هي مجلة علمية محكَّمة تصدر دورياً عن نقابة أعضاء هيئة التدريس بجامعة سرت، أُنشأت بموجب قرار السيد نقيب عام أعضاء هيئة التدريس الجامعي بليبيا رقم (9) لسنة 2018 م، تحت إشراف الهيئة الليبية للبحث العلمي، تُعنى بنشر البحوث والدراسات العلميَّة الموثقة لأعضاء هيئة التدريس في مختلف المجالات. رقم الايداع بدار الكتب الوطنية بنغازي (212 /2019 ) ISSN:2790-0614
of morphological differences of wild olive (Olea europaea L., var. Sylvestris) in the Jabal Akhdar region in northern Libya
This study was conducted on wild olives (Olea europaea L., var. sylvestris) with the aim of studying the morphological differences of wild types spread in the Jabal al-Akhdar region in northern Libya. The study area was divided into twelve regions separated by 10 km at different altitudes from sea level, and four trees were randomly selected from each region. The study's results were subjected to variance and standard deviation analysis, which showed phenotypic variation between the types present in the study area at all the studied characteristics in terms of Fruit volume, Fruit weight, Fruit length, Fruit diameter, Fruit shape, flesh weight, flesh /fruit miss, Pit volume, Pit weight, Pit length, Pit diameter, Pit shapes index, and Flesh pit mass ratio that shows the presence of genetic diversity between the wild olive types spread in the study area. This allows these types to be used as a source of germplasm that is used to increase the desired characteristics such as fruit size, oil content, production, and resistance to environmental and biological conditions to improve and breed olives.
- Use of salicylic acid application and Azospirillum inoculation to improve wheat plant growth under saline conditions
The experiment was conducted to evaluate Azospirillum inoculation or salicylic acid (1 mM) Spray the plant leaves during growth, nitrogen fixation and On some physiological characteristics under different NaCl concentrations (100, 200, 300 mM). The results are summarized as following : Wheat, Triticum aestivum L. tolerated NaCl salt stress up to 300 mM. Salt stress led to a decrease in some growth traits especially at high NaCl concentration (300mM). Azospirillum inoculation increased shoot and root length and leaf area by 59.0, 30.3cm / pot and 87.5Cm2 / plant at 100 mM NaCl, and salicylic acid application recorded 59.0, 33.0 cm / pot and 77.8 Cm2 / plantat100 mM NaCl compared with the control treatment, respectively. Azospirillum inoculation or salicylic acid application increased wheat dry shoot and root mass at different level of NaCl as compared with control plant. Bacterization increased chlorophyll a, b and Carotenoids contents by 2.46, 2.72 and 2.51mg/g at100 mM NaCl. In addition, salicylic acid application was recorded 2.94, 2.80 and 2.58 mg/gat a concentration of 100 mM of sodium chloride, respectively. Azospirillum inoculation or salicylic acid application highly significant increased shoot soluble carbohydrates at a concentration of 100 mM of sodium chloride. Wheat plant exposed to sodium chloride salt(200, 300 mM) exhibited a significant decreased in antioxidant enzymes activity like catalase and peroxidase activities. Whereas, addition of Azospirillum sp. or Salicylic to wheat plants with different salt levels significantly mitigated salt stress deleterious effect by increase antioxidant enzymes activity. When salt stress levels increase, it leads to an increase in hydrogen peroxide in the plant, while it was decreased by Azospirillum inoculation or salicylic acid application as compared with control plants Azospirillum inoculation was increased shoot and root total N-yield by 30.6 and 6.6 mg N/pot at 200 mM NaCl, respectively. The nitrogen derived atmosphere (%NdFa) by Azospirillum inoculation recorded 42.1% and 36.3% at 200 mM NaCl concentration and salicylic acid application recorded 33.3% and 20% in the shoot and root system at 100 mM NaCl concentration, respectively. Shoot minerals content (Ca, K, P) was changed by Azospirillum inoculation at 200 mM NaCl concentration compared with control. Results show that root minerals content of wheat plant was resisted salt stress levels by Salicylic acid application.
The Effect of Alumina (Al2O3) Volume Fraction and Stir casting Conditions on Porosity and Fatigue Life of Aluminum Matrix Composites
Aluminum matrix composites (AMCs) have gained research attention because of their excellent strength to weight ratio. The current paper is focused on mechanical and microstructural characterization of stir cast aluminum (AA6063) matrix composites reinforced with three volume fractions of 150 µm Al2O3 particles. The samples under investigation were created by stir casting at various melting temperatures and stirring speed. Different produced composites were evaluated using tensile strength, porosity, fatigue life, and microscopic examination. The tensile and fatigue tests indicated that the mechanical properties of produced composites are improved as the volume fraction of alumina particles increased. Additionally, porosity levels increased with higher Al2O3 volume fractions but decreased at elevated temperatures. variations in porosity were observed when mixing speed were varied. Microstructural study exposed that Micro- Al2O3 particles were distributed uniformly throughout the matrix.
