Results 81 to 90 of about 132,522 (290)

Research Progress on Resource Occurrence and Separation Extraction of Germanium in Fly Ash

open access: yesKuangchan zonghe liyong
Germanium is an indispensable strategic rare metal resource in the fields of information and communication, modern aviation, military, new energy and many other high-tech fields.
Sujiang ZHANG   +4 more
doaj   +1 more source

Germanium, Arsenic, and Selenium Abundances in Metal-Poor Stars

open access: yes, 2012
The elements germanium (Ge, Z=32), arsenic (As, Z=33), and selenium (Se, Z=34) span the transition from charged-particle or explosive synthesis of the iron-group elements to neutron-capture synthesis of heavier elements.
Roederer, Ian U.
core   +1 more source

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano   +11 more
wiley   +1 more source

Method of fabricating germanium and gallium arsenide devices [PDF]

open access: yes
A method of semiconductor diode fabrication is disclosed which relies on the epitaxial growth of a precisely doped thickness layer of gallium arsenide or germanium on a semi-insulating or intrinsic substrate, respectively, of gallium arsenide or ...
Jhabvala, Murzban
core   +1 more source

The CDEX-1 1 kg Point-Contact Germanium Detector for Low Mass Dark Matter Searches

open access: yes, 2013
The CDEX Collaboration has been established for direct detection of light dark matter particles, using ultra-low energy threshold p-type point-contact germanium detectors, in China JinPing underground Laboratory (CJPL).
Bai, Yang   +75 more
core   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

Quantifying the Impact of Ocrelizumab on Paramagnetic Rim Lesions in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Paramagnetic rim lesions (PRLs) are a subset of chronic active multiple sclerosis (MS) lesions marked by iron‐laden microglia and macrophages. Ocrelizumab, a monoclonal antibody targeting CD20+ B cells, suppresses acute MS activity, but its effect on PRLs remains unclear. In a longitudinal study of 29 ocrelizumab‐treated patients with at least
Kimberly H. Markowitz   +9 more
wiley   +1 more source

Pulse Laser Sulfur-Hyperdoping of Germanium and High Quantum Efficiency Photodiodes

open access: yesIEEE Photonics Journal, 2016
Germanium was successfully hyperdoped with sulfur by means of nanosecond pulse laser and SF6 gas. A photodiode was fabricated based on sulfur-hyperdoped germanium. Rectifying current-voltage characteristics were observed for the device.
Keye Sun, Mool C. Gupta
doaj   +1 more source

CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao   +7 more
wiley   +1 more source

Hydroxide and oxide of germanium(IV): synthesis and chemical-physical properties

open access: yesТонкие химические технологии, 2015
Our work is focused on a development of physical-chemical backgrounds and methods of controlled synthesis of germanium hydroxide GeO(OH)2, which is a precursor for the synthesis of functional materials based on germanium oxide.
E. E. Nikisihina   +3 more
doaj  

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