Journal of Education Science最新文献

{"title":"A Comparative Morphological Study of the Genus Juniperus L. ( Cupressaceae) in North of Iraq","authors":"Dr.Haees Sayel Al Jowary, A. A. Al-Sharefy","doi":"10.33899/edusj.2020.127106.1073","DOIUrl":"https://doi.org/10.33899/edusj.2020.127106.1073","url":null,"abstract":"A new species Registration of juniper is Juniperus macrocarpa, permissions not previously registered in Flora of Iraq that were composed (Guest researchers and Ali alRawi,1966) so only two species of Juniperus oxycedrus and Juniperus polycarpos were registered at the time. The research included a classification of the species Juniperus which belong to the Cupressaceae family that grown a wild plants in north of Iraq, using the morphological characteristics of (3) species of veins mentioned in (7) sites distributed in provinces of (FNI,MAM and MSU )Nineveh, Dohuk and Sulaymaniyah.","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"105 1","pages":"154-176"},"PeriodicalIF":0.0,"publicationDate":"2020-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82234427","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 Taxonomic Study of Macro-and Micro Morphological Features of Fruits and Seeds Cultivars of the Species Belonging to the Genus Morus L. (Moraceae) Cultivated in the North of Iraq","authors":"Raad Hammad Al-Badrany, Aamer Al-mathidy","doi":"10.33899/edusj.2020.127107.1074","DOIUrl":"https://doi.org/10.33899/edusj.2020.127107.1074","url":null,"abstract":"The present research deals with the study of morphological characters of the fruits and seeds of the cultivars belonging to the species Morus alba L. Namely (ʽBeautiful Dayʼ, ʽBig Whiteʼ, ʽReaseʼ, ʽGreeceʼ, ʽPearlʼ, ʽBorder Sweetʼ, ʽPendulaʼ); Morus latifolia Poir (ʽKokuse Koreanʼ); Morus rubra L. (ʽAmarahʼ); Morus nigra L. (ʽShamiʼ); Morus macroura Miq (ʽKing Whiteʼ); ʽDwarfʼ and Morus hybrid (ʽTiceʼ, ʽWellingtonʼ) Which cultirated in North of Iraq. The study includes characters of the fruits (Shape, Color, Dimension, Size, Number of the fruitlet in the fruit) and the characters of the seeds (Shape, Color, Dimension, Number of the seeds in the fruit, and surface ornamentation). The results showed some changes in morphological characteristics of the fruits and seeds examined by light microscope (L.M), in addition to the surface ornamentation of the seeds examined by scanning electron microscope (SEM). They also showed five types of the surface ornamentation (Reticulate, Muricate, Foreate undulate, Polygonal, and Ruminate) for cultivars species studied, showed that importance value in the separation between the cultivars of the species studied belonging to the genus Morus L. Keyword: Morphological, Systematic, Fruits, Seeds, Genus Morus L. سنجلا عاونا فانصا روذبو رامثل ةقيقدلاو ةماعلا ةيرهظملا تافصلل ةيفينصت ةسارد Morus L. ( Moraceae قا رعلا لامش يف ةعورزملا ) 178 ةيفينصت ةسا رد لا تافصلل ةيرهظم ةقيقدلاو ةماعلا سنجلا عاونا فانصا روذبو رامثل Morus L. ( Moraceae قا رعلا لامش يف ةعورزملا ) 1 ينا ردبلا دومحم دمح دعر .د.م.أ يديضاعملا دومحم نسحم رماع قا رعلا / لصوملا ةعماج /ةفرصلا مولعلل ةيبرتلا ةيلك / ةايحلا مولع مسق dr.amer.1956@yahoo.com raadhamad42@gmail.com ملاتسلاا لوبقلا 31 / 05 / 2020 26 / 07 / 2020 DOI: 10.33899/edusj.2020.127107.1074 ةصلاخلا تافصلا ةسا رد يلاحلا ثحبلا لوانت ةيرهظملا ةقيقدلاو ةماعلا روذبو رامثل لأ فانص سنجلل عاونلأا Morus L. فانصلأاب تلثمت يتلاو ʽBeautiful Dayʼ و ʽBig Whiteʼ و ʽReaseʼ و ʽGreeceʼ و ʽPearlʼ و ʽBorder Sweetʼ و ʽPendulaʼ عونلل Morus alba L. فنصلاو ʽKokuso Koreanʼ عونلل Morus latifolia Poir و ʽAmarahʼ عونلل M. rubra L. و ʽShamiʼ عونلل Morus nigra L. نافنصلاو ʽKing Whiteʼ و ʽDwarfʼ عونلل Morus macroura Miq نافنصلاو ʽTiceʼ و ʽWellingtonʼ عونلل Morus hybrid قا رعلا لامش يف ةعورزملا . و ت ض تنم ةرمثلا يف تا ريمثلا ددعو اهمجحو اهداعباو اهنولو اهلكش ثيح نم رامثلا تافص ةسا ردلا تافصو ةدحاولا ا روذبل ةيحطسلا ةفرخزلا عونو ةدحاولا ةرمثلا يف روذبلا ددعو داعبلااو نوللاو لكشلا ثيح نم Seed Surface ornamentation جئاتنلا ترهظاو .