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https://www.readbyqxmd.com/read/30537659/insight-into-photocatalytic-activity-universality-and-mechanism-of-copper-chlorine-surface-dual-doped-graphitic-carbon-nitride-for-degrading-various-organic-pollutants-in-water
#1
Chunmei Li, Siyu Yu, Xiaoxu Zhang, Yun Wang, Chunbo Liu, Gang Chen, Hongjun Dong
It is still a challenging work to realize the universality of photocatalytic materials for unselective removing various organic pollutants in water. Here a surface dual-doped Cu/Cl-g-C3 N4 photocatalyst is firstly prepared, which exhibits much more superior photocatalytic performance for degrading multifarious persistent organic pollutants including tetracycline hydrochloride (TC-HCl), o-chlorophenol, bisphenol A and 2-mercaptobenzothiazole in water than pure g-C3 N4 . The high-efficiency and unselective photocatalytic degradation performance derives from the surface dual-doped effect of Cu/Cl elements on g-C3 N4 , which results in the extended visible light harvest range, elevated CB potential and improved the separation efficiency of charge carriers...
December 3, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/30537615/jasmonic-acid-and-ethylene-are-involved-in-the-accumulation-of-osmotin-in-germinating-tomato-seeds
#2
Wioletta E Pluskota, Piotr Pupel, Katarzyna Głowacka, Sylwia B Okorska, Andrzej Jerzmanowski, Hiroyuki Nonogaki, Ryszard J Górecki
The expression of SlNP24 encoding osmotin was studied in germinating tomato seeds Solanum lycopersicum L. cv. Moneymaker. The results show that the accumulation of the transcripts of SlNP24 and its potential upstream regulator TERF1 encoding an ethylene response factor was induced by ethylene and methyl jasmonate in germinating tomato seeds. There was no effect of gibberellins on the expression of the genes studied. The expression of SlNP24 was localized in the micropylar region of the endosperm of tomato seeds...
November 20, 2018: Journal of Plant Physiology
https://www.readbyqxmd.com/read/30537178/patterns-of-structural-change-in-gonads-of-the-divine-dwarfgoby-eviota-epiphanes-as-they-sexually-transition
#3
J M Maxfield, K S Cole
This study documents changes in gonadal structure for the serial hermaphrodite (or bidirectional sex changer) divine dwarfgoby Eviota epiphanes (family Gobiidae) as individuals transition in both directions. To evaluate transitional gonad morphology, individuals actively producing the same gamete type (oocytes or sperm) were set up into pairs and euthanised over a period of 14 days to get a time series of morphological changes during gonad transformation. Results from this study show that rapid changes in the gonad take place at a structural level as individuals change their reproductive function and gamete production...
December 7, 2018: Journal of Fish Biology
https://www.readbyqxmd.com/read/30537155/achieving-efficient-incorporation-of-%C3%AE-electrons-into-graphitic-carbon-nitride-for-markedly-improved-hydrogen-generation
#4
Jing Li, Dandan Wu, James Iocozzia, Haiwei Du, Xueqin Liu, Yupeng Yuan, Wei Zhou, Zhen Li, Zhaoming Xue, Zhiqun Lin
The past decade has witnessed rapid advances in graphitic carbon nitride (g-C3N4) as it is metal-free and affords highly stable hydrogen (H2) generation. Notably, density functional theory calculations show that C-substitution for N in g-C3N4 can increase Π-electron availability and in turn significantly increase the photocatalytic H2 generation. However, creating such C-incorporated g-C3N4 has proven challenging owing to the higher electronegativity of N over C. Here, we report a rapid and highly efficient strategy for introducing C into g-C3N4 by copolymerizing Π-electrons-rich barbituric acid with melamine via a facile microwave-assisted heating, thereby eliminating the issues in conventional electric furnace heating, such as the severe volatilization, due to the mismatch on the sublimation temperatures of barbituric acid and melamine...
