bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Link Between Expertise, the Cognitive Demands of Teacher Noticing and, Experience in Teaching Mathematics in Secondary Schools
Authors: Bastian Anton , Kaiser Gabriele , Meyer Dennis , König Johannes 
Published: May 2023

Abstract
Teacher noticing, a situation-specific part of teachers’ professional competence, has gained much importance in the past two decades. The construct is believed to play a crucial role in the transfer of knowledge and skills into professional teaching performance. However, there is little empirical evidence on how the length of teachers’ teaching experience affects the development of expertise in teacher noticing. In particular, little research has been conducted on the development of facets of teacher noticing—namely perception, interpretation, and decision-making—as well as the handling of cognitive demands while applying teacher noticing. To fill this research gap, the present study investigates the teacher noticing of master’s students, early-career teachers, and experienced teachers in the context of secondary mathematics via cross-sectional comparison. Teacher noticing skills and differences between the three groups are analyzed based on participants’ ability to deal with the cognitive demands of an established video-based teacher noticing instrument. The results suggest significant increases in teacher noticing from students to in-service teachers, especially in mathematic-specific areas. Hardly any significant differences were found between early-career and experienced teachers, which suggests a stagnation in teacher noticing skills. However, the early-career teachers showed better performance in decision-making and mathematics-related items as well as knowledge-based items related to recent topics from mathematics pedagogy and general pedagogy. This result emphasizes the importance of knowledge prerequisites for the development of expertise in teacher noticing. It also highlights that expertise development is not directly connected to the length of teaching experience.
Reducing Medication Errors by Adopting Automatic Dispensing Cabinets in Critical Care Units
Authors: Tu Hui-Ning , Shan Tzu-Hao , Wu Yu-Chin , Shen Pei-Hsuan , Wu Tsung-Yu , Lin Wen-Liang , Yang-Kao Yea-Huei , Cheng Ching-Lan 
Published: April 2023

AbstractMedication errors can have severe consequences and threaten patient safety. The patient safety-related benefits of automated dispensing cabinets (ADCs) have been reported by several previous studies, including a reduction in medication errors in intensive care units (ICUs) and emergency departments. However, the benefits of ADCs need to be assessed, given the different healthcare practice models. This study aimed to compare the rates of medication errors, including prescription, dispensing, and administrative, before and after using ADCs in intensive care units. The prescription, dispensing, and administrative error data before and after the adoption of ADCs were retrospectively collected from the medication error report system. The severity of medication errors was classified according to the National Coordinating Council for Medication Error Reporting and Prevention guidelines. The study outcome was the rate of medication errors. After the adoption of ADCs in the intensive care units, the rates of prescription and dispensing errors reduced from 3.03 to 1.75 per 100,000 prescriptions and 3.87 to 0 per 100,000 dispensations, respectively. The administrative error rate decreased from 0.046 to 0.026%. The ADCs decreased National Coordinating Council for Medication Error Reporting and Prevention category B and D errors by 75% and category C errors by 43%. To improve medication safety, multidisciplinary collaboration and strategies, such as the use of automated dispensing cabinets, education, and training programs from a systems perspective, are warranted.
Effective treatment of petroleum oil–contaminated wastewater using activated sludge modified with magnetite/silicon nanocomposite
Authors: Zabermawi Nidal M. , Bestawy Ebtesam El 
Published: May 2023

