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https://www.readbyqxmd.com/read/28822202/-q-marker-of-chinese-medicine-and-metabolic-regularity-of-co-network-compatibility-and-rainbow-potential
#1
Yan-Tao Yang, Sen Li, Jin-Ling Liu, Jin Zhou, Yi-Qun Zhou, Nai-Hong Chen, Fu-Yuan He
The effect of Chinese medicine (CM) compound prescription is the combined action results of single herbs based on the basic theory of Chinese medicine, and its function embodies the characteristics of multi components, multi targets and comprehensive effects. It is difficult to study the therapeutic material, establish quality standards or determine Q-marker, so we can't strictly monitor the quality of the whole process of CM. The identification of Q-marker has a profound influence on the whole process of the pharmaceutical engineering of CM...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28815363/the-use-of-natural-language-processing-on-pediatric-diagnostic-radiology-reports-in-the-electronic-health-record-to-identify-deep-venous-thrombosis-in-children
#2
Jorge A Gálvez, Janine M Pappas, Luis Ahumada, John N Martin, Allan F Simpao, Mohamed A Rehman, Char Witmer
Venous thromboembolism (VTE) is a potentially life-threatening condition that includes both deep vein thrombosis (DVT) and pulmonary embolism. We sought to improve detection and reporting of children with a new diagnosis of VTE by applying natural language processing (NLP) tools to radiologists' reports. We validated an NLP tool, Reveal NLP (Health Fidelity Inc, San Mateo, CA) and inference rules engine's performance in identifying reports with deep venous thrombosis using a curated set of ultrasound reports...
August 16, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28815103/search-datasets-in-literature-a-case-study-of-gwas
#3
Xiao Dong, Yaoyun Zhang, Hua Xu
One of the missions of the NIH BD2K (Big Data to Knowledge) initiative is to make data discoverable and promote the re-use of existing datasets. Our ultimate goal is to develop a scalable approach that can automatically scan millions of scientific publications and identify underlying data sets. Using Genome-Wide Association Studies (GWAS) as a use case, we conducted an initial study to identify GWAS dataset attributes in MEDLINE abstracts, by developing a hybrid approach that combines domain dictionaries and pattern-based rules...
2017: AMIA Summits on Translational Science Proceedings
https://www.readbyqxmd.com/read/28811649/spin-selective-transmission-and-devisable-chirality-in-two-layer-metasurfaces
#4
Zhancheng Li, Wenwei Liu, Hua Cheng, Shuqi Chen, Jianguo Tian
Chirality is a nearly ubiquitous natural phenomenon. Its minute presence in most naturally occurring materials makes it incredibly difficult to detect. Recent advances in metasurfaces indicate that they exhibit devisable chirality in novel forms; this finding offers an effective opening for studying chirality and its features in such nanostructures. These metasurfaces display vast possibilities for highly sensitive chirality discrimination in biological and chemical systems. Here, we show that two-layer metasurfaces based on twisted nanorods can generate giant spin-selective transmission and support engineered chirality in the near-infrared region...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808836/excitation-transfer-and-trapping-kinetics-in-plant-photosystem-i-probed-by-two-dimensional-electronic-spectroscopy
#5
Parveen Akhtar, Cheng Zhang, Zhengtang Liu, Howe-Siang Tan, Petar H Lambrev
Photosystem I is a robust and highly efficient biological solar engine. Its capacity to utilize virtually every absorbed photon's energy in a photochemical reaction generates great interest in the kinetics and mechanisms of excitation energy transfer and charge separation. In this work, we have employed room-temperature coherent two-dimensional electronic spectroscopy and time-resolved fluorescence spectroscopy to follow exciton equilibration and excitation trapping in intact Photosystem I complexes as well as core complexes isolated from Pisum sativum...
August 14, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28799524/photovoltaic-efficiency-of-intermediate-band-solar-cells-based-on-cdte-cdmnte-coupled-quantum-dots
#6
Silvio J Prado, Gilmar Eugenio Marques, Augusto Alcalde
In this work we show calculation of optimized efficiencies of intermediate band solar cells (IBSC) based on Mn-doped II-VI CdTe/CdMnTe coupled quantum dot (QD) structures. We focus our attention on the combined effects of geometrical and Mn-doping parameters on the optical properties and solar cell efficiency. In the framework of k . p theory, we accomplished detailed calculations of electronic structure, transition energies, optical selection rules and their corresponding intra- and interband oscillator strengths...
August 11, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28794161/how-pigeons-couple-three-dimensional-elbow-and-wrist-motion-to-morph-their-wings
#7
Amanda K Stowers, Laura Y Matloff, David Lentink
Birds change the shape and area of their wings to an exceptional degree, surpassing insects, bats and aircraft in their ability to morph their wings for a variety of tasks. This morphing is governed by a musculoskeletal system, which couples elbow and wrist motion. Since the discovery of this effect in 1839, the planar 'drawing parallels' mechanism has been used to explain the coupling. Remarkably, this mechanism has never been corroborated from quantitative motion data. Therefore, we measured how the wing skeleton of a pigeon (Columba livia) moves during morphing...
