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137 result(s) for "Data hoarding"
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The Bermuda Triangle: The Pragmatics, Policies, and Principles for Data Sharing in the History of the Human Genome Project
The Bermuda Principles for DNA sequence data sharing are an enduring legacy of the Human Genome Project (HGP). They were adopted by the HGP at a strategy meeting in Bermuda in February of 1996 and implemented in formal policies by early 1998, mandating daily release of HGP-funded DNA sequences into the public domain. The idea of daily sharing, we argue, emanated directly from strategies for large, goal-directed molecular biology projects first tested within the \"community\" of C. elegans researchers, and were introduced and defended for the HGP by the nematode biologists John Sulston and Robert Waterston. In the C. elegans community, and subsequently in the HGP, daily sharing served the pragmatic goals of quality control and project coordination. Yet in the HGP human genome, we also argue, the Bermuda Principles addressed concerns about gene patents impeding scientific advancement, and were aspirational and flexible in implementation and justification. They endured as an archetype for how rapid data sharing could be realized and rationalized, and permitted adaptation to the needs of various scientific communities. Yet in addition to the support of Sulston and Waterston, their adoption also depended on the clout of administrators at the US National Institutes of Health (NIH) and the UK nonprofit charity the Wellcome Trust, which together funded 90% of the HGP human sequencing effort. The other nations wishing to remain in the HGP consortium had to accommodate to the Bermuda Principles, requiring exceptions from incompatible existing or pending data access policies for publicly funded research in Germany, Japan, and France. We begin this story in 1963, with the biologist Sydney Brenner's proposal for a nematode research program at the Laboratory of Molecular Biology (LMB) at the University of Cambridge. We continue through 2003, with the completion of the HGP human reference genome, and conclude with observations about policy and the historiography of molecular biology.
Mobile Network Adaptation in the Ubidata Mobile File System
An important characteristic of mobile networks is the large variations of available bandwidth. Network conditions can vary from strong to weak to total disconnection. These variations may be masked from the users by a common technique called \"data hoarding\". Limited mobile network bandwidth is an expensive resource today and in the foreseeable future. Efficiently utilizing scarce mobile bandwidth is a challenge for managing data in the mobile environment. In this paper, we introduced the network adaptation approaches used in the UbiData mobile file system. UbiData mobile file system is designed to automatically select a mobile user's active data set and automatically migrate that data when the user switches from device to device. Automation of data management, including data set selection, data replication, network adaptation, and data reintegration, is a goal in our system to tackle the problems incurred from data unavailability in weak and disconnection modes. We discuss the adaptation techniques in our UbiData system and present enhancements. To further reduce the network bandwidth requirement, two major approaches are introduced in our system. First, the communication requests are shortly delayed and optimized. Secondly, we employ content aware/transparent adaptation to reduce possible data transmission within acceptable weak connection bandwidth. The mobile network adaptation techniques can significantly reduce the potential communications between the mobile devices and the fixed host.
“In an ideal world that would be a multiagency service because you need everybody’s expertise.” Managing hoarding disorder: A qualitative investigation of existing procedures and practices
Hoarding disorder is characterised by the acquisition of, and failure to discard large numbers of items regardless of their actual value, a perceived need to save the items and distress associated with discarding them, significant clutter in living spaces that render the activities associated with those spaces very difficult causing significant distress or impairment in functioning. To aid development of an intervention for hoarding disorder we aimed to identify current practice by investigating key stakeholders existing practice regarding identification, assessment and intervention associated with people with hoarding disorder. Two focus groups with a purposive sample of 17 (eight male, nine female) stakeholders representing a range of services from housing, health, and social care were audio recorded, transcribed verbatim and analysed thematically. There was a lack of consensus regarding how hoarding disorder was understood and of the number of cases of hoarding disorder however all stakeholders agreed hoarding disorder appeared to be increasing. The clutter image rating scale was most used to identify people who needed help for hoarding disorder, in addition to other assessments relevant to the stakeholder. People with hoarding disorder were commonly identified in social housing where regular access to property was required. Stakeholders reported that symptoms of hoarding disorder were often tackled by enforced cleaning, eviction, or other legal action however these approaches were extremely traumatic for the person with hoarding disorder and failed to address the root cause of the disorder. While stakeholders reported there was no established services or treatment pathways specifically for people with hoarding disorder, stakeholders were unanimous in their support for a multi-agency approach. The absence of an established multiagency service that would offer an appropriate and effective pathway when working with a hoarding disorder presentation led stakeholders to work together to suggest a psychology led multiagency model for people who present with hoarding disorder. There is currently a need to examine the acceptability of such a model.
