keyword
MENU ▼
Read by QxMD icon Read
search

life cycle testing

keyword
https://www.readbyqxmd.com/read/28447491/mobile-communication-jacket-for-people-with-severe-speech-impairment
#1
Renée Lampe, Tobias Blumenstein, Varvara Turova, Ana Alves-Pinto
PURPOSE: Cerebral palsy is a movement disorder caused by damage to motor control areas of the developing brain during early childhood. Motor disorders can also affect the ability to produce clear speech and to communicate. The aim of this study was to develop and to test a prototype of an assistive tool with an embedded mobile communication device to support patients with severe speech impairments. METHODS: A prototype was developed by equipping a cycling jacket with a display, a small keyboard, a LED and an alarm system, all controlled by a microcontroller...
April 27, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28446445/susceptibility-testing-of-medically-important-parasites
#2
REVIEW
Abebe Genetu Bayih, Anjan Debnath, Edward Mitre, Christopher D Huston, Benoît Laleu, Didier Leroy, Benjamin Blasco, Brice Campo, Timothy N C Wells, Paul A Willis, Peter Sjö, Wesley C Van Voorhis, Dylan R Pillai
In the last 2 decades, renewed attention to neglected tropical diseases (NTDs) has spurred the development of antiparasitic agents, especially in light of emerging drug resistance. The need for new drugs has required in vitro screening methods using parasite culture. Furthermore, clinical laboratories sought to correlate in vitro susceptibility methods with treatment outcomes, most notably with malaria. Parasites with their various life cycles present greater complexity than bacteria, for which standardized susceptibility methods exist...
July 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/28442076/exercise-training-for-people-following-curative-intent-treatment-for-non-small-cell-lung-cancer-a-randomized-controlled-trial
#3
Vinicius Cavalheri, Sue Jenkins, Nola Cecins, Kevin Gain, Martin J Phillips, Lucas H Sanders, Kylie Hill
OBJECTIVE: In people following curative intent treatment for non-small cell lung cancer, to investigate the effects of supervised exercise training on exercise capacity, physical activity and sedentary behavior, peripheral muscle force, health-related quality of life, fatigue, feelings of anxiety and depression, and lung function. METHOD: This pilot randomized controlled trial included participants 6-10 weeks after lobectomy for non-small cell lung cancer or, for those who required adjuvant chemotherapy, 4-8 weeks after their last cycle...
January 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28440567/dawson-type-polyoxomolybdate-anions-p2mo18o626-captured-by-ionic-liquid-on-graphene-oxide-as-high-capacity-anode-material-for-lithium-ion-batteries
#4
Yu-Fei Song, Jun Hu, Hongling Diao, Wenjing Luo
The development of advanced anode materials is of significance for the next generation of lithium ion batteries (LIBs). Herein, the imidazolium-based ionic liquids (ILs) was covalently grafted on the surface of graphene oxides (GO) via the carboxyl-amino bond,providing a loading hotbed for the Dawson-type POM of (NH4)6P2Mo18O62 (denoted as P2Mo18). The as-prepared GO-IL-P2Mo18 nanocomposite was characterized by FT-IR, Raman, TGA, SEM, TEM and XPS. When the nanocomposite was used as the anode material for lithium ion batteries (LIBs), it showed a high reversible capacity of 903...
April 25, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28434560/accelerated-fatigue-testing-of-dentin-composite-bond-with-continuously-increasing-load
#5
Kai Li, Jiawen Guo, Yuping Li, Young Cheul Heo, Jihua Chen, Haitao Xin, Alex Fok
OBJECTIVES: The aim of this study was to evaluate an accelerated fatigue test method that used a continuously increasing load for testing the dentin-composite bond strength. METHODS: Dentin-composite disks (ϕ5mm×2mm) made from bovine incisor roots were subjected to cyclic diametral compression with a continuously increasingly load amplitude. Two different load profiles, linear and nonlinear with respect to the number of cycles, were considered. The data were then analyzed by using a probabilistic failure model based on the Weakest-Link Theory and the classical stress-life function, before being transformed to simulate clinical data of direct restorations...