Evaluation of chemical composition, some elements and antioxidants to various solvent extracts from Ruta chalepensis L. plant growing in al-jabal al- khadar region, Libya
This study was conducted to evaluate the active substances and antioxidants of Ruta chalepensis L. in two types of different polar solvents (ethanol - hexane). It is one of the medicinal plants of commercial importance. It was collected in May 2023 in the city of Al-Qubba, located in northeastern Libya in the al-jabal al-khadar region, drying it and preparing extracts (flowering tops/seeds, leaves, stems). The results of detecting the active ingredients showed the superiority of the solvent hexane over ethanol, especially in leaves, while the highest values of mineral elements(sodium/potassium and copper) recorded for the leaves in the solvent ethanol, respectively (9.14 / 5.9 / 42), whilst the highest value for iron was recorded in the flower tips and seeds in hexane, about 2.2 ,This demonstrated the superiority of ethanol over hexane in extracting mineral elements and in addition to estimating the percentage of antioxidants for each studied parts, and they showed the highest value in the leaves and flowering tops 0.3µg/g, and the lowest value in the stems, 0.09µg/g. This supports that the higher the percentage of phenolic content of the plant, the greater its antioxidant activity, which gives it great potential for use as a natural antioxidant.
Improving the productivity of fennel (Foeniculum vulgare Miller) plants by using some humic and salicylic acid treatments
This investigation aims to determine the influence of humic acid and salicylic acid on the growth, yield and production of volatile oil of fennel (Foeniculum vulgare Miller). Four levels of humic acid (0, 4, 8, 12 kg/ha) were used. While foliar spraying was carried out with salicylic acid at two concentrations of 0.100, 200 and 300 ppm. The results obtained showed that humic acid at all levels, as well as foliar spraying with salicylic acid, led to a significant increase in plant productivity. The highest values for growth and productivity measurements of fennel plants were obtained when humic acid was applied at a high level (12 kg/ha). Foliar spraying with salicylic acid at a concentration of 300 ppm gave the highest values for all measurements under this study. Most of the joint coefficients showed a significant increase in all the studied traits. It was found that adding humic acid at a high rate (12 kg/ha) and foliar spraying with salicylic acid at a concentration of 300 ppm was the best treatment compared to the other combined treatments under the conditions of this study. It is worth noting that this study is primarily economic, as alternatives to expensive mineral fertilizers were used to improve the productivity of the fennel plant, which is widely used in various pharmaceutical industries.
Romanian entertainment shows through non-literary sources in the Tripolitan region
There are many scenes of bloody sports performances that used to take place in the circular theater, we find them depicted on the walls and floors of public and private buildings, those scenes embody the armed conflict between gladiators, the struggle of predators among themselves, or their hunting by man, and they also embody war in all its meanings, and the bloodshed involved, this research deals with the study of entertainment shows, bloody sports and their various types, through some non-literary sources represented in Mosaic and mural paintings in the Libyan Tripoli region, and also aims to shed light on its role in the Tripolitania society during the Roman era, through the methodology of archaeological research Which is based on the description and analysis of paintings and scenes.
The history of theater and its impact on the social and cultural life in Libya (1943 -1969)
Theater in Libya witnessed a prominent place in the historical theater, as the theater emerged as one of the most important landmarks of France, which is rich in Libyan archaeological cities such as the city of Leptis, Sabratha, and Cyrene. The ancient Leptis Theater, which was established in the first century before, is the best example of the antiquity and antiquity of the Libyan theatre, and the Libyan theater goes back to Libyan history. Until 1928 AD, it was first performed by Muhammad Abd al-Hadi, who was greatly influenced by the theater of (Abu Khalil al-Qabbani) The theater was interested in presenting many social, historical and national plays that contributed to raising awareness and educating the community and introducing it to some Arab and Islamic historical events and literary treasures of stories, literature and poetry. The theater presented works that address social issues. Accordingly, this study deals with the history of theater in Libya, and its social and cultural impact.
