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https://www.readbyqxmd.com/read/28340386/constructed-ils-coated-porous-magnetic-nickel-cobaltate-hexagonal-nanoplates-sensing-materials-for-the-simultaneous-detection-of-cumulative-toxic-metals
#1
Yuanyuan Dong, Lei Zhang
The different morphologies of magnetic nickel cobaltate (NiCo2O4) electrocatalysts, consisting of nanoparticles (NiCo2O4-N), nanoplates (NiCo2O4-P) and microspheres (NiCo2O4-S) were fabricated. It was found that the electrocatalytic properties of the sensing materials were strongly dependent on morphology and specific surface area. The porous NiCo2O4 hexagonal nanoplates coupled with ILs as modified materials (ILs@NiCo2O4-P) for the simultaneous determination of thallium (Tl(+)), lead (Pb(2+)) and copper (Cu(2+)), exhibited high sensitivity, long-time stability and good repeatability...
March 18, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28339276/two-dimensional-platform-for-networks-of-majorana-bound-states
#2
Michael Hell, Martin Leijnse, Karsten Flensberg
We model theoretically a two-dimensional electron gas (2DEG) covered by a superconductor and demonstrate that topological superconducting channels are formed when stripes of the superconducting layer are removed. As a consequence, Majorana bound states (MBSs) are created at the ends of the stripes. We calculate the topological invariant and energy gap of a single stripe, using realistic values for an InAs 2DEG proximitized by an epitaxial Al layer. We show that the topological gap is enhanced when the structure is made asymmetric...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28335239/a-flexible-360-degree-thermal-sound-source-based-on-laser-induced-graphene
#3
Lu-Qi Tao, Ying Liu, Zhen-Yi Ju, He Tian, Qian-Yi Xie, Yi Yang, Tian-Ling Ren
A flexible sound source is essential in a whole flexible system. It's hard to integrate a conventional sound source based on a piezoelectric part into a whole flexible system. Moreover, the sound pressure from the back side of a sound source is usually weaker than that from the front side. With the help of direct laser writing (DLW) technology, the fabrication of a flexible 360-degree thermal sound source becomes possible. A 650-nm low-power laser was used to reduce the graphene oxide (GO). The stripped laser induced graphene thermal sound source was then attached to the surface of a cylindrical bottle so that it could emit sound in a 360-degree direction...
June 7, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334624/simultaneous-monitoring-of-glucose-and-uric-acid-on-a-single-test-strip-with-dual-channels
#4
Jinhong Guo, Xing Ma
The conventional test strip has usually only one electrochemical reaction channel, which requires two times figure punctures for the self-management of patients suffering from both diabetes and gout. Considering the large number of such patients and for the sake of reducing their pains, we report an enzymatic test strip which can simultaneously monitor glucose and uric acid (UA) with only one fingertip blood droplet. The proposed test strip is composed of dual channels. The glucose in blood is detected in the 1st channel above on the substrate and the UA is characterized in the 2nd channel located at the bottom of the substrate...
March 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28334163/deltamethrin-incorporated-nets-as-an-integrated-pest-management-tool-for-the-invasive-halyomorpha-halys-hemiptera-pentatomidae
#5
T P Kuhar, B D Short, G Krawczyk, T C Leskey
Long-lasting insecticide nets (LLINs), which have insecticide incorporated within the fibers, have been widely used for control of malaria and other insect-vectored diseases. Only recently have researchers begun exploring their use for control of agricultural pests. In this study, we evaluated the toxicity of a deltamethrin-incorporated LLIN, ZeroFly (Vestergaard-Frandsen, Washington, DC) for control of the brown marmorated stink bug, Halyomorpha halys (Stål). In the lab, exposure to the ZeroFly net for 10 s resulted in >90% mortality of H...