August 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28773064/a-combined-high-and-low-cycle-fatigue-model-for-life-prediction-of-turbine-blades
#8
Shun-Peng Zhu, Peng Yue, Zheng-Yong Yu, Qingyuan Wang
Combined high and low cycle fatigue (CCF) generally induces the failure of aircraft gas turbine attachments. Based on the aero-engine load spectrum, accurate assessment of fatigue damage due to the interaction of high cycle fatigue (HCF) resulting from high frequency vibrations and low cycle fatigue (LCF) from ground-air-ground engine cycles is of critical importance for ensuring structural integrity of engine components, like turbine blades. In this paper, the influence of combined damage accumulation on the expected CCF life are investigated for turbine blades...
June 26, 2017: Materials
https://www.readbyqxmd.com/read/28753705/-workers-compensation-claims-for-needlestick-injuries-among-healthcare-personnel-in-hospitals-doctors-surgeries-and-nursing-institutions
#9
Madeleine Dulon, Birgit Lisiak, Dana Wendeler, Albert Nienhaus
Objective The "Technical rules for biological agents in healthcare and welfare facilities" (TRBA 250) came into force in March 2014 in Germany and deals with protective measures to prevent needlestick injuries (NSI). The present study covers the period of 6 months after TRBA 250 came into force. The study had 2 objectives: to investigate whether hospitals, doctors' surgeries and care facilities differ with respect to the causes of needlestick injuries (NSI) and to collect data on availability and implementation of safety-engineered devices (SED) in these healthcare settings workplaces...
July 28, 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28751638/targeted-dna-methylation-in-human-cells-using-engineered-dcas9-methyltransferases
#10
Tina Xiong, Glenna E Meister, Rachael E Workman, Nathaniel C Kato, Michael J Spellberg, Fulya Turker, Winston Timp, Marc Ostermeier, Carl D Novina
Mammalian genomes exhibit complex patterns of gene expression regulated, in part, by DNA methylation. The advent of engineered DNA methyltransferases (MTases) to target DNA methylation to specific sites in the genome will accelerate many areas of biological research. However, targeted MTases require clear design rules to direct site-specific DNA methylation and minimize the unintended effects of off-target DNA methylation. Here we report a targeted MTase composed of an artificially split CpG MTase (sMTase) with one fragment fused to a catalytically-inactive Cas9 (dCas9) that directs the functional assembly of sMTase fragments at the targeted CpG site...
July 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28748430/inicu-integrated-neonatal-care-unit-capturing-neonatal-journey-in-an-intelligent-data-way
#11
Harpreet Singh, Gautam Yadav, Raghuram Mallaiah, Preetha Joshi, Vinay Joshi, Ravneet Kaur, Suneyna Bansal, Samir K Brahmachari
Neonatal period represents first 28 days of life, which is the most vulnerable time for a child's survival especially for the preterm babies. High neonatal mortality is a prominent and persistent problem across the globe. Non-availability of trained staff and infrastructure are the major recognized hurdles in the quality care of these neonates. Hourly progress growth charts and reports are still maintained manually by nurses along with continuous calculation of drug dosage and nutrition as per the changing weight of the baby...
August 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28746304/complex-cellular-logic-computation-using-ribocomputing-devices
#12
Alexander A Green, Jongmin Kim, Duo Ma, Pamela A Silver, James J Collins, Peng Yin
Synthetic biology aims to develop engineering-driven approaches to the programming of cellular functions that could yield transformative technologies. Synthetic gene circuits that combine DNA, protein, and RNA components have demonstrated a range of functions such as bistability, oscillation, feedback, and logic capabilities. However, it remains challenging to scale up these circuits owing to the limited number of designable, orthogonal, high-performance parts, the empirical and often tedious composition rules, and the requirements for substantial resources for encoding and operation...
August 3, 2017: Nature
https://www.readbyqxmd.com/read/28738801/charged-residues-next-to-transmembrane-regions-revisited-positive-inside-rule-is-complemented-by-the-negative-inside-depletion-outside-enrichment-rule
#13
James Alexander Baker, Wing-Cheong Wong, Birgit Eisenhaber, Jim Warwicker, Frank Eisenhaber
BACKGROUND: Transmembrane helices (TMHs) frequently occur amongst protein architectures as means for proteins to attach to or embed into biological membranes. Physical constraints such as the membrane's hydrophobicity and electrostatic potential apply uniform requirements to TMHs and their flanking regions; consequently, they are mirrored in their sequence patterns (in addition to TMHs being a span of generally hydrophobic residues) on top of variations enforced by the specific protein's biological functions...
July 24, 2017: BMC Biology
https://www.readbyqxmd.com/read/28737822/liquid-crystal-templating-as-an-approach-to-spatially-and-temporally-organise-soft-matter
#14
REVIEW
Pim van der Asdonk, Paul H J Kouwer
Chemistry quickly moves from a molecular science to a systems science. This requires spatial and temporal control over the organisation of molecules and molecular assemblies. Whilst Nature almost by default (transiently) organises her components at multiple different length scales, scientists struggle to realise even relatively straightforward patterns. In the past decades, supramolecular chemistry has taught us the rules to precisely engineer molecular assembly at the nanometre scale. At higher length scales, however, we are bound to top-down nanotechnology techniques to realise order...
