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https://www.readbyqxmd.com/read/28633418/detecting-and-removing-multiplicative-spatial-bias-in-high-throughput-screening-technologies
#1
Iurie Caraus, Bogdan Mazoure, Robert Nadon, Vladimir Makarenkov
Motivation: Considerable attention has been paid recently to improve data quality in high-throughput screening (HTS) and high-content screening (HCS) technologies widely used in drug development and chemical toxicity research. However, several environmentally- and procedurally-induced spatial biases in these screens decrease measurement accuracy, leading to increased numbers of false positives and false negatives in hit selection. Although effective bias correction methods and software have been developed over the past decades, almost all of these tools have been designed to reduce the effect of additive bias only...
June 15, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28632251/effects-of-nurse-led-telephone-based-supportive-interventions-for-patients-with-cancer-a-meta-analysis
#2
Soon-Rim Suh, Myung Kyung Lee
PROBLEM IDENTIFICATION: To evaluate the effects of nurse-led telephone-based supportive interventions (NTSIs) for patients with cancer.
. LITERATURE SEARCH: Electronic databases, including EMBASE®, MEDLINE, Google Scholar, 
Cochrane Library CENTRAL, ProQuest Medical Library, and CINAHL®, were searched through February 2016.
. DATA EVALUATION: 239 studies were identified; 16 were suitable for meta-analysis. Cochrane's risk of bias tool and the Comprehensive Meta-Analysis software were used...
July 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28631099/discontinuation-of-pharmacological-treatment-of-children-and-adolescents-with-attention-deficit-hyperactivity-disorder-meta-analysis-of-63-studies-enrolling-11-788-patients
#3
M Riera, X Castells, A Tobias, R Cunill, L Blanco, D Capellà
BACKGROUND: The risk-benefit balance of pharmacological treatment for children and adolescents with ADHD and the factors that moderate this relationship are unclear. METHODS: A systematic review and meta-analysis of randomised, placebo-controlled clinical trials (RPCCTs) investigating the efficacy of pharmacological treatment in children or adolescents with ADHD was carried out. Meta-analysis of treatment discontinuation, clinician-, parent- and teacher-rated efficacy and adverse events was performed...
June 19, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28627913/effect-of-attentional-retraining-on-cognition-craving-and-smoking-in-african-american-smokers
#4
Cendrine D Robinson, Christine Muench, Emily Brede, Romano Endrighi, Edwin H Szeto, Joanna R Sells, John P Lammers, Kolawole S Okuyemi, Andrew J Waters
African American cigarette smokers have lower rates of cessation than Whites and live in communities with a higher number of tobacco advertisements. Exposure to smoking cues may promote smoking and undermine cessation. It may be possible to reduce attention to smoking cues ("attentional bias"). In this study, we investigated the effect of attentional retraining (AR) on attentional bias and smoking in African American smokers. Nontreatment- seeking African American smokers (N = 64) were randomly assigned to an AR or control condition...
June 19, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28627289/snap-n-send-a-valid-and-reliable-method-for-assessing-the-energy-intake-of-elite-adolescent-athletes
#5
Nessan Costello, Kevin Deighton, Joshua Dyson, Jim Mckenna, Ben Jones
To ensure that elite adolescent athletes meet their unique training, growth and maturation demands, it is imperative to have access to valid measures of energy intake. Contemporary methods demand close attention-to-detail, meaning that athletes often do not fully adhere to real-time protocols. This study represents the first investigation of a real-time dietary assessment designed using a comprehensive behaviour change framework (COM-B). In a crossover design, 12 elite adolescent male rugby players recorded their energy intake via an estimated food diary (est-FD) and photography-based mobile assessment ('Snap-n-Send'), combined with a 24-h dietary recall interview...