Abstract
The study aimed to optimize the treatment of oil refinery–contaminated wastewater through modification of the well-established activated sludge process with new nanocomposite (NC) materials to produce high-quality treated effluents for potential reuse. Refinery wastewater samples were collected from one of the major oil refineries, Alexandria, Egypt, where the operation, performance, and efficiency of the current activated sludge (AS) unit were evaluated for 6 consecutive months. Two AS bench scale PVC basins were constructed. Magnetite nanoparticles (Fe3O4 NPs) and magnetite silica (Fe3O4/silica) nanocomposite (NC) were prepared and characterized. Bioremediation trials were carried out in a sequential batch mode using Fe3O4/silica NC–modified AS and control (unmodified AS). The proposed treatment produced high-quality effluents in a very short time (2 h) despite the very high initial pollutant concentration accompanied with a reduction in the produced sludge. The highest removal of TSS, TDS, BOD, COD, and OG from raw industrial wastewater recorded 78.33, 3.6, 87.65, 85.17, and 92.92% compared to 55.3, 12.6, 50.0, 40.22, and 56.84%, respectively, achieved by the unmodified AS unit. The results confirmed that integration of the AS treatment with nanomaterial composite is highly effective, promising, and economic for the treatment of highly toxic and complicated industrial wastewater such as petroleum refinery effluents.
Potentials of mono- and multi-metal ion removal from water with cotton stalks and date palm stone residuals
Authors: Nagy Heba , Fawzy Manal , Hafez Elsayed , Mahmoud Alaa El Din 
Published: May 2023

AbstractIn this work, cotton stalks
(Gossypium barbadense) and date palm stones (Phoenix dactylifera) have been used as biosorbents to remove cadmium; Cd(II), lead; Pb(II), and zinc; Zn(II) from mono- and multi-solutions. Each biosorbent was characterized using SEM-EDX, and FT-IR. The findings showed that pH, dose, contact time, metal concentration, and particle size affect the treatment process. The adsorption pattern was Pb(II) > Cd(II) > Zn(II) for both biosorbents. The adsorption performance of cotton stalks was higher than that of date palm stones. The fitted maximum uptake capacities; qm of cotton stalks were higher than those of date palm stones. The maximum adsorption at optimum conditions of Pb(II), Cd(II), and Zn(II) with cotton stalks were 98%, 92.1%, and 78.9%, respectively, within 30 min. While the maximum adsorption of Pb(II), Cd(II), and Zn(II) with date palm stones were 94.6%, 76%, and 68.6%, respectively. Results confirmed the antagonistic effect of heavy metal removal at optimum conditions. Biosorbents could remove ~ 100% of the metal ions from real wastewater samples. Regeneration investigation revealed a successful reusability of both biosorbents for four cycles.
Mean Field Games for Diel Vertical Migration with Diffusion
Authors: Mazuryn Maksim , Thygesen Uffe Høgsbro 
Published: April 2023

AbstractWe present a theoretical framework, based on differential mean field games, for expressing diel vertical migration in the ocean as a game with a continuum of players. In such a game, each agent partially controls its own state by adjusting its vertical velocity but the vertical position in a water column is also subject to random fluctuations. A representative player has to make decisions based on aggregated information about the states of the other players. For this vertical differential game, we derive a mean field system of partial differential equations for finding a Nash equilibrium for the whole population. It turns out that finding Nash equilibria in the game is equivalent to solving a PDE-constrained optimization problem. We detail this equivalence when the expected fitness of the representative player can be approximated with a constant and solve both formulations numerically. We illustrate the results on simple numerical examples and construct several test cases to compare the two analytical approaches.
Decarbonisation strategies in industry: going beyond clusters
Authors: Rattle Imogen , Gailani Ahmed , Taylor Peter G. 
Published: April 2023

AbstractAn effective and just industrial transition is necessary both to mitigate climate change and protect jobs, and as a precursor to enable other sectors to decarbonise. Activity is at an early stage and examples of successful sector-wide interventions to decarbonise industry do not yet exist. Governments of industrialised countries are beginning to develop policy and provide funding to support deployment of carbon capture and low-carbon hydrogen infrastructures into high-emitting industrial clusters, but options for sites outside of clusters, denoted here as ‘dispersed sites’, are also required. This paper takes a mixed methods approach to provide the first analysis of the issues facing dispersed industrial sites on their route to decarbonisation and to suggest solutions to the challenges they face. Using the UK as a case study, it first characterises dispersed sites in terms of location, emissions released, sectors involved, and size of companies affected. It then shows how these features mean that simply expanding the geographical scope of the present UK decarbonisation strategy, which focuses on the provision of carbon capture and low-carbon hydrogen, would face a number of challenges and so will need to be broadened to include a wider range of abatement options and other considerations to meet the needs of dispersed sites. While the solutions for each place will be different, these are likely to include some combination of the expansion of shared infrastructure, the development of local zero-carbon hubs, research into a wider range of novel abatement technologies and facilitating local participation in energy planning. The paper concludes with a discussion of remaining knowledge gaps before outlining how its findings might apply to industrial decarbonisation strategies in other countries.
Mechanical Properties of Ti–5Al–5V–5Mo–3Cr Alloy Sintered From Blended Elemental Powders
Authors: Kozlík Jiří , Preisler Dalibor , Haasová Michaela , Stráský Josef , Chráska Tomáš , Janeček Miloš 
Published: April 2023

