Ibn AL-Haitham Journal For Pure and Applied Sciences最新文献

The Effect of Partial Substitution of Ge-S-Cd Alloys on the Density of Energy States 部分替代 Ge-S-Cd 合金对能态密度的影响

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3314

Zainab Abd Al-hadi, Kareem Ali Jasim

{"title":"The Effect of Partial Substitution of Ge-S-Cd Alloys on the Density of Energy States","authors":"Zainab Abd Al-hadi, Kareem Ali Jasim","doi":"10.30526/37.1.3314","DOIUrl":"https://doi.org/10.30526/37.1.3314","url":null,"abstract":"Five samples of the ternary alloy Ge-S-Cd were created using the melting point method, and the effects of partially substituting cadmium for germanium were determined. and partial substitution of germanium by cadmium was used to study the change in electrical conductivity. Electrical experiments were performed on Ge35-xS65Cdxternary alloy with x = 0, 5, 10, 15, and 20. It was discovered that the conductivity (σdc) rises with rising temperature in all samples under experiment. This confirms that the samples have semiconductor behavior. It has been observed that there are three regions of electrical conductivity in the electrical conductivity curve at low, moderate, and high temperatures. The preexponential elements and effective energies of each of the three conduction regions were calculated for each of the Cadmium values. It was found that all of them were impacted by a rise in the value of cadmium in the ingot. A numerical analysis of the conductivity equation was also performed to calculate the energy of the expanding states' density in local states and at the Fermi level. It has been observed that all of the values of samples change with the rising value of cadmium concentration.","PeriodicalId":511333,"journal":{"name":"Ibn AL-Haitham Journal For Pure and Applied Sciences","volume":"9 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140501344","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}

引用次数: 0

A Morphological and Anatomical Study of Tamarix aphylla (Tamaricaceae) in Iraq Central Region 伊拉克中部地区 Tamarix aphylla（柽柳科）的形态学和解剖学研究

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3291

Anwar Naji Al-Msary, Mazin Nawaf Aboud Al-Ani

{"title":"A Morphological and Anatomical Study of Tamarix aphylla (Tamaricaceae) in Iraq Central Region","authors":"Anwar Naji Al-Msary, Mazin Nawaf Aboud Al-Ani","doi":"10.30526/37.1.3291","DOIUrl":"https://doi.org/10.30526/37.1.3291","url":null,"abstract":"The Tamarix aphylla is a wild perennial shrub with erect stems that are long and glabrous. They have leaves that are simple, alternate, sheathed, and the apex of the blade is acuminate. And a scaly clawed bract and the the inflorescences were simple, spike-like. The pistil consists of ovary pyramidal, 3 styles, and 3 stigmas. The androecium consists of five stamens that are antisepalous. The perianth was distinct with five sepals and five petals. The fruits were capsule-shaped, pyramidal, and smooth. The seed has an apical pappus of unicellular hygroscopic hairs; endosperm is absent. The anatomical study of the leaves contained a uniseriate epidermis consisting of one layer of elongated cells covered by a layer of papillary cuticle. The upper epidermis cells are larger than the lower epidermis cells, and the stomata were anomocytic. The mesophyll consists of one layer of palisade cells and several layers of irregular, spongy cells. The stem epidermis is uniseriate, which is a single row of circular to ovate cells covered by a layer of papillary cuticle. The cortex is composed of two tissues, collenchyma and parenchyma; lamellate collenchyma tissue consists of 1-2 layers of cells; and parenchyma tissue consists of several layers of cells. The vascular bundle was ovate. The pith tissue consisted of circular parenchyma cells that were thin-walled and occupied the central part of the stem. ","PeriodicalId":511333,"journal":{"name":"Ibn AL-Haitham Journal For Pure and Applied Sciences","volume":"175 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140501436","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}

引用次数: 0

Seasonal Variations Of Attached Cyanophyceae Algae on Cocreate Brideges In Tigress Rivere From Baghdad 巴格达 Tigress Rivere 河水中附着蓝藻的季节性变化

