2015): 20142628. http://dx.doi.org/10.1098/rspb.2014.2628.
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The ancestral states of bilaterian development, and which living groups have conserved them the most, has been a controversial topic in biology for well over a hundred years. In recent years, the idea that gastrulation primitively proceeded via the formation of a slit-like blastopore that then evolved into either protostomy or deuterostomy has gained renewed attention and some molecular developmental support. One of the key pieces of evidence for this ‘amphistomy’ theory comes from the onychophorans, which form a clear ventral groove during gastrulation. The interpretation of this structure has, however, proved problematic. Based on expression patterns of forkhead ( fkh ), caudal ( cad ), brachyury ( bra ) and wingless ( wg/Wnt1 ), we show that this groove does not correspond to the blastopore, even though both the mouth and anus later develop from it. Rather, the posterior pit appears to be the blastopore; the posterior of the groove later fuses with it to form the definitive anus. Onychophoran development therefore represents a case of ‘concealed’ deuterostomy. The new data from the onychophorans thus remove one of the key pieces of evidence for the amphistomy theory. Rather, in line with other recent results, it suggests that ancestral bilaterian development was deuterostomic.
Dissertations / Theses on the topic "Concealed Contributor"
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Collin, Charlotte, Therese Olsson, and Sofie Persson. "Collaboration Between Children : working with the educational software Quest Atlantis." Thesis, Blekinge Tekniska Högskola, Sektionen för teknokultur, humaniora och samhällsbyggnad, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3581.
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Will the different levels of knowledge contribute to a collaborative learning? This thesis is based on a tuition experiment with children in small groups, working with the educational software Quest Atlantis at Kensington Park Elementary school in Miami. During this research we have found some similarities and new concepts within Damon’s and Phelps’s three peer learning concepts (1989). Through our investigation of how children collaborate and learn from each other, we discovered that anyone could be a contributor to the collaboration. Through our transcription we defined and measured patterns of collaboration between the pupils, which we used to identify how the pupils collaborated. Out of this we constructed two new concepts, Temporary Expert and Concealed Contributor, which affects the collaboration in different ways.<br>Den här uppsatsen är baserad på experimentell undervisning med barn i små grupper som arbetar med det utbildande mjukvaruprogrammet Quest Atlantis. Undervisningen hölls på Kensington Park Elementary school i Miami, Fl –USA. Under vår undersökning har vi hittat likheter, men även nya koncept inom Damon’s och Phelp’s tre ”peer learning” koncept (1989). Genom vår undersökning om hur barn samarbetar och lär av varandra, upptäckte vi att alla tillförde något till samarbetet. I vår transkribering kunde vi definiera och mäta olika typer av samarbetsmönster mellan eleverna. Med hjälp av dessa samarbetsmönster kunde vi sedan identifiera hur eleverna samarbetade. Utifrån detta konstruerade vi två nya koncept, ”Temporary Expert” och ”Concealed Contributor”, vilka båda påverkar samarbetet.<br>Charlotte Collin 0706-376548 Therese Olsson 0736-292110 Sofie Persson 0733-505105
Books on the topic "Concealed Contributor"
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Jacobs, Lawrence, and Desmond King. Fed Power. 2nd ed. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197573129.001.0001.
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The Federal Reserve, created more than a century ago, is the most powerful central bank in the world. The Fed’s power to alter the money supply, move interest rates, and to intervene to save Wall Street and large corporations helps many Americans, but not equally. Specific industries in finance and large businesses reap lopsided and often concealed benefits while homeowners, workers, and Americans of color slip further behind. The substantial expansion of the Fed’s power circumvents America’s constitutional checks and contributes to economic inequality and racial disparities. The second edition of Lawrence R. Jacobs and Desmond King’s Fed Power extends their decisive account of the Fed’s favoritism toward Wall Street and big business during the 2008–2009 financial crisis to the Fed’s unprecedented responses to the economic collapse sparked by the coronavirus pandemic in 2020. In five chapters, Jacobs and King discuss the origins of the Federal Reserve System, its maneuvering to advance its capacity and autonomy to act independent of Congress and the presidency, and unprecedented support for Wall Street and big business during in the crises in 2008–2009 and 2020. Fed Power analyses how the scale of the Fed’s economic interventions since 2008 is provoking public unease, organized protests and advocacy, and congressional pressure for reform. The deadly coronavirus and the Movement for Black Lives are intensifying the push for democratic accountability, stringent regulation of banks, and new policies to reduce economic inequality and Black-White disparities. Fed Power is a corrective to both the Bank’s self-serving claims of serving the public even as it favors the best-off, and the reluctance of researchers to recognize the Fed’s role in America’s racial and economic inequalities.
