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https://www.readbyqxmd.com/read/28092530/feasibility-of-multi-plane-transmit-beamforming-for-real-time-volumetric-cardiac-imaging-a-simulation-study
#1
Yinran Chen, Ling Tong, Alejandra Ortega, Jianwen Luo, Jan D'hooge
Today's three-dimensional (3-D) cardiac ultrasound imaging systems suffer from relatively low spatial and temporal resolution, limiting their applicability in daily clinical practice. To address this problem, 3-D diverging wave imaging with spatial coherent compounding (DWC) as well as 3-D multi-line-transmit (MLT) imaging have recently been proposed. Currently, the former improves the temporal resolution significantly at the expense of image quality and the risk of introducing motion artifacts whereas the latter only provides a moderate gain in volume rate but mostly preserves quality...
January 10, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28092497/polymyxin-b-hemoperfusion-for-sepsis-and-septic-shock-a-systematic-review-and-meta-analysis
#2
Takero Terayama, Kazuma Yamakawa, Yutaka Umemura, Morio Aihara, Satoshi Fujimi
BACKGROUND: To evaluate the efficacy and safety of direct hemoperfusion with polymyxin B-immobilized fiber (PMX-DHP) therapy in patients with sepsis. DESIGN: A systematic review and meta-analysis of four major databases: Cochrane Central Register of Controlled Trials, MEDLINE, Scopus, and Science Citation Index Expanded. STUDY SELECTION: Randomized controlled trials comparing PMX-DHP with conventional therapy on the outcome of mortality in patients with severe sepsis/septic shock...
January 16, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28091883/ground-penetrating-radar-gpr-responses-for-sub-surface-salt-contamination-and-solid-waste-modeling-and-controlled-lysimeter-studies
#3
Y N S Wijewardana, A T Shilpadi, M I M Mowjood, K Kawamoto, L W Galagedara
The assessment of polluted areas and municipal solid waste (MSW) sites using non-destructive geophysical methods is timely and much needed in the field of environmental monitoring and management. The objectives of this study are (i) to evaluate the ground-penetrating radar (GPR) wave responses as a result of different electrical conductivity (EC) in groundwater and (ii) to conduct MSW stratification using a controlled lysimeter and modeling approach. A GPR wave simulation was carried out using GprMax2D software, and the field test was done on two lysimeters that were filled with sand (Lysimeter-1) and MSW (Lysimeter-2)...
February 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28090141/do-maximal-aerobic-power-and-blood-lactate-concentration-affect-specific-judo-fitness-test-performance-in-female-judo-athletes
#4
H Garbouj, M A Selmi, R Haj Sassi, M Haj Yahmed, K Chamari, A Chaouachi
The Special Judo Fitness Test (SJFT) has become the test most widely used by coaches and physical trainers for assessment of competitors' judo-specific physical aptitude and training programme prescription. The aim of this study was to investigate the relationship between the SJFT performance indices and both maximal aerobic power and the level of blood lactate concentrations in female judo athletes. Seventeen female judokas (age: 21.9±1.6 years, body mass: 74.6±27.4 kg, height: 164.5±8.6 cm; BMI: 27.1±8...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28089551/seasonal-circulation-assessments-of-the-northern-arabian-persian-gulf
#5
Y Alosairi, T Pokavanich
Due to the continuous human activities linked to economic expansion in the Arabian Gulf area (also known as Persian Gulf), various activities have had an adverse impact on the coastal environment. Furthermore, reduction of precipitation and river flows has resulted in alterations to the hydro-environment regime at various levels. The current study uses a detailed numerical model that was validated with recent field measurements to determine the comprehensive seasonal circulations of the Northern Arabian/Persian Gulf (NAG)...
January 12, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28088887/-improvement-of-lumbal-motor-control-and-trunkmuscle-conditions-with-a-novel-low-back-pain-prevention-exercise-program
#6
Viktória Kovácsné Bobály, Brigitta Szilágyi, Alexandra Makai, Ákos Koller, Melinda Járomi
INTRODUCTION: Ballet dancers often suffer from low back pain. AIM: Low back pain can be reduced by strengthening the core muscles with the help of a special exercise program. MATERIALS AND METHODS: In the study 62 ballet dancer women (average age: 14.89 ± 1.21 years) were included. Intervention group: n = 30 participant, average age: 14.86 ± 1.00 years, control group: n = 32 participant, average age: 14.91 ± 1.37 years. We examined the pain intensity that occurs during training with visual analog scale, the habitual posture with photogrammetry, the abdominal muscle strength with Kraus-Weber test, the static muscle strength of the trunk muscles with core test and the lumbar motor control with leg lowering test...
January 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28088499/initial-uncertainty-impacts-statistical-learning-in-sound-sequence-processing
#7
Juanita Todd, Alexander Provost, Lisa Whitson, Daniel Mullens
This paper features two studies confirming a lasting impact of first learning on how subsequent experience is weighted in early relevance-filtering processes. In both studies participants were exposed to sequences of sound that contained a regular pattern on two different timescales. Regular patterning in sound is readily detected by the auditory system and used to form "prediction models" that define the most likely properties of sound to be encountered in a given context. The presence and strength of these prediction models is inferred from changes in automatically elicited components of auditory evoked potentials...
