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https://www.readbyqxmd.com/read/28446000/structural-modification-of-single-layer-graphene-under-laser-irradiation-featured-by-micro-raman-spectroscopy
#1
Yurii Stubrov, Andrii Nikolenko, Viktor Strelchuk, Sergii Nedilko, Vitalii Chornii
Confocal micro-Raman spectroscopy is used as a sensitive tool to study the nature of laser-induced defects in single-layer graphene. Appearance and drastic intensity increase of D- and D' modes in the Raman spectra at high power of laser irradiation is related to generation of structural defects. Time- and power-dependent evolution of Raman spectra is studied. The dependence of relative intensity of defective D- and D' bands is analyzed to relate the certain types of structural defects. The surface density of structural defects is estimated from the intensity ratio of D- and G bands using the D-band activation model...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28445843/health-and-income-inequalities-in-europe-what-is-the-role-of-circumstances
#2
M Pasqualini, D Lanari, L Minelli, L Pieroni, L Salmasi
Equality of opportunity theories distinguish between inequalities due to individual effort and those due to external circumstances. Recent research has shown that half of the variability in income of World population was determined by country of birth and income distribution. Since health and income are generally strictly related, the aim of this paper is to estimate how much variability in income and health is determined by external circumstances. We use data from the Survey of Health, Ageing and Retirement (SHARE) and the English Longitudinal Survey on Ageing (ELSA), two comparable multidisciplinary surveys that provide micro-level data on health and financial resources among the elderly for a large number of European countries...
April 17, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/28445743/egfr-targeted-micelles-containing-near-infrared-dye-for-enhanced-photothermal-therapy-in-colorectal-cancer
#3
Ying-Hsia Shih, Tsai-Yueh Luo, Ping-Fang Chiang, Cheng-Jung Yao, Wuu-Jyh Lin, Cheng-Liang Peng, Ming-Jium Shieh
The purpose of this research was to investigate the effectiveness of epidermal growth factor receptor (EGFR) targeted micelles loaded with IR-780 (Cetuximab/IR-780/micelles) for generating tumor targeting, multimodal images, and photothermal therapy (PTT). We initially studied the cellular uptake of these micelles using the HCT-116 and SW-620 cell lines. HCT-116 (high expression of EGFR) and SW-620 (low expression of EGFR) cell lines were used to examine biodistribution and antitumor effects of Cetuximab/IR-780/micelles...
April 23, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28445699/journey-of-cystatins-from-being-mere-thiol-protease-inhibitors-to-at-heart-of-many-pathological-conditions
#4
REVIEW
Anas Shamsi, Bilqees Bano
Cystatins are thiol proteinase inhibitors (TPI), present ubiquitously in animals, plants and micro-organisms. These are not merely inhibitors rather they are at heart of many pathological conditions ranging from diabetes to renal failure. These are essential for maintenance of protein balance of the cell; once this balance gets disturbed, it may lead to cell death. Thus, cystatins cannot be merely regarded as TPI's as these have been found to play a pivotal role in tumorigenesis and neurodegenerative diseases...
April 23, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28445643/pinhole-free-hybrid-perovskite-film-with-arbitrarily-shaped-micro-patterns-for-functional-optoelectronic-devices
#5
Jiang Wu, Junyan Chen, Yifei Zhang, Zhaojian Xu, Lichen Zhao, Tanghao Liu, Deying Luo, Wenqiang Yang, Ke Chen, Qin Hu, Fengjun Ye, Pan Wu, Rui Zhu, Qihuang Gong
In many optoelectronic applications, patterning is required for functional and/or aesthetic purposes. However, established photolithographic technique can't be applied directly to the hybrid perovskites, which are considered as promising candidates for optoelectronic applications. In this work, a wettability-assisted photolithography (WAP) process, which employs photolithography and one-step solution process to deposit hybrid perovskite, was developed for fabricating patterned hybrid perovskite films. Uniform pinhole-free hybrid perovskite films with sharp-edged micro-patterns of any shapes can be constructed through the WAP process...
