Results 81 to 90 of about 3,408,611 (301)

A Dual-Mode CMOS Power Amplifier with an External Power Amplifier Driver Using 40 nm CMOS for Narrowband Internet-of-Things Applications

open access: yesNanomaterials
The narrowband Internet-of-Things (NB-IoT) has been developed to provide low-power, wide-area IoT applications. The efficiency of a power amplifier (PA) in a transmitter is crucial for a longer battery lifetime, satisfying the requirements for output ...
Hyunjin Ahn   +6 more
doaj   +1 more source

Les étudiants préfèrent Facebook

open access: yesDistances et Médiations des Savoirs, 2014
This paper presents the results of a study of the methods of learning and the use of technologies by Quebec university students, which shows that they are little attracted by distance learning and online learning. Hypothesizing that their perceptions may
Patrick Guillemet
doaj   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

Silicon Integrated Dual-Mode Interferometer with Differential Outputs

open access: yesBiosensors, 2017
The dual-mode interferometer (DMI) is an attractive alternative to Mach-Zehnder interferometers for sensor purposes, achieving sensitivities to refractive index changes close to state-of-the-art.
Niklas Hoppe   +8 more
doaj   +1 more source

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

open access: yesFEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface

open access: yesIEEE Open Journal of Antennas and Propagation
This paper presents a novel dual-mode chiral metasurface (CM) designed to achieve strong circular dichroism (CD) in both transmission and reflection mode within the Ku-band.
Muhammad Noman   +6 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Perception of students on performance of dual-mode education: information quality perspective [PDF]

open access: yes, 2007
In recent years, there have been radical developments in higher education in China. The most significant of these has been the aspiration of Chinese universities to form partnerships with overseas universities that allow their students to have the ...
Al-Hakim, Latif
core   +1 more source

Dual-Mode Teaching in the Language Classroom: Reconciling the Pandemic, Equity, and the Future of Quality Language Teaching Pedagogy

open access: yes, 2022
The COVID-19 pandemic sent New Zealand universities into crisis, and as a key crisis response measure, classes were mostly moved online. While navigating national public health settings, educators simultaneously had to innovate quickly: to keep our ...
Olsen-Reeder, Vincent Ieni   +1 more
core   +1 more source

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