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1.
This paper describes and analyzes a proposed solution of fundamental limitative factor of teleradiology to overcome the teleradiology usages problems in underdeveloped and developing countries. The goal is to achieve a very simple and cost-efficient way to take advantage of teleradiology in anywhere even in remote and rural areas. To meet the goal of this study, the following methodology which is consists of two main procedures was done: (1) Using a digital camera in order to provide a digital image from radiographs. (2) Using an image compression tool in order to compress digital images. The results showed that there is no significant difference between digital images (non-compress and compress images) and radiographic films. Also, there was a logic relationship between the diagnostic quality and diagnostic accuracy. Since the maximum percent of diagnostic accuracy can be seen among “Good” quality images and the minimum to was related “Poor”. The results of our study indicate that a digital camera could be utilized to capture digital images from radiographic films of chest x-ray. To reduce the size of digital images, a lossy compression technique could be applied at compression percent of 50 or less without any significant differences. The compressed images can be sent easily by email to other places for consultation and also they can be stored with a smaller size. 相似文献
2.
Najmabadi H Nishimura C Kahrizi K Riazalhosseini Y Malekpour M Daneshi A Farhadi M Mohseni M Mahdieh N Ebrahimi A Bazazzadegan N Naghavi A Avenarius M Arzhangi S Smith RJ 《American journal of medical genetics. Part A》2005,(2):132-137
Hereditary hearing loss (HHL) is a very common disorder. When inherited in an autosomal recessive manner, it typically presents as an isolated finding. Interestingly and unexpectedly, in spite of extreme heterogeneity, mutations in one gene, GJB2, are the most common cause of congenital severe-to-profound deafness in many different populations. In this study, we assessed the contributions made by GJB2 mutations and chromosome 13 g.1777179_2085947del (the deletion more commonly known as del (GJB6-D13S1830) that includes a portion of GJB6 and is hereafter called Delta(GJB6-D13S1830)) to the autosomal recessive non-syndromic deafness (ARNSD) genetic load in Iran. Probands from 664 different nuclear families were investigated. GJB2-related deafness was found in 111 families (16.7%). The carrier frequency of the 35delG mutation showed a geographic variation that is supported by studies in neighboring countries. Delta(GJB6-D13S1830) was not found. Our prevalence data for GJB2-related deafness reveal a geographic pattern that mirrors the south-to-north European gradient and supports a founder effect in southeastern Europe. 相似文献
3.
4.
Mahdieh Arian Mohsen Soleimani Mohammad Bagher Oghazian 《Journal of Professional Nursing》2018,34(5):389-399
Objectives
The present study seeks to answer the following two questions: Are nurse educators satisfied with their job? What are the factors affecting job satisfaction in nurse educators?Background
Nurse educators' job satisfaction has a significant role in the efficiency and performance of nursing schools. Identifying the factors affecting job satisfaction in nurse educators is essential to improving their quality of work and ultimately training efficient students and nurses.Evaluation
The present systematic review searched databases including PubMed, Medline, Cochrane Library, Scopus, Web of Science, Science Direct, ProQuest, Google Scholar and SID for articles published up to April 24, 2018, using keywords including Nurse Teachers, Nurse Faculty, Academic Nurses, Nurse Educators, Dis/Satisfaction, Work, Career, Professional, Practice and Job. Of the total of 971 articles extracted, only 74 remained for the final analysis after the qualitative assessment.Key issue
The articles included in the analysis investigated the relationship between job satisfaction and its contributing factors rather than providing an accurate report on job satisfaction. Nonetheless, a number of the articles had reported fairly to very favorable levels of job satisfaction. The factors affecting nurse educators' job satisfaction were categorized into six levels, including personal, organizational, managerial, academic, professional and economic levels.Conclusion
Although job satisfaction was reported relatively well in the nurse educators, this condition depends on several indices. The lack of positive steps toward job satisfaction in nurse educators leads to destructive behaviors and turnover intentions; meanwhile, it is satisfied educators who can train competent nurses. 相似文献5.
