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https://www.readbyqxmd.com/read/29786694/spin-supersolid-phase-in-coupled-alternating-spin-chains
#1
F Heydarinasab, J Abouie
We study the ground state phase diagram of a two dimensional mixed-spin system of coupled alternating spin-1 and 1/2 chains with a stripe supersolid phase. Utilizing different analytical and numerical approaches such as mean field approximation, cluster mean field theory and linear spin wave theory, we demonstrate that our system displays a rich ground state phase diagram including novel stripe supersolid, solids with different fillings and super-counterfluid phases, in addition to a stripe solid with half filling, superfluid and Mott insulating phases...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29779119/a-chemosensitizer-drug-disulfiram-prevents-doxorubicin-induced-cardiac-dysfunction-and-oxidative-stress-in-rats
#2
Varsha K Sonawane, Umesh B Mahajan, Sachin D Shinde, Subhajit Chatterjee, Sandip S Chaudhari, Harshada A Bhangale, Shreesh Ojha, Sameer N Goyal, Chanakya N Kundu, Chandragouda R Patil
In the present study, the preventive effects of orally administered disulfiram (DS) against the doxorubicin (DOX)-induced cardiotoxicity were investigated in rats. DS was orally administered for 7 days at doses of 2, 10, and 50 mg/kg/day. DOX (30 mg/kg) was intraperitoneally administered on the 5th day of the initiation of DS treatment. Within 48 h of injection, DOX treatment significantly altered ECG, elevated the ST height, and increased the QT and QRS intervals. It reduced the cardiac levels of injury markers like creatine kinase isoenzyme-MB and lactate dehydrogenase...
May 10, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29771329/regulation-of-the-neuropathy-associated-pmp22-gene-by-a-distal-super-enhancer
#3
Harrison Pantera, John J Moran, Holly A Hung, Evgenia Pak, Amalia Dutra, John Svaren
Peripheral nerve myelination is adversely affected in the most common form of the hereditary peripheral neuropathy called Charcot-Marie-Tooth Disease. This form, classified as CMT1A, is caused by a 1.4 Mb duplication on chromosome 17, which includes the abundantly expressed Schwann cell myelin gene, Peripheral Myelin Protein 22 (PMP22). This is one of the most common copy number variants causing neurological disease. Overexpression of Pmp22 in rodent models recapitulates several aspects of neuropathy, and reduction of Pmp22 in such models results in amelioration of the neuropathy phenotype...
May 16, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29769044/visualizing-histopathologic-deep-learning-classification-and-anomaly-detection-using-nonlinear-feature-space-dimensionality-reduction
#4
Kevin Faust, Quin Xie, Dominick Han, Kartikay Goyle, Zoya Volynskaya, Ugljesa Djuric, Phedias Diamandis
BACKGROUND: There is growing interest in utilizing artificial intelligence, and particularly deep learning, for computer vision in histopathology. While accumulating studies highlight expert-level performance of convolutional neural networks (CNNs) on focused classification tasks, most studies rely on probability distribution scores with empirically defined cutoff values based on post-hoc analysis. More generalizable tools that allow humans to visualize histology-based deep learning inferences and decision making are scarce...
May 16, 2018: BMC Bioinformatics
https://www.readbyqxmd.com/read/29755918/coq10-a-super-vitamin-review-on-application-and-biosynthesis
#5
REVIEW
Shraddha Shukla, Kashyap Kumar Dubey
Coenzyme Q10 (CoQ) or ubiquinone is found in the biological system which is synthesized by the conjugation of benzoquinone ring with isoprenoid chain of variable length. Coenzyme Q10 supplementation energizes the body and increases body energy production in the form of ATP and helps to treat various human diseases such as cardiomyopathy, muscular dystrophy, periodontal disease, etc. Reports of these potential therapeutic advantages of CoQ10 have resulted in its high market demand, which focus the researchers to work on this molecule and develop better bioprocess methods for commercial level production...
May 2018: 3 Biotech
https://www.readbyqxmd.com/read/29748498/single-viruses-on-the-fluorescence-microscope-imaging-molecular-mobility-interactions-and-structure-sheds-new-light-on-viral-replication
#6
REVIEW
Nagma Parveen, Doortje Borrenberghs, Susana Rocha, Jelle Hendrix
Viruses are simple agents exhibiting complex reproductive mechanisms. Decades of research have provided crucial basic insights, antiviral medication and moderately successful gene therapy trials. The most infectious viral particle is, however, not always the most abundant one in a population, questioning the utility of classic ensemble-averaging virology. Indeed, viral replication is often not particularly efficient, prone to errors or containing parallel routes. Here, we review different single-molecule sensitive fluorescence methods that we employ routinely to investigate viruses...
