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https://www.readbyqxmd.com/read/29149725/a-method-for-the-design-of-ultrasonic-devices-for-scanning-acoustic-microscopy-using-impulsive-signals
#1
Mototaka Arakawa, Hiroshi Kanai, Kazuo Ishikawa, Ryo Nagaoka, Kazuto Kobayashi, Yoshifumi Saijo
Scanning acoustic microscopy (SAM) using impulsive signals is useful for characterization of biological tissues and cells. The operating center frequency of an ultrasonic device strongly depends on the performance characteristics of the device if the measurement is conducted by using impulsive signals. In this paper, a method for the design of ultrasonic devices for SAM using impulsive signals was developed. A new plane-wave model was introduced to calculate frequency characteristics of loss of ultrasonic devices by taking into account the conversion loss at the ultrasonic transducer, the transmission loss at the acoustic anti-reflection coating, and the propagation loss in the couplant...
November 2, 2017: Ultrasonics
https://www.readbyqxmd.com/read/29149325/the-iuphar-bps-guide-to-pharmacology-in-2018-updates-and-expansion-to-encompass-the-new-guide-to-immunopharmacology
#2
Simon D Harding, Joanna L Sharman, Elena Faccenda, Chris Southan, Adam J Pawson, Sam Ireland, Alasdair J G Gray, Liam Bruce, Stephen P H Alexander, Stephen Anderton, Clare Bryant, Anthony P Davenport, Christian Doerig, Doriano Fabbro, Francesca Levi-Schaffer, Michael Spedding, Jamie A Davies
The IUPHAR/BPS Guide to PHARMACOLOGY (GtoPdb, www.guidetopharmacology.org) and its precursor IUPHAR-DB, have captured expert-curated interactions between targets and ligands from selected papers in pharmacology and drug discovery since 2003. This resource continues to be developed in conjunction with the International Union of Basic and Clinical Pharmacology (IUPHAR) and the British Pharmacological Society (BPS). As previously described, our unique model of content selection and quality control is based on 96 target-class subcommittees comprising 512 scientists collaborating with in-house curators...
November 15, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29148835/2017-white-paper-on-recent-issues-in-bioanalysis-aren-t-bmv-guidance-guidelines-scientific-part-1-lcms-small-molecules-peptides-and-small-molecule-biomarkers
#3
Jan Welink, Eric Yang, Nicola Hughes, Brian Rago, Eric Woolf, Jens Sydor, Laura Coppola, Brad Ackermann, Wenkui Li, Stephen C Alley, Mark Arnold, Isabella Berger, Chad Briscoe, Michael Buonarati, Mark Bustard, Mark Cancilla, Seongeun Julia Cho, Jeff Duggan, Daniela Fraier, Fabio Garofolo, Rachel Green, Sam Haidar, Lucinda Hittle, Akiko Ishii-Watabe, Rafiq Islam, Rand Jenkins, Barry Jones, John Kadavil, Sean Kassim, Olga Kavetska, Olivier Le Blaye, Anita Lee, Hanlan Liu, John Mehl, Gustavo Mendes Lima Santos, Adrien Musuku, Ragu Ramanathan, Yoshiro Saito, Natasha Savoie, Scott Summerfield, Sekhar Surapaneni, Matthew Szapacs, Nilufer Tampal, Tom Verhaeghe, Stephen Vinter, Emma Whale
The 2017 11th Workshop on Recent Issues in Bioanalysis (11th WRIB) took place in Los Angeles/Universal City, California from 3 April 2017 to 7 April 2017 with participation of close to 750 professionals from pharmaceutical/biopharmaceutical companies, biotechnology companies, contract research organizations and regulatory agencies worldwide. WRIB was once again a 5-day, weeklong event - A Full Immersion Week of Bioanalysis, Biomarkers and Immunogenicity. As usual, it was specifically designed to facilitate sharing, reviewing, discussing and agreeing on approaches to address the most current issues of interest including both small and large molecule analysis involving LCMS, hybrid LBA/LCMS and ligand-binding assay (LBA) approaches...
November 17, 2017: Bioanalysis
https://www.readbyqxmd.com/read/29148746/keto-enol-tautomerization-triggers-an-electrophilic-aldehyde-deformylation-reaction-by-a-nonheme-manganese-iii-peroxo-complex
#4
Fabián G Cantú Reinhard, Prasenjit Barman, Gourab Mukherjee, Jitendra Kumar, Deep Kumar, Devesh Kumar, Chivukula V Sastri, Sam P de Visser
Oxygen atom transfer by high-valent enzymatic intermediates remains an enigma in chemical catalysis. In particular, manganese is an important first-row metal involved in key biochemical processes including the biosynthesis of mo-lecular oxygen (through the photosystem II complex) and biodegradation of toxic superoxide to hydrogen peroxide by superoxide dismutase. Biomimetic models of these biological systems have been developed to gain understanding on the structure and properties of short-lived intermediates but also with the aim to create environmentally benign oxidants...
