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https://www.readbyqxmd.com/read/29705326/acoustic-cavitation-induced-synthesis-of-zirconium-impregnated-activated-carbon-for-effective-fluoride-scavenging-from-water-by-adsorption
#1
Aditi Mullick, Sudarsan Neogi
Environmental concern associated with the side effects of high fluoride content in ground water and surface water has prompted the researchers to look for an efficient, convenient and easy method. Considering the potential of a good adsorbent, present study reports the synthesis of a composite by impregnating zirconium on powdered activated carbon (AC) using ultrasound as the tool for synthesis and applying it for fluoride adsorption from water. The nature of the composite was determined through characterization by scanning electron microscopy (SEM), energy dispersive Xray (EDX), Xray diffraction (XRD), N2 adsorption analysis (BET) and Fourier Transform Infrared Spectroscopy (FTIR) analysis...
July 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/29656081/utilizing-dipole-dipole-cross-correlated-relaxation-for-the-measurement-of-angles-between-pairs-of-opposing-c%C3%AE-h%C3%AE-c%C3%AE-h%C3%AE-bonds-in-anti-parallel-%C3%AE-sheets
#2
T Michael Sabo, Vytautas Gapsys, Korvin F A Walter, R Bryn Fenwick, Stefan Becker, Xavier Salvatella, Bert L de Groot, Donghan Lee, Christian Griesinger
Dipole-dipole cross-correlated relaxation (CCR) between two spin pairs is rich with macromolecular structural and dynamic information on inter-nuclear bond vectors. Measurement of short range dipolar CCR rates has been demonstrated for a variety of inter-nuclear vector spin pairs in proteins and nucleic acids, where the multiple quantum coherence necessary for observing the CCR rate is created by through-bond scalar coupling. In principle, CCR rates can be measured for any pair of inter-nuclear vectors where coherence can be generated between one spin of each spin pair, regardless of both the distance between the two spin pairs and the distance of the two spins forming the multiple quantum coherence...
April 12, 2018: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/29623244/the-relationship-between-bone-mineral-density-and-cardiovascular-function-in-duchenne-muscular-dystrophy-a-retrospective-cohort-study
#3
Tara Kervin, Mathula Thangarajh
INTRODUCTION: Duchenne muscular dystrophy (DMD) is an X-linked genetic disorder that causes progressive skeletal and cardiac muscle weakness in boys. Cardiac dysfunction is a frequent cause of death in DMD. Glucocorticoids are the standard of care in DMD. The long-term use of oral glucocorticoids in DMD is complicated by poor bone health. Epidemiological studies suggest a biological link between the loss of bone mineral density (BMD) and cardiovascular disease, including coronary artery and cerebrovascular diseases...
March 22, 2018: PLoS Currents
https://www.readbyqxmd.com/read/29569878/energy-dispersive-x-ray-edx-microanalysis-a-powerful-tool-in-biomedical-research-and-diagnosis
#4
Manuel Scimeca, Simone Bischetti, Harpreet Kaur Lamsira, Rita Bonfiglio, Elena Bonanno
The Energy Dispersive X-ray (EDX) microanalysis is a technique of elemental analysis associated to electron microscopy based on the generation of characteristic Xrays that reveals the presence of elements present in the specimens. The EDX microanalysis is used in different biomedical fields by many researchers and clinicians. Nevertheless, most of the scientific community is not fully aware of its possible applications. The spectrum of EDX microanalysis contains both semi-qualitative and semi-quantitative information...
March 15, 2018: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/29519415/relative-biological-effectiveness-study-of-lipiodol-based-on-microdosimetric-kinetic-model
#5
Daisuke Kawahara, Hisashi Nakano, Shuichi Ozawa, Akito Saito, Tomoki Kimura, Tatsuhiko Suzuki, Masato Tsuneda, Sodai Tanaka, Yoshimi Ohno, Yuji Murakami, Yasushi Nagata
OBJECTIVES: We examine the contrast agent Lipiodol effect on the relative biological effectiveness (RBE) values for flattening filter free (FFF) and flattening filter (FF) beams of 6 MV-Xray (6 MVX) and 10 MVX. METHODS: Lipiodol was placed at 5 cm depth in water. According to the microdosimetric kinetic model, the RBE values for killing the human liver hepatocellular cells were calculated from dose and lineal energy (yd(y)) from Monte Carlo simulations. RBE200kVX and RBECo were defined as the ratios of dose using reference radiation (200 kVX, Co-ɤ) to the dose of test radiation (FFF and FF beams for 6 MV and 10 MV) to produce the same biological effects...
