bluuebunny/crossref_metadata_2025_split huggingface dataset:
Elevated Allochthony in Stream Food Webs as a Result of Longitudinal Cumulative Effects of Forest Management
Authors: Erdozain Maitane , Kidd Karen A. , Emilson Erik J. S. , Capell Scott S. , Kreutzweiser David P. , Gray Michelle A. 
Published: October 2021

AbstractThe river continuum concept (RCC) predicts a downstream shift in the reliance of aquatic consumers from terrestrial to aquatic carbon sources, but this concept has rarely been assessed with longitudinal studies. Similarly, there are no studies addressing how forestry related disturbances to the structure of headwater food webs manifest (accumulate/dissipate) downstream and/or whether forest management alters natural longitudinal trends predicted by the RCC. Using stable isotopes of carbon, nitrogen and hydrogen, we investigated how: 1) autochthony in macroinvertebrates and fish change from small streams to larger downstream sites within a basin with minimal forest management (New Brunswick, Canada); 2) longitudinal trends in autochthony and food web length compare among three basins with different forest management intensity [intensive (harvest and replanting), extensive (harvest only), minimal] to detect potential cumulative/dissipative effects; and 3) forest management intensity and other catchment variables are influencing food web dynamics. We showed that, as predicted, the reliance of some macroinvertebrate taxa (especially collector feeders) on algae increased from small streams to downstream waters in the minimally managed basin, but that autochthony in the smallest shaded stream was higher than expected based on the RCC (as high as 90% for some taxa). However, this longitudinal increase in autochthony was not observed within the extensively managed basin and was weaker within the intensively managed one, suggesting that forest management can alter food web dynamics along the river continuum. The dampening of downstream autochthony indicates that the increased allochthony observed in small streams in response to forest harvesting cumulates downstream through the river continuum.
Temperature-induced response in algal cell surface properties and behaviour: an experimental approach
Authors: Novosel N. , Mišić Radić T. , Zemla J. , Lekka M. , Čačković A. , Kasum D. , Legović T. , Žutinić P. , Gligora Udovič M. , Ivošević DeNardis N. 
Published: October 2021

AbstractMicroalgae are considered an accurate indicator of ecosystem perturbations induced by global climate change. The present work aims to investigate the alteration of temperature on surface properties and behaviour of three algal species using the complementary surface methods (electrochemical and atomic force microscopy). The results showed that the temperature-induced response of algae is species-specific due to the structural features of the cell envelope. Wall-less algae experience the largest nanomechanical and chemical change, while algae with silicified walls show the pronounced chemical change in the degree of hydrophobicity. Alterations of surface properties suggest a molecular modification of the algal barrier and cytoskeletal rearrangements due to a change in cell size, while algal morphology reveals no change. The physiological activity of cells showed a different organisation of released extracellular substances in the form of fine fibrillar structures, aggregated particles, and dense networks. Both types of algal responses, physiological activity, and molecular modification of the cell barrier determine the cell adhesion and motility. This study highlights the role of surface properties in cell-substrate and cell–cell interactions, which is important for the understanding of algal behaviour at natural interfaces and the mechanism of algal biofilm and aggregate formation in aquatic systems under the stress.
Graphical abstract
A community effort to assess and improve computerized interpretation of 12-lead resting electrocardiogram
Authors: Ding Zijian , Wang Guijin , Yang Huazhong , Zhang Ping , Fu Dapeng , Yang Zhen , Wang Xinkang , Wang Xia , Xia Zhourui , Zhang Chiming , Cai Wenjie , Yuan Binhang , Jia Dongya , Chen Bo , Huang Chengbin , Zhang Jing , Li Yi , Yang Shan , He Runnan 
Published: October 2021

