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Kenichi Daikoku Shigeaki Hattori Aiko Deguchi Yuji Fujita Hotaek Park Kazuho Matsumoto 《Journal of Forest Research》2007,12(6):452-466
We explored the relationship between directional variation (changes in direction from a reference point) in vegetation and
wind profiles, and propose an empirical wind profile model that may reproduce the wind profile within the canopy (such as
secondary wind maximum) and reduce calculation loads. Based on the results of our observations in secondary broad-leaved forest,
we clarified the variation in secondary wind maximum and aerodynamic parameters in wind direction, and assessed the influence
of forest structural heterogeneity on the wind profile. Wind blew from specific directions depending on the time of day and
season, and secondary wind maxima were observed in particular wind directions. Outlier estimations of aerodynamic parameters
were determined for wind directions of 45°, 120–210°, and 300°, and these did not show a logarithmic distribution. Our proposed
model reproduced the wind profile within and above the canopy, closely resembling K-theory and closure models, and reduced
the required number of calculations and observations. The influence of forest structural heterogeneity was greatest in the
upper part of the canopy (9.14 m), and reproducibility of the wind profile was improved by 0.05 m/s (3.4% on average) by changing
the forest structural parameters of the model according to the wind direction. It was clear that forest structural heterogeneity
did not cause critical errors in estimation of the wind profile, even at our study site, which had complex forest structure. 相似文献
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Tanaka R Soda A Saida Y Sugihara K Takashima K Shibazaki A Yamane Y 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2007,69(8):857-859
We performed a retrospective study of 56 dogs with Patent Ductus Arteriosus (PDA) to evaluate the indications for and efficacy of transarterial PDA coil embolization. Transarterial PDA coil embolization was conducted in 37 cases (66.1%) and surgical ligation was conducted in 16 cases (28.6%). Three cases (5.4%) were diagnosed as pulmonary hypertension and were excluded from surgical intervention. Although coil dislodgement was observed in the pulmonary artery in one case, no death occurred during coil embolization or surgical ligation. Echocardiography showed that fractional shortening decreased from 35.4 +/- 6.8% to 30.2 +/- 5.9% (P<0.05) after transarterial PDA coil embolization. Although slight residual shunts were observed in 18 cases, transarterial PDA coil embolization was effective treatment of PDA. 相似文献
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Junya AITA Madoka ICHIKAWA-SEKI Aiko KINAMI Seiko YAITA Yoshihiro KUMAGAI Yoshifumi NISHIKAWA Tadashi ITAGAKI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(8):997-999
Cryptosporidium oocysts were found in 43 out of 77 calves from two farms in Iwate Prefecture and nine farms on Tanegashima Island, Kagoshima Prefecture, Japan. The DNA fragments of 18S ribosomal RNA (18S rRNA) gene were amplified by a nested PCR from 43 oocyst-positive as well as one oocyst-negative samples. All of them were precisely identified as C. parvum by analyzing the nucleotide sequences of the 18S rRNA gene. C. parvum oocyst-positive calves ranged in age from 6 to 13 days old and significantly have watery diarrhea (P<0.05). Sequences of the gene encoding the 60-kDa glycoprotein (GP60) in 43 Cryptosporidium oocyst-positive samples were identical to that of the zoonotic IIaA15G2R1 subtype. We therefore suggest that calves could be potential sources of C. parvum infections in humans. 相似文献
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Kazuya Koizumi Nobuhiro Kuboyama Kohtaro Tomono Akira Tanaka Aiko Ohki Hitoshi Kohno Ko Wakabayashi Peter Bger 《Pest management science》1999,55(6):642-645
New fluoroalkyl-substituted 1,3,5-triazine derivatives were synthesized and screened for herbicidal activity using a greenhouse pot test. Surprisingly, a series of 2-alkyl-4-fluoroalkyl-6-aralkylamino-1,3,5-triazines e.g. 6-(4-bromobenzylamino)-2-methyl-4-trifluoromethyl-1,3,5-triazine was found to possess strong pre- and post-emergence herbicidal activities, although the conventional herbicidal 1,3,5-triazines generally should have a 2-substituted-4,6-diamino-1,3,5-triazine structure for herbicidal activity. Our compounds show strong Photosynthetic Electron Transport inhibitory activity (PI50 c 7). Although their herbicidal effect is considered to be caused by a process similar to that for the conventional 1,3,5-triazine herbicide atrazine, they can control atrazine-resistant Chenopodium album effectively, and will thus form promising trial compounds for new triazine herbicide design. 相似文献
