bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Social Regulation Perspective on Team Reflexivity: The Development of an Analytical Framework
Authors: Wijga Marijn , Endedijk Maaike D. , Veldkamp Bernard P. 
Published: March 2023

AbstractTeams are nowadays seen as the cornerstones of organizations. Previous research has shown that team reflexivity is positively related to team performance. Traditionally, team reflexivity is conceptualized as a process that occurs during transition moments, ignoring reflexive moments during teams’ action phases. Moreover, most studies used self-reported questionnaires and cross-sectional designs and thus provided limited insights into how team reflexivity unfolds during both the action and transition phases of teams. In this study, we adopt a social regulation perspective to develop an analytical framework to study team reflexivity in the flow of work. The study was conducted in a software development setting and included 50 h of video recordings of different types of team meetings of six professional self-managing teams (a total of 33 team members). Using concepts from social regulation theory as developed in student learning settings as an analytical lens, an analytical framework with four components of social regulation (knowledge co-construction and regulation; regulation activities; focus of regulation, and type of interaction) was developed and applied. Outcomes show that in more than half of their conversations, the teams jointly engaged in regulation-related activities, of which most concerned planning activities and a very low occurrence of evaluation activities. Different patterns of team reflexivity were found in the action and transition phase but zooming in on the interactions also showed high interrelatedness of the different activities. The analytical framework could assist future research to further study the interaction between the different components and how they mutually relate to team performance.
Gender dynamics in seed systems: female makeover or male takeover of specialized sweetpotato seed production, in Lake Zone Tanzania?
Authors: McEwan Margaret A. , Matui Moses S. , Mayanja Sarah , Namanda Sam , Ogero Kwame 
Published: March 2023

AbstractInterest is growing for the development of inclusive seed production models. However, there is limited understanding of gender-based roles and constraints and how these might influence gender relations in seed production. Through a case study on sweetpotato seed production in Lake Zone Tanzania, this article examines men’s and women’s roles in seed production with the introduction of specialized seed practices and a commercial orientation. The study uses data from 17 field-based plot observations and eight sex disaggregated focus group discussions (FGDs) with 33 (51% women and 48% men) decentralized vine multipliers (DVMs). Participatory, gender-based analytical tools were used to obtain an in-depth understanding of gender dimensions and implications of new seed production practices, the resources required and access to those resources. Our findings show that men and women have complementary roles in specialized seed production, and that men increased their involvement in production and commercialization, especially when larger monetary inputs and transactions took place. Women gained new tangible (income) and intangible (knowledge) assets, which enhanced their community status. Women’s contributions to household income became more visible. In conclusion male-takeover did not take place. There were changes in the perceptions around sweetpotato production and gender relations. As women’s contributions to household income became more visible, they were able to negotiate with their husbands on access to key resources to maintain this household revenue stream. We discuss how the new knowledge and skills related to seed production enhanced women’s status in the community. These dynamics initiated changes in gender relations and challenged prevailing community perceptions on gender roles.
Water and production reflections on the water supply to urban workshops in roman times
Authors: Sánchez López Elena H. 
Published: March 2023

AbstractResearch into water management in Roman towns has traditionally focused on its supply by means of aqueducts and its use in the thermal baths and domus of the elites. However, the urban functions of water included uses that went far beyond recreational, social activities and also included its supply to production facilities. Numerous artisanal activities required large amounts of water, including pottery, textile activities, wickerwork and manufacturing bone or metal instruments. All these activities are commonly identified in Roman towns. In each case, the workshops could have obtained water not only from wells and cisterns, but also through a connection to the urban supply network, thanks to an aqua publica concession. In this study, we compile both archaeological and textual evidence, including literary and legal texts, on the private use of aqua publica for productive activities in urban contexts.
Time as an argument in Roman water law
Authors: Möller Cosima 
Published: March 2023

AbstractThis article analyses the function of time in legal regulations of water use. It is discussed how time units are employed to specify the use of water through servitudes, enabling the involved parties an efficient distribution. In this context, it is examined how the jurists take different approaches when it comes to defining the terms of use and maintenance for a servitude and how the diverging conceptions are influenced by philosophical ideas. Moreover, the legal regulation for usage of multiple parties in irrigation communities is explored. Further, the article deals with the role of time for the formation and nullification of servitudes. The jurists apply different conceptions in deciding whether a servitude can be lost through non-use or created through acquisitive prescription and other means, which take the factor time into account. It becomes evident that the opinions of the jurists derive from philosophically influenced schools of legal thinking. Finally, the time intervals of possession are analysed, which are necessary for allowing judicial protection of water use through the praetor. In order to enforce an interdictum, solely a one-day use of the possessor is required. The conclusion highlights the connection between legal rules and archaeological evidence.
Determining the drilling mud window by integration of geostatistics, intelligent, and conditional programming models in an oilfield of SW Iran
Authors: Kianoush Pooria , Mohammadi Ghodratollah , Hosseini Seyed Aliakbar , Keshavarz Faraj Khah Nasser , Afzal Peyman 
Published: March 2023

