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Preparation of MWCNTs/PB Composite Material Modified Electrode with Vapor-surface Sol-gel Deposition
A novel amperometric biosensor was fabricated by incorporation of MWCNTs/PB composite material modified gold electrode with a vapor deposition method.The modified electrode showed excellent catalytic activity for hydrogen peroxide,which combined the merits of the synergic catalysis effects of PB and MWCNTs.In addition,...
In this paper, a modeling and simulation method for planar interdigitated ruthenium oxide MEMS supercapacitor was proposed based on the electrochemical reaction mechanism of supercapacitor. The study simulated the planar interdigitated ruthenium oxide MEMS super capacitor using Comsol software. The highly accurate char...
eng_Latn
38,507
Composite Substrates for GaN Growth
This work reports on the development of composite substrates, realised using the Smart Cut™ technology. A thin film of monocrystalline SiC or Si is transferred onto polycrystalline SiC. Those composite substrates can be prepared for 4” size and over as well. GaN layers are grown onto the above substrates in order to de...
ABSTRACTIn the present study, a new organoclay adsorbent for the adsorption of isoniazid (INH) was produced with the modification of bentonite using green chemistry approach. Glycine was used for t...
eng_Latn
38,511
Degradation of Single‐Layer and Few‐Layer Graphene by Neutrophil Myeloperoxidase
Biodegradability of graphene is one of the fundamental parameters determining the fate of this material in vivo. Two types of aqueous dispersible graphene, corresponding to single-layer (SLG) and few-layer graphene (FLG), devoid of either chemical functionalization or stabilizing surfactants, were subjected to biodegra...
Abstract The moving parts of any mechanism and machine parts are always subjected to a significant wear due to the development of friction. It is utmost important aspect to address the wear problems in present environment. But the complexity goes on increasing to replace the worn out parts if they are very precision. T...
eng_Latn
38,513
Studies on electro-conductive yarns prepared by in situ chemical and electrochemical polymerization of pyrrole
This work deals with preparation, characterization, and performance of electro-conductive yarns prepared by in situ chemical and electrochemical polymerization of pyrrole. Box-Behnken design in conjunction with response surface analysis has been used to study the electrochemical polymerization process. The effect of el...
The photopyroelectric method in a non contact detection configuration is proposed to study water migration in starch sheets. This allows the exchange of humidity between the moist atmosphere and the starch sample during the experiment. The sensitivity for the total water content measurement was about 0.3%. A theoretica...
eng_Latn
38,520
Ionizing-radiation-resistant polycarbonate resin composition, and molded product comprising same
A polycarbonate resin composition of the present invention comprises: a polycarbonate resin; a polyalkylene glycol; an epoxy ester compound containing an ester group and an epoxy group; and a halogenated polycarbonate oligomer. The polycarbonate resin composition has excellent discoloration resistance, color, hydrolysi...
In this paper, a modeling and simulation method for planar interdigitated ruthenium oxide MEMS supercapacitor was proposed based on the electrochemical reaction mechanism of supercapacitor. The study simulated the planar interdigitated ruthenium oxide MEMS super capacitor using Comsol software. The highly accurate char...
eng_Latn
38,535
Investigation of the analyticity of dissipative–dispersive systems via a semigroup method
Abstract In this work, we study the analyticity of Kuramoto–Sivashinsky type equations and related systems by exploring the applicability of the semigroup method, which was developed in Collet et al. [5] . We establish the analyticity, with respect to the spatial variable in a strip around the real axis, for a variety ...
Abstract Herein we report the facile synthesis of freestanding silver dendrite (AgD)/graphene oxide (GO) composite membranes, and demonstrate their use as an efficient and robust substrate with large-area uniformity and good reproducibility for surface-enhanced Raman scattering (SERS) applications. The as-prepared comp...
eng_Latn
38,536
Depolarizing field in temperature-graded ferroelectrics from an atomistic viewpoint
An atomistic approach for computing the depolarizing, or internal, electric field in materials with inhomogeneous polarization is developed. Application of the approach for studying the depolarizing fields in technologically important (Ba0.7Sr0.3)TiO3 ferroelectric alloy with temperature gradients has revealed the intr...
Delipidation of liver homogenates, using an organic solvent system which does not denature proteins, increases measurable ferritin by 25-33%, compared to ferritin concentrations by standard heat supernatant assays. When applied to polyacrylamide gradient gels, lipid-associated ferritin does not enter the gel but after ...
eng_Latn
38,537
Neurobiological actions of cysteamine.
Somatostatin (SS)-related peptides act within discrete brain regions to inhibit adrenal epinephrine (E) secretion, to prevent hypothermia, and to produce hyperthermia. Depletion of brain concentrations of these SS-related peptides using cysteamine (CSH) or central administration of an SS receptor antagonist increases a...
The Ni-SiC nano-composite coatings were prepared on the ring of stainless steel by using of high frequency pulse electroplating. Orthogonal experiment was used to study optimal dosage of the dispersant. The effect of some factors, such as current density, pH value, temperature , addition agent and so on, were studied. ...
eng_Latn
38,547
Experimental study on viscosities of TiO_2-H_2O nanofluids
Four different concentration TiO2-H2O nanofluids with 20 nm TiO2 were prepared with supersonic oscillator through appending hydrophilic dispersant into deionized water.The viscosities of TiO2-H2O nanofluids and deionized water were measured at different temperatures.The results showed that the viscosities of nanofluids...
A method for predicting organic compound volatilization rates under turbulent liquid and gas conditions is developed. The reference compounds are classified according to their physico-chemical properties. The mass transfer coefficient (K(OL)) ratios for organic solutes to the reference compounds are constant for a wide...
eng_Latn
38,550
Preparation of PZT thin films on stainless steel using electrochemical reduction
Abstract PZT perovskite films which were strongly adhered to stainless steel were prepared by electrochemical reduction in solutions containing TiO 2+ , ZrO 2+ , and Pb 2+ ions. The composition of the PZT films was easily controlled by the composition in the solution and the applied cathodic potential during the electr...