February 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29470445/recognition-of-amp-adp-and-atp-through-cooperative-binding-by-cu-ii-and-zn-ii-complexes-containing-urea-and-or-phenylboronic-acid-moieties
#6
Israel Carreira-Barral, Isabel Fernández-Pérez, Marta Mato-Iglesias, Andrés de Blas, Carlos Platas-Iglesias, David Esteban-Gómez
We report a series of Cu(II) and Zn(II) complexes with different ligands containing a dipicolyl unit functionalized with urea groups that may contain or not a phenylboronic acid function. These complexes were designed for the recognition of phosphorylated anions through coordination to the metal ion reinforced by hydrogen bonds involving the anion and NH groups of urea. The complexes were isolated and several adducts with pyrophosphate were characterized using Xray diffraction measurements. Coordination of one of the urea nitrogen atoms to the metal ion promoted the hydrolysis of the ligands containing 1,3-diphenylurea units, while ligands bearing 1-ethyl-3-phenylurea groups did not hydrolyze significantly at room temperature...
February 22, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29348639/evidence-of-local-structural-influence-on-the-shape-driven-magnetic-anisotropy-in-electronically-excited-ni-nanoparticles-embedded-in-sio-2-matrix
#7
Debalaya Sarker, Saswata Bhattacharya, H Kumar, Pankaj Srivastava, Santanu Ghosh
The reliance of modern electronic era on ultrafast data recording has made the search for novel tools to tune nano-scale magnetic-anisotropy (MA) never-ending. We demonstrate a strong correlation between the spin-spin interactions, local atomic structure and the MA of Ni nanoparticles (NPs) embedded inside SiO2 matrix under swift heavy ion (SHI) irradiation. In contrast to traditional understandings, MA in Ni NPs along with their aspect ratio, first increases upto 5 × 1013 ions/cm2 SHI fluence (5e13) and gets reduced at highest fluence...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29216919/the-acutely-injured-acromioclavicular-joint-which-imaging-modalities-should-be-used-for-accurate-diagnosis-a-systematic-review
#8
Jonas Pogorzelski, Knut Beitzel, Francesco Ranuccio, Klaus Wörtler, Andreas B Imhoff, Peter J Millett, Sepp Braun
BACKGROUND: The management of acute acromioclavicular (AC) joint injuries depends on the degree of injury diagnosed by the Rockwood classification. Inadequate imaging and not selecting the most helpful imaging protocols can often lead to incorrect diagnosis of the injury. A consensus on a diagnostic imaging protocol for acute AC joint injuries does not currently exist. Therefore we conducted a systematic review of the literature considering three diagnostic parameters for patients with acromioclavicular (AC) joint injuries: 1) Assessment of vertical instability; 2) Assessment of horizontal instability; 3) Benefit of weighted panoramic views...
December 8, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29193997/predicting-airport-screening-officers-visual-search-competency-with-a-rapid-assessment
#9
Stephen R Mitroff, Justin M Ericson, Benjamin Sharpe
Objective The study's objective was to assess a new personnel selection and assessment tool for aviation security screeners. A mobile app was modified to create a tool, and the question was whether it could predict professional screeners' on-job performance. Background A variety of professions (airport security, radiology, the military, etc.) rely on visual search performance-being able to detect targets. Given the importance of such professions, it is necessary to maximize performance, and one means to do so is to select individuals who excel at visual search...
March 2018: Human Factors
https://www.readbyqxmd.com/read/29123034/the-virulence-associated-protein-hsva-from-the-fire-blight-pathogen-erwinia-amylovora-is-a-polyamine-amidinotransferase
#10
Sreejesh Shanker, Grace K Schaefer, Benjamin K Barnhart, Vicki L Wallace-Kneale, Dorsin Chang, Thomas J Coyle, David A Metzler, Jeffrey Huang, Jeffrey A Lawton
Studies of virulence determinants in the bacterial phytopathogen Erwinia amylovora , the cause of devastating fire blight disease in apple and pear, have shown that HsvA, a putative amidinotransferase enzyme located in the Hrp pathogenicity island, is required for systemic infection in apple. However, the mechanism by which HsvA contributes to virulence is unclear. To investigate the role of HsvA in virulence, we carried out a series of biochemical and structural studies to characterize the amidinotransferase activity of HsvA...
