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Stephanie LeeAnne Erickson, Aaron David Gambrell, James Fulcher, Michael Ward
The ingestion of one's own feces is referred to as coprophagia. In this report, the author discusses a case of coprophagia-associated death in a 36-year-old woman. The woman had a history of intellectual disability, bipolar disorder, and schizoaffective disorder and was living in a group home. At autopsy, examination of the upper airway revealed 4 distinct spherical boli of impacted fecal matter in the oral cavity and pharynx. Death was attributed to asphyxia due to aspiration of stool bolus during an episode of coprophagia...
September 19, 2017: American Journal of Forensic Medicine and Pathology
Satish K Garg, Robert R Henry, Phillip Banks, John B Buse, Melanie J Davies, Gregory R Fulcher, Paolo Pozzilli, Diane Gesty-Palmer, Pablo Lapuerta, Rafael Simó, Thomas Danne, Darren K McGuire, Jake A Kushner, Anne Peters, Paul Strumph
Background In most patients with type 1 diabetes, adequate glycemic control is not achieved with insulin therapy alone. We evaluated the safety and efficacy of sotagliflozin, an oral inhibitor of sodium-glucose cotransporters 1 and 2, in combination with insulin treatment in patients with type 1 diabetes. Methods In this phase 3, double-blind trial, which was conducted at 133 centers worldwide, we randomly assigned 1402 patients with type 1 diabetes who were receiving treatment with any insulin therapy (pump or injections) to receive sotagliflozin (400 mg per day) or placebo for 24 weeks...
September 13, 2017: New England Journal of Medicine
H Švajdlenková, A Ruff, P Lunkenheimer, A Loidl, J Bartoš
We report a broadband dielectric spectroscopic (BDS) study on the clustering fragile glass-former meta-toluidine (m-TOL) from 187 K up to 289 K over a wide frequency range of 10(-3)-10(9) Hz with focus on the primary α relaxation and the secondary β relaxation above the glass temperature Tg. The broadband dielectric spectra were fitted by using the Havriliak-Negami (HN) and Cole-Cole (CC) models. The β process disappearing at Tβ,disap = 1.12Tg exhibits non-Arrhenius dependence fitted by the Vogel-Fulcher-Tamman-Hesse equation with T0β(VFTH) in accord with the characteristic differential scanning calorimetry (DSC) limiting temperature of the glassy state...
August 28, 2017: Journal of Chemical Physics
Elizabeth McElnea, Kirk Stephenson, Tim Fulcher
While pyoderma gangrenosum (PG) most commonly affects the skin it can also involve other organs. It rarely affects the eye, orbit, or adnexa. Its early recognition and proper management with prompt initiation of immunosuppressive therapy are essential for the preservation of the eye and, in turn, vision, in these cases. Here, we review the limited literature already published regarding ocular involvement in PG.
September 1, 2017: Orbit
Muhammad Farooq, Ali Fulcher, Rui-De Xue, Michael L Smith, Jeremy L Anderson, Alex R Richardson, Jennifer A Knapp
Inconsistencies in efficacy of ultra-low volume (ULV) ground applications in the literature are linked to the lack of adjustments in sprayer parameters. To investigate the effect of nozzle orientation of a truck-mounted ULV sprayer on application efficacy, a study was conducted at St. Johns County Fairground, Elkton, FL, during the summer of 2014. The efficacy was assessed by mortality of caged adult Aedes aegypti, spray deposition, and droplet size spectrum up to 122 m from the spray line. Aqualuer 20-20 (20...
September 2017: Journal of the American Mosquito Control Association
Matthew A Sdano, James M Fulcher, Sowmiya Palani, Mahesh B Chandrasekharan, Timothy J Parnell, Frank G Whitby, Tim Formosa, Christopher P Hill
We determined that the tandem SH2 domain of S. cerevisiae Spt6 binds the linker region of the RNA polymerase II subunit Rpb1 rather than the expected sites in its heptad repeat domain. The 4 nM binding affinity requires phosphorylation at Rpb1 S1493 and either T1471 or Y1473. Crystal structures showed that pT1471 binds the canonical SH2 pY site while pS1493 binds an unanticipated pocket 70 Å distant. Remarkably, the pT1471 phosphate occupies the phosphate-binding site of a canonical pY complex, while Y1473 occupies the position of a canonical pY side chain, with the combination of pT and Y mimicking a pY moiety...
