105 research outputs found

    Traumatic neuroma after torticollis surgery: a rare occurrence

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    We report a 15 years old girl who admitted to our hospital with signs of recurrent torticollis after two failed operations and consistent pain at the side of surgery. The past operations were performed at 1 and 6 years of age and she has been suffering pain from previous incisions with neck movements. At physical examination, the sternocleidomastoid (SCM) muscle behaved like a fibrous band, restricting the neck movements and resulting in pain. The operation was indicated for the fibrotic SCM. At operation two separate incisions were performed on each end of the SCM to remove all of the fibrotic muscle. The histopathological examination demonstrated a traumatic neuroma which respectively correlates with the pain symptoms. The patient discharged on the second postoperative day and physiotherapy was started. The patient is symptom free one year after the surgery. This case demonstrates a rare occurrence of traumatic neuroma after torticollis surgery, which can manifest with pain.Keywords: neuroma, torticollis, traum

    ANALYZING THE RETRIEVAL ACCURACY OF OPTICALLY ACTIVE WATER COMPONENTS FROM SATELLITE DATA UNDER VARYING IMAGE RESOLUTIONS

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    Water quality monitoring has a key role in maintaining a sustainable ecosystem and environmental health. To ensure consistent monitoring, remote sensing provides regular data acquisition with varying spatial resolutions. However, more accurate, and effective solutions can be achieved by integrating remote sensing data with in-situ measurements. This study investigates the integration of in-situ measurements with satellite data, which have different spectral and spatial resolutions, using linear and exponential regression models for four optically active components in the Gulf of Izmit. In this context, Sentinel-2 (S2) and PlanetScope SuperDove (PS) multispectral images, which were acquired on the same date, were used for the comparative analysis of the accurate mapping of chlorophyll-a (Chl-a), turbidity, Secchi disk depth (SDD) and total suspended matter (TSM) water quality parameters combined with simultaneously collected in-situ measurements. The models were evaluated using validation data, along with visual comparison, to assess their accuracy. The results indicate that, overall, exponential models provide more accurate results than linear models, except for the SDD parameter. Furthermore, models created with S2 data demonstrate better performance in retrieving water quality parameters for Chl-a, turbidity, and TSM, with R2 values of 0.71, 0.84, and 0.91, respectively. The linear model created with PS data stands out in the accurately mapping of SDD parameter. Nevertheless, the spatial distribution of these parameters using both satellite dataset exhibits a similar pattern throughout the gulf, which is under threat from significant terrestrial pollution sources, particularly in the eastern part

    Proton detected solid-state NMR of membrane proteins at 28 Tesla (1.2 GHz) and 100 kHz magic-angle spinning

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    The available magnetic field strength for high resolution NMR in persistent superconducting magnets has recently improved from 23.5 to 28 Tesla, increasing the proton resonance frequency from 1 to 1.2 GHz. For magic-angle spinning (MAS) NMR, this is expected to improve resolution, provided the sample preparation results in homogeneous broadening. We compare two-dimensional (2D) proton detected MAS NMR spectra of four membrane proteins at 950 and 1200 MHz. We find a consistent improvement in resolution that scales superlinearly with the increase in magnetic field for three of the four examples. In 3D and 4D spectra, which are now routinely acquired, this improvement indicates the ability to resolve at least 2 and 2.5 times as many signals, respectively

    Printability, microstructure, and flow dynamics of phase-separated edible 3D inks

