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| 1 | Amelioration of Salt Stress in Sugarcane (Saccharum officinarum L.) by Supplying Potassium and Silicon in Hydroponics显示文摘A hydroponics experiment was conducted to evaluate the role of potassium (K) and silicon (Si) in mitigating the deleterious effects of NaCl on sugarcane genotypes differing in salt tolerance.Two salt-sensitive (CPF 243 and SPF 213) and two salt-tolerant (HSF 240 and CP 77-400) sugarcane genotypes were grown for six weeks in 1/2 strength Johnson's nutrient solution.The nutrient solution was salinized by two NaCl levels (0 and 100 mmol L 1 NaCl) and supplied with two levels of K (0 and 3 mmol L 1) and Si (0 and 2 mmol L 1).Applied NaCl enhanced Na + concentration in plant tissues and significantly (P ≤ 0.05) reduced shoot and root dry matter in four sugarcane genotypes.However,the magnitude of reduction was much greater in salt-sensitive genotypes than salt-tolerant genotypes.The salts interfered with the absorption of K + and Ca 2+ and significantly (P ≤ 0.05) decreased their uptake in sugarcane genotypes.Addition of K and Si either alone or in combination significantly (P ≤ 0.05) inhibited the uptake and transport of Na + from roots to shoots and improved dry matter yields under NaCl conditions.Potassium uptake,K + /Na + ratios,and Ca 2+ and Si uptake were also significantly (P ≤ 0.05) increased by the addition of K and/or Si to the root medium.In this study,K and Si-enhanced salt tolerance in sugarcane genotypes was ascribed to decreased Na + concentration and increased K + with a resultant improvement in K + /Na + ratio,which is a good indicator to assess plant tolerance to salt stress.However,further verification of these results is warranted under field conditions. | M.ASHRAF RAHMATULLAH R.AHMAD A.S.BHATTI M.AFZAL A.SARWAR M.A.MAQSOOD S.KANWAL | 2010 | Pedosphere2010，20，2： | 13 |
| 2 | 钙化斑块:薄层平板CT和64层螺旋CT的面积测量及与组织病理学的对比显示文摘目的本研究的目的是使用多层螺旋CT和平板容积CT对离体冠状动脉标本进行检查,以病理结果为标准,比较其钙化斑块的面积,评估两者的溢出伪影。 | A.Sarwar J.Rieber E.A.Q.Mooyaart S.K.Seneviratne S.L.Houser F.Bamberg 李树荣 | 2008 | 国际医学放射学杂志2008，31，A06： | 9 |
| 3 | 基于高效场强发生器的辐射抗扰度测试新概念显示文摘介绍了一种新颖、高效率、低成本的场强放射器,它一体化地集成了天线和功率放大器,克服了传统的电磁兼容辐射抗扰难点。尽管场强发生器的概念对场强和频率范围没有特别限定,但为了与IEC61000-4-3中1-6GHz的三米法测试要求对比,对这种方法产生的10V,m的系统指标进行了验证,并讨论了方案的优点和系统实现的挑战,同时也给出了仿真和测试结果。 | A.Sarwar V.Keyser 肖疆 | 2015 | 安全与电磁兼容2015，0，5： | 0 |
| 4 | 高分辨率平板容积CT对患有神经性厌食症少女的桡骨远端骨小梁结构的分析显示文摘目的 对患有神经性厌食症(AN)少女分别行高分辨率平板容积CT检查骨小梁微结构和双能X线吸收测定(DXA)检测骨密度(BMD),所获结果与正常体质量对照组的结果进行比较。材料与方法 本研究经机构审查委员会批准并遵从HIPAA的规定。检查对象签署知情同意书。分别对10例患轻度神经性厌食症(平均年龄15.9岁;范围13~18岁)和10位年龄及性别匹配的正常体质量(平均年龄:15.9岁:范围12~18岁)共20位少女行平板容积CT桡骨远端扫描, | M.A.Bredella M.Misra K.K.Miller I.Madisch A.Sarwar A.Cheung 王高峰 | 2009 | 国际医学放射学杂志2009，32，1： | 0 |
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