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Hepatic Lipoma: Radiological Imaging Findings

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Surgical Science 2011年第7期2卷 363-365页

作者： Mustafa Koplay alper hacioglu Mustafa Cem Algin 不详

Hemangiomas and hepatic metastases are the leading reasons of echogenic masses on ultrasound (US) evaluation of the liver. Lipomas of the liver are extremely rare and have been sporadically reported in the literature during the last century. The present report describes a patient with hepatic lipoma together with liver metastases from gastric adenocarcinoma. A 54 years old woman was refered to our department because of abdominal pain. Patient has been operated for gastric adenocarcinoma 3 months ago she was evaluated with US, computed tomography (CT) and magnetic resonance imaging (MRI).The abdominal US revealed a 12 × 10 mm echogenic mass with smooth borders in 7th segment of the liver. CT scan showed a hypodense lesion in the same hepatic segment with fat dencity and no contrast involvement. MRI demonstrated the same lesion on T1 and T2 weighted images as hyperintence mass. The final radiographic diagnosis was he-patic lipoma. However, there was metastas in the liver of patient. Patient died 4 months later due to metas-tatic gastric adenocarcinoma. Hepatic lipoma should be kept in mind in echogenic masses on US evaluation of the liver.

关键词： Lipoma Liver Different Diagnosis

Design and synthesis of synthetic promoters for consistency of gene expression across growth phases and scale in ***

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Synthetic and Systems Biotechnology 2024年第2期9卷 330-339页

作者： Kristin V.Presnell Omar Melhem Sarah M.Coleman Nicholas J.Morse Hal S.alper McKetta Department of Chemical Engineering The University of Texas at Austin200E Dean Keeton St.Stop C0400AustinTX78712USA Institute for Cellular and Molecular Biology The University of Texas at Austin2500 Speedway AvenueAustinTX78712USA

Metabolic engineering and synthetic biology endeavors benefit from promoters that perform consistently(or robustly)with respect to cellular growth phase(exponential and stationary)and fermentation scale(microtiter plates,tubes,flasks,and bioreactors).However,nearly all endogenous promoters(especially in Saccharomyces cerevisiae)do not perform in this *** this work,a hybrid promoter engineering strategy is leveraged to create novel synthetic promoters with robustness across these *** a multi-dimensional RNA-seq dataset,promoters with specific phase dependencies were *** enriched with functional transcription factors were identified using MEME *** motif-containing fragments could impart activity dependence in the opposing ***,we obtain two new promoters with high and consistent expression across both phases by increasing the exponential phase activity of the starting stationary-phase scaffold by 38 and 23-fold ***,we show that these promoters function consistently across various laboratory growth scales over time in a microtiter plate and in ***,this work presents and validates a new strategy for engineering promoters in *** with high levels of expression that are robust to cellular growth phase and the scale of the culture.

关键词： endogenous synthetic stationary

Exact Solutions to (3+1) Conformable Time Fractional Jimbo–Miwa,Zakharov–Kuznetsov and Modified Zakharov–Kuznetsov Equations

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Communications in Theoretical Physics 2017年第5期67卷 479-482页

作者： alper Korkmaz Department of Mathematics Cankiri Karatekin UniversityCankiriTurkey

Exact solutions to conformable time fractional (3+1)-dimensional equations are derived by using the modified form of the Kudryashov method. The compatible wave transformation reduces the equations to an ODE with integer orders. The predicted solution of the finite series of a rational exponential function is substituted into this *** resultant polynomial equation is solved by using algebraic operations. The method works for the Jimbo–Miwa, the Zakharov–Kuznetsov, and the modified Zakharov–Kuznetsov equations in conformable time fractional forms. All the solutions are expressed in explicit forms.

关键词： fractional (3+1)-dimensional Jimbo–Miwa equation fractional modified Zakharov–Kuznetsov equation modified Kudryashov method fractional Zakharov–Kuznetsov equation exact solutions

Physical,Anatomical,and Photochemical Analyses of Some ExoticWood Species Submitted to Heat Treatment

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Journal of Renewable Materials 2021年第8期9卷 1485-1501页

作者： alper Aytekin Hikmet Yazıcı Bartın University Department of Management Information SystemsBartın74100Turkey Zonguldak Bulent Ecevit University Çaycuma Vocational SchoolZonguldak67100Turkey

