The presence of living bacteria in some of the deepest parts of the ocean was demonstrated on the Galathea Expedition. Sediment samples taken from the bottom of the Philippine Trench at depths exceeding 10 000 meters were found to contain from 104 to 1Q6 living bacteria per ml. Large bacterial populations were also detected in sediment samples from the floor of the Kermadec-Tonga Trench (6790 t...

examine the duration of restart period that would be needed to recycle to the work force with optimal performance. Based on the results of this study, a second, Phase II, study was conducted between February 26 and October 31, 2010, to examine an additional experimental condition. This technical report presents the design, methods, research findings, and conclusions of the Phase II study. The m...

In the recent years,theprojects developed the studies onwater resources and agriculture, developmentof human societies, the phenomenon of climate change and drought greatest environmental impact,socio-economic and industry in developing and even under developing countries. Results of theseissues showed the effects of mortality and immigration, human and animal species, environmentaldegradation,...

Major proposed changes in drainage control from a large underground mine pool required a detailed assessment of the hydrology, geochemistry, and impacts on the receiving streams. Proposed changes entail relocation of the withdrawal and treatment facilities to an adjoining, but separate watershed and increasing the pumping rate by 35%. Fifteen major and numerous smaller mines in two coal seams c...

Aircraft laser-altimeter surveys over northern Greenland in 1994 and 1999 have been coupled with previously reported data from southern Greenland to analyze the recent mass-balance of the Greenland Ice Sheet. Above 2000 meters elevation, the ice sheet is in balance on average but has some regions of local thickening or thinning. Thinning predominates at lower elevations, with rates exceeding 1 ...

Geostrophic velocity and transport of water in the Drake Passage relative to a newly defined zero reference layer indicate that the circumpolar current is basically north of 59 degrees S, with its axis north 57 degrees S, and that the total volume transport exceeds 200 x 10(6) cubic meters per second. The calculated geostrophic velocities are consistent with results of descriptive water-structu...

UNLABELLED This study examined the determinants of attaining/not attaining 10 000 steps per day among older women. METHODS Daily step counts over 7 days were measured using accelerometry. Self-reported environmental characteristics, self-efficacy, social support and functional limitations were assessed in 128 older women. The presence of areas for activity within 1 km of each participant's re...

A significant problem with most field dental units is that their suction is too weak to effectively remove debris from the mouth. The purpose of this study was to determine the minimum clinically acceptable suction level for routine dentistry. A vacuum pump was connected to a high-volume dental evacuation line in a simulated clinical setting and different suction airflow rates were evaluated by...