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https://www.readbyqxmd.com/read/28732248/effects-of-adults-contingent-responding-on-infants-behavior-in-ambiguous-situations
#1
Gunilla Stenberg
We examined the effect of adults' contingency in responding to infants' behavior in an ambiguous situation in two experiments. In Experiment 1, forty-four 12-month-old infants were exposed to an ambiguous toy. An unfamiliar adult responded either contingently or non-contingently to the infant's bids and then presented the toy and provided positive information. During toy presentation, infants in the non-contingent condition looked less at the experimenter than infants in the contingent condition. In a concluding free-play situation infants in the non-contingent condition played less and tended to touch the toy less...
July 18, 2017: Infant Behavior & Development
https://www.readbyqxmd.com/read/28728387/effects-of-environmental-enrichment-on-behaviour-physiology-and-performance-of-pigs-a-review
#2
Mbusiseni Vusumuzi Mkwanazi, Cyprial Ndumiso Ncobela, Arnold Tapera Kanengoni, Michael Chimonyo
The aim of this paper is to critically analyse and synthesise existing knowledge concerning the use of environmental enrichment and its effect on behaviour, physiology and performance of pigs housed in intensive production systems. The objective is also to provide clarity as to what constitute successful enrichment and recommend on when and how enrichment should be used. Environmental enrichment is usually understood as an attempt to improve animal welfare and to lesser extent, performance. Common enrichment objects used are straw bedding, suspended rope and wood shavings, toys, rubber tubing, coloured plastic keys, table tennis balls, chains and strings...
June 26, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28726360/machine-perfusion-in-liver-transplantation-an-essential-treatment-or-just-an-expensive-toy
#3
Andrea A Schlegel, Marit Kalisvaart, Paolo Muiesan
This review focuses on recent developments in preservation techniques in liver transplantation. First, we discuss mechanisms of organ injury when using high-risk organs, including DCD and steatotic grafts and we summarize pathways of ischemia reperfusion injury together with their link to the immune response. Second, we report on improvement strategies of marginal liver grafts by different machine perfusion concepts and summarize perfusion approaches with recent clinical implementation.
July 20, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28717716/breast-cancer-and-african-ancestry-lessons-learned-at-the-10-year-anniversary-of-the-ghana-michigan-research-partnership-and-international-breast-registry
#4
Evelyn Jiagge, Joseph Kwaku Oppong, Jessica Bensenhaver, Francis Aitpillah, Kofi Gyan, Ishmael Kyei, Ernest Osei-Bonsu, Ernest Adjei, Michael Ohene-Yeboah, Kathy Toy, Karen Eubanks Jackson, Marian Akpaloo, Dorcas Acheampong, Beatrice Antwi, Faustina Obeng Agyeman, Zainab Alhassan, Linda Ahenkorah Fondjo, Osei Owusu-Afriyie, Robert Newman Brewer, Amma Gyamfuah, Barbara Salem, Timothy Johnson, Max Wicha, Sofia Merajver, Celina Kleer, Judy Pang, Emmanuel Amankwaa-Frempong, Azadeh Stark, Francis Abantanga, Lisa Newman, Baffour Awuah
Women with African ancestry in western, sub-Saharan Africa and in the United States represent a population subset facing an increased risk of being diagnosed with biologically aggressive phenotypes of breast cancer that are negative for the estrogen receptor, the progesterone receptor, and the HER2/neu marker. These tumors are commonly referred to as triple-negative breast cancer. Disparities in breast cancer incidence and outcome related to racial or ethnic identity motivated the establishment of the International Breast Registry, on the basis of partnerships between the Komfo Anokye Teaching Hospital in Kumasi, Ghana, the University of Michigan Comprehensive Cancer Center in Ann Arbor, Michigan, and the Henry Ford Health System in Detroit, Michigan...
October 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28712977/food-marketing-with-movie-character-toys-effects-on-young-children-s-preferences-for-unhealthy-and-healthier-fast-food-meals
#5
Helen Dixon, Philippa Niven, Maree Scully, Melanie Wakefield
This study aimed to test whether movie tie-in premiums (MTIPs) accompanying unhealthy and healthier fast food meals influenced children's meal preferences and their perceptions of these meals. Nine hundred and four Grade 1 and 2 students (aged 5-9 years) from Melbourne, Australia participated in a between-subjects online experiment comprising the following conditions: (A) unhealthy and healthier meals with no MTIP (control); (B) unhealthy and healthier meals with MTIP (current situation in Australia); (C) unhealthy meals with MTIP and healthier meals without MTIP; (D) unhealthy meals without MTIP and healthier meals with MTIP...
