Effects of clay content on saturated hydraulic conductivities (k) of two coarse textured soils, Vista (mixed thermic Typic Xerochrepts) and Hanford (mixed nonacid Typic Xerorthents), and a medium textured soil, Wyo (thermic Mollic Haploxeralfs) series, were investigated. The clay and combined sand + silt fraction extracted from each of the soils were mixed with the respective soils to yield mixtures ranging from 0% clay to clay levels exceeding those in the natural soils. Rates of water movement through prepared columns of the mixtures were compared to rates through unfractionated soils.

Hydraulic conductivities for unfractionated soil and prepared mixtures were high for the Vista (maximum k = 100) compared with the Hanford (maximum k = 30) and Wyo (maximum k = 20) samples. These conductivities suggest that the relatively even distribution of particles among fractions of sand, silt, and clay gave rise to a greater proportion of larger conducting pores in the Vista sample, whereas the preponderance of particles in the fine sand and very fine sand and coarse silt fractions of the Hanford soil and in the medium silt or fine silt and clay fractions of the Wyo soil limited the proportions of larger conducting pores. Marked differences in k were measured for mixed-fraction systems for all soils. The largest k values for the Hanford soil were from systems containing proportions of the different size fractions similar to that of the natural soil. The highest k values for the Vista soil were from systems containing a clay content slightly less than or greater than that of the natural soil. Additions of clay to Wyo soil increased k values.

A material resembling what has been described in the literature as hisingerite has been identified in the joints of Cenozoic grey basalt near Geelong, Victoria. The material gives an X-ray powder diffraction pattern with weak broad peaks at 4.49, 2.58, and 1.53 Å and a chemical analysis of SiO2 = 34.2, TiO2 = 0.28, A12O3 = 4.16, Fe2O3 = 17.10, FeO = 3.52, MnO = 0.04, MgO = 5.19, CaO = 0.68, Na2O = 0.26, P2O5 = 0.05, H2O+ = 5.3, H2O− = 25.4, total = 96.18% (3.82% siderite impurity). Assuming a smectite model with 44 negative charges per unit cell, the chemical composition gives a unit-cell formula with −1.14 charges, corresponding to a cation-exchange capacity (CEC) of 135 meq/100 g. The same unit-cell charge is obtained when the structural formula is calculated on the basis of (Si + Al) = 8. The measured CEC of 60 meq/100 g indicates that the smectite structure may not apply to this hisingerite-material, and that in the alternative structure, all of the Al atoms may not be in the tetrahedral positions. Although the specific surface area of this material is between 662 and 758 m2/g (comparable to that of smectite), the infrared spectra do not show the characteristic OH vibrations, and the thermal analysis curves lack the dehydroxylation peak at 550–600°C expected for a smectite. Transmission electron microscopy shows indications of a layer structure and apparently hollow spherical bodies with ‘onion’ structure of 140 to 200 Å internal diameter, which might represent the sites of the large amounts of water contained by the material. The mode of occurrence and the nature of the hisingerite-material suggest precipitation from solution at relatively low temperatures.

The present study examined the longitudinal associations between three dimensions of temperament – activity, affect-extraversion, and task orientation – and childhood aggression. Using 131 monozygotic and 173 dizygotic (86 same-sex) twin pairs from the Louisville Twin Study, we elucidated the ages, from 6 to 36 months, at which each temperament dimension began to correlate with aggression at age 7. We employed latent growth modeling to show that developmental increases (i.e., slopes) in activity were positively associated with aggression, whereas increases in affect-extraversion and task orientation were negatively associated with aggression. Genetically informed models revealed that correlations between temperament and aggression were primarily explained by common genetic variance, with nonshared environmental variance accounting for a small proportion of each correlation by 36 months. Genetic variance explained the correlations of the slopes of activity and task orientation with aggression. Nonshared environmental variance accounted for almost half of the correlation between the slopes of affect-extraversion and aggression. Exploratory analyses revealed quantitative sex differences in each temperament-aggression association. By establishing which dimensions of temperament correlate with aggression, as well as when and how they do so, our work informs the development of future child and family interventions for children at highest risk of aggression.

It is increasingly realized today that Western modernity has not only promoted progressive ideals such as scientific thought, human rights and democratic political systems. Its history is also marked by a much darker side, one of brutal conquest, biological and cultural destruction, enslavement and exploitation of non-European peoples in the context of European colonialism. This dark side of Western modernity was legitimized by pro-colonial ideologies of property, war, civilization, progress and race. Such ideologies emerged in areas like jurisprudence and philosophy since the 16th century, often building on views from classical antiquity (Pagden 1995). They shaped academic paradigms such as ‘scientific racism’, colonial anthropology and Orientalism in the 19th and early 20th centuries, and in many ways continue to influence contemporary societies and their academic practices.

We find that 43% of firms that make payouts also raise capital during the same year, resulting in 31% of aggregate payouts being externally financed, primarily with debt. Most financed payouts cannot be explained by payout smoothing in response to volatile earnings or investment (rather, they are the result of firms persistently setting payouts above free cash flow). In fact, 25% of aggregate payouts could not have been paid without the firms simultaneously raising capital. Profitable firms with moderate growth use debt-financed payouts to jointly manage their leverage and cash, thus highlighting the close relationship between payout and capital structure decisions.