AbstractComputerized interpretation of electrocardiogram plays an important role in daily cardiovascular healthcare. However, inaccurate interpretations lead to misdiagnoses and delay proper treatments. In this work, we built a high-quality Chinese 12-lead resting electrocardiogram dataset with 15,357 records, and called for a community effort to improve the performances of CIE through the China ECG AI Contest 2019. This dataset covers most types of ECG interpretations, including the normal type, 8 common abnormal types, and the other type which includes both uncommon abnormal and noise signals. Based on the Contest, we systematically assessed and analyzed a set of top-performing methods, most of which are deep neural networks, with both their commonalities and characteristics. This study establishes the benchmarks for computerized interpretation of 12-lead resting electrocardiogram and provides insights for the development of new methods.
Beyond practitioner and researcher: 15 roles adopted by actors in transdisciplinary and transformative research processes
Authors: Hilger Annaliesa , Rose Michael , Keil Andreas 
Published: October 2021

AbstractTo tackle complex sustainability problems, science and practice must join forces and interact in the processes of knowledge co-production. This central claim of sustainability science requires all actors to do more than simply participate in a workshop or carry out traditional research. It is essential to provide clarity to actors about the roles to adopt in these processes, especially in terms of planning collaborations—with whom, when, and how. Therefore, in this paper we identify, describe, and discuss 15 roles for actors involved in such processes. We undertook a systematic literature review to identify papers with precise descriptions of transdisciplinary (td) and transformative (tf) research processes. We focused on the common occurrence of activities undertaken by actors by applying 72 activity codes a total of 549 times. Subclusters of activities were identified by means of a hierarchical cluster analysis and these were condensed into 15 roles. The roles can be categorised in four activity realms: field, academia, boundary management, and knowledge co-production. The roles of the Data Supplier, the Field Expert, and the Application Expert are adopted by actors who originate from the field, whereas the roles of the Scientific Analyst and the Knowledge Collector are primarily adopted by researchers. Furthermore, we identified 10 roles within the activity realms of the knowledge co-production process and boundary management. The high number and diversity of roles, especially in the realm of boundary management, reveals the importance of a comprehensive approach to coordination, communication, and process design.
Responses to corporate governance code: evidence from a longitudinal study
Authors: Aluchna Maria , Kuszewski Tomasz 
Published: October 2021

AbstractDrawing upon neo-institutional theory as the perspective for research on corporate governance, we present the results of empirical studies on compliance with best practice codes. We view the declarations of conformity as the organizational response to institutional pressure and address questions on (1) how companies respond to recommendations on board best practice and (2) how these reactions evolve over time. The study employs the mixed method approach and is based on a time-series sample of conformity declarations published by 126 companies listed on the Warsaw Stock Exchange during the period 2006–2019. Descriptive statistics indicate an increase in the number of complying companies, an improvement in compliance quality and the growing length of conformity declarations. In the content analysis we identify two main reaction strategies (acceptance and rejection) with seven selected responses. We discuss the contribution to the existing literature on reactions to new practices in corporate governance.
Conceptual design and virtual prototyping of a wearable upper limb exoskeleton for assisted operations
Authors: Bilancia Pietro , Berselli Giovanni 
Published: October 2021

AbstractThis paper introduces a novel upper limb robotic exoskeleton designed to assist industrial operators in a wide range of manual repetitive tasks, such as tool handling and lifting/moving of heavy items. Due to its reduced size and high maneuverability, the proposed portable device may also be employed for rehabilitation purposes (e.g. as an aid for people with permanent neuromuscular diseases or post-stroke patients). Its primary function is to compensate the gravity loads acting on the human shoulder by means of a hybrid system consisting of four electric motors and three passive springs. The paper focuses on the exoskeleton mechanical design and virtual prototyping. After a preliminary review of the existent architectures and procedures aimed at defining the exoskeleton functional requirements, a detailed behavioral analysis is conducted using analytical and numerical approaches. The developed interactive model allows to simulate both kinematics and statics of the exoskeleton for every possible movement within the design workspace. To validate the model, the results have been compared with the ones achieved with a commercial multibody software for three different operator’s movements.
A Path Towards a Possible Future – Adult Students’ Choice of Vocational Education
Authors: Karlsson Tobias , Muhrman Karolina , Nyström Sofia 
Published: October 2021

