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https://www.readbyqxmd.com/read/28103288/child-staff-ratios-in-early-childhood-education-and-care-settings-and-child-outcomes-a-systematic-review-and-meta-analysis
#1
Michal Perlman, Brooke Fletcher, Olesya Falenchuk, Ashley Brunsek, Evelyn McMullen, Prakesh S Shah
Child-staff ratios are a key quality indicator in early childhood education and care (ECEC) programs. Better ratios are believed to improve child outcomes by increasing opportunities for individual interactions and educational instruction from staff. The purpose of this systematic review, and where possible, meta-analysis, was to evaluate the association between child-staff ratios in preschool ECEC programs and children's outcomes. Searches of Medline, PsycINFO, ERIC, websites of large datasets and reference sections of all retrieved articles were conducted up to July 3, 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28103140/avoiding-accidents-at-the-champagne-reception
#2
Giovanni Pezzulo, Pierpaolo Iodice, Francesco Donnarumma, Haris Dindo, Günther Knoblich
Using a lifting and balancing task, we contrasted two alternative views of planning joint actions: one postulating that joint action involves distinct predictions for self and other, the other postulating that joint action involves coordinated plans between the coactors and reuse of bimanual models. We compared compensatory movements required to keep a tray balanced when 2 participants lifted glasses from each other's trays at the same time (simultaneous joint action) and when they took turns lifting (sequential joint action)...
January 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28100746/end-stopping-predicts-curvature-tuning-along-the-ventral-stream
#3
Carlos R Ponce, Till S Hartmann, Margaret S Livingstone
: Neurons in primate inferotemporal cortex (IT) are clustered into patches of shared image preferences. Functional imaging has shown that these patches are activated by natural categories (e.g., faces, body parts, and places), artificial categories (numerals, words) and geometric features (curvature and real-world size). These domains develop in the same cortical locations across monkeys and humans, which raises the possibility of common innate mechanisms. Although these commonalities could be high-level template-based categories, it is alternatively possible that the domain locations are constrained by low-level properties such as end-stopping, eccentricity, and the shape of the preferred images...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28100743/three-small-receptive-field-ganglion-cells-in-the-mouse-retina-are-distinctly-tuned-to-size-speed-and-object-motion
#4
Jason Jacoby, Gregory W Schwartz
: Retinal ganglion cells (RGCs) are frequently divided into functional types by their ability to extract and relay specific features from a visual scene, such as the capacity to discern local or global motion, direction of motion, stimulus orientation, contrast or uniformity, or the presence of large or small objects. Here we introduce three previously uncharacterized, nondirection-selective ON-OFF RGC types that represent a distinct set of feature detectors in the mouse retina. The three high-definition (HD) RGCs possess small receptive-field centers and strong surround suppression...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28100657/frequency-tuning-of-synaptic-inhibition-underlying-duration-tuned-neurons-in-the-mammalian-inferior-colliculus
#5
Roberto Valdizón-Rodríguez, Paul A Faure
Inhibition plays an important role in creating the temporal response properties of duration-tuned neurons (DTNs) in the mammalian inferior colliculus (IC). Neurophysiological and computational studies indicate that duration selectivity in the IC is created through the convergence of excitatory and inhibitory synaptic inputs offset in time. We used paired tone stimulation and extracellular recording to measure the frequency tuning of the inhibition acting on DTNs in the IC of the big brown bat (Eptesicus fuscus)...
January 18, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28100187/prevalence-of-hiv-and-syphilis-co-infection-and-associated-factors-among-non-commercial-men-who-have-sex-with-men-attending-a-sexually-transmitted-disease-clinic-in-shenzhen-china
#6
Wenjie Dai, Zhenzhou Luo, Ruiwei Xu, Guanglu Zhao, Dan Tu, Lin Yang, Feng Wang, Yumao Cai, Lina Lan, Fuchang Hong, Tubao Yang, Tiejian Feng
BACKGROUND: Although HIV and syphilis co-infection has been frequently observed in men who have sex with men (MSM), only few studies have focused on it. Different subgroups of MSM might exhibit heterogeneous HIV and syphilis risk profiles, indicating that interventions for HIV and HIV-related co-infections may vary with different subgroups of MSM. However, no previous study has investigated HIV and syphilis co-infection among non-commercial MSM (ncMSM) attending a sexually transmitted disease (STD) clinic...
