58 research outputs found

    Lavender and the Nervous System

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    Lavender is traditionally alleged to have a variety of therapeutic and curative properties, ranging from inducing relaxation to treating parasitic infections, burns, insect bites, and spasm. There is growing evidence suggesting that lavender oil may be an effective medicament in treatment of several neurological disorders. Several animal and human investigations suggest anxiolytic, mood stabilizer, sedative, analgesic, and anticonvulsive and neuroprotective properties for lavender. These studies raised the possibility of revival of lavender therapeutic efficacy in neurological disorders. In this paper, a survey on current experimental and clinical state of knowledge about the effect of lavender on the nervous system is given

    Generation of motor neurons from human amygdala-derived neural stem-like cells

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    Objective(s): Among several cell sources, adult human neural stem/progenitor cells (hNS/PCs) have been considered outstanding cells for performing mechanistic studies in in vitro and in vivo models of neurological disorders as well as for potential utility in cell-based therapeutic approaches. Previous studies addressed the isolation and culture of hNS/PCs from human neocortical and hippocampal tissues. However, little data are available on hNS/PCs obtained from the adult human amygdala.Materials and Methods: The present study explored the capacity of the amygdala harvested from resected brain tissues of patients with medically refractory epilepsy to generate neurosphere-like bodies and motor neuron-like cells.Results: Although the proliferation process was slow, a considerable amount of cells was obtained after the 3rd passage. In addition, the cells could generate motor neuron-like cells under appropriate culture conditions. Conclusion: Isolation and culture of these cells enable us to improve our knowledge of the role of the amygdala in some neurological and psychological disorders and provide a novel source for therapeutic cell transplantation

    Analysis of security threats on the computer networks of organizations with regard to futures studies (Case Study the Air Defense Headquarter of I.R.I.A)

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    Futures studies are a new knowledge that can lead to economic, defence, military and social efficiency. The nature of technology is changing and the speed of this change is greater than any other time at present. Future studies are a planning tool which will determine the possibility of technology creation and its impact in achieving the desired future. The purpose of this paper is to identify security threats in the field of internal data network of the Air Defense Headquarter of I.R.I.A, using the future wheel method and integrating this method with expertise panel and mind meetings. Using the panel of experts 78 security threats were identifying that by using the ranking and determining, the value of the threats, the 44 threatening and effective threats were determined. In the following, a questionnaire was prepared to examine the value of each of the threatening factors. Threat and using the friedman model and based on likert scale, among the 44 the security threats, the categories of threats that gained the score of less than from the mean were selected as the low priority of the elimination and the number of 20 factors that assigned a higher score than the mean. Finally, using the future software of Mic - Mac and by using the cross - matrix analysis method, the 7 number of factors has an influential role as the most important threats

    Synthesis of PES membrane using amino functionalized magnetic iron nanoparticles for nanofiltration of RG19 dye wastewater

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    In the present study, a mixed matrix nanofiltration membrane was prepared by blending magnetic Fe3O4 and amino-functionalized Fe3O4 (Fe3O4-APTES) nanoparticles into polyethersulfone (PES) matrix. To achieve this purpose, Fe3O4 and Fe3O4-APTES nanoparticles were introduced into PES matrix using phase inversion technique. Scanning electron microscopy (SEM), water contact angle and overall porosity technique were used to investigate the effect of Fe3O4 and Fe3O4-APTES nanoparticles on membrane morphology and hydrophilicity. The effect of Fe3O4 and Fe3O4-APTES nanoparticles on membrane performance was studied in terms of pure water flux, antifouling properties. Nanofiltration performance of the membranes was examined using reactive green 19 (RG19) separation. The Fe3O4 and Fe3O4-APTES modified membranes showed an increased hydrophilicity, porosity, permeability, and dye rejection efficiency and also improved antifouling properties, compared to the bare PES. Water contact angle result demonstrated a decreasing trend with addition of Fe3O4 and Fe3O4-APTES content, showed the effect of hydrophilic nanoparticles on membrane surface hydrophilicity. Membrane porosity was increased from 63.3% for the bare PES to 73.3% and 78.0% for the Fe3O4-0.50 and Fe3O4-APTES respectively, due to the presence of nanoparticles. Pure water flux was increased from 36.1 to 80.4 (L/m2 h) by increasing the Fe3O4 nanoparticle content from 0.00 to 0.50 wt.% and then increased to 92.9 (L/m2 h) by addition of the Fe3O4-APTES nanoparticle. Fouling resistance of the prepared membranes was investigated with filtration of a 250 mg/L bovine serum albumin (BSA) solution. All modified membranes showed improved antifouling properties compared to the bare PES. The best antifouling properties were observed for the Fe3O4-APTES membrane. The values of total, reversible and irreversible fouling for the bare PES were 54.0, 12.6, and 41.4% respectively. Whereas these values for the Fe3O4-0.50 were 31.9, 12.8, and 19.1% respectively, and 26.8, 10.3, and 16.5% for the Fe3O4-APTES, showed higher fouling resistance of the Fe3O4 and Fe3O4-APTES modified membranes due to the more hydrophilic surface. Flux recovery ratio (FRR) was measured as the most important fouling factor. The value of FRR was increased from 58.6% for the bare PES to 80.9 and 83.5% for the Fe3O4-0.50 and Fe3O4-APTES, respectively. Dye rejection performance for all prepared membranes was near total removal (more than 95%). The maximum and the minimum removal efficiency were observed for Fe3O4-APTES (99.5%) and bare PES (95.4%), respectively. the results introduced Fe3O4 and Fe3O4-APTES nanoparticles as an excellent membrane modifier for wastewater treatment objectives

    Acta Physiol. Plant.

