This study explores how scientists are represented in the films produced in China since the establishment of the People's Republic of China in 1949. In total, 61 films (25 realistic and 36 science fiction) are analyzed according to grounded theory. Results show that the scientist in Chinese films tends to be male, middle-aged, married, sociable, and with tidy hair.
View Article and Find Full Text PDFPotassium (K) is an essential nutrient for the growth and development of most plants. In banana (Musa acuminata L.), microRNA160a (miR160a) is suggested to potentially contribute to the response to low K stress by modulating the auxin signaling pathway.
View Article and Find Full Text PDFDepression and anxiety are prominent symptoms of withdrawal syndrome, often caused by the abuse of addictive drugs like morphine. N-palmitoylethanolamide (PEA), a biologically active lipid, is utilized as an anti-inflammatory and analgesic medication. Recent studies have highlighted PEA's role in mitigating cognitive decline and easing depression resulting from chronic pain.
View Article and Find Full Text PDFIntroduction: Traditional cancer treatment strategies often have severe toxic side effects and poor therapeutic efficacy. To address the long-standing problems related to overcoming the complexity of tumors, we develop a novel nanozyme based on the in situ oxidation of 2D TiC structure to perform simultaneous phototherapy and sonodynamic therapy on tumors. TiC nanozymes exhibit multi-enzyme activity, including intrinsic peroxidase (POD) activities, which can react with HO in the tumor microenvironment.
View Article and Find Full Text PDFPublic Underst Sci
July 2024
Photography plays an important role in science communication. This study investigates the photographic portraits of scientists in the news media in China from 1949 to 2022. The data consist of 1,071 photographs published in , the most influential newspaper in China.
View Article and Find Full Text PDFUnderstanding the structures and reaction mechanisms of interfacial active sites in the Fisher-Tropsch synthesis reaction is highly desirable but challenging. Herein, we show that the ZrO-Ru interface could be engineered by loading the ZrO promoter onto silica-supported Ru nanoparticles (ZrRu/SiO), achieving 7.6 times higher intrinsic activity and ~45% reduction in the apparent activation energy compared with the unpromoted Ru/SiO catalyst.
View Article and Find Full Text PDFAn inflammatory response is one of the pathogeneses of depression. The anti-inflammatory and neuroprotective effects of auraptene have previously been confirmed. We established an inflammatory depression model by lipopolysaccharide (LPS) injection combined with unpredictable chronic mild stress (uCMS), aiming to explore the effects of auraptene on depressive-like behaviors in adult mice.
View Article and Find Full Text PDFThe catalytic behavior of CO hydrogenation can be modulated by metal-support interactions, while the role of the support remains elusive. Herein, we demonstrate that the presence of strong metal-support interactions (SMSI) depends strongly on the crystal phase of TiO (rutile or anatase) and the treatment conditions for the TiO support, which could critically control the activity and selectivity of Ru-based nanocatalysts for CO hydrogenation. High CO conversion and olefin selectivity were observed for Ru/rutile-TiO (Ru/r-TiO), while catalysts supported by anatase (a-TiO) showed almost no activity.
View Article and Find Full Text PDFACS Appl Mater Interfaces
February 2024
Tumor therapy presents significant challenges, and conventional treatments exhibit limited therapeutic effectiveness. Imbalance of calcium homeostasis as a key cause of tumor cell death has been extensively studied in tumor therapy. Calcium overload therapy has garnered significant interest as a new cancer treatment strategy.
View Article and Find Full Text PDFIntegr Psychol Behav Sci
June 2024
How and why do crises happen in the history of science? What can they tell us about how crises happen in child psychological development and child behavior? And-as a bonus question-can crises in child development tell us anything about crises in science history? We compare and contrast two superficially similar answers. Then we look at three models for the formation of general, abstract concepts in children developed in integrative psychological and behavioral science by the Soviet pioneer L.S.
View Article and Find Full Text PDFObjective: To compare clinical outcomes of flexible and rigid bronchoscopies for the management of foreign body aspiration (FBA) in different airway locations, especially in unilateral main bronchus, in children, so as to provide some suggestions to assist clinical decisions.
Methods: The medical records of children diagnosed with FBA in Qingdao Women and Children's Hospital Affiliated to Qingdao University from January 2020 to June 2022 were retrospectively reviewed. The following information was collected: demographics, radiological findings, endoscopic findings, foreign body locations, duration of operation, operation cost, and intraoperative and postoperative complications.
Bioactive lipid mediator N-palmitoylethanolamide (PEA) is an endocannabinoid-like molecule. Based on our previous data, this study aimed to further investigate the antidepressant property of PEA via the peroxisome proliferator-activated receptor alpha (PPARα) pathway, focusing on the intervention of PEA on hippocampal neuroplasticity. Behavioral tests were performed in rats induced by unpredictable chronic mild stress (uCMS) in the last week of the experiment, and then the brain tissue samples were retained for subsequent immunohistochemical detection and Western blot analysis.
