排序方式: 共有20条查询结果,搜索用时 15 毫秒
1.
In Japan, ammoniacal copper quaternary wood preservatives type-1 (ACQ-1), which contains copper and benzalkonium chloride
as its active ingredients, is among the most widely used wood preservatives in the pressure treatment of wood. Benzalkonium
chloride (BAC) in commercial ACQ-1 products mainly comprises C12 and C14 homologues. In the present study, the leaching characteristics
of these BAC homologues were investigated using the heartwood and sapwood portions of Japanese cedar, Japanese larch, and
Sakhalin fir treated with ACQ-1 and 1% monoethanolamine (MEA) solution containing equimolar amounts of homologues. Distilled
water (DW) and artificial seawater (SW) were used as leaching media. Consequently, it was observed that the leaching rate
of the C12 homologue tended to be higher than that of the C14 homologue in DW. The leaching of C12 homologues was accelerated
by using SW, resulting in a significantly higher leaching rate than the C14 homologue using SW. It was thought that the difference
in the hydrophobicities based on alkyl chain lengths resulted in these phenomena. However, when the heartwood portion of Japanese
larch was treated with the homologues in MEA, the leaching rate of the C14 homologue was significantly higher than that of
the C12 homologue. 相似文献
2.
Teruhisa Yotsuya Takao Ichii Minoru Sawano Tetsu Nakanishi Takeshi Ozaki 《Scientia Horticulturae》1984,24(2):177-184
Leaf buds of Japanese pear were collected in early June and early November and regarded as summer and winter dormant buds, respectively. Bud explants with and without scales were prepared from each of them, and cultured in vitro for 75 days at 25°C with 14 h photoperiod, on a medium either without growth regulators, or supplied with BA and GAs (GA3 and GA4+7), singly or in combination.When either BA or GA4+7 was contained in the medium, bud expansion occurred. Thereafter, summer dormant buds grew into shoots in the presence of BA, while winter dormant buds, although they swelled profusely, remained in a rosette. In the presence of BA, GA4+7 markedly stimulated shoot elongation of summer dormant buds, but GA3 did not. In winter dormant buds, GA4+7 not only failed to stimulate shoot elongation, but also interfered with the BA-induced swelling described above.The presence of bud scales delayed expansion of summer dormant buds, while it had little effect on winter dormant buds. The delaying effect of scales on expansion of summer buds was effectively removed by application of GA4+7 to the medium. 相似文献
3.
Maruyama H Miura T Sakai M Koie H Yamaya Y Shibuya H Sato T Watari T Takeuchi A Tokuriki M Hasegawa A 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(5):573-575
The incidence of DIC in 208 dogs with a malignant tumor was evaluated. The incidence of DIC was 9.6% in dogs with a malignant tumor which was a solid tumor in all. In 164 dogs with a malignant solid tumor, the incidence of DIC was 12.2%. The incidence of DIC in dogs with hemangiosarcoma, mammary gland carcinoma and adenocarcinoma of the lung was significantly higher than that in dogs with other malignant tumors. These results suggested that special care in looking for DIC should be taken in dogs with a malignant solid tumor. 相似文献
4.
Tomonari Kotani Teruhisa Genka Hiroshi Fushimi Masahiro Hayashi Kristof Dierckens Patrick Sorgeloos 《Fisheries Science》2009,75(4):975-984
This study aimed at comparing fatty acid contents of rotifers cultured with different methods after nutritional enrichment
in order to evaluate the rotifer quality produced by these methods. Rotifers were cultured using either a batch or a continuous
culture. From the batch culture, three experimental subpopulations were used, sampled from the culture at 1, 24, and 48 h
after rotifer inoculation. The continuous culture was performed with two tanks; one was for cultivation with continuous feeding
and water supply (cultivation tank), and another was for harvesting from the cultivation tank by overflow (harvest tank).
From the continuous culture, two subpopulations were used: one from the cultivation and one from the harvest tank. Nutritional
enrichment was performed after each culture. Each population was enriched with Nannochloropsis oculata or a commercial enrichment diet. When the enrichment was performed with N. oculata on populations at 24 h after inoculation originating from either of the two tanks of continuous culture or the batch culture
tank, a higher quantity of arachidonic acid (ARA) and eicosapentaenoic acid (EPA) was obtained from the two tanks of continuous
culture. The same results were obtained when enrichment diet was used, this time including docosahexaenoic acid (DHA). 相似文献
5.
Different leaching media composed of watersoluble extracts from Sakhalin fi r, Japanese cedar, and Japanese larch heartwoods
and of taxifolin were used to characterize leaching of the C12 and C14 homologues of benzalkonium chloride from treated wood.
The leaching medium of Sakhalin fi r extract moderately accelerated the leaching rates of the two homologues. Japanese cedar
extract accelerated the leaching of the C12 homologue at a similar rate and that of the C14 homologue at a higher rate. Japanese
larch extract remarkably accelerated the leaching rates of both homologues, particularly that of the C14 homologue. Thus,
the leaching rate of the C14 homologue was higher than that of the C12 homologue with the Japanese cedar and larch extracts.
The media of taxifolin, a major phenolic extractive of Japanese larch, preferentially accelerated the leaching rate of the
C14 homologue. The amounts of phenolic compounds in the different leaching media were in the following order: Japanese larch
> Japanese cedar > Sakhalin fi r. These results indicate a relationship between the amount of phenolic compounds and the leaching
rates of the two homologues. 相似文献
6.
