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https://www.readbyqxmd.com/read/28534582/selective-conversion-of-coconut-oil-to-fatty-alcohols-in-methanol-over-a-hydrothermally-prepared-cu-sio2-catalyst-without-extraneous-hydrogen
#1
Liubi Wu, Lulu Li, Bolong Li, Chen Zhao
A novel one-pot approach selects a hydrothermally synthesized Cu/SiO2 catalyst (consisting of Cu2O·SiO2 and Cu(0) surface species) to catalyze the reduction of a series of fatty esters, fatty acids, and coconut oil to fatty alcohols at 240 °C in methanol without extraneous hydrogen, attaining around 85% conversion and 100% selectivity.
May 23, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28532393/maternal-care-quality-in-near-miss-and-maternal-mortality-in-an-academic-public-tertiary-hospital-in-yogyakarta-indonesia-a-retrospective-cohort-study
#2
Yuli Mawarti, Adi Utarini, Mohammad Hakimi
BACKGROUND: Reducing maternal mortality remains a major challenge for health care systems worldwide. The factors related to maternal mortality were extensively researched, and maternal death clusters around labour, delivery and the immediate postpartum period. Studies on the quality of maternal care in academic medical centre settings in low income countries are uncommon. METHODS: A retrospective cohort study of maternal deaths was conducted in an academic public tertiary hospital in Yogyakarta, and maternal near misses were used as controls...
May 22, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28504304/exploiting-scavenger-receptors-in-cancer-immunotherapy-lessons-from-cd5-and-sr-b1
#3
REVIEW
Marcos Vasquez, Inês Simões, Marta Consuegra-Fernández, Fernando Aranda, Francisco Lozano, Pedro Berraondo
Scavenger receptors (SRs) are structurally heterogeneous cell surface receptors characterized by their capacity to remove extraneous or modified self-macromolecules from circulation, thus avoiding the accumulation of noxious agents in the extracellular space. This scavenging activity makes SRs important molecules for host defense and homeostasis. In turn, SRs keep the activation of the steady state immune response in check, and participate as co-receptors in the priming of the effector immune responses when the macromolecules are associated with a threat that might compromise host homeostasis...
May 15, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28487662/eye-of-the-beholder-stage-entrance-behavior-and-facial-expression-affect-continuous-quality-ratings-in-music-performance
#4
George Waddell, Aaron Williamon
Judgments of music performance quality are commonly employed in music practice, education, and research. However, previous studies have demonstrated the limited reliability of such judgments, and there is now evidence that extraneous visual, social, and other "non-musical" features can unduly influence them. The present study employed continuous measurement techniques to examine how the process of forming a music quality judgment is affected by the manipulation of temporally specific visual cues. Video footage comprising an appropriate stage entrance and error-free performance served as the standard condition (Video 1)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28475603/the-impact-of-obesity-on-neuropsychological-functioning-in-adults-with-and-without-major-depressive-disorder
#5
Maria R Restivo, Margaret C McKinnon, Benicio N Frey, Geoffrey B Hall, Wasimuddin Syed, Valerie H Taylor
BACKGROUND: Evidence suggests obesity exerts a negative impact on cognition. Major Depressive Disorder (MDD) is also linked to problems in cognitive functioning. Obesity is highly prevalent in individuals with MDD and is linked to a failure to return to a full level of functioning. The study's objective was to investigate the effect of obesity on cognitive impairment in participants with MDD. METHODS: This study compared cognitive performance in obese individuals with MDD and two control populations (obese individuals without a psychiatric illness and non-obese controls)...
2017: PloS One
https://www.readbyqxmd.com/read/28467056/easy-preparable-butyrylcholinesterase-microgel-construct-for-facilitated-organophosphate-biosensing
#6
Larisa V Sigolaeva, Snezhana Yu Gladyr, Olga Mergel, Arjan P H Gelissen, Michael Noyong, Ulrich Simon, Dmitry V Pergushov, Ilya N Kurochkin, Felix A Plamper, Walter Richtering
A versatile guest matrix was fabricated from a temperature- and pH-sensitive poly(N-isopropylacrylamide)-co-(3-(N,N-dimethylamino)propylmethacrylamide) microgel (poly(NIPAM-co-DMAPMA), MG) for the gentle incorporation of butyrylcholinesterase (BChE). The microgel/BChE films were built up on a surface of graphite-based screen-printed electrodes (SPEs) premodified with MnO2 nanoparticles via a two-step sequential adsorption under careful temperature and pH control. On this basis, a rather simple amperometric biosensor construct was formed, which uses butyrylthiocholine as BChE substrate with subsequent MnO2-mediated thiocholine oxidation at a graphite-based SPE...