January 11, 2017: Journal of Physiology, Paris
https://www.readbyqxmd.com/read/28087891/physical-activity-and-exercise-for-chronic-pain-in-adults-an-overview-of-cochrane-reviews
#8
REVIEW
Louise J Geneen, R Andrew Moore, Clare Clarke, Denis Martin, Lesley A Colvin, Blair H Smith
BACKGROUND: Chronic pain is defined as pain lasting beyond normal tissue healing time, generally taken to be 12 weeks. It contributes to disability, anxiety, depression, sleep disturbances, poor quality of life, and healthcare costs. Chronic pain has a weighted mean prevalence in adults of 20%.For many years, the treatment choice for chronic pain included recommendations for rest and inactivity. However, exercise may have specific benefits in reducing the severity of chronic pain, as well as more general benefits associated with improved overall physical and mental health, and physical functioning...
January 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28086992/therapies-for-bruxism-a-systematic-review-and-network-meta-analysis-protocol
#9
Mauro Elias Mesko, Brian Hutton, Jovito Adiel Skupien, Rafael Sarkis-Onofre, David Moher, Tatiana Pereira-Cenci
BACKGROUND: Bruxism is a sleep disorder characterized by grinding and clenching of the teeth that may be related to irreversible tooth injuries. It is a prevalent condition occurring in up to 31% of adults. However, there is no definitive answer as to which of the many currently available treatments (including drug therapy, intramuscular injections, physiotherapy, biofeedback, kinesiotherapy, use of intraoral devices, or psychological therapy) is the best for the clinical management of the different manifestations of bruxism...
January 13, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28081571/robust-inference-from-conditional-logistic-regression-applied-to-movement-and-habitat-selection-analysis
#10
Marie-Caroline Prima, Thierry Duchesne, Daniel Fortin
Conditional logistic regression (CLR) is widely used to analyze habitat selection and movement of animals when resource availability changes over space and time. Observations used for these analyses are typically autocorrelated, which biases model-based variance estimation of CLR parameters. This bias can be corrected using generalized estimating equations (GEE), an approach that requires partitioning the data into independent clusters. Here we establish the link between clustering rules in GEE and their effectiveness to remove statistical biases in variance estimation of CLR parameters...
2017: PloS One
https://www.readbyqxmd.com/read/28081196/how-social-ties-influence-consumer-evidence-from-event-related-potentials
#11
Jing Luan, Zhong Yao, Yan Bai
A considerable amount of marketing research has reported that consumers are more saliently influenced by friends (strong social ties) than by acquaintances and strangers (weak social ties). To shed light on the neural and psychological processes underlying such phenomenon, in this study we designed an amended S1-S2 paradigm (product-[reviewer-review]) that is based on realistic consumer purchase experiences. After incoming all given information (product, reviewer, review), participants were required to state their purchase intentions...
2017: PloS One
https://www.readbyqxmd.com/read/28078338/dual-physically-crosslinked-double-network-hydrogels-with-high-toughness-and-self-healing-properties
#12
Xuefeng Li, Qian Yang, Youjiao Zhao, Shijun Long, Jie Zheng
Toughness and self-healing properties are desirable characteristics in engineered hydrogels used for many practical applications. However, it is still challenging to develop hydrogels exhibiting both of these attractive properties in a single material. In this work, we present the fabrication of fully physically-linked Agar/PAAc-Fe(3+) DN gels. These hydrogels exhibited dual physical crosslinking through a hydrogen bonded crosslinked agar network firstly, and a physically linked PAAc-Fe(3+) network via Fe(3+) coordination interactions secondly...
January 12, 2017: Soft Matter
https://www.readbyqxmd.com/read/28077884/chemical-vs-physical-acceleration-of-cement-hydration
#13
Dale P Bentz, Franco Zunino, Didier Lootens
Cold weather concreting often requires the use of chemical accelerators to speed up the hydration reactions of the cement, so that setting and early-age strength development will occur in a timely manner. While calcium chloride (dihydrate - CaCl2·2H2O) is the most commonly used chemical accelerator, recent research using fine limestone powders has indicated their high proficiency for physically accelerating early-age hydration and reducing setting times. This paper presents a comparative study of the efficiency of these two approaches in accelerating hydration (as assessed via isothermal calorimetry), reducing setting times (Vicat needle), and increasing early-age mortar cube strength (1 d and 7 d)...
