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Perspectives and challenges in the future use of plant nutrients in tilled and mixed agricultural systems.

Producing an adequate quantity of healthy food without polluting the environment is a serious challenge for future agriculture around the world. The Food 21 research program in Sweden has researched all aspects--economic, environmental, and social--of sustainable farming systems. This paper presents some of the research from that and other relevant international research programs that have focused on better nutrient-use efficiency, especially for nitrogen and phosphorus. It shows that a range of sustainable solutions to nutrient-use efficiency exists, some of which are complex but some very simple. Government policies, including subsidies; research and technology; and public acceptance of farming practices all combine to create these solutions. Participatory approaches to knowledge transfer are needed, in which scientists, policy makers, farmers, advisers, and consumers exchange information and together build sustainable farming systems.

Agriculture↗

Data entry workers perceptions and satisfaction response to the "stop and stretch" software program.

Cumulative Trauma Disorder (CTD) is a collection of chronic musculoskeletal disorders caused by frequent, sustained, and repetitive movements, most notably by computer usage at the workplace. A computer based break reminder program (Stop and Stretch) has been developed and installed to prevent CTDs caused by prolonged computer usage at the workplace. We investigated users' opinions to the Stop and Stretch program at their work place. 19 computer users were recruited as the subjects of the study. We conducted a survey after all the subjects used the Stop and Stretch program for one month. Among the nineteen subjects, 52.5% or 10 noticed a difference of symptoms after using the program; 63.3% or 12 thought the program had positive effect on their productivity; 100% or all 19 thought the program was easy to follow; 100% or all 19 thought it was helpful; 94.7% or18 were satisfied with the program; and the same value would recommend the program to others. When grouped into those who had prior experience with using stretch and exercise as part of their work routine15 subjects had no prior experience; and 14 participants within that group were satisfied or very satisfied with the program; 93.3% or 14 would recommend it to co-workers; and over half of those 15 thought the program is easy to use. The study provided insight to the response to using "stretch break software" and provided indicators of satisfaction with the Stop and Stretch program and that the program had sufficient usability and acceptance within a workplace setting which might be applied in other work settings similar to these.

Consumer Behavior↗

A calculator program for least-squares parameter estimation according to the one-compartment kinetic model with zero-order input.

A calculator program that performs a nonlinear least-squares fit to data conforming to the one-compartment model with zero-order input is described. The program, which is designed for the Hewlett-Packard HP-41 CV calculator, is based on the Gauss-Newton iterative algorithm as modified by Hartley. A subroutine for calculation of initial parameter estimates is incorporated into the program. Plasma concentration data relative to a single oral dose of a sustained-release theophylline formulation are used to demonstrate the practical application of the program.

Computers↗

Teaching Filipino physiotherapists on-shore: an Australian-Filipino collaborative postgraduate health education initiative.

INTRODUCTION: This paper outlines a collaborative, cross-national educational initiative, commenced in 2001, in which an Australian university provided clinical and research education assistance to a Filipino University. The aim was to establish the first Filipino Master of Science in Physical Therapy program that would train physiotherapists in their home country using best available content and teaching expertise. PROCESS: Principles of quality transnational education underpinned the program design and contractual agreements. Australian educational input was tailored to local constraints to ensure efficient and effective delivery of high quality, relevant material. Approximately 60% of the inaugural program was delivered by Australian educators in one-week intensive courses on-shore in the Philippines, using local facilities and case-scenarios. Follow-up support and evaluation were provided by video, email, written workbooks and assignments once these educators returned to Australia. Filipino graduates, who were competent with course content, taught the remaining subjects. In line with an aim of empowering Filipino graduates to assume responsibility for teaching all aspects of the program by 2006, the Australian educators are now teaching less than 25% of the course content to subsequent student cohorts. After 2006, they will provide mentorship only to the program. RESULTS: In 2003, 12 students in the first cohort graduated with Master of Science in Physical Therapy from the University of Santo Tomas (UST). Twenty-four students subsequently enrolled in the second cohort (commenced 2003) and 21 students into the third cohort (commenced 2004). Six of the inaugural graduate cohort are currently acting as tutors for the Australian educators and will assume full teaching roles in 2006. Comparison of feedback from student evaluations at UST indicates significant improvements in teaching quality for the graduates from the inaugural program. Research activity and publications have also increased as a result of completion of the program. DISCUSSION: Such a cross-institutional, cross-national program has not been described previously for physiotherapy, and no other similar health program (for nursing) evaluated the educational processes in the manner used in this program. The program met its aims and has produced sustainable educational outcomes and outputs. CONCLUSION: Future scholarly activities between the two institutions include extension of postgraduate training to other health disciplines, cross-institutional PhD student enrollments and collaborative research.

