Visible-Light-Driven Carboxylative 1,2-Difunctionalization of C=C Bonds with Tetrabutylammonium Oxalate.

Herein, we report a visible-light-induced charge-transfer-complex-enabled dicarboxylation and deuterocarboxylation of C=C bonds with oxalate as a masked CO source under catalyst-free conditions. In this reaction, we disclosed the first example that the tetrabutylammonium oxalate could be able to aggregate with aryl substrates via π-cation interactions to form the charge transfer complexes, which subsequently triggers the single electron transfer from the oxalic dianion to the ammonium countercation under irradiation of 450 nm bule LEDs, releasing CO and CO radical anions. Diverse alkenes, dienes, trienes, and indoles, including challenging trisubstituted olefins, underwent dicarboxylation and anti-Markovnikov deuterocarboxylation with high selectivity to access valuable 1,2- and 1,4-dicarboxylic acids as well as indoline-derived diacids and β-deuterocarboxylic acids under mild conditions.

Global urban and rural settlement dataset from 2000 to 2020.

Accurate mapping of global urban and rural settlements is crucial for understanding their distinct expansion patterns and ecological impacts. However, existing global datasets focus mainly on urban settlements and ignore the delineation of rural settlements. Therefore, this study proposed a framework for delineating between urban and rural settlements based on dynamic thresholds defined by area and light brightness and constructed the first global 100-meter resolution urban and rural settlements dataset (GURS) spanning from 2000 to 2020, integrating GHS-BUILT-S R2023A, NPP-VIIRS-like nighttime light, and OpenStreetMap data.

[Research advances on the metabolic pathways and functions mediated by plant xanthine dehydrogenase].

The xanthine dehydrogenase (XDH), a molybdenum-containing oxidoreductase belonging to the molybdenum hydroxylase flavoprotein family, has been identified in a variety of eukaryotes, bacteria, and archaea. XDH catalyzes the conversion of xanthine and hypoxanthine to uric acid, which then undergoes further reactions to form allantoin and allantoic acid. Studies have shown that XDH plays a role in various metabolic processes, including purine metabolism, nitrogen metabolism, hormone metabolism, reactive oxygen species metabolism, and responses to biotic and abiotic stresses.

Relationships Between Functional Movement Quality and Sports Performance in Elite Figure Skating Athletes of China.

Zhitao, L, Junlong, D, Rui, Y, Leijiao, Y, Cheng, G, and Jun, Y. Relationships between functional movement quality and sports performance in elite figure skating athletes of China. J Strength Cond Res 38(11): e678-e685, 2024-This study aimed to determine the optimal functional movement screen (FMS) cut score for assessing the risk of sports injuries and to explore the correlations between functional movement quality and sports performance among elite figure skaters.

Photoinduced Radical Approach for Desulfurative Alkylation of Cysteine Derivatives to Make Unnatural Amino Acids.

Unnatural amino acids (UAAs) are highly valuable molecules in organic synthesis, pharmaceutical sciences, and material science. Herein, we present a photocatalytic radical approach for desulfurative alkylation of cysteine derivatives with arenethiol as the hydrogen atom transfer catalyst for making UAAs and peptides. The formate salt, acting as the hydrogen atom donor, in situ generates the highly reductive CO radical anion species, which is the key to unlocking the C-S bond cleavage process with a simple benzoyl protecting group.

Effects of Nanocomposite Derivatives of Ni-Fe, Ni-Co, Ni-Co-Fe Prussian Blue Analogues on the Thermal Decomposition Performance of Nitrocellulose.

The incorporation of nanomaterials generated from Prussian blue (PB) derivatives has emerged as a promising strategy to significantly improve the properties of energetic materials. In this study, we comprehensively investigated the influence of nanomaterials derived from PB on the thermal decomposition characteristics of energetic materials. To achieve this goal, we prepared nanomaterials using coprecipitation and heat treatment methods with PB derivatives as catalysts.

Multisensory Fusion Training and 7, 8-Dihydroxyflavone Improve Amyloid-β-Induced Cognitive Impairment, Anxiety, and Depression-Like Behavior in Mice Through Multiple Mechanisms.

Background: There is growing interest in the role of physical activity in patients with of Alzheimer's disease (AD), particularly regarding its impact of cognitive function, gut microbiota, metabolites, and neurotrophic factors.

