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A GIS approach to identify the Cork Oak Decline in M’Sila Forest (North-West of Algeria) GIS方法识别M 'Sila森林(阿尔及利亚西北部)栓皮栎衰退
Pub Date : 2019-01-01 DOI: 10.22453/lsj-020.2.206-214
Ghefar Mohammed, D. Belkheir
The decline of cork oak trees in North-West of Algeria was supposed to be caused by a combination of primary or predisposing factors, and secondary or opportunistic factors. There is a broad consensus about the role of water scarcity and nutrients in the primary causes, given the similarity of symptoms of cork oak decline and of chronic water deficits. To identify and characterize the cork oak decline in M’sila forest, a cork oak mortality index was determined for each transience area using a GIS approach and a linear regression model formulated by analyzing the interactions between the attributes of station (competition of superior and inferior floor); and allowing a justification of cork oaks mortality. The mortality index is significantly high in the invasive shrub plots and where the Aleppo pine density is very high; in which competition for soil water between the trees and the inferior floor increases. The lowest mortality value characterized by a lower density of Aleppo pine and herbaceous inferior floor.
阿尔及利亚西北部栓皮栎的衰退被认为是由主要或诱发因素和次要或机会因素共同造成的。鉴于栓皮栎衰退的症状与长期缺水的症状相似,人们对缺水和营养物质在主要原因中的作用有广泛的共识。为了识别和表征M 'sila森林栓皮栎的衰退,利用GIS方法和通过分析站点属性(优劣势层竞争)之间的相互作用建立的线性回归模型,确定了每个暂态区域的栓皮栎死亡率指数;并允许为软木橡树的死亡辩护。在入侵灌丛样地和阿勒颇松密度高的地方,死亡率指数显著高;在这种情况下,树木和下层地面对土壤水分的竞争加剧。死亡率最低,以阿勒颇松密度较低和草本劣质地板为特征。
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引用次数: 0
Effect of modified manufacturing procedure on the overall quality attributes and safety of Kishk 改进生产工艺对Kishk整体质量属性和安全性的影响
Pub Date : 2019-01-01 DOI: 10.22453/lsj-020.2.215-229
E. Hajj, H. Dib, R. Yaacoub, M. Al-Amin, Zeynab Mcheik
The traditional manufacturing method of Kishk involves a daily addition of plain yoghurt to Bourghul (5:1 ratio), followed by heavy handling during the 5-day period of uncontrolled fermentation. In order to improve quality, safety and yield losses, a modified procedure with a single addition of strained yoghurt (Labneh), in a 3:1 ratio, was investigated. The physico-chemical, microbiological and sensory characteristics of both Kishk products were assessed during five days of controlled fermentation (RT: 23- 25 °C; RH: >85%). Green and dried modified-Kishk were of similar quality characteristics when compared to traditional ones. Moisture content was lower in traditional (63 %) compared to modified (66 %), whereas titratable acidity was higher in modified Kishk (1.22 against 1.02 %). Peroxidation (PV = 0; TBARS = 0.2 mg MDA/Kg), and lipolysis (AV max 3.48 %) were always in the acceptable ranges. Pathogenic bacteria (E. coli, Salmonella spp., L. monocytogenes, S. aureus) were not detected neither in green nor in dried Kishk. Sensory analysis revealed a harder texture, higher viscosity and higher scores for appearance, odor and overall acceptability in green Modified-Kishk. After drying into fine powder, Modified-Kishk showed improved nutritional, organoleptic and physical quality attributes. The modified end-product can conveniently be safely produced on an industrial scale with optimum conditions.
