Elephant grass [Cenchrus purpureus (Schum.) Morrone] is a tropical forage grass widely used in ruminant feeding in tropical and subtropical areas, mainly in cut-and-carry systems due to is high potential for herbage accumulation. However, most common genotypes (tall genotypes) generally show an early stem elongation, which contributes to a rapid decline in the forage nutritive value. Dwarf elephant grass types usually present less stem elongation and may be considered an option for the production of high nutritive value forage in cut-and-carry systems. The aims of this study were to evaluate and explain variations in herbage characteristics and kinetics of in vitro gas production of irrigated elephant grass genotypes (two tall-types – Elephant B and IRI-381 – and two dwarf-types genotypes – Mott and Taiwan A-146 2.37) under two harvest frequencies (60 and 90 days) in the dry and rainy seasons of two years. Herbage characteristics varied among genotypes, harvest frequency and seasons. Dwarf genotypes showed better in vitro fermentation parameters with the advancement of maturity compared to the tall size genotypes. Harvesting tall genotypes at a higher frequency (60-day) contributed to improving the fermentation, while dwarf elephant grass maintained greater fermentation when less frequent harvests were adopted (90-day).

The recently released eight-part Japanese docudrama THE DAYS (Netflix 2023) ostensibly concerns the March 2011 earthquake, tsunami, nuclear reactor explosions and subsequent meltdowns at Fukushima. We highlight the problematic rendering of this particular Fukushima screen history by analysing THE DAYS' narrative veracity and reliance on ‘heroic’ disaster tropes, absent-presences, the glossing over of the radiological legacy, and the context of related nuclear accident teledramas and docudrama re-enactments.

In this article, I argue that leaders of the U.S. Department of War and U.S. Army developed the organizational form and management practices of the modern corporation, decades before the advent of the railroads. Following Mark R. Wilson’s call to “bring the military in” to organizational analysis, I show how leaders of the U.S. military developed modern management practices and organizational structures as a way of maintaining control over officers, soldiers, and workers over long distances, as they provided the organized violence necessary for domestic imperialist expansion. By the time that elite merchants and real estate interests in the Atlantic port cities of the U.S. became interested in building railroads, in the late 1820s and 1830s, the U.S. Army already evidenced the key characteristics of modern business enterprise as defined by Alfred Chandler: a multi-unit organization coordinated by a hierarchy of professional, salaried, career-oriented middle and top managers. All the characteristic coordination mechanisms of the corporation: staff and line hierarchies, divisional and departmental structure, and bureaucratic systems of information gathering, surveillance, and control, were developed by the state in the course of building a continental empire.

Obesity and its comorbidities (e.g. laminitis) are identified as major welfare issues among domestic equids in the United Kingdom (UK) and abroad. Weight-management typically focuses on restricting consumption (e.g. limiting pasture grazing), often facilitated through stabling. This leads to social isolation, prompting other welfare issues. Increased exercise may be a preferable solution for equine obesity, if viable. The aims of this study were to explore horse (Equus caballus) owner perceptions regarding the importance of exercise, and to investigate how exercise provision related to welfare outcomes. Data obtained via an online survey from 804 UK horse owners indicated that most respondents’ horses were managed in obesogenic conditions, and 40% were owner-reported as overweight/obese. Exercise-related variables (e.g. if a horse was ridden) correlated with physical health problems, including decreased reports of laminitis and Equine Metabolic Syndrome. Approximately 90% of respondents reported that barriers outside of their control substantially limited opportunities to provide human-led exercise (e.g. riding, lunging). Analysis of a hypothetical weight-management scenario found owners with horses at livery yards felt significantly less able to increase horses’ self-directed exercise (e.g. free movement in fields/pastures) than owners keeping horses on their own properties. These findings indicate that while increased exercise may improve welfare, owner knowledge is not the only barrier that must be overcome to implement this prospective solution. Both human-led and self-directed exercise appear limited by a lack of opportunities available to horses and humans. These results justify future investigations into alternative management strategies as potentially viable methods of increasing exercise to improve welfare.

