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Traffic sign detection method based on improved YOLOv8
Monocyte distribution width enhances the detection of infection in patients after primary percutaneous coronary intervention
Background Monocyte distribution width (MDW) may serve as an infection marker in acute myocardial infarction (AMI) patients undergoing primary percutaneous coronary intervention (PCI), where infection rates range from 2.4% to 16.6%. We evaluated the association of increased MDW levels with infection occurrence and to assess MDW-based models for predicting infection risk and prolonged hospital length of stay (LOS) ≥ 7 days. Methods and results This retrospective cohort study included AMI patients undergoing PCI at a Taiwanese tertiary teaching hospital from January 1, 2020, to September 30, 2021. Logistic regression models incorporating MDW, Quick Sequential Organ Failure Assessment (qSOFA) score, age, and C-reactive protein (CRP) levels were compared to the Canada Acute Coronary Syndrome (C-ACS) score and stress hyperglycemia ratio (SHR). Among 252 patients, 12.7% developed infections, a rate that falls within the expected range. Infections were more frequent among patients with LOS ≥ 7 days (42.9% vs. 1.1%). A three-parameter model (qSOFA score ≥2, age ≥ 65, and MDW ≥ 20) demonstrated good performance for new infection (AUC: 0.834) and LOS ≥ 7 days (AUC: 0.714). Adding CRP ≥ 2 mg/dL improved predictions for infection (AUC: 0.909) and LOS ≥ 7 days (AUC: 0.798), outperforming the C-ACS score (AUC: 0.807) and SHR (AUC: 0.784). Conclusion MDW emerges as a promising biomarker for assessing the risks of infection and prolonged hospital LOS in patients with AMI. Its early use may facilitate timely clinical interventions, including earlier initiation of antibiotic therapy.
Non-invasive measuring of biopotentials of the ciliary muscle during accommodation in emmetropes
Abstract To see near objects clearly, the ciliary muscle shapes the human eye’s crystalline lens to adjust its refractive power, a process known as accommodation. This contraction of the ciliary muscle also results in an electrical potential change. Previous work from the 1950s and 1960s reported electrical voltages in the microvolt range that were attributed to the accommodating ciliary muscle, however without clarifying the interaction between lens and muscle. Here, we present data of 12 emmetropic participants using a custom-developed scleral contact lens electrode which enables to record accommodation-dependent biopotentials of the ciliary muscle with an accuracy up to the millivolt range. Therefore, participants alternately shifted their focus from far to various near targets while the biopotentials of the ciliary muscle and the actual refractive change of the crystalline lens were recorded by a contact lens electrode and an eccentric infrared Photorefractor. In addition, the impact of confounding biopotentials such as squinting and eye movements was investigated. Our research points to a potentially new objective method of measuring accommodative change. Understanding these biopotentials could lead to the development of self-focusing visual aids as an alternative way of vision correction in presbyopes.
Self-reproduction as an autonomous process of growth and reorganization in fully abiotic, artificial and synthetic cells
We investigate mechanisms for the observed nonlinear growth in the number of polymer vesicles generated during a photo-Reversible Addition-Fragmentation Chain Transfer-based polymerization-induced self-assembly (PISA) reaction. Our experimental results reveal the presence of a self-reproduction process during which chemically active polymer protocells are chemically and autonomously generated in a light-stimulated one-pot reaction that starts from a homogeneous blend of non-self-assembling molecules and which, as observed microscopically, form vesicular objects that grow and multiply (reproduce) during irradiation with green light (530 nm) as the reaction proceeds. By using a filtration-based protocol, our experiments demonstrate that the self-reproduction process occurs concomitantly with the PISA process and results in a nonlinear increase in the number of polymer vesicles during photopolymerization which can only be ascribed to their reproduction via polymeric spores ejected from previously existing first-generation vesicles. The second and subsequent generations’ vesicles also self-reproduce and continue the process of population growth.
