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https://www.readbyqxmd.com/read/28110407/in-vitro-performance-of-cad-cam-fabricated-implant-supported-temporary-crowns
#1
Martin Rosentritt, Philipp Raab, Sebastian Hahnel, Matthias Stöckle, Verena Preis
OBJECTIVES: The aim of this study was to investigate the in-vitro performance and fracture resistance of a temporary computer-aided designed and computer-aided manufactured polymethylmethacrylate (CAD/CAM-PMMA) material as implant or tooth-supported single crown with respect to the clinical procedure (permanently bonded/temporarily cemented). MATERIALS AND METHODS: Sixty-four crowns were fabricated on implants or human molar teeth simulating (a) labside procedure on prefabricated titanium-bonding base ([TiBase] implant crown bonded in laboratory, screwed chairside), (b) labside procedure ([LAB] standard abutment and implant crown bonded in laboratory, screwed chairside), (c) chairside procedure ([CHAIR] implant crown bonded to abutment), and (d) reference ([TOOTH] crowns luted on prepared human teeth)...
January 21, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28109043/angiographic-assessment-of-aortic-regurgitation-by-video-densitometry-in-the-setting-of-tavi-echocardiographic-and-clinical-correlates
#2
Mohammad Abdelghani, Hiroki Tateishi, Yosuke Miyazaki, Rafael Cavalcante, Osama I I Soliman, Jan G Tijssen, Robbert J de Winter, Jan Baan, Yoshinobu Onuma, Carlos M Campos, Rogério S Leite, José A Mangione, Alexandre Abizaid, Pedro A Lemos, Fabio S de Brito, Patrick W Serruys
OBJECTIVES: We sought to investigate a new angiographic method for aortic regurgitation (AR) severity assessment in the setting of transcatheter aortic valve implantation (TAVI). BACKGROUND: AR after TAVI is common but challenging to quantitate, especially in the cath-lab. METHODS: In 228 patients, AR was quantitated before and after TAVI by echocardiography and by video-densitometric analysis of aortograms. Contrast time-density curves for the aortic root (the reference region) and the left ventricular outflow tract, LVOT were generated...
January 21, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28100277/stress-echo-2020-the-international-stress-echo-study-in-ischemic-and-non-ischemic-heart-disease
#3
Eugenio Picano, Quirino Ciampi, Rodolfo Citro, Antonello D'Andrea, Maria Chiara Scali, Lauro Cortigiani, Iacopo Olivotto, Fabio Mori, Maurizio Galderisi, Marco Fabio Costantino, Lorenza Pratali, Giovanni Di Salvo, Eduardo Bossone, Francesco Ferrara, Luna Gargani, Fausto Rigo, Nicola Gaibazzi, Giuseppe Limongelli, Giuseppe Pacileo, Maria Grazia Andreassi, Bruno Pinamonti, Laura Massa, Marco A R Torres, Marcelo H Miglioranza, Clarissa Borguezan Daros, José Luis de Castro E Silva Pretto, Branko Beleslin, Ana Djordjevic-Dikic, Albert Varga, Attila Palinkas, Gergely Agoston, Dario Gregori, Paolo Trambaiolo, Sergio Severino, Ayana Arystan, Marco Paterni, Clara Carpeggiani, Paolo Colonna
BACKGROUND: Stress echocardiography (SE) has an established role in evidence-based guidelines, but recently its breadth and variety of applications have extended well beyond coronary artery disease (CAD). We lack a prospective research study of SE applications, in and beyond CAD, also considering a variety of signs in addition to regional wall motion abnormalities. METHODS: In a prospective, multicenter, international, observational study design, > 100 certified high-volume SE labs (initially from Italy, Brazil, Hungary, and Serbia) will be networked with an organized system of clinical, laboratory and imaging data collection at the time of physical or pharmacological SE, with structured follow-up information...
January 18, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28095905/imputing-hiv-treatment-start-dates-from-routine-laboratory-data-in-south-africa-a-validation-study
#4
Mhairi Maskew, Jacob Bor, Cheryl Hendrickson, William MacLeod, Till Bärnighausen, Deenan Pillay, Ian Sanne, Sergio Carmona, Wendy Stevens, Matthew P Fox
BACKGROUND: Poor clinical record keeping hinders health systems monitoring and patient care in many low resource settings. We develop and validate a novel method to impute dates of antiretroviral treatment (ART) initiation from routine laboratory data in South Africa's public sector HIV program. This method will enable monitoring of the national ART program using real-time laboratory data, avoiding the error potential of chart review. METHODS: We developed an algorithm to impute ART start dates based on the date of a patient's "ART workup", i...
