A surge of Mittie Glacier, a 50 km-long tidewater outlet glacier of Manson Icefield, occurred between approximately 1992 and 2007. Velocities increased slowly at first, but then increased rapidly to reach a peak of 4800 m a−1 in early 1996, the highest ever reported for a glacier in the Canadian Arctic. The surge initiated at the terminus and propagated up-glacier, with a maximum terminus advance of 7.3 km between 1994 and 1999. The surge was almost entirely restricted to the lower ~30 km of the glacier, in a region which radio-echo sounding shows to be grounded below sea level. A 3 km-wide crevasse with a 150 m opening occurred at the separation between faster moving ice downstream and slower moving ice upstream. Surge initiation appears to have been triggered by flotation of the lower terminus, caused by long-term thinning of this region during quiescence.

To deeply explore the solar system, it will be necessary to become less reliant on the resupply tether to Earth. An approach explored in this study is to convert hydrocarbons in asteroids to human edible food. After comparing the experimental pyrolysis breakdown products, which were able to be converted to biomass using a consortia, it was hypothesized that equivalent chemicals found on asteroids could also be converted to biomass with the same nutritional content as the pyrolyzed products. This study is a mathematical exercise that explores the potential food yield that could be produced from these methodologies. This study uses the abundance of aliphatic hydrocarbons in the Murchison meteorite (>35 ppm) as a baseline for the calculations, representing the minimum amount of organic matter that could theoretically be attributed to biomass production. Calculations for the total carbon in solvent-insoluble organic matter (IOM) represent the maximum amount of organic matter that could theoretically be attributed to food production. These two values will provide a range of realistic yields to determine how much food could theoretically be extractable from an asteroid. The results of this study found that if only the aliphatic hydrocarbons can be converted into biomass (minimum scenario) the resulting mass of edible biomass extractable from asteroid Bennu ranges from 5.070 × 107 g to 2.390 × 108 g. If the biomass extraction process, however, is more efficient, and all IOM is converted into edible biomass (maximum scenario), then the mass of edible biomass extractable from asteroid Bennu ranges from 1.391 × 109 g to 6.556 × 109 g. This would provide between 5.762 × 108 and 1.581 × 1010 calories that is enough to support between 600 and 17 000 astronaut life years. The asteroid mass needed to support one astronaut for one year is between 160 000 metric tons and 5000 metric tons. Based on these results, this approach of using carbon in asteroids to provide a distributed food source for humans appears promising, but there are substantial areas of future work.

A numerical method is proposed for a class of one-dimensional stochastic control problems with unbounded state space. This method solves an infinite-dimensional linear program, equivalent to the original formulation based on a stochastic differential equation, using a finite element approximation. The discretization scheme itself and the necessary assumptions are discussed, and a convergence argument for the method is presented. Its performance is illustrated by examples featuring long-term average and infinite horizon discounted costs, and additional optimization constraints.

This paper calls for the lawyering profession – which is often viewed as unabridged – to be reframed into two distinct occupations: legal aid practice and private practice, to better incorporate the divisions in labour. In order to better understand contemporary legal aid work and its workers, the hidden realities must be unveiled from behind their private counterparts, which opposingly signify wealth, professionalism, autonomy and privilege. Set within a context of crumbling professional identities, a shrinking industry and financial constraints, the paper draws on ethnographic and interview data. It finds that those working in legal aid undoubtedly face a more stagnated, under-resourced and precarious working environment, which means that their professional experience is vastly different from their private counterparts. Likewise, those in the field face toxic narratives from the government, the media, the public, and their private counterparts alike, resulting in persistent discourse of vilification. Ultimately, it calls for a refocus of legal aid work as a separate vocation due to its altruistic underpinnings, unique ‘professional’ identity, and values.

Associations between adversity and youth psychopathology likely vary based on the types and timing of experiences. Major theories suggest that the impact of childhood adversity may either be cumulative in type (the more types of adversity, the worse outcomes) or in timing (the longer exposure, the worse outcomes) or, alternatively, specific concerning the type (e.g., parenting, home, neighborhood) or the timing of adversity (e.g., specific developmental periods). In a longitudinal sample from the Future of Families and Wellbeing Study (N = 4,210), we evaluated these competing hypotheses using a data-driven structured life-course modeling approach using risk factors examined at child age 1 (infancy), 3 (toddlerhood), 5 (early childhood), and 9 (middle childhood). Results showed that exposures to more types of adversity for longer durations (i.e., cumulative in both type and timing) best predicted youth psychopathology. Adversities that occurred at age 9 were better predictors of youth psychopathology as compared to those experienced earlier, except for neglect, which was predictive of internalizing symptoms when experienced at age 3. Throughout childhood (across ages 1–9), aside from the accumulation of all adversities, parental stress and low collective efficacy were the strongest predictors of internalizing symptoms, whereas psychological aggression was predictive of externalizing symptoms.