March 6, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334107/floral-strips-attract-beneficial-insects-but-do-not-enhance-yield-in-cucumber-fields
#6
N F Quinn, D C Brainard, Z Szendrei
Natural enemies and pollinators require nutritional and habitat resources that are often not found in conventional agricultural fields. The addition of flowering plants within agroecosystems may provide the resources necessary to support beneficial insects at the local scale. We hypothesized that insect pollinator and natural enemy abundance would increase in cucumber (Cucumis sativus) plots containing flower strips and that the effect would be greatest in the crop rows closest to the flower strips. Three flower treatments were tested: 1) buckwheat (Fagopyrum esculentum), 2) yellow mustard (Brassica hirta), 3) sweet alyssum (Lobularia maritima), and cucumbers as a control...
February 22, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334066/effect-of-drive-row-ground-covers-on-hop-rosales-cannabaceae-yard-arthropod-pests-in-vermont-usa
#7
L Calderwood, J Cubins, D Vesty, H Darby
Alternatives to pesticides are necessary for the management of hop (Humulus lupulus L.) arthropod pests. The three major arthropod pests in northeastern US hop production include two-spotted spider mite, Tetranychus urticae Koch, hop aphid Phorodon humuli (Schrank), and potato leafhopper, Empoasca fabae Harris. This 3-yr study (2012-2014) in Vermont investigated the effect of flowering ground covers on arthropod pest abundance. Hop cultivars 'Nugget' and 'Cascade' were evaluated under a strip-split plot experimental design...
February 17, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28333076/a-passive-temperature-sensing-antenna-based-on-a-bimetal-strip-coil
#8
Xianwei Shi, Fan Yang, Shenheng Xu, Maokun Li
A passive temperature-sensing antenna is presented in this paper, which consists of a meandering dipole, a bimetal strip and a back cavity. The meandering dipole is divided into two parts: the lower feeding part and the upper radiating part, which maintain electric contact during operation. As a sensing component, a bimetal strip coil offers a twisting force to rotate the lower feeding part of the antenna when the temperature varies. As a result, the effective length of the dipole antenna changes, leading to a shift of the resonant frequency...
March 23, 2017: Sensors
https://www.readbyqxmd.com/read/28333045/the-manureecomine-pilot-installation-advanced-integration-of-technologies-for-the-management-of-organics-and-nutrients-in-livestock-waste
#9
Cristina Pintucci, Marta Carballa, Sam Varga, Jimena Sarli, Lai Peng, Johannes Bousek, Chiara Pedizzi, Maël Ruscalleda, Elena Tarragó, Delphine Prat, Giovanni Colica, Merijn Picavet, Joop Colsen, Oscar Benito, Marilos Balaguer, Sebastià Puig, Juan M Lema, Jesús Colprim, Werner Fuchs, Siegfried E Vlaeminck
Manure represents an exquisite mining opportunity for nutrient recovery (nitrogen and phosphorus), and for their reuse as renewable fertilisers. The ManureEcoMine proposes an integrated approach of technologies, operated in a pilot-scale installation treating swine manure (83.7%) and Ecofrit(®) (16.3%), a mix of vegetable residues. Thermophilic anaerobic digestion was performed for 150 days, the final organic loading rate was 4.6 kgCOD m(-3) d(-1), with a biogas production rate of 1.4 Nm(3) m(-3) d(-1). The digester was coupled to an ammonia side-stream stripping column and a scrubbing unit for free ammonia inhibition reduction in the digester, and nitrogen recovery as ammonium sulphate...
March 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28332745/5-ht4-receptors-facilitate-cholinergic-neurotransmission-throughout-the-murine-gastrointestinal-tract
#10
V Pauwelyn, R A Lefebvre
BACKGROUND: In the gastrointestinal tract of several species, facilitating 5-HT4 receptors were proposed on myenteric cholinergic neurons innervating smooth muscle by in vitro study of the effect of the selective 5-HT4 receptor agonist prucalopride on submaximal cholinergic contractions. This was not yet established in the murine gastrointestinal tract. METHODS: In circular smooth muscle strips from murine fundus, jejunum and colon, contractions were induced by electrical field stimulation in the presence of guanethidine, L-NAME and for colon also MRS 2500...
