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https://www.readbyqxmd.com/read/27912167/beamstop-based-low-background-ptychography-to-image-weakly-scattering-objects
#1
Juliane Reinhardt, Robert Hoppe, Georg Hofmann, Christian D Damsgaard, Jens Patommel, Christoph Baumbach, Sina Baier, Amélie Rochet, Jan-Dierk Grunwaldt, Gerald Falkenberg, Christian G Schroer
In recent years, X-ray ptychography has been established as a valuable tool for high-resolution imaging. Nevertheless, the spatial resolution and sensitivity in coherent diffraction imaging are limited by the signal that is detected over noise and over background scattering. Especially, coherent imaging of weakly scattering specimens suffers from incoherent background that is generated by the interaction of the central beam with matter along its propagation path in particular close to and inside of the detector...
November 14, 2016: Ultramicroscopy
https://www.readbyqxmd.com/read/27909393/a-comparison-of-multiple-behavior-models-in-a-simulation-of-the-aftermath-of-an-improvised-nuclear-detonation
#2
Nidhi Parikh, Harshal G Hayatnagarkar, Richard J Beckman, Madhav V Marathe, Samarth Swarup
We describe a large-scale simulation of the aftermath of a hypothetical 10kT improvised nuclear detonation at ground level, near the White House in Washington DC. We take a synthetic information approach, where multiple data sets are combined to construct a synthesized representation of the population of the region with accurate demographics, as well as four infrastructures: transportation, healthcare, communication, and power. In this article, we focus on the model of agents and their behavior, which is represented using the options framework...
November 2016: Autonomous Agents and Multi-agent Systems
https://www.readbyqxmd.com/read/27908820/true-aneurysm-of-the-inferior-thyroid-artery-a-case-report-and-literature-review
#3
Luigi Venturini, Paolo Sapienza, Raffaele Grande, Valerio Scarano Catanzaro, Fabrizio Fanelli, Luca di Marzo
Aneurysms of the inferior thyroid artery (ITA) are extremely rare and potentially determine severe sequelae. We report a case of true ITA aneurysm in a 45-year old Caucasian woman treated with endovascular embolization; postoperative course was uneventful and, at 6-month follow-up, the aneurysm is completely thrombized. A systematic review of the literature has been also performed to identify the epidemiologic and clinical characteristics and diagnostic and operative options of this disease. Size alone is not able to predict the fate of the aneurysm and an aggressive treatment seems to be justified because of the high risk of complications in case of rupture...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27906085/tissue-engineered-cardiac-patch-seeded-with-human-induced-pluripotent-stem-cell-derived-cardiomyocytes-promoted-the-regeneration-of-host-cardiomyocytes-in-a-rat-model
#4
Tadahisa Sugiura, Narutoshi Hibino, Christopher K Breuer, Toshiharu Shinoka
BACKGROUND: Thousands of babies are born with congenital heart defects that require surgical repair involving a prosthetic implant. Lack of growth in prosthetic grafts is especially detrimental in pediatric surgery. Cell seeded biodegradable tissue engineered grafts are a novel solution to this problem. The purpose of the present study is to evaluate the feasibility of seeding human induced pluripotent stem cell derived cardiomyocytes (hiPS-CMs) onto a biodegradable cardiac patch. METHODS: The hiPS-CMs were cultured on a biodegradable patch composed of a polyglycolic acid (PGA) and a 50:50 poly (l-lactic-co-ε-caprolactone) copolymer (PLCL) for 1 week...
December 1, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27903275/cell-cycle-inhibition-reduces-inflammatory-responses-neuronal-loss-and-cognitive-deficits-induced-by-hypobaria-exposure-following-traumatic-brain-injury
#5
Jacob W Skovira, Junfang Wu, Jessica J Matyas, Alok Kumar, Marie Hanscom, Shruti V Kabadi, Raymond Fang, Alan I Faden
BACKGROUND: Traumatic brain injury (TBI) patients in military settings can be exposed to prolonged periods of hypobaria (HB) during aeromedical evacuation. Hypobaric exposure, even with supplemental oxygen to prevent hypoxia, worsens outcome after experimental TBI, in part by increasing neuroinflammation. Cell cycle activation (CCA) after TBI has been implicated as a mechanism contributing to both post-traumatic cell death and neuroinflammation. Here, we examined whether hypobaric exposure in rats subjected to TBI increases CCA and microglial activation in the brain, as compared to TBI alone, and to evaluate the ability of a cyclin-dependent kinase (CDK) inhibitor (CR8) to reduce such changes and improve behavioral outcomes...
