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Search Results: 1 - 10 of 3647 matches for " Kenkichi Takahashi "
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Determination of phi1_eff (beta_eff) by B0 -> K+K-K0S, pi+pi-K0S and K0SK0SK0S decays
Kenkichi Miyabayashi
Physics , 2011,
Abstract: Measurements of the CP violation parameter phi1_eff (beta_eff) by b -> s penguin mediated three-body B decays, B0 -> K+K-K0S, pi+pi-K0S and K0SK0SK0S are reviewed in this report.
Angle averages from B-factories
Kenkichi Miyabayashi
Physics , 2013,
Abstract: The most recent measurements of three CP violation angles of Kobayashi-Maskawa unitarity triangle is reviewed.
Transporter-Mediated Drug Interaction Strategy for 5-Aminolevulinic Acid (ALA)-Based Photodynamic Diagnosis of Malignant Brain Tumor: Molecular Design of ABCG2 Inhibitors
Toshihisa Ishikawa,Kenkichi Takahashi,Naokado Ikeda,Yoshinaga Kajimoto,Yuichiro Hagiya,Shun-ichiro Ogura,Shin-ichi Miyatake,Toshihiko Kuroiwa
Pharmaceutics , 2011, DOI: 10.3390/pharmaceutics3030615
Abstract: Photodynamic diagnosis (PDD) is a practical tool currently used in surgical operation of aggressive brain tumors, such as glioblastoma. PDD is achieved by a photon-induced physicochemical reaction which is induced by excitation of protoporphyrin IX (PpIX) exposed to light. Fluorescence-guided gross-total resection has recently been developed in PDD, where 5-aminolevulinic acid (ALA) or its ester is administered as the precursor of PpIX. ALA induces the accumulation of PpIX, a natural photo-sensitizer, in cancer cells. Recent studies provide evidence that adenosine triphosphate (ATP)-binding cassette (ABC) transporter ABCG2 plays a pivotal role in regulating the cellular accumulation of porphyrins in cancer cells and thereby affects the efficacy of PDD. Protein kinase inhibitors are suggested to potentially enhance the PDD efficacy by blocking ABCG2-mediated porphyrin efflux from cancer cells. It is of great interest to develop potent ABCG2-inhibitors that can be applied to PDD for brain tumor therapy. This review article addresses a pivotal role of human ABC transporter ABCG2 in PDD as well as a new?approach of quantitative structure-activity relationship (QSAR) analysis to design potent ABCG2-inhibitors.
Generation of Variations on Theme Music Based on Impressions of Story Scenes Considering Human's Feeling of Music and Stories
Kenkichi Ishizuka,Takehisa Onisawa
International Journal of Computer Games Technology , 2008, DOI: 10.1155/2008/281959
Abstract: This paper describes a system which generates variations on theme music fitting to story scenes represented by texts and/or pictures. Inputs to the present system are original theme music and numerical information on given story scenes. The present system varies melodies, tempos, tones, tonalities, and accompaniments of given theme music based on impressions of story scenes. Genetic algorithms (GAs) using modular neural network (MNN) models as fitness functions are applied to music generation in order to reflect user's feeling of music and stories. The present system adjusts MNN models for each user on line. This paper also describes the evaluation experiments to confirm whether the generated variations on theme music reflect impressions of story scenes appropriately or not.
Hydrostatics and dynamical large deviations for a reaction-diffusion model
Claudio Landim,Kenkichi Tsunoda
Mathematics , 2015,
Abstract: We consider the superposition of a symmetric simple exclusion dynamics, speeded-up in time, with a spin-flip dynamics in a one-dimensional interval with periodic boundary conditions. We prove the hydrostatics and the dynamical large deviation principle.
Conscious Sedation and Awake Fiberoptic Intubation in a Patient with Difficult Mask Ventilation—A Case Report  [PDF]
Bidur Kumar Baral, Susumu Ide, Masahiro Uzawa, Kenkichi Kiyosawa, Hiroyuki Sasaki, Mikito Kawamata
Open Journal of Anesthesiology (OJAnes) , 2015, DOI: 10.4236/ojanes.2015.59037
Abstract: Since maxillofacial malignancy is a common cause of facial defects and disfigurement of the face that may make fitting of a mask difficult and cause air leakage from the side, thus making mask ventilation difficult. In addition, distorted anatomy of the airway and base of the skull in such patients may cause difficult intubation (DI). We experienced a case with a huge facial defect due to maxillary carcinoma, in which difficult mask ventilation (DMV) and DI were predicted. After evaluation by three-dimensional airway computed tomography, the airway was secured with conscious sedation using dexmedetomidine, and awake fiberoptic intubation was safely performed. Three-dimensional airway computed tomography seems to be a good tool for successful intubation when DMV and DI are predicted.
Emotion Interference Solves Social Dilemma  [PDF]
Taiki Takahashi
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.25083
Abstract: Roles of emotion in decision-making have been attracting attention in neuroeconomics and behavioral game theory. We mathematically demonstrate that “emotion interference”, a recently-discovered psychological phenomenon [1] helps to solve social dilemma in a one-shot prisoner’s dilemma game. Furthermore, the present theory also accounts for the violation of Savage’s sure-thing principle in the prisoner’s dilemma [2]. Furthermore, it is also explained that why people in the society with higher social mobility are more cooperative. Relations of the present work to recently evolving fields of neuroeconomics and quantum decision theory are discussed.
Multiple Intelligence Theory Can Help Promote Inclusive Education for Children with Intellectual Disabilities and Developmental Disorders: Historical Reviews of Intelligence Theory, Measurement Methods, and Suggestions for Inclusive Education  [PDF]
Junichi Takahashi
Creative Education (CE) , 2013, DOI: 10.4236/ce.2013.49086
Abstract:

