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The size of subcellular structures must be tightly controlled to maintain normal cell function. Despite its importance, few studies have determined how the size of organelles or other structures is maintained during development, when cells are growing, dividing and rearranging. The developing Drosophila egg chamber is a powerful model in which to study the relative growth rates of subcellular structures. The egg chamber contains a cluster of 16 germline cells, which are connected through intercellular bridges called ring canals. As the egg chamber grows, the germline cells and the ring canals that connect them increase in size. Here, we demonstrate that ring canal size scaling is related to lineage; the largest, 'first-born' ring canals increase in size at a relatively slower rate than ring canals derived from subsequent mitotic divisions. This lineage-based scaling relationship is maintained even if directed transport is reduced, ring canal size is altered, or in egg chambers with twice as many germline cells. Analysis of lines that produce larger or smaller mature eggs reveals that different strategies could be used to alter final egg size. [ABSTRACT FROM AUTHOR]

A growing body of research reveals that entertainment narratives are persuasive across a variety of topics. Models of narrative persuasion highlight key mechanisms, but one limitation of this theorizing is that it has not directly considered the full range of entertainment narratives that exist. Viewers select media content to fulfill various needs—hedonic needs for pleasure and enjoyment or more eudaimonic needs gratified by appreciation and mixed affective responses. Narrative persuasion theorizing would benefit from explicitly considering eudaimonic entertainment narratives and how they may uniquely lead to persuasion. Doing so will expand on existing narrative persuasion mechanisms and identify contingencies regarding when and for whom distinct types of entertainment narratives may persuade. This article builds on the entertainment overcoming resistance model by advancing a set of testable propositions regarding narrative persuasion by meaningful entertainment and offering an agenda for future research in this area. [ABSTRACT FROM AUTHOR]

This article explores the issue of child pornography and exploitation, arguing that current federal laws are not effectively combating the problem. It discusses the role of the First Amendment in relation to child pornography, noting that while child pornography itself is not protected, artistic expressions such as drawings are. The article suggests that Congress should expand and enforce existing laws more aggressively to eliminate access to all child pornographic materials and close the distribution network. It also discusses Supreme Court cases that have shaped child pornography laws and highlights the ongoing challenges in defining and regulating child pornography in the digital age. The article concludes by advocating for the expansion of child pornography laws to include artistic expressions in order to protect children from harm. [Extracted from the article]

Large-scale analysis of single-cell gene expression has revealed transcriptomically defined cell subclasses present throughout the primate neocortex with gene expression profiles that differ depending upon neocortical region. Here, we test whether the interareal differences in gene expression translate to regional specializations in the physiology and morphology of infragranular glutamatergic neurons by performing Patch-seq experiments in brain slices from the temporal cortex (TCx) and motor cortex (MCx) of the macaque. We confirm that transcriptomically defined extratelencephalically projecting neurons of layer 5 (L5 ET neurons) include retrogradely labeled corticospinal neurons in the MCx and find multiple physiological properties and ion channel genes that distinguish L5 ET from non-ET neurons in both areas. Additionally, while infragranular ET and non-ET neurons retain distinct neuronal properties across multiple regions, there are regional morpho-electric and gene expression specializations in the L5 ET subclass, providing mechanistic insights into the specialized functional architecture of the primate neocortex. [Display omitted] • Transcriptomically defined L5 ET neurons project subcerebrally in macaques • Ion channel gene expression differentiates neuronal subclasses and neocortical areas • L5 ET versus non-ET neuron physiological differences are conserved across regions • Many cross-areal differences in L5 ET morpho-electric properties exist in macaques Using Patch-seq recordings of macaque infragranular pyramidal neurons, including retrogradely labeled corticospinal neurons, Dembrow et al. identify cell-type and areal differences in gene expression, morphology, and physiology. These data demonstrate that regional specializations in function and cytoarchitecture are accompanied by differences in the intrinsic properties of discrete cell types. [ABSTRACT FROM AUTHOR]

