bluuebunny/crossref_metadata_2025 huggingface dataset:
Phrasal frequency and literacy as predictors of individual differences in on-line processing and comprehension of English complex NP subject-verb agreement
Authors: Patterson Kinga , Street James A. , Myachykov Andriy
Published: November 2024

We present experimental evidence suggesting that frequency and literacy predict online processing and comprehension of subject-verb agreement constructions by adult native speakers of English. We measured participants’ eye fixations, reaction times, and response accuracy in a forced-choice task using audio-visual eye-tracking paradigm. Participants completed a battery of tasks, inc. the Literacy Rating Scale (Tarone et al., Literacy and Second Language Oracy-Oxford Applied Linguistics, Oxford University Press, 2013), Agreement Judgement Task (e.g., Veenstra et al., Frontiers in Psychology 5:783, 2014). The AJT involved matching an auditorily presented subject phrase to one of two images of easily distinguishable colours presented on a computer screen (e.g., stars, circles). Participants heard 42 test sentences, counterbalanced across the three types: Type 1 (e.g., ‘The stars with the circles are blue’), Type 2 (e.g., ‘The star with the circles is blue’) and Type 3 (e.g., ‘The star with the circles are blue’*. Type 1 and Type 2 constructions are considerably more frequent in writing than in speech (Miller et al., Spontaneous spoken language: Syntax and discourse, Oxford University Press on Demand, 1998) with Type 2 producing more attraction errors (Bock et al., Cognitive Psychology 43:83–128, 2001; Becker, L., & Dąbrowska, E. (2020). Does experience with written language influence grammaticality intuitions? UK Cognitive Linguistics Conference: University of Birmingham [conference presentation].). Data were analysed with linear mixed effects models and generalised additive models. Results show lower literacy participants took longer to process sentential cues and made more attraction errors. These findings support usage-based research showing frequency and experience effects on online comprehension of canonical and non-canonical constructions (Farmer, T. A., Misyak, J. B., & Christiansen, M. H. (2012). Individual differences in sentence processing. In Cambridge handbook of psycholinguistics (pp. 353-364)., Street, Language Sciences 59:192–203, 2017), detection and production of agreement attraction errors (Becker, L., & Dąbrowska, E. (2020). Does experience with written language influence grammaticality intuitions? UK Cognitive Linguistics Conference: University of Birmingham [conference presentation].) and demonstrate how linguistic and attentional processes interact (Tomlin and Myachykov, Attention and salience, Handbook of Cognitive Linguistics, 2015). They also complement corpus-based studies by providing evidence that native speakers are sensitive to observed distributions (Miller et al., Spontaneous spoken language: Syntax and discourse, Oxford University Press on Demand, 1998).
An Analysis of the Food and Drug Administration Manufacturer and User Facility Device Experience Database for MAGnetic Expansion Control Spinal Rods
Authors: Filan Jack , Bowey Andrew , Joyce Thomas
Published: November 2024

Background

MAGnetic Expansion Control (MAGEC) rods can prevent repeated lengthening operations for scoliosis patients. However, there have been several Field Safety Notices issued, including a worldwide product recall due to actuator endcap separation. We aimed to review adverse events reported to the Food and Drug Administration (FDA) regarding MAGEC rods, focusing on MAGEC X.

Methods

Reports submitted to the Manufacturer and User Facility Device Experience database in relation to MAGEC devices were accessed and analysed using R Statistical Software. Exclusion criteria included duplicate and literature review reports (n = 54). Free-text data were analysed using inductive content analysis.

Results

1016 adverse events were reported to 11/30/2023. 99.0% (1006) were submitted by the manufacturer. Reports primarily arose from the UK (465, 45.8%) or US (421, 41.4%). From free-text data the most frequent adverse events were distraction mechanism failure (573), device wear (272), and actuator seal damage (180). Rod fracture (n = 48) was not significantly associated with rod diameter (≤ 5.0 mm or > 5.0 mm), p = 0.736. 234 reports referenced MAGEC X devices; actuator endcap separation was identified in 41.9% (99). Other events include failure of distraction (63), surface damage (31), and rod fracture (15). On 06/30/2020 MAGEC X2 received FDA approval. Twenty reports reference devices manufactured after this date, seven describe distraction mechanism failure; notably there are no reports of endcap separation.

Conclusion

These data represent the largest series of adverse events reported for MAGEC rods, including significant new data regarding MAGEC X. As well as endcap separation, failure of distraction, surface damage, and rod fracture were reported.
Single-cell transcriptomic analysis reveals the developmental trajectory and transcriptional regulatory networks of quinoa salt bladders
Authors: Liu Hao , Liu Zhixin , Zhou Yaping , Qin Aizhi , Li Chunyang , Liu Yumeng , Gao Peibo , Zhao Qianli , Song Xiao , Li Mengfan , Kong Luyao , Xie Yajie , Yan Lulu , Guo Enzhi , Sun Xuwu
Published: November 2024