December 7, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/30536854/alkene-carboarylation-via-catalyst-free-visible-light-mediated-smiles-rearrangement
#5
David Whalley, Hung Duong, Michael Greaney
A light-mediated Truce-Smiles arylative rearrangement is described that proceeds in the absence of any photocatalyst. The protocol creates two C-C bonds from simple starting materials, with the installation of an aryl ring and a difluoroacetate moiety across unactivated alkenes. The reaction likely proceeds via a radical mechanism, utilizing a light mediated reduction of ethyl bromodifluoroacetate by N,N,N',N'-tetramethylethylenediamine (TMEDA) to set up intermolecular addition to an unactivated alkene, followed by the Truce-Smiles rearrangement...
December 7, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/30536807/amidyl-radical-directed-remote-allylation-of-unactivated-sp3-c-h-bonds-via-organic-photoredox-catalysis
#6
Kui Wu, Lushun Wang, Sonivette Colon-Rodriguez, Gerd-Uwe Flechsig, Ting Wang
The development of visible-light-mediated allylation of unactivated sp3 C-H bonds is reported. The remote allylation was directed by the amidyl radical, which was generated by photocatalytic fragmentation of a pre-functionalized amide precursor. Both aromatic and aliphatic amide derivatives could successfully deliver the remote C-H allylation products in good yields. A variety of electron deficient allyl sulfone systems could be used as δ-carbon radical acceptor.
December 10, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/30536732/substituent-effect-on-metastable-state-photoacids-design-synthesis-and-evaluation-of-their-photochemical-properties
#7
Junning Liu, Wenqi Tang, Lan Sheng, Zhen Du, Ting Zhang, Xing Su, Sean Xiao-An Zhang
Recently, metastable-state photoacids have been widely used to control proton transfer in numerous chemical and biological processes as well as applications with visible light. Generally, substituent groups have great influence on photochemical properties of molecules, which will further affect their applications. Yet, substituent effect on the metastable-state photoacid has not been studied systematically. In this work, sixteen metastable-state photoacid derivatives were designed and synthesized based on substituents involving a large range of σ-π electron-donor-acceptor capability...
December 7, 2018: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/30536203/clinical-and-biophysical-outcomes-of-combining-microfocused-ultrasound-with-visualization-and-calcium-hydroxylapatite-filler-for-facial-treatment
#8
Martina Kerscher, Arti Tania Nurrisyanti, Christine Eiben-Nielson, Susanne Hartmann, Judith Lambert-Baumann
INTRODUCTION: Combined cosmetic treatments are becoming increasingly popular. The objective of this clinical evaluation was to assess the long-term safety and efficacy of combining microfocused ultrasound with visualization (MFU-V) treatment with a calcium hydroxylapatite (CaHA) dermal filler to tighten skin at the submental region and contour the jawline. METHODS: Women with loss of contour and skin laxity in the lower face received MFU-V treatment. If subjects did not respond satisfactorily after 12 weeks, they received CaHA to the jawline...
December 8, 2018: Dermatology and Therapy
https://www.readbyqxmd.com/read/30535944/synthesis-photophysical-electrochemical-and-thermal-study-of-biphenyl-luminophors-green-light-emitting-materials
#9
K G Mane, P B Nagore, S R Pujari
Novel luminophors of anthracene (AN) and tetracene (TN) doped biphenyl were prepared using Conventional Solid State reaction technique. Fluorescence spectroscopy, XRD, SEM, TGA-DSC and Cyclic Voltammetry techniques have been employed for photophysical, electrochemical and thermal study. The X-ray diffraction study revealed the formation of homogeneous biphenyl solid solutions with the added guests AN and TN. Fluorescent biphenyl absorbing short wave UV radiation and emitting at long wave UV radiation has been used as a solid matrix...