April 26, 2017: Nano Letters
https://www.readbyqxmd.com/read/28445523/preventive-child-health-care-at-elementary-school-age-the-costs-of-routine-assessments-with-a-triage-approach
#6
Janine Bezem, Catharina van der Ploeg, Mattijs Numans, Simone Buitendijk, Paul Kocken, Elske van den Akker
BACKGROUND: Triage in Preventive Child Health Care (PCH) assessments could further the efficient use of human resources and budgets and therefore make extra care possible for children with specific needs. We assessed the costs of routine PCH assessments with and without triage for children aged 5/6 years and 10/11 years. In a triage approach, PCH assistants conduct pre-assessments to identify children requiring follow-up assessments by a physician or nurse. In the usual approach, all children are assessed by a physician and an assistant (children aged 5/6 years) or a nurse (children aged 10/11 years)...
2017: PloS One
https://www.readbyqxmd.com/read/28445430/impact-of-land-use-on-pm2-5-pollution-in-a-representative-city-of-middle-china
#7
Haiou Yang, Wenbo Chen, Zhaofeng Liang
Fine particulate matter (PM2.5) pollution has become one of the greatest urban issues in China. Studies have shown that PM2.5 pollution is strongly related to the land use pattern at the micro-scale and optimizing the land use pattern has been suggested as an approach to mitigate PM2.5 pollution. However, there are only a few researches analyzing the effect of land use on PM2.5 pollution. This paper employed land use regression (LUR) models and statistical analysis to explore the effect of land use on PM2.5 pollution in urban areas...
April 26, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28445419/embedded-spherical-localization-for-micro-underwater-vehicles-based-on-attenuation-of-electro-magnetic-carrier-signals
#8
Daniel-André Duecker, A René Geist, Michael Hengeler, Edwin Kreuzer, Marc-André Pick, Viktor Rausch, Eugen Solowjow
Self-localization is one of the most challenging problems for deploying micro autonomous underwater vehicles ( μ AUV) in confined underwater environments. This paper extends a recently-developed self-localization method that is based on the attenuation of electro-magnetic waves, to the μ AUV domain. We demonstrate a compact, low-cost architecture that is able to perform all signal processing steps present in the original method. The system is passive with one-way signal transmission and scales to possibly large μ AUV fleets...
April 26, 2017: Sensors
https://www.readbyqxmd.com/read/28445417/ins-gnss-integration-for-aerobatic-flight-applications-and-aircraft-motion-surveying
#9
Edgar L V Hinüber, Christian Reimer, Tim Schneider, Michael Stock
This paper presents field tests of challenging flight applications obtained with a new family of lightweight low-power INS/GNSS (inertial navigation system/global satellite navigation system) solutions based on MEMS (micro-electro-mechanical- sensor) machined sensors, being used for UAV (unmanned aerial vehicle) navigation and control as well as for aircraft motion dynamics analysis and trajectory surveying. One key is a 42+ state extended Kalman-filter-based powerful data fusion, which also allows the estimation and correction of parameters that are typically affected by sensor aging, especially when applying MEMS-based inertial sensors, and which is not yet deeply considered in the literature...