Strength and durability enhancement of low carbon gel concrete
In order to reduce the difficulty of concrete preparation, reduce the environmental hazards caused by concrete materials and their preparation process, and meet the development trend of energy saving and emission reduction, this study proposes a low-carbon gel material composed of slag powder, fly ash and gypsum for concrete preparation. Low-carbon gel concrete was made with the ingredients of slag powder, fly ash and gypsum with a water-cement ratio of 0.38 and a ratio of slag powder to fly ash of 1:1.The compressive, flexural and tensile strengths of low-carbon gel concrete samples with different ratios were tested by standard concrete strength test methods to assess their durability properties, and the effects of different ratios of slag powder, admixture and gypsum on the material properties of low-carbon gel were analyzed. concrete material properties with different proportions of slag powder, admixtures and gypsum were analyzed. The experimental results showed that low-carbon gel concrete materials outperformed traditional concrete materials in terms of compressive strength, flexural strength, and tensile strength. After 28 days of curing, the compressive strength of low-carbon gel concrete was 20% higher than that of conventional concrete, and the carbonation depth was reduced by 30.77%. The results indicate that the low-carbon gel concrete materials proposed in this study have excellent strength and durability, and can improve the performance of conventional concrete. This material provides a green and sustainable solution for the modern construction industry, contributing to the sustainable development of the construction sector and the global fight against climate change.
A tryptophol-containing emulgel ameliorates imiquimod-induced mice psoriasis
Martian samples, hazards, and biosecurity: Between science and bioethics
Comparative analysis of real-coded genetic algorithms for mixture distribution models: Insights from TOPSIS
This particular study presents two novel parent-centric real-coded crossover operators, named mixture-based Gumbel crossover (MGGX) and mixture-based Rayleigh crossover (MRRX), to increase the efficiency of genetic algorithms (GAs) in tackling complex optimization problems. Conventional crossover operators often struggle in multimodal and extremely restricted situations and fail to find the ideal balance between exploration and exploitation. Proposed parent-centric real-coded crossover operators increase the precision and robustness of GAs, which is confirmed by empirical results on testing constrained and un-constrained benchmark functions having different complexity levels. MGGX parent-centric real-coded crossover operator performs best in 20 out of 36 mean values cases and achieves the lowest standard deviation values in 21 out of 36 cases. Likewise, to confirm the efficiency, robustness, and reliability of the proposed crossover operator the Quade test, Performance index (PI), and multi-criteria TOPSIS method are utilized.
Publisher Correction: Vehicle speed measurement method using monocular cameras
High-affinity detection of biotinylated endogenous neuroligin-1 at excitatory and inhibitory synapses using a tagged knock-in mouse
Neuroligins (NLGNs) are important cell adhesion molecules mediating trans-synaptic contacts between neurons. However, the high-yield biochemical isolation and visualization of endogenous NLGNs is hampered by the lack of efficient antibodies. Thus, to reveal their subcellular distribution, binding partners, and synaptic function, NLGNs were extensively manipulated using knock-down, knock-out, or overexpression approaches, leading to controversial results. As an alternative to the manipulation of NLGN expression level, we describe here the generation of a knock-in (KI) mouse strain in which native NLGN1 was N-terminally tagged with a small biotin acceptor peptide (bAP) that can be enzymatically biotinylated by the exogenous delivery of biotin ligase. After showing that KI mice exhibit normal behavior as well as similar synaptic number, ultrastructure, transmission properties, and protein expression levels when compared to wild type counterparts, we exploited the fact that biotinylated bAP-NLGN1 can be selectively isolated or visualized using high-affinity streptavidin conjugates. Using immunoblotting and immunofluorescence, we show that bAP-NLGN1 binds PSD-95 and gephyrin and populates both excitatory and inhibitory synapses, challenging the historical view that NLGN1 is exclusively localized at excitatory synapses. Using superresolution optical and electron microscopy, we further highlight that bAP-NLGN1 forms in the synaptic cleft a subset of nanodomains, which contain each a few NLGN1 dimers and whose number positively scales with the postsynapse size. Overall, our study not only provides an extensively characterized KI mouse model which will be available to the scientific community but also an unprecedented view of the nanoscale organization of endogenous NLGN1.
