bluuebunny/crossref_metadata_2025_split huggingface dataset:
Knowledge sharing and learning in projects - Focusing on time restriction
Authors: Ekambaram A 
Published: September 2024

Abstract
Projects can be seen as a learning arena. New knowledge can be developed, and existing knowledge can be shared in projects. Several project-based organizations (PBOs) could see the importance of knowledge sharing and learning in projects – for instance to deal effectively with changes and uncertainty, and to increase productivity. However, they find it difficult to unleash a greater extent of potential benefits of learning and knowledge sharing. One of the difficulties that has been widely mentioned by practitioners and researchers is time restriction. This paper aims to look closer at how time restriction could play out its role in knowledge sharing and learning in PBOs. In addition, this paper addresses how to deal effectively with this barrier and provides suggestions for making improvement in organizational practices that can enhance knowledge sharing and learning. In order to address the topic of this paper, relevant data is collected through conducting interviews in PBOs in Norway. The interviews are of semi-structured nature. As a possible impact, the results can lead to further research by testing the suggestions in case projects or focusing on certain aspects of the results as an in-depth study.
Portfolio Management of Infrastructure Projects
Authors: Emefu Emmanuel , Basnet Kulchandra , Minoretti Arianna , Lædre Ola 
Published: September 2024

Abstract
Project portfolio management (PPM) in guiding infrastructure development is often overlooked though it has crucial importance. PPM has been categorized into two phases. The first phase is about selecting the right projects in a portfolio while the second phase is about managing the selected projects to maintain strategic alignment with the organizational goals. The paper investigates the existing PPM practices in the Norwegian infrastructure sector to provide possible improvements for successful infrastructure project delivery. A literature review and structured interviews with selected experts in the infrastructural sector were carried out. The findings reveal that literature often focuses on criteria for portfolio selection, leaving the second phase of PPM with managing the selected projects unexamined. This happens despite all the interview respondents saying that portfolio management is important for maintaining strategic alignment with the organizational objectives. The interviews revealed that there is no standardized framework or guidelines yet for managing projects in portfolios for infrastructures. Significantly, the study found that there is a big contrast in the way the private and public organizations manage PPM. This study concludes that there is a need for further research to bridge gaps, enhance the practical applicability of the project portfolio management principles, and possibly establish a standardized framework fitted to the Norwegian Infrastructure projects.
Exploring Empowerment in Construction: Discovering Challenges of self-managed Workers
Authors: Görsch Christopher , Lappalainen Eelon , Riekki Jaakko , Seppänen Olli , Peltokorpi Antti 
Published: September 2024

AbstractTraditionally, production planning and control (PP&C) approaches in construction have been hierarchical and rigid. These PP&C approaches have often been reported to insufficiently provide task preconditions in a dynamically changing production environment, ultimately causing stress and dissatisfaction to workers. Modern organizational and management theory promotes more agile and dynamic decentralized decision-making structures. These support workers’ access to the organization’s resources and provide preconditions to implement their individual ideas. Such empowerment is linked to increased subjective well-being and project performance. However, several studies present workers’ perceptions of their own task responsibility and decision-making as empowered, self-managed, and decentralized, while satisfaction remains low and productivity rates stagnated over the last decades. Thus, this research studies qualitatively factors promoting empowerment of workers and what kind of challenges workers face in perceived decentralized work environments. Semi-structured interviews with 14 mechanical, electrical, and plumbing (MEP) workers were conducted and analysed using an empowerment-level framework. This study suggests that leadership dynamics among MEP workers are contingent on the tasks and their preconditions, transitioning from centralized in design stages to decentralized during execution. Empowerment structures mirror this shift, evolving through actions either delegated or seized based on individuals and groups managing task demands effectively. The findings suggest that the level of leadership and empowerment is tacitly and collectively coordinated by management and workers through informal verbal exchanges and situational cues, which often leads to unclear and chaotic situations. In summary, the study highlights the advantages and disadvantages of undifferentiated empowerment structures and emphasizes the need for advanced in-depth understanding and exploration of dynamically changing empowerment and leadership structures.
Numerical and experimental study of temperature, residual stresses, and microstructural evolution on multi-layer and multi-pass laser cladding of 6061Al alloy
Authors: Tang Weifeng , Liu Aoqi , Song Chengyu , Zhou Li 
Published: September 2024

