bluuebunny/crossref_metadata_2025_split huggingface dataset:
Co-operative investment by downstream rivals: network sharing in telecom markets
Authors: Foros Øystein , Hansen Bjørn , Vergé Thibaud 
Published: July 2023

AbstractEver-increasing data consumption and evolving technologies make cooperation on investments and network sharing crucial issues in mobile telecommunications markets. In this paper, we analyze incentives for cooperation and investment in product quality. Generalizing quality investment in a Hotelling duopoly model, we allow investment to have heterogeneous effects on consumers’ changing demand responsiveness to prices. If the effect of investment on demand elasticity is weak, consumer surplus and total welfare are higher when firms are prevented from cooperating on quality investment. Otherwise, firms should be allowed to jointly decide on quality improvements and share these improvements as long as they compete in the downstream markets.
Knowledge landscapes and emerging trends of cardiorenal syndrome type 4: a bibliometrics and visual analysis from 2004 to 2022
Authors: Li Han , Liu Tongtong , Yang Liping , Ma Fang , Wang Yuyang , Zhan Yongli , Mao Huimin 
Published: July 2023

Abstract
Purpose
To evaluate the key topics and emerging trends in the field of cardiorenal syndrome type 4 (CRS-4) by bibliometrics and visual analysis.

Methods
Citespace, VOSviewer, and Bibliometrix package were used to analyze the collected data from the Web of Science Core Collection, including publication trends, leading countries, active authors and institutions, co-cited references, journals, and keyword analysis.

Results
Finally, 2267 articles were obtained. From 2004 to 2022, the number of publications was increasing year by year. A total of 735 authors from 543 institutions in 94 countries/regions participated in the publication of CRS-4 field, which were mostly from North America and Europe. Most of the co-cited references were reviews or guidelines from kidney/heart specialist journals or top journals. The journals concerning nephrology had a higher academic influence in this field. Oxidative stress and inflammation remained hot topics in CRS-4 research, as well as uremic toxins. Fibroblast growth factor 23 and klotho were emerging trends in recent years. Sodium glucose cotransporter 2 (SGLT2) inhibitors were the latest frontier hot spots. Future research advances may pay more attention to the prevention and prognosis assessment of CRS-4.

Conclusion
Our study provides some key information for scholars to determine the direction of future research.
Heterogeneity in family firm finance, accounting and tax policies: dimensions, effects and implications for future research
Authors: Bergmann Niklas 
Published: July 2023

AbstractFamily firms, as a unique organizational form, are associated with distinct finance, accounting, and tax behaviors. Prior research indicates that heterogeneity among family firms is linked to significant variation concerning these outcomes. However, the scope of dissimilarities, their empirical operationalization, and the corresponding effects of heterogeneity remain largely unexplored. Therefore, this study maps the dimensions of family firm heterogeneity addressed in extant research based on a systematic review of 91 articles published between 1999 and 2021. Focusing on heterogeneity in corporate governance and wider firm characteristics, the most relevant effects of heterogeneity for family firm finance, accounting, and tax policies are discussed in depth. The results across the 24 identified dimensions of heterogeneity show that heterogeneity is a key factor to be considered by family business scholars. Previous heterogeneity research has specifically focused on heterogeneity rooted in differences concerning the firms’ management, ownership structure, board composition, and transgenerational issues. However, this study also finds that additional conceptual and practical challenges emerge at the heterogeneity level of analysis. Several recommendations for advancing the understanding of family firm heterogeneity have been derived. In particular, the results indicate a need to distinguish more clearly between sources of heterogeneity that are strictly specific to family firms and those that extend beyond the family firm level, thereby proposing a refined, more restricted approach toward family business heterogeneity.
Changes in perception and the effects of personal attributes in decision-making as imaginary future generations: evidence from participatory environmental planning
Authors: Hara Keishiro , Naya Masahiro , Kitakaji Yoko , Kuroda Masashi , Nomaguchi Yutaka 
Published: July 2023

