keyword
MENU ▼
Read by QxMD icon Read
search

Sense

keyword
https://www.readbyqxmd.com/read/28817769/a-paper-based-surface-enhanced-raman-scattering-lateral-flow-strip-for-detection-of-neuron-specific-enolase-in-blood-plasma
#1
Xuefei Gao, Peng Zheng, Sujan Kasani, Steven Wu, Feng Yang, Sara Lewis, Sara Nayeem, Elizabeth Engler-Chiurazzi, Jane Wigginton, James W Simpkins, Nianqiang Wu
An inexpensive and disposable paper-based lateral flow strip (PLFS) has been developed as an immunoassay, in which surface-enhanced Raman scattering (SERS) is utilized for sensing signal transduction. The Au nanostar@Raman Reporter@silica sandwich nanoparticles are developed as the SERS probes, which is the key to high sensitivity of device. Compared with a colorimetric PLFS, the SERS-PLFS exhibits superior performance in terms of sensitivity and limit of detection (LOD) in a blood plasma-containing sample matrix...
August 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28817658/hyperspectral-prediction-of-leaf-area-index-of-winter-wheat-in-irrigated-and-rainfed-fields
#2
Guangxin Li, Chao Wang, Meichen Feng, Wude Yang, Fangzhou Li, Ruiyun Feng
The growth status of winter wheat in irrigated field and rainfed field are obviously different and the field types may have an effect on the predictive accuracy of hyperspectral model. The objectives of the present study were to understand the difference of spectral sensitive wavelengths for leaf area index (LAI) in two field types and realize its hyperspectral prediction. In study, a total of 31 and 28 sample sites in irrigated fields and rainfed fields respectively were selected from Wenxi County, and the LAI and canopy spectra were also collected at the main grow stage of winter wheat...
2017: PloS One
https://www.readbyqxmd.com/read/28817572/tissue-specific-insulin-signaling-mediates-female-sexual-attractiveness
#3
Tatyana Y Fedina, Devin Arbuthnott, Howard D Rundle, Daniel E L Promislow, Scott D Pletcher
Individuals choose their mates so as to maximize reproductive success, and one important component of this choice is assessment of traits reflecting mate quality. Little is known about why specific traits are used for mate quality assessment nor about how they reflect it. We have previously shown that global manipulation of insulin signaling, a nutrient-sensing pathway governing investment in survival versus reproduction, affects female sexual attractiveness in the fruit fly, Drosophila melanogaster. Here we demonstrate that these effects on attractiveness derive from insulin signaling in the fat body and ovarian follicle cells, whose signals are integrated by pheromone-producing cells called oenocytes...
August 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28817436/why-do-general-surgeons-decide-to-retire-a-population-level-survey
#4
Heather M Poushay, Daniel J Kagedan, Julie Hallet, Lesley Gotlib Conn, Kaitlyn Beyfuss, Ashlie Nadler, Najma Ahmed, Frances C Wright
: Limited recent data exist regarding intended retirement plans for general surgeons (GS). We sought to understand when and why surgeons decide to stop operating as primary surgeon and stop all clinical work.A paper-based survey of practicing GS in the province of Ontario, Canada, was conducted. A questionnaire was developed using a systematic approach of item generation and reduction. Face and content validity were tested. The survey was administered via mail, with a planned reminder.Overall response rate was 33...
August 16, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28817270/magnetic-field-activated-sensing-of-mrna-in-living-cells
#5
Saira F Bakshi, Nataliia Guz, Andrey Zakharchenko, Han Deng, Alexei Tumanov, Craig D Woodworth, Sergiy Minko, Dmitry M Kolpashchikov, Evgeny Katz
Detection of specific mRNA in living cells has attracted significant attention in the last decade. Probes that can be easily delivered into cells and activated at the desired time can contribute to understand-ing translation, trafficking and degradation of mRNA. Here we report a new strategy termed Magnetic Field-Activated Binary De-oxyribozyme (MaBiDZ) sensor that enables both efficient delivery and temporal control of mRNA sensing by magnetic field. MaBiDZ uses two species of magnetic beads conjugated with different com-ponents of a multicomponent deoxyribozyme (DZ) sensor...