July 24, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28731353/altering-dna-programmable-colloidal-crystallization-paths-by-modulating-particle-repulsion
#15
Mary X Wang, Jeffrey D Brodin, Jaime A Millan, Soyoung E Seo, Martin Girard, Monica Olvera de la Cruz, Byeongdu Lee, Chad A Mirkin
Colloidal crystal engineering with DNA can be used to realize precise control over nanoparticle (NP) arrangement. Here, we investigate a case of DNA-based assembly where the properties of DNA as a polyelectrolyte brush are employed to alter a hybridization-driven NP crystallization pathway. Using the coassembly of DNA-conjugated proteins and spherical gold nanoparticles (AuNPs) as a model system, we explore how steric repulsion between noncomplementary, neighboring NPs due to overlapping DNA shells can influence their ligand-directed behavior...
July 21, 2017: Nano Letters
https://www.readbyqxmd.com/read/28727446/reductive-outer-sphere-single-electron-transfer-is-an-exception-rather-than-the-rule-in-natural-and-engineered-chlorinated-ethene-dehalogenation
#16
Benjamin Heckel, Stefan Cretnik, Sarah Kliegman, Orfan Shouakar-Stash, Kristopher McNeill, Martin Elsner
Chlorinated ethenes (CEs) such as perchloroethylene, trichloroethylene and dichloroethylene are notorious groundwater contaminants. Although reductive dehalogenation is key to their environmental and engineered degradation, underlying reaction mechanisms remain elusive. Outer-sphere reductive single electron transfer (OS-SET) has been proposed for such different processes as Vitamin B12-dependent biodegradation and zerovalent metal-mediated dehalogenation. Compound-specific isotope effect ((13)C/(12)C, (37)Cl/(35)Cl) analysis offers a new opportunity to test these hypotheses...
August 16, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28725018/morphology-transition-engineering-of-zno-nanorods-to-nanoplatelets-grafted-mo8o23-moo2-by-polyoxometalates-mechanism-and-possible-applicability-to-other-oxides
#17
Ahmed H Abdelmohsen, Waleed M A El Rouby, Nahla Ismail, Ahmed A Farghali
A new fundamental mechanism for reliable engineering of zinc oxide (ZnO) nanorods to nanoplatelets grafted Mo8O23-MoO2 mixed oxide with controlled morphology, composition and precise understanding of the nanoscale reaction mechanism was developed. These hybrid nanomaterials are gaining interest due to their potential use for energy, catalysis, biomedical and other applications. As an introductory section, we demonstrate a new expansion for the concept 'materials engineering' by discussing the fabrication of metal oxides nanostructures by bottom-up approach and carbon nanoparticles by top-down approach...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28702631/assembly-of-multi-flavored-two-dimensional-colloidal-crystals
#18
Nathan A Mahynski, Hasan Zerze, Harold W Hatch, Vincent K Shen, Jeetain Mittal
We systematically investigate the assembly of binary multi-flavored colloidal mixtures in two dimensions. In these mixtures all pairwise interactions between species may be tuned independently. This introduces an additional degree of freedom over more traditional binary mixtures with fixed mixing rules, which is anticipated to open new avenues for directed self-assembly. At present, colloidal self-assembly into non-trivial lattices tends to require either high pressures for isotropically interacting particles, or the introduction of directionally anisotropic interactions...
August 16, 2017: Soft Matter
https://www.readbyqxmd.com/read/28690384/continuity-conditions-for-q-b%C3%A3-zier-curves-of-degree-n
#19
Gang Hu, Cuicui Bo, Xinqiang Qin
As a new method of representing curves, Q-Bézier curves not only exhibit the beneficial properties of Bézier curves but also allow effective shape adjustment by changing multiple shape parameters. In order to resolve the problem of not being able to construct complex curves using a single curve, we study the geometric continuity conditions for Q-Bézier curves of degree n. Following the analysis of basis functions and terminal properties of Q-Bézier curves of degree n, the continuity conditions of [Formula: see text] and [Formula: see text] between two adjacent Q-Bézier curves are proposed...
2017: Journal of Inequalities and Applications
https://www.readbyqxmd.com/read/28688619/explicit-analytical-tuning-rules-for-digital-pid-controllers-via-the-magnitude-optimum-criterion
#20
Konstantinos G Papadopoulos, Praveen K Yadav, Nikolaos I Margaris
Analytical tuning rules for digital PID type-I controllers are presented regardless of the process complexity. This explicit solution allows control engineers 1) to make an accurate examination of the effect of the controller's sampling time to the control loop's performance both in the time and frequency domain 2) to decide when the control has to be I, PI and when the derivative, D, term has to be added or omitted 3) apply this control action to a series of stable benchmark processes regardless of their complexity...
July 5, 2017: ISA Transactions
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