keyword
MENU ▼
Read by QxMD icon Read
search

Sense

keyword
https://www.readbyqxmd.com/read/29161677/nanotechnology-based-recent-approaches-for-sensing-and-remediation-of-pesticides
#1
REVIEW
Deepak Rawtani, Nitasha Khatri, Sanjiv Tyagi, Gaurav Pandey
Pesticides are meant to control and destroy the pests and weeds. They are classified into different categories on the basis their origin and type of pest they target. Chemical pesticides such as insecticides, herbicides and fungicides are commonly used in agricultural fields. However, the excessive use of these agrochemicals have adverse effects on environment such as reduced population of insect pollinators, threat to endangered species and habitat of birds. Upon consumption; chemical pesticides also cause various health issues such as skin, eye and nervous system related problems and cancer upon prolonged exposure...
November 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29161560/immunity-insect-immune-memory-goes-viral
#2
Petros Ligoxygakis
Adaptive memory in insect immunity has been controversial. In this issue, Andino and co-workers propose that acquisition of viral sequences in the host genome gives rise to anti-sense, anti-viral piRNAs. Such sequences can be regarded as both a genomic archive of past infections and as an armour of potential heritable memory.
November 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29161502/polarization-multiplexing-of-fluorescent-emission-using-multi-resonant-plasmonic-antennas
#3
Eva De Leo, Ario Cocina, Preksha Tiwari, Lisa V Poulikakos, Patricia Marqués-Gallego, Boris leFeber, David J Norris, Ferry Prins
Combining the ability to localize electromagnetic fields at the nanoscale with a directional response, plasmonic antennas offer an effective strategy to shape the far-field pattern of coupled emitters. Here, we introduce a family of directional multi-resonant antennas that allows for polarization-resolved spectral identification of fluorescent emission. The geometry consists of a central aperture surrounded by concentric polygonal corrugations. By varying the periodicity of each axis of the polygon individually, this structure can support multiple resonances that provide independent control over emission directionality for multiple wavelengths...
November 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/29161459/ageing-impairs-parasite-specific-antibody-responses-in-cystic-echinococcosis
#4
Gustavo Mourglia-Ettlin, Sebastián Miles, Ana Hernández, Sylvia Dematteis
Humoral immunity wanes during healthy ageing, increasing susceptibility to infections in the elderly. In this sense, information about parasite infections and human immunosenescence is scarce. Cystic echinococcosis (CE) is an infectious disease caused by the larval stage of the cestode parasite Echinococcus granulosus, whose prevalence in humans shows an increase with host age. Susceptibility to human CE has been associated with humoral immunity to some extent; and therefore, we have here analyzed the influence of host age on the serological profile of young, middle-aged, and aged patients...
November 21, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/29161457/the-soluble-guanylate-cyclase-cyg12-is-required-for-the-acclimation-to-hypoxia-and-trophic-regimes-in-chlamydomonas-reinhardtii
#5
Melis Düner, Jan Lambertz, Carolin Mügge, Anja Hemschemeier
Oxygenic phototrophs frequently encounter environmental conditions that result in intracellular energy crises. Growth of the unicellular green alga Chlamydomonas reinhardtii in hypoxia in the light depends on acclimatory responses of which the induction of photosynthetic cyclic electron flow is essential. The microalga cannot grow in the absence of molecular oxygen (O2 ) in the dark, although it possesses an elaborate fermentation metabolism. Not much is known about how the microalga senses and signals the lack of O2 or about its survival strategies during energy crises...