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    Foliar nutrition is one of the effective cultural practices in vineyards. In this research, the effect of iron chelate (Fe-EDDHA) and urea, each in three levels of 0, 0.5 and 1%, was evaluated with an ANOVA completely randomized block in commercial viney

    Garlic: a review of potential therapeutic effects

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    Throughout history, many different cultures have recognized the potential use of garlic for prevention and treatment of different diseases. Recent studies support the effects of garlic and its extracts in a wide range of applications. These studies raised the possibility of revival of garlic therapeutic values in different diseases. Different compounds in garlic are thought to reduce the risk for cardiovascular diseases, have anti-tumor and anti-microbial effects, and show benefit on high blood glucose concentration. However, the exact mechanism of all ingredients and their long-term effects are not fully understood. Further studies are needed to elucidate the pathophysiological mechanisms of action of garlic as well as its efficacy and safety in treatment of various diseases.

    Comparative evaluation of different surfaces fit of digitally fabricated cobalt-chromium copings in two depth of finish lines

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    Background and Aims: Despite the increasing application of intra-oral scanners, the effect of finish line position on gingival margins adaptation is still discussed. The purpose of this clinical study was to evaluate the fitness of cobalt-chromium copings obtained from intraoral scanning in two depth of finish lines. Materials and Methods: Thirty teeth prepared for single premolar metal-ceramic crowns were included. Fifteen teeth had supragingival and fifteen had sub-gingival finish lines. Digital impressions were made using an intraoral scanner (Trios-3shape). Computer-aided design and computer-aided manufacture (CAD/CAM) cobalt-chromium copings were fabricated from the scan files. The copings were evaluated intraorally and after adjustments, the internal and marginal discrepancy were measured using silicone replicas and a stereomicroscopy. Internal and marginal discrepancies were analyzed using the Multivariate test (P<0.05). Results: The mean internal and marginal gap were 52.1 and 56.27μ, for supragingival group and 49.72 and 62.98μ for subgingival group, respectively. The evaluation of finish line position showed no significant effect on obtained results (P>0.05). Conclusion: CAD/CAM chrome-cobalt copings fabricated by digital impressions provided acceptable marginal and internal precision. However, the finish line position had no significant effect on the internal and marginal adaptation

    Lavender and the Nervous System

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    Lavender is traditionally alleged to have a variety of therapeutic and curative properties, ranging from inducing relaxation to treating parasitic infections, burns, insect bites, and spasm. There is growing evidence suggesting that lavender oil may be an effective medicament in treatment of several neurological disorders. Several animal and human investigations suggest anxiolytic, mood stabilizer, sedative, analgesic, and anticonvulsive and neuroprotective properties for lavender. These studies raised the possibility of revival of lavender therapeutic efficacy in neurological disorders. In this paper, a survey on current experimental and clinical state of knowledge about the effect of lavender on the nervous system is given

    Advantages, challenges and solutions to assure the security of Iranian government service bus(GSB)

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    While electronic government could help the development of the country and also boost the security and decrease the corruption, but, at the same time it can prepare an infrastructure for other types of crimes and facilitate some type of corruptions. This paper attempts to identify and prioritize the security features and necessities that Government Service Bus(GSB) should have as an electronic government infrastructure. Afterwards vast literature review and interview with the designers and users of this system, the security requirements of different stakeholders were identified. After that by content analysis, these requirements were refined and codified. Three categories of requirements are strategic,, technical and legal or national security requirements. Then adopting Kano model and quality function deployment (QFD) the requirements were processed and prioritized. The results and findings of this research showed that GSB is better than other systems like peer to peer(P2P) and physical document interchange and outperformed them in all dimensions. The main concern of all of respondents and experts were in the area of security. They are unanimous that security framework and standards of the system should be developed and implemented. This also emphasizes the importance of this type of researches

    Comparing Two Methods of Neural Networks to Evaluate Dead Oil Viscosity

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    Reservoir characterization and asset management require comprehensive information about formation fluids. In fact, it is not possible to find accurate solutions to many petroleum engineering problems without having accurate pressure-volume-temperature (PVT) data. Traditionally, fluid information has been obtained by capturing samples and then by measuring the PVT properties in a laboratory. In recent years, neural network has been applied to a large number of petroleum engineering problems. In this paper, a multi-layer perception neural network and radial basis function network (both optimized by a genetic algorithm) were used to evaluate the dead oil viscosity of crude oil, and it was found out that the estimated dead oil viscosity by the multi-layer perception neural network was more accurate than the one obtained by radial basis function network
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