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Analytical Method for Determining the Parameters of the Nubian Aquifer, Farafra Oasis, Western Desert, Egypt 确定埃及西部沙漠法拉法拉绿洲努比亚含水层参数的分析方法
Pub Date : 2022-05-01 DOI: 10.21608/aunj.2022.234653
Saleh Dabaa, A. Sefelnasr, A. Omran, A. A. Ebraheem
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引用次数: 0
Numerical Site Spectral Amplification Due to Structural Control of Shallow Faults in Wadi Natash, Eastern Desert, Egypt 埃及东部沙漠Wadi Natash浅层断裂构造控制下的数值场址谱放大
Pub Date : 2022-05-01 DOI: 10.21608/aunj.2022.234651
M. Thabet
Site spectral amplification patterns at Wadi Natash area are exhibited in three frequency band widths of 15 ~ 10 Hz, 10 ~ 7 Hz, and 7 ~ 5 Hz. These amplification patterns result from numerical two-dimensional equivalent linear simulations of propagating S -waves at 50 m depth. The S -wave's propagation direction is found to be parallel to the dipping direction of the fault plane. Additionally, the resulted amplification patterns above both normal and reverse faults tend to be highly dependent on the frequency band width and fault geometrical parameters. The maximum amplification factors indicate producing very high guided S -wave's energy in the overlying fault zone layers. The present results suggest that S -wave's guiding efficiency is strongly dependent on the fault type and its relevant parameters, such as fault zone width and fault continuity in layers, and on the frequency band width.
Wadi Natash地区在15 ~ 10hz、10 ~ 7hz和7 ~ 5hz三个频带宽度上呈现出场址频谱放大模式。这些放大模式是在50米深度处传播的S波的二维等效线性数值模拟结果。发现横波的传播方向与断裂面倾斜方向平行。此外,在正断层和逆断层上得到的放大模式往往高度依赖于频带宽度和断层几何参数。最大放大因子表明在上覆断裂带层产生非常高的导S波能量。研究结果表明,S波的引导效率与断层类型及其相关参数(断层带宽度、断层层间连续性等)和频带宽度密切相关。
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引用次数: 0
Endophytic Fungi Associated with Dusty Miller (Centaurea cineraria L.) and Judean Wormwood (Artemisia judaica L.) and Evaluation of their Antifungal Activities 半毛茛(Centaurea cineraria L.)和犹太艾草(Artemisia judaica L.)内生真菌及其抑菌活性评价
Pub Date : 2022-05-01 DOI: 10.21608/aunj.2022.125140.1003
Moshera Elusfee
Endophytic fungi isolated from medicinal plants represent a potent biotechnological source for production of bioactive natural substances. This study aimed to estimate the diversity and anti-dermatophytic activity of the endophytic fungi associated with Centaurea cineraria and Artemisia judaica cultivated in Botanical Garden of Faculty of Science, Assiut University. Nineteen species belonging to eleven fungal genera
从药用植物中分离出来的内生真菌是生产生物活性天然物质的有效生物技术来源。摘要本研究旨在研究阿苏特大学理学院植物园栽培的半毛菊(Centaurea cineraria)和犹太蒿(Artemisia judaica)内生真菌的多样性及其抗皮肤真菌活性。隶属于11个真菌属的19种
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引用次数: 0
Brain Storm Optimization for Multiple Sequence Alignment problem 多序列比对问题的头脑风暴优化
Pub Date : 2022-05-01 DOI: 10.21608/aunj.2022.234649
Alaa Fahim, NE Abdelraheem
Brain Storm Optimization (BSO) is one of the most effective swarm intelligence methods for finding optimality in optimization problems by simulating the human brainstorming process. The BSO approach has been effectively used to a wide range of employed in several real-world issues. This study focuses on the use of a hybrid approach in conjunction with the idea of self-organization for multiple sequence alignment (MSA) problems. The term “self-organization” refers to a structure that operates without the need for external intervention. To demonstrate the efficacy of the algorithm, we applied BSO to MSA and evaluated the
头脑风暴优化(BSO)是一种最有效的群体智能方法,通过模拟人类头脑风暴过程来寻找优化问题的最优性。BSO方法已被广泛有效地应用于多个现实问题。本研究的重点是结合多序列比对(MSA)问题的自组织思想使用混合方法。术语“自组织”指的是不需要外部干预即可运行的结构。为了证明该算法的有效性,我们将BSO应用于MSA并对其进行了评估
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引用次数: 0
LIPOPEROXIDATION, PHENOLIC COMPOUNDS, ENDOPHENOL OXIDASE ENZYME AND PROTEIN METABOLISM IN KIRCHNERELLA LUNARIS CULTURES GROWN UNDER SALINITY 盐度条件下月牙樱桃菌脂质过氧化、酚类化合物、内酚氧化酶和蛋白质代谢的研究
Pub Date : 2022-02-28 DOI: 10.21608/aunj.2022.222249
Z. Ahmed, H. Galal, H. Badr
This work was conducted to study the effect of salinity treatments on growth and metabolism of the green micro-alga Kirchneriella lunaris (Selenastraceae, Chlorophyta) isolated from sewage water treatment plant at El-Kola , Sohag district, Egypt. The levels of salinity used were 00, 50, 100, 150, 200, 250 and 300 mM. NaCl. The test organism was left to grow for 10 days under the various salinity levels. Dry mass and photosynthetic pigments were increased at the level of 50 mM NaCl,. These values were decreased at the higher concentrations of NaC l in the culture media. Phenolic compounds content was reduced at 50 mM NaCl, and then increased significantly with increasing the dose of sodium chloride. Malondialdehyde (MDA) contents were elevated at all salinity concentrations. Salinity increased the intensity and the number of isoenzyme forms of indophenol oxidase (IPOX) which represents an increase in enzyme expression and activity. All concentrations of salt used stimulated the production of proteins (soluble and insoluble and total. Salinity induced the synthesis of newly protein bands. The higher doses of sodium chloride produced a large number of polypeptides bands. The concentrations of sodium chloride from 200 to 300 mM were accompanied by the synthesis of polypeptide bands with high molecular weight.
