Numerical Construction Research Articles

The environment is somewhat alike for different adaptive motivations: Machine learning reveals optimal motivational contexts involve collective support of parents, teachers, and peers

Achievement motivation is fundamental for human flourishing. While numerous adaptive motivational constructs have been proposed, they are often examined in isolation without considering their shared contextual roots. To identify the contextual factors underlying different forms of adaptive achievement motivation, we conducted comprehensive analyses by integrating a global student assessment dataset (n = 77,068 middle-school students across 19 countries, Mage = 15.79). We conducted a literature review and identified 27 potential predictors theoretically and empirically related to achievement motivation, including immediate contextual factors available in the dataset and distal contextual factors available from varying sources. Results from machine learning analyses showed convergent patterns of the contextual predictors for adaptive motivation (self-efficacy, learning goals, and task mastery orientation). Specifically, the optimal environment for adaptive motivation is characterized by the collective positive influence from parents, teachers, and peers, rather than depending on one exclusively. In comparison, the pattern of other less adaptive motivation constructs (fixed mindsets, performance goals, and fear of failure) is idiosyncratic. These findings provide synthesized evidence consolidating achievement motivation research, highlighting the shared contextual foundations for various adaptive motivations. This integrative approach clarifies that the optimal motivational contexts involve the collective social support of parents, teachers, and peers.

Implementation of magnetic compressional effects at arbitrary wavelength in the global version of GENE

The global tokamak code GENE has been extended including the effect of magnetic compression caused by B1,|| turbulent fluctuations of the magnetic field parallel to the equilibrium one. This paper outlines the basic structure of the algorithm, valid at arbitrary wavelengths of the gyrokinetic fluctuations, with emphasis on the numerical construction of the so-called “gyrodisk-integral” operators necessary for the model. The numerical implementation is successfully verified against radially local simulations, recovering excellent agreement. Global tokamak simulations are presented as well. The upgrade enables studying a large variety of new physical scenarios at high plasma-β, such as kinetic ballooning modes, MHD-like modes or the interaction of B1,|| with fast particle modes, reducing the gap between gyrokinetic models and physically realistic systems.

Heritage Diplomacy, Neo-Ottomanism, and a Local Quest for a New Place of Worship: The Politics of Mosque Building in Batumi, Georgia

ABSTRACT Over the past few decades, Turkey has funded numerous construction and building rehabilitation initiatives in foreign countries. Amidst such efforts, this article scrutinises the implications of Turkey’s heritage diplomacy tied to Ottoman architecture and how it has the potential to overshadow the desires of local populations. It points to one such case in Batumi, Georgia, where a replica of the 1868 Aziziye Mosque was proposed as a part of Georgia-Turkey cross-border heritage exchanges in the 2010s. Here, Turkey’s fostering of the project exacerbated local Muslim Georgian efforts to construct a mosque of their own in the city. The case demonstrates how heritage diplomacy can land poorly, shining light on a range of broader domestic impacts to urban planning and national identity, electoral politics and community social cohesion. Instead of seeing local Muslims as passive bystanders, the article demonstrates how they asserted their rights, building a temporary open-air mosque and redirecting the focus back towards their particular needs. The findings are based on a long-term study of the politics of urban development in Batumi using qualitative methods. They contribute to a growing body of scholarship in critical heritage studies, highlighting connections to public policy, diplomatic relations, and religious activism.

Development of a Golden Gate Assembly-Based Genetic Toolbox for Lactiplantibacillus plantarum and Its Application for Engineering Monoterpenoid Biosynthesis.

Lactiplantibacillus plantarum is a food-grade lactic acid bacterium widely used in the food and beverage industry. Recently, this probiotic organism has been applied as a biofactory for the production of pharmaceutical and food-related compounds, but existing promoters and expression vectors for the genetic engineering of L. plantarum rely on inefficient cloning strategies and are usually not well-characterized. We therefore developed a modular and standardized Golden Gate Assembly-based toolbox for the de novo assembly of shuttle vectors from Escherichia coli to L. plantarum. A collection of the most relevant genetic parts, e.g., different origins of replication and promoters, was incorporated in our toolbox and thoroughly characterized by flow cytometry and the fluorescence assay. Standardized fusion sites allow combining the genetic part freely into a plasmid in one step. This approach allows for the high-throughput assembly of numerous constructs in a standardized genetic context, thus improving the efficiency and predictability of metabolic engineering in L. plantarum. Using our toolbox, we were able to produce the aroma compounds linalool and geraniol in L. plantarum by extending its native mevalonate pathway with plant-derived monoterpenoid synthases.

