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https://www.readbyqxmd.com/read/29165397/low-computational-cost-footprint-deformities-diagnosis-sensor-through-angles-dimensions-analysis-and-image-processing-techniques
#1
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/29163348/intermediate-latency-evoked-potentials-of-multimodal-cortical-vestibular-areas-galvanic-stimulation
#2
Stefan Kammermeier, Arun Singh, Kai Bötzel
Introduction: Human multimodal vestibular cortical regions are bilaterally anterior insulae and posterior opercula, where characteristic vestibular-related cortical potentials were previously reported under acoustic otolith stimulation. Galvanic vestibular stimulation likely influences semicircular canals preferentially. Galvanic stimulation was compared to previously established data under acoustic stimulation. Methods: 14 healthy right-handed subjects, who were also included in the previous acoustic potential study, showed normal acoustic and galvanic vestibular-evoked myogenic potentials...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29160799/-25-a-similarity-analysis-of-audio-signal-to-develop-a-human-activity-recognition-using-similarity-networks
#3
Alejandra García-Hernández, Carlos E Galván-Tejada, Jorge I Galván-Tejada, José M Celaya-Padilla, Hamurabi Gamboa-Rosales, Perla Velasco-Elizondo, Rogelio Cárdenas-Vargas
Human Activity Recognition (HAR) is one of the main subjects of study in the areas of computer vision and machine learning due to the great benefits that can be achieved. Examples of the study areas are: health prevention, security and surveillance, automotive research, and many others. The proposed approaches are carried out using machine learning techniques and present good results. However, it is difficult to observe how the descriptors of human activities are grouped. In order to obtain a better understanding of the the behavior of descriptors, it is important to improve the abilities to recognize the human activities...
November 21, 2017: Sensors
https://www.readbyqxmd.com/read/29160793/a-gal-m%C3%A2%C2%B5s-device-to-evaluate-cell-migratory-response-to-combined-galvano-chemotactic-fields
#4
Shawn Mishra, Maribel Vazquez
Electric fields have been studied extensively in biomedical engineering (BME) for numerous regenerative therapies. Recent studies have begun to examine the biological effects of electric fields in combination with other environmental cues, such as tissue-engineered extracellular matrices (ECM), chemical gradient profiles, and time-dependent temperature gradients. In the nervous system, cell migration driven by electrical fields, or galvanotaxis, has been most recently studied in transcranial direct stimulation (TCDS), spinal cord repair and tumor treating fields (TTF)...
November 21, 2017: Biosensors
https://www.readbyqxmd.com/read/29158977/the-sensitivity-of-the-yeast-saccharomyces-cerevisiae-to-acetic-acid-is-influenced-by-dom34-and-rpl36a
#5
Bahram Samanfar, Kristina Shostak, Houman Moteshareie, Maryam Hajikarimlou, Sarah Shaikho, Katayoun Omidi, Mohsen Hooshyar, Daniel Burnside, Imelda Galván Márquez, Tom Kazmirchuk, Thet Naing, Paula Ludovico, Anna York-Lyon, Kama Szereszewski, Cindy Leung, Jennifer Yixin Jin, Rami Megarbane, Myron L Smith, Mohan Babu, Martin Holcik, Ashkan Golshani
The presence of acetic acid during industrial alcohol fermentation reduces the yield of fermentation by imposing additional stress on the yeast cells. The biology of cellular responses to stress has been a subject of vigorous investigations. Although much has been learned, details of some of these responses remain poorly understood. Members of heat shock chaperone HSP proteins have been linked to acetic acid and heat shock stress responses in yeast. Both acetic acid and heat shock have been identified to trigger different cellular responses including reduction of global protein synthesis and induction of programmed cell death...