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3247

Buthaina Abdul Aziz Hassan Al Magdamy, Zainab Faleeh Moussa

{"title":"Seasonal Variations Of Attached Cyanophyceae Algae on Cocreate Brideges In Tigress Rivere From Baghdad","authors":"Buthaina Abdul Aziz Hassan Al Magdamy, Zainab Faleeh Moussa","doi":"10.30526/37.1.3247","DOIUrl":"https://doi.org/10.30526/37.1.3247","url":null,"abstract":"The attached Cyanophyta community is a model for monitoring aquatic systems and interpreting environmental change in aquatic systems. The present study aims to conduct a seasonal study on Cyanophyta attached to the concrete abutments of three bridges (Al-Jadriya Bridge, Bab Al-Moadam Bridge, and Al-Muthanna Bridge) in the Tigris River within the city of Baghdad, central Iraq (from October 2021 to June 2022). The study included the quality of Cyanophyta and, the eleven environmental parameters (water temperature, electric conductivity, salinity, pH, total alkalinity, Calcium, Magnesium, dissolved oxygen, total dissolved solids, total phosphorus, and total nitrogen). Monthly samples were taken from the water under each bridge from three sampling sites in the river, and the results were presented as four seasons. A total of 45 Cyanophyta taxa were identified in the three orders. Order: Chroococcales 11%; Order: Oscillatoriales 64%; Order: Nostocales 25% dominance of Oscillatoriales from the second site, and the highest number of species recorded in the autumn. The study showed clear differences in the total number of algal species attached to different sites. The study was able to add a new record species to the Iraqi algae flora, which is Lyngbya sordida Gomont.","PeriodicalId":511333,"journal":{"name":"Ibn AL-Haitham Journal For Pure and Applied Sciences","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140502139","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}

引用次数: 0

Synthesis, Biological and Medicinal Evaluation of New Boric Acid Ester Derived From Antibiotic Drug with Some of Its Metal Complexes 从抗生素药物衍生的新型硼酸酯及其金属络合物的合成、生物学和药学评价

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3261

Simaa Safaa Mahmoud, Asmaa Mohammed Noori

引用次数: 0

Theoretical Study of the Lasing Output for a Quasi-Three-Level Operation in Nd 3+:YAG Thin- Disk Laser Nd 3+:YAG 薄盘激光器中准三电平工作的激光输出理论研究

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3353

Manahil Ameen, Mudhir Shihab Ahmed

{"title":"Theoretical Study of the Lasing Output for a Quasi-Three-Level Operation in Nd 3+:YAG Thin- Disk Laser","authors":"Manahil Ameen, Mudhir Shihab Ahmed","doi":"10.30526/37.1.3353","DOIUrl":"https://doi.org/10.30526/37.1.3353","url":null,"abstract":"In this research, the effect of each of the concentrations ( Nd+3) was studied (N) the thickness of the thin disk (d) the number of times that the pumping beam passes through the effective medium of this laser (Mp) the reflectivity of the laser output mirror (R 2) The losses of the effective medium (L) and the pumping power used in achieving the reverse qualification (PP) on each of the pumping threshold capacities (Pp.th) and the output power of the laser (Pout) and the efficiency (ŋ) in Nd3+ thin-disk lasers (TDLs) pumping quasi-three-level With continuous operation (cw), at room temperature, and in the Gaussian mode (TEM00),\u0000We found under these operating conditions for this laser design that each of the (Pout) and (ŋ) increases by increasing each of (N), (d), (MP), and (R2), while the ( pp.th) decreases with this increase. We also found that as the losses (L) increases (pout) and (ŋ) decrease, and (pp.th) increase, as for increasing the pumping capacity, it leads to an increase in (Pout) only. Both (Pout) and (ŋ) are not affected by such an increase. In light of these results, the typical values for these coefficients were determined, and then you get the highest value for pout and (ŋ) the lowest value for (pp.th) for this laser design under the operating conditions that were adopted in this research.","PeriodicalId":511333,"journal":{"name":"Ibn AL-Haitham Journal For Pure and Applied Sciences","volume":"128 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140501746","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}

引用次数: 0

Synthesis of New Bismaleimide Homopolymer and Copolymers Derived from 4, 4ˉ-Bis[4-(N-maleimidyl) Phenyl Schiff Base] Tolidine 由 4,4ˉ-双[4-(N-马来酰亚胺基)苯基席夫碱]托利定衍生的新型双马来酰亚胺均聚物和共聚物的合成