اهل كلانه يف تا رياغت ضعب يتلا روذبلاو رامثلا تافص ( يئوضلا رهجملا مادختساب تصحف LM ) Light microscope نع لاضف ا نيب روذبلل يحطسلا ءاسكل ت فرخز يف فانصلأا اهت ةيحطسلا Surface ornamentation مادختسابو حساملا ينورتكللاا رهجملا Scanning Electron Microscope (SEM) تدجو ذإ يكبش حطس تاذ يهو عاونأ ةسمخب Reticulate معان يميلحو Muricate رقنم جومتمو Foreate undulate علضمو Polygonal بحسنمو Ruminate يف لزع يف ةيفينصت ةيمهأ اهل يتلاو ةسا ردلا ديق فانصلأا عونأ سنج ىلا ةدئاعلاو ةسوردملا عاونلأا نيب فانصلأا Morus L. . ةيحاتف","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"27 1","pages":"177-192"},"PeriodicalIF":0.0,"publicationDate":"2020-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91545560","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":"Preparation of Some Benzothiazole Polymers and Study Their Electrical Conductivity Properties","authors":"A. Khattab, Haitham Ahmed Ayoob, Laith Mohammed Altaan","doi":"10.33899/edusj.2020.126945.1066","DOIUrl":"https://doi.org/10.33899/edusj.2020.126945.1066","url":null,"abstract":"As the conjugated polymers are doped with some electron donor or acceptor dopants, their electrical conductivity increased thoroughly to about 10 Ω.cm. The doping of the polymers may give an n or p semiconductor characteristic according to the types of the dopants that are used. Within the frame of this work, four types of conjugated polymers with benzothiazole as a major moiety in their backbone have been prepared. The prepared monomers and polymers have been characterized by FTIR spectroscopy. Elemental analysis of the polymers (CHN) demonstrates their chemical structure while the DSC thermal analysis illustrates its Tg. The polymers were doped with two types of dopants, iodine and sodium iodide. The electrical conductivity of the doped polymers was measured with three probe cell. The results show increasing in the electrical conductivity with dopant concentration to some levels. The activation energy of the electrical conductivity process was also studied by measuring the electrical conductivity in different temperature. According to the magnitude of the activation energy, we can conclude that the chain flexibility is the dominate factor that influenced on electrical conductivity. Hall Effect and hot probe measurements reveal that the polymer can be considered as n or p type according to the type of the doping. It was concluded that the doping with iodine produced an n-type while the doping with sodium iodide produced the ptype.","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"23 1","pages":"140-153"},"PeriodicalIF":0.0,"publicationDate":"2020-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73987518","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":"Investigating the Numerical solution of the BoltzmannTransport Equation in silicon in Momentum Space Using Computational Systems of Different Dimensions","authors":"M. Hussien, M. Mahmood","doi":"10.33899/edusj.2020.126828.1057","DOIUrl":"https://doi.org/10.33899/edusj.2020.126828.1057","url":null,"abstract":"The