Abstract
Multi-layer and multi-pass laser cladding is a promising and important process for repairing and strengthening Al alloy parts, whereas the temperature and residual stresses have a great influence on the properties of the laser cladding layer. In this paper, a nonlinear transient thermo-mechanical coupling finite element model of multi-layer and multi-pass cladding of 6061Al alloy was established. Meanwhile, the DFLUX user subroutine was developed using Fortran code to define the movement of the three-dimensional heat source model. From there, the distribution and evolution of temperature and stresses at different times were investigated. In addition, the micro-morphology and micro-hardness after cladding were also analyzed in detail. The results show that both the maximum residual tensile and compressive stresses decrease with increasing the number of cladding passes. At the same time, due to the reheating effect of each cladding on the previous cladding, a few bubbles appear at the top, middle and bottom of the overlap surfaces. Moreover, the micro-hardness of the overlap surfaces decreases slightly. This study can provide a theoretical basis for further research into multi-layer and multi-pass laser cladding of 6061Al alloy.
Resonator-mediated quantum gate between distant charge qubits
Authors: Kayatz Florian , Mielke Jonas , Burkard Guido 
Published: September 2024

Abstract
Strong charge-photon coupling allows the coherent coupling of a charge qubit, realized by a single charge carrier (either an electron or a hole) in a double quantum dot, to photons of a microwave resonator. Here, we theoretically demonstrate that, in the dispersive regime, the photons can mediate both an

i

SWAP

gate as well as a

i

SWAP

gate between two distant charge qubits. We provide a thorough discussion of the impact of the dominant noise sources, resonator damping and charge qubit dephasing on the average gate fidelity. Assuming a state-of-the art resonator decay rate and charge qubit dephasing rate, the predicted average gate fidelities are below 90%. However, a decrease of the charge qubit dephasing rate by one order of magnitude is conjectured to result in gate fidelities surpassing 95%.
Shield machine pose prediction based on CNN-GRU-Attention
Authors: Liu Xuanyu , Yang Kun 
Published: September 2024

Abstract
This paper presents a shield machine pose prediction method based on Convolutional Neural Network (CNN) - Gated Recurrent Unit (GRU) with Attention mechanism (Attention). Firstly, the Pearson correlation coefficient is employed to select input parameters highly related to the position and posture of the shield machine. Then, a convolutional neural network is introduced to extract the long-term short-term feature dependency features in the operation data of the shield machine, optimizing the model’s input. The attention mechanism is integrated into the gated loop unit to make the model more targeted in using key information in the input sequence and improve the accuracy of the shield machine pose prediction model. The effectiveness of this method is verified by the example of Beijing Metro Line 10. Compared with GRU-Attention and LSTM-Attention models, the mean value of determination coefficient R2 increased from 0.872 and 0.886 to 0.959, and the mean value of root mean square error RMSE decreased from 2.78 and 2.52 to 2.14. This method can provide effective prediction for the attitude and position of shield machines in actual tunnel engineering.
Impact of an appendicolith and its characteristics on the severity of acute appendicitis
Authors: Sula Sami , Paananen Timo , Tammilehto Ville , Hurme Saija , Mattila Anne , Rantanen Tuomo , Rautio Tero , Pinta Tarja , Sippola Suvi , Haijanen Jussi M , Salminen Paulina 
Published: September 2024

Abstract

Background
Antibiotics have been reported as an efficient and safe treatment option for uncomplicated acute appendicitis without an appendicolith diagnosed using computed tomography (CT). The aim of this study was to assess the association of a CT-diagnosed appendicolith and its characteristics with appendicitis severity.

