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https://www.readbyqxmd.com/read/28717154/thermal-diffusivity-mapping-of-graphene-based-polymer-nanocomposites
#1
Matthieu Gresil, Zixin Wang, Quentin-Arthur Poutrel, Constantinos Soutis
Nanoparticle dispersion is widely recognised as a challenge in polymer nanocomposites fabrication. The dispersion quality can affect the physical and thermomechanical properties of the material system. Qualitative transmission electronic microscopy, often cumbersome, remains as the 'gold standard' for dispersion characterisation. However, quantifying dispersion at macroscopic level remains a difficult task. This paper presents a quantitative dispersion characterisation method using non-contact infrared thermography mapping that measures the thermal diffusivity (α) of the graphene nanocomposite and relates α to a dispersion index...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28714186/the-pinocchio-effect-and-the-cold-stress-test-lies-and-thermography
#2
A Moliné, G Gálvez-García, J Fernández-Gómez, J De la Fuente, O Iborra, F Tornay, J L Mata Martín, M Puertollano, E Gómez Milán
We applied the use of thermography to cognitive neuropsychology, particularly as an objective marker of subjective experiences, in the context of lying. We conducted three experiments: (a) An important lie was invented by the participants in 3 min, and it was recounted by phone to a significant person while they were recorded by the thermographic camera, obtaining a face and hands map of the lie. (b) A similar methodology was carried out, but adding the Cold Stress Test (CST) of the dominant hand during the phone call, obtaining a second physiologic marker (the percentage of thermal recovery) to detect the lie...
July 17, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28702445/effect-of-a-professional-soccer-match-in-skin-temperature-of-the-lower-limbs-a-case-study
#3
Alex de Andrade Fernandes, Eduardo Mendonça Pimenta, Danilo Gomes Moreira, Manuel Sillero-Quintana, João Carlos Bouzas Marins, Rodrigo Figueiredo Morandi, Tane Kanope, Emerson Silami Garcia
The purpose of this study is to analyze the relationship between lower limbs skin temperature (Tsk) recorded by infrared thermography and creatine kinase (CK) response following an official soccer game. A professional soccer player, from the first division Brazilian League, defender, 27 years and 183 cm of height was analyzed. Measures of Tsk with a thermal camera and blood CK concentrations were obtained 24 hr before (24H-PRE), 24 (24H-POST) and 48 hr (48H-POST) after an official match. The results showed that CK values were 193 U/L 24 hr before, rising to 1,083 U/L 24 hr after the game and 414 U/L 48 hr after the game...
June 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28665378/-the-application-of-general-magnetic-therapy-for-the-rehabilitation-of-the-patients-following-the-surgical-treatment-of-herniated-intervertebral-discs
#4
D D Voronina, A G Kulikov, I A Luppova, O V Yarustovskaya
AIM: The objective of the present work was to rehabilitate more efficiently the patients who had undergone the surgical treatment for herniated discs in the lumbosacral spine by applying general magnetic therapy during the combined treatment. MATERIAL AND METHODS: A total of 73 patients underwent the medical examination and treatment. The patients matched for age and sex presenting with similar clinical symptoms were divided into two groups. All of them received initial therapy that included medication, therapeutic physical exercises, and aquatic therapy...
2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/28659532/water-masses-surface-temperatures-assessment-and-their-effect-on-surrounding-environment
#5
Cristina S C Calheiros, Eva Barreira, Nuno M M Ramos, Paula M L Castro
The aim of this study was to evaluate the effect of water masses on the surface temperature with direct impact on the surrounding area. Three systems were used for the study: a fully vegetated system (subsurface flow constructed wetland (CW)), a lake with no vegetation and a lake partially vegetated with Lemna minor. Infrared thermography was applied for the different systems analysis, allowing the determination of the surface temperature spatial distribution. In general, the presence of plants and water in the analyzed systems contributed to lowering the surface temperatures when comparing to its surroundings...
June 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28650235/evaluation-of-infrared-thermography-as-a-diagnostic-tool-to-predict-heat-stress-events-in-feedlot-cattle
#6
Ellen M Unruh, Miles E Theurer, Brad J White, Robert L Larson, James S Drouillard, Nora Schrag
OBJECTIVE To determine whether infrared thermographic images obtained the morning after overnight heat abatement could be used as the basis for diagnostic algorithms to predict subsequent heat stress events in feedlot cattle exposed to high ambient temperatures. ANIMALS 60 crossbred beef heifers (mean ± SD body weight, 385.8 ± 20.3 kg). PROCEDURES Calves were housed in groups of 20 in 3 pens without any shade. During the 6 am and 3 pm hours on each of 10 days during a 14-day period when the daily ambient temperature was forecasted to be > 29...