Salt bladders, specialized structures on the surface of quinoa leaves, secrete Na+ to mitigate the effects of the plant from abiotic stresses, particularly salt exposure. Understanding the development of these structures is crucial for elucidating quinoa’s salt tolerance mechanisms. In this study, we employed transmission electron microscopy to detail cellular differentiation across the developmental stages of quinoa salt bladders. To further explore the developmental trajectory and underlying molecular mechanisms, we conducted single-cell RNA sequencing on quinoa protoplasts derived from young leaves. This allowed us to construct a cellular atlas, identifying 13 distinct cell clusters. Through pseudotime analysis, we mapped the developmental pathways of salt bladders and identified regulatory factors involved in cell fate decisions. GO and KEGG enrichment analyses, as well as experimental results, revealed the impacts of salt stress and the deprivation of sulfur and nitrogen on the development of quinoa salt bladders. Analysis of the transcription factor interaction network in pre-stalk cells (pre-SC), stalk cells (SC), and epidermal bladder cells (EBCs) indicated that TCP5, YAB5, NAC078, SCL8, GT-3B, and T1P17.40 play crucial roles in EBC development. Based on our findings, we developed an informative model elucidating salt bladder formation. This study provides a vital resource for mapping quinoa leaf cells and contributes to our understanding of its salt tolerance mechanisms.
Flattening behaviour of weft-knitted spacer fabrics
Authors: Le Coz Ulysse , Ringenbach Pierre , Sakuma Atsushi , Yu Annie
Published: November 2024

Weft-knitted spacer fabrics are thick 3D knitted structures prized for their cushioning properties which have gathered increasing attention in the last decade. The thickness of a spacer fabric is one of its most influential parameters and strongly impacts its cushioning properties, wearability, thermal insulation or permeability. However, the fabric's natural undulation and high deformability make its thickness measurement uneasy. The current standard measurement methods require to measure the fabric thickness after compressing it until a fixed threshold stress value is reached to flatten it. The diversity of these threshold values is confusing, and each of them is unsuitable to variety of fabric rigidity. In this article, a standard for thickness evaluation was proposed and used to measure the thickness of 20 samples knitted with 5 independent parameters. The measured thickness was compared to the thickness measured at a threshold value of 1 kPa and to a theoretical thickness. The proposed measurement standard was proved reproducible and efficient for all fabrics when the threshold measures showed large errors on the softer and stiffer samples. The flattening stress of the fabrics ranged from 86 to 5262 Pa and could not be approximated by a single standard value. The theoretical thickness was more accurate, predicting the thickness with an average error of 3.8%.
COMET: monitoring mitochondrial shock in anesthesiology and intensive care medicine
Authors: Yang Yan , Zhang Wei , Ma Zhengliang , Gu Xiaoping
Published: November 2024

Mitochondria, as the cellular end-users of oxygen and responsible for approximately 98% of total body oxygen consumption, play a significant role in the development of organ dysfunction during shock. Therefore, integrating information on mitochondrial oxygen homeostasis with macroscopic observations of macrocirculation and microcirculation is crucial for monitoring critically ill patients or those undergoing high-risk surgery. However, current clinical practice still lack reliable surrogate parameters for assessing mitochondrial function. The Cellular Oxygen METabolism (COMET) monitor, utilizing the protoporphyrin IX triplet state lifetime technique (PpIX-TSLT), represents the first clinical device capable of non-invasive, in vivo measurement of mitochondrial oxygen pressure and oxidative phosphorylation. Recent research suggests that implementing this real-time bedside monitoring will provide additional insights into microcirculatory dynamics and enhance patient management. This review will comprehensively detail the rationale, methodologies, evolution, and clinical applications of the technique, aiming at improving the understanding of mitochondrial pathology in daily clinical practice and facilitating the development of targeted therapeutic strategies.

Graphical Abstract
Robotic process automation – research impulses from the BPM 2023 panel discussion
Authors: Plattfaut Ralf , Rehse Jana-Rebecca , Jans Caspar , Schulte Matthias , van Wendel de Joode Joost
Published: November 2024

Robotic Process Automation is an established technology in organizations. In the last years, it has also received considerable attention in scholarly research with publications, special issues, and academic conferences dedicated to the topic. Given that Robotic Process Automation has now moved beyond the initial hype, we can ask what research should focus on in the future. To address this question, we conducted a panel discussion to discuss its current state and future development. This panel, which took place at the Robotic Process Automation forum at the Business Process Management Conference 2023, included experts from academia and industry, covering strategy consultants, implementers, and tool providers. In this report, we present insights from the panel discussions. We especially focus on three future research directions on Robotic Process Automation that emerged from the panel.
In the Shadow of the Global North
Authors: Wahutu j. Siguru
Published: November 2024

In the Shadow of the Global North unpacks the historical, cultural, and institutional forces that organize and circulate journalistic narratives in Africa to show that something complex is unfolding in the postcolonial context of global journalistic landscapes, especially the relationships between cosmopolitan and national journalistic fields. Departing from the typical discourse about journalistic depictions of Africa, j. Siguru Wahutu turns our focus to the underexplored journalistic representations created by African journalists reporting on African countries. In assessing news narratives and the social context within which journalists construct these narratives, Wahutu captures not only the marginalization of African narratives by African journalists but opens up an important conversation about what it means to be an African journalist, an African news organization, and African in the postcolony.
Questioning Migrants
Authors: Naqvi Tahir H.
Published: November 2024

