Drinking and driving expectancies as a mediator of impulsivity's influence on drinking and driving" (2010).  Finally, we examined the significance of the indirect effect of the impulsivity traits through drinking and driving expectancies on drinking and driving frequency. These results suggest that the association between impulsivity traits and drinking and driving is at least partially media...

Although research has shown that certain aspects of personality can change over time, the determinants of such change remain unclear. Stress alters neural dynamics and precipitates disorders that shape personality traits involving negative affectivity. In this study, therefore, we assessed the perceived stress and pessimism levels of 332 young, middle-aged, and older adults for five weeks to ex...

We have determined the frequency of deletional a-thalassemia in black populations in the USA and Africa that harbor sickle cell anemia. In normals. the frequency of the chromosome bearing a deletion of one of the two normal a gene loci. designated ( -a). ranged from 0.12 to 0.16, and in sickle trait subjects. the frequency ranged from 0.1 8 to 0.20. By contrast. in sickle cell anemia subjects. ...

hepatic dysfunction is a frequent manifestation in patients with sickle cell anemia. it is usually a multifactorial process. a rare benign form of extreme hyperbilirubinemia, presumably due to intrahepatic sickling, may be the cause. we report a 9 year old girl with sickle-thalassemia hemoglo binopathy, presenting with profound jaundice. sickle cell disease is often mild in the iranian populati...

background: sickle cell disease is a genetic disorder of hemoglobin causing myriad of pathology including anemia. the purpose of this study was to evaluate the baseline values of steady state hemoglobin and packed cell volume as a guide to managing the early recognition of hemolytic crises in sickle cell anemia. methods: a cross-sectional study was conducted among the sickle cell patients atten...

ONLY two areas of the world, tropical Africa and New Guinea, are endemic for Burkitt's lymphoma. These are the principal areas of the world where malaria still occurs in hyperand holo-endemic forms, and within these two areas the geographical distribution of the tumour coincides closely with that ofendemic malaria. These observations suggest the possibility of a causal connection between chroni...

The complications of sickle cell disease (SCD) arise from the presence in red cells of the mutated haemoglobin, HbS, which replaces the normal adult Hb,HbA. HbS has a single amino acid substitutionwhereby valine replaces glutamic acid in the 6th codon of the β chain. Most SCD patients inherit two copies of the sickle gene (homozygous HbSS individuals sometimes termed sickle cell anaemia, SCA). ...

HE DIFFERENTIAL AGGLUTINATION METHOD’ of determining I the life-span of the erythrocyte has been applied to the study of sickle cell anemia,2’3 sickle-cell/Hb-C disease46 and pure ( homozygous ) hemoglobin-C disease.7’8 In this way the survival time of sickle cells was found to be shortened whether transfused to normal recipients, to recipients with sickle cell trait. or to recipients with sick...