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Box's paper helicopter has been used to teach experimental design for more than a decade. It is simple, inexpensive, and provides real data for an involved, multifactor experiment. Unfortunately it can also further an all-too-common practice that Professor Box himself has repeatedly cautioned against, namely ignoring the fundamental science while rushing to solve problems that may not be sufficiently understood. Often this slighting of the science so as to get on with the statistics is justified by referring to Box's oft-quoted maxim that "All models are wrong, however some are useful." Nevertheless, what is equally true, to paraphrase both Professor Box and George Orwell, is that "All models are wrong, but some are more wrong than others." To experiment effectively it is necessary to understand the relevant science so as to distinguish between what is usefully wrong, and what is dangerously wrong. This article presents an improved analysis of Box's helicopter problem relying on statistical and engineering knowledge and shows that this leads to an enhanced paper helicopter, requiring fewer experimental trails and achieving superior performance. In fact, of the 20 experimental trials run for validation–10 each of the proposed aerodynamic design and the conventional full factorial optimum–the longest 10 flight times all belong to the aerodynamic optimum, while the shortest 10 all belong to the conventional full factorial optimum. I further discuss how ancillary engineering knowledge can be incorporated into thinking about–and teaching–experimental design. [ABSTRACT FROM AUTHOR]

Objective: Clinical care ratios are used to quantify and benchmark the activity of allied health professionals. This study aims to review previous recommendations and identify what variables may influence them. Method: Data was collected from the core allied health professions (audiology, nutrition and dietetics, occupational therapy, physiotherapy, podiatry, prosthetics and orthotics, psychology, social work and speech pathology) across eight Australian hospitals. Data for 113 staff who were casual or from smaller professions (audiology, podiatry, prosthetics and orthotics and psychology) were excluded due to insufficient numbers for analysis. The remaining data were analysed according to profession, seniority (tiers 1, 2 and 3) and employment status (permanent versus casual staff). A two-way ANOVA was performed to assess the association of clinical care ratios with tier, profession, employment status and gender. Results: Data from 1246 staff from the five larger professions at participating hospitals were analysed. There were no interactions between profession and gender (P = 0.185) or employment status (P = 0.412). The relationship between clinical care ratio and profession was modified by tier (interaction term, P = 0.014), meaning that differences in clinical care ratios between professions depended on the tier. Conclusion: This research has confirmed that clinical care ratios are a useful tool in workload management and determining staffing levels for allied health professionals. The recommendations from this research provide a starting point that can be finessed with reference to profession, model of care, workforce structure, governance and training requirements. This will lead to increased staff wellbeing and improved patient outcomes. What is known about this topic? Clinical care ratios are a useful tool to quantify, monitor and compare workloads of allied health professionals. What does this paper add? This paper confirms that clinical care ratios are a useful workforce planning tool and that when developing roles and models of care, clinical care ratios need to be incorporated into staffing requests and considered as part of workload management tools. What are the implications for practitioners? Clinical care ratios enable the quantification and benchmarking of direct and clinical support activity components of a workload and can be used when planning new services and reviewing current services. [ABSTRACT FROM AUTHOR]

Aim: This study aimed to investigate the feasibility of implementing a psychological first aid intervention for psychological distress, resilience capacity, quality and meaning of life among survivors affected by earthquake adversity in Northern Syria. Methods: A quasi‐experimental, pre‐posttest, two‐group research design was utilized. A convenience sample of 95 survivors (46 in the study group and 49 in the control group) was recruited for the psychological First Aid intervention at a 1:1 ratio. The psychological first aid intervention was delivered in 10 sessions, twice weekly, followed by 3‐month follow‐up. Results: A statistically significant improvement in the mean scores of resilience capacity, quality and meaning of life among survivors, along with a significant reduction in psychological distress, was registered among the study group compared with the control group. Conclusion: Our work verified the suitability of implementing psychological first aid following the catastrophic temblors which struck Northern Syria. Given that the psychological first aid intervention is grounded in psychological safety, cognitive reframing, mobilization of social support and installation of hope, the feasibility of its path following public health emergency, traumatic events or even a personal crisis can be favourable. Summary statement: What is already known about this topic? On 6 February 2023, a massive earthquake devastated large portions of war‐torn northwest Syria and southern Turkey, leaving millions in these regions battling to reconstruct their lives.In northwest Syria, strong aftershocks left more than 4500 people dead, injured hundreds more and demolished at least 10 000 structures.Disasters such as earthquakes can have a significant impact on the mental health and well‐being of those affected. Survivors may experience high levels of psychological distress and other negative mental health recovery outcomes.There is a need for psychologically supportive interventions such as the psychological first aid intervention to help survivors cope with the aftermath of such disasters.What this paper adds? A statistically significant improvement in the mean scores of resilience capacity, quality and meaning of life among survivors, along with a significant reduction in psychological distress, was registered among the study group compared to the control group.Our work verified the suitability of implementing the psychological first aid intervention following the catastrophic temblors which struck Northern Syria.The implications of this paper: Being ready for disasters is critical; health care professionals, including nurses, are one of the most frequently requested actors in disaster interventions.Nurses are an indispensable part in ascertaining the psychological repercussions of disasters on survivors, families and communities.Due to their training and professional experience, nurses can take the lead in reducing health‐threatening risks. [ABSTRACT FROM AUTHOR]