January 17, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28095593/automated-face-detection-for-occurrence-and-occupancy-estimation-in-chimpanzees
#5
Anne-Sophie Crunchant, Monika Egerer, Alexander Loos, Tilo Burghardt, Klaus Zuberbühler, Katherine Corogenes, Vera Leinert, Lars Kulik, Hjalmar S Kühl
Surveying endangered species is necessary to evaluate conservation effectiveness. Camera trapping and biometric computer vision are recent technological advances. They have impacted on the methods applicable to field surveys and these methods have gained significant momentum over the last decade. Yet, most researchers inspect footage manually and few studies have used automated semantic processing of video trap data from the field. The particular aim of this study is to evaluate methods that incorporate automated face detection technology as an aid to estimate site use of two chimpanzee communities based on camera trapping...
January 17, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28095321/cellulose-to-depolymerize%C3%A2-or-not-to
#6
REVIEW
Sergiu Coseri
Oxidation of the primary OH groups in cellulose is a pivotal reaction both at lab and industrial scale, leading to the value-added products, i.e. oxidized cellulose which have tremendous applications in medicine, pharmacy and hi-tech industry. Moreover, the introduction of carboxyl moieties creates prerequisites for further cellulose functionalization through covalent attachment or electrostatic interactions, being an essential achievement designed to boost the area of cellulose-based nanomaterials fabrication...
January 15, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28092812/%C3%AE-14-co2-from-dark-respiration-in-plants-and-its-impact-on-the-estimation-of-atmospheric-fossil-fuel-co2
#7
Xiaohu Xiong, Weijian Zhou, Peng Cheng, Shugang Wu, Zhenchuan Niu, Hua Du, Xuefeng Lu, Yunchong Fu, George S Burr
Radiocarbon ((14)C) has been widely used for quantification of fossil fuel CO2 (CO2ff) in the atmosphere and for ecosystem source partitioning studies. The strength of the technique lies in the intrinsic differences between the (14)C signature of fossil fuels and other sources. In past studies, the (14)C content of CO2 derived from plants has been equated with the (14)C content of the atmosphere. Carbon isotopic fractionation mechanisms vary among plants however, and experimental study on fractionation associated with dark respiration is lacking...
January 13, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28092753/immobilization-and-reduction-of-bioavailability-of-lead-in-shooting-range-soil-through-hydrothermal-treatment
#8
Mohammad Nazrul Islam, Jeong-Hun Park
Immobilization of Pb in contaminated soil by hydrothermal treatment (HT) under subcritical conditions was investigated using a lab-scale apparatus. The Pb immobilization was evaluated thorough investigating the transformation of Pb fractions and by single chemical extraction. The results showed that HT and treatment temperature significantly affected the immobilization through redistribution of Pb fractions. The results of bioavailability and eco-toxicity assessment demonstrated a drastic decrease in the bioavailable fraction from 41...
January 13, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28091760/characteristics-of-green-blue-fluorescence-generated-from-the-adaxial-sides-of-leaves-of-tree-species
#9
Masayoshi Nakayama, Tsukasa Iwashina
We discovered that some tree species have leaves whose adaxial sides show bright green-blue fluorescence upon exposure to ultraviolet irradiation. In total, 141 native Japanese species belonging to 47 families were analyzed, and the brightness of the leaf fluorescence, represented by the L* values (Lab color space) of the pictures, was evaluated. The species possessing the brightest fluorescent leaves, with L* > 50, were Camellia japonica, Camellia sasanqua, and Cleyera japonica of Theaceae, Osmanthus heterophyllus and Ligustrum japonicum of Oleaceae, Aucuba japonica of Garryaceae, and Trochodendron aralioides of Trochodendraceae...
January 16, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28089402/aerobic-composting-of-digested-residue-eluted-from-dry-methane-fermentation-to-develop-a-zero-emission-process
#10
Yu-Lian Huang, Zhao-Yong Sun, Xiao-Zhong Zhong, Ting-Ting Wang, Li Tan, Yue-Qin Tang, Kenji Kida
Digested residue remained at the end of a process for the production of fuel ethanol and methane from kitchen garbage. To develop a zero-emission process, the compostability of the digested residue was assessed to obtain an added-value fertilizer. Composting of the digested residue by adding matured compost and a bulking agent was performed using a lab-scale composting reactor. The composting process showed that volatile total solid (VTS) degradation mainly occurred during the first 13days, and the highest VTS degradation efficiency was about 27% at the end...