November 21, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29161264/proprioceptive-assessment-in-clinical-settings-evaluation-of-joint-position-sense-in-upper-limb-post-stroke-using-a-robotic-manipulator
#6
Sara Contu, Asif Hussain, Simone Kager, Aamani Budhota, Vishwanath A Deshmukh, Christopher W K Kuah, Lester H L Yam, Liming Xiang, Karen S G Chua, Lorenzo Masia, Domenico Campolo
Proprioception is a critical component for motor functions and directly affects motor learning after neurological injuries. Conventional methods for its assessment are generally ordinal in nature and hence lack sensitivity. Robotic devices designed to promote sensorimotor learning can potentially provide quantitative precise, accurate, and reliable assessments of sensory impairments. In this paper, we investigate the clinical applicability and validity of using a planar 2 degrees of freedom robot to quantitatively assess proprioceptive deficits in post-stroke participants...
2017: PloS One
https://www.readbyqxmd.com/read/29161156/sense-of-community-among-female-residents-of-a-trauma-informed-sober-living-home
#7
Katie M Edwards, Ellen E Haynes, Kelly M Palmer, Sharon Murphy
BACKGROUND: Substance use disorders (SUDs) and domestic and/or sexual violence (DSV) co-occur at high rates. Although some studies have examined sober living homes (SLHs), no research to date has evaluated SLHs specifically designed for women with histories of SUDS and DSV. OBJECTIVE: The purpose of this article is to present data from an exploratory analysis of the association between sense of community (SOC) and mental health symptoms within a unique trauma-informed and gender-responsive SLH (i...
November 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/29161018/self-powered-biosensors
#8
Matteo Grattieri, Shelley D Minteer
Self-powered electrochemical biosensors utilize biofuel cells as a simultaneous power source and biosensor, which simplifies the biosensor system, because it no longer requires a potentiostat, power for the potentiostat, and/or power for the signaling device. This Review article is focused on detailing the advances in the field of self-powered biosensors and discussing their advantages and limitations compared to other types of electrochemical biosensors. The review will discuss self-powered biosensors formed from enzymatic biofuel cells, organelle-based biofuel cells, and microbial fuel cells...
November 21, 2017: ACS Sensors
https://www.readbyqxmd.com/read/29161007/polymer-based-technologies-for-sensing-applications
#9
Wildemar Stefanio Pereira Carvalho, Menglian Wei, Nduka Ikpo, Yongfeng Gao, Michael J Serpe
Reports in the literature on the development of new chemical sensing technologies have been growing steadily in number for years. For example, a Web of Science topic search using the term "Chemical Sensing" revealed that over 8,000 papers were published in 2015-2017, with over 40,000 citations to those papers. In this review, we focus on highlighting recent examples of chemical sensing related to human health (e.g., disease diagnosis, health monitoring, and water/food safety), and for environmental monitoring...
November 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29160869/an-electrochemical-microrna-sensing-platform-based-on-tungsten-diselenide-nanosheets-and-competitive-rna-rna-hybridization
#10
Ying-Xu Chen, Wen-Jing Zhang, Ke-Jing Huang, Mingbo Zheng, Ya-Cen Mao
In this work, we report an ultrasensitive electrochemical biosensor for microRNA-21 (miRNA-21) detection by using a competitive RNA-RNA hybridization configuration. A biotinylated miRNA of the self-same sequence with the target miRNA is mixed with the samples, and allowed competition with the target miRNA for a thiolated RNA probe immobilized onto a tungsten diselenide (WSe2) nanosheet modified electrode. Thereafter the current response is obtained by forming the hybridized biotinylated miRNA with streptavidin-horseradish peroxidase (HRP) conjugates to catalyze the H2O2 + hydroquinone (HQ) system...
November 21, 2017: Analyst
https://www.readbyqxmd.com/read/29160860/self-assembled-inas-nanowires-as-optical-reflectors
#11
Francesco Floris, Lucia Fornasari, Andrea Marini, Vittorio Bellani, Francesco Banfi, Stefano Roddaro, Daniele Ercolani, Mirko Rocci, Fabio Beltram, Marco Cecchini, Lucia Sorba, Francesco Rossella
Subwavelength nanostructured surfaces are realized with self-assembled vertically-aligned InAs nanowires, and their functionalities as optical reflectors are investigated. In our system, polarization-resolved specular reflectance displays strong modulations as a function of incident photon energy and angle. An effective-medium model allows one to rationalize the experimental findings in the long wavelength regime, whereas numerical simulations fully reproduce the experimental outcomes in the entire frequency range...
