Maize develops separate male and female flowers in different locations on a single plant. Male flowers develop at the tip of the shoot in the tassel, and female flowers develop on the ears, which terminate short branches. The development of male flowers in tassels and female flowers in ears is the result of selective abortion of pistils or stamens, respectively, in developing florets. Genetic analysis has shown that stamen abortion and pistil abortion are under the control of two different genetic (...) pathways. Local levels of the plant hormone gibberellic acid determine whether or not stamens are suppressed. Pistil abortion is under the regulation of the tassel seed genes, one of which has been shown to encode a short‐chain alcohol dehydrogenase. The tassel seed genes play a role in regulating the fate of inflorescence meristems as well as pistil primordium fate. (shrink)

Transcription factor (TF) signaling regulates gene transcription and requires a complex network of proteins. This network includes co‐activators, co‐repressors, multiple TFs, histone‐modifying complexes, and the basal transcription machinery. It has been widely appreciated that pioneer factors, such as FoxA1 and GATA1, play an important role in opening closed chromatin regions, thereby allowing binding of a secondary factor. In this review we will focus on a newly proposed model wherein multiple TFs, such as steroid receptors (SRs), can function in a pioneering (...) role. This model, termed dynamic assisted loading, integrates data from widely divergent methodologies, including genome wide ChIP‐Seq, digital genomic footprinting, DHS‐Seq, live cell protein dynamics, and biochemical studies of ATP‐dependent remodeling complexes, to present a real time view of TF chromatin interactions. Under this view, many TFs can act as initiating factors for chromatin landscape programming. Furthermore, enhancer and promoter states are more accurately described as energy‐dependent, non‐equilibrium steady states. (shrink)

Both target papers cite evidence from infancy and early childhood to support the notion of human musicality as a somewhat static suite of capacities; however, in our view they do not adequately acknowledge the critical role of developmental timing, the acquisition process, or the dynamics of social learning, especially during later periods of development such as middle childhood.

Although Archaea inhabit the human body and possess some characteristics of pathogens, there is a notable lack of pathogenic archaeal species identified to date. We hypothesize that the scarcity of disease‐causing Archaea is due, in part, to mutually‐exclusive phage and virus populations infecting Bacteria and Archaea, coupled with an association of bacterial virulence factors with phages or mobile elements. The ability of bacterial phages to infect Bacteria and then use them as a vehicle to infect eukaryotes may be difficult for (...) archaeal viruses to evolve independently. Differences in extracellular structures between Bacteria and Archaea would make adsorption of bacterial phage particles onto Archaea (i.e. horizontal transfer of virulence) exceedingly hard. If phage and virus populations are indeed exclusive to their respective host Domains, this has important implications for both the evolution of pathogens and approaches to infectious disease control. (shrink)

Fusion genes formed by chromosomal rearrangements are common drivers of cancer. Recent innovations in the field of next‐generation sequencing (NGS) have seen a dynamic shift from traditional fusion detection approaches, such as visual characterization by fluorescence, to more precise multiplexed methods. There are many different NGS‐based approaches to fusion gene detection and deciding on the most appropriate method can be difficult. Beyond the experimental approach, consideration needs to be given to factors such as the ease of implementation, processing time, associated (...) costs, and the level of expertise required for data analysis. Here, the different NGS‐based methods for fusion gene detection, the basic principles underlying the techniques, and the benefits and limitations of each approach are reviewed. This article concludes with a discussion of how NGS will impact fusion gene detection in a clinical context and from where the next innovations are evolving. (shrink)

How educators and students process and respond to emotions can either enhance or impede the development of the whole child. Social and emotional learning refers to the processes of developing social and emotional competencies, which depend on individuals’ capacity to recognize, understand, and manage emotions. Consensus across disciplines about the importance of EI highlights the need to advance the science of how to teach SEL. RULER, an evidence-based approach to teaching EI, provides an educational framework that encompasses a set of (...) practices for comprehensive SEL integration across a school or district. In this article, we describe RULER, explain how it teaches EI, and summarize evidence of its effectiveness. (shrink)

Introduction This article is a response to Zagouras, Ellick, and Aulisio who presented a case study justifying the questioning of the capacity and autonomy of a young woman with a physical disability who was pregnant and facing coercive pressure to terminate. Case description Julia is described as a 26-year-old woman with a neurological disability that requires her to receive assistance with activities of daily living. She was described as living with her parents who provided her with personal care assistance. Julia (...) became pregnant and her parents wished her to terminate because they did not want to care for her child in addition to her. In fact, Julia's parents threatened her with institutionalization if she did not elect to terminate the pregnancy. Her health care team questioned her decision-making capacity based on her alleged “mental age” and experiences of being sheltered and excluded. The health care team used directive tactics to convince Julia to terminate the pregnancy, which describe as both an ethical and feminist intervention. Discussion The current authors take issue with the case analysis provided by and argue that they neglected to account for numerous instances of systemic ableism that adversely affected Julia, demonstrated prejudicial and judgmental attitudes toward pregnancy and disability, inappropriately questioned her decision-making capacity by infantilizing her, misconstrued the feminist concept of relational autonomy, and colluded with coercive interference from family members. This is a classic example of discriminatory and culturally incompetent reproductive health care for a disabled woman. (shrink)

