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https://www.readbyqxmd.com/read/28343304/geometry-calibration-between-x-ray-source-and-detector-for-tomosynthesis-with-a-portable-x-ray-system
#1
Kohei Sato, Takashi Ohnishi, Masashi Sekine, Hideaki Haneishi
PURPOSE: Tomosynthesis is attracting attention as a low-dose tomography technology compared with X-ray CT. However, conventional tomosynthesis imaging devices are large and stationary. Furthermore, there is a limitation in the working range of the X-ray source during image acquisition. We have previously proposed the use of a portable X-ray device for tomosynthesis that can be used for ward rounds and emergency medicine. The weight of this device can be reduced by using a flat panel detector (FPD), and flexibility is realized by the free placement of the X-ray source and FPD...
March 25, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28343229/cytological-findings-of-ascitic-fluid-with-a-malignant-ovarian-steroid-cell-tumor-a-case-report-and-literature-review
#2
Nobuaki Kosaka, Kiyoshi Hasegawa, Kaori Kiuchi, Shoko Ochiai, Tamiko Nagai, Hiromi Machida, Yasuo Imai, Ichio Fukasawa
BACKGROUND: Ovarian steroid cell tumors (SCTs) are rare and usually benign, although 25-43% are reportedly malignant. The cytologic findings of these rare ovarian tumors have almost never been reported. CASE: We report a rare case of a malignant ovarian SCT with peritoneal dissemination and malignant ascites in a 40-year-old woman. Her tumor was classified as stage IIB (pT2bNoM0) according to the FIGO (International Federation of Gynecology and Obstetrics) classification system, and she was treated with adjuvant chemotherapy following staging laparotomy...
March 25, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28342572/exploring-the-atomic-structure-of-1-8nm-monolayer-protected-gold-clusters-with-aberration-corrected-stem
#3
Jian Liu, Nan Jian, Isabel Ornelas, Alexander J Pattison, Tanja Lahtinen, Kirsi Salorinne, Hannu Häkkinen, Richard E Palmer
Monolayer-protected (MP) Au clusters present attractive quantum systems with a range of potential applications e.g. in catalysis. Knowledge of the atomic structure is needed to obtain a full understanding of their intriguing physical and chemical properties. Here we employed aberration-corrected scanning transmission electron microscopy (ac-STEM), combined with multislice simulations, to make a round-robin investigation of the atomic structure of chemically synthesised clusters with nominal composition Au144(SCH2CH2Ph)60 provided by two different research groups...
November 22, 2016: Ultramicroscopy
https://www.readbyqxmd.com/read/28342477/effect-of-different-irrigation-systems-on-sealer-penetration-into-dentinal-tubules
#4
Luigi Generali, Francesco Cavani, Valentina Serena, Corinne Pettenati, Elena Righi, Carlo Bertoldi
INTRODUCTION: Different irrigation systems have been developed to improve the efficacy and distribution of the irrigants. The aim of this study was to compare the effect of conventional endodontic needle irrigation with other irrigant delivery and/or agitation systems on sealer penetration into dentinal tubules. METHODS: Fifty single-rooted teeth with round-shaped root canals were distributed in 5 homogeneous groups characterized by the different cleansing system used: conventional endodontic needle irrigation, EndoActivator, Irrisafe, Self-Adjusting File, and EndoVac...
April 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28340144/preventive-chemotherapy-in-one-year-reduces-by-over-80-the-number-of-individuals-with-soil-transmitted-helminthiases-causing-morbidity-results-from-meta-analysis
#5
Chiara Marocco, Mathieu Bangert, Serene A Joseph, Christopher Fitzpatrick, Antonio Montresor
The morbidity due to Ascaris lumbricoides and Trichuris trichiura is caused by infections of moderate and heavy intensity while hookworm infections of all intensities are recognized to cause morbidity.This study aims to evaluate the effect of repeated rounds of preventive chemotherapy on the proportion of soil-transmitted helminth (STH) infections causing morbidity. We identified studies from 17 countries, reporting changes in the proportion of STH infection causing morbidity between baseline and follow-up...
