LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 101

Search options

  1. Article ; Online: Toxoplasmosis in humans and animals in Saudi Arabia: A systematic review.

    Mohamed, Khalil

    Journal of infection in developing countries

    2020  Volume 14, Issue 8, Page(s) 800–811

    Abstract: Introduction: The causative agent of toxoplasmosis is Toxoplasma gondii (T. gondii); an intracellular obligate parasite causes abortion in humans and animals. The review aims to clarify the situation of the disease in humans and animals in different ... ...

    Abstract Introduction: The causative agent of toxoplasmosis is Toxoplasma gondii (T. gondii); an intracellular obligate parasite causes abortion in humans and animals. The review aims to clarify the situation of the disease in humans and animals in different parts of the country so that data will be available for any future work regarding the control of the disease.
    Methodology: All humans and animal research studies published in the last 18 years between 2000 and 2018 in Saudi Arabia were targeted, including prevalence or seroprevalence of T. gondii infection or antibodies. The searched strategy included human or pregnant women or children as well as animals or any particular species.
    Results: The result showed that approximately one-third of the population in Saudi Arabia had IgG seropositivity, and 6.4% had IgM seropositivity. Moreover, the disease was widespread in almost all the regions except AL- Jouf, where no data published. The prevalence of the chronic infection was high in sheep in Riyadh 68%, and the prevalence of acute was found in Najran 19% in sheep, goats, and camels.
    Conclusions: The current article showed the importance of the disease in Saudi Arabia for both humans and animals. The educational programs should be established to impart people to avoid the infection by the parasite.
    MeSH term(s) Animals ; Antigens, Protozoan/blood ; Female ; Humans ; Male ; Prevalence ; Risk ; Saudi Arabia/epidemiology ; Toxoplasma/immunology ; Toxoplasmosis/epidemiology
    Chemical Substances Antigens, Protozoan
    Language English
    Publishing date 2020-08-31
    Publishing country Italy
    Document type Journal Article ; Systematic Review
    ZDB-ID 2394024-4
    ISSN 1972-2680 ; 2036-6590
    ISSN (online) 1972-2680
    ISSN 2036-6590
    DOI 10.3855/jidc.12648
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Monopolar versus Bipolar Transurethral Resection of Non-Muscle Invasive Bladder Cancer

    Rabee Yassein / Ayman Edrees / Mohamed Khalil

    International Journal of Medical Arts, Vol 4, Iss 1, Pp 2049-

    2022  Volume 2057

    Abstract: Background: Recently, the bipolar current has been used as an alternative technique to conventional monopolar current which was used traditionally in trans-urethral resection of bladder tumor [TURBT].The aim of the work: To evaluate the safety and ... ...

    Abstract Background: Recently, the bipolar current has been used as an alternative technique to conventional monopolar current which was used traditionally in trans-urethral resection of bladder tumor [TURBT].The aim of the work: To evaluate the safety and efficacy of monopolar versus bipolar TURBT in the management of primary non-muscle-invasive bladder cancer [NMIBC].Patients and Methods: This prospective study was conducted on 80 patients [70 males and 10 females] aged 36 years or older, presented with primary bladder mass from March 2016 to March 2020 at the Urology Department of Al-Zahraa University Hospital. Patients were classified randomly into two groups: group [A] included 40 patients who had M-polar TURBT, and group [B] included 40 patients who had B-polar TURBT. The main studied outcomes were the frequency of intraoperative and postoperative complications, as well as the rate of recurrence after 12 months of follow-up.Results: There was no statistical difference between the two groups regarding demographic data of patients and characters of the tumor. Intra-operatively, there was a significant difference between both groups regarding obturator reflex, which was higher in M-polar TURBT group than B-polar TURBT group [25% vs. 5%; P= 0.013] respectively. Operative time was shorter in the B-polar TURBT group than M-polar TURBT, but with no statistically significant difference. There was a mild drop in hemoglobin & hematocrit value in M-polar TURBT than the B-polar TURBT, but with no statistically significant difference. There was no significant difference in the recurrence rate of both groups after one year of follow-up.Conclusion: Our study revealed that B-polar TURBT is more safe and effective in the management of primary bladder tumors.
    Keywords monopolar ; bipolar transurethral resection ; non-muscle invasive bladder cancer ; Medicine (General) ; R5-920
    Subject code 610
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Al-Azhar University, Faculty of Medicine (Damietta)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  3. Article: Immunohistochemical Changes of Liver Fasciolosis in Cattle and Sheep in Jeddah, Saudi Arabia

    Alsulami, Muslimah / Mohamed, Khalil

    Indian journal of animal research. 2021 Dec., v. 55, no. 12

    2021  

    Abstract: Fasciolosis is a crucial helminthes disease caused by two trematodes of the genus Fasciola: Fasciola hepatica (temperate liver fluke) and Fasciolagigantica (tropical liver fluke). A cross-sectional study was conducted on cattle and sheep in ... ...

