keyword
MENU ▼
Read by QxMD icon Read
search

special forces

keyword
https://www.readbyqxmd.com/read/28095763/effect-of-socks-structures-on-plantar-dynamic-pressure-distribution
#1
Zeynab Soltanzadeh, Saeed Shaikhzadeh Najar, M Haghpanahi, M R Mohajeri-Tehrani
A major purpose of investigating the plantar pressure in patients with pain or those at risk for skin injury is to reduce the pressure below metatarsal heads, specially first and second metatarsal heads. The aim of this article is to evaluate the effects of the socks structures on the changes in plantar dynamic pressure. In this study, seven socks types with different structures for the sole area were produced. The Gaitview(®) AFA-50 system, a force plate, was used to measure the plantar dynamic pressure of 10 participants...
November 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28094390/simultaneous-measurement-of-the-young-s-modulus-and-the-poisson-ratio-of-thin-elastic-layers
#2
Wolfgang Gross, Holger Kress
The behavior of cells and tissue is greatly influenced by the mechanical properties of their environment. For studies on the interactions between cells and soft matrices, especially those applying traction force microscopy the characterization of the mechanical properties of thin substrate layers is essential. Various techniques to measure the elastic modulus are available. Methods to accurately measure the Poisson ratio of such substrates are rare and often imply either a combination of multiple techniques or additional equipment which is not needed for the actual biological studies...
January 17, 2017: Soft Matter
https://www.readbyqxmd.com/read/28089989/rhoa-regulates-actin-network-dynamics-during-apical-surface-emergence-in-multiciliated-epithelial-cells
#3
Jakub Sedzinski, Edouard Hannezo, Fan Tu, Maté Biro, John B Wallingford
Homeostatic replacement of epithelial cells from basal precursors is a multistep process involving progenitor cell specification, radial intercalation and, finally, apical surface emergence. Recent data demonstrate that actin-based pushing under the control of the formin protein Fmn1 drives apical emergence in nascent multiciliated epithelial cells (MCCs), but little else is known about this actin network or the control of Fmn1. Here, we explore the role of the small GTPase RhoA in MCC apical emergence. Disruption of RhoA function reduced the rate of apical surface expansion and decreased the final size of the apical domain...
January 15, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28081481/fatigue-limits-of-different-peek-materials-for-dental-implants
#4
Andreas Dominik Schwitalla, Tycho Zimmermann, Tobias Spintig, Ilona Kallage, Wolf-Dieter Müller
The increasing use of PEEK (poly-ether-ether-ketone) as a substitute for metal implant components has led to the suggestion that it could also be used as an alternative to titanium in the field of dental implants. A major requirement for dental implant materials is their resistance to cyclic loading due to mastication. A special fatigue test was designed to evaluate the elastic behavior and long-term form stability of cylindrically shaped PEEK specimens of 4, 5 and 6mm in diameter, using 11 different PEEK materials of various grades: unfilled, filled with titanium dioxide or barium sulfate powder, reinforced with short carbon fibers or short glass fibers, and reinforced with continuous carbon fibers...
December 23, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28074346/actively-negotiating-the-mind-body-divide-how-clozapine-treated-schizophrenia-patients-make-health-for-themselves
#5
Julia E H Brown, Simone Dennis
It is well recognised that antipsychotic treatments impact the whole body, not just the target area of the brain. For people with refractory schizophrenia on clozapine, the gold standard antipsychotic treatment in England and Australia, the separation of mental and physical regimes of health is particularly pronounced, resulting in multiple, compartmentalised treatment registers. Clinicians often focus on the mental health aspects of clozapine use, using physical indicators to determine whether treatment can continue...
January 10, 2017: Culture, Medicine and Psychiatry
https://www.readbyqxmd.com/read/28073045/adhesive-barnacle-peptides-exhibit-a-steric-driven-design-rule-to-enhance-adhesion-between-asymmetric-surfaces
#6
Sangeetha Raman, Lukas Malms, Thomas Utzig, Buddha Ratna Shrestha, Philipp Stock, Shankar Krishnan, Markus Valtiner
Barnacles exhibit superior underwater adhesion simply through sequencing of the 21 proteinogenic amino acids, without post processing or using special amino acids. Here, we measure and discuss the molecular interaction of two distinct and recurring short peptide sequences (Bp1 and Bp2) inspired from the surface binding 19kDa protein from the barnacle attachment interface. Using self-assembled monolayer (SAMs) of known physical and chemical properties on molecularly smooth gold substrates in 5mM NaCl at pH 7...
