Channel Code-Book (CCB): Semantic Image-Adaptive Transmission in Satellite-Ground Scenario.

Satellite-ground communication is a critical component in the global communication system, significantly contributing to environmental monitoring, radio and television broadcasting, aerospace operations, and other domains. However, the technology encounters challenges in data transmission efficiency, due to the drastic alterations in the communication channel caused by the rapid movement of satellites. In comparison to traditional transmission methods, semantic communication (SemCom) technology enhances transmission efficiency by comprehending and leveraging the intrinsic meaning of information, making it ideal for image transmission in satellite communications.

Square Root Unscented Kalman Filter-Based Multiple-Model Fault Diagnosis of PEM Fuel Cells.

Harsh operating conditions imposed by vehicular applications significantly limit the utilization of proton exchange membrane fuel cells (PEMFCs) in electric propulsion systems. Improper/poor management and supervision of rapidly varying current demands can lead to undesired electrochemical reactions and critical cell failures. Among other failures, flooding and catalytic degradation are failure mechanisms that directly impact the composition of the membrane electrode assembly and can cause irreversible cell performance deterioration.

Construction of non-noble decorated Z-scheme Bi-BiVO-BiTiO for enhanced full solar-spectrum driven photocatalytic activity.

Currently, to deal with the increasingly severe energy crisis and environmental consequences, photocatalytic technology is considered as a promise solution, and the construction of Z-scheme heterostructures are important strategies to maximize the utilization of solar energy and improve photocatalytic performance. Herein, a novel full spectrum-responsive Z-scheme Bi-BiVO-BiTiO heterojunction was constructed by a facile hydrothermal method without any templates or surfactants. A series of detailed analyses revealed that the novel Bi-BiVO-BiTiO heterojunction catalyst were prepared successfully.

Association between dietary vitamin E intake and incident cardiovascular disease, cardiovascular, and all-cause mortality: A prospective cohort study using NHANES 2003-2018 data.

Background: The relationship between dietary vitamin E intake and the risk of cardiovascular diseases, as well as cardiovascular and all-cause mortality, remains inconclusive. This study aimed to investigate these associations in a large, representative sample of the U.S.

Efficacy and Safety of Ciprofol for Anesthesia in Painless Colonoscopy with Varying Body Mass Indices Patients: A Prospective, Single-Center, Observational Study.

Background: Ciprofol, a novel intravenous anesthetic derived from propofol, exhibits high lipophilicity. Its pharmacokinetics and pharmacodynamics may vary across different body mass indices (BMI) categories, but data on its optimal dosing as well as its safety and efficacy during colonoscopy anesthesia in varying BMI groups are lacking.

Objective: To evaluate the efficacy and safety of ciprofol during anesthesia for painless colonoscopy in patients with varying BMI, and to explore the correlation between BMI and induction dose.

A generalist medical language model for disease diagnosis assistance.

The delivery of accurate diagnoses is crucial in healthcare and represents the gateway to appropriate and timely treatment. Although recent large language models (LLMs) have demonstrated impressive capabilities in few-shot or zero-shot learning, their effectiveness in clinical diagnosis remains unproven. Here we present MedFound, a generalist medical language model with 176 billion parameters, pre-trained on a large-scale corpus derived from diverse medical text and real-world clinical records.

Prediction of mortality in intensive care unit with short-term heart rate variability: Machine learning-based analysis of the MIMIC-III database.

Background: Prognosis prediction in the intensive care unit (ICU) traditionally relied on physiological scoring systems based on clinical indicators at admission. Electrocardiogram (ECG) provides easily accessible information, with heart rate variability (HRV) derived from ECG showing prognostic value. However, few studies have conducted a comprehensive analysis of HRV-based prognostic model against established standards, which limits the application of HRV's prognostic value in clinical settings.

Effects of BLa80 on fecal and mucosal flora and stem cell factor/c-kit signaling pathway in simulated microgravity rats.