Objective To study the best extracting technology of Compound Taizishen Granule prescription.Methods The total polysaccharides and total saponins were determined by UV spectrophotometer.With the content of total polysaccharides and total saponins as comprehensive indexes,orthogonal test was applied to investigation of ...
eng_Latn
38,557
Fluorescence Determination of Merucury(II) Using a Thymine Aptamer
A label-free thymine-rich sequence and a molecular beacon were synthesized to construct a highly sensitive and selective fluorescence probe for the determination of mercury(II). The aptamer of the thymine-rich sequence selectively bonded with mercury(II) with an accompanying change in the fluorescence intensity of the ...
Abstract In the application of some polymers as track detectors, the attention should be paid to the fact that the track recording properties of these polymers are changed under the influence of certain parameters, such as the electromagnetic radiations and environmental conditions. In this work the etching effects of ...
eng_Latn
38,564
A theoretical and experimental study of the waveform in potentiometric stripping analysis with a rotating mercury-film electrode-the reversible case.
Abstract The potential-time transient in potentiometric stripping analysis with a rotating mercury-film electrode is simulated digitally by means of the finite-difference Cranck-Nicolson method. Good agreement with experimental results is obtained. The relations between peak shape and signal duration for reversible ana...
Plutonium metal scrap, oxide, and other residues are processed at Rocky Flats using both pyrochemical and aqueous methods. The pyrochemical processes currently in production include electrorefining, fluorination, hydriding, molten salt extraction (MSE), calcination, and reduction operations. Aqueous processing and wast...
eng_Latn
38,566
ROS and NF-kappa B are involved in upregulation of IL-8 in A549 cells exposed to multi-walled carbon nanotubes
Fujian Province for Young Scientific Researchers, China [2008173097]; Ministry of Science and Technology, China [2006CB93300]
In this paper, a modeling and simulation method for planar interdigitated ruthenium oxide MEMS supercapacitor was proposed based on the electrochemical reaction mechanism of supercapacitor. The study simulated the planar interdigitated ruthenium oxide MEMS super capacitor using Comsol software. The highly accurate char...
eng_Latn
38,574
Efficient and Chemoselective Deoxygenation of Amine N-Oxides Using Polymethylhydrosiloxane
Deoxygenation of aromatic and aliphatic amine N-oxides to the corresponding amines is achieved under mild conditions. The reagent combination employed for this transformation is polymethylhydrosiloxane (PMHS) in the presence of either tetrakis (triphenylphosphine) palladium (0) [Pd(PPh 3 ) 4 ], titanium (IV) isopropoxi...
Abstract Production anti-scorpion serum fraction requires washing water containing important quantities of (NH4)2SO4. This study presents a combination of the ultrafiltration and the electrodialysis to recover this salt. The application of ceramic ultrafiltration membrane has helped to reduce pollution due to organic m...
eng_Latn
38,575
ELECTROCHEMICAL POLYMERIZATION OF PYRROLE ON Ni-ELECTRODE AND THE THERMAL BEHAVIOR OF POLYPYRROLE
Pyrrole(PY) was electrochemically polymerized on Ni electrode by using Et4N(TsO) as electrolyte in ethyleneglycol/acetonitrile solvent with constant current or constant voltage. The electrical conductivity is around 10 s/cm. TGA results show that the film is stable under 300℃. Results of elemental analysis, FTIR, SEM a...
The photopyroelectric method in a non contact detection configuration is proposed to study water migration in starch sheets. This allows the exchange of humidity between the moist atmosphere and the starch sample during the experiment. The sensitivity for the total water content measurement was about 0.3%. A theoretica...
yue_Hant
38,580
Compounds and their preparation and use in the synthesis of the racetam Bois
The present application provides a compound of formula IV and II. The present application also provides for the synthesis of compounds of formula II and use of racetam Bois synthetic methods. The present application relates to the method the raw material is readily available and cheap, can be prepared with high optical...
In this paper, a modeling and simulation method for planar interdigitated ruthenium oxide MEMS supercapacitor was proposed based on the electrochemical reaction mechanism of supercapacitor. The study simulated the planar interdigitated ruthenium oxide MEMS super capacitor using Comsol software. The highly accurate char...
eng_Latn
38,587
Batch Supercritical Hydrothermal Synthesis of CeO2 Nanoparticles
CeO2 nanoparticles with diameter of about 5 nm were prepared by batch supercritical hydrothermal synthesis method at 390 °C without additional treatment. It was found that the characteristics of products depended on the pH value, reactant concentration (C0), and reaction temperature. The reaction time and coexisting ca...
Objective To study the best extracting technology of Compound Taizishen Granule prescription.Methods The total polysaccharides and total saponins were determined by UV spectrophotometer.With the content of total polysaccharides and total saponins as comprehensive indexes,orthogonal test was applied to investigation of ...
eng_Latn
38,588
Influence of three mechanical bileaflet prosthetic valve designs on the three-dimensional flow field inside a simulated aorta
Dynamic particle image velocimetry study of the aortic flow field of contemporary mechanical bileaflet prostheses
Polymer Nanocomposites—A Comparison between Carbon Nanotubes, Graphene, and Clay as Nanofillers
eng_Latn
38,616
Study Finds Dietary Link to Risk of Eye Disorder
Certain kinds of carbohydrates may play a role in the development of age-related macular degeneration, a new study suggests.
If you think you spend too much time stuck in front of a computer screen, spare a thought for bleary eyed gamer Eric Furrer.
kor_Hang
38,637
Beta carotene pills may not save vision
Carrots, rich in beta carotene, long have been thought to sharpen eyesight, but a new study suggests that beta carotene pills are powerless against a common type of vision loss among older people.
