929 research outputs found
Band Playing for Dance
No full textThis is a black and white photo of a band at a dance. The band is on stage, and there are eight men who are visible and each is holding an instrument in preparation to play. There is a man standing toward the front of the stage looking toward and conducting the band, and there are spectators watching the band in front of the stage. There is a young man singing toward the front of the stage as well. There is a sign hanging above the band reading Presenting FRANCIS CRAIG .https://scholarsjunction.msstate.edu/ua-blocker-photograph/1878/thumbnail.jp
Woman on Stage with Band
No full textThis is a black and white photo of a woman on stage with the band and a presenter. The woman is standing between a presenter and the conductor, and the band is seated with their instruments. The presenter is talking into a microphone, and the woman and conductor are looking down or to the side and smiling. Everyone in the photo is wearing formal attire. There is a fabric display behind the stage in the background with a sign hanging above it that reads PRESENTING FRANCIS CRAIG , and there are spectators in front of the stage watching the presenter.https://scholarsjunction.msstate.edu/ua-blocker-photograph/1900/thumbnail.jp
No ad blockers for old men? : demographic evidence for ad blocker usage from Germany
No full textWeb users are turning to ad blockers to avoid ads because they perceive them as an invasion of privacy, as annoying or as slackening their internet browsing experience. There has been significant research into factors driving ad blocker adoption. In this paper, the author will highlight significance correlation between ad blocker usage and age. The author conducted an online survey and built two groups, ad blocker users and non-users. When checking for significant differences in the demographic data, the author has found significant difference in the age of ad blocker users
Influence of β(1) Adrenergic Receptor Genotype on Longitudinal Measures of Left Ventricular Ejection Fraction and Responsiveness to ß-Blocker Therapy in Patients With Duchenne Muscular Dystrophy
No full textThe purpose of this study was to determine whether the longitudinal progression of decline in left ventricular ejection fraction (LVEF) in Duchenne muscular dystrophy (DMD) patients is moderated by ADRB1 genotype and whether the efficacy of ß-blocker therapy is influenced by genotype status. About 147 DMD patients (6-34 years.) were analyzed with a focus on β(1) adrenergic receptor (ADRB1) genotype variants. Patients were grouped by ADRB1 genotype resulting in Gly389 patients and Arg389 patients. A generalized additive mixed effects model was used to examine differences in the nonlinear trend of LVEF across patient ages between genotype groups and for ß-blocker use. Both genotype groups displayed a progressive decline in LVEF starting around the mean age of ambulation loss (~12 years). However, there was no difference between genotype groups in the progression of decline in LVEF. There was a significant effect of ß-blocker use on longitudinal LVEF, wherein patients on ß-blockers had systematically lower LVEF when compared to patients not on ß-blockers. However, the effect of ß-blocker therapy on LVEF was not affected by ADRB1 genotype. The current study did not demonstrate an influence of patient ADRB1 genotype on longitudinal LVEF in our cohort. Despite previous literature suggesting a positive influence of ß-blocker use on cardiac function in DMD patients and of an ADRB1 genotypic difference in responsiveness to ß-blocker use, we did not observe this in our cohort. Interestingly, our cohort did not demonstrate a positive influence of ß-blocker use on LVEF measures
19.1 A 300MHz-BW, 27-to-38dBm In-Band OIP3 sub-7GHz Receiver for 5G Local Area Base Station Applications
No full textRecently, the so-called sub-6GHz band of the 5G new radio (NR) has been extended to 7.125GHz to address the relentless customer demand for higher data-rate communication. This demands a new design approach for the local area base-station (LA-BS) receivers (RXs) to cover a wide operating frequency range of 0.41 to 7.125GHz. Moreover, for NR bands above 3GHz, the maximum RF bandwidth (BW) is as high as 400MHz, in which a -35dBm modulated in-band (IB) blocker can be present. These impose stringent BW and IB linearity requirements for the baseband amplifiers in the LA-BS receivers. In addition to IB interferences, a -15dBm continuous-wave (CW) out-of-band (OOB) close-in blocker can also be present at 60MHz offset frequency from the passband edges, thus demanding a highly selective RX. Finally, the blocker 1dB compression point (B1textdB) becomes a key parameter for local area co-location applications in which the power of the far-out OOB blocker can be as large as -4dBm.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic
A Six-Phase Two-Stage Blocker-Tolerant Harmonic-Rejection Receiver
