55 research outputs found
Preliminary investigations into human fall verification in static images using the NAO humanoid robot
No full textGlobalising Australian Capitalism by Bob Catley
No full textTo guide us through all of our past mistakes and to be introduced to the new ideas, we cannot do better than to consult this book for the author knows his topic and explains everything concisely and with conviction. It is an excellent example of its type. Economic history, however, inclines us to temper enthusiasm with skepticism
Animal Health Policy and Practice: Scaling-up Community-based Animal Health Systems, Lessons from Human Health
No full textIn an extensive literature review, the author develops policy recommendations to facilitate scaling up community-based animal health systems to the national level. Noting that human and animal health services in rural areas have much in common, and that an extensive literature studies policy regarding primary healthcare for humans exists, she surveys that literature for observations and conclusions applicable to policy analysis of primary animal healthcare. She notes differences in the history and development of the two delivery systems. The push for human health services came with a worldwide initiative agreed at a high level in 1978. Health for All was set out as a moral imperative, and programmes have been strongly top-down. Delivery of animal health services, by contrast, has been viewed mainly in terms of economic development, and community-based systems have been cobbled together bottom-up, with NGOs taking the lead. As a result, community animal health workers are not integrated into national systems, and how they are trained and monitored varies even within districts. More broadly, the author details regional differences in community-based animal healthcare initiatives. Whereas in Asia there is considerable government involvement, private practitioners hold much more sway in East Africa. Although the literature is sparse on West Africa and Latin America, professional acceptance of community health workers appears to be high in both regions. The core of the paper is devoted to elaborating six criteria for assessing community-based animal health systems, which the author adapts from studies on primary healthcare systems for humans. She argues that the criteria equity, efficiency, accessibility of services, quality of services, human resources and financial resources must be addressed when scaling-up community-based programmes. The author recommends that policymakers clearly state their national animal health objectives and encourage dialogue between NGOs and existing national structures to allow better coordination of efforts and more equitable and consistent delivery of animal health services in rural areas. She adds that bringing community animal health workers into institutional frameworks and agreeing a standard training curriculum would improve equity in the distribution of benefits.Livestock Production/Industries,
Evaluation of an adapted version of the diabetes prevention program for low- and middle-income countries: A cluster randomized trial to evaluate “Lifestyle Africa” in South Africa
No full textBackground Low-and middle-income countries (LMICs) are experiencing : major increases in diabetes and cardiovascular conditions linked to overweight and obesity. Lifestyle interventions such as the United States National Diabetes Prevention Program (DPP) developed in high-income countries require adaptation and cultural tailoring for LMICs. The objective of this study was to evaluate the efficacy of Lifestyle Africa, an adapted version ; italicsshouldnotbeusedfore of the DPP tailored for an underresourced community in South Africa compared to usual care. Methods and findings Participants were residents of a predominantly Xhosa-speaking urban township of Cape Town, South Africa characterized by high rates of poverty. Participants with body mass index (BMI) ≥ 25 kg/m2 who were members of existing social support groups or “clubs” receiving health services from local nongovernmental organizations (NGOs) were enrolled in a cluster randomized controlled trial that compared Lifestyle Africa (the intervention condition) to usual care (the control condition). The Lifestyle Africa intervention consisted of 17 video-based group sessions delivered by trained community health workers (CHWs). Clusters were randomized using a numbered list of the CHWs and their assigned clubs based on a computer-based random allocation scheme. CHWs, participants, and research team members could not be blinded to condition. Percentage weight loss (primary outcome), hemoglobin A1c (HbA1c), blood pressure, triglycerides, and low-density lipoprotein (LDL) cholesterol were assessed 7 to 9 months after enrollment. An individual-level intention-to-treat analysis was conducted adjusting for clustering within clubs and baseline values. Trial registration is at ClinicalTrials.gov (NCT03342274). Between February 2018 and May 2019, 782 individuals were screened, and 494 were enrolled. Participants were predominantly retired (57% were receiving a pension) and female (89%) with a mean age of 68 years. Participants from 28 clusters were allocated to Lifestyle Africa (15, n = 240) or usual care (13, n = 254). Fidelity assessments indicated that the intervention was generally delivered as intended. The modal number of sessions held across all clubs was 17, and the mean attendance of participants across all sessions was 61%. Outcome assessment was completed by 215 (90%) intervention and 223 (88%) control participants. Intent-to-treat analyses utilizing multilevel modeling included all randomized participants. Mean weight change (primary outcome) was −0.61% (95% confidence interval (CI) = −1.22, −0.01) in Lifestyle Africa and −0.44% (95% CI = −1.06, 0.18) in control with no significant difference (group difference = −0.17%; 95% CI = −1.04, 0.71; p = 0.71). However, HbA1c was significantly lower at follow-up in Lifestyle