Methods
A large prospective patient cohort with suspected acute appendicitis enrolled between April 2017 and November 2018 was retrospectively reviewed. The initial analysis evaluated the association of a CT-diagnosed appendicolith with complicated acute appendicitis; then, based on the availability of CT images, a subset of patients was analysed for the correlation of appendicolith characteristics with appendicitis severity. The final appendicitis assessment (uncomplicated or complicated—including perforation, gangrene, an abscess, or a tumour) was determined for all patients.

Results
Out of 3512 eligible patients, 3085 patients with appendicitis were selected and 380 patients with an appendicolith and with a CT image available for reassessment were included. Out of the 3085 patients with CT-diagnosed acute appendicitis, 1101 (35.7%) patients presented with both acute appendicitis and an appendicolith and, out of these, 519 (47.1%) had complicated acute appendicitis. In the patients without an appendicolith (1984 patients), 426 (21.5%) had complicated appendicitis (P &lt; 0.001). Re-evaluation of CT images for 380 patients showed that a larger appendicolith diameter (OR = 1.15 (95% c.i. 1.06 to 1.25); P &lt; 0.001), appendicolith location at the base of the appendix (55.1% versus 44.9%; P = 0.008), and heterogeneous appendiceal wall enhancement around the appendicolith (68.4% versus 31.6%; P &lt; 0.001) were associated with an increased risk of complicated acute appendicitis.

Conclusion
The presence of an appendicolith in patients with acute appendicitis is correlated with the risk of complicated appendicitis. This risk is further increased by a larger appendicolith diameter or appendicolith location at the base of the appendix.
Patterns of cortical thickness alterations in degenerative cervical myelopathy: associations with dexterity and gait dysfunctions
Authors: Muhammad Fauziyya , Weber Kenneth A , Rohan Michael , Smith Zachary A 
Published: September 2024

Abstract
Degenerative cervical myelopathy (DCM) can lead to significant brain structural reorganization. The association between the cortical changes and specific motor symptoms in DCM has yet to be fully elucidated. We investigated the associations between cortical thickness changes with neurological symptoms, such as dexterity and gait abnormalities, in patients with DCM in a case–control study. A 3 Tesla MRI scanner was used to acquire high-resolution T1-weighted structural scans from 30 right-handed patients with DCM and 22 age-matched healthy controls. Pronounced cortical thinning was observed in DCM patients relative to healthy controls, particularly in the bilateral precentral and prefrontal gyri, left pars triangularis, left postcentral gyrus, right transverse temporal and visual cortices (P ≤ 0.04). Notably, cortical thickness in these regions showed strong correlations with objective motor deficits (P &lt; 0.0001). Specifically, the prefrontal cortex, premotor area and supplementary motor area exhibited significant thickness reductions correlating with diminished dexterity (R2 = 0.33, P &lt; 0.0007; R2 = 0.34, P = 0.005, respectively). Similarly, declines in gait function were associated with reduced cortical thickness in the visual motor and frontal eye field cortices (R2 = 0.39, P = 0.029, R2 = 0.33, P = 0.04, respectively). Interestingly, only the contralateral precuneus thickness was associated with the overall modified Japanese Orthopaedic Association (mJOA) scores (R2 = 0.29, P = 0.003). However, the upper extremity subscore of mJOA indicated an association with the visual cortex and the anterior prefrontal (R2 = 0.48, P = 0.002, R2 = 0.33, P = 0.0034, respectively). In conclusion, our findings reveal patterns of cortical changes correlating with motor deficits, highlighting the significance of combining objective clinical and brain imaging assessments for understanding motor network dysfunction in DCM.
Transcatheter aortic valve replacement before to breast cancer management: case report and literature review
Authors: Aquino-Bruno Heberto , Muratalla-González Roberto , Garcia-Garcia Juan F , Morales-Portano Julieta D , Meléndez-Ramírez Gabriela , Ahu-Chandomi Yusihey , Merino-Rajme Jose A , Alcantara-Meléndez Marco A 
Published: September 2024

Abstract

Background
The coexistence of aortic stenosis (AS) and neoplastic pathology are common due to shared risk factors with atherosclerotic disease, such as diabetes, inflammatory conditions, and smoking. Severe AS in patients with cancer requires careful assessment in order to select the appropriate therapeutic choices and their timing (i.e. valve treatment first vs. cancer treatment first).

