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Search Results: 1 - 10 of 725 matches for " Eiki Honda "
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Safe Hydroformylation of Aliphatic Alkene in a Flow Reactor  [PDF]
Hisashi Masui, Eiki Honda, Sakura Niitsu, Mitsuru Shoji, Takashi Takahashi
International Journal of Organic Chemistry (IJOC) , 2018, DOI: 10.4236/ijoc.2018.81009
Abstract: Despite hydroformylation being a very efficient method for the transformation of alkenes, it is not commonly employed in laboratories owing to the flammable/toxic nature of hydrogen and carbon monoxide gases and the necessity of high-pressure equipment in a batch system. Flow chemistry often raises the safety profiles against high-pressure and toxic gases because the diameter of the flow reactor is small. Herein, we show that aliphatic alkenes can be safely hydroformylated in a flow reactor. In our flow method, although the target hydroformylated product was obtained in a low yield (19%), toxic gases were safely treated using a flow reactor. Better yields could possibly be achieved by recycling of the unreacted alkene.
Transient Carrier Dynamics in a Mott Insulator with Antiferromagnetic Order
Eiki Iyoda,Sumio Ishihara
Physics , 2013, DOI: 10.1103/PhysRevB.89.125126
Abstract: We study transient dynamics of hole carriers injected at a certain time into a Mott insulator with antiferromagnetic long range order. This is termed ``dynamical hole doping" as contrast with chemical hole doping. Theoretical framework for the transient carrier dynamics are presented based on the two dimensional $t-J$ model. Time dependences of the optical conductivity spectra as well as the one-particle excitation spectra are calculated based on the Keldysh Green's function formalism at zero temperature combined with the self-consistent Born approximation. At early stage after dynamical hole doping, the Drude component appears, and then incoherent components originating from hole-magnon scatterings start to grow. Fast oscillatory behavior due to coherent magnon, and slow relaxation dynamics are confirmed in the spectra. Time profiles are interpreted as that doped bare holes are dressed by magnon clouds, and are relaxed into spin polaron quasi-particle states. Characteristic relaxation times for Drude and incoherent peaks strongly depend on momentum of a dynamically doped hole, and the exchange constant. Implications to the recent pump-probe experiments are discussed.
Empirical Analysis for High Quality Software Development  [PDF]
Naomi Honda, Shigeru Yamada
American Journal of Operations Research (AJOR) , 2012, DOI: 10.4236/ajor.2012.21004
Abstract: It remains important for a development organization to configure a software process that enables it to develop software products with the least possible number of defects after shipment. A development organization of CMMI level 5 has, over three years, been strived to improve those software projects that had been noted as having many defects after shipment. In this paper, we discuss our organization’s improvement (Kaizen) activities, to analyze the important matters of software process to be considered when developing a software product with the least possible number of defects after shipment. Our results are identified by three important points; 1) early ensured quality by defect detection during design or code review; 2) quality assurance for both process quality and product one; and 3) quantitative management by which data of the appropriate resolution can be collected at an appropriate timing.
Concept Development and Implementation of Family Care/Caring Theory in Concentric Sphere Family Environment Theory  [PDF]
Naohiro Hohashi, Junko Honda
Open Journal of Nursing (OJN) , 2015, DOI: 10.4236/ojn.2015.59078
Abstract: Caring is directed toward a variety of things. One of them is thought to be the concept of “family caring” aimed at families. This study attempts to clarify family caring and develop Family Care/ Caring Theory (FCCT), with the aim of implementing it in conjunction with an existing family nursing theory, the Concentric Sphere Family Environment Theory (CSFET). In Japan and in Hong Kong, family ethnography (including formal interviews) was conducted. As a result, the item “family health care nurses and their colleagues” was added to the family external environment of the CSFET. In the family environment, evidence was obtained to the effect that the family system unit is cared for by the nursing professional, and conversely the family system unit cares for the nursing professional, in a circular transaction. Observing the two-dimensional plane formed by the structural distance and functional distance, family caring assumes a structure of concentric circles, and according to transactions, the structural distance and functional distance between the nursing professional and family system unit are gradually approached, and through deepening of mutual trust maintain an appropriate distance. Moreover observing the three-dimensional space-time continuum which is created through addition of the temporal distance, family caring forms a helical structure. As transactions are repeated along the temporal axis, the family system unit’s self-actualization of other individuals and the self-actualization of the nursing professional are realized. Through these processes, a family care/caring relationship is reinforced and established. This is the concept of FCCT. Through future utilization in clinical settings this will be empirically substantiated, and it will be necessary to continue making creative corrections and revisions.
The Changes in the Neck Meridian Test Scores Induced by Self-Administered Acupressure: A Secondary Analysis of Data from a Randomized Controlled Trial of Self-Administered Acupressure  [PDF]
Satoshi Horiuchi, Yasuhiro Honda
Chinese Medicine (CM) , 2017, DOI: 10.4236/cm.2017.81002
Abstract: In the neck meridian test, the examinee stretches his or her neck in four directions and rates the intensity of pain and/or symptoms on a four point Likert scale. The four responses are summed to calculate the test score. This study conducted secondary analyses of data from a randomized controlled trial of self-administered acupressure. The study aimed to examine the change of the neck meridian test score induced by self-administered acupressure. The data of 54 (male, n = 34; female, n = 20) students, who were randomly assigned to an intervention group (IG) and a control group (CG), were subjected to secondary analyses. The IG participants were asked to complete a self-administered acupressure intervention for two weeks; the CG participants were not. In the IG, the perceived stress decreased significantly over time, while the neck meridian test score decreased significantly; in contrast, this score increased in the CG. A significant positive correlation was found between the changes in the perceived stress and neck meridian test scores. These results supported validity of the neck meridian test as a tool for assessing perceived stress.