Boltzmann transport equation is the basic equation for solving the transport of charge carrier (electrons, holes) problems in semiconductor devices. The distribution function has been obtained from the solution of this equation. The distribution function is important in calculating semiconductor properties, which can be used to calculate the average electron energy, the charge carrier concentration, and other properties. In this work the semi-classical Boltzmann transport equation in silicon was solved using analytical / numerical methods in steady state case in momentum space. The analytical solution is requires expressing the distribution function using Legendre polynomials expansion the first two terms of the expansion, by taking into account the effect of both acoustic elastic scattering and nonelastic scattering in addition to the effect of nonparabolic energy band structure. In order to obtain the numerical solution of Boltzmann transport equation the finite difference method is used. The differential equation is transformed to linear difference equation which can represented by matrices. Numerical systems with different dimensions are designed to calculate the distribution function with the least possible time to maintain the accuracy of the solution for different applied electric field which represent the low and high field regions at temperatures T= (77, 300) K. The obtained results showed good agreement with published data that used other calculation methods such as the Monte Carlo simulation method for all the system used in this work. Keyword: Boltzmann equation in Silicon, numerical solution for Boltzmann transport equation, Legendre polynomial expansion method نوكيلسلا يف لاقتنلال نامزتلوب ةلداعمل يددعلا لحلا ءاصقتسا يف تاموظنم مادختساب مخزلا ءاضف ةيباسح .ةفلتخم داعبأب 109 نوكيلسلا يف لاقتنلال نامزتلوب ةلداعمل يددعلا لحلا ءاصقتسا يف تاموظنم مادختساب مخزلا ءاضف ةيباسح .ةفلتخم داعبأب دومحم دجام دومحم نيسح حلاص دمحم زاتمم ءايزيفلا مسق ةفرصلا مولعلل ةيبرتلا ةيلك − لصوملا ةعماج momtaz_hussien@uomosul.edu.iq mahmood.majed.mahmood@gmail.com ملاتسلاا لوبقلا 24 / 03 / 2020 22 / 07 / 2020 DOI: 10.33899/edusj.2020.126828.1057 صخلملا لئاسم لحل ةمدختسملا ةيساسلاا ةلداعملا نامزتلوبل لاقتنلاا ةلداعم دعت نورتكللاا( ةنحشلا لماح لاقتنا ، )ةوجفلا يف طئابن أ ةلداعملا هذه لح للاخ نم عيزوتلا ةلاد ىلع لوصحلا نكميو تلاصوملا هابش ، باسح يف ةمهم عيزوتلا ةلاد دعت اهمدختسا نكمي يتلا ،تلاصوملا هابشأ صئاصخ طسوتم باسح يف ةقاط نورتكللإا لا نم اهريغو ةنحشلا لماح زيكرتو خ صاو . ةيليلحت ةقيرط مادختساب نوكيلسلا يف نامزتلوبل ةيكيسلاكلا هبش لاقتنلاا ةلداعم لح مت ثحبلا اذه يف / ةلاح يف ةيددع را رقتسلاا مخزلا ءاضف يف . عيزوتلا ةلاد نع ريبعتلا يليلحتلا لحلا بلطتي لا دودح تاددعتم مادختساب ب كلذو ردنج أ لولاا نيدحلا ذخ ا نم لك ريثأت رابتعلاا رظنب ذخلاا عم ردنجلا تاددعتم تادادتما نم يناثلاو لا ةنرملا ريغ ةراطتسلاا و ةنرملا ةيعمسلا ةراطتس إ ةفاض ىلا قورفلا ةقيرط مدختسن نامزتلوب ةلداعمل يددعلا لحلا ىلع لوصحللو .ئفاكملا ريغ ةقاطلا ةمزح بيكرت ريثأت ةددحملا ذا تافوفصملاب اهليث","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"8 1","pages":"108-123"},"PeriodicalIF":0.0,"publicationDate":"2020-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79649326","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 Morphological Study of Pollen Grains and Seeds of Cultivars from the Species Pyrus malus L. and Pyrus communis L. Cultivated in Northern of Iraq","authors":"M. Shehab, Amer Al-Maathidy","doi":"10.33899/EDUSJ.2020.127063.1069","DOIUrl":"https://doi.org/10.33899/EDUSJ.2020.127063.1069","url":null,"abstract":"The