The Muhajir Qaumi Movement (MQM), propelled by ethnic violence and led by university students with lower-middle-class backgrounds, transformed the cities of the southern Pakistani province of Sindh into an ethnic majoritarian stronghold at the unlikely height of a military dictatorship. The more novelaspect of the MQM's platform was it demand for the recognition of Muhajirs as a separate, 'oppressed nationality' within Pakistan. Questioning Migrants is a granular historical and ethographic study of the MQM's capacity to think beyond the exlusivism of Muhajir nationalism toward its contingency and toward a more plural and subaltern framing of the universal. It speaks to significant themes in Pakistan Studies: the legacies of Partition, the rise of the martial state, and the dynamics of urbanization and democracy.
African Studies Keyword: Organic
Authors: Rahier Nick , Devos Emelien
Published: November 2024

The concept of the organic serves as a keyword capturing emerging practices and epistemologies through which Africans navigate increasingly toxic lifeworlds. Noting a growing preoccupation with this term, the authors unpack its meaning based on their ethnographic fieldwork concerning two East African idioms: kienyeji and kiasili. What it means to be(come) organic is tied to older notions such as life flow, tradition, and the natural. Tracing how this concept engages with central themes in Africanist debates, the authors demonstrate that an Africanist theorizing about it foregrounds critical claims about the vitality of bodies and the viability of environments.
Cybersecurity Framework for Synthetic Data in Training Medical AI
Authors: Greser Jarosław
Published: November 2024

The development of medical artificial intelligence is dependent on the availability of vast quantities of data, a considerable proportion of which is medical data containing sensitive information pertaining to the health and well-being of patients. The use of such data is subject to extensive legal regulation and is further hindered by financial and organisational constraints, which can result in limitations on accessibility. One potential solution to this problem is the use of synthetic data. This article examines the potential for their use in light of cybersecurity requirements derived from horizontal and sectoral EU legislation. The outcome of this analysis is that EU legislation does not contain specific regulations on the use of synthetic data. Consequently, it cannot be concluded that there is any prohibition on their use. Moreover, while the Medical Device Regulation (MDR) contains some general requirements for cybersecurity, these are further specified by the provisions of the AI Act. It is important to note, however, that the AI Act will not apply to Class I medical devices, which are subject only to the MDR. Furthermore, only indirect obligations within the scope under consideration can be derived from the horizontal regulations, which will apply in a limited number of cases.
Side-heated Rayleigh–Bénard convection
Authors: Huang Jinzi Mac , Zhang Jun
Published: November 2024

Unlike in solids, heat transfer in fluids can be greatly enhanced due to the presence of convection. Under gravity, an unevenly distributed temperature field results in differences in buoyancy, driving fluid motion that is seen in Rayleigh–Bénard convection (RBC). In RBC, the overall heat flux is found to have a power-law dependence on the imposed temperature difference, with enhanced heat transfer much beyond thermal conduction. In a bounded domain of fluid such as a cube, how RBC responds to thermal perturbations from the vertical sidewall is not clear. Will sidewall heating or cooling modify flow circulation and heat transfer? We address these questions experimentally by adding heat to one side of the RBC. Through careful flow, temperature and heat flux measurements, the effects of adding side heating to RBC are examined and analysed, where a further enhancement of flow circulation and heat transfer is observed. Our results also point to a direct and simple control of the classical RBC system, allowing further manipulation and control of thermal convection through sidewall conditions.
Maximal operators along flat curves with one variable vector field
Authors: Kim Joonil , Oh Jeongtae
Published: November 2024

We study a maximal average along a family of curves $\{(t,m(x_1)\gamma(t)):t\in [-r,r]\}$, where $\gamma|_{[0,\infty)}$ is a convex function and m is a measurable function. Under the assumption of the doubling property of $\gamma'$ and $1\leqslant m(x_1)\leqslant 2$, we prove the $L^p(\mathbb{R}^2)$ boundedness of the maximal average. As a corollary, we obtain the pointwise convergence of the average in r > 0 without any size assumption for a measurable m.
Denying the Obvious: Why Do Nominally Covert Actions Avoid Escalation?
Authors: Bloch Chase , McManus Roseanne W.
Published: November 2024

In 2014, Russia denied that its military was assisting separatists in eastern Ukraine, despite overwhelming evidence. Why do countries bother to deny hostile actions like this even when they are obvious? Scholars have argued that making hostile actions covert can reduce pressure on the target state to escalate. Yet it is not clear whether this claim applies when evidence of responsibility for the action is publicly available. We use three survey experiments to test whether denying responsibility for an action in the presence of contradictory evidence truly dampens demand for escalation among the public in the target state. We also test three causal mechanisms that might explain this: a rationalist reputation mechanism, a psychological mechanism, and an uncertainty mechanism. We do find a de-escalatory effect of noncredible denials. The effect is mediated through all three proposed causal mechanisms, but uncertainty and reputational concern have the most consistent effect.
The Moral Economy of the Ugandan Crowd in 1945
Authors: Hanson Holly
Published: November 2024

