keyword
MENU ▼
Read by QxMD icon Read
search

fletcher

keyword
https://www.readbyqxmd.com/read/28324938/application-of-semi-supervised-deep-learning-to-lung-sound-analysis
#1
Daniel Chamberlain, Rahul Kodgule, Daniela Ganelin, Vivek Miglani, Richard Ribon Fletcher
The analysis of lung sounds, collected through auscultation, is a fundamental component of pulmonary disease diagnostics for primary care and general patient monitoring for telemedicine. Despite advances in computation and algorithms, the goal of automated lung sound identification and classification has remained elusive. Over the past 40 years, published work in this field has demonstrated only limited success in identifying lung sounds, with most published studies using only a small numbers of patients (typically N<;20) and usually limited to a single type of lung sound...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323885/towards-sustainable-sanitation-management-establishing-the-costs-and-willingness-to-pay-for-emptying-and-transporting-sludge-in-rural-districts-with-high-rates-of-access-to-latrines
#2
Soumya Balasubramanya, Barbara Evans, Richard Hardy, Rizwan Ahmed, Ahasan Habib, N S M Asad, Mominur Rahman, M Hasan, Digbijoy Dey, Louise Fletcher, Miller Alonso Camargo-Valero, Krishna Chaitanya Rao, Sudarshana Fernando
MOTIVATION: Proper management of fecal sludge has significant positive health and environmental externalities. Most research on managing onsite sanitation so far either simulates the costs of, or the welfare effects from, managing sludge in situ in pit latrines. Thus, designing management strategies for onsite rural sanitation is challenging, because the actual costs of transporting sludge for treatment, and sources for financing these transport costs, are not well understood. METHODS: In this paper we calculate the actual cost of sludge management from onsite latrines, and identify the contributions that latrine owners are willing to make to finance the costs...
2017: PloS One
https://www.readbyqxmd.com/read/28318841/acquisition-of-nicotine-self-administration-in-amphetamine-and-phencyclidine-models-of-schizophrenia-a-role-for-stress
#3
Paul J Fletcher, Zhaoxia Li, Kathleen M Coen, Anh D Lê
Nicotine use and dependence is very high in patients with schizophrenia. One possible reason is that altered dopamine or glutamate activity in schizophrenia enhances the reinforcing effectiveness of nicotine. We used animal models to test the hypothesis that a hyperdopaminergic state (induced by repeated intermittent injections of amphetamine) or altered glutamate function (subchronic injection of phencyclidine, PCP) facilitates spontaneous acquisition of nicotine self-administration in rats. In Experiment 1 animals in an amphetamine-induced sensitized state (AISS) did not differ from saline-injected controls in their acquisition and maintenance of nicotine self-administration...
March 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28318411/predicting-a-dissociative-disorder-from-type-of-childhood-maltreatment-and-abuser-abused-relational-tie
#4
Christa Krüger, Lizelle Fletcher
We investigate the types of childhood maltreatment and abuser-abused relational ties that best predict a dissociative disorder (DD). Psychiatric inpatients (n = 116; mean age = 35; F:M = 1.28:1) completed measures of dissociation and trauma. Abuse type and abuser-abused relational ties were recorded in the Traumatic Experiences Questionnaire. Multidisciplinary team clinical diagnosis or administration of the SCID-D-R to high dissociators confirmed DD diagnoses. Logit models described the relationships between abuser-abused relational tie and the diagnostic grouping of patients, DD present (n = 16) or DD absent (n = 100)...
February 23, 2017: Journal of Trauma & Dissociation
https://www.readbyqxmd.com/read/28318100/abrogation-of-red-blood-cell-g6pd-enzyme-activity-through-heat-treatment-development-of-survey-material-for-the-uk-neqas-g6pd-scheme
#5
D R Roper, B De la Salle, V Soni, K Fletcher, J A Green
INTRODUCTION: Participation in external quality assessment (EQA) is central to the maintenance of high-quality laboratory results in patient diagnosis and clinical trials. Laboratories in the TAF112582 DETECTIVE study (ClinicalTrials.gov identifier: NCT01376167) are enrolled in the United Kingdom National Quality Assessment Scheme (UK NEQAS) for glucose-6-phosphate dehydrogenase (G6PD) quantitative assay, which utilizes ovine (sheep) blood as a readily available source of apparently G6PD-deficient survey material...
