scholarly journals Mapping of hydrochemical data by computer at the Geological Survey of Denmark

1977 ◽  
Vol 46 ◽  
pp. 1-26
Author(s):  
Arne Villumsen ◽  
Jens Jacobsen

In the present paper an outline is given of the actual use of computers to represent hydrochemical data at the Geological Survey of Denmark. Special emphasis is directed to the description of the different types of output.

1977 ◽  
Vol 3 ◽  
pp. 58-71
Author(s):  
Maria Oud-de Glas

At the Institute for Applied Sociology of the University of Nijmegen, an investigation into foreign language needs of several groups in Dutch society has been carried out in 1975 through 1977. Questionnaires were submitted to these different groups, e.g. to former pupils of secondary schools. The questionnaire consisted mainly of a list of 24 descriptions of situations in which foreign languages are used. In these descriptions the significant features of language situations are systematically varied. For each situa-tion we asked if and how frequently it occurs and if the knowledge of the languages learnt is sufficient for this kind of situation. The results of the investigation show large differences in language needs (defined as actual use of the foreign language and shortcomings in the knowledge of that language in certain situations) both between the former pupils of the different types of secondary schools as well as between the languages most commonly taught in Dutch schools, French, German and English. More specifically it was found that the actual use of foreign languages occurs more frequently among former pupils of certain vocational schools (especially technical schools) than among former pupils of general secondary schools. French appears to be used less frequently than German and English. English is used by a somewhat larger group than German, but this does not hold for all groups. Former pupils of technical schools use German as much as English. The resulting data can be used to choose objectives for foreign language teaching. There is however no simple and direct way from language needs to objectives. In choosing objectives on the basis of findings on language needs, one will have to decide which measure of language needs is taken into account and how this measure (or these measures) is (are) used. If we decide for example to take the size of the group that has actually used a foreign language in one of the situations as a criterion for the choice of that situation as a part of the objectives of language teaching, we will then have to decide where we draw the line between situations that are and situations that are not important enough to be chosen. In other words, we have to decide how large the group of language users must be. It is evident that there is no shorter way from language needs to objectives than a carefully argued choice of measures and of the use of these measures.


PLoS ONE ◽  
2014 ◽  
Vol 9 (10) ◽  
pp. e108638 ◽  
Author(s):  
Thiemen Boll ◽  
Christina von Haaren ◽  
Eick von Ruschkowski

1922 ◽  
Vol 59 (8) ◽  
pp. 358-361 ◽  
Author(s):  
Albert Heard

The rock which is described in this communication, occurs along the western flank of Llwydmor Bâch, about 6 miles eastsouth-east of Bangor, and about 8 miles south-west of Conway. On the 1 in. map of the Geological Survey, this rock, together with entirely different types on its eastern margin, are all marked as intrusive felspathic rocks. On the ¼ in. map, it is described as granite, and its eastern boundary is mapped.


Author(s):  
Valérie Schram

AbstractThis article examines the meaning of the word ξυστήρ and points out the different types of «scrapers» it may refer to according to the context. In view of the analogy of form and function between all the tools considered, this study discusses the lexical identification and actual use of specific implements such as the woodworking drawknife.


1995 ◽  
Vol 165 ◽  
pp. 69-72
Author(s):  
B Ady

One of the tasks of a modern geological survey is to build the geoscientific databases on which exploration companies make decisions, thus confronting them with data handling problems which involve many different types of complex spatial data. Geoscience data, characterised as it is by its large volume, variable nature, inherent uncertainty and lack of completeness has always presented challenges. These challenges are particularly acute when a demanding client base requires and expects access to this data in digital form and in standard formats. The Geological Survey of Greenland's (GGU) own mandate to provide industry with data has been previously described (Ghisler 1990: Dawes 1994) and the importance of GGU's data­base and the benefits of Greenland's unique 'underexplored/good geodata base’ duality has been discussed by Dawes (1994). A tangible result of GGU's attempt to deliver data from its databases to external clients has been in the Thematic Map Series, first published in 1990 as one of several new initiatives aimed at increasing interest in mineral exploration in Greenland.


1986 ◽  
Vol 23 (04) ◽  
pp. 851-858 ◽  
Author(s):  
P. J. Brockwell

The Laplace transform of the extinction time is determined for a general birth and death process with arbitrary catastrophe rate and catastrophe size distribution. It is assumed only that the birth rates satisfyλ0= 0,λj> 0 for eachj> 0, and. Necessary and sufficient conditions for certain extinction of the population are derived. The results are applied to the linear birth and death process (λj=jλ, µj=jμ) with catastrophes of several different types.


2020 ◽  
Vol 43 ◽  
Author(s):  
Rajen A. Anderson ◽  
Benjamin C. Ruisch ◽  
David A. Pizarro

Abstract We argue that Tomasello's account overlooks important psychological distinctions between how humans judge different types of moral obligations, such as prescriptive obligations (i.e., what one should do) and proscriptive obligations (i.e., what one should not do). Specifically, evaluating these different types of obligations rests on different psychological inputs and has distinct downstream consequences for judgments of moral character.


Author(s):  
P.L. Moore

Previous freeze fracture results on the intact giant, amoeba Chaos carolinensis indicated the presence of a fibrillar arrangement of filaments within the cytoplasm. A complete interpretation of the three dimensional ultrastructure of these structures, and their possible role in amoeboid movement was not possible, since comparable results could not be obtained with conventional fixation of intact amoebae. Progress in interpreting the freeze fracture images of amoebae required a more thorough understanding of the different types of filaments present in amoebae, and of the ways in which they could be organized while remaining functional.The recent development of a calcium sensitive, demembranated, amoeboid model of Chaos carolinensis has made it possible to achieve a better understanding of such functional arrangements of amoeboid filaments. In these models the motility of demembranated cytoplasm can be controlled in vitro, and the chemical conditions necessary for contractility, and cytoplasmic streaming can be investigated. It is clear from these studies that “fibrils” exist in amoeboid models, and that they are capable of contracting along their length under conditions similar to those which cause contraction in vertebrate muscles.


Author(s):  
U. Aebi ◽  
P. Rew ◽  
T.-T. Sun

Various types of intermediate-sized (10-nm) filaments have been found and described in many different cell types during the past few years. Despite the differences in the chemical composition among the different types of filaments, they all yield common structural features: they are usually up to several microns long and have a diameter of 7 to 10 nm; there is evidence that they are made of several 2 to 3.5 nm wide protofilaments which are helically wound around each other; the secondary structure of the polypeptides constituting the filaments is rich in ∞-helix. However a detailed description of their structural organization is lacking to date.


Author(s):  
E. L. Thomas ◽  
S. L. Sass

In polyethylene single crystals pairs of black and white lines spaced 700-3,000Å apart, parallel to the [100] and [010] directions, have been identified as microsector boundaries. A microsector is formed when the plane of chain folding changes over a small distance within a polymer crystal. In order for the different types of folds to accommodate at the boundary between the 2 fold domains, a staggering along the chain direction and a rotation of the chains in the plane of the boundary occurs. The black-white contrast from a microsector boundary can be explained in terms of these chain rotations. We demonstrate that microsectors can terminate within the crystal and interpret the observed terminal strain contrast in terms of a screw dislocation dipole model.


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