bluuebunny/crossref_metadata_2025_split huggingface dataset:
The blue–green light‐dependent state transition in the marine phytoplankton Ostreococcus tauri
Authors: Kubota Masato , Kim Eunchul , Ishii Asako , Minagawa Jun 
Published: September 2024

Summary

We explored the adaptive mechanisms of Ostreococcus tauri, a marine picophytoplankton with a ubiquitous ocean presence. We aimed to understand its photosynthetic acclimation, as featured in the cryo‐EM structure of its photosystem I (PSI) supercomplex. This structure revealed a unique composition involving a phosphorylated Lhcp trimer bound to the PSI core along with two additional Lhcp trimers, suggesting potential state transitions for photoacclimation.

To investigate this hypothesis, we conducted a series of biochemical and physiological experiments. We analyzed absorption spectra to differentiate between PSI and PSII, particularly focusing on blue–green wavelengths, and examined the effects of specific excitation of Lhcp with green light, including its phosphorylation and the formation of the PSI‐LHCI‐Lhcp supercomplex.

Our experiments clarified the distinctive effects attributable to absorption by pigments associated with Lhcp. Exciting Lhcp with green light induced its phosphorylation, leading to the formation of the PSI‐LHCI‐Lhcp supercomplex. Notably, the functional antenna size of PSI could reversibly expand in response to green light, demonstrating its state transition capability.

These findings not only highlight the unique photosynthetic acclimation adapted to the marine environment but also suggest a possible ancestral role of state transitions in green plants, given the phylogenetic position of Prasinophyceae.
SUPERMAN Targets PHRAGMOPLAST ORIENTING KINESIN to Negatively Regulate Leaf Cell Division in Poplar
Authors: Jiang Cheng , Zhao Chunyan , Gao Hesheng , Gu Ziqi , Wu Yuehong , Wen Shuangshuang , Chen Ningning , An Yi , Huang Lichao , Lu Yongquan , Zhang Jin , Lu Meng‐Zhu 
Published: September 2024

ABSTRACTPlant organs achieve their specific size and shape through the coordination of cell division and cell expansion, processes that are profoundly influenced by environmental cues. Cytokinesis during cell division depends on the position of the cytokinetic wall, but how this process responses to environment fluctuations remains underexplored. Here, we investigated a regulatory module involving C2H2‐type zinc finger protein (C2H2‐ZFP) in leaf morphology during drought stress. A total of 123 C2H2‐ZFP members were identified through a comparative genome survey in Populus alba × P. glandulosa ‘84K’. Among them, PagSUPa, an orthologous gene of Arabidopsis SUPERMAN, was selected due to its responsiveness to drought stress and was further confirmed to play a role in leaf development. Phenotypic characterization and cellular analysis revealed that PagSUPa fine‐tunes the duration of cell proliferation in the adaxial epidermis, thereby influencing leaf morphology by modulating leaf adaxial‐abaxial polarity. Additionally, we found that PagSUPa directly suppresses the expression of PHRAGMOPLAST ORIENTING KINESIN1 (PagPOK1) and PagPOK2, genes encoding proteins involved in phragmoplast orientation and position, which results in impaired cytokinesis and cell wall organization. This study provides novel insights into the regulatory network governed by the SUP gene during leaf development, specifically in relation to cell division.
Effectiveness of Message Framing Interventions on Improving Health Outcomes for Individuals in Diabetes Health Education Communication: A Systematic Review
Authors: Zhang Wei , Ye Xiaoli , Shen Tong , Zhao Fangfang 
Published: September 2024