Knowledge hoarding: antecedent or consequent of negative acts? The mediating role of trust and justice
Purpose The purpose of this paper is to investigate whether and how knowledge hoarding, functions as antecedent and consequent of work related negative acts, as a measure of bullying. The authors investigate the relation as mediated by trust and justice. Design/methodology/approach Data stem from a longitudinal study in which questionnaire responses were collected twice from 1,650 employees in 52 workplaces. Structural equation modelling was used to analyse the two models. Design-based corrections were made to accommodate the multi-level structure of data. Findings The analyses showed that knowledge hoarding was both an antecedent and a consequent of negative acts. First, over time, knowledge hoarding was indirectly related to negative acts mediated by trust and justice. Second, negative acts were both directly and indirectly related to knowledge hoarding over time. The study thus points to the existence of a vicious circle of negative acts, psychological states of trust and justice, and knowledge hoarding behaviours, which presumably will affect both individual and organizational outcomes negatively. Research limitations/implications The use of already collected, self-report data, single-item measures, and the two-year time lag could pose potential limitations to the study. Practical implications Preventive and repair actions could potentially impact both negative acts and knowledge hoarding by focusing on increasing the social exchange quality at work unit level. Originality/value This paper combines two strands of research, that of bullying at work and that of knowledge management, within which research on knowledge hoarding has been an under-researched area.
Suicidal thoughts and behaviors in adults with hoarding disorder
Hoarding disorder (HD) is characterized by difficulty discarding possessions and clutter that impairs daily functioning. Previous research has demonstrated a high correlation between hoarding behaviors and suicidal thoughts and behaviors; however, there is limited research on suicidal thoughts and behaviors in individuals meeting Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria for HD. Our aim in this study was to report our findings about suicidal thoughts and behaviors in a HD sample. We used existing data from participants meeting DSM-5 criteria for HD (n = 99). Data about suicidal thoughts and behaviors was collected using a structured instrument, the Columbia-Suicide Severity Rating Scale (C-SSRS). Among the 99 participants, 49.5 % and 26.3 % had passive and active suicidal ideation (SI), respectively. Of those with active ideation, 11 participants endorsed thinking about overdose during their most severe SI. 13 participants reported attempting suicide at least once in their lifetime. To our knowledge, this is the first study examining suicidal thoughts and behaviors in HD using the structured assessment C-SSRS. In this HD data set, participants reported suicidal thoughts and behaviors at higher rates than the general U.S. population. Our study highlights the importance of screening for suicidal thoughts and behaviors in individuals with HD.
Beyond storage: a TCV-SECI framework for digital photo hoarding and knowledge transformation
Purpose Why people keep digital content – especially digital photos – is a question that interests academics and industry professionals. This study aims to deepen the authors’ understanding of the consumption values – particularly concerning digital photos – that motivate people to hoard digital content and help them create knowledge. Design/methodology/approach Using the Gioia approach, this study adopted a qualitative research strategy to examine the themes that emerged from the participant replies. Grounded theory methodology was used to place this research within the context of users’ genuine experiences. Findings The themes arising from the participants’ opinions aligned with the theory of consumption values, which assisted in identifying the consumption values that promote digital photo hoarding, leading to knowledge creation, sharing and transformation rooted in knowledge creation theory (socialization, externalization, combination and internalization). Originality/value Unlike prior studies that focus on digital clutter as a problem, this research repositions it as a potential enabler of structured knowledge generation. Through this study, the digital world’s stakeholders gain a deeper understanding of the various consumption values that influence people’s behavior of digital hoarding, especially with knowledge creation as the outcome. This understanding helps organizations create strategies to understand their customers better and, as a result, helps them strategize updating their websites and displays. In addition, it can promote education on responsible digital hoarding practices.