View Article and Find Full Text PDFEcotoxicology
September 2023
Bixafen (BIX), a widely used succinate dehydrogenase inhibitor (SDHI) in agricultural disease control, has garnered significant attention due to its known hazardous effects on aquatic organisms. In this study, we exposed zebrafish embryos to 0.1, 0.
View Article and Find Full Text PDFBackground: Nanomaterials exhibited intrinsic enzyme-like properties due to the unique properties compared with natural enzyme. Carbon dots (CDs) are an important kind of quantum-sized nanomaterials, which have enormous application potential in bio-imaging, drug carrier, and nanosystems. Carbon dots possess intrinsic enzyme-like properties, such as glutathione (GSH) oxidase or peroxidase activities.
View Article and Find Full Text PDFThis study aimed to investigate the spatially and temporally expressed patterns and biological characteristics of in male yaks and explore the potential correlation between and male sterility of the yak hybrid offspring (termed cattle-yak). First, the coding sequence (CDS) of was cloned by RT-PCR, and bioinformatics analysis was conducted with relevant software. Quantitative real-time PCR (RT-qPCR) was employed to detect the expression profile of in various tissues of male adult yaks, the spatiotemporal expression of in different stages of yak testes, and the differential expression of between yak and cattle-yak testes.
View Article and Find Full Text PDFThe methylation status of histones plays a crucial role in many cellular processes, including follicular and oocyte development. Lysine-specific demethylase 2a (KDM2a) has been reported to be closely associated with gametogenesis and reproductive performance, but the specific function and regulatory mechanism have been poorly characterized in vivo. We found KDM2a to be highly expressed in growing follicles and oocytes of mice in this study.
View Article and Find Full Text PDFSyngas conversion serves as a competitive strategy to produce olefins chemicals from nonpetroleum resources. However, the goal to achieve desirable olefins selectivity with limited undesired C1 by-products remains a grand challenge. Herein, we present a non-classical Fischer-Tropsch to olefins process featuring high carbon efficiency that realizes 80.
View Article and Find Full Text PDFCattleyaks, a hybrid of (♂) and yak (♀), exhibit the marked productivity and adaptability of plateau, but suffer from male infertility. Small non-coding RNAs, especially miRNAs, play crucial roles in spermatogenesis and affect the growth of Sertoli cells (SCs). The objective of the present study was to explore the interaction between miR-34b-5p and protein phosphatase 1 regulatory inhibitor subunit 11 (PPP1R11) and its effect on cattleyak SCs.
View Article and Find Full Text PDFThe aims of this study were to analyse the protein phosphatase 1 regulatory subunit 11 (PPP1R11) expression and cellular localization in yak follicles and investigate its effects on cell proliferation, apoptosis and oestrogen secretion in granulosa cells (GCs). Ten healthy and non-pregnant female yaks (4-year-old) were used as experimental animals. The mRNA relative expression level of PPP1R11 in GCs from small (<3.
View Article and Find Full Text PDFThe bacterial colonization and poor osseointegration of Ti implants significantly compromise their applications in load-bearing bone repair and replacement. To endorse the Ti with both excellent bioactivity and antibacterial ability, we developed a microarc oxidation coating that was modified uniformly by hydroxyapatite (HA) nanodots arrays and loaded regionally with chitosan hydrogel containing ciprofloxacin. The bonding between the HA nanodots covered coating and the chitosan hydrogel is further enhanced via silanization and chemical grafting of glutaraldehyde.
View Article and Find Full Text PDFPotassium (K) has an important effect on the growth and development of plants. Banana contains higher K content than many other fruits, and its plant requires more K nutrient in soil. However, the soil in the banana-producing areas in China is generally deficient in K.
View Article and Find Full Text PDFBackground: A retrospective study and a randomized controlled trial published in late 2018 have shown that laparoscopic radical hysterectomy (RH) was associated with worse survival than abdominal RH among patients with early-stage cervical cancer. Radical hysterectomy in cervical cancer has been a classic landmark surgery in gynecology; therefore, this conclusion is pivotal. The current trial is designed to reconfirm whether there is a difference between laparoscopic RH and abdominal RH in cervical cancer (stages IB1, IB2, and IIA1) patient survival under stringent operation standards and consistent surgical oncologic principles.
View Article and Find Full Text PDFMicroRNAs (miRNAs) play vital roles in the development of oocytes and ovarian follicles. We have previously shown differential expression of miR-342-3p during yak oocyte maturation. In this study, we investigated the role of miR-342-3p in meiotic maturation of yak oocytes and the underlying mechanism.
View Article and Find Full Text PDFPrevious studies have shown that selenium possessed chemotherapeutic effect against multiple malignant cancers, inducing diverse stress responses including apoptosis and autophagy. Selenite was previously shown to induce apoptosis and autophagy in colorectal cancer cells. However, the relationship between selenite-induced apoptosis and autophagy was not fully understood.
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