In 1945, actions which have been understood as strikes against wartime inflation occurred across colonized Africa: this essay identifies a deeper motivation in the events which happened in the Uganda Protectorate in early 1945. An understanding that people had a moral responsibility to act, and leaders had a moral responsibility to see them, to listen, and to respond led from a mobilization of workers on town streets, to efforts to see wrongful deaths acknowledged, to gatherings in the courtyard of the Buganda king in which he was almost overthrown. In each of the three stages of the protest, Ugandans of different ethnicities asserted an ethic of mutual obligation which acknowledged no boundary between the political and the economic, spoke to authority with an expectation that they would be heard, and drew on enduring knowledge of politics as well as a range of new ideas to solve the problems they confronted.
(Re)writing commentaries: Alexander on Metaphysics V 2 and Simplicius on Physics II 3
Authors: Kotwick Mirjam E.
Published: November 2024

This article presents and analyses new evidence for how Simplicius made use of Alexander of Aphrodisias for his commentary on Aristotle’s Physics. Alexander’s commentary on the Physics is lost to us (except for scholia on Physics IV–VIII), but, as argued in section II of this article, we have a slightly abridged version of Alexander’s commentary on Physics II 3 in the form of his commentary on Metaphysics V 2 (Aristotle’s Physics II 3 and Metaph. V 2 are more or less identical). This allows a comparison of Alexander’s and Simplicius’ commentaries on the same Aristotelian text. In section III, it is shown that Simplicius relies much more extensively on Alexander than his explicit references indicate. In section IV, it is shown that (a) when Simplicius refers to Alexander disapprovingly, he reports reliably what Alexander said, but that (b) when Simplicius refers to Alexander approvingly and as an authority in support of his own view, he provides a tendentious interpretation of Alexander’s argument. My results help to evaluate Simplicius’ reliability as a witness to the many works of ancient philosophy for which he is our only source.
Temporal dynamics of unmet long-term care needs in China: an age period cohort analysis
Authors: Zhang Jingwen
Published: November 2024

Rapid demographic changes and heavy reliance on informal care pose significant challenges to meeting long-term care (LTC) needs in China. Understanding changes in unmet LTC needs across different times and places can inform future LTC system planning and care resource allocation, identifying emerging care needs and services gaps in different regions. Drawing on data from 6,030 urban and 5,070 rural residents in the Chinese Longitudinal Health Longevity Survey 2005–2017/18, this study investigates variations in unmet LTC needs across different age groups, periods and birth cohorts among Chinese older adults and their place-based rural–urban differences. We applied the age-period-cohort interaction model to disentangle the three temporal processes, and found that, overall, rural older adults experienced higher risk of unmet LTC needs and had larger variation in age effects, yet the age, period and cohort effects on unmet needs among rural older people differed from their urban counterparts. Although ‘younger’ older adults (aged below 85) had fewer care needs than older adults, they had a higher risk of experiencing unmet needs. The risk of having unmet needs did not change significantly over the 12 years, though unmet LTC needs were more pronounced among more-recent cohorts than previous generations, especially in urban areas. The findings contribute to the social gerontology debate regarding changing patterns in unmet LTC needs, and provide crucial policy insights, underscoring the necessity of targeted interventions to address ‘younger’ older adults’ care needs and increased investmed in the formal LTC system to tackle the escalating care gap.
Textiles and Staple Finance in the Near East and the Southern Levant
Authors: Joffe Alex
Published: November 2024

Textiles have long been recognized as a key feature in the economic and social development of early complex societies. Many comparative dimensions, however, remain unexplored, including within the ancient Near East. Unlike contemporary societies in Syria and Mesopotamia, wool was not used as a staple finance good in the Early Bronze Age southern Levant (c. 3700–2000 bce) since the landscape could not permit adequately scaled production. In larger cultural regions wool was produced at vast scales and helped underpin royal institutions. But without a non-perishable, high-volume and high-value commodity like wool, staple finance in the southern Levant was restricted to seasonally produced grain, wine and oil, primarily used in exchange for local labour. Moreover, without wool there was little need in the southern Levant for the administrative and security technologies used elsewhere, namely seals and sealing, and later, writing. This limited the development of complex institutions and cognitive abilities.
The COVID-19 lockdown paradox: democratic support during democratic restrictions
Authors: Oana Ioana-Elena , Bojar Abel , Wang Chendi
Published: November 2024

Previous research has shown that positive perceptions of government performance are linked to higher levels of citizens’ support for democracy. However, the policy response to the COVID-19 crisis presented a unique paradox as relative success in preventing the virus spread depended on expanding executive powers, often at the cost of individual freedoms. Exploring this paradox, we investigate whether the link between perceptions of government performance and support for democracy holds in a situation where positive performance essentially means a restriction of freedoms. Using original survey data from seven European countries, we show that notwithstanding the democratic sacrifices, people with positive evaluations of the government’s response are more likely to maintain support for the democratic system. Nevertheless, people weighed responses to the health domain more heavily than to the economic domain, suggesting that the output legitimacy – democratic support link varies across domain-specific evaluations.
Trifludimoxazin mixtures for preplant burndown weed control in soybean
Authors: Steppig Nicholas R. , Johnson William G. , Young Bryan G.
Published: November 2024

