Results 61 to 70 of about 6,775,054 (305)

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

A 3-to-5 V Input, 80 Peak-to-Peak Voltage (Vpp) Output, 2.75% Total Harmonic Distortion Plus Noise (THD+N), 2.9 μF Load Piezoelectric Actuator Driver with Four-Switch Buck–Boost

open access: yesActuators, 2023
As human–computer interaction has become increasingly popular, haptic technology has become a research topic of great interest, since vibration perception, as a type of haptic feedback, can enhance user experience during an interaction. However, the high
Rui Ye   +3 more
doaj   +1 more source

On Harvested Frequencies & On Powering Frequencies & On Unbound Frequencies

open access: yes
On Harvested Frequencies: The Tesla Resonant CollectorTesla did not invent free energy. He discovered that the Earth is already a power source. The planet is a spherical capacitor — ionosphere above, ground below, atmosphere as dielectric — continuously charged by 50 lightning strikes per second. The resonant frequency of this cavity is 7.83 Hz.
Godfrey, Mark Roy, Tesla, Nikola
openaire   +2 more sources

A New Frequency Transformer or Frequency Changer

open access: yesProceedings of the Institute of Radio Engineers, 1927
Alternating current having a frequency which is any fractional value of the frequency of a supplied current, can be obtained by means of a triode oscillator. The phenomenon seems to be due to the "attraction" of two nearly equal frequencies occurring in the triode circuit and to the non-linear characteristic of a triode.
openaire   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben   +4 more
wiley   +1 more source

Size-Prior-Oriented Target Detection and Recognition for Automotive SAR

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Automotive SAR target detection, which involves interpreting scenes or distinguishing different objects from SAR images, is a fundamental and critical problem in intelligent driving. An increasing number of methods have been proposed in airbone-SAR image
Zekang Fan   +5 more
doaj   +1 more source

Estimating stationary mass, frequency by frequency

open access: yesCoRR
Suppose we observe a trajectory of length $n$ from an exponentially $α$-mixing stochastic process over a finite but potentially large state space. We consider the problem of estimating the probability mass placed by the stationary distribution of any such process on elements that occur with a certain frequency in the observed sequence. We estimate this
Milind Nakul   +2 more
openaire   +4 more sources

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk   +10 more
wiley   +1 more source

Dual Polarized Reconfigurable Frequency Selective Surfaces [PDF]

open access: yes, 2013
Novel band-stop active frequency selective surfaces (FSS) capable of modifying their response for different polarizations are proposed. Geometries based on full rings, and split rings are employed.
Sanz-Izquierdo, B., Parker, E.A.
core   +1 more source

A circular switched parasitic array with directors for LoRa applications at 868 MHz

open access: yesElectronics Letters
The integration of directive elements into a circular switched parasitic array at 868 MHz is presented. The typical usage of reflective parasitic monopoles is supplemented with additional, shorter monopole elements which are positioned closer to the ...
Lukas Reinhold   +2 more
doaj   +1 more source

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