Australia↗

Education and training for radiation scientists: radiation research program and American Society of Therapeutic Radiology and Oncology Workshop, Bethesda, Maryland, May 12-14, 2003.

Current and potential shortfalls in the number of radiation scientists stand in sharp contrast to the emerging scientific opportunities and the need for new knowledge to address issues of cancer survivorship and radiological and nuclear terrorism. In response to these challenges, workshops organized by the Radiation Research Program (RRP), National Cancer Institute (NCI) (Radiat. Res. 157, 204-223, 2002; Radiat. Res. 159, 812-834, 2003), and National Institute of Allergy and Infectious Diseases (NIAID) (Nature, 421, 787, 2003) have engaged experts from a range of federal agencies, academia and industry. This workshop, Education and Training for Radiation Scientists, addressed the need to establish a sustainable pool of expertise and talent for a wide range of activities and careers related to radiation biology, oncology and epidemiology. Although fundamental radiation chemistry and physics are also critical to radiation sciences, this workshop did not address workforce needs in these areas. The recommendations include: (1) Establish a National Council of Radiation Sciences to develop a strategy for increasing the number of radiation scientists. The strategy includes NIH training grants, interagency cooperation, interinstitutional collaboration among universities, and active involvement of all stakeholders. (2) Create new and expanded training programs with sustained funding. These may take the form of regional Centers of Excellence for Radiation Sciences. (3) Continue and broaden educational efforts of the American Society for Therapeutic Radiology and Oncology (ASTRO), the American Association for Cancer Research (AACR), the Radiological Society of North America (RSNA), and the Radiation Research Society (RRS). (4) Foster education and training in the radiation sciences for the range of career opportunities including radiation oncology, radiation biology, radiation epidemiology, radiation safety, health/government policy, and industrial research. (5) Educate other scientists and the general public on the quantitative, basic, molecular, translational and applied aspects of radiation sciences.

Curriculum↗

Electrophysiologic effects of bepridil in patients with refractory ventricular tachycardia assessed by programmed electrical stimulation.

The effect of intravenous bepridil, a new calcium antagonist with class I and III properties, was tested in 21 patients with sustained ventricular tachyarrhythmias refractory to a mean of five antiarrhythmic agents as assessed by programmed right ventricular stimulation. At control electrophysiologic study without antiarrhythmic agents, sustained monomorphic ventricular tachycardia (VT) was initiated in 20 patients and ventricular fibrillation (VF) was initiated in one patient. After 3 mg/kg of bepridil was administered, VT was still inducible in 19 patients (3 patients had self-terminating VT); the other 2 patients had no inducible VT after bepridil. Bepridil prolonged significantly the QTc interval, the effective refractory period, and the cycle length of induced ventricular tachycardia. Two patients with no inducible VT after intravenous bepridil were placed on oral bepridil (300 mg/day). One patient died suddenly and one patient died of progressive heart failure. The results seem to indicate that the efficacy of bepridil in patients with refractory ventricular tachycardia is limited.

Aged↗

Project safety as a sustainable competitive advantage.

INTRODUCTION: To be consistently profitable, a construction company must complete projects in scope, on schedule, and on budget. At the same time, the nature of the often high-risk work performed by construction companies can result in high accident rates. Clients and other stakeholders are placing increasing pressure on companies to decrease those accident rates. Clients routinely demand copies of safety plans and evidence of past results at the "pre-qualification" or "request for proposal" stages of the procurement process. Are high accident rates and the associated costs just a part of business? FINDINGS: Companies that deliver on scope, schedule, and budget have a competitive advantage. Is it possible for projects with low accident rates to use it as a competitive advantage? Is the value added by safety just a temporary or parity issue, or does a successful safety program offer significant advantage to the company and the client? IMPACT ON INDUSTRY: This article concludes that in the case of a high-risk industry, such as the construction industry, an organization with a successful safety program can promote safety performance as a sustainable competitive advantage. It is a choice the company can make.