November 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29148085/built-to-bite-differences-in-cranial-morphology-and-bite-performance-between-narrow-and-broad-headed-european-glass-eels
#5
Jens De Meyer, Sam Van Wassenbergh, Mathias Bouilliart, Jelle Dhaene, Dominique Adriaens
The presence of two phenotypes in a single species is a widespread phenomenon, also observed in European eel (Anguilla anguilla). This dimorphism has been related to dietary differences in the subadult elver and yellow eel stages, with broad-heads generally feeding on harder and/or larger-bodied prey items than narrow-heads. Nevertheless, both broad- and narrow-headed phenotypes can already be found among glass eels, the stage preceding the elver eel stage. As these glass eels are considered nonfeeding, we investigate here to what degree the observed variation in head width is reflected in variation in the musculoskeletal feeding system, as well as whether this reflects the same variation observed in the older, dimorphic yellow eels...
November 17, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29147852/enhanced-peptide-detection-toward-single-neuron-proteomics-by-reversed-phase-fractionation-capillary-electrophoresis-mass-spectrometry
#6
Sam B Choi, Camille Lombard-Banek, Pablo Muñoz-LLancao, M Chiara Manzini, Peter Nemes
The ability to detect peptides and proteins in single cells is vital for understanding cell heterogeneity in the nervous system. Capillary electrophoresis (CE) nanoelectrospray ionization (nanoESI) provides high-resolution mass spectrometry (HRMS) with trace-level sensitivity, but compressed separation during CE challenges protein identification by tandem HRMS with limited MS/MS duty cycle. Here, we supplemented ultrasensitive CE-nanoESI-HRMS with reversed-phase (RP) fractionation to enhance identifications from protein digest amounts that approximate to a few mammalian neurons...
November 16, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/29146728/source-estimation-of-epileptic-activity-using-eloreta-kurtosis-analysis
#7
Shunichiro Ikeda, Ryouhei Ishii, Leonides Canuet, Roberto D Pascual-Marqui
Exact low-resolution brain electromagnetic tomography (eLORETA) is a technique for three-dimensional representation of the distribution of sources of electrical activity in the brain. Kurtosis analysis allows for identification of spiky activity in the brain. To evaluate the reliability of eLORETA kurtosis analysis, the results of the analysis were compared with those of equivalent current dipole (ECD) and synthetic aperture magnetometry (SAM) kurtosis analysis of magnetoencephalography (MEG) data in a patient with epilepsy with elementary visual seizures in a 6-year follow-up...
November 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29146583/comparison-of-chip-seq-data-and-a-reference-motif-set-for-human-krab-c2h2-zinc-finger-proteins
#8
Marjan Barazandeh, Sam Lambert, Mihai Albu, Timothy R Hughes
KRAB C2H2 zinc finger proteins (KZNFs) are the largest and most diverse family of human transcription factors, likely due to diversifying selection driven by novel endogenous retroelements (EREs), but the vast majority lack binding motifs or functional data. Two recent studies analyzed a majority of the human KZNFs using either ChIP-seq (60 proteins) or ChIP-exo (221 proteins) in the same cell type (HEK293). The ChIP-exo paper did not describe binding motifs, however. Thirty-nine proteins are represented in both studies, enabling the systematic comparison of the data sets presented here...
November 16, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29145745/recruitment-of-underrepresented-minority-researchers-into-hiv-prevention-research-the-hiv-prevention-trials-network-hptn-scholars-program
#9
Sten H Vermund, Erica L Hamilton, Sam Griffith, Larissa Jennings, Typhanye V Dyer, Kenneth H Mayer, Darrell P Wheeler
Most US investigators in the HIV Prevention Trials Network (HPTN) have been of majority race/ethnicity and sexual orientation. Research participants, in contrast, have been disproportionately from racial/ethnic minorities and men who have sex with men (MSM), reflecting the US epidemic. We initiated and subsequently evaluated the HPTN Scholars Program that mentors early career investigators from underrepresented minority groups. Scholars were affiliated with the HPTN for 12-18 months, mentored by a senior researcher to analyze HPTN study data...
November 16, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29145579/progesterone-the-maternal-immune-system-and-the-onset-of-parturition-in-the-mouse
#10
Lydia F Edey, Hector Georgiou, Kieran P O'Dea, Sam Mesiano, Bronwen R Herbert, Kaiyu Lei, Renyi Hua, Danijela Markovic, Simon N Waddington, David MacIntyre, Philip Bennett, Masao Takata, Mark R Johnson
The role of progesterone (P4) in the regulation of the local (uterine) and systemic innate immune system, myometrial expression of connexin 43 (Cx-43) and cyclooxygenase 2 (COX-2) and the onset of parturition was examined in: 1) naïve mice delivering at term; 2) E16 mice treated with RU486 (P4-antagonist) to induce preterm parturition; and 3) in mice treated with P4 to prevent term parturition.In naïve mice, myometrial neutrophil and monocyte numbers peaked at E18 and declined with the onset of parturition...
