Results 41 to 50 of about 31,861 (162)

Investigation of in vivo measurement of cerebral cytochrome-c-oxidase redox changes using near-infrared spectroscopy in patients with orthostatic hypotension [PDF]

, 2007
We have previously used a continuous four wavelength near infrared spectrometer to measure changes in the cerebral concentrations of oxy- (Δ[HbO2] and deoxy- haemoglobin (Δ[HHb]) during head-up tilt in patients with primary autonomic failure.
Cooper, C.E., Delpy, D.T., Elwell, C.E., Leung, T.S., Smith, M., Tachtsidis, I., Tisdall, M.   +6 more
core  

Mid-infrared imaging and spectroscopy of the enigmatic cocoon stars in the Quintuplet Cluster [PDF]

, 2000
In an attempt to determine the nature of the enigmatic cocoon stars in the Quintuplet Cluster, we have obtained mid-infrared imaging and spectrophotometry of the cluster, using the CAM and SWS instruments on ISO, using SpectroCam-10 on the Palomar 5m ...
A. Moneti, Bernasconi, Cesarsky, Chiar, Cohen, D. F. Figer, de Graauw, Draine, F. Najarro, Figer, Figer, Figer, Geballe, Gerakines, Glass, Glass, Glass, Hanner, Hanner, Hayward, J. A. D. L. Blommaert, Kessler, Kobayashi, Moneti, Moneti, Nagata, Okuda, Pégourié, Rieke, Rieke, Roche, Roche, S. Stolovy, Schutte, Serabyn, Simpson, van Dishoeck, Williams, Woodward, Zubko   +39 more
core   +2 more sources

Theranostic nanoplatform for high‐performance dual‐modal magnetic resonance imaging‐guided therapy of orthotopic hepatocellular carcinoma

BMEMat, EarlyView.
This article introduces a biomimetic Mn‐doped polydopamine nanoplatform (HAMM NPs) coated with cancer cell membranes. It enables targeted hepatocellular carcinoma theranostics via T1/T2 dual‐mode magnetic resonance imaging and tumor microenvironment‐triggered sonodynamic therapy/chemodynamic therapy, achieving potent antitumor efficacy in subcutaneous ...
Jiayin Lin, Wenbo Chen, Xiuqi Hou, Kai Wang, Fan Liu, Ruling Zhang, Zhong Cao, Jian Zheng   +7 more
wiley   +1 more source

Vacancy defect‐induced electron homing breaks phosphodiester bonds for RNA depletion‐driven cancer therapy

BMEMat, EarlyView.
Illustration of 5% S‐vacancy Bi2S3 mediated phosphodiester bonds cleavage in RNA of hepatocellular carcinoma cells, which suppressing ERI3 expression, inhibiting cell proliferation and promoting apoptosis. Abstract Genome‐wide hypertranscription is a hallmark of malignant progression.
Chuncheng Yang, Zehao Shen, Guangming Xiang, Zhe Liu, Huaxin Liu, Jiabei Li, Ao Wang, Yelin Wu, Peiran Zhao, Xingwu Jiang, Jinghan Wang, Xiaoqing Jiang, Wenbo Bu   +12 more
wiley   +1 more source

Spitzer spectroscopy of circumstellar disks in the 5 Myr old upper Scorpius OB association [PDF]

, 2009
We present mid-infrared spectra between 5.2 and 38 μm for 26 disk-bearing members of the ~5 Myr old Upper Scorpius OB association obtained with the Infrared Spectrograph (IRS) onboard the Spitzer Space Telescope. We find clear evidence for changes in the
Carpenter, John M., Dahm, S. E.
core   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Spectral Energy Distributions of Be and Other Massive Stars

, 2010
We present spectrophotometric data from 0.4 to 4.2 microns for bright, northern sky, Be stars and several other types of massive stars. Our goal is to use these data with ongoing, high angular resolution, interferometric observations to model the density
B. Taylor, Bertout C., D. P. Clemens, D. R. Gies, Dougherty S. M., Dudley R. E., E. D. Grundstrom, G. H. Schaefer, Hony S., Hubert A. M., Kastner J. H., Lamers H. J. G. L. M., M. V. McSwain, N. D. Richardson, Najarro F., Porter J. M., S. J. Williams, T. S. Boyajian, van Kerkwijk M. H., Waters L. B. F. M., Y. Touhami, Zsoldos E.   +21 more
core   +1 more source

Three-dimensional interferometric, spectrometric, and planetary views of Procyon [PDF]

, 2012
We used a new realistic 3D radiative-hydrodynamical model atmosphere of Procyon generated with the Stagger Code and synthetic spectra computed with the radiative transfer code Optim3D to re-analyze interferometric and spectroscopic data from the optical ...
A. Chiavassa, A. Matter, Absil, Allard, Allende Prieto, Arentoft, Asplund, Aufdenberg, B. Lopez, Barban, Barman, Bedding, Bedding, Belkacem, Bessel, Bessel, Bessell, Bigot, Bigot, Bonanno, Brown, Burrows, Casagrande, Chiavassa, Chiavassa, Chiavassa, Chollet, Code, Collet, Dravins, Eggen, Eggenberger, Eggenberger, Freytag, Freytag, Fuhrmann, Gatewood, Gelly, Girard, Glushneva, Gray, Gray, Griffin, Guenther, Guenther, Gustafsson, Hanbury Brown, Hanbury Brown, Hartmann, Hayek, Kervella, Kervella, Kervella, Kervella, Kjeldsen, L. Bigot, M. Asplund, Martić, Martić, Matter, Matthews, Mihalas, Monnier, Mosser, Mourard, Mozurkewich, Nelson, Nordlund, Nordlund, Nordlund, P. Kervella, Provencal, Provost, Quirrenbach, R. Collet, Rodríguez-Pascual, Schaeberle, Shao, Short, Steffen, Strand, ten Brummelaar, van Belle, van Leeuwen, Verner, Wittkowski, Z. Magic, Zhao   +87 more
core   +5 more sources

Enhanced Nonlinear Optical Absorption Properties and Carrier Dynamics of Violet Phosphorene by Oxidation for Ultrafast Photonic Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates the effects of oxidation treatment on the nonlinear optical absorption properties and carrier dynamics of two‐dimensional violet phosphorene (VP), elucidating the underlying physical mechanisms. Furthermore, ultrashort laser pulses are achieved utilizing the enhanced saturation absorption and shortened carrier relaxation ...
Bo Li, Han Pan, Qingling Tang, Zhongben Pan, Hongwei Chu, Ying Li, Dechun Li   +6 more
wiley   +1 more source

Composite materials based on dual network cross‐linking for flexible sensors

FlexMat, EarlyView.
Utilizing hydrogen bond lithium bond dual network structure to effectively enhance the rapid self‐healing properties of flexible ionic materials. Abstract The further development of flexible ionic materials is limited by the evaporation or leakage of their internal liquid state. This article presents a composite flexible ionic material with no internal
Xiaoming Wang, Hongxin Zhu, Yu Feng, Hean Liao, Ling Weng, Xiaorui Zhang, Dong Yue   +6 more
wiley   +1 more source