AbstractToday’s society is characterized by high unemployment, a prevailing trust in and demands for an academic degree, and an emphasis on the individual’s own responsibility for their educational choices. This study aims to examine adults’ vocational education choices, their intentions in connection with municipal adult education (MAE) studies, and how this relates to identity formation. The study is based on 18 interviews and compares students from two vocational MAE training programmes in assistant nursing and floor laying. The analysis has identified different pathways concerning adult students’ decisions to enrol in municipal adult education and a specific vocational education and training (VET) programme. We see educational choices and paths in terms of underlying causes or as forward-looking rationalities. The results show that the process of identity formation is larger than simply one of vocational becoming within a vocational community of practice, since MAE studies involve a student’s whole being, including both their personal identity trajectories and their vocational identity formation. With this article we hope to provide a foundation for a pedagogical discussion about student intentions, focusing on how different subjectivities affect students with regard to their future vocational becoming.
Montmorillonite-Hydrochar Nanocomposites as Examples of Clay–Organic Interactions Delivering Ecosystem Services
Authors: Yuan Guodong , Wei Jing , Theng Benny K. G. 
Published: October 2021

AbstractClay–organic interaction is an important natural process that underpins soil ecosystem services. This process can also be tailored to produce clay–organic nanocomposites for industrial and environmental applications. The organic moiety of the nanocomposites, typically represented by a toxic surfactant, could be replaced by hydrochar formed from biomolecules (e.g. glucose) via hydrothermal carbonization. The effect of montmorillonite (Mnt) and glucose dosage on hydrochar formation, however, has not been clarified. In addition, the mechanisms by which Mnt-hydrochar nanocomposites (CMnt) can detoxify and remove carcinogenic Cr(VI) from aqueous solution are not well understood. In the current study, research milestones in terms of clay–organic interactions are summarized, following which the synthesis and characterization of CMnt for Cr(VI) adsorption are outlined. Briefly, 1 g of Mnt was reacted with 75 mL of glucose solution (0.1, 0.2, 0.3, 0.4, 0.5, and 0.6 mol L−1) by hydrothermal carbonization at 200°C for 16 h. The resultant CMnt samples were analyzed for chemical composition, functional groups, morphological features, and Cr(VI) adsorptive properties. Mnt promoted the conversion of glucose to hydrochars, the particle size of which (~80 nm) was appreciably smaller than that formed in the absence of Mnt (control). Furthermore, the hydrochars in CMnt had an aromatic structure with low hydrogen substitution and high stability (C/H atomic ratio 0.34–0.99). The weakened OH (from hydrochar) and Si–O–Si stretching peaks in the Fourier-transform infrared (FTIR) spectra of CMnt are indicative of chemical bonding between Mnt and hydrochar. The CMnt samples were effective at removing toxic Cr(VI) from acidic aqueous solutions. Several processes were involved, including direct reduction of Cr(VI) to Cr(III), complexation of Cr(III) with carboxyl and phenolic groups of hydrochar, electrostatic attraction between Cr(VI) and positively charged CMnt at pH 2 followed by indirect reduction of Cr(VI) to Cr(III), and Cr(III) precipitation.
Development of a DDH Care Pathway for India: A Study Methodology to Guide Similar Efforts in Other Countries and for Other Conditions
Authors: Li Jacqueline , Aroojis Alaric , Mulpuri Kishore , Shea Kevin G. , Schaeffer Emily K. 
Published: October 2021

Abstract
Purpose
In India and other Global South countries, developmental dysplasia of the hip (DDH) is often diagnosed after walking age, leading to more invasive surgeries and long-term disability. DDH care pathways aim to enhance early detection and must be tailored to meet a country’s needs and diverse practice settings. We describe a multi-phase methodology for context-specific DDH care pathway development, demonstrating its use in India.

Methods
In Phase I, Orthopaedic surgeons, Pediatricians/Neonatologists, and Radiologists in India were surveyed regarding DDH screening. Seven relevant Indian organizations partnered together and assembled a multidisciplinary working group, which then met fortnightly to establish an evidence base and prepare for the subsequent consensus-building phase. During Phase II, panelists participated in a modified Delphi process to reach consensus on a list of DDH screening statements. Phase III applied the statements to develop the care pathway.

