Determination of environmental radiation at radioactive spa areas in the Sanin districts

Dose rates of environmental radiation were determined with NaI (Tl) cristal scintillation survey meter at Misasa, Sekigane and Ikeda spa areas which were known as radioactive spring in the Sanin districts. The results were as follows ; (1) Dose rates of radiation in the air of outdoor at spa areas of Misasa, Sekigane and Ikeda were 11.8±2.3μR/h, 11.3±2.1μR/h and 18.4±5.8μR/h, respectively. Dose rates of radiation in the air of these spa areas were significantly higher (P<0.01) than at none spa area of Kurayoshi city (8.6±1.2μR/h). Dose rates of radiation in the outdoor air at Misasa and Sekigane tends to increase near the spring sources. (2) In the room where spring water is not used, dose rates of radiation in the air were 9.5～10.5μR/h. Dose rates of radiation in the air of the room with facilities using spring water were determined; peloid therapy room: 13.3±0.5μR/h, Hubbard bath room : 12.5±0.4μR/h, drinking hall : 11.8±0.7μR/h, hot air bathing room : 18.2±1.7μR/h, usual bath room (Onkensen) : 13.0±1.0μR/h and bath room for patients : 17.9±1.2μR/h (males), 17.0±1.2μR/h (females), respectively. Dose rates of radiation in the air of the bath room of Gunze-hotel and Ohashi-hotel-Gankutsunoyu were 30.1±9.0μR/h and22.3±3.0μR/h, respectively. At Ikeda spa, dose rates of radiation in the air of the guest room and the bath room were range of 13.0～19.0μR/h and 14.0～23.0μR/h

Determination of copper and zinc in synovial fluid by atomic absorption spectrophotometry

Copper (Cu) and zinc (Zn) in synovial fluids of 52 patients with rheumatoid arthritis (RA) and of 53 patients with osteoarthritis (OA) were determined using a HITACHI MODEL 207 atomic absorption spectrophotometer. Standard solution of Cu and Zn were 50μg, 100μg, 200μg and 300μg per 100 ml 20 v/v % glycerine containing 0.01 N-HCl. To 0.5ml synovial fluid, 50 units of hyaluronidase was added and then the mixture were incubated for 20 minutes at 37℃. Synovial fluid treated with hyaluronidase and standard solution of Cu and Zn were diluted five fold with deionized distillation water, then aspirated directly into the burner. The relative absorbance was expressed as scale reading by a HITACHI MODEL QPD-54 recoder. The mean recovery rate of Cu and Zn in synovial fluids were 102.0% and 101.9%. By this method the concentrations of Cu and Zn in 52 RA (12 males, 40 females) were 97.6±29.0 (S.D.) μg/100 ml and 83.9±40.1 (S.D.) μg/100 ml ; 97.3±27.1 (S.D.)μg/100 ml, 78.7±29.9 (S.D.) μg /100 ml in 12males and 97.7±29.5 (S.D.) μg/100 ml, 85.5±42.6 (S.D.) μg /100 ml in 40 females respectively. The concentrations of Cu and Zn in 53 OA (14 males, 39 females) were 46.9±14.5 (S.D.) μg/100 ml and 40.8±14.3 (S.D.) μg/100 ml; 47.3±9.7 (S.D.) JLg/100 ml, 45.1±19.0 (S.D.) μg/ 100 ml in 14 males and 46.8±15.8 (S.D.) μg/100 ml, 39.3±11.8 (S.D.) μg/100 ml in 39 females respectively. No sex differences of Cu and Zn values were observed in both RA and OA. In patients with RA, concentrations of Cu and Zn in synovial fluids were signifcantly higher than in OA in both sexes. There were positive correlation between the concentrations of Cu and Zn in 105 patients (RA and OA, r=0.74, p<0.01) , in 52 RA (r=0.54, p<0.01), in 53 OA (r=0.81, p<0.01). In patients with RA, there were no correlation between stage and concentrations of Cu and Zn in synovial fluids