Aim: The aim of this study is to investigate the effectiveness of the bladder stimulation technique (BST) to collect urine samples from newborns and its effects on physiological parameters and comfort of the newborn. Design: This was a randomized controlled trial conducted in a NICU. A total of 64 newborns were divided into 2 groups: 32 newborns in the experimental group and 32 newborns in the control group. Methods: Newborns in the experimental group (EG) were subjected to the BST, and in the control group (CG), urine collection was via sterile urine bags, which is routine practice. Procedural success was defined as the collection of urine samples within 3 min of beginning the stimulation technique in the experimental group and of placing the sterile urine bag in the control group. Results: The success rate of the procedure in 3 min was 62.5% in the EG and 28% in the CG (P = 0.006, absolute difference: 35%, 95% confidence interval 27% to 42%, NNT: 3). According to the comparison of the overall mean COMFORTneo scale and pain and distress subscale scores at the 1‐ and 3‐min marks, there was a significant difference between the EG and CG (p < 0.05). The mean scores in the EG were higher than those in the CG. The mean oxygen‐saturation was significantly lower in the EG than in the CG (p < 0.05), and the increase in heart rate was significantly higher in the EG (p = 0.018). Conclusions: BST is a more successful method within 3 min for collecting urine samples from newborns compared to sterile urine bags. However, the newborns' comfort levels minimally decreased at 3 min, and they had moderate pain and distress, while the BST was being implemented. This increase in physiologic parameters was statistically significant but not clinically significant. Summary statement: What is already known about this topic? Urinary tract infection is a commonly diagnosed bacterial infection in young infants with fever. However, the symptoms of this infection are non‐specific, so urine samples are needed to accurately diagnose and exclude it.There are multiple methods available for collecting urine samples, each with its own advantages and disadvantages.The bladder stimulation technique is a noninvasive and efficient method for collecting urine samples. However, few studies have examined the pain and distress effects of this technique, and these studies have reported varying results. What this paper adds? This study found that bladder stimulation techniques were more effective than sterile urine bags in collecting urine samples within 3 min from newborns.The bladder stimulation technique led to decreased saturation and comfort levels, increased heart rate, and increased pain and distress in the newborns during urine sampling; these increases in physiologic parameters were statistically significant but not clinically significant. The implications of this paper: The bladder stimulation technique is an effective noninvasive method for quickly collecting urine samples.Considering the pain and distress‐increasing properties of the technique, it may be recommended before invasive interventions (bladder catheterization and suprapubic aspiration) when urine sample collection with urine bags is not possible; it can be used in cases where urgent urine collection is required. [ABSTRACT FROM AUTHOR]

Aim: The research was conducted to measure the effect of health literacy‐grounded web‐based education program on health literacy, nutrition and exercise behaviours in adolescents. Background: The increasing prevalence of obesity in adolescents is explained by a sedentary lifestyle and unhealthy diet. Health literacy is essential for adolescents to maintain their healthy behaviours. Methods: The research was conducted as a parallel group randomized controlled trial. The study was completed by 114 adolescents (experimental = 42, control = 72). The Personal Information Form, the Health Literacy Scale for School‐Age Children and the Nutrition and Exercise Subscales were used to collect data. A web‐based education program was implemented. Two‐way mixed design ANOVA with Bonferroni test was used to examine the group, time and group * time interaction of the measurements. Results: There was no statistically significant difference between the experimental and control groups regarding health literacy level, nutrition and exercise behaviours pre‐test mean scores (p > 0.05). In the post‐test, the mean scores of health literacy and nutrition behaviours in the experimental group were higher than the control group (p < 0.001). However, there was no significant difference in exercise behaviours (p > 0.05). The power and effect size in mean scores changes for health literacy (99.8%, η2 = 0.039) and nutrition (99.8%, η2 = 0.039) were moderate. Conclusion: The study concluded that health literacy‐grounded web‐based education program increased the health literacy levels of adolescents and improved their nutritional behaviours; however, there was no sufficient change in exercise behaviours. Summary statement: What is already known about the topic? The health literacy level of adolescents is inadequate or limited.Obesity and sedentary lifestyle are more common problems among adolescents.Interventions such as wellness coaching and health education were used to improve nutrition or exercise behaviours. What this paper adds? Health literacy‐grounded web‐based education program helps to increase the health literacy levels of adolescents.Health literacy‐grounded web‐based education program was found effective in improving nutrition behaviours. The implications of this paper: Nurses could implement web‐based education programs to prevent the negative consequences of unhealthy behaviours of adolescents.Nurses could provide opportunities to access health‐related information via web‐based interventions.Nurses could collaborate with school administrators to integrate nutrition and exercise behaviours into comprehensive and coordinated school‐based programs. [ABSTRACT FROM AUTHOR]

This paper describes a catalog of simultaneous observations of the Earth's magnetosheath by ESA's Cluster and NASA's MMS missions. The catalog is built from a visual inspection of summary plots provided by the two missions complemented by an analysis of high‐resolution magnetic field data. The catalog includes 117 events when Cluster 4 and MMS 4 crossed simultaneously the magnetosheath between January–April, 2017–2021. The dynamical and turbulent features of the magnetosheath are strongly influenced by θBn, the angle between the interplanetary magnetic field (IMF) and the shock normal direction. To facilitate such investigations, we also determine the bow shock geometry for each event based on two different approaches: (a) a minimum variance analysis of in‐situ magnetic field measurements, and (b) a geometrical approach which considers a bow shock model parameterized by OMNI data. A description of spacecraft trajectory during each event is also provided. Additional data describe the relative distances between Cluster 4 and MMS 4, a classification of each event as either quasi‐parallel or quasi‐perpendicular, and the distribution of events per magnetospheric flank. The time intervals for the Cluster ‐ MMS conjunctions are included in the catalog, as well as all associated figures and tables discussed in this paper are made available through an independent online data repository, and can be freely downloaded and used by any interested researcher. Key Points: We use in‐situ measurements from Cluster 4 and MMS 4 to build a catalog/database of simultaneous observations of the Earth's magnetosheathEmpirical models and minimum variance analysis of the magnetic field allow for an estimation of the bow‐shock orientation for each eventWe also provide details on the relative spacecraft position and an analysis of the bow‐shock geometry [ABSTRACT FROM AUTHOR]