Biological and epidemiological phenomena are often measured with error or imperfectly captured in data. When the true state of this imperfect measure is a confounder of an outcome exposure relationship of interest, it was previously widely believed that adjustment for the mismeasured observed variables provides a less biased estimate of the true average causal effect than not adjusting. However, this is not always the case and depends on both the nature of the measurement and confounding. We describe two sets of (...) conditions under which adjusting for a non-deferentially mismeasured proxy comes closer to the unidentifiable true average causal effect than the unadjusted or crude estimate. The first set of conditions apply when the exposure is discrete or continuous and the confounder is ordinal, and the expectation of the outcome is monotonic in the confounder for both treatment levels contrasted. The second set of conditions apply when the exposure and the confounder are categorical. In all settings, the mismeasurement must be non-differential, as differential mismeasurement, particularly an unknown pattern, can cause unpredictable results. (shrink)

This is an excerpt from the content“Accountability” used to be a term that applied primarily to K-12 education, especially following the passage of No Child Left Behind. However, the recent economic downturn and subsequent recovery prompted debates on whether the cost of pursuing a college degree is “worth it” for students. Students’ post-graduation debt and job market prospects have been publicly scrutinized as well as the operations of large research universities. Supporters of higher education posit that these critiques of the (...) system impose a business model where it should not be as they emphasize outputs and efficiency over quality. At the same time, it is hard to ignore that calls for accountability in higher education are getting louder than ever before.In Accountability, Pragmatic Aims, and the American University, Ana M. Martínez-Alemán examines accountability from a historical perspective, arguing that accountability arose in the American university during the early part of the twentieth century. This rise coin. (shrink)

(2012). A Review of “Contemporary Anarchist Studies: An Introductory Anthology of Anarchy in the Academy”. Educational Studies: Vol. 48, “Anarchism … is a living force within our life …” Anarchism, Education and Alternative Possibilities, pp. 103-107.

Residual confounding is a common source of bias in observational studies. In this article, we build upon a series of sensitivity analyses methods for residual confounding developed by Brumback et al. and Chiba whose sensitivity parameters are constructed to quantify deviation from conditional exchangeability, given measured confounders. These sensitivity parameters are combined with the observed data to produce a “bias-corrected” estimate of the causal effect of interest. We provide important generalizations of these sensitivity analyses, by allowing for arbitrary exposures and (...) a wide range of different causal effect measures, through the specification of the target causal effect as a parameter in a generalized linear model with the arbitrary link function. We show how our generalized sensitivity analysis can be easily implemented with standard software, and how its sensitivity parameters can be calibrated against measured confounders. We demonstrate our sensitivity analysis with an application to publicly available data from a cohort study of behavior patterns and coronary heart disease. (shrink)

It is well-known that dichotomization can cause bias and loss of efficiency in estimation. One can easily construct examples where adjusting for a dichotomized confounder causes bias in causal estimation. There are additional examples in the literature where adjusting for a dichotomized confounder can be more biased than not adjusting at all. The message is clear, do not dichotomize. What is unclear is if there are scenarios where adjusting for the dichotomized confounder always leads to lower bias than not adjusting. (...) We propose several sets of conditions that characterize scenarios where one should always adjust for the dichotomized confounder to reduce bias. We then highlight scenarios where the decision to adjust should be made more cautiously. To our knowledge, this is the first formal presentation of conditions that give information about when one should and potentially should not adjust for a dichotomized confounder. (shrink)

Objective: Compassion has been associated with eudaimonia and prosocial behavior, and has been regarded as a virtue, both historically and cross-culturally. However, the psychological study of compassion has been limited to laboratory settings and/or standard survey assessments. Here, we use an experience sampling method (ESM) to compare naturalistic assessments of compassion with standard assessments, and to examine compassion, its variability, and associations with eudaimonia and prosocial behavior. -/- Methods: Participants took a survey which included standard assessments of compassion and eudaimonia. (...) Then, over four days, they were repeatedly asked about their level of compassion, eudaimonia, and situational factors within the moments of daily life. Finally, prosocial behavior was tested using the Dual Gamble Task and an opportunity to donate task winnings. -/- Results: Analyses revealed within-person associations between ESM compassion and eudaimonia. ESM compassion also predicted eudaimonia at the next ESM time point. While not impervious to situational factors, considerable consistency was observed in ESM compassion in comparison with eudaimonia. Further, ESM compassion along with eudaimonia predicted donating behavior. Standard assessments did not. -/- Conclusion: Consistent with virtue theory, some individual’s reports displayed a probabilistic tendency toward compassion, and ESM compassion predicted ESM eudaimonia and prosocial behavior toward those in need. (shrink)