July 13, 2017: Appetite
https://www.readbyqxmd.com/read/28709324/geometric-structure-and-information-change-in-phase-transitions
#6
Eun-Jin Kim, Rainer Hollerbach
We propose a toy model for a cyclic order-disorder transition and introduce a geometric methodology to understand stochastic processes involved in transitions. Specifically, our model consists of a pair of forward and backward processes (FPs and BPs) for the emergence and disappearance of a structure in a stochastic environment. We calculate time-dependent probability density functions (PDFs) and the information length L, which is the total number of different states that a system undergoes during the transition...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28709277/rattleback-dynamics-and-its-reversal-time-of-rotation
#7
Yoichiro Kondo, Hiizu Nakanishi
A rattleback is a rigid, semielliptic toy which exhibits unintuitive behavior; when it is spun in one direction, it soon begins pitching and stops spinning, then it starts to spin in the opposite direction, but in the other direction, it seems to spin just steadily. This puzzling behavior results from the slight misalignment between the principal axes for the inertia and those for the curvature; the misalignment couples the spinning with the pitching and the rolling oscillations. It has been shown that under the no-slip condition and without dissipation the spin can reverse in both directions, and Garcia and Hubbard obtained the formula for the time required for the spin reversal t_{r} [Proc...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28707100/improving-safe-sleep-modeling-in-the-hospital-through-policy-implementation
#8
Rachel Heitmann, Ester K Nilles, Ashley Jeans, Jackie Moreland, Chris Clarke, Morgan F McDonald, Michael D Warren
Introduction Sleep-related infant deaths are major contributors to Tennessee's high infant mortality rate. The purpose of this initiative was to evaluate the impact of policy-based efforts to improve modeling of safe sleep practices by health care providers in hospital settings across Tennessee. Methods Safe sleep policies were developed and implemented at 71 hospitals in Tennessee. Policies, at minimum, were required to address staff training on the American Academy of Pediatrics' safe sleep recommendations, correct modeling of infant safe sleep practices, and parent education...
July 13, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28702755/the-influence-of-breed-and-environmental-factors-on-social-and-solitary-play-in-dogs-canis-lupus-familiaris
#9
Lindsay R Mehrkam, Nathaniel J Hall, Chelsea Haitz, Clive D L Wynne
The domestic dog is an ideal model species in which to study the genetic and environmental factors that influence play behavior. Dogs exist in a wide variety of breeds and frequently engage in multiple forms of play. In the present study, we investigated whether the levels of solitary and social play differed between dogs of three breed types with distinct predatory motor pattern sequences (herding dogs, retrievers, and livestock guarding dogs [LGDs]). Furthermore, we investigated how environmental factors (social and nonsocial contexts) influenced play in dogs of these breed types...
July 12, 2017: Learning & Behavior
https://www.readbyqxmd.com/read/28702059/preferences-and-choices-of-a-child-concerning-the-environment-in-a-pediatric-dental-operatory
#10
Trophimus Gnanabagyan Jayakaran, C Vishnu Rekha, Sankar Annamalai, Parisa Norouzi Baghkomeh, D Ditto Sharmin
BACKGROUND: The aim of this cross-sectional descriptive study was to determine children's preferences in a dental clinic so as to reduce anxiety during dental procedures. In this study survey methodology was used. MATERIALS AND METHODS: A questionnaire was designed to evaluate the child's preference in a dental hospital so as to remove anxiety during a dental procedure. This study was carried out on 50 children aged 6-10 years. The children were randomly selected based on their first dental visit in a private dental college...
May 2017: Dental Research Journal
https://www.readbyqxmd.com/read/28701971/facilitating-social-play-for-children-with-pdds-effects-of-paired-robotic-devices
#11
Soichiro Matsuda, Eleuda Nunez, Masakazu Hirokawa, Junichi Yamamoto, Kenji Suzuki
Interacting with toys and other people is fundamental for developing social communication skills. However, children with autism spectrum disorder (ASD) are characterized by having a significant impairment in social interaction, which often leads to deficits in play skills. For this reason, methods of teaching play skills to young children with ASD have been well documented. Although previous studies have examined a variety of instructional strategies for teaching skills, few studies have evaluated the potential of using robotic devices...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28697162/pediatric-orbeez-ingestions-reported-to-texas-poison-centers
#12
Mathias B Forrester
OBJECTIVES: There is concern that ingestion of superabsorbent polymer toys, which can absorb large amounts of fluid and increase greatly in volume, may pose a risk if swallowed by children.The intent of this study was to characterize pediatric Orbeez ingestions reported to a statewide poison center system. METHODS: Cases were Orbeez ingestions among patients 19 years or younger reported to Texas poison centers during January 2011 to June 2016. The distribution by various demographic and clinical factors was determined...
July 11, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28695232/resolving-the-chemical-structures-of-off-odorants-and-potentially-harmful-substances-in-toys-example-of-children-s-swords
#13
Philipp Denk, Cristina Velasco-Schön, Andrea Buettner
Most children's toys on the market are primarily made out of plastic and other complex composite materials. Consumer complaints about offensive odors or irritating effects associated with toy products have increased in recent years. One example is the strongly perceivable negative odor reported for a particular series of toy swords. Characterizing the presence of contaminants, including those that have the potential to be deleterious to health, in such products is a significant analytical challenge due to the high baseline abundance of chemical constituents of the materials used in the products...
