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https://www.readbyqxmd.com/read/28323423/bioinspired-layer-by-layer-microcapsules-based-on-cellulose-nanofibers-with-switchable-permeability
#1
Thomas Paulraj, Anastasia V Riazanova, Kun Yao, Richard L Andersson, Anette Müllertz, Anna J Svagan
Green, all-polysaccharide based microcapsules with mechanically robust capsule walls and fast, stimuli-triggered and switchable permeability behaviour show great promise in applications based on selective and timed permeability. Taking cue from nature, the build-up and composition of plant primary cell wall inspired the capsule wall assembly, because the primary cell walls in plants exhibit high mechanical properties despite being in a highly hydrated state, primarily owing to cellulose microfibrils. The microcapsules (16 ± 4 µm in diameter) were fabricated using the Layer-by-Layer technique on sacrificial CaCO3 templates, using plant polysaccharides (pectin, cellulose nanofibers and xyloglucan) only...
March 21, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28319374/mechanisms-of-energy-transfer-and-enhanced-stability-of-carbidonitride-phosphors-for-solid-state-lighting
#2
Christopher Grieco, Kurt F Hirsekorn, Andrew T Heitsch, Alan C Thomas, Mark H McAdon, Britt A Vanchura, Michael M Romanelli, Lora L Brehm, Anne Leugers, Anatoliy Sokolov, John B Asbury
Phosphor-converted light emitting diodes (pcLEDs) produce white light through the use of phosphors that convert blue light emitted from the LED chip into green and red wavelengths. Understanding the mechanisms of degradation of the emission spectra and quantum yields of the phosphors used in pcLEDs is of critical importance to fully realize the potential of solid state lighting as an energy efficient technology. Toward this end, time-resolved photoluminescence spectroscopy was used to identify the mechanistic origins of enhanced stability and luminescence efficiency that can be obtained from a series of carbidonitride red phosphors with varying degree of substitutional carbon...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28315307/no-compelling-positive-association-between-ovarian-hormones-and-wearing-red-clothing-when-using-multinomial-analyses
#3
Khandis R Blake, Barnaby J W Dixson, Siobhan M O'Dean, Thomas F Denson
Several studies report that wearing red clothing enhances women's attractiveness and signals sexual proceptivity to men. The associated hypothesis that women will choose to wear red clothing when fertility is highest, however, has received mixed support from empirical studies. One possible cause of these mixed findings may be methodological. The current study aimed to replicate recent findings suggesting a positive association between hormonal profiles associated with high fertility (high estradiol to progesterone ratios) and the likelihood of wearing red...
March 14, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28297454/evaluation-of-cassette-based-digital-radiography-detectors-using-standardized-image-quality-metrics-aapm-tg-150-draft-image-detector-tests
#4
Guang Li, Travis C Greene, Thomas K Nishino, Charles E Willis
The purpose of this study was to evaluate several of the standardized image quality metrics proposed by the American Association of Physics in Medicine (AAPM) Task Group 150. The task group suggested region-of-interest (ROI)-based techniques to measure nonuniformity, minimum signal-to-noise ratio (SNR), number of anomalous pixels, and modulation transfer function (MTF). This study evaluated the effects of ROI size and layout on the image metrics by using four different ROI sets, assessed result uncertainty by repeating measurements, and compared results with two commercially available quality control tools, namely the Carestream DIRECTVIEW Total Quality Tool (TQT) and the GE Healthcare Quality Assurance Process (QAP)...
September 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28295776/compartmentalisation-of-fefe-hydrogenase-maturation-in-chlamydomonas-reinhardtii
#5
Anne Sawyer, Yu Bai, Yinghua Lu, Anja Hemschemeier, Thomas Happe
Molecular hydrogen (H2 ) can be produced in green microalgae by [FeFe]-hydrogenases as a direct product of photosynthesis. The Chlamydomonas reinhardtii hydrogenase HYDA1 contains a catalytic site comprising a classic [4Fe4S] cluster linked to a unique 2Fe sub-cluster. From in vitro studies it appears that the [4Fe4S] cluster is incorporated first by the housekeeping FeS cluster assembly machinery, followed by the 2Fe sub-cluster, whose biosynthesis requires the specific maturases HYDEF and HYDG. To investigate the maturation process in vivo, we expressed HYDA1 from the C...