Hot embossing is a manufacturing technique used to create microchannels on polymer substrates. In recent years, microchannel fabrication technology based on hot embossing has attracted considerable attention due to its convenience and low cost. A new evaluation method of microchannels, as well as an approach to obtaining optimal hot embossing conditions based on the Taguchi method, is proposed in this paper to fabricate precise microchannels for a flexible proton-exchange membrane fuel cell (PEMFC). Our self-made hot embossing system can be used to fabricate assorted types of micro-channel structures on polymer substrates according to various applications, whose bottom width, top width, height and cross-sectional area vary in the aims of different situations. In order to obtain a high effective filling ratio, a new evaluation method is presented based on the four parameters of channel structures, and the Taguchi method is utilized to arrange three main factors (temperature, force and time) affecting the hot embossing in orthogonal arrays, quickly finding the optimal condition for the embossing process. The evaluation method for microchannels proposed in this paper, compared to traditional evaluation methods, incorporates the area factor, providing a more comprehensive assessment of the fabrication completeness of the microchannels. Additionally, it allows for the quick and simple identification of optimal conditions. The experimental results indicate that after determining the optimal embossing temperature, pressure and time using the Taguchi method, the effective filling rate remains above 95%, thereby enhancing the power density. Through variance analysis, it was found that temperature is the most significant factor affecting the hot embossing of microchannels. The high filling rate makes the process suitable for PEMFCs. The results demonstrate that under optimized process conditions, a self-made hot embossing system can effectively fabricate columnar structure microchannels for PEMFCs. [ABSTRACT FROM AUTHOR]

Discussion of the use of computer-based information retrieval systems in schools focuses on three paper and pencil experiments conducted in the United Kingdom that were designed to investigate how 9- to 11-year-olds organized and retrieved information from four organizational structures: lists, hierarchies, networks, and tables. (18 references) (LRW)

Nowadays, the trend to benefit from environmentally friendly waste and recycle it instead of incineration processes that can cause pollution in the environment to have a clean and green environment that is free from pollution and can work for a long time without consumption and damage. This study is designed to manufacture prosthetics limbs from PMMA (polymethyl methacrylate) reinforced with different weight percentages of waste paper layers (0%, 3%, 6%, 9%, and 12%) by the "hand lay" method. The tensile, flexural, impact, compression, and hardness of these composites are tested before and after adding weight percentages waste paper layers to determine the mechanical properties behavior. The average values of all the samples are collected and analyzed by one-way analysis of variance (ANOVA) to interpret the results. When discussing the results of mechanical tests, it is found that the addition (12%-waste paper layers) to (PMMA) increased the average values (tensile, flexural, impact, compression, and hardness) by 142.1%, 532.3%, 146%, 99.2%, and 6.37%; respectively, compared to the mean values of other samples. It is clear from this work there is an improvement in the properties of PMMA after strengthening with waste paper layers. [ABSTRACT FROM AUTHOR]

With the rapid development of pure electric vehicles, how to improve the range has become the focus of research. Due to the large shell mass of the battery pack shell (BPE), it is necessary to optimize its structure in turn. In this paper, the BPE model was reconstructed by improving the upper shell material and adding reinforcements following the direction of the leaf vein fibers of the Magnolia Grandiflora. A quasi-Monte Carlo method based on Sobol sequences and a Latin hypercube design with variance sensitivity analysis was used to determine the seven design variables. The 122 data sets were trained and predicted using the basic gradient descent algorithm combined with the conjugate direction method, and the predictions were compared with static mechanical simulations for sharp cornering conditions on bumpy roads. The results showed that the BPE weight reduction ratio was 19.5%, and the maximum stress reduction ratio was 27.49%, and the displacement reduction ratio was 29.29% respectively, which satisfied the material requirements. It had a 20.88% increase in first-order mode frequency, which effectively prevented resonance. [ABSTRACT FROM AUTHOR]