November 21, 2017: Nanomaterials
https://www.readbyqxmd.com/read/29160834/underlying-physics-of-conductive-polymer-composites-and-force-sensing-resistors-fsrs-a-study-on-creep-response-and-dynamic-loading
#12
Leonel Paredes-Madrid, Arnaldo Matute, Jorge O Bareño, Carlos A Parra Vargas, Elkin I Gutierrez Velásquez
Force Sensing Resistors (FSRs) are manufactured by sandwiching a Conductive Polymer Composite (CPC) between metal electrodes. The piezoresistive property of FSRs has been exploited to perform stress and strain measurements, but the rheological property of polymers has undermined the repeatability of measurements causing creep in the electrical resistance of FSRs. With the aim of understanding the creep phenomenon, the drift response of thirty two specimens of FSRs was studied using a statistical approach. Similarly, a theoretical model for the creep response was developed by combining the Burger's rheological model with the equations for the quantum tunneling conduction through thin insulating films...
November 21, 2017: Materials
https://www.readbyqxmd.com/read/29160821/a-portable-stiffness-measurement-system
#13
Onejae Sul, Eunsuk Choi, Seung-Beck Lee
A new stiffness measurement method is proposed that utilizes the lateral deformation profile of an object under indentation. The system consists of a force measurement module between a pair of equidistant touch sensing modules. Unique feature of the method is that by adjusting the touch module separation, indenter protrusion, and spring constant of the force sensing module, one can choose a desired sensing range for the force module. This feature helps to enhance the stiffness differentiation between objects of similar hardness and avoids measurement saturation...
November 21, 2017: Sensors
https://www.readbyqxmd.com/read/29160709/2d-ir-spectroscopy-of-an-aha-labelled-photoswitchable-pdz2-domain
#14
Brigitte Stucki-Buchli, Philip J M Johnson, Olga Bozovic, Claudio Zanobini, Klemens L Koziol, Peter Hamm, Adnan Gulzar, Steffen Wolf, Sebastian Buchenberg, Gerhard Stock
We explore the capability of the non-natural amino acid azidohomoalanine (AHA) as an IR label to sense relatively small structural changes in proteins with the help of 2D IR difference spectroscopy. To that end, we AHA-labelled an allosteric protein (the PDZ2 domain from human tyrosine-phosphatase 1E) and furthermore covalently linked it to an azobenzene-derived photoswitch as to mimic its conformational transition upon ligand binding. To determine the strengths and limitations of the AHA label, in total six mutants have been investigated with the label at sites with varying properties...
November 21, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29160694/quick-and-selective-dual-mode-detection-of-h2s-gas-by-mobile-app-employing-silver-nanorods-array
#15
Shashank Kumar Gahlaut, Kavita Yadav, Chandrashekhar Sharan, Jitendra Pratap Singh
Hydrogen sulfide (H2S) is a hazardous gas, which not only harms living beings but also poses a significant risk to damage materials placed in culture and art museums, due to its corrosive nature. We demonstrate a novel approach for selective rapid detection of H2S gas using silver nanorods (AgNRs) array on glass substrate at ambient conditions. The arrays were prepared by glancing angle deposition method. The colorimetric and water wetting properties of as-fabricated arrays were found to be highly sensitive towards the sulfurization, in the presence of H2S gas with a minimal concentration in ppm range...