March 13, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28295302/the-associations-between-army-national-guard-versus-active-duty-soldier-status-and-perceived-burdensomeness-thwarted-belongingness-and-acquired-capability
#6
Matthew C Podlogar, Claire Houtsma, Lauren R Khazem, Fallon Ringer, Thomas Mofield, Bradley A Green, Michael D Anestis, Ingrid C Lim, Thomas E Joiner
OBJECTIVE: This study aimed to examine if levels of thwarted belongingness, perceived burdensomeness, and acquired capability significantly differed between guardsmen and active duty soldiers. METHOD: Multivariate analysis of covariance was used to test for differences between active duty Army (n = 1,393) and Army National Guard (n = 623) groups, before and after controlling for the effects of age, gender, race, marital status, level of education, and deployment history...
March 10, 2017: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28295085/carrier-envelope-offset-frequency-detection-and-stabilization-of-a-diode-pumped-mode-locked-ti-sapphire-laser
#7
Kutan Gürel, Valentin J Wittwer, Sargis Hakobyan, Stéphane Schilt, Thomas Südmeyer
We demonstrate the first diode-pumped Ti:sapphire laser frequency comb. It is pumped by two green laser diodes with a total pump power of 3 W. The Ti:sapphire laser generates 250 mW of average output power in 61-fs pulses at a repetition rate of 216 MHz. We generated an octave-spanning supercontinuum spectrum in a photonic-crystal fiber and detected the carrier envelope offset (CEO) frequency in a standard f-to-2f interferometer setup. We stabilized the CEO-frequency through direct current modulation of one of the green pump diodes with a feedback bandwidth of 55 kHz limited by the pump diode driver used in this experiment...
March 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28291913/a-method-to-reconstruct-and-apply-3d-primary-fluence-for-treatment-delivery-verification
#8
Shi Liu, Thomas R Mazur, Harold Li, Austen Curcuru, Olga L Green, Baozhou Sun, Sasa Mutic, Deshan Yang
MOTIVATION: In this study, a method is reported to perform IMRT and VMAT treatment delivery verification using 3D volumetric primary beam fluences reconstructed directly from planned beam parameters and treatment delivery records. The goals of this paper are to demonstrate that 1) 3D beam fluences can be reconstructed efficiently, 2) quality assurance (QA) based on the reconstructed 3D fluences is capable of detecting additional treatment delivery errors, particularly for VMAT plans, beyond those identifiable by other existing treatment delivery verification methods, and 3) QA results based on 3D fluence calculation (3DFC) are correlated with QA results based on physical phantom measurements and radiation dose recalculations...
January 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28290448/rare-earth-separations-by-selective-borate-crystallization
#9
Xuemiao Yin, Yaxing Wang, Xiaojing Bai, Yumin Wang, Lanhua Chen, Chengliang Xiao, Juan Diwu, Shiyu Du, Zhifang Chai, Thomas E Albrecht-Schmitt, Shuao Wang
Lanthanides possess similar chemical properties rendering their separation from one another a challenge of fundamental chemical and global importance given their incorporation into many advanced technologies. New separation strategies combining green chemistry with low cost and high efficiency remain highly desirable. We demonstrate that the subtle bonding differences among trivalent lanthanides can be amplified during the crystallization of borates, providing chemical recognition of specific lanthanides that originates from Ln(3+) coordination alterations, borate polymerization diversity and soft ligand coordination selectivity...
March 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28290070/parieto-frontal-gyrification-and-working-memory-in-healthy-adults
#10
Sophie Green, Karen Blackmon, Thomas Thesen, Jonathan DuBois, Xiuyuan Wang, Eric Halgren, Orrin Devinsky
Gyrification of the cortical mantle is a dynamic process that increases with cortical surface area and decreases with age. Increased gyrification is associated with higher scores on cognitive tasks in adults; however, the degree to which this relationship is independent of cortical surface area remains undefined. This study investigates whether regional variation in gyrification is associated with domain-general and domain-specific cognition. Our hypothesis is that increased local gyrification confers a functional advantage that is independent of surface area...
