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Halophytes Dispersion Patterns and Soil Salinity Concentration Across the Egyptian North-Western Mediterranean Coast 埃及西北地中海沿岸的盐生植物扩散模式和土壤盐度浓度
Pub Date : 2023-09-01 DOI: 10.21608/ijesr.2023.329365
Nourhan Galal, Laila Bidak, Sania Kamal, S. Toto
Global climate change is considered the largest threat to the natural environment. To understand Earth's fundamental climate changes. We must look back for millions of years, without humans, climate altered between glacial and interglacial periods, and thus sea levels rise. Some places are already more vulnerable to climate change impacts, such as the coastal areas, as the rising sea level will increase the risk of flooding and erosion around the coasts affecting the distribution of species, and the dynamics of communities. Quick disperser species such as halophytes appear to be capable of long-distance jumps in the wake of climate change. Accordingly, halophytic plant dispersal to keep up with climate change captured our attention. A vegetation survey was done to assess the ecological situation and the movement of extreme halophytic plant species between spatial locations along the study area. Fifty-four sites were selected to represent the variations in vegetation structure along the salinity gradient. As, the measurement of plant dispersal is vital for understanding plant distribution between different spatial locations, providing an effective model of plant dispersal, and predicting future plant distribution and assemblages.
全球气候变化被认为是对自然环境的最大威胁。要了解地球的基本气候变化。我们必须回顾数百万年前,在没有人类的情况下,气候在冰川期和间冰期之间发生了变化,从而导致海平面上升。有些地方已经更容易受到气候变化的影响,如沿海地区,因为海平面上升将增加沿海地区洪水和侵蚀的风险,影响物种的分布和群落的动态。盐生植物等快速扩散物种似乎能够在气候变化后进行远距离跳跃。因此,卤叶植物随气候变化而扩散的问题引起了我们的关注。我们进行了植被调查,以评估生态状况和极端卤叶植物物种在研究区内不同空间位置之间的移动情况。我们选择了 54 个地点,以代表盐度梯度上植被结构的变化。植物扩散的测量对于了解植物在不同空间位置之间的分布、提供有效的植物扩散模型以及预测未来植物分布和组合至关重要。
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引用次数: 0
Groundwater Quality Evaluation for the Limestone Aquifer Utilizing Hydrochemical Characteristics and Imitative Techniques, Eastern Nile Valley, Egypt 利用水化学特征和模拟技术评估埃及尼罗河谷东部石灰岩含水层的地下水质量
Pub Date : 2023-09-01 DOI: 10.21608/ijesr.2023.329363
Ahmed Saad, Mohamed Fattah, Mohamed Gad
The construction of new towns and land reclamation initiatives are now being given a lot of attention by the Egyptian government in an effort to solve the country's overpopulation issue. Groundwater quality in the Limestone aquifer was evaluated using integrated physico-chemical criteria under sustainable development guidelines. Forty groundwater samples were taken from the research area's fractured limestone aquifer during the summer of 2021. The results showed that according to their physico-chemical characteristics, the primary ion contents were derived in the order of Na + > Ca 2+ > Mg 2+ > K + and SO 42-> HCO 3-> CO 32-. Chemical analysis findings showed that the bulk of the groundwater points from the Eocene had calcium levels that varied from 3.9 ppm to 19.5 ppm. The methods by which highly soluble carbonate minerals like calcite, dolomite, and sulphate are leached may be responsible for the high concentration of calcium ions in the groundwater of the studied region. The quantity of magnesium ions in groundwater wells ranged from 6 ppm to 24.32 ppm. Sodium is the predominant cation, with concentrations between 440 and 1020 ppm. Chloride concentrations varied between 335 to 674 ppm. Sulphate concentrations varied between 323 to 1478 ppm. The bulk of groundwater samples from the Eocene had bicarbonate concentrations from 62 to 124 ppm. Landowners in newly reclaimed lands should be urged to employ contemporary irrigation techniques including sprinkler and drip irrigation technologies for the integrated management and efficient use of water resources.