Challenges and opportunities for integrating traditional healing approaches with biomedical care for mental illness: A scoping review from healers’ perspectives
Background A considerable number of people receive care from traditional healers for mental illness. Integrating traditional healing practices with modern treatment may improve the outcomes for people with the symptoms of mental illness. However, there has been limited joint efforts toward integration of the two approaches. Therefore, this review is intended to summarize the challenges and opportunities of integrating traditional treatment approaches with biomedical treatment for mental illness from the perspective of traditional healers. Methods Asksey and O’Malley’s framework and the Preferred Reporting Items for Systematic Review and Meta-Analysis Extension for Scoping Review (PRISM-ScR) guidelines were followed to conduct this scoping review. Searches of databases, including PubMed/Medline, PsycINFO, CINAHL, Scopus, and the Web of Sciences were conducted. Additionally, Google and Google Scholar were searched for other information, including grey literature. All articles published between January 2014 and June 2024 were considered. Themes and subthemes were created using Nvivo-12 software. A thematic synthesis was used to report the evidence. Result Based on the eligibility criteria, 54 of the 4071 initially identified articles were included. From the healers’ perspectives, governmental policy (guidelines, recognition, education, training, and financial issues), intellectual property issues, attitude, disease understanding differences, and referral are the major challenges for the integration of traditional healing approaches with biomedical treatment for mental illness. Healers’ willingness for integration, the effectiveness of the healing approaches, and the World Health Organization’s recognition of traditional healing are identified as enablers for integration. Conclusion Integrative work between traditional healing approaches and biomedical services presents an opportunity to assist in addressing the treatment gap for mental illness. This review presents a synthesis of the major challenges that hinder the integration of traditional healing approaches with biomedical care, and enablers that may facilitate integration. This review of the evidence can support policymakers and other stakeholders in reducing the major challenges of integration noted by healers and maximising opportunities for collaboration. The review also highlights the need to design culturally appropriate guidelines for integration and referral between the two systems.
Evaluation of self designed breast molds in enhancing doctor patient communication
Two endogenous <i>Dictyostelium discoideum</i> chemorepellents use different mechanisms to induce repulsion
The directed movement of eukaryotic cells is critical for processes such as development and immune responses. While much is known about chemoattraction, much less is known about chemorepulsion. The eukaryotic amoeba Dictyostelium discoideum secretes a 60 kDa chemorepellent protein called AprA to cause cells at the edge of a colony to move away from the colony. In addition to AprA, cells secrete a <10 kDa chemorepellent. Here, we show that the <10 kDa chemorepellent is a polymer of phosphates (polyphosphate; polyP). D. discoideum cells move by activating cortical Ras at one edge of the cell to initiate pseudopod formation. AprA induces repulsion by inhibiting Ras activation and pseudopod formation on the side of the cell closest to the source of AprA, without affecting the overall frequency of pseudopod formation. In contrast, polyP activates Ras at multiple regions of the cortex and increases pseudopod formation frequency, especially at the side of the cell furthest from the source of polyP. At least 20 signal transduction proteins are needed for both AprA and polyP repulsion, 9 are needed by polyP but not AprA, and 4 are needed by AprA but not polyP. Together, these results indicate that proliferating D. discoideum cells use two different chemorepellents, that one of the repellents is the unusual molecule polyphosphate, and that the two repellents activate partially overlapping and partially different pathways to induce repulsion by two basically different mechanisms.
Luteolin-7-O-glucoside from Elsholtzia ciliata extract inhibits the replication of coronavirus
Coronaviruses are RNA viruses with a high mutation rate that cause many human diseases, from severe COVID-19 to mild common cold. Therefore, discovering various medicines is required to reduce the symptoms of coronavirus infection. This report showed that the ethanol extract of the aerial parts of Elsholtzia ciliata (ECE) and its constituents can inhibit HCoV-OC43 (Human Coronavirus OC43) replication. HCoV-OC43, a human betacoronavirus genetically related to SARS-CoV-2, was used as a surrogate virus under BSL-2 conditions. To evaluate the antiviral properties of ECE, viral RNA levels were quantified using qRT-PCR, and viral protein expression was analyzed through Western blotting. ECE reduced coronavirus-induced plaque formation and viral RNA and protein expression in coronavirus-infected cells and conditioned media. Additionally, this was confirmed to have an inhibitory activity on virus production and improved cytopathic effects. ECE showed no cytotoxicity up to 40 µg/mL in vitro. As Elsholtzia ciliata has traditionally been consumed as a tea, oral administration could be a suitable route for further in vivo investigation. The main components of ECE were revealed by HPLC analysis and were isolated into four single compounds 1–4. Among them, luteolin-7-O-glucoside was effective in inhibiting the replication of coronavirus. Luteolin-7-O-glucoside demonstrated greater antiviral activity than ECE, with an estimated IC50 of 2 µM (around 1 µg/mL) compared to 5 µg/mL for ECE. This finding suggests that luteolin-7-O-glucoside could be a key contributor to the antiviral activity of the ECE. Finally, these results collectively suggest that Elsholtzia ciliata can be used as a potential antiviral treatment.
