Measurement Techniques for Highly Dynamic and Weak Space Targets Using Event Cameras.

Star sensors, as the most precise attitude measurement devices currently available, play a crucial role in spacecraft attitude estimation. However, traditional frame-based cameras tend to suffer from target blur and loss under high-dynamic maneuvers, which severely limit the applicability of conventional star sensors in complex space environments. In contrast, event cameras-drawing inspiration from biological vision-can capture brightness changes at ultrahigh speeds and output a series of asynchronous events, thereby demonstrating enormous potential for space detection applications.

Instant Energy Barrier Modulation in Bistable Robotic Grippers for Compliant Triggering and Powerful Grasping.

Bistable structures, which leverage mechanical instability, have emerged as a promising paradigm in the development of robotic grippers, providing advantages including rapid response and low energy consumption. A critical limitation of existing bistable grippers, however, lies in their invariable energy barriers, which hinder the balance between compliant triggering and powerful grasping. In this study, we propose a bistable robotic gripper capable of in situ energy barrier modulation, inspired by the adaptive seed dispersal behavior of pods.

Postpartum Ovarian Vein Thrombosis: A Case Report of Diagnosis and Conservative Management.

Ovarian vein thrombosis (OVT) is a rare form of venous thromboembolism that most commonly affects postpartum women. It typically presents with abdominal pain and fever, and is often diagnosed through imaging techniques such as Doppler ultrasound. However, in cases of postpartum abdominal pain with or without fever, in addition to ultrasound examination, pelvic CT or MRI should be considered to rule out the possibility of pelvic thrombosis, especially when ultrasound results are inconclusive.

Full-scale performances of the slab track subgrade filled with basalt fiber-reinforced foamed concrete.

Foamed concrete has been used to address the issue of differential settlement in high-speed railway subgrades in China. However, to enhance crack resistance, reinforcement is still necessary, and further research is required to better understand the performance of foamed concrete in subgrade applications. To this end, a series of tests-including uniaxial compressive and dynamic triaxial tests-were conducted to comprehensively examine the effects of basalt fiber reinforcement on the mechanical properties of foamed concrete with densities of 700 and 1000 kg/m.

Bioinoculant substitution enhances rhizosphere soil quality and maize growth by modulating microbial communities and host gene expression in alkaline soils.

The application of plant growth-promoting bacteria (PGPB) as bioinoculants is widely recognized for improving crop yields and soil fertility. However, the precise mechanisms underlying their impact on rhizosphere soil quality and crop productivity remain insufficiently understood. This study elucidates how a solid bioinoculant, comprising Bacillus velezensis FZB42 and attapulgite clay, enhances rhizosphere soil quality and maize (Zea mays) growth in nutrient-deficient alkaline calcareous soils.

The epigenetic landscape of mesenchymal stem cell and extracellular vesicle therapy.

Mesenchymal stem cell (MSC) therapy shows great potential for treating tissue impairments and immune disorders. Epigenetic regulation is a core molecular signature that ensures long-lasting memory in MSC functional modulation and mediates therapeutic efficacy. Studies reveal that transplanted MSCs drive epigenetic changes in recipient cells, which contributes to restoration of organismal and microenvironmental homeostasis.

Identification and efficacy of anti-allergic peptides from phycocyanin hydrolysate.

Phycocyanin (PC) is a protein that possesses a multitude of bioactive components with nutritional and pharmaceutical properties. This study used continuous chromatographic techniques such as ultrafiltration centrifugation, Superdex™ increase 10/300 GL gel filtration chromatography, liquid chromatography-tandem mass spectrometry (LC/MS/MS), and reverse-phase high-performance liquid chromatography (RP-HPLC). The antiallergic peptides from PC were obtained by alcalase hydrolysis and were then screened and identified.

Insight into the enhanced removal of dimethoate by ferrate(Ⅵ)/biochar system: Contributions of adsorption and active oxidants.

Dimethoate is a toxic organophosphorus insecticide and its contamination of water poses a threat to the surrounding ecosystem. In order to enhance the removal effect of ferrate (Fe(VI)) on dimethoate, modified graphene-like biochar (SIZBC) with reduction and adsorption properties was prepared in this study. Compared with Fe(VI) alone, the removal of dimethoate by Fe(VI)/SIZBC increased from 26 % to more than 97 %, and the reaction rate was accelerated by 34 times.

Prodigiosin hydrogel to promote healing of trauma-infected multidrug-resistant mice wounds.