Results
The Delphi process concluded after a preliminary survey and two Delphi rounds, reaching consensus on 47 statements, which were condensed into 35. The developed care pathway for India features periodic clinical hip examinations integrated with the country’s immunization schedule and selective imaging screening, providing flexibility in the timing and modality of imaging.

Discussion/Conclusion
In Global South countries, there is a need for DDH care pathways specific to local contexts. Successful care pathway development requires accounting for cultural differences in healthcare and strategies to facilitate engagement and to address country-specific barriers. This methodology was feasible in India and can be applied to other conditions and/or countries wishing to establish care pathways.

Level of Evidence
Level III.
Risk of hospital insolvency and its relationship with income and borrowings from banks: a case–control study with large-scale financial data in Japan
Authors: Tsuboi Satoshi , Mine Tomosa , Fukushima Tetsuhito 
Published: October 2021

AbstractConsidering the variety of stakeholders surrounding hospitals, hospital financial distress should be understood as a social issue, rather than just a matter involving the hospital owners. The present study aimed to assess Japanese hospital insolvency and related factors based on a nationwide financial dataset, and to identify indicators of the risk of insolvency. The legal financial reports used included a balance sheet and a profit-and-loss statement of hospitals owned by healthcare corporations, representing about 70% of all Japanese hospitals. This case–control study with descriptive analyses was conducted to clarify the financial status of healthcare corporations and to assess associations between specific factors and insolvency. Insolvency was found in 5.9% of healthcare corporations in 2016. Insolvency was significantly associated with operational income per sales (odds ratio, 0.16), and both short- and long-term borrowings per sales (odds ratios: 1.46 and 1.22 in this order). The present study found that 5.9% of Japanese healthcare corporations were insolvent, and hospital profitability and borrowing (both short- and long-term) could be key factors related to preventing hospital insolvency in Japan. To maintain sustainable healthcare services by hospitals, decision makers should consider the risk of insolvency, and balance the amount of borrowings against sales.
Foraminifera Iodine to Calcium Ratios: Approach and Cleaning
Authors: Winkelbauer Helge , Cordova‐Rodriguez Kathy , Reyes‐Macaya Dharma , Scott Jennifer , Glock Nicolaas , Lu Zunli , Hamilton Elliott , Chenery Simon , Holdship Phil , Dormon Charlotte , Hoogakker Babette 
Published: October 2021

AbstractPlanktic and benthic foraminiferal iodine (I) to calcium (Ca) molar ratios have been proposed as an exciting new proxy to assess subsurface and bottom water oxygenation in the past. Compared to trace metals, the analysis of iodine in foraminiferal calcite is more challenging, as iodine is volatile in acid solution. Here, we compare previous analyses that use tertiary amine with alternative analyses using tetramethylammonium hydroxide (TMAH) and ammonium hydroxide (NH4OH) to stabilize iodine in solution. In addition, we assess the effect of sample size and cleaning on planktic and benthic foraminiferal I/Ca. Our stabilization experiments with TMAH and NH4OH show similar trends as those using tertiary amine, giving relatively low I/Ca ratios for planktic and benthic foraminifera samples from poorly oxygenated waters, and high ratios for well‐oxygenated waters. This suggests that both alternative methods are suitable to stabilize iodine initially dissolved in acid. Samples that contain 5–10 specimens show a wide spread in I/Ca. Samples containing 20 specimens or more show more centered I/Ca values, indicating that a larger sample size is more representative of the average planktic foraminifera community. The impact of cleaning on planktic and benthic foraminifera I/Ca ratios is very similar to Mg/Ca, with the largest effect occurring during the clay removal step. The largest iodine contaminations were recorded at locations characterized by moderate to high organic carbon contents. In those circumstances, we recommend doubling the oxidative cleaning steps (4 instead of 2 repetitions) to ensure that all organic material is removed.
Estimating Intra‐Urban Inequities in PM2.5‐Attributable Health Impacts: A Case Study for Washington, DC
Authors: Castillo Maria D. , Kinney Patrick L. , Southerland Veronica , Arno C. Anneta , Crawford Kelly , van Donkelaar Aaron , Hammer Melanie , Martin Randall V. , Anenberg Susan C. 
Published: October 2021

