This article forms pan of an ongoing study of the coal and coalbed methane resource potential of northwestern British Columbia. Other areas under study include the Bower basin coalfield, Telkwa coalfield and Tertiary coalfields of the Bulkley Valley. Tertiary sediments survive in many major watersheds in British Columbia. The sediments are generally not well consolidated, poorly exposed and the...

The plankton fauna of the state of Piauí, Northeastern Brazil, especially in the Parnaíba basin, is still poorly known; the results of most studies of the subject have not been published and can only be found in grey literature (unpublished scientific works), such as course completion work and consulting reports. Thus, this paper presents data from samples taken recently from different water bo...

We investigate some basic descriptive set theory for countably based completely quasi-metrizable topological spaces, which we refer to as quasi-Polish spaces. These spaces naturally generalize much of the classical descriptive set theory of Polish spaces to the non-Hausdorff setting. We show that a subspace of a quasi-Polish space is quasi-Polish if and only if it is Π2 in the Borel hierarchy. ...

the aim of this study was to analyze the association between overweight prevalence and socioeconomic status (ses) measured by complex ses index and single ses factors in polish adolescents in respect to age and sex.this cross-sectional study was conducted in 2010-2011. a total of 1,176 adolescents aged 13.0-18.9 years were included. the respondents were students of junior-high and high schools ...

We prove that a Borel equivalence relation is classifiable by countable structures if and only if it is Borel reducible to a countable level of the hereditarily countable sets. We also prove the following result which was originally claimed in [FS89]: the zero density ideal of sets of natural numbers is not classifiable by countable structures. Introduction. The Borel reducibility theory of Pol...

The study involved the analysis of Polish speech samples of 59 Polish-English bilingual children of Polish immigrants to the UK. It aimed to explore differences in phonological performance between these early bilinguals and their Polish monolingual peers. The data collection procedure involved a sentence repetition task. 14 preselected sentences from this task were subsequently analysed auditor...

The subject of this article is a description of Polish inflection in the form of a relational database. The description has been developed for a grammatical dictionary of Polish that aims at complete inflectional characterisation of all Polish lexemes. We show some complexities of the Polish inflectional system for various grammatical classes. Then we present a relatively compact relational mod...

2Weissman, S. I., J. Chem. Phys., 29, 1189 (1958). 3 Commoner, B., J. J. Heise, B. B. Lippincott, R. E. Norberg, J. V. Passonneau, and J. Townsend, Science, 126, 57-63 (1957). 4 Sogo, P. B., N. B. Pon, and M. Calvin, these PROCEEDINGS, 43, 387-393 (1957). 5 Commoner, B., "Electron spin resonance studies of photosynthetic systems" in Light and Life, ed. W. D. McElroy and B. Glass (Baltimore: Joh...