This study provides support to the characteristics of participatory and anticipatory stages in secondary school pupils’ abstraction of mathematical conceptions. We carried out clinical task-based interviews with 71 secondary-school pupils to obtain evidence of the different constructed mathematical conceptions (Participatory…

Travel writing has been central to the American literary canon. From all possible backgrounds, origins and spaces, religious dissenters, immigrants and others have described their travelling experiences in North America. Within this profoundly American tradition, black Americans’ narratives are a…

When training hidden-Markov-model-based part-of-speech (PoS) taggers involved in machine translation systems in an unsupervised manner the use of target-language information has proven to give better results than the standard Baum-Welch algorithm. The target-language-driven training algorithm proceeds by translating every possible…

The original Bio-Rad gene gun was unable to transfect acute or organotypic brain slices, as the amount of helium gas used, the distance for the gold-coated microcarriers to travel to target area were not optimised for fragile tissues, such as…

Dictionary entry, That newspapers were, unlike many books, relatively free from external censorship may be attributed to the Regency trials and acquittals for seditious libel of William Hone*
and Thomas Wooler* in 1817, after which the press
acquired freedom from…

Background:

Many large studies have complex advisory committee structures, yet there is no empirical evidence regarding their optimal composition, scope and contribution. The aim of this study was to inform the committee and advice infrastructure for future research studies.…

Rather limited research and few significant field studies have been done on recent immigrant students particularly from the Muslim societies of the Horn of Africa and the Middle East in the American high school context regarding their linguistic, cultural and…

La recherche en nanotechnologie commence à recevoir une attention croissante dans les médias et la littérature de vulgarisation scientifique, mais les discussions sur les espoirs et les craintes concernant les nanotechnologies sont déjà polarisées par des visions utopiques et dystopiques.…

Background. The extraction of salt from seawater by means of coastal solar salterns is a very well-described process. Moreover, the characterization of these environments from ecological, biochemical and microbiological perspectives has become a key focus for many research groups all…

Background: Intra-urban inequalities in mortality have been infrequently analysed in European contexts. The aim of the present study was to analyse patterns of cancer mortality and their relationship with socioeconomic deprivation in small areas in 11 Spanish cities. Methods: It…