The objective of this study was to evaluate the effect of heat treatment on decorative properties including glossiness,color coordinates including lightness(L),blue-yellow(b^(*))and red-green(a^(*)),hardness(shore-D)morphological characterization and thermal properties of some exotic wood *** treatment of anigre(Aningeria altissima),cedrorana(Cedrelinga catenaeformis),cemara(Casuarina sumatrana)and coronilla(Scutia buxifolia)wood materials were performed in an oven with a programmable controller at 210°C for 3 *** obtained samples were conditioned in a climate cabin and the decorative properties,morphological characterization with scanning electron microscopy(SEM)and thermal properties with thermogravimetric analyzer(TGA)of the obtained samples were *** test results showed that color got darker with heat treatment,specifically L and b^(*)decreased,and a^(*)increased for anigre and cedrorana but a^(*)decreased for cemara and *** glossiness for all samples generally increased from 20°to 85°but heat treatment decreased the *** density generally decreased with heat treatment and decrease ratio in the density was found to be in range from 5.6%to 10.6%.According to the SEM analysis,some cracks,pit aspiration and layer decomposition in the micro level of the wood structure were *** showed that heat treatment makes thermally more stable *** a result,it can be said that heat treatment improved the decorative properties of the exotic wood.

关键词： Heat treatment color gloss hardness anigre wood cedrorana wood cemara wood coronilla wood

Dark Soliton Solutions of Space-Time Fractional Sharma–Tasso–Olver and Potential Kadomtsev–Petviashvili Equations

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Communications in Theoretical Physics 2017年第2期67卷 182-188页

作者： Ozkan Guner alper Korkmaz Ahmet Bekir Cankiri Karatekin University Department of International Trade Cankiri 18200 Turkey ankiri Karatekin University Department of Mathematics Cankiri 18200 Turkey Eskisehir Osniangazi University Department of Mathematics & Computers Eskisehir 26200 Turkey

Dark soliton solutions for space-time fractional Sharma–Tasso–Olver and space-time fractional potential Kadomtsev–Petviashvili equations are determined by using the properties of modified Riemann–Liouville derivative and fractional complex transform. After reducing both equations to nonlinear ODEs with constant coefficients, the tanh ansatz is substituted into the resultant nonlinear ODEs. The coefficients of the solutions in the ansatz are calculated by algebraic computer computations. Two different solutions are obtained for the Sharma–Tasso–Olver equation as only one solution for the potential Kadomtsev–Petviashvili equation. The solution profiles are demonstrated in 3D plots in finite domains of time and space.

关键词： exact solution modified Riemann–Liouville derivative space-time fractional Sharma–Tasso–Olver equation space-time fractional potential Kadomtsev–Petviashvili equation

Ameliorative effects of bombesin and neurotensin on trinitrobenzene sulphonic acid-induced colitis,oxidative damage and apoptosis in rats

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World Journal of Gastroenterology 2008年第8期14卷 1222-1230页

作者： alper Akcan Sebahattin Muhtaroglu Hulya Akgun Hizir Akyildiz Can Kucuk Erdogan Sozuer alper Yurci Namik Yilmaz Department of General Surgery ErciyesUniversity School of Medicine Kayseri 38039 Turkey Department of Biochemistry ErciyeUniversity School of Medicine Kayseri 38039 Turkey Department of Pathology Erciyes University School of Medicine Kayseri 38039 Turkey Department of Gastroenterology Erciyes University School of Medicine Kayseri 38039 Turkey

AIM:To investigate the effects of bombesin (BBS) and neurotensin (NTS) on apoptosis and colitis in an ulcerative colitis model. METHODS:In this study, a total of 50 rats were divided equally into 5 groups. In the control group, no colitis induction or drug administration was performed. Colitis was induced in all other groups. Following the induction of colitis, BBS, NTS or both were applied to three groups of rats. The remaining group (colitis group) received no treatment. On the 11th d after induction of colitis and drug treatment, blood samples were collected for TNF-α and IL-6 level studies. Malondialdehyde (MDA), carbonyl, myeloperoxidase (MPO) and caspase-3 activities, as well as histopathological findings, evaluated in colonic tissues. RESULTS:According to the macroscopic and microscopic findings, the study groups treated with BBS, NTS and BBS + NTS showed significantly lower damage and inflammation compared with the colitis group (macroscopic score, 2.1 ± 0.87, 3.7 ± 0.94 and 2.1 ± 0.87 vs 7.3 ± 0.94;microscopic score, 2.0 ± 0.66, 3.3 ± 0.82 and 1.8 ± 0.63 vs 5.2 ± 0.78, P < 0.01). TNF-α and IL-6 levels were increased significantly in all groups compared with the control group. These increases were significantly smaller in the BBS, NTS and BBS + NTS groups compared with the colitis group (TNF-α levels, 169.69 ± 53.56, 245.86 ± 64.85 and 175.54 ± 42.19 vs 556.44 ± 49.82;IL-6 levels, 443.30 ± 53.99, 612.80 ± 70.39 and 396.80 ± 78.43 vs 1505.90 ± 222.23, P < 0.05). The colonic MPO and MDA levels were significantly lower in control, BBS, NTS and BBS + NTS groups than in the colitis group (MPO levels, 24.36 ± 8.10, 40.51 ± 8.67 and 25.83 ± 6.43 vs 161.47 ± 38.24;MDA levels, 4.70 ± 1.41, 6.55 ± 1.12 and 4.51 ± 0.54 vs 15.60 ± 1.88, P < 0.05). Carbonyl content and caspase-3 levels were higher in the colitis and NTS groups than in control, BBS and BBS + NTS groups (carbonyl levels, 553.99 ± 59.58 and 336.26 ± 35.72 vs 209.76 ± 30.92, 219.76 ± 25.77 and 220.34 ± 36.95

