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https://www.readbyqxmd.com/read/28819329/efficient-computation-of-electrograms-and-ecgs-in-human-whole-heart-simulations-using-a-reaction-eikonal-model
#1
Aurel Neic, Fernando O Campos, Anton J Prassl, Steven A Niederer, Martin J Bishop, Edward J Vigmond, Gernot Plank
Anatomically accurate and biophysically detailed bidomain models of the human heart have proven a powerful tool for gaining quantitative insight into the links between electrical sources in the myocardium and the concomitant current flow in the surrounding medium as they represent their relationship mechanistically based on first principles. Such models are increasingly considered as a clinical research tool with the perspective of being used, ultimately, as a complementary diagnostic modality. An important prerequisite in many clinical modeling applications is the ability of models to faithfully replicate potential maps and electrograms recorded from a given patient...
October 1, 2017: Journal of Computational Physics
https://www.readbyqxmd.com/read/28804982/epidemiological-investigation-of-outbreaks-of-fowl-adenovirus-infections-in-commercial-chickens-in-china
#2
Y Niu, Q Sun, G Zhang, W Sun, X Liu, Y Xiao, Y Shang, S Liu
One hundred and five fowl adenovirus (FAdV) strains were isolated in China from 2015 to 2016 from poultry with inclusion body hepatitis (IBH) and hydropericardium syndrome (HPS). Polymerase chain reactions determined that 68 were FAdV species C, five were FAdV species D, two were FAdV species E, and 30 contained two or more different FAdV strains. A phylogenetic analysis showed that the isolated FAdV strains clustered into three major groups: FAdV-C, FAdV-D and FAdV-E. Based on a hexon gene sequencing analysis, these viruses were genetically related to FAdV-4, FAdV-7, FAdV-8b and FAdV-11, of which FAdV-4 was dominant (93% of the strains)...
August 13, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28800706/parsing-the-hypomanic-personality-explicating-the-nature-of-specific-dimensions-defining-mania-risk
#3
Kasey Stanton, Daniel B McArtor, David Watson
Considerable research has used the Hypomanic Personality Scale (HPS) to assess traits conferring risk for hypomanic and manic episodes. Although the HPS has been shown to be defined by several distinct sets of content, most research has continued to rely exclusively on HPS total scores, due to (a) little research having examined its structure and (b) the discrepant structural results obtained in the few available studies. Therefore, we examined the structure and relations of the HPS in a large sample of community adults ( N = 737) receiving psychiatric treatment...
August 1, 2017: Assessment
https://www.readbyqxmd.com/read/28793993/taurolidine-citrate-heparin-lock-reduces-catheter-related-bloodstream-infections-in-intestinal-failure-patients-dependent-on-home-parenteral-support-a-randomized-placebo-controlled-trial
#4
Siri Tribler, Christopher F Brandt, Anne H Petersen, Jørgen H Petersen, Kristian A Fuglsang, Michael Staun, Per Broebech, Claus E Moser, Palle B Jeppesen
Background: In patients with intestinal failure who are receiving home parenteral support (HPS), catheter-related bloodstream infections (CRBSIs) inflict health impairment and high costs.Objective: This study investigates the efficacy and safety of the antimicrobial catheter lock solution, taurolidine-citrate-heparin, compared with heparin 100 IE/mL on CRBSI occurrence.Design: Forty-one high-risk patients receiving HPS followed in a tertiary HPS unit were randomly assigned in a double-blinded, placebo-controlled trial...
August 9, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28791327/use-of-endocytoscopy-for-identification-of-sessile-serrated-adenoma-polyps-and-hyperplastic-polyps-by-quantitative-image-analysis-of-the-luminal-areas
#5
Yushi Ogawa, Shin-Ei Kudo, Yuichi Mori, Nobunao Ikehara, Yasuharu Maeda, Kunihiko Wakamura, Masashi Misawa, Toyoki Kudo, Takemasa Hayashi, Hideyuki Miyachi, Atsushi Katagiri, Fumio Ishida, Haruhiro Inoue
BACKGROUND AND STUDY AIMS:  Recent studies that used magnifying chromoendoscopy and endocytoscopy (EC) to investigate endoscopic features of sessile serrated adenoma/polyps (SSA/Ps) suggested that a dilated crypt opening was an important indicator of SSA/Ps. However, no studies to date have measured the actual extent of dilatation. Hence, we investigated retrospectively the luminal areas using EC to determine a cutoff value for differentiating SSA/Ps from hyperplastic polyps (HPs). PATIENTS AND METHODS : A total of 101 lesions, including 25 SSA/Ps, 66 HPs, and 10 normal mucosal samples, assessed by an integrated-type EC were collected...
