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https://www.readbyqxmd.com/read/27910647/a-technique-for-measuring-the-quality-of-an-elliptically-bent-pentaerythritol-pet-002-crystal
#1
M J Haugh, K D Jacoby, M A Barrios, D Thorn, J A Emig, M B Schneider
We present a technique for determining the X-ray spectral quality from each region of an elliptically curved PET(002) crystal. The investigative technique utilizes the shape of the crystal rocking curve which changes significantly as the radius of curvature changes. This unique quality information enables the spectroscopist to verify where in the spectral range that the spectrometer performance is satisfactory and where there are regions that would show spectral distortion. A collection of rocking curve measurements for elliptically curved PET(002) has been built up in our X-ray laboratory...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910078/cor-triatriatum-and-a-rare-form-of-partial-anomalous-pulmonary-venous-drainage
#2
Monika Kaldararova, Marek Kardos, Peter Tittel, Jozef Masura
No abstract text is available yet for this article.
2016: Kardiologia Polska
https://www.readbyqxmd.com/read/27909773/magnetic-resonance-imaging-of-fetal-pelvic-cysts
#3
REVIEW
Styliani Archontaki, Yvan Vial, Sylviane Hanquinet, Reto Meuli, Leonor Alamo
The detection of fetal anomalies has improved in the last years as a result of the generalization of ultrasound pregnancy screening exams. The presence of a cystic imaging in the fetal pelvis is a relatively common finding, which can correspond to a real congenital cystic lesion or result from the anomalous liquid accumulation in a whole pelvic organ, mainly the urinary bladder, the uterus, or the vagina. In selected cases with poor prognosis and/or inconclusive echographic findings, magnetic resonance may bring additional information in terms of the characterization, anatomical location, and real extension of the pathology...
December 1, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27908963/anomalous-mesenteric-vessel-a-rare-etiology-of-intermittent-partial-small-bowel-obstruction
#4
Natasha Hansraj, Shannon M Larabee, Kimberly M Lumpkins
We report a case of an 11-year with recurrent episodes of abdominal pain and vomiting. Diagnostic laparoscopy during a severe episode demonstrated an anomalous blood vessel incompletely encircling the bowel, leading to transient partial small bowel obstruction. This likely represents a remnant vessel from the omphalomesenteric duct. Recurrent abdominal pain and vomiting in the pediatric population requires careful history and physical exam, and a willingness to entertain unusual diagnoses.
December 1, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27908098/communication-stiffening-of-dilute-alcohol-and-alkane-mixtures-with-water
#5
Henry S Ashbaugh, J Wesley Barnett, Alexander Saltzman, Mae E Langrehr, Hayden Houser
We probe the anomalous compressibilities of dilute mixtures of alcohols and alkane gases in water using molecular simulations. The response to increasing solute concentration depends sensitively on temperature, with the compressibility decreasing upon solute addition at low temperatures and increasing at elevated temperatures. The thermodynamic origin of stiffening is directly tied to the solute's partial compressibility, which is negative at low temperatures and rises above water's compressibility with increasing temperature...
November 28, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27908060/individual-differences-in-the-perception-of-regional-nonnative-and-disordered-speech-varieties
#6
Tessa Bent, Melissa Baese-Berk, Stephanie A Borrie, Megan McKee
Speech perception abilities vary substantially across listeners, particularly in adverse conditions including those stemming from environmental degradation (e.g., noise) or from talker-related challenges (e.g., nonnative or disordered speech). This study examined adult listeners' recognition of words in phrases produced by six talkers representing three speech varieties: a nonnative accent (Spanish-accented English), a regional dialect (Irish English), and a disordered variety (ataxic dysarthria). Semantically anomalous phrases from these talkers were presented in a transcription task and intelligibility scores, percent words correct, were compared across the three speech varieties...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27907931/-koronararterienanomalien-diagnostik-und-klassifikation-auf-basis-der-ct-und-mrt-des-herzens-von-alcapa-bis-terminationsanomaliecoronary-artery-anomalies-diagnosis-and-classification-based-on-cardiac-ct-and-mri-cmr-from-alcapa-to-anomalies-of-termination
#7
Philipp Heermann, Walter Heindel, Christoph Schülke
Background Coronary artery anomalies encompass a clinically and anatomically variable spectrum including physiological variants and pathophysiologically relevant anomalies. The majority of the variants has no hemodynamic relevance and is often detected accidentally. The recognition of the rare and relevant anomalies that cause either relevant shunt volumes leading to myocardial ischemia or ventricular tachyarrhythmias with the risk of sudden cardiac death is of major importance. Methods This review is based on a literature search in PubMed conducted using the key words "coronary artery" and/or "anomaly" and/or "anomalous origin" and/or "myocardial bridging" and/or "coronary artery fistula" and/or "Bland-White-Garland" and/or "ALCAPA"...
