Fistule carotido-caverneuse post-traumatique

Introduction : La fistule carotido-caverneuse (FCC) est une complication rare, mais grave des traumatismes craniofaciaux pouvant engager le pronostic fonctionnel oculaire et le pronostic vital. elle réalise une communication anormale entre le système artériel carotidien et le sinus caverneux.Buts : Rapporter un cas de FCC directe post-traumatique et étudier les aspects cliniques, diagnostiques et thérapeutiques de cette pathologie.Observation : Nous rapportons un cas de FCC apparue dans les suites d’un traumatisme craniofacial et survenue chez un homme de 25 ans ayant été victime d’un accident de la voie publique. Le diagnostic a été suspecté devant l’apparition, au 19ème jour d’hospitalisation, d’une exophtalmie unilatérale gauche pulsatile associée à un important chémosis et à une pupille aréflectique. Une artériographie cérébrale pratiquée 9 jours après la constatation de l’exophtalmie a objectivé une large FCC gauche. Une embolisation au moyen de deux ballonnets intravasculaires largables et de l’injection de colle biologique a été réalisée au même temps sans incidents permettant d’obtenir l’occlusion complète de la fistule. L’évolution a été marquée par la régression de l’exophtalmie et du chémosis et par l’amélioration partielle de l’acuité visuelle.Conclusion : Le traitement des FCC est urgent et est principalement basé sur la neuroradiologie interventionnelle. en effet, l’angiographie cérébrale constitue l’examen clé et possède un double intérêt diagnostique et thérapeutique.Mots clés : fistule carotido-caverneuse, traumatisme craniofacial, artériographie cérébrale, embolisation

Free-Hand Scanning and Imaging

Wideband synthetic aperture radar (SAR) imaging. A probe transmits a signal through its aperture incident to an object located in a medium of interest remotely from the probe. The probe receives through the aperture a plurality of nonuniformly sampled reflected signals from the object as the probe moves in a measurement plane located a predetermined distance from the object. A processor executes a SAR-based reconstruction algorithm to generate an image

Adenome parathyroidien intrathymique: a propos d’un cas

Introduction : Les adénomes parathyroïdiens posent le problème de leur diagnostic topographique. A partir d’un cas clinique d’adénome parathyroïdien intrathymique, les auteurs rappellent l’intérêt d’un bilan localisateur préopératoire. Observation : Il s'agit d’un homme âgé de 19 ans présentant une hyperparathyroïdie primitive. La scintigraphie à laSestamibi a montré une hyperfixation inhabituelle du radiotraceur au niveau du creux sus sternal, permettant d’évoquer le diagnostic d’un adénome parathyroïdien intrathymique. Il a été réalisé une adénectomie en utilisant une voie d’abord cervicale et l'évolution post-opératoire était favorable. Conclusion : La scintigraphie Sestamibi constitue l'examen de choix pour établir le diagnostic topographique des adénomes parathyroïdiens. Cet examen permet de limiter la voie d’abord chirurgicale et d’éviter les cervicotomies blanches.Mots-clés : Adénome parathyroïdien, thymus, scintigraphie

Perbandingan Penerapan Model Discovery Learning dan Problem Based Learning Terhadap Kemampuan Pemahaman Matematis Siswa

Tujuan penelitian ini untuk mengetahui perbedaan kemampuan pemahaman matematis antara penerapan model discovery learning dan penerapan model problem based learning. Jenis penelitian yang digunakan adalah kuasi eksperimen dengan non equivalent control group design. Adapun populasi yang diteliti yaitu semua siswa kelas VIII di MTs Madani Alauddin, Kabupaten Gowa. Pemilihan sampel menggunakan teknik simple random sampling. Instrumen yang digunakan adalah soal pretest dan posttest kemampuan pemahaman matematis. Teknik analisis data yang digunakan yaitu statistik deskriptif dan statistik inferensial. Hasil penelitian menunjukkan rata-rata kemampuan pemahaman matematis dengan penerapan model discovery learning adalah 63,97 dengan standar deviasi 12,783. Sedangkan rata-rata kemampuan pemahaman matematis dengan penerapan model problem based learning yaitu 72,31 dengan standar deviasi 16,175. Hasil analisis inferensial menunjukkan bahwa terdapat perbedaan kemampuan pemahaman matematis antara yang menerapkan discovery learning dan problem based learning dengan nilai sig. 0,014 < 0,05 yang berarti H0 ditolak. Dengan demikian, kemampuan pemahaman matematis siswa kelas VIII di MTs Madani Alauddin yang diajar dengan model problem based learning lebih tinggi dibandingkan dengan model discovery learning

