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https://www.readbyqxmd.com/read/28440591/imaging-collector-channel-entrance-with-a-new-intraocular-micro-probe-swept-source-optical-coherence-tomography
#1
Chen Xin, Xiaoya Chen, Meng Li, Yan Shi, Huaizhou Wang, Ruikang Wang, Ningli Wang
PURPOSE: To describe the use of a newly developed side-viewing catheter probe to provide the cross-sectional images of collector channel entrance (CCE), achieved by swept-source optical coherence tomography (SS-OCT). METHODS: A side-viewing SS-OCT catheter probe was developed that has a core probe diameter of 0.15 mm and an outer diameter of 0.25 mm, for the purpose of imaging CCEs within eye globe. Cadaver eyes harvested from swine and human were used to demonstrate its feasibility...
April 25, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28435188/effect-of-kisspeptin-on-in-vitro-maturation-of-sheep-oocytes
#2
Priyanka Byri, Arunakumari Gangineni, K Ramachandra Reddy, K B P Raghavender
AIM: The aim of this study was to investigate the effect of kisspeptin (KP) on in vitro maturation (IVM) of sheep oocytes aspirated from the ovaries collected from slaughterhouse. MATERIALS AND METHODS: Two different experiments were conducted to investigate the effect of KP (5, 10 and 15 µg/ml) alone (experiment 1) or in combination with follicle-stimulating hormone (FSH), luteinizing hormone (LH), and Estradiol (E2) (experiment 2) on IVM of sheep oocytes. Tissue culture medium 199 supplemented with Gentamicin was used as control medium...
March 2017: Veterinary World
https://www.readbyqxmd.com/read/28429597/is-capsule-colonoscopy-the-solution-for-incomplete-conventional-colonoscopy
#3
Miguel Mascarenhas-Saraiva
The era of colon capsule endoscopy (CCE) started in 2007. Few years later second-generation CCE (CCE-2) (Medtronic, Minneapolis, USA) was launched, featuring an improved optical system allowing for nearly 360° coverage via two 172° angle cameras, and adaptive frame rate function (ranging from 4 to 35 images per second depending on capsule motion). At present the main clinical indications for CCE are: a) completion of incomplete colonoscopy; b) polyp detection; and c) investigation of inflammatory bowel disease (IBD)...
April 21, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28416804/cumulative-culture-can-emerge-from-collective-intelligence-in-animal-groups
#4
Takao Sasaki, Dora Biro
Studies of collective intelligence in animal groups typically overlook potential improvement through learning. Although knowledge accumulation is recognized as a major advantage of group living within the framework of Cumulative Cultural Evolution (CCE), the interplay between CCE and collective intelligence has remained unexplored. Here, we use homing pigeons to investigate whether the repeated removal and replacement of individuals in experimental groups (a key method in testing for CCE) alters the groups' solution efficiency over successive generations...
April 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28403042/altered-mitochondrial-function-capacitative-calcium-entry-and-contractions-in-the-aorta-of-hypertensive-rats
#5
Iago Méndez-López, Guilherme H S Bomfim, Diego C Musial, Juan A Arranz-Tagarro, Juan P Velasco-Martín, Javier Regadera, Neide H Jurkiewicz, Aron Jurkiewicz, Antonio G García, Fernando J Padín
OBJECTIVE: It has been suggested that Ca entry through store-operated Ca channels (SOCs) is regulated by a dynamic interplay between the endoplasmic reticulum Ca stores and the mitochondria. These relationships drive the activation and inactivation of SOCs, yet it remains unclear whether this regulation of SOCs by mitochondria is altered in the aorta of spontaneously hypertensive rats (SHRs). METHODS: We performed a thorough study of the mitochondrial membrane potential, the ability of mitochondria to deal with cytosolic Ca, capacitative Ca entry (CCE), and stromal interaction molecule 1 (STIM1) and calcium release-activated calcium modulator 1 (orai1) protein expression, as well as the contractile capacity of aortic rings, in normotensive Wistar Kyoto rats (WKYs) and SHRs...
