422 research outputs found

    erectile function after radical prostatectomy

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    In this study our aim is to increase the understanding of the prostate and related organs anatomy for better continence and erectile function results after urological surgery. Prostate and related organs were dissected from seven cadavers. After dissection, 165 serial sections with 300 mu m thickness were derived at a 100 mu m interval. The histological images were examined and imported to the computer. Three-dimensional (3D) remodeling had been performed. The findings were evaluated into three categories: macroscopic, microscopic and 3D reconstruction. Striated muscle fibers had been detected at the anterior fibromuscular stroma in histological sections. In 3D remodeling, urethra seemed to be a complete functional unit, beginning from the trigone up to the membranous urethra. The neurovascular bundles run under the pelvic fascia on both sides and go through to the bladder neck at 5 and 7 o'clock. Computer remodeling demonstrated that neurovascular structures had a close association with the bladder neck and the seminal vesicle. Computer program made it possible to rotate all 3D-reconstructed figures by 3601 and examine them from all possible angles. All reconstructed structures can be examined together at the same time or one by one. Surgeons must pay special attention to the continence area described as a single unit, beginning from trigone to the membranous urethra, during the surgery. Meticulous dissection of the neurovascular bundles, especially close to the seminal vesicles and bladder neck, during the radical prostatectomy is necessary. These reconstructions can be used for the educational purpose of medical students as well as the urology surgeons

    Off-Line Error Prediction, Diagnosis and Recovery Using Virtual Assembly Systems

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    Automated assembly systems often stop their operation due to the unexpected failures occurred during their assembly process. Since these large-scale systems are composed of many parameters, it is difficult to anticipate all possible types of errors with their likelihood of occurrence. Several systems were developed in the literature, focusing on online diagnosing and recovering the assembly process in an intelligent manner based on the predicted error scenarios. However, these systems do not cover all of the possible errors and they are deficient in dealing with the unexpected error situations. The proposed approach uses Monte Carlo simulation of the assembly process with the 3D model of the assembly line to predict the possible errors in an offline manner. After that, these predicted errors can be diagnosed and recovered using Bayesian reasoning and genetic programming. A case study composed of a peg-in-hole assembly was performed and the results are discussed. It is expected that with this new approach, errors can be diagnosed and recovered accurately and costly downtime of robotic assembly systems will be reduced.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87271/4/Saitou102.pd

    Assessment of plasma nitric oxide concentration and erythrocyte arginase activity in dairy cows with traumatic reticuloperitonitis

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    ΔΕΝ ΔΙΑΤΙΘΕΤΑΙ ΠΕΡΙΛΗΨΗThe aim of this study was to evaluate plasma nitric oxide (NO) concentrations, erythrocyte arginase (ARG) activity, plasma fibrinogen (Fb) and serum iron (Fe) levels and some biochemical parameters in dairy cows with traumatic reticuloperitonitis (TRP). The animal material of the study consisted of 14 Swiss Brown cows diagnosed with TRP (TRP group) between 4-8 years old brought to Firat University Animal Hospital Clinics and 14 healthy Swiss Brown cows (control group) aged 4-8 years obtained from dairy farms in different regions. Blood samples were taken from the vena jugularis of the animals. Concentrations of plasma NO, Fb, erythrocyte ARG activity, and some biochemical markers were determined after the serum and plasma of the receiving blood were separated. While the NO (318.9±5.8 vs. 270.3±9.6 μmol/L) concentrations of the TRP group were found to be significantly higher than the control group (P<0.001), the erythrocyte ARG activity (29.5±0.5 vs. 35.2±1.0 U/hb) was found to be higher in the control group (P<0.001). It was also observed that total protein (TP) (6.6±0.5 vs. 7.8±0.1 g/dL) (P<0.05) and Fb (914.3±68.6 vs. 265.4±19.8 mg/dL) (P<0.001) concentrations were higher in the TRP group, compared to the control group, while albumin (ALB) (1.9±0.2 vs. 3.1±0.1 g/dL) and Fe (47.00±5.29 vs.106.79±9.44 μg/dL) concentrations were significantly lower than the control group (P<0.001). In addition, a positive correlation was found between NO and Fb concentrations and between erythrocyte ARG activity and Fe concentrations. As a result, it was determined that NO concentrations were increased and erythrocyte ARG activity was not significant in dairy cows with TRP. In addition, increased plasma Fb concentration and decreased serum Fe concentration were determined in dairy cows with TRP. This study demonstrated that plasma NO, Fb and serum Fe concentrations in dairy cows with TRP may be useful markers for prognosis

    Would FRAX define the high fracture risk if the patients were evaluated the day before hip fracture?

