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https://www.readbyqxmd.com/read/28107772/a-preliminary-randomized-controlled-trial-of-contingency-management-for-alcohol-use-reduction-using-a-transdermal-alcohol-sensor
#1
Nancy P Barnett, Mark A Celio, Jennifer W Tidey, James G Murphy, Suzanne M Colby, Robert M Swift
AIMS: We tested the efficacy of daily contingent reinforcement for reducing alcohol use compared with (yoked) noncontingent reinforcement (NR) using a transdermal alcohol sensor to detect alcohol use. DESIGN: Pilot randomized controlled design with one baseline week, three intervention weeks, and one-month follow up. SETTING: New England, USA. PARTICIPANTS: Heavy drinking adults (47% female) not seeking treatment were randomized to 1) an escalating schedule of cash reinforcement (CR; n =15) for days on which alcohol was neither reported nor detected or 2) yoked NR (n =15)...
January 20, 2017: Addiction
https://www.readbyqxmd.com/read/28107163/should-us-physicians-support-the-decriminalization-of-commercial-sex
#2
Emily F Rothman
According to the World Health Organization, "commercial sex" is the exchange of money or goods for sexual services, and this term can be applied to both consensual and nonconsensual exchanges. Some nonconsensual exchanges qualify as human trafficking. Whether the form of commercial sex that is also known as prostitution should be decriminalized is being debated contentiously around the world, in part because the percentage of commercial sex exchanges that are consensual as opposed to nonconsensual, or trafficked, is unknown...
January 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28106308/measuring-expectation-of-pain-contingent-negative-variation-in-placebo-and-nocebo-effects
#3
A Piedimonte, G Guerra, S Vighetti, E Carlino
BACKGROUND: Expectation is an important mechanism underlying placebo response. Here, we analysed expectation of placebo hypoalgesia and nocebo hyperalgesia by using, for the first time, the contingent negative variation (CNV), also known as expectancy wave. METHODS: Subjects were presented a green or red cue followed by a train of either non painful or painful electrical stimuli, and expected hypoalgesia after the green and hyperalgesia after the red cue. In experiment 1, expectation was reinforced using a conditioning procedure whereby the green and red cues were paired with non painful and painful stimuli, respectively (acquisition)...
January 20, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28106139/spatio-temporal-tolerance-of-visuo-tactile-illusions-in-artificial-skin-by-recurrent-neural-network-with-spike-timing-dependent-plasticity
#4
Alexandre Pitti, Ganna Pugach, Philippe Gaussier, Sotaro Shimada
Perceptual illusions across multiple modalities, such as the rubber-hand illusion, show how dynamic the brain is at adapting its body image and at determining what is part of it (the self) and what is not (others). Several research studies showed that redundancy and contingency among sensory signals are essential for perception of the illusion and that a lag of 200-300 ms is the critical limit of the brain to represent one's own body. In an experimental setup with an artificial skin, we replicate the visuo-tactile illusion within artificial neural networks...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105522/response-of-aboveground-carbon-balance-to-long-term-experimental-enhancements-in-precipitation-seasonality-is-contingent-on-plant-community-type-in-cold-desert-rangelands
#5
Kathryn McAbee, Keith Reinhardt, Matthew J Germino, Andrew Bosworth
Semi-arid rangelands are important carbon (C) pools at global scales. However, the degree of net C storage or release in water-limited systems is a function of precipitation amount and timing, as well as plant community composition. In northern latitudes of western North America, C storage in cold-desert ecosystems could increase with boosts in wintertime precipitation, in which climate models predict, due to increases in wintertime soil water storage that enhance summertime productivity. However, there are few long-term, manipulative field-based studies investigating how rangelands will respond to altered precipitation amount or timing...
