3,386 research outputs found

    Transparent support for partial rollback in software transactional memories

    Get PDF
    The Software Transactional Memory (STM) paradigm has gained momentum thanks to its ability to provide synchronization transparency in concurrent applications. With this paradigm, accesses to data structures that are shared among multiple threads are carried out within transactions, which are properly handled by the STM layer with no intervention by the application code. In this article we propose an enhancement of typical STM architectures which allows supporting partial rollback of active transactions, as opposed to the typical case where a rollback of a transaction entails squashing all the already-performed work. Our partial rollback scheme is still transparent to the application programmer and has been implemented for x86-64 architectures and for the ELF format, thus being largely usable on POSIX-compliant systems hosted on top of off-the-shelf architectures. We integrated it within the TinySTM open-source library and we present experimental results for the STAMP STM benchmark run on top of a 32-core HP ProLiant server. © 2013 Springer-Verlag

    Art as a laboratory – Guy Ben-Ary’s work

    Get PDF
    Szykowna Sylwia, Art as a laboratory – Guy Ben-Ary’s work. “Images” vol. XXV, no. 34. Poznań 2019. Adam Mickiewicz University Press. Pp. 115–124. ISSN 1731-450X. DOI 10.14746/i.2019.34.07. The present paper deals with the work of an Israeli artist, Guy Ben-Ary. His work is a prime example of artistic practice in the field of bio art. Bio art provokes critical thinking about the place and role of people in today’s world. The main purpose of the article is to describe changes in contemporary artistic practices within the framework of art as a laboratory, the aim of which is to study reality.  Szykowna Sylwia, Art as a laboratory – Guy Ben-Ary’s work. “Images” vol. XXV, no. 34. Poznań 2019. Adam Mickiewicz University Press. Pp. 115–124. ISSN 1731-450X. DOI 10.14746/i.2019.34.07. The present paper deals with the work of an Israeli artist, Guy Ben-Ary. His work is a prime example of artistic practice in the field of bio art. Bio art provokes critical thinking about the place and role of people in today’s world. The main purpose of the article is to describe changes in contemporary artistic practices within the framework of art as a laboratory, the aim of which is to study reality

    Teaching clinical reasoning and decision-making skills to nursing students: Design, development, and usability evaluation of a serious game

    Get PDF
    Background Serious games (SGs) are a type of simulation technology that may provide nursing students with the opportunity to practice their clinical reasoning and decision-making skills in a safe and authentic environment. Despite the growing number of SGs developed for healthcare professionals, few SGs are video based or address the domain of home health care. Aims This paper aims to describe the design, development, and usability evaluation of a video based SG for teaching clinical reasoning and decision-making skills to nursing students who care for patients with chronic obstructive pulmonary disease (COPD) in home healthcare settings. Methods A prototype SG was developed. A unified framework of usability called TURF (Task, User, Representation, and Function) and SG theory were employed to ensure a user-centered design. The educational content was based on the clinical decision-making model, Bloom’s taxonomy, and a Bachelor of Nursing curriculum. A purposeful sample of six participants evaluated the SG prototype in a usability laboratory. Cognitive walkthrough evaluations, a questionnaire, and individual interviews were used for the usability evaluation. The data were analyzed using qualitative deductive content analysis based on the TURF framework elements and related usability heuristics. Results The SG was perceived as being realistic, clinically relevant, and at an adequate level of complexity for the intended users. Usability issues regarding functionality and the user–computer interface design were identified. However, the SG was perceived as being easy to learn, and participants suggested that the SG could serve as a supplement to traditional training in laboratory and clinical settings. Conclusions Using video based scenarios with an authentic COPD patient and a home healthcare registered nurse as actors contributed to increased realism. Using different theoretical approaches in the SG design was considered an advantage of the design process. The SG was perceived as being useful, usable, and satisfying. The achievement of the desired functionality and the minimization of user–computer interface issues emphasize the importance of conducting a usability evaluation during the SG development process

    What to Expect: Medical Quality Outcomes and Achievements of a Multidisciplinary Inpatient Musculoskeletal System Rehabilitation

    Get PDF
    The incidence of chronic diseases is rising. Rehabilitation plays a vital role in preventing and minimizing the functional limitations associated with chronic conditions and aging. Routine outcome measures include disease-specific and unspecific general health parameters. This study evaluates indicators for medical quality outcomes from 10,373 patients (61.00 ± 13.65 years, 51.7% women) who have undergone orthopedic rehabilitation for three weeks. Inpatient rehabilitation reduces lifestyle-related risk factors, optimizes organ functioning and improves the well-being in the majority of patients (81.3%; SMD = 0.52 ± 0.38). Improvements of unspecific and indication specific outcome parameters can be observed in a comparable magnitude. However, disease specific and unspecific health factors are not directly related to each other (r = 0.19). Age, gender, ICD-classification and time of rehabilitation have an influence on initial values and on indication-specific medical outcomes but are insignificant with regards to improvements in unspecific medical outcome parameters. Inpatient rehabilitation includes two main pathways of medical practice, which can be clearly distinguished in terms of their therapeutic outcome. There are general health interventions, such as lifestyle modifications, diet and physical exercise, and symptom-specific treatments. So multidisciplinary medical rehabilitation improves general well-being and physical functioning as well as reduces risk factors in the majority of patients