Trifludimoxazin is a novel protoporphyrinogen oxidase (PPO)-inhibiting herbicide currently under development for foliar and residual control of several problematic weeds in preplant applications for soybean production. Field experiments were conducted in 2017 and 2018 to evaluate the foliar efficacy of trifludimoxazin applied alone and in combination with other herbicides on waterhemp, giant ragweed, and horseweed. Foliar applications of trifludimoxazin alone at 12.5 or 25.0 g ai ha−1 were highly efficacious on glyphosate-resistant waterhemp (94% to 99% control) and moderately effective on giant ragweed (78% to 79% control) and resulted in minor efficacy on horseweed (≤20% control). Combinations of trifludimoxazin with glufosinate, glyphosate, paraquat, or saflufenacil remained highly effective (≥91% control) on waterhemp and giant ragweed. All herbicide mixtures with trifludimoxazin applied to horseweed were classified as additive interactions. Greenhouse experiments and Isobole analysis indicated that trifludimoxazin mixtures with glyphosate and glufosinate on waterhemp and giant ragweed were additive. Mixtures of trifludimoxazin + paraquat were slightly antagonistic under greenhouse conditions when applied to either waterhemp or giant ragweed, whereas trifludimoxazin + saflufenacil was synergistic when applied to giant ragweed. Overall, trifludimoxazin applied alone at 12.5 or 25.0 g ha−1 is effective for managing waterhemp and, to an extent, giant ragweed, but not horseweed, in preplant burndown applications. Furthermore, the addition of glufosinate, glyphosate, paraquat, or saflufenacil to applications of trifludimoxazin does not appreciably reduce weed control for these mixtures. As such, applications of trifludimoxazin alone and in combination with these herbicides may be utilized for effective preplant management of several problematic weeds in soybean.
Influence of application timing and cultivar on soybean tolerance and weed control from diflufenican or a diflufenican-containing premixture
Authors: Woolard Matthew C. , Norsworthy Jason K. , Barber L. Tom , Roberts Trenton L. , Thrash Benjamin C. , Sprague Christy L. , Godar Amar S.
Published: November 2024

Bayer Crop Science anticipates launching several premixtures for use in soybean, targeted at control of Palmer amaranth. One of the premixtures will contain diflufenican (Weed Science Society of America [WSSA] Group 12), metribuzin (WSSA Group 5), and flufenacet (WSSA Group 15) (DFF-containing premixture), offering an alternative site of action for soybean producers. Field experiments were conducted in Arkansas and Michigan to evaluate application timings of the DFF-containing premixture for soybean tolerance and weed control and possible cultivar tolerance differences to diflufenican and the DFF-containing premixture. Soybean injury from the 1X and 2X rates of the DFF-containing premixture ranged from 0% to 60% 14 d after planting (DAP), with injury increasing the closer the herbicide was applied to soybean emergence. Excluding the 2X rate applied 3 DAP in Arkansas in 2023, soybean injury was <20% regardless of location, site-year, application timing, and rate. For weed control experiments, only a 1X rate of the DFF-containing premixture was applied at the various application timings. Control of five weed species, encompassing broadleafs and grasses, ranged from 81% to 98%, regardless of application timing, by 28 DAP. By 42 DAP, weed control ranged from 71% to 97%, with the 14-d preplant application timing typically being the least effective. The DFF-containing premixture and diflufenican alone were applied PRE at 1X and 2X rates for the soybean cultivar study. Soybean metribuzin sensitivity did not affect the degree of crop response, even in a high-pH soil, and injury to soybean never exceeded 20%. Overall, the DFF-containing premixture will be a tool that soybean producers can integrate into a season-long herbicide program for use across the United States regardless of soybean cultivar.
Axant™ Flex cotton response to topramezone applied early- or mid-postemergence
Authors: Singletary Megan M. , Dotray Peter A. , Baldwin Gregory , Pabuayon Irish L.B. , Asher Scott , Hixson Adam C.
Published: November 2024

The continued development of herbicide-resistant weeds, such as Palmer amaranth, represents a growing concern across the United States Cotton Belt. To mitigate this issue, BASF Corporation developed Axant™ Flex cotton, the first quadruple-stacked herbicide resistance germplasm to improve the control of troublesome weed species in cotton. Field studies were conducted in 2022 and 2023 at the Texas Tech University Research Farm near New Deal, TX, to evaluate the response of Axant Flex cotton to topramezone applied alone or in combinations when applied to 3-leaf cotton (early-postemergence (EPOST)) or to 7-leaf cotton (mid-postemergence (MPOST)). No difference in cotton stand was observed between isoxaflutole or prometryn PRE treatments compared to the nontreated control. In 2022, no EPOST treatment caused greater than 6% crop response at 7 and 14 d after application (DAA). When treatments were made to 7-leaf cotton, crop response did not exceed 18% at 7 and 14 DAA. In 2023, crop response was ≤ 2% at 28 DAA regardless of application timing. No differences in lint yield were observed following any herbicide treatment when compared to the nontreated control in either year. Additionally, fiber length and strength were not adversely affected by treatments containing topramezone EPOST or MPOST in 2022 and 2023. These results support the potential use of topramezone in Axant Flex cotton to help manage troublesome weeds without detrimental effects on yield and fiber quality.
Planting strategy influences vegetable response to glyphosate and glufosinate applied preplant in plasticulture
Authors: Randell-Singleton Taylor , Hand Lavesta C. , Wright-Smith Hannah E. , Vance Jenna C. , Culpepper A. Stanley
Published: November 2024

