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https://www.readbyqxmd.com/read/28813040/enhanced-selectivity-of-methane-production-for-photocatalytic-reduction-by-the-piezoelectric-effect
#1
Kaiqiang Wang, Zhibin Fang, Xueyan Huang, Wenhui Feng, Yaozhu Wang, Bo Wang, Ping Liu
Under simultaneous full arc light and ultrasonic irradiation, photo-generated electrons are brought together by piezoelectric potential, and thus dense electrons induce the reduction of carbon dioxide on the surface of piezoelectric semiconductors, resulting in an improved selectivity of methane production to a greater degree.
August 16, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28812877/scru2b3-and-sc2rub6-borides-featuring-a-2d-infinite-boron-clustering
#2
Leonid P Salamakha, Oksana Sologub, Berthold Stöger, Peter Franz Rogl, Monika Waas, Volodymyr B Kapustianyk, Ernst Bauer
Two borides, ScRu2B3 and Sc2RuB6, were obtained by argon-arc melting of the elements followed by annealing at 800 °C. ScRu2B3 exhibits a new structure type with the space group Cmcm (a = 3.0195(2) Å, b = 15.4056(8) Å, c = 5.4492(3) Å; single crystal X-ray data; RF(2) = 0.0105). Sc2RuB6 adopts the Y2ReB6-type structure (space group Pbam; a = 8.8545(2) Å, b = 11.1620(3) Å, c = 3.4760(1) Å; single crystal X-ray data; RF(2) = 0.0185). ScRu2B3 displays an unusual intergrowth of CeCo3B2- and AlB2-related slabs; a striking feature is a boat configuration of puckered boron hexagons within infinite graphite like boron layers (6(3) nets)...
August 16, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28812042/visual-outcomes-24%C3%A2-months-after-laserace
#3
AnnMarie Hipsley, David Hui-Kang Ma, Chi-Chin Sun, Mitchell A Jackson, Daniel Goldberg, Brad Hall
BACKGROUND: To evaluate the effects on near and intermediate visual performance after bilateral Laser Anterior Ciliary Excision (LaserACE) procedure. METHODS: LaserACE surgery was performed using the VisioLite 2.94 μm erbium: yttrium-aluminum-garnet (Er:YAG) ophthalmic laser system in 4 oblique quadrants on the sclera over the ciliary muscle in 3 critical zones of physiological importance (over the ciliary muscles and posterior zonules) with the aim to improve natural dynamic accommodative forces...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/28811147/neutralization-of-cement-asbestos-waste-by-melting-in-an-arc-resistance-furnace
#4
Jerzy Witek, Robert Kusiorowski
The paper presents the results of research on asbestos waste disposal by the melting process. The tests were carried out in a laboratory arc-resistance electric furnace. The obtained results showed that the fibrous structure of asbestos contained in cement-asbestos waste was completely destroyed. This led to the formation of new mineral phases without dangerous properties. The melting test was conducted on raw cement-asbestos samples without any additives and with a content of mineral compounds, the aim of which was to support the melting process...
August 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28810881/comparison-of-photon-volumetric-modulated-arc-therapy-intensity-modulated-proton-therapy-and-intensity-modulated-carbon-ion-therapy-for-delivery-of-hypo-fractionated-thoracic-radiotherapy
#5
Alexander Chi, Lien-Chun Lin, Sijin Wen, Haijuan Yan, Wen-Chien Hsi
PURPOSE: The aim of the present study was to compare the dose distribution generated from photon volumetric modulated arc therapy (VMAT), intensity modulated proton therapy (IMPT), and intensity modulated carbon ion therapy (IMCIT) in the delivery of hypo-fractionated thoracic radiotherapy. METHODS AND MATERIALS: Ten selected patients who underwent thoracic particle therapy between 2015 and 2016 were re-planned to receive a relative biological effectiveness (RBE) weighted dose of 60 Gy (i...