April 11, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28398662/rhesus-ce-expression-on-patient-red-blood-cells-is-an-independent-prognostic-factor-for-adenocarcinoma-of-the-lung
#6
A B Schulze, L H Schmidt, L Baie, B Heitkötter, A Kümmel, M Mohr, R Buhl, H Hillmann, G Geißler, R Kelsch, D Görlich, W E Berdel, W Hartmann, R Wiewrodt
OBJECTIVES: The influence of blood group antigens on cancerogenesis is shown for distinct tumor types, yet the impact of Rhesus blood group antigens in lung cancer is not clarified. MATERIALS AND METHODS: To investigate the impact of Rhesus blood groups a non-small cell lung cancer (NSCLC) collective (n=1,047) was analyzed retrospectively. Using a second cohort of n=340 primarily operated stage I-III NSCLC patients, we evaluated immunohistochemistry of CD47-antibody stained tissue samples in correlation to histopathologic subtype and Rhesus blood group...
April 11, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28394886/carboxylesterase-gene-amplifications-associated-with-insecticide-resistance-in-aedes-albopictus-geographical-distribution-and-evolutionary-origin
#7
Linda Grigoraki, Dimitra Pipini, Pierrick Labbé, Alexandra Chaskopoulou, Mylene Weill, John Vontas
BACKGROUND: Aedes albopictus is one of the most invasive human disease vectors. Its control has been largely based on insecticides, such as the larvicide temephos. Temephos resistance has been associated with the up-regulation, through gene amplification, of two carboxylesterase (CCE) genes closely linked on the genome, capable of sequestering and metabolizing temephos oxon, the activated form of temephos. PRINCIPAL FINDINGS: Here, we investigated the occurrence, geographical distribution and origin of the CCE amplicon in Ae...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28386770/probability-models-based-on-soil-properties-for-predicting-presence-absence-of-pythium-in-soybean-roots
#8
Kimberly K Zitnick-Anderson, Jack E Norland, Luis E Del Río Mendoza, Ann-Marie Fortuna, Berlin D Nelson
Associations between soil properties and Pythium groups on soybean roots were investigated in 83 commercial soybean fields in North Dakota. A data set containing 2877 isolates of Pythium which included 26 known spp. and 1 unknown spp. and 13 soil properties from each field were analyzed. A Pearson correlation analysis was performed with all soil properties to observe any significant correlation between properties. Hierarchical clustering, indicator spp., and multi-response permutation procedures were used to identify groups of Pythium...
April 6, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28365544/outcomes-from-extensive-training-in-critical-care-echocardiography-identifying-the-optimal-number-of-practice-studies-required-to-achieve-competency
#9
Scott J Millington, Michael Hewak, Robert T Arntfield, Yanick Beaulieu, Benjamin Hibbert, Seth Koenig, Pierre Kory, Paul Mayo, Jordan R Schoenherr
PURPOSE: Optimal instruction and assessment of critical care ultrasound (CCUS) skills requires an assessment tool to measure learner competency and changes over time. In this study, a previously published tool was used to monitor the development of critical care echocardiography (CCE) competencies, the attainment of performance plateaus, and the extent to which previous experience influenced learning. MATERIALS AND METHODS: A group of experts used the Rapid Assessment of Competency in Echocardiography (RACE) scale to rate a large pool of CCE studies performed by novices in a longitudinal design...
