Results 41 to 50 of about 149,510 (298)

Broadband Optical Frequency Comb Generation With Flexible Frequency Spacing and Center Wavelength

IEEE Photonics Journal, 2018
A broadband optical frequency comb with a flexible frequency spacing and a center wavelength is proposed and experimentally demonstrated. The proposed scheme consists of a single continuous-wave laser, cascaded Mach–Zehnder modulator (MZM) and ...
Siyuan Yu, Fangdi Bao, Hao Hu
doaj   +1 more source

Laser-actuated mechanical device [PDF]

, 1974
Actuator is portable and can be used in high-temperature (over 500 C) environments by incorporating tungsten metal film and quartz window. Actuator can be triggered when it is not directly in laser beam path by utilizing fiber optics.
Murphy, A. J., Yang, L. C.
core   +1 more source

RIPK4 function interferes with melanoma cell adhesion and metastasis

Molecular Oncology, EarlyView.
RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski, Sławomir Lasota, Ewelina Madej, Anna A. Brożyna, Małgorzata Szczygieł, Agnieszka Harazin‐Lechowska, Jan Czerbniak, Janusz Rys, Jaroslaw Czyz, Agnieszka Wolnicka‐Glubisz   +9 more
wiley   +1 more source

An Undersampling Communication System Based on Compressive Sensing and In-Fiber Grating

IEEE Photonics Journal, 2021
An undersampling free-space optical (FSO) communication system based on compressive sensing (CS) and in-fiber grating is proposed. Our proposal drastically mitigates the data scale unfavorable issue and reduces the great amount of required data.
Guoqing Wang, Dongrui Xiao, Li-Yang Shao, Fang Zhao, Jie Hu, Shuaiqi Liu, Huanhuan Liu, Chao Wang, Rui Min, Zhijun Yan   +9 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

3D printed near-infrared high-numerical aperture achromatic metalens

iScience
Summary: Traditional optical Fresnel microlenses have limitations such as large size, limited optical quality for imaging, and low focusing efficiency in achromatic lenses with high NA.
Heming Wei, Wenchen Hu, Jingtian Hu, Guoqiang He, Fufei Pang, Sridhar Krishnaswamy, Jan Nedoma, Carlos Marques   +7 more
doaj   +1 more source

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source

Precision near-infrared radial velocity instrumentation II: Non-Circular Core Fiber Scrambler [PDF]

, 2013
We have built and commissioned a prototype agitated non-circular core fiber scrambler for precision spectroscopic radial velocity measurements in the near-infrared H band.
Anglada-Escude, Guillem, Beichman, Chas, Bottom, Michael, Brinkworth, Carolyn, Ciardi, David, Crawford, Sam, Davison, Cassy, Gao, Peter, Johnson, John Asher, Kane, Stephen, Lin, Sean, Mennesson, Bertrand, Mills, Sean, Plavchan, Peter P., Prato, Lisa, Tanner, Angelle, Vasisht, Gautum, von Braun, Kaspar, Wallace, J. Kent, Walp, Bernie, White, Russel   +20 more
core   +2 more sources

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

SNR enhancement through phase dependent signal reconstruction algorithms for phase separated interferometric signals [PDF]

, 2007
We report several signal reconstruction algorithms for processing phase separated homodyne interferometric signals. Methods that take advantage of the phase of the signal are experimentally shown to achieve a signal-to-noise ratio (SNR) improvement of up
McDowell, Emily J., Sarunic, Marinko V., Yang, Changhuei, Yaqoob, Zahid   +3 more
core   +1 more source