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https://www.readbyqxmd.com/read/28775275/calibration-of-multi-layered-probes-with-low-high-magnetic-moments
#1
Vishal Panchal, Héctor Corte-León, Boris Gribkov, Luis Alfredo Rodriguez, Etienne Snoeck, Alessandra Manzin, Enrico Simonetto, Silvia Vock, Volker Neu, Olga Kazakova
We present a comprehensive method for visualisation and quantification of the magnetic stray field of magnetic force microscopy (MFM) probes, applied to the particular case of custom-made multi-layered probes with controllable high/low magnetic moment states. The probes consist of two decoupled magnetic layers separated by a non-magnetic interlayer, which results in four stable magnetic states: ±ferromagnetic (FM) and ±antiferromagnetic (A-FM). Direct visualisation of the stray field surrounding the probe apex using electron holography convincingly demonstrates a striking difference in the spatial distribution and strength of the magnetic flux in FM and A-FM states...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28772374/phase-equilibria-and-magnetic-phases-in-the-ce-fe-co-b-system
#2
Tian Wang, Dmytro Kevorkov, Mamoun Medraj
Ce-Fe-Co-B is a promising system for permanent magnets. A high-throughput screening method combining diffusion couples, key alloys, Scanning Electron Microscope/Wavelength Dispersive X-ray Spectroscope (SEM/WDS), and Magnetic Force Microscope (MFM) is used in this research to understand the phase equilibria and to explore promising magnetic phases in this system. Three magnetic phases were detected and their homogeneity ranges were determined at 900 °C, which were presented by the formulae: Ce₂Fe14-xCoxB (0 ≤ x ≤ 4...
December 28, 2016: Materials
https://www.readbyqxmd.com/read/28772068/porous-metal-organic-polyhedral-frameworks-with-optimal-molecular-dynamics-and-pore-geometry-for-methane-storage
#3
Yong Yan, Daniil I Kolokolov, Ivan da Silva, Alexander G Stepanov, Alexander J Blake, Anne Dailly, Pascal Manuel, Chiu C Tang, Sihai Yang, Martin Schröder
Natural gas (methane, CH4) is widely considered as a promising energy carrier for mobile applications. Maximising the storage capacity is the primary goal for the design of future storage media. Here we report the CH4 storage properties in a family of isostructural (3,24)-connected porous materials, MFM-112a, MFM-115a and MFM-132a with different linker backbone functionalisation. Both MFM-112a and MFM-115a show excellent CH4 uptakes of 236 and 256 cm3 (STP) cm-3 (v/v) at 80 bar and room temperature, respectively...
August 3, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28725270/inter-segmental-motions-of-the-foot-differences-between-younger-and-older-healthy-adult-females
#4
Dong Yeon Lee, Sang Gyo Seo, Eo Jin Kim, Doo Jae Lee, Kee Jeong Bae, Kyoung Min Lee, In Ho Choi
BACKGROUND: Although accumulative evidence exists that support the applicability of multi-segmental foot models (MFMs) in evaluating foot motion in various pathologic conditions, little is known of the effect of aging on inter-segmental foot motion. The objective of this study was to evaluate differences in inter-segmental motion of the foot between older and younger adult healthy females during gait using a MFM with 15-marker set. METHODS: One hundred symptom-free females, who had no radiographic evidence of osteoarthritis, were evaluated using MFM with 15-marker set...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28706216/highly-efficient-multicolor-multifocus-microscopy-by-optimal-design-of-diffraction-binary-gratings
#5
Bassam Hajj, Laura Oudjedi, Jean-Bernard Fiche, Maxime Dahan, Marcelo Nollmann
Multifocus microscopy (MFM) allows sensitive and fast three-dimensional imaging. It relies on the efficient design of diffraction phase gratings yielding homogeneous intensities in desired diffraction orders. Such performances are however guaranteed only for a specific wavelength. Here, we discuss a novel approach for designing binary phase gratings with dual color properties and improved diffraction efficiency for MFM. We simulate binary diffraction gratings with tunable phase shifts to explore its best diffraction performances...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28705036/pregnancy-outcomes-among-women-with-systemic-lupus-erythematosus-a-retrospective-cohort-study-from-thailand
#6
S Phansenee, R Sekararithi, P Jatavan, T Tongsong