Author Correction: Study on the correlation of electron spin resonance with pigment gallstones and trace Cu2+, Fe3+ in diet
The IL-18 receptor is expressed on murine small-intestinal enterochromaffin cells and executes a recovery program upon injury
Upon injury, epithelial-derived IL-18 is released and induces an inflammatory response in underlying IL18R1 + lamina propria cells. Notably, Il18r1 is also predicted to be expressed and functional in intestinal epithelial cells (IECs), since epithelial IL18R1 deficiency contributes to worsened outcomes upon inflammatory challenge. However, the nature of Il18r1 + IECs, and their subsequent role in epithelial-intrinsic IL-18 signaling is poorly characterized. Here, we show that, in the murine small intestine, the IL-18 receptor is expressed by rare IECs that we identified to be a subset of enterochromaffin cells (ECC). While these cells are the major producers of serotonin in the intestine, we found no evidence that IL-18 regulated serotonin metabolism or release. Rather, upon radiation-induced injury, Il18r1 + cells appeared in the crypt base and took on a revival stem cell (revSC) program, marked by mixed expression of YAP/TAZ and enteroendocrine genes signatures. Functionally, irradiated Il18 −/− mice display reduced epithelial proliferation and altered differentiation in the small intestine, characterized by increased Paneth cells (PC) and elevated Wnt3 levels, which was partially recapitulated in Il18 −/− ileal organoids. In sum, we identified an Il18r1 + population in the epithelium and revealed a role for IEC-intrinsic IL-18 signaling during injury.
The game theory analysis of homestead use right circulation income distribution under the context of the separation of three powers
Reasonable distribution of income from the circulation of homestead is the foundation for revitalizing idle rural homesteads. This study constructs a game relationship among villagers, village collectives, and intended parties, with the help of game theory, and discusses the issues about generation logic of circulation income distribution, the bargaining power and so on. It reveals the reasons and conditions for emergence of income distribution, appropriate way of distribution, and the mechanism by which bargaining power affects income distribution. It fills the theoretical gap regarding the generation mechanism and bargaining power of income distribution from homestead land use rights circulation, and lays the groundwork for bridging the ideal and the real about income distribution. The study’s findings indicate that under certain conditions, villagers will choose to share part of the income with the village collective in exchange for the investment in village construction. And compared to income sharing based on circulation price, it based on the area of homestead land is more easily implemented. In addition, the bargaining power of villagers and the village collective determines the result of income distribution, which is closely related to factors such as their negotiation costs and rules. In the process of revitalizing homestead land, it is essential to respect the wishes and rights of villagers, guide cooperation between villagers and village collectives, and reasonably distribute the surplus from cooperation. Additionally, it is necessary to establish reasonable policy rules to prevent distortions in income distribution due to differences in bargaining power.
Osteocyte necroptosis drives osteoclastogenesis and alveolar bone resorption during orthodontic tooth movement
Stimulus representations in visual cortex shaped by spatial attention and microsaccades
Microsaccades (MSs) are commonly associated with covert spatial attention, yet their impact on cortical processing of visual objects remains unclear. Rhesus macaques, randomly cued to attend to a target object amid distracters, were rewarded for detecting a color change in the target. While spatial attention does not affect the object tuning curves of V4 cells, the direction of MS significantly influenced object representations in V4 throughout the entire trial. Specifically, intervals following an MS toward the target exhibited superior stimulus decoding and sharper tuning curves compared to intervals following an MS away from the target. Furthermore, MSs directed toward the target enhanced neuronal responses to behaviorally relevant color changes, leading to faster reaction times. This sharpening effect stems from both a refreshing of the initial sensory response and an amplification of attention effects. The firing rate enhancement associated with spatial attention is delayed until the occurrence of the first MS directed toward the target. Subsequently, a positive effect of attention on firing rate, influenced by MS direction, was found throughout the trial across deep and superficial layers of V4, lateral pulvinar, and IT cortex. In summary, these findings underscore a crucial link between covert attention, object processing, and their coordination with MSs.