102 research outputs found

    Selection of Appropriate Technology for Knowledge Acquisition and Application Processes Using Fuzzy AHP (Case Study:Insurance Companies)

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    Knowledge management has created the new era of dramatic changes in managerial discourse. Given that knowledge management does not suffice to know the code and documented alone, many organizations around the world rely on their implicit knowledge and enhance their competitive position in seeking to improve their effectiveness and efficiency. In knowledge management, acquiring and application processes of knowledge are in order to achieve individual and organizational goals. Knowledge management is based on three pillars: people, processes and technology. Between these three factors, technology has created great changes in knowledge management system in the last two decades. Due to the increasing use of information technology in organizations, knowledge management and its use is increasing. Technologies, such as local area networks (LAN), Intranet, Internet, email, databases, and organizations, all have played an important role in knowledge management. On the other hand,capabilities such as more accessible, offering advanced applications and the decreasing cost of computer equipment increased the role of information technology support for knowledge management and it leads to significant improvements in behavior intelligence and knowledge-based organizations and individuals.Further analysis on the emerging technologies such as Internet-based systems, facilitate the distribution of knowledge and knowledge management, But this attitude is that these technologies are indeed anti-knowledge and knowledge management and information may not only lead to the accumulation of knowledge, So knowledge management facing challenges vague and non-systematic. Given that a few studies Has been in the field of knowledge management in insurance companies, In this research we focus on select the most appropriate technology for Knowledge acquisition and application processes in insurance companies and with Offering a perspective on knowledge and manage it, investigate the role of information technology in knowledge management and evaluate and select appropriate technology using fuzzy AHP. Keywords: knowledge management, information technology, technology choice, Fuzzy Analytical Hierarchy Process.

    Periosteal Nerve Block Vs. Intravenous Morphine in Pain Relief of Distal Radius and Ulna Fracture; a Double-Blind Randomized Clinical Trial

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    Introduction: Distal forearm fractures’ realignment and fixation is a painful procedure. This study aimed to compare the efficacy of periosteal nerve block and intravenous morphine in distal radius and ulna fractures’ pain management.   Methods: In the present randomized, parallel, double-blind, controlled clinical trial, patients with distal radius or ulna fractures were divided into two groups. In the first group, for periosteal nerve block, 1% lidocaine was injected at a distance of 6 to 8 cm near the wrist from the lateral radius and medial ulna. In the second group, morphine sulfate at a dose of 0.1 mg/kg was slowly injected through the peripheral vein within 5 minutes. The visual analog scale (VAS) score was evaluated before the intervention and every 15 minutes until 90 minutes after the intervention and was compared between the two groups. Results: 75 subjects were studied (39 in the periosteal nerve block and 36 in the intravenous morphine group). There were no significant differences between the groups in terms of mean age (p = 0.384), gender distribution (p = 0.464), past medical history (p = 0.106), trauma type (p = 0.836), fracture type (p = 0.613), and baseline pain severity on VAS (p = 0.987). Both methods reduced the VAS scores during the 90 minutes of the study. The mean pain scores of the patients in the periosteal nerve block group with 2.56±1.44, 2.15±1.11, 2.66±1.26, and 3±1.27 at 15, 30, 45, and 60 minutes after the analgesic injection, respectively, were significantly lower than those of the intravenous morphine group  with 4.75±1.27, 4.22±1.22, 3.97±1.27, and 4.13±1.35, respectively (p < 0.001 for all comparisons). In the present study, no local or systemic complications were observed in the periosteal nerve block group, while the complications of dyspnea, vomiting, and pruritus were reported by 5.5%, 2.8%, and 2.8%, respectively, in the intravenous morphine group. Moreover, the percentage of need for additional analgesia in the intravenous morphine group was higher than that of the periosteal nerve block group. Conclusion: In the first hour after the intervention, pain reduction in periosteal block was significantly higher than intravenous morphine administration. Also, the incidence of complications and the need for additional analgesia were lower in the periosteal block group compared to intravenous morphine administration

    Urethroscopic Holmium: YAG Laser Ablation of Large Urethral Stone after Two-Stage Urethroplasty

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    Hairball in a urethral diverticulum has rarely been reported. These hairballs are usually formed in the diverticulum coated with a hair bearing epithelium and can lead to urinary obstruction or infection. Using laser is a safe way to ablate such stones

    Studying the factors affecting job satisfaction of employees of Semnan health centers

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    Job satisfaction of employees is one of the most challenging concepts in any organization and is the basis for many of the policies and management strategies to increase productivity and efficiency. It is influenced by many factors including environmental and personal factors, income, nature and social status of the job, organizational prestige, promotion, job security, lack of role ambiguity, and physical job conditions Co-workers. This study was carried out to determine the factors affecting job satisfaction employees of Semnan health center's to meet the challenges and increase efficiency. This is a cross-sectional study carried out in 2013, over 93 employees with a employment history of over 2 years. Method and data collection was through job descriptive inventory (Job Descriptive Index); data was collected and analyzed using SPSS16. The results of questionnaire analysis in seven items regarding job satisfaction, show satisfaction supervision and leadership (77.2%), management policy (77%), job stability (63.4%), environmental conditions (59.6%), cross-relation between Co-workers (58.6%), salary and benefits (53.4%) and opportunities for growth, development and promotion (53.2%). Based on evaluated items, the overall job satisfaction in this study was moderate. Thus, in terms of job satisfaction, it seems that different factors affective in different ratios. Job satisfaction is not only very important by itself, but also important concerning its impact on other aspects of the job attitude. In fact, by increasing job satisfaction, other aspects of job attitudes such as organizational commitment, job involvement and organizational atmosphere can be improved. This point can also be seen in proposed models and research carried out by professionals in this field.