Book chapters on the topic "Concealed Contributor"
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Ambach, Wolfgang, Arnoud Arntz, Gershon Ben-Shakhar, et al. "Contributors." In Detecting Concealed Information and Deception. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-812729-2.01002-8.
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Solli, Lene Nygaard. "Spenningsforhold mellom beskyttelse og medvirkning i forskning på familieråd." In Verdier i barnevern. Cappelen Damm Akademisk/NOASP, 2020. http://dx.doi.org/10.23865/noasp.103.ch6.
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In this chapter I discuss research on Family Group Conferences (FGC). The aim is to discuss whether the research recognises the tension between two core values in child protection work: protection and participation. The research is divided into three categories: research on effect, research on experiences, and research on power. Research on effect is based on ambitious outcome goals concerning protection. Research on people’s experiences with FGC contributes with a more nuanced and optimistic evaluation of the model. However, this research does not address power relations involved in the process. Research on power in FGC has a critical perspective and demonstrates how the process can conceal power relations. Even though these contributions shed light on important issues, I argue for the need to include a perspective on power as relational and productive. I consider Foucault’s contribution to the study of power in modern Western societies as a valuable approach.
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McGonagle, Joseph. "Introduction." In Representing Ethnicity in Contemporary French Visual Culture. Manchester University Press, 2017. http://dx.doi.org/10.7228/manchester/9780719079559.003.0001.
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Between 1995 and 1997 the French photographer Luc Delahaye conducted a rather peculiar project. While travelling with a concealed camera on the Paris metro, he began making hundreds of black-and-white portraits of unsuspecting passengers. Eighty of these were then published together as L’Autre (1999). A novel contribution to debates surrounding the visual representation of alterity, Delahaye’s surreptitious photography of strangers raises several legal and ethical issues. Viewers may question, for instance, who qualifies as “other” in his photography and what right, if any, a photographer has to take such photographs of others. They might also wonder whether alterity can be captured on camera at all. The metro passengers whose portraits were published are, visibly, ethnically diverse and the way their images appear can be read as a ...
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Haskell, Yasmin Annabel. "Gentle Labour: Jesuit Georgic in the Age of Louis XIV." In Loyola's Bees. British Academy, 2003. http://dx.doi.org/10.5871/bacad/9780197262849.003.0002.
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René Rapin, the father of Jesuit georgic poetry, manoeuvred his intellectual life between the ancients and the moderns with an instinct for conciliation and compromise that made him an effective apostle to the world. He is best remembered for his Horti, a classical-style didactic poem in four books that celebrated the victory of the moderns over the ancients in horticultural art. His poem, which is secular in appearance, is motivated by (mildly concealed) religion and Jesuito-political impulses, and cultural and literary impulses, particularly those of Virgil. This chapter discusses some of the developments in the Italian Renaissance georgic poetry to better understand Rapin's contribution to the early modern Latin georgic. It considers the latter Latin poems on horticulture and sericulture, which bear resemblance to the ancient model yet are considerably shorter than Virgil's. These latter georgic poems predicated on a Nature that is mild and marvellous, and centred on the artistic manipulation of Nature. In the Italian Renaissance, the ‘recreational georgics’ were dominated by pastoral ease, which is ironic, given the prominent thematic of labour in the original georgics. While the georgics were poems that celebrated nature and labour in gardens, by the turn of the eighteenth century, French Jesuits had identified the didactic genre of georgics as a flexible medium for exhibiting their modern Latinity and advertising their honnêteté.
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Naidoo, Rennie, and Awie Leonard. "A Fluid Metaphor to Theorize IT Artifacts." In Advances in Human and Social Aspects of Technology. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-6126-4.ch004.
