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Cross frequency coupling

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https://www.readbyqxmd.com/read/28621583/effect-of-a-publicly-accessible-disclosure-system-on-food-safety-inspection-scores-in-retail-and-food-service-establishments
#1
Jihee Choi, Robert L Scharff
The increased frequency with which people are dining out coupled with an increase in the publicity of foodborne disease outbreaks has led the public to an increased awareness of food safety issues associated with food service establishments. To accommodate consumer needs, local health departments have increasingly publicized food establishments' health inspection scores. The objective of this study was to estimate the effect of the color-coded inspection score disclosure system in place since 2006 in Columbus, OH, by controlling for several confounding factors...
June 16, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28618492/spontaneous-exchange-of-leader-laggard-relationship-in-mutually-coupled-synchronized-semiconductor-lasers
#2
Kazutaka Kanno, Takuya Hida, Atsushi Uchida, Masatoshi Bunsen
We investigate the instantaneous behavior of synchronized temporal wave forms in two mutually coupled semiconductor lasers numerically and experimentally. The temporal wave forms of two lasers are synchronized with a propagation delay time, with one laser oscillating in advance of the other, known as the leader-laggard relationship. The leader-laggard relationship can be determined by measuring the cross-correlation between the two temporal wave forms with the propagation delay time. The leader can be identified when the optical carrier frequency of the leader laser is higher than that of the other laser...
May 2017: Physical Review. E
https://www.readbyqxmd.com/read/28596934/gel-performance-in-rheology-and-profile-control-under-low-frequency-vibration-coupling-application-of-physical-and-chemical-eor-techniques
#3
Li Ming Zheng, Chun Sheng Pu, Jing Liu, Bo Ma, Nasir Khan
Flowing gel plugging and low-frequency vibration oil extraction technology have been widely applied in low-permeability formation. High probability of overlapping in action spheres of two technologies might lead to poor operating efficiency during gel injection. Study on flowing gel rheological properties under low-frequency vibration was essential, which was carried out indoor with viscosity measurement. Potential dynamic mechanisms were analyzed for the rheological variation. Under low-frequency vibration, gel rheological properties were found to be obviously influenced, with vibration delaying gel cross-linking in induction period, causing a two-stage gel viscosity change in acceleration period, and decreasing gel strength in stable period...
2017: Journal of Petroleum Exploration and Production Technology
https://www.readbyqxmd.com/read/28592697/top-down-beta-enhances-bottom-up-gamma
#4
Craig G Richter, William H Thompson, Conrado A Bosman, Pascal Fries
Several recent studies have demonstrated that the bottom-up signaling of a visual stimulus is subserved by interareal gamma-band synchronization, whereas top-down influences are mediated by alpha-beta band synchronization. These processes may implement top-down control of stimulus processing if top-down and bottom-up mediating rhythms are coupled via cross-frequency interaction. To test this possibility, we investigated Granger-causal influences among awake male macaque primary visual area V1, higher visual area V4 and parietal control area 7a during attentional task performance...
June 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28583343/relational-intimacy-mediates-sexual-outcomes-associated-with-impaired-sexual-function-examination-in-a-clinical-sample
#5
Marta Parkanyi Witherow, Shambhavi Chandraiah, Samantha R Seals, Dustin E Sarver, Kathryn E Parisi, Antal Bugan
BACKGROUND: Relational intimacy is hypothesized to underlie the association between female sexual functioning and various sexual outcomes, and married women and women with sexual dysfunction have been generally absent from prior studies investigating these associations, thus restricting generalizability. AIM: To investigate whether relational intimacy mediates sexual outcomes (sexual satisfaction, coital frequency, and sexual distress) in a sample of married women with and without impaired sexual functioning presenting in clinical settings...
