bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of green and urban environment exposure during classroom breaks in a video-based setting
Authors: Mason Lucia , Sella Enrico , di Bosco Marta Mazzella , Pazzaglia Francesca 
Published: February 2024

AbstractNatural environments are beneficial for cognitive functioning and affect. Appraisals of such benefits can lead to the development of pro-environmental attitudes and behaviors in the long run. This study aimed to investigate the effects of an indirect exposure to a natural and urban environment during a short break in a school day, using a ‘green’ video depicting a walk through a lush forest and comparing it to an urban video portraying a walk through a busy city. We involved 91 fourth and fifth graders in a within-participants design. Results show that students decreased their performance in an arithmetic calculation task after watching the urban video, while no significant differences were observed before and after the exposure to the green environment. Students also reported experiencing more negative affect in relation to the exposure to the urban than the natural environment. Moreover, the students perceived the natural environment as more restorative than the urban environment. Taken together, our findings suggest that exposure to urban environments, in contrast to natural environments, may have negative effects on cognitive and affective functioning during school breaks. Educational implications suggest that when it is not possible to stay in a natural environment around the school, or there is no access to nature due to distance, videos of natural environments can be used during short breaks. They have potential to cognitively and affectively benefit students’ who may often be exposed to environmental stressors.
Research progress of electrolyte additives for subzero-temperature aqueous sodium-ion batteries
Authors: Wang Ru , Zhang Shupeng , Peng Shaochen , Tong Yifan , Hu Xiaofei 
Published: February 2024

AbstractSodium-ion batteries are considered one of the perspective alternatives to lithium-ion batteries due to their affordability and plentiful supply of sodium. However, traditional sodium-ion batteries that use organic electrolytes pose a threat to public safety and the ecological environment. As a result, aqueous electrolytes with high safety and cost-effectiveness are becoming more popular. Unfortunately, typically aqueous electrolytes face limitations in ionic conductivity and have relatively high freezing points, which hinder their ability to function at extremely low temperatures. These issues can be resolved with an easy-to-use method called electrolyte additive. The research on electrolyte additives for subzero-temperature aqueous sodium-ion batteries has not been systematically reviewed at present. This review aims to provide a comprehensive summary of the electrolyte additives for subzero-temperature aqueous sodium-ion batteries. Furthermore, the potential development paths of electrolyte additives to promote the advancement of electrochemical energy storage are also explored.
Graphical Abstract
Governing Ethical Gaps in Distributed AI Development
Authors: Swaminathan Nandhini , Danks David 
Published: February 2024

AbstractGood business practice often leads companies to subdivide into separate functional entities for operational efficiency and specialization. However, these kinds of divisions can generate significant ethical and perhaps even regulatory gaps when they occur in AI companies. In particular, one natural division for an AI company is into separate entities responsible for model development, testing, and cybersecurity (to maintain and protect data). In this paper, we argue that this division can lead to some ethical responsibilities always being “someone else’s job.” For concreteness, we consider the US National Institute of Standards and Technology’s AI Risk Management Framework (NIST AI RMF) as a guide to ethical obligations in a corporate context. We show that a common division of labor in AI development and deployment can lead to specific obligations for which no entity is responsible, even though they apply to the effort as a whole. We propose “Join Accountability Agreements”, a mechanism to ensure that ethical obligations do not slip through the cracks because of the way an effort is structured. We thus aim to highlight the significance of comprehensive examinations of and adaptable strategies for our ethical obligations when developing AI systems in a distributed manner.
High technology and economic statecraft: the emergence of techno-economic statecraft in South Korea
Authors: Lee Seungjoo 
Published: February 2024

