Quality assurance at the heavy-ion therapy facility at GSI

Strahlentherapie und Onkologie - In the present stage between the technological realization and the clinical phase, quality management gains a predominant role at the heavy ion therapy facility at...     

world at play

Hotel managers are discovering that exercises facilities—from complete health clubs to jogging trails—will attract business and pleasure travelers.     

高住高练低训对男子大学生运动员安静状态下左心室功能的影响

目的:探讨高住高练低训(HiHiLo)对运动员安静状态下左心室功能的影响。方法:大学生运动员在O2浓度相当于海拔2800m~3000m的常压低氧舱房每天居住10小时,在O2浓度相当于海拔2500m~2600m的室内每周训练3次,期间维持常氧训练,实验为期4周;采用超声心动图技术,于HiHiLo前后分别测量48名受试者心脏在安静时的形态结构学指标、收缩功能指标及舒张功能指标。结果:与HiHiLo前相比,4周后受试者左心室形态结构学指标中的LVIDd(左室舒张末期内径)、LVM(左室心肌质量)和LVMI(左室心肌质量指数)分别增加了0.93%(P=0.007)、2.87%(P=0.009)和3.59%(P=0.002);泵功能及舒张功能方面,SV(每搏量)、SI(每搏指数)和EDV(舒张末期容积)分别增加了1.99%(P=0.001)、2.71%(P=0.000)和0.97%(P=0.032),且DSV(每搏量变化量)与DEDV(舒张末期容积变化量)之间存在相关关系;DP(二项乘积)下降了9.35%(P=0.000)。结论:4周HiHiLo后受试者的左心室除产生了生理性肥厚外,其泵功能也显著改善,主要体现在舒张功能明显增强,而且心肌耗能趋向节约化。     

Experiences at the new magnetic resonance imaging centre at Bristol

The magnetic resonance imaging unit in Bristol has been housed in a new purpose-built centre, shared between three District Health Authorities, but operated entirely separate from the National Health Service. Inasmuch as this is thought to be a unique arrangement, the publication of its finances and statistics have been readily tabulated at the end of its first year's operation, and may be of interest to others planning a similar organization.     

World at play

Even though ski instruction may mean transiently increased risks for the skier, lessons can ultimately mean safer, more enjoyable skiing.     

world at play

In brief: Millions of divers, swimmers, and other ocean-goers may encounter jellyfish. If they are stung, they may need either first aid if the case is mild, or extensive treatment if they suffer anaphylaxis, cardiorespiratory problems, or long-term reactions. Some severe cases may even be fatal. The author describes the mechanisms of envenomation and tissue reaction and discusses how to recognize and treat both the immediate and late sequelae.     

world at play

East Germany has a long-established reputation for producing some of the world's finest athletes. But now that the reunification of Germany is becoming more likely, many people wonder whether the winning tradition will be lost