An epidemiological study of the Cutaneous leishmaniasis parasite in the northern part (Sirte, Al-Washka, Zamzam, Buqrin) of Libya from 2016 to 2019
This study was conducted to determine the extent of the spread of cutaneous leishmaniasis (CL)in the central coastal area of northern Libya specifically (Sirte, Bougrain, Zamzam, and Al-Washka), which is about 450 km to the east of the city of Tripoli. This paper aims to count the number of infections in the specified area during the period extending from 1 January 2016 to 31 march 2019. The number of cases of CL was 156 recorded in all the area, and as the highest Infection rate (3.2%) was observed in the age group (21-39yr) with 62 cases as (39.74 %) compared to the other age groups, As the lowest rate was noted in the age group (0-5 yr) years. The infection rate of leishmaniasis according to sex of the infected person was higher in males than in females (68%), (32%) respectively.
Electronic Arbitration (An Analytical Study in Libyan Civil Law)
After the widespread use of modern methods and technologies for completing electronic contracts and other electronic works, it was important to move towards using the same electronic technologies to settle disputes arising from these contracts and works, and the importance of electronic arbitration is highlighted due to its speed and flexibility in settling disputes compared to The slowness and complexity of ordinary judiciary, as arbitration is carried out via the Internet without the need for the parties to the dispute and the arbitrators to meet physically or in a specific place. The study will rely on the descriptive and analytical approach to the role of electronic arbitration in adjudicating electronic disputes in accordance with the standards of the recently issued Libyan Electronic Arbitration Law. Since international contracts in general, and electronic contracts in particular, require a quick and appropriate means to resolve disputes related to them, resort has begun to the use of electronic arbitration as one of the mechanisms that can be used in this regard. Perhaps the concept of arbitration will be defined in this study, its forms, and its disadvantages and advantages. The legal aspects related to it will help develop its mechanisms to keep pace with the development of the information society, and spread the culture of arbitration as an alternative means of resolving matters
Digital transformation and its impact on the qualitative characteristics of accounting information in financial statements "A field study on Libyan commercial banks operating in the city of Sirt"
this study aimed to recognize the impact of digital transformation on the qualitative characteristics of accounting information in financial statements in the Libyan banks from perspective of employees banks operating in Sirte. The study used the descriptive analytical approach, and the study population consisted of financial managers, internal auditors, accountants. The study used a random sample, and the sample size was (60) singles. A questionnaire was distributed to them, and retrieved with a percentage of (100%), via the SPSS statistical package for social sciences. The study concluded that, there is a high impact of digital transformation on the qualitative characteristics of accounting information (relevance, reliability, comparability, understandability), of banks operating in Sirte. The study recommended increasing interest in digital transformation in covering all banking services electronically, to enhance the qualitative characteristics of accounting information and its uses in the banking sector.
Qualitative Characteristics of Accounting Information
The modern prosody rhythms through Ibn Sanaa Elmolk's Mowashahat
This search concerned about one of rhythmic speech arts at arabs issue, which specified in music of poetry. It aimed to detection of some modern prosody rhythms, and its natural. All that through "almowashahat" art. The search adopted a lot of Ibn Sanaa Elmolk's mowachahat for analyzing through prosody and descriptive study, and inductive approach which can giving a lot of general results. Finally, this search concluded to a lot of important results about music of the almowachahat; like what concerning about fragmentation technique of poetry at prosody researchers, and finding a lot of modern prosody rhythms concerning almowachahat.
The role of the National Center for Disease Control in environmental awareness and epidemic Floods in the city of Derna as an example
The topic of this research revolves around the important role of the National Center for Disease Control in increasing the environmental and health awareness of members of society. From this standpoint, the problem lies in the lack of awareness and lack of knowledge of the danger lies in epidemic diseases, and the speed of their outbreak and spread in the event of natural disasters such as earthquakes and floods. The emergence of some infectious diseases and other epidemic outbreaks. The research aims to identify the importance of environmental awareness among community members, learn about preventive measures for residents of the city of Derna following the floods, identify the epidemiological situation through reports of the National Center for Disease Control, and evaluate the management of the National Center for Disease Control and the monitoring and rapid response teams in the flood disaster in the Libyan city of Derna and the regions. adjacent to it. The content analysis approach was used for reports, television interviews, and epidemiological bulletins issued by the National Center, and one of the most prominent results was that the National Center for Disease Control had an important and effective role in disease prevention, awareness, health education, treating disease cases, referring them to competent health facilities, and following up on them.