No full text| openaire: EC/H2020/704947/EU//ADVANTAG5Modern wideband receivers need to operate linearly in the presence of strong out-of-band blockers. In this article, we introduce a blocker-tolerant harmonic rejection (HR) receiver, which can suppress blockers at the local oscillator harmonics. The suppression is achieved by applying the HR in two stages, such that the first HR already occurs at the first gain-stage output. The proposed receiver achieves this HR with a simple six-phase local-oscillator (LO) clocking. The proposed design also uses simple gain coefficients of ±1 while implementing HR in two stages that compensates for the mismatch effects of each stage. In addition, the near-band blocker linearity is improved by implementing a third-order baseband feedback response, which acts in conjunction with the N -path filtering. Implemented in a 28-nm Fully-Depleted Silicon-on-Insulator (FDSOI) process, the receiver demonstrates the 18-37-dB HR from the first stage and 46-53 dB of HR in total. Furthermore, a blocker compression point (BCP) of 2.5 dBm fora third harmonic blocker and a near-band BCP of -6.5 dBm are achieved.Peer reviewe
Reduced occurrence of appropriate therapy for ventricular arrhythmias after beta-blocker uptitration following implant of a primary prevention CRT-defibrillator
No full textBackground: Absence of beta-blocker use independently predicts appropriate therapy. Following cardiac resynchronisation therapy (CRT) implant, reverse remodelling and protection against bradycardia allows for beta-blocker dose uptitration. The differential dosing effects on the occurrence of a first episode of appropriate therapy in primary prevention CRT-defibrillator (CRT-D) patients remains unstudied. Methods and Results: Changes in beta-blocker dose following CRT-D in consecutive primary prevention patients implanted between 2008 and 2015 were retrospectively studied. Beta-blocker dose was expressed as percent of target dose. Uptitration of beta-blocker dose following implant was calculated as the change in percent of target dose between implant and 6-months follow-up. Results from a prospectively maintained database of all device analysis were used to determine the occurrence of appropriate therapy. A total of 162 patients (68 +/- 8 years) were studied. One hundred and ten (68%) patients underwent uptitration (mean 47 +/- 19% in target dose) and 52 (32%) remained on a stable beta-blocker dose. During 37 +/- 22 months follow-up, the cumulative percent of appropriate therapy was 31% in patient receiving no-uptitration versus 10% in the uptitrated patients (p < 0.001). After correction for known predictors of appropriate therapy, uptitration was independently associated with an OR = 0.263 (CI = 0.103-0.675; p = 0.001) for the occurrence of appropriate therapy. Every 1%-increase in target dose for beta-blocker associated with a significant lower risk for appropriate therapy, OR = 0.982 (CI = 0.965-0.999; p = 0.042). Conclusion: Following implantation of a primary prevention CRT-D, uptitration of beta-blockers associated with a reduced occurrence of a first episode of appropriate therapy for ventricular arrhythmias. An inverse dose-response effect was seen between beta-blocker dose and appropriate therapy.Martens, P (reprint author), Ziekenhuis Oost Limburg, Dept Cardiol, Schiepse Bos 6, B-3600 Genk, Belgium.
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SAW-less GNSS Front-End Amplifier with 80.4-dB GSM Blocker Suppression Using CMOS Directional Coupler Notch Filter
No full textThis paper presents a SAW-less GNSS front-end amplifier with GSM blocker suppression using CMOS directional coupler notch filter. The front-end amplifier is aimed at the GNSS receiver integrated in cellular phones. Based on our proposed CMOS stacked spiral-coupled (SSC) directional coupler working at the frequency of 900MHz as notch filter, the front end amplifier achieves a NF of 1.7dB and a 80.4-dB suppression of the GSM blocker while provides signal gain of 38.6-dB for the GPS L1-band signal.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000332006801001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Engineering, Electrical & ElectronicEICPCI-S(ISTP)
LHC Lepton Flavor Violation - ATLAS
No full textThe ATLAS collaboration has searched for lepton flavor violating processes in (1) decays of standard model particles (Z, tau, Higgs) and (2) decays of possible beyond the Standard Model particles (sneutrino, Z', LSP in RPV SUSY, quantum black holes). No excess is seen in any mode and limits are set
Searches for Charged Lepton Flavor Violation with the ATLAS Detector at the LHC
No full textATLAS has searched for charged lepton flavor violation in several processes, including decays of Standard Model particles ( and ) and beyond the Standard Model physics ( or decay, , neutralino decay in R-parity-violating supersymmetry theories, decays of Quantum Black Holes, and decays of heavy Majorana neutrinos). No significant excess of events over Standard Model expectations is seen and limits are set
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