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      • KCI등재

        Polydipsia as a Precursor of Manic Episode in Bipolar Affective Disorder Patients with Alcohol Use Disorder

        Mehmet Emin Ceylan,Bariş Önen Ünsalver,Alper Evrensel 대한정신약물학회 2018 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.16 No.1

        Bipolar affective disorder (BD) diagnosis and initiation of appropriate treatment are often delayed, and this is associated with poorer outcomes, such as rapid cycling or cognitive decline. Therefore, identifying certain warning signs of a probable successive episode during the inter-episode phase is important for early intervention. We present the retrospective data of three cases of BD. Our first case had a history of alcohol use disorder (AUD), where he drank in a dipsomaniac manner, and the other two cases had dipsomaniac alcohol use before their manic attacks, and none of them had any AUD after the mood episode was over. Two brothers also had hypertensive episodes during the manic attacks. None of the cases reported increased fluid intake when they were euthymic. We suggest that polydipsia in BD may be a warning sign of an upcoming manic episode, especially in those patients with AUD. Polydipsia in BD may be caused or facilitated by a combination of hyperdopaminergic activity, hypothalamic dysfunction, and dysregulated renin-angiotensin system. To be able to prevent new episodes, a patient’s drinking habits and change in fluid intake should be asked at every visit. Those patients with a history of alcohol abuse should especially be informed about polydipsia and manic episode association.

      • KCI등재

        Failure load prediction of adhesively bonded GFRP composite joints using artificial neural networks

        Bahadır Birecikli,Ömer Ali Karaman,Selahattin Bariş Çelebi,Aydın Turgut 대한기계학회 2020 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.34 No.11

        There are different process parameters of bonding joints in the literature. The main objective of the paper was to investigate the effects of bonding angle, composite lay-up sequences and adherend thickness on failure load of adhesively bonded joints under tensile load. For this aim, the joint has four types of the bonding angles 30°, 45°, 60° and 75°. Composite materials have three different lay-up sequences and various thicknesses. The bonding angle, adherend thickness and composite lay-up sequences lead to an increase of the failure load. Moreover, artificial neural network that utilized Levenberg-Marquardt algorithm model was used to predict failure load of bonding joints. Mean square error was put into account to evaluate productivity of ANN estimation model. Experimental results have been consistent with the predicted results obtained with ANN for training, validation and testing data set at a rate of 0.998, 0.997 and 0.998 respectively.

      • KCI등재

        Effect of fruit host on wing morphology in Drosophila suzukii (Diptera: Drosophilidae): A first view using geometric morphometrics

        Ivana Pajač Živković,Darija LEMIC,Aleksandar MEŠIĆ,Božena BARIĆ,Rodrigo ÓRDENES,Hugo A. BENÍTEZ 한국곤충학회 2018 Entomological Research Vol.48 No.4

        The invasive alien fruit pest Drosophila suzukii, (Matsumura 1931) causes economic loss in soft‐skinned fruit production across Europe. After its first detection in 2008, the species has successfully expanded to a wide geographic area and invaded new host plants in a relatively short period of time. The aim of the present study was to analyze the connection between food preferences as host specialization and the morphology of D. suzukii. Population morphological variation in wings was investigated in two different host fruits (grape and strawberry) in which economic damage has been recorded. The geometric morphometric results revealed two noticeable wing shape morphotypes in D. suzukii (i.e. vein configuration) between the grape and strawberry fruits. Flies reared in grapes had wider wings, whereas flies grown in strawberries had more narrow wings. These differences in morphotype could be explained by the effects of wing aerodynamics, which affect the strength of the wings in flight. This, in turn, can lead to better dispersion within the associated fruit host. These results confirm that this extremely invasive species, found worldwide, is successful at spreading in part because of its potential to adapt rapidly under different rearing conditions. Therefore, adaptive variations in the wing shape of D. suzukii can be used to differentiate populations based on food preference (e.g. soft fruits) and can serve as an additional tool for detecting different bioecological types of D. suzukii.

      • SCIESCOPUSKCI등재

        Hydrodynamics of single-deadrise hulls and their catamaran configurations

        Bari, Ghazi S.,Matveev, Konstantin I. The Society of Naval Architects of Korea 2017 International Journal of Naval Architecture and Oc Vol.9 No.3

        Asymmetric planing hulls are often used on high-speed catamarans. In this study, a linearized potential-flow method is applied for modeling steady hydrodynamics of single asymmetric hulls and their catamaran setups. Numerical results are validated with available experimental data and empirical correlations. Parametric calculation results are presented for the lift coefficient and the center of pressure for variable hull geometry, spacings, and speed regimes. The lift coefficient is found to increase at smaller hull spacings and decrease at higher Froude numbers and higher deadrise angles.

      • KCI등재

        Uncharacteristic foreign policy behavior: Sharon’s decision to withdraw from Gaza

        Baris Kesgin 한국외국어대학교 국제지역연구센터 2019 International Area Studies Review Vol.22 No.1

        When leaders depart from their long-held, publicly known policy positions, one possible explanation is changes in their personality. This paper inquires about one example: Ariel Sharon’s withdrawal from the Gaza Strip. Middle East observers long believed that Sharon was one of the last Israelis to cede any territory to Palestinians; alas, that became the decision to mark Sharon’s reign as prime minister. The “bulldozer” decided to evacuate the homes he had built. Assuming that Gaza disengagement implied a significant reassessment of Sharon’s previously held policy preferences, this paper asks if Sharon changed. Using leadership trait analysis, the paper develops two profiles of Sharon, before and during his premiership. Sharon is then profiled in three phases during his tenure: first term, second term until the announcement of disengagement, and until the end of his tenure. In making his decision, Sharon temporarily became a complex thinker, yet did not change in his distrust or develop empathy to the Palestinians. The findings suggest that leaders can experience a fundamental but temporary change to implement radically different decisions, and confirm that leaders’ traits are stable over time.