Background: The analysis of large-scale gene expression data is a fundamental approach to functional genomics and the identification of potential drug targets. Results derived from such studies cannot be trusted unless they are adequately designed and reported. The purpose of this study is to assess current practices on the reporting of experimental design and statistical analyses in gene expression-based studies. Methods: We reviewed hundreds of MEDLINE-indexed papers involving gene expression data analysis, which were published between 2003 and 2005. These papers were examined on the basis of their reporting of several factors, such as sample size, statistical power and software availability. Results: Among the examined papers, we concentrated on 293 papers consisting of applications and new methodologies. These papers did not report approaches to sample size and statistical power estimation. Explicit statements on data transformation and descriptions of the normalisation techniques applied prior to data analyses (e.g. classification) were not reported in 57 (37.5%) and 104 (68.4%) of the methodology papers respectively. With regard to papers presenting biomedical-relevant applications, 41(29.1 %) of these papers did not report on data normalisation and 83 (58.9%) did not describe the normalisation technique applied. Clustering-based analysis, the t-test and ANOVA represent the most widely applied techniques in microarray data analysis. But remarkably, only 5 (3.5%) of the application papers included statements or references to assumption about variance homogeneity for the application of the t-test and ANOVA. There is still a need to promote the reporting of software packages applied or their availability. Conclusion: Recently-published gene expression data analysis studies may lack key information required for properly assessing their design quality and potential impact. There is a need for more rigorous reporting of important experimental factors such as statistical power and sample size, as well as the correct description and justification of statistical methods applied. This paper highlights the importance of defining a minimum set of information required for reporting on statistical design and analysis of expression data. By improving practices of statistical analysis reporting, the scientific community can facilitate quality assurance and peer-review processes, as well as the reproducibility of results. [ABSTRACT FROM AUTHOR]

This paper proposed a hybrid feature extraction algorithm based on local mean decomposition (LMD), which has better solved the existing problems of low classification performance and adaptability limitation. LMD is employed to decompose the electroencephalogram (EEG) signal into multiple components, and then, the hybrid features based on instantaneous energy, fuzzy entropy, and mathematical morphological features are extracted on specific components, and the optimal feature combination is selected by analysis of variance (ANOVA). Finally, the classification result is output by the linear discriminant analysis (LDA) classifier. The results show that the maximum accuracy of the subjects in Data Set III of BCI‐II by the method in this paper is 92.14%, and the maximum mutual information value is 0.8. The number of novel features used in this paper is small, and the complexity of the algorithm is reduced. It can adaptively select effective features according to individual differences and has good robustness. [ABSTRACT FROM AUTHOR]

Background: The use of e‐exams in higher education is increasing. However, the role of student diversity in the acceptance of e‐exams is an under‐researched topic. In the current study, we considered student diversity in terms of three sociodemographic characteristics (age, gender, and second language) and three dispositional student characteristics (computer anxiety, test anxiety, and technology openness). Objectives: The main objective of this study was to investigate the relationship between student diversity and acceptance of e‐exams. Methods: Our research combined cross‐sectional analyses (N = 1639) with data from a natural experiment on the introduction of e‐exams versus the established paper‐pencil exams (N = 626) and used both self‐report and institutional data. Sociodemographic and dispositional characteristics were indirectly related to pre‐exam acceptance via expectancy variables from the Technology Acceptance Model framework. Results and Conclusions: Comparisons of post‐exam acceptance showed that practical experience with the e‐exam led to a significant increase in e‐exam acceptance, and that students with low openness toward technology particularly benefited from this effect. Students' exam performance (i.e., grades) was unrelated to the exam format or their pre‐exam acceptance of the e‐exam format, and this was true across students' sociodemographic and dispositional characteristics. Takeaway: Student diversity plays a role in e‐exam acceptance, but its influence is mitigated by first‐hand experience with e‐exams. The practical implications for higher education institutions aiming to implement e‐exams are discussed. Lay Description: What is already known about this topic: The use of e‐exams in higher education is increasingThe role of student diversity for e‐exam acceptance is unclearTechnology acceptance is predicted by expectancies towards new system What this paper adds: We investigated students' sociodemographic and dispositional diversityDiversity predicted e‐exam acceptance via the expectanciesIn a natural experiment, first‐hand experience increased e‐exam acceptanceNo difference between performance in e‐exams and paper‐pencil‐exams found Implications of the study findings for practitioners: Higher education institutions implementing e‐exams should consider diversitySupport for older students and students with low technology openness neededNo student groups systematically disadvantaged by e‐exam implementationPractice rooms can increase experience with new system before exam [ABSTRACT FROM AUTHOR]

The authors assessed the utility and cost-effectiveness of using a World Wide Web-based questionnaire in a large prospective cohort study, the Black Women's Health Study (BWHS). In 1995, 59,000 African-American women were recruited into the BWHS through a paper questionnaire. Follow-up paper questionnaires have been mailed every 2 years since then. During the 2003, 2005, and 2007 questionnaire cycles, participants were given the option of completing a Web-based questionnaire. The cost of developing and processing a returned paper questionnaire was 4 times that of a returned Web questionnaire, primarily because of return postage costs and greater processing time for paper questionnaires. The proportion of respondents who completed a Web questionnaire doubled from 2003 to 2007, from 10.1% to 19.9%, but the characteristics of those completing the Web questionnaire remained the same. Web response was greatest at younger ages (20.9% of those aged <30 years) and declined with age to 3.6% among women aged 60 years or more. Web questionnaires were filled out more completely than paper questionnaires, regardless of the sensitivity of a question. The use of a Web questionnaire in the BWHS resulted in cost savings and more complete responses. Although there are advantages to using a Web questionnaire, the use of multiple means of soliciting questionnaire responses is still needed. [ABSTRACT FROM PUBLISHER]

Nursing faculty perceptions of teaching undergraduate nursing students documentation skills using either paper-based or electronic health record systems were explored in this study. Twenty-five nursing faculty in a large urban public school of nursing were interviewed using a 13-item survey questionnaire. Responses were analyzed using the constant comparative method, and four major themes arose: teaching strategies; learning from experts; road from novice to expert; and legal, ethical, and institutional issues. Results demonstrate how faculty overcome myriad obstacles encountered while teaching clinical documentation processes. Self-efficacy theory, with its emphasis on knowledge, skills, and social context, describes how faculty are modeling behaviors necessary to succeed during this transition from paper to electronic documentation. The school of nursing is integrating the findings from this research to further informatics integration across the curricula, and ongoing research is planned to investigate issues of self-efficacy and student and clinical staff perceptions of teaching-learning clinical documentation. [ABSTRACT FROM AUTHOR]