Among philosophers, the question about strategic fouls has been whether they are ethically justified in light of our best conception of sport. This paper proposes a different defense. I argue that many strategic fouls should be excused even if we regard them as unjustified. I first lay out a partial defense of the assumptions that playing to win cannot be subordinate to playing skillfully and that winning has value that cannot be accounted for in terms of the skill that produces (...) it. I then argue that the logic of competitive play structures practical reason such that it is unreasonable to require even an ethical competitor always to subordinate the aim of winning to ethical standards within the game. Some ethical failures should be excused. The argument implies limits on the excusing conditions. I discuss these limits in some detail, showing that they fit patterns in the common acceptance of strategic fouls. I then address possible objections. In conclusion I argue that the logic of excuse rather than justification explains a common reaction to strategic fouls, resolving what might otherwise appear to be a contradiction in that reaction. (shrink)

In this paper I defend an Irreconcilability Thesis, claiming that two commonly held views about athletic contests are in fact incompatible. The first view is that athletic contests are essentially...

Fiester and Yuan discuss important ethical concerns regarding the use of behavior contracts in addressing conflict with patients and families labeled as “difficult” (Fiester and Yuan 2023). We agre...

In this essay I contrast Kant and Hegel on the so-called right of necessity, or distress. The contrast is significant because it summarizes succinctly the difference between their respective philosophies of right. Furthermore, I take the difference to indicate what in Hegel’s philosophy of right makes it preferable to Kant’s. In sum, the issue between the two is whether or not the concept of justice is determined in part by what I term in the paper the vicissitudes of making a (...) worthwhile living. (shrink)

This article briefly reviews concerns related to the “cultural colonialism” of applying Western biomedical models of research ethics to non-Western groups. The feasibility of alternate ethical models is discussed and found wanting. In practical terms, many academic researchers in the United States are funded by federal agencies and are required to adhere to Title 45, Part 46 of the Code of Federal Regulations , legislation that is clearly grounded in the Western biomedical research tradition. Consequently, the question is not whether (...) this system of ethics should be applied but rather how it can be applied most sensitively, appropriately, and wisely. The remainder of this article discusses of how the authors have attempted to do so in each stage of their own research with Hispanic immigrants to the United States. (shrink)

Discrete choice experiments—selecting the best and/or worst from a set of options—are increasingly used to provide more efficient and valid measurement of attitudes or preferences than conventional methods such as Likert scales. Discrete choice data have traditionally been analyzed with random utility models that have good measurement properties but provide limited insight into cognitive processes. We extend a well-established cognitive model, which has successfully explained both choices and response times for simple decision tasks, to complex, multi-attribute discrete choice data. The (...) fits, and parameters, of the extended model for two sets of choice data (involving patient preferences for dermatology appointments, and consumer attitudes toward mobile phones) agree with those of standard choice models. The extended model also accounts for choice and response time data in a perceptual judgment task designed in a manner analogous to best–worst discrete choice experiments. We conclude that several research fields might benefit from discrete choice experiments, and that the particular accumulator-based models of decision making used in response time research can also provide process-level instantiations for random utility models. (shrink)

Mission-oriented climate change research is often unverifiable. Therefore, many stakeholders look to peer-reviewed climate change research for trustworthy information about deeply uncertain and impactful phenomena. This is because peer-review signals that research has been vetted for scientific standards like reproducibility and replicability. Here we evaluate the transparency of research methodologies in mission-oriented computational climate research. We find that only five percent of our sample meets the minimal standard of fully open data and code required for reproducibility and replicability. The widespread (...) lack of minimal openness standards in peer-reviewed climate change research jeopardizes scientific credibility and risks poor societal outcomes as we manage growing climate risks. The scientific community can and must do better. We, the authors, outline necessary openness standards that we commit to as researchers, reviewers, and readers. We invite you to join us. (shrink)

Researchers now commonly collect biospecimens for genomic analysis together with information from mobile devices and electronic health records. This rich combination of data creates new opportunities for understanding and addressing important health issues, but also intensifies challenges to privacy and confidentiality. Here, we elucidate the “web” of legal protections for precision medicine research by integrating findings from qualitative interviews with structured legal research and applying them to realistic research scenarios involving various privacy threats.