391 research outputs found

    Lie symmetry analysis of nonlinear evolution equation for description nonlinear waves in a viscoelastic tube

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    In this paper, the Lie symmetry method is performed for the nonlinear evolution equation for description nonlinear waves in a viscoelastic tube. we will find one and two-dimensional optimal system of Lie subalgebras. Furthermore, preliminary classification of its group-invariant solutions are investigated.Comment: 9 page

    Study of Plasma Metanephrine Level As Biochemical Parameter in Pregnant Women with Preeclampsia

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    Pregnancy- including hypertension(PIH), also known as preeclampsia, is one of the major causes of maternal and fetal death. This study was carried out on 30 pregnant women with preeclampsia and 30 healthy pregnant women as control ranging in age mean ±SD (28.84±3.55) years , BMI (76.80±9.78) Kg/m2 and gestation age(30.82±0.75)week. The aim of this research was studied the plasma Metanephrine level and other biochemical parameters such as Hemoglobin(Hb), serum Protein, S. Albumin, Globulin, Albumin/Globulin ratio (Alb/Glu. ratio), S.Glutamate Pyruvate aminotransferase (GPT), S.Glutamate Oxaloacetate aminotransferase(GOT). The obtained results have been compared with 30 healthy pregnant women as control group. The result showed that there was significant increase in mean value of Hb in group A(pregnant women with preeclampsia) when compared to group B(healthy pregnant women). The present study showed no significant changes was observed in the level of S. Protein, globulin, Alb./Glu. ratio, GPT and GOT as compared to control group. While Albumin showed a significant decrease in group A(pregnant women with preeclampsia) when compared with group B(healthy pregnant women) and significant increase in the levels of metanephrine, metanephrine/protein ratio, metanephrine/Alb ratio in group A (pregnant women with preeclampsia) to group B(healthy pregnant women).The present study conclude that the increase in the levels of metanephrine, metanephrine/protein ratio, metanephrine/Alb ratio in pregnant women with preeclampsia may be used as a marker to evaluate the development of disease. The current study recommend to take more case and measurement metanephrine in plasma and urine

    The Prevalence and the Quantification of Hepatitis C Virus among Thalassemia Patients using ELISA and PCR in Diyala Province

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    Background: Hepatitis C virus is  the most common cause of post-transfusion hepatitis  and end-stage liver disease in many countries. Regular blood transfusion in patients with hereditary hemolytic anemia, particularly thalassemia, has improved their overall survival, but carries a definite risk of acquisition of blood borne virus infections, especially viral hepatitis. Objective: To determine the prevalence and the quantification of HCV infection among thalassemia patients in Diyala province by using  enzyme- linked immunosorbent assay  and polymerase chain reaction techniques. Patients and Methods: This study was conducted on 215 thalassemia patients in the   thalassemia unit in Al-Batool Teaching Hospital of Maternity and Pediatrics in Baqubah city- Diyala province during the period from September 2013 to December 2015. Demographic data were obtained from the patients records. Sera were tested with anti-HCV assays by use enzyme linked immunosornbant assay and positive result were tested by  a Real time PCR technique to assess HCV infection. Results: A total of 215 thalassemic patients, 26 (12.1%) patients  were HCV positive by enzyme linked immunosornbant assay and only 3 of these 26 patients were positive by                RT-PCR. The rate of HCV infection in thalassemic patients is associated directly with the number of blood transfusions   and   the age of the patients and It is more in the period before 1996. Conclusion: The prevalence of HCV infection in thalassemic patients is relatively low in Diyala province in comparison with other areas and PCR technique is essential to detect and treat active infection

    The role of boron oxide and carbon amounts in the mechanosynthesis of ZrB2-SiC-ZrC nanocomposite via a self-sustaining reaction in the zircon/magnesium/boron oxide/graphite system

