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Emergency Efficiency

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https://www.readbyqxmd.com/read/29341604/ce3-doping-to-modulate-photoluminescence-kinetics-for-efficient-cspbbr3-nanocrystals-based-light-emitting-diodes
#1
Jisong Yao, Jing Ge, Bo-Ning Han, Kun-Hua Wang, Hong-Bin Yao, Hao-Lei Yu, Jian-Hai Li, Bai-Sheng Zhu, Jizhong Song, Chen Chen, Qun Zhang, Haibo Zeng, Yi Luo, Shu-Hong Yu
Inorganic perovskite CsPbBr3 nanocrystals (NCs) are emerging, highly attractive light emitters with high color purity and good thermal stability for light-emitting diodes (LEDs). Their high photo/electroluminescence efficiencies are very important for fabricating efficient LEDs. Here, we propose a novel strategy to enhance the photo/electroluminescence efficiency of CsPbBr3 NCs through doping of heterovalent Ce3+ ions via a facile hot-injection method. The Ce3+ cation was chosen as the dopant for CsPbBr3 NCs by virtue of its similar ion radius and formation of higher energy level of conduction band with bromine in comparison with the Pb2+ cation to maintain the integrity of perovskite structure without introducing additional trap states...
January 17, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29341603/pokmt1-from-the-polyketomycin-biosynthetic-machinery-of-streptomyces-diastatochromogenes-t%C3%A3-6028-belongs-to-the-emerging-family-of-c-methyltransferases-that-act-on-coa-activated-aromatic-substrates
#2
Xun Guo, Ivana Crnovcic, Chin-Yuan Chang, Jun Luo, Jeremy R Lohman, Monica Papinski, Andreas Bechthold, Geoffrey P Horsman, Ben Shen
Recent biochemical characterizations of the MdpB2 CoA ligase and MdpB1 C-methyltransferase (C-MT) from the maduropeptin (MDP, 2) biosynthetic machinery revealed unusual pathway logic involving C-methylation occurring on a CoA-activated aromatic substrate. Here we confirmed this pathway logic for the biosynthesis of polyketomycin (POK, 3). Biochemical characterization unambiguously established that PokM3 and PokMT1 catalyze the sequential conversion of 6-methylsalicylic acid (6-MSA, 4) to form 3,6-dimethylsalicylyl-CoA (3,6-DMSA-CoA, 6), which serves as the direct precursor for the 3,6-dimethylsalicylic acid (3,6-DMSA) moiety in the biosynthesis of 3...
January 17, 2018: Biochemistry
https://www.readbyqxmd.com/read/29341227/pet-radiometals-for-antibody-labeling
#3
Eduardo Aluicio-Sarduy, Paul A Ellison, Todd E Barnhart, Weibo Cai, Robert Jerry Nickles, Jonathan W Engle
Recent advances in molecular characterization of tumors have made possible the emergence of new types of cancer therapies where the traditional cytotoxic drugs and nonspecific chemotherapy can be complemented with targeted molecular therapies. One of the main revolutionary treatments is the use of monoclonal antibodies (mAbs) that selectively target the disseminated tumor cells while sparing normal tissues. mAbs and related therapeutics can be efficiently radiolabeled with a wide range of radionuclides to facilitate preclinical and clinical studies...
January 17, 2018: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29340803/robust-exponential-memory-in-hopfield-networks
#4
Christopher J Hillar, Ngoc M Tran
The Hopfield recurrent neural network is a classical auto-associative model of memory, in which collections of symmetrically coupled McCulloch-Pitts binary neurons interact to perform emergent computation. Although previous researchers have explored the potential of this network to solve combinatorial optimization problems or store reoccurring activity patterns as attractors of its deterministic dynamics, a basic open problem is to design a family of Hopfield networks with a number of noise-tolerant memories that grows exponentially with neural population size...
January 16, 2018: Journal of Mathematical Neuroscience
https://www.readbyqxmd.com/read/29340447/-why-don-t-doctors-use-early-insulinization-therapy-in-patients-with-diabetes-mellitus-type-2-a-qualitative-approach-in-a-mexican-city
#5
Roberto Lagunes-Córdoba, Isaac Galindo-Guevara, Atalia Castillo Reyes, Citlalli Romero-Aparicio, Francisco Javier Rosas-Santiago
Early insulinization therapy is regarded as an efficient aid to improve long term control and quality of life in patients with diabetes mellitus type 2 (DM2). Nevertheless, both patients and medical staff confront barriers in using this therapeutic tool. This study employs a qualitative approach to explore the barriers to early insulinization among medical staff from the public sector in the city of Xalapa, Veracruz, México. Between 2015 and 2016, in-depth interviews were conducted with general and specialist physicians offering primary health care to patients with DM2...
