نتایج جستجو برای: native population

تعداد نتایج: 787057  

2009
Henry W W Potts

We are in a period of rapid technological change and much of society is endlessly playing catch-up, coming to terms with the implications of and uses for new developments. Each new development brings both enthusiasts and sceptics, and debate over Wikipedia has followed a familiar pattern. That same pattern has been played out in higher education, with the added contrast between a younger studen...

2010
K. Maton

The idea of the ‘digital natives’, a generation of tech-savvy young people immersed in digital technologies for which current education systems cannot cater, has gained widespread popularity on the basis of claims rather than evidence. Recent research has shown flaws in the argument that there is an identifiable generation or even a single type of highly adept technology user. For educators, th...

Journal: :Marketing Science 2016
Dae-Yong Ahn Jason A. Duan Carl F. Mela

This paper considers the creation and consumption of content on user generated content platforms, e.g., reviews, articles, chat, videos, etc. On these platforms, users’ expectations regarding the amount and timing of participation by others becomes germane to their own involvement levels. Accordingly, we develop a dynamic rational expectations equilibrium model of joint consumption and generati...

2012
Stephan Sachse Thomas Puschmann Rainer Alt

The financial industry is in midst of a fundamental transformation. Changes in customer behavior and the impact of information technology are believed to change the financial industry from hierarchical to market-based structures. Although electronic markets in the financial services industry are well known in B2B processes such as e.g. stock exchanges, only little research has been undertaken T...

2013
Zixiu Guo Kenneth J. Stevens Yuan Li

The technological capability of digital natives is thought to have considerable implications on the way they communicate, socialize, think and learn. Some researchers have even suggested that fundamental changes to the educational system are required to cater for the needs of this new cohort of learner, although such claims have little empirical support. In this study, we adopt a structural app...

2013
Gretchen J. A. Hansen M. Jake Vander Zanden Michael J. Blum Murray K. Clayton Ernie F. Hain Jennifer Hauxwell Marit Izzo Matthew S. Kornis Peter B. McIntyre Alison Mikulyuk Erika Nilsson Julian D. Olden Monica Papeş Sapna Sharma

Invasive species are leading drivers of environmental change. Their impacts are often linked to their population size, but surprisingly little is known about how frequently they achieve high abundances. A nearly universal pattern in ecology is that species are rare in most locations and abundant in a few, generating right-skewed abundance distributions. Here, we use abundance data from over 24,...

Journal: :American journal of botany 2011
Saara J DeWalt Evan Siemann William E Rogers

PREMISE OF THE STUDY Invasive plants often display genetically determined variation in patterns of growth and resource allocation between native and introduced genotypes, as well as among genotypes within different regions of the introduced range. We examined patterns of genetic variation within and among native and introduced populations of the tetraploid Chinese tallow tree (Triadica sebifera...

2017
José Ángel Cahua-Pablo Miguel Cruz Pedro Vidal Tello-Almaguer Luz Carmen Del Alarcón-Romero Esteban Juan Parra Salvador Villerías-Salinas Adán Valladares-Salgado Vianet Argelia Tello-Flores Abigail Méndez-Palacios Claudia Paola Pérez-Macedonio Eugenia Flores-Alfaro

OBJECTIVE Mexico's current population structure has been defined by admixture between European, Native American, and to some extent African, groups that started in the sixteenth century. The aim of this research was to analyze the relative contributions of these continental population groups to the seven regions of the state of Guerrero, Mexico. METHODS A total of 104 ancestry informative mar...

2012
Mariah H. Meek Alpa P. Wintzer William C. Wetzel Bernie May

Climate change and invasive species can both have negative impacts on native species diversity. Additionally, climate change has the potential to favor invasive species over natives, dealing a double blow to native biodiversity. It is, therefore, vital to determine how changing climate conditions are directly linked to demographic rates and population growth of non-native species so we can quan...

2010
Miki Peer Meir Steiner Susan Waserman Claudio N Soares

Background “Canada’s Immigration Program” [1] reports that Canada has the highest per capita immigration rate in the world. Given the finding that pregnant immigrant women display higher prevalence of depression and anxiety disorders [2], the investigation of health outcomes in this population is warranted. The present study will examine whether prenatal perceived stress and/or physiologic mate...

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