Results 71 to 80 of about 3,089,831 (323)

Dual picosecond fast tunable optical parametric amplifier laser system for wide-field nonlinear optical microscopy

APL Photonics
In the last decades, nonlinear optical microscopy techniques, such as two-Photon Excited Fluorescence (2PEF), Sum Frequency Generation (SFG), and Hyperspectral Coherent Anti-Stokes Raman Scattering (H-CARS) microscopy, emerged as powerful tools to image ...
Federico Vernuccio, Assia Benachir, Eric Michele Fantuzzi, Benoit Morel, Simone Bux, Erwann Martin, José Villanueva, Yoann Pertot, Nicolas Thiré, Sandro Heuke, Hervé Rigneault   +10 more
doaj   +1 more source

Development of difference spectrophotometric method for the estimation of leflunomide in tablet dosage form [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2012
A new simple, accurate, precise, highly sensitive and reproducible difference spectrophotometric method for the determination of leflunomide in bulk and pharmaceutical dosage form is described. Difference spectroscopic method is based on the principle
Lakshmana Prabu S., Prakash Suriya T.N.K., Shanmugarathinam A.   +2 more
doaj   +1 more source

Physical Simulation of Ultrasonic Imaging Logging Response

Sensors, 2022
Ultrasonic imaging logging can visually identify the location, shape, dip angle and orientation of fractures and holes. The method has not been effectively applied in the field; one of the prime reasons is that the results of physical simulation ...
Junqiang Lu, Jiyong Han, Jinping Wu, Xiaohua Che, Wenxiao Qiao, Jiale Wang, Xu Chen   +6 more
doaj   +1 more source

Fusing gauge theory tree amplitudes into loop amplitudes [PDF]

Nuclear Physics B, 1995
49 pages, SLAC-PUB ...
Lance J. Dixon, David A. Kosower, Zvi Bern, David C. Dunbar   +3 more
openaire   +6 more sources

A synthetic benzoxazine dimer derivative targets c‐Myc to inhibit colorectal cancer progression

Molecular Oncology, EarlyView.
Benzoxazine dimer derivatives bind to the bHLH‐LZ region of c‐Myc, disrupting c‐Myc/MAX complexes, which are evaluated from SAR analysis. This increases ubiquitination and reduces cellular c‐Myc. Impairing DNA repair mechanisms is shown through proteomic analysis.
Nicharat Sriratanasak, Bodee Nutho, Worawat Wattanathana, Narumon Phaonakrop, Bunnatut Panasawatwong, Katharina Erlenbach‐Wuensch, Sittiruk Roytrakul, Regine Schneider‐Stock, Pithi Chanvorachote   +8 more
wiley   +1 more source

Femtosecond Laser Percussion Drilling of Silicon Using Repetitive Single Pulse, MHz-, and GHz-Burst Regimes

Micromachines
In this contribution, we present novel results on top-down drilling in silicon, the most important semiconductor material, focusing specifically on the influence of the laser parameters.
Pierre Balage, Manon Lafargue, Théo Guilberteau, Guillaume Bonamis, Clemens Hönninger, John Lopez, Inka Manek-Hönninger   +6 more
doaj   +1 more source

Amplitude bounds for biochemical oscillators

, 2017
We present a practical method to obtain bounds for the oscillation minima and maxima of large classes of biochemical oscillator models that generate oscillations through a negative feedback.
Jörg, David J.
core   +1 more source

Amplitude- and Fluctuation-Based Dispersion Entropy

Entropy, 2018
Dispersion entropy (DispEn) is a recently introduced entropy metric to quantify the uncertainty of time series. It is fast and, so far, it has demonstrated very good performance in the characterisation of time series.
Hamed Azami, J. Escudero
semanticscholar   +1 more source

Full one-loop amplitudes from tree amplitudes [PDF]

Journal of High Energy Physics, 2008
We establish an efficient polynomial-complexity algorithm for one-loop calculations, based on generalized $D$-dimensional unitarity. It allows automated computations of both cut-constructible {\it and} rational parts of one-loop scattering amplitudes from on-shell tree amplitudes.
Giele, Walter T., Kunszt, Zoltan, Melnikov, Kirill   +2 more
openaire   +5 more sources

Blocking the voltage‐gated sodium channel hNav1.5 as a novel pH‐dependent mechanism of action for tamoxifen

FEBS Open Bio, EarlyView.
Patch‐clamp recordings revealed that tamoxifen inhibits voltage‐gated sodium channels, especially under acidic conditions, both common in metastatic cancer cells. These effects may explain certain antitumor properties of tamoxifen, highlighting a novel mechanism of action beyond its known endocrine effects.
Karl Josef Föhr, Michael Fauler, Thomas Zimmer, Bettina Jungwirth, Hubert Schrezenmeier, David Alexander Christian Messerer   +5 more
wiley   +1 more source