November 14, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29145301/sinonasal-osteoblastomas-in-the-middle-turbinate-two-case-reports
#11
Jong Seung Kim, Sam Hyun Kwon
RATIONALE: Sinonasal osteoblastoma is an extremely rare benign bone-forming tumor. PATIENT CONCERNS: We report 2 extremely rare cases of sinonasal osteoblastoma in the middle turbinate. DIAGNOSES: The preoperative diagnosis was osteoma in the middle turbinate. INTERVENTIONS: We performed endoscopic removal of the mass in the middle turbinate and frontal recess. OUTCOMES: Histological examination of biopsy specimens revealed osteoblastoma...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145005/assessment-of-long-term-spatio-temporal-radiofrequency-electromagnetic-field-exposure
#12
Sam Aerts, Joe Wiart, Luc Martens, Wout Joseph
As both the environment and telecommunications networks are inherently dynamic, our exposure to environmental radiofrequency (RF) electromagnetic fields (EMF) at an arbitrary location is not at all constant in time. In this study, more than a year's worth of measurement data collected in a fixed low-cost exposimeter network distributed over an urban environment was analysed and used to build, for the first time, a full spatio-temporal surrogate model of outdoor exposure to downlink Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS) signals...
November 13, 2017: Environmental Research
https://www.readbyqxmd.com/read/29144943/re-propensity-score-analysis-of-radical-cystectomy-versus-bladder-sparing-trimodal-therapy-in-the-setting-of-a-multidisciplinary-bladder-cancer-clinic
#13
https://www.readbyqxmd.com/read/29144941/re-the-health-effects-of-electronic-cigarettes
#14
Sam S Chang
No abstract text is available yet for this article.
December 2017: Journal of Urology
https://www.readbyqxmd.com/read/29144940/re-orthotopic-neobladder-vs-ileal-conduit-urinary-diversion-a-long-term-quality-of-life-comparison
#15
Sam S Chang
No abstract text is available yet for this article.
December 2017: Journal of Urology
https://www.readbyqxmd.com/read/29144753/nonlinear-metasurface-for-simultaneous-control-of-spin-and-orbital-angular-momentum-in-second-harmonic-generation
#16
Guixin Li, Lin Wu, King Fai Li, Shumei Chen, Christian Schlickriede, Zhengji Xu, Siya Huang, Wen-Di Li, Yan Jun Liu, Edwin Yue-Bun Pun, Thomas Zentgraf, Kok Wai Cheah, Yu Luo, Shuang Zhang
The spin and orbital angular momentum (SAM and OAM) of light is providing a new gateway towards high capacity and robust optical communications. While the generation of light with angular momentum is well studied in linear optics, its further integration into nonlinear optical devices will open new avenues for increasing the capacity of optical communications through additional information channels at new frequencies. However, it has been challenging to manipulate the both SAM and OAM of nonlinear signals in harmonic generation processes with conventional nonlinear materials...
November 16, 2017: Nano Letters
https://www.readbyqxmd.com/read/29144239/the-unintended-consequences-of-marijuana-legalization
#17
EDITORIAL
George Sam Wang, Kennon Heard, Genie Roosevelt
No abstract text is available yet for this article.
November 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29143872/concomitant-hook-of-hamate-fractures-in-patients-with-scaphoid-fracture-more-common-than-you-might-think
#18
Ramin Mandegaran, Sam Gidwani, Ali Zavareh
OBJECTIVE: The scaphoid is the most commonly fractured carpal bone. The presence of a concomitant hook of hamate fracture is of particular relevance given that it is often occult on routine wrist/scaphoid radiographs and that hook of hamate fractures are prone to symptomatic non-union, resulting in chronic ulnar wrist pain. Prompt diagnosis and immobilisation/fixation may minimise such complications. Our study is aimed at assessing the frequency of concomitant hook of hamate fractures in patients with scaphoid fractures...
November 16, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29142629/a-prospective-study-with-cage-only-or-cage-with-plate-fixation-in-anterior-cervical-discectomy-and-interbody-fusion-of-one-and-two-levels
#19
Sam Yeol Kim, Seung Hwan Yoon, Dokeun Kim, Chang Hyun Oh, Seyang Oh
Objective: The authors prospectively analyzed the effect of one-level or two-level anterior cervical discectomy and fusion (ACDF), comparing stand-alone cages and cage-with-plate fixation constructs with respect to clinical outcomes and radiologic changes. Methods: A total of 84 patients who underwent one-level (n=52) or two-level ACDF (n=32) for cervical disc disease and who completed 2 years of follow-up were included in this study. The patients were divided by cervical level and grouped into ACDF-Cage-only and ACDF-Cage-with-plate groups...
November 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29142610/erratum-a-novel-t-9-22-11-translocation-involving-11q24-in-a-patient-with-chronic-myeloid-leukemia-a-case-report
#20
Jaehyeon Lee, Dal Sik Kim, Hye Soo Lee, Sam Im Choi, Yong Gon Cho
[This corrects the article DOI: 10.3892/ol.2017.5668.].
November 2017: Oncology Letters
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