December 1, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27899054/an-unusual-presentation-of-an-incarcerated-spigelian-hernia
#6
Karen Peeters, Frederik Huysentruyt, Peter Delvaux
Spigelian hernias are rare hernias, occurring through a defect in the Spigelian aponeurosis. Like other hernias, they may contain abdominal contents but are more likely to be incarcerated due to the small size of the fascial defect. Multiple intra-abdominal organs have reportedly been found in Spigelian hernias. A search of the literature showed only nine reported cases in which an appendix has been found within a Spigelian hernia. We present a patient with a history of lower abdominal pain since 10 weeks with a large intra-abdominal mass in the right iliac fossa...
November 29, 2016: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/27898453/resolution-of-rectal-prolapse-by-vaginal-reconstruction
#7
Hemikaa Devakumar, Neeraja Chandrasekaran, Alexandriah Alas, Laura Martin, G Willy Davila, Eric Hurtado
BACKGROUND: Rectal prolapse is a disorder of the pelvic floor in which the layers of the rectal mucosa protrude outward through the anus. Surgical repair is the mainstay of treatment. Options include intra-abdominal procedures such as rectopexy and perineal procedures such as the Delorme and Altemeier perineal rectosigmoidectomy. Rectal and vaginal prolapse can often coexist. However, to our knowledge, there are no reported cases of rectal prolapse resolved by the repair of a compressive enterocele abutting the anterior rectal wall through a vaginal approach alone...
November 28, 2016: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/27895259/arene-guest-selectivity-and-pore-flexibility-in-a-metal-organic-framework-with-semi-fluorinated-channel-walls
#8
Rebecca Smith, Iñigo J Vitórica-Yrezábal, Adrian Hill, Lee Brammer
A metal-organic framework (MOF) with one-dimensional channels of approximately hexagonal cross-section [Ag2(O2CCF2CF2CO2)(TMP)] 1: (TMP =2,3,5,6-tetramethylpyrazine) has been synthesized with MeOH filling the channels in its as-synthesized form as [Ag2(O2CCF2CF2CO2)(TMP)]·n(MeOH) 1-MEOH: (n = 1.625 by X-ray crystallography). The two types of ligand connect columns of Ag(I) centres in an alternating manner, both around the channels and along their length, leading to an alternating arrangement of hydrocarbon (C-H) and fluorocarbon (C-F) groups lining the channel walls, with the former groups projecting further into the channel than the latter...
January 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/27895049/daily-feeding-and-protein-metabolism-rhythms-in-senegalese-sole-post-larvae
#9
Carmen Navarro-Guillén, Manuel Yúfera, Sofia Engrola
Fish hatcheries must adapt larval feeding protocols to the feeding behavior and metabolism pattern to obtain a more efficient feeds utilization. Fish larvae exhibit daily ingesting rhythms rather than ingesting food continuously throughout the day. The aim of this study was to determine the daily patterns of feed intake, protein digestibility, protein retention and catabolism in Senegalese sole post-larvae (Solea senegalensis; 33 days post-hatching) using (14)C-labelled Artemia protein and incubation in metabolic chambers...
November 28, 2016: Biology Open
https://www.readbyqxmd.com/read/27891696/gender-differences-in-chronic-constipation-on-anorectal-motility
#10
M Zakari, J Nee, W Hirsch, B Kuo, A Lembo, K Staller
BACKGROUND: The epidemiology of chronic constipation (CC) skews toward female predominance, yet men make up an important component of those suffering from CC. We sought to determine whether there are sex-specific differences in symptoms and physiologic parameters on anorectal manometry (ARM). METHODS: We performed a case-control analysis of sequential men and age-matched women (2:1 ratio) presenting for ARM as part of the evaluation of CC. We collected physiologic parameters derived from 3D high-resolution ARM in addition to the ROME III constipation module and the Pelvic Floor Distress Inventory 20 (PFDI-20) questionnaires...