关键词： Bombesin Neurotensin Colitis Apoptosis

Large pedinculated antral hyperplastic gastric polyp traversed the bulbus causing outlet obstruction and iron deficiency anemia: endoscopic removal

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World Journal of Gastroenterology 2003年第3期9卷 633-634页

作者： Murat alper Yusuf Akcan Olcay Belenli Departments of Pathology University of Abant izzet BaysalDüzce Medical FacultyTurkey Departments of Gastroenterology University of Abant izzet BaysalDüzce Medical FacultyTurkey

We present here a large (3 cm) hyperplastic gastric polyp prolapsed into duodenum and caused outlet obstruction and iron deficiency anemia in 60 years old male *** removal was performed successfully.

关键词： Endoscopy, Gastrointestinal Anemia, Iron-Deficiency Gastric Outlet Obstruction Humans Male Middle Aged Polyps Stomach Neoplasms

Glass Fibre Reinforced Concrete Rebound Optimization

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Computer Modeling in Engineering & Sciences 2017年第2期113卷 203-218页

作者： Sadik alper YILDIZEL Muhammet Ensar YIGIT Gokhan KAPLAN Karamanoglu MehmetBey UniversityFaculty of EngineeringCivil Engineering DepartmentKaraman/T URKEY Celal Bayar University Faculty of EngineeringCivil Engineering DepartmentManisa/TURKEY Kastamonu University Kastamonu Vocational SchoolKastamonu/TURKEY

Glass fibre reinforced concrete placement technique generates losses due to rebound effects of the already sprayed concrete *** concrete amount cause a significant difference between the initial mix design and emplaced mix *** from the structural differences,it comes with a cost increase which was resulted by the splashed concrete *** factors such as viscosity and quantity of mixes dominate this rebound amount in sprayed glass fibre reinforced concrete applications depending on production technologies and processes;however,this research focuses on the spray distance and the angle of the spray gun which mainly effects the rebound amount in glass fibre reinforced concrete *** paper aims to understand the required angle and distance for glass fibre reinforced concrete mixes having on-site plastic viscosity *** fibre reinforced mixtures were also modelled with a finite element method based software and,the analysis results were compared with production line *** of the analysis and on-site studies showed a decisive correlation between,discharge distance,discharge angle and the viscosity of the concrete.

关键词： Glass fibre glass fibre reinforced concrete finite elements method spray distance spray Angle

Gastric pneumatosis intestinalis associated with malignancy:An unusual case report

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World Journal of Gastroenterology 2009年第6期15卷 758-760页

作者： Ahmet Bilici Berrin Karadag alper Doventas Mesut Seker Department of Medical Oncology Dr.Lutfi Kirdar Kartal Education and Research HospitalKartal 34210 IstanbulTurkey Department of Internal Medicine Sisli Etfal Education and Research Hospital34210 IstanbulTurkey Department of Internal Medicine Istanbul Education and Research Hospital34210 IstanbulTurkey

Pneumatosis intestinalis(PI)is an uncommon disease defined as gas-filled cysts that are found in the wall of the gastrointestinal(GI)*** exact causes of PI are still unclear,but it may associated with coexisting diseases,such as some GI disorders,connective tissue disease,some medication and drugs,and rarely *** most common localization is the small *** PI secondary to malignancy has been rarely *** report on a 94-year- old man with gastric PI associated with inoperable adenocarcinoma localized in the *** the gastrojejunostomy and choledochojejunostomy bypass,his general condition improved and PI disappeared,but he died due to poor performance status and malignancy 6 mo *** suggest that in patients presenting with PI,malignancy should be considered in the differential diagnosis.

关键词： Pneumatosis intestinalis Malignancy Adenocarcinoma