April 20, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28427837/in-vitro-fatigue-tests-and-in-silico-finite-element-analysis-of-dental-implants-with-different-fixture-abutment-joint-types-using-computer-aided-design-models
#6
Satoshi Yamaguchi, Yasufumi Yamanishi, Lucas S Machado, Shuji Matsumoto, Nick Tovar, Paulo G Coelho, Van P Thompson, Satoshi Imazato
PURPOSE: The aim of this study was to evaluate fatigue resistance of dental fixtures with two different fixture-abutment connections by in vitro fatigue testing and in silico three-dimensional finite element analysis (3D FEA) using original computer-aided design (CAD) models. METHODS: Dental implant fixtures with external connection (EX) or internal connection (IN) abutments were fabricated from original CAD models using grade IV titanium and step-stress accelerated life testing was performed...
April 17, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28422294/antiviral-activity-of-exopolysaccharides-from-arthrospira-platensis-against-koi-herpesvirus
#7
M Reichert, S M Bergmann, J Hwang, R Buchholz, C Lindenberger
Although koi herpesvirus (KHV) has a history of causing severe economic losses in common carp and koi farms, there are still no treatments available on the market. Thus, the aim of this study was to test exopolysaccharides (EPS) for its antiviral activity against KHV, by monitoring inhibition and cytotoxic effects in common carp brain cells. These substances can be easily extracted from extracellular algae supernatant and were identified as groups of sulphated polysaccharides. In order to reach this aim, Arthrospira platensis, which is well known for its antiviral activity of intra- and extracellular compounds towards mammalian herpesviruses, was investigated as standard organism and compared to commercial antiviral drug, ganciclovir, which inhibits the viral DNA polymerization...
April 19, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28420390/a-novel-viewrna-in-situ-hybridization-method-for-the-detection-of-the-dynamic-distribution-of-classical-swine-fever-virus-rna-in-pk15-cells
#8
COMPARATIVE STUDY
Qianyi Zhang, Lu Xu, Yujie Zhang, Tuanjie Wang, Xingqi Zou, Yuanyuan Zhu, Yan Zhao, Cui Li, Kai Chen, Yongfang Sun, Junxiang Sun, Qizu Zhao, Qin Wang
BACKGROUND: Classical swine fever (CSF) is a highly contagious fatal infectious disease caused by classical swine fever virus (CSFV). A better understanding of CSFV replication is important for the study of pathogenic mechanism of CSF. With the development of novel RNA in situ Hybridization method, quantitatively localization and visualization of the virus RNA molecular in cultured cell or tissue section becomes very important tool to address these pivotal pathogenic questions. In this study, we established ViewRNA ISH method to reveal the dynamic distribution of CSFV RNA in PK15 cells...
April 18, 2017: Virology Journal
https://www.readbyqxmd.com/read/28418381/sparse-panicle1-is-required-for-inflorescence-development-in-setaria-viridis-and-maize
#9
Pu Huang, Hui Jiang, Chuanmei Zhu, Kerrie Barry, Jerry Jenkins, Laura Sandor, Jeremy Schmutz, Mathew S Box, Elizabeth A Kellogg, Thomas P Brutnell
Setaria viridis is a rapid-life-cycle model panicoid grass. To identify genes that may contribute to inflorescence architecture and thus have the potential to influence grain yield in related crops such as maize, we conducted an N-nitroso-N-methylurea (NMU) mutagenesis of S. viridis and screened for visible inflorescence mutant phenotypes. Of the approximately 2,700 M2 families screened, we identified four recessive sparse panicle mutants (spp1-spp4) characterized by reduced and uneven branching of the inflorescence...
April 18, 2017: Nature Plants
https://www.readbyqxmd.com/read/28412902/nanosafety-towards-safer-nanoparticles-by-design
#10
Neus G Bastús, Víctor Puntes
The continuous development of Nanotechnology is progressively introducing nanoparticles into society. However, little is known about the safety of nanoparticles and functions of engineered nanomaterials, in particular how the physicochemical properties of the materials relate to mechanisms of injury at the nano-bio interface. While comprehensive knowledge on the potential toxicity of NPs is still lacking, as time goes by and research in the field continues, different aspects, such as interactions with the immune system, perturbation of cellular membranes, transportation of toxic moieties and others are emerging as potentially hazardous aspects of NPs...