AbstractWe conducted a Future Design deliberation workshop on the theme of the “3rd Environmental Master Plan” of Suita City, Osaka Prefecture over four sessions in 2019, with the participation of both city residents and officials of the city government. To condition the deliberations of participants, we adopted the method of Imaginary Future Generations (IFGs) and analyzed its impact on their future vision of the city in 2050, policy options needed to shape that future, and changes in their perceptions. We also investigated how the adoption of IFGs affects the relationships between personal attributes and the changes in their perception. The results of variance analysis and multiple linear regression analysis based on data from the deliberations and questionnaire surveys of participants revealed the following: (1) the content and quality of the 2050 vision of society and policy options conceived from the perspective of the IFGs significantly differed from those conceived from the perspective of the current generations; (2) IFGs heightened certain perceptions, such as “a sense of crisis about the future” and “a shared recognition of goals that are desirable for society as a whole”; and (3) although the degree of “critical thinking”, as a disposition of individuals, influences the heightening of perceptions in decision-making from the perspective of the current generations, when IFGs is adopted, the degree of “critical thinking” seems to be no longer a factor in heightening these perceptions. These findings could be useful for designing mechanisms to facilitate sustainable decision-making that considers the interests of future generations.
Propensity-matched analysis of robotic versus sternotomy approaches for mitral valve replacement
Authors: Yan Wenlong , Wang Yangyang , Wang Wei , Wang Qingjiang , Zheng Xin , Yang Sumin 
Published: July 2023

AbstractTo compare early and medium-term outcomes between robotic and sternotomy approaches for mitral valve replacement (MVR). Clinical data of 1393 cases who underwent MVR between January 2014 and January 2023 were collected and stratified into robotic MVR (n = 186) and conventional sternotomy MVR (n = 1207) groups. The baseline data of the two groups of patients were corrected by the propensity score matching (PSM) method. After matching, the baseline characteristics were not significant different between the two groups (standardized mean difference < 10%). Moreover, the rates of operative mortality (P = 0.663), permanent stroke (P = 0.914), renal failure (P = 0.758), pneumonia (P = 0.722), and reoperation (P = 0.509) were not significantly different. Operation, CPB and cross-clamp time were shorter in the sternotomy group. On the other hand, ICU stay time, post-operative LOS, intraoperative transfusion, and intraoperative blood loss were shorter or less in the robot group. Operation, CPB, and cross-clamp time in robot group were all remarkably improved with experience. Finally, all-cause mortality (P = 0.633), redo mitral valve surgery (P = 0.739), and valve-related complications (P = 0.866) in 5 years of follow-up were not different between the two groups. Robotic MVR is safe, feasible, and reproducible for carefully selected patients with good operative outcomes and medium-term clinical outcomes.
Volume of Components of Lelong Upper-Level Sets
Authors: Do Duc Thai , Vu Duc-Viet 
Published: July 2023

AbstractWe prove an upper bound for the volume of maximal analytic sets on which the generic Lelong number of a closed positive current is positive. As a particular case, we give a uniform upper bound on the volume of the singular locus of an analytic set in terms of its volume on a compact Kähler manifold.
A Taxonomy of Factors Influencing Perceived Safety in Human–Robot Interaction
Authors: Akalin Neziha , Kiselev Andrey , Kristoffersson Annica , Loutfi Amy 
Published: July 2023