AbstractAccurate knowledge of pore and fracture pressures is essential for drilling wells safely with the desired mud weight (MW). Overpressure occurs when the pore pressure is higher than the normal hydrostatic pressure. There is a challenge regarding the pressure studies domain in an oilfield in SW Iran, where lack of geo-mechanical data limits exact mud window calculation. Also, the reservoir generally consists of carbonate rocks and contains no shale interbeds, so mechanical stratigraphy based on Gamma ray could not be applied. This study is to provide safe drilling considering MW to prevent the flow or loss in the vicinity of the new wells in the studied field. In this research, the formation pressures and mud window models are determined by combining geostatistical, intelligent, and conditional programming models and compared with real data. The conditional programming was also used to correct small out-of-range data. The highest correlation between the final effective pressure and velocity cube was observed in lower Fahliyan Formation with 0.86 and Ilam with 0.71.The modeled MW difference ranged between 2.5 and 30 PCF. Also, the maximum modeled MW is 150 PCF in the upper Fahliyan Formation. Heavy mud of more than 130 PCF is suggested for drilling the Khalij member and continues to the end of stratigraphy column. Best observed correlation comparing the drilled and modeled MW, especially achieved in the Fahliyan reservoir Formation with more than 100 PCF and the Ilam Formation with 80–100 PCF. Finally, 3D formation pressures are presented and recommended for further safe drillings.
Performance forecasting of hydraulically fractured horizontal wells using dynamic-drainage-area concept with correct distance of investigation
Authors: Fan Haijun 
Published: March 2023

AbstractPerformance forecasting of multi-fractured horizontal wells (MFHWs) completed in tight/shale oil or gas reservoirs is of great significance in the development of unconventional resources. Dynamic drainage area (DDA) concept has emerged as a production forecasting methodology for unconventional reservoirs. This paper investigated the DDA method and derived correct expressions of distance of investigation (DOI) for both constant production rate and constant bottom-hole pressure cases by integrating material balance and deliverability equation within the range of DOI. The modified DDA method with correct DOI coefficients provided in this paper permits direct calculation of dynamic performance at arbitrary time steps before the end of transient linear flow. At the same time smooth production forecasting of MFHWs from transient linear to boundary-dominated flow is realized without modification by extra coefficient. Hybrid models such as DDA plus dual-exponential and DDA plus hyperbolic are presented, which can be applied quickly and easily to MFHWs in unconventional reservoirs as alternatives to complex numerical simulation. Meanwhile, average pressure in the range of DDA can be readily obtained with correct DOI coefficients, avoiding complex iterative calculations. The reliability and practicability of this solution have been demonstrated by synthetic and field cases in this work.
Remarks on the pair correlation statistic of Kronecker sequences and lattice point counting
Authors: Weiss Christian 
Published: March 2023

AbstractIn this short note, we reformulate the task of calculating the pair correlation statistics of a Kronecker sequence as a lattice point counting problem. This can be done analogously to the lattice based approach which was used to (re-)prove the famous three gap property for Kronecker sequences. We show that recently developed lattice point counting techniques can then be applied to derive that a certain class of Kronecker sequences have $$\beta $$
β
-pair correlations for all $$0< \beta < 1$$

0
<
β
<
1

.
Application of nonwoven microfiltration membrane on activated sludge final effluent: improving wastewater quality for reuse
Authors: Kabuba J. , Masala M. S. , Topkin J. 
Published: March 2023

AbstractThe application of membrane technology in wastewater treatment for reuse is one of the alternatives to reduce the demand of water in domestic, agricultural and industrial sectors. This study attempts to improve wastewater quality effluent, prior to disinfection, for re-use. Clarifier effluent from a biological nutrient removal (BNR) treatment plant was diverted to a nonwoven membrane pilot filtration unit. It was thus positioned to further enhance the clarifier effluent as a polishing arrangement. Water Quality Index (WQI), Single Factor Pollution Index (Pi), Water Use License (WUL) and removal efficiency methods were used to interpret the water quality data for BNR clarifier effluent and nonwoven membrane permeate. The results showed that this nonwoven microfilter membrane is able to improve wastewater quality from BNR clarifier effluent. Escherichia coli (E. coli) reduction was the highest with a removal efficiency of 90%, followed by chemical oxygen demand 25%, NH4+ 22%, NO3− 12.6%, PO4 7.8%, suspended solids 6.3%. The lowest reduction was electrical conductivity of 5.2%. Permeate results indicated that physiochemical and microbial parameters were complying with the limits of WUL. Pi has revealed that BNR clarifier effluent water quality is medium polluted versus slightly polluted permeate. WQI results for BNR clarifier effluent showed good water quality and the water can be reused for domestic, irrigation and industrial purposes, while permeate WQI results indicated excellent water quality and the water can be reused for drinking, domestic, irrigation and industrial purposes. Outstanding permeate water quality improvement was observed on E.coli counts improving from 4974.48 to 294.33 counts/L. The standard of E.coli according to the WUL at this wastewater care works is 500 counts/L. Results indicate that nonwoven membrane filtration can improve microbial contamination and decrease the demand of chlorine for disinfection of wastewater final effluent. The nonwoven membrane filtration can decrease the water scarcity gap in South Africa for direct water reclamation by improving effluent wastewater.
Threshold of 25(OH)D and consequently adjusted parathyroid hormone reference intervals: data mining for relationship between vitamin D and parathyroid hormone
Authors: Gong M. , Wang K. , Sun H. , Wang K. , Zhou Y. , Cong Y. , Deng X. , Mao Y. 
Published: March 2023

