Results 31 to 40 of about 143,337 (261)

Stable Multi-Wavelength Thulium-Doped Fiber Laser With Two Cascaded Single-Mode-Four-Mode-Single-Mode Fiber Interferometers

IEEE Access, 2021
We propose and experimentally demonstrate a multi-wavelength thulium-doped fiber laser using two cascaded single-mode-four-mode-single-mode (SFS) fiber interferometers and a 150-m-long highly nonlinear fiber.
Ying Guo, Fengping Yan, Ting Feng, Qi Qin, Luna Zhang, Biao Guan, Wenguo Han, Zhuoya Bai, Hong Zhou, Yuping Suo   +9 more
doaj   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

Molecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller, Janina Müller, Efstathios‐Iason Vlachavas, Lukas Beumers, Lena Fleischhacker, Sara Burmester, Angelika Wörner, Sabine Karolus, Dominic Helm, Cindy Körner, Stefan Wiemann   +10 more
wiley   +1 more source

Kilowatt-level spectrum-programmable multi-wavelength fiber laser

High Power Laser Science and Engineering
This study demonstrates a kilowatt-level, spectrum-programmable, multi-wavelength fiber laser (MWFL) with wavelength, interval and intensity tunability. The central wavelength tuning range is 1060–1095 nm and the tunable number is controllable from 1 to ...
Yanzhao Ke, Jiangming Xu, Jun Ye, Junhong He, Junrui Liang, Yang Zhang, Yidong Guo, Lei Du, Jinyong Leng, Pu Zhou, Lei Si   +10 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

A Novel Approach to Evaluating Crosstalk for Near-Infrared Spectrometers

Sensors
Multi-channel and multi-parameter near-infrared spectroscopy (NIRS) has gradually become a new research direction and hot spot due to its ability to provide real-time, continuous, comprehensive indicators of multiple parameters.
Zemeng Chen, Xinliang Cao, Xianglin Li, Boan Pan, Pengbo Wang, Ting Li   +5 more
doaj   +1 more source

A New Method for Simultaneous Determination of Phenolic Acids, Alkaloids and Limonoids in Phellodendri Amurensis Cortex

Molecules, 2019
Phellodendri Amurensis Cortex (PAC) is a well-known herbal medicine in China with complex components, but the previous research has mostly focused on its alkaloids analysis.
Yao Chen, Zhao Zhang, Yang Zhang, Xiaomei Zhang, Zhipeng Zhang, Yonghong Liao, Bengang Zhang   +6 more
doaj   +1 more source

Motion Artifact Reduction in Wearable Photoplethysmography Based on Multi-Channel Sensors with Multiple Wavelengths

Sensors, 2020
Photoplethysmography (PPG) is an easy and convenient method by which to measure heart rate (HR). However, PPG signals that optically measure volumetric changes in blood are not robust to motion artifacts.
Jongshill Lee, Minseong Kim, Hoon-Ki Park, In Young Kim   +3 more
doaj   +1 more source

Coordinated multi-wavelength observations of Sgr A* [PDF]

Journal of Physics: Conference Series, 2008
15 pages, 7 figures, contribution for the conference "The Universe under the Microscope" (AHAR 2008), to be published in Journal of Physics: Conference Series by Institute of Physics ...
Eckart, A., Schödel, R., Baganoff, F. K., Morris, M., Bertram, T., Dovciak, M., Dowries, D., Duschl, W. J., Karas, V., König, S., Krichbaum, T., Krips, M., Kunneriath, D., Lu, R.-S., Markoff, S., Mauerhan, J., Meyer, L., Moultaka, J., Muzic, K., Najarro, F., Schuster, K., Sjouwerman, L., Straubmeier, C., Thum, C., Vogel, S., Wiesemeyer, Helmut, Witzel, G., Zamaninasab, M., Zensus, A.   +28 more
openaire   +6 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Retrieving Aerosol Characteristics From the PACE Mission, Part 2: Multi-Angle and Polarimetry

Frontiers in Environmental Science, 2019
The Plankton, Aerosol, Clouds, ocean Ecosystem (PACE) mission presents new opportunities and new challenges in applying observations of two complementary multi-angle polarimeters for the space-based retrieval of global aerosol properties.
Lorraine A. Remer, Kirk Knobelspiesse, Peng-Wang Zhai, Feng Xu, Olga V. Kalashnikova, Jacek Chowdhary, Otto Hasekamp, Oleg Dubovik, Lianghai Wu, Ziauddin Ahmad, Ziauddin Ahmad, Emmanuel Boss, Brian Cairns, Odele Coddington, Anthony B. Davis, Heidi M. Dierssen, David J. Diner, Bryan Franz, Robert Frouin, Bo-Cai Gao, Amir Ibrahim, Amir Ibrahim, Robert C. Levy, J. Vanderlei Martins, Ali H. Omar, Omar Torres   +25 more
doaj   +1 more source