Quadrupole Deformation of Barium Isotopes

The B(E2:0_1^+ -> 2_1^+) values of the Ba isotopes (Z=56) exhibit a sharp increase in deformation as the neutron numbers approach the mid-shell value of N=66. This behavior is anomalous because the 2_1^+ level energies are very similar to those of the neighboring isotopes. By means of the axially-symmetric deformed Woods-Saxon (WS) hamiltonian plus the BCS method, we investigated the systematics of B(E2) of the Ba isotopes. We showed that 15% of the B(E2) values at N=66 was due to the level crossing, occurring at the deformation with beta being nearly 0.3, between the proton orbits originating from the orbits Omega=1/2^-(h11/2) and 9/2^+(g9/2) at zero deformation. The latter of these two was an intruder orbit originating from below the energy gap at Z=50, rising higher in energy with the deformation and intruding the Z=50-82 shell. These two orbits have the largest magnitude of the quadrupole moment with a different sign among the orbits near and below the Fermi surface. Occupancy and non-occupancy of these orbits by protons thus affect B(E2:0_1^+ -> 2_1^+) significantly.Comment: 10 pages, 2 figures, to be published in Phys.Lett.

Determination of copper and zinc in serum by atomic absorption spectrophotometry

Copper (Cu) and Zinc (Zn) in serum of 113 healthy controls (43 males and 70 females) and of 68 patients with rheumatoid arthritis (19 males and 49 females) were determined using a HITACHI MODEL 207 atomic absorption spectrophotometer. Wavelength and lamps current of Cu and Zn were setted at 3247 A, 2139 A, and 10mA, 9mA respectively. Flow rate of acetylene and air were setted at 3.0 l/min, and 13.0 l/min. The stock standard solutions of Cu and Zn were 0.5 mg, 1.0mg, 2.0mg and 3.0mg per 100mE in 0.01 N·HCl. For working standard solutions, these stock standard solutions were diluted to 50μg/100ml. 100μg/100ml, 200μg/100ml and 300μg/100ml with 20% glycerine. Serum and working standard so· lutions of Cu and Zn were diluted five fold with deionized distillation water, then aspirated directly into the burner. The relative absorbance was expressed as scale reading by a HITACHI MODEL QPD-54 recorder. Various acids and other elements had few influences on the determi· nations of Cu and Zn. The mean recovery rate of Cu and Zn in serum were 100.5% and 100.8% respectively. By this method, the levels of Cu and Zn in healthy controls were 103.0±14.5 (S.D.), 116.2±18.6 (S.D.) μg/100ml in males and 108.7±19.6 (S. D.), 110.3±14.7 (S.D.) μg/100ml in females respectively. No sex difference were observed. The ratio of Cu and Zn (Cu/Zn ratio) of healthy controls were 0.89±0.17 (S. D.) in males and O.99±0.25 in (S.D.) females. The sex differrences of Cu/Zn ratio were statistically significant (p<0.05). The levels of Cu and Zn in rheumatoid arthritis were 141.7±25.2 (S.D.). 89.1±14.5 (S.D.) /-Lg/100 mP and 154.l±29.7 (S.D.), 86.7±18.1 (S.D.) μg/100ml in females respectively. No sex differren· ces were observed. The Cu/Zn ratio were 1.64±0.43 (S.D.) in males and 1.82±0.48 (S.D.) in females, wich showed no sex differrences. In patients with rheumatoid arthritis, serum Cu levels were significantly higher (P<0.001) and serum Zn levels were significantly lower (P<0.001) than in healthy controls in both sexes. The Cu/Zn ratio were significantly higher (P<0.001) rheumatoid arthritis than in controls. The serum Cu in 13 of 19 males (68%), and 30 of 49 females (61 %), with rheumatoid arthritis were shown to be above the upper limit of 5% rejection limit in healthy controls. The serum Zn in 3 of 19 males (16%), and in 24 of 49 (47%) with rheumatoid arthritis were shown to be below the lower limit 5% rejection limit in healthy controIs. The Cu/Zn ratio in rheumatoid arthritis, in 14 of 19 males (74%), and in 35 of 49 females (71%) were shown to be above the upper limit of 5% rejection limit in healthy of males and females. So, differences in Cu/Zn ratio between healthy controls and rheumatoid arthritis were proved to be more pronounced