埃及政府目前非常重视新城镇建设和土地开垦行动,以努力解决该国人口过多的问题。根据可持续发展准则,采用综合物理化学标准对石灰岩含水层的地下水质量进行了评估。2021 年夏季,从研究区域的断裂石灰岩含水层中采集了 40 个地下水样本。结果显示,根据其物理化学特征,主要离子含量依次为 Na + > Ca 2+ > Mg 2+ > K + 和 SO 42-> HCO 3-> CO 32-。化学分析结果表明,始新世的大部分地下水点的钙含量从 3.9 ppm 到 19.5 ppm 不等。高溶解性碳酸盐矿物(如方解石、白云石和硫酸盐)的浸出方法可能是造成研究区域地下水中钙离子浓度较高的原因。地下水井中的镁离子含量介于 6 ppm 到 24.32 ppm 之间。钠是最主要的阳离子,浓度在百万分之 440 到 1020 之间。氯离子浓度介于百万分之 335 至 674 之间。硫酸盐浓度介于百万分之 323 到 1478 之间。始新世的大部分地下水样本的碳酸氢盐浓度在 62 到 124 ppm 之间。应敦促新开垦土地的土地所有者采用现代灌溉技术,包括喷灌和滴灌技术,对水资源进行综合管理和有效利用。
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引用次数: 0
Assessment of Drains Water Quality for Irrigation Purposes Using Pollution Indices in Egypt 用污染指数评价埃及灌溉用排水沟水质
Pub Date : 2023-06-01 DOI: 10.21608/ijesr.2023.309146
Reda Abd El Hamed, Ezat Ahmed, Ibrahim El-Sayed, Salah El Sayed, M. Gad
The drainage systems are a major source of water that can be used again in agriculture. The current objective of this study is to evaluate the suitability for irrigation of 50 drain water samples collected during summer 2021 surrounding Rosette Branch. According to statistical analyses of the physicochemical parameters measured, the average temperature of the drain water was around 28.192 °C, with a range of 23.3 to 32.4 °C. The mean pH value was 7.64, which ranged from 6.51 to 8.71. The conductivity (EC) showed a mean value of 848.52 µS/cm, which ranged between 330 to 1591 µS/cm. The total dissolved solids (TDS) showed a mean value of 547.5 mg/L, which was acceptable for irrigation use. The range of TDS values was varied from 211.2 to 1034 mg/L. The average concentration of trace element values for the collected drainage samples were in the following sequences: Zn > Fe > Al > Mn > Cr > Pb > Ni > CO > Li > Cd, respectively. The pollution indices, including the heavy metal pollution index (HPI), metal index (MI), contamination index (C d ), and pollution index (PI), were estimated. For instance, The MI values revealed that 36% of samples were slight affected, 10% of samples were moderately affected, 42% of samples were strongly affected, and 12% of samples were seriously affected on water quality for irrigation. In the long-term irrigation water use, the MI had a median value of 4.10, which ranged from 1.01 to 23.35.