present research includes a comparative morphological characters of pollen grains and seeds of (8) cultivars belonging the species Pyrus malus L. namely (\"EarlyGold\", \"GrannySmith\", \"Royal Cala\", \"Red Delicious\", \"Golden Delicious\", \"Honey Crisp\", \"Mcintosh\", Cox\") and (6) Cultivars belonge to the species Pyrus communis L. namely (\"Coneference\", Decana\", \"Bonica\", \"Alkhatuni\",\"Alothmani\", \"William) which cultivated in northern of Iraq. Were examined by light and scanning electron microscope (SEM). The result of pollen grains showed that pattern tricolporate and the shape in polar view triangular or spherical -triangular or tetrangular but in equatorial view spherical or ovate and surface configuration was striate in all cultivars of the species. The morphological characters of seeds (Shape, Color, Dimension of width and Length, Number of seeds in fruit), in addition to indumentum were found to be diagnostic value for separation cultivars from the two species. In addition to its surface configuration, it was Striate in \"EarlyGold\", \"RoyalCala\", \"Honey Crisp\", \"Mcintosh\" and \"Cox\" and Striate papillae in GrannySmith, while the \"Coneference\", \"Decana\" and \"Bonica, Alkhatuni, and Alothmani had a surface configuration pitted, and Irregular Reticular in Red Delicious and Reticulate papillae in cultivar William, while Golden Deliciou was unique as having an alveolate surface, The quantitative and qualitative morphological characters of pollen grains and seeds were found to be diagnostic value for separation cultivars from the species. Keyword: Pyrus L., Pollen grains, seeds. ةسا رد ةيرهظم حافتلا فانصا روذبو حاقل بوبحل ةنراقم Pyrus malus L. ىرثمكلاو Pyrus communis L. امش يف ةعورزملا ل قا رعلا باهش دمحم رمع ىنم 1 * ، يديضاعملا دومحم نسحم رماع 2 1 و 2 مولع مسق قا رعلا ،لصوملا ،لصوملا ةعماج ،ةفرصلا مولعلل ةيبرتلا ةيلك ،ةايحلا Journal of Education and Science (ISSN 1812-125X), Vol: 29, No: 4, 2020 (90-107) 91 ةصلاخلا : ة ر ملا ا مممصلل ة ةافم ةيةيرمممصت ةمممتا ةس رلاحلا لح لا لممممضت حافللا بوبحل Pollen grains ةوذبلاو Seeds مممممممممممممممممل 8 ) حامممممم تلا لم اممممممرمممممممممممممصأ Pyrus$malus$L. \" ره EarlyGold \"و \" GrannySmith \" \"و RoyalCala \"و \" Red$Delicious \" \"و Golden$Deliciou \"و \" HoneyCrisp \"و \" Mcintosh \" \"و Cox \" و 6 ر م لا لم امرمممممممممممممصأ ) Pyrus communis L. رهو \" Coneference \"و \" Decana \"و \" Bonica \"و \" Alkhatuni \"و \" Alothmani \"و \" William \" امم ممممممممممممما رف ةممعوةزملا ،قا رعلا رتلا ر وممممضلا ر ملا ما رتممممتاد تممممصحف Light microscope ممممتاملا ر ورت للاا ر ملاو Scanning electron microscope (SEM) بوف لاو ساقلاا ةيديد خا ر لم ا اد حافللا بوبح ةمممممممممتا ةس ج ات ر ظاو Tricolporate رب فلا ر رملا رف ا لمممممممممماو Polar view ةم ل م Trangular ةم ورك وأ – م ةم ل Spherical-triangular وا ام اوزلا ةمييامبة Tetrangular ةميريعم ىلإ رفو ر اوتمممممممتلاا ر رملا Equatorial view ة ورك Spherical ة ومممممممضيب وا Ovate ة رم ةيح مممممممسلا ا تفرقخو Striate عيمج رف ليعورلا ارممصأ اهس عو ا ولو ا لممماو اهساعدا ليح لم ةوذبلل ة ر ملا ا ممصلا ت","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"9 1","pages":"90-107"},"PeriodicalIF":0.0,"publicationDate":"2020-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79663614","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":"Calculation Values of potential Stickiness (S*) and Apparent Activation Energy (AAE) from Adsorption of Some Aromatic Carboxylic Acids on the Surface of a New