March 20, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28306263/-pseudodistomin-e-first-asymmetric-synthesis-and-absolute-configuration-assignment
#6
Stephen G Davies, Ai M Fletcher, Paul M Roberts, James E Thomson, David Zimmer
(-)-Pseudodistomin E has been prepared for the first time, allowing its structure and absolute configuration to be confirmed. The established conjugate addition of lithium (S)-N-allyl-N-(α-methyl-p-methoxybenzyl)amide to methyl (E,E)-hepta-2,5-dienoate generated the C(2)-stereocenter, and iodolactonisation of a derivative generated the remaining two stereogenic centers. Ensuing iodide displacement was achieved using a tethering strategy, to introduce the nitrogen atom to C(5). Decarboxylative coupling of a carboxylic acid with a dialkylzinc reagent completed construction of the tridecadienyl chain...
March 17, 2017: Organic Letters
https://www.readbyqxmd.com/read/28303641/myalgic-encephalomyelitis-chronic-fatigue-syndrome-and-gulf-war-illness-patients-exhibit-increased-humoral-responses-to-the-herpesviruses-encoded-dutpase-implications-in-disease-pathophysiology
#7
Peter Halpin, Marshall Vance Williams, Nancy G Klimas, Mary Ann Fletcher, Zachary Barnes, Maria Eugenia Ariza
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and Gulf War Illness (GWI) are debilitating diseases with overlapping symptomology and there are currently no validated tests for definitive diagnosis of either syndrome. While there is evidence supporting the premise that some herpesviruses may act as possible triggers of ME/CFS, the involvement of herpesviruses in the pathophysiology of GWI has not been studied in spite of a higher prevalence of ME/CFS in these patients. We have previously demonstrated that the deoxyuridine triphosphate nucleotidohydrolases (dUTPase) encoded by Epstein-Barr virus (EBV), human herpesvirus-6 (HHV-6), and varicella-zoster virus (VZV) possess novel functions in innate and adaptive immunity...
March 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28299842/electroacupuncture-promotes-cns-dependent-release-of-mesenchymal-stem-cells
#8
Tatiana E Salazar, Matthew R Richardson, Eleni Beli, Matthew S Ripsch, John George, Youngsook Kim, Yaqian Duan, Leni Moldovan, Yuanqing Yan, Ashay Bhatwadekar, Vaishnavi Jadhav, Jared A Smith, Susan McGorray, Alicia L Bertone, Dmitri O Traktuev, Keith L March, Luis M Colon-Perez, Keith Avin, Emily Sims, Julie A Mund, Jamie Case, Shaolin Deng, Min Su Kim, Bruce McDavitt, Michael E Boulton, Jeffrey Thinschmidt, Sergio Li Calzi, Stephanie D Fitz, Robyn K Fuchs, Stuart J Warden, Todd McKinley, Anantha Shekhar, Marcelo Febo, Phillip L Johnson, Lung Ji Chang, Zhanguo Gao, Mikhail G Kolonin, Song Lai, Jinfeng Ma, Xinzhong Dong, Fletcher A White, Huisheng Xie, Mervin C Yoder, Maria B Grant
Electro-acupuncture (EA) performed in rats and humans using front-limb acupuncture sites, LI-4 and LI-11, and Du-14 and Du-20 increased functional connectivity between the anterior hypothalamus and the amygdala and mobilized mesenchymal stem cells (MSC) into the systemic circulation. In human subjects, the source of the MSC was found to be primarily adipose tissue whereas in rodents the tissue sources were considered more heterogeneous. Pharmacological disinhibition of rat hypothalamus enhanced sympathetic nervous system (SNS) activation and similarly resulted in a release of MSC into the circulation...
March 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28296652/perioperative-pregabalin-administration-does-not-prevent-chronic-postoperative-pain-systematic-review-with-a-meta-analysis-of-randomized-trials
#9
Valeria Martinez, Xavier Pichard, Dominique Fletcher
The efficacy of perioperative pregabalin treatment for preventing chronic pain remains a matter of debate. We searched the MEDLINE, EMBASE, LILACS, Cochrane, and Clinical Trial Register databases, and other sources, for randomized controlled trials comparing the effects of pregabalin and placebo. The primary outcome was the incidence of chronic postsurgical pain (CPSP) at 3 months. The secondary endpoints were CPSP at 3, 6, and 12 months and the incidence of chronic postsurgical neuropathic pain at the same time points...