May 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28452897/are-goods-for-guns-good-for-the-community-an-update-of-a-community-gun-buyback-program
#7
Jonathan Green, Rachelle N Damle, Rebecca E Kasper, Pina Violano, Mariann Manno, Pradeep P Nazarey, Jeremy T Aidlen, Michael P Hirsh
BACKGROUND: Gun violence remains a leading cause of death in the United States. Community gun buyback programs provide an opportunity to dispose of extraneous firearms. The purpose of this study was to understand the demographics, motivation, child access to firearms and household mental illness of buyback participants in hopes of improving the program's effectiveness. METHODS: A 2015 Injury Free Coalition for Kids gun buyback program which collaborated with local police departments was studied...
April 27, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28445213/learner-patient-and-supervisor-features-are-associated-with-different-types-of-cognitive-load-during-procedural-skills-training-implications-for-teaching-and-instructional-design
#8
Justin L Sewell, Christy K Boscardin, John Q Young, Olle Ten Cate, Patricia S O'Sullivan
PURPOSE: Cognitive load theory, focusing on limits of the working memory, is relevant to medical education; however, factors associated with cognitive load during procedural skills training are not well characterized. The authors sought to determine how features of learners, patients/tasks, settings, and supervisors were associated with three types of cognitive load among learners performing a specific procedure, colonoscopy, to identify implications for procedural teaching. METHOD: Data were collected through an electronically administered survey sent to 1,061 U...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441246/x-ray-imaging-analysis-of-intrathecal-baclofen-pumps-for-pediatric-emergency-medicine
#9
Brianna Nicole Carr, Thomas Sernas, Catherine A Mazzola
Intrathecal baclofen therapy has become increasingly popular because of its effectiveness in treating spasticity in pediatric patients. The device implanted into each patient is structurally similar. However, x-ray imaging can give the appearance of missing or extraneous objects on or near the intrathecal baclofen device. The composition of the material used in making the catheters is transparent on x-ray images. In addition, the connection port between the pump and catheter resembles the shape of a needle...
April 24, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28394391/refinement-of-insulator-based-dielectrophoresis
#10
Claire V Crowther, Mark A Hayes
The ability to separate analytes with increasingly similar properties drives the field of separation science. One way to achieve such separations is using trapping and streaming dielectrophoresis (DEP), which directly exploits the subtle differences in the electrophysical properties of analytes. The non-uniform fields necessary for DEP can be formed using various insulator shapes in microchannels. Current insulator shapes include triangles, diamonds, circles, and rectangles. However, all of these insulators pose problems for trapping, streaming, and sorting (deflection) as the induced fields/gradients are not behaviorally consistent across the lateral dimension...
May 2, 2017: Analyst
https://www.readbyqxmd.com/read/28383539/analysis-of-the-factors-that-influence-the-finnegan-neonatal-abstinence-scoring-system
#11
E Gomez-Pomar, A Christian, L Devlin, K T Ibonia, V A Concina, H Bada, P M Westgate
OBJECTIVE: To evaluate factors that can influence the Finnegan Neonatal Abstinence Score (FNAS). STUDY DESIGN: Retrospective analysis of 367 patients admitted to two level IV neonatal intensive care units. Linear mixed effects models were developed to evaluate daily census, time of the day, and day of the week as fixed effect predictors. The degree of influence that nurses had on FNAS variability was also estimated. RESULTS: Bivariate analyses showed that daily census and the time of day have significant influence on the FNAS in institution 1, with minimal clinical significance...
April 6, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28381009/post-processing-phase-correction-algorithm-in-two-dimensional-electronic-spectroscopy
#12
Qiuxiang Meng, Yizhu Zhang, T-M Yan, Y H Jiang
In a typical two-dimensional electronic spectroscopy (2DES) experiment, the timing errors of the coherence and emission time when determining the absolute time zeros usually introduce extraneous spectral phase slopes and distort the 2D spectrum. In this work, a phase-correction method that merely relies on the data post-processing algorithm is proposed. The method allows reconstructing the spectrum by simply subtracting the artificial linear spectral-phase slopes from the phase component of the 2D spectrum along both coherence and emission frequency axes...
March 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28380041/noise-and-accustomation-a-pilot-study-of-trained-assessors-olfactory-performance
#13
Johanna Trautmann, Lisa Meier-Dinkel, Jan Gertheiss, Daniel Mörlein
While recent studies suggest an influence of noise on olfactory performance, it is unclear as to what extent the influence varies between subjects who are accustomed to noise and those who are not. Two groups of panelists were selected: a University panel usually working under silent conditions and an abattoir panel usually working on the slaughter line with abattoir noise. Odor discrimination, odor identification, and odor detection thresholds were studied. Furthermore, a sensory quality control task using 40 boar samples was performed...
2017: PloS One
https://www.readbyqxmd.com/read/28370252/fetal-cardiac-cine-imaging-using-highly-accelerated-dynamic-mri-with-retrospective-motion-correction-and-outlier-rejection
#14
Joshua F P van Amerom, David F A Lloyd, Anthony N Price, Maria Kuklisova Murgasova, Paul Aljabar, Shaihan J Malik, Maelene Lohezic, Mary A Rutherford, Kuberan Pushparajah, Reza Razavi, Joseph V Hajnal
PURPOSE: Development of a MRI acquisition and reconstruction strategy to depict fetal cardiac anatomy in the presence of maternal and fetal motion. METHODS: The proposed strategy involves i) acquisition and reconstruction of highly accelerated dynamic MRI, followed by image-based ii) cardiac synchronization, iii) motion correction, iv) outlier rejection, and finally v) cardiac cine reconstruction. Postprocessing entirely was automated, aside from a user-defined region of interest delineating the fetal heart...
