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مرکز اطلاعات علمی SID1
اسکوپوس
مرکز اطلاعات علمی SID
ریسرچگیت
strs
Author(s): 

Issue Info: 
  • Year: 

    2019
  • Volume: 

    18
  • Issue: 

    2
  • Pages: 

    623-632
Measures: 
  • Citations: 

    409
  • Views: 

    4766
  • Downloads: 

    19588
Keywords: 
Abstract: 

Yearly Impact:

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Author(s): 

TAHMASEBI ADNAN | ZARE NASSER

Issue Info: 
  • Year: 

    2011
  • Volume: 

    3
  • Issue: 

    1 (3)
  • Pages: 

    177-197
Measures: 
  • Citations: 

    0
  • Views: 

    1137
  • Downloads: 

    335
Abstract: 

This paper examines paradox in the symbols of the poemunsh) DAT al-Matar (‘song of rain’), composed by Shakir al-Sayyab. It also investigates how meaning is developed in these symbols. In the symbols in this poetry, paradoxical themes like happiness and grief, rain and drought, and life and death emerge. The onomatopoeia ‘rain’, which forms the central image of this poetry, has the same paradox. The constant tension between these paradoxes, with the steady drop of rain, culminates in life and joy.

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Issue Info: 
  • Year: 

    2018
  • Volume: 

    13
  • Issue: 

    39
  • Pages: 

    26-42
Measures: 
  • Citations: 

    0
  • Views: 

    294
  • Downloads: 

    166
Abstract: 

Schedules are major concerns in construction planning and management. The mutual interferences among construction activities of tunnels are complicated, which will affect scheduling to some degree. Ground condition and construction (excavation & support system) time and costs are key factors in decision making during the planning and design phase of a tunnel project. In this work the DAT innovative methodology for the probabilistic estimation of ground condition and construction time and costs is used. As construction progresses, geologic information is checked based on the excavated part of the tunnel and, therefore, the uncertainty about this part of the tunnel will disappears. This new information can be used to upDATe the geology condition of the tunnel in order to obtain more precise prediction for unexcavated part. In this paper, an engineering application to Garan road tunnel is well presented to demonstrate how the ground conditions and the construction time and costs are upDATed during construction. Finally, the results of simulations for the initial prediction and the upDATed prediction will be compared in order to see how the construction time and costs distributions of the given tunnel are changed after the geologic upDATing. Finally, reducing of uncertainty about the construction time and costs is resulted. It facilitates both the owners and the contractors to be aware of the risk they should carry before construction of unexcavated part, and it is useful for both tendering and bidding.

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گارگاه ها آموزشی
Author(s): 

Journal: 

EJNMMI PHYS

Issue Info: 
  • Year: 

    2017
  • Volume: 

    4
  • Issue: 

    1
  • Pages: 

    8-8
Measures: 
  • Citations: 

    383
  • Views: 

    2551
  • Downloads: 

    15214
Keywords: 
Abstract: 

Yearly Impact:

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Issue Info: 
  • Year: 

    2008
  • Volume: 

    8
  • Issue: 

    1 (27)
  • Pages: 

    77-83
Measures: 
  • Citations: 

    0
  • Views: 

    1260
  • Downloads: 

    228
Abstract: 

Background & Objective: Visceral leishmaniasis (kala-azar) is an infectious-parasitic disease occurring sporadically in various parts of Iran. The disease is endemic in Ardabil, East Azarbaijan, Bushehr and Fars provinces. This study was performed with the aim of evaluation and comparison of direct agglutination test (OAT), indirect immunofluorescent antibody (IFAT) and ELISA in sero-diagnosis of visceral leishmaniasis that is following a seroepidemiological survey in Germi district of Ardabil province.Methods: Cluster sampling has been performed from£12 years old and 10% of the adult population in Germi district. Altogether 1155 blood specimens were collected to detect anti- Leishmania antibodies. The samples were tested by direct agglutination test (OAT), indirect immunofluorescent antibody (IFAT) and ELISA methods.Results: 32 (2.8%) of the collected specimens have anti-Leishmania antibodies with titers ³1:800 and from total specimens 7 (0.6%) were positive with ³1:3200 titers. In IFA test 32 (2.8%) have titers ³1:40 and from total specimens 6 (0.52%) were positive with ³1:320 titers. In ELISA test 8 specimens were positive and other specimens were negative.Conclusions: According to the results of this study, IFAT and ELISA are specific and high sensitive tests for sero-diagnosis of visceral leishmaniasis but these methods are expensive and require the complicated tools. Whereas, OAT is a simple method, not expensive and require a simple local laboratory with one or two trained technicians. Therefore OAT could be used for seroepidemiological studies and sero-diagnosis of visceral leishmaniasis in endemic areas instead of IFA and ELISA methods.

Yearly Impact:

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Issue Info: 
  • Year: 

    2014
  • Volume: 

    9
  • Issue: 

    2
  • Pages: 

    151-160
Measures: 
  • Citations: 

    0
  • Views: 

    825
  • Downloads: 

    294
Abstract: 

Vinca (Catharanthus roseus) is a model medicinal plant. Roots of this plant is a place for accumulation of both alkaloids ajmalicine and serpentine. These materials are used for treatment of cardiovascular diseases, such high blood pressure. This plant is also very important, for production of alkaloids, vinblastine and vincristine, which are used in cancer treatment. Ethylene treatment significantly increased production metabolites of this plant. The objective of this research was investigation of ethylene effect on expression of some genes and detection of responsible genes for increase these metabolite. Effect of ethylene on the expression of T16H, G10H, DAT and AVLBS genes, at time course of 6, 12, 24, 48 and 72 hours, by Real time RT-PCR was investigated. Expression of T16H, DAT and AVLBS genes were up-regulated at 6 h after treatment with ethylene and down-regulated at 12 hours, then followed steady pattern. Also, the expression of G10H was increased at 72 h, and did not follow the pattern of the other three genes. According to results of the G10H gene is important gene to respond to ethylene.