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3264

Mustafa Salah Hasan, A. Al-Azzawi

{"title":"Synthesis of New Bismaleimide Homopolymer and Copolymers Derived from 4, 4ˉ-Bis[4-(N-maleimidyl) Phenyl Schiff Base] Tolidine","authors":"Mustafa Salah Hasan, A. Al-Azzawi","doi":"10.30526/37.1.3264","DOIUrl":"https://doi.org/10.30526/37.1.3264","url":null,"abstract":"Polyimides are widely used in high-temperature plastics, adhesives, dielectrics, photoresists, nonlinear optical materials, separation membrane materials, and Langmuir-Blodgett (LB) films. They are commonly regarded as the most heat-resistant polymers. This work involved the synthesis of a new bismaleimide homopolymer and copolymer by performing many steps. The synthesis of compound (1) (bis [4-(amino phenyl) Schiff base] tolidine) via condensation of o-tolidine with two moles of 4-aminoacetophenone. Secondly, compound (1) was combined with maleic anhydride to form compound (2) (4, 4ˉ-bis[4-(N-maleamic acid) phenyl Schiff base] toluidine). Thirdly, a dehydration reaction was carried out affording compound (3) (4,4ˉ-bis [4-(N-maleimidyl) phenyl Schiff base] toluidine). Compound (3) represents the new vinylic monomer, which was successfully introduced in addition to homopolymerization and copolymerization with selected vinylic monomers, affording homopolymer (4) and copolymers (5, 6), respectively. The new homopolymer and copolymers showed good fusibility and solubility in many organic solvents, leading to easy processing and expected to serve a broad spectrum of applications.","PeriodicalId":511333,"journal":{"name":"Ibn AL-Haitham Journal For Pure and Applied Sciences","volume":"153 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140501890","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}

引用次数: 0

Modification, Characterization of New Thiazolidinone and Oxazolidinone Derived from Levofloxacin and Evaluation of Anti-Oxidant 由左氧氟沙星衍生的新型噻唑烷酮和噁唑烷酮的改性、表征及抗氧化评估

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3240

Mustafa Moaied Rabeaa, Muna Ismael Khalaf, Farouk Abdulla Kandil

{"title":"Modification, Characterization of New Thiazolidinone and Oxazolidinone Derived from Levofloxacin and Evaluation of Anti-Oxidant","authors":"Mustafa Moaied Rabeaa, Muna Ismael Khalaf, Farouk Abdulla Kandil","doi":"10.30526/37.1.3240","DOIUrl":"https://doi.org/10.30526/37.1.3240","url":null,"abstract":"The research study included the synthesis of a new series of heterocyclic derivatives containing the antibiotic Levofloxacin. The first way provides for the reaction of Levofloxacin with thionyl chloride in benzene as a solvent to give an acid chloride derivative. A new class of acid hydrazide synthesized from Levofloxacin was studied. Schiff bases were produced via the reaction of acid hydrazide with substituted aromatic ketones in methanol. The next stage involved the response of Schiff bases with thioglycolic acid and mono chloroacetic acid in DMF to produce derivatives of the antibiotic levofloxacin that have five heterocyclic members, including the derivatives thiazolidine-4-one and oxazolidine-5-one. The FTIR, 1HNMR, and 13CNMR spectra methods were used to confirm the structures of newly synthesized compounds. Also, the antioxidant properties of the synthetic compounds were evaluated in vitro. According to this study, levofloxacin-derived compounds have higher antioxidant capacities than ascorbic acid (vitamin C), and the medication also acts as an anti-inflammatory for respiratory infections.","PeriodicalId":511333,"journal":{"name":"Ibn AL-Haitham Journal For Pure and Applied Sciences","volume":"9 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140501980","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}

引用次数: 0

Glutathione Mediates Growth Regulation of Chickpea Plant Cicer arietinum and Mitigates Salinity Stress. 谷胱甘肽介导鹰嘴豆植物 Cicer arietinum 的生长调节并减轻盐度胁迫。

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3404

A. G. M. Al-Kazzaz, E. H. Al-Hayany, Rahaf Wail Attarbashi, Phanom Sutthisaksopon

引用次数: 0

Adhesion, roughness, wettability, and dielectric strength of elastomers liquid blends for high-density fiberboard wood adhesive 用于高密度纤维板木材粘合剂的弹性体液体混合物的附着力、粗糙度、润湿性和介电强度