Abstract
This study identifies the core of Korea’s economic statecraft as (1) diversification of the supply chain of high-tech industries to proactively mitigate vulnerability to economic coercion, (2) the pursuit of technological sovereignty to increase self-sufficiency in advanced technologies, (3) governance reforms to strengthen supply chain resilience, and (4) industrial policies to enhance the competitiveness of advanced industries. The four strategies mentioned above all have in common that they are predicated on the strategic utilization of high technology. Based on these traits, I define Korea’s new economic security strategy as techno-economic statecraft. Korea’s techno-economic statecraft has two features. First, Korea utilizes high technology as a nexus between economy and security. Second, Korea uses high technology as a nexus to link domestic and foreign policies.
High school financial education courses in the United States.: What is the importance of setting state policies?
Authors: Luedtke Allison Oldham , Urban Carly 
Published: February 2024

AbstractAccess to financial education courses makes a difference in high school students’ future financial lives. However, little data have been available to assess the access students have to these classes and what types of financial education are offered throughout the United States. We describe a novel dataset of over 19,000 hand-coded high school personal finance courses for over 7,400 high schools across the United States. These data cover the academic years from 2019–2020 to 2022–2023. The most common type of financial education offered is a semester-long course focused entirely on financial education, rather than, for example, a course on another topic that builds in a section on financial education. Schools that are in rural areas, schools with a higher percentage of Black students and schools that are geographically isolated from peers with high financial education requirements are less likely to require financial education courses for graduation.
Kierkegaard and Schmitt on the State of Exception
Authors: Neoh Joshua 
Published: February 2024

AbstractThis essay begins with a quotation from Carl Schmitt in which he quotes Søren Kierkegaard on the significance of the exception in political theology. The essay is an extended reflection on this quotation within a quotation. Through a comparison of Kierkegaard and Schmitt, the author presents two readings of the state of exception: the first centers on the figure of the sovereign, while the second centers on the figure of the martyr. The sovereign suspends the law from above, while the martyr suspends it from below. In the political sphere, there are two ways of becoming the exception: the sovereign versus the martyr.
Infinitely many composites
Authors: Lord Nick , MacHale Des 
Published: February 2024

In number theory, we frequently ask if there are infinitely many prime numbers of a certain type. For example, if n is a natural number:
(i)Are there infinitely many (Mersenne) primes of the form 2n − 1?(ii)Are there infinitely many primes of the form n2 + 1?These problems are often very difficult and many remain unsolved to this day, despite the efforts of many great mathematicians. However, we can sometimes comfort ourselves by asking if there are infinitely many composite numbers of a certain type. These questions are often (but not always) easier to answer. For example, echoing (i) above, we can ask if there are infinitely many composites of the form 2p − 1 with p a prime number but (to the best of our knowledge) this remains an unsolved problem. Of course, it must be the case that there are either infinitely many primes or infinitely many composites of the form 2p − 1 and it seems strange that we currently cannot decide on either of them.
GRAPH CHARACTERISATION OF THE ANNIHILATOR IDEALS OF LEAVITT PATH ALGEBRAS
Authors: VAŠ LIA 
Published: February 2024

AbstractIf E is a graph and K is a field, we consider an ideal I of the Leavitt path algebra
$L_K(E)$
of E over K. We describe the admissible pair corresponding to the smallest graded ideal which contains I where the grading in question is the natural grading of
$L_K(E)$
by
${\mathbb {Z}}$
. Using this description, we show that the right and the left annihilators of I are equal (which may be somewhat surprising given that I may not be self-adjoint). In particular, we establish that both annihilators correspond to the same admissible pair and its description produces the characterisation from the title. Then, we turn to the property that the right (equivalently left) annihilator of any ideal is a direct summand and recall that a unital ring with this property is said to be quasi-Baer. We exhibit a condition on E which is equivalent to unital
$L_K(E)$
having this property.
Impact of financial assistance on stunting: Syrian refugee children under 5 in Türkiye
Authors: Ay Kesgin Meryem , Saraç Melike , Grede Nils , Çavlin Bircan Alanur , Koç İsmet 
Published: February 2024

