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https://www.readbyqxmd.com/read/28098829/rapid-transfer-alignment-of-mems-sins-based-on-adaptive-incremental-kalman-filter
#1
Hairong Chu, Tingting Sun, Baiqiang Zhang, Hongwei Zhang, Yang Chen
In airborne MEMS SINS transfer alignment, the error of MEMS IMU is highly environment-dependent and the parameters of the system model are also uncertain, which may lead to large error and bad convergence of the Kalman filter. In order to solve this problem, an improved adaptive incremental Kalman filter (AIKF) algorithm is proposed. First, the model of SINS transfer alignment is defined based on the "Velocity and Attitude" matching method. Then the detailed algorithm progress of AIKF and its recurrence formulas are presented...
January 14, 2017: Sensors
https://www.readbyqxmd.com/read/28098321/the-shortest-th-th-distance-from-a-new-type-of-quadruple-bond
#2
Han-Shi Hu, Nikolas Kaltsoyannis
Compounds featuring unsupported metal-metal bonds between actinide elements remain highly sought after yet confined experimentally to inert gas matrix studies. Notwithstanding this paucity, actinide-actinide bonding has been the subject of extensive computational research. In this contribution, high level quantum chemical calculations at both the scalar and spin-orbit levels are used to probe the Th-Th bonding in a range of zero valent systems of general formula LThThL. Several of these compounds have very short Th-Th bonds arising from a new type of Th-Th quadruple bond with a previously unreported electronic configuration featuring two unpaired electrons in 6d-based δ bonding orbitals...
January 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28098294/co2-as-a-hydrogen-vector-transition-metal-diamine-catalysts-for-selective-hcooh-dehydrogenation
#3
Cornel Fink, Gábor Laurenczy
The homogeneous catalytic dehydrogenation of formic acid in aqueous solution provides an efficient in situ method for hydrogen production, under mild conditions, and at an adjustable rate. We synthesized a series of catalysts with the chemical formula [(Cp*)M(N-N')Cl] (M = Ir, Rh; Cp* = pentamethylcyclopentadienyl; N-N = bidentate chelating nitrogen donor ligands), which have been proven to be active in selective formic acid decomposition in aqueous media. The scope of the study was to examine the relationship between stability and activity of catalysts for formic acid dehydrogenation versus electronic and steric properties of selected ligands, following a bottom-up approach by increasing the complexity of the N,N'-ligands progressively...
January 18, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28098212/different-volumetric-measurement-methods-for-pituitary-adenomas-and-their-crucial-clinical-significance
#4
Chi-Cheng Chuang, Shinn-Yn Lin, Ping-Ching Pai, Jiun-Lin Yan, Cheng-Hong Toh, Shih-Tseng Lee, Kuo-Chen Wei, Zhuo-Hao Liu, Chung-Ming Chen, Yu-Chi Wang, Cheng-Chi Lee
Confirming the status of residual tumors is crucial. In stationary or spontaneous regression cases, early treatments are inappropriate. The long-used geometric calculation formula is 1/2 (length × width × height). However, it yields only rough estimates and is particularly unreliable for irregularly shaped masses. In our study, we attempted to propose a more accurate method. Between 2004 and 2014, 94 patients with pituitary tumors were enrolled in this retrospective study. All patients underwent transsphenoidal surgery and received magnetic resonance imaging (MRI)...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28097995/gestational-diabetes-your-survival-guide-to-diabetes-in-pregnancy-grant-paul-gestational-diabetes-your-survival-guide-to-diabetes-in-pregnancy-128pp-%C3%A2-9-99-sheldon-press-9781847094414-1847094414-formula-see-text
#5
(no author information available yet)
Gestational diabetes is one of the most common pregnancy complications, and this book is aimed at women who have developed the condition.
