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https://www.readbyqxmd.com/read/28425678/thinking-about-quantity-the-intertwined-development-of-spatial-and-numerical-cognition
#1
Nora S Newcombe, Susan C Levine, Kelly S Mix
No abstract text is available yet for this article.
May 2017: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/28417252/effects-of-parental-monitoring-and-knowledge-on-substance-use-and-hiv-risk-behaviors-among-young-men-who-have-sex-with-men-results-from-three-studies
#2
Brian Mustanski, Gregory Swann, Michael E Newcomb, Nikhil Prachand
Young men who have sex with men (YMSM) are disproportionately impacted by HIV/AIDS and have elevated rates of substance use. Parenting practices, such as knowledge of child whereabouts and monitoring of behavioral rules, protect against these outcomes among heterosexual youth. This article examined the relationship between these parenting practices and substance use and HIV risk behaviors among YMSM. Data are reported from three similar studies of YMSM: ChiGuys (ages 14-18), Crew 450 (ages 16-22), and RADAR (ages 16-29)...
April 17, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28414496/impaired-psychomotor-function-and-plasma-methadone-and-levo-alpha-acetylmethadol-laam-concentrations-in-opioid-substitution-patients
#3
David A L Newcombe, Andrew A Somogyi, Felix Bochner, Jason M White
Tolerance to the psychomotor impairing effects of opioid drugs is expected to develop with repeated dosing, but may be incomplete. The relationship between plasma opioid concentration and psychomotor function in opioid-dependent patients was examined to determine whether impairment was more likely at the time of highest plasma drug concentration. Sixteen patients participating in a cross-over trial comparing methadone and LAAM completed a tracking task (OSPAT) 11 times over the dosing-interval for methadone (24-hrs) and LAAM (48-hrs)...
April 17, 2017: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28414316/tuning-crystallization-pathways-through-sequence-engineering-of-biomimetic-polymers
#4
Xiang Ma, Shuai Zhang, Fang Jiao, Christina J Newcomb, Yuliang Zhang, Arushi Prakash, Zhihao Liao, Marcel D Baer, Christopher J Mundy, James Pfaendtner, Aleksandr Noy, Chun-Long Chen, James J De Yoreo
Two-step nucleation pathways in which disordered, amorphous, or dense liquid states precede the appearance of crystalline phases have been reported for a wide range of materials, but the dynamics of such pathways are poorly understood. Moreover, whether these pathways are general features of crystallizing systems or a consequence of system-specific structural details that select for direct versus two-step processes is unknown. Using atomic force microscopy to directly observe crystallization of sequence-defined polymers, we show that crystallization pathways are indeed sequence dependent...
April 17, 2017: Nature Materials
https://www.readbyqxmd.com/read/28413270/the-effect-of-perioperative-esmolol-on-early-postoperative-pain-a-systematic-review-and-meta-analysis
#5
REVIEW
Richard Watts, Venkatesan Thiruvenkatarajan, Marni Calvert, Graeme Newcombe, Roelof M van Wijk
Esmolol has been shown to improve postoperative pain and reduce opioid requirements. The aim of this systematic review was to evaluate the effect of perioperative esmolol as an adjunct on early postoperative pain intensity, recovery profile, and anesthetic requirement. Databases were searched for randomized placebo-controlled trials evaluating the effects of esmolol during general anesthesia. Primary outcomes were related to early postoperative pain whereas secondary outcomes were related to emergence time, postoperative nausea and vomiting, and intraoperative anesthetic requirement...
January 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28403768/australian-transplant-recipients-are-at-risk-of-chronic-hepatitis-e
#6
James P Newcombe, Stella McGinn, Bruce Wong, Archie Darbar, George Kotsiou
No abstract text is available yet for this article.