December 29, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29098883/solid-dispersion-adsorbate-technique-for-improved-dissolution-and-flow-properties-of-lurasidone-hydrochloride-characterization-using-3-2-factorial-design
#11
Ashok Mahajan, Naazneen Surti, Pooja Koladiya
The aim of the present study was to improve the dissolution and flow properties of lurasidone hydrochloride (LH) by solid dispersion adsorbate (SDA) technique. Solid dispersions (SDs) of LH were prepared by fusion method using Poloxamer P188. The melt dispersion was adsorbed onto the porous carrier Florite (calcium silicate). A 32 factorial design was employed to quantify the effect of two independent variables, namely ratio of carrier (Poloxamer 188) and LH in SD and ratio of adsorbent (Florite) to SD. SDA granules of LH were studied for flow properties and characterized using differential scanning calorimetry, scanning electron microscopy, and X-ray diffraction...
March 2018: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28956616/xrays-examining-relevance-of-articles-to-young-survivors-program-survey-of-information-needs-and-media-use-by-young-breast-cancer-survivors-and-young-women-at-high-risk-for-breast-cancer
#12
Robin H Pugh Yi, Lisa F Rezende, Julie Huynh, Karen Kramer, Melissa Cranmer, Lisa Schlager, Craig T Dearfield, Susan J Friedman
Women age 45 years or younger with breast cancer, or who are at high-risk for breast cancer due to previously having the disease or to genetic risk, have distinct health risks and needs from their older counterparts. Young women frequently seek health information through the Internet and mainstream media, but often find it does not address their particular concerns, that it is difficult to evaluate or interpret, or even misleading. To help women better understand media coverage about new research, Facing Our Risk of Cancer Empowered (FORCE) developed the CDC-funded XRAYS (eXamining Relevance of Articles to Young Survivors) program...
September 28, 2017: Health Communication
https://www.readbyqxmd.com/read/28866486/estimation-of-basis-line-integrals-in-a-spectral-distortion-modeled-photon-counting-detector-using-low-rank-approximation-based-x-ray-transmittance-modeling-k-edge-imaging-application
#13
Okkyun Lee, Steffen Kappler, Christoph Polster, Katsuyuki Taguchi
Photon counting detectors (PCDs) provide multiple energy-dependent measurements for estimating basis line-integrals. However, the measured spectrum is distorted from the spectral response effect (SRE) via charge sharing, K-fluorescence emission, and so on. Thus, in order to avoid bias and artifacts in images, the SRE needs to be compensated. For this purpose, we recently developed a computationally efficient three-step algorithm for PCD-CT without contrast agents by approximating smooth X-ray transmittance using low-order polynomial bases...
November 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28860193/structural-and-functional-insights-into-the-interaction-between-the-cas-family-scaffolding-protein-p130cas-and-the-focal-adhesion-associated-protein-paxillin
#14
Chi Zhang, Darcie J Miller, Cristina D Guibao, Dominique M Donato, Steven K Hanks, Jie J Zheng
The Cas family scaffolding protein p130Cas is a Src substrate localized in focal adhesions (FAs) and functions in integrin signaling to promote cell motility, invasion, proliferation, and survival. p130Cas targeting to FAs is essential for its tyrosine phosphorylation and downstream signaling. Although the N-terminal SH3 domain is important for p130Cas localization, it has also been reported that the C-terminal region is involved in p130Cas FA targeting. The C-terminal region of p130Cas or Cas family homology domain (CCHD) has been reported to adopt a structure similar to that of the focal adhesion kinase C-terminal focal adhesion-targeting domain...
November 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28774434/automatic-measurement-of-the-sinus-of-valsalva-by-image-analysis
#15
Fabrice Mairesse, Cédric Blanchard, Arnaud Boucher, Tadeusz Sliwa, Alain Lalande, Yvon Voisin
BACKGROUND AND OBJECTIVES: Despite the importance of the morphology of the sinus of Valsalva in the behavior of heart valves and the proper irrigation of coronary arteries, the study of these sinuses from medical imaging is still limited to manual radii measurements. This paper aims to present an automatic method to measure the sinuses of Valsalva on medical images, more specifically on cine MRI and Xray CT. METHODS: This paper introduces an enhanced method to automatically localize and extract each sinus of Valsalva edge and its relevant points...