May 10, 2018: Viruses
https://www.readbyqxmd.com/read/29745676/an-extensive-theoretical-study-of-the-thermochemical-properties-of-unsaturated-hydrocarbons-allylic-and-super-allylic-radicals-the-development-and-optimization-of-group-additivity-values
#7
Yang Li, Henry J Curran
In this study, the thermochemistry of C2 - C7 unsaturated hydrocarbons (22 alkene and 6 diene molecules), 16 allylic and 5 super-allylic radicals are determined using high-accuracy quantum chemistry calculations. In addition, the group additivity values (GAVs) of a total of 19 relevant groups are systematically optimized based on the calculated thermochemistry of species clusters. The M06-2X method using the 6-311++G(d,p) basis set is used for the geometry optimizations, vibrational frequency calculations and for the internal rotation scans for lower frequency modes...
May 10, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29743503/qsr-a-quantitative-super-resolution-analysis-tool-reveals-the-cell-cycle-dependent-organization-of-rna-polymerase-i-in-live-human-cells
#8
J O Andrews, W Conway, W -K Cho, A Narayanan, J -H Spille, N Jayanth, T Inoue, S Mullen, J Thaler, I I Cissé
We present qSR, an analytical tool for the quantitative analysis of single molecule based super-resolution data. The software is created as an open-source platform integrating multiple algorithms for rigorous spatial and temporal characterizations of protein clusters in super-resolution data of living cells. First, we illustrate qSR using a sample live cell data of RNA Polymerase II (Pol II) as an example of highly dynamic sub-diffractive clusters. Then we utilize qSR to investigate the organization and dynamics of endogenous RNA Polymerase I (Pol I) in live human cells, throughout the cell cycle...
May 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29733581/dual-analyte-fluorescent-sensor-based-on-5-helicene-derivative-with-super-large-stokes-shift-for-the-selective-determinations-of-cu2-or-zn2-in-buffer-solutions-and-its-application-in-living-cell
#9
Siwakorn Sakunkaewkasem, Anuwut Petdum, Waraporn Panchan, Jitnapa Sirirak, Adisri Charoenpanich, Thanasat Sooksimuang, Nantanit Wanichacheva
A new fluorescent sensor, M201-DPA, based on [5]helicene derivative was utilized as dual-analyte sensor for determination of Cu2+ or Zn2+ in different media and different emission wavelengths. The sensor could provide selective and bifunctional determination of Cu2+ in HEPES buffer containing Triton-X100 and Zn2+ in Tris buffer/methanol without the interfering from each other and other ions. In HEPES buffer, M201-DPA demonstrated the selective ON-OFF fluorescence quenching at 524 nm toward Cu2+. On the other hand, in Tris buffer/methanol, M201-DPA showed the selective OFF-ON fluorescence enhancement upon the addition of Zn2+, which was specified by the hypsochromic shift at 448 nm...
May 7, 2018: ACS Sensors
https://www.readbyqxmd.com/read/29715922/freeform-engineered-disordered-metalenses-for-super-resolution-imaging-and-communication
#10
Mohammad Haghtalab, Safieddin Safavi-Naeini
Effective transmission of information through scattering media has been of great importance in imaging systems and beneficial to high capacity wireless communication. Despite numerous attempts to achieve high-resolution sub-diffraction-limited imaging through employing the engineered structures such as the so-called metamaterials or utilizing techniques like time reversal methods, the proposed ideas suffer from the fundamental limitations for design and practical realization. In this paper, we investigate disorder-based engineered scattering structures and introduce a novel technique for achieving super-resolution based on designing and employing engineered all-dielectric medium...