Epidemiology of hoarding disorder
Hoarding disorder is typified by persistent difficulties discarding possessions, resulting in significant clutter that obstructs the individual's living environment and produces considerable functional impairment. The prevalence of hoarding disorder, as defined in DSM-5, is currently unknown. To provide a prevalence estimate specific to DSM-5 hoarding disorder and to delineate the demographic, behavioural and health features that characterise individuals with the disorder. We conducted a two-wave epidemiological study of 1698 adult individuals, originally recruited via the South East London Community Health (SELCoH) study. Participants screening positively for hoarding difficulties in wave 1, and who agreed to be re-contacted for wave 2 (n = 99), underwent in-home psychiatric interviews and completed a battery of self-report questionnaires. Current DSM-5 diagnoses were made via consensus diagnostic procedure. In total, 19 individuals met DSM-5 criteria for hoarding disorder at the time of interview, corresponding to a weighted prevalence of 1.5% (95% CI 0.7-2.2). Those with hoarding disorder were older and more often unmarried (67%). Members of this group were also more likely to be impaired by a current physical health condition (52.6%) or comorbid mental disorder (58%), and to claim benefits as a result of these issues (47.4%). Individuals with hoarding disorder were also more likely to report lifetime use of mental health services, although access in the past year was less frequent. With a lower-bound prevalence of approximately 1.5%, hoarding disorder presents as a condition that affects people of both genders and is associated with substantial adversity.
The London field trial for hoarding disorder
A new diagnostic category, hoarding disorder (HD), has been proposed for inclusion in DSM-5. This study field-tested the validity, reliability and perceived acceptability of the proposed diagnostic criteria for HD. Method Fifty unselected individuals with prominent hoarding behavior and 20 unselected, self-defined 'collectors' participated in thorough psychiatric assessments, involving home visits whenever possible. A semi-structured interview based on the proposed diagnostic criteria for HD was administered and scored by two independent raters. 'True' diagnoses were made by consensus according to the best-estimate diagnosis procedure. The percentage of true positive HD cases (sensitivity) and true negative HD cases (specificity) was calculated, along with inter-rater reliability for the diagnosis and each criterion. Participants were asked about their perceptions of the acceptability, utility and stigma associated with the new diagnosis. Twenty-nine (58%) of the hoarding individuals and none of the collectors fulfilled diagnostic criteria for HD. The sensitivity, specificity and inter-rater reliability of the diagnosis, and of each individual criterion and the specifiers, were excellent. Most participants with HD (96%) felt that creating a new disorder would be very or somewhat acceptable, useful (96%) and not too stigmatizing (59%). The proposed HD criteria are valid, reliable and perceived as acceptable and useful by the sufferers. Crucially, they seem to be sufficiently conservative and unlikely to overpathologize normative behavior. Minor changes in the wording of the criteria are suggested.
Structure and clinical correlates of obsessive–compulsive symptoms in a large sample of children and adolescents: a factor analytic study across five nations
The underlying structure of obsessive–compulsive disorder (OCD) remains to be confirmed in child and adolescent populations. In this paper we report the first factor analytic study of individual OCD items from Children’s Yale-Brown Obsessive Compulsive Scale (CY-BOCS). OCD symptoms were assessed using the CY-BOCS symptom checklist in a sample of 854 patients with OCD (7–18 years of age) recruited from clinics in five countries. Pooled data were subjected to exploratory and confirmatory factor analysis (CFA) to identify the optimal factor structure. Various models were tested for age and gender subgroups. Also, the invariance of the solution across age and gender was tested and associations with demographic and clinical factors were explored. A three-factor model provided the best-fit solution. It consisted of the following factors: (1) harm/sexual, (2) symmetry/hoarding, (3) contamination/cleaning. The factor structure was invariant for age and gender across subgroups. Factor one was significantly correlated with anxiety, and factor two with depression and anxiety. Factor three was negatively correlated with tic disorder and attention-deficit/hyperactivity disorder (ADHD). Females had higher scores on factor two than males. The OCD symptom structure in children and adolescents is consistent across age and gender and similar to results from recent child and adolescents although hoarding may not be a separate factor. Our three-factor structure is almost identical to that seen in early studies on adults. Common mental disorders had specific patterns of associations with the different factors.