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https://www.readbyqxmd.com/read/27557913/qualitative-and-quantitative-effect-of-a-protective-chlorhexidine-varnish-layer-over-resin-infiltrated-proximal-carious-lesions-in-primary-teeth
#1
Pritika Rai, R K Pandey, Richa Khanna
PURPOSE: The purpose of this study was to assess the progression of noncavitated initial proximal carious lesions in primary teeth, infiltrated with low viscosity resins, both with and without an overlying layer of chlorhexidine varnish. METHODS: Forty-five children, with at least two white spot lesions on the proximal surfaces of primary molars, were assessed. The clinical procedure of resin infiltration (DMG, ICON) was similar in both groups. In the test group, after infiltration a double layer of chlorhexidine varnish (Cervitec Plus) was coated on the surface...
2016: Pediatric Dentistry
https://www.readbyqxmd.com/read/26261449/a-fast-gnu-method-to-draw-accurate-scientific-illustrations-for-taxonomy
#2
Giuseppe Montesanto
Nowadays only digital figures are accepted by the most important journals of taxonomy. These may be produced by scanning conventional drawings, made with high precision technical ink-pens, which normally use capillary cartridge and various line widths. Digital drawing techniques that use vector graphics, have already been described in literature to support scientists in drawing figures and plates for scientific illustrations; these techniques use many different software and hardware devices. The present work gives step-by-step instructions on how to make accurate line drawings with a new procedure that uses bitmap graphics with the GNU Image Manipulation Program (GIMP)...
2015: ZooKeys
https://www.readbyqxmd.com/read/25996917/robust-and-reproducible-quantification-of-the-extent-of-chest-radiographic-abnormalities-and-it-s-free
#3
Ana Requena-Méndez, Edelweiss Aldasoro, Jose Muñoz, David A J Moore
RATIONALE: Objective, reproducible quantification of the extent of abnormalities seen on a chest radiograph would improve the user-friendliness of a previously proposed severity scoring system for pulmonary tuberculosis and could be helpful in monitoring response to therapy, including in clinical trials. METHODS: In this study we report the development and evaluation of a simple tool using free image editing software (GIMP) to accurately and reproducibly quantify the area of affected lung on the chest radiograph of tuberculosis patients...
2015: PloS One
https://www.readbyqxmd.com/read/25911427/polydimethylsiloxane-composites-containing-1-2-naphtoquinone-4-sulphonate-as-unique-dispositive-for-estimation-of-casein-in-effluents-from-dairy-industries
#4
M Muñoz-Ortuño, A Argente-García, Y Moliner-Martínez, C Molins-Legua, P Campíns-Falcó
A unique dispositive to determine casein which is the most abundant protein in dairy sewages has been proposed. In this sensing technology, the derivatization reagent 1,2-naphtoquininone 4-sulphonate (NQS) is embedded into a polydimethylsiloxane-tetraethylortosilicate-SiO2 nanoparticles composite (PDMS-TEOS-SiO2NPs). When the composite is immersed into the samples, casein is extracted from the solution and derivatized inside the PDMS matrix after 10 min at 100°C. The sensing support changes its color from yellow to orange depending on the casein concentration...
May 11, 2015: Analytica Chimica Acta
https://www.readbyqxmd.com/read/25782779/-implementation-of-a-new-emergency-room-protocol-at-a-university-medical-center-in-germany-basis-for-improved-flow-of-information-adequate-quality-management-and-scientific-assessment
#5
D Ross, J Hinz, A Mansur, F Mielck, M Roessler, M Quintel, M Bauer
BACKGROUND: After analyzing the existing documentation protocol for the emergency room (ER), the department of anesthesiology of the Medical University of Göttingen (UMG) developed a new department-specific ER protocol. AIM: The objective was to improve the flow of patient information from the preclinical situation through the emergency room to the early inpatient period. With this in mind a new emergency protocol was developed that encompasses the very heterogeneic patient collective in the ER as well as forming a basis for quality management and scientific investigation, taking user friendliness and efficiency into consideration...
March 2015: Der Anaesthesist
https://www.readbyqxmd.com/read/25490926/measuring-the-pain-area-an-intra-and-inter-rater-reliability-study-using-image-analysis-software
#6
Felipe Jose Jandre Dos Reis, Veronica de Barros E Silva, Raphaela Nunes de Lucena, Bruno Alexandre Mendes Cardoso, Leandro Calazans Nogueira
Pain drawings have frequently been used for clinical information and research. The aim of this study was to investigate intra- and inter-rater reliability of area measurements performed on pain drawings. Our secondary objective was to verify the reliability when using computers with different screen sizes, both with and without mouse hardware. Pain drawings were completed by patients with chronic neck pain or neck-shoulder-arm pain. Four independent examiners participated in the study. Examiners A and B used the same computer with a 16-inch screen and wired mouse hardware...
