James Pappas

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Under appropriate culture conditions, bone marrow (BM)-derived mesenchymal stem cells are capable of differentiating into diverse cell types unrelated to their phenotypical embryonic origin, including neural cells. Here, we report the successful generation of neural stem cell (NSC)-like cells from BM-derived human mesenchymal stem cells (hMSCs). Initially,(More)
STUDY OBJECTIVE The objectives of this study are to elicit and document descriptions of emergency physician expertise, to characterize cognitive differences between novice and expert physicians, and to identify areas in which novices' skill and knowledge gaps are most pronounced. The nature of the differences between novices and experts needs to be explored(More)
Studies that accurately identify myocardial infarction (MI) and stroke within populations would provide valuable epidemiological information as well as data on vascular disease prevention. We performed a pilot study to assess the feasibility of adding MI surveillance to an ongoing population-based stroke surveillance study, the Brain Attack Surveillance in(More)
Our recent observations (1) that there is a difference in circadian patterns of plasma cortisol levels between male and female macaques and (2) that after gonadectomy these differences in the patterns and in the levels of cortisol were reduced prompted us to investigate how 17 beta-estradiol (E2) and progesterone affect cortisol secretion in orchidectomized(More)
Automated cell counters are widely used in modern clinical laboratories to provide reliable, fast, and cost-effective complete blood counts (CBCs), white blood cell differentials, and reticulocyte measurements. In addition, some advanced instruments provide novel parameters, such as the hemoglobin content of reticulocytes or the percentage of hypochromic(More)
Ascitic fluid infection probably results from repeated episodes of bacteremia and seeding of ascitic fluid. The outcome of these episodes of colonization is probably a function of serum and ascitic fluid defense mechanisms and the virulence of the organism. Patients who develop spontaneous bacterial peritonitis may have serum and ascitic fluid(More)
BACKGROUND/AIMS Cirrhotic patients with spontaneous bacterial peritonitis show a marked activation of the cytokine cascade, and cytokines induce the synthesis of nitric oxide in vitro. Our aim was to assess whether patients with ascitic fluid infection show increased levels of nitric oxide, and whether this is related to the development of renal impairment.(More)
This paper compared the attachment injury resolution process in two distressed couples undergoing ten sessions of Emotional Focused Therapy (EFT), a short-term empirically validated treatment for relational distress. An attachment injury is a newly coined clinical construct that denotes a specific type of betrayal within the couple's relationship. The(More)
OBJECTIVE Demonstrate the relationship between employee engagement and workplace safety for predicting patient safety culture. INTRODUCTION Patient safety is an issue for the U.S. health-care system, and health care has some of the highest rates of nonfatal workplace injuries. Understanding the types of injuries sustained by health-care employees, the(More)
In vitro susceptibilities of 369 to 966 bacterial isolates from periodontal lesions to eight antibiotics were determined by agar dilution technique as a means of determining which antimicrobial agents were inhibitory for bacteria frequently associated with destructive periodontal diseases. Although most bacteria were relatively susceptible to the(More)