22 research outputs found
Various indicators for the assessment of hospitals' performance status: Differences and similarities
Background: Hospitals are the most costly operational and really important units of health system because they consume about 50-89 of total health resources. Therefore efficient use of resources could help in saving and reallocating the financial and physical resources. Objectives: The aim of this study was to obtain an overview of hospitals' performance status by applying different techniques, to compare similarities and differences between these methods and suggest the most comprehensive and practical method of appraisal for managers and policy makers. Patients and Methods: This is a cross sectional study conducted in all hospitals of Ahvaz (eight hospitals affiliated with Jundishapur University of Medical Sciences and eight non-affiliated hospitals) during 2007 to 2011. Two kinds of data were collected through separate special checklists. Excel 2007 and Windeap 2.1 software were applied for data analysis. Results: The present findings show that the average of bed occupancy rate (BOR) in the studied hospitals was about 65.91 ± 1.16. The maximum number of inefficient hospitals in the present study happened in the years 2007, 2008 and 2010 (four hospitals) but there were two hospitals in the third part of the present graph which had maximum level of efficiency and optimal level of productivity in the years 2007 and 2009. Data Envelopment Analysis (DEA) showed that the mean score of technical efficiency for the studied hospitals is 0.924 ± 0.105 with the minimum of 0.585 ± 0.905 for hospital number 1. Furthermore It shows that only five hospitals (31.25) reach complete technical efficiency (TE) scores across all five years of 2007-11 (TE = 1). Conclusions: Results of the present and similar studies should be considered for the future planning and resource allocation of Iranian public hospitals. At the same time it is very important to consider need assessment results for each region according to its potentials, population under the coverage and other geographical and cultural indices. Furthermore because of potential limitations of each of the above models it is highly recommended to apply different methods of performance evaluation to reach a complete and real status view of the hospitals for future planning. © 2014, Iranian Red Crescent Medical Journal; Published by Kowsar Corp
EVALUATION OF MOVING OBJECT DETECTION BASED ON VARIOUS INPUT NOISE USING FIXED CAMERA
Detecting and tracking objects in video has been as a research area of interest in the field of image processing and computer vision.
This paper evaluates the performance of a novel method for object detection algorithm in video sequences. This process helps us to
know the advantage of this method which is being used. The proposed framework compares the correct and wrong detection
percentage of this algorithm. This method was evaluated with the collected data in the field of urban transport which include car and
pedestrian in fixed camera situation. The results show that the accuracy of the algorithm will decreases because of image resolution
reduction
A New Approach to Approximate Solutions of Single Time-Delayed Stochastic Integral Equations via Orthogonal Functions
This paper proposes a new numerical method for solving single time-delayed stochastic differential equations via orthogonal functions. The basic principles of the technique are presented. The new method is applied to approximate two kinds of stochastic differential equations with additive and multiplicative noise. Excellence computational burden is achieved along with a O(h2) convergence rate, which is better than former methods. Two examples are examined to illustrate the validity and efficiency of the new technique
A New Approach to Approximate Solutions of Single Time-Delayed Stochastic Integral Equations via Orthogonal Functions
This paper proposes a new numerical method for solving single time-delayed stochastic differential equations via orthogonal functions. The basic principles of the technique are presented. The new method is applied to approximate two kinds of stochastic differential equations with additive and multiplicative noise. Excellence computational burden is achieved along with a O(h2) convergence rate, which is better than former methods. Two examples are examined to illustrate the validity and efficiency of the new technique
Clinical, immunologic and molecular spectrum of patients with immunodeficiency, centromeric instability, and facial anomalies (ICF) syndrome: A systematic review
Background: Immunodeficiency, centromeric instability and facial dysmorphism (ICF) syndrome is a rare autosomal recessive immune disorder presenting with hypogammaglobulinemia, developmental delay, and facial anomalies. The ICF type 1, type 2, type 3 and type 4 are characterized by mutations in DNMT3B, ZBTB24, CDCA7 or HELLS gene, respectively. This study aimed to present a comprehensive description of the clinical, immunologic and genetic features of patients with ICF syndrome. Methods: PubMed, Web of Science, and Scopus were searched systemically to find eligible studies. Results: Forty-eight studies with 118 ICF patients who met the inclusion criteria were included in our study. Among these patients, 60% reported with ICF-1, 30% with ICF-2, 4% with ICF-3, and 6% with ICF-4. The four most common symptoms reported in patients with ICF syndrome were: delay in motor development, low birth weight, chronic infections, and diarrhea. Intellectual disability and preterm birth among patients with ICF-2 and failure to thrive, sepsis and fungal infections among patients with ICF-1 were also more frequent. Moreover, the median levels of all three immunoglobulins (IgA, IgG, IgM) were markedly reduced within four types of ICF syndrome. Conclusion: The frequency of diagnosed patients with ICF syndrome has increased. Early diagnosis of ICF is important since immunoglobulin supplementation or allogeneic stem cell transplantation can improve the disease-free survival rate
Evaluation of the TLR negative regulatory network in CVID patients