A New Notion of Convergence Defined by The Fibonacci Sequence: A Novel Framework and Its Tauberian Conditions

The Fibonacci sequence has broad applications in mathematics, where its inherent patterns and properties are utilized to solve various problems. The sequence often emerges in areas involving growth patterns, series, and recursive relationships. It is known for its connection to the golden ratio, which appears in numerous natural phenomena and mathematical constructs. In this research paper, we introduce new concepts of convergence and summability for sequences of real and complex numbers by using Fibonacci sequences, called Δ-Fibonacci statistical convergence, strong Δ-Fibonacci summability, and Δ-Fibonacci statistical summability. And, these new concepts are supported by several significant theorems, properties, and relations in the study. Furthermore, for this type of convergence, we introduce one-sided Tauberian conditions for sequences of real numbers and two-sided Tauberian conditions for sequences of complex numbers.

A psychological mechanism for the development of anxiety.

Although numerous behavioral constructs have been proposed to account for anxiety disorders, how these disorders develop within an individual has been difficult to predict. In this perspective, I selectively review clinical and experimental evidence suggesting that avoidance (i.e., safety) behavior increases beliefs of threat or fear. The experimental evidence has been replicated numerous times, with different parameters, and shows that when human participants emit avoidance responses in the presence of a neutral stimulus, they later show heightened expectations of threat in the presence of the neutral stimulus. I interpret these findings as resulting from prediction errors as anticipated by the Rescorla-Wagner model, although other animal learning theories can also predict the phenomenon. I discuss some implications and offer a few novel predictions. The analysis presented here sheds light on a phenomenon of theoretical and clinical relevance which is accommodated by basic associative learning theory. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Unicortical Button Fixation Provide Higher Strength Compared with Transosseous Repair for Subscapularis Tendon in Total Shoulder Arthroplasty

Subscapularis tendon (SSc) dysfunction following total shoulder arthroplasty (TSA) results in poor functional outcomes. There have been numerous SSc repair constructs tested biomechanically and clinically, however, none has been demonstrated as superior. Newer techniques and implants have emerged, but have not been fully tested. We hypothesized that the unicortical button (UB) fixation will provide significantly improved restoration of the anatomic footprint and biomechanical properties when compared to transosseous (TO) repair of the SSc. A digital footprint of SSc humeral insertion was obtained in 6 pairs of fresh-frozen cadaveric shoulders using a three-dimensional (3-D) digitizer. A complete SSc tear was created, and each pair of shoulders was randomized to either SSc repair with UB or TO repair. Each specimen underwent a cyclic loading protocol followed by pull-to-failure. The failure load, elongation at failure, gapping failure, number of cycles until failure, the load at key gapping points (1 mm, 3 mm, 5 mm, and 10 mm) and the failure mode were recorded using high-resolution video recording. 3-D surfaces of the insertion footprint and repair site were obtained, and surface areas were calculated using a custom MATLAB script and laser scanner. Paired t-tests were conducted to compare differences between two repair groups. Failure load was significantly higher in the UB group (382.4 N ± 56.5 N) than in the TO group (253.6 N ± 103.4 N, p=0.005). TO repair provided higher gapping at failure (28.8 mm ± 8.2 mm) than UB repair (10.4 mm ± 6.8 mm, p=0.0017). UB repair had significantly higher load at the 1-mm, 5-mm, and 10-mm gapping compared with TO repair with p=0.042, p=0.033, and p=0.0076, respectively. There were no significant differences between elongation failure, the difference in footprint area from native to repair states, or the percentage of restored footprint area between groups. (p=0.26, p=0.18 and p=0.21 respectively) CONCLUSION: The UB fixation showed a significantly lower gap at failure, higher failure load and number of cycles until failure, and higher gap loads compared with the traditional TO repair for SSc. Although more clinical research is necessary, the UB fixation that utilizes cortical bone presents promising results.

