511 research outputs found
Datasets for "Transient dynamics mask the resilience of coral reefs"
No full textDatasets to supplement the article "Transient dynamics mask the resilience of coral reefs" by Hock et al.
For code go to https://github.com/khock1/TransientDynamics
Author & copyright: Karlo Hock, University of Queensland. 2021For code go to: https://github.com/khock1/TransientDynamic
The construction of Karen Karnak: The multi-author-function
No full textThis thesis is situated within the comparatively recent developments of Web 2.0 and the emergence of interactive WikiMedia, and explores the mode of authorship within a Read/Write culture compared to that of a Read/Only tradition. The hypothesis of this study is that the role of the audience has become merged with the author, and as such, represents new functions and attributes, distinct from a more conventional concept of authorship, in which the roles of audience and author are more separate. Read/Write and participatory culture, as defined by this study, is focused on collaboration, and includes the influences of D.I.Y. culture, Open-Source practices and the production of text by multiple authors. Multi-authorship presents a re-thinking of several concepts which support the notion of the individual author, since the focus of multi-authorship is not on attribution and ownership of a finished text, but on the continued malleability of a text. Modes of multi-authorship, demonstrated in the use of the pseudonyms Alan Smithee and Karen Eliot, represent declarative authors whose names signify multiple origins, whilst concurrently indicating a distinct body of work. The function of these names form an important context to this study, since primary research involves the construction of an experimental mode of multi-authorship utilising WikiMedia technology and the interaction of thirty nine participants, who are invited to create a body of work under the collective pseudonym Karen Karnak. The data generated by this experiment is analysed using aspects of Michel Foucault's author-function to identify and determine power structures inherent in the WikiMedia context. The interplay of power structures, including concepts such as identity, ownership and the body of work, affect the resulting mode of authorship and contribute to the construction of Karen Karnak, suggesting further areas of research into the emerging multi-author
Dynamic, statedependent thresholds for the perception of single-element apparent motion: Bistability from local cooperativity. Perception and Psychophysics,
No full textPrevious studies have indicated that the formation of coherent patterns for multielement motion displays depends on global cooperative interactions among ensembles of spatially distributed motion detectors that enhance certain motion directions and suppress others. In this article, we report the results of experiments involving the perception of single-element apparent motion over small spatial displacements. When motion is not perceived, two stationary elements are perceived instead (the perception of nonmotion was sometimes, but not always, accompanied by the perception of flicker). The key finding is that the motion perceived for singleelement apparent motion is like the perception of global motion in that both are subject to cooperative influences. As in the case of global motion, the cooperativity observed for single-element motion can be attributed to facilitating and inhibiting interactions among an ensemble of directionally selective motion detectors It is implicit in classical psychophysical methods that perception near the 50% threshold is vague and uncertain. Much effort, therefore, has been concerned with developing analytic procedures to account for the guessing strategies (e.g., 1077 Copyright 1997 Psychonomic Society, Inc. We are grateful to Gregor Schöner, Kathleen Eastman, Martin Giese, and three anonymous reviewers for their careful reading of an earlier version of the manuscript and their valuable suggestions. Correspondence and requests for materials should be sent to H. Hock, Department of Psychology, Florida Atlantic University, Boca Raton, FL 33431 (e-mail: [email protected]). Dynamic, state-dependent thresholds for the perception of single-element apparent motion: Bistability from local cooperativity HOWARD S. HOCK, KRIS KOGAN, and JESSICA K. ESPINOZA Florida Atlantic University, Boca Raton, Florida Previous studies have indicated that the formation of coherent patterns for multielement motion displays depends on global cooperative interactions among large ensembles of spatially distributed motion detectors. These interactions enhance certain motion directions and suppress others. It is reported here that perceiving one element moving between two nearby locations likewise is subject to cooperative influences (possibly facilitating and inhibiting interactions within a local ensemble of overlapping detectors). Thresholds depending on luminance contrast were measured for a generalized singleelement apparent-motion stimulus, and evidence for spontaneous switching and hysteresis effects indicated that motion perception near the 50% threshold was bistable. That is, for conditions in which motion and nonmotion were perceived half the time, the two percepts were distinct; when one was perceived, it clearly was discriminable from the other. These results indicated that (1) single-element apparent-motion thresholds depended on the immediately preceding state of the ensemble of motion detectors responding to the stimulus, and (2) the stimulus activation of individual motion detectors always might be influenced by recurrent, cooperative interactions resulting from the detectors' being embedded within interconnected ensembles
Pelvic limb kinetic and kinematic analysis in Labrador Retrievers predisposed or at a low risk for cranial cruciate ligament disease
No full textObjective
To compare kinematics, net moments, powers, ground and joint reaction forces (GRF, JRF) across the hock, stifle and hip joints in Labrador Retrievers at low risk or predisposed to cranial cruciate ligament disease (CCLD).