The current research paper aimed to investigate the current research practices in Higher Education Institutions (HEIs) in Khyber PakhtunKhwa (KP). The study was Mixed Methods Research (MMR) and thereby convergent Parallel design was used. A sample 254 participants were taken out of 695 individuals through (Yamane, 1967) formula. A selfdeveloped questionnaire, checklist and semi-structure interview were developed. Analysis of variance (ANOVA) was used as inferential statistics to analysis the quantitative data while thematic analysis was used to analyze the qualitative data. The result of study indicates that collaborative research environment in the HEIs. HEC approved supervisors available in the institutions. Thesis evaluation process found transparent but lengthy. The study found that paper publication is one of the difficult tasks for the teachers and students. [ABSTRACT FROM AUTHOR]

Important emerging measures of academic impact are article download and citation rates. Yet little is known about the influences on these and ways in which academics might manage this approach to dissemination. Three groups of papers by academics in a center for speech-language-science (available through a university repository) were compared. The first group of target papers were blogged, and the blogs were systematically tweeted. The second group of connected control papers were nonblogged papers that we carefully matched for author, topic, and year of publication. The third group were papers by different staff members on a variety of topics-Unrelated Control Papers. The results suggest an effect of social media on download rate, which was limited not just to Target Papers but also generalized to Connected Control Papers. Unrelated Control Papers showed no increase over the same amount of time (main effect of time, F(1,27) = 55.6, p < .001); Significant Group×Time Interaction, F(2,27) = 7.9, p = .002). The effect on citation rates was less clear but followed the same trend. The only predictor of the 2015 citation rate was downloads after blogging ( r = 0.450, p = .012). These preliminary results suggest that promotion of academic articles via social media may enhance download and citation rate and that this has implications for impact strategies. [ABSTRACT FROM AUTHOR]

Purpose – Quantitative methods, especially statistical methods, play an increasingly important role in research of library and information science (LIS). For different journals, the uses of statistical methods vary substantially due to different journal scopes and aims. The purpose of this paper is to explore the characteristics of statistical methodology uses in six major scholarly journals in LIS. Design/methodology/approach – Research papers that used statistical methods from the six major journals were selected and investigated. Content analysis method, descriptive statistical analysis method, and temporal analysis method were used to compare and analyze statistical method uses in research papers of the investigated journals. Findings – The findings of this study show that there was a clear growth trend of statistical method uses in five of the investigated journals; statistical methods were used most in The Journal of the Association for Information Science and Technology and Information Processing & Management; and the top three most frequently used statistical methods were t-test, ANOVA test, and χ2-test. Originality/value – The findings can be used to better understand the application areas, patterns, and trends of statistical methods among the investigated journals and their statistical methodology orientations in research studies of LIS. [ABSTRACT FROM AUTHOR]

This study compared the effects of chunking sentences on the retention and comprehension of two groups of learning disabled high school students, who received chunked reading via computer assisted instruction (CAI) or traditional methods. Both experimental groups performed better on the posttest than the control group, who received CAI without chunking. (11 references) (LRW)

Describes study that investigated the effects of computerized test administration on undergraduates' responses to the Minnesota Multiphasic Personality Inventory (MMPI), and discusses methodological considerations important in evaluating the sensitivity of personality inventories in different administration formats. Results analyze the effects of order of administration, format of administration, and repeated testing. (54 references) (Author/LRW)

Purpose: This paper aims to determine the demand category and level of government and investors in public–private partnership (PPP) projects. It emphasizes the importance of meeting the demands of stakeholders and controlling the unreasonable demands. This study aims to improve the demand management of stakeholders in the PPP project and lay a foundation for the research on behavior based on the motivation theory. Design/methodology/approach: This paper opted for a questionnaire survey to collect data based on indicators identified through literature. The participants come from the government and private sector (investors, contractors, operators, etc.) in China PPP Lecture Hall. The reliability, validity and variance analyses are used to test the reliability of data. Factor analysis and entropy method are used to determine demand categories and weights. Findings: The government's 14 demands are divided into four groups: satisfy public activities, self-interest, responsibility and relief financial pressure; 6 investor's demands are divided into development ability and satisfy social activities. The self-interest of government is higher than that of the publicity in PPP projects; investor's social reputation is most important, it is a foundation for obtaining external resources and achieving enterprise development. Research limitations/implications: Because of the chosen research approach, the demand indexes cannot be exhausted. Therefore, researchers are encouraged to enrich relevant contents further. Practical implications: This paper includes implications for a targeted demand control mechanism and for managing the unreasonable demand. Originality/value: This paper comprehensively identifies the demand hierarchy of the government and investors, and provides the theoretical basis for the target management of stakeholders. [ABSTRACT FROM AUTHOR]