Case summary
A 66-year-old woman with a history of smoking was admitted to our centre due to heart failure (HF). During her hospitalization, severe AS with severe ventricular dysfunction and cancer were documented. Because of her severe heart disease, she was unable to receive antineoplastic treatment. Therefore, she underwent percutaneous surgery to treat the aortic valve. After that, the management of cancer became possible, which included bilateral radical mastectomy and chemotherapy.
We are presenting a case of cancer coexisting with aortic stenosis and reduced left ventricle ejection fraction. In this case, we performed Transcatheter Aortic Valve Replacement (TAVR) with the aim of improving the ejection fraction, followed by chemotherapy.

Discussion
Cancer patients may be further disadvantaged by AS if it interferes with their treatment by increasing the risk associated with oncologic surgery and compounding the risks associated with cardiotoxicity and HF. Clinical trials and guidelines on TAVR exclude cohorts with limited life expectancy. Hence, the correct and optimal care for cancer patients with severe AS is complex. The TAVR, for cancer patients with severe AS, can more frequently be the best clinical choice by avoiding cardiopulmonary bypass, minimal invasiveness, and therefore, shorter recovery time.
Gender and ethnicity bias in generative artificial intelligence text-to-image depiction of pharmacists
Authors: Currie Geoffrey , John George , Hewis Johnathan 
Published: September 2024

Abstract

Introduction
In Australia, 64% of pharmacists are women but continue to be under-represented. Generative artificial intelligence (AI) is potentially transformative but also has the potential for errors, misrepresentations, and bias. Generative AI text-to-image production using DALL-E 3 (OpenAI) is readily accessible and user-friendly but may reinforce gender and ethnicity biases.

Methods
In March 2024, DALL-E 3 was utilized to generate individual and group images of Australian pharmacists. Collectively, 40 images were produced with DALL-E 3 for evaluation of which 30 were individual characters and the remaining 10 images were comprised of multiple characters (N = 155). All images were independently analysed by two reviewers for apparent gender, age, ethnicity, skin tone, and body habitus. Discrepancies in responses were resolved by third-observer consensus.

Results
Collectively for DALL-E 3, 69.7% of pharmacists were depicted as men, 29.7% as women, 93.5% as a light skin tone, 6.5% as mid skin tone, and 0% as dark skin tone. The gender distribution was a statistically significant variation from that of actual Australian pharmacists (P &lt; .001). Among the images of individual pharmacists, DALL-E 3 generated 100% as men and 100% were light skin tone.

Conclusions
This evaluation reveals the gender and ethnicity bias associated with generative AI text-to-image generation using DALL-E 3 among Australian pharmacists. Generated images have a disproportionately high representation of white men as pharmacists which is not representative of the diversity of pharmacists in Australia today.
CD8+T cell infiltration–associated barrier function of brain endothelial cells is enhanced by astragalus polysaccharides via inhibiting the PI3K/AKT signaling pathway
Authors: Zhao Yan , Lu Qijin , Ma Jinyun , Ding Guiqing , Wang Xiaohan , Qiao Xi , Wang Yuanhua , Cheng Xiaodong 
Published: September 2024

