Use of Mononitrophenols Containing Halogens as Selective Sea Lamprey Larvicides     

Applegate VC  Howell JH  Smith MA 《Science (New York, N.Y.)》1958,127(3294):336-338

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Volcanic Activity on lo at the Time of the Ulysses Encounter     

Spencer JR  Howell RR  Clark BE  Klassen DR  O'connor D 《Science (New York, N.Y.)》1992,257(5076):1507-1510

The population of heavy ions in lo's torus is ultimately derived from lo volcanism. Groundbased infrared observations of lo between October 1991 and March 1992, contemporaneous with the 8 February 1992 Ulysses observations of the lo torus, show that volcanic thermal emission was at the low end of the normal range at all lo longitudes during this period. In particular, the dominant hot spot Loki was quiescent. Resolved images show that there were at least four hot spots on lo's Jupiter-facing hemisphere, including Loki and a long-lived spot on the leading hemisphere (Kanehekili), of comparable 3.5-micrometer brightness but higher temperature.  相似文献   

Mutations in the RNA granule component TDRD7 cause cataract and glaucoma     

Lachke SA  Alkuraya FS  Kneeland SC  Ohn T  Aboukhalil A  Howell GR  Saadi I  Cavallesco R  Yue Y  Tsai AC  Nair KS  Cosma MI  Smith RS  Hodges E  Alfadhli SM  Al-Hajeri A  Shamseldin HE  Behbehani A  Hannon GJ  Bulyk ML  Drack AV  Anderson PJ  John SW  Maas RL 《Science (New York, N.Y.)》2011,331(6024):1571-1576

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甘肃省农业种质资源库建设现状及发展建议          下载免费PDF全文

肖静  田全红  王娜  达虎  马婧怡 《寒旱农业科学》2023,(6):506-509

为加强甘肃珍稀、濒危、特色地方品种和特有资源的保存,确保保存种质的遗传完整性,提高种质利用效率,对2018年甘肃省建设的7家特色农业种质资源库的功能定位、研究方向和保存情况进行了调研,分析了目前种质资源库在建设运行中存在的主要问题,从增强地方优异种质资源保护意识、加强种质资源深度评价与创新、加强合作与交流、加强人才队伍建设等方面提出了种质资源保护和利用的建议。  相似文献   

Howell Equine Handbook of Tendon and Ligament Injuries     

Howell Equine Handbook of Tendon  Ligament Injuries 《Journal of Equine Veterinary Science》2004,24(8)

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A review of downscaling methods for remote sensing-based irrigation management: part I     

Wonsook Ha  Prasanna H. Gowda  Terry A. Howell 《Irrigation Science》2013,31(4):831-850

High-resolution daily evapotranspiration (ET) maps would greatly improve irrigation management. Numerous ET mapping algorithms have been developed to make use of thermal remote sensing data acquired by satellite sensors. However, adoption of remote sensing-based ET maps for irrigation management has not been feasible due to inadequate spatial and temporal resolution of ET maps. Data from a coarse spatial resolution image in agricultural fields often cause inaccurate ET estimation because of a high level of spatial heterogeneity in land use. Image downscaling methods have been utilized to overcome spatial and temporal scaling issues in numerous remote sensing applications. In the field of hydrology, the image downscaling method has been used to improve spatial resolution of remote sensing-based ET maps for irrigation scheduling purposes and thus improves estimation of crop water requirements. This paper (part I) reviews downscaling methods to improve spatial resolution of land surface characteristics such as land surface temperature or ET. Each downscaling method was assessed and compared with respect to their capability of downscaling spatial resolutions of images. The companion paper (part II) presents review of image fusion methods that are also designed to increase spatial resolutions of images by integrating multi-spectral and panchromatic images.  相似文献   

小麦秆锈菌新小种Ug99及其抗病育种研究进展(英文)     

达龙珠  燕照玲  刘毓侠  刘文轩 《农业科学与技术》2012,(5):997-1002

为帮助我国小麦研究人员全面了解秆锈菌新小种-Ug99 及其对我国小麦生产的潜在威胁,呼吁加强 Ug99 及其变异小种传播与扩散的监控,加强抗病种质创新和持久性耐病新品种选育,提前预防 Ug99 的危害。对 Ug99 小种变异、致病力、分布扩散以及小麦及其亲缘种属抗病基因发掘、连锁分子标记筛选,抗性育种策略与进展,中国 Ug99 研究现状进行了总结,由此不难看出,Ug99 是容易发生小种变异、毒力极强、扩展速度较快的秆锈菌新小种,极有可能对世界小麦生产带来的全球性危害。应该加强小麦及其亲缘种属新抗病基因的发掘与利用和持久性耐病新品种的培育,控制和预防 Ug99 及其变异小种的危害。  相似文献   

Pharmacokinetics of lidocaine and its active metabolite monoethylglycinexylidide after a single intravenous administration in chickens (Gallus domesticus) anesthetized with isoflurane     

A. F. DA CUNHA  K. M. MESSENGER  R. W. STOUT  S. A. BARKER  J. G. NEVAREZ  P. QUEIROZ‐WILLIAMS  T. N. TULLY JR 《Journal of veterinary pharmacology and therapeutics》2012,35(6):604-607

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Tibial dyschondroplasia in broiler chickens in Western Canada   总被引：1，自引：0，他引：1  

C Riddell  J Howell  M M Kaye 《Avian diseases》1971,15(3):557-565

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Copper, zinc and iron levels in the cerebrospinal fluid of copper poisoned sheep     

S R Gooneratne  J M Howell 《Research in veterinary science》1979,27(3):384-385

Copper, zinc and iron levels were measured in cerebrospinal fluid (CSF) of normal and copper poisoned sheep. Copper values were within the range recorded for humans but zinc levels were six to 20 times and iron levels were 20 to 30 times higher than values reported for humans. The amount of copper, zinc and iron in the CSF did not increase in sheep dosed with copper and hence it is unlikely that the level of copper in the CSF is related to the changes in the nervous system that have been reported in copper poisoned sheep.  相似文献