Africa compared to the usual care group (mean difference = −0.24, 95% CI = −0.39, −0.09, p = 0.001). None of the other secondary outcomes differed at follow-up: systolic blood pressure (group difference = −1.36; 95% CI = −6.92, 4.21; p = 0.63), diastolic blood pressure (group difference = −0.39; 95% CI = −3.25, 2.30; p = 0.78), LDL (group difference = −0.07; 95% CI = −0.19, 0.05; p = 0.26), triglycerides (group difference = −0.02; 95% CI = −0.20, 0.16; p = 0.80). There were no unanticipated problems and serious adverse events were rare, unrelated to the intervention, and similar across groups (11 in Lifestyle Africa versus 13 in usual care). Limitations of the study include the lack of a rigorous dietary intake measure and the high representation of older women. Conclusions In this study, we found that Lifestyle Africa was feasible for CHWs to deliver and, although it had no effect on the primary outcome of weight loss or secondary outcomes of blood pressure or triglycerides, it had an apparent small significant effect on HbA1c. The study demonstrates the potential feasibility of CHWs to deliver a program without expert involvement by utilizing video-based sessions. The intervention may hold promise for addressing cardiovascular disease (CVD) and diabetes at scale in LMICs. Copyright: © 2022 Catley et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Non-overlapping dual camera fall detection using the NAO humanoid robot
No full textWith an aging population and a greater desire for independence, the dangers of falling incidents in the elderly have become particularly pronounced. In light of this, several technologies have been developed with the aim of preventing or monitoring falls. Failing to strike the balance between several factors including reliability, complexity and invasion of privacy has seen prohibitive in the uptake of these systems. Some systems rely on cameras being mounted in all rooms of a user's home while others require being worn 24 hours a day. This paper explores a system using a humanoid NAO robot with dual vertically mounted cameras to perform the task of fall detection
A first survey of the global population size and distribution of the Scottish Crossbill Loxia scotica
No full text"The survey was part-financed by Scottish Natural Heritage"A survey of Scottish Crossbills Loxia scotica was carried out in 3,506 km2 of conifer woodland in northern Scotland during January to April 2008 to provide the first estimate of the global population size for this endemic bird. Population estimates were also made for Common Crossbills L. curvirostra and Parrot Crossbills L. pytyopsittacus within this range. Crossbills were lured to systematically selected survey points for counting, sexing and recording their calls for later call-type (species) identification from sonograms. Crossbills were located at 451 of the 852 survey points, and adequate tape-recordings made at 387 of these. The Scottish Crossbill had a disjunct distribution, occurring largely within the eastern part of the study area, but also in the northwest. Common Crossbills had a mainly westerly distribution. The population size of postjuvenile Scottish Crossbills was estimated as 13,600 (95%C.I. 8,130–22,700), which will approximate to 6,800 (4,065–11,350) pairs. Common Crossbills were more abundant within this range (27,100, 95% C.I. 14,700–38,400) and Parrot Crossbills rare (about 100). The sex ratio was not significantly different from parity for Scottish Crossbills. The modal number at survey points was two but numbers were larger in January than later in the survey. The numbers and distribution of all crossbill species are likely to vary between years, depending upon the size of the cone crops of the different conifers: all were coning in 2008. Common Crossbill and Parrot Crossbill numbers will also be affected by irruptions from continental Europe. A monitoring scheme is required to detect any population trend, and further work on their habitat requirement (e.g. conifer selection at different seasons) is needed to inform habitat management of native and planted conifer forests to ensure a secure future for this endemic bird.Peer reviewe
A manual for practitioners in community-based animal health outreach (CAHO) for highly pathogenic avian influenza
No full textAs part of the Strengthening Avian Influenza Detection and Response (SAIDR) project in Egypt which was funded by the United States Agency for International Development (USAID), a number of training courses in highly pathogenic avian influenza (HPAI) participatory disease surveillance (PDS) later elaborated to be Community based Animal Health Outreach (CAHO) have been conducted for 108 veterinarians (making 54 teams) in 15 governorates. The purpose of this manual is to provide a reference for veterinarians during and after CAHO training. The main focus of the manual is on HPAI but the methods can be easily adapted and applied to address other livestock diseases. This publication is based on the ILRI publication, Introduction to Participatory Epidemiology and its Application to Highly Pathogenic Avian Influenza Participatory Disease Surveillance: A Manual for Participatory Disease Surveillance Practitioners. The authors are glad to acknowledge using participatory epidemiology training handouts prepared by Jeffrey Mariner over the last years, the Food and Agriculture Organization publication Manual on Participatory Epidemiology: Methods for the collection of action-oriented epidemiological intelligence of which he was co-author and AU-IBAR’s Participatory epidemiology: A guide for trainers by Andy Catley
Electronic Cigarettes and Future Marijuana Use: A Longitudinal Study
No full text
BACKGROUND:
Cigarettes have been strongly associated with subsequent marijuana use among adolescents, but electronic cigarettes (e-cigarettes) are now rapidly replacing traditional cigarettes among youth. This study examines associations between youth e-cigarette use and subsequent marijuana use in a national sample.