10: Blick auf die Leseterrassen und den Speziallesesaal (rot) (Foto: Marcel Strainchamps - Nationalbibliothek Luxemburg) B Highlight: Transparenz des Lesesaals b Auf den ersten Blick kann man den gesamten Raum erfassen: rechts, den abgesenkten Lesebereich mit der breiten Rampe, den halbhohen Regalen und den ähnlich einer Blumenwiese angeordneten Leuchten, links die lange weiße Informationstheke, geradeaus die große Haupttreppe, die sämtliche Bereiche mit Informationstheken, Bücherregalen und Leseplätzen verbindet. Die Beleuchtung der einzelnen Regalfachböden der Metallregale, die Ausleger an den Einbauregalen aus Holz, die weißen Glasleuchten auf den Regalen, die treppenbegleitende Handlaufbeleuchtung bis hin zu den Lesetischleuchten wurden gemeinsam mit Leuchtenherstellern speziell für die Nationalbibliothek entwickelt und produziert. Tafeln an den Außenwänden der Regalreihen weisen systematisch auf die jeweiligen Inhalte hin, während große Hinweistafeln an den Treppen und strategisch platzierte freistehende oder von der Decke abgehängte Wegweiser zu den einzelnen Abteilungen, aber auch zu wichtigen Punkten wie Ausleihe, Rückgabe, Auskunft, zu sämtlichen weiteren an den Lesebereich angedockten öffentlichen Räumlichkeiten sowie zu den Sanitärbereichen, Aufzügen und Fluchttreppen führen. Beton ist als thermische Speichermasse sehr wirksam und ist daher in vielen Bereichen der Bibliothek auch einfach sichtbar belassen, sei es in den Verwaltungsräumen, den Werkstätten, den Treppenhäusern und den Fluren. [Extracted from the article]

The built environment of an older person's home can reduce or promote the possibility of a fall or other injury. A user-friendly tool can help the residents to evaluate their home environment within the context of their specific functional and mobility challenges, so that needed modifications can be identified and completed before an event causing injury occurs. The increasing use of telehealth and other digital technologies has paved the way for technology-based person-initiated home assessments that may allow people to evaluate and improve their homes proactively. The purpose of this literature review was to systematically analyze existing published paper- and technology-based home assessment tools to understand the structure and key characteristics of existing tools and to understand the limitations in existing home assessment tools. This review identified and compared 24 studies based on structure, content, and implementation. While a vast variety of tools and methods currently exist for conducting in-home or remote home assessment for older adults, there is a lack of a comprehensive and user-friendly technology-based tool that older adults can use to conduct an environmental assessment of their home in relation to their functional abilities, such that modifications may be identified that can prevent falls and other injuries. [ABSTRACT FROM AUTHOR]

What are the boundaries that limit expansion of semantic knowledge across development? One striking contender is the necessity of a prompt to integrate and self-generate new information. The present research was an investigation of 7–9-year-olds' and 18–22-year-olds' prompted versus unprompted memory integration and subsequent self-derivation of new knowledge. Children and adults (Experiments 1 and 2, respectively) were exposed to sets of novel, true facts that could be integrated to self-derive new knowledge. On some trials they were prompted to integrate and self-derive and on others they were not. Both children and young adults capitalized more effectively on prompted opportunities to self-derive compared with unprompted opportunities, and the mechanism of this difference in performance likely underlies memory integration. Thus, the current work illustrates the importance of the conditions under which memory integration occurs, regardless of age. Results also offer evidence consistent with developmental change in unprompted integration and self-derivation performance, such that children and adults may engage the process of self-derivation differently. This work is particularly important in highlighting the necessity of appropriate scaffolding to foster successful learning opportunities and understanding the conditions under which semantic knowledge is accumulated. [ABSTRACT FROM AUTHOR]

This dialogue centers on the artwork and legacy of Chilean artist Lotty Rosenfeld, including such solo projects as One Mile of Crosses on the Pavement and her collaborations with CADA (Colectivo Acciones de Arte). It argues for a queer feminist reading of Rosenfeld as it considers her anti-dictatorship spatial practices, her intimacies with the writer Diamela Eltit, and her political and aesthetic commitments. [ABSTRACT FROM AUTHOR]