    Abstract Fasciolosis is a crucial helminthes disease caused by two trematodes of the genus Fasciola: Fasciola hepatica (temperate liver fluke) and Fasciolagigantica (tropical liver fluke). A cross-sectional study was conducted on cattle and sheep in aslaughterhouse todetect animals infected with Fasciolosis. Liver samples were collected from infected animals and transferred to the laboratory for histopathological and immunohistochemical examinations. Microscopically, the liver sections were showed extensive fibrous connective tissue surrounding the central vein and portal area with extensive thickening of bile ducts wall and fibrosis. Marked infiltration of inflammatory cells wasalso seen.
    Keywords Fasciola hepatica ; animal research ; bile ; cattle ; cross-sectional studies ; fascioliasis ; fibrosis ; histopathology ; immunohistochemistry ; liver ; liver flukes ; sheep ; Saudi Arabia
    Language English
    Dates of publication 2021-12
    Size p. 1484-1490.
    Publishing place Agricultural Research Communication Centre
    Document type Article
    ISSN 0976-0555
    DOI 10.18805/IJAR.B-1341
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article: Navigated Percutaneous Sacroiliac Screw Fixation in Unstable Pelvic Ring Fracture.

    Azhar, Shafiq / Syafiq, Syed / Arif, Nik Kamarul / Mohamed Khalil, Ahmad Faiz / Muhamad Ariffin, Mohd Hisam

    Cureus

    2022  Volume 14, Issue 10, Page(s) e29897

    Abstract: Since the late 1990s, navigation systems have been widely used in a variety of orthopaedic surgical procedures, with the majority of these procedures being complex arthroplasty surgeries and the correction of spinal abnormalities. Navigation systems are, ...

    Abstract Since the late 1990s, navigation systems have been widely used in a variety of orthopaedic surgical procedures, with the majority of these procedures being complex arthroplasty surgeries and the correction of spinal abnormalities. Navigation systems are, however, infrequently used in trauma cases, especially in unstable pelvic ring fractures. The conventional method of percutaneous sacroiliac screw fixation typically used fluoroscopic image intensifiers to fix unstable pelvic ring fractures. We will examine how navigation systems can be used in trauma situations, particularly those involving unstable posterior pelvic ring fractures and focus on the advantages and disadvantages that we experienced during management.
    Language English
    Publishing date 2022-10-04
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.29897
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: A Self-Localization Algorithm for Mobile Targets in Indoor Wireless Sensor Networks Using Wake-Up Media Access Control Protocol.

    Souissi, Rihab / Sahnoun, Salwa / Baazaoui, Mohamed Khalil / Fromm, Robert / Fakhfakh, Ahmed / Derbel, Faouzi

    Sensors (Basel, Switzerland)

    2024  Volume 24, Issue 3

    Abstract: Indoor localization of a mobile target represents a prominent application within wireless sensor network (WSN), showcasing significant values and scientific interest. Interference, obstacles, and energy consumption are critical challenges for indoor ... ...

    Abstract Indoor localization of a mobile target represents a prominent application within wireless sensor network (WSN), showcasing significant values and scientific interest. Interference, obstacles, and energy consumption are critical challenges for indoor applications and battery replacements. A proposed tracking system deals with several factors such as latency, energy consumption, and accuracy presenting an innovative solution for the mobile localization application. In this paper, a novel algorithm introduces a self-localization algorithm for mobile targets using the wake-up media access control (MAC) protocol. The developed tracking application is based on the trilateration technique with received signal strength indication (RSSI) measurements. Simulations are implemented in the objective modular network testbed in C++ (OMNeT++) discrete event simulator using the C++ programming language, and the RSSI values introduced are based on real indoor measurements. In addition, a determination approach for finding the optimal parameters of RSSI is assigned to implement for the simulation parameters. Simulation results show a significant reduction in power consumption and exceptional accuracy, with an average error of 1.91 m in 90% of cases. This method allows the optimization of overall energy consumption, which consumes only 2.69% during the localization of 100 different positions.
    Language English
    Publishing date 2024-01-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s24030802
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: Late Pleistocene Boulaaba travertine and calcareous tufa, Kasserine, Central Tunisia: Implications for North African spring-fed Ca-carbonates

    Zidi, Mohamed Khalil / Ben Ahmed, Walid / Henchiri, Mohsen

    Quaternary international. 2022 Sept. 07,

    2022  

    Abstract: Late Pleistocene (≈21000 BP) travertine and calcareous tufa deposits have been recognized in the region of Boulaaba, Kasserine in Central Tunisia with a variety of morphological aspects and depositional facies. Morphological aspects of these deposits ... ...