AbstractDespite the global decrease over the last two decades, stunting, also called ‘chronic malnutrition’, remains a public health issue affecting almost 150 million children under the age of 5 years globally. Defined by height-for-age, stunting is the consequence of poor nutrition, repeated infection, and inadequate psychosocial stimulation. Programmes and policies target undernutrition globally, and humanitarian and development actors invest great efforts to prevent stunting. This study uses multivariate analysis to examine the impact of financial assistance on the reduction of stunting in a refugee context, focusing on Syrian refugee children under the age of 5 years in Türkiye. Using a unique dataset, the 2018 Turkey Demographic and Health Survey Syrian Migrant Sample (2018 TDHS-SR), the findings indicate that financial assistance significantly reduces the incidence of stunting among refugee children under the control of economic, mother and children, environmental, health-related and nutritional and breastfeeding characteristics. However, having household members generate income is found to be another stronger predictor to reduce stunting. The paper also argues that the nutritional well-being of refugee children might improve if forced migration occurs towards a stable host country/region. In addition, adaptation over time also seems to have a positive influence.
Addressing nutritional issues and eating behaviours among university students: a narrative review
Authors: Almoraie Noha M. , Alothmani Noor M. , Alomari Wajd D. , Al-amoudi Amal H. 
Published: February 2024

Abstract
University life is a critical period for establishing healthy eating habits and attitudes. However, university students are at risk of developing poor eating habits due to various factors, including economic conditions, academic stress and lack of information about nutritional concepts. Poor diet quality leads to malnutrition or overnutrition, increasing the risk of preventable diseases. Food environments on university campuses also play a significant role in shaping the dietary habits of students, with the availability of and accessibility to healthy food options being important factors influencing food choices and overall diet quality. Disordered eating habits and body dissatisfaction are prevalent among university students and can lead to eating disorders. Income and living arrangements also influence dietary habits, with low household income and living alone being associated with unhealthy eating habits. This study is a narrative review that aimed to address nutritional issues and eating behaviours, specifically among university students. We investigated the eating behaviours of university students, including their dietary patterns, food choices and food environments. The objective of this review was to provide insights into the nutritional issues and eating behaviours of university students, with the aim of identifying target areas for intervention to improve the overall health and wellbeing among college students. University food environments need to be restructured to promote healthy eating, including the availability, accessibility, affordability and labelling of healthy foods, and policies to limit the availability of unhealthy foods and drinks on campus.
Disparities in neighbourhood characteristics and 10-year dementia risk by nativity status
Authors: Wong R. , Soong D. 
Published: February 2024

Abstract

Aims
Prior research indicates that neighbourhood disadvantage increases dementia risk. There is, however, inconclusive evidence on the relationship between nativity and cognitive impairment. To our knowledge, our study is the first to analyse how nativity and neighbourhood interact to influence dementia risk.

Methods
Ten years of prospective cohort data (2011–2020) were retrieved from the National Health and Aging Trends Study, a nationally representative sample of 5,362 U.S. older adults aged 65+. Cox regression analysed time to dementia diagnosis using nativity status (foreign- or native-born) and composite scores for neighbourhood physical disorder (litter, graffiti and vacancies) and social cohesion (know, help and trust each other), after applying sampling weights and imputing missing data.

Results
In a weighted sample representing 26.9 million older adults, about 9.5% (n = 2.5 million) identified as foreign-born and 24.4% (n = 6.5 million) had an incident dementia diagnosis. Average baseline neighbourhood physical disorder was 0.19 (range 0–9), and baseline social cohesion was 4.28 (range 0–6). Baseline neighbourhood physical disorder was significantly higher among foreign-born (mean = 0.28) compared to native-born (mean = 0.18) older adults (t = −2.4, p = .02). Baseline neighbourhood social cohesion was significantly lower for foreign-born (mean = 3.57) compared to native-born (mean = 4.33) older adults (t = 5.5, p < .001). After adjusting for sociodemographic, health and neighbourhood variables, foreign-born older adults had a 51% significantly higher dementia risk (adjusted hazard ratio = 1.51, 95% CI = 1.19–1.90, p < .01). There were no significant interactions for nativity with neighbourhood physical disorder or social cohesion.