In Georgia plasticulture vegetable production, a single installation of plastic mulch is used for up to five cropping cycles over an 18-mo period. Preplant applications of glyphosate and glufosinate ensure fields are weed-free before transplanting, but recent data suggest that residual activity of these herbicides may pose a risk to transplanted vegetables. Glyphosate and glufosinate were applied preplant in combination with three different planting configurations, including 1) a new plant hole into new mulch, 2) a preexisting plant hole, 3) or a new plant hole spaced 15 cm from a preexisting plant hole (adjacent). Following herbicide application, overhead irrigation was used to remove residues from the mulch before punching transplanting holes for tomato, cucumber, or squash. Visible injury; widths; biomass; and yield of tomato, cucumber, or squash were not influenced by herbicide in the new mulch or adjacent planting configurations. When glyphosate was applied at 5.0 kg ae ha−1 and the new crop was planted into preexisting holes, tomato was injured by 45%, with reduced heights, biomass, and yields; at 2.5 kg ae ha−1 injury of 8% and a biomass reduction was observed. Cucumber and squash were injured by 23% to 32% by glyphosate at 5.0 kg ae ha−1, with reductions in growth and early-season yield; lower rates did not influence crop growth or production when the crop was placed into a preexisting plant hole. Glufosinate applied at the same rates did not affect tomato growth or yield when planted into preexisting plant holes. Cucumber, when planted into preexisting plant holes, was injured by 43% to 75% from glufosinate, with reductions in height and biomass, and yield losses of 1.3 to 2.6 kg ai ha−1; similar results from glufosinate were observed in squash. In multi-crop plasticulture production, growers should ensure vegetable transplants are placed a minimum of 15 cm away from soil exposed to these herbicides.
Multiple herbicide resistance among kochia (Bassia scoparia) populations in the southcentral Great Plains
Authors: Dhanda Sachin , Kumar Vipan , Manuchehri Misha , Bagavathiannan Muthukumar , Dotray Peter A. , Dille J. Anita , Obour Augustine , Yeager Elizabeth A. , Holman Johnathan
Published: November 2024

Multiple herbicide–resistant (MHR) kochia [Bassia scoparia (L.) A.J. Scott] is a concern for farmers in the Great Plains. A total of 82 B. scoparia populations were collected from western Kansas (KS), western Oklahoma (OK), and the High Plains of Texas (TX) during fall of 2018 and 2019 (from the various locations), and their herbicide resistance status was evaluated. The main objectives were to (1) determine the distribution and frequency of resistance to atrazine, chlorsulfuron, dicamba, fluroxypyr, and glyphosate; and (2) characterize the resistance levels to glyphosate, dicamba, and/or fluroxypyr in selected B. scoparia populations. Results indicated that 33%, 100%, 48%, 30%, and 70% of the tested B. scoparia populations were potentially resistant (≥20% survival frequency) to atrazine, chlorsulfuron, dicamba, fluroxypyr, and glyphosate, respectively. A three-way premixture of dichlorprop/dicamba/2,4-D provided 100% control of all the tested populations. Dose–response studies further revealed that KS-9 and KS-14 B. scoparia populations were 5- to 10-fold resistant to dicamba, 3- to 6-fold resistant to fluroxypyr, and 4- to 5-fold resistant to glyphosate as compared with the susceptible (KS-SUS) population. Similarly, OK-10 and OK-11 populations were 10- to 13-fold resistant to dicamba and 3- to 4-fold resistant to fluroxypyr and glyphosate compared with the OK-SUS population. TX-1 and TX-13 B. scoparia populations were 2- to 4-fold resistant to dicamba, and TX-1 was 5-fold resistant to glyphosate compared with the TX-SUS population. These results confirm the first report of dicamba- and fluroxypyr-resistant B. scoparia from Oklahoma and glyphosate- and dicamba-resistant B. scoparia from Texas. These results imply that adopting effective integrated weed management strategies (chemical and nonchemical) is required to mitigate the further spread of MHR B. scoparia in the region.
Entwicklung von Items zur Einschätzung der pädiatrischen Inkontinenz-assoziierten Dermatitis in deutscher Sprache
Authors: Reick Sibylle , Blume-Peytavi Ulrike , Walcher Bettina , Palm Rebecca
Published: November 2024

Zusammenfassung: Hintergrund: Die pädiatrische Inkontinenz-assoziierte Dermatitis (PIAD) ist ein häufiges Problem bei Früh- und Neugeborenen, Säuglingen und Kleinkindern. Standardisierte Instrumente zur Einschätzung der PIAD können die klinische Entscheidungsfindung unterstützen, jedoch liegt für den deutschsprachigen Raum kein standardisiertes Instrument vor. Ziel: Auswahl, Entwicklung und Zustimmung von geeigneten Items zur Einschätzung der PIAD von Neugeborenen, Säuglingen und Kleinkindern in deutscher Sprache ( aIADchild Delphi). Methode: Mit einem Delphi-Verfahren wurden internationale Items in deutscher Sprache durch ein Lenkungsgremium formuliert, die Items mittels einer Online-Befragung durch Panelisten beurteilt sowie ein Konsens (I-CVI > = 75%, Kommentare) durch das Lenkungsgremium und der Panelisten gebildet. Ergebnisse: 54 Expert_innen aus vier deutschsprachigen Ländern wurden rekrutiert. 44 (1. Runde) bzw. 33 (2. Runde) schlossen den Fragebogen vollständig ab. Zwölf Items zur Einschätzung der PIAD wurden als relevant, verständlich und vollständig bewertet: Erythem, Hautveränderung ohne und mit Schädigung der Hautoberfläche, Exsudation, Blutung, Ödem, Überwärmung, Zeichen einer mykotischen/bakteriellen Superinfektion, Schmerz, Juckreiz, Lokalisation/Ausdehnung und Dauer. Schlussfolgerung: Die Items aIADchild Delphi zur Einschätzung der PIAD in deutscher Sprache sollten vor dem klinischen Einsatz und der Konstruktion eines Instrumentes auf ihre Messeigenschaften überprüft werden.
Impact of Surface Turbulent Fluxes on the Formation of Roll Vortices in a Mediterranean Windstorm
Authors: Lfarh Wahiba , Pantillon Florian , Chaboureau Jean‐Pierre , Brumer Sophia E.
Published: November 2024

