Results 201 to 210 of about 126,627 (262)

Reactivity‐Guided Janus Graphene With Asymmetric Interfacial Electrostatics for Tunable Charge Transport

Advanced Materials, EarlyView.
Stepwise dual‐side functionalization creates covalent Janus graphene with chemically and electrostatically asymmetric interfaces. The resulting nonadditive surface‐potential response and pronounced charge‐transport modulation demonstrate a versatile route for tailoring the electronic properties of graphene.
Shishi Liu, Zhuting Hao, Mira Kreßler, Oguzhan Yücel, Lotte Polling, Adrián Dewambrechies, Wesley Pietsch, Philip Nickl, Felix Fels, Kevin Pagel, Markus R. Heinrich, Patryk Kusch, Kirill Bolotin, Xin Chen, Siegfried Eigler   +14 more
wiley   +1 more source

Face mask use and viral load in patients with mild symptoms of COVID-19. [PDF]

Einstein (Sao Paulo)
Costa MS, Alves CRL, Fonseca FGD, Sato HI, Rocha RP, Carvalho AF, Lourenço KL, Guimarães NS, Machado EL, Teixeira SMR, Tupinambás U, Takahashi RHC.   +11 more
europepmc   +1 more source

Highly Sensitive Broadband Photodetectors Based on Donor–Acceptor 2D Conjugated Coordination Polymers

Advanced Materials, EarlyView.
Donor–acceptor molecular design and chemical vapor deposition growth enable the two‐dimensional nickel‐tetraaminobenzoquinone films with strong broadband absorption and efficient charge separation. The resulting photodetectors exhibit a structured broadband response with a high responsivity of ∼3.1 A W−1 and a response time of ∼170 µs, which surpasses ...
Yunxu Chen, Jinxin Liu, Shuai Fu, Apurba Mahapatra, Dongxu Wang, Mike Hambsch, Angelika Wrzesińska‐Lashkova, Jing Wang, Fabian Paulus, Yana Vaynzof, Stefan C. B. Mannsfeld, Fuchun Zhang, Mischa Bonn, Renhao Dong, Xinliang Feng   +14 more
wiley   +1 more source

Unveiling optimal mother wavelets by COPRAS Method Analyzing speech signals despite face mask and shield obstacles. [PDF]

Sci Rep
Marxim Rahula Bharathi B, Balaji NS, Meena R, Raja Chandra Sekar M, Sivalingam KM, Yafang Y, Elumalai PV.   +6 more
europepmc   +1 more source

The Effect of Face Mask Wear on the Ocular Surface and Contact Lens Microbiome. [PDF]

Eye Contact Lens
Ozkan J, Majzoub ME, Khan M, Coroneo M, Thomas T, Willcox M.   +5 more
europepmc   +1 more source

Whispers in the Wind: Face Mask Sampling for Mycobacterium tuberculosis Detection in Children With Pulmonary Tuberculosis. [PDF]

J Infect Dis
Meiwes L, Kontsevaya I, Chesov D, Kulciţkaia S, Dreyer V, Hillemann D, Dlamini Q, Williams C, Barer M, Brinkmann F, Krüger R, Thee S, Kay A, Mandalakas AM, Lange C.   +14 more
europepmc   +1 more source

Wearable face mask-attached disposable printed sensor arrays for point-of-need monitoring of alkaline gases in breath. [PDF]

PNAS Nexus
Barandun G, Sanli A, Yap CL, Silva Pinto Collins A, Grell M, Kasimatis M, Levy JB, Güder F.   +7 more
europepmc   +1 more source

Correction: Face masks to prevent transmission of respiratory infections: Systematic review and meta-analysis of randomized controlled trials on face mask use. [PDF]

PLoS One
PLOS One Editors.
europepmc   +1 more source

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Detecting Faces With Face Masks

2021 44th International Conference on Telecommunications and Signal Processing (TSP), 2021
This paper deals with the evaluation of several methods for face detection when the face is covered by a mask. The methods evaluated are Haar cascade and Histogram of Oriented Gradients as feature-based approaches, Multitask Cascade Convolutional Neural Network, Max Margin Object Detection and TinyFace as convolutional neural network based approaches ...
Jiri Prinosil, Ondrej Maly
openaire   +2 more sources

Face Masks Defended

Pediatrics, 1976
Pediatricians caring for the newborn are particularly aware of unexpected deleterious outcomes of well-intentioned therapy. Oxygen, chloramphenicol, sulfadiazine, and continuous positive airway pressure are examples. Elsewhere in this issue Pape et al.1 suggest that intermittent positive-pressure ventilation provided by a tight-fitting face mask in low-
R M, Shuman, T K, Oliver
openaire   +2 more sources