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https://www.readbyqxmd.com/read/28813924/probabilistic-vs-linear-blending-approaches-to-shared-control-for-wheelchair-driving
#1
Chinemelu Ezeh, Pete Trautman, Louise Devigne, Valentin Bureau, Marie Babel, Tom Carlson
Some people with severe mobility impairments are unable to operate powered wheelchairs reliably and effectively, using commercially available interfaces. This has sparked a body of research into "smart wheelchairs", which assist users to drive safely and create opportunities for them to use alternative interfaces. Various "shared control" techniques have been proposed to provide an appropriate level of assistance that is satisfactory and acceptable to the user. Most shared control techniques employ a traditional strategy called linear blending (LB), where the user's commands and wheelchair's autonomous commands are combined in some proportion...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813915/vibrofocus-design-of-a-focal-vibro-tactile-robotic-assistive-system-for-spasticity-rehabilitation
#2
Tijana Jevtic Vojinovic, Aleksandar Zivanovic, Tom Carlson, Rui C V Loureiro
The main focus of spasticity treatment is to alleviate pain, improve function and reduce risk of additional complications. In this paper the design of a robotic system with enhanced focal vibro-tactile stimulation for the treatment of spasticity in the upper limbs is presented. Building on emerging evidence on the use of vibrations in the treatment of spasticity, we propose a new integrated approach. Our design combines the use of vibro-tactile stimulation of the high tone muscle with robotic movement assistance to augment rehabilitation outcomes in patients with spasticity in the upper limbs...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28811209/prevalence-of-pulmonary-embolism-in-patients-presenting-to-the-emergency-department-with-syncope
#3
Alison Frizell, Nicole Fogel, Jacob Steenblik, Margaret Carlson, Joseph Bledsoe, Troy Madsen
OBJECTIVES: A recent study reported a high prevalence of pulmonary embolism (PE) among patients admitted with syncope. We sought to determine whether these findings were validated in our patient population. METHODS: We performed a retrospective, secondary analysis of prospectively gathered data from patients presenting with syncope to an academic emergency department (ED) from July 2010 to December 2015. We analyzed baseline information from the time of the ED visit, recorded outcomes during the hospital stay, and contacted patients by phone at least 30days after the ED visit...
July 31, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28809777/pigmented-epithelioid-melanocytoma-pem-animal-type-melanoma-atm-quest-for-an-origin-report-of-one-unusual-case-indicating-follicular-origin-and-another-arising-in-an-intradermal-nevus
#4
Ashley Tarasen, J Andrew Carlson, M Kathryn Leonard, Glenn Merlino, David Kaetzel, Andrzej T Slominski
Pigmented epithelioid melanocytoma (PEM) is a tumor encompassing epithelioid blue nevus of Carney complex (EBN of CNC) and was previously termed animal-type melanoma. Histologically PEMs are heavily pigmented spindled and epithelioid dermal melanocytic tumors with infiltrative borders, however, their origin remains unclear. Stem cells for the epidermis and hair follicle are located in the bulge area of the hair follicle with the potential to differentiate into multiple lineages. Multiple cutaneous carcinomas, including follicular cutaneous squamous cell carcinoma (FSCC), are thought to arise from stem cells in the follicular bulge...
August 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28808414/diiron-dithiolate-hydrides-complemented-with-proton-responsive-phosphine-amine-ligands
#5
Michaela R Carlson, Ryan Gilbert-Wilson, Danielle R Gray, Joyee Mitra, Thomas B Rauchfuss, Casseday P Richers
The reaction of Fe2(pdt)(CO)6 with two equivalents of Ph2PC6H4NH2 (PNH2) affords the amido hydride HFe2(pdt)(CO)2(PNH2)(PNH) {[H1H](0), pdt(2-) = CH2(CH2S(-))2}. Isolated intermediates in this conversion include Fe2(pdt)(CO)5-(κ(1)-PNH2) and Fe2(pdt)(CO)4(κ(2)-PNH2). X-ray crystallographic analysis of [H1H](0) shows that the chelating amino/amido-phosphine ligands occupy trans-dibasal positions. The (31)P NMR spectrum indicates that [H1H](0) undergoes rapid proton exchange between the amido and amine centers...
July 7, 2017: European Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28806337/the-sound-quality-of-cochlear-implants-studies-with-single-sided-deaf-patients
#6
Michael F Dorman, Sarah Cook Natale, Austin M Butts, Daniel M Zeitler, Matthew L Carlson
OBJECTIVE: The goal of the present study was to assess the sound quality of a cochlear implant for single-sided deaf (SSD) patients fit with a cochlear implant (CI). BACKGROUND: One of the fundamental, unanswered questions in CI research is "what does an implant sound like?" Conventional CI patients must use the memory of a clean signal, often decades old, to judge the sound quality of their CIs. In contrast, SSD-CI patients can rate the similarity of a clean signal presented to the CI ear and candidate, CI-like signals presented to the ear with normal hearing...
