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Search Results: 1 - 10 of 329 matches for " Toshikazu Mohri "
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A New Rotator Interval Approach for Antegrade Humeral Nailing: A Technical Note  [PDF]
Naxin Liu, Toshikazu Mohri, Junzou Hayashi, Ryo Orito, Tsuyoshi Nakai, Yasushi Yoneda
Open Journal of Orthopedics (OJO) , 2014, DOI: 10.4236/ojo.2014.411049
Abstract: The lateral and anterior lateral approaches are the most commonly used for antegrade nailing of humerus fractures. However, the surgical exposure is restricted by the bony acromion. The iatrogenic injury to the rotator cuff can also cause post-operative pain and compromise shoulder function. This article describes a new rotator interval approach that we used for central entry point nailing. In this approach, the skin incision starts from the midpoint between the acromion and coracoid process. A trans-rotator interval split in front of the anterior border of the supraspinatus (SSP) tendon is then made to open the glenohumeral joint. With the SSP retracted laterally and the long head of the biceps (LHB) retracted medially, the humeral head is directly visualized. The entry point can thus be determined and confirmed by intra-operative fluoroscopy in both axial and AP planes. We recommend this rotator interval approach as an alternative nailing technique for 2-part humeral neck fractures and humeral shaft fractures.
F theory Vacua in Four Dimensions and Toric Threefolds
Kenji Mohri
Physics , 1997, DOI: 10.1142/S0217751X99000415
Abstract: We investigate D=4, N=1 F theory models realized by type IIB string compactification on toric threefolds. Massless spectra, gauge symmetries, phase transitions associated with divisor contractions and flops, and non-perturbative superpotentials are analyzed using elementary toric methods.
$N=2$ super $W$ algebra in half-twisted Landau-Ginzburg model
Kenji Mohri
Physics , 1993, DOI: 10.1142/S0217751X94002065
Abstract: We investigate $N=2$ extended superconformal symmetry, using the half-twisted Landau-Ginzburg models. The first example is the $D_{2n+2}$ -type minimal model. It has been conjectured that this model has a spin $n$ super $W$ current. We checked this by the direct computations of the BRS cohomology class up to $n=4$. We observe for $n\le 3$ the super W currents generate the ring isomorphic to the chiral ring of the model with respect to the classical product. We thus conjecture that this isomorphism holds for any $n$. The next example is $ CP_{n}$ coset model. In this case we find a sort of Miura transformation which gives the simple formula for the super W currents of spin \{1,2,...,n\} in terms of the chiral superfields. Explicit form of the super W currents and their Poisson brackets are obtained for $CP_{2},CP_{3}$ case. We also conjecture that as long as the classical product is concerned, these super W currents generate the ring isomorphic to the chiral ring of the model and this is checked for $CP_2$ model.
D-Branes and Quotient Singularities of Calabi-Yau Fourfolds
Kenji Mohri
Physics , 1997, DOI: 10.1016/S0550-3213(98)00085-6
Abstract: We investigate a (0,2) gauge theory realized on the world volume of the type IIB D1-brane at the singular point of a Calabi-Yau fourfold. It is argued that the gauge anomaly can be canceled via coupling to the R-R chiral bosons in bulk IIB string. We find that for a generic choice of the Fayet-Iliopoulos parameters on the world volume, the Higgs moduli space is a smooth fourfold birational to the original Calabi-Yau fourfold, but is not necessarily a Calabi-Yau manifold.
Residues and Topological Yang-Mills Theory in Two Dimensions
Kenji Mohri
Mathematics , 1996, DOI: 10.1142/S0129055X9700004X
Abstract: A residue formula which evaluates any correlation function of topological $SU_n$ Yang-Mills theory with arbitrary magnetic flux insertion in two dimensions are obtained. Deformations of the system by two form operators are investigated in some detail. The method of the diagonalization of a matrix valued field turns out to be useful to compute various physical quantities. As an application we find the operator that contracts a handle of a Riemann surface and a genus recursion relation.