Roll vortices can have a significant influence on the exchanges of momentum, sensible heat and moisture throughout the boundary layer. They have been shown to reinforce air‐sea interactions under strong wind conditions. This raises the question of how air‐sea exchanges can, in turn, affect the roll vortices. However, representing surface turbulent fluxes during extreme wind conditions is a major challenge in numerical weather prediction and can lead to large uncertainties in surface wind speed. The sensitivity of rolls to different representations of surface fluxes is investigated using large eddy simulations. The study focuses on Mediterranean windstorm Adrian, where rolls are responsible for the transport of strong winds to the surface. Considering the effects of sea spray increases surface heat fluxes and significantly influences the roll morphology. The rolls become narrower and extend over a greater height, while the downward transport of momentum is intensified and results in higher wind speed near the surface. Roll vortices vanish within a few minutes in the absence of momentum fluxes, which maintain the wind shear necessary for their organization. They also quickly weaken without sensible heat fluxes, which sustain the near‐neutral stratification required for their development. In contrast, latent heat fluxes play a minor role. These findings emphasize the necessity of precisely representing the processes occurring at the air‐sea interface, which do not only affect the thermodynamic surface conditions but also the vertical transport of momentum within the windstorm.
The Fate of Deep Permafrost Carbon in Northern High Latitudes in the 21st Century: A Process‐Based Modeling Analysis
Authors: Liu L. , Zhuang Q. , Zhao D. , Wei J. , Zheng D.
Published: November 2024

Warming in permafrost regions stimulates carbon (C) release through decomposition, but increasing atmospheric CO2 and available soil nitrogen enhance plant productivity at the same time. To date, a large uncertainty in the regional C dynamics still remains. Here we use a process‐based biogeochemical model by considering C exposure from thawed permafrost and observational data to quantify permafrost C emissions and ecosystem C budget in northern high latitudes in the 21st century. Permafrost degradation will make 119.3 Pg and 251.6 Pg C available for decomposition by 2100 under the Shared Socioeconomic Pathway (SSP)126 and SSP585, respectively. However, only 4–8% of the newly thawed permafrost C is expected to be released into the atmosphere by 2100. Cumulatively, permafrost degradation will reduce ecosystem C stocks by 3.37 Pg and 15.37 Pg under the SSP126 and SSP585, respectively. Additionally, CO2 fertilization effects would stimulate plant productivity and increase ecosystem C stocks substantially. The combined effects of climate change, CO2 fertilization, and permafrost degradation on C fluxes are typically more profound than any single factor, emphasizing the intricate interplay between these elements in shaping permafrost C‐climate feedbacks. Our study suggests that the majority of the thawed C will remain sequestered in previously frozen layers in this century, posing a significant challenge to climate change mitigation efforts once any process accelerates the decomposition of this huge amount of thawed C.
Contributions of Stationary and Transient Water Vapor Transports to the Extreme Precipitation Changes Over the Tibetan Plateau
Authors: Liu Shijia , Zhou Tianjun , Jiang Jie , Zou Liwei , Zhang Lixia , Zhang Wenxia , He Linqiang
Published: November 2024

The Tibetan Plateau (TP) has experienced “south drying‐north wetting” extreme precipitation changes over the past half century. The effects of water vapor transport at different timescales on TP extreme precipitation changes remain unexplored. Here, we utilize the reanalysis data sets to quantify the contributions of stationary and transient processes of water vapor transport to the long‐term changes in the extreme precipitation (R95p) during wet season (Jun‐Jul‐Aug‐Sep) over the TP and surrounding regions. We find that the daily scale transient processes dominate the dipole trend of extreme precipitation with a contribution of 55.1% in the northern and 79.5% in the southern TP, respectively, whereas the contribution of monthly scale stationary processes is of 19.0% and 20.5%. The long‐term changes in extreme precipitation are dominated by the transient dynamic component. We identified the synoptic circulation patterns affecting the changes of R95p over the northern and southern TP by using k‐means clustering. The patterns featured with a 500 hPa trough, 200 hPa wind divergence and low transient geopotential height are identified. The frequency of the dominant circulation patterns increases in the northern TP and decreases in the southern TP, which leads to the dipolar changes of extreme precipitation over the TP and surrounding regions.
Propagation Diversity of 20–40‐Day Oscillation of Summer Precipitation in the Middle and Lower Reaches of the Yangtze River
Authors: Shi Yanfei , Yao Suxiang
Published: November 2024

