Results 61 to 70 of about 25,468 (231)

Sarcoidosis pulmonar y cáncer de mama, a propósito de un caso [PDF]

open access: yesRevista SOCAMPAR, 2020
Las enfermedades pulmonares intersticiales difusas constituyen un grupo heterogéneo de entidades clinicopatológicas que tienen manifestaciones clínicas, radiológicas y espirométricas similares, afectando de forma difusa a la vía aérea inferior.
Gutiérrez González N   +6 more
doaj  

Coupled ocean-atmosphere dynamics of the 2017 extreme coastal El Niño. [PDF]

open access: yes, 2019
In March 2017, sea surface temperatures off Peru rose above 28 °C, causing torrential rains that affected the lives of millions of people. This coastal warming is highly unusual in that it took place with a weak La Niña state.
Peng, Qihua   +4 more
core   +3 more sources

Dose calibration of EPIDs for segmented IMRT dosimetry [PDF]

open access: yesJournal of Applied Clinical Medical Physics, 2014
The purpose of this study was to investigate the dose response of amorphous silicon (a‐Si) electronic portal imaging devices (EPIDs) under different acquisition settings for both open jaw defined fields and segmented intensity‐modulated radiation therapy (IMRT) fields. Four different EPIDs were used.
Deshpande, S   +4 more
openaire   +3 more sources

The power of ionic movements in plants

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2232-2240, March 2026.
Summary The movement of ion‐driven electrogenic events known as plant action potentials in the Venus flytrap Dionaea muscipula has first been recognized in Darwin's time. Besides electrophysiological techniques making use of current‐ and voltage‐recording electrodes, today an ever‐growing spectrum of tools has become available, that report online ...
Rainer Hedrich, Ines Kreuzer
wiley   +1 more source

Enfermedades intersticiales pulmonares relacionadas con el hábito tabáquico [PDF]

open access: yesRevista SOCAMPAR, 2019
El consumo de tabaco es uno de los principales factores de riesgo relacionados con la aparición de patología pulmonar. Las enfermedades comunmente relacionadas con el tabaquismo son el cáncer de pulmón y la enfermedad pulmonar obstructiva crónica (EPOC).
Ordóñez Dios IM   +5 more
doaj  

A simple method to back-project isocenter dose of radiotherapy treatments using EPID transit dosimetry

open access: yesBrazilian Journal of Radiation Sciences, 2017
The aim of this work was to implement a simple algorithm to evaluate isocenter dose in a phantom using the back-projected transmitted dose acquired using an Electronic Portal Imaging Device (EPID) available in a Varian Trilogy accelerator with two ...
Thiago Bernardino da Silveira   +2 more
doaj   +1 more source

Numerical 3D models used for an evaluation of software tools dedicated to an automatic quality control of EPID images [PDF]

open access: yes, 2008
4 pagesElectronic Portal Imaging Devices (EPID) are used for the assessment of the geometric accuracy1, 2 during the radiation therapy process. EPID is also used like a major detector to test performances of the linear accelerator used for the treatment.
Beaumont, Stéphane   +5 more
core   +1 more source

A Precision Microbiome Approach Using Sucrose for Selective Augmentation of Staphylococcus epidermidis Fermentation against Propionibacterium acnes. [PDF]

open access: yes, 2016
Acne dysbiosis happens when there is a microbial imbalance of the over-growth of Propionibacterium acnes (P. acnes) in the acne microbiome. In our previous study, we demonstrated that Staphylococcus epidermidis (S. epidermidis, a probiotic skin bacterium)
Gallo, Richard L   +6 more
core   +2 more sources

Was the evolution of faster stomata driven by increased gas exchange rates rather than increasing water use efficiency?

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2355-2371, March 2026.
Summary Following changes in light flux, photosynthesis (A) typically adjusts more quickly than stomatal conductance (gs), which is dependent on changes in stomatal aperture. Faster stomatal responses are proposed to reduce water loss and enhance growth in dynamic light environments. Stomatal opening and closing parameters were determined in a range of
Robert A. Brench   +4 more
wiley   +1 more source

Daily dosimetric quality control of the MM50 Racetrack Microtron using an electronic portal imaging device [PDF]

open access: yes, 1995
The MM50 Racetrack Microtron, suited for advanced three-dimensional conformal radiotherapy techniques, is a complex machine in various respects. Therefore, for a number of gantry angles, daily quality control of the absolute output and fluence profiles ...
Dirkx, M.L.P. (Maarten)
core   +2 more sources

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