排水系统是可以再次用于农业的主要水源。本研究目前的目的是评估2021年夏季在Rosette Branch周围收集的50个排水样本的灌溉适用性。根据所测物化参数统计分析,污水平均温度在28.192℃左右,范围在23.3 ~ 32.4℃之间。平均pH值为7.64,范围为6.51 ~ 8.71。电导率(EC)平均值为848.52µS/cm,范围在330 ~ 1591µS/cm之间。总溶解固形物(TDS)平均值为547.5 mg/L,可用于灌溉。TDS值为211.2 ~ 1034 mg/L。收集的排水样品中微量元素的平均浓度顺序为:Zn > Fe > Al > Mn > Cr > Pb > Ni > CO > Li > Cd。估算了污染指数,包括重金属污染指数(HPI)、金属污染指数(MI)、污染指数(C d)和污染指数(PI)。例如,MI值显示36%的样本对灌溉水质有轻微影响,10%的样本有中度影响,42%的样本有强烈影响,12%的样本有严重影响。在长期灌溉用水中,MI的中位数为4.10,范围为1.01 ~ 23.35。
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引用次数: 0
Application of Water Quality Indices Measurements to Study the Suitability of Drain Water Quality for Irrigation in Egypt 应用水质指标测量法研究埃及灌溉排水水质适宜性
Pub Date : 2023-06-01 DOI: 10.21608/ijesr.2023.309144
Reda Abd El Hamed, Ezat Ahmed, Ibrahim El-Sayed, Salah El Sayed, M. Gad
Irrigation water quality indices (IWQIs), geochemical facies, and controlling mechanisms were used in an integrated manner to measure the optimum use of drain water for irrigation under sustainable development conditions. During the summer of 2021, 50 samples of drain water were collected around Rosette Branch. The principal ion concentrations have been obtained in the following order, according to their physicochemical properties: HCO 3-> Cl - > SO 42-> CO 32-and Na + > Ca 2+ > Mg 2+ > K + . Due to evaporation and rock-water interaction, the surface water facies reflect calcium and magnesium bicarbonate type and the calcium and magnesium sulfate type. According to IWQI results, about 4% of samples had high restrictions for irrigation use, 30% had moderate restrictions, and 18% of the samples were subject to restrictions for irrigation use. In accordance with the sodium percentage (Na %) readings, 50% of the drains were acceptable for irrigation, while the other were permissible use for irrigation. All drain water samples scored acceptable for irrigation, according to sodium absorption ratio (SAR) and residual sodium carbonate (RSC).
综合利用灌溉水质指数、地球化学相和控制机制,对可持续发展条件下灌溉排水的最佳利用进行了测度。在2021年夏季,在Rosette Branch周围收集了50个排水样本。根据它们的理化性质,得到了主要离子浓度的顺序:hco3 -> Cl -> so42 -> CO 32和Na + > ca2 + > Mg 2+ > K +。由于蒸发作用和岩水相互作用,地表水相主要为碳酸氢钙镁型和硫酸钙镁型。根据IWQI结果,约4%的样品具有高限制灌溉用水,30%的样品具有中等限制灌溉用水,18%的样品具有限制灌溉用水。根据钠百分比(Na %)读数,50%的排水管可用于灌溉,而其他的则允许用于灌溉。根据钠吸收比(SAR)和残余碳酸钠(RSC),所有排水样品均可用于灌溉。
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引用次数: 0
Evaluation of Groundwater Quality Utilizing Integrated Physicochemical Parameters and Indexing Approaches 基于综合物化参数和指标法的地下水水质评价
Pub Date : 2023-06-01 DOI: 10.21608/ijesr.2023.309147
Ali Alsahli
Water is a vital natural component to human existence and also is necessary for many various fields. The research location is in a region prone to water scarcity due to lack of rainfall and poor distribution. The water condition for irrigation practices is a complicated problem that depends on the interactions of numerous aspects of groundwater management considerations under the principles of sustainability. To achieve the evaluation of groundwater quality for agriculture, this study utilized irrigation water quality indices (IWQIs), which include sodium percent (Na %), sodium absorption ratio (SAR), permeability index (PI), and magnesium hazards (MH). For that, 37 groundwater samples were obtained, and conventional analytical approaches were utilized to quantify the physical and chemical features. The physical and chemical features showed that the main ions contents were recorded as sequences: (Na + > Ca 2+ > Mg 2+ ) and (SO 42− > HCO 3− > Cl − ). The geochemical characteristics for the obtained groundwater samples showed Na-K-Cl-SO 4 and Ca-Mg-Cl-SO 4 water facies under effect of precipitation and rock-water interaction factors. The mean values of the IWQIs for Na%, SAR, PI, and MH showed, correspondingly, 63.17, 6.51, 71.94, and 47.82, respectively. Therefore, using physical and chemical properties and multi-indexing approaches to evaluate groundwater quality and its regulating processes is efficient and feasible.