Non-separable multidimensional multiresolution wavelets: A Douglas-Rachford approach

After re-casting the wavelet construction problem as a feasibility problem with constraints arising from the requirements of compact support, smoothness and orthogonality, the Douglas–Rachford algorithm is employed in the search for multi-dimensional, non-separable, compactly supported, smooth, orthogonal, multiresolution wavelets in the case of translations along the integer lattice and isotropic dyadic dilations. An algorithm for the numerical construction of such wavelets is described. By applying the algorithm, new one-dimensional wavelets are produced as well as genuinely non-separable two-dimensional wavelets.

LEVERAGING LEAN SIX SIGMA TECHNIQUES FOR ACCELERATED ON-SITE CASTING: FACTORS AND STRATEGIES

In the construction industry, issues such as excessive waste, rising costs, and strained relationships are prevalent. A pressing matter of plunged casting time during mass concreting activities has engulfed numerous construction contracting firms around the world. The increased time of concrete utilization not only risks the commencement of the heat of hydration but also initiates the setting time of concrete. The use of admixtures has often been a boon to curb this situation but human errors are almost impossible to escape from as inappropriate dosage of the admixtures can result in changing the properties of the concrete, affects the quality and pumping ability, which ultimately reducing the speed of casting and elapsed schedules. Other factors on site, though minor, vastly affect the pumping efficiency and causes considerable delays in the casting which not only affects the schedules but also causes time overrun and affects the productivity at site. The focus of this study is to address the issues encountered at the site that directly affect the speed of on-site casting and corrective actions.

Flexible parsing, interpretation, and editing of technical sequences with splitcode.

Next-generation sequencing libraries are constructed with numerous synthetic constructs such as sequencing adapters, barcodes, and unique molecular identifiers. Such sequences can be essential for interpreting results of sequencing assays, and when they contain information pertinent to an experiment, they must be processed and analyzed. We present a tool called splitcode, that enables flexible and efficient parsing, interpreting, and editing of sequencing reads. This versatile tool facilitates simple, reproducible preprocessing of reads from libraries constructed for a large array of single-cell and bulk sequencing assays. The splitcode program is available at http://github.com/pachterlab/splitcode.

Issues Related to Numerous Construction Techniques Practices In the Southern-Western Part of Rural Rajasthan

Issues Related to Numerous Construction Techniques Practices In the Southern-Western Part of Rural Rajasthan

Experimental study on vertical seepage of coarse-grained calcareous sand

Calcareous sand, a special geotechnical material employed as foundation fill in numerous reef constructions, exhibits susceptibility to seepage deformation in complex marine dynamic environments. Its permeability characteristics are notably distinct from conventional terrestrial soil, making the understanding of these properties critical for further applications. This study conducted vertical seepage tests on coarse-grained calcareous sand samples with varying coefficients of uniformity (Cu), coefficients of curvature (Cc), relative compactions (Dr), and soil skeletal structures. These tests utilized a custom-designed apparatus, supplemented with image binarization and particle image velocimetry techniques. Based on the results, the findings revealed a three-stage vertical seepage process: steady seepage, hydraulic adjustment, and seepage failure. The permeability coefficient k20 of the calcareous sand samples was observed to transition from a decreasing to an increasing trend with rising Cu and Cc values. Moreover, the k20 of tightly compacted and medium-tightly compacted samples exceeded that during the steady seepage stage upon entering the second stage, while the opposite holds true for relatively loose samples. The spatial organization of the sample skeleton had a considerable impact on its permeability, with coarse-grained calcareous sand imposing a greater constraint on fine particle migration compared to river sand.

Crosslinguistic influence in bilingual morphosyntactic processing: Effects of language-common, language-contrasting, and language-specific information

Abstract This study investigated how second language (L2) learners process the Korean numeral quantifier construction by using transferable and nontransferable information. For Chinese-speaking learners of Korean (Chinese group), agreement between an honorific numeral quantifier and a noun in Korean constitutes transferable information in the canonical structure and nontransferable L2-specific information in the scrambled structure. For Japanese-speaking learners of Korean (Japanese group), this information gives rise to crosslinguistic conflicts in both structures. The results from a self-paced reading task showed that the Japanese group did not exhibit sensitivity to grammatical errors in both structures, whereas the Chinese group detected the agreement violation in the canonical but not in the scrambled structure. When a context sentence was provided to license scrambling in the test sentence, however, another group of Chinese-speaking learners of Korean showed sensitivity to the violation. These findings suggest varying degrees of crosslinguistic influence in L2 sentence processing.

