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https://www.readbyqxmd.com/read/29334274/an-overview-of-robotic-mechanical-devices-for-post-stroke-thumb-rehabilitation
#1
Marian Suarez-Escobar, Elizabeth Rendon-Velez
PURPOSE: This article aims to clarify the current state-of-the-art of robotic/mechanical devices for post-stroke thumb rehabilitation as well as the anatomical characteristics and motions of the thumb that are crucial for the development of any device that aims to support its motion. METHODS: A systematic literature search was conducted to identify robotic/mechanical devices for post-stroke thumb rehabilitation. Specific electronic databases and well-defined search terms and inclusion/exclusion criteria were used for such purpose...
January 15, 2018: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/29324048/peer-observation-of-rounds-leads-to-collegial-discussion-of-teaching
#2
J Rush Pierce, Patrick Rendón, Deepti Rao
PROBLEM: Faculty in the Division of Hospital Medicine provide most of the clinical teaching for learners at our institution. The majority of these faculty are Assistant Professors with limited formal instruction in clinical teaching. Previous Divisional strategies to improve clinical teaching ability included discussion of effective teaching behaviors, developing written expectations for teaching faculty, and instituting seminars on effective clinical teaching. Heretofore, the Division had not utilized a direct observation exercise...
January 11, 2018: Teaching and Learning in Medicine
https://www.readbyqxmd.com/read/29316200/formation-of-nanotubular-tio2-structures-with-varied-surface-characteristics-for-biomaterial-applications
#3
Robinson Aguirre, Mónica Echeverry-Rendón, David Quintero, Juan G Castaño, Martin C Harmsen, Sara Robledo, Félix Echeverría E
Nanotubular structures were generated on the surface of titanium c.p. by anodization technique in an aqueous solution of acetic acid (14% v/v) with different sources of fluoride ion (HF, NaF, NH4 F). The aim of using these three different compounds is to study the effect of the counterion (H+ , Na+ and NH4+ ) on the morphology, wettability and surface free energy of the modified surface. Nanotubes were generated at 10 and 15 V for each anodizing solution. To further improve surface characteristics, the samples were heat-treated at 600°C for 4 hours and at 560°C for 3 hours...
January 9, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29281089/seasonal-reproductive-biology-of-drosophila-suzukii-diptera-drosophilidae-in-temperate-climates
#4
Alberto Grassi, Angela Gottardello, Daniel T Dalton, Gabriella Tait, Dalila Rendon, Claudio Ioriatti, David Gibeaut, M Valerio Rossi Stacconi, Vaughn M Walton
Drosophila suzukii (Matsumura; Diptera: Drosophilidae) is a key pest of sweet cherry and small fruits worldwide. The present studies were designed to describe the reproductive physiology in both sexes, through dissections of their reproductive organs. We extensively dissected female D. suzukii throughout the season from 2013 to 2016 and classified the reproductive status flies based on five recognizable ovarian maturation stages: 1) no ovaries; 2) unripe ovaries 3) ripening eggs in ovarioles; 4) mature eggs in ovarioles; and 5) mature eggs in the abdomen...
December 21, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/29249109/-clinical-significance-vs-statistical-significance-how-to-interpret-the-confidence-interval-at-95
#5
José Darío Martínez-Ezquerro, Alberto Riojas-Garza, Mario Enrique Rendón-Macías
The validity of a study depends on its proper planning, execution and analysis. If these are sufficiently correct, the decision to apply the recommendations issued depends on the expected clinical effect. This effect may have random variations, hence the need to use statistical inference. For years the p-value has been used to determine this statistical significance and the confidence intervals to measure the magnitude of the effect. In this review we present a proposal of how to interpret the 95 % confidence intervals (CI 95 %) as estimators of the expected effect variability based on considering the threshold or value of clinical significance and the null value of the difference or rejection of statistical significance...
October 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29245537/generic-synopsis-of-the-jumping-plant-lice-hemiptera-sternorrhyncha-psylloidea-from-colombia
#6
Diana Isabel Rendón-Mera, Francisco Serna, Daniel Burckhardt
Jumping plant-lice (Hemiptera: Sternorrhyncha: Psylloidea) are a group of phloem-feeding insects with nearly 4000        described species. Previous records from Colombia comprise 19 genera of all eight known families. The revision of material deposited in six Colombian and three foreign museums yielded another nine genera that constitute new country records. Material from 16 departments was examined. Each genus is diagnosed and information is provided on biology, damage and host-plants. Local distribution maps and a generic key for the identification of adults are provided...