METHODS:
Youth (aged 12–17 years) never marijuana users at wave 1 (n = 10 364; 2013–2014) from the Population Assessment of Tobacco and Health study were followed-up in 1 year (wave 2, 2014–2015). Multivariable logistic regressions were performed to evaluate associations between e-cigarette use at wave 1 and ever/heavy marijuana use in the past 12 months (P12M) and at wave 2.
RESULTS:
Among never marijuana users, e-cigarette ever use (versus never use) at wave 1 was associated with increased likelihood of marijuana P12M use (adjusted odds ratio [aOR] = 1.9; 95% confidence interval [CI]: 1.4–2.5) at wave 2. There was a significant interaction between e-cigarette use and age (P < .05) with aOR = 2.7 (95% CI: 1.7–4.3) for adolescents aged 12 to 14 and aOR = 1.6 (95% CI: 1.2–2.3) for adolescents aged 15 to 17. The association with heavy marijuana use was significant among younger adolescents (aOR = 2.5; 95% CI: 1.2–5.3) but was not among older adolescents. Heavier e-cigarette use at wave 1 yielded higher odds of P12M and heavy marijuana use at wave 2 for younger adolescents.
CONCLUSIONS:
E-cigarette use predicts subsequent marijuana use among youth, with a stronger associations among young adolescents. Reducing youth access to e-cigarettes may decrease downstream marijuana use.
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Posttreatment motivation and alcohol treatment outcome 9 months later: findings from structural equation modeling.
No full textOBJECTIVE: To investigate the association between posttreatment motivation to change as measured by the Readiness to Change Questionnaire Treatment Version and drinking outcomes 9 months after the conclusion of treatment for alcohol problems. METHOD: Data from 392 participants in the United Kingdom Alcohol Treatment Trial were used to fit structural equation models investigating relationships between motivation to change pre- and posttreatment and 5 outcomes 9 months later. The models included pathways through changes in drinking behavior during treatment and adjustment for sociodemographic information. RESULTS: Greater posttreatment motivation (being in action vs. preaction) was associated with 3 times higher odds of the most stringent definition of positive outcome (being abstinent or entirely a nonproblem drinker) 9 months later (odds ratio = 3.10, 95% confidence interval [1.83, 5.25]). A smaller indirect effect of pretreatment motivation on this outcome was seen from pathways through drinking behavior during treatment and posttreatment motivation (probit coefficient = 0.08, 95% confidence interval [0.03, 0.14]). A similar pattern of results was seen for other outcomes evaluated. CONCLUSION: Posttreatment motivation to change has hitherto been little studied and is identified here as a clearly important predictor of longer term treatment outcome
Disrupted self-perception in people with chronic low back pain: Further evaluation of the fremantle back awareness questionnaire
No full textSeveral lines of evidence suggest that body-perception is altered in people with chronic back pain. Maladaptive perceptual awareness of the back might contribute to the pain experience as well as serve as a target for treatment. The Fremantle Back Awareness Questionnaire (FreBAQ) is a simple questionnaire recently developed to assess back-specific altered self-perception. The aims of this study were to present the outcomes of a comprehensive evaluation of the questionnaire’s psychometric properties and explore the potential relationships between body-perception, nociceptive sensitivity, distress and beliefs about back pain and the contribution these factors might play in explaining pain and disability. Two-hundred and fifty-one people with chronic back pain completed the questionnaire as well as a battery of clinical tests. The Rasch model was used to explore the questionnaires psychometric properties and correlation and multiple linear regression analyses were used to explore the relationship between altered body-perception and clinical status. The FreBAQ appears unidimensional with no redundant items, has minimal ceiling and floor effects, acceptable internal consistency, was functional on the category rating scale and was not biased by demographic or clinical variables. FreBAQ scores were correlated with sensitivity, distress and beliefs and were uniquely associated with both pain and disability
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