Operation of Faddeev-Kernel in Configuration Space

We present a practical method to solve Faddeev three-body equations at energies above three-body breakup threshold as integral equations in coordinate space. This is an extension of previously used method for bound states and scattering states below three-body breakup threshold energy. We show that breakup components in three-body reactions produce long-range effects on Faddeev integral kernels in coordinate space, and propose numerical procedures to treat these effects. Using these techniques, we solve Faddeev equations for neutron-deuteron scattering to compare with benchmark solutions.Comment: 20 pages, 8 figures, to be published in Few-Body System

ハツカダイコンの胚軸肥大成長に対するトリフルオロインドール酪酸の効果

Effects of a synthesized plant growth regulator 4,4,4–trifluoro–3–(indole–3–)–butyric acid (TFIBA) on thickening growth of radish hypocotyls were investigated. The thickening growth of radish hypocotyls, which are the edible part, was stimulated by TFIBA applied to the seeds before transplanting. The fresh weight of the hypocotyls in the seedlings treated with 10－4mol L－1 (10－4M) TFIBA solution significantly increased during cultivation in a growth chamber for 28 days as compared to that in the control. However, such significant increase was not observed in the seedlings treated with 10－5mol L－1 (10－5M) TFIBA solution. The fresh weight and maximal diameter of hypocotyls in the seedlings treated with TFIBA solution of 10－4M and 10－5M were significantly increased by 30–50 % as compared to those of the control at 35 days after transplanting when the seedlings were cultured in a green house under natural light and temperature conditions. The length of hypocotyls in the seedlings treated with 10－4M and 10－5M TFIBA increased approximately 20–50 % during the early growth stage as compared to that in the control. The fresh and dry weight of the shoots in the seedlings was apparently increased by treatment with 10－4M and 10－5M TFIBA solutions at 35 days after transplanting. These results suggest that TFIBA stimulates hypocotyl elongation and total photosynthetic activity in the shoots and results in promotion of thickening growth of the hypocotyls.ハツカダイコンの肥大成長に対する合成植物成長調節物質トリフロオロインドール酪酸（TFIBA）の効果について調べた．種子を10－4ないしは10-5M TFIBA 溶液に24時間浸漬し，発芽種子をバーミキュライトの入ったポットに移植して，14時間日長，昼夜温度23℃/18℃のグロスチャンバーで栽培すると，明らかな胚軸の肥大成長促進が認められた．肥大成長は10－4M TFIBA 処理の植物体でより顕著に現れた．同様に処理した発芽種子を自然光，無加温のガラス室で，2007年３月から４月にかけて栽培すると，胚軸の肥大成長はグロスチャンバーでの栽培に比べて，より顕著に現れた．35日目の肥大胚軸部の新鮮重は，10－4Ｍと10－5Ｍ のいずれの濃度においても30ﾝ50ｵ増加した．TFIBA処理によって生育初期段階で胚軸が20ﾝ50ｵ長くなり，また葉数が増えて地上部重が有意に重くなり，胚軸の肥大部径も有意に大きくなった．これらの結果は，TFIBA が胚軸の初期成長を促進し，生育の進行と共に光合成器官である葉組織を増加させ，胚軸の肥大成長を促進したことを示している．可食部である胚軸肥大部の形状は，ガラス室ではきれいな球状となるものが多いのに比べて，グロスチャンバーでは縦長のいびつな形をしたものが多くなった．これは，グロスチャンバーでは光量が不足し，十分な光合成産物が胚軸の肥大に供給されなかったためと考えられた． 本研究で，TFIBA を発芽時に浸漬投与するだけでハツカダイコンの可食部（胚軸）の肥大成長を有意に促進させることが明らかとなった．得られた結果は，TFIBA がハツカダイコンをはじめとする根茎野菜の生産促進に有効な植物成長調節物質であることを示している