Our brains can turn down our ability to see to help them listen even harder to music and complex sounds, say experts.
eng_Latn
38,652
Where are green eyes most common?
There is no green pigment in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stroma, given by a low or moderate concentration of melanin, with the blue tone imparted by the Rayleigh scattering of the reflected...
English is used as a second language in parts of Southern Europe. As a primary language, however, English has only a small presence in Southern Europe, only in Gibraltar (alongside Spanish) and Malta (secondary to Maltese).
eng_Latn
38,676
Impact of pigment dispersion on trabecular meshwork cells
Purpose ::: Dysfunction of the trabecular meshwork (TM) in pigmentary glaucoma contributes to increased aqueous humor outflow resistance and intraocular pressure. In this study, we investigated the effect of pigment dispersion on trabecular meshwork cells.
Key message ::: Distributional patterns of pectin and hemicellulose epitopes in the phloem of four hardwoods vary between cell types including sieve tube elements, companion cells, parenchyma and sclerenchyma and between tree species.
eng_Latn
38,681
do dietary supplements(like claraxon)improve vision?
No.\n\nThe FDA is just releasing a massive study of various supplements, and almost none of them work. This one seems less plausible than most. What about vision would be related to a supplement? Your body supplies your eyes with what they need, we evolved that way.
Go to www.naturalcures.com. There, you can either join the site (with a fee) or find the information concerning the newsletter.\n\nAlso, have you read the books? That is another way to support.
eng_Latn
38,696
of upto 10 Tb/in 2 . It uniquely differs from other proposed next-generation architectures because of its reliance on sophisticated two-dimensional signal processing algorithms. Recently, a number of contributions have been made in the development of read-channel models and detectors for TDMR systems. In this paper, we...
We introduce a family of planar regions, called Aztec diamonds, and study tilings of these regions by dominoes. Our main result is that the Aztec diamond of order n has exactly 2n(n+1)/2 domino tilings. In this, the first half of a two-part paper, we give two proofs of this formula. The first proof exploits a connectio...
MLL1 regulates circadian promoters by depositing H3K4 trimethyl marks, whose levels are also modulated by the NAD+-dependent deacetylase SIRT1. SIRT1 is now shown to promote circadian deacetylation of MLL1, thus affecting MLL1's methyltransferase activity.
eng_Latn
38,828
Uncovering the Mechanisms of Shrimp Innate Immune Response by RNA Interference
Because of the importance of shrimp in world aquaculture, there is much interest in understanding their immune system in order to improve their resistance to pathogenic microorganisms. An effective tool in studying genes involved in the immune response in shrimp is RNA interference (RNAi). RNAi, first recognized as an ...
We study the Radiation-Induced Mismatch Enhancement (RIME) in 65 nm CMOS SRAM block designed for space applications. X-ray and heavy ion irradiation increase the number of non-rewriting cells.
eng_Latn
38,983
Detection of small non-coding RNAs.
Gene expression is regulated at several levels in plants, and one of the most recently discovered regulatory layers involve short RNAs. Short RNAs are produced through several pathways and target either mRNAs or genomic DNA. Different classes of short RNAs have slightly different sizes and detection of their accumulati...
A technique, whereby the radiation patterns of large size reflector antennas can be approximated by computers using a moment method without excessive computer time or memory, is described. Computational time increases only linearly with antenna size. There is no limit on the minimum reflector size (a single wire reflec...
eng_Latn
38,994
Stable expression of the chlorocatechol dioxygenase gene from Ralstonia eutropha NH9 in hybrid poplar cells.
The cbnA gene encoding chlorocatechol dioxygenase from the soil bacterium Ralstonia eutropha NH9 under the control of a modified cauliflower mosaic virus 35S promoter was introduced into a hybrid poplar (Populus tremula x P. tremuloides). Integration of the cbnA gene in transgenic poplar was confirmed by PCR and genomi...
The lake sediments have registered the information of palaeoclimate and palaeoenvironment in the lake itself and the regional scale. This also leads to a complexity in study of the palaeolimnology by all kinds of proxies. How to purify these proxies to indicate the palaeoclimate has become a problem to be solved. Most ...
eng_Latn
39,014
RNA editing: new insights into the storage and expression of genetic information.
Kinetoplastid flagellates, and possibly other parasites and viruses, have evolved a novel form of gene regulation at different phases of their life cycle by 'editing' their own RNA transcripts. This article discusses the significance of the process and proposes a hypothesis to explain how it may be done.
We study the Radiation-Induced Mismatch Enhancement (RIME) in 65 nm CMOS SRAM block designed for space applications. X-ray and heavy ion irradiation increase the number of non-rewriting cells.
eng_Latn
39,019
A simple procedure for the purification of yeast phenylalanine transfer RNA
Abstract For the past several years we have been attempting to study the secondary and tertiary structure of tRNAs + by means of chemical probes. In the course of this work it became necessary to obtain a highly purified species of tRNA. For two reasons we chose to purify yeast Phenylalanine tRNA. The nucleotide sequen...
Introduction A successful fi rst structure refi nement of lysozyme [1] already proved the value of standard XRPD laboratory instruments for protein structure research. In this contribution we will present new measurements and crystallographic analysis results of insulin and insulin derivatives performed on data from a ...
eng_Latn
39,042
A Double-Blind Study of the Effect of Ribonucleic Acid in Senile Brain Disease
A double-blind study to test the effect of orally administered ribonucleic acid upon the course of senile and arteriosclerotic brain disease failed to confirm the positive findings of other investigators. The authors conclude that RNA administered in this form does not appear to bring about improvement or reversal of s...
It all clicks into place: A potent telomere-targeting small molecule has been identified by using the copper-free 1,3-dipolar cycloaddition of a series of alkyne and azide building blocks catalyzed by a non-Watson-Crick DNA secondary structure (see picture). This method rapidly identifies, otherwise unanticipated, pote...
eng_Latn
39,052
CRISPR-Cas systems in bacteria and archaea: versatile small RNAs for adaptive defense and regulation.
