Bitches changed abruptly their maternal behavior on 15th and 16th day of the maternal cycle, following an exchange - on the beginning of 15th day - of some puppies from their own litter for other 2-3 days old puppies. The total time of tactile contact with puppies on days 15 and 16 greatly increased as compared with the 13th and 14th day, i.e., the days immediately preceding the exchange of pup...

OBJECTIVE To investigate the prevalence of vitamin D deficiency among health care professionals working at Hamad Medical Corporation in Doha, Qatar. METHODS Between 15th January 2007 and 15th January 2008, 340 healthy volunteers were included in this study. Each subject completed a diary to determine the duration of sunlight exposure, and vitamin D supplements. Serum levels of 25-hydroxyvitam...

This article aims to study several aspects of the charitable action first Portuguese consort queens (12th-15th centuries).

Small RNAs (sRNAs) are loaded into ARGONAUTE (AGO) proteins to induce gene silencing. In plants, the 5'-terminal nucleotide is important for sRNA sorting into different AGOs. Here we show that microRNA (miRNA) duplex structure also contributes to miRNA sorting. Base pairing at the 15th nucleotide of a miRNA duplex is important for miRNA sorting in both Arabidopsis AGO1 and AGO2. AGO2 favours mi...

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AIM To assess the influence of low frequency magnetic fields on the contents of calcium, magnesium and fluoride in saliva. SUBJECTS AND METHODS Sixty two patients were subjected to magnetic stimulation with low frequency magnetic fields of mean induction 3 microT at the first intervention and 4 microT at the following fourteen ones. Saliva was sampled before magnetic stimulation and after the...

The aim of the study was to establish whether the physicians' strike, which took place in Croatia in 2003, had an impact on the mortality of the population. Mortality data from the National Bureau of Statistics relating to the strike period (15 January - 14 February 2003) were selected and compared with the previous and subsequent periods of the same duration in 2001, 2002 and 2004. Of the 52,5...