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    Herein, ZrSiO4/B2O3/Mg/C system was used to synthesize a ZrB2-based composite by means of a high energy ball milling process. A mechanically induced selfsustaining reaction was achieved in this system. A nanocomposite powder of ZrB2– SiC–ZrC was prepared with an ignition time of approximately 6 minutes of milling. The role of the stoichiometric amounts of B2O3 and carbon was investigated to clarify the governing mechanism for the formation of the productGobierno de España No. MAT2011-2298

    Lie symmetries and conservation laws of the Hirota-Ramani equation

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    In this paper, Lie symmetry method is performed for the Hirota-Ramani (H-R) equation. We will find The symmetry group and optimal systems of Lie subalgebras. Furthermore, preliminary classification of its group invariant solutions, symmetry reduction and nonclassical symmeries are investigated. Finally the conservation laws of the H-R equation are presented.Comment: 16 page

    The feasibility of creating a natural habitat for spawning, bony fish in the Caspian Sea in order to preserve biodiversity and genetic risk

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    The purpose of this study was to investigate the possibility of natural reproduction of indanger fish in the southern Caspian Sea in Tajan, Haraz,Sardabrood and Chalos rivers, and identify suitable habitats for this species in the study area as a genetic reserve.Sampling of physical and chemical parameters of water, macrobenthic invertebrates and fish fauna was conducted seasonaly in each rivers at selected stations from febrary 2010 during one year. Macrobenthic invertebrate sampling were used bySorber sampler and fish was collected by gill net and electroshocker set with a voltage of 1.7 A and 100-300 V. A total of 53 taxa of macrobenticinvertabrateshave been identified in the four mentioned rivers, in which Tajanriverconsisted of 47 taxa with highest richness.20 species of fish were determined in the studied rivers that 6 of them were non-native species.The results showed that the predominant identified fish species were native in the river. The fish species diversity increases as one moves from the headstream towards the estuaries of the two studied Sardabrud and Chalus rivers.The results of this study showed that the relative abundance of fish species resistant to pollution and hard environmental conditions were much more that sensitive species. physicochemical parameters of water such as; water temperature, DO, BOD5, pH, TSS, TDS, EC, turbidity, nutrients, biodiversity index such as Shanon index, EPT, HFBI, EPT/CHIR, nutrition functioning group and present or absent of fish species showed that there are significant decrease in water qualities from upstraem ratio to down stream (For example, in Tajan river water turbidity varied from 0 at station 1 to 333 NTU at station 6, Which is strongly influenced by sand workshops. As well as the activities of a significant impact of fish farming workshop on the Haraz river water quality). The minimum of HFBI index was 2.84 at station 1 and the maximum was recorded at station 5 with 6.01, and there is not any possibility to natural reproduction of migrated species that are dominant and indanger at downstream. Conditions for natural reproduction of this species in the rivers of srdabrood and Chalus there is to some. In Shahid- Rajaei dam the maximum relative abundance of fish species belonged to Capoeta capoeta, Luciobarbus capito and Squalius cephalus, respectively. These species have different age, length and weight stuctures at Shahid- Rajaei dam inhabitant, and the resourval of this dam and it,s upstream have been preparing auch a favorabile condition that seems there are potentioal of introductionand inhabitant of some of the Migratory and indanger fish species such as Barbels, Sturgeon, Alburnus chalcoides and etc. as genetic reserve for biodiversity preservation

    Heritability and selection response estimation of growth rate in common carp (Cyprinus carpio) of Caspian Sea

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    The Common carp is the most important culture fish in the word, that can be consider as domestic fish. The Common carp of Caspian Sea is one of the economic fish, that have some morphenological differences, resistance in salt water and better quality in meet with domestic once and for using this fish in culture system, it is necessary to establish genetically parameters especially the heritability for selection purpose. The present study have been started from 2007 and lasted 3 years. The breeders were collected from the Gomishan station in south-east of Caspian Sea by fisherman and stocked in S.Rajaei fish restocking center and propagate based on the routine propagation technique in this farm. For heritability estimation a factorial crosses by 7×7 fish were done. Therefore, the fingerlings of 49 crosses were achieved, that kept first separately fiberglass tank and then in pond separately. Weight and length of fish were choice for heritability estimation. The average weight of juvenile common carp in 3 sampling stage of 90, 180 and 360 days, were 5.9, 35.7 and 84.7 gram and length of 9.6, 14.7 and 19.2 cm respectively. The heritability estimation for weight was 0.26 and length 0.25. Selection response based on selection difference by collection the more average breeders among their progeny were 36.4 g that means by selection every generation, there is about 4 percent improving in fish weight