June 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28576950/retrospective-case-reports-of-two-central-north-carolina-residents-frequency-of-tick-bites-and-associated-illnesses-2001-2014
#6
Marcia E Herman-Giddens, D Marcus Herman-Giddens
BACKGROUND Tick bites are a source of illness and disease agents that may lead to morbidity and occasional fatalities in North Carolina. Public health interest in tick-borne illness and disease has increased due to continuing discoveries of tick-borne diseases and their increasing geographic spread and disease incidence. There are no data published on lay individuals with cumulative tick bites and associated illnesses over a period of years.METHODS We learned of a married couple living on a central North Carolina property who had used reasonable bite prevention methods, kept attached ticks after removal, and recorded dates and related illness records from 2001-2014...
May 2017: North Carolina Medical Journal
https://www.readbyqxmd.com/read/28574461/innovative-high-throughput-saxs-methodologies-based-on-photonic-lab-on-a-chip-sensors-application-to-macromolecular-studies
#7
Isaac Rodríguez-Ruiz, Dimitri Radajewski, Sophie Charton, Nhat Phamvan, Martha Brennich, Petra Pernot, Françoise Bonneté, Sébastien Teychené
The relevance of coupling droplet-based Photonic Lab-on-a-Chip (PhLoC) platforms and Small-Angle X-Ray Scattering (SAXS) technique is here highlighted for the performance of high throughput investigations, related to the study of protein macromolecular interactions. With this configuration, minute amounts of sample are required to obtain reliable statistical data. The PhLoC platforms presented in this work are designed to allow and control an effective mixing of precise amounts of proteins, crystallization reagents and buffer in nanoliter volumes, and the subsequent generation of nanodroplets by means of a two-phase flow...
June 2, 2017: Sensors
https://www.readbyqxmd.com/read/28574350/characterization-of-kerfless-linear-arrays-based-on-pzt-thick-film
#8
Tomasz Zawada, Louise Bierregaard, Erling Ringgaard, Ruichao Xu, Michele Guizzetti, Franck Levassort, Dominique Certon
Multi-element transducers enabling novel cost-effective fabrication of imaging arrays for medical applications have been presented earlier. Due to the favorable low lateral coupling of the screen-printed PZT, the elements can be defined by the top electrode pattern only, leading to a kerfless design with low cross-talk between the elements. The thick-film based linear arrays have proved to be compatible with a commercial ultrasonic scanner and to support linear array beamforming as well as phased array beamforming...
May 26, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28573679/bidirectional-electric-communication-between-the-inferior-occipital-gyrus-and-the-amygdala-during-face-processing
#9
Wataru Sato, Takanori Kochiyama, Shota Uono, Kazumi Matsuda, Keiko Usui, Naotaka Usui, Yushi Inoue, Motomi Toichi
Faces contain multifaceted information that is important for human communication. Neuroimaging studies have revealed face-specific activation in multiple brain regions, including the inferior occipital gyrus (IOG) and amygdala; it is often assumed that these regions constitute the neural network responsible for the processing of faces. However, it remains unknown whether and how these brain regions transmit information during face processing. This study investigated these questions by applying dynamic causal modeling of induced responses to human intracranial electroencephalography data recorded from the IOG and amygdala during the observation of faces, mosaics, and houses in upright and inverted orientations...
June 2, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28566013/sexual-harassment-and-menstrual-disorders-among-italian-university-women-a-cross-sectional-observational-study
#10
P Romito, C Cedolin, F Bastiani, L Beltramini, M J Saurel-Cubizolles
AIMS: Menstrual disorders and sexual harassment are common among young women and interfere with their life and activities. We aimed to describe the association of sexual harassment and menstrual disorders among female university students. METHODS: This cross-sectional, observational study examined the association between sexual harassment and menstrual disorders in a sample of 349 university students in Italy. Students answered an anonymous self-administered questionnaire...