March 23, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28332408/trauma-and-autobiographical-memory-contents-and-determinants-of-earliest-memories-among-war-affected-palestinian-children
#11
Kirsi Peltonen, Samuli Kangaslampi, Samir Qouta, Raija-Leena Punamäki
The contents of earliest memories (EM), as part of autobiographical memory, continue to fascinate scientists and therapists. However, research is scarce on the determinants of EM, especially among children. This study aims, first, to identify contents of EM of children living in war conditions, and, second, to analyse child gender, traumatic events and mental health as determinants of the contents of EM. The participants were 240 Palestinian schoolchildren from the Gaza Strip (10-12 years, M = 11.35, SD = 0...
March 23, 2017: Memory
https://www.readbyqxmd.com/read/28332020/temperature-effects-on-the-activity-shape-and-storage-of-platelets-from-13-lined-ground-squirrels
#12
Scott Cooper, Sarah Lloyd, Anthony Koch, Xingxing Lin, Katie Dobbs, Thomas Theisen, Matt Zuberbuehler, Kaley Bernhardt, Michael Gyorfi, Tanner Tenpas, Skyler Hying, Sarah Mortimer, Christine Lamont, Marcus Lehmann, Keith Neeves
The objective of this study is to determine how a hibernating mammal avoids the formation of blood clots under periods of low blood flow. A microfluidic vascular injury model was performed to differentiate the effects of temperature and shear rate on platelet adhesion to collagen. Human and ground squirrel whole blood was incubated at 15 or 37 °C and then passed through a microfluidic chamber over a 250-µm strip of type I fibrillar collagen at that temperature and the shear rates of 50 or 300 s(-1) to simulate torpid and aroused conditions, respectively...
March 23, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28331792/advanced-micro-nanostructures-for-lithium-metal-anodes
#13
REVIEW
Rui Zhang, Nian-Wu Li, Xin-Bing Cheng, Ya-Xia Yin, Qiang Zhang, Yu-Guo Guo
Owning to their very high theoretical capacity, lithium metal anodes are expected to fuel the extensive practical applications in portable electronics and electric vehicles. However, unstable solid electrolyte interphase and lithium dendrite growth during lithium plating/stripping induce poor safety, low Coulombic efficiency, and short span life of lithium metal batteries. Lately, varies of micro/nanostructured lithium metal anodes are proposed to address these issues in lithium metal batteries. With the unique surface, pore, and connecting structures of different nanomaterials, lithium plating/stripping processes have been regulated...
March 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28331597/pollinator-population-size-and-pollination-ecosystem-service-responses-to-enhancing-floral-and-nesting-resources
#14
Johanna Häussler, Ullrika Sahlin, Charlotte Baey, Henrik G Smith, Yann Clough
Modeling pollination ecosystem services requires a spatially explicit, process-based approach because they depend on both the behavioral responses of pollinators to the amount and spatial arrangement of habitat and on the within- and between-season dynamics of pollinator populations in response to land use. We describe a novel pollinator model predicting flower visitation rates by wild central-place foragers (e.g., nesting bees) in spatially explicit landscapes. The model goes beyond existing approaches by: (1) integrating preferential use of more rewarding floral and nesting resources; (2) considering population growth over time; (3) allowing different dispersal distances for workers and reproductives; (4) providing visitation rates for use in crop pollination models...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28331366/the-effects-of-turmeric-curcumin-on-tumor-suppressor-protein-p53-and-estrogen-receptor-er%C3%AE-in-breast-cancer-cells
#15
Kelly Hallman, Katie Aleck, Brigitte Dwyer, Victoria Lloyd, Meghan Quigley, Nada Sitto, Amy E Siebert, Sumi Dinda
