Pollinator response to livestock grazing: implications for rangeland conservation in sagebrush ecosystems.

World food supplies rely on pollination, making this plant-animal relationship a highly valued ecosystem service. Bees pollinate flowering plants in rangelands that constitute up to half of global terrestrial vegetation. Livestock grazing is the most widespread rangeland use and can affect insect pollinators through herbivory.

Deep endometriosis transvaginal ultrasound in the workup of patients with signs and symptoms of endometriosis: a cost analysis.

Objective: Deep endometriosis transvaginal ultrasound (DE TVS) is accurate in the detection of ovarian endometriosis and DE; however, realisation of its full potential and utilisation remains variable. As such, patients may require a two-step surgical approach (diagnostic followed by therapeutic laparoscopy) or experience incomplete surgical treatment. Besides the clinical implications, the economic impact of a two-step approach to diagnosis and treatment on the healthcare system is likely to be significant.

Bronchoalveolar lavage cell data in amiodarone-associated pneumonitis. Evaluation in 22 patients.

To assess the value of bronchoalveolar lavage (BAL) for diagnosis, understanding, and treatment of amiodarone-associated pneumonitis, we examined the results of BAL total and differential cell counts and phenotyping of lymphocytes in 22 patients with this lung disorder and in 33 normal subjects. Overall, the total cell count was found to be almost the same as that seen in control subjects; the macrophage population was significantly reduced, and the lymphocyte, neutrophil, and eosinophil populations were increased in absolute number and percentage. When results were analyzed individually, BAL data appeared to be distributed according to two patterns.

Farmer's lung presenting as respiratory failure and homogeneous consolidation.

A 40-year-old woman who worked on a farm and was exposed to moldy hay presented with acute respiratory failure requiring mechanical ventilation and homogeneous radiologic consolidation. Treatment with steroids produced rapid improvement. These features of presentation of hypersensitivity pneumonitis with acute respiratory failure and homogeneous consolidation are rarely encountered.

Electromyographic study of lumbar back muscles during locomotion in acute high decerebrate and in low spinal cats.

The electromyographic (EMG) activity of the lumbar back muscles (multifidus, longissimus and iliocostalis) was investigated during treadmill locomotion in acute high decerebrate and in low spinal cats. During alternate stepping (0.7-2.

Interaction between forced grasping and a learned precision grip after ablation of the supplementary motor area.

Monkeys were trained to compress and release a force transducer held between the thumb and forefinger. Immediately following ablation of the contralateral supplementary motor area a grasp reflex produced a disturbance of the learned precision grip characterized by an increase in mean grasping force, an increase in the rate of prehensile force application and the inability to release the strain gauge. No change was observed in the same learned grip with the ipsilateral hand.

The effects of storage times, temperatures and container types on the accuracy of atomic-absorption determinations of Cd, Cu, Hg, Pb and Zn in whole heparinized blood.

The concentration changes of five different heavy metals in whole blood were tested under a variety of storage conditions. Changes were observed for hourly, daily and weekly periods at four temperatures (-70, -10, 4 and 22 degrees C) and in six different container types, (pyrex and soda glass, two polyethylene, polypropylene, polystyrene and polycarbonate). Rapid, direct-dilution, heated graphite furnace atomic absorption (AA) techniques were developed for analysis of cadmium, copper, lead, and zinc, while mercury was analyzed by the cold vapor flame atomic absorption spectroscopy (FAAS) method.

Perinatal mortality in Southland.

A review of Southland's perinatal mortality was undertaken from 1971 to 1977 and included 237 deaths with a post mortem rate of 90 percent. During this period, the perinatal mortality rate fell to below the national average. Prematurity remains the most important single factor.