Results 41 to 50 of about 494,013 (297)

An Exact No Free Lunch Theorem for Community Detection

, 2019
A precondition for a No Free Lunch theorem is evaluation with a loss function which does not assume a priori superiority of some outputs over others. A previous result for community detection by Peel et al.
AJ Gates, B Hauer, D Lai, DH Wolpert, F Radicchi, J Zhang, L Hubert, L Peel, L Peel, MEJ Newman, P Zhang, S Romano, TO Kvalseth, Z Yang   +13 more
core   +1 more source

Demonstration of long-reach PON using 10 Gb/s 3R burst-mode wavelength converter [PDF]

, 2013
Long-reach optical access networks promise significant cost savings. To merge existing metro and access networks to a single long-reach network, the long-reach technology has to address not only the power loss and fiber dispersion problems but also ...
Bauwelinck, Johan, Koonen, Ton, Tangdiongga, Eduward, Tran, Nguyen-Cac, Yin, Xin   +4 more
core   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

A Novel Reverse Combination Configuration to Reduce Mismatch Loss for Stratospheric Airship Photovoltaic Arrays

Applied Sciences
Enhancing the output power of stratospheric airship photovoltaic arrays during months with weak irradiance is crucial for extending the endurance of airships.
Chuan Shan, Kangwen Sun, Dongji Cheng, Xinzhe Ji, Jian Gao, Tong Zou   +5 more
doaj   +1 more source

Security proof of practical quantum key distribution with detection-efficiency mismatch

Physical Review Research, 2021
Quantum key distribution (QKD) protocols with threshold detectors are driving high-performance QKD demonstrations. The corresponding security proofs usually assume that all physical detectors have the same detection efficiency.
Yanbao Zhang, Patrick J. Coles, Adam Winick, Jie Lin, Norbert Lütkenhaus   +4 more
doaj   +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

Calculation of Site Attenuation for Calculable Dipole Antennas [PDF]

Journal of Electromagnetic Engineering and Science, 2020
This paper presents a method for calculating the site attenuation (SA) of an open-area test site (OATS) for a pair of calculable dipole antennas with a 3-dB hybrid balun in the frequency range of 30 MHz to 1 GHz.
Ki-Chai Kim, Hyuk-Jun Seo, Tae-Weon Kang, Jae-Yong Kwon, Jeong-Hwan Kim   +4 more
doaj   +1 more source

Tensile strained $In_{x}Ga_{1-x}P$ membranes for cavity optomechanics [PDF]

, 2014
We investigate the optomechanical properties of tensile-strained ternary InGaP nanomembranes grown on GaAs. This material system combines the benefits of highly strained membranes based on stoichiometric silicon nitride, with the unique properties of ...
Aspelmeyer, M., Cole, G. D., Gärtner, C., Hoelscher-Obermaier, J., Nia, R. Moghadas, Purdy, T. P., Regal, C. A., Schmöle, J., Siquans, K., Wieczorek, W., Yu, P. -L.   +10 more
core   +3 more sources

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

Mitigation of mismatch losses in solar PV systems: a hybrid L-shaped propagated array configuration approach

Frontiers in Energy Research
There has been a global expansion of solar electricity during the past decades. Solar photovoltaic (PV) electricity generation is not only simple but also environmentally benign and cost-effective.
Belqasem Aljafari, S. Devakirubakaran, Praveen Kumar Balachandran, Sudhakar Babu Thanikanti   +3 more
doaj   +1 more source