With the progressive development of new energy technologies, high-power lithium batteries have been widely used in ship power systems due to their high-power density and low environmental pollution, and they have gradually become one of their main propulsion energy sources. However, the large-scale deployment of lithium batteries has also brought a series of safety problems to ship operations, especially the battery internal short circuit (ISC). Battery ISC faults are very hidden and unpredictable at the initial stage and often fail to be detected in time, ultimately leading to overheating, fire or even an explosion of the ship's power system. Based on this, this paper proposes a fast and accurate method for early-stage ISC fault location and detection of lithium batteries. Initially, voltage variations across the lithium battery packs are quantified using curvilinear Manhattan distances to pinpoint faulty battery units. Subsequently, the localized characteristics of voltage variance among adjacent batteries are leveraged to detect an early-stage ISC fault. Simulation results indicate that the proposed method can quickly and accurately locate the position of 5 Ω, 10 Ω and 15 Ω ISC faulty batteries within the battery pack, as well as detect the abnormal batteries in a timely manner with considerable sensitivity and reliability. [ABSTRACT FROM AUTHOR]

The new generation of pavement technology with the goal of longevity is an important supporting technology that can promote the achievement of sustainable development of high-speed roadways. To further investigate the evolution trend of long-life pavement performance, this paper paved experimental sections to explore the correlations between pavement structure combinations and pavement performances. This paper presented four experimental sections with different pavement structures, asphalt concrete layer thicknesses, and pavement materials. Then, this paper analyzed the effects of the seasonal factors, pavement structure, and lanes on the deflection value and rut depth from three dimensions by the Pearson correlation coefficient (PCC). Finally, this paper used the analysis of variance (ANOVA) to analyze the relationships between the layer thickness of various materials in the pavement structure and the pavement performances, including the deflection value, international roughness index (IRI), texture depth (TD), British Pendulum Number (BPN), sideway force coefficient (SFC), rut depth, and disease area. The results showed that the seasonal factors significantly affected the deflection values of pavement structures with PCCs of 0.61, 0.72, 0.53, and 0.78. The high temperatures increased the average deflection values by 22.85%, 72.88%, 77.61%, and 88.13%, respectively. Under the influence of high temperature in summer and traffic loads, the increased ranges of average rut depth were -0.2%, 4.89%, 9.56%, and 7.31%, respectively. The results of ANOVA showed that the pavement structure type and thickness of each structural layer significantly affected the deflection value, and there also was a strong correlation between the pavement structure type, thickness, BPN, and SFC with p-values less than 0.05. Increasing the thickness of the asphalt surface was beneficial for reducing the area of defects, while laying the semi-rigid base layer was beneficial for maintaining the deflection value and rut depth at a lower level. [ABSTRACT FROM AUTHOR]

This study contributes to the diversity literature by probing whether diversity papers are cited as frequently as nondiversity papers in management and industrial/organizational (I/O) psychology journals. Based on the stigma‐by‐association theory, I argue that as a result of their association with minority groups, diversity papers may be devalued and thus "othered" by scholars. Using a citation analysis of 46,930 papers published in 29 peer‐reviewed management and I/O psychology journals, I present empirical evidence in Study 1 that diversity papers were cited significantly less frequently than nondiversity papers. The authors' gender and institutional prestige, journal tier and domain, and year of publication were not moderators. In Study 2, I used a scenario experiment to demonstrate the stigma‐by‐association effect. The authors' gender demonstrated a significant moderating effect in this experiment. [ABSTRACT FROM AUTHOR]

Cordia trichotoma (Vell.) Arrab. ex Steud. is a forest species native to Brazil, naturally propagated by seeds, whose quality assessment may be underestimated by the use of inappropriate methods for conducting the germination test. Given the potential use of this plant and the importance of conserving native species, the present work aimed to study parameters for conducting the germination test in louro-pardo seeds, during three consecutive years of evaluations. For this purpose, temperatures (20, 25 and 30 °C) and substrates (blotter paper, filter paper, sand and vermiculite) were tested in seeds collected in different crop seasons. The tests were carried out under a completely randomized experimental design, with four replications, in a factorial scheme for the germination test (temperatures x substrates), with the data obtained being subjected to analysis of variance and means compared by Tukey's test (p = 0.05). Germination percentage and speed index were determined, and seed health analysis was performed. It is concluded that the germination test for louro-pardo seeds should be carried out between vermiculite, at 30 °C, without light supply, with the first count carried out at 26 days and the last count at 48 days after setting up the test. [ABSTRACT FROM AUTHOR]

This paper reports the results of a case study which was undertaken to understand the sources and costs of process variation at a manufacturing facility of a major paper producer. Sources of process variation that were thought to be cost drivers by managers (based on interviews) were empirically evaluated using an Analysis of Variance (ANOVA) model. This study finds that a) crews, b) shifts, c) product grades, d) rest interval between shifts, e) grade changes, f) machine downtime, g) changes in shift, and h) various interaction effects all are significant sources of variation in product quality. From these variables, this study develops a heuristic to improve the manufacturing process with regard to product quality. [ABSTRACT FROM AUTHOR]

The counting of papers and citations is fundamental to the assessment of research productivity and impact. In an age of increasing scientific collaboration across national borders, the counting of papers produced by collaboration between multiple countries, and citations of such papers, raises concerns in country-level research evaluation. In this study, we compared the number counts and country ranks resulting from five different counting methods. We also observed inflation depending on the method used. Using the 1989 to 2008 physics papers indexed in ISI's Web of Science as our sample, we analyzed the counting results in terms of paper count (research productivity) as well as citation count and citation-paper ratio (CP ratio) based evaluation (research impact). The results show that at the country-level assessment, the selection of counting method had only minor influence on the number counts and country rankings in each assessment. However, the influences of counting methods varied between paper count, citation count, and CP ratio based evaluation. The findings also suggest that the popular counting method (whole counting) that gives each collaborating country one full credit may not be the best counting method. Straight counting that accredits only the first or the corresponding author or fractional counting that accredits each collaborator with partial and weighted credit might be the better choices. [ABSTRACT FROM AUTHOR]

