نتایج جستجو برای: return visits

تعداد نتایج: 117356  

2009
Bruno Gonçalves José J. Ramasco

We perform an analysis of the way individual users navigate in the Web. We focus primarily in the temporal patterns of they return to a given page. The return probability as a function of time as well as the distribution of time intervals between consecutive visits are measured and found to be independent of the level of activity of single users. The results indicate a rich variety of individua...

2013
Norma C. Ware Monique A. Wyatt Elvin H. Geng Sylvia F. Kaaya Oche O. Agbaji Winnie R. Muyindike Guerino Chalamilla Patricia A. Agaba

BACKGROUND The rollout of antiretroviral therapy in sub-Saharan Africa has brought lifesaving treatment to millions of HIV-infected individuals. Treatment is lifelong, however, and to continue to benefit, patients must remain in care. Despite this, systematic investigations of retention have repeatedly documented high rates of loss to follow-up from HIV treatment programs. This paper introduces...

Journal: :Transfusion 2006
Bruce H Newman Daniel T Newman Raffat Ahmad Arthur J Roth

BACKGROUND Some blood donation-related adverse events (AEs) can negatively impact the blood donor return rate (BDRR) and decrease donor retention. STUDY DESIGN AND METHODS One-thousand randomly selected whole-blood donors were interviewed 3 weeks after a 525-mL index whole-blood donation for seven AEs. The number of return visits and duration of follow-up were recorded for each of the 1000 do...

Journal: :Pediatric emergency care 2015
Polly Y Gipson Prachi Agarwala Kiel J Opperman Adam Horwitz Cheryl A King

OBJECTIVE Despite the high prevalence of psychiatric emergency (PE) visits for attempted suicide and nonsuicidal self-injury (NSSI) among adolescents, we have limited information about assessment tools that are helpful in predicting subsequent risk for suicide attempts among adolescents in PE settings. This study examined the predictive validity of a highly promising instrument, the Columbia-Su...

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