November 20, 2017: Zootaxa
https://www.readbyqxmd.com/read/29231726/activation-of-small-molecules-by-the-metal-amido-bond-of-rhodium-iii-and-iridium-iii-%C3%AE-5-c5me5-m-aminopyridinate-complexes
#7
Ana Zamorano, Nuria Rendón, Joaquín López-Serrano, Eleuterio Álvarez, Ernesto Carmona
We report the synthesis and structural characterization of five-coordinate complexes of rhodium and iridium of the type [(η5-C5Me5)M(N^N)]+ (3-M+), where N^N represents the aminopyridinate ligand derived from 2-NH(Ph)-6-(Xyl)C5H3N (Xyl = 2,6-Me2C6H3). The two complexes were isolated as salts of the BArF anion (BArF = B[3,5-(CF3)2C6H3]4). The M-Namido bond of complexes 3-M+ readily activated CO, C2H4, and H2. Thus, compounds 3-M+ reacted with CO under ambient conditions, but whereas for 3-Rh+, CO migratory insertion was fast, yielding a carbamoyl carbonyl species, 4-Rh+, the stronger Ir-Namido bond of complex 3-Ir+ caused the reaction to stop at the CO coordination stage...
December 12, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29229610/follow-up-imaging-after-nephrectomy-for-cancer-in-canada-urologists-compliance-with-guidelines-an-observational-study
#8
Alice Dragomir, Armen Aprikian, Anil Kapoor, Antonio Finelli, Frédéric Pouliot, Ricardo Rendon, Peter C Black, Ronald Moore, Rodney H Breau, Jun Kawakami, Darrell Drachenberg, Jean-Baptiste Lattouf, Simon Tanguay
BACKGROUND: Surgical tumour removal remains the preferred treatment for most patients with renal cell carcinoma, and many medical associations have proposed guidelines for the optimal surveillance of patients following surgery. This study evaluated the adherence of Canadian urologists to the follow-up guidelines proposed by the Canadian Urological Association (CUA) in 2009. METHODS: The study cohort was identified from the Canadian Kidney Cancer Information System, a prospectively populated database from 15 academic institutions in 6 Canadian provinces: British Colombia, Alberta, Manitoba, Ontario, Quebec and Nova Scotia...
December 11, 2017: CMAJ Open
https://www.readbyqxmd.com/read/29228829/vanadium-pentoxide-increased-pten-and-decreased-shp1-expression-in-nk-92mi-cells-affecting-pi3k-akt-mtor-and-ras-mapk-pathways
#9
Francisco Gallardo-Vera, Miguel Tapia-Rodriguez, Daniel Diaz, Teresa Fortoul van der Goes, Luis F Montaño, Erika P Rendón-Huerta
Vanadium is an air pollutant that imparts immunosuppressive effects on NK cell immune responses, in part, by dysregulating interleukin (IL)-2/IL-2R-mediated JAK signaling pathways and inducing apoptosis. The aim of the present study was to evaluate effects of vanadium pentoxide (V2O5) on other IL-2 receptor-mediated signaling pathways, i.e. PI3K-AKT-mTOR and Ras-MAPK. Here, IL-2-independent NK-92MI cells were exposed to different V2O5 doses for 24 h periods. Expression of PI3K, Akt, mTOR, ERK1/2, MEK1, PTEN, SHP1, BAD and phosphorylated forms, as well as caspases-3, -8, -9, BAX and BAK in/on the cells were then determined by flow cytometry...
December 2018: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/29198722/a-recurrent-de-novo-nonsense-variant-in-zswim6-results-in-severe-intellectual-disability-without-frontonasal-or-limb-malformations
#10
Elizabeth E Palmer, Raman Kumar, Christopher T Gordon, Marie Shaw, Laurence Hubert, Renee Carroll, Marlène Rio, Lucinda Murray, Melanie Leffler, Tracy Dudding-Byth, Myriam Oufadem, Seema R Lalani, Andrea M Lewis, Fan Xia, Allison Tam, Richard Webster, Susan Brammah, Francesca Filippini, John Pollard, Judy Spies, Andre E Minoche, Mark J Cowley, Sarah Risen, Nina N Powell-Hamilton, Jessica E Tusi, LaDonna Immken, Honey Nagakura, Christine Bole-Feysot, Patrick Nitschké, Alexandrine Garrigue, Geneviève de Saint Basile, Emma Kivuva, Richard H Scott, Augusto Rendon, Arnold Munnich, William Newman, Bronwyn Kerr, Claude Besmond, Jill A Rosenfeld, Jeanne Amiel, Michael Field, Jozef Gecz
A recurrent de novo missense variant within the C-terminal Sin3-like domain of ZSWIM6 was previously reported to cause acromelic frontonasal dysostosis (AFND), an autosomal-dominant severe frontonasal and limb malformation syndrome, associated with neurocognitive and motor delay, via a proposed gain-of-function effect. We present detailed phenotypic information on seven unrelated individuals with a recurrent de novo nonsense variant (c.2737C>T [p.Arg913Ter]) in the penultimate exon of ZSWIM6 who have severe-profound intellectual disability and additional central and peripheral nervous system symptoms but an absence of frontonasal or limb malformations...