April 13, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28410285/comorbidities-in-patients-with-chronic-obstructive-pulmonary-disease-and-pulmonary-rehabilitation-outcomes
#11
Pichapong Tunsupon, Ashima Lal, Mohammed Abo Khamis, M Jeffery Mador
PURPOSE: The objective of this study was to evaluate the impact of comorbidities as potential predictors of the response to pulmonary rehabilitation in patients with chronic obstructive pulmonary disease (COPD). METHODS: The study included 165 patients with COPD with exercise limitations. Comorbidity was classified as cardiac, metabolic, orthopedic, behavioral health problems, or other diseases. Number of comorbidities was grouped as 0, 1, or ≥2. Outcomes were defined as improvement in exercise capacity (maximal exercise capacity, 6-minute walk test, and constant workload cycle exercise duration) and quality of life (Chronic Respiratory Questionnaire)...
April 12, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28408800/rutin-protects-against-neuronal-damage-in-vitro-and-ameliorates-doxorubicin-induced-memory-deficits-in-vivo-in-wistar-rats
#12
Grandhi Venkata Ramalingayya, Sri Pragnya Cheruku, Pawan G Nayak, Anoop Kishore, Rekha Shenoy, Chamallamudi Mallikarjuna Rao, Nandakumar Krishnadas
Doxorubicin (DOX) is the most widely used broad-spectrum anticancer agent, either alone or in combination, for most cancers including breast cancer. Long-term use of chemotherapeutic agents to treat breast cancer patients results in cognitive complications with a negative impact on survivors' quality of life. The study objective was to evaluate rutin (RUT) for its neuroprotective effect against DOX in human neuroblastoma (IMR32) cells in vitro and study its potential to ameliorate DOX-induced cognitive dysfunction in Wistar rats...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28407539/the-single-and-joint-toxicity-effects-of-chlorpyrifos-and-beta-cypermethrin-in-zebrafish-danio-rerio-early-life-stages
#13
Jiayu Zhang, Lili Liu, Lei Ren, Weimin Feng, Peng Lv, Wei Wu, Yanchun Yan
Water environment pollution caused by the widespread application of beta-cypermethrin (BCP) and chlorpyrifos (CPF) in agriculture has attracted extensive concern of the world. In this study, zebrafish was used as a model to investigate the individual and joint toxicity of BCP and CPF. In the acute toxicity test, 3 hpf embryos were exposed to various concentrations of CPF, BCP and their binary mixtures (MIX) for 96h. The results indicated that these two pesticides and mixtures induced malformation and death in larvae, and affected hatchability...
March 27, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28403243/within-season-variability-of-fighting-behaviour-in-an-australian-alpine-grasshopper
#14
Giselle Muschett, Kate D L Umbers, Marie E Herberstein
Throughout the breeding season, changing environmental and biological conditions can lead to variation in the reproductive landscape of many species. In alpine environments temperature is a key driver of behaviour for small ectotherms such as insects, but variable biotic factors such as mate quality and availability can also influence behaviour. Kosicuscola tristis is a small semelparous grasshopper of the Australian alpine region. In a rare behaviour among grasshoppers, K. tristis males engage in vigorous fights over access to females, involving mandible displays, kicking, biting and grappling...
2017: PloS One
https://www.readbyqxmd.com/read/28397144/a-bird-in-the-hand-versus-two-in-the-bush-the-specialist-leafhopper-dalbulus-maidis-hemiptera-cicadellidae-does-not-discriminate-against-sub-optimal-host-plants-zea-spp
#15
E Bellota, A Dávila-Flores, J S Bernal
The corn leafhopper [Dalbulus maidis (DeLong & Wolcott)] is a specialist on Zea (Poaceae) that coevolved with maize (Zea mays mays) and its teosinte (Zea spp.) relatives. This study tested the hypothesis that host acceptance by females varies among Zea hosts, and is correlated with variation in defensive levels across those hosts. Prior studies revealed differences in plant defenses among Zea hosts and corresponding differences in corn leafhopper performance. Thus, host acceptance was expected to be correlated with defensive levels and offspring performance across Zea hosts, following the hypothesis that offspring performance mediates host preference...