2017: PeerJ
https://www.readbyqxmd.com/read/29158118/measuring-physiological-responses-to-the-arts-in-people-with-a-dementia
#6
REVIEW
George E C Thomas, Sebastian Crutch, Paul M Camic
The dementias are a group of progressive symptoms that have multiple causes, usually caused by disease or injury of the brain, affecting higher brain functions such as language, perception, memory, reasoning and mood; they can also be associated with changes in personality. Arts interventions and interaction with the arts can create meaningful, positive experiences for people with a dementia, as well as improve quality of life. Qualitative research in particular, has been able to describe the emotional responses the arts can produce, but quantifiable changes have not been well documented...
November 17, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29157992/complications-associated-with-the-techniques-for-anterior-cruciate-ligament-reconstruction-in-patients-under-18-years-old-a-systematic-review
#7
W Tovar-Cuellar, F Galván-Villamarín, J Ortiz-Morales
OBJECTIVE: Determine the complications related to the different techniques for anterior cruciate ligament reconstruction in patients under 18 years old. METHODOLOGY: Systematic review using the databases Medline, Cochrane Database of Systematic Reviews and Embase (until July 2016), additional studies were included conducting a search of the references of previous studies. The terms included in the search were: «cruciate», «ligament», «anterior», «immature», «complications», «outcome», «acl reconstruction»,« cruciate ligament anterior reconstruction», «children», «child», «infants», «adolescent», «open physis», «growth plate» and «skeletally immature»...
November 17, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/29153945/cu-pd-core-shell-nanostructures-for-highly-sensitive-and-selective-amperometric-analysis-of-histamine
#8
Rajendra Kumar Reddy Gajjala, Suresh Kumar Palathedath
We demonstrate a facile and rapid methodology for preparation of Cu@Pd core-shell nanostructures on a cost-effective pencil graphite substrate. Galvanic replacement reaction was carried out for palladium modification on template electrodeposited copper nanostructures on pencil graphite substrate. The nanostructures are shown to be very stable with excellent electrocatalytic activities. Under optimised conditions, they could be used for histamine sensing at a very low oxidation potential of +0.55V vs. Ag/AgCl...
November 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29144733/a-mechanism-for-symmetry-breaking-and-shape-control-in-single-crystal-gold-nanorods
#9
Michael J Walsh, Wenming Tong, Hadas Katz-Boon, Paul Mulvaney, Joanne Etheridge, Alison M Funston
The phenomenon of symmetry breaking-in which the order of symmetry of a system is reduced despite manifest higher-order symmetry in the underlying fundamental laws-is pervasive throughout science and nature, playing a critical role in fields ranging from particle physics and quantum theory to cosmology and general relativity. For the growth of crystals, symmetry breaking is the crucial step required to generate a macroscopic shape that has fewer symmetry elements than the unit cell and/or seed crystal from which it grew...
November 16, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29140282/magnetic-material-assessment-of-a-novel-ultra-high-step-up-converter-with-single-semiconductor-switch-and-galvanic-isolation-for-fuel-cell-power-system
#10
Chih-Lung Shen, Heng Liou
In this paper, a novel step-up converter is proposed, which has the particular features of single semiconductor switch, ultra-high conversion ratio, galvanic isolation, and easy control. Therefore, the proposed converter is suitable for the applications of fuel-cell power system. Coupled inductors and switched capacitors are incorporated in the converter to obtain an ultra-high voltage ratio that is much higher than that of a conventional high step-up converter. Even if the turns ratio of coupled inductor and duty ratio are only to be 1 and 0...
November 15, 2017: Materials
https://www.readbyqxmd.com/read/29137970/dietary-patterns-in-mexican-children-and-adolescents-characterization-and-relation-with-socioeconomic-and-home-environment-factors
#11
Marcia Galvan-Portillo, Emanny Sánchez, Luz Mery Cárdenas-Cárdenas, Roberto Karam, Luz Claudio, Miguel Cruz, Ana I Burguete-García
BACKGROUND: Eating habits in children and adolescents are influenced by multiple determinants, which include socioeconomic and home environmental factors. OBJECTIVE: To characterize the dietary patterns in Mexican children and adolescents and to assess its association with socioeconomic and home environmental factors. METHODS: A cross-sectional study was conducted in 878 children and adolescents aged 5-15 years, unrelated, selected randomly from Morelos Sports Unit at north of Mexico City...