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    Objective: The aim of this study was to evaluate the 10-year major osteoporotic and hip fracture risks in patients with a recent hip fracture. Material and Methods: The study population comprised 58 patients (32 male and 26 female, mean age 79.1 years) with a recent hip fracture. A bedside questionnaire including fracture risk assessment tool (FRAX®) variables and fall frequency was administered to the patients. The FRAX® 10-year major osteoporotic and hip fracture risks were calculated. Statistical analyses were performed to compare different age groups (60–69 years, 70–79 years, and ≥80 years). Results: The mean 10-year major osteoporotic and hip fracture risks were 13.9% and 78%, respectively. If the National Osteoporosis Foundation guidelines were taken into account according to major osteoporotic and hip fracture risks using FRAX® the day before the fracture, treatment would not be initiated in 75.8% and 18.9% of patients, respectively. There were significant differences between the age groups according to the 10-year major osteoporotic and hip fracture probability and fall frequency (p<0.001, p<0.001, and p=0.005, respectively). Conclusion: In our study group, the FRAX® 10-year major osteoporotic fracture probability had an underestimation in younger patients with a history of frequent falling and did not seem to improve the definition of high-risk patients. The 10-year probability of hip fracture by the FRAXObjective: The aim of this study was to evaluate the 10-year major osteoporotic and hip fracture risks in patients with a recent hip fracture. Material and Methods: The study population comprised 58 patients (32 male and 26 female, mean age 79.1 years) with a recent hip fracture. A bedside questionnaire including fracture risk assessment tool (FRAX®) variables and fall frequency was administered to the patients. The FRAX® 10-year major osteoporotic and hip fracture risks were calculated. Statistical analyses were performed to compare different age groups (60–69 years, 70–79 years, and ≥80 years). Results: The mean 10-year major osteoporotic and hip fracture risks were 13.9% and 78%, respectively. If the National Osteoporosis Foundation guidelines were taken into account according to major osteoporotic and hip fracture risks using FRAX® the day before the fracture, treatment would not be initiated in 75.8% and 18.9% of patients, respectively. There were significant differences between the age groups according to the 10-year major osteoporotic and hip fracture probability and fall frequency (p<0.001, p<0.001, and p=0.005, respectively). Conclusion: In our study group, the FRAX® 10-year major osteoporotic fracture probability had an underestimation in younger patients with a history of frequent falling and did not seem to improve the definition of high-risk patients. The 10-year probability of hip fracture by the FRAX® tool can classify populations at risk more effectively. tool can classify populations at risk more effectively. © 2015 by Turkish Society of Physical Medicine and Rehabilitation

    Penerapan Pendidikan Matematika Realistik Indonesia (Pmri) untuk Meningkatkan Hasil Belajar Matematika Siswa Kelas V Sdn 8 Duri Barat Kecamatan Mandau Kabupaten Bengkalis

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    This research was carried out because of low learning value of fifth grader students in Math subject of SD Negeri 8 Duri Barat. Among 20 Students, 6 students (30%) reached the standard of completeness while the students could not reach the standard is 14 students (70%) with average 53,50. The purpose of this study is to increase the fifth grader students' outcome in Math subject of SD Negeri 8 Duri Barat with the application of Indonesia Realistic Mathematic Education (PMRI). The results obtained by the average value of the basic score 53,50 in the first cycle increased by 12,25 to 65,75. In the second cycle the average value of students also increased as much as 28 becoming 81,50. On the basis of completeness score of Math subject, student learning outcomes is 30% (not complete). After the teacher was applying the Application of Indonesia Realistic Mathematic Education (PMRI) in the first cycle the classical completeness increase becoming 40 % (not complete), In the second cycle the classical completeness that have gotten by students increased becoming 80%. Teacher's activity at the first meeting is 50% in enough category level. The second meeting increased becoming 75% in good category level. In the second cycle increased up to 95% in very good category level. In the second meeting of second cycle, the teacher's activity increased becoming 100% in the very good category level. The students' activity in the cycle I of first meeting got 50% percentage in enough category level. The second meeting of the first cycle becoming 60% in enough category. At the first meeting of the second cycle of student activity increased to 75% in good category, and the second meeting of the second cycle increased again to 90% with a very good category. Key Words : Indonesian Realistic Mathematic Education, learning outcomes mathematic

    A cadaveric histological investigation of the prostate with three-dimensional reconstruction for better results in continence and erectile function after radical prostatectomy

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    In this study our aim is to increase the understanding of the prostate and related organs anatomy for better continence and erectile function results after urological surgery. Prostate and related organs were dissected from seven cadavers. After dissection, 165 serial sections with 300 μm thickness were derived at a 100 μm interval. The histological images were examined and imported to the computer. Three-dimensional (3D) remodeling had been performed. The findings were evaluated into three categories: macroscopic, microscopic and 3D reconstruction. Striated muscle fibers had been detected at the anterior fibromuscular stroma in histological sections. In 3D remodeling, urethra seemed to be a complete functional unit, beginning from the trigone up to the membranous urethra. The neurovascular bundles run under the pelvic fascia on both sides and go through to the bladder neck at 5 and 7 o'clock. Computer remodeling demonstrated that neurovascular structures had a close association with the bladder neck and the seminal vesicle. Computer program made it possible to rotate all 3D-reconstructed figures by 360° and examine them from all possible angles. All reconstructed structures can be examined together at the same time or one by one. Surgeons must pay special attention to the continence area described as a single unit, beginning from trigone to the membranous urethra, during the surgery. Meticulous dissection of the neurovascular bundles, especially close to the seminal vesicles and bladder neck, during the radical prostatectomy is necessary. These reconstructions can be used for the educational purpose of medical students as well as the urology surgeons

    Procjena serumskoga srčanog troponina I u ovaca s akutnom mliječnokiselinskom acidozom buraga.

