Jeffrey L Jarvis

Bio: Jeffrey L Jarvis is an academic researcher. The author has contributed to research in topics: Key (cryptography) & Line (text file). The author has an hindex of 1, co-authored 2 publications receiving 18 citations.

What's the Bottom Line?

Abstract: Practicing tai chi may help to improve balance and stability in older people and in those with Parkinson’s disease, reduce back pain and pain from knee osteoarthritis, and improve quality of life in people with heart disease, cancer, and other chronic illnesses. Tai chi and qi gong may ease fibromyalgia pain and promote general quality of life. Qi gong may reduce chronic neck pain, but study results are mixed. Tai chi also may improve reasoning ability in older people.

The green waves of environmental sustainability in sport

Abstract: The purpose of this paper is to provide a conceptual framework surrounding the typology of environmental sustainability efforts made within the sport industry. We draw from multiple theoretical fra...

Acupuncture for chronic pain: an individual patient data meta-analysis

Abstract: BACKGROUND Although acupuncture is widely used for chronic pain, there remains considerable controversy as to its value. We aimed to determine the effect size of acupuncture for 4 chronic pain conditions: back and neck pain, osteoarthritis, chronic headache, and shoulder pain. METHODS We conducted a systematic review to identify randomized controlled trials (RCTs) of acupuncture for chronic pain in which allocation concealment was determined unambiguously to be adequate. Individual patient data meta-analyses were conducted using data from 29 of 31 eligible RCTs, with a total of 17 922 patients analyzed. RESULTS In the primary analysis, including all eligible RCTs, acupuncture was superior to both sham and no-acupuncture control for each pain condition (P < .001 for all comparisons). After exclusion of an outlying set of RCTs that strongly favored acupuncture, the effect sizes were similar across pain conditions. Patients receiving acupuncture had less pain, with scores that were 0.23 (95% CI, 0.13-0.33), 0.16 (95% CI, 0.07-0.25), and 0.15 (95% CI, 0.07-0.24) SDs lower than sham controls for back and neck pain, osteoarthritis, and chronic headache, respectively; the effect sizes in comparison to no-acupuncture controls were 0.55 (95% CI, 0.51-0.58), 0.57 (95% CI, 0.50-0.64), and 0.42 (95% CI, 0.37-0.46) SDs. These results were robust to a variety of sensitivity analyses, including those related to publication bias. CONCLUSIONS Acupuncture is effective for the treatment of chronic pain and is therefore a reasonable referral option. Significant differences between true and sham acupuncture indicate that acupuncture is more than a placebo. However, these differences are relatively modest, suggesting that factors in addition to the specific effects of needling are important contributors to the therapeutic effects of acupuncture.

The changing nature of managerial work: The effects of corporate restructuring on management jobs and careers

Abstract: This article analyses contemporary issues relevant to understanding the changing nature of management and managerial work. The argument is developed in four parts. First, to provide context, we offer an overview of the literature on the organization and control of managerial work, tracing contributions mainly from the early 1950s onwards. Second, we discuss the first of two related concerns relevant to understanding the contemporary nature of managerial work – strategies of organizational restructuring: an analysis highlighting the role of downsizing and delayering within corporate campaigns promoting ‘post-bureaucratic’ systems. Third, we extend this discussion by addressing how such corporate restructuring affects managers in their everyday work – notably in relation to the perceptions and realities of growing job insecurity and career uncertainty: an analysis that frequently draws upon our own investigations to establish an agenda for future research. The article concludes by summarizing the content of four research articles whose arguments relate to issues discussed in this analysis of managerial work. Keywords