August 16, 2017: ELife
Xiangdong Ding, Oktay Aktas, Xiaofei Wang, Suzhi Li, Ziyuan Zhao, Libo Zhang, Xiaomei He, Turab Lookman, Avadh Saxena, Jun Sun
In this review, we show that the evolution of the microstructure and kinetics of ferroelastic crystals under external shear can be explored by computer simulations of 2D model materials. We find that the nucleation and propagation of twin boundaries in ferroelastics depend sensitively on temperature. In the plastic regime, the evolution of the ferroelastic microstructure under strain deformation maintains a stick-and-slip mechanism in all temperature regimes, whereas the dynamic behavior changes dramatically from power-law statistics at low temperature to a Kohlrausch law at intermediate temperature, and then to a Vogel-Fulcher law at high temperature...
October 4, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
E Hughes, N Wynne, S Quinn, T Fulcher
A 58-year-old woman presented to the emergency department with left ptosis and complete ophthalmoplegia. Imaging demonstrated a left orbital abscess. Her past medical history included cavitatory lung disease and "aseptic" meningitis 2 months previously. An anaerobic organism and commensal of the oral flora, Peptostreptococcus sp., was cultured from the orbital abscess. The patient was found to have a carious upper molar with chronic buccal abscess, which was extracted. This case presents an uncommon pathogen arising from an odontogenic infection as the etiology for orbital abscess, cavitatory lung disease, and meningitis in one patient...
August 16, 2017: Orbit
Matthew Velinder, Jason Singer, Diana Bareyan, Jessica Meznarich, Christopher M Tracy, James M Fulcher, David McClellan, Helena Lucente, Sarah Franklin, Sunil Sharma, Michael E Engel
No abstract text is available yet for this article.
August 11, 2017: Biochemical Journal
Thomas Jenkinson, Peter Crowther, Francesco Turci, C Patrick Royall
Ageing phenomena are investigated from a structural perspective in two binary Lennard-Jones glassformers, the Kob-Andersen and Wahnström mixtures. In both, the geometric motif assumed by the glassformer upon supercooling, the locally favoured structure (LFS), has been established. The Kob-Andersen mixture forms bicapped square antiprisms; the Wahnström model forms icosahedra. Upon ageing, we find that the structural relaxation time has a time-dependence consistent with a power law. However, the LFS population and potential energy increase and decrease, respectively, in a logarithmic fashion...
August 7, 2017: Journal of Chemical Physics
Frida Román, Pere Colomer, Yolanda Calventus, John M Hutchinson
Multiarm star polymers, denoted PEIx-PLAy and containing a hyperbranched poly(ethyleneimine) (PEI) core of different molecular weights x and poly(lactide) (PLA) arms with y ratio of lactide repeat units to N links were used in this work. Samples were preconditioned to remove the moisture content and then characterized by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and dielectric relaxation spectroscopy (DRS). The glass transition temperature, Tg, is between 48 and 50 °C for all the PEIx-PLAy samples...
February 4, 2017: Materials
Prativa Pramanik, Subhash Thota, Sobhit Singh, Deep Chandra Joshi, Bruno Weise, Anja Waske, M S Seehra
Reported here are the results and their analysis from our detailed investigations of the effects of Cu doping ([Formula: see text]) on the electronic structure and magnetic properties of the spinel [Formula: see text]O4. A detailed comparison is given for the [Formula: see text] and [Formula: see text] cases for both the bulk-like samples and nanoparticles. The electronic structure determined from x-ray photoelectron spectroscopy and Rietveld analysis of x-ray diffraction patterns shows the structure to be: ([Formula: see text])A [Formula: see text] [Formula: see text] [Formula: see text]]B [Formula: see text] i...
August 2, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
D Kumar, A Banerjee, A Mahmoud, Chandana Rath
In this report, we have examined the evolution of the structure and rich magnetic transitions such as a paramagnetic to ferrimagnetic phase transition at the Curie temperature (TC), spiral ordering temperature (TS) and lock-in temperature (TL) observed in the CoCr2O4 spinel multiferroic after substituting Fe. The crystal structure, microstructure and cation distribution among the tetrahedral (A) and octahedral (B) sites in the spinel lattice are characterised by X-ray diffraction, transmission electron microscopy, Extended X-ray Absorption Fine Structure (EXAFS) and Mössbauer spectroscopy...
July 24, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
N Shankaraiah
We use protein folding energy landscape concepts such as golf course and funnel to study re-equilibration in athermal martensites under systematic temperature quench Monte Carlo simulations. On quenching below a transition temperature, the seeded high-symmetry parent-phase austenite that converts to the low-symmetry product-phase martensite, through autocatalytic twinning or elastic photocopying, has both rapid conversions and incubation delays in the temperature-time-transformation phase diagram. We find the rapid (incubation delays) conversions at low (high) temperatures arises from the presence of large (small) size of golf-course edge that has the funnel inside for negative energy states...
