Search results for "AMP"

On the Sampling Size for Inverse Sampling

2022

In the Big Data era, sampling remains a central theme. This paper investigates the characteristics of inverse sampling on two different datasets (real and simulated) to determine when big data become too small for inverse sampling to be used and to examine the impact of the sampling rate of the subsamples. We find that the method, using the appropriate subsample size for both the mean and proportion parameters, performs well with a smaller dataset than big data through the simulation study and real-data application. Different settings related to the selection bias severity are considered during the simulation study and real application.

Further development of integrated threat theory and intergroup contact: a reply to Aberson (2015)

2016

ABSTRACTThis essay furthers a dialogue about the theoretical and statistical merits of Croucher's [(2013). Integrated threat theory and acceptance of immigrant assimilation: An analysis of Muslim immigration in Western Europe. Communication Monographs, 80, 46–62] study exploring the relationships between threat from an immigrant group, belief that an immigrant wants to assimilate, and intergroup contact. Key points of divergence include assertions that (a) the relationships in the original piece are counter to previous literature/relationships, (b) the correlations presented are implausible, (c) the magnitude of the relationships is too strong, and (d) the manuscript has “odd” multiple regr…

Sampling in Local Tourism Quantification: Critical Issues and Field Experience

2013

The aim of this paper is to detail some issues relating to tourist sampling by means of three case studies. Tourism quantification issues and solutions will be illustrated in three paradgmatic situations: sampling in a self-contained context with multiple access points (an Island in Aeolian archipelago), tourism in a seaside town, and nautical tourism. In these contexts the issue of building a space-time grid to circumscribe the target population is made more complex by the mobile nature of these populations.

Frozen or dynamic? : An atomistic simulation perspective on the timescales of electrochemical reactions

2023

Electrochemical systems span a wide range of timescales, and several recent works have put forth the idea that the reaction environment should remain frozen and out of equilibrium during electrochemical electron or proton transfer reactions. Furthermore, simplified treatments of the electrochemical interface model the solvent and ions as frozen molecules. However, the claims and practices of a frozen environment strongly clash with most theoretical and simulation approaches developed to study electrochemical reaction rates. It has also been suggested that the electrode potential should not be fixed when simulating reaction rates due to conductivity limitations, which indicates constant pote…

Dead wood profile of a semi-natural boreal forest – implications for sampling

2019

Dead wood profile of a forest is a useful tool for describing forest characteristics and assessing forest disturbance history. Nevertheless, there are few studies on dead wood profiles, including both coarse and fine dead wood, and on the effect of sampling intensity on the dead wood estimates. In a semi-natural boreal forest, we measured every dead wood item over 2 cm in diameter from 80 study plots. From eight plots, we further recorded dead wood items below 2 cm in diameter. Based on these data we constructed the full dead wood profile, i.e. the overall number of dead wood items and their distribution among different tree species, volumes of different size and decay stage categories. We …

Satisfação Profissional no Docente Dominicano: Antecedentes Profissionais

2019

Resumen La satisfacción laboral del colectivo docente ha sido estudiada desde diversas perspectivas, debido a los importantes efectos que esta puede tener tanto a nivel económico como a nivel organizacional. La muestra empleada en este trabajo se compone de 978 docentes dominicanos, y fue obtenida mediante un muestreo estratificado, y, por tanto, representativo de la población. En este estudio se examina un modelo de ecuaciones estructurales en el cual el contexto de trabajo y las condiciones laborales afectan el burnout y el engagement de los profesores. A su vez, se plantea que burnout y engagement afectan la satisfacción laboral docente. El modelo ajustó a los datos: x2(223)= 1089.9, p<.…

Un campione di potenza basato su schede di acquisizione commerciali. Prove sperimentali e valutazione dell'incertezza

2011

Inclusive Decision-making and Campaign: The Participation of Second Generation Migrants for Preventing Radicalization

2019

This paper deals with the analysis of the first results of Oltre project (ISF - DG Migration and Home Affairs, EU) funding for preventing the radicalization of the second-generation of migrants. The non-standard field research was intertwined with online social network profiles investigation. We present the off-line research results. Starting from the different dimensions of the risk of radicalization proposed by the kaleidoscopic overview of risk factors (Sieckelinck and Gielen 2018: 5; Ranstorp 2016), we created a topic guide for the indepth qualitative interviews collecting 42 interviews of 2G youths (18-30 years) in 7 Italian towns, interviewing also several privileged testimonies. Then…

The representation of women and men in Collins Cobuild English Language Dictionary

2002

Who Can See My Stuff? : Online Self-Disclosure and Gender Differences on Facebook

2018

This study investigates the gendered privacy practices and concerns on Facebook, by leaning on the idea of privacy management as a form of digital labour. We analyse if young Facebook users are more concerned about the privacy against other users than against Facebook as a company or against third-party partners. We also analyse if privacy concerns and visibility rules are differentiated by gender. Using a structured online survey, we collected responses from a sample of 813 Italian university students (aged 18-34). Our results show that the respondents have just slightly more privacy concerns against other users than against Facebook, and much less against third-party partners. Unlike a ma…