December 10, 2018: Journal of Fluorescence
https://www.readbyqxmd.com/read/30535764/-the-trend-towards-full-endoscopic-decompression-current-possibilities-and-limitations-in-disc-herniation-and-spinal-stenosis
#10
REVIEW
S Ruetten, M Komp
BACKGROUND: The most frequent causes of degenerative constrictions of the spinal canal are disk herniations and spinal stenoses. The lumbar and cervical spine is the most affected. SURGICAL PROCEDURES: After conservative treatments have been exhausted, surgical intervention may be necessary. Today, microsurgical decompression is regarded as the standard procedure in the lumbar region, while in the cervical spine, microsurgical anterior decompression and fusion are standard...
December 7, 2018: Der Orthopäde
https://www.readbyqxmd.com/read/30535661/mapping-terrestrial-oil-spill-impact-using-machine-learning-random-forest-and-landsat-8-oli-imagery-a-case-site-within-the-niger-delta-region-of-nigeria
#11
Mohammed S Ozigis, Jorg D Kaduk, Claire H Jarvis
Terrestrial oil pollution is one of the major causes of ecological damage within the Niger Delta region of Nigeria and has caused a considerable loss of mangroves and arable croplands since the discovery of crude oil in 1956. The exact extent of landcover loss due to oil pollution remains uncertain due to the variability in factors such as volume and size of the oil spills, the age of oil, and its effects on the different vegetation types. Here, the feasibility of identifying oil-impacted land in the Niger Delta region of Nigeria with a machine learning random forest classifier using Landsat 8 (OLI spectral bands) and Vegetation Health Indices is explored...
December 7, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/30535633/ls-gsno-and-cwsno-enhancement-processes-using-pca-algorithm-with-loocv-of-r-sm-technique-for-effective-face-recognition-approach
#12
N Rathika, P Suresh, N Sathya
The eminence of image under test is identified with different methods of Face Recognition (FR) which results in failure due to rapid change in pixel intensity. The identification of similar face with inter class similarity is very difficult in imaging. The imaging technology faces difficult in the mounting of intra class variability because of accommodate, intra-class variability because of head pose, illumination conditions, expressions, facial accessories, aging effects and cartoon faces. In the earliest approach, gradient with Zernike momemts were used to regonize the faces, the performance is low to overcome this a new approach is introduced...
December 7, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/30535582/retrograde-fixation-of-the-lesser-trochanter-in-the-adolescent-new-surgical-technique-and-clinical-results-of-two-cases
#13
A Otto, I J Banke, J Mehl, K Beitzel, A B Imhoff, B Scheiderer
INTRODUCTION: Avulsions of the lesser femoral trochanter are rare injuries in the adolescent population. An acute avulsion causes severe functional impairment with compromised hip flexion. Recent literature reports the superiority of surgical treatment for apophyseal avulsion fractures of the pelvis in adolescents. Unfortunately, there are no guidelines for an evidence-based treatment of lesser trochanter avulsions established. We present the cases of two adolescent athletes treated operatively...
December 10, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/30535566/introduction-to-the-special-section-on-bisexual-health-can-you-see-us-now
#14
Wendy B Bostwick, Brian Dodge
Despite comprising the largest proportion of the "lesbian, gay, and bisexual" population, research focusing on the unique health concerns and needs of bisexual individuals is relatively scarce. While health disparities are increasingly well documented among lesbian, gay, bisexual, and transgender individuals relative to their heterosexual and cisgender counterparts, gaps remain in our basic understanding of how health status, behaviors, and outcomes vary within these groups, especially bisexual individuals...
December 10, 2018: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/30535540/quantitative-ct-and-19-f-mri-tracking-of-perfluorinated-encapsulated-mesenchymal-stem-cells-to-assess-graft-immunorejection
#15
Guan Wang, Yingli Fu, Steven M Shea, Shashank Sathyanarayana Hegde, Dara L Kraitchman
OBJECTIVES: Peripheral artery disease (PAD) affects 12-14% of the world population, and many are not eligible for conventional treatment. For these patients, microencapsulated stem cells (SCs) offer a novel means to transplant mismatched therapeutic SCs to prevent graft immunorejection. Using c-arm CT and 19 F-MRI for serial evaluation of dual X-ray/MR-visible SC microcapsules (XMRCaps) in a non-immunosuppressed rabbit PAD model, we explore quantitative evaluation of capsule integrity as a surrogate of transplanted cell fate...
