614 research outputs found

    Prevalence of Dermatophytes Skin Infections in Babylon Province

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    Background: Dermatophytosis is an infection produced by dermatophytic fungi in the keratinized tissues. Dermatophytes are fungi that infect skin, hair and nails of both humans and animals, they are the primary causative agent of dermatophytosis. Objective :   Detecting the types and the frequencies of the dermatophytes infections in Babylon Province. Methods:   In this study, 254 specimens  of dermatophytic patients are collected in Babylon province. Collection of Specimens include: skin Scrapings, hair fragments and nail clippings  . The specimens were diagnosed by direct microscopic examination and culture. Results : 213 (83.86%) specimens of dermatophytes infection were positive in direct microscopic examination and culture , and used in phenotypic diagnosis .Tinea  corporis was the predominant infection in 106 (41.73%)   patients, Ttichophyton  rubrum showed the highest frequency of dermatophytes isolates 36 (16.90%) , Ttichophyton mentagrophytes 31 (14.55%)  and Microsporum canis 30 (14.08%). The invasion of  hair was ectothrix type, forming masses of arthroconidia on the outside of the hair shaft  in 57 (78.08%) specimens, while the invasion of hair was endothrix type, and abundant sporulation inside the hair shaft causes breakage of the hair near the surface of the scalp in 16 (21.92%) specimens. Conclusion: Tinea corporis was the predominant infection. T. rubrum , T. mentagrophytes and M.  canis showed the highest frequency of dermatophytes isolates. Positive direct microscopic  examination and culture isolates could be  used in phenotypic diagnosis. Key words : Dermatophytosis, T. rubrum , T. mentagrophytes and M.  cani

    Clinical and Histopathological Study on Dermatophytes Infections Caused by Trichophyton mentagrophytes Using Animal Model

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    Background: dermatophytes are parasitic fungi that infect skin, hair and nails of both humans and animals, they are the primary causative agent of dermatophytosis, a major public health concern in some geographic regions. Objective : To study the pathogenesis of dermatophytes infections and the antifungal activity of essential oil extract of  Lavandula  intermedia. Methods: Zoophilic strain of Ttichophyton mentagrophytes isolated from  dermatophytic patients infected with tinea corporis inoculated in the back of the rabbits using the abrasion (non-occlusion) method. Results: Twenty animals were categorized into two groups as follows: control groups involved 10 animals, 5 animals were subjected to  abrasion only, and other 5 animals were subjected to infection (after abrasion).While the other ten animals represented by study groups which involved 5 animals were exposed to infection and treated in 10th day of infection with 1% terbinafine and the other 5 animals  were treated with 10% lavender essential oil extract(it gave 5%and 10% MIC and MFC respectively). The treated animals showed healing in 12-14 day, while not treated animals showed spontaneous healing in 35-40 day. Conclusion: Rabbit model was found to be useful in the primary screening and evaluation of the anti-dermatophytic efficacy of topical formulations of antifungal agents. T. mentagrophytes produced infection in rabbit's skin in 2X106 cells /ml. Lavender essential oil could be used as alternative antifungal agents in treatment of dermatophytosis in chronic diseases ,immunocompromised and immunosuppressed drugs therapy patients. Key words : Dermatophytosis, T. mentagrophytes animal mode

    LE COEFFICIENT D’OCCUPATION DU SOL COS ET LA PROMOTION DES TECHNIQUES MODERNES DE LA GESTION URBAINE -CAS DE LA VILLE D’ALGER

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    Les systĂšmes traditionnels de contrĂŽle de la densitĂ©, lors de l’établissement du Plan Directeur d’AmĂ©nagement et d’Urbanisme(PDAU) et le Plan d’Occupation du Sols (POS) dont la responsabilitĂ© communale s’exerce, imposent des innovations rapideset fondamentales des techniques modernes de gestion urbaine.Partie intĂ©grante du POS, le coefficient d’occupation du sol (COS) reprĂ©sente une rĂšgle axiale pour les nouveaux outilsd’urbanisme, il est donc l’élĂ©ment de base du rĂšglement d’urbanisme.L’objet de ce travail est la mise au point d’une mĂ©thode thĂ©orique et analytique du COS, qui met en Ă©vidence ses facteursdĂ©terminants et sa relation avec les espaces fonctionnels de l’habitat. Ce travail s’intĂ©resse surtout Ă  l’équilibre entre larĂ©glementation concernant le coefficient d’occupation du sol et son application. C’est une phase importante pour la poursuitedes empreintes et des effets du COS dans la rĂ©alitĂ©,Le travail se termine par un modĂšle d’intĂ©gration informatisĂ©e qui met en reliefs ces relations et leurs interactions.Mots clĂ©s : AlgĂ©rie – Alger–Densité–Coefficient d’occupation des sols COS-Droit de l’urbanisme-Techniques de gestionurbaine-Programme COS