January 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28096126/the-age-related-eye-disease-2-study-micronutrients-in-the-treatment-of-macular-degeneration
#7
REVIEW
Aruna Gorusupudi, Kelly Nelson, Paul S Bernstein
Age-related macular degeneration (AMD) is one of the leading causes of vision loss in the elderly. With an increasingly aged population worldwide, the need for the prevention of AMD is rising. Multiple studies investigating AMD with the use of animal models and cell culture have identified oxidative stress-related retinal damage as an important contributing factor. In general, diet is an excellent source of the antioxidants, vitamins, and minerals necessary for healthy living; moreover, the general public is often receptive to recommendations made by physicians and health care workers regarding diet and supplements as a means of empowering themselves to avoid common and worrisome ailments such as AMD, which has made epidemiologists and clinicians enthusiastic about dietary intervention studies...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28095201/multisensory-bayesian-inference-depends-on-synapse-maturation-during-training-theoretical-analysis-and-neural-modeling-implementation
#8
Mauro Ursino, Cristiano Cuppini, Elisa Magosso
Recent theoretical and experimental studies suggest that in multisensory conditions, the brain performs a near-optimal Bayesian estimate of external events, giving more weight to the more reliable stimuli. However, the neural mechanisms responsible for this behavior, and its progressive maturation in a multisensory environment, are still insufficiently understood. The aim of this letter is to analyze this problem with a neural network model of audiovisual integration, based on probabilistic population coding-the idea that a population of neurons can encode probability functions to perform Bayesian inference...
January 17, 2017: Neural Computation
https://www.readbyqxmd.com/read/28093547/functional-consequences-of-pre-and-postsynaptic-expression-of-synaptic-plasticity
#9
REVIEW
Rui Ponte Costa, Beatriz E P Mizusaki, P Jesper Sjöström, Mark C W van Rossum
Growing experimental evidence shows that both homeostatic and Hebbian synaptic plasticity can be expressed presynaptically as well as postsynaptically. In this review, we start by discussing this evidence and methods used to determine expression loci. Next, we discuss the functional consequences of this diversity in pre- and postsynaptic expression of both homeostatic and Hebbian synaptic plasticity. In particular, we explore the functional consequences of a biologically tuned model of pre- and postsynaptically expressed spike-timing-dependent plasticity complemented with postsynaptic homeostatic control...
March 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28093239/application-of-technology-to-social-communication-impairment-in-childhood-and-adolescence
#10
REVIEW
Andrea Trubanova Wieckowski, Susan W White
Social communication impairment has been implicated in various mental health disorders. The primary aim of this review paper is to summarize the extant research on the development and application of technologies to address social communication deficits, conceptualized according to the four constructs outlined by the NIMH's Research Domain Criteria (RDoC), transdiagnostically in children and adolescents. An exhaustive and systematic search yielded 69 peer-reviewed articles meeting all inclusion criteria (i.e...
January 13, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28090351/the-prevalence-and-practice-impact-of-weight-bias-amongst-australian-dietitians
#11
T M Diversi, R Hughes, K J Burke
OBJECTIVES: This study explored weight bias amongst Australian Accredited Practising Dietitians (APDs) and the effect of client weight status on dietetic practice. METHODS: Participants were 201 APDs, recruited using purposive sampling. A self-administered questionnaire, the fat phobia scale (FPS), was completed to assess explicit weight bias. Participants were then randomized to receive either a female within the healthy weight range or female with obesity, accompanied by an identical case study for a condition unrelated to weight...
December 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/28088438/a-snapshot-of-urban-adolescent-women-s-contraceptive-knowledge-at-the-onset-of-a-community-larc-promotion-initiative
#12
K B Greenberg, S C Jenks, N G Piazza, B R Malibiran, C A Aligne
STUDY OBJECTIVE: To contextualize young women's knowledge and attitudes regarding contraception at the outset of an intervention promoting long-acting reversible contraceptives (LARC) for teen pregnancy prevention. DESIGN: and Setting: Our intervention is based on diffusion of innovation theory, and at the outset we were interested in likely early adopters' existing knowledge and attitudes towards contraception. This mixed methods study consists of focus groups within positive youth development programs in Rochester, New York; we discussed young women's knowledge and sources of information for all FDA-approved contraceptive methods...
January 11, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28088261/parquetina-nigrescens-leaves-chemical-profile-and-influence-on-the-physical-and-biochemical-indices-of-sexual-activity-of-male-wistar-rats
#13
Omowumi Titilola Kayode, Musa Toyin Yakubu
OBJECTIVE: The leaves of Parquetina nigrescens have been claimed in folk medicine to be useful for managing sexual dysfunction, but there is inadequate scientific evidence for this claim. This investigation was conducted to assess the effects of aqueous leaf extract of Parquetina nigrescens (AEPN) in rats induced with sexual dysfunction. METHODS: Male rats were allocated into various groups after being induced into sexual dysfunction with paroxetine hydrochloride...
January 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28088066/activity-dependent-development-of-visual-receptive-fields
#14
REVIEW
Andrew Thompson, Alexandra Gribizis, Chinfei Chen, Michael C Crair
It is widely appreciated that neuronal activity contributes to the development of brain representations of the external world. In the visual system, in particular, it is well known that activity cooperates with molecular cues to establish the topographic organization of visual maps on a macroscopic scale [1,2] (Huberman et al., 2008; Cang and Feldheim, 2013), mapping axons in a retinotopic and eye-specific manner. In recent years, significant progress has been made in elucidating the role of activity in driving the finer-scale circuit refinement that shapes the receptive fields of individual cells...
