bluuebunny/crossref_metadata_2025_split huggingface dataset:
La gestion du changement confrontée aux événements. Le cas du comité des champs élysées
Authors: Deroy Xavier 
Published: April 2014

Quelle signification attribuer à la gestion du changement lorsqu’elle se confronte aux figures de l’événement ? L’article propose un cadre théorique qui, circonscrit l’étendue d’une gestion planifiée du changement en distinguant deux types d’événements. Les micro-événements correspondent à un flux continu de différenciations situées hors du champ d’un changement planifié. Les macro événements interviennent épisodiquement du top management pour organiser le changement. Ils interprètent le passé et orientent normativement le futur du changement institutionnel. La gestion du changement du Comité des Champs Élysées montre l’interaction entre micro et macro événements et la tension entre des logiques de banalisation et de prestige.
Visual Impairment, Eye Conditions, and Diagnoses of Neurodegeneration and Dementia
Authors: Ferguson Erin L. , Thoma Mary , Buto Peter T. , Wang Jingxuan , Glymour M. Maria , Hoffmann Thomas J. , Choquet Hélène , Andrews Shea J. , Yaffe Kristine , Casaletto Kaitlin , Brenowitz Willa D. 
Published: July 2024

ImportanceVision and eye conditions are associated with increased risk for Alzheimer disease and related dementias (ADRDs), but the nature of the association and the underlying biological pathways remain unclear. If causal, vision would be an important modifiable risk factor with viable population-level interventions.ObjectiveTo evaluate potentially causal associations between visual acuity, eye conditions (specifically cataracts and myopia), neuroimaging outcomes, and ADRDs.Design, Setting, and ParticipantsA cohort and 2-sample bidirectional mendelian randomization (MR) study was conducted using UK Biobank participants and summary statistics from previously published genome-wide association studies on cataract, myopia, and AD. The participants included in the analysis were aged 55 to 70 years without dementia at baseline (calendar years 2006 to 2010), underwent genotyping, and reported on eye conditions; a subset completed visual acuity examinations (n = 69 852-71 429) or brain imaging (n = 36 591-36 855). Data were analyzed from August 15, 2022, through November 28, 2023.ExposureSelf-reported cataracts, visual acuity, and myopia measured by refraction error.Main Outcomes and MeasuresADRD, AD, and vascular dementia were identified from electronic medical records. Total and regional brain volumes were determined using magnetic resonance imaging.ResultsThe sample included 304 953 participants (mean [SD] age, 62.1 (4.1) years; 163 825 women [53.72%]); 14 295 (4.69%) had cataracts and 2754 (3.86%) had worse than 20/40 vision. Cataracts (hazard ratio [HR], 1.18; 95% CI, 1.07-1.29) and myopia (HR, 1.35; 95% CI, 1.06-1.70) were associated with a higher hazard of ADRD. In MR analyses to estimate potential causal effects, cataracts were associated with increased risk of vascular dementia (inverse variance-weighted odds ratio [OR], 1.92; 95% CI, 1.26-2.92) but were not associated with increased dementia (OR, 1.21; 95% CI, 0.98-1.50). There were no associations between myopia and dementia. In MR for potential reverse causality, AD was not associated with cataracts (inverse variance–weighted OR, 0.99; 95% CI, 0.96-1.01). Genetic risk for cataracts was associated with smaller total brain (β = −597.43 mm3; 95% CI, −1077.87 to −117.00 mm3) and gray matter (β = −375.17 mm3; 95% CI, −680.10 to −70.24 mm3) volumes, but not other brain regions.Conclusions and RelevanceIn this cohort and MR study of UK Biobank participants, cataracts were associated with increased risk of dementia, especially vascular dementia, and reduced total brain volumes. These findings lend further support to the hypothesis that cataract extraction may reduce the risk for dementia.
Repairing Interfacial Defects in Self‐Assembled Monolayers for High‐Efficiency Perovskite Solar Cells and Organic Photovoltaics through the SAM@Pseudo‐Planar Monolayer Strategy
Authors: Hung Chieh‐Ming , Wu Chi‐Chi , Yang Yu‐Hsuan , Chen Bo‐Han , Lu Chih‐Hsuan , Chu Che‐Chun , Cheng Chun‐Hao , Yang Chun‐Yun , Lin Yan‐Ding , Cheng Ching‐Hsuan , Chen Jiann‐Yeu , Ni I‐Chih , Wu Chih‐I , Yang Shang‐Da , Chen Hsieh‐Chih , Chou Pi‐Tai 
Published: July 2024

