Vertebrate sex ratios are notorious for their lack of fit to theoretical models, both with respect to the direction and the magnitude of the sex ratio adju... T Uller - 《Biological Reviews》 被引量: 195发表: 2006年 Male twins reduce fitness of female co-twins in humans In mammals, inclu...
This paper proposes a novel strategy by combing OBM(Orthogonal-band Multiplexing) and clipping to reduce the peak to average ratio in CO-OFDM systems.The basic principle of this strategy is to partition the CO-OFDM into multiple sub-band to decrease the sample points of IFFT,and then combine...
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Optional factors included being a smoker, a low maternal weight-height ratio, being age 27 or older, and a previous premature birth. A 21-item family function screen previously validated in a similar population was the primary determinant of psychosocial risk. Low birth weight was defined as ...
REDUCEAR TYPE 18 RATIO 50:1 THREE THASE MOTOR成钢减速电机STS 价格说明 价格:商品在爱采购的展示标价,具体的成交价格可能因商品参加活动等情况发生变化,也可能随着购买数量不同或所选规格不同而发生变化,如用户与商家线下达成协议,以线下协议的结算价格为准,如用户在爱采购上完成线上购买,则最终以订单结算页价格...
ObjectivesTo develop a comprehensive intervention plan for the REDUCE maintenance intervention to support people who have had diabetic foot ulcers (DFUs) to sustain behaviours that reduce reulceration risk.MethodsTheory-based, evidence-based and person-based approaches to intervention development were use...
TOKYO, May 15 (Xinhua) -- The Japanese government is planning to reduce the number of people with dementia by setting quantifiable targets to lower the ratio of patients in their 70s, over a six-year period until 2025, sources close to the matter said Wednesday. ...
In two studies comparing hospitals with and without a FLS, the adjusted hazard ratio (HR) for subsequent fractures was significantly lower in the FLS hospitals (HR: 0.84 during the first year, 0.44 during the second year for subsequent NVFs after baseline NVF, and 0.67 during the third year ...
二、Low-dimensional density ratio estimation for covariate shift correction 这篇文章指出协变量的维度过高也会对导致学到的权重的方差过大,因此这篇文章从降维的角度减小权重的方差,同时在降维的过程中考虑了协变量X和目标变量Y之间的相关性。因此这篇文章将第一阶段,即权重学习阶段又细分成两个步骤: ...
当您的业务量需求不断波动,并且您对自己的业务有较好的了解,建议您开启弹性伸缩功能并配置相应的伸缩规则,E-MapReduce(简称 EMR)能够根据业务量的变化自动增加或减少Task节点,从而确保顺利完成作业并节省成本。本文为您介绍如何配置自定义弹性伸缩策略。 前提条件 ...