Sakai M Watari T Miura T Maruyama H Koie H Yamaya Y Takeuchi A Hasegawa A 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2003,65(1):83-86
To evaluate the hemostatic effects of desmopressin (DDAVP) in dogs with aspirin-induced platelet dysfunction and hemostatic impairment in chronic liver diseases, 3 microg/kg DDAVP was administrated subcutaneously. In aspirin-induced platelet dysfunction dogs (n=5), prolonged BMBT (buccal mucosal bleeding time) was shortened significantly after DDAVP injection (2.2 +/- 1.2 min, P<0.05). In dogs with chronic liver diseases (n=4), activated partial thromboplastin time (APTT) tended to shorten by 0.9 to 3.0 sec, and prolonged BMBT was shortened in two cases for 4.2 and 1.7 min after DDAVP injection. Therefore, the present results indicated that DDAVP shortened the prolonged BMBT in dogs with aspirin-induced platelet dysfunction and chronic liver disease. DDAVP might be helpful in hemostasis under invasive procedures such as biopsy or surgery for dogs with hemostatic impairment. 相似文献
7.
Experiments were carried out to determine the leaching mechanism of benzalkonium chloride (BAC) from treated wood in soil. Wood specimens were treated with C12, C14 and C16 BAC homologues and exposed to soil or aqueous solutions containing oxalic acid, sodium oxalate, hydrochloric acid, sodium chloride or sodium humate. The leaching rates of the homologues in soil were close to each other and all higher than in distilled water. The order of the rates in soil (C12 ≈ C14 ≈ C16) was different from that in distilled water (C12 > C14 > C16). The leaching rates of the homologues in the acidic solutions and their salts solution were also higher than in distilled water, and the order of the rates was the same as in distilled water. The aqueous solution of sodium humate also accelerated homologue leaching but resulted in an order of C16 > C14 > C12. The BAC leaching acceleration mechanism by humate was thought to be different from the mechanisms of acids and their salts and plays an important role in the leaching behaviour of BAC in soil. 相似文献
8.
Miura T Watari T Maruyama H Sakai M Takahashi T Kano R Koie H Yamaya Y Tokuriki M Hasegawa A 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2005,67(12):1257-1260
A cDNA encoding canine mucosal addressin cell adhesion molecule-1 (MAdCAM-1) was cloned. The entire open reading frame of canine MAdCAM-1 cDNA comprises 1137 bp, corresponding to 378 amino acid residues. The deduced amino acid sequence of canine MAdCAM-1 was 55.2%, 53.7%, and 52.4% identical to rat, mouse, and human MAdCAM-1, respectively. Canine MAdCAM-1 appeared to contain two immunoglobulin-like domains at the N-terminus, followed by a mucin-like domain and a third immunoglobulin-like domain. The structures of the dog, rat, and mouse proteins are likely similar because all of the cysteine residues in the immunoglobulin-like domains were conserved. Canine MAdCAM-1 mRNA was confirmed to express extremely in the mesenteric lymph node by RT-PCR. 相似文献
9.
Ito M Nagai M Hayakawa Y Komae H Murakami N Yotsuya S Asakura S Sakoda Y Kida H 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2008,70(9):899-906
In August 2007, an outbreak of equine influenza occurred among vaccinated racehorses with Japanese commercial equine influenza vaccine at Kanazawa Racecourse in Ishikawa prefecture in Japan. Apparent symptoms were pyrexia (38.2-41.0 degrees C) and nasal discharge with or without coughing, although approximately half of the infected horses were subclinical. All horses had been shot with a vaccine that contained two inactivated H3N8 influenza virus strains [A/equine/La Plata/93 (La Plata/93) of American lineage and A/equine/Avesta/93 (Avesta/93) of European lineage] and an H7N7 strain (A/equine/Newmarket/1/77). Influenza virus, A/equine/Kanazawa/1/2007 (H3N8) (Kanazawa/07), was isolated from one of the nasal swab samples of diseased horses. Phylogenetic analysis indicated that Kanazawa/07 was classified into the American sublineage Florida. In addition, four amino acid substitutions were found in the antigenic sites B and E in the HA1 subunit protein of Kanazawa/07 in comparison with that of La Plata/93. Hemagglutination-inhibition (HI) test using 16 serum samples from recovering horses revealed that 1.4- to 8-fold difference in titers between Kanazawa/07 and either of the vaccine strains. The present findings suggest that Japanese commercial inactivated vaccine contributed to reducing the morbidity rate and manifestation of the clinical signs of horses infected with Kanazawa/07 that may be antigenically different from the vaccine strains. 相似文献
10.
Patterns of variation for seven enzyme systems were studied in 68 accessions of cultivated sesame (Sesamum indicum L.), 12
from Japan, 15 from Korea and 41 from Thailand. Only one enzyme system, isocitrate dehydrogenase (IDH), of these exhibited
variation. The IDH isozymes were shown to be controlled by a single locus (Idh) with two alleles. The two alleles were widely
distributed in the accessions from the three countries. As few gene markers which have simple genetic control are available
in sesame, these IDH isozymes could contribute to a range of studies in the breeding and genetics of sesame.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献