August 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28782254/in-vitro-study-of-central-nervous-system-foreign-body-response-towards-hydrogel-particle-modified-planar-substrate
#6
Emily A Morin, Wei He
Central nervous system (CNS) neural device functionality hinges on effective communication with surrounding neurons. This depends on both the permissiveness of the device material to promote neuron integration and the ability of the device to avoid a chronic inflammatory response. Previously our lab developed a method using surface adsorbed hydrogel particles (HPs) to promote neuron integration onto typically non-neural-permissive substrates. However, little information is known regarding CNS inflammatory cell type responses toward the modified HP surface...
August 7, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28782001/effectiveness-of-computer-aided-diagnosis-of-colorectal-lesions-using-novel-software-for-magnifying-narrow-band-imaging-a-pilot-study
#7
Naoto Tamai, Yutaka Saito, Taku Sakamoto, Takeshi Nakajima, Takahisa Matsuda, Kazuki Sumiyama, Hisao Tajiri, Ryosuke Koyama, Shoji Kido
BACKGROUND AND STUDY AIMS:  Magnifying narrow-band imaging (M-NBI) enables detailed observation of microvascular architecture and can be used in endoscopic diagnosis of colorectal lesion. However, in clinical practice, differential diagnosis and estimation of invasion depth of colorectal lesions based on M-NBI findings require experience. Therefore, developing computer-aided diagnosis (CAD) for M-NBI would be beneficial for clinical practice. The aim of this study was to evaluate the effectiveness of software for CAD of colorectal lesions...
August 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28779857/hormonal-changes-over-the-spawning-cycle-in-the-female-three-spined-stickleback-gasterosteus-aculeatus
#8
Chrysoula Roufidou, Monika Schmitz, Ian Mayer, Marion Sebire, Ioanna Katsiadaki, Yi Ta Shao, Bertil Borg
Female three-spined sticklebacks are batch spawners laying eggs in a nest built by the male. We sampled female sticklebacks at different time points, when they were ready to spawn and 6, 24, 48 and 72 hours post-spawning (hps) with a male. Following spawning, almost all females (15 out of 19) had ovulated eggs again at Day 3 post-spawning (72hps). At sampling, plasma, brain and pituitaries were collected, and the ovary and liver were weighed. Testosterone (T) and estradiol (E2) were measured by radioimmunoassay...
August 2, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28773956/pentaethylenehexamine-loaded-hierarchically-porous-silica-for-co%C3%A2-adsorption
#9
Changchun Ji, Xin Huang, Lei Li, Fukui Xiao, Ning Zhao, Wei Wei
Recently, amine-functionalized materials as a prospective chemical sorbent for post combustion CO₂ capture have gained great interest. However, the amine grafting for the traditional MCM-41, SBA-15, pore-expanded MCM-41 or SBA-15 supports can cause the pore volume and specific surface area of sorbents to decrease, significantly affecting the CO₂ adsorption-desorption dynamics. To overcome this issue, hierarchical porous silica with interparticle macropores and long-range ordering mesopores was prepared and impregnated with pentaethylenehexamine...
October 15, 2016: Materials
https://www.readbyqxmd.com/read/28765649/hyperbolic-polaritons-enabled-dark-field-lens-for-sensitive-detection
#10
Lian Shen, Huaping Wang, Rujiang Li, Zhiwei Xu, Hongsheng Chen
Sensitive detection of features in a nanostructure may sometimes be puzzled in the presence of significant background noise. In this regard, background suppression and super-resolution are substantively important for detecting weakly scattering nanoscale features. Here, we present a lens design, termed hyperbolic-polaritons-enabled dark-field lens (HPEDL), which has the ability to accomplish straightforward sensitive detection. This HPEDL structure consists of type I and type II hyperbolic media that support high-k field waves via hyperbolic polaritons (HPs)...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28759737/differential-diagnosis-of-hepatopulmonary-syndrome-hps-portopulmonary-hypertension-pph-and-hereditary-hemorrhagic-telangiectasia-hht
#11
REVIEW
Inna Krynytska, Mariya Marushchak, Anna Mikolenko, Anzhela Bob, Iryna Smachylo, Ludmyla Radetska, Olga Sopel
Hepatopulmonary syndrome (HPS) is a severe complication of advanced liver disease associated with an extremely poor prognosis. HPS is diagnosed in 4-47% of patients with cirrhosis and in 15-20% of candidates for liver transplantation. In addition, severe hypoxia is associated with a high risk of complications of liver transplantation (a 30% chance during the first 90 days) and increases the gap between transplantation and improving arterial oxygenation. The pathogenesis of HPS is not fully understood, and no effective pharmacological treatment has been developed yet...