September 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28682254/multiscale-shannon-s-entropy-modelling-of-orientation-and-distance-in-steel-fiber-micro-tomography-data
#16
John P Chiverton, Olubisi Ige, Stephanie J Barnett, Tony Parry
This work is concerned with the modelling and analysis of the orientation and distance between steel fibers in Xray Micro-Tomography (XCT) data. The advantage of combining both orientation and separation in a model is that it helps provide a detailed understanding of how the steel fibers are arranged, which is easy to compare. The developed models are designed to summarise the randomness of the orientation distribution of the steel fibers both locally and across an entire volume based on multiscale entropy...
June 30, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28629466/intra-articular-injection-in-the-knee-of-adipose-derived-stromal-cells-stromal-vascular-fraction-and-platelet-rich-plasma-for-osteoarthritis
#17
Himanshu Bansal, Kristin Comella, Jerry Leon, Poonam Verma, Diwaker Agrawal, Prasad Koka, Thomas Ichim
BACKGROUND: Stromal vascular fraction (SVF) can easily be obtained from a mini-lipoaspirate procedure of fat tissue and platelet rich plasma (PRP) can be obtained from peripheral blood. We evaluated the safety and preliminary efficacy of administering SVF and PRP intra-articularly into patients with osteoarthritis grade 1 and 2. METHODS: A total of ten patients underwent a local tumescent liposuction procedure to remove approximately 100 ml of fat tissue from the abdomen...
June 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28435645/angiofibrolipoma-of-posterior-mediastinum-with-transforaminal-extension
#18
Monia Attia, Imen Megdiche, Henda Neji, Ameur Belhadj, Ines Baccouche, Soussen Hantous Zannad, Khaoula Ben Miled M'rad
Angiofibrolipoma is a histological variant of lipoma, which commonly occurs in subcutaneous tissues. In the present report we illustrate the case of an angiofibrolipoma of the posterior upper mediastinum in a 75-year-old man presented with progressive chest pain. Xray chest showed a homogeneous opacity vertically oriented along the right lateral aspect of thoracic vertebrae with an obtuse angle to the mediastinum. The upper extremity of the mass extended above the superior clavicle, suggestive of a posterior mediastinal lesion...
March 24, 2017: Rare Tumors
https://www.readbyqxmd.com/read/28367426/percutaneous-autologous-bone-marrow-derived-mesenchymal-stromal-cell-implantation-is-safe-for-reconstruction-of-human-lower-limb-long-bone-atrophic-nonunion
#19
Mohsen Emadedin, Narges Labibzadeh, Roghayeh Fazeli, Fatemeh Mohseni, Seyedeh Esmat Hosseini, Reza Moghadasali, Soura Mardpour, Vajiheh Azimian, Alireza Goodarzi, Maede Ghorbani Liastani, Ali Mirazimi Bafghi, Mohamadreza Baghaban Eslaminejad, Nasser Aghdami
OBJECTIVE: Nonunion is defined as a minimum of a 9-month period of time since an injury with no visibly progressive signs of healing for 3 months. Recent studies show that application of mesenchymal stromal cells (MSCs) in the laboratory setting is effective for bone regeneration. Animal studies have shown that MSCs can be used to treat nonunions. For the first time in an Iranian population, the present study investigated the safety of MSC implantation to treat human lower limb long bone nonunion...
April 2017: Cell Journal
https://www.readbyqxmd.com/read/28306639/defining-the-role-of-the-lower-limbs-in-compensating-for-sagittal-malalignment
#20
Renaud Lafage, Barthelemy Liabaud, Bassel G Diebo, Jonathan H Oren, Shaleen Vira, Sébastien Pesenti, Themistocles S Protopsaltis, Thomas J Errico, Frank J Schwab, Virginie Lafage
MINI: Despite differences in sagittal malalignment, antero-posterior pelvic translation maintained the position of T9 in line with the ankles, independently of sagittal vertical axis. Pelvic tilt was directly predicted by lower limb compensatory mechanisms. Therefore, these adaptation mechanisms being included in pelvic tilt analysis, it does not need additional consideration in the surgical planning. STUDY DESIGN: Retrospective review. OBJECTIVE: To investigate the role of lower limbs compensation with progressive sagittal malalignment...
November 15, 2017: Spine
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