Because the acetyl wasn't present in young 3-month-old mice, the study concludes that it ACTS as a switch for a cluster of learning and memory genes.

由于这种醋酸基在3个月大的白鼠脑中并不存在，研究显示这种醋酸基扮演了学习和记忆基因群组开关的角色。

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The cluster of learning and memory genes on the surrounding DNA ends up close to the acetyl group.

DNA周围的学习和记忆基因束靠近乙酰基群，注入一种能促进乙酰基群变成任何一种组蛋白分子的酶。

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Every week they recompute their machine learning models for categories in a science Hadoop cluster.

每个星期，他们在Hadoop科研集群上重新计算他们关于类别的机器学习模式。

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By combining the assessments with cluster-based teacher training and support, learning outcomes improved in certain grades by 30% over six years (GMR 2009).

UNESCO: The Director-General meets the President of Uruguay

First, many schools are embarking upon a variety of design processes, RFPs from vendors and the like only to arrive at the same cluster of solutions centered around the basic models of blended learning we identified here.

FORBES: Steps and Leaps Into Next-Gen Learning

While still at McKinsey, Artun wrote a machine learning algorithm that clustered customers who tended to buy items similar to each other and related that cluster to various sales coverage efforts, which were the items that salespeople seemed to be most comfortable selling together, and built a matching algorithm to match salespeople with customers.

FORBES: AgilOne: How Machine Learning Can Restore Customer Intimacy