ABSTRACTObjectivesTo identify the effects of message‐framing interventions on improving health outcomes of individuals in diabetes health education communication.MethodsFour electronic databases including Web of Science, PubMed, EMBASE, and the Cochrane Library were the search engines used. The period of literature search was from their inception until December 2023. Randomized controlled trials (RCTs) and quasi‐experimental trials reporting the effects of message‐framing interventions for diabetes were included.ResultsThe review included 10 studies. Many studies have investigated multiple health outcomes. Of the seven studies that evaluated behavioral health‐related outcomes, all studies (7/7, 100%) found a positive effect, and four studies (4/7, 57.1%) found that there was no significant difference between gain and loss framing. Of the seven studies that assessed nonbehavioral health‐related outcomes, six studies (6/7, 85.7%) reported a positive postintervention effect, whereas four studies (4/7, 57.1%) found that loss‐framed messages were more effective. One study (1/7, 14.3%) reported that there was no effect of the message framing on mental health‐related outcomes.ConclusionsIn diabetes health education communication, message framing of gain and loss framing has a positive effect on health outcomes for individuals. The advantage of the loss framing is more significant in improving nonbehavioral health‐related outcomes.Practice ImplicationsWhen constructing a message to promote health outcomes for patients with diabetes, the message framing is worth applying, and the advantages of loss framing can be considered more.Trial RegistrationPROSPERO registration ID: CRD42023445074. https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=445074
The use of a solar simulator device to standardize microbiological decontamination of contaminated water by solar disinfection by the SODIS and MB/SODIS protocols
Authors: Rurr Janine Simas Cardoso , Paiva Juliana Patrão de , Diniz Raiane Rosales , Leitao Alvaro Augusto da Costa , Hossy Bryan Hudson , Miguel Nádia Campos de Oliveira , de Alencar Santos Lage Claudia 
Published: September 2024

AbstractConsuming microbiologically‐contaminated water is the primary cause of many water‐borne diseases and deaths worldwide. Governments aim at providing drinking water for vulnerable populations, especially through low‐cost interventions. Therefore, the solar disinfection (SODIS) of such pathogens provides a simple and cost‐effective way to obtain good quality water. In this procedure, PET bottles are filled with contaminated water and exposed to sunlight for 1–2 days. To accelerate decontamination, methylene blue (MB) dye added as a photocatalyst, boosts singlet oxygen generation upon absorbing red‐band sunlight. This study explores the use of a Sunlight Simulator (SSL) device to research and standardize the SODIS method with a vital dye as MB. PET bottles were filled with artificially‐contaminated water with Streptococcus epidermidis and Deinococcus radiodurans Gram‐positive bacteria, Escherichia coli and Salmonella typhimurium Gram‐negative bacteria, or bacteriophage λ as well. In all experiments, 50 ng/mL MB ensued a synergistic lethal effect after SSL exposure. The results indicate that bacterial and bacteriophage inactivation can be achieved in shorter times with MB‐SSL treatment compared to SSL without MB. In this sense, when compared to previous sunlight‐SODIS results, the SSL source is a reliable tool to study the parameters of both SODIS and MB‐SODIS protocols, and also a feasible tool to afford assays whenever there are unfavorable climate conditions.
What is social organizing?
Authors: Hyska Megan 
Published: September 2024

AbstractWhile scholars of, and participants in, social movements, electoral politics, and organized labor are deeply engaged in contrasting different theories of how political actors should organize, little recent philosophical work has asked what social organizing is. This paper aims to answer this question in a way that can make sense of typical organizing‐related claims and debates. It is intuitive that what social organizing does is bring about some kind of collectivity. However, I argue that the varieties of collectivity most amply theorized by analytic philosophers in recent years, including grouphood and collective intentionality, are not the right kinds to embed in a theory of social organizing. I ultimately argue that the sort of collectivity that organizing characteristically brings about is a special kind of causal complementarity among agents' actions— and that while this can exist alongside grouphood and collective intentionality, it is not the same thing as either. The notion of social organizing that emerges is one that can clarify, without trivializing, a number of pressing contemporary debates about how normal people should conduct themselves as interconnected political actors.
Isolation and characterization of plant‐pathogenic Streptomyces species associated with potato common scab disease in Türkiye
Authors: Uysal Nida , Bozkurt Adem , Elçi Eminur 
Published: September 2024