Common alder (Alnus glutinosa) is an important tree species, especially in riparian and wet habitats, it is very common across Ireland and Northern Ireland, and provides a wide range of ecosystem services there. Alder suffers from Phytophthora induced decline in many parts of Europe, and this research set out to identify the presence and scale of the risk to alder health from Phytophthora and other closely related oomycetes in Northern Ireland. This was done through surveys along the river Lagan in Belfast, Northern Ireland and revealed that of the tree vegetation along an 8.5 km stretch of the river, 166 alder trees were counted. Of these, 28 were severely defoliated/diseased and nine were dead. Sampling and a combination of morphological and molecular testing of symptomatic plant material and river baits identified the presence of three Phytophthora species, including Phytophthora lacustris -the first time it has been recorded as disease-causing in Ireland. Inoculation studies using potted alder saplings demonstrated that P. lacustris was able to cause disease (under bark lesions), and Koch's postulates for this pathogen-host combination were completed, which suggests a future risk to alder health from P. lacustris in Northern Ireland. [ABSTRACT FROM AUTHOR]

'The amateur' is an unstable figure across geographic contexts that have shaped an extraordinary range of activity, from non-remunerated, self-organised, non-official, anti-ruling class, insurgent artistic efforts, to programmatic State efforts to marshal 'folk' production into national narratives of authentic belonging. With this special issue, the authors argue that an examination of this topic will benefit from the adoption of a global perspective from the outset, as well as a keen attention to the diverse circumstances of amateur making – in architecture, painting, music, poetry, television, video, film, photography and archiving. Amateurism can be fostered not only by the love of an art, but also by the will to survive economic and social precarity. Any attempt to periodise the amateur yields multiple chronologies built around distinct moments of significance. Yet the authors suggest that we are in a new age of amateurism, indicated by the wave of emerging scholarship on this topic, as well as an omnipresent general antipathy to the expertise of professional technocrats. [ABSTRACT FROM AUTHOR]

I do think that good CEOs have to have an ego both to survive and to succeed, and the best CEOs will then build strong teams around them, including strong and very well-qualified CFOs. I think the UK Corporate Governance Code has done a good job of putting checks and balances around the CEO to make sure that the board is more independent, and every company I have been involved in the board has taken a direct interest in me as a CFO and the CFOs in those companies to make sure that you've got that sort of independence. I am speaking both as Chair of the 100 Group, which is a collective of the FTSE 100 CFOs, and as a CFO myself. [Extracted from the article]

Background: Maintaining a healthy weight is a military requirement for the Reserve Officer Training Corps (ROTC) cadets. Male and female soldiers often have different approaches to maintaining a healthy weight and mobile health (m-health) tools can be harnessed and tailored to the needs of individual cadets. Objectives: This study examined gender differences in technology use, weight loss strategies, information needed to maintain a healthy weight, and willingness to participate in m-health research and programs. Materials and Methods: A self-administered survey was completed by 404 cadets from ROTC programs in Florida in 2017. Results: Most owned smartphones and used them as their primary internet access. Women had significantly lower body mass index than men (p = 0.037). Most used healthy weight loss strategies, including increasing physical activity, reducing sweets, and reducing fried foods. Women were more likely than men to reduce fried foods (p < 0.0003) and sweets (p = 0.020). Most reported a willingness to participate in m-health weight management research and programs, with women more willing to do so (p = 0.038). Most were willing to participate in m-health programs that used text messages, food/activity/sleep apps, smart watches/fitness trackers, and stress management/anxiety apps. Women were more willing to participate in programs that used apps for stress/anxiety management (p = 0.004) and to track food/activity/sleep (p < 0.0001). Most needed information on eating healthy on a budget and eating healthy on-the-run. Conclusions: Opportunities exist for college health and wellness professionals to use a variety of m-health tools and apps to promote general health and wellness and to help cadets achieve and maintain a healthy weight. [ABSTRACT FROM AUTHOR]

This text considers the productive yet puzzling relay between Louise Nevelson's art and her use of titles. Do her titles secure meanings, or do they ultimately generate ambiguity? I propose that Nevelson's working process is illuminated by a close investigation of her practice of titling, which demonstrates the same logic of seriality as her sculptures. [ABSTRACT FROM AUTHOR]

Exploring the emergence of the rubric "time-based art" across several disciplinary formations, including performance and visual art, this editors' introduction outlines some historical theories of duration across the arts and argues for a contextual approach that accounts for both medium and institutional location. [ABSTRACT FROM AUTHOR]

An introduction is presented in which the editor discusses various reports within the issue including the aesthetics of narcissism, modality of visual activism and the activism of affective and interpersonal exchange.