      • KCI등재

        Structural, Mechanical and Magnetic Properties of Fe – 40-at.% Al Powders during Mechanical Alloying

        Baris Avar,Musa Gogebakan,Sadan Ozcan,Suleyman Kerli 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.65 No.5

        Nanocrystalline Fe – 40at.% Al alloy powders were prepared by using a mechanical alloying (MA)process with a planetary high-energy ball mill. The structural and the morphological propertiesof the powders were investigated by means of X-ray diffraction (XRD), and scanning electronmicroscopy (SEM), respectively. A disordered Fe(Al) solid solution with bcc crystal structure wasformed after 10 h of MA. Longer MA durations introduced ordering in the alloyed powders. Thefinal crystallite size was found to be as small as 5 nm whereas the internal strain was found toreach a final value of 2.1%. Also, the lattice parameter quickly increased to a maximum value of0.2926 nm at 30 h of MA, and then decreased to a value of 0.2873 at 80 h of MA. SEM resultsshowed variations in the shapes and the sizes of the particles in the powders at different stages. Furthermore, the microhardness values were found to increase gradually with increasing MA timedue to work hardening, grain refinement and solid-solution formation. Magnetic properties such asthe saturation magnetization (Ms) and the coercive field (Hc) were calculated from the hysteresisloops, and the results are presented as functions of the MA time.

      • SCOPUSKCI등재

        Radiographic evaluation of the symphysis menti as a donor site for an autologous bone graft in pre-implant surgery

        Bari, Roberto Di,Coronelli, Roberto,Cicconetti, Andrea Korean Academy of Oral and Maxillofacial Radiology 2013 Imaging Science in Dentistry Vol.43 No.3

        Purpose: This study was performed to obtain a quantitative evaluation of the cortical and cancellous bone graft harvestable from the mental and canine regions, and to evaluate the cortical vestibular thickness. Materials and Methods: This study collected cone-beam computed tomographic (CBCT) images of 100 Italian patients. The limits of the mental region were established: 5 mm in front of the medial margin of each mental foramen, 5 mm under the apex of each tooth present, and above the inferior mandibular cortex. Cortical and cancellous bone volumes were evaluated using SimPlant software (SimPlant 3-D Pro, Materialize, Leuven, Belgium) tools. In addition, the cortical vestibular thickness (minimal and maximal values) was evaluated in 3 cross-sections corresponding to the right canine tooth (3R), the median section (M), and the left canine tooth (3L). Results: The cortical volume was $0.71{\pm}0.23mL$ (0.27-1.96 mL) and the cancellous volume was $2.16{\pm}0.76mL$ (0.86-6.28 mL). The minimal cortical vestibular thickness was $1.54{\pm}0.41mm$ (0.61-3.25 mm), and the maximal cortical vestibular thickness was $3.14{\pm}0.75mm$ (1.01-5.83 mm). Conclusion: The use of the imaging software allowed a patient-specific assessment of mental and canine region bone availability. The proposed evaluation method might help the surgeon in the selection of the donor site by the comparison between bone availability in the donor site and the reconstructive exigency of the recipient site.

      • Survey on Nucleotide Encoding Techniques and SVM Kernel Design for Human Splice Site Prediction

        Bari, A.T.M. Golam,Reaz, Mst. Rokeya,Choi, Ho-Jin,Jeong, Byeong-Soo Korean Society for Bioinformatics 2012 Interdisciplinary Bio Central (IBC) Vol.4 No.4

        Splice site prediction in DNA sequence is a basic search problem for finding exon/intron and intron/exon boundaries. Removing introns and then joining the exons together forms the mRNA sequence. These sequences are the input of the translation process. It is a necessary step in the central dogma of molecular biology. The main task of splice site prediction is to find out the exact GT and AG ended sequences. Then it identifies the true and false GT and AG ended sequences among those candidate sequences. In this paper, we survey research works on splice site prediction based on support vector machine (SVM). The basic difference between these research works is nucleotide encoding technique and SVM kernel selection. Some methods encode the DNA sequence in a sparse way whereas others encode in a probabilistic manner. The encoded sequences serve as input of SVM. The task of SVM is to classify them using its learning model. The accuracy of classification largely depends on the proper kernel selection for sequence data as well as a selection of kernel parameter. We observe each encoding technique and classify them according to their similarity. Then we discuss about kernel and their parameter selection. Our survey paper provides a basic understanding of encoding approaches and proper kernel selection of SVM for splice site prediction.

      • SCIESCOPUSKCI등재

        MORPHISMS OF VARIETIES OVER AMPLE FIELDS

        Bary-Soroker, Lior,Geyer, Wulf-Dieter,Jarden, Moshe Korean Mathematical Society 2018 대한수학회보 Vol.55 No.4

        We strengthen a result of Michiel Kosters by proving the following theorems: (*) Let ${\phi}:W{\rightarrow}V$ be a finite surjective morphism of algebraic varieties over an ample field K. Suppose V has a simple K-rational point a such that $a{\not\in}{\phi}(W(K_{ins}))$. Then, card($V(K){\backslash}{\phi}(W(K))$ = card(K). (**) Let K be an infinite field of positive characteristic and let $f{\in}K[X]$ be a non-constant monic polynomial. Suppose all zeros of f in $\tilde{K}$ belong to $K_{ins}{\backslash}K$. Then, card(K \ f(K)) = card(K).

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