AbstractPotato common scab (PCS), a significant potato disease, negatively impacts tuber quality. The present study was conducted to isolate and characterize pathogenic Streptomyces species associated with PCS disease in Türkiye based on their morphological, physiological and molecular characteristics. Field‐grown potatoes that exhibited scab lesions were collected from four provinces in 2020–2021, and 200 bacterial isolates were obtained from netted, superficial and deep‐pitted common scab lesions. Pathogenicity assays, including in vitro tuber slice and in planta radish seedling bioassays, identified 150 pathogenic isolates. Morphological and physiological characterization of 92 selected isolates revealed several Streptomyces species that exhibited diverse mycelium colours, sporulation patterns and pigmentation. Molecular analysis using 16S rRNA sequencing, species‐specific primers, PCR‐RFLP of the 16S‐23S (ITS) region with Hpy99I restriction enzyme, and multilocus sequence analysis (MLSA) based on atpD, recA, rpoB and trpB genes revealed that S. scabiei was the dominant species, followed by S. europaeiscabiei, S. caniscabiei, S. bottropensis, S. stelliscabiei and S. turgidiscabies. PCR analysis revealed the presence of the thaxtomin synthetase genes (txtAB) in all tested samples, while the necrogenic protein (nec1) and tomatinase (tomA)‐encoding genes were absent from three and two isolates, respectively. Phylogenetic analysis of 32 representative isolates conducted with sequences from 16S rRNA, species‐specific PCR and MLSA confirmed their morphological identification and clustered them with reference strains. This study contributes to the understanding of distribution of Streptomyces species associated with PCS, and to our knowledge, is the first molecular confirmation of S. caniscabiei and S. turgidiscabies causing potato scab in Türkiye.
Identification of Magnaporthe oryzae candidate secretory effector proteins through standardizing the filtering process of the canonical parameters
Authors: Teli Basavaraj , Sarma Birinchi Kumar 
Published: September 2024

AbstractThe virulence of Magnaporthe oryzae largely hinges on its secretory effectors. Therefore, identification and thorough understanding of the effector functionality is crucial for unravelling the pathogenicity of the pathogen. In the present study, we employed a modified computational pipeline with deep machine learning techniques with an integration of Magnaporthe effector reference datasets (MOED) that predicted 434 M. oryzae candidate secretory effector proteins (MoCSEPs) from the genomic data. The reliability of the modified CSEP prediction workflow through utilization of precise parametric filtering is considered valid as it predicted 100 functional effectors (97.08%) out of 103 previously identified effector proteins within the Magnaporthe genus. Insights into secretion patterns and subcellular localization elucidated the role of these proteins in host cell recognition. Furthermore, structural classification of MoCSEPs, based on conserved motifs, combined with an exploration of their biological functions, revealed their significance in host adaptability and localization. Experimental validation done through examining expression of the MoCSEPs revealed varied secretion patterns in the resistant (40 expressed) and susceptible (92 expressed) rice cultivars at different time intervals after pathogen inoculation owing to different degrees of resistance by the host cultivars. The present work thus provides the strategic model of canonical parametric evaluation within the MOED and deepens the understanding on the role of secretory proteins of M. oryzae in establishing successful parasitic infection in rice. The predicted MoCSEPs could be used as biomarkers for disease diagnosis and tracking evolutionary shifts in M. oryzae.
Spatial variability in aeolian abrasion: Ibex Dune Field, Death Valley National Park
Authors: Dorn Taylor , Day Mackenzie 
Published: September 2024

ABSTRACTWind‐driven sediment transport drives significant landscape evolution in arid regions. Wind‐blown sand can form large dunes, or can erode exposed surfaces via abrasion. Previous works on aeolian abrasion have focused on the geomorphological features resulting from abrasion (for example, ventifacts and yardangs) through both field and wind‐tunnel experiments. However, relatively little attention has been given to how abrasion varies spatially as sand flux converges on a sand sink, such as a dune field. This work studied an arid landscape using field measurements and collected weather data to quantitatively measure how abrasion varies in space around the Ibex Dune Field. From March 2021 to October 2022, the wind conditions at two separate locations in the region were monitored, saltating sand flux was captured using fully rotating sediment traps, ventifacts were mapped along several transects, and abrasion‐related mass loss on mounted gypsum plaster samples was measured. These results suggest that the magnitude of abrasion is approximately inversely proportional to the distance away from the dune field, increasing in magnitude as sands converge and fluxes increase at the dune field sink. Comparison between modern winds and ventifact orientations suggests that additional complexity, not aeolian processes alone, may be shaping the morphology of surface cobbles.
The normative stakes of Foucault's engagement with neoliberalism: Seduction, invention, and normalization
Authors: D'Cruz Leonard 
Published: September 2024