November 11, 2017: Appetite
https://www.readbyqxmd.com/read/29131508/an-interactive-computer-lab-of-the-galvanic-cell-for-students-in-biochemistry
#12
Emma Ahlstrand, Antoine Buetti-Dinh, Ran Friedman
We describe an interactive module that can be used to teach basic concepts in electrochemistry and thermodynamics to first year natural science students. The module is used together with an experimental laboratory and improves the students' understanding of thermodynamic quantities such as Δr G, Δr H, and Δr S that are calculated but not directly measured in the lab. We also discuss how new technologies can substitute some parts of experimental chemistry courses, and improve accessibility to course material...
November 13, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/29128927/toll-like-receptors-participate-in-naegleria-fowleri-recognition
#13
Moisés Martínez-Castillo, Leopoldo Santos-Argumedo, José Manuel Galván-Moroyoqui, Jesús Serrano-Luna, Mineko Shibayama
Naegleria fowleri is a protozoan that invades the central nervous system and causes primary amoebic meningoencephalitis. It has been reported that N. fowleri induces an important inflammatory response during the infection. In the present study, we evaluated the roles of Toll-like receptors in the recognition of N. fowleri trophozoites by human mucoepithelial cells, analyzing the expression and production of innate immune response mediators. After amoebic interactions with NCI-H292 cells, the expression and production levels of IL-8, TNF-α, IL-1β, and human beta defensin-2 were evaluated by RT-PCR, ELISA, immunofluorescence, and dot blot assays, respectively...
November 11, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29126469/high-reliable-and-robust-ultrathin-layer-gold-coating-porous-silver-substrate-via-galvanic-free-deposition-for-solid-phase-microextraction-coupled-with-surface-enhanced-raman-spectroscopy
#14
Weiwei Bian, Zhen Liu, Gang Lian, Le Wang, Qilong Wang, Jinhua Zhan
That intense demand for both high sensitivity and high reliability has been a key factor strengthening the surface enhanced Raman spectroscopy (SERS) in the analytical application, particular in the hyphenation with pre-concentration technique. Credible data acquisition and processing is very dependent on the stable and uniform performance of SERS-active substrate. Here, a reliable and uniform ultrathin-layer Au was proposed for protecting the porous Ag fiber (porous Ag@Au) and applied in the solid phase microextraction coupled with SERS...
November 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29124680/the-antiepileptic-drug-levetiracetam-protects-against-quinolinic-acid-induced-toxicity-in-the-rat-striatum
#15
Maricela Dircio-Bautista, Ana Laura Colín-González, Gabriela Aguilera, Marisol Maya-López, Juana Villeda-Hernández, Sonia Galván-Arzate, Esperanza García, Isaac Túnez, Abel Santamaría
Levetiracetam (LVT) is a relatively novel antiepileptic drug (AED) known to act through binding with the synaptic vesicular 2A (SV2A) protein, thus modulating the presynaptic neurotransmitter release. The tryptophan metabolite quinolinic acid (QUIN) acts as an excitotoxin when its brain concentrations reach toxic levels under pathological conditions. Since increased neuronal excitability induced by QUIN recruits degenerative events in the brain, and novel AED is also expected to exert neuroprotective effects in their pharmacological profiles, in this work the effect of LVT (54 mg/kg, i...
