Results 41 to 50 of about 64,588 (104)

The Story of the Dopamine Transporter PET Tracer LBT-999: From Conception to Clinical Use

Frontiers in Medicine, 2019
The membrane dopamine transporter (DAT) is involved in a number of brain disorders and its exploration by positron emission tomography (PET) imaging is highly relevant for the early and differential diagnosis, follow-up and treatment assessment of these ...
S. Chalon, J. Vercouillie, P. Payoux, J. Deloye, Cécile Malherbe, F. Le Jeune, N. Arlicot, A. Salabert, D. Guilloteau, P. Emond, M. Ribeiro   +10 more
semanticscholar   +1 more source

Research on the Efficient Desilication Process of Low-Grade Bauxite in Guangxi

Crystals
With the continuous exploitation of bauxite mineral resources, Guangxi bauxite faces many difficulties in alumina production due to its characteristics of high silicon content, high iron content, and a low Al-Si ratio.
Guoxian Hu, Anmin Li, An Xia, Dongjie Zhang, Liwen Pan, Xiaolian Zhao, Xingzhi Pang   +6 more
doaj   +1 more source

Effect of Reduction Annealing on the Coloration Mechanism of Yellow Sapphire with High Iron Content

Crystals, 2022
The color of yellow sapphire from Africa characterized by high iron content and low levels of other transition metal elements was changed from yellow to grayish-blue after high-temperature reduction annealing.
Xiao Wu, Xiaozhen Han, Yan Kang, Xiqi Feng, Shouguo Guo   +4 more
doaj   +1 more source

‘Primary care sensitive’ situations that result in an ambulance attendance: a conversation analytic study of UK emergency ‘999’ call recordings

BMJ Open, 2018
Objectives To explore common features of conversations occurring in a sample of emergency calls that result in an ambulance dispatch for a ‘primary care sensitive’ situation, and better understand the challenges of triaging this cohort.
M. Booker, A. Shaw, S. Purdy, R. Barnes
semanticscholar   +1 more source

Real-Time Dose Measurement in Brachytherapy Using Scintillation Detectors Based on Ce³⁺-Doped Garnet Crystals

Crystals
Conventional detectors based on ionization chambers, semiconductors, or thermoluminescent materials generally cannot be used to verify the in vivo dose delivered during brachytherapy treatments with γ-ray sources.
Sandra Witkiewicz-Łukaszek, Bogna Sobiech, Janusz Winiecki, Yuriy Zorenko   +3 more
doaj   +1 more source

5-Bromo-1-(6-bromohexyl)indoline-2,3-dione

IUCrData, 2016
In the title compound, C14H15Br2NO2, the dihedral angle between the mean plane passing through the bromohexyl chain and the 5-bromoindoline ring system (r.m.s. deviation = 0.044Å) is 70.0 (3)°.
Yassine Kharbach, Youssef Kandri Rodi, Amal Haoudi, El Mokhtar Essassi, Frédéric Capet, Hafid Zouihri   +5 more
doaj   +1 more source

Morphological and Surface Microtopographic Features of HPHT-Grown Diamond Crystals with Contact Twinning

Crystals, 2022
Gem-grade twinned high-pressure high-temperature (HPHT) synthetic diamond crystals are rare. Hence, few investigations on their morphological features and formation have been reported.
Kaiyue Sun, Taijin Lu, Mingyue He, Zhonghua Song, Jian Zhang, Jie Ke   +5 more
doaj   +1 more source

Reference Question Data Mining [PDF]

, 2010
This exploratory study investigated the feasibility of using reference questions as an important tool in the construction of study guides, instructional outreach, and collection development at a small, four-year university in Lake Charles, Louisiana. The
Finnell, Joshua, Fontane, Walt
core   +1 more source

Mechanical Properties and Ballistic Performance for Different Coatings on HARDOX 450 Steel for Defense Applications

Crystals
The aim of the current study is to investigate the mechanical properties and ballistic performance of HARDOX 450 steel for defense applications in different conditions: uncoated, alumina-coated, and LINE X polyurea-coated.
Cosmin Nicolescu, Tudor Viorel Tiganescu, Aurora Antoniac, Ovidiu Iorga, Brandusa Ghiban, Alexandru Pascu, Alexandru Streza, Iulian Antoniac   +7 more
doaj   +1 more source

1,4-Bis(4-methyl-2-nitrophenoxy)butane

IUCrData, 2017
The asymmetric unit of the title compound, C18H20N2O6, contains one-half molecule, the mid-point of the central C—C bond being located on a crystallographic inversion centre. In the crystal, weak C—H...O interactions generate a layered structure.
Huihui Zhang, Haiyan Wang, Jianhua Yu
doaj   +1 more source