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Biomedical subjects

M M Ayoub

Publications and source records attributed to M M Ayoub.

At least 19 recordsLinked to original sources
PubMed1996

Therapeutic efficacy of povidone-iodine (Betadine) and dichloroxylenol (Septocid) in Holstein cows affected with endometritis and/or cervicitis.

The efficacy of either povidone-iodine (Betadine) or dichloroxylenol (Septocid) intrauterine infusions on the treatment of endometritis and/or cervicitis in cows was examined. One hundred and twelve repeat-breeder Holstein cows (aged 3-7 years) were selected for this study. Rectal and vaginal examinations were applied to detect the signs of endometritis and/or cervicitis. Cows were assigned into two groups: the first group (n = 60) was treated with Betadine solution (0.5%) while the second group (n = 52) was given Septocid (0.1%) administered as intrauterine infusion (100-150 ml). Both treatment were repeated at least two times at 7-day intervals and the cows were rechecked. The responding animals were inseminated 10-12 h after oestrus detection using frozen semen from bulls of proven fertility. The success or failure of treatment was evaluated on the basis of the post-treatment conception rate. The relationship of the body weight of cows, the length of the service period (open days) and the number of previous services with the results of treatment with Betadine or Septocid is discussed. The recovery and conception rates obtained after Betadine treatment were better than those obtained after Septocid. Moreover, healthy cows (> or = 500 kg body weight) and those inseminated before post-partum day 180, having no more than 4-7 previous services, responded well to either Betadine or Septocid treatment.

Animals↗
PubMed1996

Modeling in manual materials handling.

Manual materials handling (MMH) account for approximately $15.0 billion of injuries cost in the United States alone. Because of the need to establish manual handling guidelines, different approaches to achieve this goal were pursued. Such approaches are based on biomechanics, work physiology, and psychophysics. In order to better understand the MMH system's behavior, models were developed. These models can be divided into biomechanical models, physiological models, psychophysically based capacity models, safe load handling models, and simulation models. This paper will present a sample of these models and discusses their advantages and disadvantages.

Biomechanical Phenomena↗
PubMed1993

Thru-knee amputation: the operation of choice for non-ambulatory patients.

Between 1983 and 1990, 32 consecutive patients had 35 thru-knee amputations for ischemia causing infection or gangrene of the lower leg. Twenty-seven patients were nonambulatory, five had limited mobility, and none were considered to be candidates for rehabilitation with a prosthesis after surgery. The average age was 73 years. Thirty-day hospital mortality was 3 per cent. The incidence of complications was low, and healing was achieved in 97 per cent of survivors. One patients required revision to an above-knee amputation. Average postoperative hospital stay was 8.7 days. It is concluded from this study that thru-knee amputation is the treatment of choice in patients with nonsalvageable ischemic legs and in whom ambulation is not planned after operation.

Aged↗
PubMed1991

Psychophysical lifting capacity over extended periods.

The effect of time on an individual's lifting capacity over extended periods using a psychophysical approach was studied. Twelve male subjects estimated their lifting capacity in a 25 min period, and then attempted to lift this weight for an 8 h period under varying conditions. For one experimental condition the subjects were allowed to adjust the weight, the final adjusted maximum acceptable weight of lift (MAWOL) averaged 85.4% of the original MAWOL determined in the 25 min session. The subjects also attempted to lift for an 8 h period, without any weight adjustments. All 12 subjects lasted the 8 h at 2 lifts per min, but at a frequency of 8 lifts per min only three subjects completed the eight hour lifting task. This indicates that the psychophysical approach is a valid method to measure lifting capacity across the lower lifting frequency range but overestimates the lifting capacity at the higher frequency range. Slight fluctuations were noted in heart rate and oxygen consumption which were recorded every hour.

Adult↗
PubMed1989

Blood and component wastage report. A quality assurance function of the hospital transfusion committee.

The transfusion service of a regional referral medical center issues a monthly blood and component wastage report to the Hospital Transfusion Committee. The report includes the amount and type of units wasted, who is responsible, and the cost incurred by the wastage. The individuals responsible for wastage include physicians, nurses, and laboratory personnel. Physicians are responsible for most wastage, principally by failing to administer thawed or pooled blood products. The Hospital Transfusion Committee initiated a wastage-reduction program that included a letter to physicians indicating the patient's name and the type of blood and/or components that the addressed physicians was responsible for wasting. Simple corrective actions results in a 73 percent reduction in our blood and component wastage. Monitoring of blood and component wastage should be routine quality assurance function of the Hospital Transfusion Committee.

Blood Transfusion↗
PubMed1989

Reduction of fresh frozen plasma use with a simple education program.

Fifty-six charts of patients who received 307 units of fresh frozen plasma (FFP) were audited to determine the transfusion practice of this component at our 550-bed regional referral hospital. Forty-six patients (82%) were on the surgical service. Indications for FFP transfusion were poorly documented. Forty-nine patients (87%) lacked evidence of a coagulopathy. An educational program addressing appropriate use of FFP was initiated. Over the course of two years, FFP usage dropped by over 1,000 units annually (46%).

Blood Transfusion↗
PubMed1987

Establishing a physical criterion for assigning personnel to U.S. Air Force jobs.

The Air Force has had problems with personnel being physically unable to perform the tasks within their assigned Air Force Specialty Code (AFSC). An assignment criterion was developed based on a single isoinertial strength score (X1): the incremental 1.83 m lift. The job assignment criterion was developed through three phases of work: Phase I analyzed AFSC tasks; Phase II developed strength/stamina tests; and Phase III established the assignment criteria.

Adult↗