keyword
MENU ▼
Read by QxMD icon Read
search

Driving

keyword
https://www.readbyqxmd.com/read/27922217/commentary-learning-from-variations-in-fidelity-of-implementation
#1
Rekha Balu, Fred Doolittle
The articles in this special issue discuss efforts to improve academic reading outcomes for students and ways to achieve high implementation fidelity of promising strategies. At times the authors discuss if-and how-strong fidelity is associated with strong outcomes and potentially even impacts (the difference between program and control group outcomes). We want to explore this theme in two ways: (a) learning from the variation in fidelity to think about potential points of entry and levers for improvement in implementation, and (b) broadening the evaluation focus to include "service contrast" as a factor driving impacts on student outcomes...
December 2016: New Directions for Child and Adolescent Development
https://www.readbyqxmd.com/read/27922181/evaluation-of-gas-and-carbon-transport-in-a-methanogenic-bioelectrochemical-system-bes
#2
Christy M Dykstra, Spyros G Pavlostathis
Bioelectrochemical systems (BESs) may be used to upgrade anaerobic digester biogas by directly converting CO2 to CH4 .The objective of this study was to evaluate gas (N2 , CO2 , CH4 , and H2 ) and carbon transport within a methanogenic BES. Four BES configurations were evaluated: abiotic anode with abiotic cathode (AAn-ACa), bioanode with abiotic cathode (BAn-ACa), abiotic anode with biocathode (AAn-BCa), and bioanode with biocathode (BAn-BCa). Transport of N2 , a gas commonly used for flushing anoxic systems, out of the anode headspace ranged from 3...
December 6, 2016: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/27922015/cryoem-structure-of-the-methanospirillum-hungatei-archaellum-reveals-structural-features-distinct-from-the-bacterial-flagellum-and-type-iv-pili
#3
Nicole Poweleit, Peng Ge, Hong H Nguyen, Rachel R Ogorzalek Loo, Robert P Gunsalus, Z Hong Zhou
Archaea use flagella known as archaella-distinct both in protein composition and structure from bacterial flagella-to drive cell motility, but the structural basis of this function is unknown. Here, we report an atomic model of the archaella, based on the cryo electron microscopy (cryoEM) structure of the Methanospirillum hungatei archaellum at 3.4 Å resolution. Each archaellum contains ∼61,500 archaellin subunits organized into a curved helix with a diameter of 10 nm and average length of 10,000 nm...
December 5, 2016: Nature Microbiology
https://www.readbyqxmd.com/read/27921296/digest-selection-on-life-histories-drives-the-formation-of-functional-mitonuclear-associations1
#4
Edward McAssey
The relative importance of interactions between mitochondrial and nuclear genes on adaptation has gained increased attention (see Wolff et al., 2014), although experimental systems to make direct tests of its importance are scarce. Mitonuclear epistasis is when nuclear and mitochondrial genes interact, often at the protein level, and variation in these interactions may result in phenotypic differences (Paliwal et al., 2014). These interactions are often found in the mitochondria where the energy-generating electron transport chain (ETC) is located, and consists of both nuclear and mitochondrial proteins...
December 6, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27921295/digest-sticklebacks-don-t-just-go-with-the-flow-genetic-differentiation-between-lake-and-stream-populations-due-to-more-than-just-geographic-distance1
#5
Emilie Richards, Aaron Comeault, Jelmer Poelstra
Speciation is thought to occur in large part through the gradual accumulation of genetic differences between partly or completely isolated populations. However, many species differ greatly in their ecology, prompting research into ecology's role in driving genetic differentiation and speciation. Ultimately, understanding diversification requires understanding the factors that allow populations to diverge enough to no longer be considered the same species. This article is protected by copyright. All rights reserved...
December 6, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27921151/free-boundary-problem-for-cell-protrusion-formations-theoretical-and-numerical-aspects
#6
Olivier Gallinato, Masahito Ohta, Clair Poignard, Takashi Suzuki
In this paper, a free boundary problem for cell protrusion formation is studied theoretically and numerically. The cell membrane is precisely described thanks to a level set function, whose motion is due to specific signalling pathways. The aim is to model the chemical interactions between the cell and its environment, in the process of invadopodia or pseudopodia formation. The model consists of Laplace equation with Dirichlet condition inside the cell coupled to Laplace equation with Neumann condition in the outer domain...
December 5, 2016: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/27921017/factors-impacting-mortality-in-the-pre-hospital-period-after-road-traffic-accidents-in-urban-india
#7
Ananthnarayan Chandrasekharan, Aditya J Nanavati, Sandhya Prabhakar, Subramaniam Prabhakar
BACKGROUND: India currently has the dubious distinction of experiencing the highest number of road traffic accidents in the world. OBJECTIVES: We believe that this study on road traffic accidents may help to identify factors in the pre-hospital setting that may influence mortality rates. PATIENTS AND METHODS: A prospective observational study was carried out in a metro area in India over a period of one year. The study included consecutive patients admitted to the trauma service after road traffic accidents...