Objective The objective of this paper is to compare adverse pregnancy outcomes between normal pregnancies and pregnancies with systemic lupus erythematosus (SLE), particularly focusing on uncomplicated SLE with remission. Methods A retrospective cohort study was conducted by accessing the Maternal-Fetal Medicine (MFM) Unit database and the full medical records of the women. The records of singleton pregnancies with SLE and no underlying disease were assigned as the study group and their medical records were reviewed...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28651447/the-association-between-fetal-fibronectin-and-spontaneous-preterm-birth-in-twin-pregnancies-with-a-shortened-cervical-length
#7
Kathy C Matthews, Simi Gupta, Jennifer Lam-Rachlin, Daniel H Saltzman, Andrei Rebarber, Nathan S Fox
OBJECTIVE: To estimate the association between a positive fetal fibronectin (fFN) and spontaneous preterm birth (SPTB) in twin pregnancies with a shortened cervical length (CL). STUDY DESIGN: Retrospective cohort study of asymptomatic twin pregnancies managed by a single MFM practice from 2005 to 2016. We included all women with a shortened CL ≤25 mm at 22-28 weeks, and compared outcomes between women with a positive and negative fFN result. RESULTS: One hundred fifty-five patients were included, 129 (83...
July 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28629247/obstetric-practice-patterns-in-pregnancies-complicated-by-fetal-trisomy-13-or-18
#8
Sarah K Dotters-Katz, Marcela C Smid, Cora Mcelwain, Jeffrey A Kuller, Jay Schulkin
PURPOSE: Describe practice patterns among obstetrician/gynecologists (OB/GYNs) when caring for women with pregnancy complicated by fetal trisomy 13(T13) or 18(T18), and compare these between maternal-fetal-medicine (MFM) and non-MFM providers. MATERIALS AND METHODS: We conducted an electronic survey using the American College of Obstetricians and Gynecologists database. Using simple statistics, we describe demographics and practice patterns among respondents, and compare those of MFM practitioners with non-MFM providers...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28622600/grain-size-quantification-by-optical-microscopy-electron-backscatter-diffraction-and-magnetic-force-microscopy
#9
Hansheng Chen, Yin Yao, Jacob A Warner, Jiangtao Qu, Fan Yun, Zhixiao Ye, Simon P Ringer, Rongkun Zheng
Quantification of microstructure, especially grain size, in polycrystalline materials is a vital aspect to understand the structure-property relationships in these materials. In this paper, representative characterization techniques for determining the grain size, including optical microscopy (OM), electron backscatter diffraction (EBSD) in the scanning electron microscopy (SEM), and atomic force microscopy/magnetic force microscopy (AFM/MFM), are thoroughly evaluated in comparison, illustrated by rare-earth sintered Nd-Fe-B permanent magnets...
June 13, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28620542/preconception-consultations-with-maternal-fetal-medicine-for-obese-women-a-retrospective-chart-review
#10
Charlotte M Page, Elizabeth S Ginsburg, Randi H Goldman, Chloe A Zera
BACKGROUND: Obesity is associated with impaired fertility and pregnancy complications, and preconception weight loss may improve some of these outcomes. The purpose of this study was to evaluate the quality and effectiveness of Maternal Fetal Medicine (MFM) preconception consults for obese women. METHODS: We performed a retrospective chart review examining 162 consults at an academic medical center from 2008 to 2014. The main outcome measures included consultation content - e...
2017: Fertility Research and Practice
https://www.readbyqxmd.com/read/28555689/epitaxial-magnetite-nanorods-with-enhanced-room-temperature-magnetic-anisotropy
#11
Sayan Chandra, Raja Das, Vijaysankar Kalappattil, Tatiana Eggers, Catalin Harnagea, Riad Nechache, Manh-Huong Phan, Federico Rosei, Hariharan Srikanth
Nanostructured magnetic materials with well-defined magnetic anisotropy are very promising as building blocks in spintronic devices that operate at room temperature. Here we demonstrate the epitaxial growth of highly oriented Fe3O4 nanorods on a SrTiO3 substrate by hydrothermal synthesis without the use of a seed layer. The epitaxial nanorods showed biaxial magnetic anisotropy with an order of magnitude difference between the anisotropy field values of the easy and hard axes. Using a combination of conventional magnetometry, transverse susceptibility, magnetic force microscopy (MFM) and magneto-optic Kerr effect (MOKE) measurements, we investigate magnetic behavior such as temperature dependent magnetization and anisotropy, along with room temperature magnetic domain formation and its switching...