Research on the Correlation of Safety Risk of Railway Bridge Construction Based on Meta-Analysis

China has emerged as a prominent global player in the field of railways, with numerous railway construction projects spanning across diverse locations. Railway bridges, as a crucial component of railway construction, warrant significant attention. Meta-analysis, a statistical method that systematically synthesizes research findings, has been utilized to summarize and compare the results of safety risk management studies pertaining to railway bridge construction in China. By integrating social network analysis and evidence-based assessment of the literature, this study explores the interrelationships among risk factors. Within a specific railway bridge construction project, various safety risk factors may originate from common sources, including environmental factors, material and equipment factors, technical factors, management factors, personnel factors, and bridge-specific factors. Notably, there exists coupling among these security risk factors, whereby the presence or occurrence of one factor can influence the probability or severity of consequences associated with other factors. The results reveal that safety risk factors in railway bridge construction accumulate and propagate, thereby impacting the efficacy of safety risk management. Moreover, these factors are significantly influenced by the complexities inherent in the geo-meteorological and social-technical systems. This finding provides valuable insights for innovations in security risk management practices and offers suggestions for future innovation pathways.

NEWTON’S METHOD IN CONSTRUCTING A SINGULAR SET OF A MINIMAX SOLUTION IN A CLASS OF BOUNDARY VALUE PROBLEMS FOR THE HAMILTON - JACOBI EQUATIONS

The non-smooth features of the minimax (generalized) solution of the considered class of Dirichlet problems for equations of Hamiltonian type are due to the existence of pseudo-vertices - singular points of the boundary of the boundary set. The paper develops analytical and numerical methods for constructing pseudo-vertices and their accompanying constructive elements, which include local diffeomorphisms generating pseudo-vertices, as well as markers - numerical characteristics of these points. For markers, an equation with a characteristic structure inherent in equations for fixed points is obtained. An iterative procedure based on Newton’s method for the numerical construction of its solution is proposed. The convergence of the procedure to the pseudovertex marker is proved. An example of the numerical-analytical construction of a minimax solution is given, illustrating the effectiveness of the developed approaches for constructing nonsmooth solutions of boundary value problems.

Effects of a first-year undergraduate engineering design course: survey study of implications for student self-efficacy and professional skills, with focus on gender/sex and race/ethnicity

BackgroundStudents’ academic self-efficacy maximizes likelihood for success and retention, yet prior research suggests that historically underrepresented (minoritized) undergraduate students in higher education and in college-level engineering show lower self-efficacy, which has been linked to histories of systemic exclusion. To address such gaps in student success, this work examines the effect of a new first-year undergraduate engineering design course on students’ self-efficacy, as measured by students’ assessment of their ability to achieve engineering design goals, and their confidence in their professional skills such as teamwork, communication, and leadership. It draws upon two aligned survey studies that examine this development (a) among the students participating in the course during the academic semester and (b) among both course participants and non-participants in the year following the course. Survey results for all students were considered, with attention to specific demographic subgroups traditionally underrepresented in engineering.ResultsAnalyses indicate effect of the course on self-efficacy and other examined constructs, such as communication and teamwork, during the course semester and continued effects in engineering design self-efficacy and tinkering self-efficacy in the year following course participation. Results also reveal differences for specific racial/ethnic and gender/sex subgroups in numerous constructs, including suggestion of specific effect for female students.ConclusionsThis study’s focus on the implication of engineering design education on self-efficacy and other critical professional outcomes, as well as its attention to specific demographic subgroups, adds to research on engineering education and the effect of design-focused coursework using project-based learning. The study indicates an increased potential role for such coursework, as early as the first year of a university trajectory, in fostering student growth and increased representation in the field. Findings on differences by gender/sex and by racial/ethnic groups, including clearer positive effect for female students but more complexity in effect for underrepresented racial/ethnic groups, support added research probing experience and outcomes within and across these groups.

