Results 51 to 60 of about 936,741 (303)

Method and software for photon dose calculation in phantoms of human body

Радиационная гигиена, 2019
The current study is focused on the development of the method of the calculation of the dose quantities required for the assessment or limitation of the ionizing exposure (mean organ doses, effective dose, distribution of the absorbed dose in the ...
V. Yu. Golikov
doaj   +1 more source

Dose coefficient estimation for terrestrial Sphingonotus insects near nuclear facilities in Northwest China

Fushe yanjiu yu fushe gongyi xuebao, 2022
To study the representative dose coefficients near nuclear facilities in the arid regions of Northwest China, a simplified anatomical model of Sphingonotus insects using computed tomography (CT) scanning is proposed. In addition, a voxel model created by
GONG Wenjing, ZHANG Chao, ZHANG Sheng, WANG Huijuan, CAO Qiao, YUAN Han, LI Jianguo, HAN Baohua   +7 more
doaj   +1 more source

Patient-Specific Fetal Dose Determination for Multi-Target Gamma Knife Radiosurgery: Computational Model and Case Report. [PDF]

, 2017
A 42-year-old woman at 29 weeks gestation via in vitro fertilization who presented with eight metastatic brain lesions received Gamma Knife stereotactic radiosurgery (GKSRS) at our institution. In this study, we report our clinical experience and a ...
Braunstein, Steve, Ma, Lijun, McDermott, Michael, Paulsson, Anna K, Phillips, Justin, Sneed, Patricia K, Theodosopoulos, Philip V   +6 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Estimation of effective doses to whole-bodies and hands of facilitating staff from radioiodine-131 ablation therapy patients

The Egyptian Journal of Radiology and Nuclear Medicine
Background Workers in the field of radiation therapy are exposed to radiation hazards, and it is necessary to take precautions to limit the radiation dose to nursing staff and physicists.
Abdulrahman Mofreh Al-Esaei, Emran Eisa Saleh, Sharief El Maghraby, Tamer Mahmoud Elsayed, Amr Mohamed Ismail Kany   +4 more
doaj   +1 more source

Extending in aqua portal dosimetry with dose inhomogeneity conversion maps for accurate patient dose reconstruction in external beam radiotherapy

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: In aqua dosimetry with electronic portal imaging devices (EPIDs) allows for dosimetric treatment verification in external beam radiotherapy by comparing EPID-reconstructed dose distributions (EPID_IA) with dose distributions ...
Igor Olaciregui-Ruiz, Julia-Maria Osinga-Blaettermann, Karen Ortega-Marin, Ben Mijnheer, Anton Mans   +4 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Korean-specific dose coefficients for external environmental exposures: Soil contamination

Nuclear Engineering and Technology
In this study, we first produced the Korean-specific dose coefficients (DCs) for soil contamination using the Mesh-type Reference Korean Phantoms (MRKPs).
Ji Won Choi, Yumi Lee, Bangho Shin, Chansoo Choi, Yeon Soo Yeom   +4 more
doaj   +1 more source

Ultra-low dose external beam radiotherapy for presumed choroidal lymphoma: a case report

Journal of Ophthalmic Inflammation and Infection, 2022
Primary choroidal lymphoma is a rare, slowly progressive intraocular malignancy. Most are low grade B cell lymphomas, often involving tissues adjacent to the choroid such as the subconjunctival space, lacrimal gland or orbit.
Jeremy P. M. Flanagan, Michael Ng, Awet Z. Kibrom, Robin J. A. Filshie, Richard J. Stawell, Roderick F. O’Day   +5 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source