May 30, 2017: Nanoscale
https://www.readbyqxmd.com/read/28543538/clinical-and-histopathological-features-of-myofibrillar-myopathy-in-warmblood-horses
#12
S J Valberg, A M Nicholson, S S Lewis, R A Reardon, C J Finno
BACKGROUND: To report a novel exertional myopathy, myofibrillar myopathy (MFM) in Warmblood (WB) horses. OBJECTIVES: To 1) describe the distinctive clinical and myopathic features of MFM in Warmblood horses and 2) investigate the potential inheritance of MFM in a Warmblood family. STUDY DESIGN: Retrospective selection of MFM cases and prospective evaluation of a Warmblood family. METHODS: Retrospectively, muscle biopsies were selected from Warmblood horses diagnosed with MFM and clinical histories obtained (n = 10)...
May 22, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28523528/comparison-of-visual-outcomes-and-reading-performance-after-bilateral-implantation-of-multifocal-intraocular-lenses-with-bilateral-monofocal-intraocular-lenses
#13
Özge Güngör Akkuş, Ikbal Seza Petriçli
PURPOSE: To compare the visual acuity outcomes, contrast sensitivity function (CS) and reading ability in patients with bilateral multifocal intraocular lenses and patients with bilateral monofocal lenses. SETTING: Vizyon Eye Center, Denizli, Turkey. DESIGN: Comparative case series. METHODS: Consecutive bilateral cataract patients having implantation of Acriva Reviol MFM 611 multifocal IOLs (Group A) or Acriva BB UD 613 monofocal IOLs (Group B) were included...
May 18, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28507700/stepwise-observation-and-quantification-and-mixed-matrix-membrane-separation-of-co2-within-a-hydroxy-decorated-porous-host
#14
Christopher G Morris, Nicholas M Jacques, Harry G W Godfrey, Tamoghna Mitra, Detlev Fritsch, Zhenzhong Lu, Claire A Murray, Jonathan Potter, Tom M Cobb, Fajin Yuan, Chiu C Tang, Sihai Yang, Martin Schröder
The identification of preferred binding domains within a host structure provides important insights into the function of materials. State-of-the-art reports mostly focus on crystallographic studies of empty and single component guest-loaded host structures to determine the location of guests. However, measurements of material properties (e.g., adsorption and breakthrough of substrates) are usually performed for a wide range of pressure (guest coverage) and/or using multi-component gas mixtures. Here we report the development of a multifunctional gas dosing system for use in X-ray powder diffraction studies on Beamline I11 at Diamond Light Source...
April 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28506026/raman-submicron-spatial-mapping-of-individual-mn-doped-zno-nanorods
#15
V Strelchuk, O Kolomys, S Rarata, P Lytvyn, O Khyzhun, Chan Oeurn Chey, Omer Nur, Magnus Willander
ZnO nanorods (NRs) arrays doped with a large concentration of Mn synthesized by aqueous chemical growth and were characterized by SEM, photoluminescence, Raman scattering, magnetic force microscopy (MFM). By comparison of spectra taken on pure and Mn-doped ZnO NRs, a few new Raman impurity-related phonon modes, resulting from the presence of Mn in the investigated samples. We also present a vibrational and magnetic characterization of individual lying nanorods using Raman and MFM imaging. Confocal scanning micro-Raman mapping of the spatial distribution of intensity and frequency of phonon modes in single Mn-doped ZnO NRs nanorods is presented and analyzed for the first time...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28460889/safety-and-efficacy-of-olesoxime-in-patients-with-type-2-or-non-ambulatory-type-3-spinal-muscular-atrophy-a-randomised-double-blind-placebo-controlled-phase-2-trial
#16
RANDOMIZED CONTROLLED TRIAL
Enrico Bertini, Eric Dessaud, Eugenio Mercuri, Francesco Muntoni, Janbernd Kirschner, Carol Reid, Anna Lusakowska, Giacomo P Comi, Jean-Marie Cuisset, Jean-Louis Abitbol, Bruno Scherrer, Patricia Sanwald Ducray, Jeppe Buchbjerg, Eduardo Vianna, W Ludo van der Pol, Carole Vuillerot, Thomas Blaettler, Paulo Fontoura
BACKGROUND: Spinal muscular atrophy (SMA) is a progressive motor neuron disease causing loss of motor function and reduced life expectancy, for which limited treatment is available. We investigated the safety and efficacy of olesoxime in patients with type 2 or non-ambulatory type 3 SMA. METHODS: This randomised, double-blind, placebo-controlled, phase 2 study was done in 22 neuromuscular care centres in Belgium, France, Germany, Italy, Netherlands, Poland, and the UK...