Kishk的传统制作方法是每天向Bourghul中添加普通酸奶(5:1的比例),然后在5天的无控制发酵期间进行大量处理。为了提高质量,安全性和产量损失,研究了一种改进的程序,即以3:1的比例添加单一的过滤酸奶(Labneh)。在为期5天的控制发酵(RT: 23- 25°C;RH: > 85%)。与传统品种相比,绿色品种和干燥品种具有相似的品质特征。传统的水分含量(63%)比改良的(66%)低,而改良的Kishk的可滴定酸度更高(1.22%对1.02%)。过氧化反应(PV = 0;TBARS = 0.2 mg MDA/Kg),脂肪分解(AV max 3.48%)均在可接受范围内。在绿色和干燥的Kishk中均未检出致病菌(大肠杆菌、沙门氏菌、单核增生乳杆菌、金黄色葡萄球菌)。感官分析显示,绿色改性基什克的质地更硬,粘度更高,外观、气味和总体可接受性得分更高。干燥成细粉后,改良基什克的营养、感官和物理品质都有所改善。改性后的最终产品可以在最优条件下方便地进行工业规模安全生产。
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引用次数: 2
Study of polycyclic aromatic hydrocarbon contamination in sediments and northern waters Lebanon: Rivers, transition zones and port sites. 沉积物和北部水域多环芳烃污染研究黎巴嫩:河流、过渡区和港口地点。
Pub Date : 2018-12-27 DOI: 10.22453/lsj-019.3.343372
H. Amine, J. Halwani, E. Gomez, F. Merhabi
Contamination of the marine environment is associated with continental activities, marine activities and accidental spills. Providing answers to the origin of the contamination ofthe aquatic environment by PAHsis an objective of the present work. The originality of this work is to study pollutants in two types of matrix (water and sediments) during2 seasons (dry and wet) for an environmental monitoringof 6 years. This study provides a more complete overview of the state of contaminationin three coastal rivers, their transition zones and harborsin the Eastern Mediterranean following the Jiyyeh oil spill in 2006.Contaminantsconcentrations wereexpressed asthe sum of the 16 PAHs classified as prority substances by the United StatesEnvironmental Protection Agency(US-EPA). Overall,contamination was noted for all the analyzedsites. Oil spill seem to be one of the main sources of pollution in the area, as the highest levels of PAH(> 9000 ng.g-1s.w&> 8000 ng.L-1) were reported in the coastal environment of the three rivers and harbors.High levels of PAHswere also observed in rivers transitional zones, revealing the importance of terrestrial inputs (untreated wastewater discharge, leachate, solid wastes, etc.).Comparing the PAHsconcentrations measured in the sediments of the sitesanalyzed with the empirical sediment quality criteria "SQG" for the support of the general assessment of sediment toxicity, we can notice that some individual PAHand their sum can present a significant ecotoxicological risk to aquatic organisms. Further research through monitoring campaigns and toxicity tests is encouraged, as the exposure of the resident aquatic organisms and human population to these chemicals might be expected to increase over the years.
海洋环境的污染与大陆活动、海洋活动和意外泄漏有关。为多环芳烃污染水生环境的原因提供答案是本研究的目标。这项工作的独创性在于研究两种类型基质(水和沉积物)在两个季节(干季和湿季)的污染物,为期6年的环境监测。本研究对2006年吉叶石油泄漏后地中海东部三条沿海河流及其过渡区和港口的污染状况进行了更全面的概述。污染物浓度表示为美国环境保护署(US-EPA)列为优先物质的16种多环芳烃的总和。总的来说,所有被分析的地点都发现了污染。石油泄漏似乎是该地区的主要污染源之一,因为多环芳烃(PAH)的最高水平为9000 ng.g-1。在三江港沿岸环境中发现了w&> 8000 ng.L-1)。在河流过渡带也观察到高水平的多环芳烃,揭示了陆地输入(未经处理的废水排放、渗滤液、固体废物等)的重要性。将分析站点沉积物中pahs浓度与支持沉积物毒性总体评价的经验沉积物质量标准“SQG”进行比较,我们可以注意到某些pahs个体及其总和可能对水生生物产生显着的生态毒理学风险。鼓励通过监测运动和毒性试验进行进一步研究,因为预计多年来,常驻水生生物和人类接触这些化学品的情况可能会增加。
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引用次数: 1
ospital governance and new public management in a university hospital center in Algeria 阿尔及利亚一所大学医院中心的医院治理和新公共管理
Pub Date : 2018-12-27 DOI: 10.22453/lsj-019.3.465485
Sofiane Salaouatchi, Nesrine Boucha
En Algérie, la gouvernance hospitalière et l’évaluation des performances des hôpitaux s’inscrit dans un axe de priorité du gouvernement dans le cadre de la réforme du secteur de la santé. Son importance s’est encore plus marqué suite à la conjoncture économique que vit le pays depuis 2015, et ce en raison des grands moyens financiers alloué par l’état àce dernier secteur.Ce papier testequelques principes dela gouvernance et les perspectives d’application du nouveau management public décrit par les spécialistes sur un centre hospitalo-universitaire Algérien et en conclut de sérieusesinsuffisances en matière de pratiques managériales qui découlent des effets de la transition du modèle socialet économiquedu pays, entamée depuis le début des années quatre-vingt-dix.