April 3, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28366211/porous-membrane-protected-micro-solid-phase-extraction-a-review-of-features-advancements-and-applications
#15
REVIEW
Muhammad Sajid
Membrane protected micro-solid-phase extraction (μ-SPE) was introduced in 2006 as an alternative to multistep SPE. μ-SPE is based on packing of very small amount of sorbent inside the porous membrane sheet whose edges are heat sealed to fabricate a μ-SPE device. This device performs clean up, extraction, and pre-concentration in a single step. It suits best for extraction of complex samples as sorbent is effectively protected inside the membrane and extraneous matter cannot adsorb over it. This review summarizes most important aspects of μ-SPE including basic principles, extraction procedure, different formats, sorbents employed and affecting parameters...
May 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28364364/possible-reversal-of-ptsd-related-dna-methylation-by-sympathetic-blockade
#16
REVIEW
Eugene G Lipov, Kenneth Candido, Elspeth C Ritchie
Studies have shown that brain-derived neurotrophic factor (BDNF) level increase is associated with post-traumatic stress disorder (PTSD) risk. BDNF may be a "missing-link" that mediates the interaction between genetics, environment, and the sympathetic system. Trauma has been shown to induce DNA methylation that in turn can increase BDNF concentration due to increased gene expression. Therapies that focus on the reduction of beta-NGF (BNGF) levels may impact PTSD symptoms. The focus of this paper is to discuss possible effect of stellate ganglion block (SGB) on epigenetic changes noted with PTSD mediated by BDNF and NGF...
March 31, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28360819/surface-initiated-ring-opening-metathesis-polymerization-si-romp-to-attach-a-tethered-organic-corona-onto-cdse-zns-core-shell-quantum-dots
#17
Fatma Vatansever, Michael R Hamblin
Core-shell CdSe/ZnS quantum dots (QDs) are useful as tunable photostable fluorophores for multiple applications in industry, biology, and medicine. However, to achieve the optimum optical properties, the surface of the QDs must be passivated to remove charged sites that might bind extraneous substances and allow aggregation. Here we describe a method of growing an organic polymer corona onto the QD surface using the bottom-up approach of surface-initiated ring-opening metathesis polymerization (SI-ROMP) with Grubbs catalyst...
October 2016: Journal of Nanoparticle Research: An Interdisciplinary Forum for Nanoscale Science and Technology
https://www.readbyqxmd.com/read/28357919/simple-silica-column-based-method-to-quantify-inorganic-polyphosphates-in-cartilage-and-other-tissues
#18
Whitaik David Lee, Rahul Gawri, Toshikazu Shiba, Ae-Ri Ji, William L Stanford, Rita A Kandel
OBJECTIVE: Inorganic polyphosphates (polyP) play a multitude of roles in mammalian biology. PolyP research is hindered by the lack of a simple and sensitive quantification method. The aim of this study was to develop a robust method for quantifying the low levels of polyP in mammalian tissue such as cartilage, which is rich in macromolecules that interfere with its determination. DESIGN: Native and in vitro formed tissues were digested with proteinase K to release sequestrated polyP...
March 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28349883/functionalization-of-super-aligned-carbon-nanotube-film-using-hydrogen-peroxide-solution-and-its-application-in-copper-electrodeposition
#19
Lunqiao Xiong, Jing Shuai, Zecheng Hou, Lin Zhu, Wenzhen Li
In order to make super-aligned carbon nanotubes (SACNT) homogeneously spread in electrolytes, a swift and effective method was devised for surface functionalization of SACNT film by ohmic heating using hydrogen peroxide solution. Controllable generation of defects and notable graft of oxygen functional groups on the sidewall of SACNTs were induced as proven by X-ray photoelectron spectroscopy and Raman spectroscopy. Differently from the harsh wet chemical oxidation, the super-aligned morphology and structural integrity of carbon nanotubes in the SACNT film were found to be well preserved by electron microscopy analysis...
March 21, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28328872/the-role-of-the-iacuc-in-ensuring-research-reproducibility
#20
REVIEW
Jerald Silverman, James Macy, Patricia A Preisig
There is a "village" of people impacting research reproducibility, such as funding panels, the IACUC and its support staff, institutional leaders, investigators, veterinarians, animal facilities, and professional journals. IACUCs can contribute to research reproducibility by ensuring that reviews of animal use requests, program self-assessments and post-approval monitoring programs are sufficiently thorough, the animal model is appropriate for testing the hypothesis, animal care and use is conducted in a manner that is compliant with external and institutional requirements, and extraneous variables are minimized...
March 22, 2017: Lab Animal
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