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https://www.readbyqxmd.com/read/28920611/an-efficient-algorithm-for-extracting-the-magnitude-of-the-measurement-error-for-fractional-dynamics
#1
G Sikora, E Kepten, A Weron, M Balcerek, K Burnecki
Modern live-imaging fluorescent microscopy techniques following the stochastic motion of labeled tracer particles, i.e. single particle tracking (SPT) experiments, have uncovered significant deviations from the laws of Brownian motion in a variety of biological systems. Accurately characterizing the anomalous diffusion for SPT experiments has become a central issue in biophysics. However, measurement errors raise difficulty in the analysis of single trajectories. In this paper, we introduce a novel surface calibration method based on a fractionally integrated moving average (FIMA) process as an effective tool for extracting both the magnitude of the measurement error and the anomalous exponent for autocorrelated processes of various origins...
September 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28918339/interference-of-dibutylphthalate-on-human-prostate-cell-viability
#2
Mariana Di Lorenzo, Maurizio Forte, Salvatore Valiante, Vincenza Laforgia, Maria De Falco
Dibutylphthalate (DBP) is an environmental pollutant widely used as plasticizer in a variety of industrial applications worldwide. This agent can be found in personal-care products, children's toy, pharmaceuticals, food products. Exposure to DBP can occur via ingestion and inhalation as well as intravenous or skin contact. DBP belongs to the family of endocrine disrupting chemicals (EDCs) and its effects on reproductive system were demonstrated both in vivo and in vitro. In the present study we evaluated the effects of DBP on human prostate adenocarcinoma epithelial cells (LNCaP) in order to highlight xenoestrogens influence on human prostate...
September 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28915251/computational-analysis-of-network-activity-and-spatial-reach-of-sharp-wave-ripples
#3
Sadullah Canakci, Muhammed Faruk Toy, Ahmet Fatih Inci, Xin Liu, Duygu Kuzum
Network oscillations of different frequencies, durations and amplitudes are hypothesized to coordinate information processing and transfer across brain areas. Among these oscillations, hippocampal sharp wave-ripple complexes (SPW-Rs) are one of the most prominent. SPW-Rs occurring in the hippocampus are suggested to play essential roles in memory consolidation as well as information transfer to the neocortex. To-date, most of the knowledge about SPW-Rs comes from experimental studies averaging responses from neuronal populations monitored by conventional microelectrodes...
2017: PloS One
https://www.readbyqxmd.com/read/28911938/-families-experiences-and-satisfaction-with-a-pediatric-emergency-service
#4
S Perret, M Gehri, J Pluies, I Rossi, C Akre
OBJECTIVE: Today, pediatric emergency services receive a rising number of "non-urgent" cases, which are due to parental anxiety or a miscomprehension of medical explanations. The aim of this study was therefore to understand what those families experience and need when they consult in such cases, in order to respond with adapted solutions. METHODS: Semi-structured interviews and questionnaires with parents, after the consultation or in the waiting room. RESULTS: Based on the families' narratives, we present the results in six steps, which correspond to the steps they experience from the decision to go to the hospital to the consultation...
September 11, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28910847/association-between-umbilical-catheters-and-neonatal-outcomes-in-extremely-preterm-infants
#5
Mohamed S Elboraee, Jennifer Toye, Xiang Y Ye, Prakesh S Shah, Khalid Aziz
No abstract text is available yet for this article.
September 14, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28901631/equine-behavioral-enrichment-toys-as-tools-for-non-invasive-recovery-of-viral-and-host-dna
#6
Peter A Seeber, Sanatana E Soilemetzidou, Marion L East, Chris Walzer, Alex D Greenwood
Direct collection of samples from wildlife can be difficult and sometimes impossible. Non-invasive remote sampling for the purpose of DNA extraction is a potential tool for monitoring the presence of wildlife at the individual level, and for identifying the pathogens shed by wildlife. Equine herpesviruses (EHV) are common pathogens of equids that can be fatal if transmitted to other mammals. Transmission usually occurs by nasal aerosol discharge from virus-shedding individuals. The aim of this study was to validate a simple, non-invasive method to track EHV shedding in zebras and to establish an efficient protocol for genotyping individual zebras from environmental DNA (eDNA)...
September 12, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28895924/artificial-turf-contested-terrains-for-precautionary-public-health-with-particular-reference-to-europe
#7
Andrew Watterson
Millions of adults, children and teenagers use artificial sports pitches and playgrounds globally. Pitches are artificial grass and bases may be made up of crumb rubber from recycled tires or new rubber and sand. Player injury on pitches was a major concern. Now, debates about health focus on possible exposure and uptake of chemicals within pitch and base materials. Research has looked at potential risks to users from hazardous substances such as metals, volatile organic compounds, polycyclic aromatic hydrocarbons including benzo (a) (e) pyrenes and phthalates: some are carcinogens and others may be endocrine disruptors and have developmental reproductive effects...
