6,051 research outputs found

    Study of the normal fecal bacterial flora of man quarterly progress report, jan. 1 - mar. 31, 1965

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    Human fecal bacteria isolation and metabolic studies for nutrition in digestive syste

    Study of the normal fecal bacterial flora of man quarterly progress report, oct. 1 - dec. 31, 1964

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    Human fecal bacteria culturing and isolation, and metabolic effects of nutrition in digestive trac

    Effect of diet and atmosphere on intestinal and skin flora. Volume II - Literature survey

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    Literature survey and experimental observations of human skin microflora, including study of men confined in simulated spacecraft environmen

    Automated microorganism Sample Collection Module

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    Modified Gelman Sampler obtains representative sample of microorganism population. Proposed Sample Collection Module is based on direct inoculation of selected solid growth media encased in a cartridge at all times except during inoculation. Cartridge can be handled with no danger of contamination to sample or operator

    Optical Stark Effect and Dressed Excitonic States in a Mn-doped Quantum Dot

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    We report on the observation of spin dependent optically dressed states and optical Stark effect on an individual Mn spin in a semiconductor quantum dot. The vacuum-to-exciton or the exciton-to-biexciton transitions in a Mn-doped quantum dot are optically dressed by a strong laser field and the resulting spectral signature is measured in photoluminescence. We demonstrate that the energy of any spin state of a Mn atom can be independently tuned using the optical Stark effect induced by a control laser. High resolution spectroscopy reveals a power, polarization and detuning dependent Autler-Townes splitting of each optical transition of the Mn-doped quantum dot. This experiment demonstrates a complete optical resonant control of the exciton-Mn system

    Identifying ways of enhancing the psychological functioning in victims of sexual offences from clinical and justice system management perspectives

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    Research efforts in the field of sexual victimisation have traditionally focussed on identifying ways to increase reporting rates. While reporting rates still remain low with estimates in the 10-15% vicinity (Australian Bureau of Statistics, 1996; Australian Institute of Criminology. 2000), there is thought to have been an increase and stabilisation of reporting rates in recent years (Australian Bureau of Statistics, 1998, 2002; Roberts & Gebotys, 1992). Brought on by this increase and stabilisation of reporting rates, is a need to expand the research focus to include the effective management of victims of sexual offences. Management can take place on two main levels: on a c1inical1evel (for those who access support services) and on a justice system level (for those who report to the police). The purpose of this research was to examine the circumstances of 132 women and men who had been victims of sexual offences at some time in their lives, from both clinical and justice system perspectives. This was achieved by combining quantitative and qualitative methodologies to examine the complex nature of participants\u27 psychological functioning, and the interaction between indicators of their psychological functioning and various dynamic and static predictor variables. Multiple regression analyses indicated that between 48% and 73% of the variance in the four indicators of psychological functioning (depression, anxiety, posttraumatic stress, and self-esteem) was accounted for with the predictors. Dynamic variables including frequent rumination of why the offence occurred, shame-proneness, perceived control, and coping strategies were consistently more strongly related to outcome measures than the static variables. These findings provide a basis for optimism regarding clinical and justice system interventions with people who have experienced sexual offences, since dynamic factors are inherently modifiable. Practical implications that allow justice and clinical management efforts to focus on the high-impact areas identified in this research are discussed. Current psychological functioning did not differ between victims who had reported their offences to the police and those who had not, though several key themes were identified by victims in terms of therapeutic and anti-therapeutic elements of the Justice System process. From a therapeutic jurisprudence perspective, these experiences are valuable in being able to guide those who work with victims of sexual offences within the Justice System. Further, reasons why some participants reported their victimisation to the police and others did not, along with participants’ personal definitions of justice, may provide useful indications as to how the justice system may better meet the needs of victims of sexual offences

    A quantitative, pooled analysis and systematic review of controlled trials on the impact of electrical stimulation settings and placement on pressure ulcer healing rates in persons with spinal cord injuries