Calcium Tartrate Tetrahydrate, Case Report of a Novel Human Kidney Stone

Background: Calcium tartrate tetrahydrate has been reported as the main mineral in urinary stones in rats that have significant tartrate in their diet, but in humans, there has been only one mention of calcium tartrate stones in the form of bladder stone, and that case was in Africa., Case Presentation: Patient is a 34-year-old Caucasian male who presented with typical symptoms of nephrolithiasis. CT abd/pelvis (renal stone protocol) revealed a 2 cm nonobstructing stone of the right renal pelvis. Patient underwent an uncomplicated right percutaneous nephrolithotomy and was noted to be stone free after surgery. Stone analysis was difficult with regard to determining composition, but was finally identified as calcium tartrate tetrahydrate., Conclusion: This was an unusual case, as this is the first recorded case of a calcium tartrate tetrahydrate outside of Africa. This type of stone had only been mainly described in rat models with dl-bitartrate in their diet. Our patient was an otherwise healthy, relatively muscular individual with no obvious source for this stone other than a vitamin and amino acid supplement that he takes regularly that contains l-carnitine (as tartrate) and choline (as bitartrate and citrate). The prevalence of this stone type is presently unknown, as stone analysis laboratories have not had the ability to recognize it. Although a connection between the supplement and stone formation is conjecture at this time, we believe this necessitates further investigation

Dynamic effective anisotropy: Asymptotics, simulations, and microwave experiments with dielectric fibers

International audienceWe investigate dynamic effective anisotropy in photonic crystals (PCs) through a combination of an effective medium theory, which is a high-frequency homogenization (HFH) method explicitly developed to operate for short waves, as well as through numerical simulations and microwave experiments. The HFH yields accurate predictions of the effective anisotropic properties of periodic structures when the wavelength is of comparable order to the pitch of the array; specifically, we investigate a square array of pitch 2 cm consisting of dielectric rods of radius 0.5 cm and refractive index n=6√ within an air matrix. This behaves as an effective medium, with strong artificial anisotropy, at a frequency corresponding to a flat band emerging from a Dirac-like point in transverse magnetic (TM) polarization. At this frequency, highly directive emission is predicted for an electric source placed inside this PC, and this artificial anisotropy can be shown to coincide with a change of character of the underlying effective equation from isotropic to unidirective, with coefficients of markedly different magnitudes appearing in the effective equation tensor. In transverse electric (TE) polarization, we note a second radical change of character of the underlying effective equation, this time from elliptic to hyperbolic, near a frequency at which a saddle point occurs in the corresponding dispersion curves. Delicate microwave experiments are performed in both polarizations for such a PC consisting of 80 rods, and we demonstrate that a directive emission in the form of a + (respectively, an X) is indeed seen experimentally at the predicted frequency 9.5 GHz in TM polarization (respectively, 5.9 GHz in TE polarization). These are clearly dynamic effects since in the quasistatic regime the PC just behaves as an isotropic medium

Analisis Zerumbone Dalam Zingiber Zerumbet Dan Aktivitas Penghambatannya Terhadap Bakteri Mycobacterium Tuberculosis: Analysis of Zerumbone in Zingiber Zerumbet and Inhibitory Activity Against Mycobacterium Tuberculosis