July 2016: Trauma Monthly
https://www.readbyqxmd.com/read/27921014/fireworks-related-injuries-in-iran-a-survey-following-the-2014-new-year-s-festival-in-tabriz
#8
Samad Shams Vahdati, Jamil Hemmate Gadim, Hossein Mazouchian
BACKGROUND: Iranian people celebrate the last Wednesday eve of the year as Chaharshanbe Suri and use explosives and firecrackers as part of this festival. OBJECTIVES: This study concerned fireworks injuries related to the Chaharshanbe Suri festival in Tabriz, a provincial capital in East Azerbaijan, Iran, to evaluate the epidemiology and provide data to prevent and manage these accidents. PATIENTS AND METHODS: This study was comprised of patients who were treated at the emergency department of Tabriz Sina hospital with burn injuries related to fireworks...
July 2016: Trauma Monthly
https://www.readbyqxmd.com/read/27920978/network-interactions-underlying-mirror-feedback-in-stroke-a-dynamic-causal-modeling-study
#9
Soha Saleh, Mathew Yarossi, Thushini Manuweera, Sergei Adamovich, Eugene Tunik
Mirror visual feedback (MVF) is potentially a powerful tool to facilitate recovery of disordered movement and stimulate activation of under-active brain areas due to stroke. The neural mechanisms underlying MVF have therefore been a focus of recent inquiry. Although it is known that sensorimotor areas can be activated via mirror feedback, the network interactions driving this effect remain unknown. The aim of the current study was to fill this gap by using dynamic causal modeling to test the interactions between regions in the frontal and parietal lobes that may be important for modulating the activation of the ipsilesional motor cortex during mirror visual feedback of unaffected hand movement in stroke patients...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27920939/epigenetic-mechanisms-drive-the-progression-of-neurofibromas-to-malignant-peripheral-nerve-sheath-tumors
#10
REVIEW
Krish Suresh, Tamara Kliot, Andrea Piunti, Michel Kliot
THINKING OUTSIDE THE BOX: The polycomb repressive complex 2 (PRC2) is a histone methyltransferase complex known to repress gene expression. There is a large body of experimental evidence that supports its role in promoting tumorigenicity by suppressing tumor suppressor genes. Here, we discuss the surprising findings that, in neurofibromas, it may have a completely different role as a tumor suppressor; mutations of PRC2 lead to conversion of benign neurofibromas into malignant peripheral nerve sheath tumors (MPNSTs) by de-repressing and thereby activating genes driving cell growth and development...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27920891/working-principle-and-application-of-magnetic-separation-for-biomedical-diagnostic-at-high-and-low-field-gradients
#11
REVIEW
Sim Siong Leong, Swee Pin Yeap, JitKang Lim
Magnetic separation is a versatile technique used in sample preparation for diagnostic purpose. For such application, an external magnetic field is applied to drive the separation of target entity (e.g. bacteria, viruses, parasites and cancer cells) from a complex raw sample in order to ease the subsequent task(s) for disease diagnosis. This separation process not only can be achieved via the utilization of high magnetic field gradient, but also, in most cases, low magnetic field gradient with magnitude less than 100 T m(-1) is equally feasible...
December 6, 2016: Interface Focus
https://www.readbyqxmd.com/read/27920789/transcriptomic-effects-of-the-cell-cycle-regulator-lgo-in-arabidopsis-sepals
#12
Erich M Schwarz, Adrienne H K Roeder
Endoreduplication is a specialized cell cycle in which DNA replication occurs, but mitosis is skipped creating enlarged polyploid cells. Endoreduplication is associated with the differentiation of many specialized cell types. In the Arabidopsis thaliana sepal epidermis endoreduplicated giant cells form interspersed between smaller cells. Both the transcription factor Arabidopsis thaliana MERISTEM LAYER1 (ATML1) and the plant-specific cyclin dependent kinase inhibitor LOSS OF GIANT CELLS FROM ORGANS (LGO)/SIAMESE RELATED1 (SMR1) are required for the formation of giant cells...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27920772/streptococcus-thermophilus-apc151-strain-is-suitable-for-the-manufacture-of-naturally-gaba-enriched-bioactive-yogurt
#13
Daniel M Linares, Tom F O'Callaghan, Paula M O'Connor, R P Ross, Catherine Stanton
Consumer interest in health-promoting food products is a major driving force for the increasing global demand of functional (probiotic) dairy foods. Yogurt is considered the ideal medium for delivery of beneficial functional ingredients. Gamma-amino-butyric acid has potential as a bioactive ingredient in functional foods due to its health-promoting properties as an anti-stress, anti-hypertensive, and anti-diabetic agent. Here, we report the use of a novel Streptococcus thermophilus strain, isolated from the digestive tract of fish, for production of yogurt naturally enriched with 2 mg/ml of gamma-amino-butyric acid (200 mg in a standard yogurt volume of 100 ml), a dose in the same range as that provided by some commercially available gamma-amino-butyric acid supplements...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27920673/editorial-dialogues-in-music-therapy-and-music-neuroscience-collaborative-understanding-driving-clinical-advances
#14
EDITORIAL
Julian O'Kelly, Jörg C Fachner, Mari Tervaniemi
No abstract text is available yet for this article.
