The Role of Assortative Mating on Population Growth in Contemporary Developed Societies

2006 ◽  
pp. 61-84 ◽  
Author(s):  
Mike Murphy
Keyword(s):  
Population Growth ◽  
Assortative Mating

PERAN MASYARAKAT TERHADAP PEMBAYARAN RETRIBUSI SAMPAH DI KOTA SAMARINDA

2018 ◽  
Vol 2 (1) ◽  
pp. 33
Author(s):  
Abd Rachim AF,
Keyword(s):  
Waste Management ◽  
Population Growth ◽  
Frequency Analysis ◽  
Urban Areas ◽  
Relative Frequency ◽  
Environmental Problems ◽  
Living Standards ◽  
The Public ◽  
And Behavior

One of the environmental problems in urban areas is the pollution caused by garbage. The waste problem is caused by various factors such as population growth, living standards changes, lifestyles and behavior, as well as how the waste management system. This study aims to determine how the role of society to levy payments garbage in Samarinda. This research was descriptive; where the data is collected then compiled, described and analyzed used relative frequency analysis. The participation of the public to pay a "levy junk", which stated to pay 96.67%, for each month and the rates stated society cheap, moderate and fairly, respectively 46.08%, 21.21%, 21.04%. Base on the data , the role of the community to pay "levy junk" quite high.

Plant Resistance in Some Modern Soybean Varieties May Favor Population Growth and Modify the Stylet Penetration of Bemisia tabaci (Hemiptera: Aleyrodidae)

2021 ◽  
Author(s):  
Mauricélia F Almeida ◽  
Clébson S Tavares ◽  
Euires O Araújo ◽  
Marcelo C Picanço ◽  
Eugênio E Oliveira ◽  
...  
Keyword(s):  
Population Growth ◽  
Bemisia Tabaci ◽  
Intrinsic Rate ◽  
Reproductive Rate ◽  
Genetically Engineered ◽  
Population Increase ◽  
Net Reproductive Rate ◽  
Bt Toxin ◽  
Demographic Performance

Abstract Complaints of severe damage by whiteflies in soybean fields containing genetically engineered (GE) varieties led us to investigate the role of transgenic soybean varieties expressing resistance to some insects (Cry1Ac Bt toxin) and to herbicide (glyphosate) on the population growth and feeding behavior of Bemisia tabaci (Gennadius) MEAM1 (Hemiptera: Aleyrodidae). In the laboratory, the whiteflies reared on the GE Bt soybeans had a net reproductive rate (R0) 100% higher and intrinsic rate of population increase (rm) 15% higher than those reared on non-GE soybeans. The increased demographic performance was associated with a higher lifetime fecundity. In electrical penetration graphs, the whiteflies reared on the GE soybeans had fewer probes and spent 50% less time before reaching the phloem phase from the beginning of the first successful probe, indicating a higher risk of transmission of whitefly-borne viruses. Data from Neotropical fields showed a higher population density of B. tabaci on two soybean varieties expressing glyphosate resistance and Cry1Ac Bt toxin. These results indicate that some GE soybean varieties expressing insect and herbicide resistances can be more susceptible to whiteflies than non-GE ones or those only expressing herbicide resistance. Most likely, these differences are related to varietal features that increase host-plant susceptibility to whiteflies. Appropriate pest management may be needed to deal with whiteflies in soybean fields, especially in warm regions, and breeders may want to consider the issue when developing new soybean varieties.

The Role of Personality and Intelligence in Assortative Mating

2012 ◽  
Vol 15 (2) ◽  
pp. 680-687 ◽  
Author(s):  
Sergio Escorial ◽  
Carmen Martín-Buro
Keyword(s):  
Socioeconomic Status ◽  
Empirical Evidence ◽  
Assortative Mating ◽  
Big Five ◽  
Educational Level ◽  
Big Five Model ◽  
Two Measures ◽  
Effect Of Age

Assortative mating is the individuals' tendency to mate with those who are similar to them in some variables, at a higher rate than would be expected from random. This study aims to provide empirical evidence of assortative mating through the Big Five model of personality and two measures of intelligence using Spanish samples. The sample consisted of 244 Spanish couples. It was divided into two groups according to relationship time. The effect of age, educational level and socioeconomic status was controlled. The results showed strong assortative mating for intelligence and moderate for personality. The strongest correlations for Personality were found in Openness, Agreeableness and Conscientiousness.

The Role of Social Media in Shaping Tourists' Travel Decisions

2020 ◽  
pp. 52-65
Author(s):  
Sandeep Basnyat ◽  
Yuan Jiahui
Keyword(s):  
Social Media ◽  
Population Growth ◽  
New Technologies ◽  
Payment System ◽  
International Travel ◽  
Chinese Tourists ◽  
Multiple Levels ◽  
Travel Decisions ◽  
Chinese Individual

With increased economic and population growth, air connectivity, and travel facilities, international travel of Chinese citizens has tremendously increased. Although usually in groups, there has been a growing trend among Chinese tourists toward travelling independently. These independent travellers or so-called ‘new tourists' are highly exposed to new technologies and social media and prefer to do research about possible destinations, and new travel routes and activities that package tours usually do not include. This chapter examines how social media in general and WeChat, in particular, shapes the Chinese individual travellers' travelling decisions. As will be seen, while WeChat's popularity among the Chinese outbound tourists is largely attributed to its multi-functionality, its influences on their destination visitation choice are found in multiple levels: by providing illuminating information, allowing users to integrate their payment system easily to their bank accounts in China, and providing means to obtain discounts and promotional offers in a variety of ways.

scholarly journals The impact of highways on population redistribution: the role of land development restrictions

2019 ◽  
Vol 20 (3) ◽  
pp. 783-808 ◽  
Author(s):  
Or Levkovich ◽  
Jan Rouwendal ◽  
Jos van Ommeren
Keyword(s):  
Spatial Distribution ◽  
The Netherlands ◽  
Population Growth ◽  
Land Development ◽  
Apparent Effect ◽  
Population Redistribution ◽  
Interaction Variables ◽  
Peripheral Areas ◽  
The Impact

Abstract We study the role of land development restrictions for the effects of highway expansion on the spatial distribution of population for the Netherlands. Introducing an IV approach to address multiple endogenous interaction variables, our findings show that new highways accelerated population growth in peripheral areas, but had no apparent effect in suburban municipalities, in line with the presence of development restrictions. Highway expansions caused a ‘leapfrog’ pattern in which suburban growth skipped development-restricted areas and expanded into farther located peripheral areas.

scholarly journals Natural Geography and Patterns of Local Population Growth and Decline in Spain: 1960–2011

2019 ◽  
Vol 11 (18) ◽  
pp. 4979 ◽  
Author(s):  
Adelheid Holl
Keyword(s):  
Population Growth ◽  
Rural Areas ◽  
Urban Areas ◽  
Population Change ◽  
Local Population ◽  
Growth Patterns ◽  
Detailed Data ◽  
Precipitation Seasonality ◽  
Growth Variation

This paper analyzes the role of natural geography for explaining local population change patterns. Using spatially detailed data for Spain from 1960 to 2011, the estimation results indicated that natural geography variables relate to about half of the population growth variation of rural areas and more than a third of the population growth variation of urban areas during this period. Local differences in climate, topography, and soil and rock formation as well as distance to aquifers and the coast contribute to variations in local population growth patterns. Although, over time, local population change became less related to differences in natural geography, natural geography is still significantly related to nearly a third of the variation in local population change in rural areas and the contribution of temperature range and precipitation seasonality has even increased. For urban areas, weather continues to matter too, with growth being higher in warmer places.

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