April 17, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28394182/medex2015-greater-sea-level-fitness-is-associated-with-lower-sense-of-effort-during-himalayan-trekking-without-worse-acute-mountain-sickness
#7
Gabriella M K Rossetti, Jamie H Macdonald, Matthew Smith, Anna R Jackson, Nigel Callender, Hannah K Newcombe, Heather M Storey, Sebastian Willis, Jojanneke van den Beukel, Jonathan Woodward, James Pollard, Benjamin Wood, Victoria Newton, Jana Virian, Owen Haswell, Samuel J Oliver
Rossetti, Gabriella M.K., Jamie H. Macdonald, Matthew Smith, Anna R. Jackson, Nigel Callender, Hannah K. Newcombe, Heather M. Storey, Sebastian Willis, Jojanneke van den Beukel, Jonathan Woodward, James Pollard, Benjamin Wood, Victoria Newton, Jana Virian, Owen Haswell, and Samuel J. Oliver. MEDEX2015: Greater sea-level fitness is associated with lower sense of effort during Himalayan trekking without worse acute mountain sickness. High Alt Med Biol 00:000-000, 2017.-This study examined the complex relationships of fitness and hypoxic sensitivity with submaximal exercise responses and acute mountain sickness (AMS) at altitude...
April 10, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28393282/trajectories-of-internalized-heterosexism-among-young-men-who-have-sex-with-men
#8
Jae A Puckett, Brian A Feinstein, Michael E Newcomb, Brian Mustanski
Minority stress, or the unique stressors encountered by sexual minorities, has a significant impact on the mental health and well-being of this population. One minority stressor, internalized heterosexism, refers to incorporating stigma against sexual minorities into one's self-concept as a product of social bias. This minority stressor has been consistently related to worse mental health in sexual minorities. We evaluated experiences of internalized heterosexism longitudinally, over 24 months, in a sample of 450 young men who have sex with men (YMSM; age range = 16-20 years old at baseline)...
April 9, 2017: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/28367501/using-analogy-to-learn-about-phenomena-at-scales-outside-human-perception
#9
Ilyse Resnick, Alexandra Davatzes, Nora S Newcombe, Thomas F Shipley
Understanding and reasoning about phenomena at scales outside human perception (for example, geologic time) is critical across science, technology, engineering, and mathematics. Thus, devising strong methods to support acquisition of reasoning at such scales is an important goal in science, technology, engineering, and mathematics education. In two experiments, we examine the use of analogical principles in learning about geologic time. Across both experiments we find that using a spatial analogy (for example, a time line) to make multiple alignments, and keeping all unrelated components of the analogy held constant (for example, keep the time line the same length), leads to better understanding of the magnitude of geologic time...
2017: Cognitive Research: Principles and Implications
https://www.readbyqxmd.com/read/28346484/a-neighborhood-wide-association-study-nwas-example-of-prostate-cancer-aggressiveness
#10
Shannon M Lynch, Nandita Mitra, Michelle Ross, Craig Newcomb, Karl Dailey, Tara Jackson, Charnita M Zeigler-Johnson, Harold Riethman, Charles C Branas, Timothy R Rebbeck
PURPOSE: Cancer results from complex interactions of multiple variables at the biologic, individual, and social levels. Compared to other levels, social effects that occur geospatially in neighborhoods are not as well-studied, and empiric methods to assess these effects are limited. We propose a novel Neighborhood-Wide Association Study(NWAS), analogous to genome-wide association studies(GWAS), that utilizes high-dimensional computing approaches from biology to comprehensively and empirically identify neighborhood factors associated with disease...