在阿尔及利亚,医院治理和医院绩效评估是政府在卫生部门改革框架内的优先事项之一。自2015年以来,由于国家为后者分配了大量财政资源,该国的经济形势更加突出了它的重要性。这种纸testequelques治理的原则和应用前景的新公共管理学专家所描述的关于阿尔及利亚的一家医院,并总结的sérieusesinsuffisances管理做法方面产生影响,经济社会模式的转型国家,自90年代初开始的。
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引用次数: 0
Healthcare Marketing: An Empirical Study among Lebanese Hospitals 医疗保健营销:黎巴嫩医院的实证研究
Pub Date : 2018-12-27 DOI: 10.22453/lsj-019.3.453464
M. Aoun, Hassan Alaaraj
Although most of studies have identified different dynamic factors that influence hospitals business development, there is always an increasing interest to find the best practices that ensure effective and sustainable marketing strategies in healthcare. The purpose of this study was to make an approach between patients and hospital managers to develop an effective marketing strategy for hospitals in Lebanon. A quantitative methodology was applied to statistically test both patients and managers’ attitudesthrough conducting two different simple surveys among patients and managers from fourdifferent hospitals in Lebanon. Self-administered questionnaires were designed in terms of marketing mix and hospitalization experience, and distributed randomly among participants to assess the implemented marketing strategies.Majority of patients were satisfied from the healthcare service provided and 93.3% of patients showed high level of loyalty to these hospitals. In terms of experiencing the marketing mix, majorityof patients were able to identify the most significant 7ps in hospitals especially in terms of price and people. Similarly, the results obtained from managers’ surveyshowed consistency of the marketing strategies applied by these hospitals with the patients’ attitudesbut with some conservation regarding the pricing strategies in the Lebanese healthcare system.The importance of healthcare marketing falls mainly in the framework of strengthening public relations with patients and maintaining a proper pricing strategy that is backed by the government and mediated by the guarantors. Future studies can be extended empirically in terms of geographical distribution of hospitals and the methodology applied.
尽管大多数研究都确定了影响医院业务发展的不同动态因素,但人们对寻找确保医疗保健领域有效和可持续营销策略的最佳实践总是越来越感兴趣。本研究的目的是在患者和医院管理人员之间建立一种方法,为黎巴嫩的医院制定有效的营销策略。通过对黎巴嫩四家不同医院的患者和管理人员进行两次不同的简单调查,应用定量方法对患者和管理者的态度进行了统计测试。根据营销组合和住院经历设计了自我管理问卷,并在参与者中随机分配,以评估实施的营销策略。大多数患者对所提供的医疗服务感到满意,93.3%的患者对这些医院表现出高度的忠诚度。就体验营销组合而言,大多数患者能够识别出医院中最重要的7便士,尤其是在价格和人员方面。同样,从管理人员的调查中获得的结果显示,这些医院应用的营销策略与患者的态度一致,但在黎巴嫩医疗系统的定价策略方面存在一些保守性。医疗保健营销的重要性主要体现在加强与患者的公共关系和维持由政府支持和担保人调解的适当定价策略的框架内。未来的研究可以在医院的地理分布和所应用的方法方面进行实证扩展。
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引用次数: 2
Effects of monolayers made from different emulsions on surface water evaporation in a typical Algerian oasis 由不同乳剂制成的单层膜对典型阿尔及利亚绿洲地表水蒸发的影响
Pub Date : 2018-12-27 DOI: 10.22453/lsj-019.3.400409
S. Saggaï, D. Boutoutaou, Oum El kheir Bachi
The extremely high rate of evaporation from surface water bodies in arid and semi-arid regions greatly reduces optimal utilization of water reservoirs. Therefore, techniques to reduce evaporation are greatly needed. During the last decades, a large number of dams (68 dams)were constructed and distributed over the entire country. Hence, preserving and protecting the stored waterby reducing evaporation is strategic future task of the Algerian state. Experiment was conducted in Touggourt during summer with four Colorado evaporation pans and weather station. Two fatty alcohols emulsion were selected and applied to reduce the evaporation in different pans. The first pan (OP) was filled with water without adding emulsion,while in the second pan (P2, Hexa)Hexadecanol emulsion was added at the concentration of 0.15g/m2. For the third pan (P3, Hexa/Octa)amixture of Hexadecanol/Octadecanol emulsion was added at the same concentration (0.075g Hexa:0.075g Octa)and for the fourth pan (P4, Octa) Octadecanol emulsion was added with a concentration of 0.15g/m2. The different formulations and concentrations were repeated on the respective water surface every three daysin order to form a monolayer.
