Sentences with phrase «differences in population size»

Rather optimistically, Price even argues that differences in population size alone account for «mighty minnows» outperforming the big five (UK, Italy, Germany, France and Spain) between 1997 and 2007.

The difference in population size and the fact that the systems are first party is noted.

Not exact matches

Researchers of the Canadian study says factors such as work, urban size, population density, economic opportunity or deprivation, and access to and quality of infrastructure, amenities and services may explain the community - level differences in life satisfaction.

Previous attempts to evaluate the Baby Friendly Initiative within an observational study design have often been limited by small sample size or reliance upon ecological measures of confounding factors.16, 17 The advantage of the Millennium Cohort Study is the availability of individual - level social and demographic information, as well as the circumstances of pregnancy and delivery, allowing adjustment for factors that in other studies may be associated with both policy intervention and infant feeding practices, via area or individual population differences.

A gendered difference in sexual behaviour of this size has only been observed for Muslim populations.

By examining bits of DNA called microsatellites, which mutate rapidly, Goossens was able to trace individual genetic differences back to a common ancestor and estimate the size of the orangutan population at different times in the past.

The lack of genetic differences in Namibian elephants could also be attributed to their long distance migrations; large home ranges; recent increases in population size and range; or gene flow provided by male elephants breeding with different groups of female elephants.

The groups that evolved into bonobos, chimps, and humans all retained slightly different subsets of this ancestral population's diverse gene pool — and those differences now offer clues today to the size and range of diversity in that ancestral group.

Although participants in PROUD were much more likely to have had rectal infections and to have used post-exposure prophylaxis than was the overall population of men who have sex with men attending sexual health clinics, the authors say the size of the difference in HIV incidence was still surprising.

The difference between age indifferent preference (model AP) and preference for younger females (model YF) in producing a menopausal effect was robust across population sizes and mutation rates.

We estimated the neutral mutation parameter (4Neμ for autosomal loci and 3Neμ for X-linked loci), where Ne is the effective population size and μ is the mutation rate per site per generation, using two estimators: Watterson's θw [67], the proportion of segregating sites in a sample, and π [68], the average number of pairwise differences per sequence in a sample.

Stable isotope results show only very slight differences between ancient and modern whales, indicating the hypothesis of population substructure in the past around the area of the Olympic peninsula / Vancouver Island remains a possibility and warrants further investigation using larger sample sizes.

A one - size - fits - all approach isn't practical because of the significant differences in local geology and surface conditions — population, building conditions, infrastructure, critical facilities and seismic monitoring capabilities.

In both cases, the histogram densities for each origin sum to «1.0», and the dataset does not provide any absolute metrics about the population size of individual origins, or relative population size differences across origins.

Analyses were carried out with 2312 students in Grade 7 (mean age = 13.22; SD = 0.61) and 2421 students in Grade 9, the marginal difference in sample sizes being caused by a change in student population, due to absenteeism at one measurement point.

An effect size refers to the difference in mean scores between 2 populations (eg, children referred with ADHD vs nonreferred children) divided by an estimate of the individual standard deviation.

year Publication year, N total sample size, #ES amount of effect sizes, AC child age category of the child at the start of the program, Design research design, PCDC parent child development centers, CB community - based, CPEP child — parent enrichment project, FGDM family group decision making, HS healthy start, PCIT parent — child interaction therapy, CBFRS community - based family resource service, PUP parents under pressure, SEEK safe environment for every kid, HF healthy families, STEP systematic training for effective parenting, TPBP teen parents and babies program, TEEP Turkish early enrichment project, IFPS intensive family preservation services, ACT adults and children together, CBT cognitive behavioral therapy, PSBCT parent skills with behavioral couples therapy, PCTT parents and children talking together, FIRST family information, referral and support team, NFP nurse family partnership, HSYC healthy steps for young children, REACH resources, education and care in the home, PMD parents make the difference, CPC child — parent center, MST - BSF multisystemic therapy — building stronger families, PriCARE primary child — adult relationship enhancement, SSTP stepping stones Triple P, CAMP Colorado adolescent maternity program, STEEP steps toward effective and enjoyable parenting, FGC family group conferences, MST - CAN multisystemic therapy for child abuse and neglect, PAT parent as teachers, CM case management, CPS child protective services, NS not specified, QE quasi-experimental, RCT randomized controlled trial, R risk group, GP general population, M maltreating parents