水是人类生存的重要自然成分,也是许多领域所必需的。研究地点位于一个由于降雨不足和分布不佳而容易缺水的地区。灌溉用水条件是一个复杂的问题,它取决于可持续性原则下地下水管理考虑的许多方面的相互作用。为实现对农业用地下水水质的评价,本研究采用灌溉水质指标(IWQIs),包括钠含量(Na %)、钠吸收比(SAR)、渗透指数(PI)和镁危害(MH)。为此,采集了37份地下水样品,并利用常规分析方法对其理化特征进行了定量分析。理化特征表明,其主要离子含量为(Na + > ca2 + > Mg 2+)和(so42−> HCO 3−> Cl−)。地下水地球化学特征受降水和岩水相互作用因素的影响,表现为na - k- cl - so4和ca - mg - cl - so4水相。Na%、SAR、PI和MH的iwqi平均值分别为63.17、6.51、71.94和47.82。因此,利用理化性质和多指标方法评价地下水水质及其调控过程是有效可行的。
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引用次数: 0
Benchmarking Evaluation of Environmental Impact Assessment Studies Case Study: New Burg El Arab City– Alexandria – Egypt 环境影响评价的基准评价研究——案例研究:埃及亚历山大港阿拉伯新城
Pub Date : 2023-06-01 DOI: 10.21608/ijesr.2023.309148
E. Badr, A. Laban, A. Zahran
Environmental impact assessment (EIA) is one of the great significance tools to achieve environmental sustainability. The objective of this research was to investigate the effectiveness of EIA practice in Egypt, through evaluation of the produced environmental impact statement (EIS) reports in New Burg El Arab City (Case study) using the Lee & Colley EIS review package. The study focuses on a comparison between different EIA studies conducted by the Egyptian Environmental Affair Agency (EEAA) and the Industrial Development Authority (IDA), emphasis areas for improving the EIA report quality, and make suggestions for future improvements. The Lee and Colley's EIS review package were modified to evaluate both EIA complete studies (B Scope, C and high-risk industrial projects) and EIA forms (A, B and low-risk industrial projects) in Alexandria, Egypt.The first modification of the EIS review package was used to evaluate the quality of (75) EISs complete study produced during the years 2016 and 2022.The results of This EISs evaluation revealed that approximately 75% of the total samples were satisfactory in quality. (36 EISs) 48% were good, (33 EISs) 44% borderline, (6 EISs) 8% poor. The second modification of the EIS review package was used to evaluate (80) environmental classification forms (A and B) during 2016 (EEAA) and to evaluate (100) low risk industrial projects during the period 2017-2022. The environmental classification forms (A and B) were evaluated that were submitted to the concerned Alexandria branch of the EEAA, and it was found that about 91% of the EIS samples were of acceptable quality. Of these (44 EISs), 55% were good, (36 EISs), 45% were border line. Moreover, the evaluation of low-risk industrial projects indicated that about 56% of the EISs samples were of acceptable quality. Of those (31EISs) 31% were good, (33EISs) 33% were borderline and (36EISs) 36% were poor. The research presents suggestions and recommendations for enhancement of EIA process in Egypt. The use of EIA guidelines, EIS reviewing criteria, environmental monitoring program, EIA consultant’s accreditation, consideration of alternatives and public consultation, all ensue an effective EIA system in Egypt along with protecting our environment /natural resources for us and further generation.