November 9, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/29122384/strengthening-global-vaccine-access-for-adolescents-and-adults
#16
REVIEW
Angeline Nanni, Stefanie Meredith, Stephanie Gati, Karin Holm, Tom Harmon, Ann Ginsberg
Global immunization efforts to date have heavily focused on infants and children, with noted success on public health. Healthy adolescents and adults contribute to the economic growth and development of countries but efforts to ensure vaccine coverage for these groups receive inadequate global attention and resources. Emerging epidemics for a number of infectious diseases including Ebola, Zika, dengue, malaria and the continuing epidemics of tuberculosis and several sexually transmitted infections, including HIV, HPV and Hepatitis B, have high incidence and prevalence in adolescents and adults...
November 6, 2017: Vaccine
https://www.readbyqxmd.com/read/29118219/nonhuman-primate-optogenetics-recent-advances-and-future-directions
#17
Adriana Galvan, William R Stauffer, Leah Acker, Yasmine El-Shamayleh, Ken-Ichi Inoue, Shay Ohayon, Michael C Schmid
Optogenetics is the use of genetically coded, light-gated ion channels or pumps (opsins) for millisecond resolution control of neural activity. By targeting opsin expression to specific cell types and neuronal pathways, optogenetics can expand our understanding of the neural basis of normal and pathological behavior. To maximize the potential of optogenetics to study human cognition and behavior, optogenetics should be applied to the study of nonhuman primates (NHPs). The homology between NHPs and humans makes these animals the best experimental model for understanding human brain function and dysfunction...
November 8, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29116775/elucidating-the-methylammonium-ma-conformation-in-mapbbr3-perovskite-with-application-in-solar-cells
#18
Carlos A López, María Victoria Martínez-Huerta, María Consuelo Alvarez-Galván, Paula Kayser, Patricia Gant, Andres Castellanos-Gomez, María T Fernández-Díaz, Francois Fauth, José A Alonso
Hybrid organic-inorganic perovskites, MAPbX3 (X = halogen), containing methylammonium (MA: CH3-NH3(+)) in the large voids conformed by the PbX6 octahedral network, are the active absorption materials in the new generation of solar cells. CH3NH3PbBr3 is a promising member with a large band gap that gives rise to a high open circuit voltage. A deep knowledge of the crystal structure and, in particular, the MA conformation inside the perovskite cage across the phase transitions undergone below room temperature, seems essential to establish structure-property correlations that may drive to further improvements...
November 8, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29114872/racism-in-trump-s-america-reflections-on-culture-sociology-and-the-2016-us-presidential-election
#19
Lawrence D Bobo
Despite much positive change in the post civil rights era, U.S. notions of racism and white supremacy remain powerful elements of American culture. The adaptability and enduring power of these forces can be seen in the emergence of a new historical epoch best describe as the era of Laissez Faire Racism. Prevalent attitudes among white Americans, certain theoretical arguments and hypotheses in American sociology, as well the election of Donald Trump rest upon the on-going operation of racism. In particular, I attribute Trump's electoral success to three critical dilemmas of race that defined contours of the 2016 presidential election: (1) worsening economic inequality in the presence of rapidly changing ethno-racial demography; (2) intensified political partisanship in the presence of well-institutionalized racially coded campaign strategies and rhetoric; and (3) the failure of the Clinton campaign to simultaneously champion the interests of working and middle class families and galvanize the previously powerful multiracial Obama coalition...
November 2017: British Journal of Sociology
https://www.readbyqxmd.com/read/29113518/functional-semi-blind-source-separation-identifies-primary-motor-area-without-active-motor-execution
#20
Camillo Porcaro, Carlo Cottone, Andrea Cancelli, Carlo Salustri, Franca Tecchio
High time resolution techniques are crucial for investigating the brain in action. Here, we propose a method to identify a section of the upper-limb motor area representation (FS_M1) by means of electroencephalographic (EEG) signals recorded during a completely passive condition (FS_M1bySS). We delivered a galvanic stimulation to the median nerve and we applied to EEG the semi-Blind Source Separation (s-BSS) algorithm named Functional Source Separation (FSS). In order to prove that FS_M1bySS is part of FS_M1, we also collected EEG in a motor condition, i...
September 11, 2017: International Journal of Neural Systems
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