Results 61 to 70 of about 1,561,159 (250)

Intensity-modulated carbon-ion radiation therapy versus intensity-modulated photon-based radiation therapy in locally recurrent nasopharyngeal carcinoma: a dosimetric comparison

open access: yesCancer Management and Research, 2019
Lei Wang,1–3 Jiyi Hu,2,4 Xiaoli Liu,2,5 Weiwei Wang,2,5 Lin Kong,1,2 Jiade J Lu2,41Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201315, People’s Republic of China ...
Wang L   +5 more
doaj  

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Mathematical optimization in intensity modulated radiation therapy

open access: yes, 2010
The design of an intensity modulated radiotherapy treatment includes the selection of beam angles (geometry problem), the computation of an intensity map for each selected beam angle (intensity problem), and finding a sequence of configurations of a ...
Ehrgott, Matthias   +3 more
core   +4 more sources

Comparison of patient specific quality assurance tests done with using different dosimetric systems for intensity modulated radiotherapy treatment plans

open access: yesMedicine Science, 2019
Intensity modulated radiotherapy is the developed technique of 3 dimensional conformal radiation therapy. In this method, irradiated fields can be seperated into many subfields that are called segments.
Kamil Erkan Ozgen   +4 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Prospecting the protein design landscape

open access: yesFEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona   +4 more
wiley   +1 more source

Skin Dose Impact from Vacuum Immobilization Device and Carbon Fiber Couch in Intensity Modulated Radiation Therapy for Prostate Cancer

open access: yes, 2011
To investigate the unexpected skin dose increase from intensity-modulated radiation therapy (IMRT) on vacuum cushions and carbon-fiber couches and then to modify the dosimetric plan accordingly.
LEE, KUO-WEI;WU, JIAN-KUEN;JENG, SHIU-CHEN;HSUEH, LIU YEN-WAN;CHENG, JASON CHIA-HSIEN   +1 more
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Dosimetric comparison of different planning techniques in left-sided whole-breast irradiation: A planning study

open access: yesJournal of Medical Physics, 2020
Purpose: This planning study compared the various dosimetric parameters of different types of intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VMAT) techniques for left-sided breast cancer radiotherapy. Materials and Methods:
L Nithya   +4 more
doaj   +1 more source

Intensity-Modulated Radiotherapy in the Treatment of Pancreatic Adenocarcinoma – A Review [PDF]

open access: yes, 2013
Pancreatic cancer remains one of the leading causes of cancer deaths. Despite improvements in imaging, surgical techniques, chemotherapy agents, and radiation techniques, the prognosis for patients with pancreatic adenocarcinoma remains poor ...
Luciana Caravatta   +11 more
core  

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