November 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29160557/the-complex-trauma-inventory-a-self-report-measure-of-posttraumatic-stress-disorder-and-complex-posttraumatic-stress-disorder
#16
Justin M Litvin, Patricia L Kaminski, Shelley A Riggs
The work group revising the criteria for trauma-related disorders in the International Classification of Diseases (ICD-11) made several changes. Specifically, they simplified the criteria for posttraumatic stress disorder (PTSD) and added a new trauma disorder called complex PTSD (CPTSD). These proposed changes to taxonomy require new instruments to assess these novel constructs. We developed a measure of PTSD and CPTSD (the Complex Trauma Inventory; CTI) according to the proposed domains, creating several items to assess each domain...
November 21, 2017: Journal of Traumatic Stress
https://www.readbyqxmd.com/read/29160407/oral-problems-and-self-confidence-in-preschool-children
#17
Monalisa Cesarino Gomes, Matheus França Perazzo, Érick Tássio Neves, Carolina Castro Martins, Saul Martins Paiva, Ana Flávia Granville-Garcia
The aim of the present study was to evaluate the impact of clinical oral factors, socioeconomic factors and parental sense of coherence on affected self-confidence in preschool children due to oral problems. A cross-sectional study with probabilistic sampling was conducted at public and private preschools with 769 five-year-old children and their parents/caretakers. A questionnaire addressing socio-demographic characteristics as well as the Scale of Oral Health Outcomes for Five-Year-Old Children (SOHO-5) and the Sense of Coherence Scale (SOC-13) were administered...
July 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29160331/primum-non-nocere-or-primum-facere-meliorem-hacking-the-brain-in-the-21st-century
#18
Lucas Borrione, Andre R Brunoni
Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that modulates cortical excitability. It is devoid of serious adverse events and exerts variable effects on cognition, with several research findings suggesting that it can improve memory, verbal and mathematical skills. Because tDCS devices are low-cost, portable and relatively easy to assemble, they have become available outside of the medical setting and used for non-medical ("cosmetic") purposes by laypersons. In this sense, tDCS has become a popular technique aiming to improve cognition and the achievement of a better performance not only at work, but also in other fields such as sports, leisure activities (video games) and even the military...
November 13, 2017: Trends in Psychiatry and Psychotherapy
https://www.readbyqxmd.com/read/29160326/controlling-graphene-plasmons-with-a-zero-index-metasurface
#19
Lihui Lin, Yanxin Lu, Mengmeng Yuan, Fenghua Shi, Haixia Xu, Yihang Chen
Graphene plasmons, owing to their diverse applications including electro-optical modulation, optical sensing, spectral photometry and tunable lighting at the nanoscale, have recently attracted much attention. One key challenge in advancing this field is to precisely control the propagation of graphene plasmons. Here, we propose an on-chip integrated platform to engineer the wave front of the graphene plasmons through a metasurface with a refractive index of zero. We demonstrate that a well-designed graphene/photonic-crystal metasurface can possess conical plasmonic dispersion at the Brillouin zone center with a triply degenerate state at the Dirac frequency, giving rise to the zero-effective-index of graphene plasmons...
November 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/29160227/enhanced-green-upconversion-luminescence-in-zno-er3-yb3-on-mo6-co-doping-for-temperature-sensor-application
#20
R Anjana, Subha P P, Kurias K Markose, Madambi K Jayaraj
Erbium (Er) doped zinc oxide (ZnO) powder was prepared using co-precipitation method. Effect of ytterbium (Yb) and molybdenum (Mo) co-doping on upconversion emission was studied. The emission intensity has been enhanced on Yb co-doping due to energy transfer from Yb to Er. Co-doping Mo in ZnO:Er, Yb has brought a significant enhancement in green upconversion emission, when excited with 980 nm laser. The enhancement in green emission on Mo doping is because of the formation of Yb3+-MoO42- dimer. Since ZnO is a material having high thermal stability the enhanced green emission in Mo, Er, Yb doped ZnO can be used for temperature sensor applications...
November 21, 2017: Methods and Applications in Fluorescence
keyword
keyword
120695
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"