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高中物理动能定理在不同问题中的应用
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作者 高超 《数理天地(高中版)》 2024年第14期8-9,共2页
高中物理的动能定理对于解决物理问题具有重要意义,既可以作为考点考查学生的掌握情况,还可以作为知识点对不同问题做出分析和解答.常见可以运用动能定理解题的问题有:变力做功问题、运动位移问题和多段运动过程问题,灵活应用动能定理... 高中物理的动能定理对于解决物理问题具有重要意义,既可以作为考点考查学生的掌握情况,还可以作为知识点对不同问题做出分析和解答.常见可以运用动能定理解题的问题有:变力做功问题、运动位移问题和多段运动过程问题,灵活应用动能定理解答这些问题,可以提高学生的解题效率,还能提高其综合能力. 展开更多
关键词 动能定理 高中物体 解题技巧
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关于高中物理解题策略的方法训练研究
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作者 杨慧 《数理化解题研究》 2019年第12期72-73,共2页
在高中物理教学活动中,为了有效的提高学生的物理学习效果,就需要切实培养学生的物理解题技能,引导学生可以很好的利用物理知识来解决物理问题,促进学生的综合发展,对此,下面就高中物理解题策略的相关训练方法进行研究.
关键词 高中物体 解题策略 训练
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Hypertension in the elderly: insights from recent research
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作者 Jun-Hua Wang Shan Zhou 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2010年第2期116-125,共10页
Hypertension is a leading cause of mortality and morbidity around the world and,prevalence of hypertension is increasing with aging.Hypertension in the elderly is associated with increased occurrence rates of sodium s... Hypertension is a leading cause of mortality and morbidity around the world and,prevalence of hypertension is increasing with aging.Hypertension in the elderly is associated with increased occurrence rates of sodium sensitivity,isolated systolic hypertension,and 'white coat effect'.Arterial stiffness and endothelial dysfunction also increase with age.These factors should be considered in selecting antihypertensive therapy.The prime objective of this therapy is to prevent stroke.The fmdings of controlled trials show that there should be no cut-off age for treatment.A holistic program for controlling cardiovascular risks should be fully discussed with the patient,including evaluation to exclude underlying causes of secondary hypertension,and implementation of lifestyle measures.The choice of antihypertensive drug therapy is influenced by concomitant disease and previous medication history,but will typically include a thiazide diuretic as the first-line agent;to this will be added an angiotensin inhibitor and/or a calcium channel blocker.Beta blockers are not generally recommended,in part because they do not combat the effects of increased arterial stiffness.The hypertension-hypoten-sion syndrome requires case-specific management.Drug-resistant hypertension is important to differentiate from faulty compliance with medication.Patients resistant to the third-line drug therapy may benefit from treatment with extended-release isosorbide mononitrate.A trial of spironolactone may also be worthwhile. 展开更多
关键词 HYPERTENSION ELDERLY antihypertensive treatment patient management
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