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The present study introduces a quadtree decomposition approach for assessing surface structures. The calculated quadtree variables like the number of blocks (nQT), the mean block size (mQT) and the standard deviation of the block sizes (sQT) seem to be suitable surface descriptors for quantifying the structural changes of the paper surface due to, e.g. production or printing conditions. The graphical representation of the quadtree decomposition is also intuitive and easy to interpret, thus giving a unique opportunity to observe and track structural changes locally. [ABSTRACT FROM AUTHOR]

Discusses the multivariate extreme value theory that emerged in several studies in the 1950s during the popularity of asymptomatic distributions in probability. Examination on the mathematical abstraction of the formulation of the theory; Discovery of the deficiencies of this appraoch during the 1990s; Information on proposed correction to the deficiencies of the approach.

A novel chromogenic reagent, 2-(2-sulfo-4-acetylphenylazo)-7-(2,4,6-trichlorophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonic acid 1, was prepared by diazo coupling of 4-acetylaniline-2-sulfonic acid and 2,4,6-trichloroaniline to chromotropic acid through –N=N– groups. Based on this reagent, a simple, sensitive and selective spectrophotometric method was developed for the determination of lead. In 0.20 M phosphoric acid medium, lead reacts with 1 to form a 1:2 blue complex with an absorption maximum of 654 nm. Beer’s law is obeyed in the range of 0–0.6 mg L-1 of lead. The apparent molar absorptivity is 1.25 × 105 L mol-1 cm-1. The detection limit and quantification limit were found to be 0.63 µg L-1 and 2.1 µg L-1, respectively. The relative standard deviation for eleven replicate measurements was of 2.6%. The interference of foreign ions was also investigated. All the other foreign ions studied did not interfere with lead determination except for Ca(II) and Ba(II). The interference caused by Ca(II) and Ba(II) can be eliminated by prior extraction of lead with potassium iodide-methylisobutylketone (KI-MIBK). The proposed method was applied to the determination of lead in certified samples with satisfactory results. [ABSTRACT FROM AUTHOR]

This study explores the trends of chatbots in education studies by conducting a literature review to analyze relevant papers published in the Social Science Citation Index (SSCI) journals by searching the Web of Science (WoS) database. From the analysis results, it was found that the United States, Taiwan and Hong Kong are the top three contributing countries or regions. In addition, most studies adopted quantitative methods in their research design, such as ANOVA (Analysis of variance), descriptive statistics, t test, and correlation analysis. ANCOVA (Analysis of covariance) was the most frequently adopted approach for comparing the performances or perceptions of different groups of students. From the analysis results, the greatest proportion of studies adopted guided learning, followed by no learning activities. It was determined that the studies related to chatbots in education are still in an early stage since there are few empirical studies investigating the use of effective learning designs or learning strategies with chatbots. This implies much room for conducting relevant research to drive innovative teaching in terms of improving the learning process and learning outcomes. Finally, we highlight the research gaps and suggest several directions for future research based on the findings in the present study. [ABSTRACT FROM AUTHOR]

Soil moisture (SM) is a vital climate variable in the interaction process between the Earth's atmosphere and land. However, global soil moisture products from various satellite missions and land surface models are affected by inherently discontinuous observations and coarse spatial resolution, which limits their application at fine spatial scales. To address this problem, this paper integrates three diverse types of datasets from in situ, satellites, and models through Spherical cap harmonic analysis (SCHA) and Helmert variance component estimation (HVCE) to produce 1 km of spatio-temporally continuous SM products with high accuracy. First, this paper eliminates the bias between different datasets and in situ sites and resamples the datasets before data fusion. Then, multi-source SM data fusion is performed based on the SCHA and HVCE methods. Finally, this paper evaluates the fused products from three aspects, including the performance of representative sites under different climate types, the overall performance of validation sites, and the comparison with other products. The results show that the fused products have better performance than other SM products. In the representative sites, the minimal correlation coefficient (R) of the fused products is above 0.85, and the largest root mean square error (RMSE) is below 0.040 m3 m−3. For all validation sites, the R and RMSE of the fused products are 0.889 and 0.036 m3 m−3, respectively, while the R for other products is below 0.75 and the RMSE is above 0.06 m3 m−3. In comparison to other SM products, the fused products exhibit superior performance, generally align more closely with in situ measurements, and possess the ability to accurately and finely capture the spatial and temporal variability of surface SM. [ABSTRACT FROM AUTHOR]

In the ever-evolving landscape of digital marketing, the role of social media in shaping effective communication strategies is paramount. This research paper delves into the world of data-driven insights to examine how social media channels contribute to the success of digital communication efforts. This paper focuses on exploring the multifaceted aspects of social media's impact on brand visibility, engagement, and customer interaction. The data was analyzed quantitatively using descriptive statistics while Analysis of Variance was used to establish associations between variables. The study revealed that major factors influencing the social media's effectiveness in digital communication are Content, Customer Interaction and Social Media metrics. As a result of comprehensive analysis, this research paper not only provides valuable insights into the current state of social media's effective-ness in digital communication but also offers practical recommendations for businesses looking to optimize their social media strategies. In an era where data reigns supreme, this research findings serve as a guide for harnessing the power of social media as a dynamic and influential tool in the digital communication arsenal. [ABSTRACT FROM AUTHOR]

