Read by QxMD icon Read


Alessandra S Oliveira, Cristiano A Ballus, Cristiano R Menezes, Roger Wagner, José Neri G Paniz, Bruna Tischer, Adilson B Costa, Juliano S Barin
An innovative use of thermal infrared enthalpimetry (TIE) is proposed for the determination of alcoholic content of red and white wines. Notwithstanding the presence of ethanol in beverages, absolute ethanol was added directly to wines, and the temperature rise caused by the heat of dilution was monitored using an infrared camera. Analytical signals were obtained in only 10 s for four samples simultaneously, and a calibration curve was constructed with hydroalcoholic reference solutions. A linear calibration curve was obtained from 3...
August 30, 2018: Food Chemistry
Szu-Hua Chen, On-Yee Lo, Taylor Kay, Li-Shan Chou
Texting during walking has become a very common daily activity and could alter gait performance, especially during locomotion when additional visual attention is demanded, such as obstacle crossing. The purpose of this study was to examine biomechanical changes in obstructed gait characteristics while engaging in a phone texting activity. Gait analyses were performed on ten young healthy adults under the following two tasks: 1) walking and crossing an obstacle set at a 10% of the subject's height and 2) walking and crossing an obstacle while responding to a text message...
April 6, 2018: Gait & Posture
Richard Börner, Danny Kowerko, Mélodie C A S Hadzic, Sebastian L B König, Marc Ritter, Roland K O Sigel
Single-molecule microscopy has become a widely used technique in (bio)physics and (bio)chemistry. A popular implementation is single-molecule Förster Resonance Energy Transfer (smFRET), for which total internal reflection fluorescence microscopy is frequently combined with camera-based detection of surface-immobilized molecules. Camera-based smFRET experiments generate large and complex datasets and several methods for video processing and analysis have been reported. As these algorithms often address similar aspects in video analysis, there is a growing need for standardized comparison...
2018: PloS One
Rahsan Yilmaz, Nihat Yumusak, Murat Sadic, Hasan I Atilgan, Meliha Korkmaz, Faruk Bozkaya
OBJECTIVE: The aim of this study was to investigate histopathological changes and biodistribution of iodine-131 (I) in the gastrointestinal system (GIS) and also Na/I Symporter (NIS) presence by immunohistochemically in the experimental treatment of rats with radioactive iodine (RAI). MATERIALS AND METHODS: Rats were divided into experimental and control groups as random early group 2 (24 h), intermediate group 3 (3 weeks), and late period group 4 (3 months). Experimental groups were administered 100 MBq (∼3 mCi, 12 mCi/kg) by orogastric route with orogastric tube...
April 12, 2018: Nuclear Medicine Communications
Jogeswar Barman, Sangma Serin
Background: Anthropometric measurements of the face can be used as a guide in selecting proper sized anterior teeth. Aim: The aim of this study is to evaluate the relationship between the interpupillary distance (IPD) and the combined mesiodistal width of maxillary central incisors (MDW of MCIs) to establish their morphometric criterion and their significance in two ethnic groups of Northeast India. Methodology: A total of 120 participants consisting of 60 indigenous students each from Assam and Meghalaya in the age group of 18-25 years were selected after taking their written consent...
March 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Dawnie Wolfe Steadman, Angela Dautartas, Michael W Kenyhercz, Lee M Jantz, Amy Mundorff, Giovanna M Vidoli
Different animal species have been used as proxies for human remains in decomposition studies for decades, although few studies have sought to validate their use in research aimed at estimating the postmortem interval. This study examines 45 pig, rabbit, and human subjects placed in three seasonal trials at the Anthropology Research Facility. In an earlier paper, we found that overall decomposition trends did vary between species that could be due to differential insect and scavenger behavior. This study specifically examines if scavenger behavior differs by carrion species...
April 12, 2018: Journal of Forensic Sciences
Yingying Liu, Arcot Sowmya, Heba Khamis
BACKGROUND: Manually measured anthropometric quantities are used in many applications including human malnutrition assessment. Training is required to collect anthropometric measurements manually, which is not ideal in resource-constrained environments. Photogrammetric methods have been gaining attention in recent years, due to the availability and affordability of digital cameras. OBJECTIVE: The primary goal is to demonstrate that height and mid-upper arm circumference (MUAC)-indicators of malnutrition-can be accurately estimated by applying linear regression to distance measurements from photographs of participants taken from five views, and determine the optimal view combinations...
