1. The chromosome numbers of 64 species have been studied on which 56 are investigated for the first time.
2. Morphological, anatomical and cytological findings on the Musaceae in the broad sense are considered from a phylogenetical standpoint and three distinct groups:
a) Musa-Ensete, b) Ravenala-Strelitzia-Phenakospermum and ) Holiconia are recognised as suggested by some authors. For these groups sub-familial status is proposed.
. Lowiaceae have been studied for the first time cytologically and their chromosome morphology, distinct from that of any other group of Zingiberales, confirms their claim to familial status.
4. Consideration of the conflicting theories proposed to account for the higher chromosome number in genera like Globba, Alpinia, and Phaemeria, etc. leads to rejection of Chakravorti's hypothesis of wholesale fragmentation of chromosomes and the acceptance of the opposed view of Raghavan and Venkatasubban and others.
5. Holttum's transference of the genus Zingiber to the tribe Hedychieae has been given cytological support on the following points:
a) the basic number in the genus Zingiber correlates with that of Kaempferia.
b) the new tribe Alpinieae (which is infact Zingibereae without Zingiber) have consistently 48 chromosomes in their somatic complements.
6. It is suggested that the African representatives of Kaempferia should be given the status of genus; Cienkowskya on the following points:
a) the difference in floral morphology
b) geographical separateness and
) the difference in the number and morphology of the chromosomes. By comparing the present and past findings, various lines of evolution of the chromosome complements within each group are discussed.
7. The basic number 11 is considered to be probably the original one for the Zingiberales as a whole, being present in Ravenala which is the most primitive member in the order. From this secondary basic numbers have arisen through evolution.

抄録全体を表示

This paper is concerned with dynamics of the standard penetration test (SPT). The usefulness of mounting strain gages at two different stations along a driven rod is described, together with a workable procedure of analysis. The analysis procedure makes use of the traveling time between the two gage points and enables one to identify the particle velocity, the displacement and the stress at any station of the rod, as well as the energy actually transmitted from a hammer to the rod. Particular attention is called for the consequence of inevitable, small errors in strain data upon such identifications. A pertinent procedure of error-correction is proposed and its validity is substantiated against the performance of well instrumented SPTs performed by the authors.

抄録全体を表示

L'entree en Iran des armees britannique et sovietique s'est produite en aout 1941. Elle ebranla du coup le regime de la dynastie pahlavi qui etait au pouvoir depuis 16 ans, et mena le pays vers l'instabilite politique et le chaos social. La defaite de l'arme gouvernementale, qui etait le pivot du regime de Reza Shah, reduisit considerablement le controle du gouvernement central dans le pays. Cette situation politico-sociale confuse permit le developpement de differents mouvements politiques en Iran. ainsi que le 16 aout 1942 le parti clandestin Komeley Jiyanewey Kurdistan (J-K) est ne a Mehabad, une ville au nord-ouest de l' Iran. Des sa formation, ce parti a su etendre sa sphere d'activite et, en une courte periode de temps, a fini par mettre sous son influence la ville et ses alentours. A la fin de la Seconde Guerre mondiale, en ete 1945, le J-K etait devenu une organisation representant le mouvement nationaliste kurde en Iran. a ce moment-la qu'un autre parti politique, le Hizbi Dimokratiki Kurdistan (HDK), fonde par Qazi Mihemed a Mehabad aussi, devait remplacer le J-K. Des le janvier 1946, le HDK proclama l'instauration de la≪Republique de Kurdistan≫. Cependant, les troupes sovietiques qui avaient pris sous leur protection la Republique evacuerent les terres iraniennes, en mai 1946. Six mois plus tard, sous la pression militaire du gouvernement central iranien, la republique s'ecroula. Deux theories tentent d'expliquer le passage du J-K au HDK. William Eagleton Jr., par exemple, affirme dans The Kurdish Republic of 1946 que le HDK a ete cree sur le conseil des autorites sovietiques. L'ex-secretaire general du Parti Democratique du Kurdistan d'Iran, 'Ebd el-Rehman Qasimlu maintient par contre que Qazi Mihemed a etabli le nouveau parti de sa propre initiative, eu regard a la situation politique de cette epoque-la. Il considere que la passage du J-K au HDK comme etant l'evolution d'un parti nationaliste clandestin en un parti democratique. En analysant ces deux theories et en se basant sur les autobiographies des personages qui se sont engages dans cet evenement, cette etude tentera d'examiner le principe directeur et les activites du J-K et de mieux comprendre les raisons pour lesquelles le J-K devait etre remplace par le HDK. La conclusion generale portera sur les differents objectifs politiques du J-K et du HDK. Le J-K visait l'elevation du niveau culturel du peuple tout en luttant contre le tribalisme, qui etait, selon lui, le probleme majeur de≪la nation kurde≫, et cela en ecartant toute idee de revolte militaire. Le J-K a aussi exclu de son cadre les elites sociales telles que les leaders des tribus et dirigeants religieux de peur qu'ils n'excercent une influence sur les membres du parti. L'automne de 1944 fut le debut d'une nouvelle ere pour le mouvement kurde. Alors que l'espoir de l'autodetermination augmentait parmi le peuple a mesure que s'approchait la fin de la guerre, la necessite de la force militaire a commence a se faire sentir dans le J-K. pour cela que s'est produite au sein du parti une tendance a compter sur l'aide militaire des sovietiques et a recourir au leadership de Qazi Mihemed, qui avait une certaine influence meme sur les leaders tribaux. Mais cette tendance etait essentiellement incompatible avec la ligne fondamentale du J-K et, graduellement, a prive ce parti de sa raison d'etre. Ainsi, le HDK se substitua au J-K en tant que≪parti democratique≫visant a rallier d'abord les elites sociales sous sa banniere, en s'appuyant sur l'autorite personnelle de Qazi Mihemed.

