11 research outputs found

    Determining of factors influencing the success and failure of hospital information system and their evaluation methods: A systematic review

    Get PDF
    Background: Nowadays, using new information technology (IT) has provided remarkable opportunities to decrease medical errors, support health care specialist, increase the efficiency and even the quality of patient's care and safety. Objectives: The purpose of this study was the identification of Hospital Information System (HIS) success and failure factors and the evaluation methods of these factors. This research emphasizes the need to a comprehensive evaluation of HISs which considers a wide range of success and failure factors in these systems. Materials and Methods: We searched for relevant English language studies based on keywords in title and abstract, using PubMed, Ovid Medline (by applying MeSH terms), Scopus, ScienceDirect and Embase (earliest entry to march 17, 2012). Studies which considered success models and success or failure factors, or studied the evaluation models of HISs and the related ones were chosen. Since the studies used in this systematic review were heterogeneous, the combination of extracted data was carried out by using narrative synthesis method. Results: We found 16 articles which required detailed analysis. Finally, the suggested framework includes 12 main factors (functional, organizational, behavioral, cultural, management, technical, strategy, economy, education, legal, ethical and political factors), 67 sub factors, and 33 suggested methods for the evaluation of these sub factors. Conclusions: The results of the present research indicates that the emphasis of the HIS evaluation moves from technical subjects to human and organizational subjects, and from objective to subjective issues. Therefore, this issue entails more familiarity with more qualitative evaluation methods. In most of the reviewed studies, the main focus has been laid on the necessity of using multi-method approaches and combining methods to obtain more comprehensive and useful results

    The effect of fresh frozen plasma in severe closed head injury

    Get PDF
    Objective: Traumatic brain injury (TBI) is one of the most common causes of morbidity and mortality. Coagulopathy, commonly occurring after severe TBI, is associated with poor outcome and secondary complications, especially delayed traumatic intracerebral hematoma (DTICH). In this study we evaluated the effect of fresh frozen plasma (FFP) on the reduction in the incidence of DTICH in severe closed head injury victims. Methods: This study was carried out as a double-blind randomized clinical trial. Ninety patients were entered in two parallel groups taking either FFP or normal saline (N/S). Patients' selection criteria for both groups were: severe closed head injury (Glasgow coma scale �8), no mass lesion required evacuation and no history of coagulopathy. The clinical findings, laboratory data, computed tomography (CT) scans and Glasgow outcome scale after 1 month were assessed and compared in two groups. Results: Out of 90 patients, 44 received FFP and 46 received N/S. The development of new intracerebral hematoma in follow-up CT scans were more common in the FFP group than the N/S group (p = 0.012). Both groups showed similar frequency of poor outcome (p = 0.343). The mortality was significantly more common in the FFP group than in the N/S group (63 versus 35, p = 0.006). Conclusion: The result of this study revealed that early empirical infusion of FFP in patients with severe head injury may lead to adverse effects, such as an increase in the frequency of DTICH and an increase in the mortality. © 2006 Elsevier B.V. All rights reserved

    The effects of poly L-lactic acid nanofiber scaffold on mouse spermatogonial stem cell culture

    Get PDF
    Introduction: A 3D-nanofiber scaffold acts in a similar way to the extracellular matrix (ECM)/basement membrane that enhances the proliferation and self-renewal of stem cells. The goal of the present study was to investigate the effects of a poly L-lactic acid (PLLA) nanofiber scaffold on frozen-thawed neonate mouse spermatogonial stem cells (SSCs) and testis tissues. Methods: The isolated spermatogonial cells were divided into six culture groups: (1) fresh spermatogonial cells, (2) fresh spermatogonial cells seeded onto PLLA, (3) frozen-thawed spermatogonial cells, (4) frozen-thawed spermatogonial cells seeded onto PLLA, (5) spermatogonial cells obtained from frozen-thawed testis tissue, and (6) spermatogonial cells obtained from frozen-thawed testis tissue seeded onto PLLA. Spermatogonial cells and testis fragments were cryopreserved and cultured for 3 weeks. Cluster assay was performed during the culture. The presence of spermatogonial cells in the culture was determined by a reverse transcriptase polymerase chain reaction for spermatogonial markers (Oct4, GFRα-1, PLZF, Mvh(VASA), Itgα6, and Itgβ1), as well as the ultrastructural study of cell clusters and SSCs transplantation to a recipient azoospermic mouse. The significance of the data was analyzed using the repeated measures and analysis of variance. Results: The findings indicated that the spermatogonial cells seeded on PLLA significantly increased in vitro spermatogonial cell cluster formations in comparison with the control groups (culture of SSCs not seeded on PLLA) (P�0.001). The viability rate for the frozen cells after thawing was 63.00 ± 3.56. This number decreased significantly (40.00 ± 0.82) in spermatogonial cells obtained from the frozen-thawed testis tissue. Both groups, however, showed in vitro cluster formation. Although the expression of spermatogonial markers was maintained after 3 weeks of culture, there was a significant downregulation for some spermatogonial genes in the experimental groups compared with those of the control groups. Furthermore, transplantation assay and transmission electron microscopy studies suggested the presence of SSCs among the cultured cells. Conclusion: Although PLLA can increase the in vitro cluster formation of neonate fresh and frozen-thawed spermatogonial cells, it may also cause them to differentiate during cultivation. The study therefore has implications for SSCs proliferation and germ cell differentiation in vitro. © 2013 Eslahi et al