AbstractThis article critically examines Foucault's engagement with neoliberalism. While Foucault declares that his analysis of this tradition is primarily descriptive, I argue that he continually questions whether neoliberalism is less disciplinary and biopolitically normalizing than traditional forms of liberalism. Although Foucault does not endorse neoliberalism as a prescriptive solution to these problems of normalization, his interest in such problems is consistent with his tendency to privilege freedom over other values like justice and equality. This helps to clarify the normative stakes of Foucault's analysis while rejecting any suggestion that he was invested in neoliberalism as a comprehensive political program. Indeed, I repudiate the claim that he was “seduced” by neoliberalism. Furthermore, I reject the idea that he was trying to “invent” a distinctively socialist governmentality through the prism of neoliberalism. Finally, I consider the broader significance of this discussion for normative political philosophy.
Pre‐engraftment bacteremia after allogeneic hematopoietic cell transplantation without primary fluoroquinolone antibacterial prophylaxis
Authors: Nguyen Aude , Fender Jordan , Courjon Johan , Fischer Adrien , Mappoura Maria , Morin Sarah , Giannotti Federica , Mamez Anne‐Claire , Chalandon Yves , Masouridi‐Levrat Stavroula , Neofytos Dionysios 
Published: September 2024

AbstractBackgroundBacteremia is a common complication in allogeneic hematopoietic cell transplant recipients (alloHCTr), especially during the pre‐engraftment period. International guidelines recommend antibacterial prophylaxis (ABP), despite potential selection for multidrug‐resistant organisms (MDRO). Limited contemporary data exist on the epidemiology of pre‐engraftment bacteremia in alloHCTr, who do not receive ABP.MethodsWe performed a retrospective observational single‐center cohort study including all consecutive adult alloHCTr (2015–2021), investigating the incidence, risk factors, and outcomes of bacteremia during the engraftment period. Primary fluoroquinolone (FQ) ABP is not routinely administered in our center.ResultsAmong 421 patients identified, 124 bacteremia episodes were observed in 121/421 (29%) alloHCTr. The median time to the 1st bacteremia episode was 9 days (IQR 6–11). Most (105/124, 85%) episodes were monomicrobial, while >1 pathogens were identified in 19/124 (15%) episodes. Overall, 152 pathogens were isolated, with a predominance of Gram‐positive (118/152, 78%), including coagulase‐negative staphylococci (n:47), streptococci (n:46), and enterococci (n:15), followed by Gram‐negative bacteria (GNB, 30/152, 20%), and anaerobes (4/152, 3%). There were 2/152 (1%) MDRO (extended‐spectrum beta‐lactamase producing) GNB. Multivariable analyses identified age >40‐year‐old (OR 2.4, P = 0.02), male gender (OR 1.8, P = 0.02), and a haploidentical/mismatched unrelated donor (OR 2.5, P < 0.001) as independent risk factors for bacteremia. All cause 30‐day mortality among alloHCTr with bacteremia was 0.8% (1/121): one patient died due to an HCT‐related complication.ConclusionDespite lack of primary FQ ABP, low rates of bacteremia were observed during the pre‐engraftment period, with low MDRO prevalence and mortality. Our findings may allow to revisit the need for primary universal FQ ABP in high‐risk neutropenic hematology patients.
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Dosier Comunicación + Ciencia, Tecnología y Sociedad
Authors: Escobar-Ortiz Jorge , Moreno-Martínez Óscar , Guerrero-Castro Javier 
Published: September 2024