Commerce↗

Church-based health promotion interventions: evidence and lessons learned.

Church-based health promotion (CBHP) interventions can reach broad populations and have great potential for reducing health disparities. From a socioecological perspective, churches and other religious organizations can influence members' behaviors at multiple levels of change. Formative research is essential to determine appropriate strategies and messages for diverse groups and denominations. A collaborative partnership approach utilizing principles of community-based participatory research, and involving churches in program design and delivery, is essential for recruitment, participation, and sustainability. For African Americans, health interventions that incorporate spiritual and cultural contextualization have been effective. Evidence indicates that CBHP programs have produced significant impacts on a variety of health behaviors. Key elements of CBHP are described with illustrations from the authors' research projects.

Black or African American↗

Integrating occupational health, safety and worksite health promotion: opportunities for research and practice.

BACKGROUND: There is emerging evidence that coordinating and integrating worksite health promotion and occupational health and safety enhances the effectiveness of efforts to promote and protect worker health, and growing attention internationally to the importance of integrating worksite health promotion and occupational health and safety. OBJECTIVES: (1) To present the rationale and scientific evidence for coordinating and integrating worksite health promotion and occupational health and safety as a means of enhancing the effectiveness of efforts to promote and protect worker health; and (2) to discuss recommendations for research priorities and future directions. METHODS: Review of the literature, drawing mainly on studies from the United States and Europe. RESULTS: The strongest evidence available supports the efficacy of this intervention model in promoting smoking cessation, particularly among blue-collar workers; some evidence additionally indicates significant effects for other health behaviors. Little evidence is available to date documenting the impact of these programs on occupational health and safety outcomes. CONCLUSIONS: Priority research directions include: social epidemiological research to identify key work-related factors associated with hazardous occupational exposures and risk-related behaviors, and to identify the underlying causes of social disparities in worker health; methods development research aimed at developing both appropriate measurement tools and new intervention approaches; efficacy and effectiveness studies to examine the effects of integrated interventions on both occupational health and safety outcomes as well as health behavior changes; assessments of the process of intervention implementation, including intervention implementation evaluation, cost assessments, and process-to-outcome assessments; and dissemination and durability studies, to identify strategies to promote the sustainability and dissemination of evidence-based programs.

Diet↗

Tuberculosis control: past 10 years and future progress.

The number of countries implementing directly observed therapy short-course (DOTS) has grown rapidly in the past decade and more than 10 million patients have now been treated under DOTS. While global case detection rates increased slightly, from 35% to 40% between 1995 and 2000, the proportion attributable to DOTS grew from less than one-third to more than two-thirds. DOTS is replacing inferior treatment but still treating fewer than 40% of estimated new TB cases. Misconceptions threaten to undermine continued success in tuberculosis control. The first misconception is that treatment observation is unnecessary. Treatment observation needs to be made more patient-friendly, but must not be abandoned. The second misconception is that health care reform will strengthen tuberculosis control. TB control is essentially a management problem. Greater accountability of governments, donors and providers is essential. A third misconception is to focus on treating multi-drug-resistant tuberculosis (MDRTB) cases without addressing the root causes of MDRTB. While it is important, on a clinical basis and epidemiologically in some contexts, to care optimally for patients with MDRTB, it is more important to address the cause of MDRTB and to fix the program generating MDRTB. The fourth misconception is an inordinate concern for sustainability. Delaying assistance will make implementation and sustainability in the future more difficult. Tuberculosis control is remarkably inexpensive and cost-effective, but efforts will fail unless programs have the ability to hire staff, purchase supplies, and contract for services efficiently. Critical issues for the future of tuberculosis control are sustained funding, technical rigor, and good management.

Attitude of Health Personnel↗

The implementation of the Fast Track program: an example of a large-scale prevention science efficacy trial.