Background: Simulated microgravity environment can lead to gastrointestinal motility disturbance. The pathogenesis of gastrointestinal motility disorders is closely related to the stem cell factor (SCF)/c-kit signaling pathway associated with intestinal flora and Cajal stromal cells. Moreover, intestinal flora can also affect the regulation of SCF/c-kit signaling pathway, thus affecting the expression of Cajal stromal cells.

Missing the mark(ers): circulating endothelial cells and endothelial-derived extracellular vesicles are elevated in sickle cell disease plasma.

Sickle cell disease (SCD) is a devastating hemolytic disease, marked by recurring bouts of painful vaso-occlusion, leading to tissue damage from ischemia/reperfusion pathophysiology. Central to this process are oxidative stress, endothelial cell activation, inflammation, and vascular dysfunction. The endothelium exhibits a pro-inflammatory, pro-coagulant, and enhanced permeability phenotype.

Changes in Functional Properties and In Vitro Digestibility of Black Tartary Buckwheat Starch by Autoclaving Combination with Pullulanase Treatment.

The processing properties of resistant starch (RS) and its digestion remain unclear, despite the widespread use of autoclaving combined with debranching in its preparation. In this study, the physicochemical, rheological and digestibility properties of autoclaving modified starch (ACB), autoclaving-pullulanase modified starch (ACPB) and native black Tartary buckwheat starch (NB) were compared and investigated. The molecular weight and polydispersity index of modified starch was in the range of 0.

Therapeutic reduction of neurocan in murine intracerebral hemorrhage lesions promotes oligodendrogenesis and functional recovery.

Background: Intracerebral hemorrhage (ICH) causes prominent deposition of extracellular matrix molecules, particularly the chondroitin sulphate proteoglycan (CSPG) member neurocan. In tissue culture, neurocan impedes the properties of oligodendrocytes. Whether therapeutic reduction of neurocan promotes oligodendrogenesis and functional recovery in ICH is unknown.

Dynamic transformation and leaching processes of nitrogen in a karst agricultural soil under simulated rainfall conditions.

Frequent exchange of surface water and groundwater in karst agricultural areas results in soil nutrient loss during rainfall and consequent deterioration of the aquatic environment. To understand nitrogen (N) transformation and leaching processes from karst soil during rainfall events, two typical N fertilizers were added to karst soil and consequently investigated the nitrogenous species using soil column experiments system. The contents of various N forms in the soil and leachate were analyzed, and the net nitrification and the N leaching rates were calculated.

Using multiple drug similarity networks to promote adverse drug event detection.

The occurrence of an adverse drug event (ADE) has become a serious social concern of public health. Early detection of ADEs can lower the risk of drug safety as well as the expense of the drug. While post-market spontaneous reports of ADEs remain a cornerstone of pharmacovigilance, most existing signal detection algorithms rely on substantial accumulated data, limiting their applicability to early ADE detection when reports are scarce.

Depression among Tibetan residents in the Southeastern region of Qinghai-Tibet plateau: a cross-sectional study.

Depression has emerged as a significant public health concern, with its prevalence fluctuating based on varying environmental and demographic factors. This study categorized participants based on altitude. A convenient sampling approach was used, and the hamilton depression rating scale-24 was used to assess depressed symptoms while gathering demographic information.

The Efficacy of Heparin and Nitroglycerin in Managing Vascular Embolism Complications from Polycaprolactone (PCL) Fillers: A Clinical Study.

Background: The use of PCL fillers has increased due to their long-lasting effects and collagen stimulation properties. However, managing vascular embolisms caused by PCL fillers is challenging due to the inability to dissolve them quickly. This study builds upon our previous findings from animal studies, which provided valuable insights into the management of PCL-related vascular complications.

Advances in precise synthesis of metal nanoclusters and their applications in electrochemical biosensing of disease biomarkers.

