Al-Mustansiriyah Journal of Sciences最新文献

{"title":"Harvesting of Chlorella sp. by Co-cultivation with Some Fil-amentous Fungi","authors":"R. H. Al-Shammari","doi":"10.23851/mjs.v28i2.497","DOIUrl":"https://doi.org/10.23851/mjs.v28i2.497","url":null,"abstract":"Algae are play a major role as straight producers of biofuels, so expansion of a new. harvesting-technology is important to achieve economic feasibility of biofuel production from algae.. Fungal pelletization-assisted.. Microalgal harvesting has Emerged as new research area for decreasing the harvesting cost and energy inputs in the algae-to-biofuel method. The present study tried to opti-mize process circumstances as (substrate inputs, process time and pH). Through choice of a ro-bust fungal strain. Four fungal strains (Aspergillus terreus, Trichoderma sp., Mucor sp. and Rhi-zopus sp.) were screened for their pelletizing efficiency in fresh/supplemented chu-10 with select-ed media nutrient (glucose, nitrogen and phosphorous). Results showed that Aspergillus terreus was the most efficient strain for pelletizing in the nutrient supplemented chu-10 with its neutral pH (7) and acidic pH (5). Stimulatingly, A. terreus was capable to harvest nearly 100 % of the Clorella sp. cells (1×106 spore/ml at optical density (OD) approximately 2.5 initial working algal concentration) within only 24 h. at supplementation of (10 g/l glucose, 2.5 mg/l aNH4NO3 and 0.5 mg/l mK2HPO4) also performed well at lower glucose level (5 g/l) can also results in similar har-vesting but its need relatively higher incubation time. The procedure kinetics in term of harvesting index (H. I) as well as the variation of residual glucose and pH with time was also studied. The mechanism of harvesting process was studied through microscopic, examination. A. terreus strain investigated in this study could emerge as an efficient, sustainable and economically viable tool in microalgae harvesting for biofuel production and time conservation","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72778866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Study for the Accuracy of Helicobacter pylori Diagnostic Methods Associated with Some Inflammatory Factors","authors":"E. N. Naji","doi":"10.23851/MJS.V28I2.495","DOIUrl":"https://doi.org/10.23851/MJS.V28I2.495","url":null,"abstract":"This Study was intended to diagnose H. pyiori the major causative pathogen in gastro duodenal irritation and ulceration. Differert techniques were used invasive tests (histopathological examina-tion, rapid urea CLO test and culture) , while noninvasive tests includes (serological tests and stool antigen) in addition to determination of some immune response factors (IgM , IgG , IgA) as well as (IL – 8 and IFN – y) in Ptients Sera. According to the results of invasive diagnostic method 30/113 (26.69%) patients were considered to be infected and 83/113(73.31%) patients were considered as noninfeted was contrasted with noninvasive diagnostic method 25/113 (22.14%) patients were considered to be infected and 88/133(77.83%) patients were considered as noninfeted. In order to get the overall percentage of the infected people included in this study, we merge the results of the two methods ,so we found out that the total infected patients with H. pylori diagnosed by invasive and noninvasive methods were 42 /113 (37.2%) while the noninfected 71/113 (62.8) disseminated as 27/68(39.71%) infect-ed male ,which was privileged than the infected female when it was 15/45(33.33%). The high prevalence of H. pylori infection in the age group ranging between (46-60) in male and female. Histology (invasive teq.) and ECO rapid test (noninvasive teq.) were considered as the ‘‘best techniques ’’ for H. pylori detection, in the outlook of its high specificity, sensitivity and because it detected the major number of H. pylori-positive patients along with the other techniques used in this work. The sensitivity, specificity, positive predictive values (PPV) and negative predictive values (NPV) for histology were 100,100,100 and 94.5% , respectively, while for the ECO rapid test they were 96, 93, 91.5, and 97.14%. Culture (invasive teq.) and IgG anti H. pylori (noninvasive teq.) coming secondly in the diagnosis of H. pylori infection because they detected a little fewer number of infected patients than the first two teq. as noted above. The sensitivity, specificity, (PPV) (NPV) for Culture were 80%, 97% ,96.96% and87.5% and for IgG anti H. pylori were 85%, 91%,92.8% and 97.8%. Finally the smallest patient number was obtained from the rest of all the six teq. were used in the present work obtained from the urea CLO test and stool antigen, in-vasive and noninvasive teq. respectively. The present research found out that there were a relationship between the results of rapid anti H. pylori ECO test, antibody titer in ELFA, immunoglobulin (IgG and IgA) and (IFN-γ) , (IL-8) concentration. Also, all these data were related to the results of the histological changes and the results of the urea CLO test of patients when compared with the noninfected members. These results showed highly significant differences among patient groups in comparison with