July 31, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28752439/psychometrics-in-action-science-as-practice
#12
Jacob Pearce
Practitioners in health sciences education and assessment regularly use a range of psychometric techniques to analyse data, evaluate models, and make crucial progression decisions regarding student learning. However, a recent editorial entitled "Is Psychometrics Science" highlighted some core epistemological and practical problems in psychometrics, and brought its legitimacy into question. This paper attempts to address these issues by applying some key ideas from history and philosophy of science (HPS) discourse...
July 27, 2017: Advances in Health Sciences Education: Theory and Practice
https://www.readbyqxmd.com/read/28751988/hepatitis-b-vaccination-status-among-health-care-workers-in-a-tertiary-hospital-in-ethiopia
#13
Mohammed Biset Ayalew, Boressa Adugna Horsa
BACKGROUND: Even though health professionals (HPs) need special consideration for hepatitis B virus (HBV) vaccination, this is not widely implemented in low- and middle-income countries. The aim of this study was to determine the vaccination status of health professionals against hepatitis B virus infection, to identify barriers to vaccination and to identify factors associated with vaccination status. METHODS: This cross-sectional study was conducted from June 1 to 15, 2016...
2017: Hepatitis Research and Treatment
https://www.readbyqxmd.com/read/28748737/emergency-hartmann-s-procedure-and-its-reversal-a-totally-laparoscopic-2-step-surgery-for-the-treatment-of-hinchey-iii-and-iv-diverticulitis
#14
Diletta Cassini, Michelangelo Miccini, Farshad Manoochehri, Matteo Gregori, Gianandrea Baldazzi
BACKGROUND: Hartmann's procedure (HP) followed by reversal restoration is the first choice for treatment of diffuse diverticular peritonitis. There is no unanimous consensus regarding the use of laparoscopy to treat the same condition. METHODS: Data from 60 patients with diverticular diffuse peritonitis who underwent urgent HP followed by laparoscopic reversal were retrospectively analyzed. Patients were divided into 2 groups according to the open or laparoscopic HP (OHP, 24 patients; LHP, 36 patients)...
July 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28735019/1-year-surgical-outcomes-of-complete-or-incomplete-enucleation-of-prostate-by-monopolar-electrocoagulation-photoselective-vapoenucleation-of-120w-greenlight-laser-and-holmium-laser
#15
Sung Yong Cho, Juhyun Park, Sangjun You, Min Chul Cho, Hyeon Jeong, Hwancheol Son
OBJECTIVE: To evaluate surgical outcomes of patients who underwent complete or incomplete enucleation technique during a short-term postoperative period METHODS: Patients having intractable LUTS/BPH and prostates > 30 grams with obstructed pattern in the urodynamic examinations were included. They underwent TUR-P, 120 W greenlight laser HPS-PVEP, or HoLEP. Patients with the size of remnant prostates minus surgical defects < 25 grams were grouped into the completely enucleated group (group C) and other were group into the partially enucleated group (group P)...
July 19, 2017: Urology
https://www.readbyqxmd.com/read/28732852/investigating-the-h2o-o2-selective-permeability-from-a-view-of-multi-scale-structure-of-starch-sio2-nanocomposites
#16
Siyuan Liu, Xiaoxi Li, Ling Chen, Lin Li, Bing Li, Jie Zhu, Xiaoyun Liang
In order to control H2O/O2 selective permeability of starch based nanocompsites for food packaging, the addition of SiO2 nanoparticles was proven to be an effective method. The results suggested that the SiO2/hydroxypropyl starch (HPS) ratio was a feasible approach to regulate the film multi-scale structure. The H2O/O2 selective permeability was influenced by comprehensive factors including film short-range molecular conformation, crystalline structure and aggregated structure. The increase of micro-ordered region size was likely to favor the improvement of water vapor barrier property and the rise of compactness in this region seems to contribute to the oxygen prevention...