Conclusions
Our findings suggest that foreign-born older adults have higher neighbourhood physical disorder and lower social cohesion compared to native-born older adults. Despite the higher dementia risk, we observed for foreign-born older adults, and this relationship was not moderated by either neighbourhood physical disorder or social cohesion. Further research is needed to understand what factors are contributing to elevated dementia risk among foreign-born older adults.
Confirming resistance to PPO-inhibiting herbicides applied preemergence and postemergence in a Georgia Palmer amaranth population
Authors: Randell-Singleton Taylor , Hand Lavesta C. , Vance Jenna C. , Wright-Smith Hannah E. , Culpepper A. Stanley 
Published: February 2024

Abstract
Herbicides that inhibit protoporphyrinogen oxidase (PPO) are used in more than 40 agronomic and specialty crops across Georgia to manage weeds through residual and postemergence (POST) control. In 2017, a population of Palmer amaranth exhibiting reduced sensitivity to POST applications of PPO-inhibiting herbicides was identified by the University of Georgia. Seed were collected from the site along with a known sensitive population; distance between the samples was 200 m, increasing the likelihood of similar environmental and genetic characteristics. To quantify sensitivity for both preemergence (PRE) and POST uses, 21 greenhouse dose-response assessments were conducted from 2017 to 2022. After conducting initial rate-response studies, 13 doses per herbicide were chosen for the POST experiment; field use rates of fomesafen (420 g ai ha−1), lactofen (219 g ai ha−1), acifluorfen (420 g ai ha−1), and trifludimoxazin (25 g ai ha−1) ranging from 0× to 4× the field use rate for the susceptible population, and 0× to 40× for the suspect population were applied. Herbicide treatments included adjuvants and were applied to plants 8 to 10 cm in height. Relative resistance factors (RRFs) were calculated for control ratings, mortality, and biomass, and ranged from 105 to 318, 36 to 1,477, 215 to 316, and 9 to 49 for fomesafen, lactofen, acifluorfen, and trifludimoxazin, respectively. In the PRE experiment, herbicide applications included five to nine doses of fomesafen (1× = 210 g ai ha−1), flumioxazin (1× = 57 g ai ha−1), oxyfluorfen (1× = 561 g ai ha−1), and trifludimoxazin (1× = 38 g ai ha−1); doses ranged from 0× to 6× for the suspect population and 0× to 2× for the susceptible population. Visual control, mortality, and biomass RRFs ranged from 3 to 5 for fomesafen, 21 to 31 for flumioxazin, 6 to 22 for oxyfluorfen, and 8 to 38 for trifludimoxazin. Results confirm that a Georgia Palmer amaranth population is resistant to PPO-inhibiting herbicides applied both PRE and POST.
Prototype System for Unmanned Reference Point Determination at the Sub‐Millimeter Level
Authors: Zhang Zhibin , Wang Zhikang , Ma Xiaohui , Sun Zhengxiong , Xu Dezhen , Huang Chengli , Wang Guangli , Qi Zhaoxiang 
Published: February 2024

AbstractThe determination of reference points for telescopes is crucial for obtaining the local‐tie vector for a multi‐technology co‐located station. Traditional methods suffer from labor‐intensive fieldwork, long execution cycles, and systematic errors due to the incident angle of the total station's laser beam on the prism. In this paper, we propose an algorithm aligning the prism pointing vector with the prism‐to‐total station vector and introduce a pan‐tilt platform and the Tianma VGOS telescope for sub‐millimeter unmanned reference point monitoring. Our results show that the prototype system based on the pan‐tilt achieves a formal error of ±100 μm (1σ) in reference point positions with just 2.5 hr of automated monitoring. The consistency of reference point positions is comparable to the local control network accuracy. Single‐direction observations may introduce a deviation of ±1 mm in the reference point compared to multiple direction observations. Preliminary experiments on the Tianma VGOS telescope have also shown that this system can efficiently automate the monitoring of prism scatter points (one measurement every minute) and achieve sub‐millimeter horizontal precision in reference point positions within a single day.
Mars Reconnaissance Orbiter Context Camera Updated In‐Flight Calibration
Authors: Walter S. H. G. , Aye K.‐M. , Jaumann R. , Postberg F. 
Published: February 2024

