Results 191 to 200 of about 1,961,473 (371)

Effects of 17α‐Ethinylestradiol on Development and Gonadal Differentiation in the Estuarine Mummichog, Fundulus heteroclitus

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT In fish, sex determination and gonadal development are controlled by various genetic and environmental factors. In this study, experiments were conducted on the estuarine mummichog (Fundulus heteroclitus) to investigate gonadal differentiation following exposure to the synthetic estrogen, 17α‐ethinylestradiol (EE2).
Ibrahim Chehade   +5 more
wiley   +1 more source

The core competencies in hospital medicine: Procedures 2025 update

open access: yesJournal of Hospital Medicine, EarlyView.
Abstract This article presents an updated framework from the Society of Hospital Medicine for individual learning objectives related to key procedures in hospital medicine. Building upon the 2017 framework, these objectives have been revised to reflect evolving clinical evidence, advancements, and shifts in hospital medicine practice patterns.
Satyen Nichani   +8 more
wiley   +1 more source

Malignant sarcoma of the pelvic bones

open access: yesCancer, 2011
M. Jawad, A. Haleem, S. Scully
semanticscholar   +1 more source

The Importance of Patient Positioning in Radiography When Utilising Automatic Exposure Control

open access: yesJournal of Medical Radiation Sciences, EarlyView.
This study highlights the impact of inaccurate patient positioning on dose and image quality when utilising the automatic exposure control (AEC) for radiographic examinations. While the AEC serves to optimise radiation dose to patients, the results here demonstrate that poor positioning can lead to significant dose implications for patients.
Adam Steward   +3 more
wiley   +1 more source

Magnetic Resonance Guided Radiation Therapy (MRgRT) Prostate Motion and Margins

open access: yesJournal of Medical Radiation Sciences, EarlyView.
This study evaluated intra‐fractional prostate motion during MR‐guided radiotherapy to determine appropriate PTV margins for prostate cancer. Analysis of 18 patients resulted in calculated margins of 3.2 mm (AP), 1.7 mm (LR), and 3.2 mm (SI), supporting the potential for margin reduction with MRgRT. ABSTRACT Introduction Systematic and random errors in
Sammi Peng   +7 more
wiley   +1 more source

Image Reject Patterns in Computed Radiography: Insights From a Ghanaian Radiology Department

open access: yesJournal of Medical Radiation Sciences, EarlyView.
This study examined image rejection patterns in a computed radiography system at a tertiary hospital in Ghana. An overall reject rate of 16.5% was observed, exceeding recommended thresholds, with anatomical cut‐off and positioning errors being the most common causes.
Bismark Ofori‐Manteaw   +1 more
wiley   +1 more source

Radiation Dose and Risk in the Radiological Investigation of Suspected Non‐Accidental Injury (NAI)

open access: yesJournal of Medical Radiation Sciences, EarlyView.
This study is a retrospective analysis of 362 skeletal surveys performed over a 5‐year period for children under 5 years of age for suspected non‐accidental injury. We present effective dose data and the associated risks of radiation exposure for initial and follow‐up examinations.
Tooba Zaidi, Rikki Nezich
wiley   +1 more source

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