May 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/28560941/thyroid-cancer-has-a-small-impact-on-patient-partner-relationships-and-their-frequency-of-sexual-activity
#11
Natalie Büel-Drabe, Hans Steinert, Hanspeter Moergeli, Steffi Weidt, Annina Seiler, Josef Jenewein
OBJECTIVE: This cross-sectional survey examined changes in perceived relationships and sexual activity in a sample of thyroid cancer patients and their partners, taking into account sociodemographic and disease-related variables, as well as such outcome measures as anxiety, depression, fatigue, and quality of life (QoL). METHOD: A total of 38 patients with thyroid cancer who were being treated at the department of nuclear medicine in Zürich or Lucerne over the preceding seven years, as well as their partners, completed questionnaires about the quality of their relationships (RQ), about perceptions of changes in their relationships, and about their frequency of sexual activity...
May 31, 2017: Palliative & Supportive Care
https://www.readbyqxmd.com/read/28536516/multi-regional-adaptation-in-human-auditory-association-cortex
#12
Urszula Malinowska, Nathan E Crone, Frederick A Lenz, Mackenzie Cervenka, Dana Boatman-Reich
In auditory cortex, neural responses decrease with stimulus repetition, known as adaptation. Adaptation is thought to facilitate detection of novel sounds and improve perception in noisy environments. Although it is well established that adaptation occurs in primary auditory cortex, it is not known whether adaptation also occurs in higher auditory areas involved in processing complex sounds, such as speech. Resolving this issue is important for understanding the neural bases of adaptation and to avoid potential post-operative deficits after temporal lobe surgery for treatment of focal epilepsy...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28536507/dopamine-modulates-delta-gamma-phase-amplitude-coupling-in-the-prefrontal-cortex-of-behaving-rats
#13
Victoria Andino-Pavlovsky, Annie C Souza, Robson Scheffer-Teixeira, Adriano B L Tort, Roberto Etchenique, Sidarta Ribeiro
Dopamine release and phase-amplitude cross-frequency coupling (CFC) have independently been implicated in prefrontal cortex (PFC) functioning. To causally investigate whether dopamine release affects phase-amplitude comodulation between different frequencies in local field potentials (LFP) recorded from the medial PFC (mPFC) of behaving rats, we used RuBiDopa, a light-sensitive caged compound that releases the neurotransmitter dopamine when irradiated with visible light. LFP power did not change in any frequency band after the application of light-uncaged dopamine, but significantly strengthened phase-amplitude comodulation between delta and gamma oscillations...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/28529383/the-pelskin-project-part-ii-investigating-the-physical-coupling-between-flexible-filaments-in-an-oscillating-flow
#14
Alistair Revell, Joseph O'Connor, Abhishek Sarkar, Cuicui Li, Julien Favier, Laura Kamps, Christoph Brücker
The fluid-structure interaction mechanisms of a coating composed of flexible flaps immersed in a periodically oscillating channel flow is here studied by means of numerical simulation, employing the Euler-Bernoulli equations to account for the flexibility of the structures. A set of passively actuated flaps have previously been demonstrated to deliver favourable aerodynamic impact when attached to a bluff body undergoing periodic vortex shedding. As such, the present configuration is identified to provide a useful test-bed to better understand this mechanism, thought to be linked to experimentally observed travelling waves...
2017: Meccanica
https://www.readbyqxmd.com/read/28526002/affective-concordance-in-couples-a-cross-sectional-analysis-of-depression-and-anxiety-consultations-within-a-population-of-13-507-couples-in-primary-care
#15
J Walker, J Liddle, K P Jordan, P Campbell
BACKGROUND: Depression and anxiety are common and have a significant impact on the individual and wider society. One theory proposed to explain a heightened risk for depression and anxiety is affective concordance in couples (e.g. influence of shared mood states, shared health beliefs). Whilst research has shown concordance for severe psychiatric illnesses and general mood in couples, little attention has been given to concordance for common psychiatric conditions such as depression and anxiety...
May 19, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28522540/orthogonal-estimates-of-variances-for-additive-dominance-and-epistatic-effects-in-populations
#16
Z G Vitezica, A Legarra, M A Toro, L Varona
Genomic prediction methods based on multiple markers have potential to include non-additive effects in prediction and analysis of complex traits. However, most developments assume Hardy-Weinberg equilibrium (HWE). Statistical approaches for genomic selection that account for dominance and epistasis in a general context, without assuming HWE (e.g. crosses or homozygous lines), are therefore needed. Our method expands the NOIA orthogonal approach, that builds incidence matrices based on genotypic (not allelic) frequencies, to include genome-wide epistasis for an arbitrary number of interacting loci in a genomic evaluation context...