Metal nanoclusters (NCs), comprising tens to hundreds of metal atoms, are condensed matter with concrete molecular structures and discrete energy levels. Compared to metal atoms and nanoparticles, metal NCs exhibit unique physicochemical properties, especially fascinating electrocatalytic activities. This review focuses on recent progress in the precise synthesis of metal NCs and their applications in electrochemical analysis of various disease biomarkers.

Investigating the Process of Autoimmune Inner Ear Disease: Unveiling the Intricacies of Pathogenesis and Therapeutic Strategies.

Autoimmune inner ear disease (AIED) is a rare condition characterized by immune-mediated damage to the inner ear, leading to progressive sensorineural hearing loss (SNHL) and vestibular symptoms such as vertigo and tinnitus. This study investigates the pathogenesis and therapeutic strategies for AIED through the analysis of three cases with different underlying autoimmune disorders: rheumatoid arthritis, relapsing polychondritis, and IgG4-related disease. The etiology of AIED involves complex immunopathological mechanisms, including molecular mimicry and the "bystander effect," with specific autoantibodies, such as those against heat shock protein 70 (HSP70), playing a potential role in cochlear damage.

Enantioselective Assessment of Etoxazole Enantiomers in Earthworms (): Bioaccumulation, Degradation, Transcriptome, and Oxidative Stress.

This study systemically investigated the enantioselective bioaccumulation and degradation of etoxazole (ETZ) in earthworms along with the transcriptome and oxidative stress responses to ETZ enantiomer exposure. Based on the M-shaped bioaccumulation trends for ETZ enantiomers, -ETZ was found to be preferentially bioaccumulated in earthworms. Sublethal toxicity analysis showed that -ETZ induced greater changes in protein content, malondialdehyde content, detoxifying metabolic enzyme activity, and oxidative stress in earthworms, compared to those induced by -ETZ.

Sulfate reducing bacteria corrosion of a 90/10 Cu-Ni alloy coupled to an Al sacrificial anode.

This study investigates the corrosion of 90/10 copper-nickel (Cu-Ni) alloy caused by sulfate-reducing bacteria (SRB) in the presence of aluminum anodes, with particular emphasis on the role of electron supply in microbial corrosion and the resulting local corrosion failures. The study reveals that the electron supply from the anode supports SRB growth on the Cu-Ni alloy through an "Electrons-siphoning" mechanism. However, the supply is insufficient to sustain the SRB population, resulting in ineffective cathodic protection (i = 2.

Construction and immunological evaluation of recombinant adenovirus vaccines of new novel NADC34-PRRSV strains in pigs.

Introduction: Porcine reproductive and respiratory syndrome virus (PRRSV) causes reproductive and respiratory diseases in sow herds and piglets. The emergence of ORF5 RFLP 1-7-4-like (NADC34-like) PRRSV strain in China has brought a new round of challenges to PRRSV prevention.

Methods: In addition, recombinant adenovirus vaccine candidates against the newly emerged NADC34-like strain were constructed in the study; the immunogenicity of the vaccine was investigated in piglets.

Spectrophotometric determination of phosphate using sodium molybdate and its field application to the simultaneous measurement with ammonium in seawater.

Phosphate (PO) and ammonium (NH), two major components of the phosphorus and nitrogen cycles, respectively, play vital roles in aquatic ecosystems. Very few studies have reported methods for the simultaneous determination of PO and NH in seawater. Additionally, when ammonium molybdate solution was employed as a chromogenic reagent for the simultaneous determination of both PO and NH in a single analysis system, there was a possibility of cross-contamination.

UV-B induced flavonoid accumulation and related gene expression in blue- grained wheat at different periods of time.

Introduction: UV-B can be used as an additional technique for nutrient accumulation in blue-grained wheat, which has special nutritional properties due to its blue starch layer. The concentration of flavonoids in blue-grained wheat under UV-B irradiation is extremely important for further investigation and exploitation of the nutritional properties of blue-grained wheat.

Methods: This investigation focuses on the expression of flavonoids and associated genes in blue-grained wheat using transcriptomic and metabolomic analyzes.