123 research outputs found
KORONER ARTER HASTALIĞININ BELİRLEYİCISI OLARAK PENIL DOPPLER ULTRASONOGRAFİ İLE SAPTANAN KAVERNOZ ARTER STENOZU: OLGU SUNUMU
An association between Coronary Artery Disease (CAD) and Erectile Dysfunction (ED) has been described. We aimed to show that cavernous artery stenosis may be an important predictor of a silent but serious CAD. A 56-year-old man who had moderate ED was evaluated for risk factors. He had several vascular risk factors for ED and CAD including age, smoking, hypertension, hyperhomocysteinemia and hyperlipidemia. His penile colour Doppler ultrasonography revealed multiple stenotic area in the right cavernous artery. His treadmill exercise test showed significant changes. Then, coronary angiography was performed and it showed the patient had doublevessel CAD. Findings of atherosclerotic plaques in cavernosal arteries with penile Doppler ultrasonography may be address subclinical coronary artery stenosis in patients with ED. Koroner arter hastalığı ile erektil disfonksiyon arasındaki ilişki belirgindir. Bu yazıda kavernozal arter darlığının sessiz fakat ciddi koroner arter hastalığını gösterebileceğinin ortaya konulması amaçlandı. Orta şiddette erektil disfonksiyon yakınması olan 56 yaşındaki hasta risk faktörleri açısından değerlendirildi. Hastanın yaş, sigara, hipertansiyon, hiperhomosisteinemi ve hiperlipidemi olmak üzere çok sayıda vasküler risk faktörü vardı. Penil Doppler ultrasonografide sağ kavernozal arterde çok sayıda darlık saptandı. Treadmill egzersiz testinde belirgin değişiklikleri olan hastanın yapılan koroner anjiografisinde iki damarda stenoz saptandı. Erektil disfonksiyonlu hastalarda penil Doppler ultrasonografi ile kavernozal arterlerde saptanan aterosklerotik plaklar subklinik koroner arter hastalığı habercisi olabilir
DERİ ENDÜSTRİSİ ATIK SULARININ BAŞYAYLA (KARAMAN) YÖRESİ PEKMEZ TOPRAĞI KULLANILARAK ARITILABİLİRLİKLERİNİN İNCELENMESİ
Atık suların arıtılmasında alternatif arıtım yöntemleri her geçen gün artmaktadır. Yapılan çalışmalara ve pratikteki uygulamalarına bakıldığında ilginin uygulanması kolay, ekonomik ve yüksek verime sahip yöntemler üzerinde yoğunlaştığı görülmektedir. Çalışmalarımızda Başyayla yöresi pekmez toprağı olarak bilinen ve pekmez yapımında çöktürme amaçlı olarak kullanılan kalsit ağırlıklı işlem görmemiş toprak numunesi kullanılmıştır. Bu bağlamda yaptığımız çalışmada toprak numunesinin kimyasal yapısı incelenerek arıtmada kullanılabilirliği araştırılmıştır. Deneysel çalışmalarda bir deri endüstrisi atık sularından kompozit olarak alınan numunede, KOİ (Kimyasal Oksijen İhtiyacı), AKM (Askıda Katı Madde), krom (VI) ve toplam krom parametrelerinin giderimi üzerine çalışılmıştır. Atık su numunesinde 2000 mg/L dozda ve pH 6'da %80'in üzerinde verimler elde edilmiştir. Alternative wastewater treatment methods were developed in recent years. According to experimental and practical applications, scientist's interest is focus on easy applicable, economical and optimum efficiency methods. In our experiments raw soil sample known as Basyayla region grape molasses soil was used. In this content, we investigated chemical structure of soil sample and its usage in water treatment. This soil which constituted of mostly calcite was used for sedimentation for making grape molasses. Experimental studies were taken place on removal of COD (Chemical Oxygen Demand), SS (Suspended Solid), chromium (VI) and total chromium from composite sample of the tannery wastewater. About 80 percent removal efficiency was obtained for wastewater sample for 2000 mg/L dosage and pH 6
Evaluation of the Effect of Localization of Septal Deviation on the Success of Septoplasty using NOSE Scale