Common variable immunodeficiency (CVID), a clinically symptomatic primary immunodeficiency disease (PID), is characterized by hypogammaglobulinemia leading to recurrent infections and various complications. Recently, some defects in the signaling of TLRs have been identified in CVID patients which led us to investigate the expression of TLR4 and 9 negative regulatory molecules and their upregulation status following their activation. Using TaqMan real-time PCR, SOCS1, TNFAIP3, RFN216, and IRAK-M transcripts among peripheral blood mononuclear cells (PBMCs) were measured with/without TLR4 and 9 activations. TLR4 and 9 were activated by lipopolysaccharide (LPS) and unmethylated CpG-oligodeoxynucleotide (CpG-ODN), respectively. Production of IFN-α and TNF-α cytokines, as a part of the functional response of mentioned TLRs, was also measured using ELISA. Deficient transcripts of IRAK-M and TNFAIP3 in unstimulated PBMCs and lower production of TNF-α and IFN-α after treatments were observed. Upregulation of RFN216 and TNFAIP3 after TLR9 activation was abnormal compared to healthy individuals. Significant correlations were found between abnormal IRAK-M and TNFAIP3 transcripts, and lymphadenopathy and inflammatory scenarios in patients, respectively. It seems that the transcriptional status of some negative regulatory molecules is disturbed in CVID patients, and this could be caused by the underlying pathogenesis of CVID and could involve complications like autoimmunity and inflammatory responses. © 2018, Macmillan Publishers Limited, part of Springer Nature
Evaluation of the TLR negative regulatory network in CVID patients
Common variable immunodeficiency (CVID), a clinically symptomatic primary immunodeficiency disease (PID), is characterized by hypogammaglobulinemia leading to recurrent infections and various complications. Recently, some defects in the signaling of TLRs have been identified in CVID patients which led us to investigate the expression of TLR4 and 9 negative regulatory molecules and their upregulation status following their activation. Using TaqMan real-time PCR, SOCS1, TNFAIP3, RFN216, and IRAK-M transcripts among peripheral blood mononuclear cells (PBMCs) were measured with/without TLR4 and 9 activations. TLR4 and 9 were activated by lipopolysaccharide (LPS) and unmethylated CpG-oligodeoxynucleotide (CpG-ODN), respectively. Production of IFN-α and TNF-α cytokines, as a part of the functional response of mentioned TLRs, was also measured using ELISA. Deficient transcripts of IRAK-M and TNFAIP3 in unstimulated PBMCs and lower production of TNF-α and IFN-α after treatments were observed. Upregulation of RFN216 and TNFAIP3 after TLR9 activation was abnormal compared to healthy individuals. Significant correlations were found between abnormal IRAK-M and TNFAIP3 transcripts, and lymphadenopathy and inflammatory scenarios in patients, respectively. It seems that the transcriptional status of some negative regulatory molecules is disturbed in CVID patients, and this could be caused by the underlying pathogenesis of CVID and could involve complications like autoimmunity and inflammatory responses. © 2018 Macmillan Publishers Limited, part of Springer Natur
Evaluation of the TLR negative regulatory network in CVID patients
Common variable immunodeficiency (CVID), a clinically symptomatic primary immunodeficiency disease (PID), is characterized by hypogammaglobulinemia leading to recurrent infections and various complications. Recently, some defects in the signaling of TLRs have been identified in CVID patients which led us to investigate the expression of TLR4 and 9 negative regulatory molecules and their upregulation status following their activation. Using TaqMan real-time PCR, SOCS1, TNFAIP3, RFN216, and IRAK-M transcripts among peripheral blood mononuclear cells (PBMCs) were measured with/without TLR4 and 9 activations. TLR4 and 9 were activated by lipopolysaccharide (LPS) and unmethylated CpG-oligodeoxynucleotide (CpG-ODN), respectively. Production of IFN-α and TNF-α cytokines, as a part of the functional response of mentioned TLRs, was also measured using ELISA. Deficient transcripts of IRAK-M and TNFAIP3 in unstimulated PBMCs and lower production of TNF-α and IFN-α after treatments were observed. Upregulation of RFN216 and TNFAIP3 after TLR9 activation was abnormal compared to healthy individuals. Significant correlations were found between abnormal IRAK-M and TNFAIP3 transcripts, and lymphadenopathy and inflammatory scenarios in patients, respectively. It seems that the transcriptional status of some negative regulatory molecules is disturbed in CVID patients, and this could be caused by the underlying pathogenesis of CVID and could involve complications like autoimmunity and inflammatory responses. © 2018 Macmillan Publishers Limited, part of Springer Natur
Comparison of clinical and immunological features and mortality in common variable immunodeficiency and agammaglobulinemia patients
Common Variable Immunodeficiency (CVID)and agammaglobulinemia are two of the main types of symptomatic primary antibody deficiencies. The pathogenic origins of these two diseases are different; agammaglobulinemia is a group of inherited disorders that usually are caused by mutations in the gene encoding Bruton Tyrosine Kinase (BTK)protein while CVID is a heterogeneous disorder mainly without monogenic cause. However, both diseases share a characteristic of frequent bacterial infections, a decline in serum immunoglobulin levels, and abnormality in antibody responses. The demographics and immunologic parameters, clinical manifestation, and mortality statistics from 297 patients with CVID and agammaglobulinemia followed up over 2 decades in the Children's Medical Center of Iran. Age at onset of symptom in agammaglobulinemia was earlier than CVID but the course of disease in CVID patients was longer than agammaglobulinemia patients. Pulmonary infections were the most prevalent clinical manifestations in both groups of patients. Lymphadenopathy, hepatomegaly, and splenomegaly were significantly higher in CVID patients than agammaglobulinemia patients and there was a significant association between these complications and mortality in CVID patients. Among 297 patients, 128 patients (88 CVID and 40 agammaglobulinemia)deceased. The predominant causes of death in CVID patients were infections, chronic lung disease, and malignancy while in agammaglobulinemia patients were infections and respiratory failure. Infections, especially respiratory infections were the most common complication and cause of death in both CVID and agammaglobulinemia groups and recent treatment advances even Immunoglobulin replacement cannot completely control these complications. Thus prompt recognition and specific management of these complications are worthwhile. © 2019 European Federation of Immunological Societie