bluuebunny/crossref_metadata_2025_split huggingface dataset:
Acid coating to increase availability of zinc in phosphate fertilizers
Authors: Degryse Fien , Harris Hugh , Baird Roslyn , Andelkovic Ivan , da Silva Rodrigo C. , Kabiri Shervin , Yazici Atilla , Cakmak Ismail , McLaughlin Mike J. 
Published: October 2023

Abstract
Background
Precipitation of Zn phosphates may limit Zn availability in cogranulated P fertilizers. We assessed whether the Zn availability of Zn could be improved by post-granulation acid treatment.

Methods
Uncoated Zn-fortified monoammonium phosphate granules were compared with sulfuric acid-coated granules in which Zn was either cogranulated or dissolved in the acid coating. Spatially resolved XRF and XANES was used to assess the distribution and speciation of Zn in the granules (before and after incubation in soil) and in the exposed soil. The amount of Zn remaining in the granule was determined after incubation in various soils. The effect of acid coating rate on corn yield was determined in a highly Zn-deficient soil in a pot trial.

Results
The speciation of Zn in the untreated granules was dominated by Zn phosphates. In the sulfuric acid treatments, sulfate species accounted for ~ 45% (if cogranulated) or ~ 80% (if coated) of the Zn. After one week incubation in soil, 10–86% of the added Zn remained in the residual granule, mostly as sparingly soluble compounds. The Zn speciation in the soil near the granule was dominated by Zn phosphates irrespective of treatment, but Zn moved further away from the application site in the acid treatments, as more Zn was released from the granule. In the pot trial, the dry matter yield increased by 70% at a coating rate of 0.75% H2SO4 compared to the uncoated control.

Conclusions
Post-granulation acid treatment of Zn-fortified P fertilizers is an effective way to enhance the phytoavailability of fertilizer Zn.
Teacher expectations and their relations with primary school students’ achievement, self-concept, and anxiety in mathematics
Authors: Hollenstein Lena , Rubie-Davies Christine M. , Brühwiler Christian 
Published: October 2023

AbstractTeacher expectations not only relate positively to student achievement, but also to student beliefs such as their self-concept. Nevertheless, most studies focus on the relations with student achievement, followed by studies on beliefs. Beliefs are a significant determinant of academic success and can include student self-concept or emotions, such as anxiety. The extent to which anxiety can be influenced by teacher expectations has been investigated in very few studies. This paper examined how teacher expectations related to changes in student achievement, self-concept, and anxiety in mathematics within a school year. The data were from a longitudinal study “Outcomes of teacher education”, funded by the Swiss National Science Foundation and based on 28 teachers and 509 primary school students. Teacher expectations were operationalized using the residual approach. Student mathematics achievement was assessed via a standardized mathematics test and their self-concept as well as their mathematics anxiety via a questionnaire. The multi-level structure was considered in the analyses, because the interclass-correlation of student mathematics achievement exceeded the critical value of 10%. The results showed that teacher expectations were positively related to student achievement as well as self-concept and negatively related to anxiety towards mathematics. The change in the explained variance was small (self-concept and anxiety) to large (achievement). The results extend findings on the expectation effect in the classroom, as they focus not only on student achievement but also on student beliefs and are discussed regarding their significance for academic success.
Evaluating the potential of semi-continuous itaconic acid fermentation by Aspergillus terreus: operational profile and experiences
Authors: Hülber-Beyer Éva , Bélafi-Bakó Katalin , Rózsenberszki Tamás , Komáromy Péter , Nemestóthy Nándor 
Published: October 2023

AbstractItaconic acid is an important bio-based chemical. The present study aims to evaluate the applicability of semi-continuous fermentation technique for itaconic acid production by Aspergillus terreus. The fermentation is planned to be connected with bipolar membrane electrodialysis unit for acid recovery. This process allows the reuse of residual glucose from the effluent. Our particular attention was focused on the effect of glucose concentration. Two different glucose supplementation strategies were tested: constant glucose concentration in the refilling medium and adjusted glucose concentration in order to maintain a continuously high – 120 g/L – glucose concentration in the fermentor. The itaconic acid titre, yield and productivity for the 24 h time periods between draining/refilling interventions were investigated. The constantly high glucose concentration in the fermentor resulted in doubled biomass formation. The average itaconic acid titre was 32.9 ± 2.7 g/L. The producing strain formed numerous spores during semi-continuous fermentation that germinated continuously. Yield and volumetric productivity showed a periodic pattern during the procedure.
Aus welchen Gründen wagen Hochschulabsolventinnen seltener den Schritt in die Selbstständigkeit als Hochschulabsolventen?
Authors: Köpke Ulrike , Schmitt-Rodermund Eva 
Published: October 2023