January 18, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28097991/nursing-an-exquisite-obsession-clark-june-nursing-an-exquisite-obsession-220pp-%C3%A2-12-99-quay-books-9781856425094-1856425096-formula-see-text
#6
(no author information available yet)
One of the publishing trends of recent years has been nursing memoirs. Heartwarming anecdotes of the nursing care provided for eccentric patients are generally combined with attacks on supposed developments in nurse education after about 1975, and the whole account is bathed in the light of a golden age that has passed. This memoir emphatically rejects such nostalgia.
January 18, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28097912/methanethiosulfonate-derivatives-as-ligands-of-the-stat3-sh2-domain
#7
Elena Gabriele, Chiara Ricci, Fiorella Meneghetti, Nicola Ferri, Akira Asai, Anna Sparatore
With the aim to discover new STAT3 direct inhibitors, potentially useful as anticancer agents, a set of methanethiosulfonate drug hybrids were synthesized. The in vitro tests showed that all the thiosulfonic compounds were able to strongly and selectively bind STAT3-SH2 domain, whereas the parent drugs were completely devoid of this ability. In addition, some of them showed a moderate antiproliferative activity on HCT-116 cancer cell line. These results suggest that methanethiosulfonate moiety can be considered a useful scaffold in the preparation of new direct STAT3 inhibitors...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28097479/structural-and-cooperative-length-scales-in-polymer-gels
#8
Baudouin Géraud, Loren Jørgensen, Christophe Ybert, Hélène Delanoë-Ayari, Catherine Barentin
Understanding the relationship between the material structural details, the geometrical confining constraints, the local dynamical events and the global rheological response is at the core of present investigations on complex fluid properties. In the present article, this problem is addressed on a model yield stress fluid made of highly entangled polymer gels of Carbopol which follows at the macroscopic scale the well-known Herschel-Bulkley rheological law. First, performing local rheology measurements up to high shear rates ([Formula: see text] s(-1))and under confinement, we evidence unambiguously the breakdown of bulk rheology associated with cooperative processes under flow...
January 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28097419/modelling-wolbachia-infection-in-a-sex-structured-mosquito-population-carrying-west-nile-virus
#9
József Z Farkas, Stephen A Gourley, Rongsong Liu, Abdul-Aziz Yakubu
Wolbachia is possibly the most studied reproductive parasite of arthropod species. It appears to be a promising candidate for biocontrol of some mosquito borne diseases. We begin by developing a sex-structured model for a Wolbachia infected mosquito population. Our model incorporates the key effects of Wolbachia infection including cytoplasmic incompatibility and male killing. We also allow the possibility of reduced reproductive output, incomplete maternal transmission, and different mortality rates for uninfected/infected male/female individuals...
January 17, 2017: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/28097214/location-and-lesion-dependent-estimation-of-mammographic-background-tissue-complexity
#10
Ali Avanaki, Kathryn Espig, Tom Kimpe
We specify a notion of perceived background tissue complexity (BTC) that varies with lesion shape, lesion size, and lesion location in the image. We propose four unsupervised BTC estimators based on: perceived pre and postlesion similarity of images, lesion border analysis (LBA; conspicuous lesion should be brighter than its surround), tissue anomaly detection, and local energy. The latter two are existing methods adapted for location- and lesion-dependent BTC estimation. For evaluation, we ask human observers to measure BTC (threshold visibility amplitude of a given lesion inserted) at specified locations in a mammogram...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28097213/fully-automated-quantitative-cephalometry-using-convolutional-neural-networks
#11
Sercan Ö Arık, Bulat Ibragimov, Lei Xing
