Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice / Вісник Національного технічного університету "ХПІ". Серія: Проблеми удосконалювання електричних машин і апаратів. Теорія і практика
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Prevalence and characteristics of childfree adults in Michigan (USA)
No full textChildfree individuals choose not to have children, which makes them a distinctive group from parents who have had children, not-yet-parents who plan to have children, and childless indivduals who would have liked to have children. Most research on parental status and psychosocial characteristics has not effectively distinguished childfree individuals from other non-parents or has relied on non-representative samples. In this study, we use a representative sample of 981 Michigan adults to estimate the prevalence of childfree individuals, to examine how childfree individuals differ from parents and other types of non-parents in life satisfaction, political ideology, and personality, and to examine whether childfree individuals are viewed as an outgroup. We find that over a quarter of Michigan adults identified as childfree. After controlling for demographic characteristics, we find no differences in life satisfaction and limited differences in personality traits between childfree individuals and parents, not-yet-parents, or childless individuals. However, childfree individuals were more liberal than parents, and those who have or want(ed) children felt substantially less warm toward childfree individuals than childfree individuals felt toward each other. Given the prevalence of childfree individuals, the risks of their outgroup status, and their potential role in politics as a uniquely liberal group, it is important for demographic research to distinguish the childfree from others and to better understand these individuals
Introducing the COVID-19 crisis Special Education Needs Coping Survey
No full textIndividuals with special education needs have been particularly affected by the COVID-19 pandemic as they have been shown to be at high risk of losing medical and institutional support at a time when people are being asked to stay isolated, suffering increased anxiety and depression as a consequence. Their families have often found themselves under tremendous pressure to provide support, engendering financial hardship, and physical and emotional strains. In such times, it is vital that international collaborations assess the impact on the individuals and their families, affording the opportunity to make national and international comparisons of how people have coped and what needs to be done to optimize the measures taken by families, associations and governments. This paper introduces one such collaboration
Dad Jokes and the Deep Roots of Fatherly Teasing
No full textDad jokes, I argue, are a manifestation of the ancient fatherly impulse to tease one’s children. On the surface, dad jokes are puns that are characterized by only violating a pragmatic norm and nothing else, which makes them lame and unfunny. Only violating a pragmatic norm and nothing else, however, is itself a violation of the norms of joke-telling, which makes dad jokes a type of anti-humor. Fathers (i.e., "dads") may in turn seek to embarrass their children by purposively violating the norms of joke-telling in this way, thus weaponizing the lame pun against their children as a type of good-natured teasing. Given their personality profile, it makes sense that fathers should be particularly prone to weaponize dad jokes teasingly against their children like this, with the phenomenon bearing an illuminating resemblance to the rough-and- tumble play that fathers have engaged their children in since before the dawn of our species
Who engages in the arts in the United States? A comparison of three types of engagement using data from the General Social Survey
No full textEngaging in the arts is a health-related behavior that may be influenced by social inequalities. While it is generally accepted that there is a social gradient in arts participation, previous studies of arts engagement in the US have not used comprehensive measures of engagement and often focus on single demographic or socioeconomic predictors of engagement rather than simultaneously testing a range of factors that may be related to one another. Using cross-sectional data from the General Social Survey (GSS) in the US, we examined which demographic, socioeconomic, residential, and health factors were associated with attendance at arts events, participation in arts activities, and membership of creative groups. We combined data from 1993 to 2016 in three analytical samples with a sample size of 8,684 for arts events, 4,372 for arts activities, and 4,268 for creative groups. Data were analysed using logistic regression. More education was associated with increased levels of all types of arts engagement. Parental education demonstrated a similar association. Being female, compared to male, was also consistently associated with higher levels of engagement. Attendance at arts events was lower in participants with lower income and social class, poorer health, and those living in less urban areas. However, these factors were not associated with engagement in arts activities or creative groups. Overall, we found evidence for a social gradient in attendance at arts events, which was not as pronounced in engagement in arts activities or creative groups. Given the many benefits of engagement in the arts for education, health, and wider welfare, our findings demonstrate the importance of identifying factors to reduce barriers to participation in the arts across all groups in society
Sound source localization in virtual reality with ambisonics sound reproduction
No full textTo reproduce realistic audio-visual scenarios in the laboratory, ambisonics is often used to reproduce a sound field over loudspeakers and virtual reality (VR) glasses are used to present visual information. Both technologies have been shown to be suitable for research. However, the combination of both technologies, ambisonics and VR glasses, might affect the spatial cues for auditory localization and thus, the localization percept. Here, we investigated how VR glasses affect the localization of virtual sound sources on the horizontal plane produced using either 1st, 3rd, 5th or 11th order ambisonics with and without visual information. Results showed that with 1st order ambisonics the localization error is larger than with the higher orders, while the differences across the higher orders were small.