May 18, 2017: Genetics
https://www.readbyqxmd.com/read/28505089/squeeze-film-air-damping-of-a-five-axis-electrostatic-bearing-for-rotary-micromotors
#17
Shunyue Wang, Fengtian Han, Boqian Sun, Haixia Li
Air-film damping, which dominates over other losses, plays a significant role in the dynamic response of many micro-fabricated devices with a movable mass suspended by various bearing mechanisms. Modeling the damping characteristics accurately will be greatly helpful to the bearing design, control, and test in various micromotor devices. This paper presents the simulated and experimental squeeze-film air damping results of an electrostatic bearing for use in a rotary high-speed micromotor. It is shown that the boundary condition to solve the three-dimensional Reynolds equation, which governs the squeeze-film damping in the air gap between the rotor and its surrounding stator sealed in a three-layer evacuated cavity, behaves with strong cross-axis coupling characteristics...
May 13, 2017: Sensors
https://www.readbyqxmd.com/read/28504519/longitudinal-associations-between-adult-children-s-relations-with-parents-and-intimate-partners
#18
Matthew D Johnson, Adam M Galovan, Rebecca M Horne, Joohong Min, Sabine Walper
Drawing on 5 waves of multiple-informant data gathered from focal participants and their parents and intimate partners (n = 360 families) who completed annual surveys in the German Family Panel (pairfam) study, the present investigation examined bidirectional associations between the development of adults' conflictual and intimate interactions with their parents and intimate partners. Autoregressive cross-lagged latent change score modeling results revealed a robust pattern of coordinated development between parent-adult child and couple conflictual and intimate interactions: increases in conflict and intimacy in one relationship were contemporaneously intertwined with changes in the other relationship...
May 15, 2017: Journal of Family Psychology: JFP
https://www.readbyqxmd.com/read/28489085/intrinsic-and-light-induced-nonadiabatic-phenomena-in-the-nai-molecule
#19
András Csehi, Gábor J Halász, Lorenz S Cederbaum, Ágnes Vibók
Nonadiabatic effects play a very important role in controlling chemical dynamical processes. They are strongly related to avoided crossings (AC) or conical intersections (CIs) which can either be present naturally or induced by classical laser light in a molecular system. The latter are named as "light-induced avoided crossings" (LIACs) and "light-induced conical intersections" (LICIs). By performing one or two dimensional quantum dynamical calculations LIAC and LICI situations can easily be created even in diatomic molecules...
May 10, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28475154/iodine-status-and-iodised-salt-consumption-in-portuguese-school-aged-children-the-iogeneration-study
#20
João Costa Leite, Elisa Keating, Diogo Pestana, Virgínia Cruz Fernandes, Maria Luz Maia, Sónia Norberto, Edgar Pinto, André Moreira-Rosário, Diana Sintra, Bárbara Moreira, Ana Costa, Sofia Silva, Vera Costa, Inês Martins, Francisca Castro Mendes, Pedro Queirós, Bruno Peixoto, José Carlos Caldas, António Guerra, Manuel Fontoura, Sandra Leal, Roxana Moreira, Irene Palmares Carvalho, Rui Matias Lima, Catia Martins, Cristina Delerue-Matos, Agostinho Almeida, Luís Azevedo, Conceição Calhau
The World Health Organization promotes salt iodisation to control iodine deficiency. In Portugal, the use of iodised salt in school canteens has been mandatory since 2013. The present study aimed to evaluate iodine status in school-aged children (6-12 years) and to monitor the use of iodised salt in school canteens. A total of 2018 participants were randomly selected to participate in a cross-sectional survey in northern Portugal. Children's urine and salt samples from households and school canteens were collected...
May 5, 2017: Nutrients
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