Study of the physical and chemical properties of saman manufactured using the traditional method
This research was conducted to study the physical and chemical properties of saman manufactured in the traditional method. The study included estimating the physical and chemical properties of saman manufactured in the laboratory. The results of the physical and chemical properties of the saman manufactured in the laboratory showed that the melting point was 33.86°C, the specific gravity was 0.902, the refractive index was 1.4464, the apparent hardening test was 15.6°C, the freezing point was 12°C, the saponification number was 230.9 mg KOH/g, materials Unsaponified 0.524%, and the iodine number was 34.57g iodine/100g.
Response of germination and growth seeds of two varieties lentils (Brisch and Shawish) to soaking in different concentrations of sodium chloride salt NaCl
A factorial experiment was conducted in the seed technology laboratory, department agronomy of agriculture, Omar El Mokhtar University during season 2023 to study response of two Lentil varieties (Brisch and Shawish) to germination and seedling growth when treated using different concentrations of sodium chloride salt NaCL (control, 25 Mml,50Mml and 75Mml)in a randomized complete block design. The results indicated that the brish variety was superior to the shawish variety in average traits (germination percentage, shoot length, root length, shoot wet weight, root wet weight, shoot dry weight, germination rate (GR), germination index(GI), tolerance index (TI) and seedling vigour index (SVI). Increasing sodium chloride salt levels up to 100 mML led to a decrease in the germination rate and most of the studied traits, as the lowest values were recorded when treated with 100 Mml sodium chloride salt concentration of (2.280 cm ,0.767 cm, 0.0103 g, 0.522,0.931 and 0.273) for the characteristics of shoot length, root length, root wet weight, root dry weight, germination rate(GR), germination index(GI) and tolerance index (TI), respectively, compared to the control treatment.
Properties for Certain Subclasses of Meromorphic Functions Associated with Differential Operator
In this paper, we introduce and study the classes and of meromorphic univalent functions in and investiage distortion theorems, convex linear combinations and integral transforms of functions belonging to these classes. Keywords and phrases: Analytic, meromorphic starlike functions, meromorphic convex functions, integral transforms, Hadamard products.
الإمَـام مُحَمّد بْنِ إِدْرِيسٍ الشَّافِعِي اللُّغَوِي والأَدِيْب (ت 204 هـ)
ثَمةَ جانب في شخصية الإمام الشافعي العلمية لم ينل حظه من العناية والاهتمام، وهو الجانب اللغوي والأدبي في حياة هذا الإمام الجليل ، وهذه محاولة ومقاربة لإماطة اللثام عن هذا الجانب لديه ، لِمَا رأيت من كثرة الروايات والأخبار في هذا السياق، تحتاج إلى تتبع واستقراء ، وأن تُفرد بالتصنيف...لأنها تختص بإمام جليل من أئمة الدين، كان "كالشمس للدنيا، وكالعافية للناس " كما جاء في الأثر. وأقيم هذا البحث على مبحثين:الأول: في التعريف بالإمام الشافعي، اسمه، ونسبه ، ونشأته، وصفاته، وفضائله وأدبه في طلب العلم. والثاني: في لغته، وفصاحته، ونماذج من مسائله اللغوية، وشخصيته الأدبية وموهبته الشعرية. آمل أن أكون قد وُفقت في الكتابة عن هذا الموضوع، وأضفت شيئاً جديداً ينتفع به كل مهتم بسيرة الإمام الشافعي، وبالدراسات اللغوية والأدبية عموماً. والله من وراء القصد، هو حسبي، عليه توكلت وإليه أنيب.
الخطاب الإعلامي الليبي ودوره في صنع الكراهية
No one is afraid of the role played by the media through its impact on a large sector of society, especially with the development of knowledge and technology that accompanied the enormous information revolution. And with the changes that have occurred within the Libyan society for years and have had a great impact on the seeds of discord between the brothers, and accompanied the dispute from the use of different parties to the various media, to present their ideas and opinions, and the other parties, using the Arabic language to express the media discourse to transfer Ideas, opinions and treatises. . The Libyan media discourse has mastered the employment of the various media, but unfortunately, its speech carries the content of hatred and hatred, and the rejection of the other and regional, tribal and political fanaticism. The Libyan-speaking Arabic-language media dealt with the Libyan crisis in a non-professional way, A speech of hate and hatred is a speech that calls for division and disagreement. The duty of the Libyan media is to assume professional and moral responsibility for the adoption of media policies calling for the rejection of racism and hate speech through the adoption of an intermediate media discourse that recognizes the extent of professional and historical responsibility that requires the adoption of a language and speech aimed at promoting rapprochement among the people of the country One, which would work to bring together different points of view.