CRISPR/Cas, the Immune System of Bacteria and Archaea
bim and lean interactions from the bim capability maturity model perspective : a case study .
eng_Latn
39,163
is RNA interference considered gmo
Abstract. The potential hazards posed by RNA interference (RNAi)–based pesticides and genetically modified crops to nontarget organisms include off-target gene silencing, silencing the target gene in unintended organisms, immune stimulation, and saturation of the RNAi machinery. new peer-reviewed paper in the journal...
RNAi Overview. RNA interference (RNAi) is a relatively new technology that is revolutionizing the way that researchers study mammalian gene expression. RNAi has had significant impact on the ease, speed, and specificity with which the loss of gene function analysis can be done in mammalian cells and animal models.
eng_Latn
39,200
This study addresses not only influence and selection of friends as sources of similarity in alcohol use, but also peer processes leading drinkers to be chosen as friends more often than non-drinkers, which increases the number of adolescents subject to their influence. Analyses apply a stochastic actor-based model to ...
Researchers have become increasingly interested in disentangling selection and influence processes. This literature review provides context for the special issue on network–behavior dynamics. It brings together important conceptual, methodological, and empirical contributions focusing on longitudinal social network mod...
Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.
eng_Latn
39,234
Analysis of Influencing Factors of Network Public Opinion Based on ISM
The purpose of this paper is to analyze the factors which influence the development of network public opinion.Interpretative structural modeling(ISM) was introduced into the analysis of the factors.The paper the attainable matrix,divides the matrix into several grades and parts,and sets up the harmoniousness structural...
This article is the second of two parts. The first one was published in the issue no 2 of this same journal. The preseni study uses the dependency index and the youth ratio to describe the aging process both at regional and municipal levels. Our data show a yet moderate aging process in (he region. with an uneven distr...
eng_Latn
39,239
Family, kin, and the quest for community: A study of three social networks in early-modern Italy
The article probes seventeenth-century occupational and marriage data from three parishes in the Savoyard domains for isomorphisms with processes of collective mobilization. Analyzed as directed graphs, networks of marriage alliance display widely differing patterns in standard graph measurements and Regular Equivalenc...
National teams of students who participated in 2012 Erasmus Intensive Program ’Library, Information and Cultural Management – Academic Summer School’ were asked to do researches on public libraries on Facebook in their countries. In the paper some of the results are presented and discussed.
eng_Latn
39,241
Mobile phone use among Alcoholics Anonymous members: new sites for recovery
This article reports on a line of research exploring mobile phone use in the recovery efforts of Alcoholics Anonymous (AA) members. A preliminary investigation indicated that many individuals in AA have come to rely on the mobile phone for both instrumental and expressive recovery-related interactions. This article rep...
This document describes the Namespace Identifier (NID) for Uniform ::: Resource Namespace (URN) resources published by the Open Mobile ::: Alliance (OMA). OMA defines and manages resources that utilize this ::: URN name model. Management activities for these and other resource ::: types are provided by the Open Mobile ...
eng_Latn
39,246
Why Lonely People Get Sick More Often
New research suggests that social isolation alters the immune system at the genetic level, raising the risk of serious disease. Oh, and the definition of loneliness might surprise you.
Researchers are using Facebook habits to study how tastes and values affect the formation of social relationships.
eng_Latn
39,251
Study Accuses Belgium of Collaborating
A government-backed report released Tuesday blamed Belgian authorities and the ruling elite for collaborating with the Nazi persecution of Jews during World War II.Comment
Researchers are using Facebook habits to study how tastes and values affect the formation of social relationships.
eng_Latn
39,253
Social norms and self-presentation on social network sites: Profile work in action
Unpacking "privacy" for a networked world
Parameter study and design of wide-band widescan dual-polarized tapered slot antenna arrays
eng_Latn
39,254
Musical Training as a Framework for Brain Plasticity: Behavior, Function, and Structure
When the brain plays music: auditory–motor interactions in music perception and production
Why people use social networking sites: An empirical study integrating network externalities and motivation theory
eng_Latn
39,255
Spectral Efficiency of MIMO Millimeter-Wave Links with Single-Carrier Modulation for 5G Networks
Tractable Model for Rate in Self-Backhauled Millimeter Wave Cellular Networks
The Effect of Social Media on Student ’ s Engagement and Collaboration : a case study of University of Venda using Facebook
eng_Latn
39,257
The anatomy of a large-scale social search engine
What do people ask their social networks, and why?: a survey study of status message q&a behavior
Motivations for social networking at work
eng_Latn
39,260
Understanding Usages and Affordances of Enterprise Social Networks: A Sociomaterial Perspective
enterprise social media : definition , history , and prospects for the study of social technologies in organizations .
Multidisciplinary optimization of servodrives for robot manipulators
eng_Latn
39,263
2 cognitive - behavioral theory .
Virtual Reality Exposure Therapy
data mining and social web semantics : a case study on the use of hashtags and memes in online social networks .
eng_Latn
39,290
A comparative study of three social networking websites
MySpace and Facebook: Applying the Uses and Gratifications Theory to Exploring Friend-Networking Sites
m-TSNE: A Framework for Visualizing High-Dimensional Multivariate Time Series
eng_Latn
39,298
Image classification using the web graph
Automatic Detection of Human Nudes
"Snapchat is more personal": An exploratory study on Snapchat behaviors and young adult interpersonal relationships
eng_Latn
39,299
Teen Study: Social Media Is Positive Experience
A study by the Pew Research Center's Internet and American Life Project reveals what teens think about the online experience. While bullying on social media sites like Facebook gets a lot of news coverage, most teens think social networks are a friendly place for them.