Objective:To measure the effect of localization of septal deviation on the success of septoplasty using the-Nose Obstruction Symptom Evaluation (NOSE) scale in patients undergoing septoplasty and endoscopic reduction of inferior turbinates.Methods:Patients who attended Oltu Goverment Hospital ENT clinic with nasal septal deviation between March 2011 and June 2012 were included in this study. Patients who had paranasal sinus problems other than concha hypertrophy and revision cases were excluded from this study. Septal deviation was classified according to the position of the internal nasal valve as anterior, posterior or anteroposterior. All patients were examined with nasal endoscopy before and after operation and received a preoperative paranasal tomography scan. The effect of septal deviation on quality of life was evaluated using the NOSE scale preoperatively and 6 months postoperatively. All patients had endoscopic septoplasty and inferior concha reduction under general anaesthesia.Results:Ninety-seven (40 female, 57 male) patients underwent endoscopic septoplasty and concha reduction between 2011 and 2012 in Oltu Government hospital. The mean age was 29.8 years. Anterior deviation was 45, posterior deviation was 33, and anteroposterior deviation was 19. Patients with anterior deviation had a mean NOSE scale of 78.2 preoperatively and 5.8 postoperatively. Patients with posterior deviation had a mean NOSE scale of 79.2 preoperatively and 15.4 postoperatively. Patients with anteroposterior deviation had a mean NOSE scale of 82.4 preoperatively and 22.5 postoperatively (p<0.01).Conclusion:Localization of septal deviation affected postoperative septoplasty satisfaction. Patients with anteroposterior deviation were the least satisfied and patients with anterior deviation were the most satisfied after septoplasty surgery
Robot-assisted Radical Cystectomy with Intracorporeal Urinary Diversion following Neoadjuvant Chemotherapy for Muscle-invasive Bladder Cancer: An Initial Experience
Objective: To investigate the outcomes of robot-assisted radical cystectomy, intracorporeal urinary diversion, and extended lymph node dissection in patients with muscle-invasive bladder cancer who underwent neoadjuvant chemotherapy.
Materials and Methods: A total of 14 patients underwent neoadjuvant chemotherapy for invasive bladder tumors, followed by robot-assisted radical cystectomy, extended lymph node dissection, and intracorporeal urinary diversion. Demographic, operative, and postoperative information of the patients was retrospectively evaluated. Gemcitabine plus cisplatin and cisplatin plus etoposide regimens were used as neoadjuvant treatments. Early and late-term complications were recorded.
Results: In the early postoperative period (0-30 days), Clavien-Dindo grade 2 complications occurred in 6 patients and grade 3 complications in 2 patients. In the late postoperative period (31-90 days), Clavien-Dindo grade 2 complications occurred in 1 patient and grade 3 complications in 1 patient. The mean follow-up period was 15.5±5.7 months.
Conclusion: Although the intracorporeal technique is more demanding in terms of learning and use, preoperative chemotherapy application should not be seen as a limitation in the application of this technique
Comparison of Different Extraction Methods on the Recovery Efficiencies of Valuable Components from Orange Peels
Supercritical-CO2 extraction, Soxhlet extraction, and ultrasound-assisted extraction methods were conducted in this study to recover valuable components, specifically phenolic antioxidant compounds, from orange peels. Basic operating parameters such as temperature and pressure, which affect the extraction efficiency of phenolic substances in orange peel with supercritical-CO2, were designed using the central composite design methodology. In the Soxhlet and ultrasound-assisted extraction methods, 2-hour extraction processes were carried out using ethanol at different concentrations (50%, 80% and 100%) as a solvent. Yield comparison was made by performing total phenolic content, antioxidant activity and total flavonoid content analyses in the extracts. The total phenolic content (TPC) in the extracts was determined to be 5034 mg GAE/L for supercritical-CO2 extraction at 61.5°C and 20 MPa. In comparison, Soxhlet extraction yielded a TPC of 1728 mg GAE/L, while the ultrasound-assisted extraction method resulted in a TPC of 4056 mg GAE/L. It was determined that the optimum operating parameters of supercritical-CO2 extraction were 60°C and 26.4 MPa in case all the responses were maximized. The best phenolic recovery was obtained at 100% ethanol in Soxhlet extraction and 80% ethanol in ultrasound-assisted extraction. Although supercritical-CO2 extraction is an environmentally friendly application, the recovery rate of valuable components from raw materials is lower than in Soxhlet extraction and ultrasound-assisted extraction. However, since the volume of the extracts obtained from the supercritical-CO2 extraction is small, the ratio of phenolic compounds is higher