Impact of Social Media Sites on attitudes of Sirte University students - Faculty of Education, Sirte "field study"
This research aims to identify the impact of social media (networks) sites on attitudes of students in the Faculty of Education and what role do social media play whether direct or indirect impact. To do so, the researcher designed a questionnaire survey and after examining the validity and reliability, 60 questionnaires were distributed to the sample members. Respondents were students from different disciplines and classes. The questionnaire included (23) questions in which the researcher sought to determine the impact of social media (networking) sites on attitudes of students in a number of aspects. The research concluded with a set of results that derived from analyzing the data contained in the questionnaire. Based on the results of this research, a set of recommendations were suggested.
درجة تأْثير مُقرر الثقافة السّياسيّة في تشكيل الوَعْي السّياسي "دراسة ميدانية على عيّنة مِن طلاب كلية الاقتصاد والعلوم السياسية- جامعة اجدابيا"
The present study aimed at identifying the effect of the political culture course on the formation of political awareness among a sample of students of the Faculty of Economics at the University of Ijdabia. The total population of the study consists of all students during the fall semester 2017-2018. The total number of students (1486) (5%), with a sample size of (74) students. This study used questionnaire as a tool for collecting data. The study reached a number of results, including: The level of knowledge of the students of the Faculty of Economics University of Ajdabia subjects of the decision of political culture, has come high according to the view of these students, and the current study that the level of public political awareness among students of the Faculty of Economics at the University of Ijdabia was high, according to the view of these students, The study showed that there is a statistically significant relationship between the level of knowledge of the students of the Faculty of Economics, University of Ajdabia, the subjects of the course of political culture and the level of political awareness of these students.
The impact of globalization on human resources management (An intellectual study, from multiple perspectives)
There are many policies and global variables that affect and reflect the results on various aspects of human life at the economic level, social, cultural or political, as well as at the level of civilization, and most of these variables widespread phenomenon called globalization, The importance of research is that it is exposed to the phenomenon that results in many results in various economic, social, cultural and political that result in the absence of sound and scientific preparation to address them may result in some negative effects The research aims to shed light on: the different concepts of the concept of globalization and the different concepts of the concept of human resources management and the importance, objectives and functions of human resources management in light of globalization and the impact of globalization on human resources management The most important results of the research was the need to pay attention to the rehabilitation of human resources commensurate with the revolution of knowledge so that most of the skills and knowledge possessed by human resources commensurate with the requirements of globalization, and research found that meeting the challenges of globalization in the field of human resources management requires the development of structural strategies based on reconsideration In organizational policies, empowering employees, and redesigning jobs.
The Impact of Human Resource Management Practices on Employee Performance in a company of Hatif Libya (A field study on sample of employees at company of Hatif Libya in the city of El-Beida)
The purpose of this study was to determine the impact of HRM practices on employee’s performance in the company of Hatif Libya in the city of El-Beida. Random sampling technique was used to collect data for this study. A questionnaire based on (39) items was distributed among (78) employees of Hatif Libya for data collection. The statistical software package (SPSS 22) was used to analyze the data. To check the association between HRM practices and employee’s performance, Pearson correlation coefficient and regression analysis was applied on the data. The results indicate that HRM practices, which were represented in: Compensation system, Performance appraisal, Selection and appointment, and Training and development have a positive impact on employee’s performance. Hence, it is proved that independent variables contribute positively towards change in the dependent variable. Finally, the study suggested some recommendations that could realize improvement in employee performance in company of Hatif Libya in particular and other companies in general.
Career Path Planning and Its impact on Continuous Commitment: Afield study on the investment Complex for Building Materials in Missurata
The paper aims to identify the impact of career path planning in the continuous commitment of employees in organizations in general and in the company of the investment complex for the construction materials in Misurata in particular. The study adopted the descriptive approach to suits the nature of research problem and its objectives. The data were collected using the comprehensive survey method and the population was all national employment within the complex of managers, heads of departments and normal employees. The number of distributed questionnaires were (234) according to the last statistic and were analyzed by using the statistical packages of social sciences (spss). The most important findings of the study that the complex suffers from weakness in the career path planning, and this weakness was apparent in the failure of the management of the complex in the process of matching the skills and experience of workers with the jobs they doing, as well as the vagueness faced by workers in the knowledge of opportunities for advancement available to them. In addition to that neglect of the management of the complex to involve employees in their career path planning. The study also found that the majority of workers feel a very high continuous commitment towards the complex, meaning that they will prepare to leave if they have a job opportunity in another organization. The study concluded with a number of recommendations, the most important of which is the formation of a specialized committee of experts to review and develop career plans followed by the complex, organize seminars, conferences and workshops to guide employees and inform them about the available opportunities for their advancement, and involve employees in developing their career path and with taking into consideration their suggestions towards that. Finally, the company should determine clear criteria for what is required of the employee to ensure his gradient in the functional ladder.
