Results 61 to 70 of about 4,773 (290)
A Stand-Off Laser-Induced Breakdown Spectroscopy (LIBS) System Applicable for Martian Rocks Studies
Remote Sensing, 2021 Laser-induced breakdown spectroscopy (LIBS) is a valuable tool for evaluating the geochemical characteristics of Martian rocks and was applied in the Tianwen-1 Mars exploration mission with the payload called Mars Surface Composition Detection Package ...
Changqing Liu +5 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract This article reviews the pathological changes in the enamel of permanent mandibular cheek teeth and their sequelae in European roe deer from regions polluted by anthropogenic fluoride emissions. The primary (developmental) changes of fluorotic roe deer enamel are hypomineralization and microstructural aberrations, including enamel hypoplasia ...
Uwe Kierdorf, Horst Kierdorf
wiley +1 more source
Geochemical discrimination and characteristics of magmatic tectonic settings; a machine learning-based approach [PDF]
, 2017 Geochemically discriminating between magmatism in different tectonic settings remains a fundamental part of understanding the processes of magma generation within the Earth's mantle. Here, we present an approach where machine-learning (ML) methods are used for quantitative tectonic discrimination and feature selection using global geochemical datasets ...
arxiv +1 more source
The history of anatomical engagement
Anatomical Sciences Education, EarlyView.Abstract The public's fascination with anatomy has evolved over time and progressed from avoidance of the tainted yet saintly corpse, to their fascination with cabinets of curiosities. The current narrative review explores public engagement (PE), from its potential origins as cave paintings, to the rise of the disciplinarity of anatomy.
Quenton Wessels, Adam M. Taylor
wiley +1 more source
Attitudes to Pregnancy, Childbirth and Postnatal Complications in Medieval English Miracula
Gender &History, EarlyView., 2023 Abstract This article re‐examines the evidence about childbirth and related topics in the posthumous miracle collections of English saints. It finds forty‐eight such miracles in collections of thirteen English saints, mostly from the century or so after 1170. The article argues that the context in which the stories were composed is vitally important to
Ben Nilson, Ruth Frost
wiley +1 more source
Unsupervised Classification of Intrusive Igneous Rock Thin Section Images using Edge Detection and Colour Analysis [PDF]
, 2017 Classification of rocks is one of the fundamental tasks in a geological study. The process requires a human expert to examine sampled thin section images under a microscope. In this study, we propose a method that uses microscope automation, digital image acquisition, edge detection and colour analysis (histogram).
arxiv +1 more source
Paleohydrology on Mars constrained by mass balance and mineralogy of pre-Amazonian sodium chloride lakes [PDF]
Journal of Geophysical Research: Planets, 122 (2017), 2017 Chloride-bearing deposits on Mars record high-elevation lakes during the waning stages of Mars' wet era (mid-Noachian to late Hesperian). The water source pathways, seasonality, salinity, depth, lifetime, and paleoclimatic drivers of these widespread lakes are all unknown.
arxiv +1 more source
Listening to Hong Kong children's perspectives through pretend play
British Educational Research Journal, EarlyView.Abstract Quality in early childhood education and care (ECEC) has become an increasing concern in recent years. The issue has been regularly discussed by different stakeholders. However, the rising concern regarding quality in ECEC has not seriously taken into account children's perspectives.
Suzannie K. Y. Leung
wiley +1 more source
An Experimental Investigation of the Scaling of Columnar Joints [PDF]
, 2006 Columnar jointing is a fracture pattern common in igneous rocks in which cracks self-organize into a roughly hexagonal arrangement, leaving behind an ordered colonnade. We report observations of columnar jointing in a laboratory analog system, desiccated corn starch slurries.
arxiv +1 more source
The Depositional Record, EarlyView.Abstract We very much appreciate the comments of André; Pestilho and Agustin Mors on our paper discussing the early diagenesis of the Pre‐salt carbonates (Barra Velha Formation, BVF) in the Santos Basin (Gomes et al., 2024). We welcome the opportunity to respond and to clarify our interpretations concerning dolomite formation, diagenetic timing and ...
João Paulo Borges Gomes +6 more
wiley +1 more source