208 research outputs found
Solvent-Dependent Sensitization of Ytterbium and Neodymium via an Intramolecular Excimer
We report the synthesis of a di(1-pyrenyl)phosphoryl
acetophenone ligand containing two pyrenyl moieties linked by a single
phosphorus atom. The ligand exhibits solvent-dependent emission: in
nonpolar solvents, typical monomeric pyrene emission is observed,
whereas in polar solvents, an additional broad and structureless emission
appears. The emission in polar solvents is concentration independent
and is attributed to the emission of an intramolecular excimer. The
coordination of the di(1-pyrenyl)phosphoryl acetophenone ligand as
well as the corresponding deprotonated anionic di(1-pyrenyl)phosphoryl
acetophenonate ligand was studied with the near-infrared emitting
lanthanides, neodymium and ytterbium. Solvent-dependent sensitization
of both lanthanides was observed and correlates with the presence
of the excimer emission. Sensitization of ytterbium is more efficient
than neodymium, and the overall quantum yields were found to be 12.8
and 1.9% for ytterbium and neodymium, respectively
Prevalence of NAFLD according to the day napping duration.
<p>Data are n(%). N of cohort 1 is 6438 and for cohort 2 is 170.</p><p>*cohort 2 including 80 non-nappers and 90 nappers.</p
Parameters in cohort 1 population according to whether they take day naps.
<p>Data are present as median (IQR). <sup>a</sup><i>P</i><0.01 compared with non-nappers, <sup>b</sup><i>P</i><0.05 compared with non-nappers.</p
Association of NAFLD with duration of day napping adjusted by inflammtory covariates in cohort 2.
<p>*The basic model included the following covariates: age, sex, education, current or past smoking and alcohol consumption, snoring, SBP, DBP, and duration of night sleep.</p>†<p>The added model including: walk time, WHR, BMI, diabetes. SFRP5, Secreted Frizzled-related Protein; PGRN, progranulin; IL-6, interleukin-6.</p
Circulating SFRP5, PGRN, IL-6, and HOMA-IR levels in cohort 2 population according to duration of day napping.
<p>Data are presented as means±SD. The <i>P</i> trend <0.001 for SFRP5, PGRN, IL-6, and HOMA-IR according to the duration of day napping. To analyze the statistical significance for a linear trend, these four variables were divided into tertiles. <sup>a</sup><i>P</i><0.01 compared with non-nappers, <sup>b</sup><i>P</i><0.05 compared with non-nappers, <sup>c</sup><i>P</i><0.01 compared with day napping duration <0.5 h, <sup>d</sup><i>P</i><0.05 compared with day napping duration <0.5 h, <sup>e</sup><i>P</i><0.01 compared with day napping duration 0.5–1 h.</p
Image_7_Combining association with linkage mapping to dissect the phenolamides metabolism of the maize kernel.pdf
Phenolamides are important secondary metabolites in plant species. They play important roles in plant defense responses against pathogens and insect herbivores, protection against UV irradiation and floral induction and development. However, the accumulation and variation in phenolamides content in diverse maize lines and the genes responsible for their biosynthesis remain largely unknown. Here, we combined genetic mapping, protein regulatory network and bioinformatics analysis to further enhance the understanding of maize phenolamides biosynthesis. Sixteen phenolamides were identified in multiple populations, and they were all significantly correlated with one or several of 19 phenotypic traits. By linkage mapping, 58, 58, 39 and 67 QTLs, with an average of 3.9, 3.6, 3.6 and 4.2 QTLs for each trait were mapped in BBE1, BBE2, ZYE1 and ZYE2, explaining 9.47%, 10.78%, 9.51% and 11.40% phenotypic variation for each QTL on average, respectively. By GWAS, 39 and 36 significant loci were detected in two different environments, 3.3 and 2.8 loci for each trait, explaining 10.00% and 9.97% phenotypic variation for each locus on average, respectively. Totally, 58 unique candidate genes were identified, 31% of them encoding enzymes involved in amine and derivative metabolic processes. Gene Ontology term analysis of the 358 protein-protein interrelated genes revealed significant enrichment in terms relating to cellular nitrogen metabolism, amine metabolism. GRMZM2G066142, GRMZM2G066049, GRMZM2G165390 and GRMZM2G159587 were further validated involvement in phenolamides biosynthesis. Our results provide insights into the genetic basis of phenolamides biosynthesis in maize kernels, understanding phenolamides biosynthesis and its nutritional content and ability to withstand biotic and abiotic stress.</p