April 16, 2018: Optics Express
https://www.readbyqxmd.com/read/29715761/generating-a-three-dimensional-hollow-spot-with-sub-diffraction-transverse-size-by-a-focused-cylindrical-vector-wave
#11
Zhixiang Wu, Qijian Jin, Shuo Zhang, Kun Zhang, Lingfang Wang, Luru Dai, Zhongquan Wen, Zhihai Zhang, Gaofeng Liang, Yufei Liu, Gang Chen
A three-dimensional (3D) hollow spot is of great interest for a wide variety of applications such as microscopy, lithography, data storage, optical manipulation, and optical manufacturing. Based on conventional high-numerical-aperture objective lenses, various methods have been proposed for the generation of 3D hollow spots for different polarizations. However, conventional optics are bulky, costly, and difficult to integrate. More importantly, they are diffraction-limited in nature. Owing to their unique properties of small size, light weight, and ease of integration, planar lenses have become attractive as components in the development of novel optical devices...
April 2, 2018: Optics Express
https://www.readbyqxmd.com/read/29714756/terahertz-super-resolution-imaging-using-four-wave-mixing-in-graphene
#12
Jiang-Yu Liu, Tie-Jun Huang, Pu-Kun Liu
A perfect lens made from negative refraction (NR) materials is utilized to overcome the diffraction limit. However, these NR lenses are realized by metamaterials, which suffer from high losses, and the volume is bulky. In this Letter, we propose a terahertz NR lens by using a four-wave mixing (FWM) process in graphene. NR is demonstrated because of the phase matching along the surface of graphene. Evanescent waves that store high spatial frequency information can be converted into propagating waves in the nonlinear NR process...
May 1, 2018: Optics Letters
https://www.readbyqxmd.com/read/29705624/eq-5d-based-utilities-and-healthcare-utilization-in-thai-adults-with-chronic-epilepsy
#13
Panumart Phumart, Chulaporn Limwattananon, Pimprapa Kitwitee, Kanjana Unnwongse, Somsak Tiamkao
Quality of life and resource use are key parameters that justify economic values in treatments for epilepsy. Health profiles and service utilization were assessed in 224 adults with 15.7years of epilepsy in two super-tertiary care facilities in Thailand. The European Quality of Life, 5-Dimension (EQ-5D)-based utilities and subsequent outpatient (OP) visits and hospitalizations were determined with respect to seizure control outcomes that were assessed by neurologists. Mean utility and visual analogue scale (VAS) scores were respectively higher in 67 patients who are seizure-free (0...
April 26, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29687284/an-improved-ternary-vector-system-for-agrobacterium-mediated-rapid-maize-transformation
#14
Ajith Anand, Steven H Bass, Emily Wu, Ning Wang, Kevin E McBride, Narayana Annaluru, Michael Miller, Mo Hua, Todd J Jones
A simple and versatile ternary vector system that utilizes improved accessory plasmids for rapid maize transformation is described. This system facilitates high-throughput vector construction and plant transformation. The super binary plasmid pSB1 is a mainstay of maize transformation. However, the large size of the base vector makes it challenging to clone, the process of co-integration is cumbersome and inefficient, and some Agrobacterium strains are known to give rise to spontaneous mutants resistant to tetracycline...
April 23, 2018: Plant Molecular Biology
https://www.readbyqxmd.com/read/29684678/hydrogen-bonds-autonomously-powered-gelatin-methacrylate-hydrogels-with-super-elasticity-self-heal-and-underwater-self-adhesion-for-sutureless-skin-and-stomach-surgery-and-e-skin
#15
Bingcheng Liu, Ying Wang, Yong Miao, Xinyu Zhang, Zhexiang Fan, Gurankit Singh, Xingying Zhang, Kaige Xu, Bingyun Li, Zhiqi Hu, Malcolm Xing
Interface-interaction induced self-healing and self-adhesive are a gem-like attribute inspired by our Mother Nature. Biocompatible gelatin methacrylate (GelMA) hydrogels exhibit tunable mechanical properties which are favorable in biomedical applications. However, it is difficult to integrate high stiffness, super-elasticity, large deformability and self-healing property together. Here, we report a GelMA-based double-network (DN) hydrogel with above properties by utilizing tannic acid (TA) as a multi-functional H-bond provider...