Wound infections caused by Multidrug-resistant (MRSA) have been regarded as a challenging problem in clinic for the long time. In this study, based on the excellent antimicrobial effect of prodigiosin(PG) and the ability of hydrogel dressing in terms of tissue repair and regeneration, we prepared the PG hydrogel as a treatment for the wound infection induced by MRSA. Rheological tests indicated that PG hydrogel as a semi-solid gel had good mechanical properties.

An activatable azophenyl fluorescent probe for hypoxic fluorescence imaging in living cells.

Cellular hypoxia is a common pathological process in various diseases. Detecting cellular hypoxia is of great scientific significance for early diagnosis of tumors. The hypoxia fluorescence probe analysis method can efficiently and conveniently evaluate the hypoxia status in tumor cells.

ALKBH5-mediated mA demethylation of HS3ST3B1-IT1 prevents osteoarthritis progression.

HS3ST3B1-IT1 was identified as a downregulated long noncoding RNA in osteoarthritic cartilage. However, its roles and mechanisms in the pathogenesis of osteoarthritis (OA) are unclear. In this study, we demonstrated that the expressions of HS3ST3B1-IT1 and its maternal gene HS3ST3B1 were downregulated and positively correlated in osteoarthritic cartilage.

Experimental Investigation on a Novel Temperature-Controlled Phase Change Aggregate Concrete: Thermo-Mechanical Properties and Hydration Heat Control.

To reduce the structural deterioration of mass concrete structures from temperature cracks, and lower energy consumption caused by the traditional mass concrete hydration heat cooling process, this paper reports the preparation of concrete temperature-controlled phase change aggregate (PCA) by a vacuum compaction method using light and high-strength black ceramite and No. 58 fully refined paraffin wax as phase change material (PCM), and the encapsulation technology of the aggregate by using superfine cement and epoxy resin. Further, through laboratory tests, the cylinder compressive strength, thermal stability and mixing breakage rate of the encapsulated PCA were tested, and the differences in mechanical properties such as compressive strength, flexural strength and splitting tensile strength between phase change aggregate concrete (PCAC) and ordinary concrete were studied.

Research on aeromagnetic data error analysis and processing of multi-rotor UAV based on variational mode decomposition algorithm.

Aeromagnetic survey of multi-rotor UAV is widely used in small and medium-sized mineral resources survey, engineering investigation, non-explosive detection and other fields due to its advantages of high safety, low cost and convenient operation. The original data of UAV aeromagnetic survey includes interference from external environment, interference from UAV platform and interference from airborne electromagnetic equipment. The interference is mainly shown as striping anomaly along the direction of the survey line in the aeromagnetic anomaly map, which affects the accuracy of aeromagnetic compensation and information detection of geological anomaly body, thus affecting the accuracy of interpretation of geological anomaly body.

The Efficacy and Safety of Dingkun Pill in Women with Polycystic Ovary Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Objective: Dingkun Pill (DKP) is a proprietary Chinese medicine that has been utilized for patients with gynecological diseases, and its clinical application has been widely accepted in China. However, the effects of DKP on reproduction and metabolism in women with polycystic ovary syndrome (PCOS) have never been systematically evaluated. Our objective was to evaluate the efficacy and safety of DKP in treating reproductive and metabolic abnormalities with PCOS.

Research on Temperature Compensation of Multi-Channel Pressure Scanner Based on an Improved Cuckoo Search Optimizing a BP Neural Network.

A multi-channel pressure scanner is an essential tool for measuring and acquiring various pressure parameters in aerospace applications. It is important to note, however, that the pressure sensor of each of these channels will drift significantly with the increase in the temperature range of the pressure measurement, and the output voltage of each of these channels will show nonlinear characteristics, which will constrain the improvements in the accuracy of the measurement. In the regression fitting process, it is difficult to fit nonlinear data with the traditional least-squares method, which leaves pressure measurement accuracy unsatisfactory.

Hydroxysafflor Yellow A (HSYA) Protects Endplate Chondrocytes Against IL-1-Induced Injury Through Promoting Autophagy.

Background: Intervertebral disc degeneration (IDD) refers to intractable pain in patients' waist and legs, which is caused by internal structural disorder and degeneration of intervertebral. This disease severely affects the quality-of-life of people. It has been reported that hydroxysafflor yellow (HSYA), the active ingredient in safflower extract, could inhibit IL-1-induced apoptosis of endplate chondrocytes.

High-Altitude Genetic Selection and Genome-Wide Association Analysis of Yield-Related Traits in L. Using SLAF Sequencing.

