Results 41 to 50 of about 6,988 (143)

L’insécurité dans la région métropolitaine de Port-au-Prince et la déterritorialisation du quartier de Martissant (Haïti)

open access: yesÉtudes Caribéennes
In the observation of criminal insecurity, territorial analysis has been an important aspect since the work of sociologists from the Chicago School. Initially, the focus was on the offender and the environment facilitating their actions.
Neptune Prince
doaj   +1 more source

The spherical segmented Langmuir probe in a flowing thermal plasma: numerical model of the current collection [PDF]

open access: yesAnnales Geophysicae, 2005
The segmented Langmuir probe (SLP) has been recently proposed by one of the authors (Lebreton, 2002) as an instrument to derive the bulk velocity of terrestrial or planetary plasmas, in addition to the electron density and temperature that are ...
E. Séran   +3 more
doaj   +1 more source

A Multi‐Analytical Approach for the Compositional Characterization and Chronological Discrimination of Benin (Nigeria) Metal Sculptures

open access: yesArchaeometry, EarlyView.
ABSTRACT This study presents a multi‐analytical archaeometric approach for the compositional characterization and chronological discrimination of Benin metal sculptures in relation to the 1897 Punitive Expedition. The methodology integrates elemental composition (XRF and ICP), stable lead isotope ratios (MC‐ICP‐MS) for alloy system characterization ...
I. Torraba   +5 more
wiley   +1 more source

A Common Reference Material for Mass‐Dependent Sn Isotope Compositions: An Inter‐Laboratory Calibration Approach

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister   +10 more
wiley   +1 more source

New Potential Haematite and Magnetite Reference Materials for Iron Isotope Measurements by Solution Nebulisation MC‐ICP‐MS and by In Situ ns‐LA‐MC‐ICP‐MS

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Two haematite and magnetite materials were developed as potential Fe isotope reference materials. Solution and in situ LA‐MC‐ICP‐MS analyses yielded consistent δ56Fe values. Both materials are isotopically homogeneous and suitable for in situ Fe isotope calibration.
Jialu Yu   +4 more
wiley   +1 more source

Evolutionary legacies structure the geography of seagrass traits across the world's oceans

open access: yesNew Phytologist, EarlyView.
Summary Traits modulate species' ability to track shifts in climate, yet the extent to which traits have been shaped by the contemporary environment and/or historical processes remains poorly understood. Here, we fill this gap for the world's seagrasses, habitat‐forming species that provide critical ecosystem services.
Nestor E. Bosch   +2 more
wiley   +1 more source

Investigating the Origins of Hot Neptunes from Radial Velocity Data

open access: yesThe Astronomical Journal
Hot Neptunes are extrasolar planets that are similar in size to Neptune in our solar system but are much closer to their host stars, completing an orbit in 10 days or less. The origin of hot Neptunes is not fully understood.
Sophie Y. Zheng
doaj   +1 more source

Subacute Stroke in a Young Female: A Case of Moyamoya Syndrome Initially Anchoring with Anxiety

open access: yesCase Reports in Medicine, 2019
Moyamoya disease is an arterial disorder causing stroke in a young patient. This is a chronic condition causing progressive cerebrovascular disease due to bilateral stenosis and occlusion of the arteries around the circle of Willis, with prominent ...
Saira Chaughtai   +7 more
doaj   +1 more source

Neptune's Fury, Neptune's Bounty

open access: yes, 2017
My personal essay begins on page 10. I was awarded the Remus Writing Award for best prose submission for this paper.
openaire   +1 more source

Using Local Expert Knowledge to Measure Prices: Evidence From a Survey Experiment in Vietnam

open access: yesReview of Development Economics, EarlyView.
ABSTRACT Many countries lack spatially disaggregated consumer price data needed to estimate real inequality and spatial patterns of poverty. Such data are especially absent in poor countries where weak infrastructure and high transport costs create large price variation over space.
John Gibson, Trinh Le
wiley   +1 more source

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