The Association of Dental Implantology thanks its long-serving DCP representative [ABSTRACT FROM AUTHOR]

A Correction to this paper has been published: https://doi.org/10.3758/s13421-021-01210-0 [ABSTRACT FROM AUTHOR]

The article focuses on works of choreographer Simone Forti along with information on her career development. Topics include work of artist Eliseo Mattiacci titled "Action with Steamroller," a performance of Forti with jazz composer Steve Lacy; and a performance of Forti titled "Sleepwalkers," which is a meditation on animal comportment in several parts.

Julia Bryan-Wilson explores the politics of listening in Sharon Hayes's video installations Parole (2010) and Ricerche: three (2013), suggesting that her attention to embodied speech — and the lack thereof — articulates a 'queer desire for history'. [ABSTRACT FROM AUTHOR]

We investigate the local stability of strongly magnetized relativistic tori orbiting Kerr black holes, for the case of a purely toroidal magnetic field topology. Our approach encompasses both solving the full dispersion relation numerically and solving a simplified analytic treatment. Both approaches indicate that such tori are subject to an unstable non-axisymmetric magnetorotational mode, regardless of such background properties as the gas-to-magnetic pressure ratio and specific angular momentum distribution. We demonstrate that our modal analysis matches well with what is seen in global, three-dimensional, general relativistic magnetohydrodynamic simulations. [ABSTRACT FROM AUTHOR]

The article examines the history of the EZTV video theater or microcinema in Los Angeles, California, and its contribution to the gay and queer subcultures of the 1970s and 1980s. Topics discussed the activities of artist, screenwriter, and EZTV founder John Dorr, EZTV's role as a venue for early amateur and user-generated content creation, and the position of EZTV as a kind of community center for the West Hollywood, California, neighborhood.

Background and aims: Acacia senegal, a leguminous dryland tree, is economically and ecologically important to sub-Saharan Africa. Water-use efficiency (WUE) and biological nitrogen fixation (BNF) are fundamental to plant productivity and survival. We quantify provenance differences in WUE, BNF, photosynthesis, biomass and gum arabic production from A. senegal assessing genetic improvement potential. Methods: Using stable isotope ratios, we determined WUE (δC) and BNF (δN) from provenances of mature A. senegal in field-trials (Senegal), sampling leaves at the beginning (wet) and end (dry) of the rainy season. Seedling provenance trials (UK) determined photosynthesis, and biomass and δC in relation to water table. Environmental data were characterised for all provenances at their sites of origin. Results: Provenances differed in both δC and δN. Gum yield declined with increasing WUE. Virtually no BNF was detected during the dry season and seedlings and mature trees may have different WUE strategies. Wind speed and soil characteristics at provenance origin were correlated with isotope composition and gum production. Conclusion: Provenance differences suggest that selection for desirable traits, e.g., increased gum production, may be possible. As ecological strategies relate to native locality, the environmental conditions at plantation site and provenance origin are important in assessing selection criteria. [ABSTRACT FROM AUTHOR]

The article presents a conversation between art critic and historian Julia Bryan-Wilson and the filmmaker and screenwriter Cheryl Dunye. The conversation focuses on Bryan-Wilson's and Dunye's mutual interest in queer archives. Particular focus is paid to Dunye's 1996 film "The Watermelon Woman" whose narrative revolves around a search for a 1930s black lesbian film star named Fae Richards. The film includes photographs taken by the artist Zoe Leonard that re-enact photographs from Richard's life, thus appearing to be actual archival documents. Dunye comments on the notion of the imaginary archive, such as her own "The Fae Richards Photo Archive." In addition, Dunye comments on her 2012 pornographic film "Mommy Is Coming."