March 27, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28364940/seizing-market-shaping-opportunities-for-vaccine-cold-chain-equipment
#10
REVIEW
Tara Azimi, Lauren Franzel, Nina Probst
Gavi, the Vaccine Alliance, supports immunisation programmes in eligible countries to reach children with lifesaving vaccines. Dramatic improvement in the scale and performance of current cold chain systems is required to extend the reach of immunisation services - especially for children living in remote locations - to advance progress towards full vaccine coverage. Achieving these improvements will require a healthier market for cold chain equipment where the products meet user needs, are sustainably priced, and are available in sufficient quantities to meet demand...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28364931/root-cause-analysis-underscores-the-importance-of-understanding-addressing-and-communicating-cold-chain-equipment-failures-to-improve-equipment-performance
#11
Pat Lennon, Brian Atuhaire, Shahrzad Yavari, Vidya Sampath, Mercy Mvundura, Nithya Ramanathan, Joanie Robertson
Vaccine cold chain equipment (CCE) in developing countries is often exposed to harsh environmental conditions, such as extreme temperatures and humidity, and is subject to many additional challenges, including intermittent power supply, insufficient maintenance capacity, and a scarcity of replacement parts. Together, these challenges lead to high failure rates for refrigerators, potentially damaging vaccines and adversely affecting immunization coverage. Providing a sustainable solution for improving CCE performance requires an understanding of the root causes of failure...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28364916/transforming-cold-chain-performance-and-management-in-lower-income-countries
#12
Mike Brison, Yann LeTallec
In many countries, one of the common factors limiting full and equitable access to effective immunization is the existence of gaps in cold chain and logistics (CCL) systems. This article focuses on the critical contribution that better management of CCL performance can make in addressing these barriers, as well as some essential practices needed to achieve and sustain these gains. These include (i) an emphasis on continuous improvement in CCL performance indicators, (ii) strong coordination and accountability across multiple stakeholders, and (iii) making the most of limited financial resources...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28356290/novel-contrast-mixture-improves-bladder-wall-contrast-for-visualizing-bladder-injury
#13
Pradeep Tyagi, Joseph J Janicki, T Kevin Hitchens, Lesley M Foley, Mahendra Kashyap, Naoki Yoshhimura, Jonathan Kaufman
PURPOSE: Here, we tested whether combined contrast-enhanced magnetic resonance imaging (CCE-MRI), using a mixture Gadolinium and iron-oxide based contrast agents, can segment the bladder wall from the bladder lumen. CCE-MRI relies on the differences in particle size and contrast mechanisms of two agents for improved image contrast. METHODS: Under isoflurane anesthesia, T1-weighted imaging of adult female Sprague-Dawley rat bladder was performed using standard turbo spin echo sequences at 7 Tesla, before and after transurethral instillation of 0...
March 29, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28351817/do-forests-best-mitigate-co2-emissions-to-the-atmosphere-by-setting-them-aside-for-maximization-of-carbon-storage-or-by-management-for-fossil-fuel-substitution
#14
Anders Taeroe, Walid Fayez Mustapha, Inge Stupak, Karsten Raulund-Rasmussen
Forests' potential to mitigate carbon emissions to the atmosphere is heavily debated and a key question is if forests left unmanaged to store carbon in biomass and soil provide larger carbon emission reductions than forests kept under forest management for production of wood that can substitute fossil fuels and fossil fuel intensive materials. We defined a modelling framework for calculation of the carbon pools and fluxes along the forest energy and wood product supply chains over 200 years for three forest management alternatives (FMA): 1) a traditionally managed European beech forest, as a business-as-usual case, 2) an energy poplar plantation, and 3) a set-aside forest left unmanaged for long-term storage of carbon...
March 25, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28319774/kinetics-and-mechanism-of-hemicelluloses-removal-from-cellulosic-fibers-during-the-cold-caustic-extraction-process
#15
Jianguo Li, Huichao Hu, Hailong Li, Liulian Huang, Lihui Chen, Yonghao Ni
The effective separation of hemicelluloses and cellulose is desirable for the production of high-purity cellulose, which is a sustainable raw material for many value-added applications. For this purpose, the kinetics and mechanism of hemicelluloses removal from the cold caustic extraction (CCE) were investigated in the present study. The hemicelluloses removal process consists of: 1) the bulk phase, characteristic of significant hemicelluloses removal; 2) the transition phase, hemicelluloses transferring from the inner to the outer region of the fiber wall, with negligible overall hemicelluloses removal; 3) the residual phase, presenting a weak but continuing hemicelluloses removal...
