المنشورات العلمية لـجامعة طرابلس

احصائيات منشورات جامعة طرابلس

  • Icon missing? Request it here.
  • 112

    مقال في مؤتمر علمي

  • 298

    مقال في مجلة علمية

  • 15

    كتاب

  • 7

    فصل من كتاب

  • 2

    رسالة دكتوراة

  • 2

    رسالة ماجستير

  • 0

    مشروع تخرج بكالوريوس

  • 13

    تقرير علمي

  • 1

    عمل غير منشور

  • 0

    وثيقة

Successful Anatomical Access for Surgical Removing of the Distal Fracture of Splint Bones in Thoroughbred Horses (Case Study)

Poor performance in athletic horses due to musculoskeletal affections is very common in Libya. Two mature thoroughbred horses suffering from poor performance and history of moderate degree forelimb lameness were admitted to the Aswany Private Equine clinic in Tripoli, Libya. The study is aiming for presenting a simple, time effective, cost effective surgical procedure to treat distal simple splint bone fracture in thoroughbred horses. Horses were examined thoroughly for the common muscle, hoof, and tendons affections. A progressed unilateral left forelimb swelling involving the lateral distal part of the fourth metacarpal bones was noticed. Three radiographs were taken to each horse including latero- medial, dorsolateral-palmaromedial, and palmarolateral-dorsomedial views to assess both splint bones. The radiographs showed that there is a complete fracture involving the distal extremity (button) of the fourth metacarpal bones. Surgical excisions of the fractured part of the splint bones have been decided to treat these horses. To precisely locate the site of the bone fragments, 1.5 mm stainless steel wires were placed over the distal part of splint prior to taking the radiographs. The surgical sites were aseptically prepared, and the horses were then sedated via intravenous injection of xylazine at a dose rate of 1 mg/kg body weight. The site of surgical incision was infiltrated with 2% lidocaine. The bone fragments were then removed after performing the surgical incision. The sharp end at the distal end of the proximal part of the splint bone was then smoothening with a scissor. The surgical incisions were then routinely closed and the post-operative care and radiographs were taken. The surgical incision made complete healing within two weeks. Both horses were followed up for up to three years post-operation, and they did well compared to what has been done in other studies. We concluded that the surgical technique used to treat the two horses with splint bone fracture enrolled in the current study is a simple and effective procedure. arabic 19 English 106
Mohamed H. Abushhiwa, Osma K Sawesi, Khaled A. Milad, Aiman. A. Shalgum, Abdulrhman Mohamed Salah Alrtib(9-2019)

The Effect of Mobility on the Performance of VOIP Application in WiMax Networks

in wireless networks, mobility is an important issue because Internet connectivity can only be effective if it is available during the movement of a node. To enhance mobility, the IEEE802.16e standard has set procedures to design wireless access systems to operate on the move without any disruption of services. The major difference between mobile WiMAX and fixed WiMAX is mobility support. However, speed and trajectory of nodes are unpredictable and can vary even in identical circumstances. In this paper mobile node trajectory is studied under different codecs schemes in order to evaluate the effect of node movement, towards or away from the base-station, on end to end delay, jitter, mean opinion score and throughput of a VoIP application. The results showed that trajectory inward improves network performance since mobile node gets closer to the base-station and hence signal is improved and less power is required. arabic 12 English 67
I. Almerhag, N. Aboalgasem(5-2017)
موقع المنشور

Effect of Channel Multipath Fading and Node Trajectory on VoIP QoS in WiMAX Networks.

Abstract: In WiMAX networks, the biggest challenge is to overcome the effects of fading especially when nodes are mobile. The multipath nature of channel leads to ISI (Inter Symbol Interference) and the severity of ISI effects increases with bandwidth increase and this might get worse when nodes are moving . The radio link between the Base Station and Service Station/Mobile Station can be a LOS or it can be a NLOS. The environmental objects and features like buildings, weather conditions can severely obstruct NLOS signal. In this paper the effect of pedestrian multipath and node mobility in WiMAX network is studied under different codecs schemes in order to evaluate the effect of multipath channel fading when nodes are moving on the QoS parameters end to end delay, jitter, mean opinion score and throughput of a VoIP application. The obtained results showed that multipath fading with mobile nodes has sever effect on throughput and MOS value for all studied codecs and on the other parameters the effect varies depending on the implemented codecs. arabic 14 English 71
N. Aboalgasm, I. Almerhag , A. Daeri(3-2018)
موقع المنشور