November 27, 2016: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/27891176/a-series-of-patients-with-purging-type-anorexia-nervosa-who-do-tube-vomiting
#11
Takeshi Horie, Saki Harashima, Ryo Yoneda, Maiko Hiraide, Shuji Inada, Makoto Otani, Kazuhiro Yoshiuchi
BACKGROUND: It is important for clinicians to assess their patients' purging behavior. Various methods of purging, such as self-induced vomiting are well-known. Because patients do not always report their purging behavior, knowing the clinical signs that indicate the behavior is useful. However, we have experienced patients who did not have the reported physical signs of self-induced vomiting because they used hoses instead of their fingers to purge their stomach contents, which they call "tube vomiting"...
2016: BioPsychoSocial Medicine
https://www.readbyqxmd.com/read/27890163/dissuasive-exit-signage-for-building-fire-evacuation
#12
Joakim Olander, Enrico Ronchi, Ruggiero Lovreglio, Daniel Nilsson
This work presents the result of a questionnaire study which investigates the design of dissuasive emergency signage, i.e. signage conveying a message of not utilizing a specific exit door. The work analyses and tests a set of key features of dissuasive emergency signage using the Theory of Affordances. The variables having the largest impact on observer preference, interpretation and noticeability of the signage have been identified. Results show that features which clearly negate the exit-message of the original positive exit signage are most effective, for instance a red X-marking placed across the entirety of the exit signage conveys a clear dissuasive message...
March 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/27890137/the-identification-of-combat-survivability-tasks-associated-with-naval-vessel-damage-in-maritime-environments
#13
Kane J Middleton, Amelia J Carr
Effective Navy personnel have the physical ability to perform combat survivability tasks commensurate with their unique physical requirements due to the distinctive characteristics of naval platforms. The aim of this investigation was to identify the physically demanding whole-of-ship tasks that are performed by Navy personnel while at sea. A mixed method design was used to identify tasks, inclusive of focus groups and field observations. From a series of ten focus groups, nine tasks were deemed to be physically demanding whole-of-ship tasks...
March 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/27887016/inferior-vena-caval-filter-strut-perforation-causing-intramural-duodenal-haematoma
#14
Zoheb Berry Williams, Nicole M Organ, Stephen Deane
We present a case of intramural duodenal haematoma caused by inferior vena caval (IVC) filter strut perforation requiring innovative open and endovascular retrieval. A 32-year-old woman presents in shock with dull epigastric pain and non-bilious vomiting. She had previously had an IVC filter for deep venous thrombosis and pulmonary embolism. Computed tomography demonstrated strut perforation into the second part of the duodenum, causing intramural haematoma and duodenal obstruction. Laparotomy facilitated evacuation of the duodenal haematoma, while the IVC filter was retrieved by endovascular means...
November 24, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27885342/venous-adventitial-cystic-disease-a-review-of-45-cases-treated-since-1963
#15
REVIEW
Corey Bascone, Mazen Iqbal, Patrick Narh-Martey, Mauricio Szuchmacher, Michael Cicchillo, Kambhampaty V Krishnasastry
Purpose. To review and identify the most accurate ways of diagnosing and treating adventitial cystic disease (ACD) of the venous system. Methods. Cases of ACD were collected through three popular medical databases, including PubMed, Cochrane, OVID, and MEDLINE. After reviewing the literature, the sites of occurrence of 323 cases of adventitial cystic disease were documented, and all cases of arterial ACD were excluded. The clinical features, treatment, and subsequent course of 45 cases of venous ACD are included in this paper...
