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https://www.readbyqxmd.com/read/29342197/molecular-discrimination-of-tall-fescue-morphotypes-in-association-with-festuca-relatives
#1
Shyamal K Talukder, Perumal Azhaguvel, Konstantin Chekhovskiy, Malay C Saha
Tall fescue (Festuca arundinacea Schreb.) is an important cool-season perennial grass species used as forage and turf, and in conservation plantings. There are three morphotypes in hexaploid tall fescue: Continental, Mediterranean and Rhizomatous. This study was conducted to develop morphotype-specific molecular markers to distinguish Continental and Mediterranean tall fescues, and establish their relationships with other species of the Festuca genus for genomic inference. Chloroplast sequence variation and simple sequence repeat (SSR) polymorphism were explored in 12 genotypes of three tall fescue morphotypes and four Festuca species...
2018: PloS One
https://www.readbyqxmd.com/read/29341264/a-facile-method-to-fabricate-anisotropic-hydrogels-with-perfectly-aligned-hierarchical-fibrous-structures
#2
Md Tariful Islam Mredha, Yun Zhou Guo, Takayuki Nonoyama, Tasuku Nakajima, Takayuki Kurokawa, Jian Ping Gong
Natural structural materials (such as tendons and ligaments) are comprised of multiscale hierarchical architectures, with dimensions ranging from nano- to macroscale, which are difficult to mimic synthetically. Here a bioinspired, facile method to fabricate anisotropic hydrogels with perfectly aligned multiscale hierarchical fibrous structures similar to those of tendons and ligaments is reported. The method includes drying a diluted physical hydrogel in air by confining its length direction. During this process, sufficiently high tensile stress is built along the length direction to align the polymer chains and multiscale fibrous structures (from nano- to submicro- to microscale) are spontaneously formed in the bulk material, which are well-retained in the reswollen gel...
January 17, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29341077/assessing-use-errors-related-to-the-interface-design-of-electrosurgical-units
#3
Jamie L Estock, Airan Li, Maureen C Casey, Matthew A Taylor, Monique Y Boudreaux-Kelly, Martin D Choma, Katrina Jacobs, David E Eibling
Medical device use errors, such as instrument connection errors made with electrosurgical units (ESUs), can lead to adverse events. Current device acquisition processes at health care facilities do not typically include a proactive evaluation of use-error risk before device purchase. We conducted an evaluation to identify ESU user interface design features that can help prevent or mitigate instrument connection errors during clinical care. Thirty-six current ESU users participated in the evaluation. We used a randomized crossover design in which each participant used two ESU models in a simulated OR scenario...
January 2018: AORN Journal
https://www.readbyqxmd.com/read/29340980/facile-synthesis-of-chitosan-capped-mesoporous-silica-nanoparticles-a-ph-responsive-smart-delivery-platform-for-raloxifene-hydrochloride
#4
Priya V Shah, Sadhana J Rajput
An encapsulation of model drug raloxifene hydrochloride (RAL) inside the chitosan decorated pH responsive mesoporous system has a greater potential for accumulating in the tumor cells. The present study involves synthesis of surface modified mesoporous silica nanoparticles (MSN) with the aim of achieving pH sensitive drug delivery system. A silanol skeleton of MSN has been productively modified to amine intermediate which served as a firm platform to adapt chitosan grafted assembly and systematically evaluated...
January 16, 2018: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29340790/an-automated-framework-for-qsar-model-building
#5
Samina Kausar, Andre O Falcao
BACKGROUND: In-silico quantitative structure-activity relationship (QSAR) models based tools are widely used to screen huge databases of compounds in order to determine the biological properties of chemical molecules based on their chemical structure. With the passage of time, the exponentially growing amount of synthesized and known chemicals data demands computationally efficient automated QSAR modeling tools, available to researchers that may lack extensive knowledge of machine learning modeling...