AbstractLately, carbazole‐based self‐assembled monolayers (SAMs) are widely employed as effective hole‐selective layers (HSLs) in inverted perovskite solar cells (PSCs). Nevertheless, these SAMs tend to aggregate in solvents due to their amphiphilic nature, hindering the formation of a monolayer on the ITO substrate and impeding effective passivation of deep defects in the perovskites. In this study, a series of new SAMs including DPA‐B‐PY, CBZ‐B‐PY, POZ‐B‐PY, POZ‐PY, POZ‐T‐PY, and POZ‐BT‐PY are synthesized, which are employed as interfacial repairers and coated atop CNph SAM to form a robust CNph SAM@pseudo‐planar monolayer as HSL in efficient inverted PSCs. The CNph SAM@pseudo‐planar monolayer strategy enables a well‐aligned interface with perovskites, synergistically promoting perovskite crystal growth, improving charge extraction/transport, and minimizing nonradiative interfacial recombination loss. As a result, the POZ‐BT‐PY‐modified PSC realizes an impressively enhanced solar efficiency of up to 24.45% together with a fill factor of 82.63%. Furthermore, a wide bandgap PSC achieving over 19% efficiency. Upon treatment with the CNph SAM@pseudo‐planar monolayer, also demonstrates a non‐fullerene organic photovoltaics (OPVs) based on the PM6:BTP‐eC9 blend, which achieves an efficiency of 17.07%. Importantly, these modified PSCs and OPVs all show remarkably improved stability under various testing conditions compared to their control counterparts.
A Combined Theoretical and Experimental Raman Scattering Study of BaZrS3−BaHfS3 Solid Solutions
Authors: Yetkin Hasan Arif , Dale Phillip J. , Kshirsagar Aseem Rajan , Reichardt Sven , Redinger Alex , Latini Alessandro , Ciccioli Andrea , Romagnoli Lorenza 
Published: July 2024

AbstractBa(Zr,Hf)S3 solid solutions are proposed for photovoltaic applications and a fast non‐destructive measurement of the composition of these solutions and the identification of any possible secondary phases is a prerequisite for understanding their opto‐electronic properties. Previously multi‐wavelength Raman spectroscopy has been used for such purposes in other chalcogenide solution series. Here we calculate the non‐resonant one‐phonon Raman spectra of pure BaHfS3 and BaZrS3, which show only subtle differences between them, since the most prominent modes are dominated by the sulfur atoms and the change in mass of going from Hf to Zr is balanced by a near equal and opposite change in the bonding. To test this experimentally, a solution series of BaZr1–xHfxS3 (0≤x≤1) powders was synthesised and free of a secondary phase, HfS3 identified by 633 nm excitation Raman spectroscopy. The veracity of the synthesis method was confirmed by comparing X‐ray diffractograms and optical absorption spectra of the BaZr0.5Hf0.5S3 alloy to a 50 : 50 mixture of the pure ternary compounds. Experimental non‐resonant Raman measurements on the alloy powders confirm that only slight variations in the spectra are visible, making an alloy composition determination difficult. However, exciting the alloys resonantly, leads to the appearance of new two‐phonon modes in the Raman spectrum, which change significantly across the alloy series. We consequently suggest that a rapid alloy composition measurement can be made unambiguously by measuring the ratio of the intensities of the 825 cm−1 and 625 cm−1 Raman features.
Role of ileal diversion in pediatric inflammatory bowel disease
Authors: Simard Amanda A. , Kotamraju Swetha , DeFazio Jennifer R. , Picoraro Joseph A. 
Published: July 2024