The Inhibition of Mild Steel Corrosion by Sulphur Containing Organic Compound
The inhibition of mild steel corrosion in "2.0 M sulphuric acid" solution by a Sulphur containing organic ompound namely " Methyl Carbazodithoate " has been studied at temperature 30 ℃ by weight loss technique. Adsorption isotherms were tested for their relevance to describe the adsorption behavior of methyl carbazodithoate. The experimental results show that the test inhibitor has a promising inhibitory action against corrosion of low carbon steel in the medium investigated. The inhibition efficiency was found to increase with a corresponding increase in the concentration of the inhibitor. The adsorption mechanism of methyl carbazodithoate inhibition is also proposed. The lower adsorption of sulphate ions on the carbon steel metal surface permits more space for the adsorption of inhibitor molecules and enhances inhibition of corrosion. Finally, the obtained results in this work indicates that the sulphur-containing inhibitor compound namely; "methyl carbazodithoate" compound is an effective inhibitor for corrosion inhibition of carbon steel in sulphuric acid solution.
Study on effect of cigarette smoking on haemoglobin and blood lipid profile in males in Brack Alshati, Libya
Smoking in different forms is considered as a chief hazard factor for atherosclerosis, coronary heart sickness and peripheral vascular disorders. Aim: the aim of this study was to evaluate the effect of cigarette smoking on lipid profiles and haemoglobin levels in adult males smokers compared with non-smokers .Material and methods: this study was performed on sixty subjects from which thirty were smokers and thirty non smokers they were used as (controls). Mean serum lipid profiles and haemoglobin levels were measured in smokers and non- smokers .Results: the level of haemoglobin for the smoker was significantly decreased compared with that of non-smokers(p<0.05) ), whereas the CHOL, LDL, HDL levels for the smoker were significantly deferent when compared with the controls (p<0.05), and TG was not significantly deferent (p˃0.05) compared with the control. Conclusion: there were effect of cigarette smoking on haemoglobin and serum lipids ( CHOL, LDL, HDL) ,and there was no effect of cigarette smoking on the TG level on smokers.
ANALYSIS OF OZONE MASS TRANSFER IN A KENICS STATIC MIXER USING THE STEADY STATE BACK FLOW CELL MODEL (BFCM)
Static mixers have been successfully employed in water and wastewater treatment, particularly in water ozonation for disinfection and oxidation purposes. Producing higher concentration of ozone requires new contactors that operate efficiently at low gas/liquid ratio. The Kenics static mixer can meet these requirements and therefore enhance the ozone mass transfer rate [1]. The first objective of this study is to use the steady state back flow cell model (BFCM) developed by Tizaoui and Zhang [1] in order to predict the ozone concentration profile in the gas and the liquid phases along the Kenics static mixer. The second objective is to develop a Matlab code for the BFCM of the static mixer. The third objective of the steady state BFCM is to study the impact of the main characteristic parameters: back flow ratio of, the length of the Kenics static mixer, flow rate of water, and gas flow rate, volumetric liquid mass transfer coefficient and temperature on ozone concentration profile in the gas and liquid phases and respectively along the height of the Kenics static mixer.
الآثـار النفسية والاجتماعية لدى مبتوري الأطـراف في أحداث حرب ليبيا عام 2011 "دراسة ميدانية على عينة من مبتـوري الأطـراف بمـدينـة إجـدابيــا"
تهدف هذه الدراسة إلى التعرف على أهم الآثار النفسية والاجتماعية لدى مبتوري الأطراف في مجتمع البحث, ولتحقيق هدف هذه الدراسة فقد أعتمد الباحثان على أسلوب البحث الوصفي التحليلي لبيانات البحث ومنهج المسح الاجتماعي عن طريق عينة البحث وذلك بتطبيق مقياس على عينة من مبتوري الأطراف بمدينة اجدابيا قوامها (63) مبحوثاً, وتوصل البحث إلى أن هناك فروقاً ذات دلالة إحصائية علي مقياس الآثـار النفسية والاجتماعية لدى مبتوري الأطـراف في أحداث حرب ليبيا (2011), وكذلك هناك فروق ذات دلالة إحصائية تعزى لمتغير الحالة الاجتماعية علي مقياس الآثـار النفسية والاجتماعية, وهناك فروق ذات دلالة إحصائية تعزى لمتغير المؤهل العلمي علي مقياس الآثـار النفسية والاجتماعية, وبين البحث أيضاً بأنه لا توجد فروقاً ذات دلالة إحصائية تعزى لمتغير العمر علي مقياس الآثـار النفسية والاجتماعية.