An essay is presented on occupational realism, in which the realms of waged labor and art collapse. The author says she intended to provisionally define occupational realism as it serves both as a genre or style of performance and as an attitude towards work explaining the specific class conditions of artistic production and identity. She is said to complicate a definition of the term "virtuosity" by theorist Paolo Virno through the lens of theatre, dance and music in contrast to visual art.

ABSTRACT It is now well established that changes in the X-ray spectral state of black hole low-mass X-ray binaries are correlated with changes in the radio properties of those systems. Assuming radio power is a proxy for jet power, we can say that the jet is continuously present in the hard state and undetectable (and therefore weaker) in the soft state. Since the different accretion states are also generally assumed to be associated with different disc geometries - the hard state with a hot, thick flow, and the soft state with a cold, thin disc - we investigate the possibility that these two phenomena are linked; i.e. the difference in disc geometry is the cause of the difference in observed jet power. We do this by comparing various measures of jet power in numerical simulations of accretion discs of differing temperatures and thicknesses. We perform these simulations using the general relativistic magnetohydrodynamic code cosmos++ and a newly added cooling function, which allows us to regulate the disc scale height H/ r at different radii. We find no apparent correlation between the disc scale height and jet power whenever we normalize the latter by the mass accretion history of each simulation. We attribute this result to the role that the 'corona' plays in confining and accelerating the jet (our corona may also be considered a failed magnetohydrodynamic 'wind'). The properties of the corona do not vary significantly from one simulation to another, even though the scale heights of the discs vary by up to a factor of 4. If this holds true in nature, then it suggests that the correlation between spectral state and jet power must be attributable to some other property, possibly the topology of the magnetic field. Alternatively, it could be that the corona disappears altogether in the soft state, which would be consistent with observations, but has so far not been seen in simulations. [ABSTRACT FROM AUTHOR]

An essay is presented which features photographs taken by artist Ansel Adams which were commissioned by the University of California to capture "portraits" of the school's many campuses. The essay offers information about the photographs, taken during the mid-1960s, which feature images such as a student protest of an appearance by United States Ambassador Arthur J. Goldberg, an "astromonkey" being prepped for space exploration and laborers working on a farm.

From 1974 to 1976, artists in a range of contexts produced works that drew connections between performance and prostitution. This article examines how these projects, by artists such as Carlos Ginzburg and Suzanne Lacy, speak to the wider political discourses and feminist attitudes toward prostitution in the 1970s, as well as to the economic shifts that saw the growth of service-oriented and intimate labor. In the 1970s, female performance artists and female critics who wrote for money were both likened to hookers. This article takes this analogy seriously to consider how two seemingly divergent populations--art workers and sex workers--emerged at this time. What does the conjoining of these two identifications tell us about the valuation of labor, especially when affective exchanges are involved? What were the gendered consequences of the professionalization of art, and of sex work, at this moment? Concluding with contemporary examples from the 1990s and 2000s, the author investigates ongoing questions of privilege, power, and social worth in artistic projects regarding sex work. [ABSTRACT FROM AUTHOR]

