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https://www.readbyqxmd.com/read/29790560/twin-mediated-epitaxial-growth-of-highly-lattice-mismatched-cu-ag-core-shell-nanowires
#1
Wei-Lun Weng, Chin-Yu Hsu, Jheng-Syun Lee, Hsin-Hsin Fan, Chien-Neng Liao
Lattice-mismatch is an important factor for the heteroepitaxial growth of core-shell nanostructures. A large lattice-mismatch usually leads to a non-coherent interface or a polycrystalline shell layer. In this study, a conformal Ag layer is coated on Cu nanowires with dense nanoscale twin boundaries through a galvanic replacement reaction. Despite a large lattice mismatch between Ag and Cu (∼12.6%), the Ag shell replicates the twinning structure in Cu nanowires and grows epitaxially on the nanotwinned Cu nanowire...
May 23, 2018: Nanoscale
https://www.readbyqxmd.com/read/29790404/clinical-and-neurophysiological-changes-after-targeted-intrathecal-injections-of-bone-marrow-stem-cells-in-a-c3-tetraplegic-subject
#2
Andrea Jimena Santamaria, Francisco D Benavides, Darcy L DiFede, Aisha Khan, Marietsy V Pujol, W Dalton Dietrich, Antonio Marttos, Barth A Green, Joshua M Hare, James Guest
High-level quadriplegia is a devastating condition with limited treatment options. Bone marrow derived stem cells (BMSCs) are reported to have immunomodulatory and neurotrophic effects in spinal cord injury (SCI). We report a subject with complete C2 SCI who received 3 anatomically targeted intrathecal infusions of BMSCs under a single-patient expanded access IND. She underwent intensive physical therapy and was followed for over 2 years. At end-point, her AIS grade improved from A to B and she recovered focal pressure touch sensation over several body areas...
May 23, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29787906/the-use-of-combined-treatments-for-reducing-parabens-in-surface-waters-ion-exchange-resin-and-nanofiltration
#3
Carmen M López-Ortiz, Irene Sentana-Gadea, Pedro Varó-Galvañ, Salvador E Maestre-Pérez, Daniel Prats-Rico
In this study, the removal of parabens from waters, using a combined treatment of magnetic ion exchange resins and subsequent filtration through nanofiltration membranes, was investigated. The selected parabens were methylparaben, ethylparaben, propylparaben and butylparaben. Two different magnetic anionic exchanger resins, MIEX® DOC and MIEX® GOLD, and two nanofiltration membranes (NF), NF-90 and DESAL-HL, were tested. The study was carried out using mono and multicomponent systems, using deionized water and natural waters sampled from two different rivers...
May 19, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29785401/rheumatoid-arthritis-and-mirnas-a-critical-review-through-a-functional-view
#4
REVIEW
Maria Cristina Moran-Moguel, Stefania Petarra-Del Rio, Evangelina E Mayorquin-Galvan, Maria G Zavala-Cerna
Rheumatoid arthritis (RA) is a systemic autoimmune disease with severe joint inflammation and destruction associated with an inflammatory environment. The etiology behind RA remains to be elucidated; most updated concepts include the participation of environmental, proteomic, epigenetic, and genetic factors. Epigenetic is considered the missing link to explain genetic diversification among RA patients. Within epigenetic factors participating in RA, miRNAs are defined as small noncoding molecules with a length of approximately 22 nucleotides, capable of gene expression modulation, either negatively through inhibition of translation and degradation of the mRNA or positively through increasing the translation rate...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/29782804/ultrathin-uniform-platinum-nanowires-via-a-facile-route-using-an-inverse-hexagonal-surfactant-phase-template
#5
Samina Akbar, Jacob Boswell, Carys Worsley, Joanne M Elliott, Adam M Squires
In this paper, we present an attractive method for the fabrication of long, straight, highly crystalline ultra-thin platinum nanowires. The fabrication is simply achieved using an inverse hexagonal (HII) lyotropic liquid crystal phase of the commercial surfactant phytantriol as a template. A platinum precursor dissolved within the cylindrical aqueous channels of the liquid crystal phase is chemically reduced by galvanic displacement using stainless steel. We demonstrate the production of nanowires using the HII phase in the phytantriol/water system which we obtain either by heating to 55 °C, or at room temperature by the addition of a hydrophobic liquid, 9-cis-tricosene, to relieve packing frustration...