The genetic adaptations to harsh climatic conditions in high altitudes and genetic basis of important agronomic traits are poorly understood in L. In this study, an association population of 210 genotypes was used for population structure, selective sweep analysis, and genome-wide association study (GWAS) based on 88,506 single nucleotide polymorphisms (SNPs). We found 965 alleles under the natural selection of high altitude, which included 7 hub genes involved in the response to UV, and flavonoid and anthocyanin biosynthetic process based on the protein-protein interaction (PPI) analysis.

The birth weight of macrosomia influence the accuracy of ultrasound estimation of fetal weight at term.

Objective: To evaluate and analyze the accuracy of ultrasound estimation of the fetal weight of Macrosomia at term.

Method: The instruments used were α6(Aloka; Japan) color Doppler ultrasound imagers, and vinno 80 (feieno; China) with a frequency of 3.5 MHz.

Identification of Flowering Regulatory Networks and Hub Genes Expressed in the Leaves of L. Using Comparative Transcriptome Analysis.

Flowering is a significant stage from vegetative growth to reproductive growth in higher plants, which impacts the biomass and seed yield. To reveal the flowering time variations and identify the flowering regulatory networks and hub genes in , we measured the booting, heading, and flowering times of 66 accessions. The booting, heading, and flowering times varied from 136 to 188, 142 to 194, and 148 to 201 days, respectively.

A novel g-CN nanosheet/AgPO/α-BiO ternary dual Z-scheme heterojunction with increased light absorption and expanded specific surface area for efficient photocatalytic removal of TC.

A novel ternary dual Z-scheme 2D g-CN nanosheet/AgPO/α-BiO (CNN/AP/BO) photocatalyst was successfully synthesized by an deposition and hydrothermal-calcination method. The coupling of AP and BO remarkably enhanced the photocatalytic tetracycline (TC) degradation under visible light illumination, with an optimal removal efficiency of 91.6% (60 min), which can be attributed to the extended visible-light absorption and increased specific surface area owing to the interfacial intimate coupling with well-matched energy band positions between semiconductors.

Effects of Tea Consumption on Anthropometric Parameters, Metabolic Indexes and Hormone Levels of Women with Polycystic Ovarian Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Objective: Our aim was to conduct a systematic review and meta-analysis to assess the effectiveness and safety of tea supplements for patients with polycystic ovary syndrome (PCOS).

Methods: We conducted searches of the published literature in PubMed, EMBASE, Cochrane Library, Web of Science, Chinese Biomedical Literature Database, Chinese National Knowledge Infrastructure (CNKI), VIP database, and Wanfang Database in 1985 to September 2021. Data from randomized controlled trials (RCTs) were obtained to assess the effects of tea versus placebo in women with PCOS.

Enhancement of redox capacity derived from O-doping of g-CN/WO nanosheets for the photocatalytic degradation of tetracycline under different dissolved oxygen concentration.

Element doping is an essential method for adjusting band structure, light absorbance and charge transfer, and separation of semiconductors. Besides this, whether the photocatalyst can function in an oxygen-deficient environment is also important. Herein, a novel Z-scheme heterojunction photocatalyst O-doped g-CN/WO (OCN/W) was fabricated and used for the photocatalytic degradation of tetracycline (TC) at different dissolved oxygen concentrations.

LncRNA OIP5-AS1 accelerates intervertebral disc degeneration by targeting miR-25-3p.

It is obvious that epigenetic processes influence the evolution of intervertebral disc degeneration (IDD). However, its molecular mechanisms are poorly understood. Long noncoding RNAs (lncRNAs) have been validated to exert vital roles in IDD.

The Effects of Traditional Chinese Medicine-Associated Complementary and Alternative Medicine on Women with Polycystic Ovary Syndrome.

Polycystic ovary syndrome (PCOS) is a touchy clinical and public health problem worldwide, which adversely affects women's health and health-related comorbidities for lifetime, and represents a tremendous burden for both the family of the patient and for society. According to the diagnostic criteria used and the population studied, the prevalence rate of PCOS is between 6% and 21%. However, current conventional modern medicines for PCOS are only moderately effective at controlling the signs and symptoms, while they are not thoroughly able to prevent complications.

Tanshinone I and Tanshinone IIA/B attenuate LPS-induced mastitis via regulating the NF-κB.

Background: Mastitis is a common disease occurs in breast-feeding mothers, but published data are poor. This study aimed to study the effects of Tanshinones on treating mastitis.

Methods: Clinical trials performed in 58 breast-feeding mothers were carried out.