منابع مشابه
Tug of War
civic education in America’s public schools has erupted in response to the terrorist attacks of September 11, 2001. Broadly speaking, liberal approaches to civic education have emphasized the need to resist jingoism and to explore why America induces such hatred in certain parts of the world. By contrast, conservative responses to 9/11 have emphasized our national virtues and the need to defend...
متن کاملA Tug of War
Early repolarization pattern (ERP) is a common ECG variant, characterized by J point elevation manifested either as terminal QRS slurring (the transition from the QRS segment to the ST segment) or notching (a positive deflection inscribed on terminal QRS complex) associated with concave upward ST-segment elevation and prominent T waves in at least two contiguous leads.1,2 The J point deflection...
متن کاملUbiquitin tug-O-war
U biquitin (Ub) conjugation regulates numerous cellular processes, yet past biochemistry experiments suggested that although cells have a lot of Ub, little of it is free. On page 19, Dantuma et al. show that recruiting Ub to one site pulls it off another and, thus, Ub may link otherwise distinct processes, such as protein degradation and gene transcription. GFP-Ub was evenly distributed in the ...
متن کاملEmotional Robotics: Tug of War
Emotional communication skills are dominant in biological systems. Despite the apparent complexity of creating and broadcasting emotional cues, the expression is concise, making them effective and advantageous for multi-agent environments where communication bandwidth is limited and in high demand. However, social robots run the risk of being deceived and used by an opponent using friendly emot...
متن کاملA chemokine tug-of-war
ny cell therapy risks introducing mutated and possibly tumorigenic cells. Now results from Peter Stambrook (University of Cincinnati, Cincinnati, OH) and colleagues underline this concern for embryonic stem (ES) cells, which are one possible source for therapeutic cells. Stambrook constructed a cell line in which he could detect loss or mutation of a heterozygous marker gene. Loss (rather than ...
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ژورنال
عنوان ژورنال: Science
سال: 2008
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.322.5906.1304a