1. This account presents information on all aspects of the biology of Campanula rotundifolia L. that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivory and disease, history, and conservation. 2. Campanula rotundifolia is a slender, rhizomatous, prostrate to erect herb with long-stalked roundish basal leaves, linear stem leaves, and a blue, bell-shaped corolla. It is widespread in the British Isles though absent from parts of Ireland. Globally, C. rotundifolia has a circumpolar distribution extending from the Arctic Circle to northern Mexico and North Africa. It forms a polyploid complex with some characters linked to ploidy level. Populations in the British Isles are predominantly tetraploid and hexaploid, with occasional pentaploids. The distribution of these cytotypes in the British Isles has a strong spatial structure. 3. Campanula rotundifolia has a wide ecological amplitude, tolerating very dry conditions but also occasionally occurring in permanently saturated habitats, and it grows on a very wide range of soil types, from coarse sands through loams to heavy clays and pure peats. However, C. rotundifolia is rarely found on fertile lowland clays where competition from more vigorous species may limit growth. Campanula rotundifolia is found in a range of grassland, heath, mire, scrub and sand dune communities spanning a wide range of soil pH. 4. Campanula rotundifolia is perennial and spreads by seed and by rhizome. Plants generally overwinter as frost-resistant green rosettes. As the spring season progresses, plants make slow vegetative growth. Erect flowering stems develop from June onwards. Campanula rotundifolia is largely self-incompatible, and is insect pollinated, regularly producing large quantities of viable seed. 5. Although C. rotundifolia is a widespread and locally very common species there is some evidence from Britain and across Europe that it is in decline. These losses are likely to be due to a number of factors including agricultural intensification, reversion of grassland to scrub and woodland, disturbance, and atmospheric pollution. [ABSTRACT FROM AUTHOR]

An essay is presented which focuses on the dance sequence "Trio A" by Yvonne Rainer. It was first performed in 1966 as part of a larger performance "The Mind Is a Muscle" featuring dancers Rainer, Steve Paxton, and David Gordon. In 1978, producer Sally Banes made a film on this dance. It has generated a lot of interest worldwide. It has been recognized in other forms in addition to live performances like a drawing, a film and a set of instructions. It appeared in the exhibition "On Line: Drawing Through the Twentieth Century" at New York's Museum of Modern Art.

With 2 figures and 6 tables Abstract Male sterility is described for the first time in lupin crop species Lupinus angustifolius L. and Lupinus luteus L. and is also characterized in the Andean lupin, Lupinus mutabilis Sweet. In L. angustifolius and L. luteus, male-sterile plants were identified in artificially induced mutation populations, while in L. mutabilis, both naturally occurring and induced male-sterile plants were selected. For L. angustifolius artificially induced sterility, the segregation ratios in F1, F2 and backcrosses showed a single-gene recessive inheritance and was concluded to be of a nuclear rather than cytoplasmic form. In L. luteus, male-sterile plants were recovered from an M3 mutation population derived from cv. 'Wodjil', and several were consistent with that of single recessive gene, most likely nuclear. A naturally occurring sterility in L. mutabilis was concluded to be cytoplasmic with identification of restorer and maintainer genotypes. The trait in L. mutabilis has greatly increased the rate of F1 seed set with zero selfing. Male sterility could be useful for increasing crossing efficiency in breeding programmes, for exploiting heterosis and for interspecific hybridization. [ABSTRACT FROM AUTHOR]

The article discusses the notion of incommensurability, the belief that all lengths could be measured using numbers. It shows that two lengths are commensurable on the condition that their ratio is a rational number. According to the author, the application of the Eucledian Algorithm to any two real numbers, with at least one being non-zero, and not just integers, will produce a monotonically decreasing sequence of non-negative remainders.

The article presents a lesson plan which teaches students the mathematics of the piano keys, including the chromatic Pythagorean scale.

This article discusses the concept of and the definition of the term "contemporary art." The discussion focuses on the positive connotations related to the value judgment of calling something a piece of art and to the contemporary relevance of the specific piece called art. The trans-individual principle of "art as such," the economic aspects of labeling art, and the social ideal of the artist as entrepreneur are mentioned. The art quality model of several museums is discussed including the Museum of Contemporary Art in Los Angeles, California.

An interview with artist Sharon Hayes is presented. Hayes describes the kind of desire that is reflected in photographs of queer events and the performance "Revolutionary Love: I Am Your Worst Fear, I Am Your Best Fantasy" to gay liberation. She tells how she embarked on the organizing of local queer groups who participated in the performance. She also discusses the performance "In the Near Furture" and protest signs.

The article focuses on the costuming and visual self-presentation of the two radical genderfuck performance groups Cockettes and the Angels of Light, which worked out of the Bay Area, California during the 1960s and 1970s. The groups performed an activist embrace of 'decadent' surface by juxtaposing traditional signs of femininity like crochet and embroidery.