The Qing dynasty enforced a policy of separate governance for the people of the Eight Banners, ruling that bannermen were neither to be administered under the regular civilian administrative system, nor listed on the civilian register. Institutionally and legally, the labels “Banner” (qi 旗) and “civilian” (min 民) marked a fundamental divide between different social groups in the Qing. However, in actual practice, the boundary between the two was less rigid. An ambiguous area existed within the seemingly strict legal and administrative regime, providing opportunists with an abundance of loopholes to exploit. Some changed their status from “civilian commoner” to “bannermen” to acquire land, while others moved from “bannermen” status to “civilian commoner” status to pursue promotion in the civil service. Shedding light on the everyday lives of these people, this article delves into the intricate Banner–civilian classification of the Qing dynasty, with a focus on the overlapping area between the parallel systems. It aims to rectify the conventional binary perspective that strictly dichotomizes Banner and civilian status. By doing so, it highlights the multifaceted nature and diversity inherent in Qing ethnic relations and local society.

Utilizing online survey data of US consumers, this study examines the extent to which consumers' acceptance of genetically modified (GM) and gene-edited (GE) food is driven by their risk attitudes. Our results indicate that individuals with high-risk propensity are more likely to accept both GM and GE food than individuals with low- and medium-risk propensity. Our results also find differences in consumers' attitudes toward plants and animal products in the context of both GM and GE. Intriguingly, these attitudinal differences can be explained by consumers' risk propensities. Specifically, both low- and medium-risk propensity consumers differentiate between plants and animal products; the latter is less acceptable than the former, indicating a tendency to have more concerns about the application of biotechnology to animals than plants. However, individuals with high-risk propensity do not differentiate between GM and GE plants and animal products. Our results suggest that policymakers, the food industry, and researchers need to consider these attitudinal differences while studying consumer attitudes toward GM and GE food. Failing to capture these attitudinal differences in studies focusing on consumer behavior toward GM and GE food may result in either overestimating or underestimating consumer response.

Penicillin allergy delabeling may benefit antimicrobial stewardship (AS). Cost of initial penicillin treatments following risk-stratified inpatient delabeling were compared to two hypothetical treatment regimens if delabeling had not occurred: (1) AS-guided and (2) Common Treatment. Penicillin allergy delabeling improved antimicrobial spectrum index, was cost-neutral, and averted unnecessary penicillin desensitizations.

Nebraska is one of the top five corn-growing states in the United States, with the planting of corn on 3.5 to 4 million hectares annually. Harvest loss of corn results in volunteer corn interference in the crop grown in rotation. Estimating the extent of harvest loss and expected volunteer corn density is a key to planning an integrated volunteer corn management program. This study aimed to evaluate the harvest loss of corn and estimate the potential for volunteerism. Harvest loss samples were collected after corn harvest from a total of 47 fields in six counties, including 26 corn fields in 2020, and 21 fields in 2021, in south-central and southeastern Nebraska. An individual cornfield size was 16 to 64 ha. A total of 16 samples were collected from each field after corn harvest in 2020 and 2021. Harvest loss of corn was 1.5% and 0.7% of the average yield of 15,300 kg ha−1 in 2020 and 2021, respectively. Corn harvest loss was 191 and 80 kg ha−1 from dryland fields, and 206 and 114 kg ha−1 from irrigated fields in 2020 and 2021, respectively. An average kernel loss of 68 and 33 m−2 occurred in 2020 and 2021, respectively. The germination percentage of corn kernels collected from harvest loss was 51%, which implies that volunteer corn plants of 35 and 17 m−2 from 2020 and 2021, respectively, could be expected in successive years. A volunteer corn management plan is required, because if it is not controlled, this level of volunteer corn density can cause yield reduction depending on the crop grown in rotation.

The closed material procedure (CMP) – ever since its introduction to English law – has been subjected to a very significant amount of academic criticism. But over time, the CMP has become increasingly settled as a fixture in English law. Whilst the existence of the CMP per se in English law seems settled, the extent of its deployment is not. Given this development, it seems important and constructive to examine whether – and the conditions under which – a CMP can ever be normatively justified, all things considered. Two propositions will be made. First, a common argument for the CMP – the maximising argument – does not demonstrate that the CMP is normatively justified, all things considered, for it does not sufficiently mitigate the two main objections to the CMP, based respectively on the principles of natural justice and open justice. Secondly, where the clear advantage variation is deployed – ie when a CMP allows the excluded party to make use of material that: (a) clearly advantages him; and (b) would otherwise be unavailable for the court's consideration – both objections are sufficiently mitigated. In such a case, the CMP is normatively justified, all things considered. This constitutes a limited normative case for the CMP.

Globally, companies are developing and implementing their strategies to reduce greenhouse gas emissions to limit the global temperature increase to 1.5 degrees Celsius above pre-industrial levels, in line with the Paris Agreement. However, there is also growing recognition and awareness of the potential negative impacts of these activities on human rights. Recent pressure from international normative standards and ESG expectations, emerging legislative developments, and legal precedents are driving companies to consider human rights impacts across their climate action. This piece explores some of the human rights risks associated with the transition to renewable energy; the transformation to regenerative agriculture; the scaling up of the circular economy; and the implementation of nature-based solutions. It then explores the challenges of conducting effective human rights due diligence given the scale and scope of the transitions needed and provides examples of how companies are seeking to respect human rights in their climate action.