Performance Analysis of Spoken Arabic Digits Recognition Techniques

A performance evaluation of sound recognition techniques in recognizing some spoken Arabic words, namely digits from zero to nine, is proposed. One of the main characteristics of all Arabic digits is polysyllabic words except for zero. The performance analysis is based on different features of phonetic isolated Arabic digits. The main aim of this paper is to compare, analyze, and discuss the outcomes of spoken Arabic digits recognition systems based on three recognition features: the Yule-Walker spectrum features, the Walsh spectrum features, and the Mel frequency Cepstral coefficients (MFCC) features. The MFCC based recognition system achieves the best average correct recognition. On the other hand, the Yule-Walker based recognition system achieves the worst average correct recognition. arabic 7 English 60
A. Ganoun, I. Almerhag(6-2012)
موقع المنشور

Vancomycin-Resistant Enterococci: A Review of Antimicrobial Resistance Mechanisms and Perspectives of Human and Animal Health

Vancomycin-resistant enterococci (VRE) are both of medical and public health importance associated with serious multidrug-resistant infections and persistent colonization. Enterococci are opportunistic environmental inhabitants with a remarkable adaptive capacity to evolve and transmit antimicrobial-resistant determinants. The VRE gene operons show distinct genetic variability and apparently continued evolution leading to a variety of antimicrobial resistance phenotypes and various environmental and livestock reservoirs for the most common van genes. Such complex diversity renders a number of important therapeutic options including "last resort antibiotics" ineffective and poses a particular challenge for clinical management. Enterococci resistance to glycopeptides and multidrug resistance warrants attention and continuous monitoring.
Mohamed O. Ahmed , Keith E Baptiste (6-2017)
موقع المنشور

Colistin-resistant carbapenemase-producing isolates among Klebsiella spp. and Acinetobacter baumannii in Tripoli, Libya

The emergence of acquired carbapenemases is a serious threat to public health worldwide, forcing the use of last-resort antibiotics such as polymyxins. Use of such molecules had recently led to the emergence of colistin-resistant carbapenemase-producing isolates, leaving only a few therapeutic options for the near future. Here we report the identification of colistin-resistant isolates among a collection carbapenemase-producing Enter- obacteriaceae and Acinetobacter baumannii isolates.
Nicolas Kieffer , Ahmed MO et al.(6-2018)
موقع المنشور

Identification of phenolic compounds, antibacterial and antioxidant activities of raisin extracts

In this study, antibacterial, antioxidant and phenolic compounds of raisin extracts was evaluated. Different solvent extraction methods were utilized to extract phenolic compounds from raisin. The phenolic compounds of raisin extracts was determined using HPLC and three compounds were found, catechin, quercetin and rutin. The antibacterial activity of the acetonic extract was tested against four bacterial pathogens viz. Staphylococcus aureus, Pseudomonas aeroginosa, Salmonella typhimurium and Escherichia coli using both disk diffusion and minimum inhibitory concentration (MIC) methods. The acetonic extract exhibited the highest activity against Staphylococcus aureus with zone of inhibition of 14mm and the MIC of 25 mg/ml. However, there was a little activity against E. coli and S. typhimurium. The methanolic extract showed good antioxidant activity as indicated by 2,2-diphenyl-1-picrylhydrazyl free radical assay (DPPH). In conclusion, raisin contains potent phenolic compounds and their application might function as promising natural preservative and antimicrobial agents in food industry and also good antioxidant food that helps to minimize the risk of degenerative diseases. arabic
Yousef M Abouzeed, Ahmed MO Et Al. (12-2018)
موقع المنشور

An evolving research culture: Analysis of biomedical publications from Libya, 2003–13

Understanding the publication output of a country’s biomedical research can provide information for strengthening its policies, economy, and educational systems. Yet, this is the first bibliometric study to date to analyze and provide an in-depth discussion of the biomedical research productivity from Libyan academic institutions. The biomedical research productivity of higher education institutes and affiliated hospitals from Libya, with a focus on the higher education sector, was analyzed and discussed for the period of 2003–13 using the PubMed database. A questionnaire online survey was also developed to obtain opinions of Libyan scientists on productivity status and quality of research output. A total of 345 peer-reviewed articles were included in the analysis and were authored by researchers in the cities of Benghazi (32%), Tripoli (29%), Al-Zawiya (9%), Al-Bayda (8%), Sabha (3%), Misrata (3%), and Al-Khoms (1%). The papers included co-authors and/or corresponding authors from over 40 other countries were published in 179 journals covering a broad range of biomedical topics. Questionnaire (44% response rate) indicated research is largely self-funded. Information along with accurate, comprehensive, and transparent metrics can be applied to aid governmental and nongovernmental institutions to develop stable infrastructures for academic communities to achieve effective research performance and innovation.
Mohamed O. Ahmed, Et Al.(10-2017)
موقع المنشور