December 26, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28069460/epilepsy-and-exercise-an-experimental-study-in-female-rats
#7
Diego Vannucci Campos, Glauber Menezes Lopim, Daiana Aparecida da Silva, Alexandre Aparecido de Almeida, Debora Amado, Ricardo Mario Arida
OBJECTIVE: Epilepsy is the most common neurological chronic condition worldwide, affecting about 2% of world population. Temporal lobe epilepsy (TLE) reaches 40% of all cases of this condition, and it is highly refractory to pharmacological treatment. Physical activity has been suggested as complementary therapy for epilepsy. However, there is no consistent information whether all these effects are plenty applicable to females, since clinical and experimental studies concerning physical exercise and epilepsy are largely performed in males...
January 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28069316/-hyaluronic-acid-rheology-basics-and-clinical-applications-in-facial-rejuvenation
#8
R Billon, B Hersant, J P Meningaud
Hyaluronic acid (HA) is the most widely used dermal filler to treat facial volume deficits and winkles specially for facial rejuvenation. Depending on various areas of the face, filler is exposed to two different forces (shear deformation and compression/stretching forces) resulting from intrinsec and external mechanical stress. The purpose of this technical note is to explain how rheology, which is the study of the flow and deformation of matter under strains, can be used in our clinical practice of facial volumization with fillers...
January 6, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/28066693/society-of-pediatric-psychology-workforce-survey-development-of-survey-methods-sample-characteristics-and-lessons-learned
#9
Tim Wysocki, Cheryl L Brosig, Marisa E Hilliard
There are few detailed workforce studies of specialty fields within professional psychology, and none have been reported for pediatric psychology since 2006. Availability of such data could facilitate more-informed decision making by students and trainees, psychologists pursuing employment opportunities, and psychologists involved in employment or compensation negotiations. This article describes the work of a task force of the American Psychological Association (APA) Division 54 (Society of Pediatric Psychology) in the design, construction, pretesting, distribution, and data management for the Society of Pediatric Psychology (SPP) Workforce Survey...
March 2016: Clinical Practice in Pediatric Psychology
https://www.readbyqxmd.com/read/28063436/the-many-body-expansion-combined-with-neural-networks
#10
Kun Yao, John E Herr, John Parkhill
Fragmentation methods such as the many-body expansion (MBE) are a common strategy to model large systems by partitioning energies into a hierarchy of decreasingly significant contributions. The number of calculations required for chemical accuracy is still prohibitively expensive for the ab initio MBE to compete with force field approximations for applications beyond single-point energies. Alongside the MBE, empirical models of ab initio potential energy surfaces have improved, especially non-linear models based on neural networks (NNs) which can reproduce ab initio potential energy surfaces rapidly and accurately...
January 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28061956/special-issue-biomolecular-forces
#11
EDITORIAL
Matthias Rief, Daniel J Müller
No abstract text is available yet for this article.
January 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28046974/su-g-jep3-08-robotic-system-for-ultrasound-tracking-in-radiation-therapy
#12
I Kuhlemann, P Jauer, A Schweikard, F Ernst
PURPOSE: For safe and accurate real-time tracking of tumors for IGRT using 4D ultrasound, it is necessary to make use of novel, high-end force-sensitive lightweight robots designed for human-machine interaction. Such a robot will be integrated into an existing robotized ultrasound system for non-invasive 4D live tracking, using a newly developed real-time control and communication framework. METHODS: The new KUKA LWR iiwa robot is used for robotized ultrasound real-time tumor tracking...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045157/decoupling-of-viscosity-and-relaxation-processes-in-supercooled-water-a-molecular-dynamics-study-with-the-tip4p-2005f-model
#13
Emmanuel Guillaud, Samy Merabia, Dominique de Ligny, Laurent Joly
During the last few decades, many experimental and numerical studies have tried to understand the special dynamics of water at low temperatures by measuring structural relaxation times or shear viscosity, but their conclusions strongly depended on the chosen observable and on the range of temperatures considered. Moreover, recent work [J. Chem. Phys. 2013, 138, 12A526] showed that viscosity and relaxation times could decouple at low temperature in a model binary mixture, raising questions on their equivalence to study supercooled water...
January 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28041818/-prevention-and-nursing-care-in-the-first-case-of-ebola-virus-disease-contracted-outside-africa
#14
Alicia Cerón-Serrano, Rafael Jiménez-Castellano, Ana María Gómez-Campos
After the evacuation from Africa to Western hospitals of several international workers with the Ebola virus disease, the first case of contagion outside Africa occurred in Madrid, Spain. A nursing care assistant who had attended a missionary repatriated from Sierra Leone contracted the disease. On October 7(th) 2014, the patient arrived at the University Hospital La Paz-Carlos III in Madrid. She remained in the hospital for 30 days, 25 of which were in strict isolation in a negative pressure room with air lock anteroom; personal protective equipment was required...