August 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28817114/trauma-informed-care-in-the-newborn-intensive-care-unit-promoting-safety-security-and-connectedness
#6
M R Sanders, S L Hall
Both babies and their parents may experience a stay in the newborn intensive care unit (NICU) as a traumatic or a 'toxic stress,' which can lead to dysregulation of the hypothalamic-pituitary-adrenal axis and ultimately to poorly controlled cortisol secretion. Toxic stresses in childhood or adverse childhood experiences (ACEs) are strongly linked to poor health outcomes across the lifespan and trauma-informed care is an approach to caregiving based on the recognition of this relationship. Practitioners of trauma-informed care seek to understand clients' or patients' behaviors in light of previous traumas they have experienced, including ACEs...
August 17, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28817107/ag-nanorods-oxide-hybrid-array-substrates-synthesis-characterization-and-applications-in-surface-enhanced-raman-scattering
#7
REVIEW
Lingwei Ma, Jianghao Li, Sumeng Zou, Zhengjun Zhang
Over the last few decades, benefitting from the sufficient sensitivity, high specificity, nondestructive, and rapid detection capability of the surface-enhanced Raman scattering (SERS) technique, numerous nanostructures have been elaborately designed and successfully synthesized as high-performance SERS substrates, which have been extensively exploited for the identification of chemical and biological analytes. Among these, Ag nanorods coated with thin metal oxide layers (AgNRs-oxide hybrid array substrates) featuring many outstanding advantages have been proposed as fascinating SERS substrates, and are of particular research interest...
August 17, 2017: Sensors
https://www.readbyqxmd.com/read/28817081/multiphysics-simulation-of-low-amplitude-acoustic-wave-detection-by-piezoelectric-wafer-active-sensors-validated-by-in-situ-ae-fatigue-experiment
#8
Md Yeasin Bhuiyan, Victor Giurgiutiu
Piezoelectric wafer active sensors (PWAS) are commonly used for detecting Lamb waves for structural health monitoring application. However, in most applications of active sensing, the signals are of high-amplitude and easy to detect. In this article, we have shown a new avenue of using the PWAS transducer for detecting the low-amplitude fatigue-crack related acoustic emission (AE) signals. Multiphysics finite element (FE) simulations were performed with two PWAS transducers bonded to the structure. Various configurations of the sensors were studied by using the simulations...
August 17, 2017: Materials
https://www.readbyqxmd.com/read/28817079/insight-into-the-mechanism-of-co-oxidation-on-wo%C3%A2-001-surfaces-for-gas-sensing-a-dft-study
#9
Hua Jin, Hegen Zhou, Yongfan Zhang
The mechanism of CO oxidation on the WO₃(001) surface for gas sensing performance has been systematically investigated by means of first principles density functional theory (DFT) calculations. Our results show that the oxidation of CO molecule on the perfect WO₃(001) surface induces the formation of surface oxygen vacancies, which results in an increase of the surface conductance. This defective WO₃(001) surface can be re-oxidized by the O₂ molecules in the atmosphere. During this step, the active O₂(-) species is generated, accompanied with the obvious charge transfer from the surface to O₂ molecule, and correspondingly, the surface conductivity is reduced...
August 17, 2017: Sensors
https://www.readbyqxmd.com/read/28816669/nonlocally-multi-morphological-representation-for-image-reconstruction-from-compressive-measurements
#10
Jiao Wu, Feilong Cao, Juncheng Yin
A novel multi-morphological representation model for solving the nonlocal similarity-based image reconstruction from compressed measurements is introduced in this paper. Under the probabilistic framework, the proposed approach provides the nonlocal similarity clustering for image patches by using the Gaussian mixture models, and endows a multimorphological representation for image patches in each cluster by using the Gaussians that represent the different features to model the morphological components. Using the simple alternating iteration, the developed piecewise morphological diversity estimation (PMDE) algorithm can effectively estimate the MAP of morphological components, thus resulting in the nonlinear estimation for image patches...
