706 research outputs found

    Sociotropic Voting and the Media

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    The literature on economic voting notes that voters' subjective evaluations of the overall state of the economy are correlated with vote choice, whereas personal economic experiences are not (Kinder and Kiewiet 1979, 1981). Missing from this literature is a description of how voters acquire information about the general state of the economy and use that information to form perceptions. To begin understanding this process, we asked a series of questions on the 2006 ANES Pilot Study about respondents' perceptions of the average price of gas and the unemployment rate in their home states. In this chapter, we analyze both the determinants and political consequences of respondents' perceptions of these economic variables. Questions about gas prices and unemployment show differences in respondents' sources of information about these two economic variables. We found evidence consistent with the idea that information about unemployment rates comes from media sources, and is biased by partisan factors, and that information about gas prices comes only from everyday experiences. While information about both indicators shows effects from demographics, only estimates of unemployment rates are correlated with a respondent's political outlook. Moreover, perceptions of unemployment rates can be used to isolate the effect of economics on partisan preferences

    Mecro-Economic Voting: Local Information and Micro-Perceptions of the Macro-Economy

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    We develop an incomplete information theory of economic voting, where voters' information about macro-economic performance is determined by the economic conditions of people similar to themselves. We test our theory using both cross-sectional and time-series survey data. A novel survey instrument that asks respondents their numerical assessment of the unemployment rate confirms that individuals' economic information responds to the economic conditions of people similar to themselves. Furthermore, these assessments are correlated with individuals' vote choices. We also show in time-series data that state unemployment robustly correlates with evaluations of national economic conditions, and presidential support

    Mecro-Economic Voting: Local Information and Micro-Perceptions of the Macro-Economy

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    We develop an incomplete-information theory of economic voting, where voters' perceptions of macro-economic performance are affected by economic conditions of people similar to themselves. Our theory alleviates two persistent issues in the literature: it shows how egotropic motivations can lead to behavior that appears sociotropic, and why relying exclusively on aggregate data may underestimate the amount of economic voting. We test our theory using both cross-sectional and time series data. We document new stylized facts in aggregate data: state-unemployment is robustly correlated with national economic evaluations and presidential support. A novel survey instrument that asks respondents their numerical assessment of the unemployment rate confirms that individuals' economic perceptions respond to the economic conditions of people similar to themselves. Further, these perceptions associate with individuals' vote choices

    The Effect Of High Intensity Interval Run Training On Cross Sectional Area Of The Vastus Lateralis In Untrained College Students

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    International Journal of Exercise Science 10(1): 137-145, 2017 Aerobic cycling has been repeatedly shown to induce hypertrophy in skeletal muscle across a variety of populations, while there has been a lack of investigation into the impact of running upon hypertrophy. An increasingly popular model of aerobic exercise is high-intensity interval training (HIIT); in addition to its positive impact upon cardiovascular health, HIIT may be sufficient for inducing significant muscular hypertrophy. Therefore, the purpose of this investigation was to examine the influence of a high-intensity interval running protocol upon hypertrophy of the vastus lateralis in an untrained, young population. Twelve recreationally active university students (Male: 2; Female: 10; 19.9±0.5 yr.; 169.8±1.9 cm; 63.8±2.3 kg; VO2max: 42.1±1.6 ml.kg-1min-1) completed 24.5±0.6 sessionsof high-intensity interval run training over 10 weeks. The protocol consisted of four sets of 4 minutes running at 90-95% HRmax followed by 3 minutes active rest at 70% HRmax. Relative and absolute aerobic capacity increased 5.2±2.2% and 6.0±2.3% respectively as a result of the intervention (p\u3c 0.05). Cross-sectional area (CSA) of the vastus lateralis was measured via panoramic ultrasound imaging pre- and post-intervention. Following the protocol, CSA of the intervention group was 10.6±2.7% greater (p\u3c 0.05), while that of the control group did not change. This is the first data to demonstrate hypertrophy of the vastus lateralis in a young population following a running protocol. These data support the existing body of evidence suggesting aerobic exercise to be an effective mode of improving cardiorespiratory fitness as well as increasing whole muscle size of the quadriceps

    The Bronchiectasis Exacerbation Diary:a novel patient-reported outcome for non-cystic fibrosis bronchiectasis