2018: PloS One
Takashi Ijiri, Hideki Todo, Akira Hirabayashi, Kenji Kohiyama, Yoshinori Dobashi
In this paper, we present a three-dimensional (3D) digitization technique for natural objects, such as insects and plants. The key idea is to combine X-ray computed tomography (CT) and photographs to obtain both complicated 3D shapes and surface textures of target specimens. We measure a specimen by using an X-ray CT device and a digital camera to obtain a CT volumetric image (volume) and multiple photographs. We then reconstruct a 3D model by segmenting the CT volume and generate a texture by projecting the photographs onto the model...
2018: PloS One
Penny C Gardner, Benoît Goossens, Jocelyn Goon Ee Wern, Petra Kretzschmar, Torsten Bohm, Ian P Vaughan
Identifying the consequences of tropical forest degradation is essential to mitigate its effects upon forest fauna. Large forest-dwelling mammals are often highly sensitive to environmental perturbation through processes such as fragmentation, simplification of habitat structure, and abiotic changes including increased temperatures where the canopy is cleared. Whilst previous work has focused upon species richness and rarity in logged forest, few look at spatial and temporal behavioural responses to forest degradation...
2018: PloS One
Yuqi Li, Aditi Majumder, Hao Zhang, M Gopi
Multi-spectral imaging using a camera with more than three channels is an efficient method to acquire and reconstruct spectral data and is used extensively in tasks like object recognition, relighted rendering, and color constancy. Recently developed methods are used to only guide content-dependent filter selection where the set of spectral reflectances to be recovered are known a priori. We present the first content-independent spectral imaging pipeline that allows optimal selection of multiple channels. We also present algorithms for optimal placement of the channels in the color filter array yielding an efficient demosaicing order resulting in accurate spectral recovery of natural reflectance functions...
April 12, 2018: Sensors
Miao Zhang, Chonmanart Ngampeerapong, David Redin, Afshin Ahmadian, Ilya Sychugov, Jan Linnros
Large arrays of nanopores can be used for high throughput biomolecule translocation with applications towards size discrimination and sorting at the single-molecule level. In this paper, we propose to discriminate DNA length by the capture rate of the molecules to an array of relatively large nanopores (50 - 130 nm) by introducing a thermal gradient in front of the pores balancing the force from an external electric field. Nanopore arrays defined by photolithography were batch processed using standard silicon technology in combination with electrochemical etching...
April 12, 2018: ACS Nano
Rosie Brigham, Josep Grau-Bove, Anna Rudnicka, May Cassar, Matija Strlic
This research assesses the precision, repeatability and accuracy of crowd-sourced scientific measurements, and whether their quality is sufficient to provide usable results. Measurements of colour and area were chosen because of the possibility of producing them with smartphone cameras. The quality of measurements was estimated experimentally by comparing data contributed by anonymous participants in heritage sites with reference measurements of known accuracy and precision. Participants performed the measurements by taking photographs with their smartphones, from which colour and dimensional data could be extracted...
April 12, 2018: Angewandte Chemie
Mina Jamre, Mojtaba Shamsaei, Mostafa Erfani, Sodeh Sadjadi, Mohammad Ghannadi Maragheh
Radioembolization with radioactive microspheres has been an effective method for the treatment of liver lesions. The aim of this study was to prepare carrier-free 188 Re loaded poly (L-lactic acid) (PLLA) microspheres through 188 Re sulfide colloidal nanoparticles (188 Re-SC nanoparticles). The formation of 188 Re-SC nanoparticles was confirmed by ultraviolet-visible spectrophotometry. The labeling yield of 188 Re-SC nanoparticles was verified using the RTLC method. Effects of synthesis parameters on morphology and size of prepared 188 Re-sulfide colloidal-PLLA microspheres (188 Re-SC-PLLA microspheres) were studied by scanning electron microscopy...