AbstractSafety is a fundamental prerequisite that must be addressed before any interaction of robots with humans. Safety has been generally understood and studied as the physical safety of robots in human–robot interaction, whereas how humans perceive these robots has received less attention. Physical safety is a necessary condition for safe human–robot interaction. However, it is not a sufficient condition. A robot that is safe by hardware and software design can still be perceived as unsafe. This article focuses on perceived safety in human–robot interaction. We identified six factors that are closely related to perceived safety based on the literature and the insights obtained from our user studies. The identified factors are the context of robot use, comfort, experience and familiarity with robots, trust, the sense of control over the interaction, and transparent and predictable robot actions. We then made a literature review to identify the robot-related factors that influence perceived safety. Based the literature, we propose a taxonomy which includes human-related and robot-related factors. These factors can help researchers to quantify perceived safety of humans during their interactions with robots. The quantification of perceived safety can yield computational models that would allow mitigating psychological harm.
Pathogen spectrum of community acquired pneumonia in people living with HIV (PLWH) in the German CAPNETZ-Cohort
Authors: Schleenvoigt Benjamin T. , Ankert Juliane , Barten-Neiner Grit , Voit Florian , Suttorp Norbert , Boesecke Christoph , Hoffmann Christian , Stolz Daiana , Pletz Mathias W. , Rohde Gernot , Witzenrath Martin , Panning Marcus , Essig Andreas , Rupp Jan , Degen Olaf , Stephan Christoph ,   for the CAPNETZ Study Group, Dreher M. , Cornelissen C. , Knüppel W. , Creutz P. , Mikolajewska A. , le Claire A. , Benzke M. , Bauer T. , Krieger D. , Prediger M. , Schmager S. , Kolditz M. , Schulte-Hubbert B. , Langner S. , Hüfner A. , Welte T. , Freise J. , Nawrocki M. , Fuge I. , Freise J. , Naim J. , Kröner W. , Illig T. , Klopp N. , Kroegel C. , Moeser A. , Bahrs C. , Drömann D. , Parschke P. , Franzen K. , Käding N. , Wouters M. , Walraven K. , Braeken D. , Buschmann H. , Zaruchas A. , Schaberg T. , Hering I. , Albrich W. , Waldeck F. , Rassouli F. , Baldesberger S. , Wallner M. 
Published: July 2023

Abstract
Objectives
The objective of this study was to identify the pathogen spectrum of community acquired pneumonia in people living with HIV (PLWH), and to compare it with a matched HIV negative group in order to reassess therapeutic strategies for PLWH.

Methods
Seventy-three (n = 73) PLWH (median CD4 3–6 months before CAP: 515/µl; SD 309) with community acquired pneumonia (CAP) were matched with 218 HIV-negative CAP controls in a prospective study design. Pathogen identifications used blood culture, samples from the upper and lower respiratory tract (culture and multiplex PCR) and urinary pneumococcal and legionella antigen test.

Results
Although the vaccination rate among PLWH with CAP was significantly higher (pneumococcal vaccination: 27.4 vs. 8.3%, p < 0.001; influenza vaccination: 34.2 vs. 17.4%, p = 0.009), pneumococci were found most frequently as pathogen among both PLWH (n = 19/21.3%) and controls (n = 34/17.2%; p = 0.410), followed by Haemophilus influenzae (PLWH, n = 12/13.5%, vs. controls, n = 25 / 12.6%; p = 0.850). Staphylococcus aureus was found equally in 20.2 and 19.2% in PLWH and controls, but infection or colonization could not be distinguished. Mortality during 6-month follow-up was significantly higher for PLWH (5/73, or 6.8%) versus controls (3/218, or 1.4%), however with lower case numbers than previously reported. Typical HIV-associated pathogens such as Pneumocystis jirovecii were found only exceptionally.

Conclusions
Our study underscores the persistent clinical burden of CAP for PLWH. From pathogen perspective, empirical antibiotic treatment for CAP in PLWH on antiretroviral therapy should cover pneumococci and Haemophilus influenzae and may be adopted from valid common recommendations.
Beyond Implementation: Mental Health Professionals’ Perspectives on What is Needed to Sustain Providing the Illness Management and Recovery Program
Authors: Ørjasæter Kristin B. 
Published: July 2023

