mjl@ ltrby@ wl`lm最新文献

{"title":"Antibacterial effect of Bacillus subtilis extract on the growth of pathogenic bacteria and analyzed by GC-MS","authors":"سارة Al-Rubyee, N. Ibrahim","doi":"10.33899/edusj.2022.132296.1203","DOIUrl":"https://doi.org/10.33899/edusj.2022.132296.1203","url":null,"abstract":"The antibacterial effect of three selected isolates of Bacillus subtilis (Sar1, Sar2, Sar3) was tested by the agar diffusion method, and the results showed that there was no inhibitory effect of these bacteria against the growth of pathogenic bacteria; Staphylococcus aureus, Staphylococcus haemolyticus Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa, while the undiluted and halfdiluted (200, 100, 50) mg/ml extracts, of the three cultures which were tested by the Agar Well Diffusion method, had varying inhibitory effects towards the growth of these five pathogenic bacteria and more effect on gram-positive compared to its effect on gram-negative bacteria. Through GC-MS detection of secondary metabolites of Bacillus subtilis (Sar1) extract, which were selected because they are identical to Bacillus subtilis bacteria contained in the standard GeneBank with a percentage of (95)%, it was found that they consist of (33) chemical substances according to the number of peaks produced. After injecting the extract into the GC device, and when this information was entered into the MS device, it was diagnosed by its names with the calculation of its molecular weight and the amount of area it occupies as a percentage within the used extract understudy.","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46765935","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":"A Study of Some Changes in the Properties of Recycled PVC Plastic in Arbil Factories","authors":"Azad S. Sadraddin, D. raheem","doi":"10.33899/edusj.2021.131417.1189","DOIUrl":"https://doi.org/10.33899/edusj.2021.131417.1189","url":null,"abstract":"In Arbil recycling factories, the plastic materials are usually recycled for many times and this affect the physical, chemical and mechanical properties of the plastic materials. For the first time in the Iraq a research on dioctylphthalate (DOP) plasticizer extracted from recycled polyvinyl chloride (PVC) plastic industries in Arbil city was carried out after optimization conditions to obtain the maximum plasticizer percentage. Different physical and chemical tests were applied on the PVC samples, such as viscosity measurements, determination of Softening Points and bromine test. In addition, TLC chromatography and IR spectroscopy methods were used as identification methods. It was shown that the PVC plastic products lose many of its chemical, physical and mechanical properties after using for some months. The effect of the DOP plasticizer on the softening point of the PVC plastic samples was studied according to the seasons of the year. The outcomes of this study may be essential for future environmental studies.","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43393619","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":"Indirect Spectrophotometric Determination of Famotidine and Ciprofloxacin Hydrochloride in Pharmaceuticals Using N-Bromosuccinimde and Janus Green B Dye.","authors":"Muthanna Abdullah, E. Salih","doi":"10.33899/edusj.2022.132289.1204","DOIUrl":"https://doi.org/10.33899/edusj.2022.132289.1204","url":null,"abstract":"An indirect simple and sensitive spectrophotometric method has been developed for the determination of famotidine (FAM) and ciprofloxacin hydrochloride (CIP) in pure and pharmaceutical dosages. The method is based on the oxidation of FAM and CIP with known excess of N-Bromosuccinimde in acidic medium and subsequent occupation of unreacted oxidant in decolorization of Janus green B dye and measure the absorbance of residual dye at 618 nm. Calibration curves of residual Janus green B dye in the presence of FAM or CIP were rectilinear over the ranges 1.0-10.0 and 1.0-7.5 μg/ml with molar absorptivity 3.61×10 and 5.14×10 l.mol.cm respectively. The accuracy (average recovery) was ranged between 99.68 and 100.23% and precision (RSD%) is