Study Design
Cross-sectional clinical study.
Animals
Clinically normal Labradors predisposed (n = 11) or at low risk for CCLD (n = 9).
Methods
Right pelvic limbs were classified as predisposed or not to CCLD using a predictive score equation based on combining tibial plateau angle (TPA) and femoral anteversion angle (FAA) measured on radiographs. Kinematic, GRF, and morphometric data were combined in an inverse dynamics approach to compute hock, stifle and hip kinematics, net moments, powers, and JRF while trotting.
Results
The extensor moment of the hock joint was greater in predisposed limbs compared with nonpredisposed limbs (0.37 versus 0.28 Nm/kg). The power generated around the hock and stifle joints in predisposed limbs was increased (0.69 versus 0.44 W/kg for the hock, 1.59 versus 1.05 W/kg for the stifle). Trotting velocity, stance time, vertical and craniocaudal GRF and JRF did not differ between groups.
Conclusions
Extensor moment at the hock was increased in predisposed limbs compared with nonpredisposed limbs. Predisposed limbs generated more energy than nonpredisposed limbs around the hock and stifle joints
Home-Based Intervention for Chemotherapy-Induced Peripheral Neuropathy
No full textAbstract
Date Presented 3/31/2017
Peripheral neuropathy is a side effect of neurotoxic chemotherapy, resulting in pain and declines in function and quality of life. This pilot study assessed effects of a sensorimotor intervention on pain, function, and quality of life in individuals with breast cancer.
Primary Author and Speaker: Amy Darragh
Additional Authors and Speakers: Karli Vicary
Contributing Authors: Karen Hock, LeAnn Gaerke, Sharon Flinn</jats:p
Mental healthcare for asylum-seekers and refugees residing in the United Kingdom: a scoping review of policies, barriers, and enablers
No full textAbstract Background Since 2011, a large influx of asylum-seekers and refugees has put pressure on the UK’s under-resourced national health services and mental health services. Asylum-seekers and refugees (ASR) may experience traumatic events pre-departure, life-threating circumstances on their journeys, and difficulties integrating into host countries related to immigration policies, social isolation, poor living conditions, and unemployment, all of which can significantly affect their mental health. This topic is increasingly important due to the numbers of people seeking asylum and growing concern for their mental health on resettlement. This study examined UK-wide policies and guidance, healthcare practices, barriers, and enablers of mental healthcare for ASR residing in the UK. Methods We conducted a scoping review using Arksey and O’Malley’s 2005 framework, which included semi-structured interviews with stakeholders from non-governmental organisations, academia, UK National Health Service, and community groups. We synthesised and analysed literature and interview data thematically to examine current barriers and potential enablers of ASR mental health support in the UK. Results We included 39 literature sources, of 1,638 identified, and 10 stakeholder interviews. Sources, most published in 2019 (n = 13), included data from England (n = 13), Scotland (n = 3), Wales (n = 3), and Northern Ireland (n = 2) and covered access to care (n = 16), mental health disorders (n = 7), impacts on health (n = 7), barriers to care (n = 13), policies and plans (n = 4), and clinical recommendations (n = 3). Synthesised themes from literature and interviews included existing barriers (i.e. communication difficulties and lack of funding, resources, and political will) and potential enablers (i.e. proposed provision practices, social needs of ASR, and policy changes). Conclusions There is a gap in the literature regarding UK-wide assessment of access and delivery of mental healthcare for ASR in the UK. Time sensitive and culturally appropriate approaches are needed, with greater funding and resource support from the UK Government. This study provides justification for a call to relax hostile environment policies, and for ASR-specific mental health services and support to be considered within the UK. Further research is needed to assess implementation of guidelines across the UK
Perspectives on Rebuilding Health System Governance in Opposition-Controlled Syria: A Qualitative Study
No full text10.15171/ijhpm.2018.132INTERNATIONAL JOURNAL OF HEALTH POLICY AND MANAGEMENT84233-24
Anaesthesia delivery systems in low and lower-middle-income Asian countries: A scoping review of capacity and effectiveness.