2017: PloS One
https://www.readbyqxmd.com/read/28340513/mendelian-randomisation-implicates-hyperlipidaemia-as-a-risk-factor-for-colorectal-cancer
#11
Henry Rodriguez-Broadbent, Philip J Law, Amit Sud, Kimmo Palin, Sari Tuupanen, Alexandra Gylfe, Ulrika A Hänninen, Tatiana Cajuso, Tomas Tanskanen, Johanna Kondelin, Eevi Kaasinen, Antti-Pekka Sarin, Samuli Ripatti, Johan G Eriksson, Harri Rissanen, Paul Knekt, Eero Pukkala, Pekka Jousilahti, Veikko Salomaa, Aarno Palotie, Laura Renkonen-Sinisalo, Anna Lepistö, Jan Böhm, Jukka-Pekka Mecklin, Nada A Al-Tassan, Claire Palles, Lynn Martin, Ella Barclay, Susan M Farrington, Maria N Timofeeva, Brian F Meyer, Salma M Wakil, Harry Campbell, Christopher G Smith, Shelley Idziaszczyk, Timothy S Maughan, Richard Kaplan, Rachel Kerr, David Kerr, Michael N Passarelli, Jane C Figueiredo, Daniel D Buchanan, Aung K Win, John L Hopper, Mark A Jenkins, Noralane M Lindor, Polly A Newcomb, Steven Gallinger, David Conti, Fred Schumacher, Graham Casey, Lauri A Aaltonen, Jeremy P Cheadle, Ian P Tomlinson, Malcolm G Dunlop, Richard S Houlston
While elevated blood cholesterol has been associated with an increased risk of colorectal cancer (CRC) in observational studies, causality is uncertain. Here we apply a Mendelian randomisation (MR) analysis to examine the potential causal relationship between lipid traits and CRC risk. We used single nucleotide polymorphisms (SNPs) associated with blood levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL), and high-density lipoprotein (HDL) as instrumental variables (IV). We calculated MR estimates for each risk factor with CRC using SNP-CRC associations from 9,254 cases and 18,386 controls...
March 24, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28332107/mechanisms-driving-gender-differences-in-asthma
#12
REVIEW
Hubaida Fuseini, Dawn C Newcomb
PURPOSE OF REVIEW: Many phenotypes of asthma exist, ranging from mild asthma with onset during childhood to severe asthma with later onset, making asthma a broad disease with different pathologies. A gender disparity exists in asthma prevalence. As adults, women have an increased asthma prevalence compared to men. Further, women are more likely to have severe asthma and a later onset of asthma compared to men. Here, we review clinical and animal studies that have defined the role of sex hormones in airway inflammation, smooth muscle contraction, mucus production, and airway mechanics associated with asthma pathogenesis...
March 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28325125/pregnancy-complicated-by-foetal-abdominal-mass-fetiform-teratoma-versus-foetus-in-fetu
#13
Laura K Newcomb, Eleanor H J Rhee, Sarah M Bean, Jina Kim, Elisabeth T Tracy, Jeffrey A Kuller
No abstract text is available yet for this article.
March 21, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28322247/tricyclic-antidepressants-promote-ceramide-accumulation-to-regulate-collagen-production-in-human-hepatic-stellate-cells
#14
Jennifer Y Chen, Benjamin Newcomb, Chan Zhou, Joshua V Pondick, Sarani Ghoshal, Samuel R York, Daniel L Motola, Nicolas Coant, Jae Kyo Yi, Cungui Mao, Kenneth K Tanabe, Irina Bronova, Evgeny V Berdyshev, Bryan C Fuchs, Yusuf Hannun, Raymond T Chung, Alan C Mullen
Activation of hepatic stellate cells (HSCs) in response to injury is a key step in hepatic fibrosis, and is characterized by trans-differentiation of quiescent HSCs to HSC myofibroblasts, which secrete extracellular matrix proteins responsible for the fibrotic scar. There are currently no therapies to directly inhibit hepatic fibrosis. We developed a small molecule screen to identify compounds that inactivate human HSC myofibroblasts through the quantification of lipid droplets. We screened 1600 compounds and identified 21 small molecules that induce HSC inactivation...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28295283/novel-colon-cancer-susceptibility-variants-identified-from-a-genome-wide-association-study-in-african-americans
#15
Hansong Wang, Stephanie L Schmit, Christopher A Haiman, Temitope O Keku, Ikuko Kato, Julie R Palmer, David van den Berg, Lynne R Wilkens, Terrilea Burnett, David V Conti, Fredrick R Schumacher, Lisa B Signorello, William J Blot, Krista A Zanetti, Curtis Harris, Mala Pande, Sonja I Berndt, Polly A Newcomb, Dee W West, Robert Haile, Daniel O Stram, Jane C Figueiredo, Loïc Le Marchand
Genome-wide association studies (GWAS) in ethnic/racial minority populations can help to fine-map previously identified risk regions or discover new risk loci because of the genetic diversity in these populations. We conducted a GWAS of colorectal cancer (CRC) in 6,597 African Americans (1,894 cases and 4,703 controls) (Stage 1) and followed up the most promising markers in a replication set of 2,041 participants of African descent (891 cases and 1,150 controls) (Stage 2). We identified a novel variant, rs56848936 in the gene SYMPK at 19q13...