December 29, 2016: Enfermería Clínica
https://www.readbyqxmd.com/read/28038681/nanostructured-scaffold-as-a-determinant-of-stem-cell-fate
#15
REVIEW
Lekshmi Krishna, Kamesh Dhamodaran, Chaitra Jayadev, Kaushik Chatterjee, Rohit Shetty, S S Khora, Debashish Das
The functionality of stem cells is tightly regulated by cues from the niche, comprising both intrinsic and extrinsic cell signals. Besides chemical and growth factors, biophysical signals are important components of extrinsic signals that dictate the stem cell properties. The materials used in the fabrication of scaffolds provide the chemical cues whereas the shape of the scaffolds provides the biophysical cues. The effect of the chemical composition of the scaffolds on stem cell fate is well researched. Biophysical signals such as nanotopography, mechanical forces, stiffness of the matrix, and roughness of the biomaterial influence the fate of stem cells...
December 30, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28035948/fiber-optic-fabry-p%C3%A3-rot-interferometers-for-axial-force-sensing-on-the-tip-of-a-needle
#16
Steven Beekmans, Thomas Lembrechts, John van den Dobbelsteen, Dennis van Gerwen
A range of complex percutaneous procedures, such as biopsy or regional anesthesia, rely heavily on accurate needle insertion. Small variations in the mechanical properties of the pierced tissue can however cause deviations from the projected needle path and can thus result in inaccurate placement of the needle. Navigation of a rigid needle towards the target tissue is traditionally based on the surgeons capacity to interpret small variations in the needle insertion force. A more accurate measurement of these small force variations enables improvement in needle targeting, can potentially aid in enhancing force feedback in robotic needle placement and can provide valuable information on tissue-tool interaction...
December 26, 2016: Sensors
https://www.readbyqxmd.com/read/28028379/exploration-is-dependent-on-reproductive-state-not-social-state-in-a-cooperatively-breeding-bird
#17
Hannah A Edwards, Hannah L Dugdale, David S Richardson, Jan Komdeur, Terry Burke
Personality is an intriguing phenomenon in populations because it constrains behavioral flexibility. One theory suggests that personality could be generated and maintained if dependent on asset protection. It is predicted that trade-offs with fitness expectations and survival probability encourage consistent behavioral differences among individuals (personality). Although not mutually exclusive, the social niche specialization hypothesis suggests that a group of individuals that repeatedly interact will develop personality to avoid costly social conflict...
November 2016: Behavioral Ecology: Official Journal of the International Society for Behavioral Ecology
https://www.readbyqxmd.com/read/28028232/two-independent-s-phase-checkpoints-regulate-appressorium-mediated-plant-infection-by-the-rice-blast-fungus-magnaporthe-oryzae
#18
Míriam Osés-Ruiz, Wasin Sakulkoo, George R Littlejohn, Magdalena Martin-Urdiroz, Nicholas J Talbot
To cause rice blast disease, the fungal pathogen Magnaporthe oryzae develops a specialized infection structure called an appressorium. This dome-shaped, melanin-pigmented cell generates enormous turgor and applies physical force to rupture the rice leaf cuticle using a rigid penetration peg. Appressorium-mediated infection requires septin-dependent reorientation of the F-actin cytoskeleton at the base of the infection cell, which organizes polarity determinants necessary for plant cell invasion. Here, we show that plant infection by M...
January 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28028086/extending-the-ecology-of-fear-beyond-prey-reciprocal-nonconsumptive-effects-among-competing-aphid-predators
#19
J P Michaud, Paulo R R Barbosa, Clint L Bain, Jorge B Torres
Nonconsumptive effects of predators on prey are well known, but similar effects among competing predators are not. Aphidophagous insect larvae are notorious for cannibalism and intraguild predation, as they compete for aggregated but ephemeral prey. We tested for indirect effects of competitors on the development of Coleomegilla maculata DeGeer and Hippodamia convergens Guerin-Meneville (Coleoptera: Coccinellidae), and a green lacewing, Chrysoperla carnea Stephens (Neuroptera: Chrysopidae), with all larvae reared on eggs of Ephestia kuehniella Zeller (Lepidoptera: Pyralidae)...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28019638/the-extracellular-bacterial-htra-proteins-as-potential-therapeutic-targets-and-vaccine-candidates
#20
Joanna Skórko-Glonek, Donata Figaj, Urszula Zarzecka, Tomasz Przepiora, Joanna Renke, Barbara Lipinska
BACKGROUND: An increasing resistance of bacteria to the commonly used antimicrobials forces to search for alternative or supportive ways to cure infections. Targeting virulence factors is one of such approaches. The bacterial HtrA proteins are strongly involved in virulence and the lack of functional HtrA in many cases impairs invasiveness of pathogens. HtrAs act by protecting the cells under stressful conditions as well as they take direct part in invasion of the host. The latter function is played predominantly by the recently identified extracellular fraction of HtrA...
December 23, 2016: Current Medicinal Chemistry
keyword
keyword
47194
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"