Sequential decay in the 12C+16O-->12C+12C+alpha reaction

二つの原子核の衝突によってまずその二つの複合した系が生成され，次いでこれがいくつかの原子核に崩壊してゆく。本論文はまず崩壊遇程について詳細にしらべ，崩壊過程の途中にあらわれる原子核の状態を明らかにし，この性質を利用してさかのぼって複合系にメスを入れ得ることを示したものである。そして重イオン入射を用いたことは，従来多く行われてきた軽イオン入射では殆んど解明が困難であった角運動量の大きい状態の関与，容易に把握できることの予見に基ずいている。　方法は次のようである。すなわち筑波大学加速器センターのペレトロン・タンデム加速装置から得られる6価の酸素イオンを，薄い炭素膜に照射し，反応の後，放出される2個の炭素イオンを，2個の独立の検出器および粒子識別回路系を用いて検出し，これらの間の同時計数を測定した。検出器にはシリコン半導体検出器によるカウンターテレスコープを用い，その信号を粒子識別回路に加えることによって炭素イオン以外の反応生成核を除去した。このように2個の検出器系を用いるとき，従来非常に多く行われてきた1個の検出器系が未知のパラメーターを残すのにくらべて，運動学上のパラメーターをすべて知ることができるので完全実験とよばれている。　著者の得た第一の成果は。複合系26Siからの直接の三体12C+12C+αへの崩壊は10％以下であり，大部分は途中で16O*を経由する 12C+16O→12C＋16O* [?] 12C+αで示される継続崩壊であるということである。そしてこの続崩壌に関与した途中の原子核16O*は，「励起エネルギー10.34MeV，角運動量4，バリティー正」，「励起エネルギー14.82MeV，角運動量6，バリティー正」の状態が際立っており，「励起エネルギー16.22MeV，角運動量6，バリティー正」の状態も含まれている。上記の際立った2つの状態はアルファクラスター模型で良く説明できる状態，すなわち12Cとα粒子が2原子分子のような結合をしていると考えられる状態であることが要点の一つである。このほか継続崩壊に関して，等しい角運動量6と同じ正バリティーをもつ14.82MeVと6.22MeVが顕著に異なった崩壊をすることが明らかになっており。原子核の励起状態の配位の識別に有効な根拠を与えることができた。　第二の成果は複合系28Siそのものについて。既述の継続崩壊の成果を下敷にして，すなわち際立った2つの16O*に着目しながら12C+16O反応の励起関数を測定し，28Siの励起エネルギーにして46MeVに幅1MeVの共鳴を見出したことである。これはポテンシャル散乱で予期される場合よりもはるかに狭い幅をもったもので，しかも統計的変動によるものではないことを解析によって示した。さらにこの共鳴点で角度相関パターンを測定することによって角運動量17または18をもつ状態であることを示した。　複合系28Siについてはフランスの研究者達も鎖状の3原子分子的構造を見出したとしているが，著者の今回の研究はこの見解が尚早であることを示し，この方向への正しいアプローチを開拓したものである。 Several studies have been reported on nuclear-cluster structures consisting of three nuclei which form a triatomic molecule-like configuration as an intrinsic structure. The formation of a state having triatomic molecule-like configuration (hereafter, called "tri-nuclear cluster state(s)") in the form of 12c-12c-α was first suggested by Stokstad et al. ...Thesis--University of Tsukuba, D.Sc.(B), no. 2, 1978. 7. 1

Studies on lithium in the field of balneology : Effects of lithium salts on analgesic activity of aminopyrine

The authors studied the effect of pretreatment with internal use of lithium salts on analgesic activity of aminopyrine by hot-plate test in mice. The male mice at 4 weeks of age weighting 17-19 g were divided into 7 groups. Earch group being composed of 9-10 mice was given oraBy 0.1 ml of LiCI-solution per 10 g of body weight for 35 days, LiCl was dissolved in 0.9% saline solution, in such concentrations that each group received 0 mg, 50 mg, 100mg, 200 mg and 400mg of LiCl for each kg of body weight of mouse, respectively, Control group received only 0.9% saline solution. On the 1st, 3rd, 7th, 14th, 21st, 28th and 35th days of this experiment, 0.1 ml of 1% solution of aminopyrine per 109 of body weight was injected intraperitoneaJly and then tested 30 minutes later. In the hot-plate test, a mouse is placed on a hot plate being adjusted with the thermostat at 55°±1℃, and the response is licking or lifting the hind feet or an outright attempt to escape from the plate, The increase in response time is used to quantify the analgesic effect of aminopyrine, The results were as follows : 1. The response time in groups receiving 0-50 mg of LiCl per kg of body weight had decreased on the 14 th day, but it tended to return to the initial level after the 21st day of experiment. 2. The response time in groups receiving 100-400 mg of LiCl per kg of body weight had also decreased on the 14 th day, and the degree of the decrease in response time was greater than that of the former and then remained faily constant at this level to the end of the observation period. These results would indicate that LiCl inhibits the analgesic activity of aminopyrine