本研究研究了盐度处理对埃及Sohag地区El-Kola污水处理厂分离的绿微藻Kirchneriella lunaris(硒酸星科,绿藻门)生长和代谢的影响。盐浓度分别为00、50、100、150、200、250和300 mM. NaCl。试验生物在不同盐度水平下生长10天。在50 mM NaCl处理下,干质量和光合色素均显著增加。培养基中NaC浓度越高,这些值越低。在50 mM NaCl处理下,酚类化合物含量降低,随着氯化钠剂量的增加,酚类化合物含量显著增加。在不同盐度浓度下,丙二醛(MDA)含量均升高。盐度增加了吲哚酚氧化酶(IPOX)的强度和同工酶形式的数量,表明酶的表达和活性增加。所有浓度的盐都刺激了蛋白质(可溶性、不可溶性和总蛋白质)的产生。盐度诱导新蛋白条带的合成。高剂量的氯化钠产生大量的多肽带。当氯化钠浓度为200 ~ 300 mM时,可以合成高分子量的多肽带。
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引用次数: 0
FACIES ANALYSIS AND PALEOENVIRONMENTAL RECONSTRUCTION OF THE THEBES FORMATION (LOWER EOCENE) SEQUENCE ALONG THE RED SEA COAST BETWEEN QUSIER AND HURGHADA, EGYPT. 埃及古锡尔—赫尔格达红海沿岸底比斯组(下始新世)层序相分析与古环境重建
Pub Date : 2021-06-01 DOI: 10.21608/aunj.2021.219957
A. M. Ayyat, Nageh A. Obaidalla, A. Salman, M. S. Sayed
The Eocene Thebes Formation had been subjected to detailed field and petrographic analysis to evaluate the stratigraphy, depositional facies, paleoenvironment and sedimentological history of the Thebes Formation carbonates. Four surface stratigraphic sections located in the Eastern Desert have been studied in detail. These sections are distributed from south to north: Gebel Hamadat, Wadi Syatin, Gebel Wasif, and Wadi Malha sections. The carbonate succession of Thebes Formation rests conformably on the siliciclastic shales of the Esna Formation at all sections except at Wadi Malha, where there is an unconformity separates between Esna and Thebes formations.
对始新世底比斯组进行了详细的野外和岩石学分析,评价了底比斯组碳酸盐岩的地层、沉积相、古环境和沉积史。对位于东部沙漠的4个表层地层剖面进行了详细的研究。这些区段由南至北分布:Gebel Hamadat、Wadi Syatin、Gebel Wasif和Wadi Malha区段。底比斯组的碳酸盐序列在除Wadi Malha以外的所有剖面上都与Esna组的硅质页岩相整合,在那里Esna组和底比斯组之间存在不整合。
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引用次数: 0
ON THE CALCULATION OF ELECTRICAL BREAKDOWN VOLTAGE IN SHORT GAS-GAPS AT VARYING PRESSURES 变压力下短气隙击穿电压的计算
Pub Date : 2021-06-01 DOI: 10.21608/aunj.2021.219955
H. H. El-Hawary, M. Abdel-Salam, A. Hashem, A. Turky
This paper is concerned with the calculation of electrical breakdown voltage in uniform-field short gas-gaps at varying pressures. The oxygen is chosen being the main gas component in the atmospheric air, which poses the electronegativity character to the air. The calculation is based on the criterion of self-recurrence of single electron avalanche growing in the gap. This ensures sustenance of gas discharge for gap breakdown to occur. The calculated breakdown voltage and current-growth values agreed reasonably with those measured experimentally in oxygen at varying pressure values.
