Getting cited is important for scholars and for the institutions in which they work. Whether because of the influence on scientific progress or because of the reputation of scholars and their institutions, understanding why some articles are cited more often than others can help scholars write more highly cited articles. This article builds upon earlier literature which identifies seemingly superficial factors that influence the citation rate of articles. Three Journal Citation Report subject categories are analyzed to identify these effects. From a set of 2,016 articles in Sociology, 6,957 articles in General & Internal Medicine, and 23,676 articles in Applied Physics, metadata from the Web of Knowledge was downloaded in addition to PDFs of the full articles. In this article number of words in title, number of pages, number of references, sentences in the abstract, sentences in the paper, number of authors and readability were identified as factors for analysis.

A simple mobile app for capturing learning moments shows promise as a tool to support workplace-based learning, especially when combined with coaching sessions. Future research should evaluate these tools on a broader scale and in conjunction with residents' and students' personal digital portfolios.

in plasma vasopressin concentration and plasma osmolality in relation to age and time of day in the male Wistar rat. Acta Endocrinol 1992:126:35 7-62.ISSN 0001-5598The influence of age on several parameters related to water balance was studied in Wistar rats. Plasma AVP concentration and plasma osmolality were increased at midday in 21 -month-old rats as compared with 3-and 4-month-old rats. Daily water intake per 100 g body weight was reduced in 14-and 21\ x=req-\ month-old rats as compared with 3-and 4-month-old rats, but total water intake was unaltered. These results suggest that there is a change in water balance in Wistar rats with age. In order to obtain information about the influence of age on daily fluctuations in plasma AVP concentration and osmolality these parameters were determined in 4-month-old Wistar rats sacrificed at 2 h intervals during the day and in 20-and 31-month-old rats sacrificed at 8 h intervals. Plasma AVP concentrations were low during the light period and high during the dark period in 4-month-old rats. The relationship between plasma osmolality and plasma AVP concentration was dependent on the time of day in 4\ x=r eq-\ month-old-rats, Plasma AVP concentrations were higher at 16.00 than at 08.00 and 24.00 in 20\ x=req-\ month-old rats, and higher at 24.00 than at 08.00 and 16.00 in 31-month-old rats. In contrast to the plasma AVP concentration during the light period, the average daily AVP concentration (average of plasma AVP concentrations at 08.00, 16.00 and 24.00) was increased in 31-month-old rats only. The relationship between plasma osmolality and plasma AVP concentration was not age-related. The results of the present study suggest that there is a circadian rhythm of plasma AVP concentration in Wistar rats which is age-related but which does not fully correlate with plasma osmolality.Reports about the effects of aging on parameters related to fluid balance in rats are inconsistent. For instance, unaltered as well as reduced concentrations of plasma AVP have been found in 30-month-old Fischer-344 rats ( 1, 2 ). In contrast, 3 2-month-old Wistar rats ( 3 ) and 20-23-month-old Long-Evans rats (4) show increased plasma AVP concentrations. The daily urinary excretion of AVP was found to be increased in 3 4-month-old Brown-Norway rats (5). Miller (4) found increases in urine production in 14-and 16-month-old Long-Evans rats, whereas other authors observed increases in urine production in rats at a more advanced age only, if at all ( 5-8 ). However, as these latter studies were performed in other strains of rats, inconsistencies among studies on the influence of aging on the fluid balance in rats may be largely strain-dependent. However, other potentially relevant factors have to do with a circannual rhythm of plasma AVP concentration (2), with the ages of the rats used and with their health status.Data on the effect of aging on water balance in Wistar rats are scarce and have never been verified since the initial study of Fliers and Swaab (3). For instance, data on urine or plasma...

Intracerebroventricular administration of dynorphin-(1-13) inhibits dose-dependently plasma vasopressin level in normal as well as in water-deprived rats, whereas systemic (subcutaneous) administration of this opioid peptide is ineffective in this respect. Simultaneous subcutaneous, but not intracerebroventricular, administration of naloxone prevents the suppressive effect of dynorphin-(1-13) on plasma vasopressin levels.