Results 51 to 60 of about 58,651 (340)

Comparison of Hybrid IMRT Plans for Breast Cancer Utilizing the Variable Ratio of 3DCRT and IMRT Components to Establish an Optimal Plan for Target Coverage with Sparing Lung and Heart [PDF]

open access: yesIranian Journal of Medical Physics
Introduction: Intensity Modulated radiation therapy (IMRT) and Volumetric modulated arc therapy VMAT  enhance PTV coverage, compliance, and homogeneity while minimizing heart and ipsilateral (IL) lung exposure.
SUBHAS HALDAR   +2 more
doaj   +1 more source

Evaluation of Patient Exposure After an Emergency Warm-Up of the CT X-Ray Tube [PDF]

open access: yesJournal of Biomedical & Clinical Research, 2020
A survey was performed to evaluate patient exposure after a procedure for the CT X-ray tube’s emergency warm-up, with the patient positioned on the table within the CT gantry.
Desislava Kostova-Lefterova   +5 more
doaj   +3 more sources

The invisible businessman: Nuclear physics, patenting practices,and trading activities in the 1930s [PDF]

open access: yes, 2006
In the 1930s the production of patents for the protection of intellectual rights became central to the research activities of Enrico Fermi and his group, consistently with a research policy emerging within the Italian Fascist Regime.
Cf   +15 more
core   +1 more source

Aging changes complexity of heart rate dynamics assessed by entropy and Lyapunov exponent analysis

open access: yesGeriatric Care, 2019
In recent years, many research groups are trying to quantify the physiological signals of an individual, proposing new models to assess the complex dynamics of biological control systems. Indeed, life coincides with the good handling of the structures in
Roberto Siciliano   +3 more
doaj   +1 more source

Radiation Dose Evaluation for Radiotherapy Workers at Unand Hospital Using Four-Element Thermoluminescence Dosimetry

open access: yesJurnal Ilmiah Pendidikan Fisika Al-Biruni, 2023
Radiotherapy is a non-surgery therapy that employs ionizing radiation like X-ray or even radiation to cure cancer as a curative activity. Radiation dose rate analysis is required for the person who worked on radiotherapy to strengthen safety precautions ...
Ramacos Fardela   +5 more
doaj   +1 more source

Characterization of Wedge Factors and Dose Distributions in Radiotherapy with Symmetric and Asymmetric Physical Wedged Beams of 6 MV Photon Beam [PDF]

open access: yesIranian Journal of Medical Physics, 2020
Introduction: Physical wedge by modify photon beam shape and intensity has been utilized in radiotherapy to obtain uniformly dose distribution in tumor site with reduced hot spots.
mansour zabihzadeh   +5 more
doaj   +1 more source

NRG Oncology Survey on Practice and Technology Use in SRT and SBRT Delivery

open access: yesFrontiers in Oncology, 2020
PurposeTo assess stereotactic radiotherapy (SRT)/stereotactic body radiotherapy (SBRT) practices by polling clinics participating in multi-institutional clinical trials.MethodsThe NRG Oncology Medical Physics Subcommittee distributed a survey consisting ...
Mikhail Chetvertkov   +12 more
doaj   +1 more source

Impact of Covid-19 Outbreak Pandemic on the Radiotherapy Practice: A Survey Study of Indian States

open access: yesAsian Pacific Journal of Cancer Care, 2021
Background & objectives: Immunocompromised cancer patients are venerable for the infection and so the professionals involved in radiotherapy too. The objective of this online survey was to assess the impact of Covid-19 on radiotherapy practices, safety ...
Vindhyavasini Prasad Pandey   +1 more
doaj   +1 more source

Judicial Review of Uncertain Risks in Scientific Research [PDF]

open access: yes, 2017
It is difficult to neutrally evaluate the risks posed by large-scale leading-edge science experiments. Traditional risk assessment is problematic in this context for multiple reasons. Also, such experiments can be insulated from challenge by manipulating
Johnson, Eric E.
core   +2 more sources

ACR Accreditation for Utah Valley Hospital’s Radiation Oncology Center

open access: yes, 2019
Becoming an accredited clinic through the American College of Radiology (ACR) and their Radiation Oncology Practice Accreditation (ROPA) program will provide third-party evaluation of patient care to ensure the best treatment possible for patients.
Manigold, Remy
core   +1 more source

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