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This chapter extends existing metaphors used to conceptualise the unique features of contemporary IT artifacts. Some of these artifacts are innately complex, and current conceptualisations dominated by a “black box” metaphor seem to be too limited to further advance theory and offer practical design prescriptions. Using empirical material drawn from a longitudinal case study of an Internet-based self-service technology implementation, this chapter analyses various aspects of an artifact's fluidity. Post-actor network theory concepts are used to analyse the artifact's varying identities, its vague boundaries, its unexpected usage patterns, and its resourceful designers. The successes and failures of the artifact, its complex and elusive relations, and the unintended ways user practices emerged, are also analysed. This chapter contributes by extending orthodox metaphors that overemphasise a stable and enduring IT artifact—metaphors that conceal the increasingly unpredictable and transitory nature of IT artifacts—with the distinctive characteristics of fluidity. Several prescriptions for the design and management of fluid IT artifacts are offered.
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Natale, Simone. "To Believe in Siri." In Deceitful Media. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190080365.003.0007.
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AI voice assistants are based on software that enters into dialogue with users through speech in order to provide replies to the users’ queries or execute tasks such as sending emails, searching on the web, or turning on a lamp. Every assistant is represented as an individual character or persona (e.g., “Siri” or “Alexa”) that despite being nonhuman can be imagined and interacted with as such. Focusing on the cases of Alexa, Siri, and Google Assistant, this chapter argues that voice assistants activate an ambivalent relationship with users, giving them the illusion of control in their interactions with the assistants while at the same time withdrawing them from actual control over the computing systems that lie behind these interfaces. The chapter illustrates how this is made possible at the interface level by mechanisms of projection that expect users to contribute to the construction of the assistant as a persona, and how this construction ultimately conceals the networked computing systems administered by the powerful corporations who developed these tools.
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Chang, Jing Jing. "Introduction." In Screening Communities. Hong Kong University Press, 2019. http://dx.doi.org/10.5790/hongkong/9789888455768.003.0001.
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This introduction chapter outlines the theoretical framework of the book, and the methodological potential of the act of “screening,” when exploring the interplay between image and idea, politics and culture, film talent and audience in postwar Hong Kong film culture. While concepts of reflecting and viewing imply a unidirectional relationship between film and subject, the author argues that “screening” focuses more on the processes through which cinema contributed to the building of Hong Kong’s postwar community and identity. By using the double meaning of “screening” as both revealing and concealing, the author argues that postwar Hong Kong cinema—which in this book include 1950s and 1960s official documentary films, leftist family melodrama, and youth films— both conceals the anxieties of the British colonial government during the Cold War, and exposes the different narratives constructed by local filmmakers about what it means to be Chinese citizens during the postwar period. This introduction also takes into consideration the importance of postwar Hong Kong audiences, both real and implied, whose spectatorship was negotiated at the intersection colonialist and nationalist “address” and a familial and localized “reception.” This study has implication for the fields of Hong Kong, Chinese cinema, Cold War, and film reception studies.
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Chang, Jing Jing. "The Nanyang Ethos and Engendering the Chinese Overseas Experience." In Screening Communities. Hong Kong University Press, 2019. http://dx.doi.org/10.5790/hongkong/9789888455768.003.0006.
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Chapter 5 argues that Chinese overseas is a privileged narrative focus providing a vantage point from which to explore the importance of Southeast Asia or Nanyang as ethos and imaginary in 1950s and 1960s Hong Kong films. As a border-crossing process and imaginary, Nanyang not only contributed to the survival of Hong Kong’s film industry between the 1950s and 1960s, but it also fuelled the transformation and construction of the colony as a nodal site amid 1960s industrialization. In order to explore Nanyang’s role in Hong Kong’s narrative path toward industrial modernity, this chapter first examines the shifting colonial, statist and cinematic conceptions of Cold War citizenship, allegiance, nationality, and gendered labor. Second, this chapter discusses two politically-driven filmic projections of the Nanyang ethos, arguing that both films continue to conceal contentious ideological and bipolarized conceptions of Chinese national subjectivity. The chapter ends with an analysis on The Story between Hong Kong and Macau (Yishui ge tianya, dir. Cho Kei, 1966), which moves beyond a paternalistic studio-centered approach to reveal how narratives about the travelling Chinese woman and the Nanyang continue to negotiate with narratives of gendered work and gendered economy in the process of screening Hong Kong’s modern industrial community.
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Mainwaring, Ċetta. "At Europe’s Edge." In At Europe's Edge. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198842514.003.0004.