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    Personalizing the nutrition and sensorial attributes of 3D printed foods primarily requires various multiscale properties to be individually tailored. Herein, multiscale inks are produced by segregative phase separation, a candidate for further 3D inks texture control, of gellan gum (GG), and whey protein isolate (WPI). The inks microstructure, rheological properties, flow dynamics, their impact on printability, and properties-variables interactions are analyzed using experimental design and clustering. The gels are a GG matrix structured with WPI beads or fibers ranging from 100??m in diameter. A straightforward, six-step printability test determines that high-quality prints require increasing viscosity, which is obtained by reducing the size and length of the WPI beads. Also, flow dynamics and rheology models predict the shear stress and extrusion force, according to the print settings and food-inks fluid properties. The phase-separated inks enable printing at high speed (>25/50?mm/s) upon low extrusion forces (<50?N) and low shear stresses (<500?Pa), according to the calculations and model validation. These printability evaluation methodologies and fabrication of phase-separated inks are particularly interesting for 3D food printing, bioprinting, or biomaterials applications.Nanotechnology-based functional solutions project, funded by ERDF and CCDR-N, under the call Norte2020 (Ref. NORTE-01-0145-FEDER-000019) and Enhance Microalgae (High added-value industrial opportunities for microalgae in the Atlantic Area), funded by ERDF, under the Call Interreg Atlantic Area 2014–2020 (Ref. EAPA_338/2016)info:eu-repo/semantics/publishedVersio

    SILVER BINDING NUCLEOLAR ORGANIZER REGIONS IN ADRENOCORTICAL NEOPLASIA

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    The possible contribution of the silver colloid technique for staining nucleolar organizer regions in the distinction between benign and malignant adrenocortical neoplasms was investigated. Nine cases of adenoma, eight cases of carcinoma, nine cases of hyperplasia and four normal adrenal cortex specimens were examined. The mean silver binding nucleolar organizer region (Ag-NOR) value in adenoma was 4.29, and in carcinoma 7.16 (P 3 cm had significantly higher Ag-NOR counts than smaller adenomas. For normal cortex, the mean Ag-NOR value was 2.05 and in hyperplasia, 3.62. The results indicate that the Ag-NOR technique can help in differential diagnosis between benign and malignant adrenocortical lesions and thus may have a prognostic value

    Proteolysis in Golot cheese

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    In this research, the degree of proteolysis and correlations among the casein fractions, pH, soluble nitrogen, and ripening index in Golot cheese were investigated. The range and mean values of as-, b-, and g-caseins, pH, and ripening index were found to be 56.3–66.4, 61.9%; 12.2–26.0, 21.9%; 6.5–30.6, 16.2%; 4.8–6.5, 5.6, and 7.9–70.0, 27.9%, respectively. There was a highly significant correlation between casein fractions (as-, b-, and g-caseins) and chemical properties (pH, soluble nitrogen, and ripening index). A very broad range of b-casein, g-casein, pH, and ripening index values indicated the lack of standardization of manufacturing steps and the ripening conditions of Golot cheese

    Effects of some nonsteroidal anti-inflammatory drugs on articular cartilage of rats in an experimental model of osteoarthritis

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    We evaluate the chondrotoxic effects of some nonsteroidal antiinflammatory drugs (NSAIDs) on articular cartilage in an experimental model of osteoarthritis (OA). Each of 30 Sprague-Dawley rats weighing 0.250 kg and 12 weeks old received weekly injections of sodium iodoacetate (1 mg/0.1 mi NaCl) in the right knees for 8 weeks to induce an experimental model of OA. The left knees served as controls. Four groups were formed of ten rats each. The control group received no medicine. In the other three groups, tiaprofenic acid, diclofenac, and indomethacin were given orally for 12 weeks. At the end of the 20th week, the complete groups were sacrificed and histologic evaluation performed. In the right: knees of the control group, specific morphologic changes for OA were observed. Of the three NSAIDs tested, indomethacin was found to have deleterious effects on articular cartilage of both left and right knees. Diclofenac caused a statistically significant increase in the severity of most of the osteoarthritic parameters that were examined in the right knees, whereas tiaprofenic acid was observed to have some beneficial influences on the articular cartilage of right knees, Both diclofenac and tiaprofenic acid displayed the same deleterious effects on articular cartilage of left knees. We conclude that, in the prescription of NSAIDs for OA, it would be appropriate to choose a drug with a protective effect on chondrocytes and articular cartilage

    Comparison of different bladder autoaugmentation techniques in a rabbit model

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    Objective To compare the urodynamic, radiological and histopathological findings of a bladder autoaugmentation method combined with different seromuscular enterocystoplasty (mucosectomized) techniques and the rectus abdominis muscle-flap (RAMF) technique, and thus devise a method that may eliminate the potential risks of bladder autoaugmentation
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