Many school-age kids have long since traded in their rocking horses and jump ropes for digital play. Commentator David Kushner describes why he thinks the Webkinz Web site is preparing children for life in a "virtualized society."
kor_Hang
39,344
Credibility and usefulness of health information on Facebook: a survey study with U.S. college students
Perceived usefulness, perceived ease of use, and user acceptance of information technology
Metal-Induced Oxidative Stress and Plant Mitochondria
eng_Latn
39,399
The evolution of social ties online: A longitudinal study in a massively multiplayer online game
The Scientific Research Potential of Virtual Worlds
A face(book) in the crowd: social Searching vs. social browsing
eng_Latn
39,400
How Envy Influences SNS Intentions to Use
Why people use social networking sites: An empirical study integrating network externalities and motivation theory
it ' s written on your face : detecting affective states from facial expressions while learning computer programming .
eng_Latn
39,402
User Migration in Online Social Networks: A Case Study on Reddit During a Period of Community Unrest
Why people use social networking sites: An empirical study integrating network externalities and motivation theory
The Network Paradigm in Organizational Research: A Review and Typology
eng_Latn
39,406
" novel aspects coming from the directionality of online relationships : a case study of twitter " by haewoon kwak , changhyun lee , hosung park , hyunwoo chun and sue moon with ching - man au yeung as coordinator .
Too Much of a Good Thing? The Relationship Between Number of Friends and Interpersonal Impressions on Facebook
Bromelain: An Overview
eng_Latn
39,409
Links between Adolescents' Deep and Surface Learning Approaches, Problematic Internet Use, and Fear of Missing Out (FoMO)
the moderator - mediator variable distinction in social psychological research : conceptual , strategic , and statistical considerations .
Congenital macrodactyly: a clinical study.
eng_Latn
39,415
tourists ' attachment processes and behavioral changes in social media : persuasion and reference group influence perspective .
Why people use social networking sites: An empirical study integrating network externalities and motivation theory
Corneal Higher-order Aberrations and Visual Improvement Following Corneal Transplantation in Treating Herpes Simplex Keratitis.
eng_Latn
39,416
Enriching in-person encounters through social media: A study on family connectedness for the elderly
Connection strategies: Social capital implications of Facebook-enabled communication practices
Feature Diagrams and Logics: There and Back Again
eng_Latn
39,423
effects on jealousy and relationship happiness .
social capital , self - esteem , and use of online social network sites : a longitudinal analysis .
Genotoxicity assessment of soil contamination: a case study from Farakka coal-fired power plant in eastern India
eng_Latn
39,470
The impact of social media use on academic performance among university students: a pilot study
Social networking: Communication revolution or evolution?
A face(book) in the crowd: social Searching vs. social browsing
eng_Latn
39,475
Instagram addiction and the Big Five of personality: The mediating role of self-liking
Association between Facebook addiction, self-esteem and life satisfaction: A cross-sectional study
Problematic Use of Social Network Sites: The Interactive Relationship Between Gratifications Sought and Privacy Concerns
eng_Latn
39,476
the effect of social network sites on adolescents ' social and academic development : current theories and controversies .
Social Consequences of the Internet for Adolescents: A Decade of Research
Clavibacter michiganensis subsp. michiganensis strains virulence and genetic diversity. a first study in Argentina
eng_Latn
39,490
Friending, IMing, and Hanging Out Face-to-Face: Overlap in Adolescents' Online and Offline Social Networks
A longitudinal study of the relation between adolescent boys and girls' computer use with friends and friendship quality: Support for the social compensation or the rich-get-richer hypothesis?
Parameter Sharing Deep Deterministic Policy Gradient for Cooperative Multi-agent Reinforcement Learning
eng_Latn
39,502
The effects of technostress and switching stress on discontinued use of social networking services: a study of Facebook use
user acceptance of computer technology : a comparison of two theoretical models * .
Distributed Cooperative Control of DC Microgrids
eng_Latn
39,527
is facebook affecting workplace productivity
According to a new survey by work force solutions provider Kelly Services, more than half of workers say social media is negatively affecting workplace productivity, with 57 percent believing that mixing personal and professional connections through social media has the potential to cause problems.he study also shows a...
There are two effects that I want to talk about. Facebook Has a Negative Impact on the Concentration of Students, about 70-75 percent of high school students are falling behind in class because they spend many hours on Facebook.Therefore, it leads to lack of time to studying or concentration on school work.tudents watc...
eng_Latn
39,560
Enriching in-person encounters through social media: A study on family connectedness for the elderly
Connection strategies: Social capital implications of Facebook-enabled communication practices
FromDaDy: Spreading Aircraft Trajectories Across Views to Support Iterative Queries
eng_Latn
39,575
Trends in online social networking: adolescent use of MySpace over time
The need to belong: Desire for interpersonal attachments as a fundamental human motivation.
aging changes of the midfacial fat compartments : a computed tomographic study .
eng_Latn
39,580
Credibility and usefulness of health information on Facebook: a survey study with U.S. college students
Perceived usefulness, perceived ease of use, and user acceptance of information technology
“Mask-Bot 2i”: An active customisable robotic head with interchangeable face
eng_Latn
39,581
Adoption of Social Media and the Quality of Life of Older Adults
Why people use social networking sites: An empirical study integrating network externalities and motivation theory
The perceptions towards mobile services: an empirical analysis of the role of use facilitators
eng_Latn
39,595
"Was It Something I Said?" "No, It Was Something You Posted!" A Study of the Spiral of Silence Theory in Social Media Contexts
Social Media Use for News and Individuals' Social Capital, Civic Engagement and Political Participation
Mental health professionals’ attitudes towards mental illness: professional and cultural factors in the INTER NOS study
eng_Latn
39,602
Adoption of Social Media and the Quality of Life of Older Adults
Why people use social networking sites: An empirical study integrating network externalities and motivation theory
Direct NMR observation and pKa determination of the Asp102 side chain in a serine protease.
eng_Latn
39,619
Analysis of personal information security behavior and awareness
Information revelation and internet privacy concerns on social network sites: a case study of facebook
An Interface Model for Parallel Components
eng_Latn
39,621
Studying Organizations on Instagram
Pictures Speak Louder than Words: Motivations for Using Instagram
Cultural difference in motivations for using social network sites: A comparative study of American and Korean college students
kor_Hang
39,632
Journal of Personality and Social Psychology: Attitudes and social cognition.
there is nothing so theoretical as a good method .