March 13, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28289727/seroprevalence-of-zika-virus-in-wild-african-green-monkeys-and-baboons
#11
Connor R Buechler, Adam L Bailey, Andrea M Weiler, Gabrielle L Barry, Meghan E Breitbach, Laurel M Stewart, Anna J Jasinska, Nelson B Freimer, Cristian Apetrei, Jane E Phillips-Conroy, Clifford J Jolly, Jeffrey Rogers, Thomas C Friedrich, David H O'Connor
Zika virus (ZIKV) has recently spread through the Americas and has been associated with a range of health effects, including birth defects in children born to women infected during pregnancy. Although the natural reservoir of ZIKV remains poorly defined, the virus was first identified in a captive "sentinel" macaque monkey in Africa in 1947. However, the virus has not been reported in humans or nonhuman primates (NHPs) in Africa outside Gabon in over a decade. Here, we examine ZIKV infection in 239 wild baboons and African green monkeys from South Africa, the Gambia, Tanzania, and Zambia using combinations of unbiased deep sequencing, quantitative reverse transcription-PCR (qRT-PCR), and an antibody capture assay that we optimized using serum collected from captive macaque monkeys exposed to ZIKV, dengue virus, and yellow fever virus...
March 2017: MSphere
https://www.readbyqxmd.com/read/28289384/theabrownin-inhibits-cell-cycle-progression-and-tumor-growth-of-lung-carcinoma-through-c-myc-related-mechanism
#12
Li Zhou, Feifei Wu, Wangdong Jin, Bo Yan, Xin Chen, Yingfei He, Weiji Yang, Wenlin Du, Qiang Zhang, Yonghua Guo, Qiang Yuan, Xiaoqiao Dong, Wenhua Yu, Jin Zhang, Luwei Xiao, Peijian Tong, Letian Shan, Thomas Efferth
Green tea, the fresh leaves of Camellia sinensis, is not only a health-promoting beverage but also a traditional Chinese medicine used for prevention or treatment of cancer, such as lung cancer. Theabrownin (TB) is the main fraction responsible for the medicinal effects of green tea, but whether it possesses anti-cancer effect is unknown yet. This study aimed to determine the in vitro and in vivo anti-lung cancer effect of TB and explore the underlying molecular mechanism, by using A549 cell line and Lewis lung carcinoma-bearing mice...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28287828/testing-multiple-conceptualizations-of-oppositional-defiant-disorder-in-youth
#13
Thomas H Ollendick, Jordan A Booker, Sarah Ryan, Ross W Greene
Recent theories conceptualize oppositional defiant disorder (ODD) as a two-dimensional construct with angry/irritable (i.e., affective) and argumentative/defiant (i.e., behavioral) components. This view has been supported by studies of nonreferred youth but not yet examined in clinic-referred youth. In a reanalysis of data regarding children who received one of two psychosocial ODD treatments, we examined multiple conceptualizations of ODD, whether children showed improvements across these ODD dimensions, and whether main and joint effects of ODD dimension improvement predicted clinical outcome...
March 13, 2017: Journal of Clinical Child and Adolescent Psychology
https://www.readbyqxmd.com/read/28281622/implant-retention-systems-for-implant-retained-overdentures
#14
D P Laverty, D Green, D Marrison, L Addy, M B M Thomas
Implant retained overdentures are being increasingly utilised in both general and specialist practice to rehabilitate patients with missing teeth, particularly those that are edentate. This article aims to inform the reader of a variety of retention systems that are available to retain an implant overdenture and to understand how these systems work, their advantages and disadvantages and to outline some of the clinical and treatment planning considerations involved in selecting the most appropriate retention system for patients...
March 10, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28280033/complete-genome-sequence-of-a-burkholderia-pseudomallei-strain-isolated-from-a-pet-green-iguana-in-prague-czech-republic
#15
Mandy C Elschner, Prasad Thomas, Hosny El-Adawy, Katja Mertens, Falk Melzer, Jan Hnizdo, Ivonne Stamm
Burkholderia pseudomallei was isolated from pus from an abscess of a pet iguana living in a private household in Prague, Czech Republic. This paper presents the complete genome sequence of B. pseudomallei strain VB976100.