December 10, 2018: Magma
https://www.readbyqxmd.com/read/30534955/a-preliminary-clinical-trial-comparing-split-treatments-to-the-face-and-hand-with-autologous-fat-grafting-and-platelet-rich-plasma-prp-a-3d-irb-approved-study
#16
Gordon H Sasaki
Background: Numerous methodologies have been suggested to enhance fat graft survival, but few long-term studies are available. Objectives: The authors of this institutional review board-approved study investigated the safety and efficacy of utilizing platelet-rich plasma (PRP). Methods: Each of 10 patients received equal volumes of syringe-harvested, centrifuged fat to opposing midfaces with a lateral submuscular aponeurotic system-plication or no face lift and hands that were combined with equal volumes of either concentrated PRP or normal saline...
December 10, 2018: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/30534692/visible-light-promoted-coupling-of-alkynyl-bromides-and-hantzsch-esters-for-the-synthesis-of-internal-alkynes
#17
Zhi-Yong Song, Chun-Lin Zhang, Song Ye
A metal-free visible light promoted C(sp3)-C(sp) coupling reaction of alkynyl bromides and Hantzsch esters was developed, giving internal alkynes with primary, secondary, tertiary alkyl or other functional groups in good to high yields.
December 10, 2018: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/30534650/visibility-of-mri-prostate-lesions-on-b-mode-transrectal-ultrasound
#18
Fabian Steinkohl, Anna Katharina Luger, Renate Pichler, Jasmin Bektic, Peter Rehder, Andrei Lebovici, Friedrich Aigner
AIM: Prostate biopsies are usually done with transrectal ultrasound (TRUS) in B-mode (B TRUS) but multiparametric MRI (mpMRI) is the gold imaging standard for the visualization of clinically significant prostate cancer (PCa), since a lowPCa detection rate is reported for B TRUS. The aim of this study was to assess the visibility of MRI lesions on B TRUS and to determine which factors may influence the visibility on B TRUS. MATERIAL AND METHODS: 142 men with 148 lesions reported on mpMRI underwent a B TRUS/mpMRI fusion targeted biopsy of the prostate and were included in this retrospective study...
December 8, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/30534610/automated-adherent-cell-elimination-by-a-high-speed-laser-mediated-by-a-light-responsive-polymer
#19
Yohei Hayashi, Junichi Matsumoto, Shohei Kumagai, Kana Morishita, Long Xiang, Yohei Kobori, Seiji Hori, Masami Suzuki, Toshiyuki Kanamori, Kazuhiro Hotta, Kimio Sumaru
Conventional cell handling and sorting methods require manual labor, which decreases both cell quality and quantity. To purify adherent cultured cells, cell purification technologies that are high throughput without dissociation and can be utilized in an on-demand manner are expected. Here, we developed a Laser-induced, Light-responsive-polymer-Activated, Cell Killing (LiLACK) system that enables high-speed and on-demand adherent cell sectioning and purification. This system employs a visible laser beam, which does not kill cells directly, but induces local heat production through the trans - cis - trans photo-isomerization of azobenzene moieties...
2018: Communications biology
https://www.readbyqxmd.com/read/30534486/improving-abdominal-plastic-scars-with-a-dietary-supplement-a-comparative-study
#20
Mathieu Haiun, Hersant Barbara, Adrien Durazzo, Mounia Sid-Ahmed-Mezi, Jean-Paul Meningaud
Introduction: Massive weight loss following bariatric surgery has a major functional and aesthetic impact on patients. Many patients are nonetheless reluctant to undergo plastic surgery in connection with their former obesity because they fear potentially large scars, even though such scars are not visible (ie, they are covered by undergarments). Purpose: The aim of this study was to evaluate the quality of wound healing in patients receiving Celergen supplementation following abdominoplasty, compared with a control group...
October 2018: Plastic and Reconstructive Surgery. Global Open
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