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Realistic daily discharge modelling in data-deficient regions using DL-assisted, parametrically-optimized hydrological model
Retraction Note: The economic commitment of climate change
Disassociating cerebral vasomotion from low frequency spontaneous neurovascular coupling
Abstract Vasomotion, vascular oscillations at ~ 0.1 Hz, may serve as a biomarker and therapeutic target for neurodegenerative diseases, but its origins, structure across brain vasculature, and correlation with neural activity remain unclear. This study examined the spatiotemporal characteristics of cerebral vasomotion and its relationship to neural activity in anaesthetised Hooded Lister rats using simultaneous recordings of neuronal activity and haemodynamics in motor and whisker barrel cortices. In a subset of rats, tissue oxygen was also measured. Blood pressure was pharmacologically modulated to alter vascular oscillations. We found that vasomotion was driven by the arterial tree. Two prominent activity patterns emerged: fast vasomotion across the entire hemisphere and slow vasomotion seen as a travelling wave running through the surface arteries. Moreover, vasomotion was associated with low tissue oxygen and was largely independent of spontaneous neural activity and therefore not a product of neurovascular coupling.
Mediating effects of physical activity, BMI, and dietary iron intake on the relationship between depression and chronic headaches
Abstract Depression is a significant psychiatric condition linked to chronic headache outcomes, necessitating an exploration of the mechanisms involved in this relationship. This study aimed to examine whether physical activity, body mass index (BMI), and dietary iron intake mediate the relationship between depression and chronic headaches using path analysis. This study employed a cross-sectional approach. A total of 9,918 participants aged 35–65 years were selected through convenience sampling from the baseline phase of the Ravansar Non-Communicable Disease (RaNCD) Cohort Study, part of the larger PERSIAN cohort. Data collection included sociodemographic and clinical information, alongside standardized self-report instruments for assessing physical activity and dietary intake (Food Frequency Questionnaire). The statistical analyses were performed using SPSS version 22 and MPLUS version 8.3. Path analysis was used to assess the direct, indirect, and total effects of depression on chronic headaches. The results demonstrated a significant direct effect of depression on chronic headaches (β = 0.07, 95% CI: 0.05 to 0.08). Additionally, significant indirect effects were observed through the mediating variables of BMI (β = 0.001, 95% CI: 0.000 to 0.002) and dietary iron intake (β = 0.002, 95% CI: 0.001 to 0.002). In contrast, the indirect pathway through physical activity was not statistically significant (β = 0.000, 95% CI: -0.001 to 0.000). Increased BMI and reduced dietary iron intake, influenced by depression, were associated with a higher prevalence of chronic headaches. These findings suggest that interventions targeting chronic headaches should not only address depressive symptoms but also incorporate strategies for weight management and improving dietary iron intake. A comprehensive approach that integrates both psychological and physiological components may enhance treatment outcomes. Future studies employing longitudinal designs are warranted to further elucidate these relationships and inform more effective intervention strategies.
Long-term effects of nitrogen fertilization on methane emissions in drained tropical peatland
Recovery of iron from iron tailings by co-pyrolysis with coal gangue: process optimization and economic evaluation
A multi-task learning model for evaluating non-tumor gastric diseases indicators in whole slide images
Evaluation of compartmentalization systems to study microbial interactions
Abstract With some exceptions, wine fermentation has increasingly relied on the use of Saccharomyces cerevisiae starters since the last decades of the past century. However, there is growing interest on the understanding of spontaneous wine fermentation, as well as on the use of complementary non- Saccharomyces wine starters. This in turn raises the question of the importance of interspecific interactions in winemaking and the underlying mechanisms. An important question about these interspecies recognition mechanisms is whether or not it is mediated by physical contact between yeast cells. To address this topic, different laboratories have developed diverse devices to cultivate at least two yeast species in the same growth medium without cell-to-cell contact between them. In this work, we compared four of the most popular systems and found that one of them (twin-bottles exchange through a flat membrane) showed very limited metabolite exchange. Among the other systems (Transwell, dialysis tube, or active exchange through hollow fiber cross-flow filtration devices), each one showed specific characteristics that made them more or less suitable, depending on the objectives of each experiment. The option showing the best versatility and efficiency was the use of active exchange. Our results highlight the importance of carefully characterizing the compartmentalization system when drawing conclusions about the impact of cell-to-cell contact in fermentation experiments.