July 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28640156/the-impact-of-fiera-a-women-s-personal-care-device-on-genital-engorgement-as-measured-by-thermography-a-proof-of-principle-study
#7
Irwin Goldstein, Sue Goldstein, Leah Millheiser
OBJECTIVE: To determine the degree of vasoengorgement of the external genitalia caused by Fiera, a personal care device developed specifically to increase sexual arousal and interest. Time to onset of self-reported genital sexual arousal and development of responsive sexual desire were also measured. METHODS: This nonblinded, prospective cohort, single-site study was conducted in women without sexual dysfunction between the ages of 18 and 70. Each participant underwent a single-visit procedure that established a baseline temperature of the external genitalia, followed by 15 minutes of Fiera use...
June 19, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28630365/hot-bodies-cold-war-the-forgotten-history-of-breast-thermography
#8
(no author information available yet)
No abstract text is available yet for this article.
June 19, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28619291/body-mass-modulates-huddling-dynamics-and-body-temperature-profiles-in-rabbit-pups
#9
Amando Bautista, José Alfredo Zepeda, Verónica Reyes-Meza, Christophe Féron, Heiko G Rödel, Robyn Hudson
Altricial mammals typically lack the physiological capacity to thermoregulate independently during the early postnatal period, and in litter-bearing species the young benefit strongly from huddling together with their litter siblings. Such litter huddles are highly dynamic systems, often characterized by competition for energetically favorable, central positions. In the present study, carried out in domestic rabbits Oryctolagus cuniculus, we asked whether individual differences in body mass affect changes in body temperature during changes in the position within the huddle...
June 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28615086/the-automated-analysis-of-clustering-behaviour-of-piglets-from-thermal-images-in-response-to-immune-challenge-by-vaccination
#10
N J Cook, C J Bench, T Liu, B Chabot, A L Schaefer
An automated method of estimating the spatial distribution of piglets within a pen was used to assess huddling behaviour under normal conditions and during a febrile response to vaccination. The automated method was compared with a manual assessment of clustering activity. Huddling behaviour was partly related to environmental conditions and clock time such that more huddling occurred during the night and at lower ambient air temperatures. There were no positive relationships between maximum pig temperatures and environmental conditions, suggesting that the narrow range of air temperatures in this study was not a significant factor for pig temperature...
June 15, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28609182/infrared-thermography-reveals-effect-of-working-posture-on-skin-temperature-in-office-workers
#11
Roope Lasanen, Markus K H Malo, Olavi Airaksinen, Jari Karhu, Juha Töyräs, Petro Julkunen
INTRODUCTION: Musculoskeletal symptoms related to using traditional computer workstations are common. To improve ergonomics of workstations quantitative methods for measuring muscle stress and strain are needed. We hypothesize that infrared thermography (IRT) is suited for this purpose. METHODS: This hypothesis was evaluated by estimating muscle activity in upright and traditional working postures with IRT and surface electromyography (sEMG). IRT and sEMG measurements were conducted in 14 female participants with both working postures...
June 13, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28604356/ocular-surface-temperature-in-patients-with-evaporative-and-aqueous-deficient-dry-eyes-a-thermographic-approach
#12
Sara Matteoli, Eleonora Favuzza, Lucrezia Mazzantini, Pasquale Aragona, Stefania Cappelli, Andrea Corvi, Rita Mencucci
In recent decades infrared thermography (IR) has allowed accurate and quantitative measurements of the ocular surface temperature (OST), applying a non-invasive procedure. The objective of this work was to develop a procedure based on IR, which allows characterizing the cooling of the ocular surface of patients suffering from dry eye syndrome, and distinguishing among patients suffering from aqueous deficient dry eye (ADDE) and evaporative dry eyes (EDE). Approach: All patients examined (34F/4M, 23-84 years) were divided into two groups according to their Schirmer I result (≤7 mm for ADDE and >7 mm for EDE), and the OST was recorded for 7 s at 30Hz...
June 12, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28579739/quantitative-study-of-thermal-disturbances-due-to-nonuniformly-perfused-tumors-in-peripheral-regions-of-women-s-breast
#13
Akshara Makrariya, Neeru Adlakha
BACKGROUND: Mathematical modeling of biothermal processes is widely used to enhance the quantitative understanding of thermoregulation system of human body organs. This quantitative knowledge of thermal information of various human body organs can be used for developing clinical applications. In the past, investigators have studied thermal distribution in hemisphere-shaped human breast in the presence of sphere-shaped tumor. The shape and size of the breast as well as tumor may also affect thermal distribution which can have serious implications in thermography...