A comparative study of three social networking websites
eng_Latn
39,637
The reciprocal effects of social network site use and the disposition for self-disclosure: A longitudinal study
Social cognitive theory of mass communication
Spectrum sharing scenarios and resulting technical requirements for 5G systems
eng_Latn
39,642
average time someone spends on social media
Americans aged 18-64 who use social networks say they spend an average of 3.2 hours per day doing so, according to new research released by Ipsos Open Thinking Exchange (OTX).
The biggest increase has been among young adults, with time spent online almost tripling from 10 hours and 24 minutes each week in 2005 to 27 hours and 36 minutes in 2014. In total, the average adult spends more than 20 hours online a week, which includes time spent on the internet at work. Meanwhile the average person...
eng_Latn
39,649
A new type of attack on message authentication codes (MACs) is introduced which takes advantage of possible weaknesses in interfaces to hardware security modules. In particular, if a module does not fix the degree of MAC truncation employed, then potentially serious attacks are possible.
Modern trains rely on balises (communication beacons) located on the track to provide location information as they traverse a rail network. Balises, such as those conforming to the Eurobalise standard, were not designed with security in mind and are thus vulnerable to cyber attacks targeting data availability, integrit...
ABSTRACTUNC-45A is an ubiquitously expressed protein highly conserved throughout evolution. Most of what we currently know about UNC-45A pertains to its role as a regulator of the actomyosin system...
eng_Latn
39,702
Physical Layer Security in Two-tier Heterogeneous Cellular Networks over Nakagami Channel during Uplink Phase
In this paper, we study the connection and secrecy performance under two-tier cellular network during uplink phase, where both large-scale factor (path propagation loss) and small-scale factor (Nakagami fading) are considered., which are beyond the scope of the existing works. Analytical expressions of network connecti...
This paper studies the secure multiterminal source coding problem with actions. In particular, one main encoder observes an independent and identically distributed (i.i.d.) source Xn and wishes to compress this source lossyly to the decoder. Another encoder observes the source Yn and wants to compress this source lossl...
eng_Latn
39,746
An enhanced SOS architecture for DDoS attack defense using active network technology
After a long time study of DDoS attack, we find that the secure overlay services (SOS) architecture is one of the best ways to protect our service. There is no other reason but the ability to provide reliable communication between authorized clients and a protected target under on-going DDoS attacks. The SOS architectu...
In this article we will show you how to carry out the water charging system,used in LAN,including it's main structure,designing conception as well as the key technology to solve several problems we met.We emphasized the way to realize a Client/Server structured MIS based on DB.Finally we will tell you how to carry out ...
eng_Latn
39,760
Activation-Induced Cytidine Deaminase Expression in Gastric Cancer
Helicobacter pylori increases the risk of gastric cancer development and triggers aberrant expression of activation-induced cytidine deaminase (AID). The goal of the present study w
The pervasive usage of the Internet has made secure group communications a significant issue. Conference-key agreement protocols provide secure group communications with lower computational cost. Providing key agreements and updates of dynamic groups in an efficient manner is a significant challenge for conference-key ...
eng_Latn
39,780
A Fault Detection Scheme Based on Self-Clustering Nodes Sets for Wireless Sensor Networks
In this paper, we present a fault detection scheme based on self-clustering nodes sets for wireless sensor networks. In WSN, sensors' measurements are spatially related, and fault nodes can be detected by local comparisons. We firstly cluster nodes into several sets by the similarity of nodes' measurements using self-c...
We propose a framework for examining trust in the storage stack based on different levels of trustworthiness present across different channels of information flow. We focus on corruption in one of the channels, the data channel and as a case study, we apply type-aware corruption techniques to examine Windows NTFS behav...
eng_Latn
39,788
Caravan: Providing location privacy for vanet
An Efficient System for Non-transferable Anonymous Credentials with Optional Anonymity Revocation
A large-scale study of programming languages and code quality in GitHub
eng_Latn
39,856
Forensic carving of network packets and associated data structures
End-System Optimizations for High-Speed TCP
remembrance of data passed : a study of disk sanitization practices .
eng_Latn
39,860
MILS virtualization for Integrated Modular Avionics
an empirical study into the security exposure to hosts of hostile virtualized environments tavis .
ipv6 over low - power wireless personal area networks ( 6lowpans ) : overview , assumptions , problem statement , and goals .
eng_Latn
39,927
A testbed for secure and robust SCADA systems
Security issues in SCADA networks
perineal nodular induration ( " biker ' s nodule " ) : report of two cases with fine - needle aspiration cytology and immunohistochemical study .
eng_Latn
39,940
Pileus: protecting user resources from vulnerable cloud services
A lattice model of secure information flow
Comparing VR and non-VR driving simulations: An experimental user study
eng_Latn
40,007
Cold Boot Attacks are Still Hot: Security Analysis of Memory Scramblers in Modern Processors
Clearing the clouds: a study of emerging scale-out workloads on modern hardware
Combining visual and acoustic features for audio classification tasks
eng_Latn
40,178
Benzoyl Fluorides as Fluorination Reagents: Reconstruction of Acyl Fluorides via Reversible Acyl C–F Bond Cleavage/Formation in Palladium Catalysis
This report describes the formation of value-added acyl fluorides by means of palladium-catalyzed acyl-exchange reactions between acyl fluorides and acid anhydrides. This method allows using a simple and commercially available acyl fluoride, benzoyl fluoride, as the fluoride source for the easy and efficient preparatio...