November 2016: Concr Int
https://www.readbyqxmd.com/read/28076401/exploring-nurses-preschool-teachers-and-parents-perspectives-on-information-sharing-using-sdq-in-a-swedish-setting-a-qualitative-study-using-grounded-theory
#14
Elisabet Fält, Anna Sarkadi, Helena Fabian
Evidence-based methods to identify behavioural problems among children are not regularly used within the Swedish Child healthcare. A new procedure was therefore introduced to assess children through parent- and preschool teacher reports using the Strengths and Difficulties Questionnaire (SDQ). This study aims to explore nurses', preschool teachers' and parents' perspectives of this new information sharing model. Using the grounded theory methodology, semi-structured interviews with nurses (n = 10) at child health clinics, preschool teachers (n = 13) and parents (n = 11) of 3-, 4- and 5-year-old children were collected and analysed between March 2014 and June 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28076362/temporal-dependency-and-the-structure-of-early-looking
#15
Daniel S Messinger, Whitney I Mattson, James Torrence Todd, Devon N Gangi, Nicholas D Myers, Lorraine E Bahrick
Although looking time is used to assess infant perceptual and cognitive processing, little is known about the temporal structure of infant looking. To shed light on this temporal structure, 127 three-month-olds were assessed in an infant-controlled habituation procedure and presented with a pre-recorded display of a woman addressing the infant using infant-directed speech. Previous individual look durations positively predicted subsequent look durations over a six look window, suggesting a temporal dependency between successive infant looks...
2017: PloS One
https://www.readbyqxmd.com/read/28073539/physical-processes-leading-to-the-development-of-an-anomalously-large-cochlodinium-polykrikoides-bloom-in-the-east-sea-japan-sea
#16
Dae-Won Kim, Young-Heon Jo, Jong-Kuk Choi, Jang-Geun Choi, Hongsheng Bi
An anomalously large Harmful Algal Bloom (HAB) was observed in the southwest coast of the East/Japan Sea (hereafter the East Sea) during the summer of 2013. During this time period, the presence of Cochlodinium polykrikoides (C. polykrikoides) was detected by the Geostationary Ocean Color Imager (GOCI) and validated by in-situ observations. GOCI observations have been available since 2011, thus allowingto examine various stages of the physical condition of the developing C. polykrikoides bloom, thereby other multi-satellite and buoy measurements obtained between 2011 and 2013...
May 2016: Harmful Algae
https://www.readbyqxmd.com/read/28073436/forecasting-the-risk-of-harmful-algal-blooms
#17
EDITORIAL
Keith Davidson, Donald M Anderson, Marcos Mateus, Beatriz Reguera, Joe Silke, Marc Sourisseau, Julie Maguire
The "Applied Simulations and Integrated Modelling for the Understanding of Harmful Algal Blooms" (Asimuth) project sought to develop a harmful algal bloom (HAB) alert system for Atlantic Europe. This was approached by combining, at a national or regional level, regulatory monitoring phytoplankton and biotoxin data with satellite remote sensing and other information on current marine conditions, coupled with regional scale models that included a representation of HAB transport. Synthesis of these products was achieved by expert interpretation within HAB risk alert bulletins that were prepared on a regular basis (typically weekly) for use by the aquaculture industry...
March 2016: Harmful Algae
https://www.readbyqxmd.com/read/28072803/neural-correlates-of-maladaptive-pain-behavior-in-chronic-neck-pain-a-single-case-control-fmri-study
#18
Konstantin Beinert, Audrey Mouthon, Martin Keller, Michael Mouthon, Jean-Marie Annoni, Wolfgang Taube
Chronic neck pain patients display functional impairments like decreased range of motion, decreased strength, and reduced sensorimotor function. In patients without structural damage, the reason for the persistence of pain is not well understood. Therefore, it is assumed that in chronic pain states, memory processes play an important role. We have now detected and tested a patient that might help us to better understand the neural correlates of maladaptive pain expectation/memory. This patient displays chronic neck pain and restricted unilateral motion of the cervical spine to the left...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28072705/posterior-only-vertebral-column-resection-for-revision-surgery-in-post-laminectomy-rotokyphoscoliosis-associated-with-late-onset-paraplegia-a-case-report-and-literature-review
#19
Youping Tao, Jigong Wu, Huasong Ma
RATIONALE: Severe post-laminectomy spinal deformity associated with late-onset paraplegia is a complex and rare disorder. Little is known about revision surgery in post-laminectomy rotokyphoscoliosis associated with late-onset paraplegia treated by the single stage posterior-only vertebral column resection (VCR) procedure. PATIENT CONCERNS AND DIAGNOSES: The patient was a 14-year-old male diagnosed as post-laminectomy rotokyphoscoliosis associated with late-onset paraplegia...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28072536/role-of-ionic-strength-and-ph-in-modulating-thermodynamic-profiles-associated-with-co-escape-from-rice-nonsymbiotic-hemoglobin-1
#20
David Butcher, Sophie Bernad, Valerie Derrien, Pierre Sebban, Jaroslava Miksovska
Type 1 nonsymbiotic hemoglobins are found in a wide variety of land plants and exhibit very high affinities for exogenous gaseous ligands. These proteins are presumed to have a role in protecting plant cells from oxidative stress under etiolated/hypoxic conditions through NO dioxygenase activity. In this study we have employed photoacoustic calorimetry, time-resolved absorption spectroscopy, and classical molecular dynamics simulations in order to elucidate thermodynamics, kinetics, and ligand migration pathways upon CO photodissociation from WT and a H73L mutant of type 1 nonsymbiotic hemoglobin from Oryza sativa (rice)...
January 10, 2017: Journal of Physical Chemistry. B
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