November 23, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29186466/suppression-of-mediterranean-fruit-fly-diptera-tephritidae-with-trimedlure-and-biolure-dispensers-in-coffea-arabica-gentianales-rubiaceae-in-hawaii
#11
Roger I Vargas, Steven K Souder, Pedro Rendon, Bruce Mackey
To assess the potential to suppress Mediterranean fruit fly, Ceratitis capitata (Wiedemann; Diptera: Tephritidae), via mass trapping with Trimedlure (TML), we compared fly catch (as catch per trap per time period) provided by either a novel, solid, triple-lure dispenser with TML, methyl eugenol (ME), and raspberry ketone (RK) (TMR) or solid TML plugs, both without insecticides, in addition to Biolure bait stations. Work was done in a coffee plantation that had a dense C. capitata population. Three treatments were compared: 1) TMR or TML (50 traps per ha), 2) Biolure (50 traps per ha), 3) TML (25 per ha) or TMR (25 per ha) + Biolure (25 per ha), and 4) an untreated control...
November 23, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29184758/atlantoaxial-rotatory-displacement-in-children
#12
David Spiegel, Shikshya Shrestha, Prakash Sitoula, Norma Rendon, John Dormans
AIM: To correlate the Pang and Lee class with the clinical course in a consecutive series of patients presenting with painful torticollis. METHODS: Forty-seven dynamic rotational computed tomography (CT) scans in 35 patients were classified into one of the five types defined by Pang and Li, including types I (atlantoaxial rotatopry fixation), II ("pathologic stickiness" without crossover of C1 on C2), III ("pathologic stickiness" with crossover of C1 on C2), IV (normal or muscular torticollis), and V (diagnostic grey zone)...
November 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29165397/low-computational-cost-footprint-deformities-diagnosis-sensor-through-angles-dimensions-analysis-and-image-processing-techniques
#13
J Rodolfo Maestre-Rendon, Tomas A Rivera-Roman, Juan M Sierra-Hernandez, Ivan Cruz-Aceves, Luis M Contreras-Medina, Carlos Duarte-Galvan, Arturo A Fernandez-Jaramillo
Manual measurements of foot anthropometry can lead to errors since this task involves the experience of the specialist who performs them, resulting in different subjective measures from the same footprint. Moreover, some of the diagnoses that are given to classify a footprint deformity are based on a qualitative interpretation by the physician; there is no quantitative interpretation of the footprint. The importance of providing a correct and accurate diagnosis lies in the need to ensure that an appropriate treatment is provided for the improvement of the patient without risking his or her health...
November 22, 2017: Sensors
https://www.readbyqxmd.com/read/29151127/permeability-of-hair-to-cadmium-copper-and-lead-in-five-species-of-terrestrial-mammals-and-implications-in-biomonitoring
#14
A N Rendón-Lugo, P Santiago, I Puente-Lee, L León-Paniagua
The capacity of mammal hair to absorb toxic metals and its utility in biomonitoring has been broadly studied. Though these metal-binding properties has generally been attributed to the sulphur contained in cysteine, an amino acid that forms part of keratin, there are not many experimental studies that analyze the role of sulphur in the external deposition of potentially toxic metallic elements in order to better understand the potential of hair in biomonitoring and generate better tools for differentiating between internal and external deposition of contaminants...
November 18, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29149595/sterol-oxidation-mediates-stress-responsive-vms1-translocation-to-mitochondria
#15
Jason R Nielson, Eric K Fredrickson, T Cameron Waller, Olga Zurita Rendón, Heidi L Schubert, Zhenjian Lin, Christopher P Hill, Jared Rutter
Vms1 translocates to damaged mitochondria in response to stress, whereupon its binding partner, Cdc48, contributes to mitochondrial protein homeostasis. Mitochondrial targeting of Vms1 is mediated by its conserved mitochondrial targeting domain (MTD), which, in unstressed conditions, is inhibited by intramolecular binding to the Vms1 leucine-rich sequence (LRS). Here, we report a 2.7 Å crystal structure of Vms1 that reveals that the LRS lies in a hydrophobic groove in the autoinhibited MTD. We also demonstrate that the oxidized sterol, ergosterol peroxide, is necessary and sufficient for Vms1 localization to mitochondria, through binding the MTD in an interaction that is competitive with binding to the LRS...
