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Performance characteristics of the turbidimetric ACL‐TOP CTS 300 coagulation analyzer in dogs and cats 
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MK Gagan LK Ayliffe D Hopley JA Cali GE Mortimer J Chappell MT McCulloch MJ Head 《Science (New York, N.Y.)》1998,279(5353):1014-1018
Skeletal Sr/Ca and 18O/16O ratios in corals from the Great Barrier Reef, Australia, indicate that the tropical ocean surface approximately 5350 years ago was 1 degrees C warmer and enriched in 18O by 0.5 per mil relative to modern seawater. The results suggest that the temperature increase enhanced the evaporative enrichment of 18O in seawater. Transport of part of the additional atmospheric water vapor to extratropical latitudes may have sustained the 18O/16O anomaly. The reduced glacial-Holocene shift in seawater 18O/16O ratio produced by the mid-Holocene 18O enrichment may help to reconcile the different temperature histories for the last deglaciation given by coral Sr/Ca thermometry and foraminiferal oxygen-isotope records. 相似文献
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Ultrasonic shear wave velocities of MgSiO3 perovskite at 8 GPa and 800 K and lower mantle composition 总被引：1，自引：0，他引：1
YD Sinelnikov G Chen DR Neuville MT Vaughan RC Liebermann 《Science (New York, N.Y.)》1998,281(5377):677-679
Ultrasonic interferometric measurements of the shear elastic properties of MgSiO3 perovskite were conducted on three polycrystalline specimens at conditions up to pressures of 8 gigapascals and temperatures of 800 kelvin. The acoustic measurements produced the pressure (P) and temperature (T) derivatives of the shear modulus (G), namely ( partial differentialG/ partial differentialP)T = 1.8 +/- 0.4 and ( partial differentialG/ partial differentialT)P = -2.9 +/- 0.3 x 10(-2) gigapascals per kelvin. Combining these derivatives with the derivatives that were measured for the bulk modulus and thermal expansion of MgSiO3 perovskite provided data that suggest lower mantle compositions between pyrolite and C1 carbonaceous chondrite and a lower mantle potential temperature of 1500 +/- 200 kelvin. 相似文献
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SM Ossedryver GI Baldwin BM Stone RA McKenzie AW van Eps S Murray MT Fletcher 《Australian veterinary journal》2013,91(4):143-149
Three ponies continuously grazed a pasture containing an estimated 24% Indigofera spicata (wet weight basis) for 4–6 weeks in April and May 2004. They developed ataxia, paresis, depression, muscle fasciculations, dysphagia, ptyalism and halitosis. Two also developed corneal opacity. One pony recovered with supportive treatment, but the other two were euthanased and necropsied. Neuropathology was not present in either case, but both livers had periacinar and periportal lymphocytic infiltrations and hydropic degeneration of mid‐zonal hepatocytes, with mild to moderate periacinar necrosis also evident in one. The I. spicata contained 2.66 mg 3‐nitropropionic acid (3‐NPA)/g dry matter and 1.5 mg indospicine/g dry matter. Indospicine, but not 3‐NPA, was detected in serum from both of the euthanased ponies and indospicine was detected in heart, liver and muscle from the one pony in which this assay was performed. The clinical syndrome closely resembled ‘Birdsville horse disease’ caused by I. linnaei and was similar to that reported in horses poisoned by the closely related species I. hendecaphylla and to 3‐NPA poisoning of other animals, including humans. 3‐NPA is thought to cause this neurological syndrome. To our knowledge, this is the first authenticated report of I. spicata poisoning in grazing animals. We also report here the first published evidence that 3‐NPA and indospicine exist in naturalised I. spicata in Australia and of the formation of indospicine residues in tissues of animals grazing paddocks infested with I. spicata. 相似文献
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J Massardier B Courbiere J Lornage C Mazoyer MT Poirel S Martinot M Franck B Salle 《Reproduction in domestic animals》2010,45(1):8-12
