in this paper a practical method for tropospheric effects on gps derived coordinates in absolute mode is presented. gps observations at the permanent gps stations can be used as source of information for the modeling. the developed model is a time-dependent model and as such differs from usual tropospheric models, which are based on atmospheric parameters, i.e. temperature, pressure and humidit...

Abstract: The availability of GLONASS would bring significant benefits to geodetic applications of global positioning systems. GPS and GLONASS observations could be combined directly in the data processing; as a result, the geometry of observed satellites could be enhanced by increasing the number of available satellites. Up to now, with the recent revitalization of GLONASS, more high precision...

OBJECTIVE We aim to describe medical services provided by Nordic general practitioners (GPs), and to explore possible differences between the countries. DESIGN AND SETTING We did a comparative analysis of selected data from the Nordic part of the study Quality and Costs of Primary Care in Europe (QUALICOPC). SUBJECTS A total of 875 Nordic GPs (198 Norwegian, 80 Icelandic, 97 Swedish, 212 Da...

GPS (Global Positioning System) has a variety of applications among which real-time tracking finds significance in day-to-day life. GPS tracking is defined as the measurement of object position and orientation in a given coordinate system using GPS data at different points of time. GPS data are collected from GPS receivers attached to the moving objects and these data are used for tracking obje...

141 questionnaires were posted to GPs randomly selected in the Mid-West. 103 responses were received. 32 GPs (31%) strongly agreed and 65 GPs (63%) agreed that antibiotics are over used in general practice. 35 GPs (34%) felt under pressure to prescribe an antibiotic at least once a day. 41 GPs (40%) agreed that delayed prescriptions are a safe prescribing strategy. 53 GPs (51%) agreed that dela...

The Global Positioning system (GPS) is used for navigation and associated tasks in wide variety of applications. One of the primary modes of GPS operation is differential GPS. Differential GPS allows more accurate positioning than stand-alone GPS. Many new applications are possible because of the increased accuracy obtained through differential GPS. In this paper the techniques and methods of d...