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    Cardiac troponin I (cTnI) is known to be a sensitive cardio biomarker to determine the myocardial damage in diseases affecting the cardiac muscles. However, there has not been sufficient research about cTnI concentration, which is the most sensitive indicator of myocardial damage in sheep with acute ruminal lactic acidosis (ARLA). For this reason this study aimed to evaluate the serum cTnI concentration in sheep with ARLA. Those diagnosed with ARLA (n = 20) from the total of 40 Akkaraman (White karaman) sheep, aged between 1-2 years used in this study comprised the affected group and the healthy ones (n = 20) comprised the control group. Ruminal fluid was obtained from the animals from both groups with the help of a stomach tube, and examined immediately. Blood samples were taken from the jugular vein of the sheep and the serum was separated. Serum cTnI concentration was measured with a commercial immunoassay system, using the one-step sandwich method. Serum enzyme (ALT, AST, CK-MB and LDH) activities were determined via a clinical biochemistry autoanalyzer. The average serum cTnI concentration was at the level of 0.035 ± 0.015 ng/mL (range; 0.02-0.06 ng/mL) in the control group sheep. It was determined that there was a substantial increase in the group with ARLA and the average concentration reached the level of 0.103 ± 0.080 ng/mL (range; 0.03-1.7 ng/mL) (P<0.0001). It was observed that another cardio marker, CK-MB, was found in the group with ARLA 454.50 ± 191.88 U/L (range; 214-861 U/L) and increased in comparison with the control group 224.35 ± 83.33 U/L (range; 133-421 U/L) (P<0.0001). An increase in LDH (P<0.001) and AST (P<0.001) from liver enzymes in the group with ARLA and ALT activities compared to the control group was identified (P<0.01). In conclusion, this present study determined that the serum cTnI concentration was high in sheep with ARLA and it was concluded that it could be useful to evaluate cTnI concentration as an important marker to determine the prognosis in sheep with ARLA.U bolestima koje zahvaćaju srčani mišić, srčani troponin I (cTnI) poznat je kao osjetljivi biomarker za određivanje oštećenja srčanog mišića. Ipak, nema puno istraživanja o koncentraciji cTnI kao najosjetljivijeg indikatora za oštećenje srčanog mišića kod ovaca s akutnom mliječno-kiselinskom acidozom buraga. Zbog navedenog, u ovom istraživanju namjera je bila procijeniti koncentraciju serumskog cTnI kod ovaca s akutnom mliječno-kiselinskom acidozom. Ovce s dijagosticiranom akutnom mliječno-kiselinskom acidozom (n = 20) u skupini od ukupno 40 akaraman (bijeli karaman) ovaca, u dobi od jedne do dvije godine, činile su pokusnu skupinu bolesnih jedinki. Preostale ovce (n = 20) činile su kontrolnu skupinu zdravih jedinki. Tekućina buraga od svih pretraženih životinja dobivena je sondiranjem i odmah analizirana. Uzorci krvi uzeti su iz jugularne vene te je iz njih izdvojen serum. Koncentracija serumskog cTnI mjerena je komercijalnim imunoenzimnim testom, sendvič postupkom. Aktivnosti serumskih enzima (ALT, AST, CK-MB i LDH) utvrđene su uporabom kliničkog biokemijskog autoanalizatora. Prosječna serumska koncentracija cTnI u kontrolnoj skupini ovaca bila je na razini 0,035 ± 0,015 ng/mL (raspon: 0,02 - 0,06 ng/mL). U skupini ovaca s acidozom utvrđeno je postojano povećanje koncentracije cTnI koja je dosegla razinu od 0,103 ± 0,080 ng/mL (raspon: 0,03 - 1,7 ng/mL) (P<0,0001). U pokusnoj skupini opaženo je povećanje i drugog srčanog markera CK-MB koji je u ovoj skupini iznosio 454,50 ± 191,88 U/I (raspon: 214 - 861 U/I), a u kontrolnoj 224,35 ± 83,33 U/I (raspon: 133 - 421 U/I) (P<0,0001). Također je ustanovljeno da su ovce s acidozom u odnosu na ovce kontrolne skupine imale povišene jetrene enzime LDH (P<0,001) i AST (P<0,001), odnosno ALT (P<0,01). Zaključeno je da ovce s acidozom imaju povećanu koncentraciju serumskog cTnI koji može poslužiti kao važan biljeg za prognozu bolesti
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