AbstractThe field-assisted sintering technique (FAST) was successfully used to sinter, homogenize, and age the Ti–5Al–5V–5Mo–3Cr (Ti-5553) aerospace alloy from blended elemental powders in a single processing run. Sintering at a comparatively high temperature of 1500 °C assured chemical homogeneity of the material. Subsequently, without cooling to the room temperature, the temperature was lowered to 600 °C for 30 min to provide annealing treatment and to produce a desired lamellarα + βmicrostructure. Using an in-house designed assembly, a fully dense rod of 15 mm in diameter and 70 mm in length was successfully sintered. Microstructural and mechanical properties of the alloy were investigated and compared with the conventionally processed Ti-5553 alloy. A good combination of strength (1183 MPa) and ductility (6 pct) was achieved; these values are fully comparable to the conventional cast, forged, and aged Ti-5553 alloy. It was shown that homogeneous Ti-5553 alloy can be produced by FAST, FAST can instantly provide necessary annealing steps, and the FAST process can be upscaled to produce homogeneous rods.
3D Da Vinci robotic surgery: is it a risk to the surgeon’s eye health?
Authors: Molle Fernando , Savastano Maria Cristina , Giannuzzi Federico , Fossataro Claudia , Brando Davide , Molle Andrea , Rebecchi Maria Teresa , Falsini Benedetto , Mattei Roberta , Mirisola Giorgia , Poretti Eleonora , Cestrone Valentina , D’Agostino Elena , Bassi Pierfrancesco , Scambia Giovanni , Rizzo Stanislao 
Published: April 2023

AbstractDa Vinci three-dimensional (3D) system has been increasingly used in customary surgical settings, gaining fundamental relevance for abdominal, urological, and gynecological laparoscopic surgery. The aim of this research is to evaluate the degree of discomfort and potential changes in the binocular vision and ocular motility of surgical operators, who employ 3D vision systems during Da Vinci robotic surgery. Twenty-four surgeons were enrolled in the study, including twelve who typically use the 3D Da Vinci system and twelve who routinely employ 2D system. Routine general ophthalmological and orthoptic examinations were conducted at baseline (T0), the day before surgery, and 30 min after the 3D or 2D surgery (T1). In addition, surgeons were interviewed using a questionnaire of 18 symptoms, with each item containing three questions regarding the frequency, severity, and bothersomeness of the symptoms, in order to evaluate the degree of discomfort. Mean age at evaluation was 45.28 ± 8.71 years (range 33–63 years). Cover test, uncover test, and fusional amplitude showed no statistically significant difference. After surgery, no statistical difference was observed in the Da Vinci group on the TNO stereotest (p > 0.9999). However, the difference in the 2D group resulted statistically significant (p = 0.0156). Comparing participants (p 0.0001) and time (T0–T1; p = 0.0137), the difference between the two groups was statistically significant. Surgeons using 2D systems reported more discomfort than those using 3D systems. The absence of short-term consequences following surgery with the Da Vinci 3D system is a promising conclusion, considering the numerous advantages of this technology. Nonetheless, multicenter investigations and more studies are required to verify and interpret our findings.
Russia’s Approach to Connectivity in Asia: From Cooperation to Coercion
Authors: Silvan Kristiina , Kaczmarski Marcin 
Published: May 2023