August 16, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28816642/proteomic-analysis-of-the-human-olfactory-bulb
#11
Manjunath Dammalli, Gourav Dey, Anil K Madugundu, Manish Kumar, Benvil Rodrigues, Harsha Gowda, Bychapur Gowrishankar Siddaiah, Anita Mahadevan, Susarla Krishna Shankar, Thottethodi Subrahmanya Keshava Prasad
The importance of olfaction to human health and disease is often underappreciated. Olfactory dysfunction has been reported in association with a host of common complex diseases, including neurological diseases such as Alzheimer's disease and Parkinson's disease. For health, olfaction or the sense of smell is also important for most mammals, for optimal engagement with their environment. Indeed, animals have developed sophisticated olfactory systems to detect and interpret the rich information presented to them to assist in day-to-day activities such as locating food sources, differentiating food from poisons, identifying mates, promoting reproduction, avoiding predators, and averting death...
August 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28816639/posttraumatic-growth-among-childhood-cancer-survivors-associations-with-ethnicity-acculturation-and-religious-service-attendance
#12
Jessica Tobin, Jon-Patrick Allem, Rhona Slaughter, Jennifer B Unger, Ann S Hamilton, Joel E Milam, Jessica Tobin
This study assessed the association between ethnicity, religious service attendance (RSA), and acculturation with posttraumatic growth (PTG) in a diverse sample of 235 childhood cancer survivors (CCS). PTG scores were estimated for each ethnicity, and by level of RSA and acculturation. There was a significant curvilinear relationship (inverted U) between RSA and PTG, such that moderate levels of RSA were associated with highest PTG scores. Hispanics reported the highest PTG, and both Hispanic and Anglo cultural orientation were significantly positively associated with PTG...
August 17, 2017: Journal of Psychosocial Oncology
https://www.readbyqxmd.com/read/28816480/superior-olfactory-language-and-cognition-in-odor-color-synaesthesia
#13
Laura J Speed, Asifa Majid
Olfaction is often considered a vestigial sense in humans, demoted throughout evolution to make way for the dominant sense of vision. This perspective on olfaction is reflected in how we think and talk about smells in the West, with odor imagery and odor language reported to be difficult. In the present study we demonstrate odor cognition is superior in odor-color synaesthesia, where there are additional sensory connections to odor concepts. Synaesthesia is a neurological phenomenon in which input in 1 modality leads to involuntary perceptual associations...
August 17, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28816479/alternation-blindness-in-the-representation-of-binary-sequences
#14
Ru Qi Yu, Daniel Osherson, Jiaying Zhao
Binary information is prevalent in the environment and contains 2 distinct outcomes. Binary sequences consist of a mixture of alternation and repetition. Understanding how people perceive such sequences would contribute to a general theory of information processing. In this study, we examined how people process alternation and repetition in binary sequences. Across 4 paradigms involving estimation, working memory, change detection, and visual search, we found that the number of alternations is underestimated compared with repetitions (Experiment 1)...
August 17, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28816463/signaling-related-mobility-changes-in-bacterial-chemotaxis-receptors-revealed-by-solid-state-nmr
#15
Maryam Kashefi, Lynmarie K Thompson
Bacteria employ remarkable membrane-bound nanoarrays to sense their environment and direct their swimming. Arrays consist of chemotaxis receptor trimers of dimers that are bridged at their membrane-distal tips by rings of two cytoplasmic proteins, a kinase CheA and a coupling protein CheW. It is not clear how ligand binding to the periplasmic domain of the receptor deactivates the CheA kinase bound to the cytoplasmic tip ~300 Å away, but the mechanism is thought to involve changes in dynamics within the cytoplasmic domain...