January 20, 2017: Oecologia
https://www.readbyqxmd.com/read/28104108/persisting-hypocalcemia-after-surgical-parathyroidectomy-the-differential-effectiveness-of-calcium-citrate-versus-calcium-carbonate-with-acid-suppression
#6
Sabahat Afshan, Abdeen R Farah Musa, Vonda Echols, Anna A Lerant, Tibor Fülöp
The effectiveness of oral calcium (Ca) may be contingent on a patient׳s factors beyond compliance, such as proton-pump inhibitor use and the choice of calcium supplements. A 32-year-old Hispanic male with end-stage renal disease on peritoneal dialysis underwent successful surgical parathyroidectomy (intact parathyroid hormone level: 2,328pg/mL; postsurgical: 287-69pg/mL [normal: 8.5-72.5]). His postoperative course was complicated by severe and recurrent hypocalcemia as outpatient and he needed repeated admissions for intravenous Ca gluconate...
January 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28103714/gaze-contingent-music-reward-therapy-for-social-anxiety-disorder-a-randomized-controlled-trial
#7
Amit Lazarov, Daniel S Pine, Yair Bar-Haim
OBJECTIVE: Patients with social anxiety disorder exhibit increased attentional dwelling on social threats, providing a viable target for therapeutics. This randomized controlled trial examined the efficacy of a novel gaze-contingent music reward therapy for social anxiety disorder designed to reduce attention dwelling on threats. METHOD: Forty patients with social anxiety disorder were randomly assigned to eight sessions of either gaze-contingent music reward therapy, designed to divert patients' gaze toward neutral stimuli rather than threat stimuli, or to a control condition...
January 20, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28103414/a-meta-analysis-of-the-association-between-appraisals-of-trauma-and-posttraumatic-stress-in-children-and-adolescents
#8
Ryan Mitchell, Kate Brennan, David Curran, Donncha Hanna, Kevin F W Dyer
Cognitive models of posttraumatic stress disorder (PTSD) place an emphasis on the role of negative appraisals of traumatic events. It is suggested that the way in which the event is appraised determines the extent to which posttraumatic stress symptoms will be experienced. Therefore, a strong relationship between trauma appraisals and symptoms of PTSD might be expected. However, this relationship is not as firmly established in the child and adolescent literature. A systematic literature review of this relationship returned 467 publications, of which 11 met full eligibility criteria...
January 19, 2017: Journal of Traumatic Stress
https://www.readbyqxmd.com/read/28102840/cancer-associated-fibroblasts-enact-field-cancerization-by-promoting-extratumoral-oxidative-stress
#9
Jeremy Soon Kiat Chan, Ming Jie Tan, Ming Keat Sng, Ziqiang Teo, Terri Phua, Chee Chong Choo, Liang Li, Pengcheng Zhu, Nguan Soon Tan
Histological inspection of visually normal tissue adjacent to neoplastic lesions often reveals multiple foci of cellular abnormalities. This suggests the presence of a regional carcinogenic signal that spreads oncogenic transformation and field cancerization. We observed an abundance of mutagenic reactive oxygen species in the stroma of cryosectioned patient tumor biopsies, indicative of extratumoral oxidative stress. Diffusible hydrogen peroxide (H2O2) was elevated in the conditioned medium of cultured skin epithelia at various stages of oncogenic transformation, and H2O2 production increased with greater tumor-forming and metastatic capacity of the studied cell lines...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28101928/are-positive-and-negative-reinforcement-different-insights-from-a-free-operant-differential-outcomes-effect
#10
Michael A Magoon, Thomas S Critchfield, Dustin Merrill, M Christopher Newland, W Joel Schneider
Although theoretical discussions typically assume that positive and negative reinforcement differ, the literature contains little unambiguous evidence that they produce differential behavioral effects. To test whether the two types of consequences control behavior differently, we pitted money-gain positive reinforcement and money-loss-avoidance negative reinforcement, scheduled through identically programmed variable-cycle schedules, against each other in concurrent schedules. Contingencies of response-produced feedback, normally different in positive and negative reinforcement, were made symmetrical...