AbstractThe image data of the Context Camera (CTX) of the Mars Reconnaissance Orbiter require a flat‐field correction that is currently available as a plain text file in the Planetary Data System “Calib” folders for all CTX Enhanced Data Record releases or automatically implemented as part of the ctxcal application of the Integrated Software for Images and Spectrometers (ISIS). We noticed (a) differences between these two flat‐fields and (b) residual edge darkening (vignetting) after applying ctxcal. This work examines in detail the edge‐darkening effect over time and creates a new improved flat‐field calibration file to be implemented into the ISIS ctxcal application as a new default. We introduce a method to quantify the vignetting effect and its residuals after regular ISIS calibration. With the old calibration, the amount of residual edge‐darkening is about eight percent. We prove that the new calibration does remove the effect completely, does not introduce any artifacts and qualitatively and quantitatively validate newly calibrated images. Mosaics produced with images that have been calibrated with our new flatfield show immediately less striping issues, without the application of any standard mosaicking‐related tone‐matching techniques.
Vegetation Productivity Slowdown on the Tibetan Plateau Around the Late 1990s
Authors: Ren Yanghang , Wang Han , Yang Kun , Li Wei , Hu Zhongmin , Ma Yaoming , Qiao Shengchao 
Published: February 2024

AbstractTibetan Plateau (TP) has experienced a slowdown of the vegetation greening since the late 1990s. This structural change (i.e., greening) along with canopy physiology (i.e., potential photosynthetic productivity) regulates vegetation gross primary productivity (GPP). However, it remains unclear how the joint regulation influences the trend of alpine GPP under climate change. Here, we validate a universal productivity model against flux‐based and satellite‐derived observations at TP and diagnose the long‐term climatic impacts on GPP via canopy physiology and structure. We found an increasing but weakening trend of GPP after 1998. About 3/4 of this slowdown was attributed to the slowing greening after 1998, which was caused by the fact that the stress of atmospheric aridity and reduced benefits of warming overwhelmed the positive effects of CO2 fertilization and radiation enhancement. This study highlights the coupling between canopy structure and productivity for the long‐term period.
Checking Key Assumptions of the Kennel‐Petschek Flux Limit With ELFIN CubeSats
Authors: Mourenas D. , Artemyev A. V. , Zhang X.‐J. , Angelopoulos V. 
Published: February 2024

AbstractIn planetary radiation belts, the Kennel‐Petschek flux limit is expected to set an upper limit on trapped electron fluxes at 80–600 keV in the presence of efficient electron loss through pitch‐angle diffusion by whistler‐mode chorus waves generated around the magnetic equator by the same 80–600 keV electron population. Comparisons with maximum measured fluxes have been relatively successful, but several key assumptions of the Kennel‐Petschek model have not been experimentally tested. The Kennel‐Petschek model notably assumes an exponential growth of chorus waves as the trapped electron flux increases, and a fixed maximum wave power gain of about 3. Here, we describe a method for inferring the near‐equatorial wave power gain using only measurements of trapped, precipitating, and backscattered electron fluxes at low altitude. Next, we make use of Electron Losses and Fields Investigation (ELFIN) CubeSats measurements of such electron fluxes during two moderate geomagnetic storms with sustained electron injections to infer the corresponding chorus wave power gains as a function of time, energy, and equatorial trapped electron flux. We show that wave power increases exponentially with trapped flux, with a wave power gain roughly proportional to the theoretical linear convective gain, and that the maximum inferred gain near the upper flux limit is roughly 10, with a factor of 2 uncertainty. Therefore, two key theoretical underpinnings of the Kennel‐Petschek model are borne out by the present results, although the strong inferred gains should correspond to higher flux limits than in traditional estimates.