October 2017: Salud Colectiva
https://www.readbyqxmd.com/read/29340409/dynamics-of-3d-carcinoma-cell-invasion-into-aligned-collagen
#6
Arja Ray, Rachel K Morford, Nima Ghaderi, David J Odde, Paolo P Provenzano
Carcinoma cells frequently expand and invade from a confined lesion, or multicellular clusters, into and through the stroma on the path to metastasis, often with an efficiency dictated by the architecture and composition of the microenvironment. Specifically, in desmoplastic carcinomas such as those of the breast, aligned collagen tracks provide contact guidance cues for directed cancer cell invasion. Yet, the evolving dynamics of this process of invasion remains poorly understood, in part due to difficulties in continuously capturing both spatial and temporal heterogeneity and progression to invasion in experimental systems...
January 17, 2018: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/29340404/a-highly-efficient-nucleophilic-substitution-reaction-between-r2p-o-h-and-triarylmethanols-to-synthesize-phosphorus-substituted-triarylmethanes
#7
Long Chen, Xin-Yue Fang, Yun-Xiang Zou
A highly efficient and general nucleophilic substitution reaction between dialkyl H-phosphonates or diarylphosphine oxides and triarylmethanols catalyzed by HOTf (trifluoromethanesulfonic acid) has been developed. It provides an atom-economical protocol for the synthesis of various symmetrical and unsymmetrical phosphorus-substituted triarylmethanes that constitute an emerging family of potent anticancer agents in rich diversity with 40 to 96% yields. The synthetic applicability of this protocol is demonstrated by gram-scale preparations...
January 17, 2018: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/29340286/cancer-imaging-phenomics-toolkit-quantitative-imaging-analytics-for-precision-diagnostics-and-predictive-modeling-of-clinical-outcome
#8
Christos Davatzikos, Saima Rathore, Spyridon Bakas, Sarthak Pati, Mark Bergman, Ratheesh Kalarot, Patmaa Sridharan, Aimilia Gastounioti, Nariman Jahani, Eric Cohen, Hamed Akbari, Birkan Tunc, Jimit Doshi, Drew Parker, Michael Hsieh, Aristeidis Sotiras, Hongming Li, Yangming Ou, Robert K Doot, Michel Bilello, Yong Fan, Russell T Shinohara, Paul Yushkevich, Ragini Verma, Despina Kontos
The growth of multiparametric imaging protocols has paved the way for quantitative imaging phenotypes that predict treatment response and clinical outcome, reflect underlying cancer molecular characteristics and spatiotemporal heterogeneity, and can guide personalized treatment planning. This growth has underlined the need for efficient quantitative analytics to derive high-dimensional imaging signatures of diagnostic and predictive value in this emerging era of integrated precision diagnostics. This paper presents cancer imaging phenomics toolkit (CaPTk), a new and dynamically growing software platform for analysis of radiographic images of cancer, currently focusing on brain, breast, and lung cancer...
January 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29339753/efficient-isolation-on-vero-dogslamtag-cells-and-full-genome-characterization-of-dolphin-morbillivirus-dmv-by-next-generation-sequencing
#9
Simone Peletto, Claudio Caruso, Francesco Cerutti, Paola Modesto, Cristina Biolatti, Alessandra Pautasso, Carla Grattarola, Federica Giorda, Sandro Mazzariol, Walter Mignone, Loretta Masoero, Cristina Casalone, Pier Luigi Acutis
The Dolphin Morbillivirus (DMV) genome from the first Mediterranean epidemic (1990-'92) is the only cetacean Morbillivirus that has been completely sequenced. Here, we report the first application of next generation sequencing (NGS) to morbillivirus infection of aquatic mammals. A viral isolate, representative of the 2006-'08 Mediterranean epidemic (DMV_IZSPLV_2008), efficiently grew on Vero.DogSLAMtag cells and was submitted to whole genome characterization by NGS. The final genome length was 15,673 nucleotides, covering 99...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339428/mucosal-infections-and-invasive-potential-of-nonencapsulated-streptococcus-pneumoniae-are-enhanced-by-oligopeptide-binding-proteins-alic-and-alid
#10
Jessica L Bradshaw, Haley R Pipkins, Lance E Keller, James K Pendarvis, Larry S McDaniel
Nonencapsulated Streptococcus pneumoniae (NESp) is an emerging human pathogen that colonizes the nasopharynx and is associated with noninvasive diseases such as otitis media (OM), conjunctivitis, and nonbacteremic pneumonia. Since capsule expression was previously thought to be necessary for establishment of invasive pneumococcal disease (IPD), serotype-specific polysaccharide capsules are targeted by currently licensed pneumococcal vaccines. Yet, NESp expressing oligopeptide binding proteins AliC and AliD have been isolated during IPD...