AbstractSurgical intervention is often indicated in pediatric inflammatory bowel disease (IBD) for medically refractory disease or complications of severe disease. Specifically, surgical intervention via ileal diversion allows for fecal flow to be redirected away from diseased distal bowel and through an ileostomy. It is utilized in patients who have medically refractory colitis, severe perianal disease, or irreversible bowel damage. In patients with ulcerative colitis, it is primarily performed during a restorative proctocolectomy with ileal pouch anal anastomosis to protect the high‐risk anastomoses. In the setting of Crohn's disease, ileal diversion reduces the exposure of diseased distal intestine to pro‐inflammatory stool. During perioperative planning, it is crucial for the gastroenterologist to partner early with a multidisciplinary team including surgeons, nutritionists, wound ostomy care nurses, psychologists, and social workers. Patients should be assessed for malnutrition and should be optimized nutritionally with enteral or parenteral nutrition. As they are associated with increased risk of postoperative complications, corticosteroids should be significantly reduced or completely discontinued preoperatively. Though ileal diversion may reduce the complications associated with anastomosis, serious postoperative complications can include diversion colitis and high‐output fistulae. This review aims to provide an overview of the role of ileal diversion in the treatment of pediatric IBD to pediatric gastroenterologists to inform their medical decision‐making and discussions with patients and families.
Unveiling the Hidden Networks: AFM Insights into Pre‐Vulcanized Hevea Latex and Its Profound Impact on Latex Film Mechanical Properties
Authors: Payungwong Narueporn , Nakajima Ken , Ho Chee‐Cheong , Sakdapipanich Jitladda 
Published: July 2024

AbstractNatural rubber (NR) films with different natural networks—concentrated NR (CNR), deproteinized NR (DPNR), and small rubber particles (SRP)—are investigated to explore the relationship between network structure and film properties using atomic force microscopy (AFM) in PeakForce Quantitative Nanomechanics (QNM) mode. Nitrogen content, gel content, and particle size distribution analyses reveal distinct network topologies in each latex type. Mechanical testing shows variations in tensile strength and crosslink density. AFM analysis provides insights into the crosslink network structures within the pre‐vulcanized latex film. It is found that DPNR and CNR films have a uniform distribution of crosslink networks, with DPNR exhibiting higher Young's modulus values. In contrast, SRP shows varying Young's modulus values, suggesting poor coalescence arising from a harder particle surface and a softer rubber core in an inhomogeneous network structure intrinsic to the non‐rubber components (NRCs) make‐up of SRP latex. This study highlights the pivotal role of natural network structures formed by NRCs in determining the ultimate properties of latex films, which has significant implications for the rubber industry, particularly in the production of latex‐dipped products, medical devices, and bioengineering applications.
Porous Supramolecular Crystalline Probe that Detects Non‐Covalent Interactions Involved in Molecular Recognition of Furanic Compounds
Authors: Tashiro Shohei , Kuwabara Kyohei , Otsuru Kosei , Shionoya Mitsuhiko 
Published: July 2024

AbstractSelective separation and conversion of furan‐based biomass‐derived compounds, which are closely related to biorefineries, is currently an important issue. To improve their performance, it is important to deepen the understanding of non‐covalent interactions that act on the molecular recognition of furanic compounds on separation or catalyst matrices. Here, a new method is reported to comprehensively visualize such intermolecular interactions using a porous supramolecular crystalline probe with polar and non‐polar binding sites within a low‐symmetric nanochannel consisting of four isomeric PdII3‐macrocycles. Single‐crystal X‐ray diffraction analysis of the crystals including 5‐hydroxymethylfurfural, furfural, furfuryl alcohol, or 2‐acetylfuran reveals a variety of interactions involving their furan rings and polar substituents. It is also found that cooperative and competitive effects between guest and solvent molecules significantly change their recognition mode.
The Influence of Relative Position on Ground Potential and Electric Field Based on Interfacial Charge Accumulation in HVDC
Authors: Zhang Jun , Cao Xiaobin , Jin Weidong , Zhang Siyuan , Zhang Bide , Zhang Yu 
Published: July 2024

AbstractWith the development of high‐voltage direct current (HVDC) engineering around the world, there has been increasing attention to the issue of selecting site for direct current (DC) grounding electrodes since the pollution coming from ground potential and electric field. As previous study result, the distance is closer to the grounding electrode, the influence is greater for ground potential and electric field, as well as vice versa. Through proposing the analysis approach of equivalent interfacial charge accumulating, the article goes beyond this previous general‐conclusion and extracts the relative position conception from the mono‐distance for further studying on weakening their impacts on the environment. In comparison with the previous results, the research finding shows that the movement of relative position is able to achieve the best distribution of ground potential or electric field corresponding to different soil‐layered structure, furthermore, the specific mathematic formula about the best relative position has been derived by the accumulated charge model proposed. Finally, the results have been demonstrated by simulation calculation of the CDEGS software for a practical HVDC project in China, moreover, regarding soil resistivity variation related to the different seasons, the optimized relative position about 13 ~ 24 km has been adopted in the real HVDC grounding project as a suggested site. It reveals that the underlying relative position behind the mono‐distance could be applied to selecting the site of grounding electrode as reference in the future. © 2024 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.
Strangers in the North: Critical narratives on the postgraduation career transitions of international doctoral students
Authors: Zhang Bo , Morgan K. Kayon 
Published: July 2024