K?hler Moduli Space of a D-Brane at Orbifold Singularities
Kenji Mohri
Mathematics , 1998, DOI: 10.1007/s002200050601
Abstract: We develop a method to analyze systematically the configuration space of a D-brane localized at the orbifold singular point of a Calabi--Yau $d$-fold of the form ${\Bbb C}^d/\Gamma$ using the theory of toric quotients. This approach elucidates the structure of the K\"ahler moduli space associated with the problem. As an application, we compute the toric data of the $\Gamma$-Hilbert scheme.
Exceptional String: Instanton Expansions and Seiberg-Witten Curve
Kenji Mohri
Mathematics , 2001, DOI: 10.1142/S0129055X02001466
Abstract: We investigate instanton expansions of partition functions of several toric E-string models using local mirror symmetry and elliptic modular forms. We also develop a method to obtain the Seiberg--Witten curve of E-string with arbitrary Wilson lines with the help of elliptic functions.
Compact Representations by Finite-State Transducers
Mehryar Mohri
Computer Science , 1994,
Abstract: Finite-state transducers give efficient representations of many Natural Language phenomena. They allow to account for complex lexicon restrictions encountered, without involving the use of a large set of complex rules difficult to analyze. We here show that these representations can be made very compact, indicate how to perform the corresponding minimization, and point out interesting linguistic side-effects of this operation.
Syntactic Analysis by Local Grammars Automata: an Efficient Algorithm
Mehryar Mohri
Computer Science , 1994,
Abstract: Local grammars can be represented in a very convenient way by automata. This paper describes and illustrates an efficient algorithm for the application of local grammars put in this form to lemmatized texts.
Concomitant therapy with pioglitazone and insulin for the treatment of type 2 diabetes
Toshikazu Yamanouchi
Vascular Health and Risk Management , 2010, DOI: http://dx.doi.org/10.2147/VHRM.S5838
Abstract: ncomitant therapy with pioglitazone and insulin for the treatment of type 2 diabetes Review (4828) Total Article Views Authors: Toshikazu Yamanouchi Published Date March 2010 Volume 2010:6 Pages 189 - 197 DOI: http://dx.doi.org/10.2147/VHRM.S5838 Toshikazu Yamanouchi Kita-Tokyo-Jueien/Department of Internal Medicine, Teikyo University, Tokyo, Japan Abstract: To prevent hyperinsulinemia, which may cause atherosclerosis, thiazolidinediones (TZDs), also known as insulin sensitizers, are often added to the therapeutic regimen of patients with type 2 diabetes who are receiving insulin. The combination of insulin with pioglitazone, a TZD, reduces glycoated hemoglobin (HbA1c) by 0.6%–2.1%. The higher the HbA1c baseline the larger the therapeutic reduction of HbA1c. This combination therapy has been shown to be beneficial even in lean Japanese patients with diabetes. It should be noted that such combination therapy is much more useful when the main clinical aim is lowering not postprandial, but fasting and nocturnal glycemia. The glycemic-lowering effects of pioglitazone alone occur slowly, whereas the addition of insulin to pioglitazone often shows a dramatic glucose-lowering effect. Thus, such combination therapy increases the possibility of frequent hypoglycemia within 1 to 2 months of combining the drugs. Severe hypoglycemia in patients using this therapy is rare. Patients treated with combination therapy who show a predominant reduction of glycemia often have severe edema; in 10%–20% of patients, combination therapy leads to drug-related congestive heart failure (CHF). However, this phenomenon is usually weakened if low doses of pioglitazone which are added to insulin therapy (ie, 15 mg/day or even 7.5 mg/day for women). It is well known that pioglitazone has an anti-atherosclerotic effect, although it is unclear if hyperinsulinemia induces atherogenic changes, either directly or indirectly, by the promotion of obesity. Until now, we have not confirmed whether the anti-atherosclerotic effects of pioglitazone exceed the supposed disadvantageous action of insulin when used in combination therapy. The addition of pioglitazone tends to reduce daily insulin dosages, but study findings have not been consistent. Improvement of lipid profiles has also been weak with this combination therapy. Long-term trials are needed before any conclusions can be reached concerning atherogenic effects of treatment for type 2 diabetes. Combination therapy of even small doses of pioglitazone with insulin should be primarily used for patients who achieve insufficient reduction in glycemia with insulin monotherapy.
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