Background and Objectives: The key factor that enables osteoblastic activity and the formation of new bone, as well as gingiva, during orthodontic tooth extrusion (OE) is the periodontal ligament.The reaction of periodontal tissues associated with changes in the gingiva is a part of orthodontic tooth displacement.The aim of this study was to examin
Hydroacoustic methods and tools for fish stock assessment and fishery maintenance Part 2. Methods and tools of fishery biohydroacoustics
Studies on influence of hydroacoustic fields on behaviour of commercial species and using of hydroacoustic tools for management of fish and squids behavior to increase the fishing efficiency are overviewed.The methods and means of fisheries biohydroacoustics are considered critically and the reasons of their unsatisfactory using in fishery are anal
The ecology of medical care in Beijing.
BACKGROUND: We presented the pattern of health care consumption, and the utilization of available resources by describing the ecology of medical care in Beijing on a monthly basis and by describing the Party Games socio-demographic characteristics associated with receipt care in different settings.METHODS: A cohort of 6,592 adults, 15 years of age