LLukas22/scidocs huggingface dataset:
Asset ownership and implicit contracts

In a setting with two managers/owners who both make relationand asset-specific investments, I suggest a model where a linear implicit contract can strengthen the incentives to invest, if the parties are sufficiently patient. Otherwise, only asset ownership can be used to influence the incentives. First, I analyse the case where the implicit contract may include a fixed transfer, which then must be paid by the manager with the weakest bargaining position. I argue that this arrangement is not observed in business relations, due to risk aversion, bounded rationality and social norms. Therefore I focus on implicit contracts without fixed transfers in the rest of the paper. The same ownership structure is then optimal under both spot governance and implicit contracting, unless an ownership structure with more symmetrical bargaining positions can support a better implicit contract. In fact, a first-best implicit contract is self-enforcing only when the two managers enjoy similar bargaining positions, even if they are infinitely patient. Choosing between technologies, strong interdependencies can be good, since the future losses associated with an implicit contract violation then are large. * I thank Terje Lensberg, Frøystein Gjesdal, Trond Olsen, John Roberts and Steve Tadelis for insightful comments on earlier drafts of this paper. A first version of the paper was completed during my stay at Scancor, Stanford University 1997-98. I would also like to thank Jim March for his support during that period.
Virtual reality exposure therapy for the treatment of posttraumatic stress disorder following September 11, 2001.

OBJECTIVE
This preliminary study endeavored to evaluate the use of virtual reality (VR) enhanced exposure therapy for the treatment of posttraumatic stress disorder (PTSD) consequent to the World Trade Center attacks of September 11, 2001.


METHOD
Participants were assigned to a VR treatment (N = 13) or a waitlist control (N = 8) group and were mostly middle-aged, male disaster workers. All participants were diagnosed with PTSD according to DSM-IV-TR criteria using the Clinician-Administered PTSD Scale (CAPS). The study was conducted between February 2002 and August 2005 in offices located in outpatient buildings of a hospital campus.


RESULTS
Analysis of variance showed a significant interaction of time by group (p < .01) on CAPS scores, with a between-groups posttreatment effect size of 1.54. The VR group showed a significant decline in CAPS scores compared with the waitlist group (p < .01).


CONCLUSIONS
Our preliminary data suggest that VR is an effective treatment tool for enhancing exposure therapy for both civilians and disaster workers with PTSD and may be especially useful for those patients who cannot engage in imaginal exposure therapy.
HOW RFID TECHNOLOGY BOOSTS WALMART ’ S SUPPLY CHAIN MANAGEMENT

Purpose – The role of RFID technologies in supply chain management have gained significant interest in researchers and academics in recent years. Yet, very few studies conductedonhow this technologycould boost supply chains. So this study was to scrutinize how RFID technology boosts Wal-Mart’s supply chain management. Design/methodology/approach – Exploratory research approachwas adopted to obtain an indepth understanding of RFID technology andsupply chain through related journals and literatures.Then the research was conducted in the form of case studies on RFID technology and Wal-Mart’s supply chain management practices. In general, the research is more descriptive and interpretive in nature. Findings –WalMart succeeded in adopting the RFID technology, reduced out-of-stocks and the bullwhip effect, reduction in manual orders resulting in a reduction of excess inventory, improved service levels and reduced administration costs. Originality/value – The paper is original that provides empirical supportto RFID and SCM implementation, and creates value for retail stores on managing inventory. Keyword: RFID, SCM, Bullwhip Effect, VMI, CPFR
Loss of functional ELOVL4 depletes very long-chain fatty acids (≥C28) and the unique ω-O-acylceramides in skin leading to neonatal death

Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA, Department of Dermatology, School of Medicine, University of California, San Francisco, and Veterans Administration Medical Center, San Francisco, CA 94121, USA, Laboratory of Membrane Biochemistry and Biophysics, NIAAA, National Institutes of Health, Bethesda, MD 20892, USA, National Institute of Nutrition, Hyderabad, India, Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA, Applied Biosystems, Framingham, MA 01701, USA, Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA and Department of Pharmaceutical Chemistry, School of Pharmacy, University of California, San Francisco, CA 94143, USA
Time to prerandomization monthly seizure count in perampanel trials: A novel epilepsy endpoint.

OBJECTIVE
To determine whether a novel endpoint of time to prerandomization monthly seizure count could be used to differentiate efficacious and nonefficacious therapies in clinical trials of new add-on antiepileptic drugs (AEDs).