    Dosimetry of Esophageal radiotherapy: a phantom study

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        Esophageal cancer is the eighth most ordinary cancer and the sixth most common cancer between the males and ninth for females in the world; its major and effective treatment is external radiotherapy. This type of cancer can be found in different areas of esophagus including cervical, upper, middle and lower esophagus. In this treatment, healthy tissues such as the trachea, spine and sternum and even thyroid receive dose and it is important that the absorbed doses by these organs be in their tolerance dose levels. We measured the surface and depth doses in an anthropomorphic phantom using thermoluminescent dosimeters. To do so, a target volume was considered in the phantom as a primary esophageal tumor with margins of 5 cm in the distal and proximal, and 3 cm in lateral. Phantom was CT planned and treatment was performed according to patient treatment. The considered measurement locations were Eye, right and left Parotid, left and right Submandibular, left and right Thyroid, Trachea, Manubrium of Sternum and Spine. Our results show that in places located further to primary beam such as Thyroid (phase one), Trachea, Spine and Sternum, the difference between dose from TPS and TLD measurements is observed. In organs which have placed within scattered radiation, the difference is insignificant (P-value≥0.05), although some differences might cause by TLD limitations. In conclusion, the TPS calculated and TL measured doses distinguish significantly at the spine (depth), trachea (depth) and manubrium of sternum especially in phase 1 which might be due to the calculation algorithm used by the planning system which is reliable in homogeneous medium, but TL measurements were performed in the heterogeneous anthropomorphic phantom.

    Clinical significance of circulating tumor cell related markers in patients with epithelial ovarian cancer before and after adjuvant chemotherapy

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    Acknowledgment This study was financially supported by grants from Mashhad University of Medical Sciences (No. 961802) and National Institute for Medical Research Development (NIMAD) (No. 973128).Peer reviewedPublisher PD

    Mapping Factors Affecting IoT Deployment in Storage Sector of Wheat Supply Chain

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    Studies show that there are shortcomings in the deployment of the Internet ofThings (IoT) in the supply chain of agricultural products, especially in thefield of quality control in the logistics sector, and researchers can model theexisting theoretical gaps through modeling and optimization. Therefore, thepurpose of this paper is to identify the most important categories affectingthe deployment of the Internet of Things in the wheat supply chain storagesector and explain and mapping the relationship between these categories.For this purpose, the present article uses meta-synthesis method by searchingWeb of Science and Scopus citation databases. Then, the grounded theorycoding procedures were used to determine categories and themes. Finally,the results of meta-synthesis lead to the identification and extraction of 3macro categories; IoT technology, the main category (IoT-based storage),and the results and consequences of IoT deployment

    IoT Deployment Data Models in the Wheat Supply Chain Storage Section: Using an Action Design Research Approach

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    The supply chain for perishable products, especially agricultural goods, has always been one of the most important and challenging management issues at different times. Because, at all stages of the agricultural production process, unsafe and unsanitary factors may endanger the health of agricultural products. In addition, one of the key problems of the agricultural supply chain is the high volume of products wasted throughout the whole supply chain. For example, in Iran, as a developing country, about 30 of all agricultural products are wasted annually. The high volume of agricultural waste is especially important concerning wheat products as a political and strategic product. The results of some studies show that a large amount of wheat waste in developing countries is due to the widespread use of traditional methods in the storage process. Therefore, the application of emerging technologies such as the Internet of Things (IoT) can be an effective solution to this kind of problem. However, there are shortcomings in the IoT deployment in the supply chain, especially in the logistics sector, and researchers need to cover theoretical gaps in this area through modeling and optimization. Therefore, the present study intends to emphasize this important research issue for the first time in Iran using the Action Design Research approach. The most important findings of this research include the conceptual data model, the logical model of the database, and the physical data model for the IoT deployment in the storage section of the wheat supply chain, which has been designed and validated with the participation of industry and software engineering experts. The models designed in this research can be useful for the implementation of IoT technology in wheat storage centers and food factories. The findings of this study can provide a good guideline for officials and decision-makers to deploying IoT in the field of wheat storage

    Optimization of Water-Energy-Food Nexus considering CO2 emissions from cropland: A case study in northwest Iran

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    Water-Energy-Food (WEF) Nexus and CO2 emissions for a farm in northwest Iran were analyzed to provide data support for decision-makers formulating national strategies in response to climate change. In the analysis, input–output energy in the production of seven crop species (alfalfa, barley, silage corn, potato, rapeseed, sugar beet, and wheat) was determined using six indicators, water, and energy consumption, mass productivity, and economic productivity. WEF Nexus index (WEFNI), calculated based on these indicators, showed the highest (best) value for silage corn and the lowest for potato. Nitrogen fertilizer and diesel fuel with an average of 36.8% and 30.6% of total input energy were the greatest contributors to energy demand. Because of the direct relationship between energy consumption and CO2 emissions, potato cropping, with the highest energy consumption, had the highest CO2 emissions with a value of 5166 kg CO2eq ha−1. A comparison of energy inputs and CO2 emissions revealed a direct relationship between input energy and global warming potential. A 1 MJ increase in input energy increased CO2 emissions by 0.047, 0.049, 0.047, 0.054, 0.046, 0.046, and 0.047 kg ha−1 for alfalfa, barley, silage corn, potato, rapeseed, sugar beet, and wheat, respectively. Optimization assessments to identify the optimal cultivation pattern, with emphasis on maximized WEFNI and minimized CO2 emissions, showed that barley, rapeseed, silage corn, and wheat performed best under the conditions studied.publishedVersio
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