less than 3.80%. The developed method was successfully applied for the determination of the studied drugs in their pharmaceutical preparations. The results obtained are in agreement with certified values of pharmaceutical preparations and also with standard addition procedure and standard method applied in state company for drugs industry and medical appliance,SDI.","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45811293","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":"Software Development Effort Estimation Techniques: A Survey","authors":"farah alhamdany, Laheeb Ibrahim","doi":"10.33899/edusj.2022.132274.1201","DOIUrl":"https://doi.org/10.33899/edusj.2022.132274.1201","url":null,"abstract":"Software Effort Estimation (SEE) is used in accurately predicting the effort in terms of (person–hours or person–months). Although there are many models, Software Effort Estimation (SEE) is one of the most difficult tasks for successful software development. Several SEE models have been proposed. However, software effort overestimation or underestimation can lead to failure or cancellation of a project. Hence, the main target of this research is to find a performance model for estimating the software effort through conduction empirical comparisons using various Machine Learning (ML) algorithms. Various ML techniques have been used with seven datasets used for Effort Estimation. These datasets are China, Albrecht, Maxwell, Desharnais, Kemerer, Cocomo81, Kitchenham, to determine the best performance for Software Development Effort Estimation. Root Mean Square Error (RMSE), Mean Absolute Error (MAE), and R-Squared were the evaluation metrics considered. Results and experiments with various ML algorithms for software effort estimation have shown that the LASSO algorithm with China dataset produced the best performance compared to the other algorithms.","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44941023","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":"Investigation the toxicity of compound insecticide (Acetamiprid and Thiamethioxam) on development of Ross 308 Broiler chick embryo","authors":"Banan Taha, R. Mohammed","doi":"10.33899/edusj.2022.132403.1206","DOIUrl":"https://doi.org/10.33899/edusj.2022.132403.1206","url":null,"abstract":"","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43038366","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":"Intelligence System for Multi-Language Recognition","authors":"F. Ramo, Mohammed Kannah","doi":"10.33899/edusj.2022.132223.1200","DOIUrl":"https://doi.org/10.33899/edusj.2022.132223.1200","url":null,"abstract":"Language classification systems are used to classify spoken language from a particular phoneme sample and are usually the first step of many spoken language processing tasks, such as automatic speech recognition (ASR) systems Without automatic language detection, spoken speech cannot be properly analyzed and grammar rules cannot be applied, causing failures Subsequent speech recognition steps. We propose a language classification system that solves the problem in the image field, rather than the sound field. This research identified and implemented several low-level features using Mel Frequency Cepstral Coefficients, which extract traits from speech files of four languages (Arabic, English, French, Kurdish) from the database (M2L_Dataset) as the data source used in this research. A Convolutional Neuron Network is used to operate on spectrogram images of the available audio snippets. In extensive experiments, we showed that our model is applicable to a range of noisy scenarios and can easily be extended to previously unknown languages, while maintaining classification accuracy. We released our own code and extensive training package for language classification systems for the community. CNN algorithm was applied in this research to classify and the result was perfect, as the classification accuracy reached 97% between two languages if the sample length was only one second, but if the sample length was two seconds, the classification accuracy reached 98%. While the classification among three