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    Pressure ulcers (PrUs) are among the most common secondary complications following spinal cord injury (SCI). External electrical current applied to a wound is believed to mimic the body's natural bioelectricity and to restart and stimulate endogenous electrical fields to promote wound healing. A systematic review was conducted to critically appraise and synthesize updated evidence on the impact of electrical stimulation (ES) versus standard wound care (comprising cleansing, dressing, nutrition, and debridement as necessary) and/or sham stimulation on PrU healing rates in persons with SCIs. Medline, Embase, the Cumulative Index for Nursing and Allied Health Literature (CINAHL), PsycINFO, and Cochrane Central were searched using the terms spinal cord injury, electrical stimulation, and pressure ulcer in free text and MESH terms. Publications were limited to peer-reviewed, randomized controlled trials (RCTs) and non-RCTs (CCTs) published in English from 1985 to 2014. The methodological quality of the RCTs was evaluated using the Jadad scale; CCTs were assessed using the Downs and Black tool. Pooled analyses were performed to calculate the mean difference (MD) for continuous data, odds ratio (OR) for dichotomous data, and 95% confidence intervals (CI). A total of 8 trials were reviewed - 6 RCTs and 2 CCTs included a total of 517 SCI participants who had at least 1 PrU. The number of patients per study ranged from 7 to 150 and the number of wounds from 7 to 192. Comparison models included ES irrespective of current type and placement of electrodes against sham/no ES (7 trials), ES delivered by electrodes overlaid on the ulcer versus sham/no ES (4 trials), ES delivered by electrodes placed on intact skin around the ulcer versus sham/no ES (4 trials), ES delivered by electrodes overlaid on the wound bed versus placed on intact skin around the ulcer (1 trial), ES with pulsed current versus sham/no ES (6 trials), ES with constant current versus sham/no ES (2 trials), pulsed current ES versus constant current ES (1 trial), number of PrUs closed (2 trials), and incidence of PrU worsened by ES versus sham/no ES (2 trials). The overall quality of studies was moderate; 2 trials were rated as good quality, 2 were poor quality, and 4 were moderate. Evidence showed ES increased the rate of PrU healing in patients with SCI (MD 4.97, 95% CI 1.97-7.98, P = 0.00; N = 7 studies and 559 ulcers), and a higher proportion of ulcers healed (OR 2.68, 95% CI 1.17-6.14, P = 0.02; N = 2 studies and 226 ulcers). The data suggest pulsed current ES increased the healing rate (MD 6.27, 95% CI 2.77-9.78, P = 0.0005; N = 6 studies and 509 ulcers) more than constant current (MD 4.50, 95% CI 1.19-10.18, P = 0.12; N = 2 studies and 200 ulcers). In addition, wounds with electrodes overlaying the wound bed seemed to heal ulcer faster than wounds with electrodes placed on intact skin around the ulcer. Future preclinical, in vivo models and clinical trials examining the impact of electrodes configuration for PrU healing are warranted

    Do electrical stimulation enhance pressure ulcer healing in people living with spinal cord injuries: a meta-analysis and systematic review of randomised and non-randomised controlled trials

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    Aim: To quantitatively analyse the effect of ES on PrU healing compared with standard wound care (SWC) and/or sham stimulation. Method: Review was limited to peer-reviewed studies published in English from 1970 to May 2014. Studies included randomized controlled trials (RCTs) and non-RCTs. Methodological quality was assessed using established instruments. Pooled analyses were performed to calculate mean difference (MD) for continuous data, odds ratio (OR) for dichotomous data. Results / Discussion: Eight prospective controlled studies were reviewed, five studies were RCTs, and three studies were non-RCTs. Pooled analyses of eight trials showed ES significantly improved daily healing rate (MD 0.89, 95% CI 0.23-1.55, p=0.008) with significant heterogeneity. Pulsed current ES significantly improved daily healing rates compared with constant direct current (DC) or alternating current (AC) in two trials (MD 1.50, 95% CI 0.62, 2.39, p=0.0009, I2=81%). Pooled analysis of two trials showed significant higher numbers of ulcer healed (OR 2.95, 95% CI 1.69–5.17, p=0.0002, I2=0%) with ES treatment. There was a trend towards less number of ulcer worsened with ES treatment (OR 0.38, 95% CI 0.12–1.24, p=0.11, I2=18%).intervals (CI). Conclusion: ES can significantly enhance PrU healing in SCI according to limited level I evidence. Pulsed current ES may confer better benefit on PrU healing than DC or AC. Electrodes placed on wound bed maybe superior to those applied on the intact skin

    Study of the normal fecal bacterial flora of man

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    Space flight effect on normal fecal bacterial flora of ma
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