Transformational leadership and project success: the serial meditating roles of team flexibility and team agility

The construction sector is known for its dynamic nature, and numerous construction projects have failed to reach completion due to inadequate development of leadership. As a widely recognized leadership, transformational leadership has shown the positive relationship with project success. However, the mechanisms driving this relationship remain unclear in the context of construction projects. In response to this topic, by adopting the Input-Mediator-Outcome model, this study seeks to investigate the mediating effect of team flexibility and team agility between transformational leadership and project success in the context of construction projects. Data were collected through a survey from 306 construction project members. The Structural Equation Modeling method was employed to test the proposed model. The findings demonstrate that (1) transformational leadership positively impacts team flexibility and team agility; (2) team flexibility and team agility positively impact project success; (3) team flexibility shows a positive mediating effect between transformational leadership and project success; (4) team agility shows no mediating effect between transformational leadership and project success; and (5) team flexibility and team agility play serial mediating roles between transformational leadership and project success.

Impact of Pre-Planning on Time Management in Construction Projects

Numerous construction projects in India are grappling with significant delays, leading to surpassing the initially set timelines and budgets. The term "delay" in this context refers to the extension of time beyond the initially planned completion period. This research initiative aims to identify the most influential factors contributing to delays in Indian construction projects through a combined approach of literature review and a questionnaire survey. The literature review unearthed 103 causes of delays, which were categorized into 8 distinct groups, and identified 8 effects associated with project delays. Notably, authors presented varying rankings for these delaying factors, reflecting diverse perspectives influenced by different native and contextual considerations. 1. The pre-planning stage presents a crucial opportunity to plan numerous aspects, ensuring that the project is set on the right course right from its inception. 2. The objective of this study is to pinpoint various parameters that, when appropriately addressed during the planning stage, can contribute to successful project delivery. Key Words: Tread; operation; management.

Beliefs about emotions: Latent structure and links with emotion regulation and psychopathology

BackgroundThere is evidence that beliefs about emotions are important for mental health. However, this field needs further research. Via the Emotion Beliefs Questionnaire, we aimed to explore the latent structure of emotion beliefs, their associations with numerous emotion constructs, and the role of emotion regulation in mediating emotion beliefs and emotional problems. MethodsThis cross-sectional study involved 508 general community adults via an online survey, participants completed the EBQ, the Perth Emotion Regulation Competency Inventory, and the Depression Anxiety Stress Scale-21 for the central analyses, in addition to several related emotion measures. Our analytical strategy included: 1. Factor analyses to test the psychometric properties of the EBQ including its measurement invariance; 2. Correlational analyses to investigate the relationship between beliefs about emotions and several emotion constructs; and 3. Mediation analyses to explore the role of emotion regulation in the association between beliefs about emotions and depression and anxiety. ResultsThe findings supported a four-factor structure for the EBQ, with invariance across different demographic categories. Beliefs about the controllability of emotions were associated with most emotion constructs relative to beliefs about the usefulness of emotions. The links between beliefs about emotions with depression and anxiety were mediated by emotion regulation. ConclusionsOur findings underscore the importance of assessing the multidimensional emotion beliefs construct, as these beliefs are associated with impaired emotion regulation and many important emotional outcomes. Beliefs about emotion thus represent a useful area for future clinical research so that interventions tackle psychological difficulties in an effective way.

Numerical construction tests to assess the feasibility of placement grids for Cubipod Homogeneous Low-Crested Structures

Placement grid design is a key phase when constructing armor layers in mound breakwaters. Homogeneous Low-Crested Structures (HLCS) are low-crested structures designed as artificial reefs for marine colonization, coral reef regeneration and beach protection. The placement grid affects the construction feasibility, hydraulic stability and wave transmission of HLCS. This study presents a numerical methodology to simulate a realistic placement procedure for armor units during the construction of HLCS. This numerical simulator is based on the open-source physics engine Bullet Physics Engine (BPE), which applies Newton's laws of motion to rigid bodies. From an initial theorical placement grid for Cubipod HLCS, a series of numerical realistic unit placement tests are carried out to emulate the placement process at prototype scale; placement velocity and spatial deviation of crawler cranes are given parameters associated with each specific project. Considering the placement velocity and spatial deviation during construction, the quality of each specific placement grid is associated with the measured placement errors and the corresponding initial construction deviation to HLCS. This numerical methodology is valuable to understand the influence and the uncertaintly of the construction procedure of armor layers in mound breakwaters.