AbstractData show higher enrollment of international graduate students compared to undergraduates in the United States in 2022, with the trend expected to continue. Many international doctoral students pursue education in the United States, hoping to seek employment and/or employment‐based permanent immigration after graduation. Through critical personal narratives (CPNs), the authors use their stories to reflect on employment‐seeking experiences during their time as international graduate students. The narratives depict a 20‐year time span of ongoing issues faced by international graduate students. These first‐person accounts authentically recognize the challenges and provide an avenue for institutions to subsequently address the areas of immigration policies, hiring practices, career development, and cultural responsiveness for international doctoral students.
Drivers of High Concentration and Dispersal of PM10 and PM2.5 in the Eastern Part of Chhota Nagpur Plateau, India, Investigated Through HYSPLIT Model and Improvement of Environmental Health Quality
Authors: Saha Soumik , Bhattacharjee Sumana , Bera Biswajit , Haque Enamul 
Published: July 2024

ABSTRACTThe ambient air quality is continuously declining especially in emerging countries because of rapid rate of urbanization, industrialization, and allied activities. Thus, the principal objective of this research is to inspect the spatiotemporal variation of particulate matters and to identify the drivers of pollutant dispersal. The month‐wise PM10 and PM2.5 data of 2022 and 2023 were obtained from the West Bengal Pollution Control Board. Meteorological datasets such as wind speed (m/s) and wind direction (degree) were collected from the NASA power access website. The HYSPLIT (Hybrid Single‐Particle Lagrangian Integrated Trajectory) model was applied to identify the pollutant's trajectories. Results showed that Purulia station stood highest in case of absolute AQI 715 (23‐1‐2022 at 7 a.m.), PM2.5 483.47 µg/m3 (23‐1‐2022 at 8 a.m.), and PM10 682.28 µg/m3 (23‐1‐2022 at 7 a.m.), respectively. During winter, the vertical expansion of particles was within the 100‐m boundary layer while during summer, it dispersed vertically and crossed 2000 m above the ground surface due to the combined effect of atmospheric conditions such as wind speed, wind direction, air pressure, and temperature. Moreover, the industrial outputs of Jharkhand and West Bengal play a significant role in elevating the pollution level. Plantation of suitable pollution‐resistant plants including Banyan (Ficus bengalensis), Mango (Mangifera indica), Peepul (Ficus religiosa), Guava (Psidium guajava), Kadam (Neolamarkia cadamba), Neem (Azadirachta indica) is a suitable management technique against pollution in this region.
Introduction
Authors: Ambühl Michael , Brusoni Stefano , Niedworok Anja , Gutmann Martin 
Published: July 2024

AbstractThis book explores how cooperatives can and are meeting the challenges of a changing world. While concepts to describe the dire and unpredictable state of our world have proliferated—VUCA (Bennis & Nanus, 2007), poly-crisis (WEF), tipping-point (Lenton et al., 2019), wicked problems (Reinecke & Ansari, 2016), grand societal challenges (Ferraro et al., 2015), to name but a few—scientists across diverse disciplines are clear that the present is a particularly perilous time for our global civilization. Climate change has already begun to impose severe human and financial costs across the world. Digitalization has changed how we do business and relate to one another, in some cases, such as with generative AI, essentially overnight. At the same time, violent conflict and geopolitical tensions are again affecting the lives of millions. Across a host of other social, economic, and ecological themes—such as gender equality, poverty, and deforestation—our progress has stalled, if not reversed, as measured by the Sustainable Development Goals (Gutmann & Gorman, 2022).
Cooperative Ecosystems: Contents, Perspectives, and Challenges
Authors: Theurl Theresia 
Published: July 2024