抄録全体を表示

A biosynthetic pathway for (

)-methyl cinnamate formation was evaluated in Tricholoma matsutake by tracer experiments using

13C

- and ²H-labeled precursors. One hundred percent selective

13C

incorporation was observed when L-[1,2,

3

,4,5,6,7,

8

,9-

13C₉

, ^15/N]phenylalanine was converted to (

E

)-[1,2,

3

,4,5,6,7,

8

,9-

13C₉

]cinnamate and (

E

)-[1,2,

3

,4,5,6,7,

8

,9-

13C₉

]methyl cinnamate. Similarly, 100% selective

13C

incorporation was observed when (

E

)-[1,2,

3

,4,5,6,7,

8

,9-

13C₉

]cinnamate was converted to (

E

)-[1,2,

3

,4,5,6,7,

8

,9-

13C₉

]methyl cinnamate. In contrast, the ²H incorporation selectivities were

82

.1% and

81

.4% when L-[2,

3

,4,5,6,7,7,

8

-

2H₈

]phenylalanine was converted to (

E

)-[2,

3

,4,5,6,7,

8

-²H₇]cinnamate and (

E

)-[2,

3

,4,5,6,7,

8

-²H₇]methyl cinnamate, respectively. Thus, T. matsutake synthesizes (

E

)-methyl cinnamate from L-phenylalanine via (

E

)-cinnamate. (

E

)-cinnamate was likely formed through two pathways: one was major and the other was a minor.

抄録全体を表示

A rapid flat gel isoelectric focusing method has been developed for the determination of VLDL apolipoprotein (apo) isoform patterns. Isoelectric focusing in 5% polyacrylamide flat gel with M urea and 2.% pharmalyte (PH 4-6.5)(Pharmacia) was carried out at 3000 V and 4° for 1 hr under a constant power of 30 W, using a flat bed apparatus FBE 3000 (Pharmacia) and an electrophoresis constant power supply ECPS 3000/150 (Pharmacia).The separation of apo isoform bands was good, and isoelectric points were determined 5. for apo 4, 5. for apo and 5.68 for apo 2 in our focusing system. We analyzed apo isoform patterns in our population (n=123) using this focusing method.
The results obtained were as follows;
1) The apo phenotype frequencies were 0.0% for 2/2, 6.5% for /2, 71.6% for /, 0.% for 4/2, 19.5% for 4/ and 1.6% for 4/4, indicating that Japanese have a higher frequency of allele and a lower frequency of ε2 allele than either German or Americans.
2) Two phenotypes, apo / and /2 were differentiated on the basis of the apo 2/ ratios. The ratio was 0.38±0.02 for group / and 1.12±0.04 for group /2. No overlap was observed between the two groups. The cut-off point between the two groups was assumed to be approximately 0.9 in our focusing system.
This method is useful for the analysis of apo isoform patterns.

抄録全体を表示

Static characteristics of two different structured InAlGaAs/InAlAs superlattice avalanche photodiodes (SLAPDs) cooled by liquid nitrogen were evaluated at a wavelength of 1.5 μm. The dark current of the SLAPD having a thick superlattice layer of 0.504 μm was 5×10^-13 A. This was successively reduced by four orders of magnitude compared to that of the thin layer SLAPD of 0.231 μm at a breakdown voltage of around 20 V. The thickened layer was effective in suppressing tunneling dark current. An output current of 1.7×10^-12 A at a bias voltage of 15 V was measured for an optical input with a wavelength of 1.5 μm and a signal power of 1×10^-12 W. This showed a sharp distinction from the dark current.

抄録全体を表示

Nアルキル,4:9,10-ペリレンテトラカルボン酸モノアンヒドリド=モノイミド[4a～]と芳香族アミン(アニリン,p-トルイジン,p-アニシジン,,5-キシリジン,4-アミノナゾベンゼン,およびo-フェニレンジアミン)を縮合して非対称型,4:9,10-ペリレンビス(ジカルボキシミド)誘導体-N-アルキル-N'-アリール-,4:9,10-ペリレンビス(ジカルボキシミド)(〔5a～〕,〔6a～〕,〔7a～〕,〔a～〕,〔9a～〕,および〔10a～b〕)を合成した. これらの各誘導体はすべて赤色系の色相を示し, 顔料試験の結果N-ブチル-N'-アリール-,4:9,10-ペリレンビス(ジカルボキシミド)(たとえば〔5〕や〔6〕)がとくにすぐれた耐光性を示した.