This paper examines the concept of decentralised autonomous organisations (DAOs), blockchain-based entities intended to operate without central authority or management hierarchy, through the lens of organisational economics. It compares DAOs with conventional organisational forms and explores whether DAOs represent a novel organisational form. The paper investigates DAOs in the context of the electronic markets hypothesis and applies theories from Demsetz, Jensen and Meckling, and Williamson to understand their potential long-term viability. A key finding is that for DAOs to function as claimed, they must effectively suppress agency costs through smart contracts and internal contestable markets. The paper also highlights the challenges DAOs face in maintaining adaptive integrity and fostering cooperative adaptation. While DAOs show promise in reducing certain transaction and information costs, their long-term viability depends on overcoming significant governance and participation hurdles.

Hypertensive heart disease and hypertrophic cardiomyopathy both lead to left ventricular hypertrophy despite differing in aetiology. Elucidating the correct aetiology of the presenting hypertrophy can be a challenge for clinicians, especially in patients with overlapping risk factors. Furthermore, drugs typically used to combat hypertensive heart disease may be contraindicated for the treatment of hypertrophic cardiomyopathy, making the correct diagnosis imperative. In this review, we discuss characteristics of both hypertensive heart disease and hypertrophic cardiomyopathy that may enable clinicians to discriminate the two as causes of left ventricular hypertrophy. We summarise the current literature, which is primarily focused on adult populations, containing discriminative techniques available via diagnostic modalities such as electrocardiography, echocardiography, and cardiac MRI, noting strategies yet to be applied in paediatric populations. Finally, we review pharmacotherapy strategies for each disease with regard to pathophysiology.

Citizen science is becoming very useful in surveying and monitoring biodiversity. Within the European Union LIFE medCLIFFS project, a network of volunteers has been established for the detection and long-term monitoring of invasive plant species that threaten the endemic flora of Mediterranean cliffs in northeastern Spain. Through iNaturalist, volunteers record various data along a series of 1-km transects. Based on the ca. 700 observations collected by volunteers in 2023 (the first year of the project), a simple and visually attractive methodology for assessing the recorded populations has been developed. This method classifies populations into one of three population dynamics categories: (1) propagative behavior (i.e., populations with seedlings or young plants but lacking senescent or dead individuals); (2) senescent behavior (i.e., showing senescent/dead plants but lacking seedlings/juveniles); and (3) a mixed behavior (i.e., containing both). This methodology, whose outputs are easily interpretable as heat maps, allows the collection of large datasets on invasive plants by citizen scientists, with two main purposes: (1) knowing which species are most concerning based on simple, straightforward observations of their population dynamics; and (2) identifying which regions of the study area are more problematic and where management efforts should therefore be directed.

A natural population of Vriesea friburgensis var. paludosa was genetically and demographically characterized. Four selected enzymatic systems were used. In total, 10 allozymic loci were analysed. The proportion of polymorphic loci was 70% and the number of alleles per locus was 2.3· The mean observed and expected heterozygosities were 0.234 and 0.226, respectively. An excess of heterozygotes was revealed by the value of the fixation index (—0.035). These indices showed the presence of high levels of genetic diversity in the population studied. A demographic survey revealed almost six times more vegetative than sexually reproductive plants. Reproductive plants were found only in clusters. The genetic diversity exhibited by this population, associated with vegetative as well as sexual propagation, resulting in clusters or colonies, would allow the employment of a sustainable management strategy for species conservation as well as its exploitation as an ornamental.

Unconsolidated soils typically develop a physical surface crust after wetting and drying. We reproduced this process in the laboratory by wetting with fog and simulated rain on fallow agricultural soils from 26 locations, representing 15 soil types from Pinal County, Arizona. Through correlative analyses, we found that carbonate content was a strong predictor of physical crust strength with fog (p < 0.0001, R2 = 0.48) and rain (p = 0.004, R2 = 0.30). Clay content increased crust strength (p = 0.04) but was not a useful predictor. Our results extend the current understanding of the soil crusting process by highlighting the preeminence of carbonate cementation in desert agricultural soils. Consequently, we identify carbonate as a pragmatic tool for estimating crust strength, a surrogate measure of a soil’s potential to produce fugitive dust, which can help prioritize interventions to curb airborne dust in arid lands.