background several studies showed that dopamine and norepinephrine improve retention and retrieval of memory. methylphenidate is an enhancer of dopamine and norepinephrine in brain. objectives in the present study, the effect of methylphenidate was evaluated on retention and retrieval of memory in young and aged mice using passive avoidance apparatus. materials and methods animals were divided ...

BACKGROUND Recruitment, willingness to participate, and retention in interventions are indispensable for successful prevention. This study investigated the effectiveness of different strategies for recruiting and retaining low-SES women in depression prevention, and explored which sociodemographic characteristics and risk status factors within this specific target group are associated with succ...

Retaining HIV-diagnosed persons in care is a national priority, but little is known on what intervention strategies are most effective for promoting retention in care. We conducted a systematic search and qualitatively reviewed 13 published studies and three recent conference presentations to identify evidence-informed retention strategies. We extracted information on study design, methods, and...

The Pathobiology of Prediabetes in a Biracial Cohort (POP-ABC) study is a prospective evaluation of incident prediabetes among African American and Caucasian offspring of parents with type 2 diabetes (1). Recruitment occurred over 3.4 years, with metabolic assessments during 2.1–5.5 years of quarterly follow-up. In studies that offer lifestyle intervention or medication, the potential health be...

The taxi aggregator services leverage advantages of digital technologies that connect the provider and consumer. mobile applications facilitate this online connectivity. COVID-19 pandemic has impacted consumption in India due to lockdown. However, demand would be increasing as relaxation progress. Furthermore, duopolistic Indian market is highly competitive. players try hard fulfill for recover...

Working papers are in draft form. This working paper is distributed for purposes of comment and discussion only. It may not be reproduced without permission of the copyright holder. Copies of working papers are available from the author. Please do not copy or distribute without explicit permission of the authors. Abstract Customer defection or churn is a widespread phenomenon that threatens fir...

CONTEXT The superiority of retesting over restudying in terms of knowledge retention and skills acquisition has been proven in both laboratory and classroom settings, as well as in doctors' practice. However, it is still unclear how important retesting strategies are to the learning of relevant factual knowledge in undergraduate medical education. METHODS Eighty students in Years 3-5 of medic...

this research aimed to examine the effect of sequential stimuli technique on acquisition, retention and transfer of ocular motor sequence. first sequential stimuli, time record, response error software was designed. 60 right-handed novices (15-18 years) were divided into five groups (blocked – explicit, blocked – implicit, random – explicit, random-implicit and control). all groups performed a ...