March 7, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28295697/diagnostic-capability-of-colon-capsule-endoscopy-for-advanced-colorectal-cancer-a-pilot-study
#16
Yumiko Ota, Atsuo Yamada, Yuka Kobayashi, Ryota Niikura, Takayuki Shimpoh, Akiko Narita, Shuntaro Yoshida, Nobumi Suzuki, Hirotsugu Watabe, Yoshihiro Hirata, Soichiro Ishihara, Eiji Sunami, Toshiaki Watanabe, Kazuhiko Koike
BACKGROUND AND AIM: Colon capsule endoscopy (CCE) is a safe and effective method for detecting lesions in the colon. However, the sensitivity of CCE in detecting advanced colorectal cancer (CRC) has not been sufficiently evaluated. Therefore, the aim of the present study was to assess the sensitivity of CCE in detecting advanced CRC. METHODS: Patients previously diagnosed with advanced CRC by conventional colonoscopy underwent CCE. Primary outcome measure was the sensitivity of CCE in detecting advanced CRC per patient and per lesion...
March 10, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28286556/prospective-study-of-factors-important-to-achieve-observation-of-the-entire-colon-on-colon-capsule-endoscopy
#17
Junichi Sato, Masanao Nakamura, Osamu Watanabe, Takeshi Yamamura, Kohei Funasaka, Eizaburo Ohno, Ryoji Miyahara, Hiroki Kawashima, Hidemi Goto, Yoshiki Hirooka
BACKGROUND: Colon capsule endoscopy (CCE) is a procedure in which capsule swallowing facilitates observation of the lumen of the entire digestive tract. It does not require an air supply, and is a noninvasive procedure with a markedly low risk of adverse events in comparison with conventional colonoscopy (CS). It reduces patient stress, and may be acceptable to patients. A limitation of this procedure is that the entire colon observation rate (CCE excretion rate, completed CCE rate) is not 100%...
January 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28265285/accuracy-of-colon-capsule-endoscopy-in-detecting-colorectal-polyps-in-individuals-with-familial-colorectal-cancer-could-we-avoid-colonoscopies
#18
Cristina Alvarez-Urturi, Gloria Fernández-Esparrach, Inés Ana Ibáñez, Cristina Rodríguez De Miguel, Josep Maria Dedeu, Xavier Bessa, Henry Córdova, Maria Pellisé, Francesc Balaguer, Angels Ginés, Luis Barranco, Isis K Araujo, Montserrat Andreu, Josep Llach, Antoni Castells, Begoña González-Suarez
Background. Individuals with a family history of colorectal cancer (CRC) have an increased risk of CRC. We evaluated the diagnostic yield of CCE in the detection of lesions and also two different colon preparations. Methods. A prospective multicenter study was designed to assess CCE diagnostic yield in a cohort of asymptomatic individuals with a family history of CRC. CCE and colonoscopy were performed on the same day by 2 endoscopists who were blinded to the results of the other procedure. Results. Fifty-three participants were enrolled...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28264708/effectiveness-of-persea-major-kopp-lauraceae-extract-against-enterococcus-faecalis-a-preliminary-in-vitro-study
#19
Lusiane Volpato, Marilisa Carneiro Leão Gabardo, Denise Piotto Leonardi, Paulo Henrique Tomazinho, Leila Teresinha Maranho, Flares Baratto-Filho
BACKGROUND: Persea major Kopp (Lauraceae) is a plant with wound healing, antibacterial, and analgesic properties. The aim of this study was to assess the in vitro antibacterial activity of the concentrated crude extract (CCE) and ethyl acetate fraction (EAF) of this plant against Enterococcus faecalis and compare it with calcium hydroxide [Ca(OH)2] paste and 2% chlorhexidine digluconate (CHX). METHODS: The plant material was collected, and an extract was prepared according to the requirements of the study (CCE and EAF)...
March 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28263686/the-relationship-between-contextual-cues-in-virtual-environments-and-creative-processes
#20
Jérôme Guegan, Julien Nelson, Todd Lubart
Because of the range of design possibilities they provide, virtual environments have a promising potential to support creative work. This article presents an experiment that explores the effects of contextual cues, provided in a virtual environment, on performance in a creative task. One hundred thirty-five participants completed a classical creativity task in one of three environments: a virtual creativity-conducive environment (CCE), comprising standardized elements identified from a survey as being characteristic of environments that support creativity, a real meeting room (real control environment), and its virtual replication (virtual control environment)...
March 2017: Cyberpsychology, Behavior and Social Networking
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