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https://www.readbyqxmd.com/read/29225494/rolling-resistance-of-shallow-granular-deformation
#1
Keaton J Burns, Neil J Balmforth, Ian J Hewitt
Experiments are conducted to measure the resistance experienced by light cylinders rolling over flat beds of granular media. Sand and glass spheres are used for the beds. The trajectories of the rolling cylinders are determined through optical tracking, and velocity and acceleration data are inferred through fits to these trajectories. The rolling resistance is dominated by a velocity-independent component, but a velocity-dependent drag exceeding the expected strength of air drag is also observed. The results are compared to a theoretical model based on a cohesionless Mohr-Coulomb rheology for a granular medium in the presence of gravity...
November 2017: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29223911/pcbs-and-pcdd-fs-in-soil-from-informal-e-waste-recycling-sites-and-open-dumpsites-in-india-levels-congener-profiles-and-health-risk-assessment
#2
Paromita Chakraborty, Sakthivel Selvaraj, Masafumi Nakamura, Balasubramanian Prithiviraj, Alessandra Cincinelli, John J Bang
Growth of informal electronic waste (e-waste) recycling sector is an emerging problem for India. The presence of halogenated compounds in e-wastes may result in the formation of persistent organic pollutants like polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) during recycling processes. We therefore investigated PCBs and PCDD/Fs in surface soils explicitly from the informal e-waste recycling sites and nearby open dumpsites of major metropolitan cities from four corners of India, viz...
December 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29210638/medical-applications-of-collagen-and-collagen-based-materials
#3
Anatoly Borisovich Shekhter, Alexey Leonidovich Fayzullin, Marina Nikolaevna Vukolova, Tatyana Georgiyevna Rudenko, Varvara Dmitriyevna Osipycheva, Petr Francevich Litvitsky
Collagen and collagen-based materials have been successfully used in medicine for over 50 years. The number of scientific articles about the role of collagen in the construction of scaffolds for tissue engineering has risen precipitously in recent years. The review contains materials about historic and modern applications of collagen in medicine such as soluble collagen injections, solid constructs reconstructed from solution, and decellularized collagen matrices. The analysis of published data proves the efficacy of collagen material in the treatment of chronic wounds, burns, venous and diabetic ulcers, in plastic, reconstructive and general surgery, urology, proctology, gynecology, ophthalmology, otolaryngology, neurosurgery, dentistry, cardiovascular and bone and cartilage surgery, as well as in cosmetology...
December 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29101691/a-national-assessment-of-the-effect-of-intensive-agro-land-use-practices-on-nonpoint-source-pollution-using-emission-scenarios-and-geo-spatial-data
#4
Dong Zhuo, Liming Liu, Huirong Yu, Chengcheng Yuan
China's intensive agriculture has led to a broad range of adverse impacts upon ecosystems and thereby caused environmental quality degradation. One of the fundamental problems that face land managers when dealing with agricultural nonpoint source (NPS) pollution is to quantitatively assess the NPS pollution loads from different sources at a national scale. In this study, export scenarios and geo-spatial data were used to calculate the agricultural NPS pollution loads of nutrient, pesticide, plastic film residue, and crop straw burning in China...
November 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29056028/-application-advances-of-three-dimensional-bioprinting-in-burn-and-plastic-surgery-field
#5
R B Li, M X Li, G H Guo, H Y Zhang
Three-dimensional bioprinting is one of the latest and fastest growing technologies in the medical field. It has been implemented to print part of the transplantable tissues and organs, such as skin, ear, and bone. This paper introduces the application status, challenges, and application prospect of three-dimensional bioprinting in burn and plastic surgery field.
October 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29028413/initial-assessment-treatment-and-follow-up-of-minor-pediatric-burn-wounds-in-four-patients-remotely-a-preliminary-communication
#6
Marek A Paul, Parisa Kamali, Ahmed M S Ibrahim, Caroline Medin, Bernard T Lee, Samuel J Lin
BACKGROUND: Close, multidisciplinary collaboration with burn experts is the essential strategy to achieve the best functional and esthetic outcomes in burn wound treatment. Management of minor burn injuries, where no specialized care is available, might be challenging. One concept to achieve a fast and timely result is the application of telemedicine. The objective of this study was to assess and develop a simple telemedicine protocol, which can be applied globally. MATERIAL AND METHODS: We present a pilot study based on a pediatric population of four patients with minor burns...