July 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28692449/fidget-spinners-purported-benefits-adverse-effects-and-accepted-alternatives
#14
Rachel A Schecter, Jay Shah, Kate Fruitman, Ruth Lynn Milanaik
PURPOSE OF REVIEW: In the span of a few months, fidget spinners have caught the eyes of millions of children, parents, educators and paediatricians. Fidget spinners, hand-held toys designed to spin freely in your grasp, have become a source of entertainment for consumers of all ages. Despite a lack of scientific evidence, toy marketers have advertised the benefits of fidget spinners for children with attention-deficit/hyperactivity disorder and other disorders (e.g. autism, anxiety, sensory issues)...
July 7, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28686883/does-contingency-in-adults-responding-influence-12-month-old-infants-social-referencing
#15
Gunilla Stenberg
In two experiments we examined the influence of contingent versus non-contingent responding on infant social referencing behavior. EXPERIMENT 1: Forty 12-month-old infants were exposed to an ambiguous toy in a social referencing situation. In one condition an unfamiliar adult who in a previous play situation had responded contingently to the infant's looks gave the infant positive information about the toy. In the other condition an unfamiliar adult who previously had not responded contingently delivered the positive information...
July 4, 2017: Infant Behavior & Development
https://www.readbyqxmd.com/read/28686462/a-logic-for-checking-the-probabilistic-steady-state-properties-of-reaction-networks
#16
Vincent Picard, Anne Siegel, Jérémie Bourdon
Designing probabilistic reaction models and determining their stochastic kinetic parameters are major issues in systems biology. To assist in the construction of reaction network models, we introduce a logic that allows one to express asymptotic properties about the steady-state stochastic dynamics of a reaction network. Basically, the formulas can express properties on expectancies, variances, and covariances. If a formula encoding for experimental observations on the system is not satisfiable, then the reaction network model can be rejected...
July 7, 2017: Journal of Computational Biology: a Journal of Computational Molecular Cell Biology
https://www.readbyqxmd.com/read/28682971/loop-ileostomy-closure-as-an-overnight-procedure-institutional-comparison-with-the-national-surgical-quality-improvement-project-data-set
#17
Nicholas G Berger, Raymond Chou, Elliot S Toy, Kirk A Ludwig, Timothy J Ridolfi, Carrie Y Peterson
BACKGROUND: Enhanced recovery pathways have decreased length of stay after colorectal surgery. Loop ileostomy closure remains a challenge, because patients experience high readmission rates, and validation of enhanced recovery pathways has not been demonstrated. This study examined a protocol whereby patients were discharged on the first postoperative day and instructed to advance their diet at home with close telephone follow-up. OBJECTIVE: The hypothesis was that patients can be safely discharged the day after loop closure, leading to shorter length of stay without increased rates of readmission or complications...
August 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28678703/enforcing-co-expression-within-a-brain-imaging-genomics-regression-framework
#18
Pascal Zille, Vince D Calhoun, Yu-Ping Wang
Among the challenges arising in brain imaging genetic studies, estimating the potential links between neurological and genetic variability within a population is key. In this work, we propose a multivariate, multimodal formulation for variable selection that leverages co-expression patterns across various data modalities. Our approach is based on an intuitive combination of two widely used statistical models: sparse regression and canonical correlation analysis (CCA). While the former seeks multivariate linear relationships between a given phenotype and associated observations, the latter searches to extract co-expression patterns between sets of variables belonging to different modalities...
June 28, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28676535/outcomes-in-a-nurse-led-peripherally-inserted-central-catheter-program-a-retrospective-cohort-study
#19
Sheryl McDiarmid, Nicholas Scrivens, Marc Carrier, Elham Sabri, Baldwin Toye, Lothar Huebsch, Dean Fergusson
BACKGROUND: Peripherally inserted central catheters (PICCs) provide enormous benefit to patients. However, recent publications have highlighted relatively high PICC-associated complication rates. We report on patient and device outcomes from a nurse-led program. METHODS: We performed a retrospective analysis of a prospective cohort of consecutive patients undergoing PICC insertion at The Ottawa Hospital between Jan. 1, 2013 and Dec. 31, 2014. Of the 8314 BioFlo PASV PICCs inserted, we randomly selected a sample of 700 and obtained a complete data set for 656...
June 30, 2017: CMAJ Open
https://www.readbyqxmd.com/read/28673117/using-a-social-robot-to-teach-gestural-recognition-and-production-in-children-with-autism-spectrum-disorders
#20
Wing-Chee So, Miranda Kit-Yi Wong, Carrie Ka-Yee Lam, Wan-Yi Lam, Anthony Tsz-Fung Chui, Tsz-Lok Lee, Hoi-Man Ng, Chun-Hung Chan, Daniel Chun-Wing Fok
While it has been argued that children with autism spectrum disorders are responsive to robot-like toys, very little research has examined the impact of robot-based intervention on gesture use. These children have delayed gestural development. We used a social robot in two phases to teach them to recognize and produce eight pantomime gestures that expressed feelings and needs. Compared to the children in the wait-list control group (N = 6), those in the intervention group (N = 7) were more likely to recognize gestures and to gesture accurately in trained and untrained scenarios...
July 4, 2017: Disability and Rehabilitation. Assistive Technology
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