In 1990, the Fast Track Project was initiated to evaluate the feasibility and effectiveness of a comprehensive, multicomponent prevention program targeting children at risk for conduct disorders in four demographically diverse American communities (Conduct Problems Prevention Research Group [CPPRG], 1992). Representing a prevention science approach toward community-based preventive intervention, the Fast Track intervention design was based upon the available data base elucidating the epidemiology of risk for conduct disorder and suggesting key causal developmental influences (R. P. Weissberg & M. T. Greenberg, 1998). Critical questions about this approach to prevention center around the extent to which such a science-based program can be effective at (1) engaging community members and stakeholders, (2) maintaining intervention fidelity while responding appropriately to the local norms and needs of communities that vary widely in their demographic and cultural/ethnic composition, and (3) maintaining community engagement in the long-term to support effective and sustainable intervention dissemination. This paper discusses these issues, providing examples from the Fast Track project to illustrate the process of program implementation and the evidence available regarding the success of this science-based program at engaging communities in sustainable and effective ways as partners in prevention programming.

Adolescent↗

Financial risk relationships and adoption of management strategies in physician groups for self-administered injectable drugs.

OBJECTIVE: To consider the extent, nature, and range of risk arrangements between physician groups and health maintenance organizations (HMOs) for self-administered injectable (SAI) drugs; to examine types and frequencies of SAI drug-use management strategies adopted by physician groups; and to explore the relationship between locus and level of financial risk for SAIs and physician group strategy adoption. METHODS: We used a multiple case-study design to select physician groups and their health maintenance organization (HMO) contractual partners in 4 markets in the United States (Northwest, Northeast, Midwest, Southwest). Physician groups in these markets were chosen based on size (e50 physicians) and experience with drug risk (e1 year). Physician groups were asked to identify their 3 major HMO contractual partners in each market. Telephone interviews were conducted from January 2000 to June 2001, with the resulting purposive sample of 37 individuals representing 20 physician groups. RESULTS: We found that the level and locus of SAI financial risk were related to the adoption of management strategies. Physician groups with higher financial risk for SAIs adopted more strategies than lower-risk groups. Groups with SAI financial risk in the medical services capitation (MSC) adopted 9.2 strategies per group. In contrast, groups with SAI financial risk in the pharmacy-risk budget (PRB) averaged 1.5 strategies per group. Groups with SAI financial risk in both the MSC and PRB fell in-between, averaging 4.5 strategies per group. The most frequently adopted strategy was designing evidenced-based therapeutic guidelines, i.e., protocols based on evidence from the peer-reviewed literature used to guide physicians in the treatment of typically chronic conditions (9 groups, 45% of sample). The second most common strategy involved adapting the existing utilization management system to process SAIs (7 groups, 35%) and the establishment of office procedures for internal authorization (5 groups, 25%). The least frequently used strategies were determining amount paid to out-of-group physician providers (1 group, 5%) and hiring personnel (e.g., pharmacists) in claims or utilization management departments to implement and manage SAI programs (1 group, 5%). We also identified potential factors that increased the likelihood of strategy adoption and that could slow the rate of SAI cost increases. CONCLUSION: Our findings suggest that adoption of SAI drug-use management strategies may be more likely to occur when there is a minimum level of risk for SAI drug costs. Likewise, both the adoption of strategies and the opportunity to slow the rate of SAI cost increases may be more likely to occur when 3 additional factors are present: a contractual environment conducive to controlling SAI drug costs, the ability to implement SAI drug-use management strategies, and power in negotiations with drug manufacturers to reduce SAI prices. A sustainable and affordable SAI financial risk management program maximizing these factors while minimizing the financial burden for patients will require collaboration among all stakeholders, payers, providers, drug manufacturers, and patients.

Ambulatory Care↗

Sustainable growth, the DuPont way.