ZusammenfassungWarum wagen Frauen seltener den Schritt in die Selbstständigkeit als Männer? Die vorliegende Untersuchung fokussiert auf die Umsetzung einer Selbstständigkeit durch Hochschulabsolventinnen und -absolventen und untersucht, welche Faktoren mit der Geschlechterlücke einhergehen. Die Auswahl der Prädiktoren basiert auf dem theoretischen Modell von Eccles et al. (1983), welches in der Tradition eines „Erwartung × Wert-Modells“ unter Einbeziehung sozialer, psychologischer, demografischer und ökonomischer Einflüsse die berufliche Wahlentscheidung beleuchtet. Sowohl über die Zeit hinweg stabile Merkmale, wie die Selbstständigkeit der Eltern, der fachspezifische Studienabschluss und das Big Five-Persönlichkeitsprofil, als auch dynamische und durch Lebensumstände beeinflusste Faktoren, wie Arbeits- und Lebensziele, wurden untersucht. Die Datengrundlage bildete die zweite Welle des DZHW (Deutsches Zentrum für Hochschul- und Wissenschaftsforschung) Absolventenpanel 2009 (N = 2465). Um den Einfluss der Prädiktoren auf die Geschlechterdifferenzen zu analysieren, wurden logistische Regressionsmodelle berechnet, die zum einen den Einfluss insgesamt und zum anderen den geschlechterseparierten Einfluss auf die Wahrscheinlichkeit der Umsetzung einer Selbstständigkeit untersuchen. Die Ergebnisse belegen, dass Frauen nach wie vor seltener beruflich selbstständig sind als Männer. Geschlechtsspezifische Auswertungen zeigen weiterhin, dass bei Absolventinnen vor allem Arbeits- und Lebensziele und bei Männern die Vorbildrolle der Eltern dazu führt, unternehmerisch tätig zu sein. Absolventinnen, denen ein sicherer Arbeitsplatz eher unwichtig und eine Vereinbarkeit von Beruf und Familie weder besonders wichtig noch besonders unwichtig ist, zeigen eine höhere Wahrscheinlichkeit, selbstständig tätig zu sein, während diese Arbeits- und Lebensziele für Absolventen weniger entscheidend sind. Die Ergebnisse zeigen aber auch, dass Absolventinnen und Absolventen hinsichtlich ihres unternehmerischen Persönlichkeitsprofils gleichermaßen gut für eine berufliche Selbstständigkeit ausgestattet sind. Das Papier schließt mit Überlegungen, wie die berufliche Selbstständigkeit insbesondere bei Hochschulabsolventinnen gefördert werden kann.
Is poor air quality in day-care centres’ affecting our children’s health? A study of indoor air quality in childcare facilities located in Perth, Western Australia
Authors: Gilbey Suzanne E. , Zhao Yun , Lee Andy , Rumchev Krassi B. 
Published: October 2023

AbstractPoor indoor air quality (IAQ) can adversely affect children’s health; however, limited studies have quantified indoor air pollutants in day-care centres (DCCs) where infants and young children are increasingly spending more time from a younger age. The aim of this study was to investigate seasonal IAQ in Western Australian childcare facilities at both heavy traffic and low traffic locations. In 22 centres, total volatile organic compounds, formaldehyde, nitrogen dioxide, carbon dioxide, and carbon monoxide, particulate matter (PM) measured in six size fractions (total PM, PM10, PM4, PM2.5, PM1, ultrafine particles), and meteorological parameters (temperature and relative humidity), were continuously sampled over a 24-h period, in the cold season and repeated in the warm season. All contaminants (other than formaldehyde) in the summer and/or winter collections, or averaged over both seasons, were found to be above contemporary air quality standards, guidelines, best practice statements, or other available guidelines developed to protect human health. Furthermore, all contaminants were present at higher concentrations indoors where a DCC was located within 100 m of a heavy traffic roadway. The findings of this study suggest that children who attend these facilities on a regular basis may be chronically exposed to a range of health damaging contaminants during critical stages of their development. The findings support the need for measures to reduce concentrations of air pollutants in DCCs. Preventative actions such as attention to DCC siting, selection of appropriate building materials and furnishings, improvement in ventilation, and usage of ‘green’ cleaning products should be considered to reduce children’s exposures to harmful airborne contaminants.
Human Cerebrospinal Fluid Sample Preparation and Annotation for Integrated Lipidomics and Metabolomics Profiling Studies
Authors: Hooshmand Kourosh , Xu Jin , Simonsen Anja Hviid , Wretlind Asger , de Zawadzki Andressa , Sulek Karolina , Hasselbalch Steen Gregers , Legido-Quigley Cristina 
Published: October 2023

