20 research outputs found
Laser Photocoagulation of Tongue Hemangioma: Case Report
This report describes two cases of tongue hemangioma and shows the effectiveness of photocoagulation with diode laser. A thirty-five year-old female patient with a tongue hemangioma measuring 20x30 mm was referred. The lesion had been present for 15 months and the patient reported a gradual enlargement with dental trauma. A forty-three year-old female patient had a tongue hemangioma measuring 21x25 mm. The lesion was located on the right lateral side of her tongue and had caused minor discomfort with dental trauma for the previous 8 months. Lesions were surgically photocoagulated with a diode laser applied through a glass microscope slide. The procedures lasted 15 minutes and the patients were discharged on the first postoperative day. Minimal swelling and crusty scarring occured during the first postoperative week. After one month, the operative sites healed without any residual scarring. Patient satisfaction was achieved with minimal morbidity. Lower morbidity, minimal patient discomfort and satisfactory aesthetic results are favorable for the patients. Laser photocoagulation is promising as the treatment of choice for such lesions
Prevalence of Non Alcoholic Fatty Liver Disease in patients with Parkinson Disease
INTRODUCTION[|]Non alcoholic fatty liver disease (NAFLD) has presented as the most common cause of chronic liver disease in the Western world. Parkinson disease (PD) is the second most common non-demyelinizan neurologic disase and its incidence is steadily increasing in the world. Our study aims to analyze the prevalence of ultrasonography-proven NAFLD among the PD patients. [¤]METHODS[|]A retrospective chart review was performed to identify PD patients who had at least two visits in the Liver Clinic from January 2017 to May 2018. Thus, 124 consecutive patients (the mean age 74,2+-11,9years; 65 female) with PD was longitudinally screened for NAFLD which were diagnosed according to ultrasonographic criteria. Control subjects (65 subjects, mean age was 68+-3.4 years; 35 female) were selected from age-matched eldely subjects. Demographic and laboratory data, concurrent statin use and results of hepatobiliary ultrasonography were collected. Patients with history of chronic liver disase, liver transplant, past alcohol use or not enough data to stage NAFLD were excluded. Data analyzed using Pearson's chi-squared test with the Stata software.[¤]RESULTS[|]Nonalcoholic fatty liver disease prevalence was significantly lower in the PD group than in the age -matched control group (21% vs. 36%, P<0.05). In multiple logistic regression analyses using baseline factors, statin use (P=0.04) and elevated Hb A 1 C (P<0.001), baseline fasting glucose below than 100 mg/dL (P=0.03), and elevated ALT levels (P<0.001) were independently associated with NAFLD.[¤]DISCUSSION AND CONCLUSION[|]While additional studies in large populations are needed to investigate the correlation between PD and NAFLD, further exploration of PD -related metabolic liver disease clinically appears warranted.[¤
Distribution of dissolved forms of iron and manganese in the Black Sea
Dissolved forms of the redox-sensitive elements manganese (Mn-DISS) and iron (Fe(II) and Fe(III)) were measured in the oxic/anoxic transition zone, or suboxic zone, of the Black Sea. An offset was found between dissolved manganese and iron gradients at all stations. In the western cyclonic gyre of the Black Sea, the onset of dissolved Mn (> 0.1 mu M) was located at a density of about sigma(t) = 15.85, where the concentration of dissolved oxygen (DO) was less than 5 mu M. The onset of dissolved Fe(II) (> 0.025 mu M) was at sigma(t) = 15.90, just above the increases in hydrogen sulfide. These characteristic features were modified in the southern coastal waters by such physical processes as the rim current, formation of anticyclonic eddies, and injection of saline, oxygenated Marmara Sea waters from the Bosporus in the Bosporus Plume
Farklı Kökenli Doğal Kumların Betonda Alkali Silis Reaksiyonu Yönünden Değerlendirilmesi
Beton üretiminde yaygınca kullanılan doğal kumlar içerdikleri minerallerin türüne göre alkali-silis reaksiyonuna neden olabilirler. Bu çalışmanın amacı, farklı kökenli kumların alkali-silis reaktivitesini karşılaştırmaktır. Örnekler; Karadeniz Kıyısı-Akpınar, Trakya-Çorlu, Muratlı ve Sinekli, İstanbul-Ömerli ve Bursa-Mustafakemalpaşa bölgelerinde bulunan yedi farklı kum ocağından alınmıştır. Kumların alkali-silis reaktiviteleri petrografik, mineralojik, kimyasal incelemeler ve hızlandırılmış harç çubuğu deneyleri ile araştırılmıştır. Yapılan değerlendirmeler sonucunda çört, kalsedon vb. aktif silis mineralleri ile metamorfik kökenli kaya parçaları içeren kumların alkali-silis reaksiyonu açısından tehlikeli olabileceği saptanmıştır
The Effect of Feldpar, Mica and Clay Minerals on Compressive Strength of Mortar
The mineralogical composition of fine aggregates plays an important role when used in mortar production because they generally effect the strength and durability of mortar structures. In this work, some mechanical aspects are highlighted concerning the use of fine aggregates containing Na-feldspar, K-feldspar, mica and some clay minerals such as kaolinite, illite and montmorillonite. With in this scope, total of there series of mortar mixtures were made with different water/cement ratio. First mixture was referance mortar prepared by using standard sand. In second mixtures, standard sand was replaced with 20 % Na-feldspar, K-feldspar and mica. Third mixtures contained 4 % of kaolinite, illite and montmorillonite as partial replacement of standard sand. According to the results obtained, addition of mica and clay minerals such as illite and montmorillonite with different percentages in standard sand causes to increase water demand in mortar and therefore reduce the strength of mortar