No full textLiterature on anaesthesia systems in low and lower middle-income countries is limited, focused on the Africa region, and provides minimal data on anaesthesia or associated disciplines within intensive care, pain management and emergency medicine. We thus conducted a scoping review of primary and secondary research literature on capacity and effectiveness of anaesthesia delivery in low and lower middle-income countries in the Asia region from 2000-2021, to clarify existing knowledge, important gaps, and possible subsequent steps. We applied Arksey and O'Malley's scoping literature review method to search five databases (i.e. EMBASE, CINAHL, Medline, Scopus, Web of Science), screen, extract, and synthesise data under three themes: (i) availability and type of anaesthesia workforce; (ii) anaesthesia system infrastructure, equipment, and supplies; and (iii) effectiveness of anaesthesia provision. We included 25 eligible sources of 603 identified. Only ten (40%) were published in the last 5 years and Asian lower-income countries were primarily represented in 15 multi-country sources. Fifteen (60%) sources used quantitative methods and provided limited information on data collection, e.g. sampling criteria or geographic areas included. No sources included countrywide data, despite anaesthesia delivery and resources differing significantly sub-nationally (e.g. central versus rural/remote, or insecure areas). Data on anaesthesiology delivery were limited, with findings including insufficiencies in workforce, supplies, training, and skills-building of anaesthesia personnel, along with the lack of consistent strategies for overcoming maldistribution of resources and improving anaesthesia delivery systems in the region. This review, a first attempt to synthesise existing data on anaesthesia delivery systems in low and lower-middle-income Asian countries, shows the anaesthesia literature is still limited. Findings highlight the urgent need for additional research and collaboration nationally and regionally to strengthen anaesthesia delivery and surgical facilities in resource-constrained settings
Iliamna rivularis (Wild Holly hock) : Wild Holly hock
No full textClass: Dicotyledoneae
Family: Malvaceae
Genus: Iliamna
Species: rivulari
Gender-based violence (GBV) coordination in humanitarian and public health emergencies: a scoping review.
No full textBACKGROUND: Gender-based violence (GBV) is a global health, human rights, and protection issue, which can increase during emergencies. GBV coordination is an essential component of every humanitarian response, ensuring that, from the earliest phases of a crisis, accessible and safe services are available and prevention and mitigation mechanisms are implemented to reduce GBV. We sought to address the limited evidence on GBV coordination, by reviewing literature on GBV coordination in emergencies, identifying facilitators and barriers influencing effectiveness. METHODS: We conducted a scoping review on GBV coordination in emergencies from 1990 to 2020. Studies explicitly discussing GBV coordination in humanitarian, natural disaster and public health emergencies, in low or middle-income countries, were included. Using thematic analysis, we developed a six-topic framework to synthesise evidence on effective GBV coordination and present recommendations for strengthening GBV coordination in emergencies. FINDINGS: We included 28 of 964 sources identified, covering 30 different emergency settings across 22 countries. Sources spanned emergency settings, with minimal evidence in public health emergencies and none focussed solely on GBV coordination. Several sources suggested that timely establishment of GBV coordination mechanisms, led by dedicated, experienced coordinators, increased funding and strengthened service provision. GBV risk mitigation was compromised by weak commitment across sectors, poor accountability systems, and limited engagement of affected women. Inclusive GBV coordination, involving national and local actors is vital but engagement efforts have been inadequate and localisation funding targets not yet achieved. Implementation of the GBV Information Management System has reinforced coordination, funding allocation and service provision. While specialist GBV services remain insufficient, emergencies can present opportunities for expansion. Sustainability and long-term impact are compromised by over-reliance on international leadership and funding, weak commitment by governments, and limited attention to GBV prevention. CONCLUSION: Despite enhanced global commitments to addressing GBV in recent years, it remains consistently under-prioritised and under-resourced. Recommendations to strengthen GBV coordination in emergencies include: funding dedicated GBV coordination positions across all types of emergencies, building the global GBV coordination workforce, expanding inclusion of national actors and investing in GBV risk mitigation and prevention through multiyear funding. The evidence-based framework for effective GBV coordination presented here, can guide further research in diverse emergencies
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