AbstractAlthough increasingly more mental health services worldwide have implemented Illness Management and Recovery (IMR), the evidence-based psychosocial program, research has shown the program’s low rate of sustainability over time. Thus, knowledge about what professionals perceive to be important for sustaining IMR program is needed. The aim of this study was to explore the perspectives of professionals who work at sites that have offered IMR for at least 6 years regarding what they perceive as being crucial for sustaining IMR program. Focus group interviews were conducted with 36 mental health care professionals in Norway who have experience with providing group-based IMR treatment to people with severe mental illness. Data from the interviews were subjected to reflexive thematic analysis. Three factors were determined to be essential to promoting the sustainable practice of IMR: anchoring in the organization, access to training and guidance, and the allocation of time for preparation and reflection. Achieving IMR’s long-term sustainability requires building joint ownership and a shared future vision for the program within the administering organization. To motivate professionals to continue providing IMR treatment, sufficient time and space are needed in order to provide professionals with training, continued guidance and supervision, and time to reflect on their clinical practice. Moreover, engaged leadership is crucial to facilitating professionals’ access to required resources.
On some invariants of cubic fourfolds
Authors: Gounelas Frank , Kouvidakis Alexis 
Published: July 2023

AbstractFor a general cubic fourfold $$X\subset \mathbb {P}^5$$

X
⊂

P

5

with Fano variety F, we compute the Hodge numbers of the locus $$S\subset F$$

S
⊂
F

of lines of second type and the class of the locus $$V\subset F$$

V
⊂
F

of triple lines, using the description of the latter in terms of flag varieties. We also give an upper bound of 6 for the degree of irrationality of the Fano scheme of lines of any smooth cubic hypersurface.
Impact of changes in sea surface temperature due to climate change on hurricane wind and storm surge hazards across US Atlantic and Gulf coast regions
Authors: Salarieh Babak , Ugwu Izuchukwu A. , Salman Abdullahi M. 
Published: July 2023

AbstractCommunities in US coastal regions are threatened by hurricanes more than ever, and the effect of climate change may further aggravate the risk and corresponding losses in the future. This paper investigates the potential impact of changes in sea surface temperature (SST) on hurricane wind and storm surge hazards for the Atlantic and Gulf coast regions. An empirical track model that uses SST as an input is used to account for the effect of temperature variations on hurricane intensity. The storm surge hazard is modeled using Sea, Lake, and Overland Surges from Hurricanes (SLOSH). Four projected future climate conditions based on the Intergovernmental Panel on Climate Change (IPCC) emission scenarios are adopted to capture the effect of changes in SST on future hurricane intensity. The impacts of changes in hurricane frequency and sea-level rise are also considered. The results show that the projected increase in the average SST will lead to more intense hurricanes by the end of the twenty-first century. An increase in wind speed for all the studied sites with varying degrees is observed. The most significant increase in wind speeds is observed on the northeast Atlantic coast, with some areas showing an increase of more than 60% for high return period winds under the most extreme future climate scenario. This is because a higher increase in SST is observed in such areas, which will lead to more intense hurricanes in the future. An increasing trend is also observed for the storm surge for all the study sites in the future. However, the largest increase in predicted surge heights is mainly seen in the Gulf Coast locations.
A cost-effective stereo camera-based system for measuring crack propagation in fibre-reinforced concrete
Authors: Mena-Alonso Álvaro , Latorre-Carmona Pedro , González Dorys C. , Díez-Pastor José F. , Rodríguez Juan J. , Mínguez Jesús , Vicente Miguel A. 
Published: July 2023

Abstract
This paper shows a new low-cost technology for the measurement of crack propagation in quasi-fragile materials based on a stereo pair of cameras and LED light spots. The two cameras record the displacement experienced by a series of LED white lights. For each frame, the X, Y and Z 3D coordinates of all the centroids of the LED points are obtained. From this information, it is possible to determine the variation of the distance between any two of them. In this case, 2 strips of 12 LED lights each were arranged in such a way that the points of both strips coincided in pairs in height. The algorithm made it possible to monitor the increase in distance that occurred between each pair of lights at the same height. The paper shows the mathematical basis of this technological solution. A test has been carried out by installing this system in a concrete cube 150 mm side and subjected to a wedge-splitting test. The results show that it is possible to monitor the crack propagation (position of the crack front) during the test and to know the crack width too. At present, the accuracy of this technique is only limited by the camera resolution and the computer processing capability.
Emerging Regulations on Content Moderation and Misinformation Policies of Online Media Platforms: Accommodating the Duty of Care into Intermediary Liability Models
Authors: Machado Caio C. V. , Aguiar Thaís Helena 
Published: July 2023