September 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28805507/the-medical-home-model-and-pediatric-asthma-symptom-severity-evidence-from-a-national-health-survey
#7
Sirikan Rojanasarot, Angeline M Carlson
The objective was to investigate the association between receiving care under the medical home model and parental assessment of the severity of asthma symptoms. It was hypothesized that parents of children who received care under the medical home model reported less severe asthma symptoms compared with their counterparts, whose care did not meet the medical home criteria. Secondary analyses were conducted using cross-sectional data from the 2011-2012 National Survey of Children's Health. Children with asthma aged 0-17 years were included and classified as receiving care from the medical home if their care contained 5 components: a personal doctor, a usual source of sick care, family-centered care, no problems getting referrals, and effective care coordination...
August 14, 2017: Population Health Management
https://www.readbyqxmd.com/read/28804781/form-and-function-optional-complementizers-reduce-causal-inferences
#8
Hannah Rohde, Joseph Tyler, Katy Carlson
Many factors are known to influence the inference of the discourse coherence relationship between two sentences. Here, we examine the relationship between two conjoined embedded clauses in sentences like The professor noted that the student teacher did not look confident and (that) the students were poorly behaved. In two studies, we find that the presence of that before the second embedded clause in such sentences reduces the possibility of a forward causal relationship between the clauses, i.e., the inference that the student teacher's confidence was what affected student behavior...
2017: Glossa
https://www.readbyqxmd.com/read/28800205/wide-field-color-imaging-of-scatter-based-tissue-contrast-using-both-high-spatial-frequency-illumination-and-cross-polarization-gating
#9
Mackenzie L Carlson, David M McClatchy, Jason R Gunn, Jonathan T Elliott, Keith D Paulsen, Stephen C Kanick, Brian W Pogue
This study characterizes the scatter-specific tissue contrast that can be obtained by high spatial frequency (HSF) domain imaging and cross-polarization (CP) imaging, using a standard color imaging system, and how combining them may be beneficial. Both HSF and CP approaches are known to modulate the sensitivity of epi-illumination reflectance images between diffuse multiply-scattered and superficially backscattered photons, providing enhanced contrast from microstructure and composition than what is achieved by standard wide-field imaging...
August 11, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28799702/utilizing-datasets-to-advance-perinatal-research
#10
REVIEW
Julia C Phillippi, Jeremy L Neal, Nicole S Carlson, Frances M Biel, Jonathan M Snowden, Ellen L Tilden
Many organizations collect and make available perinatal data for research and quality improvement initiatives. Analysis of existing data and use of retrospective study design has many advantages for perinatal researchers. These advantages include large samples, inclusion of women from diverse groups, data reflective of actual clinical processes and outcomes, and decreased risk of direct maternal and fetal harm. We review 11 publicly available datasets relevant to perinatal research and quality improvement, detail the availability of interactive websites, and discuss strategies to locate additional datasets...
August 11, 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28797020/brief-report-selection-of-hiv-1-variants-with-higher-transmission-potential-by-1-tenofovir-gel-microbicide
#11
Nobubelo K Ngandu, Jonathan M Carlson, Denis R Chopera, Nonkululeko Ndabambi, Quarraisha Abdool Karim, Salim Abdool Karim, Carolyn Williamson
BACKGROUND: Women in the CAPRISA 004 trial assigned to use 1% tenofovir (TFV) microbicide gel, who became HIV-1 infected, had higher viral load set-point and slower antibody avidity maturation compared with placebo participants. We investigated whether TFV gel was selected for viruses with altered genetic characteristics. SETTING: The participants of the CAPRISA 004 trial (n = 28 TFV and 43 placebo) were from KwaZulu-Natal Province, South Africa and were infected with HIV-1 subtype C...
September 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28793975/infant-gut-microbiome-associated-with-cognitive%C3%A2-development
#12
Alexander L Carlson, Kai Xia, M Andrea Azcarate-Peril, Barbara D Goldman, Mihye Ahn, Martin A Styner, Amanda L Thompson, Xiujuan Geng, John H Gilmore, Rebecca C Knickmeyer
BACKGROUND: Studies in rodents provide compelling evidence that microorganisms inhabiting the gut influence neurodevelopment. In particular, experimental manipulations that alter intestinal microbiota impact exploratory and communicative behaviors and cognitive performance. In humans, the first years of life are a dynamic time in gut colonization and brain development, but little is known about the relationship between these two processes. METHODS: We tested whether microbial composition at 1 year of age is associated with cognitive outcomes using the Mullen Scales of Early Learning and with global and regional brain volumes using structural magnetic resonance imaging at 1 and 2 years of age...
June 27, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28793239/ghosts-in-machine-learning-for-cognitive-neuroscience-moving-from-data-to-theory
#13
REVIEW
Thomas Carlson, Erin Goddard, David M Kaplan, Colin Klein, J Brendan Ritchie
The application of machine learning methods to neuroimaging data has fundamentally altered the field of cognitive neuroscience. Future progress in understanding brain function using these methods will require addressing a number of key methodological and interpretive challenges. Because these challenges often remain unseen and metaphorically "haunt" our efforts to use these methods to understand the brain, we refer to them as "ghosts". In this paper, we describe three such ghosts, situate them within a more general framework from philosophy of science, and then describe steps to address them...