May 21, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29779460/is-there-really-a-relationship-between-empathy-and-aggression-evidence-from-physiological-and-self-report-measures
#6
Carlos Gantiva, Rocio Cendales, Maite Díaz, Yesenia González
A strong relationship between empathy and aggression has traditionally been argued, but a recent meta-analysis showed that this relationship is surprisingly weak. However, none of the studies that were analyzed in the meta-analysis used physiological measures of empathy to assess differences between aggressive and nonaggressive subjects. The present study evaluated the activity of the corrugator and zygomatic muscles, galvanic skin response, and heart rate response to pictures with different social content in 30 aggressive and 30 nonaggressive subjects...
May 1, 2018: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29775098/phytofiltration-of-anaerobically-digested-sugarcane-ethanol-stillage-using-a-macrophyte-with-high-potential-for-biofuel-production
#7
Gloria Sánchez-Galván, Yanet Bolaños-Santiago
Anaerobically digested stillage (ADS) requires treatment before being discharged into water bodies or soils to avoid adverse effects. Phytofiltration systems are eco-friendly technologies for wastewater treatment, and they simultaneously serve as a source of biomass for biofuel production. The aim of the present study was to investigate the phytofiltration of ADS using Azolla sp. The effects of the ADS strength (dilutions 1: 50 and 1 : 25 v/v) and initial biomass density (IBD) [15.44 (IBD1) and 23.16 (IBD2) g dry weight (dw) m-2 ] on plant growth and pollutant removal were assessed...
July 3, 2018: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29772925/adjusted-linguistic-validation-and-psychometric-properties-of-the-colombian-version-of-kidscreen-52
#8
Mary Luz Jaimes-Valencia, Juana Perpiñá-Galvañ, Maria José Cabañero-Martínez, Julio Cabrero-García, Miguel Richart-Martínez
In health and clinical studies, health-related quality of life is often assessed using the well-established KIDSCREEN-52 questionnaires as well as the Vécu et Santé Perçue de l'Adolescent (VSP-A). The purpose of this study was twofold: to perform an adjusted linguistic validation of the Colombian version of the KIDSCREEN-52 and to assess its psychometric properties in children and adolescents. A total of 146 children and adolescents completed the KIDSCREEN-52, adolescents ( n = 48) additionally completed the VSP-A...
January 1, 2018: Journal of Child Health Care: for Professionals Working with Children in the Hospital and Community
https://www.readbyqxmd.com/read/29772804/plasmonic-nanowires-for-wide-wavelength-range-molecular-sensing
#9
Giovanni Marinaro, Gobind Das, Andrea Giugni, Marco Allione, Bruno Torre, Patrizio Candeloro, Jurgen Kosel, Enzo Di Fabrizio
In this paper, we propose the use of a standing nanowires array, constituted by plasmonic active gold wires grown on iron disks, and partially immersed in a supporting alumina matrix, for surface-enhanced Raman spectroscopy applications. The galvanic process was used to fabricate nanowires in pores of anodized alumina template, making this device cost-effective. This fabrication method allows for the selection of size, diameter, and spatial arrangement of nanowires. The proposed device, thanks to a detailed design analysis, demonstrates a broadband plasmonic enhancement effect useful for many standard excitation wavelengths in the visible and NIR...
May 17, 2018: Materials
https://www.readbyqxmd.com/read/29767500/enhanced-performance-of-field-effect-transistors-based-on-black-phosphorus-channels-reduced-by-galvanic-corrosion-of-al-over-layers
#10
Sangik Lee, Chansoo Yoon, Ji Hye Lee, Yeon Soo Kim, Mi Jung Lee, Wondong Kim, Jaeyoon Baik, Quanxi Jia, Bae Ho Park
Two-dimensional (2D) layered semiconducting materials with considerable bandgaps are emerging as a new class of materials applicable to next-generation devices. Particularly, black phosphorus (BP) is considered to be very promising for next-generation 2D electrical and optical devices due to its high carrier mobility of 200-1000 cm2 V-1 s-1 and large on/off ratio of 104 -105 in field effect transistors. However, its environmental instability in air requires fabrication processes in a glove box filled with nitrogen or argon gas followed by encapsulation, passivation, and chemical functionalization of BP...