Effect of growth regulator Paclobutrazol (PBZ) on the growth of barley plant Hordeum Vulgare L in the Agricultural Ariel field during the agricultural season
This study was performed in the field during the agricultural season (November to April). In order to study the effect of three concentrations of the growth regulator Paclobutrazol on the Barley plant Hordeum vulgare L. Seeds of H. vulgare were obtained from the research center in Misratah, Libya. The treatments of (PBZ) used in this study were (10 ml / litre, 50 ml / litre, 100 ml / litre and control). The aim of this study is the effect of the growth regulator Paclobutrazol on the growth of Barley. It was found that the growth regulator of culter has an effect on barley plants. This effect is on the inhibition of Gibberllin (GA) biosynthesis that leads to less cell elongation and cell division, thereby making plants more compact, which may have a range of benefits in crop production. The growth regulator treatments lead to development of short stems within the barley cultivar. The treatment of (50 ml/l) has (120%) more branch number than control. width and thickness of barley leaves were increased under (50 ml/L) treatment.it was 1.7 times higher than in control. There was also increased in the yield quality of barley plants under the treatment of (50 ml/L)
التضخم في الاقتصاد الليبي: أسبابه وآثاره دراسة تحليلية لمنشورات مصرف ليبيا المركزي خلال فترة 2009-2016
يعتبر التضخم من أهم الأزمات لدي جميع الدول ذات الاقتصاد القوي والضعيف حيث مرت اغلب الدول المتقدمة والنامية بهده ألازمه ولكن باستخدام الخطط الاقتصادية لمتطلبات المرحلة استطاعت التعافي من هده الأزمة والنهوض بالاقتصاد, ويعد الاقتصاد الليبي في الفترة ما بعد عام 2011 أحد الأمثلة الذي يعاني من هذه الظاهرة التي تفاقمت وأصبحت أزمة تهدد اقتصاديات الدولة الليبية واستمرارها. هدفت هذه الدراسة بشكل رئيسي إلي تحديد ومناقشة أسباب ظاهرة التضخم وآثاره علي الاقتصاد الوطني الليبي . فقد اعتمدت الدراسة علي أسلوب التحليل الوصفي والتحليلي لمنشورات وإحصائيات مصرف ليبيا المركزي خلال هده الفترة (2009-2016) من خلال تحليل هده البيانات وفقاً للمعايير الاقتصادية والمحاسبية للتضخم في محاوله لفهم تداعيات هده ألازمه واستخلاص النتائج الحقيقية وراء هذه الأزمة. وقد توصلت الدراسة إلي العديد من النتائج الهامة والمتمثلة في أن اعتماد مصدر وحيد من الإيرادات لتوفير العملة الأجنبية وهو الصادرات النفطية واستيراد كافة المتطلبات الاستهلاكية المباشرة وغير المباشر من الخارج وعدم وجود وتنفيد الضوابط القانونية في دخول وخروج السلع من المنافد البحرية والجوية والبرية وعدم الاستقرار الأمني أدي إلي ظهور وتفاقم أزمة التضخم التي أثرت سلبا علي مستوي الخدمات العامة والنشاط الاقتصادي في ليبيا. وقد تطرق الباحثان من خلالها إلي الإفضاء بتوصيات يمكن من خلالها العمل على مساعدة متخذي القرارات في إنهاء أو الحد من أزمة التضخم.
Road accidehts and traffic safety levei in Libya ( Geo - ahalytical study )
This study deals with the main objectives of knowing the volume of trafflc accidehts in Lidya and to nighlight the seriousness of incidehts by calculating the most imPortaht indicators agreed internatiohally, namely: - From the numbey of deceased to th number of PeoPle injued due to traffic accident ts . - Number of deaths due to traffic accidents Per 100,000 inhabitahts. - Number of deaths due to traffic accidents Per 10,000 Cars. The ayerage of the fIrst indicator in Libya is high compared to other Arab countries, As for the average of the second index, Libya ranked fIrst, surpassing all its Arab couhterParts. As for the third indicator, it is alsoa high indicator in Libya, where it exceeds many Arab countries, the studyalso Providea comparison between some Libyah cities in terms of terms of applying indicators thus, the study found a difference in the number of accidehts and the size of traffic safety in each city, ProPosals were also made to improve the Level of traffic safety in Libya, lt includes a range of ProPosals Concerning roads, regulatory aspects, A thid related to the driver and behayior of the vehicle, and the fourth relates to the man of Passage, Bearing in mind that such ProPosals are flexible and aPPlicable And commensurate with the requirements and cohditions and Possibilities of the couhtry, And meet its aspirations to wards safe roads for all users of these roads.