March 18, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28339966/operational-challenges-and-opportunities-in-pastured-poultry-operations-in-the-united-states
#6
C Elkhoraibi, M Pitesky, N Dailey, D Niemeier
As pastured poultry production has gained increased popularity in the United States in recent years, there is a growing need for research and outreach efforts aimed at this sector of poultry production. In order to get familiarized with American pastured poultry producers, we conducted an online questionnaire aimed primarily at evaluating what operational challenges are faced by producers and what educational opportunities should be initiated by researchers. Results showed that pastured poultry farms largely vary in total number of acres farmed and total number of birds kept...
March 3, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339608/inhibition-of-arachidonate-15-lipoxygenase-prevents-4-hydroxynonenal-induced-protein-damage-in-male-germ-cells%C3%A2
#7
Elizabeth G Bromfield, Bettina P Mihalas, Matthew D Dun, R John Aitken, Eileen A McLaughlin, Jessica L H Walters, Brett Nixon
Lipid peroxidation products, such as 4-hydroxynonenal (4HNE), are causative agents responsible for extensive protein damage within the male and female germlines. Recently, we have demonstrated that 4HNE production can initiate the proteolytic degradation of the molecular chaperone Heat Shock Protein A2 (HSPA2) in male germ cells. These events may be partially responsible for HSPA2 deficiency in the spermatozoa of patients that repeatedly fail in vitro fertilization. Given this, mechanisms that limit the production of 4HNE will be highly advantageous for the preservation of male fertility...
February 2, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339606/testicular-abnormalities-in-mice-with-y-chromosome-deficiencies%C3%A2
#8
Victor A Ruthig, Torbjoern Nielsen, Jonathan M Riel, Yasuhiro Yamauchi, Egle A Ortega, Quinci Salvador, Monika A Ward
We recently investigated mice with Y chromosome gene contribution limited to two, one, or no Y chromosome genes in respect to their ability to produce haploid round spermatids and live offspring following round spermatid injection. Here we explored the normalcy of germ cells and Sertoli cells within seminiferous tubules, and the interstitial tissue of the testis in these mice. We performed quantitative analysis of spermatogenesis and interstitial tissue on Periodic acid-Schiff and hematoxylin-stained mouse testis sections...
February 7, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339199/structure-based-discovery-of-new-antagonist-and-biased-agonist-chemotypes-for-the-kappa-opioid-receptor
#9
Zhong Zheng, Xi-Ping Huang, Thomas J Mangano, Rodger Zou, Xin Chen, Saheem Zaidi, Bryan L Roth, Raymond C Stevens, Vsevolod Katritch
The ongoing epidemics of opioid overdose raises an urgent need for effective anti-addiction therapies and addiction-free painkillers. The κ-opioid receptor (KOR) has emerged as a promising target for both indications, raising demand for new chemotypes of KOR antagonists, as well as G-protein-biased agonists. We employed the crystal structure of the KOR-JDTic complex and ligand-optimized structural templates to perform virtual screening of available compound libraries for new KOR ligands. The prospective virtual screening campaign yielded a high 32% hit rate, identifying novel fragment-like and lead-like chemotypes of KOR ligands...
March 24, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28338914/impact-of-decentralisation-of-antiretroviral-therapy-services-on-hiv-testing-and-care-at-a-population-level-in-agago-district-in-rural-northern-uganda-results-from-the-lablite-population-surveys
#10
George Abongomera, Sylvia Kiwuwa-Muyingo, Paul Revill, Levison Chiwaula, Travor Mabugu, Andrew N Phillips, Elly Katabira, Adrienne K Chan, Charles Gilks, Victor Musiime, James Hakim, Cissy Kityo, Robert Colebunders, Diana M Gibb, Janet Seeley, Deborah Ford
Background: We conducted unlinked cross-sectional population-based surveys in Northern Uganda before and after antiretroviral therapy (ART) provision (including Option B+ [lifelong ART for pregnant/breast-feeding women]) at a local primary care facility (Lira Kato Health Centre [HC]). Prior to decentralisation, people travelled 56-76 km round-trip for ART; we aimed to evaluate changes in uptake of HIV-testing, ART coverage and access to ART following decentralisation. Methods: A total of 2124 adults in 1351 households in two parishes closest to Lira Kato HC were interviewed using questionnaires between March and April 2013 and 2123 adults in 1229 households between January and March 2015...
