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Search Results: 1 - 10 of 1271 matches for " Masayuki Sugie "
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Clinical and Radiological Features in the Cases with Cryptogenic Brain Abscess in Association with Patent Foramen Ovale: A Case Report and Review of the Literature  [PDF]
Masayuki Sugie, Takahiro Jimi, Yojiro Kashimura, Hiroo Ichikawa
International Journal of Clinical Medicine (IJCM) , 2014, DOI: 10.4236/ijcm.2014.521178
Brain abscesses are commonly associated with cranial trauma, a contiguous focus of infection, or hematogenous spread from a distant focus. However, no predisposing factors are identified in approximately 4% of the cases, being recognized as a cryptogenic brain abscess (CBA). Here we report a patient with a CBA in the left occipital lobe presumably caused by a periodontal disease. The patient displayed a patent foramen ovale (PFO), through which a spontaneous right-to-left shunt was revealed with transesophageal echocardiography. A literature review indicated that in contrast to cases of general brain abscesses, patients with CBA were older and mostly had dental disorders represented by periodontal diseases and a large PFO. In these patients, the abscess was located predominantly in the posterior circulation area, and their prognosis was worse than that of general cases. Consequently, we emphasize the significance of screening for PFO in cases of advanced age with CBA in the posterior circulation region. Furthermore, to avoid neurological sequelae, we suggest immediate surgical drainage with antibiotic administration and maintenance of oral hygiene.
Sugie Prawono
Civil Engineering Dimension , 1999,
Abstract: Existing theories of stress distribution in a homogeneous soil do not consider the effect of soil density, even though the density test is always used to check the quality of compacted fill. It is always assumed that a surface load is distributed in the soil beneath the foundation through an angle of distribution from the vertical direction. The purpose of this research is to check the relationship of the density and thickness of a filling material to the angle of distribution. Results of this investigation concluded that the angle of distribution will increase if the compacted soil was made more compact in a reduced thickness. Effect of soil density is more dominant compared to the thickness of the fill Abstract in Bahasa Indonesia : Teori distribusi tegangan dalam tanah yang homogen tidak memperhitungkan pengaruh kepadatan tanah, sedangkan metode perbaikan tanah dengan urugan justru mengandalkan kepadatan tanah urugan ini. Distribusi tegangan dalam tanah dapat dianggap sebagai hasil penyebaran beban melalui suatu sudut penyebaran tertentu, yang diukur terhadap sumbu vertikal. Penelitian ini bertujuan untuk mengetahui hubungan kepadatan dan tebal suatu tanah urug dengan sudut penyebaran tersebut. Hasil penelitian menyimpulkan bahwa sudut penyebaran (a) makin besar bilamana kepadatan tanah urug (gdry) ditingkatkan dan tebalnya dikurangi. Pengaruh kepadatan terhadap sudut penyebaran lebih dominan daripada ketebalan
Dirac Coupled Channel Analyses of the 2$^-$ Gamma Vibrational band excitation in $^{20}$Ne
Sugie Shim
Physics , 2014, DOI: 10.3938/jkps.65.1179
Abstract: Dirac coupled channel analyses are performed using optical potential model for the high-lying excited states that belong to the 2$^-$ gamma vibrational band at the 800 MeV unpolarized proton inelastic scatterings from $^{20}$Ne. The first order vibrational collective models are used to obtain the transition optical potentials to describe the high-lying excited vibrational collective states and Lorentz-covariant scalar and time-like vector potentials are used as direct optical potentials. The complicated Dirac coupled channel equations are solved phenomenologically to reproduce the differential cross sections data by varying the optical potential and deformation parameters using minimum chi-square method. It is found that relativistic Dirac coupled channel calculation could describe the excited states of the 2$^-$ gamma vibrational band in $^{20}$Ne much better than the nonrelativistic coupled channel calculation, especially for the 2$^-$ and 3$^-$ states of the band. It is shown that the multistep excitation process via channel coupling with the $3^-$ state is essential to describe the $2^-$ state excitation and pure direct transition from the ground state is dominant for the 3$^-$ state excitation of the 2$^-$ gamma vibrational band in $^{20}$Ne.
Dirac Coupled Channel Analyses of Proton Inelastic Scattering from $^{40}$Ar Nucleus
Sugie Shim
Physics , 2015,
Abstract: 0.8 GeV proton inelastic scatterings from $^{40}$Ar nucleus are analyzed using an optical potential model in the Dirac coupled channel formalism. A rotational collective model is used to obtain the transition optical potentials for the low lying excited states of the rotational band. The optical potential parameters of a Woods-Saxon shape and the deformation parameters of the excited states are searched phenomenologically to reproduce the experimental differential cross-section data by using the sequential iteration method. The effect of a multistep process is investigated by including the channel coupling between two excited states in addition to the couplings between the ground state and the excited states. The calculated deformation parameters of the excited states are compared with those obtained by using the nonrelativistic calculations. The results of the Dirac coupled channel calculations are found to show pretty good agreements with the experimental data of the ground state and the low-lying excited states. The multistep excitation process via the channel coupling with the second $2^+$ state is found to be important for the excitation of the $4^+$ state at the inelastic scatterings from the deformed nucleus, $^{40}$Ar.
