Predictors of social support provided to smokers

Over 20% of adults in the U.S. presently smoke cigarettes. The highest rates (28.5%) are among 18-24 year-olds. Therefore, cessation interventions targeting young adults are needed. Cessation efforts and maintained abstinence in smokers have been associated with positive social support from others (i.e., “support persons”) throughout the cessation process. Support persons\u27 attributions about smokers may affect the consistency and amount of support they provide to a smoker during a cessation attempt. The present investigation addressed the relationship between support persons\u27 attribution style and the quality and quantity of support they provided to smokers. College students (N=244) were asked to identify a smoker about whom they were concerned, to report demographic and smoking background information about themselves and the identified smoker, nicotine dependence, perceived positive and negative social support provided, and attributions about their identified smokers\u27 smoking habits. Multivariate analyses of variance (MANOVA) predicting gender, smoking status (p \u3c .10), relationship type (romantic vs. platonic; p \u3c .10), and cohabitating status as the factors indicated nonsignificant trends in differences in amount and quality of social support provided. Those romantically involved with their smokers tended to report providing significantly more positive (p \u3c .05) and marginally less negative support (p \u3c .10) than their respective counterparts. Compared to never-smokers, smokers and ex-smokers provided marginally more negative support (p \u3c .10). Regression analyses revealed that external attributions did not predict self-reported positive support and internal attributions did not predict negative support. These findings suggest the importance of relationship factors in the cessation process and highlight the need for future research in this area

Smoking topography and smoking-related outcome expectancies in smokers with schizotypy

Individuals with schizophrenia have extremely high smoking rates (70-88%). Compared to smokers in the general population, smokers with schizophrenia have more intense smoking patterns (e.g., more cigarettes per day; smoke stronger cigarettes; higher nicotine dependence, carbon monoxide (CO) boosts, cotinine, and nicotine levels; more extreme smoking topography) and more positive smoking outcome expectancies. However, the relationship between smoking and symptomatology is quite complex. Insight might be gleaned by studying the relationship between smoking and schizotypy, or the putative genetic vulnerability to developing schizophrenia, as it avoids many confounds associated with schizophrenia. This study investigated schizotypy symptoms, smoking characteristics and behaviors, and outcome expectancies in undergraduate students with psychometrically identified schizotypy and demographically matched controls without schizotypy. Results from the screening phase revealed no significant differences in schizotypy traits between smokers with schizotypy (n = 77) and nonsmokers with schizotypy (n = 69). Of those who attended the laboratory phase (n = 44), smokers with schizotypy (n = 26) had significantly higher nicotine dependence than control smokers without schizotypy (n = 18). There was also a non-significant trend in which smokers with schizotypy smoked more cigarettes per week. Additionally, results revealed that smokers with schizotypy were more likely than control smokers to endorse more positive consequences (i.e., improved state enhancement, stimulation, social facilitation, taste/sensorimotor manipulation; boredom and negative affect reduction) than negative consequences of smoking. There were no significant differences between smokers with schizotypy and control smokers on smoking behaviors such as smoking topography or CO readings. These preliminary findings offer insight into mechanisms underlying smoking in individuals with schizotypy

African black beetle in vineyards

The African black beetle, Heteronychus arator, is an important pest of horticultural crops, ornamentals and pastures in Western Australia. They also attack lawns and are commonly referred to as the black lawn beetle. This beetle was first recorded in Australia during the 1920s and originates from southern Africa where it is a major establishment pest of maize.https://researchlibrary.agric.wa.gov.au/bulletins/1144/thumbnail.jp

Preserved Statistical Learning of Tonal and Linguistic Material in Congenital Amusia

Congenital amusia is a lifelong disorder whereby individuals have pervasive difficulties in perceiving and producing music. In contrast, typical individuals display a sophisticated understanding of musical structure, even in the absence of musical training. Previous research has shown that they acquire this knowledge implicitly, through exposure to music’s statistical regularities. The present study tested the hypothesis that congenital amusia may result from a failure to internalize statistical regularities – specifically, lower-order transitional probabilities. To explore the specificity of any potential deficits to the musical domain, learning was examined with both tonal and linguistic material. Participants were exposed to structured tonal and linguistic sequences and, in a subsequent test phase, were required to identify items which had been heard in the exposure phase, as distinct from foils comprising elements that had been present during exposure, but presented in a different temporal order. Amusic and control individuals showed comparable learning, for both tonal and linguistic material, even when the tonal stream included pitch intervals around one semitone. However analysis of binary confidence ratings revealed that amusic individuals have less confidence in their abilities and that their performance in learning tasks may not be contingent on explicit knowledge formation or level of awareness to the degree shown in typical individuals. The current findings suggest that the difficulties amusic individuals have with real-world music cannot be accounted for by an inability to internalize lower-order statistical regularities but may arise from other factors