In this work we have examined a series of 25 different Fischer carbene complexes of the type (CO)5CrC(X)R with X = H, OH, OCH3, NH2, and NHCH3 and R = H, CH3, CHCH2, Ph, and C⋮CH, to analyze the influence of each substituent on the molecular structure and bonding of these complexes. Energy and charge decomposition anal...
eng_Latn
40,285
Theoretical study of hexaphosphabenzene and its valence isomers. Is cyclic P6 stable
Abstract Ab initio calculations show that the cyclic aromatic structure (hexaphosphabenzene) is a minimum on the P 6 potential energy surface, and is kinetically stable to its unimolecular destruction. In contrast to the N 6 analogue, hexaphosphabenzene lies very close in energy to its valence P 6 isomers. This interes...
Zinc enolates derived from substituted 1-aryl-2,2-dibromoalkanones react with 3-acetyl-6-bromochromen-2-one to give 1a-acetyl-1-alkyl-1-aroyl-6-bromo-1a,7b-dihydro-1H-cyclopropa[c]chromen-2-ones as a single stereoisomer.
eng_Latn
40,287
Morphological study of chain-extended growth in polyethylene: 3. Annealing of solution-grown lamellae
Abstract Solution-grown lamellae of three commercial polyethylenes of differing molecular weight ranges have been annealed on substrates at high pressures. The polymers transform to the new high-pressure phase before melting but the new lamellar thicknesses reached remain much below those found for the bulk material. E...
Abstract Asymmetric total synthesis of small ring macrolide stagonolide-E has been described in this communication. The main highlight of our synthetic strategy is the application of ME-DKR (metal enzyme combo dynamic kinetic resolution) reaction, asymmetric reduction with Noyori’s BINAL-H reagent system, stereoselecti...
eng_Latn
40,303
Spectroscopic study of carbenes in low-temperature matrices
The review surveys and gives a systematic account of the literature data on the IR and UV spectroscopic studies on carbenes in low-temperature matrices. The methods of generation and isolation of carbenes in inert matrices at temperatures around 10 K are examined. The possibility of applying the data obtained to the st...
Chemosensory devices with self organized structures and artificial receptors are developed for a wide field of applications. Supramolecular hosts, highly ordered liquid crystal phases and even Langmuir Blodgett films are promising recognition elements. Cage compounds such as tert- butyl-calix[n]arene show high preorgan...
eng_Latn
40,330
Thienoquinolizidinones. Synthesis and rearrangement into new piperidino[1,2-a][1,3] or [1,4]diazepinones fused to a thiophene ring
A convenient route to thienoquinolizidinones is described starting from ethyl pipecolinate and suitable halogenomethylthiophenes or 3-chloromethylbenzothiophene. The Schmidt reaction and the Beckmann rearrangement of oximes of these ketones led to piperidino[1,2-a] [1,3] or [1,4]diazepines fused to a thiophene ring
The results of comparative kinetic study of the miniemulsion controlled radical polymerization of styrene in the presence of reversible chain transfer agents (benzyl dithiobenzoate and polystyrene dithiobenzoate) and bulk polymerization of similar systems are presented. The influence of the reactant nature and dithiobe...
eng_Latn
40,346
Base-catalyzed isomerization of 3-methyl-3-norcarene epoxides
A study was made of the isomerization of the trans- and cis-3,4-epoxy~3-methylnorcaranes by Et2NLi in ether and t-BuOK in pyridine. The action of both bases on the trans-epoxide gives comparable amounts of 4α-hydroxy-3-methyl-2-norcarene and 3α-hydroxy-3-methyl-4-norcarene. In the reactions of the cis-epoxide the compo...
A description is given of a paramagnetic center produced in single crystals of iodic acid, HIO3, when irradiated at room temperature with either x or γ rays. This center is interpreted as neutral iodine atoms, I0, trapped in the crystal. ESR studies indicate four different trapping sites that are related by the crystal...
eng_Latn
40,353
Synthesis and properties of novel 9,10-di(naphthalen-2-yl)anthracene derivatives
Abstract Three novel molecules were designed and synthesized based on a known compound 9,10-di(naphthalen-2-yl)anthracene (MADN). To broaden the π-conjugated system, three units with different electronegativity were introduced and connected to the C-2 position of MADN by vinyl unit. The Suzuki reaction, the Wittig reac...
A detailed theoretical study of the mechanism and energetics of an organocatalysis based on C=N activation by halogen-bonding is presented for the hydrocyanation of N-benzylidenemethylamine. The calculations at the level of scalar-relativistic gradient-corrected density functional theory give an insight in this catalyt...
eng_Latn
40,354
The Polymerization of Silacyclopentene and -pentane Derivatives
The polymerization of 1,1,3-trimethyl-1-silacyclopentene-3 (I), 1-methyl-, 1-allyl-1,1-diallyl-1-silacyclopentenes and -pentanes with aluminum chloride was carried out. By means of an IR spectroscopic analysis of the resulting polymers, it was established that not only ring opening but also vinyl polymerization due to ...
Abstract Both fibroin-based and sericin-based biomaterials have been studying extensively due to their wide applications, however the extraction of either fibroin or sericin protein is extremely complicated. Here we prepare the protein solution directly from alive silkworms instead of extracting proteins from silkworm ...
eng_Latn
40,374
Dynamic 1H NMR spectroscopic study of the restricted SN rotation in aryl-N-(arylsulfonyl)-N-(triphenylphosphoranylidene)imidocarbamates
Abstract Dynamic 1 H NMR (500 MHz) investigation of aryl- N -(arylsulfonyl)- N -(triphenylphosphoranylidene)imidocarbamates in CDCl 3 , CD 3 COCD 3 , and CD 3 OD at the temperature range of 183–298 K is reported. The observed free energy barriers (almost 12 kcal mol −1 ) are attributed to conformational isomerization a...