The physical presence of the VR glasses without visual information increased the perceived lateralization of the auditory stimuli by on average about 2°, especially in the right hemisphere. Presenting visual information about the environment and potential sound sources did reduce this HMD-induced shift, however it could not fully compensate for it. While the localization performance itself was affected by the ambisonics order, there was no interaction between the ambisonics order and the effect of the HMD. Thus, the presence of VR glasses can alter acoustic localization when using ambisonics sound reproduction, but visual information can compensate for most of the effects. As such, most use cases for VR will be unaffected by these shifts in the perceived location of auditory stimuli
Evidence of paternal effects on telomere length increases in early-life
No full textOffspring of older parents in many species display decreased longevity, a faster ageing rate and lower fecundity than offspring born to younger parents. Biomarkers, such as telomeres, that tend to shorten as individual age, may provide insight into the mechanisms of parental age effects. Parental age could determine telomere length either through inheritance of shortened telomeres or through indirect effects, such as variation in parental care with parent ages, which in turn might lead to variation in offspring telomere length. There is no current consensus as to the heritability of telomere length, and the direction and extent of parental age effects however. To address this, here we experimentally investigate how parental age is associated with telomere length at two time points in early life in a captive population of house sparrows (Passer domesticus). We experimentally separated parental age from sex effects by allowing the parent birds to only mate with young, or old partners. We found that telomere length of the offspring increased between the age of 0.5 and 3 months at the group and individual level, which has been reported previously predominantly in non-avian taxa. We further show that older fathers produced daughters with a greater early-life increase in telomere length, supporting sex-specific inheritance, and or sex-specific non-genetic effects. Overall, our results highlight the need for more studies testing early-life telomere dynamics and sex-specific heritability of telomere length
Doing Racial Projects in Requests for Police Service: The reproduction of racial common sense in emergency calls
No full textPatterns of racial inequality are well-documented in domains like criminal justice, but the interactional mechanisms that produce these inequalities and constitute race remain underspecified. In this paper, I use conversation analytic research methods to examine police service calls as one site of such mechanisms. Drawing on analysis of 64 police-relevant emergency service calls placed in the United States 2005-2015, I show how the institution of emergency calls relies upon the racial categorization practices of callers and call-takers. I further show that this routine reliance on race opens the door for participants to use racist inferences to make sense of reported complaints. In this way, I illustrate how racial projects are enacted through situated social practices
Psychology and neurobiology of horror movies
No full textThis review covers the neurobiological and psychological aspects of horror movies. Cinema audiences are not exposed to real threats, thus the movie should pass the brain’s “reality check” systems and emotion regulation to engage the fear responses. This can be achieved through vicarious simulation, felt proximity of threats, as well as unpredictability of the fearful events, particularly by using universal sources of fear such as illness or isolation. Acoustic features such as roughness are also threatening, and they can be used for unobtrusively activating the fear circuits. Paradoxical appeal of horror movies stems from universal curiosity towards morbid and threatening subjects, mixing of emotions of fear and excitement in the brain and the capability to learn about dangerous situations safely in the context of movies. These findings are summarized in a conceptual model for eliciting fear through cinema
Observing Many Researchers Using the Same Data and Hypothesis Reveals a Hidden Universe of Uncertainty
No full textThis study explores how researchers’ analytical choices affect the reliability of scientific findings. Most discussions of reliability problems in science focus on systematic biases. We broaden the lens to include conscious and unconscious decisions that researchers make during data analysis and that may lead to diverging results. We coordinated 161 researchers in 73 research teams and observed their research decisions as they used the same data to independently test the same prominent social science hypothesis: that greater immigration reduces support for social policies among the public. In this typical case of research based on secondary data, we find that research teams reported widely diverging numerical findings and substantive conclusions despite identical start conditions. Researchers’ expertise, prior beliefs, and expectations barely predicted the wide variation in research outcomes. More than 90% of the total variance in numerical results remained unexplained even after accounting for research decisions identified via qualitative coding of each team’s workflow. This reveals a universe of uncertainty that is hidden when considering a single study in isolation. The idiosyncratic nature of how researchers’ results and conclusions varied is a new explanation for why many scientific hypotheses remain contested. It calls for greater humility and clarity in reporting scientific findings
Data Overuse in Aging Research: Emerging Issues and Potential Solutions
No full textAging and lifespan development researchers have been fortunate to have public access to many longitudinal datasets. These data are valuable and see high utilization, yet this has a considerable downside. Many of these are heavily overused. Overuse of publicly-available datasets creates dependency among published research papers giving the false impression of independent contributions to knowledge by reporting the same associations over multiple papers. This is a potentially serious problem in the aging literature given the high use of a relatively small number of well-known studies. Any irregularities or unintentional biases in this relatively small number of samples has outsize influence on answers to key aging questions. We detail this problem, focusing on issues of dependency among studies, bias and overfitting, and contradictory estimates of the same effect from the same data in two independent publications. We provide solutions, including greater use of data sharing, pre-registrations, holdout samples, split-sample cross-validation, and coordinated analysis. We argue these valuable datasets are public resources that are being diminished by overuse, with parallels in environmental science. Taking a conservation perspective, we hold that these practices (pre-registration, holdout samples) can preserve data resources for future generations of researchers