证伪还是证实——电影研究中的真命题与假命题

讨论了电影学的肢解和分离，认为当下的电影研究不光是愧对电影的创作，更是愧对电影学本身的学术地位和学术尊严。讨论了电影研究中的真假命题，并对“商业电影与艺术电影”、“电影的本体研究”这2个假命题进行了剖析。认为中国电影理论工作者的历史责任是应多写些实实在在的文章，在电影的分支、细节、前沿交叉上多做一些实证研究，努力构建一个有影响力的学术话语场所和批评场所，在电影产业和电影观众之间搭起一座很舒坦的桥梁。

Blood Coagulation Measuring Technology with Magnetoresistive Sensor

Although the measurement with double coil and a magnetic steel ball can resolve the interference problem of high blood fat,jaundice and haemolytic blood completely,this technique is too complex,and the blood coagulation analyzer produced by its principle is very expensive.In the paper,a new kind of blood coagulation detection technique based on magnetoresistive sensor is introduced, which uses a small,low cost,high sensitivity and high reliability magnetic sensor to detect the track of the magnetic steel ball,and then according to the magnitude of the ball movement the time of blood coagulation can be obtained.This method is simple,rapid,accurate,cheap,sensitive and good in repetition,and might be a valuable method for blood coagulation detection in the clinical laboratory.