Abstract
Purpose
By recruiting reference population, we aimed to (1): estimate the 25(OH)D threshold that maximally inhibits the PTH, which can be defined as the cutoff value for vitamin D sufficiency; (2) establish the PTH reference interval (RI) in population with sufficient vitamin D.

Methods
Study data were retrieved from LIS (Laboratory Information Management System) under literature suggested criteria, and outliers were excluded using Tukey fence method. Locally weighted regression (LOESS) and segmented regression (SR) were conducted to estimate the threshold of 25(OH)D. Multivariate linear regression was performed to evaluate the associations between PTH concentration and variables including 25(OH)D, gender, age, estimated glomerular filtration rate (EGFR), body mass index (BMI), albumin-adjusted serum calcium (aCa), serum phosphate(P), serum magnesium(Mg), and blood collection season. Z test was adopted to evaluate whether the reference interval should be stratified by determinants such as age and gender.

Results
A total of 64,979 apparently healthy subjects were recruited in this study, with median (Q1, Q3) 25(OH)D of 45.33 (36.15, 57.50) nmol/L and median (Q1, Q3) PTH of 42.19 (34.24, 52.20) ng/L. The segmented regression determined the 25(OH)D threshold of 55 nmol/L above which PTH would somewhat plateau and of 22 nmol/L below which PTH would rise steeply. Multivariate linear regression suggested that gender, EGFR, and BMI were independently associated with PTH concentrations. The PTH RI was calculated as 22.17–72.72 ng/L for subjects with 25(OH)D ≥ 55 nmol/L with no necessity of stratification according to gender, age, menopausal status nor season.

Conclusion
This study reported 25(OH)D thresholds of vitamin D sufficiency at 55 nmol/L and vitamin D deficiency at 22 nmol/L, and consequently established PTH RIs in subjects with sufficient vitamin D for northern China population for the first time.
Recent Advances and Perspectives of Lewis Acidic Etching Route: An Emerging Preparation Strategy for MXenes
Authors: Huang Pengfei , Han Wei-Qiang 
Published: March 2023

AbstractSince the discovery in 2011, MXenes have become the rising star in the field of two-dimensional materials. Benefiting from the metallic-level conductivity, large and adjustable gallery spacing, low ion diffusion barrier, rich surface chemistry, superior mechanical strength, MXenes exhibit great application prospects in energy storage and conversion, sensors, optoelectronics, electromagnetic interference shielding and biomedicine. Nevertheless, two issues seriously deteriorate the further development of MXenes. One is the high experimental risk of common preparation methods such as HF etching, and the other is the difficulty in obtaining MXenes with controllable surface groups. Recently, Lewis acidic etching, as a brand-new preparation strategy for MXenes, has attracted intensive attention due to its high safety and the ability to endow MXenes with uniform terminations. However, a comprehensive review of Lewis acidic etching method has not been reported yet. Herein, we first introduce the Lewis acidic etching from the following four aspects: etching mechanism, terminations regulation, in-situ formed metals and delamination of multi-layered MXenes. Further, the applications of MXenes and MXene-based hybrids obtained by Lewis acidic etching route in energy storage and conversion, sensors and microwave absorption are carefully summarized. Finally, some challenges and opportunities of Lewis acidic etching strategy are also presented.
The innovation of iron and the Xiongnu – a case study from Central Mongolia
Authors: Brosseder Ursula , Pohl Ernst , Tseveendorzh Damdinsüren , Munkhbayar Lkhagvadorzh , Osinska Alexandra , Linzen Sven 
Published: March 2023