    Animal in Nietzsche\'s Philosophy: A Prolegomena to the Naturalisation of Human Values

    No full text
    Articulating his philosophical aims, Nietzsche has exploited animal similes and metaphors (i.e. fables, in a more technical term). It should be noted that he has not stepped on this style with the mere intention of splurge or embellishing his work with tropes but, instead, has reflected upon 'animality' or 'being animal' of human being. However, he considers the animality of humankind as different from the Aristotelian notion of 'rational animal'. Based on the notion of animality in its biological sense, he puts forward a project through which human existence can be linked to Nature. Furthermore, on the basis of the notion of 'animality' borrowed from Nature, he tries to re-define humanity and also restitute its true authentic meaning that is, to naturalise its correlative values. Explaining animality and specifying its place within the Nietzschean system of thought, this paper aims to set forth the animality of humankind in a different way

    A morphometeric magnetic resonance imaging study of age and gender-related volumetric changes of putamen nucleus in healthy humans

    No full text
    Introduction: The purpose of this study was to determine the age, sex, and hemispheric differences in volume of the human putamen nucleus in right-handed healthy humans. Materials and Methods: This study was performed on 120 normal human subjects (60 males, 60 females) 15-65 years old that was divided into young (<40 years) and old (�40 years) groups. The sectional brain images obtained via magnetic resonance imaging was analyzed and processed using the image-J software and the putamen volume was calculated using the Cavalieri's principle. Results: The analyses revealed bilateral age-related shrinkage of the putamen in both sexes and the putamen was significantly smaller in older than younger subjects (P <0.001). The age-related shrinkage of the putamen in men and women was about 20.49 and 16.79, respectively. There were no statistically significant volume differences between males and females. There were significant negative correlations between age and the volumes of the putamen nucleus. In both sexes, a significant rightward asymmetry was observed in the putamen (4.21 in men and 3.32 in women). Conclusion: Bilateral age-related shrinkage and rightward asymmetry of the putamen was found in normal humans and there were no volume differences between men and women. Results provide useful baseline data to the age and sex-related change of the volume of putamen

    Apoptosis signaling pathways in osteoarthritis and possible protective role of melatonin

    No full text
    Osteoarthritis (OA) is a degenerative joint disease characterized by progressive erosion of articular cartilage. As chondrocytes are the only cell type forming the articular cartilage, their gradual loss is the main cause of OA. There is a substantial body of published research that suggests reactive oxygen species (ROS) are major causative factors for chondrocyte damage and OA development. Oxidative stress elicited by ROS is capable of oxidizing and subsequently disrupting cartilage homeostasis, promoting catabolism via induction of cell death and damaging numerous components of the joint. IL-1β and TNF-α are crucial inflammatory factors that play pivotal roles in the pathogenesis of OA. In this process, the mitochondria are the major source of ROS production in cells, suggesting a role of mitochondrial dysfunction in this type of arthritis. This may also be promoted by inflammatory cytokines such as IL-1β and TNF-α which contribute to chondrocyte death. In patients with OA, the expression of endoplasmic reticulum (ER) stress-associated molecules is positively correlated with cartilage degeneration. Melatonin and its metabolites are broad-spectrum antioxidants and free radical scavengers which regulate a variety of molecular pathways such as inflammation, proliferation, apoptosis, and metastasis in different pathophysiological situations. Herein, we review the effects of melatonin on OA, focusing on its ability to regulate apoptotic processes and ER and mitochondrial activity. We also evaluate likely protective effects of melatonin on OA pathogenesis. � 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Lt

    Phytochemical Profile and Antimicrobial Effects of Different Medicinal Plant: Current Knowledge and Future Perspectives

    No full text
    corecore