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strs
Author(s): 

SANKIAN M. | HASHEMI M. | VARASTEH A.R.

Issue Info: 
  • Year: 

    2004
  • Volume: 

    7
  • Issue: 

    2 (22)
  • Pages: 

    18-22
Measures: 
  • Citations: 

    0
  • Views: 

    909
  • Downloads: 

    201
Abstract: 

The quantification of anti-red blood cell antibodies routinely performed by standard direct antiglobulin test (DAT), but there are some limits to its sensitivity and the end-point evaluation is very subjective in this method. Recently, a modified enzyme-linked immunosorbant assay (ELISA) has been applied to detect anti-red blood cell antibodies. In this method, the end-point is determined by enzyme activity of an enzyme conjugated anti-human antibodies. The enzyme converts a soluble substrate to a soluble colored product, which is proportional to amount of primary antibodies. This technique has been called enzymelinked antiglobulin test (ELAT). In this study, we tried to evaluate the analytical parameters of this technique and compare with conventional DAT method. Our results showed some modification of the previously described ELAT technique makes it feasible and simpler for the routine applications. This modified method was reproducible with the mean coefficient variation of 9.08 and 5.21 for between days. And within day assays and found to be at least sixteen times more sensitive than DAT method. Anti-D measurement showed an acceptable correlation (R 0.88) between ELAT and DAT methods. Therefore, this method could be useful for more precise monitoring of allo-immunized mothers and patients with auto immune hemolytic anti-D anemia and provide an alternative method for assessing anti-D activity of specific total IgG and IgG subclasses preparation.

Yearly Impact:

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Author(s): 

Journal: 

PROCEDIA ENGINEERING

Issue Info: 
  • Year: 

    2018
  • Volume: 

    211
  • Issue: 

    -
  • Pages: 

    546-554
Measures: 
  • Citations: 

    393
  • Views: 

    4186
  • Downloads: 

    16799
Keywords: 
Abstract: 

Yearly Impact:

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Issue Info: 
  • Year: 

    2007
  • Volume: 

    4
  • Issue: 

    2
  • Pages: 

    116-121
Measures: 
  • Citations: 

    0
  • Views: 

    82251
  • Downloads: 

    45317
Abstract: 

Background: The causative agent of VL in Iran is L.infantum (Mediterranean type) and its major reservoir host is dog. Objective: To compare the serological methods including direct agglutination test (DAT), indirect immunofluorescent-antibody test (IFA) and enzyme-linked immunosorbent assay (ELISA) for serodiagnosis of endemic strain of Leishmania infantum. Methods: 61 blood samples from VL patients referred to Shiraz hospitals and 49 blood samples from control group were collected. Native strain of the parasite isolated from a VL patient from the region was cultured and characterized. Antigens from this L. infantum parasite were used in ELISA and IFA system. Results: Anti-Leishmania antibody was detected in 43 (70.5%), 49 (80.3%) and 51(83.6%) cases using DAT, IFA and ELISA, respectively. Based on these results, sensitivity and specificity of DAT was found to be 70.5% and 100%, respectively. Sensitivity of IFA and ELISA in diagnosis of VL was 80.3% and 83.6% and their specificity was 90.5%. Conclusion: Results of this study showed that DAT and ELISA have the highest specificity and sensitivity in diagnosis of VL. DAT is a simple, cost-effective and field applicable test. Thus, it can be recommended for early and accurate diagnosis of VL, especially in regions where malaria, brucellosis and tuberculosis are prevalent.  

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Issue Info: 
  • Year: 

    2006
  • Volume: 

    1
  • Issue: 

    1
  • Pages: 

    15-25
Measures: 
  • Citations: 

    1647
  • Views: 

    178760
  • Downloads: 

    91884
Abstract: 

Visceral leishmaniasis (VL) is one of the most important parasitic diseases which are endemic in different parts of Iran. Serological studies were conducted by direct agglutination test (DAT) on 12144 human serum samples, collected from four geographical zones of Iran. Sero prevalence, geographical distribution, clinical signs and symptoms for human visceral leishmaniasis based on DAT for the period of 2002 through 2005 were determined. From 516 kala-azar cases detected: 50.6% were from Meshkin-shahr and Moghan districts in Ardabil Province, northwest of Iran and 49.4% were detected from other areas of Iran. In physical examination of seropositive cases, which were detected by DAT with anti leishmanial antibodies at titers of 1: 3200 to 1: 102400, almost 50% of suspected individuals showed the classical kala-azar signs and symptoms. Predominant signs and symptoms in 233 hospitalized patients with anti-Leishmania antibodies at 1:3200 and higher, were fever (88.0%) and splenomegaly (84.5%). Statistically significant difference was found between males (58%) and females (42%) (P< 0.01). Moreover, 93.6% of the VL patients were £ 5 yr of age, and 6.4% were older than 5 yr that this difference was statistically significant (P< 0.01). From 1383 serum samples collected from domestic dogs in the villages that are known as endemic foci of human leishmaniasis, 152 (11.0%) were positive by DAT (³ 1:320). Parasitological and serological examinations that were performed in 30 wild canines showed that 10% of these animals were infected by L. infantum. L. infantum Lon 49 is the principal agent of the disease in human as well as animal reservoir hosts in different parts of Iran. For the first time in Iran, L. tropica isolated from both skin lesions in the face and bone marrow aspiration in a HIV+ man who co infected with VL as well as in an infected dog from Ardabil Province.

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