Adsorbent Substance","authors":"Khaleel Ibrahim Alniemi","doi":"10.33899/EDUSJ.2020.126168.1021","DOIUrl":"https://doi.org/10.33899/EDUSJ.2020.126168.1021","url":null,"abstract":"This study includes calculation of the potential stickiness (S) and apparent activation energy (AAE) by the adsorption process of some aromatic carboxylic acids using sand (clay) as a new adsorbent material. This clay was collected from dust storms coming to the city of Mosul. The obtained results showed that physical adsorption which is achieved by applying the modified Arrhenius equation through the values of (S *) and (AAE) which have low values and bear a negative charge is preferable. Adsorption process occurs in two-step mechanism. The effect of the concentration of the acidic solution, temperature and the substituted groups SO3, NO2, OH, NH2 on the aromatic ring) was studied to clarify the nature of the association between organic carboxylic acid anions and inorganic metal oxides to form a complex surface model. The study concluded that the values of (S *) for all acids were less than one and they were more than the value of zero. Also, the values of (AAE) gave an indication that the adsorption process is exothermic and spontaneous. The presence of water molecules and (H) ions in solution is very important to change the nature of the clay surface. Keyword: Potential stickiness, apparent activation energy, aromatic carboxylic acids, new adsorbent material. Introduction: Adsorption is an effective and important method to remove pollution. It is simple and low-cost [1][2]. The substituted benzoic acids (5SSA, ONBA, OABA) are used in chemical industry, these acids are considered harmful substances for humans [3] [4] [5]. As an adsorbent material, Clay, consists of poly metal oxides from a rocky source [6] and different inorganic materials [7]. Metal oxides on the clay surface contain negative polar charges [8] as active sites that attract positive ions by absorbing them through physical forces. This type of attraction is called physical adsorption, while the chemical absorption occurs when the surface contains unsaturated electrons. Knowledge of adsorption mechanism is important for designing physical type of adsorption systems, through which absorbent material can be recovered and the process accomplished in an easy and Ind Calculation Values of potential Stickiness (S*) and Apparent Activation..... 78 inexpensive way. The (AAE) values represent the desired degree of the optimum temperature to achieve the complete adsorption process. Whether it occurs spontaneously or not and whether the adsorption process is endothermic or exothermic, the positive or negative values of (AAE) give a good description of the thermodynamic condition for the adsorption process. Materials and Methods : 1The chemicals were used without further purification and they were supplied by Fluka and BDH companies. 2The new clay was used as an adsorbent material. This clay was collected (using clean and dry plastic containers) from dust storms that hit the city of Mosul. The clay has been sifted (filtered out) using a sieve (75) micrometer and the surface area was (3434) cm","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"74 1","pages":"76-89"},"PeriodicalIF":0.0,"publicationDate":"2020-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81299719","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":"Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine","authors":"R. Al-Luhaiby, Mohammed