January 16, 2018: Journal of Cheminformatics
https://www.readbyqxmd.com/read/29340408/expanding-pore-sizes-of-zif-8-derived-nitrogen-doped-microporous-carbon-via-c60-embedding-toward-improved-anode-performance-for-the-lithium-ion-battery
#6
Jian Guan, Xiongwu Zhong, Xiang Chen, Xianjun Zhu, Panlong Li, Jianhua Wu, Yalin Lu, Yan Yu, Shangfeng Yang
Porous carbon and nanocarbons have been extensively applied as anode materials for high-energy density lithium-ion batteries (LIBs). However, as another representative nanocarbon, fullerenes, such as C60, have been scarcely utilized in LIBs because of their poor electrochemical reversibility. Herein, we designed a novel C60-embedded nitrogen-doped microporous carbon material (denoted as C60@N-MPC), which was derived from a zeolitic imidazolate framework-8 (ZIF-8) precursor, demonstrating its promising application as a superior anode material for LIB...
January 17, 2018: Nanoscale
https://www.readbyqxmd.com/read/29339177/trends-in-reporting-histological-subtyping-of-renal-cell-carcinoma-association-with-cancer-center-type
#7
Ted Gansler, Stacey Fedewa, Mahul B Amin, Chun Chieh Lin, Ahmedin Jemal
Histological classification of renal cell carcinoma (RCC) has become increasingly important for clinical management. We identified 295,483 RCC diagnosed from 1998-2014 in the National Cancer Database (NCDB) to examine temporal trends in proportions of RCC with unspecified histology and several specific histologies from the 1998 and 2004 World Health Organization classifications of RCC. Further, multivariable log binomial analysis of 101,062 RCC diagnosed from 2010-2014 was used to determine whether the association of diagnosing/treating facility type and the proportion of unspecified RCC is independent of patient demographic and clinical factors...
January 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29338969/current-and-future-challenges-of-radiation-oncology-in-iran-a-report-from-the-iranian-society-of-clinical-oncology
#8
A Ameri, M Barzegartahamtan, M Ghavamnasiri, R Mohammadpour, H Dehghan, A Sebzari, K Novin, M Aloosh
AIMS: Growth of the cancer incidence rate in Iran has been very high in recent years. Therefore, the Iranian health care system should be prepared for the treatment of a huge number of patients in the foreseeable future. One of the most important treatment options for cancer is radiation. However, there is no comprehensive information on infrastructure for radiation oncology in this country. MATERIALS AND METHODS: In 2015, a questionnaire was designed by the Iranian Society of Clinical Oncology (ISCO) and all radiation oncology centres in the country were visited to determine four important components of radiation oncology services, including facilities, equipment, personnel and patients...
January 12, 2018: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/29338085/the-century-experiment-the-first-twenty-years-of-uc-davis-mediterranean-agroecological-experiment
#9
Kristina M Wolf, Emma E Torbert, Dennis Bryant, Martin Burger, R Ford Denison, Israel Herrera, Jan Hopmans, Will Horwath, Stephen Kaffka, Angela Y Y Kong, R F Norris, Johan Six, Thomas P Tomich, Kate M Scow
The Century Experiment at the Russell Ranch Sustainable Agriculture Facility at the University of California, Davis provides long-term agroecological data from row crop systems in California's Central Valley starting in 1993. The Century Experiment was initially designed to study the effects of a gradient of water and nitrogen availability on soil properties and crop performance in ten different cropping systems to measure tradeoffs and synergies between agricultural productivity and sustainability. Currently systems include 11 different cropping systems-consisting of four different crops and a cover crop mixture-and one native grass system...
January 16, 2018: Ecology
https://www.readbyqxmd.com/read/29338012/using-geospatial-techniques-to-develop-an-emergency-referral-transport-system-for-suspected-sepsis-patients-in-bangladesh
#10
Atique Iqbal Chowdhury, Rafiqul Haider, Abu Yousuf Md Abdullah, Aliki Christou, Nabeel Ashraf Ali, Ahmed Ehsnaur Rahman, Afrin Iqbal, Sanwarul Bari, D M Emdadul Hoque, Shams El Arifeen, Niranjan Kissoon, Charles P Larson
BACKGROUND: A geographic information system (GIS)-based transport network within an emergency referral system can be the key to reducing health system delays and increasing the chances of survival, especially during an emergency. We employed a GIS to design an emergency transport system for the rapid transfer of pregnant or early post-partum women, newborns, and children under 5 years of age with suspected sepsis under the Interrupting Pathways to Sepsis Initiative (IPSI) project. METHODS: A GIS database was developed by mapping the villages, roads, and relevant physical features of the study area...