Zerumbone has been reported for their several biological activities. In our interest to this compound, we have identified and analyzed its content in Zingiber zerumbet, a medicinal plant from Indonesian traditional medicine and investigated its inhibitory activity against Mycobacterium tuberculosis, a known infection bacteria of tuberculosis. Analysis of zerumbone was performed with densitometry to leave, rhizome, flower, and stem of Z. zerumbet which was extracted with various solvent system and extraction methods to determine the best method to isolate zerumbone from Z. zerumbet. Result showed that the highest zerumbone was in rhizome while was not observed in other part. Analysis with various solvent and extraction methods showed the highest yield of zerumbone can be extracted by n-hexane (maceration) and reflux extraction method (methanol). Furthermore, inhibitory activity of zerumbone against M. tuberculosis was tested using Lowenstein Jensen medium by counting the number of M. tuberculosis colony growth in medium. Resulted inhibitory activity of zerumbone at all test concentration (0.5, 0.1, 0.05, 0.01, 0.005%) with the growth of 10, 12, 14, 15, and 50 colonies of M. tuberculosis was observed, respectively. This is indicate that zerumbone can be used as an alternative choice for treatment tuberculosis in the future

Renal cell carcinoma in children: Case report and literature review

Renal cell carcinoma is infrequent in children; consequently it is important to communicate its diagnosis and follow up. The behaviour of this type of tumor is better characterized in adults and in this setting the treatment of choice is surgical resection. However, the place of chemo- and radiotherapy has not been well defined. Here, we present a 9-year-old boy with renal cell carcinoma demonstrating only hematuria without any pathological physical examination findings. The mass was described by abdominal ultrasonography and computed tomography in the left kidney. After the left nephroureterectomy, the patient was given no adjuvant therapy

INFLUENCE OF NUTRITIONAL AND CLIMATIC CONDITIONS ON MYCELIAL GROWTH OF THREE OYSTER MUSHROOM STRAINS

The mycelial growth rate of three oyster mushroom strains namely Pleurotus erengii, P. ostreatus and P. florida was examined on six different agar media (malt extract, Potato dextrose, rose bengal, corn meal, czapek’s dox and waksman’s glucose agar media) to select the most suitable one. Effect of pH was also examined at different values (5.0, 5.5, 6.0, 6.5 and 7.0) on the selected medium. Results indicated that Malt extract agar medium was the most suitable one for mycelium growth of all the tested mushroom strains, being the highest (9 cm ) for P. erengii and P. ostreatus at pH 7 and 9 cm at pH 6 -6.5 for P. florida after 6 days of incubation. The mycelia growth of the tested oyster mushroom strains was also examined at different temperatures (15, 20, 25, 30 and 35ºC) and different levels of relative humidity (50, 65, 75, 85, 95 and 100 %) on malt extract agar medium. The highest mycelial growth rate was obtained at 25°C and relative humidity of 65% after 6 days of incubation for the three tested oyster mushrooms

Comparison of Perioperative Outcomes Between Holmium Laser Enucleation of the Prostate and Robot-Assisted Simple Prostatectomy

Objectives: To compare perioperative outcomes for patients undergoing holmium laser enucleation of the prostate (HoLEP) and robotic-assisted simple prostatectomy (RSP) for benign prostatic hypertrophy (BPH).Methods: Patient demographics and perioperative outcomes were compared between 600 patients undergoing HoLEP and 32 patients undergoing RSP at two separate academic institutions between 2008 and 2015.Results: Patients undergoing HoLEP and RSP had comparable ages (71 vs 71, p = 0.96) and baseline American Urological Association Symptom Scores (20 vs 24, p = 0.21). There was no difference in mean specimen weight (96 g vs 110 g, p = 0.15). Mean operative time was reduced in the HoLEP cohort (103 minutes vs 274 minutes, p < 0.001). Patients undergoing HoLEP had lesser decreases in hemoglobin, decreased transfusions rates, shorter hospital stays, and decreased mean duration of catheterization. There was no difference in the rate of complications Clavien grade 3 or greater (p = 0.33).Conclusions: HoLEP and RSP are both efficacious treatments for large gland BPH. In expert hands, HoLEP appears to have a favorable perioperative profile. Further studies are necessary to compare long-term efficacy, cost, and learning curve influences, especially as minimally invasive approaches become more widespread