Results 21 to 30 of about 5,581,531 (332)

Giant Magnetoresistance Effect in the Metal-Insulator Transition of Pyrochlore Oxide Nd2Ir2O7 [PDF]

open access: yes, 2013
We investigated the magnetoresistance (MR) effect of the pyrochlore oxide Nd2Ir2O7, which shows a metal-insulator transition at T_MI =33 K. A small positive MR effect was observed in the metallic state above T_MI, while a large negative MR effect was ...
Hinatsu, Yukio   +4 more
core   +1 more source

Evaluation of static and dynamic MRI for assessing response of bone sarcomas to preoperative chemotherapy: Correlation with histological necrosis

open access: yesIndian Journal of Radiology and Imaging, 2015
Objectives: Preoperative chemotherapy plays a key role in management of bone sarcomas. Postoperative evaluation of histological necrosis has been the gold standard method of assessing response to preoperative chemotherapy. This study was done to evaluate
Priyadarshi Amit   +5 more
doaj   +1 more source

'How shall we survive': a qualitative study of women's experiences following denial of menstrual regulation (MR) services in Bangladesh. [PDF]

open access: yes, 2016
BackgroundAbout one quarter of women in Bangladesh are denied menstrual regulation (MR) due to advanced gestation [J Fam Plann Reprod Health Care 41(3):161-163, 2015, Issues Brief (Alan Guttmacher Inst) (3):1-8, 2012].
Biswas, Kamal Kanti   +5 more
core   +2 more sources

Learning Experience Design: Embodiment, Gesture, and Interactivity in XR

open access: yesEducational Technology & Society, 2021
The concepts of embodiment and embodied learning are gaining traction in the field of education. This special issue aims to synthesize current knowledge on the design and evaluation of learning in immersive and embodied learning environments, mediated by
Andri Ioannou   +2 more
doaj  

MRI-only based radiotherapy treatment planning for the rat brain on a Small Animal Radiation Research Platform (SARRP) [PDF]

open access: yes, 2015
Computed tomography (CT) is the standard imaging modality in radiation therapy treatment planning (RTP). However, magnetic resonance (MR) imaging provides superior soft tissue contrast, increasing the precision of target volume selection.
Descamps, Benedicte   +2 more
core   +2 more sources

A Spectral-Scanning Magnetic Resonance Imaging (MRI) Integrated System [PDF]

open access: yes, 2008
An integrated spectral-scanning magnetic resonance imaging (MRI) technique is implemented in a 0.12μm SiGe BiCMOS process. This system is designed for small-scale MRI applications with non-uniform and low magnetic fields.
Babakhani, Aydin   +2 more
core   +1 more source

The Mechanisms and Pathophysiology of Mitral Regurgitation: A Narrative Review

open access: yesAnnals of Cardiac Anaesthesia
Mitral valve closure is a complex process and requires coordinated actions of all its interrelated anatomical components: the left atrium, the mitral annulus, the valve leaflets, the tendinous chordae, and the papillary muscles with its surrounding left ...
Praveen Kumar Neema, Nagarjuna Panidapu
doaj   +1 more source

Case report: Acute calcific discitis with intravertebral disc herniation in the dorsolumbar spine

open access: yesIndian Journal of Radiology and Imaging, 2010
Acute calcific discitis is a rare but well-known condition of unknown etiology. In symptomatic cases, the most common site is the cervical spine. We describe the CT scan and MRI findings in a symptomatic patient, with a lesion in the dorsolumbar spine.
Puneet Mittal   +3 more
doaj   +1 more source

Differences in contraceptive prices between and within family planning outlets in urban and semiurban Nigeria: a prospective cohort studyAJOG Global Reports at a Glance

open access: yesAJOG Global Reports, 2022
BACKGROUND: There is a lack of comprehensive evidence assessing variability and volatility in contraceptive prices. Improved understanding of contraceptive pricing, both between and within public and private service delivery points situated within ...
Claire W. Rothschild, PhD, MS   +5 more
doaj   +1 more source

Magnetoresistance behavior of a ferromagnetic shape memory alloy: Ni_1.75Mn_1.25Ga [PDF]

open access: yes, 2008
A negative-positive-negative switching behavior of magnetoresistance (MR) with temperature is observed in a ferromagnetic shape memory alloy Ni_1.75Mn_1.25Ga. In the austenitic phase between 300 and 120 K, MR is negative due to s-d scattering. Curiously,
Ahuja, B. L.   +9 more
core   +1 more source

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