Accessory phase perspectives for ore-forming processes and magmatic sulphide exploration in the Labrador Trough, northern Quebec, Canada

This is the author accepted manuscript. The final version is available from Canadian Science Publishing via the DOI in this recordThe compositions of resistant indicator minerals are diagnostic of their original host environment. They may be used to fingerprint different types of mineral deposit as well as vector towards them. We have characterised the composition of apatite and Fe–Ti oxides in variably mineralised mafic–ultramafic rock units of the Montagnais Sill Complex in the Labrador Trough to assess their suitability for vectoring towards magmatic sulphide occurrences. Two broad types of apatite were identified: (i) flu-oro-to hydroxy-apatite (Cl/(Cl+F) 0.5). The former reflects variable degrees of degassing and Cl loss during Rayleigh fractionation and is not indicative of Ni–Cu mineralisation or host rock. The latter exists only in sulphidic olivine cumulate units and thus may be used to vector towards similar rock types in the Labrador Trough. Ilmenite is the dominant oxide, except for the upper parts of differentiated gabbroic sills in which titanomagnetite is dominant. Magnetite occurs only as a secondary phase in serpentinised olivine cumulates and is not discriminative for magmatic sulphides. Ilmenite and titanomagnetite in the sulphidic olivine-bearing units have characteristically high Mg (~1000–10 000 ppm), Cr (~100–1000 ppm), and Ni (~10–1000 ppm) concentrations relative to those from other rock units. Their composition is consistent with Fe–Ti oxides derived from evolved sulphide melts in ultramafic-hosted Ni–Cu–(PGE) sulphide deposits and thus may be used to vector towards similar magmatic sulphide occurrences in the Labrador Trough.Natural Environment Research Council (NERC

Reproducibility of findings in modern PET neuroimaging: insight from the NRM2018 grand challenge

The reproducibility of findings is a compelling methodological problem that the neuroimaging community is facing these days. The lack of standardized pipelines for image processing, quantification and statistics plays a major role in the variability and interpretation of results, even when the same data are analysed. This problem is well-known in MRI studies, where the indisputable value of the method has been complicated by a number of studies that produce discrepant results. However, any research domain with complex data and flexible analytical procedures can experience a similar lack of reproducibility. In this paper we investigate this issue for brain PET imaging. During the 2018 NeuroReceptor Mapping conference, the brain PET community was challenged with a computational contest involving a simulated neurotransmitter release experiment. Fourteen international teams analysed the same imaging dataset, for which the ground-truth was known. Despite a plurality of methods, the solutions were consistent across participants, although not identical. These results should create awareness that the increased sharing of PET data alone will only be one component of enhancing confidence in neuroimaging results and that it will be important to complement this with full details of the analysis pipelines and procedures that have been used to quantify data.ISSN:0271-678XISSN:1559-701

Measuring climatic impacts on energy consumption: A review of the empirical literature

This paper reviews the literature on the relationship between climate and the energy sector. In particular, we primarily discuss empirical papers published in peer-reviewed economics journals focusing on how climate affects energy expenditures and consumption. Climate will affect energy consumption by changing how consumers respond to short run weather shocks (the intensive margin) as well as how people will adapt in the long run (the extensive margin). Along the intensive margin, further research that uses household and firm-level panel data of energy consumption may help identify how energy consumers around the world respond to weather shocks. Research on technology adoption, e.g. air conditioners, will further our understanding of the extensive margin adjustments and their costs. We also note that most of the literature focuses on the residential sector. Similar studies are urgently needed for the industrial and commercial sectors

Sistem Kekerabatan Dan Pola Pewarisan

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Jurnal Aspikom : Vol. 2, No. 6, Januari 2016

1. Model Komunikasi Kyai dengan Santri di Pesantren 2. Komunikasi Simbolik dalam Upacara Pernikahan Marapulai di Nagari Paninjauan Sumatera Barat 3. Pola Komunikasi Konselor dan Narapidana 4. Model Komunikasi Interpersonal Generasi Muda Suku Batak Karo di Yogyakarta Melaui Tradisi Ertutur 5. Konstruksi Realitas pada Infotainment Silet 6. Model KOmunikasi Pemasaran untuk Pemberdayaan UKM Perempuan pada Sektor Informal di Yogyakart

Wakaf dan pemberdayaan umat/ Hasan Mansur Nasution (et al)

xi, 209 hal.; 21 cm

Pendidikan pancasila dan kewarganegaraan III : modul materi MBS 231/ Ibrohim

iii, 173 hal.; 21 cm

Wakaf dan pemberdayaan umat/ Hasan Mansur Nasution (et al)

xi, 209 hal.; 21 cm