Mohammad Akrami Kim Craig Mahdieh Dibaj Akbar A. Javadi Abdelmalek Benattayallah 《Journal of medical engineering & technology》2013,37(7):546-552
AbstractA three-dimensional hip model was created from the MRI scans of one human subject based on constructing the entire pelvis and femur. The ball and socket joint was modelled between the hip’s acetabulum and the femoral head to analyse the multiaxial loads applied in the hip joint. The three key ligaments that reinforce the external surface of the hip to help to stabilise the joint were also modelled which are the iliofemoral, the pubofemoral and ischiofemoral ligaments. Each of these ligaments wraps around the joint connection to form a seal over the synovial membrane, a line of attachment around the head of the femur. This model was tested for different loading and boundary conditions to analyse their sensitivities on the cortical and cancellous tissues of the human hip bones. The outcomes of a one-legged stance finite element analysis revealed that the maximum of 0.056?mm displacement occurred. The stress distribution varied across the model which the majority occurring in the cortical femur and dissipating through the cartilage. The maximum stress value occurring in the joint was 110.1?MPa, which appeared at the free end of the proximal femur. This developed finite element model was validated against the literature data to be used as an asset for further research in investigating new methods of total hip arthroplasty, to minimise the recurrence of dislocations and discomfort in the hip joint, as well as increasing the range of movement available to a patient after surgery. 相似文献
6.
Lawsone (2-hydroxynaphthalene-1,4-dione) is a natural product which shows significant biological activity. Aminomethylnaphthoquinone Mannich bases derived from lawsone constitute an interesting class of naphthoquinones and/or their metal complexes have demonstrated a series of important biological properties. So, this review aimed to document the publications concerning the synthesis of aminomethylnaphthoquinone Mannich bases from lowsone, aldehydes and amines and their metal complexes using different conditions, and investigation of their applications.Lawsone (2-hydroxynaphthalene-1,4-dione) is a natural product which shows significant biological activity. 相似文献
7.
Abdoulhossein Davoodabadi Mahdi Mohammadzadeh Mahdieh Amirbeigi Hoda Jazayeri 《中华创伤杂志(英文版)》2015,18(4):235-237
Intrauterine contraceptive device (IUCD) is relatively safe but still with some serious risks. Uterus
perforation is rare and would be fatal. A case of Cu-7 IUCD invading into the sigmoid colon through
uterine perforation caused by a pelvic blunt trauma was presented. Our case showed that uterus
perforation by an IUCD could induce utero-sigmoid fistula which is likely to be missed. Imaging is
required when the patients with IUCD present abdominal pain, particularly with a history of trauma. 相似文献
8.
Nosocomial infections are one of the major health problems that increase mortality. Pseudomonas aeruginosa is one of the important causes of nosocomial infections. This bacterium has a gene called the lasB gene, the product of which is a zinc-dependent metalloprotease. This gene plays a central role in the pathogenesis of Pseudomonas spp. This pathogen is highly toxic and destroys tissues and also has a moderating effect on the immune system; on the other hand, it initiates the intracellular pathway of biofilm growth. Although there are methods such as molecular methods for identifying the lasB gene, due to the high cost and the need for specialized personnel, it is necessary to replace them with an appropriate method. In this study, a gold nanoparticle-based DNA diagnostic sensor sensitive to the aggregation states of gold nanoparticles was used to identify amplified and non-amplified lasB genes. The results of the experiment were evaluated both visually and spectrally. The minimum detection value of this method was 10 ng of the amplified lasB gene and 50 ng of the non-amplified lasB gene. This method is very fast, simple, easy and low cost.In this study, a gold nanoparticle-based DNA diagnostic sensor that is sensitive to the aggregation states of gold nanoparticles was used to identify the amplified and non-amplified lasB gene. 相似文献
9.
Aquaporins are water selective channels which play important roles in cell volume regulation during the transmission of spermatozoa to female tract. This study investigated the expression of aquaporin3 and determined the role of aquaporins in human sperm motility and mitochondrial membrane potential (MMP). RT-PCR and flow cytometry analysis were done to investigate aquaporin3 expression levels, and immunolocalisation of aquaporin3 in the spermatozoa was detected using immunocytochemical analysis. The sperm suspension was divided into four groups of spermatozoa: (a) Spermatozoa at 0 hr, (b) spermatozoa in control group, (c) spermatozoa treated with HgCl2 (as an aquaporin inhibitor) and (d) spermatozoa treated with HgCl2+ and 2-mercaptoethanol. The sperm samples were examined in terms of sperm motility and mitochondrial membrane potential. Results confirmed aquaporin3 expression in human spermatozoa and immunocytochemistry results showed an intense immunoreactivity in whole sperm tail. After 60 min, HgCl2 showed a significant decrease in motility and MMP compared to the control group. At this time point, 2-mercaptoethanol in the HgCl2+ 2-mercaptoethanol group reversed the effects of HgCl2 as compared to the HgCl2 group. Present study showed the expression and immunolocalisation of AQP3 in human spermatozoa and the potential role of AQPs in the sperm motility and MMP. 相似文献
10.
Azadeh Manayi Mahdieh Kurepaz-mahmoodabadi Ahmad R Gohari Yousef Ajani Soodabeh Saeidnia 《Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences》2014,22(1)