الضغوط الاجتماعية وعلاقتها بعملية الاختيار والتعيين
هدفت هذه الدراسة إلى التعرف على الضغوطات الاجتماعية وعلاقتها بعملية الاختيار والتعيين ,مصرف الجمهورية فرع ترهونة, ومن خلال الزيارة الميدانية اتضح أن المصرف قيد الدراسة يعانى من تدنى في معدلات الأداء وأن الضغوطات الاجتماعية لها بالغ الأثر في عملية الاختيار والتعيين وعدم وضع الشخص المناسب في المكان المناسب سواء أكان ذلك من خلال تولى مناصب قيادية داخل المصرف أو في عملية التعيين , ومما سبق يتضح جليا معرفة المشكلة الخاصة بهذه الدراسة. اعتمدت الدراسة على المنهج الوصفي لملائمته لطبيعة الدراسة والأهداف التي سعت لتحقيقها، أما مجتمع الدراسة فهو مكون من الموظفين العاملين في مصرف الجمهورية فرع ترهونة. وكانت صحيفة الاستبيان هي اداة جمع البيانات للحصول على المعلومات اللازمة التي تساعد على اختبار الفرضيات وتم استخدام أسلوب صدق المحتوى حيث كان عدد القوى العاملة بالمصرف حوالى (60)موظفاً، وقد تم اختيار عينة عشوائية طبقية بلغت (40) موظفاً, أي أن ما تم توزيعه يمثل نسبة 66% من أجمالي الموظفين وتم استرداد 33 صحيفة استبيان أي بنسبة 83% وكانت الصحف المفقودة 7 صحف استبيان وبلغت نسبة الفاقد 17% , ولتحليل البيانات التي تم الحصول عليها تم الحصول على النسب المئوية والتكرارات ودرجة التأييد لهذه الفقرات. ومن خلال ما توصلت إليه الدراسة أن البيئة الخارجية المتمثلة في البيئة الاجتماعية تؤثر في مدخلات المصرف من القوى العاملة والتي في العادة تكون غير متخصصة وغير مؤهلة وهذا بالتالي يكون له الاثر المباشر في تدنى الخدمات, ومن اهم النتائج الجديرة بالذكر: عدم وضع الشخص المناسب في المكان المناسب بما يتلاءم مع تخصصه ومؤهله. يتضح من الدراسة أن المصرف يقوم بالإعلان عن الوظائف الشاغرة داخله, وليس خارجه. بينت الدراسة أن المسؤولين عن عملية الاختيار للمناصب الإدارية داخل المصرف أغلبها يتم بناء على الضغوط الاجتماعية , وإن عملية التعيين أيضا تتم تحت الضغط. وخلصت الدراسة الى العديد من التوصيات والاقتراحات أهمها: يجب على المصرف اخذ مبدأ التخصص والمؤهل في عملية الاختيار والتعيين. توصي الدراسة مراعاة العدالة في تصرفات الإدارة العليا نحو الموظفين دون تمييز والابتعاد عن المحاباة. تقترح الدراسة الإعلان عن الوظائف الشاغرة فور شغرها في وسائل الإعلام المختلفة حتى تتحصل على كوادر جيدة. ضرورة أن يعزز المصرف دراسته لحجم القوى العاملة لكى يظل هناك توافق بين عدد العاملين وحجم العمل المخطط له. ضرورة اصدار لوائح وقوانين تتعلق بعملية الاختيار والتعيين حتى لا تتعرض للضغوطات الاجتماعية . إن مواكبة التطور التكنولوجي يسهل اجراءات الزبائن ويعزز قدرة المصرف على جذب زبائن جدد وخلق ايرادات له . ترى الدراسة أن التدريب بشقيه الخارجي والداخلي يزيد في معدلات الاداء لدى العاملين . تفويض إدارة الموارد البشرية بتقييم أداء وسلوك العاملين , ودراسة ملفاتهم الشخصية وما إذا ما كانت الوظائف التي يشغلونها الآن تتماشى مع مؤهلاتهم ورغباتهم ودرجتهم الوظيفية .