January 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/28101925/-watch-out-effects-of-instructed-threat-and-avoidance-on-human-free-operant-approach-avoidance-behavior
#11
Michael W Schlund, Kay Treacher, Oli Preston, Sandy K Magee, David M Richman, Adam T Brewer, Gemma Cameron, Simon Dymond
Approach-avoidance paradigms create a competition between appetitive and aversive contingencies and are widely used in nonhuman research on anxiety. Here, we examined how instructions about threat and avoidance impact control by competing contingencies over human approach-avoidance behavior. Additionally, Experiment 1 examined the effects of threat magnitude (money loss amount) and avoidance cost (fixed ratio requirements), whereas Experiment 2 examined the effects of threat information (available, unavailable and inaccurate) on approach-avoidance...
January 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/28099418/il-17-is-a-neuromodulator-of-caenorhabditis-elegans-sensory-responses
#12
Changchun Chen, Eisuke Itakura, Geoffrey M Nelson, Ming Sheng, Patrick Laurent, Lorenz A Fenk, Rebecca A Butcher, Ramanujan S Hegde, Mario de Bono
Interleukin-17 (IL-17) is a major pro-inflammatory cytokine: it mediates responses to pathogens or tissue damage, and drives autoimmune diseases. Little is known about its role in the nervous system. Here we show that IL-17 has neuromodulator-like properties in Caenorhabditis elegans. IL-17 can act directly on neurons to alter their response properties and contribution to behaviour. Using unbiased genetic screens, we delineate an IL-17 signalling pathway and show that it acts in the RMG hub interneurons. Disrupting IL-17 signalling reduces RMG responsiveness to input from oxygen sensors, and renders sustained escape from 21% oxygen transient and contingent on additional stimuli...
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28097716/parental-knowledge-of-antibiotic-use-in-children-with-respiratory-infections-a-systematic-review
#13
REVIEW
Lourdes Cantarero-Arévalo, Mia Pavelics Hallas, Susanne Kaae
OBJECTIVE: Antimicrobial resistance (AMR) is an increasing global problem. AMR threatens the effective prevention and treatment of an ever-increasing range of infections caused by bacteria, parasites, viruses and fungi. The misuse and overuse of antibiotics (AB) is the major contributor to the emergence of resistant bacteria in humans. To present and describe characteristics in parents' knowledge about when and how to use AB for an upper respiratory tract infection (URTI), their attitudes towards doctors and AB use in general, and their behaviour when their child suffers from an URTI...
February 2017: International Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28096419/stromal-cues-regulate-the-pancreatic-cancer-epigenome-and-metabolome
#14
Mara H Sherman, Ruth T Yu, Tiffany W Tseng, Cristovao M Sousa, Sihao Liu, Morgan L Truitt, Nanhai He, Ning Ding, Christopher Liddle, Annette R Atkins, Mathias Leblanc, Eric A Collisson, John M Asara, Alec C Kimmelman, Michael Downes, Ronald M Evans
A fibroinflammatory stromal reaction cooperates with oncogenic signaling to influence pancreatic ductal adenocarcinoma (PDAC) initiation, progression, and therapeutic outcome, yet the mechanistic underpinning of this crosstalk remains poorly understood. Here we show that stromal cues elicit an adaptive response in the cancer cell including the rapid mobilization of a transcriptional network implicated in accelerated growth, along with anabolic changes of an altered metabolome. The close overlap of stroma-induced changes in vitro with those previously shown to be regulated by oncogenic Kras in vivo suggests that oncogenic Kras signaling-a hallmark and key driver of PDAC-is contingent on stromal inputs...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28092814/a-participatory-action-research-study-exploring-women-s-understandings-of-the-concept-of-informed-choice-during-pregnancy-and-childbirth-in-ireland
#15
Denise O'Brien, Michelle M Butler, Mary Casey
OBJECTIVE: to explore women's understandings and definitions of the concept of informed choice during pregnancy and childbirth. METHODS: a three-phase action research approach. In the first phase of the study (reported in this paper), fifteen women were interviewed to establish their understandings and experiences of informed choice. SETTING: Dublin, Ireland in a large maternity hospital. PARTICIPANTS: fifteen postnatal women who gave birth to a live healthy infant, women attended obstetric or midwifery-led care...