干旱半干旱区地表水体蒸发率极高,极大地降低了水库的最佳利用。因此,减少蒸发的技术是非常必要的。在过去的几十年里,建造了大量的水坝(68座水坝),分布在全国各地。因此,通过减少蒸发来保存和保护储存的水是阿尔及利亚政府未来的战略任务。夏季利用4个科罗拉多蒸发盘和气象站在杜格尔进行试验。选择两种脂肪醇乳液,分别在不同的锅中减少蒸发。在第一锅(OP)中加水,不加乳液;在第二锅(P2)中加入浓度为0.15g/m2的十六醇乳液。第三锅(P3, Hexa/Octa)以相同的浓度(0.075g Hexa:0.075g Octa)加入十六醇/十八醇乳液的混合物,第四锅(P4, Octa)以0.15g/m2的浓度加入十八醇乳液。不同的配方和浓度每三天在各自的水面上重复一次,以形成单层。
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引用次数: 0
Causality study between electricity consumption and economic growth in Lebanon 黎巴嫩电力消费与经济增长的因果关系研究
Pub Date : 2018-12-27 DOI: 10.22453/lsj-019.3.432452
Nour Wehbe, B. Assaf, S. Darwich
This article studies the causal relationship between electricity consumption and economic growth in Lebanon over the period 1971-2012. This relationship is examined using cointegration and Granger causality tests. The results of the estimates indicate that economic growth and electricity consumption in Lebanon are not cointegrated and that there is no causal relationship between variables according to Granger’s tests. However, a unidirectional causality is detected in the post-war period (1990-2012), ranging from electricity consumption to economic growth. The results of this research prove strongly, and with an econometric approach, that electricity consumption was the fundamental sourceof economic growth after the civil war in Lebanon, which explains the appearance of this causal relationship. In addition, the most relevant implication of this study is that mitigation of current power generation shortages should be a national priority, given its potential positive effect on the Lebanese economy.
本文研究了1971-2012年期间黎巴嫩电力消耗与经济增长之间的因果关系。使用协整和格兰杰因果检验检验了这种关系。根据格兰杰检验,估计结果表明,黎巴嫩的经济增长和电力消耗不是协整的,变量之间没有因果关系。然而,在战后时期(1990-2012年)发现了从电力消耗到经济增长的单向因果关系。这项研究的结果有力地证明,用计量经济学的方法,电力消耗是黎巴嫩内战后经济增长的基本来源,这解释了这种因果关系的出现。此外,这项研究最相关的含义是,鉴于当前发电短缺对黎巴嫩经济的潜在积极影响,缓解当前发电短缺应成为国家优先事项。
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引用次数: 1
Identification et classification des terres cultivables et des sites potentiels pour l’aménagement de retenues collinaires dans l’est du bassin méditerranéen: le cas du Haut-Jbeil (Liban) 确定和分类东地中海盆地丘陵水库开发的可耕地和潜在地点:上Jbeil(黎巴嫩)的案例
Pub Date : 2018-12-27 DOI: 10.22453/lsj-019.3.305329
Arnaud Caiserman, Ghaleb Faour, D. Dumas, Karine Bennafla, Georges Chemaly, Salim Kouroz
In the Mount-Lebanon, the agricultural territory of Aaqoura is significant despite high elevations reaching 2100 m. In the 1960’s, apple orchards were subsidized by a state-owned service of planning: the Green Plan, but the increasing urbanization in Lebanon requires nowadays a solid knowledge of the remaining and not yet developed lands for agricultural extension. The challenge of this study is dual: environmental and socio-economic. Two models of potential site identification and location of new cultivable lands and new hill lakes have been developed in this study. These models are based on pedologic, topographic, geologic criteria and simultaneously integrate socio-economic surveys with farmers in order to assess the convenience of such new infrastructures and to strengthen its relevance in this region. The results of these models lead to two maps that locate sites with high potential for the implementation of new infrastructure, but its analysis must be completed through survey’s results. After field verifications of these maps, 14% of the area is still available for new agricultural lands and only 4% for hill lakes on account of steep slopes, permeability of soil, and farmers stressed out economic challenges, such as the lack of profitable markets, which undermines the local agricultural growth. However, farmers are interested in new hill lakes for the purpose of satisfying orchard high water needs. This integrated approach of rural development, appeared as an interesting tool for planning office such as the Green Plan as much as for farmers since they are the first users of these infrastructures.