March 13, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28293679/research-conference-summary-from-the-2014-international-task-force-on-atp1a3-related-disorders
#16
Hendrik Rosewich, Matthew T Sweney, Suzanne DeBrosse, Kevin Ess, Laurie Ozelius, Eva Andermann, Frederick Andermann, Gene Andrasco, Alice Belgrade, Allison Brashear, Sharon Ciccodicola, Lynn Egan, Alfred L George, Aga Lewelt, Joshua Magelby, Mario Merida, Tara Newcomb, Vicky Platt, Dominic Poncelin, Sandra Reyna, Masayuki Sasaki, Marcio Sotero de Menezes, Kathleen Sweadner, Louis Viollet, Mary Zupanc, Kenneth Silver, Kathryn Swoboda
OBJECTIVE: ATP1A3-related neurologic disorders encompass a broad range of phenotypes that extend well beyond initial phenotypic criteria associated with alternating hemiplegia of childhood (AHC) and rapid-onset dystonia parkinsonism. METHODS: In 2014, the Alternating Hemiplegia of Childhood Foundation hosted a multidisciplinary workshop intended to address fundamental challenges surrounding the diagnosis and management of individuals with ATP1A3-related disorders...
April 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28285237/an-adaptive-cue-combination-model-of-human-spatial-reorientation
#17
Yang Xu, Terry Regier, Nora S Newcombe
Previous research has proposed an adaptive cue combination view of the development of human spatial reorientation (Newcombe & Huttenlocher, 2006), whereby information from multiple sources is combined in a weighted fashion in localizing a target, as opposed to being modular and encapsulated (Hermer & Spelke, 1996). However, no prior work has formalized this proposal and tested it against existing empirical data. We propose a computational model of human spatial reorientation that is motivated by probabilistic approaches to optimal perceptual cue integration (e...
March 9, 2017: Cognition
https://www.readbyqxmd.com/read/28272187/life-interrupted-the-trauma-caregiver-experience
#18
Anna B Newcomb, Robert A Hymes
Traumatic injury frequently leads to an abrupt change in physical and psychological functioning; informal caregivers play a significant role in the recovery process in the hospital and at home. The purpose of this study was to describe the range of stressors and burdens experienced by orthopedic trauma family caregivers in the acute care setting, as well as responses and strategies employed. Qualitative, in-depth interviews were conducted in the hospital with 12 family caregivers of severely injured orthopedic trauma patients...
March 2017: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
https://www.readbyqxmd.com/read/28269711/improving-odorant-chemical-class-prediction-with-multi-layer-perceptrons-using-temporal-odorant-spike-responses-from-drosophila-melanogaster-olfactory-receptor-neurons
#19
Luqman R Bachtiar, Richard D Newcomb, Andrew V Kralicek, Charles P Unsworth
In this work, we examine the possibility of improving the prediction performance of an olfactory biosensor through the use of temporal spiking data. We present an Artificial Neural Network (ANN), in the form of an optimal hybrid Multi-Layer Perceptron (MLP) system for the classification of chemical odorants from olfactory receptor neuron spike responses of the Drosophila melanogaster fruit fly (DmOrs). The data used in this study contains the responses to 34 odorants from 6 individual DmOrs, of which we exploit the temporal spiking responses of a 500ms odorant stimulus window...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28256097/the-ontogeny-of-relational-memory-and-pattern-separation
#20
Chi T Ngo, Nora S Newcombe, Ingrid R Olson
Episodic memory relies on memory for the relations among multiple elements of an event and the ability to discriminate among similar elements of episodes. The latter phenomenon, termed pattern separation, has been studied mainly in young and older adults with relatively little research on children. Building on prior work with young children, we created an engaging computer-administered relational memory task assessing what-where relations. We also modified the Mnemonic Similarity Task used to assess pattern discrimination in young and older adults for use with preschool children...
March 2, 2017: Developmental Science
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