July 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28445486/a-metamodel-for-mobile-forensics-investigation-domain
#17
Abdulalem Ali, Shukor Abd Razak, Siti Hajar Othman, Arafat Mohammed, Faisal Saeed
With the rapid development of technology, mobile phones have become an essential tool in terms of crime fighting and criminal investigation. However, many mobile forensics investigators face difficulties with the investigation process in their domain. These difficulties are due to the heavy reliance of the forensics field on knowledge which, although a valuable resource, is scattered and widely dispersed. The wide dispersion of mobile forensics knowledge not only makes investigation difficult for new investigators, resulting in substantial waste of time, but also leads to ambiguity in the concepts and terminologies of the mobile forensics domain...
2017: PloS One
https://www.readbyqxmd.com/read/28410283/postoperative-evaluation-of-bilateral-reading-performance-with-two-intraocular-lenses-twelve-month-results
#18
Semra Akkaya Turhan, Ebru Toker
PURPOSE: The aim of this study was to compare the bilateral reading performances within the first 12 months after the implantation of two intraocular lens (IOL) models. METHODS: The patients involved in this research had bilateral phacoemulsification and implantation of the Acriva Reviol MFM 613 IOL (group 1) or AcrySof ReSTOR SN6AD1 apodized multifocal IOL (group 2). The bilateral reading performance was evaluated preoperatively and postoperatively using the MNREAD acuity charts...
April 12, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28406501/culture-dependent-enumeration-methods-failed-to-simultaneously-detect-disinfectant-injured-and-genetically-modified-escherichia-coli-in-drinking-water
#19
Jing Li, Lu Liu, Dong Yang, Wei-Li Liu, Zhi-Qiang Shen, Hong-Mei Qu, Zhi-Gang Qiu, Ai-Ming Hou, Da-Ning Wang, Chen-Shi Ding, Jun-Wen Li, Jian-Hua Guo, Min Jin
Underestimation of Escherichia coli in drinking water, an indicator microorganism of sanitary risk, may result in potential risks of waterborne diseases. However, the detection of disinfectant-injured or genetically modified (GM) E. coli has been largely overlooked so far. To evaluate the accuracy of culture-dependent enumeration with regard to disinfectant-injured and GM E. coli, chlorine- or ozone-injured wild-type (WT) and GM E. coli were prepared and characterized. Then, water samples contaminated with these E...
May 24, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28397832/relating-surface-roughness-and-magnetic-domain-structure-to-giant-magneto-impedance-of-co-rich-melt-extracted-microwires
#20
S D Jiang, T Eggers, O Thiabgoh, D W Xing, W D Fei, H X Shen, J S Liu, J R Zhang, W B Fang, J F Sun, H Srikanth, M H Phan
Understanding the relationship between the surface conditions and giant magneto-impedance (GMI) in Co-rich melt-extracted microwires is key to optimizing their magnetic responses for magnetic sensor applications. The surface magnetic domain structure (SMDS) parameters of ~45 μm diameter Co69.25Fe4.25Si13B13.5-xZrx (x = 0, 1, 2, 3) microwires, including the magnetic domain period (d) and surface roughness (Rq) as extracted from the magnetic force microscopy (MFM) images, have been correlated with GMI in the range 1-1000 MHz...
April 11, 2017: Scientific Reports
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