However, he's not fully convinced that this can happen within a single population, as the authors suggest.
然而,正如作者暗示的,这种进化可能发生在单个种群里面,对此他半信半疑。
Using method of qualitative theory of ordinary differential equation, studies economic harvesting model with variable price and cost for a single population.
利用常微分方程定性理论的方法讨论了价格成本变化的单种群经济捕获模型。
The effect of diffusion on the permanence of the population in a polluted patch is studied by setting up a single population diffusive system in two patches.
本文通过建立两斑块的单种群扩散系统,主要研究扩散对其中受污染的斑块上种群生存的影响。
The new algorithm was based on single population without intermediate population, in which mutation operation, crossover operation and selection operation were used on the current population.
该算法基于单种群,在演化过程中直接对当前种群进行变异、交叉和选择操作,无须差异演化算法中的中间过渡种群。
This time, he focused on what he calls the single most risky demographic on the road? Teenage boys? Whose crash rate is twice that of the general population.
这次,他把焦点集中在他所称的——路上最可能出风险的个体:男性多动症青少年,因为他们出事故的概率是普通人群的两倍。
Duplicate coding of verbal autopsy results has little advantage over a single-coder system for mortality surveillance or for identifying population patterns of death.
进行死亡率监测或确认人口死亡类型时,死因推断结果的双重编码与单个编码员系统相比优势较小。
Han Chinese account for more than 90 percent of the population and constitute the world's single largest racial-cultural group.
汉族占其人口的90%以上,是世界上最大的单种族文化民族。
In creating the rankings, Money looked at the percentage of the population that is single and the median income.
《Money》在制作这个排行榜的时候,考虑到了单身人群比重和中间收入这两个指标。
"There is no single gene, no single DNA marker, that would distinguish one population from another," Myers said.
“没有一个单独的基因,或单独的一个DNA标记,可以将不同的种群区分开来,”Myers说。
It is a moment to consider the rapid growth of a site whose 400m-plus users outnumber the population of any single country except India and China.
对于这样一家拥有逾4亿用户(超过除印度和中国以外任何一个国家的人口总数)的网站,人们是时候仔细琢磨一下它的快速增长了。
However, I no longer think that there was ever a single small population of humans in one region of Africa from whom we are all uniquely descended.
然而,我不再认为在非洲的一个地区曾经有过单独一小群人,我们都是他们唯一的后裔。
In order to replenish the population, the state instituted an aggressive pro-natalist policy to support single mothers.
为了补充人口,国家设立了一项激进的鼓励生育的政策,以此激励单身妈妈们。
The march of globalisation will create a single mega-population of people on the planet in which more and more viruses have the potential to survive and thrive.
全球化的趋势造就了我们这个人数众多连接紧密的星球,在这里,越来越多的病毒生存下来并茁壮成长。
As the population increased, it apparently remained localized in a single geographical region.
随着人口的增长,他们仍然明显地聚居在一个狭小的地理区域之内。
This single-celled fungus feeds on sugars and reproduces frequently—if it has enough to eat, a culture can double in population in 90 minutes.
这种单细胞生物吃糖,而且繁殖迅速——如果有足够的食料,他们的种群数量可以每九十分钟增加一倍。
Two single nucleotide polymorphisms (SNPs), both located onthe chromosomal region 2p35, had the highest degree of associationwith alcohol dependence in a relatively homogenous patient population.
两个都位于染色体上2P35区域的单核苷酸多态性(SNPs)对于在相关的同种疾病总数的酒精依赖上有着最高程度的相关性。
By limiting urban couples to a single child and most rural couples to two, China has managed to slow the growth of the world's largest population.
通过限制一对城市夫妇只准生1个小孩,绝大多数农村夫妇最多只准生2个小孩,中国作为世界人口数量最多的国家开始逐渐降低人口增速。
Single cell of INA bacteria can not act as ice nucleus, therefor the key to the study on the relationships between INA bacteria and frost injury to plants is to study the population of INA bacteria.
由于单个的冰核细菌细胞并不具有冰核活性,因此,研究植物上冰核细菌的种群数量或密度是研究冰核细菌与植物霜冻害关系的关键。
That's why when my Chinese friends ask me about my opinion about the large population of China, my single answer it's same as in India!
这就是为什么当我的中国朋友问我对人口众多的中国的看法时,我唯一的答案是跟印度一样!
Pedigree is one of the most general population structure in the genetic linkage analysis between human single genetic inheritance disease locus and genetic marker locus.
在人类单位点致病基因与遗传标记基因的遗传连锁分析中,家系是应用得最普遍的一种群体结构。
According to different economy conditions and population features in different areas, single or combined application of these several methods is of important significance.
根据不同地区的经济条件和人群特征,这些筛查方式单独或联合使用对宫颈癌及癌前病变的检出均具有很大的临床意义。
Objective To investigate the single nucleotide polymorphisms (SNP) in the promoter region of mannan-binding lectin (MBL) gene in a Han population in Guangdong Province.
目的研究广东汉族人群甘露聚糖结合凝集素(MBL)基因启动子单核苷酸多态性(snp)。
Firstly, we propose and study the single-species discrete population model with stage structure and birth pulses.
在第二章,我们研究了密度依赖生育脉冲对单种群阶段结构离散模型的动力学行为的影响。
The yearly population density fluctuates in a single peak.
全年种群密度变化呈单峰型。
This paper describes a method which has been used for stand population selection and classification based on the plus trees selection principle of a single tree.
本文将林木树种单株选优原则和方法运用到林木群体选择和划分上。
When the induction conditions were improved, people began to focus on whether the single phenotypic cell population as experimental objects can improve the induction efficiency or not.
在改进诱导条件的同时人们开始关注单一表型的细胞群作为实验对象是否能有效地提高诱导效率。
When the induction conditions were improved, people began to focus on whether the single phenotypic cell population as experimental objects can improve the induction efficiency or not.
在改进诱导条件的同时人们开始关注单一表型的细胞群作为实验对象是否能有效地提高诱导效率。
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