2016: International Journal of Vascular Medicine
https://www.readbyqxmd.com/read/27881832/hematogenous-calcaneal-osteomyelitis-in-children-a-systematic-review-of-the-literature
#16
REVIEW
Megan L Mooney, Kirk Haidet, Jiayong Liu, Nabil A Ebraheim
: Osteomyelitis in children commonly affects long bones such as the femur, tibia, and humerus. There have been relatively few documented studies of osteomyelitis at unusual locations, such as the calcaneus. The objective of this study is to systematically review information on the diagnostic and treatment methods of calcaneal osteomyelitis as well as associated complications. Methods included research database searches using primarily PubMed and EMBASE databases. Results of the review show no clear approach to diagnosis and treatment of calcaneal osteomyelitis in children...
November 23, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27880921/determination-of-the-gut-retention-of-plastic-microbeads-and-microfibers-in-goldfish-carassius-auratus
#17
Stefan Grigorakis, Sherri A Mason, Ken G Drouillard
Microplastics are ubiquitous pollutants in aquatic habitats and commonly found in the gut contents of fish yet relatively little is known about the retention of these particles by fish. In this study, goldfish were fed a commercial fish food pellet amended with 50 particles of one of two microplastics types, microbeads and microfibers. Microbeads were obtained from a commercial facial cleanser while microfibers were obtained from washed synthetic textile. Following consumption of the amended pellet, fish were allowed to feed to satiation on non-amended food followed by fasting for periods ranging from 1...
November 20, 2016: Chemosphere
https://www.readbyqxmd.com/read/27880060/neurogenic-pulmonary-oedema-complicating-traumatic-posterior-fossa-extradural-haematoma-case-report-and-review
#18
Ajay Hegde, G Lakshmi Prasad, Priyanka Kini
INTRODUCTION: Pulmonary oedema is accumulation of fluid in the lung air spaces and interstitia. Neurogenic pulmonary oedema (NPE) is a potentially life-threatening condition which has been noted in head injury, subarachnoid haemorrhage (SAH), intracerebral haemorrhage (ICH) and others. Timely management is crucial to achieve good outcome; however, no specific guidelines have been defined. METHODS: A 33-year female involved in a motor vehicular accident had a GCS of 14/15 and CT scan showed a moderate-sized unilateral posterior fossa extradural haematoma (PFEDH)...
November 23, 2016: Brain Injury: [BI]
https://www.readbyqxmd.com/read/27878901/radioactive-cesium-and-potassium-in-cattle-living-in-the-zone-in-preparation-for-the-lifting-of-the-evacuation-order-of-the-fukushima-nuclear-accident
#19
Itaru Sato, Jun Sasaki, Hiroshi Satoh, Takahisa Murata, Kumiko Otani, Keiji Okada
To contribute to the reconstruction of livestock industry in Fukushima, radioactive cesium ((134) Cs, (137) Cs) and potassium ((4) °K) were measured in various tissues of beef cattle living in an area where the evacuation order will be lifted in the near future. Radioactive cesium concentration was less than 100 Bq/kg in most of the samples. Skeletal muscles and kidney had the highest concentrations of radioactive cesium, whereas the liver was lowest among samples, excepting blood. Radioactive cesium concentration in the sirloin, tenderloin and top round was significantly higher than that in the neck muscle...
November 23, 2016: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/27871315/management-of-uterine-rupture-a-case-report-and-review-of-the-literature
#20
Thomas Obinchemti Egbe, Gregory Edie Halle-Ekane, Charlotte Nguefack Tchente, Jacques Ernest Nyemb, Eugene Belley-Priso
BACKGROUND: Maternal morbidity and mortality has been a major World Health Organization concern over the years, especially in sub-Saharan Africa. This paper reports uterine rupture with severe hypovolemic shock managed at the Douala General Hospital, Cameroon. Early clinical diagnosis is paramount to maternal survival. CASE PRESENTATION: Mrs. MM aged 25 years, G3P2012, of the Bamileke tribe in Cameroon was admitted to our Department in hypovolemic shock BP = 70/40 mmHg, pulse 120 beats per minute, with altered consciousness (Glasgow Coma Scale = 13)...
November 21, 2016: BMC Research Notes
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