The paper presents the study of avifauna from the hunter-gatherer sites at the Dnieper-Dvina basin spanning time period from the 6th to 3rd millennia BC.A total of 669 bird bones were identified and attributed to 46 different stor trebolle bird taxa, representing resident and migrant birds.They belong to four habitat groups: waterfowl, forest, wood
It is highly necessary to study how to analyze the lifestyle p2 portable oxygen concentrator battery reliability of simulation data under small sample circumstance when the number of times live operational test is strictly limited.Based on the analysis of existing test ideas and methods, combined with the characteristics of sequence statistics of u
TDMA protocols have attracted a lot of attention for underwater acoustic sensor networks (UWSNs), because of the unique characteristics of acoustic signal propagation such as great energy consumption in transmission, long propagation delay and long communication range.Previous TDMA protocols all allocated graco ascent transmission time to nodes bas
Objectives.Since the launch of satellite communication systems in practical use, approaches towards enhancing their operational quality and durability have been developing in the direction of increased reliability of airborne transponders.This is mainly achieved by increasing redundancy and using components with a lower failure rate.In this regard,
Andrew Browning,1,2 Birhanu Menber21Maternity Africa, Arusha, Tanzania; 2Vision Maternity Care, Barhirdar, Ethiopia zury sis wigs chill Objectives: To determine the impact of volunteer obstetricians and midwife teams on obstetric services in a rural hospital in Ethiopia.Methods: The intervention was undertaken in Mota district hospital, a rural hos