AbstractRussia’s foreign policy concept, last updated in 2023, envisioned economic and political cooperation with countries of the Asia-Pacific as important for advancing Russia’s agenda as a global power and emphasised the need to improve connectivity across Eurasia. This article applies a novel theoretical framework for analysing Russia’s approach to connectivity in Asia since the collapse of the Soviet Union. Drawing from policy documents and secondary sources, the article identifies three different geographical spaces targeted by Russian connectivity policy: East of the Russian Federation, post-Soviet Central Asia, and Greater Eurasia. It is argued that the attempts to improve the cooperative connectivity of the Russian Far East have been half-hearted. In contrast, the attempt to retain and rebuild connectivity within the post-Soviet space has followed the logics of competition, containment, and coercion. Moreover, by promoting the Greater Eurasian Partnership, Russia has sought to keep status equality with China against the backdrop of the latter’s Belt and Road Initiative. The article maintains that Russia is a connectivity actor of its own right, even if there is a major gap between its connectivity strategy and its implementation. It further suggests that the war in Ukraine has accelerated the trend towards coercion and disconnectivity.
Contentious Connectivity—the USA, Japan, and the Free and Open Indo-Pacific
Authors: Gaens Bart , Sinkkonen Ville 
Published: May 2023

AbstractThis article explores how the USA and Japan have aimed to advance connectivity and infrastructure investment in the Indo-Pacific, implicitly or explicitly in response to China’s Belt and Road Initiative (BRI). Both actors’ vision, strategies, and policies have been rolled out under the banner of the “Free and Open Indo-Pacific” (FOIP). The article first frames connectivity and the FOIP construct in the context of regional order and great-power relations in the Indo-Pacific. It then provides an in-depth assessment of the different initiatives by the USA and Japan, scrutinizing their progress on the ground, shortcomings, and relevant interlinkages. After an analysis of the logics that inform these connectivity initiatives, the article offers three key axioms and assesses implications for order more broadly. First, the West must fix the gap that often exists between rhetoric and capabilities in the sphere of infrastructure investments. Second, Western actors, including the USA and Japan, need to be clear about objectives. Namely, they must decide whether the aim of connectivity is to compete directly with China or to focus on complementarities and comparative advantages. Third, the USA and Japan need to prioritize connections and spheres of connectivity that are deemed strategically central, at the expense of others. More generally, given the connective logics that key actors currently harness, a fracturing of the region into one of the different orders comprising competing yet overlapping connections beckons.
Motivation to Become a Vocational Teacher As a Second Career: A Mixed Method Study
Authors: Mičiulienė Rita , Kovalčikienė Kristina 
Published: May 2023

AbstractWithin the school-based vocational education and training system, so-called hybrid teachers, i.e. who both work in a vocational school and a business, can add value to the quality of VET as well as can solve ageing and the threat of shortages among VET teachers. In this research, the motivation of becoming a VET teacher as a second career and its perception by participants were examined using a mixed-method explanatory sequential study design. In the first phase, 114 VET teachers from 33 VET institutions in Lithuania were surveyed using the Factors Influencing Teaching (FIT) Choice scale. In the second phase, five vocational teachers were interviewed. The qualitative results supported and complemented the results of quantitative research by emphasizing the importance of intrinsic motivation to teach and explained in-depth the components of antecedent socialisation and perceptions of teaching. The results were discussed considering similar studies on second-career teachers conducted in other countries.
Transperitoneal Laparoscopic and Robotic Partial Nephrectomy for Renal Cancer in Patients with Previous Abdominal Surgery: a Single Centre Experience
Authors: Gadus Lukas , Chmelik Frantisek , Matejkova Marketa , Heracek Jiri 
Published: April 2023