S. Al-Enizzi","doi":"10.33899/EDUSJ.2020.126895.1062","DOIUrl":"https://doi.org/10.33899/EDUSJ.2020.126895.1062","url":null,"abstract":"A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×10 l.mol for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method.","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"67 1","pages":"62-75"},"PeriodicalIF":0.0,"publicationDate":"2020-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78602869","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 Friendly Environment Approach for determination of paracetamol","authors":"H. Mahmood","doi":"10.33899/edusj.2019.125964.1011","DOIUrl":"https://doi.org/10.33899/edusj.2019.125964.1011","url":null,"abstract":"This paper involves a determination of paracetamol using less environment harmful reagent; the hydroxy analog of the pharmaceutical naproxen replaces the chemical reagent in which it is used as a coupling agent for the diazotized p-aminophenol (the hydrolysis product of paracetamol).The paper offers a determination of an analgesic paracetamol in the presence of high content of another analgesic . Paracetamol azo-dye formed shows the higher absorption peak at 500 nm. Absorbanceconcentration relation is liner over the range from 10 to 650 μg/20ml, (i.e. 0.5-32.5 ppm) with a good sensitivity (molar absorptivity 1.2x10 l.mol.cm) ; good precision (RSD better than ±0.275%) and high accuracy (relative error less than + 0.77%), Sandell's sensitivity index is 0.0124μg.cm, the calculated limit of detection (LOD) is 0.0030 μg/ml and the evaluated limit of quantitation (LOQ) is 0.0101 μg/ml. The application of the method exhibits a successful results for determination of paracetamol in dosage forms and it's already applied for the determination of paracetamol in presence of naproxen .","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"52 1","pages":"230-240"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74708203","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":"Rheological modifications of the asphalt-polymer system using microwave technology","authors":"Rand Raad Matti, K. Owaid","doi":"10.33899/edusj.2020.165302","DOIUrl":"https://doi.org/10.33899/edusj.2020.165302","url":null,"abstract":"This research aimed to prepare different types of asphaltic materials having a good rheological properties compared with the non-modified asphaltic materials. Different polymers and microwaves were used to prepare the modified asphalt in different ways. The first method is based on the modification of asphalt with reclaim tire rubber using anhydrous aluminum chloride catalyst at 360 watt at different times, The second method depends on the same principle of the first method with the introduction of sulfur as an additive and the third method is based on the same principle of the first method but the change of polymer added to the polyamethyl methacrylate and with the introduction of sulfur as an additive. The latter method is the same principle of the first method but the change of polymer added to mixtures of (1:1)(polymer_polymer)(recycled tire rubber polyamethyl methacrylate)with the introduction of sulfur as an additive. The above methods we obtained asphaltic materials which can be used in paving and mastic depending on the measured (ductility, penetration , softening point). Key world: Rheological Modification, Microwave, Polymers , Asphalt. Journal of Education and Science (ISSN 1812-125X), Vol: 29, No: 2, 2020 (26-44) 27 تلفسا( ماظنل ةيجولويرلا تاريوحتلا – فيووركياملا ةينقت مادختساب )رميلوب يتم دعر دنر , ديوع دمحا دلاخ ءايميكلا مسق , ةفرصلا مولعلل ةيبرتلا ةيلك , ةعماج لصوملا قا رعلا ,لصوملا , ملا ةصلاخ ةيتلفسلإا داوملا نم ةفلتخم عاونأ ريضحت ىلإ ةسا ردلا هذه فدهت , يتلا عاونلأا صخلأابو ديج ةيجولوير صاوخ كلتمت ة ةيتلفسلإا داوملا عم ةنراقملاب .