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    Bronchiectasis is a chronic, progressive lung disease believed to result from a vicious cycle of infection and inflammation, with symptoms of chronic cough with sputum production, chronic fatigue, rhinosinusitis, chest pain, breathlessness and haemoptysis. There are currently no established instruments to monitor daily symptoms and exacerbations for use in clinical trials. Following a literature review and three expert clinician interviews, we conducted concept elicitation interviews with 20 patients with bronchiectasis to understand their personal disease experience. Findings from literature and clinician feedback were used to develop a draft version of the Bronchiectasis Exacerbation Diary (BED), which was designed to monitor key symptoms on a daily basis and during exacerbations. Patients were eligible to be interviewed if they were US residents aged ≥18 years, had a computed tomography scan–confirmed diagnosis of bronchiectasis with ≥two exacerbations in the previous 2 years and had no other uncontrolled respiratory conditions. Four waves of five patient interviews each were conducted. Patients (n=20) had a mean±SD age of 53.9±12.8 years, and most were female (85%) and white (85%). A total of 33 symptoms and 23 impacts arose from the patient concept elicitation interviews. The BED was revised and finalised based upon patient feedback. The final BED is a novel, eight-item patient-reported outcome (PRO) instrument for monitoring key exacerbation symptoms on a daily basis with content validity established through comprehensive qualitative research and direct patient insight. The BED PRO development framework will be completed following psychometric evaluations of the data from a phase 3 bronchiectasis clinical trial

    The Disk Substructures at High Angular Resolution Project (DSHARP). II. Characteristics of Annular Substructures

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    The Disk Substructures at High Angular Resolution Project (DSHARP) used ALMA to map the 1.25 mm continuum of protoplanetary disks at a spatial resolution of ~5 au. We present a systematic analysis of annular substructures in the 18 single-disk systems targeted in this survey. No dominant architecture emerges from this sample; instead, remarkably diverse morphologies are observed. Annular substructures can occur at virtually any radius where millimeter continuum emission is detected and range in widths from a few astronomical units to tens of astronomical units. Intensity ratios between gaps and adjacent rings range from near-unity to just a few percent. In a minority of cases, annular substructures coexist with other types of substructures, including spiral arms (3/18) and crescent-like azimuthal asymmetries (2/18). No clear trend is observed between the positions of the substructures and stellar host properties. In particular, the absence of an obvious association with stellar host luminosity (and hence the disk thermal structure) suggests that substructures do not occur preferentially near major molecular snowlines. Annular substructures like those observed in DSHARP have long been hypothesized to be due to planet–disk interactions. A few disks exhibit characteristics particularly suggestive of this scenario, including substructures in possible mean-motion resonance and double gap features reminiscent of hydrodynamical simulations of multiple gaps opened by a planet in a low-viscosity disk

    Evolutionary divergence of gene and protein expression in the brains of humans and chimpanzees

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    Although transcriptomic profiling has become the standard approach for exploring molecular differences in the primate brain, very little is known about how the expression levels of gene transcripts relate to downstream protein abundance. Moreover, it is unknown whether the relationship changes depending on the brain region or species under investigation. We performed high-throughput transcriptomic (RNA-Seq) and proteomic (liquid chromatography coupled with tandem mass spectrometry) analyses on two regions of the human and chimpanzee brain: The anterior cingulate cortex and caudate nucleus. In both brain regions, we found a lower correlation between mRNA and protein expression levels in humans and chimpanzees than has been reported for other tissues and cell types, suggesting that the brain may engage extensive tissue-specific regulation affecting protein abundance. In both species, only a few categories of biological function exhibited strong correlations between mRNA and protein expression levels. These categories included oxidative metabolism and protein synthesis and modification, indicating that the expression levels of mRNA transcripts supporting these biological functions are more predictive of protein expression compared with other functional categories. More generally, however, the two measures of molecular expression provided strikingly divergent perspectives into differential expression between human and chimpanzee brains: mRNA comparisons revealed significant differences in neuronal communication, ion transport, and regulatory processes, whereas protein comparisons indicated differences in perception and cognition, metabolic processes, and organization of the cytoskeleton. Our results highlight the importance of examining protein expression in evolutionary analyses and call for a more thorough understanding of tissue-specific protein expression levels
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