The monzonorite-anorthosite connection: The petrogenesis of terrestrial KREEP

There is a suite of rocks typically associated with Proterozoic massif anorthosites that bear some interesting similarities to lunar KREEP. In many cases these rocks are plutonic and have traditionally been referred to as the jotunite-mangerite-+/-charnockite-+/-syenite suite. However, in the Rogaland district of southwestern Norway, where they are referred to as 'monzonorites', these rocks are also present as fine-grained dikes and as the chill margin of a layered intrusion, and thus approximate magmatic liquid compositions are readily obtained by chemical analysis. Monzonorites are typically enriched in incompatible lithophile elements such as K (alkali feldspar is present), the rare earths (REE), and P. They have intermediate to low Mg', low-Ca pyroxene, and more evolved types have low Ti/Sm ratios. Much debate has developed over attempts to explain the link between monzonorites and massif anorthosites. One feature seems clear: monzonorites and associated anorthosites have different initial isotopic ratios, so a simple relation is not possible. However, there is apparently a continuum in major elements between the monzonorites and gabbros believed to represent magmas parental to the anorthosites. This continuum suggests a link via high pressure fractionation coupled with assimilation. Although more complicated, this scenario is similar to that evoked for the early Moon: following the formation of ferroan anorthosites, continued fractional crystallization of the residual liquids at the base of the crust led to the formation of KREEP. An attempt is made here to establish a link between monzonorites and high-Al gabbros which are nearly always found as ancillary intrusions associated with anorthosites, and which may record processes in lower crustal magma chambers

Revisiting be supposed to from a diachronic constructionist perspective

postprin

Raising: Dutch between English and German

As a complement to C. B. van Haeringen's classic comparative study (1956) that positioned the grammar of Dutch in between the grammars of English and German, this study compares the productivity of three kinds of "raising" patterns in these languages: Object-to-Subject, Subject-to-Object, and Subject-to-Subject raising. It establishes the extent to which Dutch, as well as English and German, have evolved from the old West Germanic starting point these languages are assumed to have shared in this area of grammar. The results are a test case for Hawkins' (1986) case syncretism account of the difference in "explicit-ness" between the grammars of English and German. © Society for Germanic Linguistics 2011.published_or_final_versio

A mineralogical and microstructural study of 7 eucrites (A-881394, Y-791195, Y-981617, Y-790266, Y-791186, Y-792510, Y-793591).

第3回極域科学シンポジウム/第35回南極隕石シンポジウム 11月29日（木） 国立国語研究所 2階講

Performance analysis of a parallel, multi-node pipeline for DNA sequencing

Post-sequencing DNA analysis typically consists of read mapping followed by variant calling and is very time-consuming, even on a multi-core machine. Recently, we proposed Halvade, a parallel, multi-node implementation of a DNA sequencing pipeline according to the GATK Best Practices recommendations. The MapReduce programming model is used to distribute the workload among different workers. In this paper, we study the impact of different hardware configurations on the performance of Halvade. Benchmarks indicate that especially the lack of good multithreading capabilities in the existing tools (BWA, SAMtools, Picard, GATK) cause suboptimal scaling behavior. We demonstrate that it is possible to circumvent this bottleneck by using multiprocessing on high-memory machines rather than using multithreading. Using a 15-node cluster with 360 CPU cores in total, this results in a runtime of 1 h 31 min. Compared to a single-threaded runtime of similar to 12 days, this corresponds to an overall parallel efficiency of 53%

Diachronic Approaches to Modality in World Englishes: Introduction to the Special Issue

postprin

Guahiboan negation: ascription and existence

Horizon 2020(H2020)895548Descriptive and Comparative Linguistic

Revisiting postverbal standard negation in the Jê languages = Revisitando a negação padrão pós-verbal nas línguas Jê

In the Jê languages standard negators tend to take a post-verbal position. This paper asks why this should be the case and therefore discusses earlier accounts relating Jê standard negators to either negative verbs or privative postpositions. We argue that these accounts do not have to exclude each other. In particular, we propose that an existential negator can be reanalyzed as a privative one. We also argue that if the origin of the standard negator is a verb with the meaning ‘finish’, we may be dealing with a scenario that is similar to the ‘Negative Existential Cycle’. In both, the existential negator denies the existence of a state of affairs and then turns into a standard negator. But whereas in the Negative Existential Cycle the non-existence of a state of affairs is modelled on the non-existence of an object, in the ‘new’ scenario the non-existence of a state of affairs derives from the fact that a process or event has come to an end.Horizon 2020(H2020)Marie Skłodowska-Curie grant No 895548Descriptive and Comparative Linguistic

Negation in Kulina: a double polarity swap

This study reconstructs the development of a negative existential and a negative pro-sentence in the Arawan language Kulina (Brazil-Peru). We demonstrate that the two elements forming the negative existential construction nowe (hi)ra- are involved in a double polarity swap: (i) an originally neutral lexical item (the dynamic verb nowe ‘show’) has become negative through contamination, and (ii) an originally negative element (hi)ra-, which was responsible for the contamination, is bleaching into a semantically neutral auxiliary. This lexeme nowe, with the auxiliary used only optionally, also functions as a negative pro-sentence now. Thus, synchronically we have a negative pro-sentence that has its origin in a semantically-neutral lexical item. Neither the source of the negative pro-sentence nor this diachronic path has surfaced in the literature on negation so far and thus they are instructive from diachronic and typological perspectives. The hypothesis enriches the literature on both the Jespersen Cycle and the Negative Existential Cycle. FGW – Publications without University Leiden contrac

Standard negation in Chibchan

This paper surveys the form and the position of the negators of declarative verbal main clauses in the Chibchan languages. It attempts to describe the similarities and the differences, and it ventures hypotheses about the diachrony, primarily with an appeal to the Jespersen and Negative Existential Cycles. It sketches if and how the negators fit more general areal patterning, in particular, the Columbian Central American linguistic area.FGW – Publications without University Leiden contrac