June 2017: Physical Review. E
Ksenia Timachova, Mahati Chintapalli, Kevin R Olson, Sue J Mecham, Joseph M DeSimone, Nitash P Balsara
Perfluoropolyethers (PFPEs) are polymer electrolytes with fluorinated carbon backbones that have high flash points and have been shown to exhibit moderate conductivities and high cation transference numbers when mixed with lithium salts. Ion transport in four PFPE electrolytes with different endgroups was characterized by differential scanning calorimetry (DSC), ac impedance, and pulsed-field gradient NMR (PFG-NMR) as a function of salt concentration and temperature. In spite of the chemical similarity of the electrolytes, salt diffusion coefficients measured by PFG-NMR and the glass transition temperature measured by DSC appear to be uncorrelated to ionic conductivity measured by ac impedance...
August 16, 2017: Soft Matter
Jennifer A Fulcher, Georgios Koukos, Marina Koutsioumpa, Julie Elliott, Alexandra Drakaki, Dimitrios Iliopoulos, Peter A Anton
OBJECTIVE: Chronic HIV-1 infection leads to widespread inflammation and immune dysregulation. The gastrointestinal mucosa, a primary site for HIV-1 replication, is thought to play a significant role in this response. MicroRNAs (miRs) are small noncoding RNAs that regulate gene expression, including immune activation and inflammation. Here we investigate miR expression and function in the colonic mucosa during HIV-1 infection. DESIGN AND METHODS: Using miR profiling, we examined miR expression in the colonic mucosa of HIV-infected patients...
September 10, 2017: AIDS
Edward Zimbudzi, Clement Lo, Sanjeeva Ranasinha, Peter G Kerr, Kevan R Polkinghorne, Helena Teede, Timothy Usherwood, Rowan G Walker, Greg Johnson, Greg Fulcher, Sophia Zoungas
OBJECTIVE: This study aimed to examine the association between performance of self-care activities and patient or disease factors as well as patient activation levels in patients with diabetes and chronic kidney disease (CKD) in Australia. METHODS: A cross-sectional study was conducted among adults with diabetes and CKD (eGFR <60 mL/min/1.73m(2) ) who were recruited from renal and diabetes clinics of four tertiary hospitals in Australia. Demographic and clinical data were collected, as well as responses to the Patient Activation Measure (PAM) and the Summary of Diabetes Self-Care Activities (SDSCA) scale...
July 4, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
Valentina Nigro, Roberta Angelini, Monica Bertoldo, Fabio Bruni, Maria Antonietta Ricci, Barbara Ruzicka
Microgel suspensions of an interpenetrated Polymer Network (IPN) of PNIPAM and PAAc in D2O have been investigated through dynamic light scattering as a function of temperature, pH and concentration across the Volume Phase Transition (VPT). The dynamics of the system is slowed down under H/D isotopic substitution due to different balance states between polymer/polymer and polymer/solvent interactions suggesting the crucial role played by H-bonding. The swelling behavior, reduced with respect to PNIPAM and water, has been described by the Flory-Rehner theory, tested for PNIPAM microgel and successfully expanded to higher order for IPN microgels...
August 2, 2017: Soft Matter
Enis Tuncer
High temperature polymeric materials for electrical insulation and energy storage are needed for transformational power applications such as pulsed-power and hybrid electrical vehicles. One of the candidate materials has been polyetherimide, an amorphous thermoplastic with a glass transition over 200 (°)C. Here, the dielectric studies on the material are reported by taking into account the polarization and conduction processes in the polyetherimide. The dielectric data were analyzed with the distribution of relaxation times approach with Debye expression as the kernel in the inversion algorithm, the results then created the relaxation map for polyetherimide...
June 2017: European Physical Journal. E, Soft Matter
Matthias Hilder, Matthieu Gras, Cameron R Pope, Mega Kar, Douglas R MacFarlane, Maria Forsyth, Luke A O'Dell
The physicochemical properties of the ionic liquid N-ethyl-2-(2-methoxyethoxy)-N,N-bis(2-(2-methoxyethoxy)ethyl)ethan-1-ammonium bis(trifluoromethylsulfonyl)imide (N2(2O2O1)3TFSI) as well as its solutions with sodium bis(trifluoromethylsulfonyl)imide (NaTFSI) and sodium bis(fluorosulfonyl)imide (NaFSI) are compared in order to study the effects of the anion. The NaFSI solutions show weaker interactions as suggested by lower glass transition temperatures, lower densities, lower viscosities and higher conductivities as compared to their more strongly coordinating NaTFSI analogues...
June 26, 2017: Physical Chemistry Chemical Physics: PCCP
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