    Effect of treated wastewater irrigation on physiological and agronomic properties of beans Vicia faba

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    The current study investigated the effect of two doses (50%, and 100 %) of treated wastewater (TWW)on biometric and physiologic parameters of Vicia faba beansafter 40 days of exposure. Our data showed a decrease in shoots and roots length and weight in plants amended with TWW. Moreover, a significant decrease in Chlorophyll ‘a\u27, ‘b\u27 and carotene content was observedin plants irrigated with 100% of TWW. These findings provided new insights on TWW reuse which can cause different types of stress as it may affect the development of cultivated crops

    Operational performance of a PV generator feeding DC shunt and induction motors with MPPT

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    This paper presented the transient and operational behavior of a parallel Combination of DC Shunt Motor and IM fed by a photovoltaic generator at different solar irradiance levels. The maximum power point of current/voltage (I/V) characteristic of the PV generator was achieved for different solar intensities, by utilizing an open circuit voltage method. The nonlinear operational behavior of (I/V) characteristics of the PV generator at various solar intensities and the magnetization curve of the ferromagnetic material of the DC shunt motor were both modeled by high order polynomial mathematical expressions. The study investigated the response of the system at different solar irradiance levels and changing the torque loads for both motors and then following step change in solar intensity levels with fixed loading torques for both motors. All numerical simulations were executed using MATLAB software

    Vibrio parahaemolyticus control in mussels by a Halobacteriovorax isolated from the Adriatic sea, Italy

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    This study evaluated the application of a Halobacteriovorax isolated from water of the Adriatic Sea (Italy) in controlling V. parahaemolyticus in mussels (Mytilus galloprovincialis). Two 72 h laboratory-scale V. parahaemolyticus decontamination experiments of mussels were performed. The test microcosm of experiment 1 was prepared using predator/prey free mussels experimentally contaminated with Halobacteriovorax/V. parahaemolyticus at a ratio of 103 PFU/105 CFU per ml, while that of experiment 2 using mussels naturally harbouring Halobacteriovorax that were experimentally contaminated with 105 CFU per ml of V. parahaemolyticus. For experiment 1, was also tested a control microcosm only contaminated with 105 CFU per ml of V. parahaemolyticus. Double layer agar plating and pour plate techniques were used to enumerate Halobacteriovorax and V. parahaemolyticus, respectively. 16 S rRNA analysis was used to identify Halobacteriovorax. For both experiments in the test microcosm the concentration of prey remained at the same level as that experimentally added, i.e. 5 log for the entire analysis period. In experiment 1, V. parahaemolyticus counts in mussels were significantly lower in the test microcosm than the control with the maximum difference of 2.2 log at 24 h. Results demonstrate that Halobacteriovorax can modulate V. parahaemolyticus level in the mussels. The public impact of V. parahaemolyticus in bivalves is relevant and current decontamination processes are not always effective. Halobacteriovorax is a suitable candidate in the development of a biological approach to the purification of V. parahaemolyticus in mussels

    Aspergillus section fumigati pneumonia and oxalate nephrosis in a foal

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    Equine pulmonary aspergillosis is a rare deep mycosis often due to the hematogenous spread of hyphae after gastrointestinal tract disease. We describe herein the main clinic-pathological findings observed in a foal, which spontaneously died after showing diarrhea and respiratory distress. Necropsy and histopathological investigations allowed to diagnose pulmonary aspergillosis, which likely developed after necrotic typhlitis-colitis. Biomolecular studies identified Aspergillus section Fumigati strain as the causative agent. Notably, severe oxalate nephrosis was concurrently observed. Occasionally, oxalate nephropathy can be a sequela of pulmonary aspergillosis in humans. The present case report suggests that the renal precipitation of oxalates can occur also in horses affected by pulmonary aspergillosis and could likely contribute to the fatal outcome of the disease

    Training convolutional neural networks to score pneumonia in slaughtered pigs

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    The slaughterhouse can act as a valid checkpoint to estimate the prevalence and the economic impact of diseases in farm animals. At present, scoring lesions is a challenging and time‐consuming activity, which is carried out by veterinarians serving the slaughter chain. Over recent years, artificial intelligence(AI) has gained traction in many fields of research, including livestock production. In particular, AI‐based methods appear able to solve highly repetitive tasks and to consistently analyze large amounts of data, such as those collected by veterinarians during postmortem inspection in high‐throughput slaughterhouses. The present study aims to develop an AI‐based method capable of recognizing and quantifying enzootic pneumonia‐like lesions on digital images captured from slaughtered pigs under routine abattoir conditions. Overall, the data indicate that the AI‐based method proposed herein could properly identify and score enzootic pneumonia‐like lesions without interfering with the slaughter chain routine. According to European legislation, the application of such a method avoids the handling of carcasses and organs, decreasing the risk of microbial contamination, and could provide further alternatives in the field of food hygiene
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