O conceito freudiano de puls?o (Trieb) e algumas de suas implica??es epistemológicas
Honda, Helio;
Fractal : Revista de Psicologia , 2011, DOI: 10.1590/S1984-02922011000200012
Abstract: the article analyzes the concept of instinct [trieb] and discusses some of the epistemological implications to the status of psychoanalysis. such implications would be directly related to 1) the demarcation of a field of study, the psychoanalytic field itself, 2) the nature of the phenomena that inhabit the land so marked, and which therefore has to do 3) with the epistemological status of psychoanalysis as a scientific and autonomous discipline, including independent of other psychologies. the analysis is focused on the meaning of the instinct as a psychical representative of the stimuli that comes from inside the body, in order to highlight the main erogenous nature of psychic reality.
O estatuto conceitual do inconsciente em Freud e algumas de suas implica es para a prática psicanalítica
Helio Honda
ágora: Estudos em Teoria Psicanalítica , 2013,
Abstract: Trata-se da rela o entre clínica e metapsicologia, tomando como objeto de análise as bases metodológicas que articulam o conceito de inconsciente e a prática clínica nele fundada. O psiquismo inconsciente, entendido como objeto da psicanálise, só pode ser apreendido pela trama científico-conceitual forjada por Freud, a metapsicologia. Nessa perspectiva, a orienta o da prática psicanalítica dependeria da concep o que o analista tem do inconsciente. Conceptual status of the unconscious in Freud and some of its implications for psychoanalytic practice. The article deals with the relationship between clinical and metapsychology, taking as object of analysis the methodological bases that articulate the concept of the unconscious and clinical practice based on it. It is argued that the unconscious psychism understood as the object of psychoanalysis, can only be apprehended by the scientific and conceptual network constructed by Freud, the metapsychology. From this perspective, the stance of psychoanalytic practice would depend on the conception that the analyst has of the unconscious.
1H-MAS-NMR Chemical Shifts in Hydrogen-Bonded Complexes of Chlorophenols (Pentachlorophenol, 2,4,6-Trichlorophenol, 2,6-Dichlorophenol, 3,5-Dichlorophenol, and p-Chlorophenol) and Amine, and H/D Isotope Effects on 1H-MAS-NMR Spectra
Hisashi Honda
Molecules , 2013, DOI: 10.3390/molecules18044786
Abstract: Chemical shifts (CS) of the 1H nucleus in N···H···O type hydrogen bonds (H-bond) were observed in some complexes between chlorophenols [pentachlorophenol (PCP), 2,4,6-tricholorophenol (TCP), 2,6-dichlorophenol (26DCP), 3,5-dichlorophenol (35DCP), and p-chlorophenol ( pCP)] and nitrogen-base (N-Base) by solid-state high-resolution 1H-NMR with the magic-angle-spinning (MAS) method. Employing N-Bases with a wide range of p K a values (0.65–10.75), 1H-MAS-NMR CS values of bridging H atoms in H-bonds were obtained as a function of the N-Base’s p K a. The result showed that the CS values were increased with increasing p K a values in a range of Dp K a < 0 [Dp K a = p K a(N-Base) - p K a(chlorophenols)] and decreased when Dp K a > 2: The maximum CS values was recorded in the PCP (p K a = 5.26)–4-methylpyridine (6.03), TCP (6.59)–imidazole (6.99), 26DCP (7.02)–2-amino-4-methylpyridine (7.38), 35DCP (8.04)–4-dimethylaminopyridine (9.61), and pCP (9.47)–4-dimethylaminopyridine (9.61) complexes. The largest CS value of 18.6 ppm was recorded in TCP–imidazole crystals. In addition, H/D isotope effects on 1H-MAS-NMR spectra were observed in PCP–2-amino-3-methylpyridine. Based on the results of CS simulation using a B3LYP/6-311+G** function, it can be explained that a little changes of the N–H length in H-bond contribute to the H/D isotope shift of the 1H-MAS-NMR peaks.
Successful Treatment of Methimazole-Induced Severe Aplastic Anemia by Granulocyte Colony-Stimulating Factor, Methylprednisolone, and Cyclosporin
Munehiro Honda
ISRN Endocrinology , 2011, DOI: 10.5402/2011/732623
Graphical Classification of Entangled Qutrits
Kentaro Honda
Electronic Proceedings in Theoretical Computer Science , 2012, DOI: 10.4204/eptcs.95.11
Abstract: A multipartite quantum state is entangled if it is not separable. Quantum entanglement plays a fundamental role in many applications of quantum information theory, such as quantum teleportation. Stochastic local quantum operations and classical communication (SLOCC) cannot essentially change quantum entanglement without destroying it. Therefore, entanglement can be classified by dividing quantum states into equivalence classes, where two states are equivalent if each can be converted into the other by SLOCC. Properties of this classification, especially in the case of non two-dimensional quantum systems, have not been well studied. Graphical representation is sometimes used to clarify the nature and structural features of entangled states. SLOCC equivalence of quantum bits (qubits) has been described graphically via a connection between tripartite entangled qubit states and commutative Frobenius algebras (CFAs) in monoidal categories. In this paper, we extend this method to qutrits, i.e., systems that have three basis states. We examine the correspondence between CFAs and tripartite entangled qutrits. Using the symmetry property, which is required by the definition of a CFA, we find that there are only three equivalence classes that correspond to CFAs. We represent qutrits graphically, using the connection to CFAs. We derive equations that characterize the three equivalence classes. Moreover, we show that any qutrit can be represented as a composite of three graphs that correspond to the three classes.
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