June 17, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28622351/dna-extraction-replicates-improve-diversity-and-compositional-dissimilarity-in-metabarcoding-of-eukaryotes-in-marine-sediments
#6
Anders Lanzén, Katrine Lekang, Inge Jonassen, Eric M Thompson, Christofer Troedsson
Human impact on marine benthic communities has traditionally been assessed using visible morphological traits and has focused on the macrobenthos, whereas the ecologically important organisms of the meio- and microbenthos have received less attention. DNA metabarcoding offers an alternative to this approach and enables a larger fraction of the biodiversity in marine sediments to be monitored in a cost-efficient manner. Although this methodology remains poorly standardised and challenged by biases inherent to rRNA copy number variation, DNA extraction, PCR, and limitations related to taxonomic identification, it has been shown to be semi-quantitative and useful for comparing taxon abundances between samples...
2017: PloS One
https://www.readbyqxmd.com/read/28622185/a-comprehensive-meta-analysis-of-the-adjacent-segment-parameters-in-cervical-disk-arthroplasty-versus-anterior-cervical-discectomy-and-fusion
#7
Liang Dong, Dongqi Wang, Xiujin Chen, Tuanjing Liu, Zhengwei Xu, Mingsheng Tan, Dingjun Hao
STUDY DESIGN: This is a meta-analysis of controlled trials. OBJECTIVE: To assess the overall condition of adjacent segment of cervical disk arthroplasty (CDA) compared with anterior cervical discectomy and fusion (ACDF). SUMMARY OF BACKGROUND DATA: With the increase in CDA and ACDF, surgeons are taking more attention to adjacent segment degeneration (ASDeg) and adjacent segment disease (ASDis). There are more and more meta-analyses comparing the efficacy of CDA with ACDF, however, there are few meta-analyses referring to adjacent segment parameters, and investigators are still unable to arrive at the same conclusion...
June 15, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28620458/reproducibility2020-progress-and-priorities
#8
REVIEW
Leonard P Freedman, Gautham Venugopalan, Rosann Wisman
The preclinical research process is a cycle of idea generation, experimentation, and reporting of results. The biomedical research community relies on the reproducibility of published discoveries to create new lines of research and to translate research findings into therapeutic applications. Since 2012, when scientists from Amgen reported that they were able to reproduce only 6 of 53 "landmark" preclinical studies, the biomedical research community began discussing the scale of the reproducibility problem and developing initiatives to address critical challenges...
2017: F1000Research
https://www.readbyqxmd.com/read/28620345/memory-for-spatial-locations-in-a-patient-with-near-space-neglect-and-optic-ataxia-involvement-of-the-occipitotemporal-stream
#9
Sergio Chieffi, Giovanni Messina, Antonietta Messina, Ines Villano, Vincenzo Monda, Ferdinando Ivano Ambra, Elisabetta Garofalo, Felice Romano, Maria Pina Mollica, Marcellino Monda, Alessandro Iavarone
Previous studies suggested that the occipitoparietal stream orients attention toward the near/lower space and is involved in immediate reaching, whereas the occipitotemporal stream orients attention toward the far/upper space and is involved in delayed reaching. In the present study, we investigated the role of the occipitotemporal stream in attention orienting and delayed reaching in a patient (GP) with bilateral damage to the occipitoparietal areas and optic ataxia. GP and healthy controls took part in three experiments...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28619523/affective-associations-with-negativity-why-popular-peers-attract-youths-visual-attention
#10
Tessa A M Lansu, Wendy Troop-Gordon
Visual attention to high-status peers is well documented, but whether this attentional bias is due to high-status individuals' leadership and prosocial characteristics or due to their more agonistic behaviors has yet to be examined. To identify the affective associations that may underlie visual attention for high-status versus low-status peers, 122 early adolescents (67 girls; Mage=11.0years, SD=0.7) completed a primed attention paradigm. Visual attention was measured using eye tracking as participants looked simultaneously at photographs of two classmates: one nominated by peers as popular and one nominated by peers as unpopular...