January 2016: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/25282078/a-paper-strip-based-non-invasive-glucose-biosensor-for-salivary-analysis
#7
Anuradha Soni, Sandeep Kumar Jha
In our present study, we developed an optical biosensor for direct determination of salivary glucose by using immobilized glucose oxidase enzyme on filter paper strip (specific activity 1.4 U/strip) and then reacting it with synthetic glucose samples in presence of co-immobilized color pH indicator. The filter paper changed color based on concentration of glucose in reaction media and hence, by scanning this color change (using RGB profiling) through an office scanner and open source image processing software (GIMP) the concentration of glucose in the reaction medium could be deduced...
May 15, 2015: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/25267940/digital-image-analysis-for-detchip-%C3%A2-code-determination
#8
Marcus Lyon, Mark V Wilson, Kerry A Rouhier, David J Symonsbergen, Kiran Bastola, Ishwor Thapa, Andrea E Holmes, Sharmin M Sikich, Abby Jackson
DETECHIP(®) is a molecular sensing array used for identification of a large variety of substances. Previous methodology for the analysis of DETECHIP(®) used human vision to distinguish color changes induced by the presence of the analyte of interest. This paper describes several analysis techniques using digital images of DETECHIP(®). Both a digital camera and flatbed desktop photo scanner were used to obtain Jpeg images. Color information within these digital images was obtained through the measurement of red-green-blue (RGB) values using software such as GIMP, Photoshop and ImageJ...
August 2012: Signal and Image Processing: An International Journal
https://www.readbyqxmd.com/read/24438468/the-association-between-pain-diagram-area-fear-avoidance-beliefs-and-pain-catastrophising
#9
Bruce F Walker, Christine D Losco, Anthony Armson, Amanda Meyer, Norman J Stomski
BACKGROUND: The development of clinical practice guidelines for managing spinal pain have been informed by a biopsychosocial framework which acknowledges that pain arises from a combination of psychosocial and biomechanical factors. There is an extensive body of evidence that has associated various psychosocial factors with an increased risk of experiencing persistent pain. Clinicians require instruments that are brief, easy to administer and score, and capable of validly identifying psychosocial factors...
2014: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/24311058/the-scene-and-the-unseen-manipulating-photographs-for-experiments-on-change-blindness-and-scene-memory-image-manipulation-for-change-blindness
#10
Felix Ball, Anne Elzemann, Niko A Busch
The change blindness paradigm, in which participants often fail to notice substantial changes in a scene, is a popular tool for studying scene perception, visual memory, and the link between awareness and attention. Some of the most striking and popular examples of change blindness have been demonstrated with digital photographs of natural scenes; in most studies, however, much simpler displays, such as abstract stimuli or "free-floating" objects, are typically used. Although simple displays have undeniable advantages, natural scenes remain a very useful and attractive stimulus for change blindness research...
September 2014: Behavior Research Methods
https://www.readbyqxmd.com/read/23509946/-il-flauto-magico-still-works-mozart-s-secret-of-ventilation
#11
Klaus Laczika, Oliver P Graber, Gerhard Tucek, Alfred Lohninger, Nikolaus Fliri, Gertraud Berka-Schmid, Eva K Masel, Christoph C Zielinski
BACKGROUND: Synchronisation/coupling between respiratory patterns and musical structure. METHODS: Healthy professional musicians and members of the audience were studied during a performance of W.A. Mozart's Piano Concerto KV 449. Electrocardiogram (ECG)/Heart Rate Variability (HRV) data recording (Schiller: Medilog®AR12, ECG-channels: 3, sampling rate: 4096 Hz, 16 Bit) was carried out and a simultaneous synchronized high definition video/audio recording was made...
2013: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/23457131/anatomical-variability-of-median-nerve-formation-in-human-foetuses-in-clinical-aspect
#12
Jowita Woźniak, Alicja Kędzia, Krzysztof Dudek
BACKGROUND: The median nerve is an important nerve leaving the brachial plexus. Median nerve damages may result from tunnel syndromes or injuries. The nerve anatomical variants are of great clinical importance in hand surgery. OBJECTIVES: Clinical evaluation of median nerve divergence from brachial plexus morphological variability in foetal period. MATERIAL AND METHODS: The material consisted of 220 brachial plexus sections derived from 110 foetuses aged 14-32 weeks of foetal life (50 females and 60 males, in CRL: 80-233 mm)...
November 2012: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/22945314/brachial-plexus-variations-during-the-fetal-period
#13
Jowita Woźniak, Alicja Kędzia, Krzysztof Dudek
The brachial plexus is an important nervous system structure. It can be injured during the perinatal period and by postnatal damage. The goal of this study was to assess human fetal brachial plexus variability. A total of 220 brachial plexuses were surgically prepared from 110 human fetuses aged 14-32 weeks of fetal life (50 females and 60 males) ranging in CRL from 80 to 233 mm. The study incorporated the following methods: dissectional and anthropological, digital image acquisition, digital image processing using Image J and GIMP software, and statistical methods (Statistica 9...