August 17, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28816432/an-integrated-microsystem-for-real-time-detection-and-threshold-activated-treatment-of-bacterial-biofilms
#16
Sowmya Subramanian, Ekaterina I Tolstaya, Thomas Winkler, William E Bentley, Reza Ghodssi
Bacterial biofilms are the primary cause of infections in medical implants and catheters. Delayed detection of biofilm infections contributes to the widespread use of high doses of antibiotics, leading to the emergence of antibiotic-resistant bacterial strains. Accordingly, there is an urgent need for systems that can rapidly detect and treat biofilm infections in situ. As a step towards this goal, in this work we have developed for the first time a threshold-activated feedback-based impedance sensor-treatment system for combined real-time detection and treatment of biofilms...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28816430/dual-colorimetric-and-fluorescent-authentication-based-on-semiconducting-polymer-dots-for-anti-counterfeiting-applications
#17
Wei-Kai Tsai, Yung-Sheng Lai, Po-Jung Tseng, Chia-Hsien Liao, Yang-Hsiang Chan
Semiconducting polymer dots (Pdots) have recently emerged as a novel type of ultrabright fluorescent probes that can be widely used in analytical sensing and material science. Here we developed a dual visual agents based on Pdots for anti-counterfeiting applications. We first designed and synthesized two types of photoswitchable Pdots by incorporating photochromic dyes with multi-color semiconducting polymers to modulate their emission intensities and wavelengths. The resulting full-color Pdot assays showed the colorimetric and fluorescent dual-readout abilities to serve as an anti-counterfeiting reagent with low background interference...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28816364/balancing-competing-needs-mediates-the-association-of-caregiving-demand-with-caregiver-role-strain-and-depressive-symptoms-of-dementia-caregivers-a-cross-sectional-study
#18
Hsin-Yun Liu, Ching-Tzu Yang, Yu-Nu Wang, Wen-Chuin Hsu, Tzu-Hsin Huang, Yueh-E Lin, Chin-Yi Liu, Yea-Ing L Shyu
AIMS: To examine the role of balancing competing needs in the relationship between caregiving demand and caregiving outcomes (caregivers' role strain and depressive symptoms). BACKGROUND: Caregivers who do not balance competing needs are more likely to experience negative caregiving outcomes, suggesting that balance mediates between caregiving demand and caregiving outcomes. Identifying a mediator of negative caregiving effects may help in developing tailored interventions for family caregivers of persons with dementia...
August 17, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28816362/social-space-and-cultural-class-divisions-the-forms-of-capital-and-contemporary-lifestyle-differentiation
#19
Magne Flemmen, Vegard Jarness, Lennart Rosenlund
In this article, we address whether and how contemporary social classes are marked by distinct lifestyles. We assess the model of the social space, a novel approach to class analysis pioneered by Bourdieu's Distinction. Although pivotal in Bourdieu's work, this model is too often overlooked in later research, making its contemporary relevance difficult to assess. We redress this by using the social space as a framework through which to study the cultural manifestation of class divisions in lifestyle differences in contemporary Norwegian society...
August 17, 2017: British Journal of Sociology
https://www.readbyqxmd.com/read/28816308/ln-iii-complexes-ln-eu-gd-tb-dy-with-a-chiral-ligand-containing-1-10-phenanthroline-and-menthol-fragments-synthesis-structure-magnetic-properties-and-photoluminescence
#20
Stanislav V Larionov, Yuliya A Bryleva, Ludmila A Glinskaya, Victor F Plyusnin, Arkady S Kupryakov, Alexander M Agafontsev, Alexey V Tkachev, Artem S Bogomyakov, Dmitry A Piryazev, Ilya V Korolkov
A series of lanthanide(iii) complexes based on the new chiral ligand L, which contains 1,10-phenanthroline and (-)-menthol fragments, namely [LnL2(NO3)3] (Ln = Eu (1), Gd (2), Tb (3), Dy (4)), have been synthesized and structurally characterized. Complexes 1-4 are isostructural and crystallize in the non-centrosymmetric space group P41212. The mononuclear complexes comprise a 10-coordinate Ln(3+) ion with two bidentate N,N-donor ligands (L) and three bidentate chelating nitrate groups. The magnetic properties of complexes 1-4 are determined mainly by the Ln(3+) ions...
August 17, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
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"