AbstractBoth ecosystems and cooperatives are entrepreneurial responses to technical, economic, and social challenges. Both are collaborative organizations. Companies or individuals work together in networks to achieve better results than they would alone. The design of networks shows great diversity. For example, some are more stability-oriented, others flexibility-oriented. Three types of ecosystems have emerged: Business ecosystems, platform-, and data-based ecosystems. Their configuration is based on flexibility and agility and a low degree of formalization. Although these characteristics are positive in a dynamic environment, the deficiencies in the mechanisms of stabilization and participation are criticized. Shared success can stabilize. For this to happen, however, governance must include appropriate incentives for actors to decide in their common interest in dilemma situations, which is also in their own interest in the longer term. The advance of digitization, data management, and value creation via platforms is leading to a further increase in collaborative business models and their differentiation. Ecosystems can take different forms of institutionalization, including those as cooperatives. Cooperatives are characterized by their advantages in stabilization and participation. They are therefore well suited as a form of institutionalization for ecosystems. Here it is argued that cooperatives are ecosystems, while ecosystems can be cooperatives.
The Evolution and Evaluation of the Italian Legislation on Social Cooperatives and Social Enterprises: Facilitator or Obstacle to Their Diffusion?
Authors: Velmer Silvia 
Published: July 2024

AbstractHistorically, the Italian cooperative movement has represented a pivotal backbone of the national economy, since cooperatives were able to satisfy their members’ needs through the provision of products and services at affordable conditions. Started as grassroot organizations to answer local social needs, social cooperatives have become key actors in the provision of welfare services in Italy over the last decades. The legal acknowledgment came long after the establishment of social cooperatives in the civil society and the legal framework defined social cooperatives as the first multistakeholder entrepreneurial form with a social mission, rather than a profit maximization objective. Several laws on socially-oriented organizations have followed. Over time, social cooperatives have progressively accomplished the social mission of cooperative organizations, while cooperatives are more focused on growth. In the context of grand societal challenges, the strong orientation of social cooperatives on their social impact and their embeddedness in the local territory supports them in the development and implementation of local resolution to these global challenges.
Digital Transformation and Solidarity in Cooperatives
Authors: Sturn Richard 
Published: July 2024

AbstractThe digital transformation amounts to a fundamental reorganisation of the entire institutional setting. Potentials and dangers include new power asymmetries and a precarious “carving out” of specific functions of “traditional” institutions. Digital tools are particularly relevant for knowledge-based and data-intensive activities, goods and services. Based on an institutional-theoretical framework specifically suited to the comparative discussion of cooperatives, firms and markets, the potential functionality of cooperatives in a digitalised world is found to be promising in specific ways.
Experimental and Simulation Study on the Stress Characteristics of Precast U-Shaped Beam Slab of Prestressed Concrete for High-Speed Railways
Authors: Zhang Binghe , Yang Yicai , Jiang Haijun , Yue Zhangsheng , Wan Shumin 
Published: July 2024

AbstractThe precast U-shaped beam slab of prestressed concrete is a crucial structural form in railway bridge construction, with its stress characteristics directly affecting the safety and stability of railway bridges. This study examines the stress characteristics of the slab track, including transverse bending, shear lag effects, and the stress state at the junction between the web and the bottom slab. It selects precast U-beams from actual field projects to investigate the transverse bending performance, shear lag effects, and stress conditions at the junctions through experimental studies. Additionally, by integrating the results of linear and nonlinear finite element analysis, it summarizes the stress characteristics of precast U-shaped beam slabs made of prestressed concrete. This provides references for the design and construction of precast U-shaped beam slabs of prestressed concrete.
Study on Dynamic Porosity and Dynamic Characteristics of Unsaturated Soils
Authors: Zhao Jiaxin 
Published: July 2024

AbstractUnder dynamic load, the porosity of unsaturated soil will change correspondingly, affecting the research accuracy of soil. Therefore, a dynamic response model of unsaturated soil considering dynamic porosity is established based on mixture theory to reveal the dynamic characteristics of unsaturated soils fully. The Comsol Multiphysics PDE is used to analyze the porosity change and dynamic response characteristics of two-dimensional unsaturated soil under vertical harmonic load. The numerical results show that the difference in the upper boundary is an essential factor affecting the dynamic characteristics of the subgrade. Compared with the upper boundary impervious to water and air, the pressure of the liquid and gas phases is zero, and the change of porosity and vertical displacement is more prominent. When considering the dynamic porosity, the porosity decreases under the load, and the resistance becomes more prominent when the soil skeleton is compressed, so the vertical displacement decreases, resulting in a corresponding decrease in liquid and gas phase pressure.