Manisa Celal Bayar Üniversitesi Akademik Arşiv Sistemi
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Does the Extent of Rod Bending and Actual Lumbar Lordosis Mismatch Affect Quality of Life?
No full text- BACKGROUND: To evaluate any mismatch between rod bending and actual lordosis during posterior lumbar instrumentation and its effects on the quality of life (QOL) of patients. - METHODS: Patient records for posterior lumbar fusion in 2018-2023 were retrospectively reviewed. The radiologic parameters consisted of pelvic incidence, sacral slope, L1S1 lumbar lordosis, lumbosacral angle, the distance between the posterior wall of the vertebra and the rod, lordosis of the rod. The postoperative QOL of patients was assessed using Oswestry Disability Index. The patients were grouped postoperative into Group-1 (minimal/moderate disability) and Group-2 (severe disability/crippled/bed - RESULTS: Total of 133 patients were included; 99 women, 34 men. The difference was significant for patients with diabetes to be presented in the more disabled Group2. The distance between the posterior vertebral wall and the rod was found to be short in Group-2. Preoperative and cantly higher in Group-2. The changing degree of pain was found to score high in Group-2. The postoperative visual analog scale was high in Group-2. The difference between the preoperative and postoperative lumbar sagittal Cobb and rod Cobb-angles was found to be high in Group-2. possible. To our knowledge, this is the first study that evaluated the effect of rod bending on quality of life (QOL) and supports that this might be affected in case of any mismatches
Effectiveness of peptone-yeast extract (P-Y) medium in the cultivation and isolation of Entamoeba histolytica/Entamoeba dispar in Turkish patients
No full textAmebiasis is a common protozoan infection worldwide, causing serious health problems in both children and adults. Today, almost 10% of the world population is infected with Entamoeba histolytica/Entamoeba dispar. The aims of this study were both the comparison of the reproduction rates,and densities of E. histolytica/E. dispar in Robinson, Dobell-Laidlaw and P-Y culture media and isolation of E. histolytica/E. dispar from stool samples in Peptone-Yeast (P-Y) medium. Trophozoites and cysts of E. histolytica/E. dispar, maintained in Robinson medium, and stool samples of patients with amebiasis were inoculated into P-Y, Robinson and Dobell-Laidlaw culture media. Reproduction rates reached their peak levels 48 h after the inoculation in all culture media. Reproduction rates in P-Y and Robinson media were found similar; however, they were higher than the reproduction rate in Dobell-Laidlaw medium (p 0.05). Twelve isolates from 12 patients were cultivated in P-Y medium and checked for reproduction everyday for 7 days. Twelve of the 12 (100%) isolates were cultivated in P-Y medium, indicating that the P-Y was an effective medium for the isolation of E. histolytica/E. dispar in stool samples. According to these results, P-Y medium could be preferred in immunologic, serologic and molecular studies and, thus the definitive diagnosis of amebiasis due to its low cost and simple formula. (C) 2003 Elsevier Science Inc. All rights reserved
A fast numerical method for fractional partial integro-differential equations with spatial-time delays
No full textThis study aims to efficiently solve the space-time fractional partial integro-differential equations with spatial-time delays, employing a fast numerical methodology dependent upon the matching polynomial of complete graph and matrix-collocation procedure. This methodology provides a sustainable approach for each computation limit since it arises from the durable graph structure of complete graph and fractional matrix relations. The convergence analysis is established using the residual function of mean value theorem for double integrals. An error estimation is also implemented. All computations are performed with the aid of a unique computer program, which returns the desired results in seconds. Some specific numerical problems are tested to discuss the applicability of the method in tables and figures. It is stated that the method stands for fast, simple and highly accurate computation. (c) 2020 IMACS. Published by Elsevier B.V. All rights reserved
Does Helicobacter pylori treatment improve the symptoms of globus hystericus?
No full textBackground/aims: Globus hystericus is a feeling of tension in the throat, irrelevant of swallowing, persisting for at least 12 weeks. Since the cause of glob us hystericus is not fully described, the treatment is controversial. We aimed in this study to determine the symptoms of gastroesophageal reflux disease, upper gastrointestinal endoscopic findings, prevalence of Helicobacter pylori, and post-treatment symptoms (symptoms of gastroesophageal reflux and/or Helicobacter pylori) in patients with a diagnosis of globus hystericus. Materials and Methods: One hundred twenty three patients were recruited from the archives of the Department of Gastroenterology and Endoscopy at Celal Bayar University Medical School between January 2009 and August 2010. Results: Helicobacter pylori was positive in 75 (60%) of 123 patients with globus hystericus. Helicobacter pylori (+) patients had significantly more heartburn, regurgitation, and inlet patch in upper esophagus than Helicobacter pylori (-) patients. Significantly more Helicobacter pylori (-) patients had normal endoscopy findings when compared to Helicobacter pylori (+) patients. While 27 (50%) of Helicobacter pylori-eradicated patients had regressing globus symptoms, 12 (17.3%) of them did not have any regression in globus symptoms. Improvement in symptoms showed a positive correlation with Helicobacter pylori eradication (p=0.001). Conclusions: Helicobacter pylori rate among cases with glob us sensation was similar to values in the general population. Helicobacter pylori eradication was found to decrease glob us symptoms
Artificial Neural Network (ANN) Approach to Hardness Prediction of Aged Aluminium 2024 and 6063 Alloys
No full textIn this study, the effect of aging heat treatment on the hardness of AA 2024 and AA 6063 aluminum alloys was investigated by experimental and an Artificial Neural Network (ANN). AA 2024 and AA 6063 aluminum alloys were solution treated at two different temperatures of 490 degrees C and 520 degrees C. Then both samples were cooled to room temperature. After this process, the samples were aged at three different temperatures (140 degrees C, 180 degrees C, 220 degrees C) for ten different periods of time (2, 4, 6, 8, 10, 12, 14, 16, 18, and 20 h.). The experimental results were trained in an ANNs program, and the results were compared with experimental values. It is observed that the experimental results coincided with the ANNs results
