13 research outputs found
Investigation of spiral surface RF microcoils for nuclear magnetic resonance microscopy.
Investigation of spiral surface RF microcoils for nuclear magnetic resonance microscopy
Efficacy of balanced torsional phacoemulsification tip for cataract surgery
Purpose: To compare the efficacy of the Intrepid((R)) Balanced torsional phacoemulsification tip to that of the 30 degrees Ozil((R)) and 45 degrees Kelman((R)) tips using Centurion Vision System. Methods: This study included 150 eyes that underwent torsional phacoemulsification surgery using 30 degrees Ozil((R)) tip (Group 1, 48 eyes), Intrepid((R)) Balanced tip (Group 2, 52 eyes), or 45 degrees Kelman((R)) tip (Group 3, 50 eyes). Ultrasound time (UST), cumulative dissipated energy (CDE), average phaco power, average torsional amplitude, balanced salt solution volume, aspiration and operation time, and preoperative, postoperative corrected distance visual acuity, central corneal thickness were recorded. Results: The mean UST, CDE, average phaco power, average torsional amplitude were 49.9 +/- 15.7 s, 10.8 +/- 4.5%-s, 23.9 +/- 4.6%, and 51.4 +/- 5.7% in the Ozil((R)) group and 47.5 +/- 10.6 s, 5.3 +/- 2.2%-s, 12.5 +/- 5.3%, and 28.9 +/- 7.2% in the Intrepid((R)) Balanced group, and 48.1 +/- 12.7 s, 6.9 +/- 3.3%-s, 18.9 +/- 5.9%, and 39.2 +/- 7.9% in the Kelman((R)) group, respectively. The CDE, average phaco power, and average torsional amplitude of the Intrepid((R)) Balanced group were significantly lower than other groups (P 0.05). Conclusion: Intrepid((R)) Balanced tip, by means of its distinctive double bent design and balanced energy distribution, offers more effective phacoemulsification compared to conventional 30 degrees Ozil((R)) and 45 degrees Kelman((R)) tips
Bird diversity along a riparian corridor in a moderate urban landscape
Civilization built around rivers directly affects riparian corridor structure and ecology. Degradation, pollution, and deterioration along riparian corridors in urban landscapes change species composition and biodiversity. Birds are one of the most vulnerable taxa to ecological changes. The main objective of our study was to spatially compare bird species richness, abundance, and community structure along the Asar River, an urban riparian corridor in Duzce, Turkey. We identified 63 bird species, comprising 6722 individuals, and classified them into one of three groups: generalist species (11 species), woodland species (40 species), and waterbird species (12 species). Bird species richness was positively related to vegetative cover and negatively to urbanization. Richness was low in the winter and was higher during spring and summer. Riparian Quality Index (RQI) scores (mean = 54.8 +/- 33.7; max. = 97 and min. = 5) were relatively low for all sampling plots and was reduced by human activities (e.g., roads, farmland, settlement). The number of woodland bird species changed positively (r = 0.71) with RQI. The generalist bird species, adapted to urbanization, were more common around settlements and open areas. Human population and settlement around Asar River increased one-third and farmland and natural habitat decreased onefifth during the last decade. The area has high potential for growth and increased urbanization, thus increasing the pressure on the natural areas. Activities that diminish the amount of tree cover in the riparian corridor should be avoided. Habitat restoration and rehabilitation will increase RQI values, which can be used as indicators for bird richness in urban landscapes and benefit avian diversity along the riparian corridor. The existing riparian corridor and any enhancements to the corridor will help conserve Duzce's biodiversity in the future.Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [116O596]; TUBITAK 2219 GrantTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK); National Science Foundation, United StatesNational Science Foundation (NSF) [OIA-1458952]; USDA National Institute of Food and Agriculture, McIntire Stennis project [WVA00117, WVA00812]; West Virginia Agricultural and Forestry Experiment StationThis study includes results of The Scientific and Technological Research Council of Turkey (TUBITAK) Project number 116O596 entitled Determining of Landscape Character of Urban Water Corridors as Visual and Ecological; A Case Study of Asar Suyu in Duzce. A. Keten was supported by the TUBITAK 2219 Grant, and J. T. Anderson was supported by the National Science Foundation, United States under Cooperative Agreement No. OIA-1458952, the USDA National Institute of Food and Agriculture, McIntire Stennis project WVA00117 and WVA00812, and the West Virginia Agricultural and Forestry Experiment Station during manuscript preparation.WOS:0005789675000462-s2.0-8508889568
The Pathologic Point of View of Laparoscopic Adrenalectomy in the Era of Radiologic Imaging: A Multicenter Retrospective Study
Introduction/Aim: This study aimed to determine if laparoscopic adrenalectomy (LA) is feasible for the treatment of adrenal malignancies and metastasis, and to review the final pathology findings in order to clarify the indications for surgery. Materials and Method: The medical records of all patients that underwent LA at 3 university hospitals between January 1, 2008, and May 1, 2015, were retrospectively reviewed. Results: In total, 189 laparoscopic adrenalectomies were completed successfully. Mean duration of surgery was 79.3 +/- 38.6 min and mean estimated intraoperative blood loss was 39.9 ml. Intraoperatively, 4 patients had major complications: spleen injury (n = 1), renal vein injury (n = 2) and diaphragm injury (n = 2). Histopathological examination showed that there were 20 different types of lesions. Surgical margins (SMs) were tumor free in 95.2% of the patients. Moreover, SMs were tumor free in all patients with adrenocortical carcinomas; however, positive margins were noted in 7 of 23 patients (30.4%) with malignant adrenal tumors. Conclusions: The present findings support the use of laparoscopy for metastatic adrenal masses, despite a high positive margin rate. LA is a safe, feasible and cost-effective procedure for the management of benign and malignant adrenal masses. (C) 2016 S. Karger AG, Base
The Pathologic Point of View of Laparoscopic Adrenalectomy in the Era of Radiologic Imaging: A Multicenter Retrospective Study
Introduction/Aim: This study aimed to determine if laparoscopic adrenalectomy (LA) is feasible for the treatment of adrenal malignancies and metastasis, and to review the final pathology findings in order to clarify the indications for surgery. Materials and Method: The medical records of all patients that underwent LA at 3 university hospitals between January 1, 2008, and May 1, 2015, were retrospectively reviewed. Results: In total, 189 laparoscopic adrenalectomies were completed successfully. Mean duration of surgery was 79.3 +/- 38.6 min and mean estimated intraoperative blood loss was 39.9 ml. Intraoperatively, 4 patients had major complications: spleen injury (n = 1), renal vein injury (n = 2) and diaphragm injury (n = 2). Histopathological examination showed that there were 20 different types of lesions. Surgical margins (SMs) were tumor free in 95.2% of the patients. Moreover, SMs were tumor free in all patients with adrenocortical carcinomas; however, positive margins were noted in 7 of 23 patients (30.4%) with malignant adrenal tumors. Conclusions: The present findings support the use of laparoscopy for metastatic adrenal masses, despite a high positive margin rate. LA is a safe, feasible and cost-effective procedure for the management of benign and malignant adrenal masses. (C) 2016 S. Karger AG, Base