La política científica es un campo de reflexión y acción reciente. Se inauguró a mediados del siglo XX tras las guerras mundiales, con documentos fundacionales, como el famoso informe de Vannevar Bush, intitulado Science: The Endless Frontier (1945). La política científica, como campo perteneciente a las políticas públicas, se propuso desde el inicio la resolución de problemáticas sociales asociadas con la ciencia y la tecnología. Esto incluía un foco importante en procesos de investigación, referidos a su apoyo, promoción e infraestructura, así como a la formación de capacidad humana para realizarlos, pero también apelaba a elementos mucho más amplios que buscaban crear un ambiente favorable para la ciencia y la tecnología en la sociedad. Museos, publicaciones especializadas y divulgativas, programas de radio y televisión, bibliotecas y sistemas de información fueron algunos de los elementos que se tomaron como centrales para fortalecer el conjunto de la política científica.
Reduction of the Emission Footprint of Gas Turbines in Future Energy System Scenarios Through Optimized Hydrogen Admixture Strategies
Authors: Goßrau Christian , Petersen Nils Hendrik , Wirsum Manfred 
Published: September 2024

Abstract
Within the energy sector, the mitigation of climate change necessitates a paradigm change toward the replacement of conventional with sustainable power generation technologies. Due to the inherent volatility of renewable power generation technologies, dispatchable components, such as gas turbines (GT) will have to be used increasingly for residual load balancing. In addition, GTs are expected to operate fewer hours per year, more flexibly, and at lower capacities. However, fuel utilization in GT is inherently linked to emissions. As a potentially CO2-free energy carrier, hydrogen is a promising fuel for GTs and manufacturers are working on suitable combustor technologies. However, the availability of large quantities of CO2-free H2 remains unclear in the near future. Other pollutants such as NOx and emissions due to incomplete combustion are formed differently in part load. Therefore, optimizing natural gas substitution based on available H2 quantities and load profiles can improve the overall emission footprint beyond just reducing CO2 emissions. In this study, a physical-based gas turbine performance model and an emission calculation tool are used to derive an optimized H2 admixture strategy for different load profiles. Characteristic load demand scenarios are derived from actual load profiles of gas power plants and the emission footprints are comprehensively evaluated by different environmental impact categories. In general, the emission footprint is increased significantly and moderately for capacity reduction and flexibility increase of GT operation. The availability of H2 in the near future is derived from forecasts for Germany, and the corresponding quantities are allocated to the partial loads according to the optimized strategy. In most scenarios, the addition of H2 is associated with a reduction in emissions compared to conventional fossil fuel operation. The greatest leverage of H2 admixture in reducing the environmental footprint is found when applied from the lowest load up, thus assisting in the startup and shut-down process.
Performance of sCO2 Cycles for Waste Heat Recovery and Techno-Economic Perspective as Gas Turbine Bottoming Cycle
Authors: Thielens Vincent , Demeyer Frederiek , Paepe Ward De 
Published: September 2024

Abstract
Supercritical carbon dioxide (sCO2) cycles are compact, cost-effective and widely adaptable to various heat sources, including the waste heat from gas turbine (GT) exhaust gases. While the addition of a steam cycle enhances the typical 40% efficiency of GTs up to 60%, their substantial investments render them less appealing for smaller GTs. This creates an opportunity for sCO2 cycles, but a comprehensive comparison of their performance with that of steam across a range of applications remains lacking. Moreover, their applicability to various industrial scenarios based on existing installations is missing from a techno-economic standpoint. To address these needs, four promising sCO2 cycles are evaluated and optimized using Aspen, and compared with the simple steam cycle. Their techno-economic performances are then investigated for 20 industrial GTs of different size up to the larger combined cycle gas turbine (CCGT) units incorporating amine-based carbon capture systems. Due to the significant investments required by the carbon capture unit, the implementation of a CC unit is only investigated for the largest CCGT units. The analysis yielded performance maps demonstrating comparable performances for sCO2 and steam cycles, as well as significant techno-economic advantages for sCO2 bottoming cycles for smaller GTs. However, when it comes to larger GTs combined with reheats and expansions steam cycles, sCO2 cannot outperform them in current technological standards. Nevertheless sCO2 cycles offers an attractive alternative, facilitating cogeneration. Among the different approaches designed to integrate the heat requirements of amine-based capture, steam cycles have always proved more suitable because of the thermal stability of amines. In conclusion, the research underscores the cost-effectiveness and adaptability of sCO2 cycles for heat recovery applications, particularly as bottoming cycles for smaller GTs, while larger GTs present a challenge. The work conducted sheds light on the substantial promise of sCO2 cycles, encouraging further exploration and implementation of these systems in the energy sector.