METHODS
This analysis used data from 3 randomized, double-blind, placebo-controlled phase III trials of perampanel as an add-on therapy in patients with epilepsy who were experiencing refractory partial seizures: studies 304 (ClinicalTrials.gov identifier NCT00699972), 305 (NCT00699582), and 306 (NCT00700310). Time to prerandomization monthly seizure count was evaluated post hoc for each trial, and findings were compared with the original primary outcomes (median percent change in seizure frequency and 50% responder rate). Outcomes were assessed for all partial-onset seizures, secondarily generalized (SG) tonic-clonic seizures only, and complex partial plus SG (CP + SG) seizures.


RESULTS
Perampanel 4-12 mg significantly prolonged median time to prerandomization monthly seizure count, generally by more than 1 week, compared with placebo, across all 3 studies, consistent with the original primary outcomes. Analysis of SG seizures only, and CP + SG seizures, also indicated a significantly prolonged median time to prerandomization monthly seizure count with perampanel 8 mg and 12 mg compared with placebo.


CONCLUSIONS
Time to prerandomization monthly seizure count is a promising novel alternative to the standard endpoints of median percent change in seizure frequency and 50% responder rates used in trials of add-on AEDs. Use of this endpoint could reduce exposure to placebo or ineffective treatments, thereby facilitating trial recruitment and improving safety.
Intimate partner violence and mental health in Bolivia

BACKGROUND
Latin America has among the highest rates of intimate partner violence. While there is increasing evidence that intimate partner violence is associated with mental health problems, there is little such research for developing countries. The purpose of this paper is to examine the relationship between Bolivian women's experiences with physical, psychological, and sexual intimate partner violence and mental health outcomes.


METHODS
This study analyzes data from the 2008 Bolivia Demographic and Health Survey. 10,119 married or cohabiting women ages 15-49 are included in the analysis. Probit regression models are used to assess the association between intimate partner violence and mental health, after controlling for other demographic factors and partner characteristics. The questionnaire uses selected questions from the SRQ-20 to measure symptoms of mental health problems.


RESULTS
Intimate partner violence is common in Bolivia, with 47% of women experiencing some type of spousal abuse in the 12 months before the survey. Women exposed to physical spousal violence in the past year are more likely to experience symptoms of depression, anxiety, psychogenic non-epileptic seizures, and psychotic disorders, after controlling for other demographic and partner characteristics. Women who experienced sexual abuse by a partner are most likely to suffer from all mental health issues. Psychological abuse is also associated with an increased risk of experiencing symptoms of depression, anxiety, and psychogenic seizures. Women who experienced only psychological abuse report mental health problems similar to those who were physically abused.


CONCLUSION
This study demonstrates an urgent need for research on the prevalence and health consequences of psychological abuse in developing countries. Our findings highlight the need for mental health services for victims of intimate partner violence. Because physical and psychological violence are often experienced concurrently, it is recommended that health providers who are treating victims of physical intimate partner violence also screen them for symptoms of potential mental health problems and refer them to appropriate mental health services.
As real as real? Macroeconomic behavior in a large-scale virtual world

This article proposes an empirical test of whether aggregate economic behavior maps from the real to the virtual. Transaction data from a large commercial virtual world – the first such data set provided to outside researchers – is used to calculate metrics for production, consumption and money supply based on real-world definitions. Movements in these metrics over time were examined for consistency with common theories of macroeconomic change. The results indicated that virtual economic behavior follows real-world patterns. Moreover, a natural experiment occurred, in that a new version of the virtual world with the same rules came online during the study. The new world’s macroeconomic aggregates quickly grew to be nearly exact replicas of those of the existing worlds, new media & society Copyright © 2009 SAGE Publications Los Angeles, London, New Delhi, Singapore and Washington DC Vol 11(5): 685–707 [DOI: 10.1177/1461444809105346]
Being Negative but Constructively: Lessons Learnt from Creating Better Visual Question Answering Datasets

Visual question answering (Visual QA) has attracted a lot of attention lately, seen essentially as a form of (visual) Turing test that artificial intelligence should strive to achieve. In this paper, we study a crucial component of this task: how can we design good datasets for the task? We focus on the design of multiplechoice based datasets where the learner has to select the right answer from a set of candidate ones including the target (i.e. the correct one) and the decoys (i.e. the incorrect ones). Through careful analysis of the results attained by state-of-the-art learning models and human annotators on existing datasets, we show that the design of the decoy answers has a significant impact on how and what the learning models learn from the datasets. In particular, the resulting learner can ignore the visual information, the question, or both while still doing well on the task. Inspired by this, we propose automatic procedures to remedy such design deficiencies. We apply the procedures to re-construct decoy answers for two popular Visual QA datasets as well as to create a new Visual QA dataset from the Visual Genome project, resulting in the largest dataset for this task. Extensive empirical studies show that the design deficiencies have been alleviated in the remedied datasets and the performance on them is likely a more faithful indicator of the difference among learning models. The datasets are released and publicly available via http://www.teds. usc.edu/website_vqa/.
Effect of Intensive Lifestyle Intervention on Sexual Dysfunction in Women With Type 2 Diabetes

OBJECTIVE
Sexual dysfunction is a prevalent problem in obese women with type 2 diabetes. This study examined the effects of intensive lifestyle intervention (ILI) in these women.