AbstractPatients with previous abdominal surgery are at an increased risk of peritoneal adhesions, which may complicate transperitoneal surgery. The objective of this article is to report single centre experience with transperitoneal laparoscopic and robotic partial nephrectomy for renal cancer in patients with previous abdominal surgery. We evaluated data from 128 patients who underwent laparoscopic or robotic partial nephrectomy from January 2010 to May 2020. Patients were divided into three groups according to the localization of main previous surgery: in the upper contralateral abdominal quadrant, in the upper ipsilateral abdominal quadrant or in the middle line, in lower abdominal quadrants. Each group was divided into two subgroups (laparoscopic/robotic partial nephrectomy). We separately analysed data of indocyanine green-enhanced robotic partial nephrectomy. Our study did not find significant difference in the rate of intraoperative or postoperative complications between any of the groups. The type of partial nephrectomy (robotic or laparoscopic) affected the surgery time, blood loss, and length of stay in hospital, but did not significantly influence the frequency of complications. Partial nephrectomy in group of patients with prior renal surgery led to a higher rate of intraoperative low-grade complications. We did not observe more favourable results for indocyanine green-enhanced robotic partial nephrectomy. The location of previous abdominal surgery does not influence the rate of intraoperative or postoperative complications. The type of partial nephrectomy (robotic or laparoscopic) does not affect the frequency of complications.
Study on the Microstructure of a Photonic Crystal Fiber using the Elasto-Optical Effect
Authors: Sánchez Alejandro , Cortés Alejandro , Porta Andrés V. , Orozco Susana 
Published: April 2023

AbstractPhotonic crystal fibers are characterized by their periodic structure with dimensions in the nanometer to micrometer range, which gives them the potential to be applied in various technical areas. In this work, we study the microstructure of a hexagonal photonic crystal fiber through a macroscopic localized compression test and measurements of relative intensity changes of a transmitted signal in the photonic crystal fiber. Our experimental study was carried out by controlling the orientation of the localized compression respective to the cross-section microstructure of the photonic crystal fiber. To complete the study, we developed a theoretical model based on the elasto-optic effect, and the numerical solution obtained with the model was compared with the experimental results. With both experimental and theoretical results, we obtained a causal correlation between the loss of relative intensity of the signal traveling through the hexagonal photonic crystal fiber and the orientation (respective to the fiber plane) of a localized compression on photonic crystal fiber. In this way, we can explore the cross-section microstructure of a photonic crystal fiber and its orientation in a device with a macroscopic compression test.
Gender, Perceived Insecurity, Corruption Perception, Subjective Norm, and Household Income: A Configurational Approach to Entrepreneurial Intention
Authors: Pinazo-Dallenbach Pablo , Castelló-Sirvent Fernando 
Published: April 2023

AbstractThe entrepreneurial intention is of great importance as an immediate antecedent of entrepreneurship, understood as a key to explain future regional economic development in emerging countries. There is a growing interest from academia about the entrepreneurial intention of university students from emerging countries. This study addresses, in an exploratory way, the combined effect of three internal variables affected by the environment (perceived insecurity, corruption perception, and subjective norm) and two sociodemographic variables (household income and gender) and their impact on the entrepreneurial intention of university students. A sample of students (N = 380; male = 185; female = 195) from the Technological University of the State of Zacatecas (Mexico) is used and a causal model is proposed following the fsQCA configurational methodology. This study highlights the gender gap that affects women even in the stage that precedes the act of entrepreneurship as well as the importance of having financial resources. Also, the results show how citizen security facilitates the development of entrepreneurial intention and the need of improving the formal procedures surrounding entrepreneurship to reduce the facilitating effect of corruption. Finally, the findings support the important role of subjective norm. From a cognitive point of view, a configurational approach is addressed to explain the effect on entrepreneurial intention of phenomena that are strongly prevalent in the Latin America and the Caribbean region, such as gender inequality, citizen insecurity, corruption, and poverty.
Recent progress on integrally convex functions
Authors: Murota Kazuo , Tamura Akihisa 
Published: April 2023

AbstractIntegrally convex functions constitute a fundamental function class in discrete convex analysis, including M-convex functions, L-convex functions, and many others. This paper aims at a rather comprehensive survey of recent results on integrally convex functions with some new technical results. Topics covered in this paper include characterizations of integral convex sets and functions, operations on integral convex sets and functions, optimality criteria for minimization with a proximity-scaling algorithm, integral biconjugacy, and the discrete Fenchel duality. While the theory of M-convex and L-convex functions has been built upon fundamental results on matroids and submodular functions, developing the theory of integrally convex functions requires more general and basic tools such as the Fourier–Motzkin elimination.