Aim: This study examined the preliminary effects of a nurse‐led self‐management education and support programme on the self‐management behaviours and quality of life among people with type 2 diabetes in Western Ethiopia. Methods: A pilot randomized controlled trial was conducted between January and August 2021. Participants were recruited in the hospital and randomly assigned to the control arm to continue usual care (n = 38) or the intervention arm to receive usual care and the diabetes self‐management education and support programme (n = 38) in the community. Self‐management behaviours and quality of life were assessed using a 10‐item summary of diabetes self‐care activity (expanded) scale and a 34‐item diabetes quality of life measure, respectively, at baseline and 2 months after follow‐up. Generalized estimating equation models were used to examine the preliminary effects of the programme on the outcomes. Results: Preliminary results indicated that the programme outperformed usual care in self‐management practise, with large effect sizes immediately postintervention and at 2 months after the intervention, and quality of life at 2 months after the intervention. Conclusion: A nurse‐led diabetes self‐management education and support intervention, including the families of people with diabetes, may be an option to boost the self‐management practise and quality of life of patients with diabetes. Summary statement: What is already known about this topic? Family‐supported diabetes self‐management education intervention produced inconclusive effects on self‐management behaviour and quality of life. What this paper adds? A social‐cognitive theory‐guided, culture‐tailored, and community‐based diabetes self‐management education and support programme resulted in a preliminary effect on improving self‐management behaviour and quality of life.A nurse‐led diabetes self‐management education and support programme intervention, including the families of patients, may be an option to boost the self‐management practise and quality of life of people with diabetes. The implications of this paper: Culturally tailored diabetes self‐management education and support programme could be an option to improve self‐management behaviour and enhance quality of life.Community‐based nurse‐delivered diabetes self‐management education and support can improve self‐management behaviours and enhance quality of life in 2 months duration. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this paper is to conceptualise a research study to examine leadership as a relational concept between leaders and followers. The context is within surgical practice examining how motivated consultant surgeons are to lead junior doctors and which type of leadership style they use. From a follower perspective, the motivation of junior doctors will be explored, and their leadership preferences will be correlated with those of the actual style of consultant surgeons. Design/methodology/approach: In this paper, the authors provide a detailed description of the methods for an international quantitative research study, exploring sequentially how motivated consultant surgeons are to lead and how leadership styles impact on the motivation of junior doctors. The objectives, method and data collection of this study are explained, and the justification for each method is described. Findings: The findings for this outline study illustrate how critical it is to redefine leadership as a relational concept of leader and follower to ensure adequate support is provided to the next generation of consultant surgeons. Without consideration of the relational model of leadership, attrition will continue to be a critical issue in the medical workforce. Research limitations/implications: The research limitations are that this is a proposed quantitative study due to the need to collect a large sample of data from surgeons across the UK, Egypt and Germany. This research will have immense implications in developing new knowledge of leadership as a relational concept in medicine and healthcare. This study additionally will impact on how leadership is conceptualised in the curriculum for specialist surgical practice. Practical implications: The practical implications are that relational leadership is supportive of generating a supportive leadership culture in the workplace and generating more effective teamwork. Originality/value: To the best of the authors' knowledge, this is the first study of its kind to look at a relational model of leadership in surgical practice between consultant surgeons and surgical trainees. This study will also identify any specific country differences between the UK, Germany and Egypt. [ABSTRACT FROM AUTHOR]

This paper introduces a novel type of floating machine gun that can be simplified as a self-balancing two-degree-of-freedom mechanical system with distinct vibration characteristics. The model accounts for intricate motion patterns and encompasses numerous potential influencing factors. Multifactor combination optimization of the system represents a pressing engineering challenge. After establishing a simulation model for the machine gun and validating it experimentally, seven factors were chosen as optimization variables. The maximum recoil displacement of the inner receiver (MRD) and the firing rate were chosen to be indicators. Orthogonal combinations and variance analyses were used, and the effects of multiple factors were analyzed using SPSS software; these processes led to a determination of the optimal combination. The results indicated that the piston cylinder pressure, the bi-directional buffer spring energy storage, and the inner receiver mass significantly affected the MRD. Furthermore, the automaton mass and the reset spring energy storage were found to substantially affect the firing rate. Careful analysis of the variance results facilitated the determination of the optimal combination of parameter values. Remarkably, the optimal combination chosen resulted in an MRD reduction of approximately 20.2% and a firing rate increase of approximately 26.6%. [ABSTRACT FROM AUTHOR]

Tensor product smoothers are frequently used to include interaction effects in multiple nonparametric regression models. Current implementations of tensor product smoothers either require using approximate penalties, such as those typically used in generalized additive models, or costly parameterizations, such as those used in smoothing spline analysis of variance models. In this paper, I propose a computationally efficient and theoretically precise approach for tensor product smoothing. Specifically, I propose a spectral representation of a univariate smoothing spline basis, and I develop an efficient approach for building tensor product smooths from marginal spectral spline representations. The developed theory suggests that current tensor product smoothing methods could be improved by incorporating the proposed tensor product spectral smoothers. Simulation results demonstrate that the proposed approach can outperform popular tensor product smoothing implementations, which supports the theoretical results developed in the paper. [ABSTRACT FROM AUTHOR]