April 15, 2018: Biomaterials
https://www.readbyqxmd.com/read/29679242/automatic-organ-segmentation-for-ct-scans-based-on-super-pixel-and-convolutional-neural-networks
#16
Xiaoming Liu, Shuxu Guo, Bingtao Yang, Shuzhi Ma, Huimao Zhang, Jing Li, Changjian Sun, Lanyi Jin, Xueyan Li, Qi Yang, Yu Fu
Accurate segmentation of specific organ from computed tomography (CT) scans is a basic and crucial task for accurate diagnosis and treatment. To avoid time-consuming manual optimization and to help physicians distinguish diseases, an automatic organ segmentation framework is presented. The framework utilized convolution neural networks (CNN) to classify pixels. To reduce the redundant inputs, the simple linear iterative clustering (SLIC) of super-pixels and the support vector machine (SVM) classifier are introduced...
April 20, 2018: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/29674094/solvent-free-production-of-nano-fes-anchored-graphene-from-ulva-fasciata-a-scalable-synthesis-of-super-adsorbent-for-lead-chromium-and-dyes
#17
Ashesh Mahto, Anshu Kumar, Jai Prakash Chaudhary, Madhuri Bhatt, Atul Kumar Sharma, Parimal Paul, Sanna Kotrappanavar Nataraj, Ramavatar Meena
Here we demonstrate, a simple and solvent-free synthetic route for the production of FeS/Fe(0) functionalized graphene nanocomposite (G-Fe) via a one-step pyrolysis of seaweed biomass (Ulva fasciata). It is proposed that the natural abundance of both inorganic and organic sulfur in the seaweed induces the reduction of exfoliated graphitic sheets at elevated temperatures. FeCl3 was employed both as the iron precursor as well as the templating agent. Iron doping played a dual-faceted role of exfoliating as well as activating agent, producing composite with high adsorption capacity for Pb2+ (645 ± 10 mg/g), CR (970 mg/g), CV(909 mg/g), MO (664 mg/g), MB (402 mg/g) dyes and good recyclability (8 cycles)...
March 28, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29659174/water-soluble-phospholo-3-2-b-phosphole-p-p-dioxide-based-fluorescent-dyes-with-high-photostability
#18
Chenguang Wang, Aiko Fukazawa, Yoshiyuki Tanabe, Naoto Inai, Daisuke Yokogawa, Shigehiro Yamaguchi
We have recently reported the fluorescent dye PB430, which consists of a 2-phenyl-substituted benzophosphole P-oxide skeleton that is reinforced with a methylene bridge. PB430 showed pronounced photostability and thus high utility for applications in super-resolution stimulated emission depletion (STED) microscopy. In the present study, we replaced the methylene bridge with another P=O group to (i) investigate the role of the bridging moieties, and (ii) further modulate the fluorescence properties. We synthesized a series of phospholo[3,2-b]phosphole-based dyes, i...
April 16, 2018: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/29649278/quantitative-surveillance-of-shiga-toxins-1-and-2-escherichia-coli-o178-and-o157-in-feces-of-western-canadian-slaughter-cattle-enumerated-by-droplet-digital-pcr-with-a-focus-on-seasonality-and-slaughterhouse-location
#19
Sarah-Jo Paquette, Kim Stanford, James Thomas, Tim Reuter
Often Escherichia coli are harmless and/or beneficial bacteria inhabiting the gastrointestinal tract of livestock and humans. However, Shiga toxin-producing E. coli (STEC) have been linked to human disease. Cattle are the primary reservoir for STEC and STEC "super-shedders" are considered to be a major contributor in animal to animal transmission. Among STEC, O157:H7 is the most recognized serotype, but in recent years, non-O157 STEC have been increasingly linked to human disease. In Argentina and Germany, O178 is considered an emerging pathogen...
2018: PloS One
https://www.readbyqxmd.com/read/29623636/an-exploratory-study-a-head-to-head-comparison-of-the-eq-5d-5l-and-aqol-8d-for-long-term-publicly-waitlisted-bariatric-surgery-patients-before-and-3-months-after-bariatric-surgery
#20
Julie A Campbell, Martin Hensher, Amanda Neil, Alison Venn, Petr Otahal, Stephen Wilkinson, Andrew J Palmer
BACKGROUND: Choice of a multi-attribute utility instrument (MAUI) that appropriately assesses an intervention's health-related quality-of-life (HRQoL) impacts is a vital part of healthcare resource allocation and clinical assessment. OBJECTIVE: Our exploratory study compared the EuroQol (EQ)-5D-5L and Assessment of Quality of Life (AQoL)-8D MAUIs, which were used to assess the effect of bariatric surgery for a cohort of long-term publicly waitlisted, severely obese patients...
November 13, 2017: PharmacoEconomics Open
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