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3346

Seenaa Hussein, Maha K. Majeed

{"title":"Adhesion, roughness, wettability, and dielectric strength of elastomers liquid blends for high-density fiberboard wood adhesive","authors":"Seenaa Hussein, Maha K. Majeed","doi":"10.30526/37.1.3346","DOIUrl":"https://doi.org/10.30526/37.1.3346","url":null,"abstract":"In the present study, the physical characteristics of elastomer (EL) blend with natural polymers such as polyvinyl alcohol (PVA), Dexrin (D), Arabic gum (AG), and corn starch (CS) based on high-density fiberboard wood adhesives were investigated. The EL blends were prepared by dissolving AG, D, PVA, and CS in deionized water at 70 °C for 1 h under magnetic stirring continuously until the solution was clear, and blends were made with a weight of 60/40 (w/w); then were cast into a mold with a 20 cm diameter and left at room temperature for 24 h to ensure complete water removal and drying of the samples. The prepared EL and EL blend structures, adhesion strengths, roughness, wettings, and dielectric strengths, were investigated. The modified EL blend reveals a 144 MPa for pull-off strength and 770.8 N for shear strength for high-density fiberboard (HDF) wood as a substrate to the EL/AG, respectively. The surface roughness and contact angle of the EL/PVA mixture were found to be high, measuring 4.57 µm for roughness and shows the water contact angles for the samples. An increase in the contact angle of the El/AG blend where reached to(83.94˚) was observed due to the decrease in the –COOH and OH groups present in the backbone of the arabic gum. The greatest dielectric strength for EL/AG was reported to be 18.62 kV/mm at 0.5 kV/s and 22.77 kV/mm at 5 kV/s.and optical microscoby image for break down region was shown the carbonization in the break down point as aresult of carashing polymers chains, also micro cracks occuring forspecimens and this cracks extends directly from the breakdown region","PeriodicalId":511333,"journal":{"name":"Ibn AL-Haitham Journal For Pure and Applied Sciences","volume":"20 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140502286","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}

引用次数: 0

Synthesis and Characterization of Proteolytic Enzyme Loaded on Silver Nanoparticles 银纳米粒子上负载的蛋白水解酶的合成与表征

Ibn AL-Haitham Journal For Pure and Applied Sciences Pub Date : 2024-01-20 DOI: 10.30526/37.1.3300

Hanady Salim Al-Shmgani, Mohammed A. Ashij, Khalil A. A. Khalil, H. A. Mohammed

{"title":"Synthesis and Characterization of Proteolytic Enzyme Loaded on Silver Nanoparticles","authors":"Hanady Salim Al-Shmgani, Mohammed A. Ashij, Khalil A. A. Khalil, H. A. Mohammed","doi":"10.30526/37.1.3300","DOIUrl":"https://doi.org/10.30526/37.1.3300","url":null,"abstract":"Bromelain is a proteolytic enzyme rich in cysteine proteases, extracted from the stem and fruit of pineapple (Ananas comosus). There are several therapeutic applications of the bromelain enzyme, where it has anti-inflammatory, anti-cancer, and antimicrobial activity, reduces joint pain, and accelerates wound healing. In the current study, bromelain enzyme was loaded on silver nanoparticles (Br-AgNPs) prepared using the citrate-reduction Turkevich method. Different characterization analyses were performed, including UV-Vis spectrophotometers, FTIR, SEM, and XRD analyses. Moreover, the antioxidant activity of prepared Br-AgNPs was evaluated by DPPH assay. The results of UV-Vis showed a peak at 434 nm, which referred to the AgNPs formation, and FTIR results revealed groups of (C=O, C=C) at 1519.91 and 1539.20, respectively, and the amine group at 1384.89 and the flavonoids group at 1357.89. SEM results exhibit that the synthesized Br-AgNPs were spherical in shape, with average sizes of about 84.73 nm. Also, the AgNPs were crystalline in nature with face-centered cubic symmetry. The synthesized BR-AgNPs showed strong in vitro antioxidant activity in a dose-dependent manner. In conclusion, successfully synthesized silver nanoparticles and bromelain had a potent antioxidant effect and may be a possible therapeutic agent for many diseases in the future.","PeriodicalId":511333,"journal":{"name":"Ibn AL-Haitham Journal For Pure and Applied Sciences","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140502351","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}

引用次数: 0