AbstractAir pollution levels are uneven within cities, contributing to persistent health disparities between neighborhoods and population sub‐groups. Highly spatially resolved information on pollution levels and disease rates is necessary to characterize inequities in air pollution exposure and related health risks. We leverage recent advances in deriving surface pollution levels from satellite remote sensing and granular data in disease rates for one city, Washington, DC, to assess intra‐urban heterogeneity in fine particulate matter (PM2.5)‐ attributable mortality and morbidity. We estimate PM2.5‐attributable cases of all‐cause mortality, chronic obstructive pulmonary disease, ischemic heart disease, lung cancer, stroke, and asthma emergency department (ED) visits using epidemiologically derived health impact functions. Data inputs include satellite‐derived annual mean surface PM2.5 concentrations; age‐resolved population estimates; and statistical neighborhood‐, zip code‐ and ward‐scale disease counts. We find that PM2.5 concentrations and associated health burdens have decreased in DC between 2000 and 2018, from approximately 240 to 120 cause‐specific deaths and from 40 to 30 asthma ED visits per year (between 2014 and 2018). However, remaining PM2.5‐attributable health risks are unevenly and inequitably distributed across the District. Higher PM2.5‐attributable disease burdens were found in neighborhoods with larger proportions of people of color, lower household income, and lower educational attainment. Our study adds to the growing body of literature documenting the inequity in air pollution exposure levels and pollution health risks between population sub‐groups, and highlights the need for both high‐resolution disease rates and concentration estimates for understanding intra‐urban disparities in air pollution‐related health risks.
Assessment of Turbulence Intensity in Different Spots of Lightning Flash Propagation
Authors: Souza Jessica C. S. , Bruning Eric C. 
Published: October 2021

AbstractThe updraft speed is correlated to the total lightning flashes a storm produces. Shear along updraft gradients is one of the mechanisms responsible for the production of turbulence kinetic energy (TKE). Thus, the radar‐estimated eddy dissipation rate (EDR) overlapped with Lightning Mapping Array (LMA) data is used to evaluate the storm's kinematic and electrical relationship. The majority of the sampled flashes shows higher turbulence intensities close to lightning initiation regions. As the distance from initiation increases along the lightning propagation path, there is a gradient to less turbulent regions. We identified small‐sized and medium‐sized flashes initiated at lower altitudes in regions of smaller EDR values consistent with the unmixed flow within inner part of updrafts. Furthermore, there were a concentration of small flashes initiated in the upper portion of the cloud in high EDR values due to their associated small‐scale variability.
Characterizing the Seasonal Variability of Hypolimnetic Mixing in a Large, Deep Lake
Authors: Cannon David James , Troy Cary , Bootsma Harvey , Liao Qian , MacLellan‐Hurd Rae‐Ann 
Published: October 2021

AbstractIn this study, we report on turbulent mixing observed during the annual stratification cycle in the hypolimnetic waters of Lake Michigan (USA), highlighting stratified, convective, and transitional mixing periods. Measurements were collected using a combination of moored instruments and microstructure profiles. Observations during the stratified summer showed a shallow, wind‐driven surface mixed layer (SML) with locally elevated dissipation rates in the thermocline () potentially associated with internal wave shear. Below the thermocline, turbulence was weak () and buoyancy‐suppressed ( < 8.5), with low hypolimnetic mixing rates () limiting benthic particle delivery. During the convective winter period, a diurnal cycle of radiative convection was observed over each day of measurement, where temperature overturns were directly correlated with elevated turbulence levels throughout the water column (; ). A transitional mixing period was observed for spring conditions when surface temperatures were near the temperature of maximum density (TMD3.98) and the water column began to stably stratify. While small temperature gradients allowed strong mixing over the transitional period (), hypolimnetic velocity shear was overwhelmed by weakly stable stratification (; ), limiting the development of the SML. These results highlight the importance of radiative convection for breaking down weak hypolimnetic stratification and driving energetic, full water column mixing during a substantial portion of the year (>100 days at our sample site). Ongoing surface water warming in the Laurentian Great Lakes is significantly reducing the annual impact of convective mixing, with important consequences for nutrient cycling, primary production, and benthic‐pelagic coupling.