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Makoto OTSUKA Aiko ISHIDA Yumi NAKAYAMA Mamoru SAITO Makoto YAMAZAKI Hitoshi MURAKAMI Yutaka NAKAMURA Mitsuto MATSUMOTO Katsuhiro MAMOTO Ryozo TAKADA 《Animal Science Journal》2004,75(3):225-229
Nondigestible oligosaccharides are not digested in the small intestine, but are fermented by bacteria colonizing in the large intestine. Physiological effects of non‐digestible oligosaccharides have been considered to be conferred by the fermentation of bacteria colonizing in the large intestine. Because cellooligosaccharide is a non‐digestible oligosaccharide, various physiological effects are expected. However, physiological functions of cellooligosaccharide are not well understood. This experiment was conducted to clarify the effect of dietary supplementation with cellooligosaccharide on the growth performance in weanling pigs. The result showed that average daily gain was significantly higher (P < 0.05) in pigs fed a diet supplemented with cellooligosaccharide than in pigs without cellooligosaccharide. There was a tendency to increasing average daily feed intake in pigs with cellooligosaccharide, though the significant difference was not detected (P = 0.18). Feed efficiency and nutrient digestibility of feces and ileum were not changed by feeding cellooligosaccharide. In addition, blood urea nitrogen was significantly higher (P < 0.05) in pigs fed the diet supplemented with cellooligosaccharide than in pigs without cellooligosaccharide. The concentrations of acetic and iso‐valeric acids in the cecum of pigs fed the diet with cellooligosaccharide tended to be higher (P < 0.10) than those without cellooligosaccharide. The results obtained in this study demonstrated that dietary supplementation with cellooligosaccharide improves growth performance in weanling pigs. 相似文献
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Aiko Nishiura Yusuke Kazama Tomoko Abe Nobuyuki Mizuno Shuhei Nasuda Koji Murai 《Breeding Science》2014,64(3):213-221
Four extra early-flowering mutants, named extra early-flowering1 (exe1), exe2, exe3, and exe4, were identified in Triticum monococcum strain KU104-1 following heavy-ion beam mutagenesis. The four exe mutants fell into two groups, namely Type I (moderately extra early-flowering type; exe1 and exe3) and Type II (extremely extra early-flowering type; exe2 and exe4). Analysis of plant development in a growth chamber showed that the speed of leaf emergence was accelerated in exe mutants at the reproductive stage compared to wild-type (WT) plants. The speed of leaf emergence was faster in Type II than Type I plants. Analysis of VERNALIZATION 1 (VRN1), a flowering promoter gene, showed that it was more highly expressed in seedlings at early developmental stages in Type II mutants than Type I mutants. These findings indicate that the difference in earliness between Type I and Type II mutants is associated with the level of VRN1 expression. The original KU104-1 is an einkorn wheat strain that carries a null allele of the VRN2 gene, a repressor of flowering. Thus, our results indicate that the level of VRN1 expression controls earliness in exe mutants independently of VRN2. 相似文献
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Saida Y Tanaka R Hayama T Soda A Yamane Y 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2007,69(4):437-439
A two-month-old male long coated Chihuahua, which had symptoms including anorexia and decreased growth, was diagnosed with pulmonic valvular stenosis. Echocardiography showed the severe progression of pulmonary arterial velocity (6.29 m/s, Pressure gradient (PG); 158 mmHg). Transventricular pulmonic dilation valvuloplasty (Brock) was conducted, and stenosed valve was dilated by the oto forceps. Pleural effusion was observed postoperatively, however, it was diminished under the intensive care for five days after the surgery. The right ventricular systolic pressure was decreased to 60 mmHg in angiocardiography conducted two months postoperatively and the dog has kept a good general condition with recovered vigor and appetite. 相似文献