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27920670/two-visual-pathways-in-primates-based-on-sampling-of-space-exploitation-and-exploration-of-visual-information
#15
Bhavin R Sheth, Ryan Young
Evidence is strong that the visual pathway is segregated into two distinct streams-ventral and dorsal. Two proposals theorize that the pathways are segregated in function: The ventral stream processes information about object identity, whereas the dorsal stream, according to one model, processes information about either object location, and according to another, is responsible in executing movements under visual control. The models are influential; however recent experimental evidence challenges them, e.g., the ventral stream is not solely responsible for object recognition; conversely, its function is not strictly limited to object vision; the dorsal stream is not responsible by itself for spatial vision or visuomotor control; conversely, its function extends beyond vision or visuomotor control...
2016: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/27920439/activity-targets-for-nanostructured-platinum-group-metal-free-catalysts-in-hydroxide-exchange-membrane-fuel-cells
#16
Brian P Setzler, Zhongbin Zhuang, Jarrid A Wittkopf, Yushan Yan
Fuel cells are the zero-emission automotive power source that best preserves the advantages of gasoline automobiles: low upfront cost, long driving range and fast refuelling. To make fuel-cell cars a reality, the US Department of Energy has set a fuel cell system cost target of US$30 kW(-1) in the long-term, which equates to US$2,400 per vehicle, excluding several major powertrain components (in comparison, a basic, but complete, internal combustion engine system costs approximately US$3,000). To date, most research for automotive applications has focused on proton exchange membrane fuel cells (PEMFCs), because these systems have demonstrated the highest power density...
December 6, 2016: Nature Nanotechnology
https://www.readbyqxmd.com/read/27920388/human-drivers-of-ecological-and-evolutionary-dynamics-in-emerging-and-disappearing-infectious-disease-systems
#17
REVIEW
Mary A Rogalski, Camden D Gowler, Clara L Shaw, Ruth A Hufbauer, Meghan A Duffy
Humans have contributed to the increased frequency and severity of emerging infectious diseases, which pose a significant threat to wild and domestic species, as well as human health. This review examines major pathways by which humans influence parasitism by altering (co)evolutionary interactions between hosts and parasites on ecological timescales. There is still much to learn about these interactions, but a few well-studied cases show that humans influence disease emergence every step of the way. Human actions significantly increase dispersal of host, parasite and vector species, enabling greater frequency of infection in naive host populations and host switches...
January 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/27920383/effects-of-fragmentation-on-plant-adaptation-to-urban-environments
#18
Jonathan Dubois, Pierre-Olivier Cheptou
Urban ecosystems are relatively recent and heavily human-altered terrestrial ecosystems with a surprisingly high diversity of animals, plants and other organisms. Urban habitats are also strongly fragmented and subject to higher temperatures, providing a compelling model for studying adaptation to global change. Crepis sancta (Asteraceae), an annual Mediterranean wasteland weed, occupies fragmented urban environments as well as certain unfragmented landscapes in southern France. We tested for shifts in dispersal, reproductive traits and size across a rural-urban gradient to learn whether and how selection may be driving changes in life history in urban and fragmented habitats...
January 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/27920381/harvest-induced-evolution-insights-from-aquatic-and-terrestrial-systems
#19
REVIEW
Anna Kuparinen, Marco Festa-Bianchet
Commercial and recreational harvests create selection pressures for fitness-related phenotypic traits that are partly under genetic control. Consequently, harvesting can drive evolution in targeted traits. However, the quantification of harvest-induced evolutionary life history and phenotypic changes is challenging, because both density-dependent feedback and environmental changes may also affect these changes through phenotypic plasticity. Here, we synthesize current knowledge and uncertainties on six key points: (i) whether or not harvest-induced evolution is happening, (ii) whether or not it is beneficial, (iii) how it shapes biological systems, (iv) how it could be avoided, (v) its importance relative to other drivers of phenotypic changes, and (vi) whether or not it should be explicitly accounted for in management...
January 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/27920378/the-eco-evolutionary-impacts-of-domestication-and-agricultural-practices-on-wild-species
#20
REVIEW
Martin M Turcotte, Hitoshi Araki, Daniel S Karp, Katja Poveda, Susan R Whitehead
Agriculture is a dominant evolutionary force that drives the evolution of both domesticated and wild species. However, the various mechanisms of agriculture-induced evolution and their socio-ecological consequences are not often synthetically discussed. Here, we explore how agricultural practices and evolutionary changes in domesticated species cause evolution in wild species. We do so by examining three processes by which agriculture drives evolution. First, differences in the traits of domesticated species, compared with their wild ancestors, alter the selective environment and create opportunities for wild species to specialize...
January 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
keyword
keyword
19105
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"