Results 111 to 120 of about 1,671,198 (361)

Strange Vector Form Factors from Parity-Violating Electron Scattering [PDF]

Journal of Physics: Conference Series, 2011
The simplest models might describe the nucleon as 3 light quarks, but this description would be incomplete without inclusion of the sea of glue and q-qbar pairs which binds it. Early indications of a particularly large contribution from strange quarks in this sea to the spin and mass of the nucleon motivated an experimental program examining the role ...
D. S. Armstrong, R. Michaels, Anthony W. Thomas, Kent Paschke   +3 more
openaire   +3 more sources

Spectral Efficiency and Energy Efficiency of OFDM Systems: Impact of Power Amplifiers and Countermeasures [PDF]

, 2013
In wireless communication systems, the nonlinear effect and inefficiency of power amplifier (PA) have posed practical challenges for system designs to achieve high spectral efficiency (SE) and energy efficiency (EE).
Ho, Chin Keong, Joung, Jingon, Sun, Sumei   +2 more
core   +1 more source

Remaining Burden of Spinal Muscular Atrophy Among Treated Patients: A Survey of Patients and Caregivers

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinal muscular atrophy (SMA) significantly impacts motor function. This study aimed to assess the persistent burden and unmet needs among currently treated patients with SMA and their caregivers. Methods Two complementary web‐based surveys were distributed in August 2024 among patients with SMA and their caregivers.
Julie A. Parsons, Natalie Land, Melissa Culhane Maravic, Claire Cagle, Amal Jamaleddine, Hemal Shah, Thomas Brown, Christabella Cherubino, Mouhamed Gueye   +8 more
wiley   +1 more source

One-cycle control of switching converters [PDF]

, 1995
A new large-signal nonlinear control technique is proposed to control the duty-ratio d of a switch such that in each cycle the average value of a switched variable of the switching converter is exactly equal to or proportional to the control reference in
Smedley, Keyue M., Ćuk, Slobodan
core   +1 more source

Effects of Pharmacologic and Nonpharmacologic Interventions for the Management of Sleep Problems in People With Fibromyalgia: Systematic Review and Network Meta‐Analysis of Randomized Controlled Trials

Arthritis Care &Research, EarlyView.
Objective Fibromyalgia is a chronic condition characterized by widespread musculoskeletal pain and fatigue. Almost everyone with fibromyalgia has sleep problems. We aimed to evaluate the effectiveness and safety of current interventions for the management of fibromyalgia‐related sleep problems.
Jemma Hudson, Mari Imamura, Clare Robertson, Daniel Whibley, Lorna Aucott, Katie Gillies, Paul Manson, Debra Dulake, Abhishek Abhishek, Nicole K. Y. Tang, Gary J. Macfarlane, Miriam Brazzelli   +11 more
wiley   +1 more source

Meson Exchange Effects on Electron Scattering Form Factors in 12C

Nuclear Physics B, 1970
The role of meson exchange currents in electromagnetic (and weak) interactionsof nuclei has been repeatedly inquired into. Interest was generally on static moments, reactions with photons or sum rules. In the past years, however, excitation of nuclear discrete levels by electron scattering has developed into a powerful tool for the investigation of ...
Albert Lumbroso, Marc Chemtob
openaire   +2 more sources

Elastic and Inelastic Electron-Nucleus Scattering Form Factors for Be9 Nucleus

UHD Journal of Science and Technology, 2020
   The computations of the elastic and inelastic Coulomb form factors for the electron-nucleus scattering of Beryllium nucleus Be9 have performed with Core Polarization (CP) effects including the realistic Michigan sum of Three Range Yukawa (M3Y) Interaction, and the other residual interaction which is Modified Surface Delta Interaction (MSDI).
Hawar Muhamad Dlshad, Aziz H. Fatah, Adil Mohammed Hussain   +2 more
openaire   +4 more sources

The Impact of the Internet on Retail Competition: Evidence from Technological Differences in Internet Access [PDF]

, 2010
Does the internet increase competition? To address this question, I exploit two institutional details unique to Germany: (1) Some municipalities received glass fibre cables that cannot be upgraded to DSL; I use these municipalities as a treatment group ...
Gebhardt, Georg
core   +2 more sources

American College of Rheumatology Guidance Statements for Addressing Mental Health Concerns in Youth With Pediatric Rheumatologic Diseases

Arthritis Care &Research, EarlyView.
Objective Pediatric rheumatologic diseases (PRDs) are characterized by high rates of anxiety and depression known to impact health‐related outcomes. We present guidance statements to assess and manage mental health concerns for youth with PRDs in pediatric rheumatology practice.
Natoshia R. Cunningham, Ashley N. Danguecan, Samantha L. Ely, Yaa Amponsah, Alaina Davis, Suzanne Edison, Julia Harris, Jordan T. Jones, Alana Goldstein‐Leever, Alison Manning, Anne McHugh, Crystal Mui, Ekemini Ogbu, Nikki Reitz, Martha Rodriguez, Natalie Rosenwasser, Alyse Tankanow, Erin Treemarcki, Katherine Winner, Tamar B. Rubinstein, Andrea M. Knight, for the CARRA Mental Health Workgroup   +21 more
wiley   +1 more source

Proton and Neutron Irradiation Tests of Readout Electronics of the ATLAS Hadronic Endcap Calorimeter

, 2012
The readout electronics of the ATLAS Hadronic Endcap Calorimeter will have to withstand the about ten times larger radiation environment of the future high-luminosity LHC (HL-LHC) compared to their design values.
Menke, Sven
core   +1 more source