Quantitative cephalometry plays an essential role in clinical diagnosis, treatment, and surgery. Development of fully automated techniques for these procedures is important to enable consistently accurate computerized analyses. We study the application of deep convolutional neural networks (CNNs) for fully automated quantitative cephalometry for the first time. The proposed framework utilizes CNNs for detection of landmarks that describe the anatomy of the depicted patient and yield quantitative estimation of pathologies in the jaws and skull base regions...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28097211/new-generation-small-animal-positron-emission-tomography-system-for-molecular-imaging
#12
Shiva Abbaszadeh, Craig S Levin
The next generation of discoveries in molecular imaging requires positron emission tomography (PET) systems with high spatial resolution and high sensitivity to visualize and quantify low concentrations of molecular probes. The goal of this work is to assemble and explore such a system. We use cadmium zinc telluride (CZT) to achieve high spatial resolution, three-dimensional interaction positioning, and excellent energy resolution. The CZT crystals are arranged in an edge-on configuration with a minimum gap of [Formula: see text] in a four-sided panel geometry to achieve superior photon sensitivity...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28097210/preclinical-positron-emission-tomography-scanner-based-on-a-monolithic-annulus-of-scintillator-initial-design-study
#13
Alexander V Stolin, Peter F Martone, Gangadhar Jaliparthi, Raymond R Raylman
Positron emission tomography (PET) scanners designed for imaging of small animals have transformed translational research by reducing the necessity to invasively monitor physiology and disease progression. Virtually all of these scanners are based on the use of pixelated detector modules arranged in rings. This design, while generally successful, has some limitations. Specifically, use of discrete detector modules to construct PET scanners reduces detection sensitivity and can introduce artifacts in reconstructed images, requiring the use of correction methods...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28097014/development-and-evaluation-of-a-formula-for-predicting-introduction-of-medication-self-management-in-stroke-patients-in-the-kaifukuki-rehabilitation-ward
#14
Hisato Fujihara, Mari Kogo, Isao Saito, Nobuyuki Kawate, Masazumi Mizuma, Hiroko Suzuki, Jun-Ichiro Murayama, Tadanori Sasaki
BACKGROUND: Medication self-management in stroke patients is important to prevent further progression of disease and incidence of side effects. The purpose of this study was to create a formula for predicting medication self-management introduction in stroke patients using functional independence measure items and patient data, including medication-related information. METHODS: This was a retrospective analysis of 104 patients (cerebral infarction, cerebral hemorrhage, subarachnoid hemorrhage) discharged from the Kaifukuki rehabilitation ward at Showa University Fujigaoka Rehabilitation Hospital from January to December 2012...
2017: Journal of Pharmaceutical Health Care and Sciences
https://www.readbyqxmd.com/read/28096400/defining-recovery-neurobiology-of-injured-spinal-cord-by-synthetic-matrix-assisted-hmsc-implantation
#15
Alexander E Ropper, Devang K Thakor, InBo Han, Dou Yu, Xiang Zeng, Jamie E Anderson, Zaid Aljuboori, Soo-Woo Kim, Hongjun Wang, Richard L Sidman, Ross D Zafonte, Yang D Teng
Mesenchymal stromal stem cells (MSCs) isolated from adult tissues offer tangible potential for regenerative medicine, given their feasibility for autologous transplantation. MSC research shows encouraging results in experimental stroke, amyotrophic lateral sclerosis, and neurotrauma models. However, further translational progress has been hampered by poor MSC graft survival, jeopardizing cellular and molecular bases for neural repair in vivo. We have devised an adult human bone marrow MSC (hMSC) delivery formula by investigating molecular events involving hMSCs incorporated in a uniquely designed poly(lactic-co-glycolic) acid scaffold, a clinically safe polymer, following inflammatory exposures in a dorsal root ganglion organotypic coculture system...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096330/spectroscopic-evidence-for-bulk-band-inversion-and-three-dimensional-massive-dirac-fermions-in-zrte5
#16
Zhi-Guo Chen, R Y Chen, R D Zhong, John Schneeloch, C Zhang, Y Huang, Fanming Qu, Rui Yu, Q Li, G D Gu, N L Wang