2017: Cancer Informatics
https://www.readbyqxmd.com/read/28572814/use-of-blue-green-fluorescence-and-thermal-imaging-in-the-early-detection-of-sunflower-infection-by-the-root-parasitic-weed-orobanche-cumana-wallr
#14
Carmen M Ortiz-Bustos, María L Pérez-Bueno, Matilde Barón, Leire Molinero-Ruiz
Although the impact of Orobanche cumana Wallr. on sunflower (Helianthus annuus L.) becomes evident with emergence of broomrape shoots aboveground, infection occurs early after sowing, the host physiology being altered during underground parasite stages. Genetic resistance is the most effective control method and one of the main goals of sunflower breeding programmes. Blue-green fluorescence (BGF) and thermal imaging allow non-destructive monitoring of plant diseases, since they are sensitive to physiological disorders in plants...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28570528/subsurface-defect-localization-by-structured-heating-using-laser-projected-photothermal-thermography
#15
Erik Thiel, Mathias Ziegler
The presented method is used to locate subsurface defects oriented perpendicularly to the surface. To achieve this, we create destructively interfering thermal wave fields that are disturbed by the defect. This effect is measured and used to locate the defect. We form the destructively interfering wave fields by using a modified projector. The original light engine of the projector is replaced with a fiber-coupled high-power diode laser. Its beam is shaped and aligned to the projector's spatial light modulator and optimized for optimal optical throughput and homogeneous projection by first characterizing the beam profile, and, second, correcting it mechanically and numerically...
May 15, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28562767/infrared-thermography-to-diagnose-and-manage-venomous-animal-bites-and-stings
#16
Carlos Roberto de Medeiros, Marcos Leal Brioschi, Solange Nogueira de Souza, Manoel Jacobsen Teixeira
INTRODUCTION: Infrared imaging (IR) is a noninvasive technique that quantifies body surface temperature, producing a digital color image. IR has been used to study diseases in which skin temperature can reflect the presence of inflammation. METHODS: This was an observational pilot study of eight patients envenomed by snakes, spiders, and scorpions. All patients were examined using a thermal camera. RESULTS: In all cases, we obtained infrared images that corroborated clinical findings indicating localized effects of venom, specifically inflammation...
March 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28560116/infrared-thermography-applied-to-lower-limb-muscles-in-elite-soccer-players-with-functional-ankle-equinus-and-non-equinus-condition
#17
David Rodríguez-Sanz, Marta Elena Losa-Iglesias, Daniel López-López, César Calvo-Lobo, Patricia Palomo-López, Ricardo Becerro-de-Bengoa-Vallejo
Gastrocnemius-soleus equinus (GSE) is a foot-ankle complaint in which the extensibility of the gastrocnemius (G) and soleus muscles (triceps surae) and ankle are limited to a dorsiflexion beyond a neutral ankle position. The asymmetric forces of leg muscles and the associated asymmetric loading forces might promote major activation of the triceps surae, tibialis anterior, transverses abdominal and multifidus muscles. Here, we made infrared recordings of 21 sportsmen (elite professional soccer players) before activity and after 30 min of running...
2017: PeerJ
https://www.readbyqxmd.com/read/28559818/infrared-thermography-in-surgery-of-newly-diagnosed-glioblastoma-multiforme-a-technical-case-report
#18
Emanuil Naydenov, Krasimir Minkin, Marin Penkov, Sevdalin Nachev, Walter Stummer
Infrared thermography (IRT) is a real-time non-contact diagnostic tool with a broad potential for neurosurgical applications. Here we describe the intraoperative use of this technique in a single patient with newly diagnosed glioblastoma multiforme (GBM). An 86-year-old female was admitted in the clinic with a 2-month history of slowly progressing left-sided paresis. Neuroimaging studies demonstrated an irregular space-occupying process consistent with a malignant glioma in the right fronto-temporo-insular region...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28558934/variation-in-rhinarium-temperature-indicates-sensory-specializations-in-placental-mammals
#19
Nele Gläser, Ronald H H Kröger
The rhinarium, a specialized nose-tip characterized by an area of naked and wet skin around the nostrils, is a typical mammalian structure. The type and amount of innervation suggests a sensory role and morphological diversity implies so far unidentified species-specific functional specializations. Rhinaria also vary in temperature and this may be related to the functions of these sensory organs. We performed a comparative study on rhinarium temperature in order to learn more about possible correlations with phylogeny and ecology...
July 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28550924/new-perspective-on-the-in%C3%A2-vivo-use-of-cold-stress-dynamic-thermography-in-integumental-reconstruction-with-the-use-of-skin-muscle-flaps
#20
Szymon Kolacz, Mateusz Moderhak, Jerzy Jankau
BACKGROUND: Among the problems encountered by plastic surgeons is the reconstruction of defects following tumors. One of the reconstructive options is trans rectus abdominis (TRAM) flap. Despite that anatomy is well explored, marginal flap necrosis may develop. To minimize the complications, imaging examinations were designed to determine the degree of flap perfusion. One of them is the thermographic examination. MATERIALS AND METHODS: We examined 38 patients who had undergone 10 reconstructive breast surgeries with a pedicled TRAM ipsilateral flap, 10 patients with a TRAM contralateral flap, and 18 patients with a TRAM supercharged flap...
May 15, 2017: Journal of Surgical Research
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