    Abstract Late Pleistocene (≈21000 BP) travertine and calcareous tufa deposits have been recognized in the region of Boulaaba, Kasserine in Central Tunisia with a variety of morphological aspects and depositional facies. Morphological aspects of these deposits consist of two elongated continental Ca-carbonate masses defined as fissure-ridges built-up around old fissure networks. Distinction between travertine and tufa lithofacies, based on textural, compositional and topographic settings regarding the entire carbonate masses, have led for travertine to 5 lithofacies: (1) banded travertine fissure infill, (2) bacterial shrubs, (3) stromatolitic laminae, (4) pisoids and (5) speleothem-like travertine growth habits. Tufa is composed of autochtonous tufa lithofacies with (1) phytoherme framestone tufa, (2) calcified insect larval constructions, and clastic alllochtonous tufa lithofacies with (1) matrix-supported microdetrital tufa and (2) grain-supported macrodetrital phytoclast tufa. Both lithofacies show variable diagenetic evolutions with an overall lithification. These deposits are concentrated along the Foussana trough-related normal faults and fractures that belong to the extensional regime of the major strike slip fault of Kasserine that enhanced and facilitated fluid upwelling along with movements of faults which damage and fracture the rocks and increase the overall permeability. During this phase (Late Pleistocene), the deposition of Boulaaba travertine and tufa has implied some paleo-hydroclimatic conditions marked in most North African travertine and tufa depositing sites by (1) a higher water table with abundant effective rainfall on the recharge areas, (2) dense plant cover and soils giving acidic water infiltrations, (3) karstic dissolution of Cretaceous limestones (especially the limestone aquifers of Bireno and Abiod), and (4) a strong water mineralization of the groundwater.
    Keywords Cretaceous period ; Pleistocene epoch ; aquifers ; carbonates ; groundwater ; insects ; larvae ; limestone ; mineralization ; permeability ; rain ; springs (water) ; topography ; water table ; Tunisia
    Language English
    Dates of publication 2022-0907
    Publishing place Elsevier Ltd
    Document type Article
    Note Pre-press version
    ISSN 1040-6182
    DOI 10.1016/j.quaint.2022.09.003
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  7. Article ; Online: Modeling of Packet Error Rate Distribution Based on Received Signal Strength Indications in OMNeT++ for Wake-Up Receivers.

    Baazaoui, Mohamed Khalil / Ketata, Ilef / Fakhfakh, Ahmed / Derbel, Faouzi

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 5

    Abstract: Wireless sensor network (WSN) with energy-saving capabilities have drawn considerable attention in recent years, as they are the key for long-term monitoring and embedded applications. To improve the power efficiency of wireless sensor nodes, a wake-up ... ...

    Abstract Wireless sensor network (WSN) with energy-saving capabilities have drawn considerable attention in recent years, as they are the key for long-term monitoring and embedded applications. To improve the power efficiency of wireless sensor nodes, a wake-up technology was introduced in the research community. Such a device reduces the system's energy consumption without affecting the latency. Thereby, the introduction of wake-up receiver (WuRx)-based technology has grown in several sectors. The use of WuRx in a real environment without consideration of physical environmental conditions, such as the reflection, refraction, and diffraction caused by different materials, that affect the reliability of the whole network. Indeed, the simulation of different protocols and scenarios under such circumstances is a success key for a reliable WSN. Simulating different scenarios is required to evaluate the proposed architecture before its deployment in a real-world environment. The contribution of this study emerges in the modeling of different link quality metrics, both hardware and software metrics that will be integrated into an objective modular network testbed in C++ (OMNeT++) discrete event simulator afterward are discussed, with the received signal strength indicator (RSSI) for the hardware metric case and the packet error rate (PER) for the software metric study case using WuRx based on a wake-up matcher and SPIRIT1 transceiver. The different behaviors of the two chips are modeled using machine learning (ML) regression to define parameters such as sensitivity and transition interval for the PER for both radio modules. The generated module was able to detect the variation in the PER distribution as a response in the real experiment output by implementing different analytical functions in the simulator.
    Language English
    Publishing date 2023-02-21
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23052394
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Endoscopic Assisted Caldwell-Luc Approach for Total Excision of an Extensive Aneurysmal Bony Cyst of the Maxillary Sinus.

    Elghobashy, Mohamed Khalil / Askoura, Anas Mohamed / Mahmoud, Mohammad Salah / Ashour, Manar Maamoun

    Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India

    2023  Volume 75, Issue Suppl 1, Page(s) 901–905

    Abstract: Aneurysmal bone cysts (ABCs) are uncommon lesions in head and neck area that could be primary or secondary in origin. The main problem with the traditional curettage and debridement is the high rates of recurrence, and cosmetic disfigurement with the ... ...