January 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28088633/quantitative-analysis-of-lab-to-lab-variability-in-caco-2-permeability-assays
#11
Jong Bong Lee, Atheer Zgair, Dhiaa A Taha, Xiaowei Zang, Leonid Kagan, Tae Hwan Kim, Min Gi Kim, Hwi-Yeol Yun, Peter M Fischer, Pavel Gershkovich
In this study, Caco-2 permeability results from different laboratories were compared. Six different sets of apparent permeability coefficient (Papp) values reported in the literature were compared to experimental Papp obtained in our laboratory. The differences were assessed by determining the root mean square error (RMSE) values between the datasets, which reached levels as high as 0.581 for the training set compounds, i.e. ten compounds with known effective human permeability (Peff). The consequences of these differences in Papp for prediction of oral drug absorption were demonstrated by introducing the Papp into the absorption and pharmacokinetics simulation software application GastroPlus(TM) for prediction of the fraction absorbed (Fa) in humans using calibrated "user-defined permeability models"...
January 11, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28087972/lack-of-effect-of-oral-cabotegravir-on-the-pharmacokinetics-of-a-levonorgestrel-ethinyl-estradiol-containing-oral-contraceptive-in-healthy-adult-females
#12
C Trezza, S L Ford, E Gould, Y Lou, C Huang, J M Ritter, A M Buchanan, W Spreen, P Patel
AIM(S): This study aimed to investigate whether cabotegravir (CAB), an integrase inhibitor in development for treatment and prevention of HIV-1, influences the pharmacokinetics (PK) of a levonorgestrel (LNG) and ethinyl estradiol (EE)-containing oral contraceptive (OC) in healthy women. METHODS: In this open-label, fixed-sequence crossover study, healthy female subjects received LNG 0.15 mg/EE 0.03 mg tablet once daily Days 1-10 alone and with oral CAB 30 mg once daily Days 11-21...
January 14, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28078407/-diagnostic-accuracy-of-outpatient-polygraphy-devices-a%C3%A2-comparison-with-inpatient-polysomnography-in-clinical-routine
#13
J Lindemann, B Augenstein, F Stupp, B Saul, M Reichert, R Riepl, F Sommer, A-S Grossi
BACKGROUND: Cardiorespiratory polysomnography (PSG) is considered the reference method for diagnosis of obstructive sleep apnea (OSA). Due to waiting times and high costs, payers increasingly request outpatient polygraphy (PG) as an alternative to inpatient PSG. The aim of the present study was to evaluate the diagnostic accuracy of different outpatient PG devices compared to stationary PSG in clinical practice. MATERIALS AND METHODS: Externally collected outpatient PG findings of 406 patients were retrospectively compared with the corresponding PSG findings...
January 11, 2017: HNO
https://www.readbyqxmd.com/read/28073997/beyond-ageist-attitudes-researchers-call-for-nih-action-to-limit-funding-for-older-academics
#14
Eva Kahana, Michael R Slone, Boaz Kahana, Kaitlyn Barnes Langendoerfer, Courtney Reynolds
PURPOSE: This article explores manifestations of ageism in response to a proposed National Institutes of Health (NIH) Emeritus Grant initiative aimed at funding older investigators. DESIGN AND METHODS: Comments were requested by NIH in 2015, through a Request for Information (RFI) as well as a public blog regarding the merits of a proposed grant mechanism that would help older researchers transfer their labs to junior scientists and transition into retirement. This article reports content analysis of comments from 134 respondents to the blog...
January 9, 2017: Gerontologist
https://www.readbyqxmd.com/read/28071009/evolution-of-free-amino-acids-biogenic-amines-and-n-nitrosoamines-throughout-ageing-in-organic-fermented-beef
#15
Karolina M Wójciak, Elżbieta Solska
BACKGROUND: In recent years, interest in uncured meat products has grown and studies were carried out on the use of substances which could replace nitrites, such as acid whey. In spite of this problem in fermented meat products, there is no information regarding the effects of prolonged ageing on the formation of chemical (nitrosoamines, biogenic amines, secondary lipid oxidation products) and microbiological (L. monocytogenes, S. aureus, OLD) toxicants in fermented beef marinated with acid whey...
April 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28064390/beap-profiles-as-rapid-test-system-for-status-analysis-and-early-detection-of-process-incidents-in-biogas-plants
#16
Sarah Refai, Stefanie Berger, Kati Wassmann, Melanie Hecht, Thomas Dickhaus, Uwe Deppenmeier
A method was developed to quantify the performance of microorganisms involved in different digestion levels in biogas plants. The test system was based on the addition of butyrate (BCON), ethanol (ECON), acetate (ACON) or propionate (PCON) to biogas sludge samples and the subsequent analysis of CH4 formation in comparison to control samples. The combination of the four values was referred to as BEAP profile. Determination of BEAP profiles enabled rapid testing of a biogas plant's metabolic state within 24 h and an accurate mapping of all degradation levels in a lab-scale experimental setup...