August 15, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28809710/double-mode-microparticle-manipulation-by-tunable-secondary-flow-in-microchannel-with-arc-shaped-groove-arrays
#6
Qianbin Zhao, Sheng Yan, Dan Yuan, Jun Zhang, Haiping Du, Gursel Alici, Weihua Li
In this paper, we proposed a microparticle manipulation approach, by which particles are able to be guided to different equilibrium positions through modulating the Reynolds number. In the microchannel with arc-shaped groove arrays, secondary flow vortex arisen due to the pressure gradient varies in the aspects of both magnitude and shape with the increase of Reynolds number. And the variation of secondary flow vortex brings about different focusing modes of microparticles in the microchannel. We investigated the focusing phenomenon experimentally and analyzed the mechanism through numerical simulations...
August 14, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28808344/hypothalamic-effects-of-progesterone-on-regulation-of-the-pulsatile-and-surge-release-of-luteinising-hormone-in-female-rats
#7
Wen He, Xiaofeng Li, Daniel Adekunbi, Yali Liu, Hui Long, Li Wang, Qifeng Lyu, Yanping Kuang, Kevin T O'Byrne
Progesterone can block the oestradiol-induced GnRH/LH surge and inhibit LH pulse frequency. Recent studies reported that progesterone prevented premature LH surges during ovarian hyperstimulation in women. As the most potent stimulator of GnRH/LH release, kisspeptin is believed to mediate the positive and negative feedback effects of oestradiol in the hypothalamic anteroventral periventricular (AVPV) and arcuate (ARC) nuclei, while the region-specific role of progesterone receptors in these nuclei remains unknown...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808320/carotid-body-mediated-chemoreflex-drive-in-the-setting-of-low-and-high-output-heart-failure
#8
Rodrigo Del Rio, David C Andrade, Camilo Toledo, Hugo S Diaz, Claudia Lucero, Alexis Arce-Alvarez, Noah J Marcus, Harold D Schultz
Enhanced carotid body (CB) chemoreflex function is strongly related to cardiorespiratory disorders and disease progression in heart failure (HF). The mechanisms underlying CB sensitization during HF are not fully understood, however previous work indicates blood flow per se can affect CB function. Then, we hypothesized that the CB-mediated chemoreflex drive will be enhanced only in low output HF but not in high output HF. Myocardial infarcted rats and aorto-caval fistulated rats were used as a low output HF model (MI-CHF) and as a high output HF model (AV-CHF), respectively...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808003/signaling-from-the-plasma-membrane-localized-plant-immune-receptor-rpm1-requires-self-association-of-the-full-length-protein
#9
Farid El Kasmi, Eui-Hwan Chung, Ryan G Anderson, Jinyue Li, Li Wan, Timothy K Eitas, Zhiyong Gao, Jeffery L Dangl
Plants evolved intracellular immune receptors that belong to the NOD-like receptor (NLR) family to recognize the presence of pathogen-derived effector proteins. NLRs possess an N-terminal Toll-like/IL-1 receptor (TIR) or a non-TIR domain [some of which contain coiled coils (CCs)], a central nucleotide-binding (NB-ARC) domain, and a C-terminal leucine-rich repeat (LRR). Activation of NLR proteins results in a rapid and high-amplitude immune response, eventually leading to host cell death at the infection site, the so-called hypersensitive response...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28805047/outcomes-of-post-prostatectomy-radiotherapy-at-a-regional-cancer-centre
#10
Luke Nicholls, Amber Winter, Ashley Harwood, Ashley Plank, Preeti Bagga, Winnie Wong, Eric Khoo
INTRODUCTION: To investigate the efficacy and toxicity of radiation therapy (RT) after radical prostatectomy (RP) for prostate cancer at Radiation Oncology Centres, Toowoomba. METHODS: The electronic medical records of 130 consecutive patients with histologically proven prostate adenocarcinoma who underwent post-prostatectomy RT between January 2008 and December 2014 were analysed. Primary endpoint was Biochemical Recurrence (BCR) after RT. BCR was defined by PSA > 0...