March 9, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28276723/detection-of-blood-volumes-and-haemoglobin-mass-by-means-of-co-re-breathing-and-indocyanine-green-and-sodium-fluorescein-injections
#16
Stefanie Keiser, Anne-Kristine Meinild-Lundby, Thomas Steiner, Severin Trösch, Sven Rauber, Alexander Krafft, Tilo Burkhardt, Matthias Peter Hilty, Christoph Siebenmann, Jon Peter Wehrlin, Carsten Lundby
The main aim of the present study was to quantify the magnitude of differences introduced when estimating a given blood volume compartment (e.g. plasma volume) through the direct determination of another compartment (e.g. red cell volume) by multiplication of venous haematocrit and/or haemoglobin concentration. However, since whole body haematocrit is higher than venous haematocrit such an approach might comprise certain errors. To test this experimentally, four different methods for detecting blood volumes and haemoglobin mass (Hbmass) were compared, namely the carbon monoxide (CO) re-breathing (for Hbmass), the indocyanine green (ICG; for plasma volume [PV]) and the sodium fluorescein (SoF; for red blood cell volume [RBCV]) methods...
May 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28276340/photophysics-of-thermally-activated-delayed-fluorescence-molecules
#17
Fernando B Dias, Thomas J Penfold, Andrew P Monkman
Thermally activated delayed fluorescence (TADF) has recently emerged as one of the most attractive methods for harvesting triplet states in metal-free organic materials for application in organic light emitting diodes (OLEDs). A large number of TADF molecules have been reported in the literature with the purpose of enhancing the efficiency of OLEDs by converting non-emissive triplet states into emissive singlet states. TADF emitters are able to harvest both singlets and triplet states through fluorescence (prompt and delayed), the latter due to the thermally activated reverse intersystem crossing mechanism that allows up-conversion of low energy triplet states to the emissive singlet level...
March 9, 2017: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28271226/determination-of-true-ratios-of-different-n-glycan-structures-in-electrospray-ionization-mass-spectrometry
#18
Clemens Grünwald-Gruber, Andreas Thader, Daniel Maresch, Thomas Dalik, Friedrich Altmann
An ideal method for the analysis of N-glycans would both identify the isomeric structure and deliver a true picture of the relative, if not absolute, amounts of the various structures in one sample. Porous graphitic carbon chromatography coupled with electrospray ionization mass spectrometry (ESI-MS) detection has emerged as a method with a particularly high potential of resolving isomeric oligosaccharides, but little attention has so far been paid to quantitation of the results obtained. In this work, we isolated a range of structures from Man5 to complex type N-glycans with zero to four sialic acids and blended them into an equimolar "glyco tune mix"...