March 10, 2017: International Health
https://www.readbyqxmd.com/read/28338580/textiloma-a-case-of-foreign-body-mimicking-a-spinal-tumor
#11
Ali Meshkini, Firooz Salehpour, Amir Rezakhah, Farhad Mirzaei, Mohammad KazemZadeh, Seyed Ahmad Naseri Alavi
STUDY DESIGN: Case report OBJECTIVE.: To report a case of foreign body mimicking spinal tumor Background: Textiloma, SUMMARY OF BACKGROUND DATA.: Gossypiboma or more broadly Retained Foreign Object (RFO) is a surgical complication resulting from foreign materials such as cotton or gauze pads, surgical sponge, accidentally left inside a patient's body. Such foreign materials cause foreign body reaction in the surrounding tissue. METHODS: A retrospective case report was performed...
March 23, 2017: Spine
https://www.readbyqxmd.com/read/28338527/a-slight-smell-of-lemon%C3%A2-a-case-report
#12
Catherine Feliu, Yoann Cazaubon, Aurélie Fouley, Hélène Guillemin, Claire Gozalo, Zoubir Djerada
We present here an example of urine substituted with a yellow cleaning product that leads us to develop the main risks to consider in urine toxicology analysis, i.e., adulteration and analytical interferences, and how to deal with them. This grand round highlights the importance of the dialogue between the clinician and a TDM consultant for optimal care of the patient.
March 23, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28337592/head-and-neck-round-cell-sarcomas-a-comparative-clinicopathologic-analysis-of-2-molecular-subsets-ewing-and-cic-rearranged-sarcomas
#13
Adepitan A Owosho, Cherry L Estilo, Joseph M Huryn, Lei Zhang, Christopher D M Fletcher, Cristina R Antonescu
CIC-rearranged sarcoma (CRS) is a relatively new entity defined by its pathognomonic genetic signature and undifferentiated round cell phenotype, initially grouped together with the 'Ewing sarcoma-like tumors'. However, increasing data suggest that these tumors should be regarded as a stand-alone pathologic entity. We conducted a clinicopathologic analysis on molecularly conformed Ewing sarcoma (ES) and CRS arising in the head and neck (HN) and compared to a well characterized cohort of ES and CRS from other locations...
March 23, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28337554/successive-relaxation-cycles-during-long-time-cell-aggregate-rounding-after-uni-axial-compression
#14
Ivana Pajic-Lijakovic, Milan Milivojevic
The mean features of cell surface rearrangement during cell aggregate rounding after uni-axial compression between parallel plates are considered. This is based on long-time rheological modeling approaches in order to shed further light on collective cell migration. Many aspects of cell migration at the supra-cellular level, such as the coordination between surrounding migrating cell groups that leads to uncorrelated motility, have remained unclear. Aggregate shape changes during rounding are considered depending on the size and homogeneity of 2-D and 3-D cell aggregates...