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The fourth chapter turns to the policies and practices that migrants encounter once they arrive in Malta and on EU territory. After a review of the history of migration to the island state and the contemporary migration situation, it traces migrant journeys from the detention centres that await them upon arrival to possible deportation. By examining the sites and processes where migrants continue to be securitized within the border, the chapter argues that even when rescued from the sea, migrants do not escape political, social, and economic marginalization. The securitization of migration contributes to the construction of crisis and fuels racism and xenophobia within the host population. Moreover, this ‘othering’ occurs before migrants arrive on EU territory and is fundamentally related to discourse, policies, and practices at sea. The language of rescue strips migrants at sea of agency, reduces them to victims, and in turn allows for their continued marginalization once they arrive on EU territory. Yet, migrants resist this marginalization. Throughout the chapter, migrant accounts of experiences within host states demonstrate their agency and the narrow room for manoeuvre they are sometimes able to exploit. Ignoring this agency reifies the power of the state to ‘secure’ borders and control migration, and conceals the contested politics of mobility and security. Such encounters question traditional conceptualizations of sovereignty, security, and citizenship as they illustrate alternative modes of seeking security that move beyond the state and citizenship.
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Brown, John Seely, and Paul Duguid. "Enacting Design for the Workplace." In Usability: Turning Technologies into Tools. Oxford University Press, 1993. http://dx.doi.org/10.1093/oso/9780195075106.003.0010.
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Innovative design for the workplace runs up against inadequate understanding of both work and design practices. Ideas about work practices comprise an odd mixture of folklore and explicit, programmatic descriptions. Thus, paradoxically, a call for union members to “work to rule” can bring a workplace to a complete hall: no set of rules can describe or define what work really is. Conventional ideas about design practices are similarly limited. Indeed, Thackera (1988b) suggests that the whole concept of design is expanding so rapidly that an entirely new term is needed to encompass the range of issues designers now confront. Our purpose in this chapter is to bring some of the implicit character of work and design into the daylight, as a first step towards making design for the workplace more valid. We explore thirteen topics that we believe are central to understanding design for the workplace. We suggest that conventional design approaches often mask powerful but unnoticed resources that, if tapped, can contribute significantly to successful design. For example, a focus on explicit instruction obscures many other ways in which designs actually rely on valuable implicit understanding. Similarly, a focus on individual users conceals the community of users that develops around successful work systems or processes and is crucial to their successful use. To examine the important collateral resources that conventional design overlooks, we pair such concepts as individual-social, narrow-broad, centerperiphery. This is not to establish rigid dichotomies and thus threaten to shift existing imbalances from one inadequate extreme to another, but to expand the region of the “thinkable” in relation to work and design practices. In an insightful discussion of the way such dichotomies may tighten a noose rather than release it, Bourdieu (1989) describes “paired oppositions” as little more than “colluding adversaries” that “tend to delimit the space of the thinkable by excluding the very intention to think beyond the divisions they institute”. But the elements of most of our pairs (though not all, for a few remained stubborn) are presented here as mutually constitutive components of good design.
Conference papers on the topic "Concealed Contributor"
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Şahin, Tarık, David Inkermann, and Thomas Vietor. "Towards Consistent Value Orientation in Release Planning." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-98185.
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Abstract Product development is experiencing a paradigm shift under the impact of highly segmented and rapidly evolving markets. The intention to offer successful products in such turbulent conditions forces companies to provide value comprehensively but rapidly. These attempts conceal a high risk of rising product complexities and development efforts. For this reason, the aim of design should be to maintain or improve value contribution according to customer and market demands with fast response time while reducing internal product disruption and development efforts. A proactive planning of continuous value contribution by introducing new product features, while considering the complexity of product structures and corresponding development efforts, is established in the field of release planning. Here, systematic ways are proposed to support the identification and timing of product features to provide value for customers and markets as well as the consideration and planning of according efforts for their realization. However, the literature highlights a need for more consistent value orientation in release planning. For this reason, this contribution aims to present an outline and further steps for consistent value orientation in release planning in the context of systems engineering. Accordingly, this contribution first discusses the significance of consistent value orientation during release planning activities. On this basis, requirements for consistent value orientation in release planning are presented and the respective current state of existing concepts are discussed. Ultimately, a framework towards consistent value orientation in release planning is presented with a concluding outlook for further research.
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Martínez Lorenzo, José Á., and Yuri Álvarez López. "Compressed Sensing Techniques for Ultrasonic Imaging of Cargo Containers." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66641.