    Increasing growth rate of Salmo trutta caspius by selection (Phase 1)

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    The management of genetically brood stocks of Salmo trutta of Caspian Sea in order to restocking for longe time harvesting and culture of fish in intensive system, has been little investigated, in contrast with European stocks. Salmo trutta Caspius is very important in biological and genetically point of view. This fish as gene bank valid for breeding improvement, hybridization and new cold species for culture, can be used. This study begain in 2007 and lasted 3 years in Bahonar, kelardasht of Iran. The breeders were 27 pairs. Each female have been crossed by 3 male. Eggs and larvae as well as the fingerlings reared separately of each crosses. The best fingerlings of 5, 20 and 100 gram were collected after 3 period of challenge. At the final 300 brood stocks in two groups were remained and stocked for artificial propagation. For heritability estimation in 4 stages sampling the weight and length were measured and it was 0.47 and 0.50 respectively. In case of molecular study the quality of DNA extract from the fin of breeders and their progeny by phenol-chloroform was good for PCR test. The heterosigosity test for Ho and He for each station and sites except for SRUTTA12 and STRUTTA59, the He was greater than Ho. Shaton Index and Hardy-Weinberg equilibrium for station and sites for male and progenies, the OM24showed deviation from H-W equilibrium. In case of similarity and genetic distance based on Nei (1972), the highest distance were in case of male and female, and were the least between fingerlings and male brood stocks

    An insight to HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) pathogenesis; evidence from high-throughput data integration and meta-analysis

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    Background Human T-lymphotropic virus 1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a progressive disease of the central nervous system that significantly affected spinal cord, nevertheless, the pathogenesis pathway and reliable biomarkers have not been well determined. This study aimed to employ high throughput meta-analysis to find major genes that are possibly involved in the pathogenesis of HAM/TSP. Results High-throughput statistical analyses identified 832, 49, and 22 differentially expressed genes for normal vs. ACs, normal vs. HAM/TSP, and ACs vs. HAM/TSP groups, respectively. The protein-protein interactions between DEGs were identified in STRING and further network analyses highlighted 24 and 6 hub genes for normal vs. HAM/TSP and ACs vs. HAM/TSP groups, respectively. Moreover, four biologically meaningful modules including 251 genes were identified for normal vs. ACs. Biological network analyses indicated the involvement of hub genes in many vital pathways like JAK-STAT signaling pathway, interferon, Interleukins, and immune pathways in the normal vs. HAM/TSP group and Metabolism of RNA, Viral mRNA Translation, Human T cell leukemia virus 1 infection, and Cell cycle in the normal vs. ACs group. Moreover, three major genes including STAT1, TAP1, and PSMB8 were identified by network analysis. Real-time PCR revealed the meaningful down-regulation of STAT1 in HAM/TSP samples than AC and normal samples (P = 0.01 and P = 0.02, respectively), up-regulation of PSMB8 in HAM/TSP samples than AC and normal samples (P = 0.04 and P = 0.01, respectively), and down-regulation of TAP1 in HAM/TSP samples than those in AC and normal samples (P = 0.008 and P = 0.02, respectively). No significant difference was found among three groups in terms of the percentage of T helper and cytotoxic T lymphocytes (P = 0.55 and P = 0.12). Conclusions High-throughput data integration disclosed novel hub genes involved in important pathways in virus infection and immune systems. The comprehensive studies are needed to improve our knowledge about the pathogenesis pathways and also biomarkers of complex diseases.Peer reviewe
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