2018: PloS One
https://www.readbyqxmd.com/read/29337662/studies-of-transgenic-mosquitoes-in-disease-endemic-countries-preparation-of-containment-facilities
#11
M Megan Quinlan, James Mutuku Mutunga, Abdoulaye Diabaté, Moussa Namountougou, Mamadou B Coulibaly, Lakamy Sylla, Jonathan Kayondo, Victor Balyesima, Lorna Clark, Mark Q Benedict, Peter Raymond
Novel approaches to area-wide control of vector species offer promise as additional tools in the fight against vectored diseases. Evaluation of transgenic insect strains aimed at field population control in disease-endemic countries may involve international partnerships and should be done in a stepwise approach, starting with studies in containment facilities. The preparations of both new-build and renovated facilities are described, including working with local and national regulations regarding land use, construction, and biosafety requirements, as well as international guidance to fill any gaps in regulation...
January 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29337526/carbon-nanotube-web-with-carboxylated-polythiophene-assist-for-high-performance-battery-electrodes
#12
Yo-Han Kwon, Jung Jin Park, Lisa M Housel, Krysten Minnici, Guoyan Zhang, Sujin R Lee, Seung Woo Lee, Zhongming Chen, Suguru Noda, Esther S Takeuchi, Kenneth J Takeuchi, Amy C Marschilok, Elsa Reichmanis
A carbon nanotube (CNT) web electrode comprising magnetite spheres and few-walled carbon nanotubes (FWNTs) linked by the carboxylated conjugated polymer, poly[3-(potassium-4-butanoate) thiophene] (PPBT), was designed to demonstrate benefits derived from the rational consideration of electron/ion transport coupled with the surface chemistry of the electrode materials components. To maximize transport properties, the approach introduces monodispersed spherical Fe3O4 (sFe3O4) for uniform Li+ diffusion and a FWNT web electrode frame that affords characteristics of long-ranged electronic pathways and porous networks...
January 16, 2018: ACS Nano
https://www.readbyqxmd.com/read/29337328/self-assembly-of-high-index-faceted-gold-nanocrystals-to-fabricate-tunable-coupled-plasmonic-superlattices
#13
Haibin Zhang, Chunlin Guan, Ning Song, Yuanyuan Zhang, Hong Liu, Jingzhong Fang
Herein, we present an effective bottom-up strategy to fabricate unprecedented macroscopic two-dimensional (2D) plasmonic gold superlattices composed of high-index faceted gold nanocrystal building blocks (NBBs) at the air-liquid interface. In this approach, a synergistic electrostatic and layered self-assembly technique was executed using unique icosidodecahedral gold nanocrystals. It showed that centimeter-squared areas of close-packed monolayer films were formed, and the interparticle spacing of neighbouring Au NBBs could be facilely manipulated from hundreds to several nanometers...
January 16, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29337099/facile-preparation-and-characterization-of-ph-sensitive-mt-cmc-nanocomposite-hydrogel-beads-for-propranolol-controlled-release
#14
Hassan Farhadnejad, Seyed Alireza Mortazavi, Mohammad Erfan, Behzad Darbasizadeh, Hamidreza Motasadizadeh, Yousef Fatahi
The main aim of the present study was to design pH-sensitive nanocomposite hydrogel beads, based on carboxymethyl cellulose (CMC) and montmorillonite (Mt)-propranolol (PPN) nanohybrid, and evaluate whether the prepared nanocomposite beads could potentially be used as oral drug delivery systems. PPN-as a model drug-was intercalated into the interlayer space of Mt clay mineral via the ion exchange procedure. The resultant nanohybrid (Mt-PPN) was applied to fabricate nanocomposite hydrogel beads by association with carboxymethyl cellulose...
January 11, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29336226/identifying-metrics-before-and-after-readmission-following-head-and-neck-surgery-and-factors-affecting-readmission-rate
#15
Sidharth V Puram, Neil Bhattacharyya
Objectives Determine nationally representative readmission rates after head and neck cancer (HNCA) surgery and factors associated with readmission. Study Design Cross-sectional analysis of admissions database. Methods The 2013 Nationwide Readmissions Database was analyzed for HNCA surgery admissions and subsequent readmission within 30 days. The readmission rate, length of stay (LOS), disposition, mortality rate, and total charges were determined. Diagnoses and procedures upon readmission were quantified. Factors that were associated with readmission were determined...