AbstractCerebrospinal fluid (CSF) is a metabolically diverse biofluid and a key specimen for exploring biochemical changes in neurodegenerative diseases. Detecting lipid species in CSF using mass spectrometry (MS)-based techniques remains challenging because lipids are highly complex in structure, and their concentrations span over a broad dynamic range. This work aimed to develop a robust lipidomics and metabolomics method based on commonly used two-phase extraction systems from human CSF samples. Prioritizing lipid detection, biphasic extraction methods, Folch, Bligh and Dyer (B&D), Matyash, and acidified Folch and B&D (aFolch and aB&D) were compared using 150 μL of human CSF samples for the simultaneous extraction of lipids and metabolites with a wide range of polarity. Multiple chromatographical separation approaches, including reversed-phase liquid chromatography (RPLC), hydrophilic interaction liquid chromatography (HILIC), and gas chromatography (GC), were utilized to characterize human CSF metabolome. The aB&D method was found as the most reproducible technique (RSD < 15%) for lipid extraction. The aB&D and B&D yielded the highest peak intensities for targeted lipid internal standards and displayed superior extracting power for major endogenous lipid classes. A total of 674 unique metabolites with a wide polarity range were annotated in CSF using, combining RPLC-MS/MS lipidomics (n = 219), HILIC-MS/MS (n = 304), and GC-quadrupole time of flight (QTOF) MS (n = 151). Overall, our findings show that the aB&D extraction method provided suitable lipid coverage, reproducibility, and extraction efficiency for global lipidomics profiling of human CSF samples. In combination with RPLC-MS/MS lipidomics, complementary screening approaches enabled a comprehensive metabolite signature that can be employed in an array of clinical studies.
Graphical abstract
Seismic interpretation and sequence stratigraphic analysis of the Bahariya Formation in the South Umbaraka oilfields (Western Desert, Egypt): insights into reservoir distribution, architecture, and evaluation
Authors: Shehata Amer A. , Abdel-Fattah Mohamed I. , Hamdan Hamdan A. , Sarhan Mohammad A. 
Published: October 2023

AbstractThe integration of multiscale datasets, including seismic, well-logs and stratigraphy, is providing a precise picture about reservoir evaluation and spatial distribution. This study focuses on the seismic interpretation and sequence stratigraphic analysis of the Bahariya Formation in the South Umbaraka oilfields (Selkit, Khepri, and Sethos), located in the Western Desert of Egypt. Seismic interpretations reveal various structural closures, including anticlinal domes and faulted anticlines in different fields. The study area is divided into northern and southern blocks separated by a major fault, and structural cross sections provide valuable information on reservoir zones regarding lateral extension, thickness variation, and fault distribution. The Bahariya Formation is subdivided into two depositional sequences: Lower Bahariya sequence (BAH.SQ-1) and Upper Bahariya sequence (BAH.SQ-2) with distinct wireline-log characteristics, seismic reflections, and lithofacies variations. BAH.SQ-1 comprises mixed siliciclastic-dominated units with some carbonate units, while BAH.SQ-2 consists of mixed siliciclastic and carbonate units. Multiple sequence boundaries, depositional surfaces, and systems tracts are identified within BAH.SQ-1 and BAH.SQ-2, indicating changes in sedimentary environments and sea-level fluctuations. The petrophysical evaluation reveals promising reservoir zones in both the Lower and Upper Bahariya sequences. However, the Lower Bahariya sequence exhibits superior reservoir characteristics in terms of net-pay thickness, shale volume, effective porosity, and water saturation. Particularly, the sandstone-dominated LST-1 within the Lower Bahariya Formation is identified as a favorable reservoir zone. Conversely, the Upper Bahariya Formation has limited reservoir potential. This study underscores the significance of sequence stratigraphy and reservoir architecture, emphasizing the role of faulting, folding, and depositional environments in the distribution and quality of reservoir zones. The findings contribute valuable insights into the structural and stratigraphic characteristics of the Bahariya Formation, enhancing understanding of hydrocarbon plays and reservoir distribution in the studied area.
Relative strength and foreign direct investment in civil conflicts
Authors: Adelaiye Samaila Oluwatope , Chen Si , Sarwari Mehwish 
Published: October 2023