January 7, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28061342/a-low-pressure-gravity-driven-membrane-filtration-gdm-system-for-rainwater-recycling-flux-stabilization-and-removal-performance
#17
An Ding, Jinlong Wang, Dachao Lin, Xiaobin Tang, Xiaoxiang Cheng, Hui Wang, Langming Bai, Guibai Li, Heng Liang
Rainwater is a nature resource, which can be widely used for non-potable and potable applications in water scared countries after appropriate treatment. Gravity-driven membrane filtration (GDM) process is a promising technology for decentralized rainwater treatment due to no backwashing, flushing and chemical cleaning. In this study, we established a single lab-scale GDM system for the stored rainwater (simulative cellar rainwater) treatment with two months operation, and a stored tap water was used as a compared system to evaluate the permeability and organics removal performance...
December 27, 2016: Chemosphere
https://www.readbyqxmd.com/read/28059549/rosenbluth-separation-of-the-%C3%AF-0-electroproduction-cross-section
#18
M Defurne, M Mazouz, Z Ahmed, H Albataineh, K Allada, K A Aniol, V Bellini, M Benali, W Boeglin, P Bertin, M Brossard, A Camsonne, M Canan, S Chandavar, C Chen, J-P Chen, C W de Jager, R de Leo, C Desnault, A Deur, L El Fassi, R Ent, D Flay, M Friend, E Fuchey, S Frullani, F Garibaldi, D Gaskell, A Giusa, O Glamazdin, S Golge, J Gomez, O Hansen, D Higinbotham, T Holmstrom, T Horn, J Huang, M Huang, G M Huber, C E Hyde, S Iqbal, F Itard, Ho Kang, Hy Kang, A Kelleher, C Keppel, S Koirala, I Korover, J J LeRose, R Lindgren, E Long, M Magne, J Mammei, D J Margaziotis, P Markowitz, A Martí Jiménez-Argüello, F Meddi, D Meekins, R Michaels, M Mihovilovic, N Muangma, C Muñoz Camacho, P Nadel-Turonski, N Nuruzzaman, R Paremuzyan, A Puckett, V Punjabi, Y Qiang, A Rakhman, M N H Rashad, S Riordan, J Roche, G Russo, F Sabatié, K Saenboonruang, A Saha, B Sawatzky, L Selvy, A Shahinyan, S Sirca, P Solvignon, M L Sperduto, R Subedi, V Sulkosky, C Sutera, W A Tobias, G M Urciuoli, D Wang, B Wojtsekhowski, H Yao, Z Ye, L Zana, X Zhan, J Zhang, B Zhao, Z Zhao, X Zheng, P Zhu
We present deeply virtual π^{0} electroproduction cross-section measurements at x_{B}=0.36 and three different Q^{2} values ranging from 1.5 to 2  GeV^{2}, obtained from Jefferson Lab Hall A experiment E07-007. The Rosenbluth technique is used to separate the longitudinal and transverse responses. Results demonstrate that the cross section is dominated by its transverse component and, thus, is far from the asymptotic limit predicted by perturbative quantum chromodynamics. Nonetheless, an indication of a nonzero longitudinal contribution is provided by the measured interference term σ_{LT}...
December 23, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/28058249/microbiological-and-chemico-physical-shelf-life-and-panel-test-to-evaluate-acceptability-of-liver-mortadella
#19
Erica Tirloni, Simone Stella, Cristian Bernardi, Vittorio Maria Moretti, Carla Bersani, Patrizia Cattaneo
This study aimed to evaluate the shelf life of sliced cooked liver mortadella packaged in MAP (70-85% N2, 15-30% CO2) and stored in refrigeration (4°C) or slight thermal abuse (8°C) for up to 49 days (declared best before date 45 days). The proximate composition, aw nitrites and NaCl content were determined at T0. Weekly, samples were submitted to microbiological [total viable count (TVC), lactic acid bacteria (LAB), Enterobacteriaceae, Escherichia coli, Pseudomonas spp., coagulase positive staphylococci, sulphite reducing clostridia, yeasts and moulds, Listeria monocytogenes and Salmonella spp...
September 20, 2016: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28052319/treatment-and-management-of-chronic-fatigue-syndrome-myalgic-encephalomyelitis-all-roads-lead-to-rome
#20
REVIEW
Jesus Castro-Marrero, Naia Sáez-Francàs, Dafna Santillo, Jose Alegre
This comprehensive review explores the current evidence on benefits and harms of therapeutic interventions in Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) and makes recommendations. CFS/ME is a complex, multi-system, chronic medical condition whose pathophysiology remains unknown. No established diagnostic tests exist; nor are any FDA-approved drugs available for treatment. Because of the range of symptoms of CFS/ME, treatment approaches vary widely. Studies undertaken have heterogeneous designs and are limited by sample size, length of follow-up, applicability and methodological quality...
January 4, 2017: British Journal of Pharmacology
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