Read by QxMD icon Read


Matthew D Schlesinger, Jeremy A Feinberg, Nathan H Nazdrowicz, J D Kleopfer, Jeffrey C Beane, John F Bunnell, Joanna Burger, Edward Corey, Kathy Gipe, Jesse W Jaycox, Erik Kiviat, Jacob Kubel, Dennis P Quinn, Christopher Raithel, Peter A Scott, Sarah M Wenner, Erin L White, Brian Zarate, H Bradley Shaffer
Cryptic species are a challenge for systematics, but their elucidation also may leave critical information gaps about the distribution, conservation status, and behavior of affected species. We use the leopard frogs of the eastern U.S. as a case study of this issue. We refined the known range of the recently described Rana kauffeldi, the Atlantic Coast Leopard Frog, relative to the region's two other leopard frog species, conducted assessments of conservation status, and improved methods for separating the three species using morphological field characters...
2018: PloS One
Ellen E I Fricano, Jonathan M G Perry
Maximum jaw gape has important functional implications for behavior and feeding habits in primates. It has been suggested that gape is correlated to canine height and ingested food size. Extending these correlations to the fossil record would provide insights about the diets and/or social behavior of extinct primates. However, this can be problematic due to uncertainty about size and location of musculature, and it depends on reliability and repeatability of maximum gape estimation using only skeletal elements...
November 9, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
Amir Yeganeh, Kunal R Sinha, David Fell, Daniel B Rootman
INTRODUCTION: Levator function is classically estimated by measuring upper eyelid excursion (ULE) with digital brow stenting. The purpose of this study is to compare ULE with and without brow stenting in normal and ptotic eyelids. METHODS: In this prospective observational study, normal and ptotic eyelids were recruited. Subjects were photographed with and without digital brow stenting in primary position, downgaze, and upgaze. Measurements were conducted on digital photographs...
November 9, 2018: Orbit
Maria Mariano, Maria Pia De Padova, Sandra Lorenzi, Norma Cameli
Purpose of the Study: The aim of the present prospective multicenter open study was to clinically and instrumentally evaluate the efficacy, safety, and tolerability of a shampoo, Mellis Cap® shampoo, containing ichthyol, zanthalene, mandelic acid, and honeydew honey in the treatment of mild to moderate scalp psoriasis. Procedures: Thirty subjects with mild to moderate psoriasis applied the shampoo three times a week for 12 weeks. The outcome was evaluated at 30 days (T1), 60 days (T2), and 90 days (T3) of treatment, comparing it to baseline (T0) by means of clinical and patients' evaluation, digital photographs, and videodermoscopy...
October 2018: Skin Appendage Disorders
Heather Burte, Benjamin O Turner, Michael B Miller, Mary Hegarty
Individuals differ greatly in their ability to learn and navigate through environments. One potential source of this variation is "directional sense" or the ability to identify, maintain, and compare allocentric headings. Allocentric headings are facing directions that are fixed to the external environment, such as cardinal directions. Measures of the ability to identify and compare allocentric headings, using photographs of familiar environments, have shown significant individual and strategy differences; however, the neural basis of these differences is unclear...
2018: Frontiers in Human Neuroscience
Chai-Eng Tan, Aznida F Abdul Aziz, May-Yin Hi, Nur Sarah A Azmi, Nur Khairina Ishak, Fathin Alyaa Mohamad Farid, Mohammad Nazri Zulkafli
Aim: The majority of caregivers for stroke patients in Malaysia are informal caregivers, although there are no valid tools to measure their knowledge regarding caregiving. Therefore, this study validated the Caregiving Knowledge Questionnaire (CKQ-My) as an assessment of Malaysian stroke caregivers' knowledge regarding patient positioning and feeding. Methods: Back-to-back translation was used to produce a bilingual version of the questionnaire. Hand drawings were used to replace photographs from the original questionnaire...
October 2018: Indian Journal of Palliative Care
Xinyan Huang
Dripping of molten fuels is a widely observed fire phenomenon, and, by igniting other fuels, it can promote fire spread and increase fire hazards. In this work, dripping phenomena from fires of horizontally oriented wires, coated with polyethylene (PE), are investigated in the laboratory. It is found that as long as a flame is attached to the drip, thin tissue paper can be ignited by a single drip. Below a minimum diameter (Dmin  = 0.63 mm), the drip floats up. Above a critical diameter (Dcrt  = 2...