AbstractWhat factors contribute to the differences in foreign direct investment (FDI) levels in environments characterized as high risk? While research shows that armed conflict influences foreign investment decisions, it remains unclear how conflict dynamics, specifically the relative power capabilities of warring parties, affect FDI. This study explores the effects of rebel strength relative to government forces on FDI. We argue that there is a reduction in foreign investments in civil conflict countries as rebels gain a military advantage relative to the government. Stronger insurgents send a signal that the government is losing its strength in the conflict, creating uncertainty regarding conflict outcomes and posing economic and security risks for investors. To avoid facing economic and property losses due to increasing rebel strength, investors are incentivized to decrease their investment in the conflict state. Using data on insurgent troop size relative to government forces and FDI, our findings show that higher military capabilities of rebel forces relative to the government are associated with less FDI inflows in conflict-affected countries.
Seven Recommendations for Pricing Greenhouse Gas Emissions
Authors: Fraas Arthur G. , Graham John D. , Krutilla Kerry M. , Lutter Randall , Shogren Jason F. , Thunström Linda , Viscusi W. Kip 
Published: October 2023

AbstractThe social cost of greenhouse gases is important in many regulatory impact analyses. However, calculations of the social cost of greenhouse gases are highly complex and periodically revisited. We offer seven recommendations to improve current estimates. These include recommendations to use both country-level and global measures of the social cost of greenhouse gases, to use country-specific values for monetizing climate damages, to represent uncertainties by reporting distributions instead of using only central values, and to conduct a temporal distributional analysis that shows the magnitudes of climate damages across generations. We also provide recommendations for the discount rates that should be used when estimating the social cost of greenhouse gases, and the appropriate discount rates for regulatory impact analyses that include the social cost of greenhouse gases.
Rules of creative thinking: algorithms, heuristics and Soviet cybernetic psychology
Authors: Babintseva Ekaterina 
Published: October 2023

AbstractIn the 1960s, creativity became an important category for the Soviet state. Soviet educators and policy makers came to define creativity as problem solving in the service of Soviet automation. At the same time, the introduction of cybernetics, information theory and methods of artificial intelligence (AI) to psychology enabled Soviet researchers to perform quantitative studies of human cognition. The state concern with creative thinking and the cyberneticization of Soviet psychology allowed for the first quantitative studies of human problem solving. These shifts in Soviet society and scientific communities created fertile ground for the creation of Lev Landa's algo-heuristic theory (AHT), a pedagogical method of cultivating rule-bound creativity relying on tools and instruments developed and perfected in information theory and AI research. Drawing on scholarship in the history of algorithmic rationality, the Cold War discourse on creativity as a corporate imperative, and the place of cybernetics-inflected methods in the welfare domain, this article analyses the AHT as rule-based instrument of making creative thinking accessible to the lay mind.
When Authoritarian Legacies Matter: Constructive and Blind National Pride and Voter Turnout in New Democracies
Authors: Kim Gidong , Lee Jae Mook 
Published: October 2023

Abstract
In new democracies, what is the role of nationalism in terms of democratic behavior such as voter turnout? Previous studies have found that, in Western democracies, constructive national pride increases voter turnout, while blind national pride decreases it. However, little scholarly attention has been paid to new democracies. Given different political contexts, we argue that blind national pride can boost turnout in some new democracies that have lingering authoritarian legacies. Using the case of South Korea, we offer a theory about the relationship between blind national pride and voter turnout. We show that, in contrast to the West, blind national pride is positively associated with turnout in South Korea, and that the relationship appears more robust among both older cohorts, who experienced authoritarianism directly in the recent past, and those with conservative ideologies.
Business transactions and ownership ties between firms
Authors: Lőrincz László , Juhász Sándor , O’Szabó Rebeka 
Published: October 2023