June 12, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28617801/gastrointestinal-adverse-events-during-methylphenidate-treatment-of-children-and-adolescents-with-attention-deficit-hyperactivity-disorder-a-systematic-review-with-meta-analysis-and-trial-sequential-analysis-of-randomised-clinical-trials
#11
Mathilde Holmskov, Ole Jakob Storebø, Carlos R Moreira-Maia, Erica Ramstad, Frederik Løgstrup Magnusson, Helle B Krogh, Camilla Groth, Donna Gillies, Morris Zwi, Maria Skoog, Christian Gluud, Erik Simonsen
OBJECTIVES: To study in more depth the relationship between type, dose, or duration of methylphenidate offered to children and adolescents with attention deficit hyperactivity disorder and their risks of gastrointestinal adverse events based on our Cochrane systematic review. METHODS AND FINDINGS: We use data from our review including 185 randomised clinical trials. Randomised parallel-group trials and cross-over trials reporting gastrointestinal adverse events associated with methylphenidate were included...
2017: PloS One
https://www.readbyqxmd.com/read/28614299/homeostatic-circuits-selectively-gate-food-cue-responses-in-insular-cortex
#12
Yoav Livneh, Rohan N Ramesh, Christian R Burgess, Kirsten M Levandowski, Joseph C Madara, Henning Fenselau, Glenn J Goldey, Veronica E Diaz, Nick Jikomes, Jon M Resch, Bradford B Lowell, Mark L Andermann
Physiological needs bias perception and attention to relevant sensory cues. This process is 'hijacked' by drug addiction, causing cue-induced cravings and relapse. Similarly, its dysregulation contributes to failed diets, obesity, and eating disorders. Neuroimaging studies in humans have implicated insular cortex in these phenomena. However, it remains unclear how 'cognitive' cortical representations of motivationally relevant cues are biased by subcortical circuits that drive specific motivational states. Here we develop a microprism-based cellular imaging approach to monitor visual cue responses in the insular cortex of behaving mice across hunger states...
June 14, 2017: Nature
https://www.readbyqxmd.com/read/28612995/the-patient-perspective-on-remote-monitoring-of-patients-with-an-implantable-cardioverter-defibrillator-narrative-review-and-future-directions
#13
REVIEW
I Timmermans, M Meine, E Zitron, J Widdershoven, G Kimman, S Prevot, T Rauwolf, F Anselme, I Szendey, J Romero Roldán, P Mabo, B Schaer, J Denollet, H Versteeg
BACKGROUND: Studies have shown that remote monitoring (RPM) of implantable cardioverter defibrillators (ICDs) is at least comparable to in-clinic follow-up with regard to clinical outcomes and might be cost-effective, yet RPM is not standard clinical practice within Europe. Better insight into the patient perspective on RPM may aid in its acceptance, implementation and reimbursement. This narrative review 1) summarizes existing evidence on the impact of RPM on patient reported outcomes and 2) discusses future directions in examining the patient perspective...
June 14, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28612504/effect-of-attention-bias-modification-on-brain-function-and-anxiety-in-patients-with-irritable-bowel-syndrome-a-preliminary-electroencephalogram-and-psycho-behavioral-study
#14
J Tayama, T Saigo, S Ogawa, A Takeoka, T Hamaguchi, M Hayashida, S Fukudo, S Shirabe
BACKGROUND: Gastrointestinal symptoms of irritable bowel syndrome (IBS) show a reciprocal relationship with anxiety. In this intervention-based study, we investigated the utility of attention bias modification (ABM) therapy in patients with IBS. We hypothesized that IBS-related electroencephalographic abnormalities would be normalized after ABM therapy. METHODS: Seventeen patients with IBS and 13 healthy subjects completed five ABM intervention sessions over a 2-month period...