Curcumin (CUR) is a compound that has antibacterial, antiviral, anti-inflammatory, and anticancer properties. In this study, we have analyzed the effects of CUR on the expression of ERα and p53 in the presence of hormones and anti-hormones in breast cancer cells. Cells were cultured in a medium containing charcoal-stripped fetal bovine serum to deplete any endogenous steroids and treated with CUR at varying concentrations or in combination with hormones and anti-hormones. Protein analysis revealed a relative decrease in the levels of p53 and ERα upon treatment with 5-60 µM CUR...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28331349/antibiotic-resistance-among-helicobacter-pylori-clinical-isolates-in-lima-peru
#16
Kevin F Boehnke, Manuel Valdivieso, Alejandro Bussalleu, Rachael Sexton, Kathryn C Thompson, Soledad Osorio, Italo Novoa Reyes, John J Crowley, Laurence H Baker, Chuanwu Xi
OBJECTIVES: Gastric carcinoma is the most common cancer and cause of cancer mortality in Peru. Helicobacter pylori, a bacterium that colonizes the human stomach, is a Group 1 carcinogen due to its causal relationship to gastric carcinoma. While eradication of H. pylori can help prevent gastric cancer, characterizing regional antibiotic resistance patterns is necessary to determine targeted treatment for each region. Thus, we examined primary antibiotic resistance in clinical isolates of H...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28330984/theoretically-possible-spatial-accuracy-of-geomagnetic-maps-used-by-migrating-animals
#17
Andrei V Komolkin, Pavel Kupriyanov, Andrei Chudin, Julia Bojarinova, Kirill Kavokin, Nikita Chernetsov
Many migrating animals, belonging to different taxa, annually move across the globe and cover hundreds and thousands of kilometres. Many of them are able to show site fidelity, i.e. to return to relatively small migratory targets, from distant areas located beyond the possible range of direct sensory perception. One widely debated possibility of how they do it is the use of a magnetic map, based on the dependence of parameters of the geomagnetic field (total field intensity and inclination) on geographical coordinates...
March 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28330456/genome-wide-expression-profiling-in-leaves-and-roots-of-date-palm-phoenix-dactylifera-l-exposed-to-salinity
#18
Mahmoud W Yaish, Himanshu V Patankar, Dekoum V M Assaha, Yun Zheng, Rashid Al-Yahyai, Ramanjulu Sunkar
BACKGROUND: Date palm, as one of the most important fruit crops in North African and West Asian countries including Oman, is facing serious growth problems due to salinity, arising from persistent use of saline water for irrigation. Although date palm is a relatively salt-tolerant plant species, its adaptive mechanisms to salt stress are largely unknown. RESULTS: In order to get an insight into molecular mechanisms of salt tolerance, RNA was profiled in leaves and roots of date palm seedlings subjected to NaCl for 10 days...
March 22, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28328396/improved-medication-adherence-and-frequency-of-blood-glucose-self-testing-using-an-m-health-platform-versus-usual-care-in-a-multisite-randomized-clinical-trial-among-people-with-type-2-diabetes-in-india
#19
Nora J Kleinman, Avani Shah, Sanjiv Shah, Sanjeev Phatak, Vijay Viswanathan
BACKGROUND: In 2015, India had an estimated 69.2 million people with diabetes and a national prevalence of 8.7%. Evidence is mounting for the benefits of telemedicine in diabetes care, but remains limited on mobile-health (m-Health) interventions. INTRODUCTION: This study assessed the impact of an m-Health diabetes platform on clinical outcomes, patient-reported outcomes, patient and provider satisfaction, and app usage. MATERIALS AND METHODS: This open-label, two-arm parallel study enrolled 91 people at 3 sites in India, aged 18-65, with type 2 diabetes, and an A1c between 7...
March 6, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28327961/evaluation-of-breast-tissue-with-confocal-strip-mosaicking-microscopy-a-test-approach-emulating-pathology-like-examination
#20
Sanjee Abeytunge, Bjorg Larson, Gary Peterson, Monica Morrow, Milind Rajadhyaksha, Melissa P Murray
No abstract text is available yet for this article.
March 1, 2017: Journal of Biomedical Optics
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