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排序方式: 共有113条查询结果,搜索用时 15 毫秒
1.
Hirsch VM Mitcham SC Dunn DK 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1984,13(2):16-20
An unusual combination of blood cytopenias and monocytic proliferation was observed in a dog. Initial hematologic findings included severe thrombocytopenia, neutropenia, mild nonregenerative anemia and apparently normal bone marrow. Subsequently, a severe persistent monocytosis developed and the bone marrow became populated with monocytes and cytophagic macrophages. Splenomegaly was due to reticuloendothelial hyperplasia and extramedultary hematopoiesis. Treatment consisted of splenectomy and azathioprine but the response was poor and the dog was euthanized. Postmortem examination revealed a hypocellular bone marrow which contained moderate numbers of monocytes and plasma cells. Neoplastic proliferation was absent in visceral organs. No definite diagnosis was established; chronic blood cell consumption, perhaps immune-mediated, may have been responsible for the extensive reticuloendothelial hyperplasia and cytophagia. 相似文献
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Hirsch VM McLaughlin BG Parent J 《The Canadian veterinary journal. La revue veterinaire canadienne》1983,24(10):301-304
Lymphosarcoma in a six year old male Doberman pinscher was accompanied by hypercalcemia, generalized osteolysis and renal calcification. Tumor involvement of bone marrow was extensive. The possible pathogenesis of hypercalcemia was thought to be the result of a locally active bone-resorbing factor secreted by the tumor cells. 相似文献
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Analgesic efficacy of an oral transmucosal spray formulation of meloxicam alone or in combination with tramadol in cats with naturally occurring osteoarthritis 下载免费PDF全文
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Hirsch AC Philipp H Kleemann R 《Journal of veterinary pharmacology and therapeutics》2003,26(5):355-360
The efficacy of meloxicam in the treatment of sows with mastitis-metritis-agalactia syndrome was investigated in comparison with flunixin. Basic therapy comprised administration of an antibiotic and oxytocin. A total of 200 sows and litters were examined in a double-blind clinical study with observations up to 8 days after the first treatment. The primary parameter, the clinical index score on day 2, consisting of rectal temperature, feed intake, general demeanour, respiratory rate, vaginal discharge, degree of inflammation of mammary glands, milk flow and nursing behaviour, revealed a significant (P < or = 0.05) non-inferiority of meloxicam in comparison with flunixin implying equal efficacy of both drugs. No significant differences were noted in the distribution of clinical efficacy scores within both groups at each day of examination. The differences in litter weight and daily weight gain per piglet were not significant between the two test groups. The mortality rates until day 8 of the study were without significant difference between groups. In piglets of diseased litters, however, the mortality rate was 50% lower in the meloxicam group in comparison with the reference group, this difference reaching statistical significance (P < or = 0.05). 相似文献
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Micromonospora species have long been recognized as important sources of antibiotics and also for their unusual spores. However, their involvement in plant-microbe associations is poorly understood although several studies demonstrate that Micromonospora species function in biocontrol, plant growth promotion, root ecology, and in the breakdown of plant cell wall material. Our knowledge of this generally understudied group of actinomycetes has been greatly advanced by the increasing number of reports of their associations with plants, by the deployment of DNA cloning and molecular systematics techniques, and by the recent application of whole genome sequencing. Efforts to annotate the genomes of several Micromonospora species are underway. This information will greatly augment our knowledge of these versatile microorganisms. 相似文献
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Abstract: The Se San is an important tributary river basin of the Mekong. In 1993, Vietnam began building the Yali Falls Dam 80 kilometres upstream of the point at which this westward flowing river enters Cambodia. Ninety indigenous communities along the Se San River in two provinces of north‐eastern Cambodia have been impacted severely by flooding, and a dramatically altered hydrological regime that affects fisheries and all other aspects of livelihood, such as river bank agriculture. Since 2000, when the first turbines were commissioned, the affected communities have been increasingly vocal regarding the impacts of Yali and the plans for several more dams on upper reaches of the river. A complex set of actors including non‐governmental organisations, village, district and provincial authorities, national committees in Cambodia and Vietnam, the Mekong River Commission and a range of international players have become involved in a two‐track process, which has nevertheless allowed little space for negotiation over the Se San River on the part of those most directly affected. This case has fundamental implications for governance and conflict management in the Mekong and more widely. The Australian Mekong Resource Centre has been working with local actors to document the Se San case as part of an international project on River Basin Management: a negotiated approach, in support of six cases that involve up‐scaling of grassroots river basin initiatives in Africa, Latin America and Asia. In this article, we illustrate the significance of and problematise negotiation as a socially and politically embedded conflict management principle, with reference to the Se San case. 相似文献
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The structure of the first coordination shell in liquid water 总被引:1,自引:0,他引:1
Wernet P Nordlund D Bergmann U Cavalleri M Odelius M Ogasawara H Näslund LA Hirsch TK Ojamäe L Glatzel P Pettersson LG Nilsson A 《Science (New York, N.Y.)》2004,304(5673):995-999
X-ray absorption spectroscopy and x-ray Raman scattering were used to probe the molecular arrangement in the first coordination shell of liquid water. The local structure is characterized by comparison with bulk and surface of ordinary hexagonal ice Ih and with calculated spectra. Most molecules in liquid water are in two hydrogen-bonded configurations with one strong donor and one strong acceptor hydrogen bond in contrast to the four hydrogen-bonded tetrahedral structure in ice. Upon heating from 25 degrees C to 90 degrees C, 5 to 10% of the molecules change from tetrahedral environments to two hydrogen-bonded configurations. Our findings are consistent with neutron and x-ray diffraction data, and combining the results sets a strong limit for possible local structure distributions in liquid water. Serious discrepancies with structures based on current molecular dynamics simulations are observed. 相似文献