October 13, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29026812/medical-student-perception-of-plastic-surgery-and-the-impact-of-mainstream-media
#7
S J Fraser, S Al Youha, P J Rasmussen, J G Williams
BACKGROUND: Plastic surgery as a discipline is poorly understood by many, including primary care physicians, nurses, medical students, and the public. These misconceptions affect the specialty in a number of ways, including referral patterns and recruitment of medical students into residency programs. The reason for these commonly held misconceptions has not yet been addressed in the plastic surgery literature. As such, we assessed medical students' knowledge and perceptions of plastic surgery as a discipline and explored factors influencing these opinions...
February 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29025217/use-of-lipotransfer-in-scleroderma
#8
Michelle F Griffin, Aurora Almadori, Peter E Butler
Lipotransfer for soft tissue filling is a well-established plastic and aesthetic surgical technique. Elective fat grafting is considered a safe and well-tolerated procedure. Coleman and others have reported that fat grafting may have tissue regenerative properties and not only serve as a soft tissue filler. There have been reports from our group and others that it may improve fibrosis secondary to many different pathological aetiologies including scleroderma, burn injury, lichen sclerosis, graft vs host disease, and radiation...
July 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29024377/forcing-ladderenes-into-plastic-semiconductors-with-mechanochemistry
#9
Samuel W Thomas
May the force be with you: Xia, Burns, Martinez, and co-workers harnessed the ring strain of ladderenes to enable both their polymerization and mechanochemical unzipping to yield semiconducting polyacetylene-based block copolymers. These materials have promise as functional polymers for applications such as detection of physical stress.
October 11, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29017800/plasticity-of-the-epigenome-during-early-life-stress
#10
REVIEW
S Barnett Burns, J Kasia Szyszkowicz, Giamal N Luheshi, Pierre-Eric Lutz, Gustavo Turecki
No abstract text is available yet for this article.
October 7, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28984537/neurosurgical-transection-of-the-breast-an-unexpected-extracranial-complication-of-ventriculoperitoneal-shunt-insertion
#11
Molly Jakeman, Ranjeet Jeevan, Sasha C Burn, Sian Falder
Ventriculoperitoneal (VP) shunt placement is among the most common surgical procedures undertaken by neurosurgeons. Complications arising from the thoracic portion of the shunt are relatively rare in comparison with those of the intraventricular and peritoneal portions. Disruption of primary breast development following VP shunt placement has not previously been reported. The authors describe the case of a 15-year-old girl referred to the plastic surgery department with a significant right breast deformity and associated asymmetry following VP shunt placement performed during the neonatal period...
October 6, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28969190/groin-flap-in-paediatric-age-group-to-salvage-hand-after-electric-contact-burn-challenges-and-experience
#12
Pradeep Gupta, Rakesh Singh Tawar, Manohar Malviya
INTRODUCTION: Electric contact burn is characterised by multiple wounds produced by entrance and exit of the current. Hand is most commonly involved in the same and children are particularly susceptible to such accidents. AIM: To document effectiveness and challenges associated with the use of groin flap as an initial definitive treatment of electric contact burn in paediatric age group. MATERIALS AND METHODS: From January 2015 to December 2016, 25 children up to 12 years of age, who were admitted at SMS Medical College, Jaipur, Rajasthan, India, after electric burn injury with hand defect and who were treated by pedicled groin flap at the Department of Plastic and Reconstructive Surgery, were included in the study...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28953520/an-evaluation-of-different-bridging-techniques-for-short-nerve-gaps
#13
Imran Ahmad, Mohd Altaf Mir, Arshad Hafeez Khan
BACKGROUND: In this study, we investigated sensory and motor outcomes for different bridging techniques for short nerve gaps. MATERIAL AND METHODS: This study was conducted in the Postdoctoral Department of Burns, Plastic, and Reconstructive Surgery of our institution from August 2014 to May 2017. All patients with posttraumatic short nerve gaps of 3 cm or less of median, ulnar, and/or both in forearm and wrists were included in the study. Patients with known causes of neuropathies were excluded...