December 2012: Anatomical Science International
https://www.readbyqxmd.com/read/22659541/upregulation-of-the-vascular-endothelial-growth-factor-flt-1-in-rat-hippocampal-neurons-after-envenoming-by-phoneutria-nigriventer-age-related-modulation
#14
Monique Culturato Padilha Mendonça, Edilene Siqueira Soares, Leila Miguel Stávale, Silvia Pierre Irazusta, Maria Alice da Cruz-Höfling
This study characterizes the distribution and quantifies the expression of the tyrosine kinase receptor for the vascular endothelial growth factor (VEGF), Flt-1, in the rat hippocampus following intra-peritoneal injection of Phoneutria nigriventer venom (PNV). Post-natal day 14 (P14) and 8-10 weeks (adult) old rats were used and analyses were done at 1, 2, 5 and 24 h after venom exposure and compared with saline-injected counterparts. PNV-injected animals showed hippocampal venules with perivascular edema indicating blood-brain barrier (BBB) dysfunction...
September 15, 2012: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/21950542/evaluation-of-three-methods-for-retrospective-correction-of-vignetting-on-medical-microscopy-images-utilizing-two-open-source-software-tools
#15
Georgios Babaloukas, Nicholas Tentolouris, Stavros Liatis, Alexandra Sklavounou, Despoina Perrea
Correction of vignetting on images obtained by a digital camera mounted on a microscope is essential before applying image analysis. The aim of this study is to evaluate three methods for retrospective correction of vignetting on medical microscopy images and compare them with a prospective correction method. One digital image from four different tissues was used and a vignetting effect was applied on each of these images. The resulted vignetted image was replicated four times and in each replica a different method for vignetting correction was applied with fiji and gimp software tools...
December 2011: Journal of Microscopy
https://www.readbyqxmd.com/read/21898664/a-new-algorithm-to-reduce-noise-in-microscopy-images-implemented-with-a-simple-program-in-python
#16
Alessio Papini
All microscopical images contain noise, increasing when (e.g., transmission electron microscope or light microscope) approaching the resolution limit. Many methods are available to reduce noise. One of the most commonly used is image averaging. We propose here to use the mode of pixel values. Simple Python programs process a given number of images, recorded consecutively from the same subject. The programs calculate the mode of the pixel values in a given position (a, b). The result is a new image containing in (a, b) the mode of the values...
March 2012: Microscopy Research and Technique
https://www.readbyqxmd.com/read/21854630/virtual-environment-to-quantify-the-influence-of-colour-stimuli-on-the-performance-of-tasks-requiring-attention
#17
Alessandro P Silva, Annie F Frère
BACKGROUND: Recent studies indicate that the blue-yellow colour discrimination is impaired in ADHD individuals. However, the relationship between colour and performance has not been investigated. This paper describes the development and the testing of a virtual environment that is capable to quantify the influence of red-green versus blue-yellow colour stimuli on the performance of people in a fun and interactive way, being appropriate for the target audience. METHODS: An interactive computer game based on virtual reality was developed to evaluate the performance of the players...
2011: Biomedical Engineering Online
https://www.readbyqxmd.com/read/21704882/ocular-symptoms-in-nonspecific-conjunctival-hyperreactivity
#18
Elizabeth Maria Mercer Mourão, Nelson Augusto Rosário, Luciano Silva, Silvia Emiko Shimakura
BACKGROUND: Ocular symptoms can be triggered by nonspecific environmental factors, characterizing conjunctival hyperreactivity (CHR). OBJECTIVE: To examine CHR in subjects with ocular symptoms by means of a hyperosmolar conjunctival provocation test (HCPT). METHODS: Sixty-three subjects with ocular complaints (itching, redness, or tearing) were tested for allergy to a common panel of inhalant allergens (Alk Abelló-FDA Allergenic, Brazil)...
July 2011: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/21572507/global-manipulation-of-digital-images-can-lead-to-variation-in-cytological-diagnosis
#19
H Prasad, Sangeeta Wanjari, Rajkumar Parwani
BACKGROUND: With the adoption of a completely electronic workflow by several journals and the advent of telepathology, digital imaging has become an integral part of every scientific research. However, manipulating digital images is very easy, and it can lead to misinterpretations. AIM: To analyse the impact of manipulating digital images on their diagnosis. DESIGN: Digital images were obtained from Papanicolaou-stained smears of dysplastic and normal oral epithelium...
2011: Journal of Pathology Informatics
https://www.readbyqxmd.com/read/21370028/imaging-techniques-in-signal-transduction-ihc
#20
Jerry Sedgewick
Augmentation of digital images is almost always a necessity in order to obtain a reproduction that matches the appearance of the original. However, that augmentation can mislead if it is done incorrectly and not within reasonable limits. When procedures are in place for ensuring that originals are archived, and image manipulation steps are reported, scientists not only follow good laboratory practices, but also avoid ethical issues associated with postprocessing and protect their labs from any future allegations of scientific misconduct...
2011: Methods in Molecular Biology
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