September 12, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28892819/input-subject-diversity-accelerates-the-growth-of-tense-and-agreement-indirect-benefits-from-a-parent-implemented-intervention
#8
Pamela A Hadley, Matthew Rispoli, Janet K Holt
Purpose: This follow-up study examined whether a parent intervention that increased the diversity of lexical noun phrase subjects in parent input and accelerated children's sentence diversity (Hadley et al., 2017) had indirect benefits on tense/agreement (T/A) morphemes in parent input and children's spontaneous speech. Method: Differences in input variables related to T/A marking were compared for parents who received toy talk instruction and a quasi-control group: input informativeness and full is declaratives...
September 18, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28892202/syringomyelia-and-craniocervical-junction-abnormalities-in-chihuahuas
#9
A-M Kiviranta, C Rusbridge, O Laitinen-Vapaavuori, A Hielm-Björkman, A K Lappalainen, S P Knowler, T S Jokinen
BACKGROUND: Chiari-like malformation (CM) and syringomyelia (SM) are widely reported in Cavalier King Charles Spaniels and Griffon Bruxellois dogs. Increasing evidence indicates that CM and SM also occur in other small and toy breed dogs, such as Chihuahuas. OBJECTIVES: To describe the presence of SM and craniocervical junction (CCJ) abnormalities in Chihuahuas and to evaluate the possible association of CCJ abnormalities with SM. To describe CM/SM-related clinical signs and neurologic deficits and to investigate the association of CM/SM-related clinical signs with signalment, SM, or CCJ abnormalities...
September 11, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28890737/from-hard-neuro-tools-to-soft-neuro-toys-refocussing-the-neuro-enhancement-debate
#10
Jonna Brenninkmeijer, Hub Zwart
Since the 1990's, the debate concerning the ethical, legal and societal aspects of 'neuro-enhancement' has evolved into a massive discourse, both in the public realm and in the academic arena. This ethical debate, however, tends to repeat the same sets of arguments over and over again. Normative disagreements between transhumanists and bioconservatives on invasive or radical brain stimulators, and uncertainties regarding the use and effectivity of nootropic pharmaceuticals dominate the field. Building on the results of an extensive European project on responsible research and innovation in neuro-enhancement (NERRI), we observe and encourage that the debate is now entering a new and, as we will argue, more realistic and societally relevant stage...
2017: Neuroethics
https://www.readbyqxmd.com/read/28881987/efficient-simulation-of-intrinsic-extrinsic-and-external-noise-in-biochemical-systems
#11
Dennis Pischel, Kai Sundmacher, Robert J Flassig
Motivation: Biological cells operate in a noisy regime influenced by intrinsic, extrinsic and external noise, which leads to large differences of individual cell states. Stochastic effects must be taken into account to characterize biochemical kinetics accurately. Since the exact solution of the chemical master equation, which governs the underlying stochastic process, cannot be derived for most biochemical systems, approximate methods are used to obtain a solution. Results: In this study, a method to efficiently simulate the various sources of noise simultaneously is proposed and benchmarked on several examples...
July 15, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28876178/handedness-and-reach-to-place-kinematics-in-adults-left-handers-are-not-reversed-right-handers
#12
Eliza L Nelson, Neil E Berthier, George D Konidaris
The primary goal of this study was to examine the relations between limb control and handedness in adults. Participants were categorized as left or right handed for analyses using the Edinburgh Handedness Inventory. Three-dimensional recordings were made of each arm on two reach-to-place tasks: adults reached to a ball and placed it into the opening of a toy (fitting task), or reached to a Cheerio inside a cup, which they placed on a designated mark after each trial (cup task). We hypothesized that limb control and handedness were related, and we predicted that we would observe side differences favoring the dominant limb based on the dynamic dominance hypothesis of motor lateralization...
September 6, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28873813/designing-out-the-play-accessibility-and-playfulness-in-inclusive-play
#13
Raymond Holt, Angharad Beckett
Play is an important part of child development, yet disabled children are often excluded from the opportunity to play, either due to lack of accessible toys and games, or social pressures. This paper presents a case study reflecting on the development of Button Bash: a switch accessible game intended to encourage inclusive play between disabled and non-disabled children. In particular, the paper focuses on how changes intended to make the game more accessible tended to make it less playful, and reflects on the relationship between playfulness and accessibility...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28870397/eradicating-hepatitis-b-virus-the-critical-role-of-preventing-perinatal-transmission
#14
REVIEW
Cladd E Stevens, Pearl Toy, Saleem Kamili, Patricia E Taylor, Myron J Tong, Guo-Liang Xia, Girish N Vyas
Prevention of hepatitis B virus (HBV) transmission from infected mothers to their newborns is critical to HBV control and eventual eradication. Mother-to-child perinatal transmission causes the highest chronic carrier rate (>85%) with a high rate of subsequent chronic liver disease and hepatocellular carcinoma. This risk is reduced by 90% with HBV vaccine given along with hepatitis B immune globulin (HBIG) starting at birth. New analyses of our data from US trials of HBIG and HBV vaccine in high-risk infants revealed better efficacy with yeast-recombinant vaccine than plasma-derived vaccine, especially in preventing late onset infections, with evidence that vaccine prevented transmission of maternal HBV infection with the glycine to arginine mutation in surface antigen codon 145 (sG145R)...