January 16, 2018: MBio
https://www.readbyqxmd.com/read/29339331/the-catalytic-destruction-of-antibiotic-tetracycline-by-sulfur-doped-manganese-oxide-s-mgo-nanoparticles
#11
Gholamreza Moussavi, Ali Mashayekh-Salehi, Kamyar Yaghmaeian, Anoshiravan Mohseni-Bandpei
The present study evaluates the efficacy of S-doped MgO (S-MgO) as compared with the plain MgO as a catalyst for destructive removal of tetracycline (TTC) in aqueous solutions. The S-MgO had around 6% S in its structure. Doping MgO with S caused increase in surface oxygen vacancy defects. Adding S-MgO (12 g/L) to a TTC aqueous solution (50 mg/L) caused removal of around 99% TTC at the neutral pH (ca. 5.1) and a short reaction time of 10 min. In comparison, plain MgO could remove only around 15% of TTC under similar experimental conditions...
January 12, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29338960/small-airway-dysfunction-precedes-the-development-of-asthma-in-children-with-allergic-rhinitis
#12
E Skylogianni, M Triga, K Douros, K Bolis, K N Priftis, S Fouzas, M B Anthracopoulos
BACKGROUND: Epidemiological evidence suggests the existence of a direct link between allergic rhinitis (AR) and asthma. Several studies also support the presence of small-airway dysfunction (SAD) in non-asthmatic children with AR. However, it remains unknown whether SAD can predict the progression of AR to asthma. Our objective was to explore the existence of SAD in non-asthmatic children with AR and to assessed its ability to predict the development of asthma. METHODS: Seventy-three 6-year-old children with intermittent moderate-severe AR but without asthma symptoms/medication within the last two years, underwent spirometry and measurement of respiratory resistance (Rrs) and reactance (Xrs) before and after bronchodilation (BD) (300mcg salbutamol)...
January 12, 2018: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/29338013/dynamical-networks-of-influence-in-small-group-discussions
#13
Mehdi Moussaïd, Alejandro Noriega Campero, Abdullah Almaatouq
In many domains of life, business and management, numerous problems are addressed by small groups of individuals engaged in face-to-face discussions. While research in social psychology has a long history of studying the determinants of small group performances, the internal dynamics that govern a group discussion are not yet well understood. Here, we rely on computational methods based on network analyses and opinion dynamics to describe how individuals influence each other during a group discussion. We consider the situation in which a small group of three individuals engages in a discussion to solve an estimation task...
2018: PloS One
https://www.readbyqxmd.com/read/29337531/a-branched-glycerol-based-copolymer-with-ultrahigh-p65-sirna-delivery-efficiency-for-enhanced-cancer-therapy
#14
Li Zhou, Xiaoyan Qu, Yi Guo, Min Wang, Bo Lei, Peter X Ma
The small interfering RNA (siRNA) is emerging as a potential therapeutic for the treatment of various diseases, because of the targeted gene silencing capability. The suppression of p65 expression has shown great potential in various cancer treatments. However, various substantial obstacles limit their clinical applications, including low cellular uptake, instability and cytotoxicity of delivery vehicles. We show a highly branched and biocompatible glycerol-based copolymer (HBGCs) to effectively deliver siRNA for excellent p65 gene silencing and safe lung cancer treatment in vitro and in vivo...
January 16, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29337450/-emergency-medicine-update-2017
#15
Frédéric Rouyer, Fabrice Dami, Olivier Grosgurin, Valériane Rossier, Majd Ramlawi, Mathieu Pasquier, Olivier T Rutschmann
Emergency medicine is part of the current stream of efficient and qualitative medicine : 1) the modified Valsava maneuver results in the resolution of almost 50% of supra-ventricular tachycardia without any drug; 2) lung echography performed by emergency physicians is a very sensitive and specific diagnostic tool for most thoracic emergencies; 3) cardiopulmonary resuscitation initiated by lay-rescuers improves short and long-term outcome; 4) no anticoagulant treatment is warranted in distal deep vein thrombosis and 5) systematic unenhanced abdominal CT might improve evaluation of elderly patients with acute abdominal pain...