RESEARCH DESIGN AND METHODS
Look AHEAD is a 16-center, randomized, controlled trial evaluating the health effects of ILI compared with a control group (diabetes support and education [DSE]). The Look AHEAD Sexual Function Ancillary study included 375 female participants at five Look AHEAD sites. Participants completed the Female Sexual Function Inventory (FSFI) and Beck Depression Inventory (BDI), and assessments of weight and cardiovascular risk factors at baseline and 1 year were made.


RESULTS
At baseline, 50% of the 229 participants who reported being sexually active met criteria for female sexual dysfunction (FSD); only BDI score was related to FSD. One-year weight losses were greater in the ILI group than in the DSE group (7.6 vs. 0.45 kg; P<0.001). Among women with FSD at baseline, those in the ILI group (N=60) compared with those in the DSE group (N=53) were significantly more likely to remain sexually active (83 vs. 64%; P<0.008), reported greater improvement in total FSFI scores and in most FSFI domains (P<0.05), and were more likely to experience remission of FSD (28 vs. 11%; P<0.04) at 1 year. No significant differences between ILI and DSE were seen in women who did not have FSD at baseline.


CONCLUSIONS
Participation in ILI appeared to have beneficial effects on sexual functioning among obese women with diabetes, particularly in those who had FSD at baseline.
Adipose derived mesenchymal stem cells transplantation via portal vein improves microcirculation and ameliorates liver fibrosis induced by CCl4 in rats

Adipose derived mesenchymal stem cells (ADMSCs), carrying the similar characteristics to bone marrow mesenchymal stem cells, only much more abundant and easier to obtain, may be a promising treatment for liver fibrosis. We aim to investigate the therapeutic potential of ADMSCs transplantation in liver fibrosis caused by carbon tetrachloride (CCl4) in rats as well as its underlying mechanism, and to further explore the appropriate infusion pathway. ADMSCs were isolated, cultured and identified. Placebo and ADMSCs were transplanted via portal vein and tail vein respectively into carbon tetrachloride (CCl4)-induced liver fibrosis rats. Computed tomography (CT) perfusion scan and microvessel counts were performed to measure the alteration of liver microcirculation after therapy. Liver function tests and histological findings were estimated. CT perfusion scan shown significant decrease of hepatic arterial perfusion index, significant increased portal vein perfusion, total liver perfusion in rats receiving ADMSCs from portal vein, and Factor VIII (FVIII) immunohistochemical staining shown significant decrease of microvessels in rats receiving ADMSCs from portal vein, indicating microcirculation improvement in portal vein group. Vascular endothelial growth Factor (VEGF) was significantly up-regulated in fibrosis models, and decreased after ADMSCs intraportal transplantation. A significant improvement of liver functional test and histological findings in portal vein group were observed. No significance was found in rats receiving ADMSCs from tail vein. ADMSCs have a therapeutic effect against CCl4-mediated liver fibrosis. ADMSCs may benefit the fibrotic liver through alteration of microcirculation, evidenced by CT perfusion scan and down-regulation of VEGF. Intraportal transplantation is a better pathway than tail vein transplantation.
Motivation of medical students: selection by motivation or motivation by selection

BACKGROUND
Medical schools try to implement selection procedures that will allow them to select the most motivated students for their programs. Though there is a general feeling that selection stimulates student motivation, conclusive evidence for this is lacking. The current study aims to use the perspective of Self-determination Theory (SDT) of motivation as a lens to examine how medical students' motivation differs in relation to different selection procedures. The hypotheses were that 1) selected students report higher strength and autonomous motivation than non-selected students, and 2) recently selected students report higher strength and autonomous motivation than non-selected students and students who were selected longer ago.


METHODS
First- (Y1) and fourth-year (Y4) medical students in the six-year regular programme and first-year students in the four-year graduate entry programme (GE) completed questionnaires measuring motivation strength and type (autonomous-AM, controlled-CM). Scores were compared between students admitted based on selection, lottery or top pre-university GPA (top GPA) using ANCOVAs. Selected students' answers on open-ended questions were analysed using inductive thematic analysis to identify reasons for changes in motivation.