Like many manufacturers, DuPont traditionally has grown by making more and more "stuff." And its business growth has been proportional to the amount of raw materials and energy used--as well as the resulting waste and emissions from operations. Over the years, though, DuPont became aware that cheap supplies of nonrenewable resources wouldn't be endlessly available and that the earth's ecosystems couldn't indefinitely absorb the waste and emissions of production and consumption. Chad Holliday, chairman and CEO of DuPont, believes strongly in the challenge of sustainable growth and makes the business case for it: By using creativity and scientific knowledge effectively, he says, companies can provide strong returns for shareholders and grow their businesses--while also meeting the human needs of societies around the world and reducing the environmental footprint of their operations and products. In fact, a focus on sustainability can help identify new products, markets, partnerships, and intellectual property and lead to substantial business growth. Holliday describes how DuPont developed a three-pronged strategy to translate the concept of sustainability into nuts-and-bolts business practices. Focusing on integrated science, knowledge intensity, and productivity improvement, the strategy was accompanied by a new way to measure progress quantitatively. Sustainable growth should be viewed not as a program for stepped-up environmental performance but as a comprehensive way of doing business, one that delivers tremendous economic value and opens up new opportunities. Ultimately, companies will find that they can generate substantial business value through sustainability while both enhancing the quality of life around the world and protecting the environment.

Conservation of Natural Resources↗

Design and initial results from a supported education initiative: the Kansas Consumer as Provider program.

Despite increased attention to consumer-providers, there remains a lack of models that prepare, support, and sustain consumers in provider roles. This article describes the Consumer as Provider (CAP) Training program at the University of Kansas School of Social Welfare, which creates opportunities for individuals with severe psychiatric disabilities to develop knowledge and skills to be effective as human service providers. CAP fosters a partnership between colleges and community mental health centers where students experience classroom and internship activities. Outcome from a 2-year longitudinal study on CAP graduates indicates increased employability, especially in social services field, and higher post-secondary educational involvement.

Adult↗

Long-term outcome following programmed electrical stimulation in patients with high-grade ventricular ectopy.

To determine if programmed electrical stimulation (PES) could be utilized to identify patients with high-grade ventricular ectopy at low- or high-risk for sudden cardiac death, we performed PES in 40 patients with high-grade ventricular ectopy refractory to conventional antiarrhythmic agents. Twenty-one patients had a previous myocardial infarction, five had cardiomyopathy, six had hypertension, three had valvular heart disease and five had no known structural heart disease. The mean age was 50 years (range, 18 to 76). During programmed ventricular stimulation, eight patients had inducible sustained (more than 30 seconds) monomorphic ventricular tachycardia (Group I) but in 32 patients sustained ventricular tachycardia was not inducible (Group II). None of the five patients without structural heart disease were inducible while seven out of 21 (33%) patients with previous myocardial infarction had inducible ventricular tachycardia (VT). Antiarrhythmic therapy was instituted in patients with inducible VT; patients without inducible VT did not receive antiarrhythmic agents. In Group I, seven of the eight patients are alive (mean follow-up, 16 months) and in Group II, 28 of the 32 patients are alive (mean follow-up, 17 months). None of the five deaths were sudden. We conclude that in the absence of antiarrhythmic therapy, the incidence of sudden cardiac death is very low in patients with high-grade ventricular ectopy who do not have inducible monomorphic ventricular tachycardia during programmed ventricular stimulation.

Death, Sudden↗

Reproducibility of programmed electrical stimulation responses in patients with ventricular tachycardia or fibrillation associated with coronary artery disease.

Invasive electrophysiologic studies were performed in 102 patients with sustained ventricular tachycardia (VT) or ventricular fibrillation (VF) using an aggressive programmed electrical stimulation (PES) protocol. The study was repeated after 2.0 +/- 2.9 days in all patients with no intercurrent changes in antiarrhythmic therapy. Patients with coronary artery disease (n = 72) were identified and PES results of these patients were analyzed and compared with results of patients without coronary artery disease. Multiple clinical and electrophysiologic factors were analyzed to determine any association with concordance of PES responses. No significant difference in concordance of PES responses was found in the 2 groups of patients. PES responses were groups into 3 categories: (1) noninducible, (2) nonsustained VT, and (3) sustained VT. Kappa values of PES responses of noninducible and sustained VT in both groups were higher and therefore the PES responses were more reproducible than nonsustained VT. The induction of sustained monomorphic VT was more reproducible than a PES response of nonsustained or sustained polymorphic VT. Inducible sustained VT with a rate of greater than or equal to 250 beats/min was less reproducible than induction of sustained VT with a rate less than 250 beats/min. Induction of VT by 3 extrastimuli was less reproducible than with any other mode. This short-term variability may account for false negatives associated with PES-directed antiarrhythmic therapy. Because of these findings, it is recommended that nonsustained VT and sustained polymorphic or rapid polymorphic VT should not be used as PES end points to guide antiarrhythmic therapy.