January 10, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29337372/crispr-cas9-edited-site-sequencing-cres-seq-an-efficient-and-high-throughput-method-for-the-selection-of-crispr-cas9-edited-clones
#16
Yaligara Veeranagouda, Delphine Debono-Lagneaux, Hamida Fournet, Gilbert Thill, Michel Didier
The emergence of clustered regularly interspaced short palindromic repeats-Cas9 (CRISPR-Cas9) gene editing systems has enabled the creation of specific mutants at low cost, in a short time and with high efficiency, in eukaryotic cells. Since a CRISPR-Cas9 system typically creates an array of mutations in targeted sites, a successful gene editing project requires careful selection of edited clones. This process can be very challenging, especially when working with multiallelic genes and/or polyploid cells (such as cancer and plants cells)...
January 16, 2018: Current Protocols in Molecular Biology
https://www.readbyqxmd.com/read/29336595/exploitation-of-microbial-antagonists-for-the-control-of-postharvest-diseases-of-fruits-a-review
#17
Ajinath Shridhar Dukare, Sangeeta Paul, V Eyarkai Nambi, Ram Kishore Gupta, Rajbir Singh, Kalyani Sharma, Rajesh Kumar Vishwakarma
Fungal diseases result in significant losses of fruits and vegetables during handling, transportation and storage. At present, post-production fungal spoilage is predominantly controlled by using synthetic fungicides. Under the global climate change scenario and with the need for sustainable agriculture, biological control methods of fungal diseases, using antagonistic microorganisms, are emerging as ecofriendly alternatives to the use of fungicides. The potential of microbial antagonists, isolated from a diversity of natural habitats, for postharvest disease suppression has been investigated...
January 16, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29336216/sulfamethoxazole-removal-in-membrane-photocatalytic-reactor-system-experimentation-and-modelling
#18
Raju C Asha, M S Priyanka Yadav, Mathava Kumar
In this study, the efficacy of membrane-photocatalytic reactor (MPR) in sulfamethoxazole (SMX) removal was explored at a fixed initial SMX concentration, i.e. 100 mg/L. A supported catalyst, i.e. TiO2 on granular activated carbon (GAC-TiO2), was used for MPR experiments. The SMX removal efficiency of the MPR was investigated under a range of hydraulic retention time (i.e. HRT from 51 ∼ 152.5 min) and TiO2 catalyst dosage (55 ∼ 550 mg/L). A maximum SMX removal efficiency of 83.6% was observed under 220 mg/L catalyst dosage and 80 min HRT...
January 16, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29335758/toxicity-of-diclofenac-in-the-fern-azolla-filiculoides-and-the-lichen-xanthoria-parietina
#19
Andrea Vannini, Luca Paoli, Marco Vichi, Martin Bačkor, Miriam Bačkorová, Stefano Loppi
This study investigated the occurrence of toxicity, expressed as damage to the photosynthetic apparatus, in the aquatic fern Azolla filiculoides and the lichen Xanthoria parietina following treatments with diclofenac at different concentrations (0.1, 1, 10 and 100 mg/L) and different exposure times (24, 48, 72 and 240 h). Measurements of photosynthetic efficiency, chlorophyll content and chlorophyll degradation indicated dose- and time-dependent toxicity, since significant differences with control samples as well as among treatments, emerged mainly for the highest concentration (100 mg/L) and the longest time (240 h)...
January 16, 2018: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29335173/application-of-fe3o4-mil-100-fe-core-shell-magnetic-microspheres-for-evaluating-the-sorption-of-organophosphate-esters-to-dissolved-organic-matter-dom
#20
Long Pang, Peijie Yang, Huiqiang Yang, Liming Ge, Jingwen Xiao, Yifan Zhou
Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers in many products and materials. Because of the potential biologic toxicity on human beings, OPEs are regarded as a class of emerging pollutants. Dissolved organic matters (DOM) have significant effects on the bioavailability and toxicity of the pollutants in the environment. Negligible-depletion solid-phase microextraction (nd-SPME) is an efficient way for measuring the freely dissolved pollutants but suffers from long equilibrium time...
January 12, 2018: Science of the Total Environment
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