Iatrogenic ovarian failure and infertility are long term‐term side effects of anticancerous gonadotoxic treatments in children or women of reproductive year. Ovarian cortex cryopreservation can be a solution to preserve immature germinal cells before gonadotoxic treatment, for later transplantation. The aim of our study was to prove the efficiency of a laparoscopic technique for orthotopic graft after a slow‐freezing/thawing protocol, and to evaluate the effect of ovarian cryopreservation and autograft on the primordial follicle survival rate. Experimental surgical study was performed on 6‐ to 12‐month‐old ewes. The study was approved by the ethic committee of the Lyon‐veterinary‐school. The left ovary was removed by laparoscopy and cut in half, and medulla was excised. In group 1 (n = 6), autograft was performed immediately on the right ovary, and in group 2 (n = 6), graft was performed after a slow‐freezing/thawing protocol. The second hemi‐ovary served as an ungrafted control fragment. A polypropylene/polyglactin mesh was included between graft and base to separate the two structures, to help histological analysis. The mean graft performance time was 71 ± 8 min in the first group and 57 ± 10 min in the second. Freezing did not affect the number of primordial follicles. In the ungraft control fragments, the global anomaly rate (cytoplasm plus nuclear anomaly) increased after freezing (p < 0.05). Others results did not reach signification. Pelvic adhesion occurred only once. The post‐graft primordial follicle survival rate was 5.1 ± 2.8% in the non‐frozen group vs. 6.3 ± 2.3% after freezing/thawing. Kruskal–Wallis and Wilkoxon non‐parametric tests were used for statistical analysis. Laparoscopy seems to be a well‐adapted technique for ovarian tissue orthotopic autograft. The main follicle loss occurs before graft revascularization. Our orthotopic graft’s procedure has to be improved to obtain a better graft’s neovascularization, and to have a better long‐term post‐graft primordial follicle survival rate. 相似文献
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L Jason Krutz Dale L Shaner Mark A Weaver Richard MT Webb Robert M Zablotowicz Krishna N Reddy Yanbo Huang Steven J Thomson 《Pest management science》2010,66(5):461-481
Novel catabolic pathways enabling rapid detoxification of s‐triazine herbicides have been elucidated and detected at a growing number of locations. The genes responsible for s‐triazine mineralization, i.e. atzABCDEF and trzNDF, occur in at least four bacterial phyla and are implicated in the development of enhanced degradation in agricultural soils from all continents except Antarctica. Enhanced degradation occurs in at least nine crops and six crop rotation systems that rely on s‐triazine herbicides for weed control, and, with the exception of acidic soil conditions and s‐triazine application frequency, adaptation of the microbial population is independent of soil physiochemical properties and cultural management practices. From an agronomic perspective, residual weed control could be reduced tenfold in s‐triazine‐adapted relative to non‐adapted soils. From an environmental standpoint, the off‐site loss of total s‐triazine residues could be overestimated 13‐fold in adapted soils if altered persistence estimates and metabolic pathways are not reflected in fate and transport models. Empirical models requiring soil pH and s‐triazine use history as input parameters predict atrazine persistence more accurately than historical estimates, thereby allowing practitioners to adjust weed control strategies and model input values when warranted. Published in 2010 by John Wiley & Sons, Ltd. 相似文献
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Noé F. Rodríguez Maria T. Tejedor-Junco Margarita González-Martín Francisco Doreste Carlos Gutierrez 《Journal of Equine Veterinary Science》2013
Trypanosoma evansi was diagnosed in a camel in the Canary Islands for the first time in 1997, and the parasite is still present in a little area of the Archipelago. Since then, the disease has exclusively affected camel herds, and clinical evidence of the infection has not been demonstrated in any other animal hosts. In the frame of a control plan of the disease in the Archipelago, 864 equines located in the infected area were examined during one decade (2001-2010), of which a total of 26 (3%) were serologically positive but showed negative results at parasitological and molecular examinations. FreeCalc, an epidemiological tool to detect presence/absence of disease, showed that the population would be diseased at a confidence level of 99.916%. These results must suppose to implement the control plan against the disease including the equine population present in the surrounding area of the infected camel farms. 相似文献
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Tejedor-Junco María Teresa González-Martín Margarita Corbera Juan Alberto Santana Ángelo Hernández Carmen Nieves Gutiérrez Carlos 《Tropical animal health and production》2019,51(1):257-260
Tropical Animal Health and Production - The aims of this cross-sectional study were to estimate the prevalence of IgG antibodies against Chlamydia abortus, the cause of enzootic abortion, in goats... 相似文献