January 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29335234/a-patient-held-smartcard-with-a-unique-identifier-and-an-mhealth-platform-to-improve-the-availability-of-prenatal-test-results-in-rural-nigeria-demonstration-study
#16
Semiu Olatunde Gbadamosi, Chuka Eze, John Olajide Olawepo, Juliet Iwelunmor, Daniel F Sarpong, Amaka Grace Ogidi, Dina Patel, John Okpanachi Oko, Chima Onoka, Echezona Edozie Ezeanolue
BACKGROUND: Community-based strategies to test for HIV, hepatitis B virus (HBV), and sickle cell disease (SCD) have expanded opportunities to increase the proportion of pregnant women who are aware of their diagnosis. In order to use this information to implement evidence-based interventions, these results have to be available to skilled health providers at the point of delivery. Most electronic health platforms are dependent on the availability of reliable Internet connectivity and, thus, have limited use in many rural and resource-limited settings...
January 15, 2018: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29335188/electrophoretic-deposition-of-single-source-precursors-as-a-general-approach-for-the-formation-of-hybrid-nanorod-array-heterostructures
#17
Michael Volokh, Mahmud Diab, Kobi Flomin, Taleb Mokari
HYPOTHESIS: Subjecting colloids to electric fields often results in (electrophoretic) deposition on conductive substrates. Dispersing a single-source precursor (SSP) of choice in an appropriate solvent, should allow its deposition on different substrates. The SSP-solvent interaction might play a role in the deposition (e.g., direction, rate, coverage). After thermal decomposition, the SSPs convert to the designed material, thus allowing formation of thin films or hybrid nanostructures...
January 9, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29335182/microstructures-and-performances-of-pegylated-polysulfone-membranes-from-an-in-situ-synthesized-solution-via-vapor-induced-phase-separation-approach
#18
Li-Jing Zhu, Hai-Ming Song, Gang Wang, Zhi-Xiang Zeng, Cun-Ting Zhao, Qun-Ji Xue, Xiao-Ping Guo
In situ pegylated (PEGylated) microporous membranes have been extensively reported using poly(ethylene glycol) (PEG)-based polymers as blending additives. Alternatively, free standing PEGylated polysulfone (PSf) membranes with excellent hydrophilicity and antifouling ability were directly fabricated from polysulfone/poly(ethylene glycol) methyl ether methacrylate (PSf/PEGMA) solutions after in situ cross-linking polymerization without any treatment via vapor induced phase separation (VIPS) process for the first time...
January 9, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29335157/thermal-and-epithermal-neutron-flux-distributions-measurement-in-thermal-column-of-trr-using-an-experimental-simulation-method
#19
Ruhollah Adeli, Yaser Kasesaz, Seyed Pezhman Shirmardi, Arsalan Ezaty
For designing an appropriate neutron beam, the determination of neutron flux at any irradiation facility is an important key factor. Due to the importance of determining the thermal and epithermal neutron fluxes in a typical thermal column of a reactor, a simple and accurate technique is introduced in this study. Absolute thermal and epithermal fluxes were measured experimentally at a certain point using the foil activation method by neutron bombardment of bare and cadmium covered Au foils. The relative neutron fluxes were also derived simply by means of Monte Carlo simulation by accurate modelling of the reactor components...
December 28, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29334963/evaluating-the-impact-of-a-falls-prevention-community-of-practice-in-a-residential-aged-care-setting-a-realist-approach
#20
Jacqueline Francis-Coad, Christopher Etherton-Beer, Caroline Bulsara, Nicole Blackburn, Paola Chivers, Anne-Marie Hill
BACKGROUND: Falls are a major socio-economic problem among residential aged care (RAC) populations resulting in high rates of injury including hip fracture. Guidelines recommend that multifactorial prevention strategies are implemented but these require translation into clinical practice. A community of practice (CoP) was selected as a suitable model to support translation of the best available evidence into practice, as it could bring together like-minded people with falls expertise and local clinical knowledge providing a social learning opportunity in the pursuit of a common goal; falls prevention...
January 15, 2018: BMC Health Services Research
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