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This contribution presents a compressed sensing (CS)-based ultrasonic imaging system for fast, low-cost inspection of metallic cargo containers. The idea is to detect the footprint of metallic objects within the container that can be used to conceal smuggling goods. This ultrasonic technology can complement currently deployed X-ray-based radiographic systems and millimeter-wave scanners, thus increasing the probability of detection. The proposed hardware consists of an array of acoustic transceivers that is attached to the metallic structure of the metallic cargo container to create a guided acoustic wave. Variations in the thickness of the metallic structure create reflections that can be located by backpropagating the measured reflected wave. Aiming to reduce the number of acoustic transceivers, this contribution evaluates the feasibility of applying CS techniques in the proposed acoustic imaging system. It has been observed that in the majority of the cases, the acoustic images retrieved by the cargo inspection system are sparse, that is, only those image pixels corresponding to discontinuities in the metallic plate (due to gaps, joints, placement of a metallic object on it) are different from zero. Thus, sparsity condition, which is one of the CS requirements, is satisfied for this particular application. A simulation-based example resembling a real case of cargo inspection is considered for validation purposes. A comparison between standard backpropagation and CS for different number of samples is presented, proving that CS is able to recover the acoustic image with as few as 10% of the samples required by Nyquist sampling rate.
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Cohen Zilka, Gila. "The Experience of Receiving and Giving Public Oral and Written Peer Feedback on the Teaching Experience of Preservice Teachers." In InSITE 2020: Informing Science + IT Education Conferences: Online. Informing Science Institute, 2020. http://dx.doi.org/10.28945/4502.
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Aim/Purpose: This study examined how peer feedback, received and given face-to-face and on the course site, shapes the teacher’s image, from the student’s point of view as the one providing and receiving feedback. Background: This study examined the effect of receiving and giving peer feedback, face-to-face and on the course site, on forming the teacher’s image, from the student’s point of view as someone who provides and receives feedback. Methodology: The research question was, “How do preservice teachers experience giving and receiving public, oral and written, peer feedback on the teaching experience?” This is a qualitative study. Two hundred fifty-seven preservice teachers educated in teacher training institutions in Israel participated in the study. Contribution: The study attempted to fill the missing pieces in the experience of providing and receiving peer feedback in the process of training for a teaching certificate. The topic of feedback has been extensively researched, but mostly from the point of view of experts providing feedback to the student, whereas this study examined peer feedback. In addition, many studies have examined the topic of feedback mainly from the point of view of the recipient. By contrast, in this study, all the students both gave and received feedback, and the topic was examined from the perspective of both the feedback recipient and the feedback provider. It was found that receiving feedback and providing feedback are affected by the same emotional and behavioral influences, at the visible, concealed, and hidden levels. Findings: It was found that in oral feedback given by students face-to-face they took into account the feelings of the recipient of the feedback, more so than when feedback was given in writing on the course site. It was found also that most students considered it easier to provide feedback in writing than orally, for two reasons: first, it allowed them to edit and focus their feedback, and second, because of the physical distance from the student to whom the feedback applied. About 45% noted that the feedback they provided to others reflected their own feelings and difficulties. It was found that both giving and receiving feedback was influenced by the same emotional and behavioral layers: visible, concealed, and hidden. Recommendations for Practitioners: When an expert gives feedback, the expert has more experience than the students and wants to share this experience with others. This is not the case with peer feedback, where everybody is in the process of training, and the feedback is not necessarily expert. Therefore, clarification and discussion of feedback are of great importance for the development of both feedback provider and recipient. Recommendation for Researchers: About 45% of preservice teachers noticed that the feedback they provided to others stemmed from their own internal issues, and therefore dialogic feedback stimulated a sense of learning, empowerment, and professional development. Dialogic feedback may clarify for both provider and recipient what their habits, needs, and difficulties are and advance them in their professional development. Impact on Society: People must ask themselves whether they are in a position of conducting a dialogue or in a position of resistance to what is happening in the lesson. A sense of resistance to what is happening in the lesson may cause one to feel attacked and in need of defending oneself, and therefore to criticize. It is difficult to establish fruitful and enriching dialogue in a state of resistance, and with the desire to defend oneself and go on attack. Future Research: Knowledge of virtual feedback needs to be deepened. Does the feedback stem from the desire to advance the student who taught the lesson? Does the feedback stem from anger? etc.