美国医学会期刊的主要目标及有关情况

1988年6月1日,美国医学会代表团一行三人,应中华医学会的邀请,在北京作了有关编辑、出版、印刷、发行等一系列问题的学术报告。现将《美国医学会杂志》总编辑George D.Lundberg医学博士报告的录音记录稿整理成文,发表如下。     

AC米兰第六次夺冠

At the end,after nearly three hours of pent-up(压抑的)tension.aftercoming so close in normal time via Filippo Inzaghi’s 17th-minuteheader,then being braver in extra-time and finally more composed inthe penalty shoot-out.the players of Milan erupted like a cloudburst asAndrei Shevchenko’S cool penalty rolled into the back of the Old Trafford net.     

黑客帝国2:重装上阵

In this second chapter of the "Matrix" trilogy, Neo assumes greater command of his extraordinary powers as Zion falls under siege ( 包围,围攻) to the Machine Army. Only a matter of hours separates the last human enclave on Earth from 250, 000 Sentinels ( 士兵) programmed to destroy mankind. But the citizens of Zion, emboldened by Morpheus conviction that the One will fulfill the Oracles Prophecy and end the war with the Machines, rest all manner of hope and expectation on Neo, who finds himself stalled by disturbing     

2002游戏盘点

This year's biggest phenomenons 1.Sex and Violence (性和暴力): Mature content in console games created controversy(论战). Grand Theft Auto: Vice City returned to give lawmakers nightmares, and Sony censors the PS2 version of BMX XXX. Strangely, we have yet to see dramatic increases in     

“我才18岁便是一名市长”

Michael Sessions thought his town needed help - so he decided to take action...迈克尔·塞申斯认为自己的城市需要帮助——因而他决定采取行动……我在密歇根州一个叫希尔斯代尔的城里长大。爸爸在当地的汽车配件厂里担任主管,在那里工作了26年。在我15岁那年的某一天,爸爸下班回家后伤心地对妈妈、妹妹和我说:“我们公司快要搬到墨西哥去了。我被解雇了”我     

老师的魔力

笑一笑吧,为了这位老师的苦心,也为了他那令人忍俊不禁的睿智!     

论犬

陪审团的各位先生们,一个人在世间最好的朋友也可能会背叛他,并与他反目成仇;就算是他自己悉心养育的儿女也可能变得忤逆不孝;那些我们身边关系最亲近的人,那些我们愿意与之分享幸福与名节的人也可能违背他们的诺言;一个人也随时可能丧失他所拥有的金钱,可能就在他最需要钱的时候,他变得身无分文。     

A configural theory of attention and associative learning

A formal account of the relationship between attention and associative learning is presented within the framework of a configural theory of discrimination learning. The account is based on a connectionist network in which the entire pattern of stimulation presented on a trial activates a configural unit that then enters into an association with the trial outcome. Attention is assumed to have two roles within this network. First, the salience of the stimuli at the input to the network can be increased if they are relevant to the occurrence of reinforcement and decreased if they are irrelevant. Second, the associability of configural units can increase on trials when the outcome is surprising and decrease when the outcome is not surprising.