Abstract
Pathogenic CD8+T cells play an essential role in neuroinflammation and neural injury, which leads to the progression of inflammatory neurological disorders. Thus, blocking the infiltration of CD8+T cells is necessary for the treatment of neuroinflammatory diseases. Our previous study demonstrated that astragalus polysaccharide (APS) could significantly reduce the infiltration of CD8+T cells in experimental autoimmune encephalomyelitis mice. However, the mechanism by which APS suppresses CD8+T cell infiltration remains elusive. In this study, we further found that APS could reduce the CD8+T cell infiltration in experimental autoimmune encephalomyelitis and lipopolysaccharide (LPS)-induced neuroinflammatory model. Furthermore, we established the mouse brain endothelial cell (bEnd.3) inflammatory injury model by interleukin-1β or LPS in vitro. The results showed that APS treatment downregulated the expression of vascular cell adhesion molecule1 to decrease the adhesion of CD8+T cells to bEnd.3 cells. APS also upregulated the expression of zonula occludens-1 and vascular endothelial cadherin to reduce the transendothelial migration of CD8+T cells. The PI3K/AKT signaling pathway might mediate this protective effect of APS on bEnd.3 cells against inflammatory injury. In addition, we demonstrated the protective effect of APS on the integrity of brain endothelial cells in an LPS-induced neuroinflammatory model. In summary, our results indicate that APS can reduce peripheral CD8+T cell infiltration via enhancing the barrier function of brain endothelial cells; it may be a potential for the prevention of neuroinflammatory diseases.
Plastic Resilience: Rethinking Resilience in Illness with Catherine Malabou
Authors: Ó Fathaigh Cillian 
Published: September 2024

Abstract
Drawing on Catherine Malabou’s notion of plasticity, this article argues for a conception of resilience as plastic. Resilience has proven an important concept in health care, describing how we manage life-changing illnesses. Yet, resilience is not without its critics, who suggest it neglects a political, social, or personal dimension in illness. In this article, I propose that a concept of plastic resilience can address these criticisms. On this account, success should not be based on a return to function, but rather on how actively we are involved in the formation of a new self after illness. I address some approaches that can benefit from “plastic resilience,” namely, art therapy, expert companionship, and shared decision-making. In each case, I underline how we should help patients thematize and engage with their new selves, while also being constantly vigilant for how these changes might impact our current assumptions around their preferences for treatment.
The Requisite Legal Standard of the Digital Markets Act’s Designation Process
Authors: Ribera Martínez Alba 
Published: September 2024

Abstract
Moving away from the effects-based approach in EU competition law, the Digital Markets Act introduces renewed requisite legal standards that differ from probabilistic standards of proof. Ideally, this concept should also shape the European Commission’s initial enforcement actions and its judicial review in the EU courts.
The paper critically examines the legal standards that the European Commission established in its first set of designation decisions issued in September 2023. It spotlights two significant actions by the Commission: the delineation of core platform services and the consideration of the undertakings’ rebuttals of the presumption of a gatekeeper position deriving from the application of the quantitative thresholds. The paper reveals a disjointed approach by the Commission building upon the idea of the regulation’s plasticity.
Younger age for the oldest magnetic white dwarfs
Authors: Ginzburg Sivan 
Published: September 2024

ABSTRACT
Sufficiently old white dwarfs cool down through a convective envelope that directly couples their degenerate cores to the surface. Magnetic fields may inhibit this convection by stiffening the criterion for convective instability. We consistently implemented the modified criterion in the stellar evolution code mesa, and computed the cooling of white dwarfs as a function of their mass and magnetic field B. In contrast to previous estimates, we find that magnetic fields can significantly change the cooling time t even if they are relatively weak $B^2\ll 8\pi P$, where P is the pressure at the edge of the degenerate core. Fields $B\gtrsim 1\textrm {~MG}$ open a radiative window that decouples the core from the convective envelope, effectively lowering the luminosity to that of a fully radiative white dwarf. We identified a population of observed white dwarfs that are younger by $\Delta t\sim$ Gyr than currently thought due to this magnetic inhibition of convective energy transfer – comparable to the cooling delay due to carbon–oxygen phase separation. In volume-limited samples, the frequency and strength of magnetic fields increase with age. Accounting for magnetic inhibition is therefore essential for accurate cooling models for cosmic chronology and for determining the origin of the magnetic fields.