环境影响评价是实现环境可持续性的重要工具之一。本研究的目的是调查埃及环境影响评估实践的有效性,通过使用Lee & Colley环境影响评估包评估新堡El Arab市的环境影响评估报告(案例研究)。本研究重点比较了埃及环境事务管理局(EEAA)和工业发展局(IDA)开展的不同环境影响评估研究,强调了提高环境影响评估报告质量的领域,并提出了今后改进的建议。对Lee和Colley的环境影响评估包进行了修改,以评估埃及亚历山大的环境影响评估完整研究(B范围、C和高风险工业项目)和环境影响评估表格(A、B和低风险工业项目)。EIS审查包的第一次修改用于评估2016年至2022年期间(75)项EIS完整研究的质量。该eis评估的结果显示,大约75%的总样品质量满意。36例良好,33例一般,6例不良,占8%。EIS审查包的第二次修改用于评估2016年(EEAA)期间的80个环境分类表(A和B),并评估2017-2022年期间的100个低风险工业项目。对环境分类表(A和B)进行了评估,并将其提交给有关的EEAA亚历山大分支机构,发现约91%的环境影响报告书样本质量合格。44份eis中,55%为良好,36份eis中,45%为边界线。此外,对低风险工业项目的评估表明,约56%的eis样本质量可接受。其中(31名ei) 31%为良好,(33名ei) 33%为边缘,(36名ei) 36%为差。本研究提出了加强埃及环境影响评估程序的建议和建议。环境影响评估指南的使用、环境影响评估标准、环境监测计划、环境影响评估顾问的认证、替代方案的考虑和公众咨询,所有这些都是埃及有效的环境影响评估系统的基础,同时也为我们和子孙后代保护我们的环境/自然资源。
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引用次数: 0
Anaerobic Co Digestion of Kitchen Waste With Cattle Dung and Poultry Manure A Means to Overcome The Problems of Anaerobic Mono Digestion and Improve The Production of Biogas 牛粪、禽粪厌氧消化餐厨垃圾是克服单厌氧消化问题,提高沼气产量的一种手段
Pub Date : 2023-06-01 DOI: 10.21608/ijesr.2023.309140
Mahmoud Saber, R. El-Khayat, Yahy Zean Zean, Salah Elsayed Elsayed, M. El-Howeity
Anaerobic mono digestion usually suffers from several problems at high rates of organic load, which leads to a negative effect on the activity of methane producing bacteria, which leads to a decrease in biogas production. Therefore, it is important to find scientific alternatives to overcome these problems. In this study, the low efficiency of anaerobic mono digestion of kitchen waste was efficiently overcome by anaerobic co digestion of kitchen waste with cattle dung and poultry manure. The results indicated that anaerobic co digestion for kitchen waste with cattle dung (T4) has significantly increased the production of biogas more than anaerobic mono digestion for kitchen waste (T3). The obtained results showed that the produced biogas ranged from 17.68 to 30.95 L, and the highest production was observed from T1 (cattle manure and starter), followed by T4 (kitchen waste, cattle dung and starter) and the lowest production resulting from T2 (poultry manure and starter). The results also indicated that methane production ranged from 10.08 to 19.87 liters, and that T1 (cattle manure and starter) was more productive than T4 (kitchen waste, cattle dung and starter), and T4 outperformed other treatments in methane pro ِduction. Biogas and methane production rates were based on either total solid or volatile solid where, ranged between 136.53-189.96 L/Kg consumed biogas and 77.84-121.95 L/Kg consumed methane. Volatile fatty acids concentration was decreased after anaerobic fermentation process. Also, the pH values increased at the end of anaerobic digestion the values ranged between 7.65-8.02. After anaerobic digestion, the total and faecal coliform count as well as Salmonella & Shigella were not discovered. The numbers of total bacterial count, aerobic cellulose decomposers and acid producers (aerobic and anaerobic) were decreased after anaerobic digestion. In contrast, the numbers of anaerobic cellulose decomposers were increased after anaerobic digestion.
