Technical Note: Display window setting: An important factor for detecting subtle but clinically relevant artifacts in daily CT quality control

2016 ◽  
Vol 43 (12) ◽  
pp. 6413-6417 ◽  
Author(s):  
Zaiyang Long ◽  
Michael R. Bruesewitz ◽  
Emily N. Sheedy ◽  
Michele A. Powell ◽  
Jacqualynn C. Kramer ◽  
...  
2017 ◽  
Vol 44 (5) ◽  
pp. 1638-1645 ◽  
Author(s):  
Albert Hirtl ◽  
Helmar Bergmann ◽  
Barbara Knäusl ◽  
Thomas Beyer ◽  
Michael Figl ◽  
...  

2003 ◽  
Vol 3 (2) ◽  
pp. 105-108
Author(s):  
K. Cooke ◽  
L. Askew ◽  
D. Howson ◽  
S. Collins

This technical note describes a port film graticule that can be used to determine the central axis of a portal image when used with megavoltage film or on-line electronic portal imaging. The construction and quality control of the portal film graticule are highlighted.


2017 ◽  
Vol 44 (10) ◽  
pp. 5070-5074 ◽  
Author(s):  
Mohsen Najafi ◽  
Javad Teimouri ◽  
Alireza Shirazi ◽  
Ghazale Geraily ◽  
Mahbod Esfahani ◽  
...  

2014 ◽  
Vol 7 (3) ◽  
pp. 227-229 ◽  
Author(s):  
Antônio César da Silva Santana ◽  
Catarina Zita Dantas de Araujo ◽  
José Rocha Prudente de Novaes ◽  
Maria da Glória Mendes dos Santos ◽  
Waltemir Souza Santana

O mosquito Aedes (Stegomyia) albopictus (Skuse), vetor de várias arboviroses, foi registrado pela primeira vez no estado de Sergipe, Brasil, no município de Areia Branca, localizado no centro-leste, nas coordenadas 10°45'29”S e 37°18'45”W e a 36 km da capital Aracaju. A primeira larva de Ae. albopictus foi coletada na 32ª semana epidemiológica de 2011, no Povoado Terra Preta de Cima durante as atividades de Controle de Qualidade do Programa de Controle da Febre Amarela e da Dengue (PCFAD). Mais tarde, na 50ª semana epidemiológica de 2012, foi encontrada mais uma larva de Ae. albopictus, desta vez no Povoado Manilha de Baixo. Em seguida, no Povoado Garangau (10º44'55”S e 37º29'40”W) a 28 km da sede do município de Campo do Brito foram capturadas três larvas e duas pupas de Ae. albopictus durante revisão semanal de amostras do PCFAD, ou seja, na 47ª semana epidemiológica de 2012. Dessa forma, procuramos mostrar a importância do Controle de Qualidade para os Programas de Controle de Endemias nos estados e no Brasil, visando à efetivação de providências rápidas e eficientes para a prevenção e o controle de doenças veiculadas por mosquitos. First Occurrence of Aedes (Stegomyia) albopictus in the State of Sergipe, Brazil Abstract. The mosquito Aedes (Stegomyia) albopictus (Skuse), a vector for several arboviral diseases, was recorded for the first time in the state of Sergipe, Brazil, in the municipality of Areia Branca, located in the central-eastern part of the state at the coordinates 10°45'29"S and 37°18'45"W and 36 km from the state capital, Aracaju. The first larva of Ae. albopictus was collected in the 32nd epidemiological week of 2011, in the settlement of Terra Preta de Cima and was identified systematically in the Central Public Health Laboratory (LACEN-SE) during quality control activities within the yellow fever and dengue control program (PCFAD). In the 50th epidemiological week of 2012, another larva of Ae. albopictus was found, this time in the settlement of Manilha de Baixo. In the neighboring municipality of Campo do Brito, three larvae and two pupae of Ae. Albopictus were found in the settlement of Garangau (10º44'55"S and 37º29'40"W), 28 km from the main center of the municipality. As in the abovementioned records, systematic identification was only made at a late stage, given that the samples from the 47th epidemiological week of 2012 arrived at LACEN/SE in January, 2013. This technical note serves alert public health managers to the importance of quality control for endemic disease control programs, with the aim of effecting rapid and efficient control and prevention measures for mosquito-borne diseases.


2015 ◽  
Vol 37 (3) ◽  
Author(s):  
Cinthia Da Costa Berwanger ◽  
Noeli Júlia Schüssler De Vasconcellos ◽  
Sandra Cadore Peixoto ◽  
Alexandre Swarowsky ◽  
Rodrigo Fernando Dos Santos Salazar

2021 ◽  
Author(s):  
Candice Hall ◽  
Robert Jensen

This Coastal and Hydraulics Engineering Technical Note (CHETN) guides users through the quality control (QC) and processing steps that are necessary when using archived U.S. National Oceanic and Atmospheric Administration (NOAA) National Data Buoy Center (NDBC) wave and meteorological data. This CHETN summarizes methodologies to geographically clean and QC NDBC measurement data for use by the U.S. Army Corps of Engineers (USACE) user community.


2019 ◽  
Author(s):  
Elisabeth K. Larsen ◽  
Jose Luis Palau ◽  
Jose Antonio Valiente ◽  
Esteban Chirino ◽  
Juan Bellot

Abstract. Whole-plant transpiration is a crucial component in the hydrological cycle and a key parameter in many disciplines like agriculture, forestry and ecology. Sap flow measurements are one of the most widely used methods to estimate whole-plant transpiration in woody species due to its wide application range and its ready automation for continuous data readings. Several different methods have been developed and adjusted to different climatic conditions and wood properties. However, the scientific literature also identifies several sources of error in the method that needs to be accounted for; misalignment of the probes, wound to the xylem, thermal diffusivity and stem water content. This study aims to integrate probe misalignment as a function of time to improve readings during long-term measurements (> 3 months). We conclude that even when geometrical misalignments errors are small, the introduced corrections can imply an important shift in sap flow estimations. Additionally, we propose a new set of statistical information to be recorded during the measurement period to use as a quality control of the heat ratio readings obtained from the sensors. By using relative standard deviation and slope as quality indicators we concluded that no general time limit can be decided for all sensors but should rather be determined from individual performance over time.


2020 ◽  
Author(s):  
Amir Reza Sadri ◽  
Andrew Janowczyk ◽  
Ren Zhou ◽  
Ruchika Verma ◽  
Niha Beig ◽  
...  

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