Correction: Detection of a sympatric cryptic species mimicking Aedes albopictus (Diptera: Culicidae) in dengue and Chikungunya endemic forest villages of Tripura, India, posing a daunting challenge for vector research
The modified cardiometabolic index as a simple screening tool for cardiovascular disease risk: a cohort study
Investigation of road transport-based greenhouse gas prediction models and the use of ıntelligent transportation systems for emission reduction
Application of CO₂ fracturing blasting in mountain tunnel construction adjacent to existing structures
Emerging importance of remnant cholesterol compared with low-density lipoprotein cholesterol in cardiovascular risk assessment
Author Correction: Cleavage of RIPK1 by caspase-8 is crucial for limiting apoptosis and necroptosis
Functional and proteomic analysis of Lactobacillus rhamnosus-derived extracellular vesicles with antioxidant and anti-inflammatory activity
Abstract Extracellular vesicles (EVs) derived from lactic acid bacteria have gained attention as mediators of host-microbe interaction. However, their molecular characteristics compared to cell-derived vesicles (CDVs) remain poorly understood. In this study, we isolated EVs and CDVs from Lactobacillus rhamnosus and characterized them throughout proteomic and functional analyses. Both vesicle types displayed spherical morphology as observed by nanoparticle tracking analysis and transmission electron microscopy. Western blotting revealed distinct protein profiles, with HSP70 specifically detected in EVs. Proteomic profiling using LC-MS/MS identified a total of 1,342 proteins, including 114 unique to CDVs. Differential expression proteins analysis showed 70 proteins upregulated and 81 downregulated in EVs. Gene Ontology (GO) analysis indicated that EVs were enriched in proteins related to signal transduction, environmental adaptation, and transmembrane transport, while CDVs showed enrichment in ribosomal and nucleic acid metabolism-related proteins. Functional assays further demonstrated that EVs exhibited significantly stronger antioxidant and anti-inflammatory activities than CDVs. These findings suggest that L. rhamnosus -derived EVs possess distinct proteomic signatures and superior bioactivity, supporting their potential role in probiotic-based therapeutic strategies, particularly for skin health.
A holistic framework for strengthening security of healthcare data through encryption utilizing blockchain technology
Author Correction: Seismic detection of a 600-km solid inner core in Mars
Florigen activation complex forms via multifaceted assembly in Arabidopsis
Abstract Florigen, encoded by FT genes, is synthesized in leaves and transported to the shoot apical meristem (SAM) to induce flower development 1–3 . At the SAM, 14-3-3 proteins are proposed to act as receptors for FT protein and to mediate the indirect interaction between FT and the basic leucine zipper (bZIP) transcription factor FD to form the florigen activation complex (FAC) that activates transcription of flowering genes 4–6 . Here we demonstrate a different mechanism of FAC assembly, diverse functions for the 14-3-3 proteins within the complex, and an unexpected spatiotemporal distribution of the FAC. We show that FT is not recruited by 14-3-3 alone, but that it interacts with the DNA–FD–14-3-3 complex through two interfaces, one of which binds DNA via the unstructured C terminus of FT. We also find that interaction of 14-3-3 proteins with the C terminus of phosphorylated FD reduces liquid phase condensation of the intrinsically disordered FD protein, allowing it to bind DNA, and that the 14-3-3 proteins strengthen DNA binding of FD by promoting dimerization, which ultimately results in the recruitment of FT. Unexpectedly, we also find that after FT movement to the shoot apex, FT and FD are co-transcribed in young floral primordia, forming a boundary with the suppressed bract and allowing formation of the FAC during the first stages of floral development. Our studies propose a new mechanism by which the florigen FT transcriptional complex is formed, and indicate distinct functions for the complex during SAM and floral primordium development.