May 16, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29765970/clinical-description-of-frontal-fibrosing-alopecia-with-concomitant-lichen-planopilaris
#11
David Saceda-Corralo, Pablo Fernández-Crehuet, Pablo Fonda-Pascual, Cristina Pindado-Ortega, Oscar M Moreno-Arrones, Sergio Vañó-Galván
No abstract text is available yet for this article.
April 2018: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29762487/simple-low-cost-fabrication-of-highly-uniform-and-reproducible-sers-substrates-composed-of-ag%C3%A2-pt-nanoparticles
#12
Tao Wang, Juhong Zhou, Yan Wang
Ag⁻Pt nanoparticles, grafted on Ge wafer, were synthesized by the galvanic replacement reaction based on their different potentials. Detailed characterization through scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDS) and X-ray photo-elelctron spectroscopy (XPS) proved that Ag⁻Pt nanoparticles are composed of large Ag nanoparticles and many small Pt nanoparticles instead of an Ag⁻Pt alloy. When applied as surface-enhanced Raman scattering (SERS) substrates to detect Rhodamine 6G (1 × 10-8 M) or Crystal violet (1 × 10-7 M) aqueous solution in the line mapping mode, all of the obtained relative standard deviation (RSD) values of the major characteristic peak intensities, calculated from the SERS spectra of 100 serial spots, were less than 10%...
May 15, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29761581/congenital-zika-syndrome-pitfalls-in-the-placental-barrier
#13
REVIEW
Nia Robinson, Evangelina E Mayorquin Galvan, Isidro G Zavala Trujillo, Maria G Zavala-Cerna
Much progress with respect to congenital Zika virus (ZIKV) pathogenesis has been achieved after the 2015 outbreak in Brazil. It is now accepted that ZIKV is vertically transmitted, infects cells of the developing central nervous system and the placenta, yet it is unclear to what extent placental affection contributes to the development of congenital ZIKV. The association between fulminant villitis and severe fetal involvement emerges as a possibility. ZIKV is unique among the Flaviviruses in its ability to be sexually transmitted, possibly responsible for its teratogenicity...
May 15, 2018: Reviews in Medical Virology
https://www.readbyqxmd.com/read/29758608/glass-transition-of-soft-colloids
#14
Adrian-Marie Philippe, Domenico Truzzolillo, Julian Galvan-Myoshi, Philippe Dieudonné-George, Véronique Trappe, Ludovic Berthier, Luca Cipelletti
We explore the glassy dynamics of soft colloids using microgels and charged particles interacting by steric and screened Coulomb interactions, respectively. In the supercooled regime, the structural relaxation time τ_{α} of both systems grows steeply with volume fraction, reminiscent of the behavior of colloidal hard spheres. Computer simulations confirm that the growth of τ_{α} on approaching the glass transition is independent of particle softness. By contrast, softness becomes relevant at very large packing fractions when the system falls out of equilibrium...
April 2018: Physical Review. E
https://www.readbyqxmd.com/read/29758425/blood-cadmium-determinants-among-males-over-forty-living-in-mexico-city
#15
Luisa Torres-Sánchez, Ruth A Vázquez-Salas, Adylenne Vite, Marcia Galván-Portillo, Mariano E Cebrián, Ana Perla Macias-Jiménez, Camilo Ríos, Sergio Montes
BACKGROUND: Mexico City has air, water and food pollution problems; however, human exposure to cadmium and its sources have not been described. OBJECTIVES: To determine the blood cadmium (BCd) level and its main exposure sources among males aged 40 years or older living in different areas of Mexico City. METHODS: After receiving informed consent, we interviewed 702 males aged ≥40 years to collect data on their sociodemographic characteristics, lifetime occupation, smoking history, and dietary habits, using a validated questionnaire...