Objective: To investigate the impact of multisensory fusion training (MSFT) combined with 7, 8-dihydroxyflavone (DHF) on the behavioral characteristics, protein expression, microbiome, and serum metabolome using the AD model in mice induced with amyloid-β (Aβ).

Methods: We assessed cognitive ability, anxiety-like and depression-like behaviors in Aβ mice using behavioral measures.

Chemical Composition of Achillea millefolium L. and Their Anti-Inflammatory Activity.

A new monoterpene, (-)-10-hydroxydihydroactinidiolide (1), along with two known monoterpenes, loliolide (2) and (+)-isololiolide (3), three known megastigmanes, 3α-hydroxy-5β,6β-epoxy-β-ionone (4), 3α-hydroxy-5α,6α-epoxy-β-ionone (5), and (+)-dehydrovomifoliol (6), a eudesmane-type sesquiterpene, 4α-hydroxy-4β-methyldihydrocostol (7), a monoterpene, 8-hydroxycarvotanacetone (8), two flavonoids, chrysoeriol (9) and apigenin (10), and a phenylpropanoid, 3-(4-hydroxyphenyl)-1-propanol (11), were isolated from the whole plant of Achillea millefolium. The structure of compound 1 was identified according to spectroscopic data of HRMS and NMR, and its absolute configuration was assigned by C NMR calculations with DP4+ probability analyses and ECD calculations. The absolute configuration of compound 6 was determined by ECD calculations.

Meta-Analysis of Acupuncture Treatment for Cervicogenic Headache.

Objective: To analyze and evaluate the clinical effect of acupuncture on cervicogenic headache (CEH), and provide evidence-based basis for clinical selection of acupuncture for CEH.

Methods: Databases including China Knowledge Network, Wanfang, VIP Chinese sci-tech journals, Chinese Biomedical, and PubMed were searched to collect clinical randomized controlled trials on the effectiveness of acupuncture in the treatment of CEH until November 2023. Statistical analysis was performed using the RevMan 5.

Complex effects of testosterone level on ectoparasite load in a ground squirrel: an experimental test for the immunocompetence handicap hypothesis.

Background: The immunocompetence handicap hypothesis suggests that males with a higher testosterone level should be better at developing male secondary traits, but at a cost of suppressed immune performance. As a result, we should expect that males with an increased testosterone level also possess a higher parasite load. However, previous empirical studies aimed to test this prediction have generated mixed results.

Comparative efficacy of different types of exercise modalities on psychiatric symptomatology in patients with schizophrenia: a systematic review with network meta-analysis.

This network meta-analysis investigated the effects of 8 types of physical exercises on treating positive symptoms, negative symptoms, general psychopathology, and the Positive And Negative Syndrome Scale (PANSS) total score in patients with schizophrenia. The methods adhered to PRISMA guidelines and used the Cochrane risk of bias tool for quality assessment, and Stata software for data analysis. Data were sourced from PubMed, Embase, Web of Science, and the Cochrane database up to August 15, 2023, following PICOS principles.

Eye-Hand Typing: Eye Gaze Assisted Finger Typing via Bayesian Processes in AR.

Nowadays, AR HMDs are widely used in scenarios such as intelligent manufacturing and digital factories. In a factory environment, fast and accurate text input is crucial for operators' efficiency and task completion quality. However, the traditional AR keyboard may not meet this requirement, and the noisy environment is unsuitable for voice input.

[Relationship between dietary nutrition and chronic disease of Jinuo Minority residents aged 20-80 in Jinghong District in 2020].

Objective: To analyze the relationship between food intake and chronic diseases of Jinuo Minority residents living in Yunnan Province.

Methods: A total of 392 Jinuo Minority residents 20-80-year-old among 304 families(male 135, female 257; aged 20-49 years old 140, aged 50-59 years old 136, aged 60-80 years old 116)in Jinghong District in Yunnan Province were selected with stratified multistage cluster sampling method. To apply the method of food frequency questionnaire and questionnaire survey obtain the condition of dietary structure and overweight or obesity, diabetes and dyslipidemia among Jinuo Minority in the past 12 months.

Influence of Various Flame Temperatures of the Gun Propellant on the Effectiveness of the Erosion Inhibitor and Relevant Mechanisms.