New synthetic approaches to the preparation of 2-(trifluoromethyl)indole and 2-amino-3-(trifluoromethyl)quinoline have been developed. In both cases, conditions of the Leimgruber-Batcho synthesis of indoles were used in the key step.
eng_Latn
40,376
An expedient synthesis of 3-acyltetramic acids of the melophlin family from α-aminoesters and immobilized Ph3PCCO
Abstract The naturally occurring 3-acyltetramic acids (3-acylpyrrolidine-2,4-diones) melophlin A, B, C and G were prepared in few steps from α-aminoesters or their hydrochlorides by cyclization with Ph 3 PCCO under mild conditions. The employment of immobilized, polystyrene-bound ylide greatly simplifies the removal of...
This paper deals with the behaviour of hydrolyse d Polyacrylamide solutions in the presence of chromium III. First, using potentiometry and spectroscopy, we study the complexation between chromium III and sodium acetate used as a low molecular weight model for the polymer. Then the same methods are applied to investiga...
eng_Latn
40,388
Efficient construction of the oxatricyclo[6.3.1.0(0,0)]dodecane core of komaroviquinone using a cyclization/cycloaddition cascade of a rhodium carbenoid intermediate.
The rhodium(II)-catalyzed cyclization/cycloaddition cascade of a o-carbomethoxyaryl diazo dione is described as a potential route to the oxatricyclo[6.3.1.0(0,0)]dodecane substructure of the icetexane diterpene komaroviquinone. The initially formed carbonyl ylide dipole prefers to cyclize to an epoxide at 25 degrees C ...
The aim of this paper is first to introduce and study Rota-Baxter cosystems and bisystems as generalization of Rota-Baxter coalgebras and bialgebras, respectively, with various examples. The second purpose is to provide an alternative definition of covariant bialgebras via coderivations. Furthermore, we consider coquas...
eng_Latn
40,412
Structure of the blue forms of bisphthalocyanines of rare-earth elements
Using electron spectroscopy, X-ray photoelectron spectroscopy, and ESR spectroscopy, the blue forms of bisphthalocyanines of rare-earth elements were found to have structures of sandwich-type complexes with isoelectronic phthalocyanine ligands linked with tetravalent metal ions, [Pc2−Ln4+Pc2−]0. A comparative spectral ...
Two comparative synthetic routes to new enantiomeric C 2 -symmetric Boc-protected biaziridinyls from tartaric ester were studied. Simplicity, high enantiomeric purity and high chemical yield of the target compound characterize the proposed methods. Also, unprotected biaziridinyl was synthesized and fully characterized.
eng_Latn
40,439
Tuning the chemoselective hydrogenation of aromatic ketones, aromatic aldehydes and quinolines catalyzed by phosphine functionalized ionic liquid stabilized ruthenium nanoparticles
Ruthenium nanoparticles (Ru NPs) stabilized by phosphine-functionalized ionic liquids (PFILs) were synthesized in an imidazolium-based ionic liquid using H2 as a reductant. Characterization showed well-dispersed particles of about 2.2 nm (TEM) and confirmed the PFIL stabilization of the Ru NPs (NMR). The Ru NPs stabili...
A study was carried out on the separation of active anthraquinone ingredient in Chinese rhubarb using High-Speed Countercurrent Chromatography with acid-base accommodationt. Trifluoroacetic acid (TFA) was used as the retaining acid and ammonia liquor as the eluent base. The solvent system was n-hexane-acetic ester-meth...
eng_Latn
40,469
1H-NMR study of the inclusion processes for α- and γ-cyclodextrin with fenbufen†
1H-NMR spectra of aqueous solutions of fenbufen and two cyclodextrins (α- or γ-cyclodextrin, respectively) mixtures confirm the formation of an inclusion complex if γ-cyclodextrin is used, whereas in the case of α-cyclodextrin no inclusion complex was obtained. The stoichiometry of the fenbufen/γ-cyclodextrin complex i...
The compounds reduced are given in the table in order of increasing empirical formulas. Compounds with the same empirical formula are arranged in order of increasing number of rings in the molecule, and compounds with the same number of rings in order of increasing number of substituents. In the case of complex reactio...
eng_Latn
40,499
Sc(OTf)3 as Efficient Catalyst for Aryl C-Glycoside Synthesis
s: Sc(OTf) 3 was found to be an efficient catalyst for the C-glycosylation of phenols. Reactions of various functionalized phenols and glycosyl acetates, including an azido-bearing one, are achieved by using a catalytic amount of Sc(OTf) 3 (10 mol % for neutral sugars or 50 mol% for an azido sugar) under mild condition...
We have used IR spectroscopy to study the reaction between L-cysteine and dimethyl sulfoxide in aqueous medium. We have found that reaction occurs with formation of an insoluble product, which we have identified. We show that oxidation of L-cysteine by dimethyl sulfoxide can occur at an appreciable rate under mild cond...
eng_Latn
40,501
Solvent polarity effects on hyperfine couplings of cyclohexadienyl-type radicals
In this study muon-spin rotation (μSR) serves as a tool for sensitive monitoring of the environment of muoniated radicals in isotropic liquids. A systematic investigation of the behaviour of the hyperfine coupling constants of cyclohexadienyl-type radicals is performed, and it is found that they are in linear dependenc...
Polyurethanes are synthesized using three different hydroxyalkylated cardanol–formaldehyde resins, diphenylmethane diisocyanate (MDI), and a commercial polyol (PPG-2000). These polyurethanes are found to be tough and crosslinked. A polyurethane prepared using a higher mole ratio of cardanol/formaldehyde of hydroxyalkyl...
eng_Latn
40,523