June 14, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28610451/cognitive-function-is-largely-intact-in-methadone-maintenance-treatment-patients
#15
Odelia Elkana, Miriam Adelson, Glen M Doniger, Anat Sason, Einat Peles
OBJECTIVES: To confirm our previous findings of less cognitive impairments (based on cognitive screening tools) among Methadone Maintenance Treatment (MMT) patients who achieved take-home dose (THD) privileges. METHODS: a random sample of 65 Israeli MMT patients were studied using computerized, age and education standardized, cognitive domains (attention, executive function, memory, motor skills), and non-computerized phonetic and semantic verbal fluency. Cognitive scores were within ±1 standard deviation (SD) of average for most domains, including non-verbal IQ, attention and motor skills...
June 14, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28609089/light-triggered-ternary-device-and-inverter-based-on-heterojunction-of-van-der-waals-materials
#16
Jaewoo Shim, Seo-Hyeon Jo, Minwoo Kim, Young Jae Song, Jeehwan Kim, Jin-Hong Park
Multivalued logic (MVL) devices/circuits have received considerable attention because the binary logic used in current Si complementary metal-oxide-semiconductor (CMOS) technology cannot handle the predicted information throughputs and energy demands of the future. To realize MVL, the conventional transistor platform needs to be redesigned to have two or more distinctive threshold voltages (VTHs). Here, we report a finding: the photoinduced drain current in graphene/WSe2 heterojunction transistors unusually decreases with increasing gate voltage under illumination, which we refer to as the light-induced negative differential transconductance (L-NDT) phenomenon...
June 13, 2017: ACS Nano
https://www.readbyqxmd.com/read/28608244/action-ability-modulates-time-to-collision-judgments
#17
Eleonora Vagnoni, Vasiliki Andreanidou, Stella F Lourenco, Matthew R Longo
Time-to-collision (TTC) underestimation has been interpreted as an adaptive response that allows observers to have more time to engage in a defensive behaviour. This bias seems, therefore, strongly linked to action preparation. There is evidence that the observer's physical fitness modulates the underestimation effect so that people who need more time to react (i.e. those with less physical fitness) show a stronger underestimation effect. Here we investigated whether this bias is influenced by the momentary action capability of the observers...
June 12, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28607674/gender-bias-in-careseeking-practices-in-57-low-and-middle-income-countries
#18
Janaína Calu Costa, Fernando C Wehrmeister, Aluísio Jd Barros, Cesar G Victora
BACKGROUND: Preventive and curative medical interventions can reduce child mortality. It is important to assess whether there is gender bias in access to these interventions, which can lead to preferential treatment of children of a given sex. METHODS: Data from Demographic and Health Surveys carried out in 57 low- and middle-income countries were used. The outcome variable was a composite careseeking indicator, which represents the proportion of children with common childhood symptoms or illnesses (diarrhea, fever, or suspected pneumonia) who were taken to an appropriate provider...
June 2017: Journal of Global Health
https://www.readbyqxmd.com/read/28607673/risk-factors-for-clostridium-difficile-infections-an-overview-of-the-evidence-base-and-challenges-in-data-synthesis
#19
Paul Eze, Evelyn Balsells, Moe H Kyaw, Harish Nair
BACKGROUND: Recognition of a broad spectrum of disease and development of Clostridium difficile infection (CDI) and recurrent CDI (rCDI) in populations previously considered to be at low risk has renewed attention on differences in the risk profile of patients. In the absence of primary prevention for CDI and limited treatment options, it is important to achieve a deep understanding of the multiple factors that influence the risk of developing CDI and rCDI. METHODS: We conducted a review of systematic reviews and meta-analyses on risk factors for CDI and rCDI published between 1990 and October 2016...
June 2017: Journal of Global Health
https://www.readbyqxmd.com/read/28604053/are-fixations-in-static-natural-scenes-a-useful-predictor-of-attention-in-the-real-world
#20
Tom Foulsham, Alan Kingstone
Research investigating scene perception normally involves laboratory experiments using static images. Much has been learned about how observers look at pictures of the real world and the attentional mechanisms underlying this behaviour. However, the use of static, isolated pictures as a proxy for studying everyday attention in real environments has led to the criticism that such experiments are artificial. We report a new study that tests the extent to which the real world can be reduced to simpler laboratory stimuli...
June 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
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