نتایج جستجو برای: epidemiological investigation

تعداد نتایج: 392474  

Journal: :Postgraduate medical journal 1990
F J Roe

It is argued that as the major occupational cancer risks become matters of historical interest, research epidemiologists working in the field should broaden their approaches to encompass life style factors. In the investigation of possible low-cancer risks, it no longer makes any sense to confine their data-collecting activities solely to exposure to dusts and chemicals at work and to regard ex...

Journal: :Applied and environmental microbiology 2001
K Elwin R M Chalmers R Roberts E C Guy D P Casemore

The application of genotyping to clinical isolates of Cryptosporidium has increased significantly our knowledge and understanding of the distribution and epidemiology of this parasite. However, some methods can be laborious and demand specialist technical expertise. PCR-restriction fragment length polymorphism (RFLP) techniques represent a more rapid and simple method of genotyping to support e...

Journal: :Annals of clinical and laboratory science 1978
P M Tierno M Milstoc

The presently accepted method for marking individual strains of Staphylococcus aureus for epidemiological investigation is bacteriophage typing. However, phage typing is not a stable marker and many strains cannot be successfully typed. Serological typing is not readily available and preparation of sera is difficult. The aminopeptidase profile method described by Krawezyk and Huber was used to ...

Journal: :Clinical chemistry and laboratory medicine 2009
Vasco Lança Robert Y L Zee Alicia Rivera Jose R Romero

BACKGROUND There is accumulating evidence from the epidemiological field of telomere biology that telomere length plays an important role in the pathophysiology of cardiovascular disease. The RNA-dependent DNA polymerase, telomerase, is essential in regulating telomere length by acting as a reverse transcriptase. However, the relationship between telomerase activity and telomere length in cardi...

Journal: :Journal of the American Academy of Dermatology 1993
D L Duffy L S Spelman N G Martin

BACKGROUND Occurrence of psoriasis has been found to be strongly genetically controlled in Northern European and U.S. twin and family studies. OBJECTIVE Our purpose was to assess cumulative incidence and heritability of psoriasis in the Australian population. METHODS Australian twins reporting psoriasis on a screening questionnaire received from 3808 pairs were mailed a detailed instrument ...

2015
Daniel Ayalew Ali Matthew Collin Klaus Deininger Stefan Dercon Justin Sandefur Andrew Zeitlin

While multiple studies have shown that a woman’s control over land is positively associated with bargaining power outcomes, few have succeeded in highlighting successful methods for increasing this control. We report on a policy experiment in an unplanned settlement in Dar es Salaam, Tanzania, that provided access to formal land titles to informal settlers at randomized prices, with additional ...

2012
Christiaan Mulder Janneke Harting Niesje Jansen Martien W. Borgdorff Frank van Leth

OBJECTIVES To assess whether public health nurses adhered to Dutch guidelines for tuberculosis contact investigations and to explore which factors influenced the process of identifying contacts, prioritizing contacts for testing and scaling up a contact investigation. METHODS A multiple-case study (2010-2012) compared the contact investigation guidelines as recommended with their use in pract...

Journal: :Gaceta sanitaria 2011
María del Carmen Álvarez-Castillo Jerker Jonsson Dionisio Herrera

OBJECTIVE Area 7 of the autonomous region of Madrid has one of the highest incidences of tuberculosis (23/100,000 population per year 2004). This study aimed to identify tuberculosis control in this area. METHODS A descriptive study of tuberculosis cases diagnosed in area 7 from January 1, 1999 to December 31, 2004 was carried out by analyzing the incidence of tuberculosis and the management ...

Journal: :Thrombosis research 2004
Carla Y Vossen Inez M van Korlaar Mary Cushman Frits R Rosendaal Edwin G Bovill

In clinical research, questionnaires are an important tool available for population and large family studies to gather information on a patient’s medical history. In 1989, we described a large kindred of FrenchCanadian descent with an 8-fold increased risk of venous thrombosis due to the 3363C insertion in the protein C gene [1]. We developed a questionnaire for use in this family to assess gen...

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