ةروحملا ريغ و مدِختُسا ةفلتخم تا رميلوب تَ ةينقتو ركياملا و ضحتل فيو ري كلذو روحمُلا تلفسلإا ةفلتخم بيلاسأب دمتعي , بولسلاا لولأا ىلع تا راطلإا طاطم عم تلفسلإا ريوحت مادختساب داعمُلا موينمللأا ديرولك زافح يئاملالا ( ةقاط دنع 360 ) طاو ةفلتخم نامزأبو , ىلع دمتعيف يناثلا بولسلأا امأ سفن أدبم بولسلاا لأا لو لاخدإ عم يفاضإ ةدامك تيربكلا ة دمتعي نيح يف , لاثلا بولسلاا ث أدبم سفن ىلع لأا إ فاضملا رميلوبلا ريغتب نكلو لولأا بولس ىل ليثم يلوبلا تلايركاثيم , إ عم لاخد تيربكلا ةيفاضإ ةدامك , أ ام لأا لأا بولس ريخ لأا أدبم سفن وهف لأا بولس لو نكل ريغتب إ فاضملا رميلوبلا ىل م داعملا تا راطلإا طاطم( نم جئا ز – يلوب ليثم )تلايركاثيم ةبسنب 1 : 1 رميلوب( _ )رميلوب إ عم لاخد تيربكلا ةيفاضإ ةدامك , و بيلاسلأا نم لوصحلا مت أ جذامن ىلع هلاع إ ةيجولوير تافصاوم تاذ ةيتلفس , ملإاب اهمادختسا ناك و طيلبتلا لاجم يف تعا ةبوطرلل ةعنام داومك اهمادختسا نكمي ىرخأ ا رجا مت يتلا تاسايقلا ىلع اًدام ؤ ه ةيذافنلاو ةلاطتسلاا( ا .)ةنويللا ةجردو ةيحاتفملا تاملكلا : تا ريوحتلا لويرلا تا رميلوبلا ,فيووركياملا ,ةيجو لإا , .تلفس ةمدقملا تلفسلإا وه نع ةرابع ةينوبراكورديه ةدام وأ دوسأ نول تاذ قماغ ينب ذ ي رياطت ةيلباق ةليلق ًايبسن [1] , بلص اذ هنوكب زاتميو بلص هبش وأ زل و ةج ةيلاع , ةرا رحلل ةعواطملا داوملا نم ربتعيو أ يأ , هن اسلا ةلاحلا ىلإ لوحتي يف ةلئ ةعفترملا ةرا رحلا تاجرد إ دوعيو ةضفخنملا ةرا رحلا تاجرد يف ةيعيبطلا ةبلصلا هتلاح ىل . ةماع ةروصب نوكتي تلفسلإا نم تابكرم نوبراكورديه ةي ةيموراو ةينيثفنو ةينيفا راب تاذ قت ةيلاع ةيئيزج نا زوا نم اه","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"50 2 1","pages":"26-44"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81088244","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":"Using of Acetylacetone-formaldehyde Reagent in Spectrophotometric Determination of Aniline in Various Water Samples","authors":"N. Othman, S. Zakaria, M. Abdulla","doi":"10.33899/edusj.2020.126192.1022","DOIUrl":"https://doi.org/10.33899/edusj.2020.126192.1022","url":null,"abstract":"A simple and accurate spectrophotometric method for the estimation of aniline in various water samples was done. The method was based on the condensation reaction of acetyl acetoneformaldehyde (AC-FA) reagent with aniline. to produce a yellow colored product, with maximum absorption at 417 nm, which has good stability at room temperature and it is very soluble in water (the medium of reaction). Beer's law is applied in the concentration range of 2.5 to 50 μg. ml of aniline with a molar absorptivity 3.864×10 l.mol.cm and Sandell's sensitivity index 0.0241 μg.cm , a relative error of – 0.51 to +4.15 % and a relative standard deviation of ±0.78 to ±1.28% depending on the concentration level. The study also included the effect of organic compounds on the recovery of aniline in water samples. Aniline is the simple type of primary aromatic amines as it enters into many industrial fields and is considered as an important material. Aniline regarded as major pollutant of water, thus, its estimation was studied in different samples of water such as river, tap and Zamzam well waters.","PeriodicalId":15610,"journal":{"name":"Journal of Education Science","volume":"104 1","pages":"241-249"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79190197","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}