November 8, 2018: Scientific Reports
K Bonanthaya, T Nayak, S Bitra, M Rachwalski, P N Shetty
Nasoalveolar moulding is a presurgical orthopaedic technique used to improve the outcomes of bilateral clefts. However, the lack of a validated scale tailored to bilateral clefts makes it difficult to quantify the merits of nasoalveolar moulding and compare it to other techniques. In this study, a recently published anatomical subunit scale was used to evaluate and compare the early effects of nasoalveolar moulding. Two groups of similarly treated bilateral cleft patients were included: one in which patients underwent presurgical nasoalveolar moulding and one in which they did not...
November 5, 2018: International Journal of Oral and Maxillofacial Surgery
Hee Kyung Yang, Ji Eun Oh, Sang Beom Han, Kwang Gi Kim, Jeong-Min Hwang
PURPOSE: Assessment of optic disc pallor in fundus photographs may be frequently misinterpreted due to the subjective nature of interpretation. We developed a fully automatic computer-aided detection (CAD) system for optic disc pallor using colour fundus photographs and evaluated the accuracy of the system. METHODS: A newly proposed CAD system was developed for automated segmentation and image analysis of optic disc pallor, and a logistic regression model was developed for risk analysis...
November 8, 2018: Acta Ophthalmologica
Diana Mortensen, Sotiria Gizani, Olina Salamara, Iosif Sifakakis, Svante Twetman
Objective: To investigate if the alternating current impedance spectroscopy (ACIS) technology could be used to monitor remineralization of post-orthodontic white spot lesions (WSLs) after debonding of fixed orthodontic appliances. Material and methods: The study group consisted of 28 adolescents (aged 12-16 years) with at least two WSLs on their maxillary incisors, canines, or first premolars at debonding. Buccal surfaces (n = 194) were visually examined and scored with modified International Caries Detection and Assessment System (ICDAS) criteria and with the CarieScan Pro device by three examiners according to manufactures manual (test method)...
November 8, 2018: European Journal of Orthodontics
Sandamali A Ekanayaka, Sharon A McClellan, Xudong Peng, Ronald P Barrett, Rebecca Francis, Linda D Hazlett
PURPOSE: High mobility group box 1 (HMGB1) contributes to adverse disease outcome in Pseudomonas aeruginosa keratitis. This study tests Box A, an HMGB1 antagonist, in a model of the disease. METHODS: C57BL/6 mice (B6) were injected subconjunctivally (1 day before infection) with Box A or phosphate-buffered saline (PBS), infected with P. aeruginosa strain ATCC 19660, and injected intraperitoneally with Box A or PBS at 1 and 3 days postinfection (p.i.). Clinical scores, photographs with a slit lamp camera, real-time polymerase chain reaction (RT-PCR), western blot, immunohistochemistry, enzyme-linked immunosorbent assay (ELISA), myeloperoxidase (MPO), and bacterial plate count were used to assess disease outcome...
November 8, 2018: Journal of Ocular Pharmacology and Therapeutics
Jessica E Monk, Sue Belson, Ian G Colditz, Caroline Lee
Negative affective states such as anxiety and depression pose a risk to animal welfare, however, practical tests for assessing these states in animals are limited. In humans, anxious individuals are shown to pay more attention toward threatening information than non-anxious individuals, known as an attention bias. Previously, an attention bias test was developed and validated as a measure of anxious states in sheep, where more anxious sheep showed increased attention toward a threat (dog) and were more vigilant than Control animals...
2018: Frontiers in Behavioral Neuroscience
Jaewon Kim, Abhijeet Ghosh
We present a novel computational photography technique for single-shot separation of diffuse/specular reflectance, as well as novel angular domain separation of layered reflectance. We present two imaging solutions for this purpose: two-way polarized light-field (TPLF) imaging and four-way polarized light-field (FPLF) imaging. TPLF imaging consists of a polarized light-field camera, which simultaneously captures two orthogonal states of polarization. A single photograph of a subject acquired with the TPLF camera under polarized illumination then enables standard separation of diffuse (depolarizing) and polarization preserving specular reflectance using light-field sampling...