March 23, 2017: Journal of Biological Physics
https://www.readbyqxmd.com/read/28337081/a-comprehensive-list-of-items-to-be-included-on-a-pediatric-drug-monograph
#15
Lauren E Kelly, Shinya Ito, David Woods, Anthony J Nunn, Carol Taketomo, Matthijs de Hoog, Martin Offringa
OBJECTIVES: Children require special considerations for drug prescribing. Drug information summarized in a formulary containing drug monographs is essential for safe and effective prescribing. Currently, little is known about the information needs of those who prescribe and administer medicines to children. Our primary objective was to identify a list of important and relevant items to be included in a pediatric drug monograph. METHODS: Following the establishment of an expert steering committee and an environmental scan of adult and pediatric formulary monograph items, 46 participants from 25 countries were invited to complete a 2-round Delphi survey...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28337077/antithrombin-iii-doses-rounded-to-available-vial-sizes-in-critically-ill-pediatric-patients
#16
Winifred M Stockton, Eimeira Padilla-Tolentino, Carolyn E Ragsdale
OBJECTIVES: Children have decreased levels of antithrombin III (AT III) compared to adults. These levels may be further decreased during acute illness. Administration of exogenous AT III can increase anticoagulant efficacy. The objective of this study was to evaluate AT III doses rounded to available vial sizes compared to partial vial doses in critically ill pediatric patients, including patients receiving extracorporeal membrane oxygenation (ECMO) and continuous renal replacement therapy (CRRT)...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28336957/next-generation-sequencing-enables-the-discovery-of-more-diverse-positive-clones-from-a-phage-displayed-antibody-library
#17
Wonjun Yang, Aerin Yoon, Sanghoon Lee, Soohyun Kim, Jungwon Han, Junho Chung
Phage display technology provides a powerful tool to screen a library for a binding molecule via an enrichment process. It has been adopted as a critical technology in the development of therapeutic antibodies. However, a major drawback of phage display technology is that because the degree of the enrichment cannot be controlled during the bio-panning process, it frequently results in a limited number of clones. In this study, we applied next-generation sequencing (NGS) to screen clones from a library and determine whether a greater number of clones can be identified using NGS than using conventional methods...
March 24, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28336913/fission-fusion-dynamics-over-large-distances-in-raven-non-breeders
#18
Matthias-Claudio Loretto, Richard Schuster, Christian Itty, Pascal Marchand, Fulvio Genero, Thomas Bugnyar
The influence of fission-fusion dynamics, i.e., temporal variation in group size and composition, on social complexity has been studied in large-brained mammals that rely on social bonds. Little is known about birds, even though some species like ravens have recently received attention for their socio-cognitive skills and use of social bonds. While raven breeders defend territories year-round, non-breeders roam through large areas and form groups at food sources or night roosts. We here examined the fission-fusion patterns of non-breeding ravens over years, investigating whether birds meet repeatedly either at the same or at different locations...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336797/privacy-is-an-essentially-contested-concept-a-multi-dimensional-analytic-for-mapping-privacy
#19
Deirdre K Mulligan, Colin Koopman, Nick Doty
The meaning of privacy has been much disputed throughout its history in response to wave after wave of new technological capabilities and social configurations. The current round of disputes over privacy fuelled by data science has been a cause of despair for many commentators and a death knell for privacy itself for others. We argue that privacy's disputes are neither an accidental feature of the concept nor a lamentable condition of its applicability. Privacy is essentially contested. Because it is, privacy is transformable according to changing technological and social conditions...
December 28, 2016: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28335809/poor-uptake-of-an-online-intervention-in-a-cluster-randomised-controlled-trial-of-online-diabetes-education-for-rural-general-practitioners
#20
Christine L Paul, Leon Piterman, Jonathan E Shaw, Catherine Kirby, Kristy L Forshaw, Jennifer Robinson, Isaraporn Thepwongsa, Robert W Sanson-Fisher
BACKGROUND: In Australia, rural and remote communities have high rates of diabetes-related death and hospitalisation. General practitioners (GPs) play a major role in diabetes detection and management. Education of GPs could optimise diabetes management and improve patient outcomes at a population level. The study aimed to describe the uptake of a continuing medical education intervention for rural GPs and its impact on the viability of a cluster randomised controlled trial of the effects of continuing medical education on whole-town diabetes monitoring and control...
March 23, 2017: Trials
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