Decolorization of antraquinonic dye, Reactive Blue 114 from synthetic wastewater by Fenton process: Kinetics and thermodynamics
Karataş, Mustafa
Argun, Yusuf Alparslan (Aksaray, Yazar)In this work, the decolorization of C.I. Reactive Blue 114 (RB114), a commercially important anthraquinonic dye, by Fenton processes was investigated. The effects of operating parameters, such as Fe 2+:H 2O 2 ratio, pH value, reaction time and temperature were examined. Maximum decolorization (86%) efficiencies were achieved at the Fe 2+:H 2O 2 ratio of 0.1 and pH 3 for 20min reaction time. The decolorization kinetic of RB114 followed pseudo-second-order reaction kinetic. The paper also discussed thermodynamic parameters including changes in Gibbs free energy, and activation energy for the decolorization of RB114 by Fenton and exposed that the oxidation process was spontaneous under natural conditions
Application of Fenton process for decolorization of reactive black 5 from synthetic wastewater: Kinetics and thermodynamics
WOS: 000297150700004The decolorization and degradation efficiency of the azo dye Reactive Black 5 (RB5) by Fenton system were investigated in this study. The operation parameters such as Fe2+:H2O2 ratio, pH value, initial concentration of RB5, reaction time, and temperature were examined. Maximum decolorization (99%) and degradation (88% COD removal) efficiencies were achieved at the Fe2+:H2O2 ratio of 0.05 and pH 3 for 15-min reaction time. The decolorization kinetic of RB5 followed pseudo-second-order reaction kinetic. The increase of temperature caused decreasing of obtained rate constants and increasing of corresponding half-lives. The article also discussed thermodynamic parameters including changes in Gibbs free energy, enthalpy, and entropy for the decolorization of RB5 by Fenton and exposed that the oxidation process was spontaneous and exothermic under natural conditions. (c) 2010 American Institute of Chemical Engineers Environ Prog, 201
Bitlis Eren Üniversitesi Sağlık Yüksekokulu Hemşirelik Bölümü Öğrencilerinin Hastane Uygulamalarından Beklentileri ve Karşılaştıkları Sorunlar
Amaç: Bu çalışma Bitlis Eren Üniversitesi Hemşirelik öğrencilerinin hastane
uygulamalarından beklentilerinin belirlenmesi ve uygulama esnasında
karşılaştıkları sorunların tespit edilmesi amacıyla tanımlayıcı olarak planlanmıştır.
Gereç ve Yöntem: Veriler, Ocak 2010 tarihinde Bitlis Devlet Hastanesinde uygulama
yapan öğrencilere; eğitim, ihtiyaçlarının karşılanması, hasta bakımı
ve tedaviye katılımları, okul yönetimi, hocalar ve sağlık çalışanlarının öğrencilere
yaklaşımları konularında düşüncelerini ve görüşlerini belirtmeye
yardımcı olabilecek 16 soruluk bir anket formu ile toplandı. Ankete katılan
141 öğrencinin yaş ortalaması ve sorulara verilen cevaplar sınıf bazında ve
toplamda % olarak hesap edilmiştir.
Bulgular: Araştırmaya katılan öğrencilerin yaş ortalaması 21,31 olarak hesaplanmıştır.
Öğrencilerin % 75,18’i uygulamalarda keyifle ve huzurla çalışamadıklarını,
% 92,91’i teorik bilgilerini uygulama fırsatı bulamadıklarını,
% 74,47’si aldıkları tüm uygulamalı derslerle ilgili kliniklere çıkma fırsatı
bulamadıklarını belirtmiştir. Öğrencilerin % 41,14’ü uygulama alanlarında
hocaların bakım ve tedaviler konusunda model olmadıklarını, % 39’u stressiz,
rahat ve kendini vererek bir uygulamayı ancak yalnızken yapabildiğini,
% 65,25’i bakım ve tedavilerde ortaya çıkan eksiklik, aksaklık, yanlış tedavi
ve bakım gibi durumlarda suçlandığını, % 36,88’i görev dışı sorumluluklar
aldığını ifade etmiştir.
Sonuç: Öğrencilerin; hastanedeki fiziki yetersizlikler, hasta çeşitliliğinin azlığı,
tüm derslerle ilgili uygulama kliniği imkânı bulamamaları, hemşirelerle
olan ilişkilerdeki eksiklikler, öğretim elemanlarından yeterince yararlanamayıp
onların model olmadaki eksikliklerden dolayı hastane uygulamalarına
isteyerek katılmadıkları belirlenmiştir. Konuyla ilgili ivedilikle klinik
eğitim oryantasyon programları ve iyileştirme çalışmalarının yapılması gerekliliği
önerilmektedir
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