Myo-inositol is a promising treatment for the prevention of ovarian hyperstimulation syndrome (OHSS): an animal study (vol 292, pg 1163, 2015)
No full textReconstruction of burn contractures with free anterolateral thigh flap in various anatomic sites
No full textBACKGROUND: Burn contractures that cause a restriction in extremity movements have to be reconstructed. Free microvascular flaps are generally needed in cases of severe contractures. The ideal free flap for severe contracture defects has to have a large skin island without bulk and a long pedicle for preventing recurrence and tension-free adaptation. Anterolateral thigh flap (ALT flap) that meets these features has widely been used for several indications in reconstructive surgery. Usage of ALT flap in burn contracture was described for burn and axillary contractures in literature. In this study, the usage of free ALT flaps in various anatomic contracture sites was reported. METHODS: Fifteen free ALT flaps were performed in 14 (12 male, two female) patients with a mean age of 36.6. Burn contracture defects in neck, axilla, popliteal, cubital region, plantar foot and hand were reconstructed with ALT flap. RESULTS: No total flap loss was encountered. Distal flap necrosis was seen in one case. All patients had significant improvement in a range of motions. Recurrence in contracture was seen in one patient with hand flexor contracture due to lack of physical treatment. CONCLUSION: ALT flap can safely be used in various anatomic contracture sites. Suprafascial elevation of the flap can be preferred for better adaptation in the neck, hand and foot and prevention of bulky appearance
Energy storage analysis for discharging of nanoparticle enhanced phase change material within a triplex-tube thermal storage
No full textIn current transient modeling, discharging of PCM based on FEM has been scrutinized. Due to importance of phenomenon near the solid front, time linked mesh has been employed and to reduce the thermal irreversibility, copper oxide nanomaterial was dispersed into H2O. Outputs indicate that using wavy wall and dispersing Platelet copper oxide are capable for expedition of discharging. Obtaining the completed solidification in minimum time is main criteria for designing a storage unit. Changing shape of nanoparticle from spherical to Platelet can reduce the solidification duration about 5.96%. Utilizing greater amplitude of sinusoidal wall can reduce the discharging time by about 7.58% which is related to stronger conduction mechanism. Inclusion of nanoparticles, not only improve the phase change rate but also decline the irreversibility due to lower temperature of domain. Needed time declines about 22.7% with disperse of platelet CuO. As shape of powder changes from platelet to sphere, required time alters from 337.41 s to 358.8 s. The solidification rate for A = 0.3 is 1.06 times greater than that of A = 0.1
A cellulose-based membrane with temperature regulation and water transportation for thermal management applications
No full textThermal management materials are widely employed in the construction and textile industries due to their non energy input and the ability to precisely adjust the temperature. However, the application of thermal management technique toward sustainable agriculture is still challenging due to the complex environment. Herein, a coupled insulation system with highly asymmetric thermal conductivity and unidirectional water penetration is developed by using the integration of thermal management and water diodes technologies. The hierarchical membrane shows asymmetric thermal conductivity of carbonized cellulose layer (CCL, 0.64 W m-1 K-1) and Al2O3/cellulose layer (ACL, 0.16 W m-1 K-1), and good moisture permeability owing to the anisotropic wettability of the material and hierarchical structure design. Thermal management performance revealed that compared with PET and cellulose membrane, the membrane temperature increased by 4.1 & DEG;C and 1.3 & DEG;C, respectively, resulting in a decrease in greenhouse heat dissipation. Besides, benefitting from the efficient photothermal conversion performance of carbonized cellulose, the outside can rapidly warm up to 42 & DEG;C under 120 W/m2 sun radiation, providing a suitable growth temperature for crops. Meanwhile, unidirectional water penetration achieved in the 60 s not only enables the membrane to maintain long-term and effective insulation, but also ensures the demand of crops for water during drought conditions. Furthermore, the anti-flaming property broadens the range of applications, reducing damage in an emergency such as a fire. The demonstrated membrane can potentially replace the commercial plastic-based greenhouse materials, and the gradient and bilayer design open a new avenue for sustainable thermal management application
Histopathological and Genotoxic Effects of Pollution on Anguilla anguilla in the Gediz River (Turkey)
No full textThe aim of the present study was to determine heavy metal accumulation in water, sediment and some tissues of Anguilla anguilla along with determining histopathological and genotoxic effects of accumulation on these tissues by using light microscopy. Water, sediment and fish tissue samples taken from different sites of 3 different study areas were studied and the order of accumulation of metals was Fe>Pb>Mn>Co>Zn>Ni> Cr>Cu>Cd in water, Fe>Co>Mn>lpb>Zn>Ni>Cr>Cu>Cd in sediment and Cd>Mn>Cu>Cr>Ni>Fe>Zn>Co>lpb, Cd>lpb>Ni>Cr>Mn>Cu>Fe>Co>Zn and Cr>Ni>Zn>Cd>lpb>Mn>Cu>Fe>Co in liver, muscle and gill of fish, respectively. In histopathological studies, a decrease in the length of primary and secondary lamellae of gills, fusion in secondary lamellae, cellular proliferation, clavate lamellae formation and necrosis were observed. In liver tissue, dilation of sinusoid, increase in the number of erythrocytes, ruptured hepatocytes, decrease in glycogen accumulation and vacuolization were observed. In muscle tissue, necrosis, cellular dissolution and loss of striatation in muscle fibers were found. It was observed that pollution of water had no genotoxic effect on Anguilla anguilla