Anti-Arrhythmia Agents↗

The value of asthma camps for young people in Victoria, Australia.

PURPOSE: This paper investigates the impact of the Asthma Foundation of Victoria's educational camp program on children's knowledge of asthma and its management, their feelings about asthma, and their attitudes toward physical and social activities. Parents' observations of changes in their child's behaviour and attitudes are also reported. DESIGN AND METHODS: This research was descriptive and applied. It used questionnaires atfour stages (directly pre- and post-camp, three-four months and ten-15 months post-camp) of an asthma education camp program to assess child asthma knowledge levels. At three months post-camp, parental observations of children's attitudes and behaviours were assessed using a questionnaire. Children's feelings toward asthma were also assessed using a questionnaire pre- and post-camp. RESULTS: The children surveyed displayed a better knowledge of asthma and how to manage their condition immediately after the camp. This knowledge tended to return to pre-camp levels after ten months. The children also reported less anxiety and fear about their illness, a greater sense of wellbeing, and more confidence in participating in a whole range of physical and social activities. Many parents also noted positive changes in their children in terms of activities and asthma management at three months post-camp. CLINICAL IMPLICATIONS: Although there were limitations to sustaining knowledge gained in the asthma camping program, the camping experience provided a benefit for children in terms of promoting their mental and social wellbeing. When readers consider modernising asthma education (e.g. shorter camps, education in everyday social settings such as schools), they need to consider retaining the key ingredients of the more traditional camping program that supports good asthma management, wellbeing and social participation.

Adolescent↗

From concept to practice: using the School Health Index to create healthy school environments in Rhode Island elementary schools.

INTRODUCTION: The prevalence of childhood obesity is increasing, and schools are ideal places to support healthy eating and physical activity. In 2000, the Centers for Disease Control and Prevention (CDC) developed the School Health Index, a self-assessment and planning tool that helps schools evaluate and improve physical activity and nutrition programs and policies. Although many state education agencies, health departments, and individual schools have used the School Health Index, few systematic evaluations of the tool have been performed. We examined the physical activity and nutrition environments in Rhode Island's public elementary schools with high and low minority student enrollments and evaluated a school-based environmental and policy intervention that included implementation of the School Health Index. METHODS: As part of a CDC Division of Nutrition and Physical Activity cooperative agreement awarded to the Rhode Island Department of Health, we conducted a needs assessment of 102 elementary schools and implemented an intervention in four inner-city elementary schools. In phase 1, we analyzed the Rhode Island Needs Assessment Tool (RINAT), a telephone survey of principals in approximately 50% of all Rhode Island public elementary schools in the state during the 2001-2002 school year (n = 102). Comparisons of the nutrition and physical activity environments of schools with low and high minority enrollment were calculated by cross-tabulation with the chi-square test. In phase 2, we used process and outcome evaluation data to assess the use of the School Health Index in creating healthier environments in schools. Our intervention--Eat Healthy and Get Active!--involved implementing three of the eight School Health Index modules in four Rhode Island elementary schools. RESULTS: Survey data revealed that schools with high minority enrollment (student enrollment of > or =10% black, > or =25% Hispanic, or both) offered few programs supporting healthy eating and physical activity (P < .05). Schools with high and low minority enrollment both offered nonnutritious foods and beverages. Process evaluation data revealed that 1) principals play a pivotal role on School Health Index teams, 2) schoolwide validation of a team's small successes is crucial for sustaining a commitment to healthy lifestyle policies and programs, and 3) external facilitators are essential for implementation success. Outcome data showed that all schools developed at least one policy or environmental strategy to create a healthy school environment. Only two schools implemented immediate changes. CONCLUSION: Needs assessment, external facilitation, and evaluation are the foundation for sustainable school-based policies. Although the School Health Index is universally perceived as a user-friendly assessment tool, implementation is likely to be less successful in schools with low staff morale, budgetary constraints, and inconsistent administrator support.

Child↗