November 6, 2018: Sensors
Xueli Liu, Wen Wang, Yufeng Zhang, Yong Pan, Yong Liang, Junhong Li
In this contribution, a new surface acoustic wave (SAW)-based sensor was proposed for sensing hydrogen sulfide (H₂S) at room temperature (30 °C), which was composed of a phase discrimination circuit, a SAW-sensing device patterned with delay line, and a triethanolamine (TEA) coating along the SAW propagation path of the sensing device. The TEA was chosen as the sensitive interface for H₂S sensing, owing to the high adsorption efficiency by van der Waals' interactions and hydrogen bonds with H₂S molecules at room temperature...
November 6, 2018: Sensors
Uyen Koh, Caitlin Horsham, H Peter Soyer, Lois J Loescher, Nicole Gillespie, Dimitrios Vagenas, Monika Janda
BACKGROUND: Mobile teledermoscopy may facilitate skin self-examinations (SSEs) and further improve monitoring and detection of melanoma. OBJECTIVE: To assess consumer acceptability and expectations of a mobile health app used to: (i) instruct SSE and (ii) conduct consumer-performed mobile teledermoscopy. METHODS: People aged 18 years and above were invited to participate in either (i) an online survey or (ii) focus group in Brisbane, Australia...
November 7, 2018: Dermatology: International Journal for Clinical and Investigative Dermatology
Mattia Siragusa, Stefano Dall'Olio, Pil M Fredericia, Mikael Jensen, Torsten Groesser
Clonogenic assays are powerful tools for testing cell reproductive death after biological damage caused by, for example, ionizing radiation. Traditionally, the methods require a cumbersome, slow and eye-straining manual counting of viable colonies under a microscope. To speed up the counting process and minimize those issues related to the subjective decisions of the scoring personnel, we developed a semi-automated, image-based cell colony counting setup, named CoCoNut (Colony Counter developed by the Nutech department at the Technical University of Denmark)...
2018: PloS One
Rajiv Raman, Sangeetha Srinivasan, Sunny Virmani, Sobha Sivaprasad, Chetan Rao, Ramachandran Rajalakshmi
Remarkable advances in biomedical research have led to the generation of large amounts of data. Using artificial intelligence, it has become possible to extract meaningful information from large volumes of data, in a shorter frame of time, with very less human interference. In effect, convolutional neural networks (a deep learning method) have been taught to recognize pathological lesions from images. Diabetes has high morbidity, with millions of people who need to be screened for diabetic retinopathy (DR)...
November 6, 2018: Eye
Heidi M Felix, Amy Lannen
BACKGROUND: Colposcopy is a common office procedure providing a magnified view of the cervix for the evaluation of an abnormal cytology result. Traditionally the procedure has been replicated in simulation training by using a sausage or hotdog to represent the cervix and allow for target biopsy. This is neither reusable nor sustainable. METHOD: We developed a cervix model comprised of food coloring and ballistics gel. After cooling, the surface was dotted with gel that can be activated by a black light to mimic acetowhite changes...
November 5, 2018: Obstetrics and Gynecology
Hasan Alhaddad, Bader H Alhajeri
Careful collection and organization of biological specimens and their associated data are at the core of field research (e.g., ecology, genetics). Fieldwork data are often collected by handwriting or unsystematically via an electronic device (e.g., laptop), a process that is time-intensive, disorganized, and may lead to transcription errors, as data are copied to a more permanent repository. SamplEase is an iOS and Android application that is designed to ease the process of collecting biological specimen data in the field (data associated with biological samples, such as location, age, and sex)...
October 2018: Ecology and Evolution
Elodie Barat, Sylvia Wirth, Jean-René Duhamel
Perceiving social and emotional information from faces is a critical primate skill. For this purpose, primates evolved dedicated cortical architecture, especially in occipitotemporal areas, utilizing face-selective cells. Less understood face-selective neurons are present in the orbitofrontal cortex (OFC) and are our object of study. We examined 179 face-selective cells in the lateral sulcus of the OFC by characterizing their responses to a rich set of photographs of conspecific faces varying in age, gender, and facial expression...
November 5, 2018: Proceedings of the National Academy of Sciences of the United States of America
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"