    Abstract Aneurysmal bone cysts (ABCs) are uncommon lesions in head and neck area that could be primary or secondary in origin. The main problem with the traditional curettage and debridement is the high rates of recurrence, and cosmetic disfigurement with the open approach. In this article, we describe the use of a combined endoscopic sinus surgery and endoscopic assisted Caldwell approach to achieve a complete surgical excision of left maxillary sinus ABC extending to the left infratemporal fossa, and to avoid facial disfigurement in a 13-year-old female patient presented to our hospital with diplopia, facial pain, and headache. The patient had uneventful post-operative recovery period with resolution of the presenting symptoms with no complications. Hence, we recommend this combined endoscopic surgical approach in such cases.
    Language English
    Publishing date 2023-01-29
    Publishing country India
    Document type Journal Article
    ZDB-ID 1471137-0
    ISSN 0973-7707 ; 2231-3796 ; 0019-5421
    ISSN (online) 0973-7707
    ISSN 2231-3796 ; 0019-5421
    DOI 10.1007/s12070-022-03435-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Upper lid crease approach for margin rotation in trachomatous cicatricial entropion without external sutures

    Mohamed Elsayed / Ahmed H. Aldghaimy / Osama A. El Soghair / Mayan Mohamed Khalil

    SVU - International Journal of Medical Sciences, Vol 6, Iss 1, Pp 571-

    2023  Volume 577

    Abstract: Background: Trichiasis is frequently caused by upper eyelid cicatricial entropion that results in scarring of the tarsus and an inward rotation of the lid margin. Objectives: The aim of the present study is to describe the use of lid crease incision for ... ...

    Abstract Background: Trichiasis is frequently caused by upper eyelid cicatricial entropion that results in scarring of the tarsus and an inward rotation of the lid margin. Objectives: The aim of the present study is to describe the use of lid crease incision for upper eyelid margin rotation in cicatricial entropion combining internal traction on the anterior lamella , tarsotomy , and tarsal overlap without external sutures. Patients and methods: This is a prospective consecutive interventional analytical study that included 40 eyes of 20 patients with age ranging from 40 to 80 years with trachomatous upper eyelid entropion presenting to the outpatient clinic of “Qena ” University Hospital , Group patients were randomly selected according to the inclusion criteria to undergo the transcautenous margin rotation operation at Qena University Hospital &the surgery was explained to the patients . The study was approved by the Scientific and Ethical Committee at Faculty of Medicine ,South Valley University Results: The mean patients' age for was (56.0 ± 18.27) and a range of (40.0- 76.0) years , Among the 20 patients recruited, 9 (45%) were males and 11 (55%) were females , In our study, 20% of eyes among the TMR group underwent entropion correction and blepharoplasty for dermatochalasis in the same sitting. Out of 40 eyes in the study, 70% developed "grade II" and 30% developed "grade I" post operative lid margin position., Trichiasis recurrence rate was 10% in the studied group Recurrence was seen in four eyelids of four patients despite adequate post operative lid margin position. Conclusion: Upper eyelid cicatricial trachomatous entropion can be effectively managed utilizing the TMR , with no significant incidence in entropion or trichiasis recurrence
    Keywords upper lid crease ; marginal rotation ; upper eyelid cicatricial entropion ; internal traction on ant lamella ; tarsotomy ; tarsal overlap without external sutures ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher South Valley University, Faculty of Medicine
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  10. Article ; Online: Feed Autonomy of a Few Dairy Cattle Farms in the Mitidja Plain (Algeria)

    Mohamed Khalil GHOZLANE / Said BOUKHECHEM / Mohamed BOUAMRA

    Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Veterinary Medicine, Vol 78, Iss 1, Pp 82-

    2021  Volume 88

    Abstract: Feed autonomy of 15 dairy cattle farms was assessed during the 2019-2020 agricultural campaign. This autonomy is declined according to the food nature (fodder and concentrate) and their composition (dry matter, energy and protein). Autonomy is on average ...

    Abstract Feed autonomy of 15 dairy cattle farms was assessed during the 2019-2020 agricultural campaign. This autonomy is declined according to the food nature (fodder and concentrate) and their composition (dry matter, energy and protein). Autonomy is on average of 74.79% for dry matter, 75.10% for energy and 76.36% for protein. Fodder autonomy is on average of 93.58%, whereas for concentrate, the farms are 100% dependent on the external provision of feed. Overall, the farms produce fodder but in insufficient quantity, they therefore resort to the purchase of hay bales. This is explained by the weakness of the fodder sole and the high consumption of concentrate.
    Keywords concentrate ; dry matter ; energy ; fodder ; feed self-sufficiency ; protein ; Veterinary medicine ; SF600-1100
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher AcademicPres
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top