Dirac Coupled Channel Analyses of Proton Inelastic Scatterings from s-d Shell Nuclei  [PDF]
Sugie Shim, Moon-Won Kim, Young-You Kim
Journal of Applied Mathematics and Physics (JAMP) , 2015, DOI: 10.4236/jamp.2015.34056

Proton inelastic scatterings from several s-d shell nuclei are analyzed using optical potential model and collective model in Dirac coupled channel formalism. The optical potential parameters obtained phenomenologically for the scatterings from the s-d shell nuclei are compared with each other for systematic Dirac analysis. Dirac equations are reduced to the second-order differential equations in order to obtain the Schroedinger equivalent effective central and spin-orbit optical potentials, and the surface-peaked phenomena are observed at the real effective central potentials for the scatterings from 22Ne, 20Ne and 24Mg. By analyzing the obtained effective spin-orbit potentials, it is confirmed that the spin-orbit interaction is a surface-peaked interaction. The first-order rotational collective models are used to describe the low-lying excited states of the ground state rotational bands in the s-d shell deformed nuclei, and the obtained deformation parameters are analyzed by comparing with each other, and compared with those obtained by using the nonrelativistic calculations. The obtained deformation parameters of Dirac phenomenological calculations for the s-d shell nuclei are found to agree pretty well with those of the nonrelativistic calculations using the same Woods-Saxon potential shape, even though the theoretical bases are quite different.

Self Assembly of Honeycomb TiO2 Coatings by Tea-Leaf Extracts as the Dispersoids  [PDF]
Masayuki Kamei
World Journal of Condensed Matter Physics (WJCMP) , 2011, DOI: 10.4236/wjcmp.2011.13010
Abstract: Photo catalytic TiO2 coatings with well defined honeycomb structure were successfully self-assembled on glass substrates by a simple “dip and burn solgel method“. The crux of this new method is that the starting material for the sol-gel coating (the water solution of ammonium titanium citrate) was “doped” with “tea-leaf extracts”. Tea-leaf extracts were completely dissolved in the water solution of ammonium titanium citrate and nucleate uniformly during the drying procedure of the coating precursor formation. This uniformly dispersed nucleation of the “tea-leaf extracts (tannin, catechin…)” were extracted during calcinations and leaving honeycomb-cell like nano-structure in the TiO2 coatings. Self-assembled cells were uniformly distributed in the TiO2 coatings and the diameter of the cells was in the range of 200 - 1000 nm. Fine honeycomb structures were clearly observed with microscopic observations.
A Pure Theory of Aggregate Price Determination  [PDF]
Masayuki Otaki
Theoretical Economics Letters (TEL) , 2011, DOI: 10.4236/tel.2011.13026
Abstract: This article considers aggregate price determination related to the neutrality of money. When the true cost of living can be defined as a function of prices in an overlapping generations (OLG) model, the marginal cost of a firm depends solely on the current and future prices. Thus, the sequence of equilibrium price becomes independent of the quantity of money. Hence, money becomes non-neutral. However, when people hold the extraneous belief that prices increases proportionately with money, this belief becomes self-fulfilling as long as the increment of money and true cost of living are low enough to guarantee full employment.
Sensitive and Reproducible Photocatalytic Activity Evaluation Instrument for Transparent Coatings  [PDF]
Masayuki Kamei
World Journal of Condensed Matter Physics (WJCMP) , 2012, DOI: 10.4236/wjcmp.2012.21008
Abstract: A new photocatalytic activity (PC) measurement instrument based on the measurement of the photo-induced reduction of Ag ions was proposed. The feature of this system is to perform “ultraviolet irradiation for PC activation” and “Ag film thickness determination for PC evaluation” simultaneously and automatically. Realizing a PC measurement system with high sensitivity, wide dynamic range, easy operation and reproducibility, which is especially suited for the PC measurement of the coatings on transparent substrates.
The Role of Money: Credible Asset or Numeraire?  [PDF]
Masayuki Otaki
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.22031
Abstract: It is well known that money is neutral if 1) people hold the extraneous belief that it is an only numeraire and does not possess intrinstic value, and 2) new money is injected into an economy as its own interest in the OLG model under perfect information (Lucas [1] Theorem (2)). We find that whenever 1) is not satisfied and money is rationally held to have substance value, money becomes non-neutral even if we use the same model as Lucas [1].
Economic Station-Centered Network and Invisible Collaboration: A Cyclic vs. Semi-Cyclic View  [PDF]
Masayuki Matsui
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.23063
Abstract: By our past review, this paper will verify the hypothesis that the autonomous (invisible) body balancing would be better under changeable demand speed and a leading principle in the collaborative networks. This hypothesis was first utilized in the Conveyor-Serviced Production System (CSP System) with cycle time by a Station-Centered Approach to the physical networks. Recently, we are ascertaining this hypothesis in cost/profit balancing under demand speed (invisible hand) at the economic body chain networks. Generally, it becomes simpler at series (cyclic) type, but would not be so at parallel (semi-cyclic) type. Throughout this paper, we will point out the principle of autonomous (invisible) body ba-lancing by demand speed (cycle time), and would extend to a parallel (semi-cyclic) supply chain by the Station-Centered Approach. This thing would bring the invisible merit that the profit maximization occurs at the relative cost balancing of each enterprise in a series-parallel body network.
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