December 1, 2016: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/27907112/role-of-heterogeneous-macromolecular-crowding-and-geometrical-irregularity-at-central-excitatory-synapses-in-shaping-synaptic-transmission
#8
Rahul Gupta, Melissa Reneaux, Karmeshu
Besides the geometrical tortousity due to the extrasynaptic structures, macromolecular crowding and geometrical irregularities constituting the cleft composition at central excitatory synapses has a major and direct role in retarding the glutamate diffusion within the cleft space. However, the cleft composition may not only coarsely reduce the overall diffusivity of the glutamate but may also lead to substantial spatial variation in the diffusivity across the cleft space. Decrease in the overall diffusivity of the glutamate may have straightforward consequences to the glutamate transients in the cleft...
2016: PloS One
https://www.readbyqxmd.com/read/27906925/anomalous-systemic-arterial-supply-to-the-lung
#9
Jumpei Katayama
No abstract text is available yet for this article.
December 2, 2016: New Zealand Medical Journal
https://www.readbyqxmd.com/read/27906352/tunable-pancharatnam-berry-metasurface-for-dynamical-and-high-efficiency-anomalous-reflection
#10
He-Xiu Xu, Guang-Ming Wang, Tong Cai, Jun Xiao, Ya-Qiang Zhuang
Pancharatnam-Berry (PB) metasurfaces have intrigued a great deal of interest in recent years for anomalous reflection/refraction, vortex plate, orbital angular momentum, flat lens, photonic spin hall effect (PSHE), holograms and reflect/transmit arrays. However, almost all designs are restricted to fixed electrical performance/functionality once the design is finished. Here, we report for the first time a strategy for PB metasurface with agile working frequency by involving each meta-atom with tunable PIN diodes...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906317/theoretical-modeling-and-experimental-demonstration-of-raman-probe-induced-spectral-dip-for-realizing-a-superluminal-laser
#11
Joshua Yablon, Zifan Zhou, Minchuan Zhou, Ye Wang, S Tseng, M S Shahriar
We have demonstrated experimentally a Diode-Pumped Alkali Laser (DPAL) with a Raman resonance induced dip in the center of the gain profile, in order to produce an anomalous dispersion, necessary for making the laser superluminal. Numerical calculations match closely with experimental results, and indicate that the laser is operating superluminally, with the group index far below unity (~0.00526) at the center of the dip. The estimated factor of enhancement in the sensitivity to cavity length perturbation is ~190, approximately equaling the inverse of the group index...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27905504/anomalous-light-scattering-by-topological-pt-symmetric-particle-arrays
#12
C W Ling, Ka Hei Choi, T C Mok, Zhao-Qing Zhang, Kin Hung Fung
Robust topological edge modes may evolve into complex-frequency modes when a physical system becomes non-Hermitian. We show that, while having negligible forward optical extinction cross section, a conjugate pair of such complex topological edge modes in a non-Hermitian -symmetric system can give rise to an anomalous sideway scattering when they are simultaneously excited by a plane wave. We propose a realization of such scattering state in a linear array of subwavelength resonators coated with gain media. The prediction is based on an analytical two-band model and verified by rigorous numerical simulation using multiple-multipole scattering theory...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27901211/how-to-tell-a-happy-from-an-unhappy-schizotype-personality-factors-and-mental-health-outcomes-in-individuals-with-psychotic-experiences
#13
Letícia O Alminhana, Miguel Farias, Gordon Claridge, Claude R Cloninger, Alexander Moreira-Almeida
Objective: It is unclear why some individuals reporting psychotic experiences have balanced lives while others go on to develop mental health problems. The objective of this study was to test if the personality traits of harm avoidance, self-directedness, and self-transcendence can be used as criteria to differentiate healthy from unhealthy schizotypal individuals. Methods: We interviewed 115 participants who reported a high frequency of psychotic experiences. The instruments used were the Temperament and Character Inventory (140), Structured Clinical Interview for DSM-IV, and the Oxford-Liverpool Inventory of Feelings and Experiences...