在高有机负荷下,厌氧单消化通常会遇到几个问题,这会对产甲烷细菌的活性产生负面影响,从而导致沼气产量减少。因此,找到科学的替代方案来克服这些问题是很重要的。本研究通过将餐厨垃圾与牛粪、禽粪进行厌氧共消化,有效地克服了餐厨垃圾单厌氧消化效率低的问题。结果表明,餐厨垃圾与牛粪厌氧共消化(T4)比单厌氧消化(T3)更能显著提高餐厨垃圾的沼气产量。结果表明:产气量在17.68 ~ 30.95 L之间,T1(牛粪和发酵剂)产气量最高,T4(厨余、牛粪和发酵剂)产气量次之,T2(禽粪和发酵剂)产气量最低。甲烷产量在10.08 ~ 19.87 l之间,T1处理(牛粪和发酵剂)的甲烷产量高于T4处理(厨余、牛粪和发酵剂),T4处理的甲烷产量优于其他处理ِduction。沼气和甲烷产率基于总固体或挥发性固体,其中沼气消耗136.53-189.96 L/Kg,甲烷消耗77.84-121.95 L/Kg。厌氧发酵后挥发性脂肪酸浓度降低。厌氧消化结束时pH值升高,在7.65 ~ 8.02之间。经厌氧消化后,未检出总大肠菌群和粪便大肠菌群计数,也未检出沙门氏菌和志贺氏菌。厌氧消化后细菌总数、好氧纤维素分解菌和产酸菌(好氧和厌氧)数量均下降。相反,厌氧消化后,厌氧纤维素分解者数量增加。
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引用次数: 0
The Potential Reuse of Sewage Sludge for Agriculture Purposes (Case Study: North Gaza Emergency Sewage Treatment Plant (NGEST)) 污水污泥可能用于农业用途的再利用(案例研究:北加沙紧急污水处理厂)
Pub Date : 2023-03-01 DOI: 10.21608/ijesr.2022.297094
Mahmoud Nasman, Hussam Al-Najjar
This paper identified the potential use of sewage sludge protected from the emergency sewage treatment plant in north Gaza (NGEST) for agricultural purposes and studied its effect on plant growth and soil properties. The sludge was dried in sunlight, and the plant tissues were cleaned and ground to an appropriate size. The results of the analysis showed that sludge can be used as soil fertilizer and can add nutrients for plant growth. The parameters were tested as pH, EC, TDS, FC, O.M, N, P, CI, ammonia N, E. coli, faecal streptococcus, salmonella, faecal coliforms, total coliforms, SAR, magnesium, sodium chloride, and potassium. A practical experiment was conducted using agricultural containers to grow corn. Five treatments (0-10-20-25-30% sludge) were used. Each experiment has three replicates. Sludge-amended soil affects corn growth. The best treatment was when sludge was amended with the soil at a rate of 25% of the dry weight of the soil.
本文确定了加沙北部紧急污水处理厂(NGEST)保护的污水污泥用于农业目的的潜在用途,并研究了其对植物生长和土壤性质的影响。污泥在阳光下晒干,植物组织被清洗并磨成合适的大小。分析结果表明,污泥可作为土壤肥料,为植物生长补充养分。测定了pH、EC、TDS、FC、O.M、N、P、CI、氨氮、大肠杆菌、粪链球菌、沙门氏菌、粪大肠菌群、总大肠菌群、SAR、镁、氯化钠、钾等参数。利用农业容器种植玉米进行了实际试验。采用5种处理(0-10-20-25-30%污泥)。每个实验有三个重复。污泥改良土壤影响玉米生长。污泥以土壤干重的25%的速率与土壤进行修正是最佳处理。
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引用次数: 0
Phytochemistry and Biological Attributes of Datura innoxia 曼陀罗植物化学及生物学特性研究
Pub Date : 2023-03-01 DOI: 10.21608/ijesr.2022.297093
Salama M. El-Darier, E. Hamed, R. El Dakak, S. Rashed
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引用次数: 0
Detecting coastal black sand areas using remote sensing and GIS in Egypt 利用遥感和地理信息系统探测埃及沿海黑沙地区
Pub Date : 2023-03-01 DOI: 10.21608/ijesr.2022.297092
M. Hattab, Sayed El-Rabeiy, Rasha Ghazy
{"title":"Detecting coastal black sand areas using remote sensing and GIS in Egypt","authors":"M. Hattab, Sayed El-Rabeiy, Rasha Ghazy","doi":"10.21608/ijesr.2022.297092","DOIUrl":"https://doi.org/10.21608/ijesr.2022.297092","url":null,"abstract":"","PeriodicalId":169728,"journal":{"name":"International Journal of Environmental Studies and Researches","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121605753","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
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International Journal of Environmental Studies and Researches
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