本文研究了变压力下均匀场短气隙击穿电压的计算。选择氧作为大气中的主要气体成分,使空气具有电负性。计算是基于在间隙中生长的单电子雪崩的自递归准则。这保证了间隙击穿发生时气体排放的持续性。计算得到的击穿电压和电流增长值与不同压力值下氧气中的实验测量值基本一致。
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引用次数: 0
BIOCHEMICAL BIOMARKERS FOR DOSE-DEPENDENT DAMAGE CAUSED BY 4-NONYLPHENOL IN THE JUVENILE CLARIAS GARIEPINUS 4-壬基酚对加里平幼鱼剂量依赖性损伤的生物化学标志物研究
Pub Date : 2021-06-01 DOI: 10.21608/aunj.2021.219959
Z. Eid, I. Mekkawy, U. Mahmoud
The present study investigates the dose-dependent damage caused by 4-nonylphenol exposure in juvenile of Clarias gariepinus using some biomarkers and the effect of recovery time. Healthy juvenile C. gariepinus of both sexes were classified into four groups (7fish/ group; two replicates). The first one was a control group, and the other three groups were exposed for 15 days to 4-nonylphenol concentrations as 0.1 mg/L, 0.2 mg/L, and 0.3 mg/L respectively, then 15 days as a recovery period after exposure time. The parameters exhibiting significance either increased with the increase of the 4-NP doses from 0.0 in the control to 0.3 mg/L (AST, ALT, TP, Glu, Cr, and UA) or decreased with such increased doses (Alb, and Glo). In conclusion, the liver and kidney functions parameters were indicated the hepatotoxicity and nephrotoxicity of 4-NP and their alterations have decreased to a great extent after a recovery period of 15-days in a reverse order.
利用生物标志物和恢复时间研究了4-壬基酚暴露对加里平Clarias gariepinus幼鱼的剂量依赖性损伤。健康幼鱼雌雄同体分为4组(7尾/组;两个复制)。第1组为对照组,其余3组分别以0.1 mg/L、0.2 mg/L和0.3 mg/L的4-壬基酚浓度暴露15 d,暴露后15 d作为恢复期。随着4-NP剂量的增加(AST、ALT、TP、Glu、Cr和UA),有显著性意义的参数(Alb和Glo)或随着剂量的增加而降低,从对照组的0.0 mg/L增加到0.3 mg/L。综上所述,肝肾功能参数反映了4-NP的肝毒性和肾毒性,在15天的恢复期后,其改变程度呈相反的下降趋势。
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引用次数: 0
SEASONAL VARIATIONS OF THE DIGESTIVE TRACT OF EGYPTIAN ROCK DOVE, COLUMBA LIVIA: ANATOMICAL, HISTOLOGICAL AND SCANNING ELECTRON MICROSCOPICAL STUDIES 埃及岩鸽(columba livia)消化道的季节变化:解剖、组织学和扫描电镜研究
Pub Date : 2021-06-01 DOI: 10.21608/aunj.2021.219961
Nahed, A. Shawki, F. Mahmoud, Mayada Y. Mohamed
This work aims to study the effect of seasonal variations on anatomical, histological, and histochemical structures of the digestive tract of Egyptian rock dove (Columba livia). The digestive tract of rock dove consists of oesophagus, crop, stomach, small and large intestine. The regions of the digestive tract of rock dove differ from each other in the type of lining epithelium, the shape of folds formed by these epithelium, the distribution of glands within their layers, finally the thickness of these layers. The oesophagealmucosa is composed of keratinized squamous epithelium which appears thicker in the crop. This epithelium becomes more compressed and converts into simple columnar and cuboidal epithelium to line the glandular and muscular stomach respectively. This simple columnar epithelium also is lining the small and large intestine, caeca and cloaca. Most glands and the goblet cells that are distributed among the mucosa of different regions of the digestive tract indicate the presence of acid and neutral mucopolysaccharide secretions while proteins are observed in the different regions of the digestive tract. The hisomorphometrical studies of the digestive tract of the rock dove during the summer and winter seasons show no significant changes on the morphological and histochemical levels of the digestive tract except the oesophagus region. The present results confirmed that the Egyptian rock dove as a resident bird doesn't often have to face environmental changes.
本文旨在研究季节变化对埃及岩鸽(Columba livia)消化道解剖、组织学和组织化学结构的影响。岩鸽的消化道由食道、嗉囊、胃、小肠和大肠组成。岩鸽消化道各区域的差异主要表现在上皮内膜的类型、上皮所形成的褶皱的形状、各层内腺体的分布以及各层的厚度。食道黏膜由角化的鳞状上皮组成,在嗉囊中显得较厚。上皮变得更加压缩,转化为简单的柱状上皮和立方上皮,分别排列在腺胃和肌胃上。单层柱状上皮也位于小肠、大肠、盲肠和泄殖腔内。大多数腺体和杯状细胞分布在消化道不同区域的粘膜中,表明存在酸性和中性的粘多糖分泌物,而在消化道不同区域均观察到蛋白质。冬夏两季对岩鸽消化道组织形态的研究表明,除食道区域外,其他消化道组织化学水平均无显著变化。目前的研究结果证实,埃及岩鸽作为一种留鸟不需要经常面对环境的变化。
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引用次数: 0
Temporal Variation of Cadmium and Lead in Nile Water, Assiut City, Egypt 埃及阿西尤特市尼罗河水中镉和铅的时间变化
Pub Date : 2021-06-01 DOI: 10.21608/aunj.2021.219956
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引用次数: 0
期刊
Assiut University Journal of Multidisciplinary Scientific Research
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