抄録全体を表示

Background : Usefulness of endoscopic microwave coagulation therapy (-MCT) was examined in 27 patients with hepatocellular carcinoma (HCC).
Material and Methods : HCC was found in patients with type B liver cirrhosis (LC), 16 patients with type LC, and patients with non B non LC. Median tumor size was 23 mm (solitary lesion , multiple 5). Laparoscopic MCT was performed for S_2-6 lesion and thoracoscopic MCT for lesion under general anesthesia. Linear type ultrasonography was used in every case for monitoring lesion ant therapeutic effect.
Results : Complete tumor necrosis was obtained in 24 cases (%) and local recurrence was found in 5 cases after the observation period of maximum 34 months. Pleural abscess, hemorrhage and hepatic infarction were found in cases without serious outcome.
Conclusions : We conclude that -MCT is quite promising therapy for surface type HCC in term of minimally invasive and curative procedure a time. It is important that sufficient marginal coagulation should be obtained.

抄録全体を表示

(

3H

) Tobramycin was used as a probe to determine the relationship between the structure of aminoglycoside antibiotics and their ability to remove this drug from its higher affinity binding site on the ribosome. The dissacharide moieties (neamine, tobramine, gentamine) appeared to have a common binding site, whereas the kanosamine, garosamine and ribose moieties determined the specificity of this binding. Amikacin and butikacin behaved in an anomalous manner in spite of their close structural relationship to tobramycin.

抄録全体を表示

Background: Oxidative stress, the imbalance between pro- and antioxidants, has been implicated in the etiology and pathophysiology of the incidence and mortality of many diseases. We aim to investigate the relations of dietary intakes of vitamin

and and main carotenoids with all-cause mortality in Japanese men and women.

Methods: The Japan Collaborative Cohort Study for Evaluation of Cancer Risk had

,795 men and 35,539 women, aged 40–79 years at baseline (1988–1990), who completed a valid food frequency questionnaire and were followed up to the end of 2009.

Results: There were 6,179 deaths in men and 5,355 deaths in women during the median follow-up of 18.9 years for men and 19.4 years for women. Multivariate hazard ratios for the highest versus lowest quintile intakes in women were 0.83 (

% confidence interval [CI], 0.76–0.90; P for trend < 0.0001) for vitamin , 0.85 (% CI, 0.78–0.93; P for trend < 0.0001) for vitamin , 0.88 (% CI, 0.–0.96; P for trend = 0.0006) for β-carotene, and 0.90 (% CI, 0.–0.98; P for trend = 0.0002) for β-cryptoxanthin. The joint effect of any two of these highly correlated micronutrients showed significant 12–17% reductions in risk in the high-intake group compared with the low-intake group in women. These significant associations were also observed in the highest quintile intakes of vitamin , vitamin , and β-carotene in female non-smokers but were not observed in female smokers, male smokers, and non-smokers.

Conclusions: Higher dietary intakes of antioxidant vitamins may reduce the risk of all-cause mortality in middle-aged Japanese women, especially female non-smokers.

抄録全体を表示

The activities of tobramycin derivatives acetylated and ethylated on the 6'-N, 2'-N and -N positions were examined. The MICs of these derivatives against tobramycin sensitive strains indicated that 2'-N-ethylated and 6'-N-ethylated derivatives have a fairly good activity, and confirmed that the -N position is the most important one for antibiotic activity since -N derivatives were less active. The MICs of these derivatives against tobramycin resistant strains, and their inactivation by tobramycin modifying enzymes were examined. These results showed that 2'-N or 6'-N ethylation protects the drug against inactivation by AAC(2') or AAC(6'), respectively, and 2'-N-ethyltobramycin and 6'-N-ethyltobramycin were active against strains containing these modifying enzymes. On the other hand, -N ethylation protects the drug against inactivation by AAC() but -N-ethyl tobramycin does not inhibit strains containing this enzyme.

抄録全体を表示

Recently we saw two patients with acute hepatitis, infected with hepatitis virus (HEV) of a rare genotype . One patient (Tokyo/2012) had traveled Spain 1 month before developing hepatitis, while the other patient (Saitama/2014) did not have history of traveling abroad. Nearly entire genomic sequence of HEV was recovered from both patients; 7,336 nucleotides (nt) from the Tokyo case in 2012 (isolate name=JAO-SpaTok12, accession=LC055972) and 7,306 nt from the Saitama case in 2014 (JMH-Sai14, LC055973). Phylogenetic analysis revealed that JMH-Sai14 from the Saitama patient, who denied having traveled abroad, could be classified into a subgroup of genotype , together with European isolates as well as an already reported Japanese isolate HE-JA12-0725 (AB850879) from a patient living in Gunma and having never traveled abroad when he/she developed hepatitis in 2012. On the other hand, the Tokyo patient's sequence segregated to a separate branch together with European isolates. Based on these findings it is possible that HEV genotype has already made inroad into Japan as in the case of .

抄録全体を表示