Abstract
This article presents the oldest iron smelting furnaces of the Xiongnu Empire period in central Mongolia and argues that a significant smelting center existed at the site of Baga Nariĭn Am. Five iron smelting furnaces and four smelting installations were excavated, with a total 26 furnaces further identified through SQUID magnetometry. In combination with a review of data on iron production in contemporary Mongolia, the Transbaikal region, Tuva, the Minusinsk Basin and the Altai, we argue that this new data alters existing narratives of the adoption of iron in eastern Eurasia. While iron smelting as such was adopted from the Minusinsk Basin, where the oldest iron smelting furnaces in eastern Eurasia are currently found, we suggest that the driving force behind the massive boom in iron metallurgy from the second century BCE onward was the Xiongnu Empire. During the course of the Xiongnu Empire, the development of more efficient iron technology is evident, with the steppe empire also inventing a new furnace type. These findings are significant for understanding the dynamics of iron industries in the eastern Eurasian Steppe and paves the way for necessary work on metallurgical installations in the Minusinsk Basin and Tuva.
Man-making, Nation-Building and National Reconstruction: the Engaged Hinduism of the RSS and the Vivekananda Kendra
Authors: Beckerlegge Gwilym 
Published: March 2023

AbstractThe offering of sevā in its more recent sense of organized service to humanity has been central to engaged Hinduism. Despite the scale of the practice of sevā by Hindutva-inspired organizations, scholarly studies have tended to focus on the political rather than the cultural and religious dimensions of their activities. An examination of the nature and extent of these organizations’ commitment to sevā reveals that, far from being monolithic in character, these organizations are characterized by different blends and balances of cultural, political, and religious aspirations and symbolism. This article explores examples of sevā activities drawn from two Hindutva-inspired organizations, the Rashtriya Svayamsevak Sangh (RSS) and the more recently formed Vivekananda Kendra, and aspects of the development of this practice within these groups. It considers what such groups might understand by engaged Hinduism, their goals, how they seek to realize these goals, and the relationship between their sevā activities and their wider cultural and political agendas, and some would say, in the terms of this volume, about the “benevolence” of their aims.
Phytochemical-Based Evidence of the Health Benefits of Bidens Pilosa Extracts and Cytotoxicity
Authors: Idris Oladayo Amed , Kerebba Nasifu , Horn Suranie , Maboeta Mark Steve , Pieters Rialet 
Published: March 2023

Abstract
Purpose
Bidens pilosa L. is traditionally used as a flavouring agent in foods, in the treatment of diseases, in agriculture as a biopesticide and herbicide, and in the phytoremediation of soils contaminated with heavy metals. The vast range of uses of B. pilosa for a variety of purposes is questionable, hence motivating the objectives of this study, which are to assess the cytotoxicity, health benefits, and/or risks of B. pilosa using chemical-based evidence.

Methods
A real-time cell analysis (xCELLigence system), ultra-high-performance liquid chromatography coupled to a quadrupole-time-of-flight mass spectrometer, high-performance liquid chromatography with a diode array detector, and chemical-based spectrophotometric methods were adopted in the study.

Results
High concentrations of the ethanol extracts exhibited cytotoxic activity on HepG2 (cancerous), and Vero (non-cancerous) cell lines, whereas the water extracts promoted cell proliferation at selected concentrations. The chemical profiling enabled the separation as well as characterisation of 137 phytochemicals. These were mainly phenolic acids, flavonoids, fatty acids, coumarins, and furanocoumarins. There was no toxic compound identified.

Conclusion
The ethanol extracts are generally more potent and exhibit stronger antioxidant activity and cytotoxicity, probably due to the presence of more flavonoids and phenolic acids, validating the uses of B. pilosa and its relevance as a source of functional phytochemicals.
The earlySTEM Program: An Evaluation Through Teacher Perceptions
Authors: Mesutoglu Canan , Corlu Mehmet Sencer 
Published: March 2023

AbstractConceptually grounded curricular materials in the context of professional development programs facilitate teachers’ adoption of new pedagogies. Even though science, technology, engineering, and mathematics (STEM) professional development opportunities for early grade level teachers continue to receive attention, one existing challenge is to support teachers further in implementing well-defined integrated STEM curricula. The earlySTEM program supports K–4 teachers with the systematically developed earlySTEM curriculum, its associated curricular materials, and year-long mentoring. The program was implemented in 26 schools. This mid-evaluation investigated teacher perceptions of the earlySTEM program with a focus on contributions and challenges. A total of 134 teachers from the 26 schools responded to a survey with open-ended questions. Survey data were analyzed using a descriptive approach. The findings indicated that the teachers had positive experiences with the earlySTEM program. The results revealed that the earlySTEM program is perceived to have contributed to (a) teachers’ STEM teaching skills and STEM conceptualizations and (b) students’ skills development and awareness on the connection of the curriculum content to real-world problems. The results also document the perceived challenge in implementing the earlySTEM curriculum: need for more classroom time. The conclusions offer insights for similar program designs.