BACKGROUND Communication between general practitioners (GPs) and specialists is important, if we want patients to receive the right type of care at the right moment. Most communication takes place through telephone contact, letters concerning information on patients more recently also by email, and joint postgraduate training. As much research has been aimed at the content of communication betw...

Aircraft landing using the Global Positioning System (GPS) in equatorial regions is more difficult than in other regions because ionospheric scintillation is prevalent. Ionospheric scintillation causes amplitude fades of 20 dB or more and an increase in the phase jitter. This research evaluates techniques to enhance a GPS receiver for overcoming ionospheric scintillation. To validate the design...

OBJECTIVES The aim of this study was to investigate general practitioners' (GPs) attitudes, beliefs and behaviours regarding the use of exercise for patients with chronic knee pain (CKP) attributable to osteoarthritis. SETTING Primary care GPs in the UK. PARTICIPANTS 5000 GPs, randomly selected from Binley's database, were mailed a cross-sectional questionnaire survey. OUTCOME MEASURES GP...

With the wide use of GPS, it becomes more and more important to improve the positioning accuracy. The GPS signal is very weak, and can be easily interfered. Space-time adaptive processing(STAP) can suppress the jamming not only in the temporal domain, but also in the spatial domain. STAP has now become a good candidates for jamming mitigation in GPS. In order to evaluate the performance of vari...

BACKGROUND GPs are the health professionals most frequently consulted by adolescents. However, discussion between GPs and adolescents regarding cannabis use does not occur spontaneously. OBJECTIVE To identify obstacles to the identification and management of cannabis use by adolescents based on GPs' experiences. METHODS We conducted a qualitative study using focus groups of GPs from the Auv...

BACKGROUND GPs typically sanction absence from work by issuing sickness certificates. There has been some debate recently about changing the way sickness certificates are issued and by whom. However, without understanding GPs' certification practices, their requirements in terms of training and education and how they feel the certification process should or should not be changed, measures aimed...

In the framework of the GRIM series of gravity field models, the CNES/GRGS GINS precise orbit determination software has been adapted to dynamic GPS data processing. That is simultaneous processing of all available observables (i.e. GPS, DORIS, Laser) and all available satellite orbits (i.e. GPS, TOPEX/POSEIDON) can now be performed. The TOPEX/POSEIDON (T/P) mission satellite is equipped with a...

BACKGROUND Several studies have shown that general practitioners (GPs) under-diagnose common mental disorders, and that training courses hardly improve this practice. The influence of GPs' self-perceived ability to recognize the severity of such disorders on these facts has not been investigated. This study explores: 1) GPs' perceived ability to recognize major depressive episode (MDE) and gene...

OBJECTIVE The aim of this study is to analyse the interaction between patients and GPs in preventive consultations with an emphasis on how patients answer GPs' questions about lifestyle, and the conditions these answers impose on the process of establishing agreement about lifestyle as a problem or not. DESIGN Six general practitioners (GPs) video-recorded 15 annual preventive consultations. ...