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7篇 您的检索式:作者名="A.Howard"
    题名 作者 年代 出处 被引量
1Age‐Related Osteogenic Potential of Mesenchymal Stromal Stem Cells from Human Vertebral Bone Marrow显示文摘GianlucaD'Ippolito Paul C.Schiller CamilloRicordi Bernard A.Roos Guy A.Howard 2009J Bone Miner Res2009,,7:2
2The State of Play in the Negotiations on TRIPS (GATT/Uruguay Round)显示文摘J.Reinbothe A.Howard 0,,05:1
3New complex physiological findings evolve hypothesized mechanisms of Dravet syndrome显示文摘Developmental and epileptic encephalopathies(DEEs)are neurological disorders generally involving medically intractable seizures and a diverse array of comorbid neuropsychiatric delays and deficits that may severely affect cognition,mood,sleep,social behavior,movement control,learning,and/or memory.Dravet syndrome(DS),also known as Severe Myoclonic Epilepsy of Infancy.MacKenzie A.Howard 2024Neural Regeneration Research2024,19,9:0
4Complementary Phenotyping of Maize Root System Architecture by Root Pulling Force and X-Ray Imaging显示文摘The root system is critical for the survival of nearly all land plants and a key target for improving abiotic stress tolerance,nutrient accumulation,and yield in crop species.Although many methods of root phenotyping exist,within field studies,one of the most popular methods is the extraction and measurement of the upper portion of the root system,known as the root crown,followed by trait quantification based on manual measurements or 2D imaging.However,2D techniques are inherently limited by the information available from single points of view.Here,we used X-ray computed tomography to generate highly accurate 3D models of maize root crowns and created computational pipelines capable of measuring 71 features from each sample.This approach improves estimates of the genetic contribution to root system architecture and is refined enough to detect various changes in global root system architecture over developmental time as well as more subtle changes in root distributions as a result of environmental differences.We demonstrate that root pulling force,a high-throughput method of root extraction that provides an estimate of root mass,is associated with multiple 3D traits from our pipeline.Our combined methodology can therefore be used to calibrate and interpret root pulling force measurements across a range of experimental contexts or scaled up as a stand-alone approach in large genetic studies of root system architecture.M.R.Shao N.Jiang M.Li A.Howard K.Lehner J.L.Mullen S.L.Gunn J.K.McKay C.N.Topp 2021Plant Phenomics2021,3,1:0
5肉的涵义与如何变化显示文摘我们所食用的肉类可大致描述为:由动物骨架支撑的肌肉和脂肪组织,同时肌肉和脂肪组织又将骨架相连,使其自由活动。为控制这些活动,活体动物的肌肉组织应能够拉伸和收缩。收缩时产生张力进行活动。拉伸和收缩能力的重要性将在该校以后讲座中谈到。A.Howard 2006当代畜禽养殖业2006,0,Z1:0
6嫩度的品尝测试方法显示文摘消费者的反应最终决定所有产品的销售潜力,肉类也不例外。从方便性角度来看,有必要使用某些可代替消费者反应的客观物理或化学测试方法。当缺乏该方法时,就必须使用品尝技术,即使该方法存在,也必须以品尝测试方法为基准。因此,品尝测试方法在肉类研究中起重要作用,通常是工厂必不可少的质量控制程序。有2种品尝测试方法。一种是消费者品尝法(Customer Taste Tests):即在自由条件下让大众品尝。A.Howard 2006当代畜禽养殖业2006,0,Z1:0
7嫩化速度与程度显示文摘肉在僵直完成后肉质会重新变嫩。生肉物理性质变化不大,但是如果把承受机械变形(machnical distortion)能力的各种测试用于煮熟的肉,即可发现明显变化。引起僵直发生的化学变化不明,结果生成次黄嘌呤(hypoxanthine),是A.T.P.的分解的最终产物。我们尚且无法了解该进程是否是嫩化必须过程,但有证据其与嫩化同样受到温度和pH值影响。次黄嘌呤的生成可用作判断嫩化是否发生的大致依据,但无助于确定实际嫩化程度。A.Howard 2006当代畜禽养殖业2006,0,Z1:0
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