Results 11 to 20 of about 2,080,550 (308)

Internet-based CBT for depression with and without telephone tracking in a national helpline: randomised controlled trial [PDF]

open access: yes, 2015
BACKGROUND Telephone helplines are frequently and repeatedly used by individuals with chronic mental health problems and web interventions may be an effective tool for reducing depression in this population. AIM To evaluate the effectiveness of a 6 week,
Christensen, Helen   +3 more
core   +1 more source

Resected thymic large cell neuroendocrine carcinoma: report of a case

open access: yesSurgical Case Reports, 2018
Background Thymic large cell neuroendocrine carcinoma (LCNEC) is extremely rare. The detailed clinical features of thymic LNCECs remain unknown. Case presentation A 90-year-old man with a history of diabetes mellitus, chronic renal failure, and an ...
Hiromitsu Domen   +12 more
doaj   +1 more source

Distribution Matching for Dimming Control in Visible-Light Region-of-Interest Signaling

open access: yesIEEE Photonics Journal, 2023
We propose a two-level dimmer based on binary distribution matching where a low-rate signal controls the output probability distribution of a high-rate bit sequence, which can be used in region-of-interest (RoI) signaling applications. To reduce the rate
Phuc Duc Nguyen   +5 more
doaj   +1 more source

Asymmetric Curvature Side-Polished Optical Fiber Coupler

open access: yesIEEE Photonics Journal, 2023
An optical fiber coupler composed of two side-polished fibers with different curvature is proposed. The live-fiber is polished with a typical radius of curvature of 0.25 m, while the branch-fiber is polished with a larger radius of curvature.
Takui Uematsu   +4 more
doaj   +1 more source

Optical-referenceless optical frequency counter with twelve-digit absolute accuracy

open access: yesScientific Reports, 2023
A simpler and more accurate measurement of absolute optical frequencies (AOFs) is very important for optical communications and navigation systems. To date, an optical reference has been needed for measuring AOFs with twelve-digit accuracy because of the
Atsushi Ishizawa   +4 more
doaj   +1 more source

Novel Wide-Range Frequency Offset Estimation and Compensation for Burst-mode CPFSK Upstream Signaling in TDM-Based Digital Coherent PON

open access: yesIEEE Photonics Journal, 2023
The burst-mode continuous phase frequency shift-keying (CPFSK) transmitter that combines a directly modulated laser diode, an electro absorption modulator and a semiconductor optical amplifier is attractive as a cost-effective transmitter for phase ...
Takuya Kanai   +4 more
doaj   +1 more source

Telephone conversation impairs sustained visual attention via a central bottleneck [PDF]

open access: yes, 2008
Recent research has shown that holding telephone conversations disrupts one's driving ability. We asked whether this effect could be attributed to a visual attention impairment.
A. Mack   +40 more
core   +2 more sources

Performance Evaluation of Uplink Multiuser MIMO-OFDM System With Single RF Chain Receiver

open access: yesIEEE Access, 2022
In response to the recent increase in wireless-traffic demand in various wireless communication networks, the number of spatial multiplexings, represented by multiple input multiple output (MIMO) systems, has been increasing.
Tomoki Murakami   +3 more
doaj   +1 more source

Implementing telephone triage in general practice: a process evaluation of a cluster randomised controlled trial [PDF]

open access: yes, 2015
Background: Telephone triage represents one strategy to manage demand for face-to-face GP appointments in primary care. However, limited evidence exists of the challenges GP practices face in implementing telephone triage.
A Fretheim   +34 more
core   +2 more sources

Home - About - Disclaimer - Privacy