November 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28947688/-pathophysiology-and-treatment-of-orofacial-pain
#14
Masamichi Shinoda, Noboru Noma
"Pain" is one of body defense mechanisms and crucial for the life support. However, orofacial pain such as myofascial pain syndrome, burning mouth syndrome and trigeminal neuralgia plays no part in body defense mechanisms and requires therapeutic intervention. Recent studies have indicated that plastic changes in the activities of trigeminal neurons, satellite glial cells in trigeminal ganglion, secondary neurons, microglia and astrocytes in trigeminal spinal subnucleus following orofacial inflammation and trigeminal nerve injury are responsible for orofacial pain mechanisms...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28918904/comparison-of-laser-doppler-imaging-ldi-and-clinical-assessment-in-differentiating-between-superficial-and-deep-partial-thickness-burn-wounds
#15
Saadia Nosheen Jan, Farid Ahmed Khan, Muhammad Mustehsan Bashir, Muneeb Nasir, Hamid Hussain Ansari, Hussan Birkhez Shami, Umer Nazir, Asif Hanif, Muhammad Sohail
PURPOSE OF PRESENTATION/STUDY: To compare the accuracy of Laser Doppler Imaging (LDI) and clinical assessment in differentiating between superficial and deep partial thickness burns to decide whether early tangential excision and grafting or conservative management should be employed to optimize burn and patient management. STUDY PERIOD: March 2015 to November 2016. METHODS/PROCEDURE DETAILS: Ninety two wounds in 34 patients reporting within 5days of less than 40% burn surface area were included...
September 14, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28902023/novel-modality-for-neck-rejuvenation-a-prospective-multicenter-trial-of-percutaneous-radiofrequency-ablation-of-the-cervical-branch-of-the-facial-nerve
#16
Daniel Rivlin, D Ryan Skinner, Christina Y Steinmetz-Rodriguez, Jordan S Fabrikant, Marie A Stoddard, Jeffrey J So, Shauntell J Solomon, Ronald L Moy
BACKGROUND: Neck rejuvenation offers few modalities of treatments limited to either invasive plastic surgery or temporary neuromodulation using botulinum toxin. OBJECTIVE: To access the efficacy, longevity, and safety of percutaneous monopolar radiofrequency (RF) ablation of the cervical branch of the facial nerve innervating the platysma for neck rejuvenation. MATERIALS AND METHODS: This prospective, multicenter trial enrolled 19 adult patients with noticeable platysmal banding at 2 different centers...
September 8, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28888318/under-pressure-applying-practice-based-learning-and-improvement-to-the-treatment-of-chronic-neuropathic-pain-in-patients-with-burns
#17
REVIEW
Mihaela Rapolti, Cindy Wu, Olga A Schuth, Charles Scott Hultman
Chronic neuropathic pain after burn injury may have multiple causes, such as direct nerve injury, nerve compression, or neuroma formation, and can significantly impair quality of life and limit functional recovery. Management includes a team-based approach that involves close collaboration between occupational and physical therapists, plastic surgeons, and experts in chronic pain, from neurology, anesthesia, psychiatry, and physiatry. Carefully selected patients with an anatomic cause of chronic neuropathic pain unequivocally benefit from surgical intervention...
October 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/28888303/fat-grafting-for-burn-traumatic-and-surgical-scars
#18
REVIEW
Rafi Fredman, Adam J Katz, Charles Scott Hultman
Fat grafting provides a reliable modality with expanding usefulness in reconstructive plastic surgery. Owing to its mechanical and theorized regenerative properties, adipose tissue can improve scar qualities and scar related symptoms when grafted adjacent to or within a scar. In this article, the literature describing the effect of fat grafting on various types of scars, current scientific understanding of fat grafting for scars, and our current approach to the management of problematic burn scars are reviewed...
October 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/28877135/want-correct-percentage-of-tbsa-burned-let-a-layman-do-the-assessment
#19
Ilaria Tocco-Tussardi, Benjamin Presman, Fredrik Huss
Accurate determination of burn size significantly impacts both immediate management and long-term outcome. In the era of evidence-based medicine, the variability in TBSA% assessment shown by traditional methods may prove unacceptable and technology-aided systems become the "accepted standard." The objective of this study was to push this scenario to the limit by investigating the accuracy and consistency of TBSA% estimations using a computer-aided tool. Five Laymen (health care-burn management naïve people) were trained on the handling of the technology-aided assessment tool Burn Case 3D and asked to calculate TBSA% for 18 clinical pictures of burns with different patterns and sizes...
August 31, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28869387/report-on-the-observer-training-at-brooke-army-medical-center-in-san-antonio-texas-usa
#20
A Bajus
A short report describing the unique experience of visiting the famous Brooke Army Medical Center (BAMC) in San Antonio, Texas, USA and its Burn Center and Plastic Surgery Department in the period between June 27 and August 26, 2016.
2017: Acta Chirurgiae Plasticae
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