排序方式: 共有96条查询结果,搜索用时 31 毫秒
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Sasano Sachia Murakami Hiroaki Suzuki Keita W. Minamoto Toshifumi Yamashita Yoh Masuda Reiji 《Fisheries Science》2022,88(1):91-107
Fisheries Science - This study aimed at characterizing the distribution of black sea bream Acanthopagrus schlegelii, a major target fish of commercial and recreational fishing, using environmental... 相似文献
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Noboru KUDO Natsumi ISHIKAWA Aki YAMANE Hiromi IKADAI Takashi OYAMADA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(1):113-116
Gongylonema pulchrum is an important parasite of captive
primates. Twelve rabbits were infected with 30 third-stage larvae of G.
pulchrum. At 4–7 months post-infection, animals were administered levamisole at
a single dose of 12 mg/kg, levamisole at 8 mg/kg three times at 2-day intervals,
levamisole at a single dose of 8 mg/kg after administration of mebendazole at 70 mg/kg for
3 days or 8 ml of distilled water for 3 days (control). Necropsy at 14
days after treatment revealed that single and multiple dosages of levamisole reduced
nematode burdens by 68.4% and 89.5%, respectively. The combined regimen of mebendazole and
levamisole exhibited high efficacy for treating G. pulchrum located
widely within the upper digestive tract, with a reduction of 98.2%. These results suggest
that this combined chemotherapy treatment may be effective against G.
pulchrum infection, including buccal and lingual gongylonemiasis in
primates. 相似文献
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Yoshihiro KOBAYASHI Tetsushi HIRANO Takuya OMOTEHARA Rie HASHIMOTO Yuria UMEMURA Hideto YUASA Natsumi MASUDA Naoto KUBOTA Kiichi MINAMI Shogo YANAI Mitsuko ISHIHARA-SUGANO Youhei MANTANI Toshifumi YOKOYAMA Hiroshi KITAGAWA Nobuhiko HOSHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(11):1355-1361
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Nagao K Okazaki R Nakamura T Miura YN Osawa T Bajo K Matsuda S Ebihara M Ireland TR Kitajima F Naraoka H Noguchi T Tsuchiyama A Yurimoto H Zolensky ME Uesugi M Shirai K Abe M Yada T Ishibashi Y Fujimura A Mukai T Ueno M Okada T Yoshikawa M Kawaguchi J 《Science (New York, N.Y.)》2011,333(6046):1128-1131
Noble gas isotopes were measured in three rocky grains from asteroid Itokawa to elucidate a history of irradiation from cosmic rays and solar wind on its surface. Large amounts of solar helium (He), neon (Ne), and argon (Ar) trapped in various depths in the grains were observed, which can be explained by multiple implantations of solar wind particles into the grains, combined with preferential He loss caused by frictional wear of space-weathered rims on the grains. Short residence time of less than 8 million years was implied for the grains by an estimate on cosmic-ray-produced (21)Ne. Our results suggest that Itokawa is continuously losing its surface materials into space at a rate of tens of centimeters per million years. The lifetime of Itokawa should be much shorter than the age of our solar system. 相似文献
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Aiko Nakano Hidetoshi Ikeno Toshifumi Kimura Hiromichi Sakamoto Masako Dannoura Yasuhiro Hirano Naoki Makita Leena Finér Mizue Ohashi 《植物养料与土壤学杂志》2012,175(5):775-783
Information related to the growth of fine roots is important for understanding C allocation in trees and the mechanisms of C cycling in ecosystems. Observations using a camera or scanner embedded in the soil enabled us to obtain continuous images of fine‐root‐growth dynamics. However, these methods are still labor‐intensive because the image analysis has to be conducted manually. We developed an automated method for tracking movement or elongation of fine roots using a sequence of scanner images. We also show how data obtained with these methods can be used for calculating fine‐root behavior. Two A4‐size scanners were buried in a mixed forest in Japan and images were taken continuously from within the soil. We preprocessed these images by extracting the fine‐root area from the images and developed an automated calculation plug‐in we named A‐root for tracking growth movement of the tips of fine roots. A‐root and manual‐tracking results were compared using the same images. The results show the A‐root and manual‐tracking methods yielded similar levels of accuracy. The average growth rate of 17 fine roots tracked using the program was 0.16 mm h–1. The observation of the direction of growth in fine roots showed the direction may be influenced by the original root's growth where the fine roots branched, distribution of soil particles, other roots, and the force of gravity. The A‐root analysis also suggested there may be an interaction between speed of growth and changes in direction of growing fine roots. 相似文献
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Fukushima U Sato M Okano S Aramaki Y Ito H Yoshioka K Oyamada T Uechi M 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(3):311-313
A five-year-old male Shih-Tzu dog presented with severe vomiting and weight loss. The clinical signs were successfully improved by an eight-day treatment with an H(2)-receptor antagonist, gastrointestinal protectant and antibiotics. Ten days later, however, recurrence of vomiting was seen despite continuous medical treatment. Based on clinical signs and the results of various diagnostic tests including CBC, biochemical analysis, contrast radiography, and endoscopy, a duodenal or pancreatic neoplasm was suspected and exploratory laparotomy was conducted. Some swollen pancreatic regions were found, and biopsy of the pancreas indicated the diagnosis of a gastrin-secreting tumor. Consequently, based on a high serum gastrin level as well as clinical signs and immunohistological findings, we diagnosed the disease as canine gastrinoma, a rare tumor of the pancreas. 相似文献