languages, the classification accuracy reached 95% if the sample length was only one second, but if the sample length was two seconds, the classification accuracy reached 96%.","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45694162","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":"Enhancement Efficiency of Calculation of the Phonon Images for GaP Piezoelectric Crystal","authors":"M. Hussien, Abeer M Bader","doi":"10.33899/edusj.2022.131963.1195","DOIUrl":"https://doi.org/10.33899/edusj.2022.131963.1195","url":null,"abstract":"In this paper an improved phonon imaging for GaP has been calculated, this crystal is one of III-V group. In the presence of piezoelectric properties, the computation treatment is based on increasing the number of points in the reduced Brillouin zone and increasing the size of the phonon image matrix. The phonon images can be calculated by large number of points in the reduced Brillouin zone which represent the wave vectors and these vectors can be transformed to group velocity vectors using Christoffel equation, these set of group velocity vectors can be projected in a certain direction to form the phonon image. A program was prepared in MATLAB language to calculate these images by determining the number of points in the reduced zone and determining the size of the matrix that represents the phonon images in addition to the direction of the projections. To calculate the phonon images in the presence of the effect of the piezoelectric properties, it is through the presence of the k44 factor, which indicated of the influence of the piezoelectric properties on the phonon images. The results showed that the size of the image matrix is more effective factor than the number of points in the reduced Brillouin zone especially when the number of points is greater than 8 × 10 points, and when the number of points less than 10 points all the obtained phonon images is not clear. Key word: phonon images, piezoelectric crystals, phonon images of GaP, cubic crystal, calculation of phonon images تارولبل ةينونوفلا روصلا باسح ةءافك نيسحت GaP ةيئابرهكوزيبلا ميهاربا ردب ريبع 1 * ، نيسح حلاص دمحم زاتمم 2 1 * ىونين ةظفاحم ةيبرتل ةماعلا ةيريدملا 2 ءايزيفلا مسق – ةفرصلا مولعلل ةيبرتلا ةيلك لصوملا ةعماج صخلملا مت ةرولبل ةينونوفلا روصلا نيسحتو باسح ثحبلا اذه يف GaP ، ةثلاثلا ةعومجملا نمض ةرولبلا هذهو ةسماخلا . صئاصخلا دوجوبو ةيئابرهكوزيبلا ةدايز ىلع ةيباسحلا ةجلاعملا تدمتعا ةينونوفلا روصلل ةفوفصملا مجح ةدايزو ةلزتخملا نويلرب ةقطنم يف طاقنلا ددع . بستحت ) 46 1 137 ( 2 , 202 01 , No: 31 125X), Vol: Journal of Education and Science (ISSN 1812 138 ةينونوفلا روصلا نيوكتب ةقطنملا يف ةجوملا تاهجتم نم ةريبك دادعا ةلزتخملا ةجوملا تاهجتم لثمت يتلاو مادختساب تاهجتملا هذه ليوحتو اسم داجياو ةعومجملا عرس تاهجتم ىلا لفوتسيرك ةلداعم ةينونوفلا روصلا ليكشتل نيعم هاجتاب تاهجتملا هذه طق . دعأ لا ةغلب جمانرب MATLAB ةينونوفلا روصلا لثمت يتلا ةفوفصملا مجح ديدحتو ةلزتخملا ةقطنملا يف طاقنلا ددع ديدحت للاخ نم روصلا هذه باسحل طقاسملا هاجتا ىلا ةفاضا . لماعلا دوجو للاخ نم نوكي ةيئابرهكوزيبلا صئاصخلا ريثات دوجوب ةينونوفلا روصلا باسحلو k44 يذلاو دعي ةينونوفلا روصلا يف ةيئابرهكوزيبلا صئاصخلا ريثات ىدمل حضاو رشؤم . ةحضاو روص ىلع لوصحلل رثؤملا لماعلا نا جئاتنلا تنيب ةفوفصم مجح وه ملاعملا ةروصلا ددع نوكت امدنع نم ربكا طاقنلا 8 × 10 ددع لقي امدنع ةحضاو روص لوصحلا متي لاو ةطقن نع طاقنلا 10 ةطقن . :ةلادلا تاملكلا ا ،ةينونوفلا روصلا ةيئابرهكوزيبلا تا رولبل ـل ةينونوفلا روصلا ، GaP ح ،ةبعكملا تا رولبلا ، ةينونوفلا روصلا باس . :ةمدقملا نم ةيرا رحلا ةضبنلا براجت دعت ةبلصلا داوملا ةسا رد يف ةمهملا لئاسولا ، ةرا ","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46835889","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":"Nuclear abnormalities and Oxidative Stress Induced by Hookah (Shisha) in Male Human in Erbil City","authors":"Natheer J. Yaseen","doi":"10.33899/edusj.2022.132014.1197","DOIUrl":"https://doi.org/10.33899/edusj.2022.132014.1197","url":null,"abstract":"Nowadays hookah smoking has dramatically increased especially in the Middle East. Because Hookah tobacco contains many harmful substances, it has dangerous impacts on human beings. The goal of the current study is to examine the