November 16, 2017: Molecular Cell
https://www.readbyqxmd.com/read/29142254/a-soft-selective-sweep-during-rapid-evolution-of-gentle-behaviour-in-an-africanized-honeybee
#16
Arian Avalos, Hailin Pan, Cai Li, Jenny P Acevedo-Gonzalez, Gloria Rendon, Christopher J Fields, Patrick J Brown, Tugrul Giray, Gene E Robinson, Matthew E Hudson, Guojie Zhang
Highly aggressive Africanized honeybees (AHB) invaded Puerto Rico (PR) in 1994, displacing gentle European honeybees (EHB) in many locations. Gentle AHB (gAHB), unknown anywhere else in the world, subsequently evolved on the island within a few generations. Here we sequence whole genomes from gAHB and EHB populations, as well as a North American AHB population, a likely source of the founder AHB on PR. We show that gAHB retains high levels of genetic diversity after evolution of gentle behaviour, despite selection on standing variation...
November 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/29141910/munc13-proteins-control-regulated-exocytosis-in-mast-cells
#17
Elsa M Rodarte, Marco A Ramos, Alfredo J Davalos, Daniel C Moreira, David S Moreno, Eduardo I Cardenas, Alejandro I Rodarte, Youlia Petrova, Sofia Molina, Luis E Rendon, Elizabeth Sanchez, Keegan Breaux, Alejandro Tortoriello, John Manllo, Erika A Gonzalez, Michael J Tuvim, Burton F Dickey, Alan R Burns, Ruth Heidelberger, Roberto Adachi
Mast cells (MCs) are involved in host defenses against pathogen and inflammation. Stimulated MCs release substances stored in their granules via regulated exocytosis. In other cell types, Munc13 (mammalian homolog of C. elegans uncoordinated gene 13) proteins play essential roles in regulated exocytosis. Here, we found that MCs express Munc13-2 and -4, and studied their roles using global and conditional knockout (KO) mice. In a model of systemic anaphylaxis, we found no difference between WT and Munc13-2 KO mice, but global and MC-specific Munc13-4 KO mice developed less hypothermia...
November 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29103381/histopathological-changes-in-the-liver-and-stomach-of-didelphis-virginiana-didelphimorphia-didelphidae-during-natural-infection-with-gnathostoma-turgidum-nematoda-gnathostomidae
#18
E H Torres-Montoya, J M Zazueta-Moreno, L U Osuna-Martínez, H Castillo-Ureta, G Silva-Hidalgo, H S López-Moreno, I Osuna-Ramírez, E Noguera-Corona, J G Rendón-Maldonado
Gnathostoma turgidum is a nematode parasite that exploits the stomach of Virginian opossums, Didelphis virginiana, in Latin America. The opossum is the definitive host of G. turgidum in the wild. Intrahepatic growth and maturation of the parasite, subsequent migration to the stomach and spontaneous expulsion are common. However, the histopathological lesions caused by G. turgidum are poorly described. A better understanding of the life cycle of this parasite and the pathological changes in natural host-parasite interactions could help to clarify the progression of human infections caused by Gnathostoma binucleatum...
November 6, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/29092571/comparison-between-acoustic-measurements-of-brass-instruments-and-one-dimensional-models-with-curved-wavefronts-and-transformed-axial-coordinates
#19
Felipe Orduña-Bustamante, Pablo Luis Rendón, Erika Martínez-Montejo
A progressive spherical or spheroidal wavefront approximation has previously been found to be a necessary step for a more accurate application of Webster's wave equation to rapidly flaring horns. This leads to a necessary transformation of the horn area function, from the usual flat cross-sectional area in terms of the axial coordinate, into a curved cap-like wavefront area as a function of either the axial coordinate, the arc-length coordinate along the horn profile, the leading curved wavefront coordinate, or still other possible longitudinal coordinates...
October 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29075955/prevention-and-treatment-of-thrombotic-and-hemorrhagic-complications-in-patients-supported-by-continuous-flow-left-ventricular-assist-devices
#20
REVIEW
Renzo Y Loyaga-Rendon, Milena Jani, David Fermin, Jennifer K McDermott, Diane Vancamp, Sangjin Lee
PURPOSE OF REVIEW: The purpose of this review is to describe the current knowledge in prevention and treatment of thrombotic (pump thrombosis and ischemic stroke) and bleeding (gastrointestinal and hemorrhagic stroke) complications in patients supported by continuous-flow left ventricular assist devices (CF-LVAD). RECENT FINDINGS: Left ventricular assist devices (LVADs) are now widely used for the management of end-stage heart failure. Unfortunately, in spite of the indisputable positive impact LVADs have on patients, the frequency and severity of complications are limitations of this therapy...
December 2017: Current Heart Failure Reports
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