January 4, 2017: Midwifery
https://www.readbyqxmd.com/read/28092749/public-value-at-risk-from-phytophthora-ramorum-and-phytophthora-kernoviae-spread-in-england-and-wales
#16
Ben Drake, Glyn Jones
Heritage gardens, heathland and woodland are increasingly under threat from the non-native tree and plant diseases Phytophthora ramorum and Phytophthora kernoviae. However, there exist only limited literature that estimates the public non-market value that may be lost from a continued spread of Phytophthora ramorum and Phytophthora kernoviae into these habitats. This paper therefore uses a contingent valuation survey to assess the non-extractive public use and non-use values at risk from an uncontrolled spread of these diseases in England and Wales...
January 13, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28088674/people-s-reasons-for-wanting-to-complete-probation-use-and-predictive-validity-in-an-e-health-intervention
#17
Stephanie A Spohr, Faye S Taxman, Scott T Walters
The criminal justice system tends to emphasize external contingencies (e.g., fees, jail time) to motivate offender compliance. However, people's reasons for desistance vary considerably. This study evaluated the acceptability, utility, and predictive validity of questions that ask about people's reasons for wanting to successfully complete probation. Substance-using probationers (N=113) participated in a web-based computer intervention that targeted substance use and treatment initiation. Questions around seven dimensions of reasons for completing probation were developed to provide tailored feedback during the web-based program...
January 6, 2017: Evaluation and Program Planning
https://www.readbyqxmd.com/read/28087997/experience-in-action-moderating-care-in-web-based-patient-feedback
#18
Malte Ziewitz
What does it take to mobilise experiences of care and make them useful for improving services? This article draws on ethnographic fieldwork with a UK-based patient feedback website to develop a critical perspective on patient experience as a contingent accomplishment and a focal point for eliciting, provoking, and respecifying relations of accountability. Following a single posting from the moderation room back to the author and into the wards and offices of the hospital, I show how moderators, carers, and clinical staff respond to and act upon a seemingly stable experience...
December 21, 2016: Social Science & Medicine
https://www.readbyqxmd.com/read/28081260/comparative-genome-sequencing-reveals-within-host-genetic-changes-in-neisseria-meningitidis-during-invasive-disease
#19
Johanna Klughammer, Marcus Dittrich, Jochen Blom, Vera Mitesser, Ulrich Vogel, Matthias Frosch, Alexander Goesmann, Tobias Müller, Christoph Schoen
Some members of the physiological human microbiome occasionally cause life-threatening disease even in immunocompetent individuals. A prime example of such a commensal pathogen is Neisseria meningitidis, which normally resides in the human nasopharynx but is also a leading cause of sepsis and epidemic meningitis. Using N. meningitidis as model organism, we tested the hypothesis that virulence of commensal pathogens is a consequence of within host evolution and selection of invasive variants due to mutations at contingency genes, a mechanism called phase variation...
2017: PloS One
https://www.readbyqxmd.com/read/28075012/rare-ecomorphological-convergence-on-a-complex-adaptive-landscape-body-size-and-diet-mediate-evolution-of-jaw-shape-in-squirrels-sciuridae
#20
Miriam Leah Zelditch, Ji Ye, Jonathan S Mitchell, Donald L Swiderski
Convergence is widely regarded as compelling evidence for adaptation, often being portrayed as evidence that phenotypic outcomes are predictable from ecology, overriding contingencies of history. However, repeated outcomes may be very rare unless adaptive landscapes are simple, structured by strong ecological and functional constraints. One such constraint may be a limitation on body size because performance often scales with size, allowing species to adapt to challenging functions by modifying only size. When size is constrained, species might adapt by changing shape; convergent shapes may therefore be common when size is limiting and functions are challenging...
January 11, 2017: Evolution; International Journal of Organic Evolution
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