oxidative stress in blood and clastogenic effects of hookah smoking on exfoliated buccal cells. One hundred and twenty five healthy adult males were involved in this study. The participants were distributed into five groups: control, passive smokers, and three hookah smoker groups. Samples of blood from all groups were examined for Malondialdehyde (MDA) level and exfoliated buccal cells were examined thorough micronucleus (MN) test for frequencies of nuclear abnormalities including Micronucleus (MN), Binucleates (BN) and Karyolysis (KL), were evaluated as well. Frequencies of all nuclear abnormalities Micronucleus (MN), Binucleates (BN) and Karyolysis significantly increased in all exposed groups compared to the control group and the effect was exposure duration dependent. Malondialdehyde level also significantly increased in all exposed groups compared to the control group and the effect was exposure duration dependent.","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44562415","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 QOS IN NETWORKS WITH ACTIVE QUEUE MANAGEMENT ALGORITHMS","authors":"A. Ali","doi":"10.33899/edusj.2022.132790.1211","DOIUrl":"https://doi.org/10.33899/edusj.2022.132790.1211","url":null,"abstract":"Packets queuing and scheduling in network routers is a key point of overall network performance. Many applications, especially applications that require Quality of Services (QoS) need techniques to pass their packets throughout routers and control and/or avoid congestions in highly congested routes. Therefore, many Active Queue Management (AQM) algorithms have been developed to avoid or control congestion in routers and provide fairness among traffic flows. This paper provides an extensive evaluation performance analysis of three well-known AQM algorithms including RED, REM and traditional Drop-Tail with QoS application requirements. The evaluation performance is conducted by employing network simulator version 2 (NS2). The network performance is measured with Voice over Internet Protocol (VoIP) traffic and three performance metrics including throughput, latency, and PSD (Probability of Sequential Drop). The analysis shows no AQM algorithm achieves all the VoIP QoS requirements, A new AQM is needed to fulfil QoS requirements and manage queue to handle unresponsive flows.","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49161853","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":"Effect of aqueous and alcoholic extract of Eucalyptus camaldulensis Dehn leaves in growth of root rot fungi of Biota orientails L. in vitro","authors":"M. Younis, Anwer Al-khero","doi":"10.33899/edusj.2022.132290.1202","DOIUrl":"https://doi.org/10.33899/edusj.2022.132290.1202","url":null,"abstract":"Root Rot disease is one of important disease which caused great damage for Biota orientails and this was evident in the private forest nurseries in Mosul, for three nurseries in the Al-Faisaliah area, three nurseries in the Muthanna area, one nursery in the Mohandessin area, as well as the Nineveh horticultural station during the field survey, this was through October and December of 2017 and February August of 2018.fungi were recorded like Fusarium solani Mart isolation ratia 36.85% ,Macrophomina phaseolina Tassi Goid islalation ratia 22.34% and Rhzoctonia solani Khun islalation ratia 26.89% which Isolated from Biota orientails seedling . Results of pathogenicity tests showed Fusarium solani was had high pathogenicity (50%) Biota orientails seedling and the fungus was very effective at growth characteristics. study of Eucalyptus camaldulnsis leaves Extracts effect at the growth of Isolated fungi The results showed the superiority of the alcoholic extract in inhibiting the growth of the isolates fungi compared to the aqueous extract and for all concentrations except for the fungus R. solani, which was uniquely significantly inhibited by the effect of the aqueous leaf extract of Eucalyptus.","PeriodicalId":33491,"journal":{"name":"mjl@ ltrby@ wl`lm","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48615722","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}