May 11, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29757288/synthesis-of-platinum-nickel-nanowires-and-optimization-for-oxygen-reduction-performance
#16
Shaun M Alia, Bryan S Pivovar
Platinum-nickel (Pt-Ni) nanowires were developed as fuel cell electrocatalysts, and were optimized for the performance and durability in the oxygen reduction reaction. Spontaneous galvanic displacement was used to deposit Pt layers onto Ni nanowire substrates. The synthesis approach produced catalysts with high specific activities and high Pt surface areas. Hydrogen annealing improved Pt and Ni mixing and specific activity. Acid leaching was used to preferentially remove Ni near the nanowire surface, and oxygen annealing was used to stabilize near-surface Ni, improving durability and minimizing Ni dissolution...
April 27, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29750195/utilizing-sensory-prediction-errors-for-movement-intention-decoding-a-new-methodology
#17
Gowrishankar Ganesh, Keigo Nakamura, Supat Saetia, Alejandra Mejia Tobar, Eiichi Yoshida, Hideyuki Ando, Natsue Yoshimura, Yasuharu Koike
We propose a new methodology for decoding movement intentions of humans. This methodology is motivated by the well-documented ability of the brain to predict sensory outcomes of self-generated and imagined actions using so-called forward models. We propose to subliminally stimulate the sensory modality corresponding to a user's intended movement, and decode a user's movement intention from his electroencephalography (EEG), by decoding for prediction errors-whether the sensory prediction corresponding to a user's intended movement matches the subliminal sensory stimulation we induce...
May 2018: Science Advances
https://www.readbyqxmd.com/read/29748513/a-case%C3%A2-control-study-of-socio-economic-and-nutritional-characteristics-as-determinants-of-dental-caries-in-different-age-groups-considered-as-public-health-problem-data-from-nhanes-2013%C3%A2-2014
#18
Laura A Zanella-Calzada, Carlos E Galván-Tejada, Nubia M Chávez-Lamas, Ma Del Carmen Gracia-Cortés, Arturo Moreno-Báez, Jose G Arceo-Olague, Jose M Celaya-Padilla, Jorge I Galván-Tejada, Hamurabi Gamboa-Rosales
One of the principal conditions that affects oral health worldwide is dental caries, occurring in about 90% of the global population. This pathology has been considered a challenge because of its high prevalence, besides being a chronic but preventable disease which can be caused by a series of different demographic, dietary" among others. Based on this problem, in this research a demographic and dietary features analysis is performed for the classification of subjects according to their oral health status based on caries, according to the age group where the population belongs, using as feature selector a technique based on fast backward selection (FBS) approach for the development of three predictive models, one for each age range (group 1: 10⁻19; group 2: 20⁻59; group 3: 60 or more years old)...
May 10, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29745799/sweat-from-gland-to-skin-surface-production-transport-and-skin-absorption
#19
Nicola Margaret Gerrett, Katy E Griggs, Bernard Redortier, Thomas Voelcker, Narihiko Kondo, George Havenith
By combining galvanic skin conductance (GSC), stratum corneum hydration (HYD) and regional surface sweat rate (RSR) measurements at the arm, thigh, back and chest, we closely monitored the passage of sweat from gland to skin surface. Through a varied exercise-rest protocol, sweating was increased slowly and decreased in 16 male and female human participants (25.3 {plus minus} 4.7 yrs, 174.6 {plus minus} 10.1 cm, 71.3 {plus minus} 12.0 kg, 53.0 {plus minus} 6.8 ml∙kg∙min-1 ). ∆GSC and HYD increased prior to RSR, indicating pre-secretory sweat gland activity and skin hydration...
May 10, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29742302/transcriptomic-analysis-of-skin-pigmentation-variation-in-the-virginia-opossum-didelphis-virginiana
#20
Sergio F Nigenda-Morales, Yibo Hu, James Beasley, Hugo A Ruiz-Piña, David Valenzuela-Galván, Robert K Wayne
Skin and coat pigmentation are two of the best-studied examples of traits under natural selection given their quantifiable fitness interactions with the environment (e.g. camouflage) and signaling with other organisms (e.g. warning coloration). Previous morphological studies have found that skin pigmentation variation in the Virginia opossum (Didelphis virginiana) is associated with variation in precipitation and temperatures across its distribution range following Gloger's rule (lighter pigmentation in temperate environments)...
May 9, 2018: Molecular Ecology
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