November 24, 2016: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/27901088/tunable-microwave-metasurfaces-for-high-performance-operations-dispersion-compensation-and-dynamical-switch
#14
He-Xiu Xu, Shiwei Tang, Shaojie Ma, Weijie Luo, Tong Cai, Shulin Sun, Qiong He, Lei Zhou
Controlling the phase distributions on metasurfaces leads to fascinating effects such as anomalous light refraction/reflection, flat-lens focusing, and optics-vortex generation. However, metasurfaces realized so far largely reply on passive resonant meta-atoms, whose intrinsic dispersions limit such passive meta-devices' performances at frequencies other than the target one. Here, based on tunable meta-atoms with varactor diodes involved, we establish a scheme to resolve these issues for microwave metasurfaces, in which the dispersive response of each meta-atom is precisely controlled by an external voltage imparted on the diode...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900420/nmr-based-metabolomic-approach-to-study-urine-samples-of-chronic-inflammatory-rheumatic-disease-patients
#15
Alessia Vignoli, Donatella Maria Rodio, Anna Bellizzi, Anatoly Petrovich Sobolev, Elena Anzivino, Monica Mischitelli, Leonardo Tenori, Federico Marini, Roberta Priori, Rossana Scrivo, Guido Valesini, Ada Francia, Manuela Morreale, Maria Rosa Ciardi, Marco Iannetta, Cristiana Campanella, Donatella Capitani, Claudio Luchinat, Valeria Pietropaolo, Luisa Mannina
The nuclear magnetic resonance (NMR)-based metabolomic approach was used as analytical methodology to study the urine samples of chronic inflammatory rheumatic disease (CIRD) patients. The urine samples of CIRD patients were compared to the ones of both healthy subjects and patients with multiple sclerosis (MS), another immuno-mediated disease. Urine samples collected from 39 CIRD patients, 25 healthy subjects, and 26 MS patients were analyzed using (1)H NMR spectroscopy, and the NMR spectra were examined using partial least squares-discriminant analysis (PLS-DA)...
November 30, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27899890/causal-role-of-thalamic-interneurons-in-brain-state-transitions-a-study-using-a-neural-mass-model-implementing-synaptic-kinetics
#16
Basabdatta Sen Bhattacharya, Thomas P Bond, Louise O'Hare, Daniel Turner, Simon J Durrant
Experimental studies on the Lateral Geniculate Nucleus (LGN) of mammals and rodents show that the inhibitory interneurons (IN) receive around 47.1% of their afferents from the retinal spiking neurons, and constitute around 20-25% of the LGN cell population. However, there is a definite gap in knowledge about the role and impact of IN on thalamocortical dynamics in both experimental and model-based research. We use a neural mass computational model of the LGN with three neural populations viz. IN, thalamocortical relay (TCR), thalamic reticular nucleus (TRN), to study the causality of IN on LGN oscillations and state-transitions...
2016: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/27899865/necrotizing-pneumonia-caused-by-h1n1-virus-in-a-child-with-total-anomalous-pulmonary-venous-connection-after-cardiac-surgery
#17
Mehmet G Ramoğlu, Tayfun Uçar, Tanıl Kendirli, Zeynep Eyileten, Semra Atalay
Total anomalous pulmonary venous connection is a rare form of congenital heart disease, occurring in only 1.5% of children with congenital heart disease. Although the mortality and morbidity of total anomalous pulmonary venous connection have decreased dramatically due to improvements in surgery, postoperative pulmonary venous obstruction is still a cause of late mortality in patients with corrected total anomalous pulmonary venous connection. Influenza A H1N1, the most common cause of human influenza in 2009, may cause pneumonia presenting with increased disease severity...
November 2016: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/27898954/proposal-of-a-production-and-management-index-pmi-for-tilapia-farms
#18
A Muniesa, A L Rey-Castaño, I Ruiz-Zarzuela, M Guarín, C Iregui, I de Blas
Tilapia is one of the most important species in aquaculture; however, there is no available index to show the performance of a production unit. It is desirable to assess the productivity using indexes, such as the production and management index for shrimps and the European production efficacy factor for broilers. These indexes are based on data production: growth, survival, and feed conversion of a full production cycle. Taking into account these parameters, we propose a production and management index (PMI) for tilapia that is applicable for a specific period of the production cycle...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898351/a-case-report-of-small-bowel-obstruction-secondary-to-congenital-peritoneal-band-in-adult
#19
Yahmadi Abdelwahed, Rebii Saber, Ben Ismail Imen, Zenaidi Hakim, Zoghlami Ayoub
INTRODUCTION: Small bowel obstruction (SBO) is common in adult surgical procedures, mainly due to postoperative adhesions. Acute SBO in adults without history of abdominal surgery, trauma or clinical hernia is less common and has various etiologies. Congenital band is an extremely rare cause. PRESENTATION OF CASE: A 56-year-old man was admitted to our hospital with a two-day history of abdominal pain and bilious vomiting. He had no history of abdominal surgery or any other medical problems...
November 18, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27897189/a-design-principle-of-polymers-processable-into-2d-homeotropic-order
#20
Zhen Chen, Yi-Tsu Chan, Daigo Miyajima, Takashi Kajitani, Atsuko Kosaka, Takanori Fukushima, Jose M Lobez, Takuzo Aida
How to orient polymers homeotropically in thin films has been a long-standing issue in polymer science because polymers intrinsically prefer to lie down. Here we provide a design principle for polymers that are processable into a 2D homeotropic order. The key to this achievement was a recognition that cylindrical polymers can be designed to possess oppositely directed local dipoles in their cross-section, which possibly force polymers to tightly connect bilaterally, affording a 2D rectangular assembly. With a physical assistance of the surface grooves on Teflon sheets that sandwich polymer samples, homeotropic ordering is likely nucleated and gradually propagates upon hot-pressing towards the interior of the film...
November 29, 2016: Nature Communications
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