noninfect-ed group at (P. Value < 0.001). On the other hand, there were no relationship between IgM con-centration with any of the other re","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90037759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modification of Iraqi Asphalt 40/50 Properties Using Saw Dust (SD) and Natural Rubber Latex","authors":"Rusul l M. Darwesh","doi":"10.23851/MJS.V28I2.514","DOIUrl":"https://doi.org/10.23851/MJS.V28I2.514","url":null,"abstract":"The aim of this research is to enhance the fundamental properties for asphalt binder as those spec-ifications relate to performance of asphalt mixtures. In this paper studied the effect of add (2, 4 %) SD in different sizes and (3, 5 and 7%) Natural rubber latex to the straight asphalt 40/50 produced from Al-Dura refinery at 160C, it was added each additive separately and then added together to asphalt in same temperature, then tested physically and mechanically according to the American Society for Testing and Materials (ASTM), the result showed largely improvement.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74795308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Characterization of New Silver (I) N-Heterocyclic Ccarbene Ccomplex Dderived from Imidazol-2-ylidene salt","authors":"M. M. Hasson","doi":"10.23851/MJS.V28I2.500","DOIUrl":"https://doi.org/10.23851/MJS.V28I2.500","url":null,"abstract":"A new N, N'-imidazolium salt 1-(2,6-diisopropylphenyl)-3- (4,6-dimorpholino -1,3,5-traizine-2-yl)-1H-imidazol-3-ium chloride) as a precursor of N - heterocyclic carbene ligand was prepared via the reaction of 1 - (2, 6 - diisopropyl phenyl - 1H - imidazole) with 1, 3, 5 - triazine derivative bearing morpholine substituent (2, 6 -dimorpholine - 6- chloro-1, 3, 5-triaziazine). Linear coordi-nated Ag (І) NHC complex was synthesised via deprotonation of the imidazolium salt and reac-tion with Ag2O in darkness at room temperature by in situ method. The complex was synthesised for using as transfer agent to prepare another transition metals complexes by transmetallation method in the future. The imidazolium salt and their silver complex have been characterized by 1 H and 13C NMR spectroscopy as well as mass spectrometry.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80367925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Encryption of Stereo Images after Compression by Advanced Encryption Standard (AES)","authors":"M. K. Hussien","doi":"10.23851/mjs.v28i2.511","DOIUrl":"https://doi.org/10.23851/mjs.v28i2.511","url":null,"abstract":"New partial encryption schemes are proposed, in which a secure encryption algorithm is used to encrypt only part of the compressed data. Partial encryption applied after application of image compression algorithm. Only 0.0244%-25% of the original data isencrypted for two pairs of dif-ferent grayscale imageswiththe size (256 ´ 256) pixels. As a result, we see a significant reduction of time in the stage of encryption and decryption. In the compression step, the Orthogonal Search Algorithm (OSA) for motion estimation (the dif-ferent between stereo images) is used. The resulting disparity vector and the remaining image were compressed by Discrete Cosine Transform (DCT), Quantization and arithmetic encoding. The image compressed was encrypted by Advanced Encryption Standard (AES). The images were then decoded and were compared with the original images. Experimental results showed good results in terms of Peak Signal-to-Noise Ratio (PSNR), Com-pression Ratio (CR) and processing time. The proposed partial encryption schemes are fast, se-cure and do not reduce the compression performance of the underlying selected compression methods","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86709287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural Properties of Nanoparticles TiO2/PVA Polymeric Films","authors":"Samara A. Madhloom","doi":"10.23851/MJS.V28I2.517","DOIUrl":"https://doi.org/10.23851/MJS.V28I2.517","url":null,"abstract":"In this research, X-ray diffraction of the powder (PVA polymer, titanium dioxide with two parti-cle sizes) and (TiO2 (15.7 nm)/PVA and TiO2 (45.7 nm)/PVA) films have been studied,the amount of polymer is (0.5) g and (0.01)g from each particle sizes of nanoparticles will be used. Casting method is used to prepare homogeneous films on glass petri dishes. All parameters ac-counted for the X-ray diffraction; full width half maximum (FWHM), Miller indices (hkl), size of crystalline (D), Specific Surface Area (S) and Dislocation Density (δ). The nature of the structural of materials and films will be investigated. The XRD pattern of PVA polymer has semi-crystalline nature and the titanium dioxide with two particle sizes have crystalline structure; ana-tase type. While the mixture between these materials led to appearing some crystalline peaks into XRD pattern of PVA polymer","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78830959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating Cross Sections of Gallium Isotopes Production Using proton and deuteron Irradiation","authors":"R. Mohammed","doi":"10.23851/MJS.V28I2.516","DOIUrl":"https://doi.org/10.23851/MJS.V28I2.516","url":null,"abstract":"In