AbstractDisinformation, hate speech and political polarization are evident problems of the growing relevance of information and communication technologies (ICTs) in current societies. To address these issues, decision-makers and regulators worldwide discuss the role of digital platforms in content moderation and in curtailing harmful content produced by third parties. However, intermediary liability rules require a balance that avoids the risks arising from the circulation at scale of harmful content and the risks of censorship if excessive burdens force content providers to adopt a risk-averse posture in content moderation. This piece examines the trend of altering intermediary liability models to include ‘duty of care’ provisions, describing three models in Europe, North America and South America. We discuss how these models are being modified to include greater monitoring and takedown burdens on internet content providers. We conclude with a word of caution regarding this balance between censorship and freedom of expression.
Insights on the Interplay of Rifting, Transcrustal Magmatism and Formation of Geothermal Resources in the Central Segment of the Ethiopian Rift Revealed by 3‐D Magnetotelluric Imaging
Authors: Dambly M. L. T. , Samrock F. , Grayver A. V. , Saar M. O. 
Published: July 2023

AbstractThe Main Ethiopian Rift is accompanied by extensive volcanism and the formation of geothermal systems, both having a direct impact on the lives of millions of inhabitants. Although previous studies in the region found evidence that asthenospheric upwelling and associated decompression melting provide melt to magmatic systems that feed the tectono‐magmatic segments in the rift valley, there is a lack of geophysical models imaging these regional and local scale transcrustal structures. To address this challenge, we use the magnetotelluric method and image subsurface electrical conductivity to examine the magmatic roots of Aluto volcano, quantify and interpret the melt distribution in the crust considering established concepts of continental rifting processes and constrain the formed geothermal system. Specifically, we combined regional (maximum 30 × 120 km2) and local (15 × 15 km2) magnetotelluric data sets and obtained the first multi‐scale 3‐D electrical conductivity model of a segment of the central Main Ethiopian Rift. The model unravels a magma ponding zone with up to 7 vol. % melt at the base of the crust (30–35 km b.s.l.) in the western part of the rift and its connection to Aluto volcano via a fault‐aligned transcrustal magma system. Melt accumulates at shallow crustal depths (≥4 km b.s.l.), thereby providing heat for Aluto's geothermal system. Our model suggests that different volcano‐tectonic lineaments in the rift valley share a common melt source. The presented model provides new constraints on the melt distribution below a segment of the rift which is important for future geothermal developments and volcanic hazard assessments in the region.
Cross‐Shelf Exchanges Between the East Greenland Shelf and Interior Seas
Authors: Duyck E. , De Jong M. F. 
Published: July 2023

AbstractIncreasing freshwater fluxes from the Greenland ice sheet and the Arctic to the Subpolar North Atlantic could cause a freshening of deep convection regions and affect the overturning circulation. However, freshwater pathways from the Greenland shelf to interior seas and deep convection regions are not fully understood. We investigate exchanges of liquid freshwater between the east Greenland shelf and neighboring seas using drifter data from five deployments carried out at different latitudes along the east Greenland shelf in 2019, 2020, and 2021, as well as satellite data and an atmospheric reanalysis. We compute Ekman transport from winds and geostrophic velocity from satellite altimetry at the shelfbreak and identify the Blosseville Basin and Cape Farewell as areas favorable to cross‐shelf exchanges. We further investigate exchange processes in these regions using drifter data. In the Blosseville Basin, drifters are brought off‐shelf toward the Iceland Sea and into the interior of the Basin. As they are advected downstream, they re‐enter the shelf and are driven toward the coast. At Cape Farewell, the wind appears to be the main driver, although on one occasion we found evidence of an eddy turning drifters away from the shelf. The drifters brought off‐shelf at Cape Farewell mostly continue around Eirik Ridge, where they re‐enter the West Greenland Current. Overall, the identified export over the east Greenland shelf is limited, small scale, and intermittent, thus unlikely to flux large amount of liquid freshwater into the interior, though exchange processes could enhance mixing in the near‐shelf region.