AbstractIn this study, we investigate the creation and persistence of interfirm ties in a large-scale business transaction network. Business transaction relations (firms buying or selling products or services to each other) are driven by economic motives, but because trust is essential to business relationships, the social connections of owners or the geographical proximity of firms can also influence their development. However, studying the formation of interfirm business transaction ties on a large scale is rare, because of the significant data demand. The business transaction and the ownership networks of Hungarian firms are constructed from two administrative datasets for 2016 and 2017. We show that direct or indirect connections in this two-layered network, including open triads in the business network, contribute to both the creation and persistence of business transaction ties. For our estimations, we utilize log-linear models and emphasize their efficiency in predicting links in such large networks. We contribute to the literature by presenting different patterns of business connections in a nationwide multilayer interfirm network.
The effect of Abelmoschus esculentus L. (Okra) extract supplementation on glycaemic control, inflammation, kidney function and expression of PPAR-α, PPAR-γ, TGF-β and Nrf-2 genes in patients with diabetic nephropathy: a triple-blind, randomised, placebo-controlled trial
Authors: Nikpayam Omid , Saghafi-Asl Maryam , Safaei Ehsan , Bahreyni Nazgol , Sadra Vahideh , Asgharian Parina 
Published: October 2023

AbstractThe present study was carried out to evaluate the effects of okra extract supplementation on kidney function, glycaemic control, inflammation and gene expression in patients with diabetic nephropathy (DN). A total of sixty-four DN patients based on the inclusion and exclusion criteria were recruited in this triple-blind placebo-controlled randomised clinical trial. Participants were randomly allocated to receive a 125-mg capsule of dried okra extract (DOE) (n 32) or placebo (n 32) for 10 weeks. At the baseline and endpoint of the trial, kidney function, glycaemic indices, inflammation and gene expression were evaluated. Statistical analysis showed that fasting blood glucose, HbA1c and insulin resistance significantly reduced in the DOE group although between-group analysis did not show any significant difference. Also, no significant difference was observed in urine protein, urine creatinine and high-sensitivity C-reactive protein between the two groups. Furthermore, gene expression of PPAR-α, PPAR-γ, transforming growth factor-beta and Nrf-2 did not affect the end of the trial in comparison with the baseline. According to the present study, DOE did not have impressive effects on kidney function, inflammation, glycaemic management and gene expression in patients with DN.
Association of sarcopenia with rapid kidney function decline and chronic kidney disease in adults with normal kidney function
Authors: Zheng Xiaowei , Ren Xiao , Jiang Minglan , Han Longyang , Zhong Chongke 
Published: October 2023

AbstractThe association between sarcopenia and kidney function remains poorly investigated. We aimed to evaluate the associations between sarcopenia status and kidney function (rapid kidney function decline and chronic kidney disease (CKD)) in middle-aged and older Chinese population. A total of 9375 participants from the China Health and Retirement Longitudinal Study 2011 were included in the cross-sectional analyses. A total of 5864 participants with eGFRcr-cys ≥ 60 ml/min per 1·73 m2 at baseline were included in the longitudinal analyses and were followed up in 2015. Sarcopenia status was defined according to the Asian Working Group for Sarcopenia 2019 criteria. In the cross-sectional analyses, possible sarcopenia and sarcopenia were significantly associated with an increased risk of CKD. During the 4 years of follow-up, 359 (6·12 %) participants experienced rapid decline in kidney function and 126 (2·15 %) participants developed CKD. After multivariable adjustment of baseline eGFRcr-cys level and other risk factors, possible sarcopenia (OR, 1·33; 95 % CI 1·01, 2·12) and sarcopenia (OR, 1·49; 95 % CI 1·05, 2·12) were associated with an increased risk of primary outcome (composite of rapid decline in kidney function (annualised decline in eGFRcr-cys ≥ 5 ml/min per 1·73 m2) and progression to CKD (eGFRcr-cys < 60 ml/min per 1·73 m2). Individuals with low muscle mass or low muscle strength alone also had an increased risk of rapid decline in kidney function and progression to CKD.