Face-Inversion Effect on Disgust Evoked by a Cluster of Dots

journal articl

ヒト肺動脈血管内皮細胞障害における好中球エラスターゼの役割

Made available in DSpace on 2012-09-04T05:10:06Z (GMT). No. of bitstreams: 1 furuno.pdf: 2907656 bytes, checksum: 14455165c95980ca68fa28327e94a3b5 (MD5) Previous issue date: 1998-02-0

Studies on sinter deposit Misasa radioactive hot springs

Sinter deposit in a distributing pipe used for about fifteen years in Misasa radioactive hot springs was investigated. The results were as follows; 1. The metal elements in this deposit were quaIi. tatively analysed by spectraspan plasma emission spectrophotometry (SPES), by fluorescent X-ray spectrometry, and following elements were detected; B, Na, Mg, AI, K, Ca, Mn, Fe, Cu, Zn, As, Sr, Ba and Pb. 2. The metal elements in this deposit were quantatively analysed by SPES and atomic absorption spectrophotometry, and following elements were determined; Fe : 508.7, As: 26.40, Ca: 7.85, Mn : 2.00, Al : 1.80, Na: 1.60, Zn: 1.33, K: 0.80, Cu: 0.67, Sr: 0.47, Mg: 0.35, Ba: 0.33 and B : 0.30 mg per gram. The color of this deposit was red brown, and the main component was ferric oxide. 3. Radioactive elements in this deposit were detected by autoradiography and radioluxography. Among the radioactive elements, concentration of radium was 320.5×10(-12)g/g (313.0×10(-12)Ci/g)

Studies on sinter deposits in Misasa radioactive hot springs (2nd report)

Qualitative and quantitative analysis of sinter deposits in a distributing pipe used for seventeen years (Sample No.1) and adhere to bathtub wall for eleven years (Sample No.2 and Sample No.3) in Misasa radioactive hot springs were investigated. The results were as follows ; (1) The color of deposits of Sample No.1 and Sample No.2 was black and the color of deposits of Sample No.3 was white. The metal elements in these deposits were qualitative analysed by spectraspan plasma emission spectrophotometry (SPES) and by fluorescent X-ray spectrometry. Following elements were detected, in Sample No.1 : Na, Mg, Al, K, Ca, Mn, Fe, Cu, As, Sr, Ba, Mo, and Pb, in Sample No.2 : Na, Mg, Al, Si, K, Ca, Ti, Mn, Fe, Cu, Zn, As, Sr, Ba, Pb and Cl and in Sample No.3 : Na, Mg, Al, Si, K, Ca, Mn, Fe, Cu, Zn, As, Rb, Sr, Mo, Ba, S, and Cl, (2) The metal elements in these deposits were quantitative analysed by SPES, atomic absorption spectrophotometry and emission spectrophometry. Following elements were determined, in Sample No.1 ; Mn : 411.6, Fe : 65.7, Ba : 20.0, Ca : 11.9, Na : 5.7, Cu : 4.5, K : 4.2, Sr : 2.9, Zn : 2.6, Mg : 1.4, in Sample No.2 ; Mn : 248.2, Fe : 28.5, Ba : 15.6, Ca : 25.0, Mg : 10.5, Na : 9.3, Cu : 5.4, K : 4.9, Sr: 7.4, Zn : 3.3, and in Sample No.3 ; Ca : 275.2, Sr : 32.4, Mg: 12.4, Na: 18.7, K: 5.0, Mn: 1.7 and Fe: 0.6mg per gram. The main components of these deposits were manganese compounds (Sample No.1 and Sample No.2) and calcium compounds (Sample No.3). Qualitative and quantitative analysis of barium in sinter deposits of Misasa spa was done by authers for the first time. (3) Radioactivity in these deposits were observed by autoradiography. Among the radioactive elements, concentration of radium were 3.41×10(-8) Ci/g (Sample No.1), 4.70×10(-9) Ci/g (Sample No.2) anp 2.36×10(-11) Ci/g (Sample No.3), respectively