the present work, the production of the cross sections of three Gallium isotopes: 35 \u000066 \u000031Ga \u0000(t1 \u0000⁄2 = 9.4h, β+ = 4.2MeV), 36 \u000067 \u000031Ga \u0000(t1 \u0000⁄2=3.2617d, EC=100%) and 37 \u000068 \u000031Ga \u0000(t1 \u0000⁄2 = 68min, \u0000Iβ+ = 89%) have been discussed. The Gallium isotopes have important applications in nuclear \u0000medicine, particularly in Positron Emission Tomography (PET), Single Photon Emission Tomography \u0000(SPET) imaging technique and used in tumors diagnosing. The production of irradiant \u0000Ga 66 \u0000, \u0000Ga 67 \u0000and \u0000Ga 68 \u0000is made by irradiation of an enriched Zinc target using proton and deuteron \u0000charged particles. Utilizing high cyclotron yield and low radionuclide impurities, the optimum \u0000cyclotron energy range has been chosen for the production of Gallium isotopes. The cross \u0000sections of (p,xn), (p,γ) and (d,xn) reactions for the production of Gallium isotopes have been \u0000evaluated depending upon the empirical data taken from EXFOR library, which is belonging to \u0000the International Atomic Energy Agency (IAEA). Also the yield for each reaction has been evaluated","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86436502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, characterization and antibacterial Evaluation for mixed-ligand Complexes of Nickle (II), Manganese(II), Cop-per(II),Cobalt(II) and Mercury(II) with Tetradentate Schiff base and 1,10-phenanthroline","authors":"R. Al-Shemary","doi":"10.23851/MJS.V28I2.503","DOIUrl":"https://doi.org/10.23851/MJS.V28I2.503","url":null,"abstract":"An abstract is a brief summary of a research article, thesis, Schiff base ligand (L) was prepared by the reaction of 4-aminantipyrine with o-phenylenediamine, the prepared ligand characterized by Micro elemental Analysis, FT. IR, UV-Vis, and 1H,13C-NMR spectroscopy.complexes of Mn(II), Co(II), Ni(II), Cu(II) and Hg(II) with Schiff base and 1,10-phenanthroline (Phen) have been in-vestigated in aqueous ethanol with (1:1:1) (M:L:Phen). The prepared complexes were character-ized using flame atomic absorption, (C. H. N) Analysis, FT. IR and UV-Vis spectroscopic meth-ods as well as magnetic susceptibility and conductivity measurements. From the obtained data the octahedral structure was suggested for all complexes. The biological screening effects of the in-vestigated compounds were tested against the bacterial species (Staphylococcus aureus), (Esche-richia coli), (Bacillus) and (Pseudomonas) by the good diffusion method.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79767048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Best Approximate of Vector Space Model by Using SVD","authors":"R. Hadi","doi":"10.23851/MJS.V28I2.509","DOIUrl":"https://doi.org/10.23851/MJS.V28I2.509","url":null,"abstract":"A quick growth of internet technology makes it easy to assemble a huge volume of data as text document; e. g., journals, blogs, network pages, articles, email letters. In text mining application, increasing text space of datasets represent excessive task which makes it hard to pre-processing documents in efficient way to prepare it for text mining application like document clustering. The proposed system focuses on pre-processing document and reduction document space technique to prepare it for clustering technique. The mutual method for text mining problematic is vector space model (VSM), each term represent a features. Thus the proposed system create vector-space mod-el by using pre-processing method to reduce of trivial data from dataset. While the hug dimen-sionality of VSM is resolved by using low-rank SVD. Experiment results show that the proposed system give better document representation results about 10% from previous approach to prepare it for document clustering","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88214789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anti-Ovarian Vessels Antibodies in P. aeruginosa Rabbit Hyper Immune Sera, an Immunohistochemical Study","authors":"N. A. Saeed","doi":"10.23851/MJS.V28I1.313","DOIUrl":"https://doi.org/10.23851/MJS.V28I1.313","url":null,"abstract":"Cyclical angiogenesis in the ovary is a unique process supporting normal folliculogenesis as well as lute genesis. In this report we investigated the reactivity of rabbit anti pseudomonas aeruginosa antisera with ovarian blood vessels. \u0000Tissues stained with anti-sera were immunohistochemically visualized using biotinylated anti rabbit immunoglobulin and peroxidase conjugated streptavidin. Positive staining sites depend on anti-stain type, however, staining was observed in endothelial cell and tunica adventitia in most cases.On the other hand, corpus luteum blood vessels showed a positive staining pattern as well. \u0000We conclude from this study that a peculiar staining pattern was seen in ovarian blood vessels stained with rabbit anti-pseudomonas aeruginosa hyper immune sera, the importance of this reactivity need further investigation.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80336054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}