April 12, 2018: Journal of Labelled Compounds & Radiopharmaceuticals
Ida Vaa Johnsen, Espen Mariussen, Øyvind Voie
The Norwegian Armed Forces' shooting ranges contain contamination by metals such as lead (Pb) and copper (Cu) and are often used as grazing pastures for livestock. To determine whether the sheep were at risk from grazing at a shooting range in Nord-Trøndelag (the Leksdalen shooting field), a study was conducted wherein the aim was to determine the amount of soil the sheep were eating, the accumulation of Cu and Pb in the livers of lambs grazing on the shooting ranges, and the accumulation of Pb and Cu in the grass...
April 11, 2018: Environmental Science and Pollution Research International
Katherine Ledbetter-Cho, Mark O'Reilly, Russell Lang, Laci Watkins, Nataly Lim
Portable touch-screen devices have been the focus of a notable amount of intervention research involving individuals with autism. Additionally, popular media has widely circulated claims that such devices and academic software applications offer tremendous educational benefits. A systematic search identified 19 studies that targeted academic skills for individuals with autism. Most studies used the device's built-in video recording or camera function to create customized teaching materials, rather than commercially-available applications...
April 11, 2018: Journal of Autism and Developmental Disorders
Wataru Yamazaki, Yoshitsugu Tanino
[Purpose] To investigate lower-extremity joint torque during walking direction changes, focused on gender differences in pelvic width. [Subjects and Methods] Healthy males and females (n=10) changed direction while walking by side-stepping (SS) and crossover stepping (CS), stepping the left leg to the left or right, respectively, over the right leg. Movements were recorded using four infrared cameras, and ground reaction force of each lower extremity measured using two force platforms. Joint torque of each lower extremity was calculated, and each joint peak torque among walking, SS and CS was compared between genders...
December 2017: Journal of Physical Therapy Science
Hiromi Ono, Mitsuo Kusano, Masashi Nihei, Hideyuki Hayashi, Hiraku Fukushima, Masato Kawakami, Yasushi Danjo, Kimimoto Nagashima, Yuichi Shimizu, Futoshi Kawamata, Shohei Honda, Tsuyoshi Shimamura, Hiroshi Nishihara
When injected, indocyanine green (ICG) immediately combines with lipoproteins to fluoresce. Here, we studied whether ICG fluorescence is effective for endoscopic marking in gastric cancer surgery using a photodynamic eye (PDE) camera and fluorescent endoscope. An ICG solution was endoscopically injected into the submucosal layer of the gastric tumor 3 days before surgery. We observed the lesions using both a PDE camera and a fluorescent endoscope during laparotomy and laparoscopy, respectively;we also observed the fluorescent luminance and fluorescent size of the resected lesions...
2018: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
Yijia He, Ji Zhao, Yue Guo, Wenhao He, Kui Yuan
To address the problem of estimating camera trajectory and to build a structural three-dimensional (3D) map based on inertial measurements and visual observations, this paper proposes point-line visual-inertial odometry (PL-VIO), a tightly-coupled monocular visual-inertial odometry system exploiting both point and line features. Compared with point features, lines provide significantly more geometrical structure information on the environment. To obtain both computation simplicity and representational compactness of a 3D spatial line, Plücker coordinates and orthonormal representation for the line are employed...
April 10, 2018: Sensors
Muhammad Atif, Sukhan Lee
The quality of the captured point cloud and the scanning speed of a structured light 3D camera system depend upon their capability of handling the object surface of a large reflectance variation in the trade-off of the required number of patterns to be projected. In this paper, we propose and implement a flexible embedded framework that is capable of triggering the camera single or multiple times for capturing single or multiple projections within a single camera exposure setting. This allows the 3D camera system to synchronize the camera and projector even for miss-matched frame rates such that the system is capable of projecting different types of patterns for different scan speed applications...
April 8, 2018: Sensors
Elżbieta A Pieczyska, Michał Maj, Karol Golasiński, Maria Staszczak, Tadahiko Furuta, Shigeru Kuramoto
This paper presents results of investigation of multifunctional β-Ti alloy Gum Metal subjected to tension at various strain rates. Digital image correlation was used to determine strain distributions and stress-strain curves, while infrared camera allowed for us to obtain the related temperature characteristics of the specimen during deformation. The mechanical curves completed by the temperature changes were applied to analyze the subsequent stages of the alloy loading. Elastic limit, recoverable strain, and development of the strain localization were studied...
April 7, 2018: Materials
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"