March 7, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28267733/us-immigration-order-strikes-against-biotech
#19
Jeremy M Levin, Steven H Holtzman, John Maraganore, Paul J Hastings, Ron Cohen, Bassil Dahiyat, Julian Adams, Chris Adams, Brett Ahrens, Jeff Albers, Mara G Aspinall, James E Audia, Martin Babler, Peter Barrett, Zoe Barry, Nessan Bermingham, Stephen Bloch, Robert I Blum, Paul B Bolno, Michael W Bonney, Bruce Booth, Daniel M Bradbury, Steven K Brauer, Brook Byers, Pablo J Cagnoni, Brian M Cali, Isaac Ciechanover, Chip Clark, Michael D Clayman, Jeff L Cleland, Paula Cobb, Ron Cooper, Mark G Currie, John Diekman, Eric L Dobmeier, Doug Doerfler, Elizabeth Lr Donley, Deborah Dunsire, Matthew During, Jens W Eckstein, Eric Elenko, Neil A Exter, Jonathan J Fleming, Gregory J Flesher, Jean-Francois Formela, Robert Forrester, Cedric Francois, Heather Franklin, Mason W Freeman, Howard Furst, Leonard Patrick Gage, Nicholas Galakatos, Brian M Gallagher, James A Geraghty, Simba Gill, David V Goeddel, Mark A Goldsmith, Maxine Gowen, Vikas Goyal, Tom Graney, David Grayzel, Barry Greene, Paul Grint, J C Gutierrez-Ramos, Bill Haney, Tuan Ha-Ngoc, Tim Harris, Faheem Hasnain, Yujiro Steve Hata, Peter Hecht, Leslie Henshaw, Rich Heyman, Herve Hoppenot, H Robert Horvitz, Thomas E Hughes, Wende S Hutton, Stephen T Isaacs, Annalisa Jenkins, Jeff Jonker, Jeff Kaplan, Perry Karsen, Jeb Keiper, Jean Kim, Jeff Kindler, Rachel King, Vanessa King, Nina Kjellson, Scott Koenig, Gerhard Koenig, Peter Kolchinsky, Paul Laikind, Robert Bob Langer, John J Lee, Jonathan S Leff, Bruce A Leicher, Nick Leschly, Andrew Levin, Mark Levin, Arnold J Levine, Alan Levy, David R Liu, Harvey F Lodish, Uri Lopatin, Ted W Love, Guy Macdonald, Gail J Maderis, Ankit Mahadevia, Nagesh K Mahanthappa, Joel F Martin, Alex Martin, W Eddie Martucci, James G McArthur, Corey M McCann, Sean A McCarthy, C Geoffrey McDonough, John Mendlein, Larry Miller, Diego Miralles, Kenneth I Moch, Bob More, Andrew G Myers, Michael A Narachi, Amir Nashat, Wendy Nelson, William J Newell, Bernat Olle, John E Osborn, Julia C Owens, Atul Pande, Stelios Papadopoulos, H Stewart Parker, Kush M Parmar, Matthew R Patterson, Steve M Paul, Rob Perez, Matthew Perry, Cary G Pfeffer, Mike Powell, Mark Pruzanski, Dennis J Purcell, Amit Rakhit, Kartik Ramamoorthi, William Rastetter, Adrian Ad Rawcliffe, Laurence E Reid, Ron C Renaud, Jason P Rhodes, William J Rieflin, Chad Robins, Scott M Rocklage, Michael Rosenblatt, Jonathan G Rosin, William J Rutter, Saurabh Saha, Camille Samuels, Vicki L Sato, George Scangos, John A Scarlett, David Schenkein, Stuart L Schreiber, Andrew Schwab, Paul Sekhri, Rajeev Shah, Thomas Shenk, Clay B Siegall, Nick J Simon, Nancy Simonian, Jeff Stein, Michael Su, Mary T Szela, Marco Taglietti, Nina Tandon, Henri Termeer, Nancy A Thornberry, Martin Tolar, Richard Ulevitch, Akshay K Vaishnaw, Anne VanLent, Martin Varsavsky, George P Vlasuk, Michel Vounatsos, Samuel G Waksal, Neil Warma, Ryan J Watts, Yaron Werber, Christoph Westphal, Wendell Wierenga, Doug E Williams, Lewis Rusty Williams, Kleanthis G Xanthopoulos, Daphne Zohar, Sandford Sandy Zweifach
No abstract text is available yet for this article.
March 7, 2017: Nature Biotechnology
https://www.readbyqxmd.com/read/28266116/global-epidemiology-of-dental-caries-and-severe-periodontitis-a-comprehensive-review
#20
Jo E Frencken, Praveen Sharma, Laura Stenhouse, David Green, Dominic Laverty, Thomas Dietrich
BACKGROUND: Dental caries and periodontitis are the most common oral diseases and major causes of tooth loss. AIM: To perform a review of global prevalence and incidence of dental caries and periodontitis. METHODOLOGY: Inclusion and exclusion criteria were developed. MEDLINE database and EMBASE database were used to search for eligible publications using keywords and MeSH terms. Additionally, WHO databank was used for obtaining dental caries information and PUBMED for a search on trends of dental caries prevalence and severity...
March 2017: Journal of Clinical Periodontology
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