Three-dimensional topological insulators (3D TIs) represent states of quantum matters in which surface states are protected by time-reversal symmetry and an inversion occurs between bulk conduction and valence bands. However, the bulk-band inversion, which is intimately tied to the topologically nontrivial nature of 3D Tis, has rarely been investigated by experiments. Besides, 3D massive Dirac fermions with nearly linear band dispersions were seldom observed in TIs. Recently, a van der Waals crystal, ZrTe5, was theoretically predicted to be a TI...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096222/first-infant-formula-type-and-risk-of-islet-autoimmunity-in-the-environmental-determinants-of-diabetes-in-the-young-teddy-study
#17
Sandra Hummel, Andreas Beyerlein, Roy Tamura, Ulla Uusitalo, Carin Andrén Aronsson, Jimin Yang, Anne Riikonen, Åke Lernmark, Marian J Rewers, William A Hagopian, Jin-Xiong She, Olli G Simell, Jorma Toppari, Anette-G Ziegler, Beena Akolkar, Jeffrey P Krischer, Suvi M Virtanen, Jill M Norris
OBJECTIVE: Studies on the introduction of infant formulas and its effect on the risk of islet autoimmunity and type 1 diabetes (T1D) have yielded inconsistent results. We investigated whether the introduction of formula based on hydrolyzed cow's milk as the first formula is associated with reduced islet autoimmunity risk in a large prospective cohort. RESEARCH DESIGN AND METHODS: The Environmental Determinants of Diabetes in the Young (TEDDY) study prospectively monitors 8,676 children at increased genetic risk for T1D...
January 17, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28096167/chemical-fingerprint-of-dachaihu-granule-and-its-chemical-correlation-between-raw-herbs
#18
Chunqin Mao, Yaping Zhou, De Ji, Xuanzhong Tan, Yi Tao, Wenyi Zang, Tulin Lu
To develop a method to overall evaluate the quality of Dachaihu Granule (DCHG), high-performance liquid chromatography coupled with diode array detector was used to establish chemical fingerprint of DCHG. The correlation between the formula and its raw herbs was also evaluated. According to the retention time of standard components, chemical fingerprint of DCHG was developed and a total of 21 constituents were characterized. The separation was performed on a Kromasil C18 column (250 mm × 4.6 mm i.d. with 5...
January 17, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28096129/current-knowledge-of-necrotizing-enterocolitis-in-preterm-infants-and-the-impact-of-different-types-of-enteral-nutrition-products
#19
REVIEW
Jocelyn Shulhan, Bryan Dicken, Lisa Hartling, Bodil Mk Larsen
Preterm infants are extremely vulnerable to a range of morbidities and mortality. Underdeveloped cardiac, respiratory, gastrointestinal, and immune systems in the preterm period increase the risk of necrotizing enterocolitis (NEC), a serious disease of the gut. NEC affects 5-12% of very-low birth-weight infants, leads to surgery in 20-40% of cases, and is fatal in 25-50% of cases. There are multiple factors that may contribute to NEC, but the exact cause is not yet fully understood. Severe cases can result in intestinal resection or death, and the health care costs average >$300,000/infant when surgical management is required...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28095856/baff-index-and-cxcl13-levels-in-the-cerebrospinal-fluid-associate-respectively-with-intrathecal-igg-synthesis-and-cortical-atrophy-in-multiple-sclerosis-at-clinical-onset
#20
M Puthenparampil, L Federle, S Miante, A Zito, E Toffanin, S Ruggero, M Ermani, S Pravato, D Poggiali, P Perini, F Rinaldi, P Gallo
BACKGROUND: B lymphocytes are thought to play a relevant role in multiple sclerosis (MS) pathology. The in vivo analysis of intrathecally produced B cell-related cytokines may help to clarify the mechanisms of B cell recruitment and immunoglobulin production within the central nervous system (CNS) in MS. METHODS: Paired cerebrospinal fluid (CSF) and serum specimens from 40 clinically isolated syndrome suggestive of MS or early-onset relapsing-remitting MS patients (CIS/eRRMS) and 17 healthy controls (HC) were analyzed for the intrathecal synthesis of IgG (quantitative formulae and IgG oligoclonal bands, IgGOB), CXCL13, BAFF, and IL-21...
January 17, 2017: Journal of Neuroinflammation
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