    A Roadmap for Change: Federal Policy Recommendations for Addressing the Criminilization of LGBT People and People Living with HIV

    Get PDF
    Each year in the United States, thousands of lesbian, gay, bisexual, transgender, Two Spirit, queer, questioning and gender non-conforming (LGBT) people and people living with HIV come in contact with the criminal justice system and fall victim to similar miscarriages of justice.According to a recent national study, a startling 73% of all LGBT people and PLWH surveyed have had face-to-face contact with police during the past five years.1 Five percent of these respondents also report having spent time in jail or prison, a rate that is markedly higher than the nearly 3% of the U.S. adult population whoare under some form of correctional supervision (jail, prison, probation, or parole) at any point in time.In fact, LGBT people and PLWH, especially Native and LGBT people and PLWH of color, aresignificantly overrepresented in all aspects of the penal system, from policing, to adjudication,to incarceration. Yet their experiences are often overlooked, and little headway has been madein dismantling the cycles of criminalization that perpetuate poor life outcomes and push already vulnerable populations to the margins of society.The disproportionate rate of LGBT people and PLWH in the criminal system can best be understoodin the larger context of widespread and continuing discrimination in employment, education, socialservices, health care, and responses to violence

    Before-Commit Client State Management Services for AJAX Applications

    Get PDF
    Heavily script-based browser applications change the manner in which users interact with Web browsers. Instead of downloading a succession of HTML pages, users download a single application and use that application for a long period of time. The application is not a set of HTML pages, but rather a single page that can possible modify its own presentation based on data exchanged with a server. In such an environment, it is necessary to provide some means for the client to manage its own state. We describe the initial results of our work in providing client-side state management services for these script-based applications. We focus on browser-based services that can help the user before any data is committed on the server. Our services include state checkpointing, property binding, operation logging, operational replay, ATOM/RSS data updates, and application-controlled persistence

    Interactive Surgical Depiction for the Electronic Medical Record

    Get PDF
    Prior to the adoption of the electronic medical record (EMR), the written documentation of operations in patients’ paper charts were frequently supplemented by a sketch by the surgeon. is image enhanced the understanding of the operation, especially for complex or re-operative procedures. With the recent transition to comprehensive EMR systems, traditional paper charts are seldom used and less accessible to clinicians. Surgeons currently lack a means to include a drawing in the patient record to aid in the communication of post-operative anatomy. An accurate understanding of post-operative anatomy is critical to providing optimal care. Deprived of this knowledge, subsequent care providers expend considerable time and resources attempting to understand the patient’s current anatomy. is is particularly true when the patient falls under the care of a di erent doctor or team, or is transferred from another hospital. Ultimately, the patient’s safety is compromised, as they may be subjected to greater periods of time under anesthesia and unnecessary radiation dedicated solely to visualizing their altered anatomy. No tools are currently available that allow a meaningful depiction of post-operative anatomy to be included in the medical record. is thesis explores the design of a digital interactive tool to enable surgeons to quickly and accurately document the patient’s post- procedural anatomy in an image. is tool is unique in that it presents a pre-existing 3D model which the user may split, remove, move, and reconnect to represent changes to the patient’s GI tract. rough an intuitive interface, the surgeon will manipulate a 3D model of normal anatomy to accurately depict resections and reconnections of bowel at appropriate distances and con gurations and include elements such as drains, measurements, and annotations. e surgeon can then save the image with the post-operative note to follow the patient. As a part of the EMR, the image is available for viewing by practitioners responsible for post-operative care and subsequent diagnoses and procedures, contributing to overall patient safety. Over thirty user interviews provided feedback vital to the design of the user interface and features list during the development stage of this novel resource

    Cedarville Magazine, Spring 2022: Called to Excellence

    Get PDF
    https://digitalcommons.cedarville.edu/cedarvillemagazine/1025/thumbnail.jp

    A feature-based approach to the Computer-Aided Design of sculptured products

    Get PDF
    Computer-Aided Design systems offer considerable potential for improving design process efficiency. To reduce the 'ease of use' barrier hindering full realisation of this potential amongst general mechanical engineering industries, many commercial systems are adopting a Feature-Based Design (FBD) metaphor. Typically the user is allowed to define and manipulate the design model using interface elements that introduce and control parametric geometry clusters, with engineering meaning, representing specific product features (such as threaded holes, slots, pockets and bosses). Sculptured products, such as golf club heads, shoe lasts, crockery and sanitary ware, are poorly supported by current FBD systems and previous research, because their complex shapes cannot be accurately defined using the geometrically primitive feature sets implemented. Where sculptured surface regions are allowed for, the system interface, data model and functionality are little different from that already provided in many commercial surface modelling systems, and so offer very little improvement in ease of use, quality or efficiency. This thesis presents research to propose and develop an FBD methodology and system suitable for sculptured products. [Continues.
    corecore