Results 61 to 70 of about 4,636 (165)

Supercritical Fluid Chromatography for Expedited Sample Clean‐Up in Isotope Ratio Mass Spectrometry Including Cholesterol as New Endogenous Reference Compound

Drug Testing and Analysis, Volume 18, Issue 11, Page 1509-1522, November 2026.
Supercritical fluid chromatography was employed in the sample preparation for IRMS determinations in sports drug testing for the first time and the developed method was successfully validated. Cholesterol (CHOL) was introduced as a novel endogenous reference compound and population‐based Δ‐values were established as shown here.
Thomas Piper, Jana Drewes, Mario Thevis
wiley   +1 more source

A multi-faceted community intervention is associated with knowledge and standards of workplace mental health: the Superior Mental Wellness @ Work study

BMC Public Health, 2019
Background Poor psychosocial work environments, such as those with low psychological support and high demands, can be harmful to the mental health of workers.
Vicki L. Kristman, Jessica Lowey, Lynda Fraser, Susan Armstrong, Silva Sawula   +4 more
doaj   +1 more source

Deep learning for gamma map prediction in breast IMRT verification

Medical Physics, Volume 53, Issue 11, November 2026.
Abstract Background Patient‐specific quality assurance (PSQA) in radiotherapy commonly relies on global gamma passing rate (GPR) metrics, which summarize delivery agreement as a single scalar value and therefore provide limited information about the spatial location of dose delivery discrepancies.
Eva Ambroa, Pedro Gallego, Jaime Pérez‐Alija, Manuel de la Cruz, Oscar Pera, Jaume Quera, Enric Fernández‐Velilla, Martí Lacruz, Pablo Carrasco, Simone Balocco, Oliver Díaz   +10 more
wiley   +1 more source

Investigation of the mechanical performance of Siemens linacs components during arc: gantry, MLC, and electronic portal imaging device

Medical Devices: Evidence and Research, 2015
Pejman Rowshanfarzad,1 Peter Häring,2 Hans L Riis,3 Sune J Zimmermann,3 Martin A Ebert1,4 1School of Physics, The University of Western Australia, Crawley, WA, Australia; 2German Cancer Research Center (DKFZ), Medical Physics in Radiation Oncology ...
Rowshanfarzad P, Häring P, Riis HL, Zimmermann SJ, Ebert MA   +4 more
doaj  

Drought and salinity stress remodel Asian rice (Oryza sativa) leaf development through cell‐type‐specific regulatory programs

New Phytologist, Volume 252, Issue 4, Page 1376-1395, November 2026.
Osmotic stressors induce developmental and physiological changes in rice (Oryza sativa) seedlings, which are modulated by cell‐type‐specific gene expression and regulatory networks. We exposed plants to two levels of drought and salinity stress and measured the effects of these stressors on developing leaves by measuring physiological traits, ion ...
Sean M. Robertson, Obaid Maqsood, Chi Dang, Asher Pasha, Claudio Stasolla, Nicholas J. Provart, Olivia Wilkins   +6 more
wiley   +1 more source

Dose Characteristics of a Deep Learning Model for EPID-based In vivo Dosimetry

Journal of Medical Physics
Background: Images from onboard electronic portal imaging devices (EPID) contain dose information that can be converted into dose maps. A cycle-consistent generative adversarial network (CycleGAN)-based model was developed for two-dimensional (2D) EPID ...
Qilin Li, Dingshu Tian, Guangyao Sun, Wendong Gu, Jieqiong Jiang   +4 more
doaj   +1 more source

TurboID‐based proteomic profiling reveals proxitome of the IRT1 metal transporter and new insight into IRT1 endocytosis

New Phytologist, Volume 252, Issue 4, Page 1545-1564, November 2026.
Identification of new regulators of Arabidopsis IRT1 endocytosis and metal transport using TurboID. TurboID proximity labeling of the Arabidopsis IRT1 root metal transporter identified new IRT1‐interacting proteins upon different metal regimes. Among validated candidates, the endosome‐localized NHX5 Na+ (K+)/H+ antiporter and the plasma membrane ...
Liza Pellegrin, Steven Fanara, Bertrand Fabre, Carole Pichereaux, Nathalie Leonhardt, Valérie Cotelle, Grégory Vert, Julie Neveu   +7 more
wiley   +1 more source

Development of a new VMAT QA framework for Mobius3D using control-point specific EPID images

Frontiers in Oncology
PurposeThis study presents novel quality assurance (QA) approach for volumetric modulated arc therapy (VMAT) that leverages frame-by-frame electronic portal imaging device (EPID) images integrated into Mobius3D for accurate three-dimensional dose ...
JaeHyun Seok, JaeHyun Seok, JaeHyun Seok, Hojin Kim, Min Cheol Han, Jihun Kim, Kwangwoo Park, Hyeonjeong Cho, Hyeonjeong Cho, Hyeonjeong Cho, Dohyeon Yoo, Jin Sung Kim, Jin Sung Kim, Jin Sung Kim   +13 more
doaj   +1 more source

Automatic single‐isocenter multiple‐target cranial stereotactic treatment plan optimization via planning system scripting

Journal of Applied Clinical Medical Physics, Volume 27, Issue 10, October 2026.
Abstract Background Single‐isocenter multiple‐target stereotactic radiation treatments delivered on C‐arm linear accelerators are increasingly common due to practical advantages in both accessibility and speed compared to multiple isocenter treatments.
Kurtis H. Dekker, Jennifer A. Everaars
wiley   +1 more source

Research on Position Verification of Multi-Leaf Collimator (MLC) and Dose Verification Based on Electronic Portal Imaging Device

Zhongguo yiliao qixie zazhi
ObjectiveA quality control (QC) system based on the electronic portal imaging device (EPID) system was used to realize the Multi-Leaf Collimator (MLC) position verification and dose verification functions on Primus and VenusX accelerators.
Jianfeng SUI, Jiawei SUN, Kai XIE, Liugang GAO, Tao LIN, Xinye NI   +5 more
doaj   +1 more source