August 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28789702/development-of-novel-genic-microsatellite-markers-from-transcriptome-sequencing-in-sugar-maple-acer-saccharum-marsh
#14
Monica Harmon, Thomas Lane, Margaret Staton, Mark V Coggeshall, Teodora Best, Chien-Chih Chen, Haiying Liang, Nicole Zembower, Daniela I Drautz-Moses, Yap Zhei Hwee, Stephan C Schuster, Scott E Schlarbaum, John E Carlson, Oliver Gailing
BACKGROUND: Sugar maple (Acer saccharum Marsh.) is a hardwood tree species native to northeastern North America and economically valued for its wood and sap. Yet, few molecular genetic resources have been developed for this species to date. Microsatellite markers have been a useful tool in population genetics, e.g., to monitor genetic variation and to analyze gene flow patterns. The objective of this study is to develop a reference transcriptome and microsatellite markers in sugar maple...
August 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28782542/supported-employment-for-veterans-with-traumatic-brain-injury-patient-perspectives
#15
Kathleen F Carlson, Terri K Pogoda, Tess Gilbert, Sandra G Resnick, Elizabeth Twamley, Maya E O'Neil, Nina A Sayer
OBJECTIVE: To quantify the need for, and interest in, Supported Employment (SE) among recent military Veterans with traumatic brain injury (TBI), and to examine characteristics associated with Veterans' interest in SE. DESIGN: Stratified random sample of Iraq and Afghanistan War Veterans confirmed to have TBI through the Veterans Health Administration (VHA) screening and evaluation system. SETTING: Community-based via mailed survey. PARTICIPANTS: We recruited 1,800 Veterans with clinician-confirmed TBI (1,080 mild TBI; 720 moderate/severe TBI) through multiple mailings...
August 3, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28782430/well-differentiated-inflammatory-liposarcoma-with-metastasis-in-a-6-y-old-cat
#16
Elizabeth Alvarez, Jennifer Dreyfus, Tim Carlson, Marie E Pinkerton, Kimberly Shaffer
Liposarcomas are rare malignant tumors showing adipocytic differentiation. We report a well-differentiated liposarcoma in a 6-y-old, male neutered cat with a prominent inflammatory component and metastatic spread to the lungs. The patient was initially presented because of fever, lethargy, and a firm subcutaneous inguinal mass. A Tru-cut biopsy of the mass revealed a mixture of well-differentiated adipocytes and lymphoplasmacytic-histiocytic inflammation, interpreted as panniculitis. The mass was surgically excised but recurred 4 mo later...
August 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28781112/current-resources-for-evidence-based-practice-september-october-2017
#17
Nicole S Carlson
No abstract text is available yet for this article.
August 4, 2017: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
https://www.readbyqxmd.com/read/28780066/risk-factors-for-measles-among-infants-in-tianjin-china
#18
Y Zhang, A L Wagner, X Wang, B F Carlson, Y Ding, J P Montgomery, B W Gillespie, M L Boulton
OBJECTIVES: Infants aged <8 months are ineligible for measles vaccination in China but represent a disproportionate number of cases. We examined the risk factors for measles among infants in Tianjin, China. STUDY DESIGN: Case-control study. METHODS: Cases were enrolled from a surveillance system, and IgG-negative controls were sampled from registries at immunization clinics. A logistic regression model assessed for risk factors. RESULTS: Among 82 cases and 485 controls, exposure to a municipal hospital (OR [odds ratio]: 5...
August 3, 2017: Public Health
https://www.readbyqxmd.com/read/28777802/evidence-of-compounded-disturbance-effects-on-vegetation-recovery-following-high-severity-wildfire-and-spruce-beetle-outbreak
#19
Amanda R Carlson, Jason S Sibold, Timothy J Assal, Jose F Negrón
Spruce beetle (Dendroctonus rufipennis) outbreaks are rapidly spreading throughout subalpine forests of the Rocky Mountains, raising concerns that altered fuel structures may increase the ecological severity of wildfires. Although many recent studies have found no conclusive link between beetle outbreaks and increased fire size or canopy mortality, few studies have addressed whether these combined disturbances produce compounded effects on short-term vegetation recovery. We tested for an effect of spruce beetle outbreak severity on vegetation recovery in the West Fork Complex fire in southwestern Colorado, USA, where much of the burn area had been affected by severe spruce beetle outbreaks in the decade prior to the fire...
2017: PloS One
https://www.readbyqxmd.com/read/28777228/the-disputed-discovery-of-facial-and-trigeminal-nerve-function-revisiting-the-contributions-of-herbert-mayo-and-charles-bell
#20
Matthew L Carlson, James Bradley, Jamie J Van Gompel, R Shane Tubbs
BACKGROUND: The first description of the voluntary motor function of the facial nerve and separate sensory-motor contributions of the trigeminal nerve is most commonly attributed to Charles Bell. However, a review of the original scientific accounts and subsequent historical publications question the validity of this credit. The objective of the present historical analysis is to clarify the contributions of Herbert Mayo toward discovering the functions of the fifth and seventh cranial nerves and to raise awareness of this historical controversy within the medical literature...
August 2, 2017: Otology & Neurotology
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