[The text in this section was written by Rich Kliman and was copied without permission from http://www2.cedarcrest.edu/academic/bio/rkliman/BIO231/STUDY231/x-prob.htm.] In a real population of interbreeding organisms, the different alleles of a gene may not be represented at equal frequencies. This doesn’t mean there’s something amiss with respect to Mendel’s laws. The individual crosses that p...

History shows that migration usually moves from areas where population is growing fast to regions where this increase is slower. At present, immigration from poor regions to richer coun tries outstrips emigration from developed countries. A century ago in Europe and now in the poorest countries, migration has relieved tensions bred by declining mortality and accelerating popula tion growth. The...

The present paper proposes the development of a three-level thresholding based image segmentation technique for real images obtained from CT scanning of a human head. The proposed method utilizes maximization of fuzzy entropy to determine the optimal thresholds. The optimization problem is solved by employing a very recently proposed population-based optimization technique, called biogeography ...

In response to Ian Lustick’s article on Israel’s migration balance in the previous issue of Israel Studies Review, I question the author’s (lack of) theoretical frame, data handling, and conclusions, all set up against a robust narrative. I show that, until 2010, Israel displayed a positive, if weakened, migration balance and that immigration trends continued to reflect conditions among Diaspor...

BACKGROUND Although African immigrants represent a large and growing segment of the U.S. population, there are little or no data available on the prevalence of cardiovascular disease (CVD) risk factors among this diverse population. This study compared the prevalence of self-reported CVD risk factors and health behaviors and examined the associations between immigration related characteristics ...

Direct demographic density dependence is necessary for population regulation and is a central concept in ecology, yet has not been studied in many invasive species, including any invasive marine fish. The red lionfish (Pterois volitans) is an invasive predatory marine fish that is undergoing exponential population growth throughout the tropical western Atlantic. Invasive lionfish threaten coral...

Abstract This Article offers an integrated analysis of the combined effect presence migration bans and absence BLAs in domestic work emigration regime Nepal. It identifies, acknowledges, critiques, contributes to critical literature highlighting entrapment processes labor relations immigration regimes by demonstrating such regime. Drawing on empirical findings a participatory action research (P...

Collective decisions in animal groups emerge from the actions of individuals who are unlikely to have global information. Comparative assessment of options can be valuable in decision-making. Ant colonies are excellent collective decision-makers, for example when selecting a new nest-site. Here, we test the dependency of this cooperative process on comparisons conducted by individual ants. We p...

Abstract Labour migration in the context of South-South is generally conceived as a multidimensional process that comprises three distinct subprocesses: emigration, immigration, and return migration. There growing consensus least understood these subprocesses. In similar vein, gendered analysis has become more integral to scholarship today; yet one area where gender matters but not been thoroug...