August 14, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28804730/breast-dose-reduction-with-organ-based-wide-angle-tube-current-modulated-ct
#11
Wanyi Fu, Gregory M Sturgeon, Greeshma Agasthya, William Paul Segars, Anuj J Kapadia, Ehsan Samei
This study aimed to estimate the organ dose reduction potential for organ-dose-based tube current modulated (ODM) thoracic computed tomography (CT) with a wide dose reduction arc. Twenty-one computational anthropomorphic phantoms (XCAT) were used to create a virtual patient population with clinical anatomic variations. The phantoms were created based on patient images with normal anatomy (age range: 27 to 66 years, weight range: 52.0 to 105.8 kg). For each phantom, two breast tissue compositions were simulated: [Formula: see text] and [Formula: see text] (glandular-to-adipose ratio)...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28804447/activity-dependent-arc-expression-and-homeostatic-synaptic-plasticity-are-altered-in-neurons-from-a-mouse-model-of-angelman-syndrome
#12
Elissa D Pastuzyn, Jason D Shepherd
Angelman syndrome (AS) is a neurodevelopmental disorder that results from deletions or mutations in chromosome 15, which usually includes the UBE3A gene. Ube3A protein is an E3 ubiquitin ligase that ubiquitinates proteins and targets them for degradation. The immediate-early gene Arc, a master regulator of synaptic plasticity, was identified as a putative substrate of Ube3A, but there have been conflicting reports on whether Arc is a bona fide E3 ligase substrate. Using multiple approaches, we found no evidence for a physical interaction between Arc and Ube3A in vivo...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28802421/symptomatic-medial-humeral-epicondylar-fracture-non-union-rare-presentation-of-a-relatively-common-injury
#13
Vidisha S Kulkarni, Nitish Arora, Harshit Gehlot, Sagar Saxena, Sunil G Kulkarni, Supreet Bajwa
BACKGROUND: Symptomatic non-union of medial humeral epicondylar fractures is a limited entity. Some studies recommend surgical excision of the fragment, but the results are controversial. The purpose of this study is to evaluate the outcome of open reduction and internal fixation of a medial epicondyle non-union fragment. MATERIALS AND METHODS: A retrospective study was conducted in all the patients, who were operated in our hospital between the year 2010 and 2015 for symptomatic medial humeral epicondyle non-union...
August 2017: Injury
https://www.readbyqxmd.com/read/28800644/cytokine-and-hormonal-regulation-of-bone-marrow-immune-cell-wnt10b-expression
#14
Fraser L Collins, Naiomy Deliz Rios-Arce, Laura R McCabe, Narayanan Parameswaran
BACKGROUND & AIMS: Wnt10b is a crucial regulator of bone density through its ability to promote osteoblastogenesis. Parathyroid hormone has been shown to regulate Wnt10b expression in CD8+ T cells. However, the relative expression and other source(s) of Wnt10b in the bone marrow immune cells (BMICs) is unknown. Sex hormones and cytokines such as, estrogen and TNFα are critical regulators of bone physiology but whether they regulate BMIC Wnt10b expression is unclear. To determine the potential regulation of Wnt10b by estrogen and TNFα, we assessed Wnt10b expression by flow cytometry under estrogen- and TNFα-deficient conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28800500/sb223412-a-neurokinin-3-receptor-selective-antagonist-suppresses-testosterone-secretion-in-male-guinea-pigs
#15
Sho Nakamura, Yoshiko Ito, Koki Yamamoto, Chudai Takahashi, Mingdao Dai, Miyu Tanahashi, Yoshihisa Uenoyama, Hiroko Tsukamura, Shinya Oishi, Kei-Ichiro Maeda, Fuko Matsuda
Guinea pigs are important zoo animals and have been recommended for animal-assisted activities or therapy, however there are problems concerning testosterone inducing aggressive or sexual behaviors in male guinea pigs. Testicular testosterone secretion is regulated by pulsatile gonadotropin releasing hormone (GnRH)/luteinizing hormone (LH) release in mammals. The mechanism generating GnRH/LH pulses is thought to be governed by kisspeptin neurons, which coexpress neurokinin B (NKB) and dynorphin A (Dyn), in the arcuate nucleus (ARC)...