September 1, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28863388/children-s-exposure-to-brominated-flame-retardants-in-indoor-environments-a-review
#15
REVIEW
Eleftheria Malliari, Olga-Ioanna Kalantzi
The aim of this review is to present up-to-date research on children's exposure to brominated flame retardants (BFRs) in indoor environments. Large geographical variations were observed for all BFRs [polybrominated diphenyl ethers (PBDEs), hexabromocyclododecane (HBCDD), tetrabromobisphenol A (TBBPA)], with the highest concentrations of PBDEs measured in North America (BDE-47) and Europe (BDE-209), where higher concentrations of PBDEs are present in dust from houses, daycare centers and primary schools. In Asia the highest PBDE concentrations were measured in China, near e-waste recycling areas...
August 28, 2017: Environment International
https://www.readbyqxmd.com/read/28861936/pivotal-response-treatment-for-preschoolers-with-autism-spectrum-disorder-defining-a-predictor-profile
#16
Kristin-Lee Fossum, Loriann Williams, Nancy Garon, Susan E Bryson, Isabel M Smith
Behavioral characteristics of children with autism spectrum disorder (ASD) who respond positively to Pivotal Response Treatment (PRT) have been described previously, based on single-subject design research. The present study examined several such characteristics, as well as positive affect, as predictors of expressive language (EL) gains in a representative sample of preschoolers with ASD (n = 57) enrolled in a PRT-based community early intervention program. Children's cognitive ability, positive affect, and levels of appropriate toy contact measured at the start of intervention each contributed significantly to the prediction of EL outcomes...
August 31, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28855866/structure-function-revisited-a-simple-tool-for-complex-analysis-of-neuronal-activity
#17
Federico Nanni, Daniela S Andres
Neural systems are characterized by their complex dynamics, reflected on signals produced by neurons and neuronal ensembles. This complexity exhibits specific features in health, disease and in different states of consciousness, and can be considered a hallmark of certain neurologic and neuropsychiatric conditions. To measure complexity from neurophysiologic signals, a number of different nonlinear tools of analysis are available. However, not all of these tools are easy to implement, or able to handle clinical data, often obtained in less than ideal conditions in comparison to laboratory or simulated data...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28854313/training-peer-partners-to-use-a-speech-generating-device-with-classmates-with-autism-spectrum-disorder-exploring-communication-outcomes-across-preschool-contexts
#18
Kathy S Thiemann-Bourque, Sara McGuff, Howard Goldstein
Purpose: This study examined effects of a peer-mediated intervention that provided training on the use of a speech-generating device for preschoolers with severe autism spectrum disorder (ASD) and peer partners. Method: Effects were examined using a multiple probe design across 3 children with ASD and limited to no verbal skills. Three peers without disabilities were taught to Stay, Play, and Talk using a GoTalk 4+ (Attainment Company) and were then paired up with a classmate with ASD in classroom social activities...
September 18, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28852574/spatially-induced-nestedness-in-a-neutral-model-of-phage-bacteria-networks
#19
Sergi Valverde, Santiago F Elena, Ricard Solé
Ecological networks, both displaying mutualistic or antagonistic interactions, seem to share common structural traits: the presence of nestedness and modularity. A variety of model approaches and hypothesis have been formulated concerning the significance and implications of these properties. In phage-bacteria bipartite infection networks, nestedness seems to be the rule in many different contexts. Modeling the coevolution of a diverse virus-host ensemble is a difficult task, given the dimensionality and multi parametric nature of a standard continuous approximation...
July 2017: Virus Evolution
https://www.readbyqxmd.com/read/28842923/astrocyte-driven-plasticity-contributes-to-environment-related-changes-of-hippocampal-oscillations
#20
Lucia Wittner
The effects of the environment on the mood and behaviour is in the focus of current brain research. All of us certainly have personal observations within this topic, like how much children love places with numerous colourful toys, or that people usually feel better in a bright and picturesque milieu compared to dark and dull places. This article is protected by copyright. All rights reserved.
August 26, 2017: Journal of Physiology
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