February 18, 2017: Pain
https://www.readbyqxmd.com/read/28295455/cryopreserved-human-umbilical-cord-vs-biocellulose-film-for-antenatal-spina-bifida-repair-in-a-physiologic-rat-model
#10
Saul Snowise, Lovepreet Mann, Yisel Morales, Kenneth J Moise, Anthony Johnson, Stephen Fletcher, Raymond J Grill, Scheffer C G Tseng, Ramesha Papanna
BACKGROUND: Antenatal spina bifida (SB) repair with a regenerative patch may improve neurological outcomes by decreasing inflammatory scarring. OBJECTIVE: To compare cryopreserved human umbilical cord (HUC) and biocellulose film (BCF) patches sutured over SB lesions for regeneration of native cells and inflammatory response. STUDY DESIGN: Sprague-Dawley rats were gavaged with retinoic acid on embryonic day 10 (E 10) to induce SB. Hysterotomy was performed on E20 and HUC or BCF patches sutured over the defect...
March 13, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28295430/fflux-transferability-of-polarizable-machine-learned-electrostatics-in-peptide-chains
#11
Timothy L Fletcher, Paul L A Popelier
The fully polarizable, multipolar, and atomistic force field protein FFLUX is being built from machine learning (i.e., kriging) models, each of which predicts an atomic property. Each atom of a given protein geometry needs to be assigned such a kriging model. Such a knowledgeable atom needs to be informed about a sufficiently large environment around it. The resulting complexity can be tackled by collecting the 20 natural amino acids into a few groups. Using substituted deca-alanines, we present the proof-of-concept that a given atom's charge can be modeled by a few kriging models only...
March 10, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28292859/-18-f-fluoride-and-18-f-fluorodeoxyglucose-positron-emission-tomography-after-transient-ischemic-attack-or-minor-ischemic-stroke-case-control-study
#12
Alex T Vesey, William S A Jenkins, Agnese Irkle, Alastair Moss, Greg Sng, Rachael O Forsythe, Tim Clark, Gemma Roberts, Alison Fletcher, Christophe Lucatelli, James H F Rudd, Anthony P Davenport, Nicholas L Mills, Rustam Al-Shahi Salman, Martin Dennis, William N Whiteley, Edwin J R van Beek, Marc R Dweck, David E Newby
BACKGROUND: Combined positron emission tomography (PET) and computed tomography (CT) can assess both anatomy and biology of carotid atherosclerosis. We sought to assess whether (18)F-fluoride or (18)F-fluorodeoxyglucose can identify culprit and high-risk carotid plaque. METHODS AND RESULTS: We performed (18)F-fluoride and (18)F-fluorodeoxyglucose PET/CT in 26 patients after recent transient ischemic attack or minor ischemic stroke: 18 patients with culprit carotid stenosis awaiting carotid endarterectomy and 8 controls without culprit carotid atheroma...
March 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28291625/systolic-diastolic-hypertension-versus-isolated-systolic-hypertension-and-incident-heart-failure-in-older-adults-insights-from-the-cardiovascular-health-study
#13
Apostolos Tsimploulis, Helen M Sheriff, Phillip H Lam, Daniel J Dooley, Markus S Anker, Vasilios Papademetriou, Ross D Fletcher, Charles Faselis, Gregg C Fonarow, Prakash Deedwania, Michel White, Miroslava Valentova, Marc R Blackman, Maciej Banach, Charity J Morgan, Kannayiram Alagiakrishnan, Richard M Allman, Wilbert S Aronow, Stefan D Anker, Ali Ahmed
BACKGROUND: Isolated systolic hypertension (ISH) is common in older adults and is a risk factor for incident heart failure (HF). We examined the association of systolic-diastolic hypertension (SDH) with incident HF and other outcomes in older adults. METHODS: In the Cardiovascular Health Study (CHS), 5776 community-dwelling adults≥65years had data on baseline systolic and diastolic blood pressure (SBP and DBP). We excluded those with DBP<60mmHg (n=821), DBP≥90 and SBP<140mmHg (n=28), normal BP, taking anti-hypertensive drugs (n=1138), normal BP, not taking anti-hypertensive drugs, history of hypertension (n=193), and baseline HF (n=101)...
March 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28282031/a-phase-1-2-study-of-chemosensitization-with-plerixafor-plus-g-csf-in-relapsed-or-refractory-acute-myeloid-leukemia
#14
G L Uy, M P Rettig, R M Stone, M Y Konopleva, M Andreeff, K McFarland, W Shannon, T R Fletcher, T Reineck, W Eades, K Stockerl-Goldstein, C N Abboud, M A Jacoby, P Westervelt, J F DiPersio
No abstract text is available yet for this article.