The summer precipitation in the middle and lower reaches of the Yangtze River (MLYR) is characterized by obvious intra‐seasonal oscillations. This study investigates the propagation diversity of the 20–40‐day summer precipitation oscillation in MLYR and its underlying mechanism. The 20–40‐day oscillation events manifest as three types: northward propagation, southward propagation, and local oscillation. For northward and southward events, the propagation of precipitation is accompanied by the movement of 20–40‐day low‐frequency cyclonic vortices in the lower troposphere. Further investigation into the mechanism of anomalous vorticity propagation accompanying low‐frequency vortices reveals that positive relative vorticity advection in the north of the vortex facilitates its northward propagation. Moreover, the positive advection is primarily reliant on the background southerly winds to transport the low‐frequency vorticity. Diabatic heating dominates the southward propagation of low‐frequency precipitation. The center of the latent heating is located in the south of the low‐frequency vortex, which steers its southward migration. Furthermore, the uneven spatial distribution of latent heating across the vortex may be attributed to the non‐uniform distribution of mean humidity. Based on the above results, sensitivity experiments are conducted using a regional climate model (RegCM4.6). The results demonstrate that when the southerly winds are increased (decreased) or the specific humidity gradient is decreased (increased), the southward (northward) events weaken and disappear, or transitioned into local oscillations or northward (southward) events. This further validates the physical processes through which the basic flow and humidity inhomogeneities affect the meridional propagation of the 20–40‐day oscillations of precipitation.
Balloon Baseline Stratospheric Aerosol Profiles (B2SAP)—Perturbations in the Southern Hemisphere, 2019–2022
Authors: Asher Elizabeth , Baron Alexandre , Yu Pengfei , Todt Michael , Smale Penny , Liley Ben , Querel Richard , Sakai Tetsu , Morino Isamu , Jin Yoshitaka , Nagai Tomohiro , Uchino Osamu , Hall Emrys , Cullis Patrick , Johnson Bryan , Thornberry Troy D.
Published: November 2024

Volcanic and pyrocumulonimbus (pyroCB) injections into the stratosphere perturb the aerosol layer and can have important radiative and chemical impacts on timescales spanning from months to several years. Repeated in situ balloon‐borne measurements of aerosol size and number concentration (>140 nm in diameter), ozone, water vapor, and atmospheric state variables made at midlatitudes in the southern hemisphere (SH) since 2019 enable us to better characterize such events. We use this record and coincident lidar extinction profiles to study several moderate to large stratospheric perturbations in the SH between 2019 and 2022 in detail, including the Australian New Year Super Outbreak (ANYSO) pyroCB in 2020. Median vertical profiles of aerosol number concentration, effective radius, and surface area in SH midlatitudes are also compared with those recorded in Northern Hemisphere midlatitudes under baseline conditions using an identical payload. These data depict the variability in stratospheric aerosol properties in the SH midlatitudes during this period and provide a benchmark for global sectional aerosol models. They reveal that sulfate particle size distributions under baseline conditions and in volcanic plumes are relatively well represented in the Community Earth System Model—Community Aerosol Radiation Model for Atmospheres (CESM‐CARMA), but more observations of biomass burning plumes are needed to improve model skill in simulating pyroCB. Comparisons between in situ and lidar observations also highlight a need for more observations of aerosol composition and refractive index in both fresh and aging biomass burning plumes.
Amplified Secondary Organic Aerosol Formation Induced by Anthropogenic–Biogenic Interactions in Forests Around Megacities
Authors: Ma Fangyuan , Wang Hao , Ding Yaozhou , Zhang Shenyang , Wu Gengchen , Li Yanlei , Gong Daocheng , Ristovski Zoran , He Congrong , Wang Boguang
Published: November 2024

The amplification effect of anthropogenic‐biogenic interactions on secondary organic aerosol (SOA) formation remains debated, particularly regarding the impact of anthropogenic emissions on biogenic SOA (BSOA) formation in forests near megacities. This study concurrently measured typical biogenic and anthropogenic SOA tracers during day and night at the summit (1,690 m a.s.l.) and foot (200 m a.s.l.) of the Nanling mountains, a large subtropical forest adjacent to the Pearl River Delta (PRD) in southern China. Results revealed unexpectedly high concentrations of BSOA tracers (149.9 ± 70.5 ng m−3 at the summit and 109.7 ± 51.2 ng m−3 at the foot), surpassing those at most other background sites worldwide. Daytime BSOA tracer levels at the foot were consistent with nighttime levels, whereas the summit showed significantly higher concentrations at night. Nighttime correlations between O₃ and BSOA tracers at the summit suggest that high O₃ levels stimulate BSOA formation. Conversely, a negative correlation between O₃ and isoprene derived SOA (SOAI) tracers at the foot indicates that other oxidants may also influence SOAI formation. BSOA tracer concentrations rose significantly with the arrival of anthropogenic pollutants (e.g., SO₂ and NO₂), indicating that anthropogenic pollution amplifies BSOA formation by enhancing aerosol acidity (pH < 3). This amplification effect could be mitigated by the reduction of aerosol acidity due to increased NH₃ and relative humidity (RH). Our findings provide valuable insights into the interactions between anthropogenic and biogenic emissions on SOA formation and vertical distribution in forests surrounding megacities.