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715  Articles
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Using mixed-mode data collection is becoming a mainstream way of conducting longitudinal surveys. However, interviewing the same units in a mixed-mode longitudinal design can lead to respondents switching between modes over time. As a result, mode switchi... see more

Increasing costs of data collection and decreasing response rates in social surveys has led to a proliferation of mixed-mode and self-administered surveys. In this context the design and content of survey invitations is increasingly important as it influe... see more

Many surveys collect data using a mixture of modes administered in sequential order. Although the impacts of mixed-mode designs on measurement quality have been extensively studied, their impacts on the measurement quality of unobservable (or latent) cons... see more

Mixed mode designs are receiving increased interest as a possible solution for saving costs in panel surveys, although the lasting effects on data quality are unknown. To better understand the effects of mixed mode designs on panel data we will examine it... see more

Mixed mode designs are becoming standard in the collection of survey data. Despite this, there are still unknowns regarding how mode (e.g., Web) or mode design (e.g., sequential mixed mode) impacts measurement error. Previous research has been limited by ... see more

The paper aims to present the plants collected from the former county of Turda and their characteristics, that are found in one of the most important herbariums in Romania - the ‘Alexandru Beldie’ herbarium of the ‘Marin Dracea’ National Institute for Res... see more

This paper aims to analyze, especially in terms of space, the phenomenon of flooding for Cernatesti locality, dated May 29, 2012. In the context of high intensity torrential rains, in a short period of time, in this period occurred flash-floods of high in... see more

El escritor rumano, Alexandru Busuioceanu (1896-1961), tras una larga trayectoria como poeta, historiador del arte y ensayista en lengua rumana, es nombrado consejero cultural en Madrid en 1942. Este artículo pretende hacer un repaso de su trayectoria pro... see more

This paper provides a quantitative and general description of the main representatives of the genus Asperula L. present in the ‘Alexandru Beldie’ Herbarium. Currently, Asperula genus comprises 25 different taxa (18 with a status of species and 7 as intras... see more

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