THE TEMPORAL SEQUENCE OF JOINT KINEMATICS IN A SIDEARM THROW OF A FLYING DISC FOR DISTANCE

The aim of the present study was to quantify the temporal sequence of joint kinematics in a sidearm throw of a flying disc by skilled throwers. Seven skilled throwers used a sidearm motion to throw a flying disc as far as possible. Three-dimensional kinematics of the trunk, throwing-arm and disc were recorded using a motion capture system, and maximum linear and angular velocity of each joint and the disc were computed. The maximal linear velocity of the elbow occurred before than the maximal linear velocity of the shoulder. This sequence could be due to the timing of maximal shoulder adduction velocity, which occurred earlier than the maximal angular velocities of trunk. In conclusion, coaches and players should consider this temporal order when they technically coach the sidearm motion for disc throws

PERFECT V-A : Fortran Programs to Compute Various Properties of the Triton Wave Function Using the RSC5 Potential(Annual Report)

We present the detailed description of the auxiliary codes to PERFECT V that compute the one-body charge form factors, the percentage probabilities, the asymptotic normalization constants, the El sum rule, and the two-body correlation function of the triton wave function obtained by PERFECT V using the RSC5 potential.Triton bound stateReid soft core potentialInteracting SD-states and spectator s-d-stateOne-body charge form factorThe percentage probabilitiesThe asymptotic normalization constantsThe E1 sum ruleThe two-body correlation functio

Formulation of n-d Elastic and Breakup Reactions in Terms of the Faddeev Equation with a Local Potential

We present a heuristic description of a practical theory of n-d elastic and breakup reactions. This is a new version of our three-body theory based on the Faddeev equation with a local potential in coordinate space. We reformulate our previous treatment as legible as possible, and made the following revisions: (i) The structure of the theory is centered on the elastic part of the Faddeev wave function. The breakup components are deduced as necessary ingredients of the elastic part. (ii) Since elastic channel must contain all possible spectator partial waves, it is treated in terms of a multi-channel coupled equation. (iii) Breakup processes to two-body partial waves other than ^lS_O are treated as the perturbation. (iv) The logarithmic singularities in the Faddeev Kernel in the breakup channel are studied in detail, and a practical method of solving our key equation is suggested based on the knowledge of the singularity structure of the solution. The presentation is detailed enough so that the formulas can immediately be transcribed to suit actual coding of a computational program

Some Preliminary Studies for Treating the Three-Body Scattering Problems

As a preliminary step for handling the three-body scattering problems, here we present the following three new methods: A method of acceleration for iterative calculations, a method for treating the scattering from a non-local potential, and a method for treating the three-body breakup channel. Convergence of elastic scattering channel is studied

Attenuation of agonist-induced desensitization of the rat substance P receptor by progressive truncation of the C-terminus

AbstractWe have investigated the C-terminal tail of the rat substance P receptor (SPR) as a domain essential for agonist-induced desensitization. Four progressively shorter mutants, using premature termination in the C-terminus, were constructed and compared with the unaltered SPR using ectopic expression of wild-type and mutant receptors in Xenopus oocytes. These mutants were designated D16, D47, D70 and D96 with 16, 47, 70 and 96 amino acids residues deleted from the tail, respectively. Wild type SPR, D16 and D47 exhibited normal current responses when challenged with substance P, but D70 and D96 had reduced maximal current responses (70% and 5% of wild type SPR, respectively). D70, however, exhibited substantial resistance to substance P-induced desensitization in that 55%, versus 8% for wild type SPR, of the peak current of the first response was preserved on second challenge with substance P. Therefore, a domain from residues 338 to 360 of the rat SPR, though not necessary for the functional activity of the receptor, plays an essential role in agonist-induced desensitization

Simulation of CO2 and CH4 seasonal cycles in Siberia

第6回極域科学シンポジウム分野横断セッション：[IA] 急変する北極気候システム及びその全球的な影響の総合的解明―GRENE北極気候変動研究事業研究成果報告2015―11月19日（木）　国立極地研究所 2階 大会議