The development of high energy gun propellants faces significant challenges in terms of erosion, partly due to the inadequate effectiveness of erosion inhibitors. In this paper, the influence of quite different flame temperature of five gun-propellants on erosion-reducing efficiency of four representative inhibitors materials (talc/TiO/ PDMS/Paraffin) were studied in vented erosion vessel tester. From aspects of morphologies and element compositions of erode steel samples, as well as the pressure and heat generated by propellant burning, the relevant erosion-reducing processes and mechanisms were discussed.

Advanced fabrication approach for innovative triple base propellants with enhanced continuous fracture resistance.

This paper initially contrasts the solvent-based and solventless molding processes, subsequently optimizing a sustainable and efficient solventless molding route for both STP and SLTP. Key physicochemical parameters such as extrusion rate, residual volatile solvents, moisture content, and apparent density of both propellant types are meticulously compared. Furthermore, the orientation of crystal particles and the structure of the matrix-bound interface are analyzed.

CFD-DEM Evaluation of the Clustering Behavior in a Riser-the Effect of the Drag Force Model.

Riser reactors are frequently applied in catalytic processes involving rapid catalyst deactivation. Typically heterogeneous flow structures prevail because of the clustering of particles, which impacts the quality of the gas-solid contact. This phenomenon results as a competition between fluid-particle interaction (i.

New insight into the additives in preparation and reduction of shield slurry.

In the preparation of the slurry in the slurry shield (SSS) and subsequent reduction of the waste slurry produced by the slurry shield (WSSS), the additives in SSS improve the quality of filtration cake on the excavation surface, but they may also remain in WSSS, which have a negative impact on the reduction efficiency of WSSS. Therefore, it is valuable to establish the relationship between SSS and WSSS with additives as a link. Given this, this paper prepared WSSS with different dosages of additives and studied the influence of residual additives on the reduction.

Epidemiological Evaluation of -Induced Foodborne Outbreaks - China, 2010-2020.

Introduction: () is a common gram-positive bacterium that contaminates starch-rich food and can cause outbreaks of foodborne diseases. This study describes the characteristics of outbreaks caused by in China during 2010-2020 and explore the possible reasons for changes in the number of outbreaks over time. Results of this analysis can efficiently help guide and allocate public resources to prevent caused foodborne diseases.

Attribution Analysis of Household Foodborne Disease Outbreaks in China, 2010-2020.

Foodborne diseases have become a serious public health problem worldwide, and foodborne disease outbreaks have placed a heavy disease burden on China. Foodborne disease outbreaks occur most frequently among families in China. The objectives of this study were to analyze the cause of household foodborne disease outbreaks in China from 2010 to 2020 and to identify where preventive measures could be targeted.

[Status and related factors of overweight and obesity among children and adolescents aged 6-17 in Yunnan Province during 2016-2017].

Objective: To understand the status and related factors of overweight and obesity in children and adolescents aged 6-17 in Yunnan Province.

Methods: From 2016 to 2017, 3463 children and adolescents aged 6-17 from 65 primary and secondary schools in 13 counties of Yunnan Province were selected by stratified cluster sampling method for face-to-face questionnaire survey, including 1716 boys and 1747 girls, 2098 elementary school students, 762 middle school students, 603 high school students, of which, 1368 students from urban area and 2095 students from rural area. The questionnaire included information including, weekly consumption of sugary drinks, sweets, puffed food, fruits, vegetables, breakfast, daily activities of moderate or high intensity, school sports, daily hours of playing video games and watching TV, daily sleep and outdoor activities.

Governance matters: Urban expansion, environmental regulation, and PM2.5 pollution.

Increasing PM2.5 pollution in urban expansion threatens citizens' health. Environmental regulation has proven to be an effective tool to directly combat PM2.

Epidemiology of foodborne bongkrekic acid poisoning outbreaks in China, 2010 to 2020.

Foodborne bongkrekic acid (BA) poisoning is a fatal foodborne disease in China. From 2010-2020, a total of 19 BA poisoning outbreaks were reported to the China National Foodborne Disease Outbreak Surveillance System. These outbreaks involved 146 illnesses, 139 hospitalizations, and 43 deaths, with a case-fatality rate of 29.

Global trends in the incidence and mortality of asthma from 1990 to 2019: An age-period-cohort analysis using the global burden of disease study 2019.

Background: Asthma is a major global health challenge. The global strategic management and prevention of asthma report has been published, but health system planning for asthma requires a careful assessment of asthma epidemiology. This study described the incidence and mortality of global asthma from 1990 to 2019.