Inclusive education, based on the principle that all children (including those with disabilities) should receive similar education, has been recently adopted in primary and secondary schools throughout several countries. Within an inclusive education context, teachers are faced with the challenge of developing their knowledge and skills necessary to properly assess the intellectual abilities of a wide range of children. Although intelligence has been examined for over 100 years, researchers are still debating what abilities should or should not be classified as belonging to the domain of intelligence. In order to effectively apply intelligence theory and assessment methods for inclusive education, we compared traditional intelligence theory (Spearman’s two-factor model) with a more recent intelligence theory (Gardner’s multiple intelligence theory). Spearman’s theory focuses on elementary perceptual processes by using the single g factor, whereas Gardner’s theory recognizes several types of intelligence. On the basis of these reviews, we propose the utility of multiple intelligence theory for inclusive education, considering the various profiles of intelligence shown by children with intellectual disabilities and developmental disorders.

Suggestions for a Teacher Training Program for Inclusive Education in a Japanese University  [PDF]
Junichi Takahashi
Creative Education (CE) , 2013, DOI: 10.4236/ce.2013.48074
Abstract:

Inclusive education has been recently proposed in primary and secondary educations in many countries. Children who need special education support should be educated together with typically developing children in general classes. Although many studies have examined the effectiveness of inclusive education, researchers have pointed out that some general education teachers experience problems in their relationships with children who have disabilities such as developmental disorders and intellectual disabilities. In this paper, we review teacher training programs in a Japanese university and offer suggestions to enhance teachers’ relationships with disabled children. In our discussion, we focused on adult attachment theory, which is an affective connection and interactions between self and others. First, we reviewed the importance of teachers’ relationships with disabled children. Second, we reviewed attachment theories with respect to the quality of teacher-child relationships, and lastly, we proposed that adult attachment theory is a mediator in the quality of teacher-child relationships. We proposed a direction for the application of these conceptual assumptions to the teacher-training program for inclusive education in a Japanese university.

The q-Exponential Social Discounting Functions of Gain and Loss  [PDF]
Taiki Takahashi
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.43066
Abstract:

Social discounting has been attracting attention in behavioral psychology, econophysics, and neuroeconomics. Several mathematical models have been proposed for social discounting; exponential discounting, hyperbolic discounting, a q-exponential discounting model based on Tsallis’ statistics. In order to experimentally examine the mathematical characteristics of the q-exponential social discounting models for gain and loss in humans, we estimated the parameters of the q-exponential social discounting models by assessing the points of subjective equality (indifference points) at seven social distances. We observed that gain was more steeply social-discounted than loss. Usefulness of the q-exponential social discounting model in social physics, econophysics, and cultural neuroeconomics are discussed.

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