January 11, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28087445/distinct-subcomponents-of-mouse-retinal-ganglion-cell-receptive-fields-are-differentially-altered-by-light-adaptation
#15
C S Cowan, J Sabharwal, R L Seilheimer, S M Wu
The remarkable dynamic range of vision is facilitated by adaptation of retinal sensitivity to ambient lighting conditions. An important mechanism of sensitivity adaptation is control of the spatial and temporal window over which light is integrated. The retina accomplishes this by switching between parallel synaptic pathways with differing kinetics and degrees of synaptic convergence. However, the relative shifts in spatial and temporal integration are not well understood - particularly in the context of the antagonistic spatial surround...
January 10, 2017: Vision Research
https://www.readbyqxmd.com/read/28081359/benzoic-acid-enhances-embryo-implantation-through-lif-dependent-expression-of-integrin-%C3%AE-v%C3%AE-3-and-%C3%AE-v%C3%AE-5
#16
Hee-Jung Choi, Tae-Wook Chung, Mi-Ju Park, Hyung Sik Kim, Sooseong You, Myeong Soo Lee, Bo Sun Joo, Kyu Sup Lee, Keuk-Jun Kim, Gabbine Wee, Choong-Yong Kim, Cheorl-Ho Kim, Ki-Tae Ha
The embryo implantation is crucial step for successful pregnancy. Diverse factors including adhesion molecules, growth factors, and cytokines are important to the embryo implantation through improving endometrial receptivity. Benzoic acid (BA), a component of various plants, has been shown to have anti-fungal and anti-oxidant effects. However, the effect of BA on the embryo implantation remains unknown. Here, we showed the contribution of BA for the enhancement of endometrial receptivity through the leukemia inhibitory factor (LIF)-dependent increase of integrin αV, β3, and β5 expression...
January 12, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28081044/evaluation-of-the-condom-barriers-scale-for-young-black-men-who-have-sex-with-men-reliability-and-validity-of-3-subscales
#17
Richard A Crosby, Stephanie A Sanders, Cynthia A Graham, Robin Milhausen, William L Yarber, Leandro Mena
BACKGROUND: Reliable and valid scale measures of barriers to condom use are not available for young black men who have sex with men (YBMSM). The purpose of this study was to evaluate the Condom Barriers Scales for application with YBMSM. METHODS: A clinic-based sample of 600 YBMSM completed a computer-assisted self-interview. The primary measure was a 14-item abbreviated version of the Condom Barriers Scale. Reliability and criterion validity were assessed. RESULTS: All 3 subscales were reliable: partner-related barriers (Cronbach α=0...
February 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28077842/psychoanalysis-and-the-emigration-of-central-and-eastern-european-intellectuals
#18
Ferenc Erős
One of the most important phenomena in the intellectual history of the 20th century was the exodus of the European mind, the emigration of persons, ideas, techniques, and institutions in the vast areas of social, human, and natural sciences, as well as in literature and the visual arts. Among these exiled intellectuals, psychoanalysts formed a special group. This paper examines the major lines of the emigration of psychoanalysts from the countries of issue to the countries of reception. It focuses, in particular on Hungarian analysts and analytic candidates who left their country of birth in two waves, first after the failure of revolutions in 1918/19 for Berlin, and then after 1938, to escape the Nazis...
December 2016: American Journal of Psychoanalysis
https://www.readbyqxmd.com/read/28077059/ignorance-is-not-bliss-the-effect-of-systematic-information-on-immigrants-knowledge-of-and-satisfaction-with-the-danish-healthcare-system
#19
Signe Smith Jervelund, Thomas Maltesen, Camilla Lawaetz Wimmelmann, Jørgen Holm Petersen, Allan Krasnik
AIMS: Suboptimal healthcare utilisation and lower satisfaction with the patient-doctor encounter among immigrants has been documented. Immigrants' lack of familiarity with the healthcare system has been proposed as an explanation for this. This study investigated whether a systematic delivery of information affected immigrants' knowledge of and satisfaction with the Danish healthcare system. METHODS: A prospective, randomised intervention study of 1158 adult immigrants attending two language schools in Copenhagen was conducted...
January 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/28076534/absorption-and-metabolization-of-sex-hormones-and-their-transformation-into-contraceptive-technologies-the-paths-taken-by-medical-thought-in-brazil
#20
Claudia Bonan, Luiz Antonio Teixeira, Andreza Rodrigues Nakano
The article analyses knowledge assimilation and the development of clinical and research practices relating to sex hormones among Brazilian gynaecologists. It discusses the paths taken by medical thought from the reception of the hormones to their transformation into contraceptives. Our objective is to comprehend styles of introducing and disseminating medical technologies in the area of reproductive health in Brazil. It uses methods of historical analysis and takes as its source the Anais Brasileiros de Ginecologia, a journal published between 1936 and 1970...
January 2017: Ciência & Saúde Coletiva
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