April 10, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28395863/a-full-life-cycle-bioassay-with-cantareus-aspersus-shows-reproductive-effects-of-a-glyphosate-based-herbicide-suggesting-potential-endocrine-disruption
#16
Coline Druart, Frédéric Gimbert, Renaud Scheifler, Annette de Vaufleury
A full life-cycle (240 days) bioassay using the terrestrial snail, Cantareus aspersus, allowing exposure during embryogenesis and/or the growth and reproduction phases, was used to assess the effects of Bypass(®), a glyphosate-based herbicide (GlyBH), on a range of endpoints, including parameters under endocrine control. As a positive control, a mixture (R-A) made of diquat (Reglone(®)) and nonylphenols (NP, Agral(®)), known for its endocrine disrupting effects in other organisms, was tested. At environmental concentrations, both pesticides (R-A mixture and GlyBH) enhanced growth but reduced reproduction...
April 7, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28395636/ttk-chitra-tilting-disc-heart-valve-model-tc2-an-assessment-of-fatigue-life-and-durability
#17
N N Subhash, Adathala Rajeev, Sreedharan Sujesh, C V Muraleedharan
Average age group of heart valve replacement in India and most of the Third World countries is below 30 years. Hence, the valve for such patients need to be designed to have a service life of 50 years or more which corresponds to 2000 million cycles of operation. The purpose of this study was to assess the structural performance of the TTK Chitra tilting disc heart valve model TC2 and thereby address its durability. The TC2 model tilting disc heart valves were assessed to evaluate the risks connected with potential structural failure modes...
April 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28394844/implant-material-type-of-fixation-at-the-shaft-and-position-of-plate-modify-biomechanics-of-distal-femur-plate-osteosynthesis
#18
Utku Kandemir, Peter Augat, Stefanie Konowalczyk Dipl-Ing, Felix Wipf Dipl-Ing, Geert von Oldenburg Dipl-Ing, Ulf Schmidt
OBJECTIVES: The purpose of this study is to investigate whether 1. the type of fixation at the shaft (hybrid vs. locking), 2. the position of the plate (offset vs. contact) and 3. the implant material has a significant effect on a) construct stiffness and b) fatigue life in a distal femur extraarticular comminuted fracture model using the same design of distal femur periarticular locking plate. METHODS: An extraarticular severely comminuted distal femoral fracture pattern (AO/OTA 33-A3) was simulated using artificial bone substitutes...
April 7, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28390646/first-line-management-of-metastatic-castrate-resistant-prostate-cancer-patients-audit-of-real-life-practices
#19
Anthony Turpin, David Pasquier, Christophe Massard, Jean-François Berdah, Stéphane Culine, Nicolas Penel
BACKGROUND: No reliable guidelines are available for choosing the best option between docetaxel and new hormonal therapies (NHTs) (i.e., abiraterone and enzalutamide) in first-line therapy for metastatic castration-resistant prostate cancer (mCRPC) patients. We performed an audit of real-life practices. METHODS: We built an online questionnaire and distributed it with the help of French oncology networks. This questionnaire was sent to 481 physicians who treat patients with mCRPC...
April 5, 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28386199/dynamic-population-artificial-bee-colony-algorithm-for-multi-objective-optimal-power-flow
#20
Man Ding, Hanning Chen, Na Lin, Shikai Jing, Fang Liu, Xiaodan Liang, Wei Liu
This paper proposes a novel artificial bee colony algorithm with dynamic population (ABC-DP), which synergizes the idea of extended life-cycle evolving model to balance the exploration and exploitation tradeoff. The proposed ABC-DP is a more bee-colony-realistic model that the bee can reproduce and die dynamically throughout the foraging process and population size varies as the algorithm runs. ABC-DP is then used for solving the optimal power flow (OPF) problem in power systems that considers the cost, loss, and emission impacts as the objective functions...
March 2017: Saudi Journal of Biological Sciences
keyword
keyword
54457
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"