Results 51 to 60 of about 1,345,648 (320)

Ossified Posterior Longitudinal Ligament Existing at an Intervertebral Level Limits Compensatory Mechanism of Cervical Lordosis after Muscle-Preserving Selective Laminectomy

Spine Surgery and Related Research, 2019
Introduction: As C7 slope increases, lordotic change of C2-C7 angle compensates for adjustments in cervical sagittal balance. However, ossification of the posterior longitudinal ligament (OPLL) may affect the compensatory mechanism of the cervical spine.
Satoshi Nori, Ryoma Aoyama, Ken Ninomiya, Satoshi Suzuki, Ukei Anazawa, Tateru Shiraishi   +5 more
doaj   +1 more source

On the MIMO Capacity with Residual Transceiver Hardware Impairments [PDF]

, 2014
Radio-frequency (RF) impairments in the transceiver hardware of communication systems (e.g., phase noise (PN), high power amplifier (HPA) nonlinearities, or in-phase/quadrature-phase (I/Q) imbalance) can severely degrade the performance of traditional ...
Björnson, Emil, Coldrey, Mikael, Debbah, Mérouane, Matthaiou, Michail, Zhang, Xinlin   +4 more
core   +4 more sources

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

Molecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala, Sini Ahonen, Sara Peltola, Aura Tuohisto‐Kokko, Olaya Esparta, Peppi Suominen, Anne Jokilammi, Iman Farahani, Deepankar Chakroborty, Nikol Dibus, Steffen Boettcher, Tomi T. Airenne, Mark S. Johnson, Lisa D. Eli, Klaus Elenius, Kari J. Kurppa   +15 more
wiley   +1 more source

Breakdown of Kinetic Compensation Effect in Physical Desorption

, 2017
The kinetic compensation effect (KCE), observed in many fields of science, is the systematic variation in the apparent magnitudes of the Arrhenius parameters $E_a$, the energy of activation, and $\nu$, the preexponential factor, as a response to ...
Calbi, M. Mercedes, Silbert, Leonardo E., Zuniga-Hansen, Nayeli   +2 more
core   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

A new circular photonic crystal fiber for effective dispersion compensation over E to L wavelength bands

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper presents a new circular photonic crystal fiber (C-PCF) for effective dispersion compensation covering E to L wavelength bands ranging from 1360-1625 nm.
M. M. Haque, M. S. Rahman, M. Samiul Habib, M. Selim Habib, S. M. A. Razzak   +4 more
doaj   +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

Methodological foundations of directional stability of a machine-tractor unit in sloping agriculture [PDF]

BIO Web of Conferences
The article describes a method for holding a tractor unit (MTA) on a slope when performing technological operations by changing the angles of the tractor wheels and the mounted machine. The variants of the MTA movement trajectories are considered, graphs
Tarasova Saria, Asmankin Evgeny, Ushakov Yuriy, Ivanov Pavel, Neufeld Elena, Rotova Victoria   +5 more
doaj   +1 more source

A New PWM Operational Scheme for MicroLED Displays Using Inverter and Dynamic SWEEP Signal Slope for Low Gray Level Expression

IEEE Access, 2023
In this paper, we present a novel pulse width modulation (PWM) operational scheme for micro-light-emitting-diode ( $\mu$ LED) displays using inverter and dynamic SWEEP signal slope.
Kyeong-Soo Kang, Ji-Hwan Park, Chanjin Park, Ji-Ho Lee, Soo-Yeon Lee   +4 more
doaj   +1 more source

Stockholder and Bondholder Reactions To Revelations of Large CEO Inside Debt Holdings: An Empirical Analysis (CRI 2009-005) [PDF]

, 2009
We conduct an event study of stockholders’ and bondholders’ reactions to companies’ initial reports of their CEOs’ inside debt positions, as required by SEC disclosure regulations that became effective early in 2007.
Wei, Chenyang, Yermack, David
core   +1 more source