July 31, 2017: Theriogenology
https://www.readbyqxmd.com/read/28798064/accurate-rna-consensus-sequencing-for-high-fidelity-detection-of-transcriptional-mutagenesis-induced-epimutations
#16
Kate S Reid-Bayliss, Lawrence A Loeb
Transcriptional mutagenesis (TM) due to misincorporation during RNA transcription can result in mutant RNAs, or epimutations, that generate proteins with altered properties. TM has long been hypothesized to play a role in aging, cancer, and viral and bacterial evolution. However, inadequate methodologies have limited progress in elucidating a causal association. We present a high-throughput, highly accurate RNA sequencing method to measure epimutations with single-molecule sensitivity. Accurate RNA consensus sequencing (ARC-seq) uniquely combines RNA barcoding and generation of multiple cDNA copies per RNA molecule to eliminate errors introduced during cDNA synthesis, PCR, and sequencing...
August 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28797720/multi-isocenter-hybrid-electron-and-rapid-arc-photon-treatment-for-reirradiation-of-extensive-recurrent-inflammatory-breast-cancer
#17
Ryan S Youland, Randi R Finley, Ivy A Petersen, Kimberly S Corbin
Delivering an adequate and homogenous dose to a large volume of recurrent cutaneous disease can be challenging even with modern techniques. Here, the authors describe a 3-isocenter hybrid electron and rapid arc photon radiation treatment plan to provide optimal tumor coverage to an extensive recurrence of inflammatory breast carcinoma. This approach allowed for homogeneous treatment of a large volume while effectively modulating dose to previously irradiated tissue and minimizing dose to the underlying heart, lungs and brachial plexus...
August 7, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28797603/chronic-traumatic-stress-impairs-memory-in-mice-potential-roles-of-acetylcholine-neuroinflammation-and-corticotropin-releasing-factor-expression-in-the-hippocampus
#18
Ami Bhakta, Kartheek Gavini, Euitaek Yang, Lani Lyman-Henley, Kodeeswaran Parameshwaran
Chronic stress in humans can result in multiple adverse psychiatric and neurobiological outcomes, including memory deficits. These adverse outcomes can be more severe if each episode of stress is very traumatic. When compared to acute or short term stress relatively little is known about the effects of chronic traumatic stress on memory and molecular changes in hippocampus, a brain area involved in memory processing. Here we studied the effects of chronic traumatic stress in mice by exposing them to adult Long Evan rats for 28 consecutive days and subsequently analyzing behavioral outcomes and the changes in the hippocampus...
August 8, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28797410/prevalence-predictors-and-clinical-presentation-of-a-calcified-nodule-as-assessed-by-optical-coherence-tomography
#19
Tetsumin Lee, Gary S Mintz, Mitsuaki Matsumura, Wenbin Zhang, Yang Cao, Eisuke Usui, Yoshihisa Kanaji, Tadashi Murai, Taishi Yonetsu, Tsunekazu Kakuta, Akiko Maehara
OBJECTIVES: This study sought to determine the anatomic characteristics and clinical presentation associated with a calcified nodule (CN) as assessed by optical coherence tomography. BACKGROUND: CN is an unusual but demonstrable cause of acute coronary syndromes (ACS). METHODS: We studied 889 de novo culprit lesions in 889 patients (48% ACS) who underwent optical coherence tomography before intervention. CN was defined as an eruptive accumulation of nodular calcification (small fractured calcifications)...
August 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28797408/in-vivo-calcium-detection-by-comparing-optical-coherence-tomography-intravascular-ultrasound-and-angiography
#20
Xiao Wang, Mitsuaki Matsumura, Gary S Mintz, Tetsumin Lee, Wenbin Zhang, Yang Cao, Akiko Fujino, Yongqing Lin, Eisuke Usui, Yoshihisa Kanaji, Tadashi Murai, Taishi Yonetsu, Tsunekazu Kakuta, Akiko Maehara
OBJECTIVES: The aim of this study was to evaluate optical coherence tomography (OCT) and intravascular ultrasound (IVUS) versus coronary angiography in the assessment of target lesion calcification and its effect on stent expansion. BACKGROUND: IVUS is more sensitive than angiography in the detection of coronary artery calcium, but the relationship among IVUS, OCT, and angiography has not been studied. METHODS: Overall, 440 lesions (440 patients with stable angina) underwent OCT- and IVUS-guided stent implantation...
August 2017: JACC. Cardiovascular Imaging
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