在黎巴嫩山,尽管海拔高达2100米,但Aaqoura的农业区意义重大。在20世纪60年代,苹果园得到了一项国有规划服务的补贴:绿色计划,但黎巴嫩日益增长的城市化要求如今对剩余和尚未开发的农业推广土地有扎实的了解。这项研究的挑战是双重的:环境和社会经济。本研究开发了两个新的可耕地和新的丘陵湖泊的潜在地点识别和定位模型。这些模型以土壤、地形和地质标准为基础,同时将社会经济调查与农民相结合,以评估这些新基础设施的便利性,并加强其在该地区的相关性。这些模型的结果产生了两张地图,这些地图定位了实施新基础设施的高潜力地点,但其分析必须通过调查结果来完成。在对这些地图进行实地核实后,由于坡度陡峭、土壤渗透性强,14%的面积仍可用于新的农业用地,只有4%的面积可用于丘陵湖泊,农民们强调了经济挑战,例如缺乏有利可图的市场,这破坏了当地的农业增长。然而,农民们对新的丘陵湖泊感兴趣,以满足果园的高用水需求。这种农村发展的综合方法似乎是绿色计划等规划办公室和农民的一个有趣工具,因为他们是这些基础设施的第一批用户。
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引用次数: 0
Rehabilitation of Historical Cities in the Mediterranean using Modular Patterns – Case Study of Sidon 利用模块化模式修复地中海历史城市——以西顿为例
Pub Date : 2018-11-01 DOI: 10.22453/LSJ-019.3.410431
F Ghoussayni, A. Ali, A Bayyati
Over the Eastern Mediterranean Coast, a historical centre,well known as the port of the Phoenicians, stands facingthe sea whereships sail across the blue horizon.There lie the oldest historicalmonuments of Sidon thatremain undocumented. This paper’saimis to study thesebuildings thathave been damaged by urbanizationbyusing methodological norms and predict their social practices that were inhabited with the lifestyle of fishermen and by which we came across many repetitive patterns that turned out to be modular. Byenvisaging the modular spatial practices of ruined buildings, their coresofwhich we had no previous information, we can restore those buildings to their original state.
在东地中海海岸,一个历史中心,被称为腓尼基人的港口,面朝大海,船只在蓝色的地平线上航行。西顿最古老的历史遗迹仍然没有记载。本文试图通过使用方法规范来研究这些被城市化破坏的建筑,并预测它们的社会实践,这些实践与渔民的生活方式相适应,通过这些实践,我们发现了许多重复的模式,这些模式后来被证明是模块化的。通过设想被毁建筑的模块化空间实践,我们可以将这些建筑恢复到原始状态。
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引用次数: 0
A Preliminary Exploratory Study on the Implications of Specialization of Labor at the Workplace: The Case of Production Managers in Lebanon, their attitude towards Specialization of Labor and the Consequences of the Implementation of Specialization at the Workplace 工作场所劳动专业化影响的初步探索性研究:以黎巴嫩生产经理为例,他们对劳动专业化的态度以及在工作场所实施专业化的后果
Pub Date : 2018-08-27 DOI: 10.22453/lsj-019.2.297304
Rania Karam, Mohamad Abou Haidar, Abbas Khawaja, Ghida Allaziki
“Specialization is for insects,diversification is for humans”.Horizontal division of labor is based on specialization of work. The basic assumption underlying horizontal division of labor is that by making each worker’s task specialized, more work can be produced with the same effort through increased efficiency and quality.However, no known studies in Lebanon were conducted to investigatethe implications of specialization of labor at the workplace.This survey studied the attitude of the production managers in Lebanon towards the specialization of labor, in general, and the consequences of the implementation of specialization at the workplace, in particular. An exploratory survey was conducted using a 17–item questionnairewith 20production managers.It was concludedthat the attitude of the production managers in Lebanon toward the specialization of labor, in general, and the consequences of the implementation of specialization at the workplace, in particular, cannot be considered completely positive; specialization offers advantages and disadvantages for both the management and the labor. Moreover, production managers are hesitant to implement specialization concept in an unpredictable environment like Lebanon; they recommend a flexible specialization.
“昆虫需要专业化,人类需要多样化”。横向分工是基于工作的专业化。横向分工的基本假设是,通过使每个工人的任务专业化,可以通过提高效率和质量,以同样的努力生产更多的工作。然而,黎巴嫩没有进行任何已知的研究来调查工作场所劳动专业化的影响。这项调查研究了黎巴嫩生产经理对劳动力专业化的总体态度,特别是在工作场所实施专业化的后果。采用17项问卷对20名生产经理进行了探索性调查。得出的结论是,黎巴嫩生产经理对劳动力专业化的总体态度,尤其是在工作场所实施专业化的后果,不能被认为是完全积极的;专业化为管理层和劳动力提供了优势和劣势。此外,在黎巴嫩这样一个不可预测的环境中,生产经理们对实施专业化概念犹豫不决;他们建议灵活的专业化。
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引用次数: 0
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Lebanese Science Journal
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