March 10, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28275772/rapidly-accessible-click-rotaxanes-utilizing-a-single-amide-hydrogen-bond-templating-motif
#15
Beth E Fletcher, Michael J G Peach, Nicholas H Evans
The synthesis of hydrogen bond templated rotaxanes using the CuAAC click reaction has been achieved in yields of up to 47%, employing near stoichiometric equivalents of macrocycle and readily prepared azide and alkyne half-axle components. Interlocked structure formation has been confirmed by NMR spectroscopy and mass spectrometry. Density functional theory calculations support (1)H NMR spectroscopic analysis that the macrocycle resides over the amide of the axle component, rather than the newly formed triazole, as a result of more favourable hydrogen bond interactions...
March 9, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28274772/a-double-blind-randomised-controlled-trial-of-ibuprofen-compared-with-placebo-for-uncomplicated-cellulitis-of-the-upper-or-lower-limb
#16
Joshua S Davis, Carol Mackrow, Paula Binks, Wendy Fletcher, Pascale Dettwiller, Catherine Marshall, Jane Day, William Pratt, Steven Yc Tong
OBJECTIVES: Cellulitis is a common skin infection resulting in inflammation that may take weeks to resolve despite appropriate antibiotics. It is unclear whether the adjunctive use of non-steroidal anti-inflammatory drugs hastens the resolution of inflammation in patients with cellulitis. METHODS: We conducted a double-blind, randomised controlled trial comparing ibuprofen 400mg three times daily for five days with identical placebo in adults with uncomplicated cellulitis of the upper or lower limb who were treated with intravenous cefazolin via an outpatient parenteral antibiotic treatment service at one of two Australian hospitals...
March 5, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28273331/effects-of-native-diversity-soil-nutrients-and-natural-enemies-on-exotic-invasion-in-experimental-plant-communities
#17
Robert W Heckman, Fletcher W Halliday, Peter A Wilfahrt, Charles E Mitchell
Many factors can promote exotic plant success. Three of these factors-greater pressure from natural enemies on natives, increased soil nutrient supply, and low native species richness-may interact during invasions. To test for independent and interactive effects of these drivers, we planted herbaceous perennial communities at two levels of native richness (monocultures and five-species polycultures). We then factorially manipulated soil nutrient supply and access to these communities by aboveground foliar enemies (fungal pathogens and insect herbivores), and allowed natural colonization to proceed for four years...
March 8, 2017: Ecology
https://www.readbyqxmd.com/read/28272882/the-inside-story-of-gas-processes-within-stormwater-biofilters-does-greenhouse-gas-production-tarnish-the-benefits-of-nitrogen-removal
#18
Emily G I Payne, Tracey Pham, Perran Louis Miall Cook, Ana Deletic, Belinda E Hatt, Tim D Fletcher
Stormwater biofilters are dynamic environments, supporting diverse processes that act to capture and transform incoming pollutants. However, beneficial water treatment processes can be accompanied by undesirable greenhouse gas production. This study investigated the potential for nitrous oxide (N2O) and methane (CH4) generation in dissolved form at the base of laboratory-scale stormwater biofilter columns. The influence of plant presence, species, inflow frequency and inclusion of a saturated zone and carbon source were studied...
March 8, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28272829/freud-and-the-scene-of-trauma-by-john-fletcher
#19
Ira Brenner
No abstract text is available yet for this article.
January 2017: Psychoanalytic Quarterly
https://www.readbyqxmd.com/read/28272429/individual-movement-strategies-revealed-through-novel-clustering-of-emergent-movement-patterns
#20
Denis Valle, Sreten Cvetojevic, Ellen P Robertson, Brian E Reichert, Hartwig H Hochmair, Robert J Fletcher
Understanding movement is critical in several disciplines but analysis methods often neglect key information by adopting each location as sampling unit, rather than each individual. We introduce a novel statistical method that, by focusing on individuals, enables better identification of temporal dynamics of connectivity, traits of individuals that explain emergent movement patterns, and sites that play a critical role in connecting subpopulations. We apply this method to two examples that span movement networks that vary considerably in size and questions: movements of an endangered raptor, the snail kite (Rostrhamus sociabilis plumbeus), and human movement in Florida inferred from Twitter...
March 8, 2017: Scientific Reports
keyword
keyword
105057
1
2
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"