April 26, 2017: Sensors
https://www.readbyqxmd.com/read/28445253/micro-rna-screening-and-prediction-model-construction-for-diagnosis-of-salt-sensitive-essential-hypertension
#10
Han Qi, Zheng Liu, Bin Liu, Han Cao, Weiping Sun, Yuxiang Yan, Ling Zhang
Commonly used tests for diagnosis of salt-sensitive hypertension (SSH) are complex and time-consuming, so new methods are required. Many studies have demonstrated roles for miRNAs in hypertension; however, the diagnostic value of miRNAs has yet to be determined for human SSH. In this study, we examined miRNA expression profiles by initial high-throughput miRNA sequencing of samples from patients with salt-sensitive and salt-resistant hypertension (SSH and SRH, respectively; n = 6, both groups), followed by validation by quantitative real-time polymerase chain reaction (qRT-PCR) in a larger cohort (n = 91)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445227/a-review-of-player-monitoring-approaches-in-basketball-current-trends-and-future-directions
#11
Jordan L Fox, Aaron T Scanlan, Robert Stanton
Effective monitoring of players in team-sports such as basketball requires an understanding of the external demands and internal responses as they relate to training phases and competition. Monitoring of external demands and internal responses allows coaching staff to determine the dose-response associated with the imposed training load, and subsequently, if players are adequately prepared for competition. This review discusses measures reported in the literature for monitoring the external demands and internal responses of basketball players during training and competition...
April 18, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28444931/study-of-structure-dependent-chromatographic-behavior-of-glycopeptides-using-reversed-phase-nanolc
#12
Petr Kozlik, Radoslav Goldman, Miloslav Sanda
Analysis of glycosylation is challenging due to micro- and macro-heterogeneity of the protein attachment. A combination of liquid chromatography with tandem mass spectrometry is one of the most powerful tools for glycopeptide analysis. In this work, we show the effect of various monosaccharide units on the retention time of glycopeptides. Retention behavior of several glycoforms of six peptides obtained from tryptic digest of haptoglobin, hemopexin and sex hormone binding globulin was studied on a reversed phase chromatographic column...
April 26, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28444854/analysis-of-organic-components-in-resin-modified-pulp-capping-materials-critical-considerations
#13
Bo W Nilsen, Einar Jensen, Ulf Örtengren, Vibeke B Michelsen
The purpose of this study was to elucidate the organic composition and eluates of three resin-based pulp-capping materials in relation to their indications and safety data sheets. Uncured samples of Theracal LC, Ultra-Blend Plus, and Calcimol LC were investigated using gas chromatography-mass spectrometry (GC-MS) and ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). Identification/quantification of 7-d leachables of cured samples was performed using GC-MS for 2-hydroxyethyl methacrylate (HEMA), 2-(dimethylamino)ethyl methacrylate (DMAEMA), camphorquinone (CQ), ethylene glycol dimethacrylate (EGDMA), ethyl-4-(dimethylamino)benzoate (DMABEE), and triethylene glycol dimethacrylate (TEGDMA)...
April 26, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28444712/the-urinary-microbiome-and-its-contribution-to-lower-urinary-tract-symptoms-ici-rs-2015
#14
REVIEW
Marcus J Drake, Nicola Morris, Apostolos Apostolidis, Mohammad S Rahnama'i, Julian R Marchesi
AIMS: The microbiome is the term used for the symbiotic microbial colonisation of healthy organs. Studies have found bacterial identifiers within voided urine which is apparently sterile on conventional laboratory culture, and accordingly there may be health and disease implications. METHODS: The International Consultation on Incontinence Research Society (ICI-RS) established a literature review and expert consensus discussion focussed on the increasing awareness of the urinary microbiome, and potential research priorities...
April 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28444618/rna-dna-co-analysis-on-aged-bloodstains-from-adhesive-tapes-used-for-gunshot-residue-collection-from-hands
#15
Melanie Grabmüller, Christian Schyma, Burkhard Madea, Tim Eichhorst, Cornelius Courts
In cases of firearm related fatalities a systematic investigation at the scene of death is indispensable to differentiate between self-inflicted and homicidal gunshot injuries. A common method to preserve gunshot residues (GSR) is their collection using adhesive tapes. However, the biological material gathered at the same time by the tapes would be of special interest if backspatter, ejected from the entrance wound against the direction of fire, could be detected. In the present study we examined the success rate of co-analysis of RNA and DNA recovered from biological traces sampled with adhesive tapes...