RESULTS
The response rate was 61.4 % (n = 357). Selected students (Y1, Y4 and GE) reported a significantly higher strength of motivation than non-selected students (Y1 and Y4 lottery and top GPA) (p < 0.01). Recently selected students (Y1 and GE) reported significantly higher strength (p < 0.01) and higher AM (p < 0.01) and CM (p < 0.05) than non-selected students (lottery and top GPA) and Y4 students who were selected three years ago. Students described that being selected enhanced their motivation as they felt autonomous, competent and that they belonged to a special group. These reported reasons are in alignment with the basic psychological needs described by Self-Determination Theory as important in enhancing autonomous motivation.


CONCLUSIONS
A comprehensive selection procedure, compared to less demanding admission procedures, does not seem to yield a student population which stands out in terms of autonomous motivation. The current findings indicate that selection might temporarily enhance students' motivation. The mechanism through which this occurs seems to be through feelings of autonomy, competence and relatedness inspired by selection.
Assessing the public health impacts of legalizing recreational cannabis use in the USA.

A major challenge in assessing the public health impact of legalizing cannabis use in Colorado and Washington State is the absence of any experience with legal cannabis markets. The Netherlands created a de facto legalized cannabis market for recreational use, but policy analysts disagree about how it has affected rates of cannabis use. Some US states have created de facto legal supply of cannabis for medical use. So far this policy does not appear to have increased cannabis use or cannabis-related harm. Given experience with more liberal alcohol policies, the legalization of recreational cannabis use is likely to increase use among current users. It is also likely that legalization will increase the number of new users among young adults but it remains uncertain how many may be recruited, within what time frame, among which groups within the population, and how many of these new users will become regular users.
Shared care by paediatric oncologists and family doctors for long-term follow-up of adult childhood cancer survivors: a pilot study.

BACKGROUND
Since 75% of children with cancer will become long-term survivors, late effects of treatment are an ever increasing issue for patients. Paediatric oncologists generally agree that cancer survivors should be followed up for the remainder of their lives, but they might not be the most suitable health-care providers to follow up survivors into late adulthood. We designed a 3-year study to assess whether shared-care by paediatric oncologists and family doctors in the long-term follow-up of survivors of childhood cancers is feasible, whether a shared-care model is compatible with collection of data needed for registration of late effects, and how a shared-care model is assessed by survivors and family doctors.


METHODS
In 2004 and 2005, adult survivors of childhood cancers were randomly chosen from eligible patients diagnosed with childhood cancer (excluding CNS tumours) or Langerhans-cell histiocytosis between January, 1968, and December, 1997, and recalled to the long-term follow-up (LTFU) clinic at the University Medical Centre Groningen, Groningen, Netherlands, where they underwent physical and clinical assessments by an on-site family doctor (visit 1). At this visit, assessments were done according to guidelines of the UK Children's Cancer Study Group Late Effects Group, and late effects were graded by use of Common Terminology Criteria for Adverse Events (version 3). Follow-up assessments were done 1 year later in 2005 and 2006 by local family doctors (visit 2), who were asked to return data to the LTFU clinic. At this visit, the local family doctors were asked to complete a three-item questionnaire and patients were asked to complete a seven-item questionnaire about their satisfaction with the shared-care model. At the next consultation, which was planned for the end of the study (visit 3), the on-site family doctor advised patients about future follow-up on the basis of their individual risk of late effects. Main endpoints were numbers of participants, satisfaction ratings, and proportions of local family doctors who returned data that they obtained at visit 2 to the LTFU clinic.


FINDINGS
133 individuals were chosen at random from 210 enrolled adult survivors. 123 of 133 (92%) randomly selected survivors and 115 of 117 (98%) of their family doctors agreed to participate in the share-care programme. 103 of 115 (90%) family doctors returned data to the LTFU clinic at visit 2. 89 of 101 (88%) of survivors were satisfied with this shared-care model, as were 94 of 115 (82%) family doctors; 18 of 115 (16%) family doctors had no views either way; and three of 115 (3%) family doctors were dissatisfied.


INTERPRETATION
Shared-care by paediatric oncologists and family doctors is feasible for long-term follow-up of adult survivors of childhood cancers.
The Blog-Mediated Crisis Communication Model: Recommendations for Responding to Influential External Blogs

Practitioners and academics are buzzing about the impact of the blogosphere on public relations practices. Emerging evidence indicates that strategically managing blog-mediated public relations may be especially critical for crisis managers. Yet, no known research provides a comprehensive, theoretically sound approach indicating how crisis managers should engage with the blogosphere. Therefore, this study proposes a new conceptual model to help public relations professionals navigate the evolving blogosphere: the blogmediated crisis communication model. This model helps crisis managers monitor the blogosphere and respond, when appropriate, to influential bloggers. Future research will test the model in applied contexts, working with corporate, government, and nonprofit organizations.