Creating new works combining live musicians with new technologies provides both opportunities and challenges. The Cyborg Soloists research project has commissioned and managed the creation of 46 new works of this type, assembling teams of composers, performers, researchers and technology partners from industry. The majority of these collaborations have been smooth-running and fruitful, but a few have demonstrated complications. This article critically evaluates collaborative methods and methodologies used in the project so far, presenting five case studies involving different types of collaborative work, and exploring the range of professional relationships, the need for different types of expertise within the team and the way technology can act as both a creative catalyst and a source of creative resistance. The conclusions are intended as a toolkit – pragmatic guidelines to inform future practice – and are aimed at artists, technological collaborators, and commissioners and organisations who facilitate these types of creative collaborations.

Let ${\mathbb {Z}}_{K}$ denote the ring of algebraic integers of an algebraic number field $K = {\mathbb Q}(\theta )$, where $\theta $ is a root of a monic irreducible polynomial $f(x) = x^n + a(bx+c)^m \in {\mathbb {Z}}[x]$, $1\leq m<n$. We say $f(x)$ is monogenic if $\{1, \theta , \ldots , \theta ^{n-1}\}$ is a basis for ${\mathbb {Z}}_K$. We give necessary and sufficient conditions involving only $a, b, c, m, n$ for $f(x)$ to be monogenic. Moreover, we characterise all the primes dividing the index of the subgroup ${\mathbb {Z}}[\theta ]$ in ${\mathbb {Z}}_K$. As an application, we also provide a class of monogenic polynomials having non square-free discriminant and Galois group $S_n$, the symmetric group on n letters.

In 2023, the Organisation for Economic Co-operation and Development (OECD) launched an updated version of the OECD Guidelines for Multinational Enterprises on Responsible Business Conduct. The changes represent substantial and potentially far-reaching implications for business, particularly in the areas of climate change and biodiversity. This article examines the 14 climate-related complaints filed under the Guidelines prior to the adoption of the 2023 Update, showing how many of these cases illustrate the potential interlinkages between the human rights and climate change dimensions of the Guidelines. The article then discusses how the updated provisions may influence future complaints concerning climate change. Based on this analysis, the article concludes that the Guidelines could have been strengthened by the explicit integration of climate change into the scope of corporate human rights responsibilities under the Guidelines.

Drawing on recent jurisprudential literature that emphasizes the role and function performed by obligation, this article examines how the ethical doctrine of informed consent has been implemented in the context of health-care reforms in China. It argues that, while the Chinese incorporation of informed consent has sought to empower patients, the major medical laws and social policies fail to instantiate the obligations. Along with this failure, the Chinese medical laws have also failed to secure the bond of trust between them. This article also points out that a rounded analysis of the implementation of informed consent in China must take into account the obligation and function of the major components of the health-care delivery system other than physicians and hospitals, such as health-care insurance schemes.

This article used text mining processes to map continuity and change in policy principles of the National Disability Insurance Scheme (NDIS) in Australia and reflect on the underlying agendas of reform. Specifically, this research aimed to: (1) examine the substantive content of the NDIS legislative, operational and reform documentation, (2) assess changes in objects, principles and issues over time, and (3) discuss the implications of these shifting logics and agendas. To achieve this, text mining approaches were applied to ten key NDIS documents from 2011 to 2019.

The findings included a low prevalence of ‘rights’-based terminology, sustained attention to Scheme ‘costs’ but limited latterly attention to ‘sustainability’, and increasing prominence of interpersonal (e.g., ‘family’, ‘community’) and decision-making terminology (e.g., ‘decision’, ‘review’). How these shifts have influenced subsequent proposed reforms is explored and ongoing dilemmas about designing policy that ensures rights and entitlements, while balancing cost, sustainability and consistency are identified.

It is a feature of modern nationhood that a declaration of independence is reified as a key inflection point, a specific moment in time during which a region and its people cease to be beholden to something else and begin to chart their own collective course. Independence thus represents both an end and a beginning. It is both a process and a goal. Independence is usually understood as a political act, a metaphorical coming of age, a goal achieved, and an event that brings hope. This collection of six recent books on independence in Age of Revolutions across the Atlantic world fit together to show how wartime worlds and worldviews may not fit as neatly into the textbook national story. They share an intellectual project of moving beyond the usual actors and narrative trajectories to introduce us to new perspectives on the events by looking at different regions and demographics: Austrian diplomats, British Foreign Office bureaucrats, Irish radicals, New England whalers, African traders, Chilean popular classes, Mexico City's night watchmen, and many others. These six authors tug at the standard chronology of Atlantic independence as well, pulling it back to the 1770s and extending its living impact into the 1850s. Taken together, they remind us that independence is a tricky concept, one that can look quite different depending on one's place in a broader matrix. Wars eventually end, but combative words and unreconciled worldviews collide and continue the struggle.

All aspects of law possess scaler elements, but critiques from the ‘politics of scale’, a concept well established in political geography, remain rare in legal analysis. Brexit, especially as regards Northern Ireland, provides a key opportunity to consider scaler analysis both in a descriptive and theoretical sense. Scale deepens our understanding of how law co-constitutes multiple scales but also highlights where a flat understanding of law tied to vertical jurisdictional frames foils attempts to garner a full understanding of its operation. Northern Ireland, a legal and political space that from one perspective lends itself to an apparently clear-cut vertical description of legal scales, actually presents a rich space where networked, rhetorical and nodular scales and structures continuously (re)contest scaled solutions. The Brexit outcome of what used to be known as the Protocol on Ireland/Northern Ireland and is now known as the Windsor Framework – and specifically how the Framework is intended to operate in practice – provides an opportunity to not only understand Northern Ireland within a scale and law frame, but also to highlight the shortcomings of law's traditional scaler approach and what lessons may be learned when analysing or engaging with the intersection of law and politics in similar future situations.