October 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28729092/annexin-a2-modulated-proliferation-of-pulmonary-arterial-smooth-muscle-cells-depends-on-caveolae-and-caveolin-1-in-hepatopulmonary-syndrome
#17
Lin Liao, Binwu Zheng, Bin Yi, Chang Liu, Lin Chen, Ziyang Zeng, Jing Gao
We have established that annexin A2 (ANXA2) is an important factor in the experimental hepatopulmonary syndrome (HPS) serum-induced proliferation of pulmonary arterial smooth muscle cells (PASMCs). However, the detailed mechanism remains unclear. ANXA2 translocated to the caveolin-enriched microdomains (caveolae) in PASMCs upon HPS serum stimulation. The disruption of caveolae by Methyl-β-cyclodextrin (MβCD) alleviated the caveolae recruitment of ANXA2 and the ANXA2-mediated activation of ERK1/2 and NF-κB, so that ANXA2-modulated PASMC proliferation was suppressed...
July 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28723863/factors-associated-with-classification-of-hyperplastic-polyps-as-sessile-serrated-adenomas-polyps-on-morphologic-review
#18
Joseph C Anderson, Mikhail Lisovsky, Mary A Greene, Catherine Hagen, Amitabh Srivastava
BACKGROUND: Distinguishing sessile serrated adenomas/polyp (SSA/P), a subset of serrated polyps, from hyperplastic polyps (HPs) remains a challenge and has surveillance implications. Our goal was to identify clinical and pathologic factors associated with serrated polyps originally read as HPs being reassessed as SSA/Ps versus confirmed as HPs. METHODS: Data were collected from consecutive patients with a right-sided HP and a corresponding comparison group with conventional adenomas between 1993 and 2003...
July 18, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28719302/a-fatal-hantavirus-pulmonary-syndrome-misdiagnosed-as-dengue-an-investigation-into-the-first-reported-case-in-rio-de-janeiro-state-brazil
#19
Renata Carvalho de Oliveira, Alexandro Guterres, Bernardo Rodrigues Teixeira, Jorlan Fernandes, João Marcos Penna Júnior, Reynaldo de Jesus Oliveira Júnior, Liana Strecht Pereira, João Bosco Júnior, Patrícia Soares Meneguete, Cristina Maria Giordano Dias, Cibele Rodrigues Bonvicino, Paulo Sérgio D'Andrea, Elba Regina Sampaio de Lemos
We report the results of an investigation into a fatal case of hantavirus pulmonary syndrome (HPS) in Rio de Janeiro State, Brazil, where the disease had not been reported previous to 2015. Following the notification of an HPS case, serum samples were collected from the household members and work contacts of the HPS patient and tested for antibody to hantaviruses. Seroprevalence of 22% (10/45) was indicated for hantavirus out of 45 human samples tested. Blood and tissue samples were collected from 72 rodents during fieldwork to evaluate the prevalence of hantavirus infection, by using enzyme-linked immunosorbent assay IgG, and to characterize the rodent hantavirus reservoir(s), by reverse transcription polymerase chain reaction and sequencing...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28704454/indocyanine-green-kinetics-with-near-infrared-spectroscopy-predicts-cerebral-hyperperfusion-syndrome-after-carotid-artery-stenting
#20
Ichiro Nakagawa, Hun Soo Park, Shohei Yokoyama, Shuichi Yamada, Yasushi Motoyama, Young Su Park, Takeshi Wada, Kimihiko Kichikawa, Hiroyuki Nakase
BACKGROUND: Cerebral hyperperfusion syndrome (HPS) is a potentially life-threatening complication following carotid artery stenting (CAS) and carotid endoarterectomy (CEA). Early prediction and treatment of patients at risk for HPS are required in patients undergoing CAS because HPS occurs significantly earlier after CAS than CEA. Near-infrared spectroscopy (NIRS) is often used for monitoring, and indocyanine green (ICG) kinetics by NIRS (ICG-NIRS) can detect reductions in cerebral perfusion in patients with acute stroke...
2017: PloS One
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