April 25, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28444602/bioactive-guided-fractionation-of-diols-from-streptomyces-sp-msl
#16
Raja Hima Bindhu Madasu, Vijayalakshmi Muvva, Rajesh Kumar Munaganti, Kumar Reddy Dorigondla, Venkateswarlu Yenamandra
An actinomycete strain with a great potential to produce bioactive compounds isolated from a laterite soil was identified as Streptomyces sp. MSL based on 16S rDNA sequence analysis. Secondary metabolites produced by the strain in optimized nutrient broth were extracted and analyzed by chromatographic and spectroscopic techniques. Among the different fractions, four diols, viz., (1) (2R,3R)-2,3-Butanediol, (2) (2R,3S)-2,3-Butanediol, (3) 2,3-dimethyl-2,3-butanediol (Pinacol), and (4) (3R)-1,3-Butanediol exhibited good antimicrobial activity...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28444564/response-to-lead-pollution-mycorrhizal-pinus-sylvestris-forms-the-biomineral-pyromorphite-in-roots-and-needles
#17
Maria L Bizo, Sandor Nietzsche, Ulrich Mansfeld, Falko Langenhorst, Juraj Majzlan, Jörg Göttlicher, Alexandru Ozunu, Steffi Formann, Katrin Krause, Erika Kothe
The development of mycorrhized pine seedlings grown in the presence of lead was assessed in order to investigate how higher plants can tolerate lead pollution in the environment. Examination with scanning electron microscopy (SEM) revealed that Pb uptake was prominent in the roots, while a smaller amount was found in pine needles, which requires symplastic uptake and root-to-shoot transfer. Lead was concentrated in nanocrystalline aggregates attached to the cell wall and, according to elemental microanalyses, is associated with phosphorus and chlorine...
April 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28444473/contrasting-effects-of-engineered-carbon-nanotubes-on-plants-a-review
#18
Meththika Vithanage, Mihiri Seneviratne, Mahtab Ahmad, Binoy Sarkar, Yong Sik Ok
Rapid surge of interest for carbon nanotube (CNT) in the last decade has made it an imperative member of nanomaterial family. Because of the distinctive physicochemical properties, CNTs are widely used in a number of scientific applications including plant sciences. This review mainly describes the role of CNT in plant sciences. Contradictory effects of CNT on plants physiology are reported. CNT can act as plant growth inducer causing enhanced plant dry biomass and root/shoot lengths. At the same time, CNT can cause negative effects on plants by forming reactive oxygen species in plant tissues, consequently leading to cell death...
April 25, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28444379/killing-the-killer-predation-between-protists-and-predatory-bacteria
#19
Julia Johnke, Jens Boenigk, Hauke Harms, Antonis Chatzinotas
Predation by microbes is one of the main drivers of bacterial mortality in the environment. In most ecosystems multiple micro-predators compete at least partially for the same bacterial resource. Predatory interactions between these micro-predators might lead to shifts within microbial communities. Integrating these interactions is therefore crucial for the understanding of ecosystem functioning. In this study we investigated the predation between two groups of micro-predators, i.e. phagotrophic protists and Bdellovibrio and like organisms (BALOs)...
April 21, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28444111/pattern-recognition-receptors-immune-targets-to-enhance-cancer-immunotherapy
#20
T Shekarian, S Valsesia-Wittmann, J Brody, M C Michallet, S Depil, C Caux, A Marabelle
Durable tumor responses and significant levels of disease control rates have been described in more than 20 advanced/metastatic cancer types with B7-family immune checkpoint-targeted anti-CTLA-4, anti-PD-1, and anti-PD-L1 monoclonal antibodies. These results and the recent approvals of ipilimumab, pembrolizumab, nivolumab and atezolizumab are currently revolutionizing the way we envision the future of cancer care. However these clinical benefits are not observed in all cancer types and in every patient. Therefore, our clinical challenge is to identify therapeutic strategies which could overcome the primary and secondary resistances to these novel cancer immunotherapies...
April 21, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
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