Who Thinks Treaties are Like Contracts? Not John Marshall

Courts in the United States are fond of analogizing treaties to contracts. The U.S. Supreme Court has done so on numerous occasions, as have nearly all federal circuit courts. Indeed, the treaty-as-contract trope has permeated U.S. legal discourse since at least the early 1800s when Chief Justice John Marshall wrote in Foster v. Neilson that “[a] treaty is in its nature a contract between two nations, not a legislative act.

Extracting and re-using research data from chemistry e-theses: the SPECTRa-T project

Scientific e-theses are data-rich resources, but much of the information they contain is not readily accessible. For chemistry, the SPECTRa-T project has addressed this problem by developing data-mining techniques to extract experimental data, creating RDF (Resource Description Framework) triples for exposure to sophisticated Semantic Web searches. We used OSCAR3, an Open Source chemistry text-mining tool, to parse and extract data from theses in PDF, and from theses in Office Open XML document format. Theses in PDF suffered data corruption and a loss of formatting that prevented the identification of chemical objects. Theses in .docx yielded semantically rich SciXML that enabled the additional extraction of associated data. Chemical objects were placed in a data repository, and RDF triples deposited in a triplestore. Data-mining from chemistry e-theses is both desirable and feasible; but the use of PDF, the de facto format standard for deposit in most repositories, prevents the optimal extraction of data for semantic querying. In order to facilitate this, we recommend that universities also require deposition of chemistry e-theses in an XML document format. Further work is required to clarify the complex IPR issues and ensure that they do not become an unwarranted barrier to data extraction and re-use

Music listening evokes story-like visual imagery with both idiosyncratic and shared content

There is growing evidence that music can induce a wide range of visual imagery. To date, however, there have been few thorough investigations into the specific content of music-induced visual imagery, and whether listeners exhibit consistency within themselves and with one another regarding their visual imagery content. We recruited an online sample (N = 353) who listened to three orchestral film music excerpts representing happy, tender, and fearful emotions. For each excerpt, listeners rated how much visual imagery they were experiencing and how vivid it was, their liking of and felt emotional intensity in response to the excerpt, and, finally, described the content of any visual imagery they may have been experiencing. Further, they completed items assessing a number of individual differences including musical training and general visual imagery ability. Of the initial sample, 254 respondents completed the survey again three weeks later. A thematic analysis of the content descriptions revealed three higher-order themes of prominent visual imagery experiences: Storytelling (imagined locations, characters, actions, etc.), Associations (emotional experiences, abstract thoughts, and memories), and References (origins of the visual imagery, e.g., film and TV). Although listeners demonstrated relatively low visual imagery consistency with each other, levels were higher when considering visual imagery content within individuals across timepoints. Our findings corroborate past literature regarding music’s capacity to encourage narrative engagement. It, however, extends it (a) to show that such engagement is highly visual and contains other types of imagery to a lesser extent, (b) to indicate the idiosyncratic tendencies of listeners’ imagery consistency, and (c) to reveal key factors influencing consistency levels (e.g., vividness of visual imagery and emotional intensity ratings in response to music). Further implications are discussed in relation to visual imagery’s purported involvement in music-induced emotions and aesthetic appeal

Elongation Factor TFIIS Prevents Transcription Stress and R-Loop Accumulation to Maintain Genome Stability

Although correlations between RNA polymerase II (RNAPII) transcription stress, R-loops, and genome instability have been established, the mechanisms underlying these connections remain poorly understood. Here, we used a mutant version of the transcription elongation factor TFIIS (TFIISmut), aiming to specifically induce increased levels of RNAPII pausing, arrest, and/or backtracking in human cells. Indeed, TFIISmut expression results in slower elongation rates, relative depletion of polymerases from the end of genes, and increased levels of stopped RNAPII; it affects mRNA splicing and termination as well. Remarkably, TFIISmut expression also dramatically increases R-loops, which may form at the anterior end of backtracked RNAPII and trigger genome instability, including DNA strand breaks. These results shed light on the relationship between transcription stress and R-loops and suggest that different classes of R-loops may exist, potentially with distinct consequences for genome stability.Cancer Research UK FC001166UK Medical Research Council FC001166Wellcome Trust FC001166European Research Council 693327, ERC2014 AdG669898Ministerio de Economía y Competitividad BFU2013-42918-P, BFU2016-75058-