Table1_Application of IMB model in preventing venous thromboembolism in elderly lung cancer patients.docx
ObjectiveThis study aims to explore the effects of the Information-Motivation-Behavioral (IMB) Skills Model on the prevention of Venous Thromboembolism (VTE) in elderly lung cancer patients.MethodsA convenience sampling method was used to select study participants who were hospitalized for treatment between November 2022 and August 2023 at a tertiary hospital in Neijiang and met the inclusion and exclusion criteria. The control group (n = 41) received conventional health education, while the intervention group (n = 40) received health education based on the IMB Skills Model over three months. The scores of the Venous Thrombosis Knowledge, Participation in Thrombosis Prevention Willingness and Behavior Questionnaire, and Quality of Life Measurement Scale (QLQ-C30) were compared before the intervention and after three months. After three months of intervention, the hospital satisfaction and VTE incidence rates in both groups were investigated and compared.ResultsAfter three months of intervention, the scores for the Venous Thrombosis Knowledge, (Participation in Thrombosis Prevention Willingness and Behavior Questionnaire in the intervention group were higher than those in the control group (P 2 = 4.336, P = 0.037).ConclusionNursing interventions based on the IMB Skills Model for elderly lung cancer patients can enhance patients’ understanding of venous thrombosis, increase willingness and active participation in thrombosis prevention, improve quality of life, increase hospital satisfaction, and reduce the incidence of VTE.</p
Regression results for eastern, central, and western China.
Regression results for eastern, central, and western China.</p
Two-stage permutation tests for determining homogeneity within a spatial cluster
The discovery of spatial clusters formed by proximal spatial units with similar non-spatial attribute values plays an important role in spatial data analysis. Although several spatial contiguity-constrained clustering methods are currently available, almost all of them discover clusters in a geographical dataset, even though the dataset has no natural clustering structure. Statistically evaluating the significance of the degree of homogeneity within a single spatial cluster is difficult. To overcome this limitation, this study develops a permutation test approach Specifically, the homogeneity of a spatial cluster is measured based on the local variance and cluster member permutation, and two-stage permutation tests are developed to determine the significance of the degree of homogeneity within each spatial cluster. The proposed permutation tests can be integrated into the existing spatial clustering algorithms to detect homogeneous spatial clusters. The proposed tests are compared with four existing tests (i.e., Park’s test, the contiguity-constrained nonparametric analysis of variance (COCOPAN) method, spatial scan statistic, and q-statistic) using two simulated and two meteorological datasets. The comparison shows that the proposed two-stage permutation tests are more effective to identify homogeneous spatial clusters and to determine homogeneous clustering structures in practical applications.</p
Image_2_Combining association with linkage mapping to dissect the phenolamides metabolism of the maize kernel.pdf
Phenolamides are important secondary metabolites in plant species. They play important roles in plant defense responses against pathogens and insect herbivores, protection against UV irradiation and floral induction and development. However, the accumulation and variation in phenolamides content in diverse maize lines and the genes responsible for their biosynthesis remain largely unknown. Here, we combined genetic mapping, protein regulatory network and bioinformatics analysis to further enhance the understanding of maize phenolamides biosynthesis. Sixteen phenolamides were identified in multiple populations, and they were all significantly correlated with one or several of 19 phenotypic traits. By linkage mapping, 58, 58, 39 and 67 QTLs, with an average of 3.9, 3.6, 3.6 and 4.2 QTLs for each trait were mapped in BBE1, BBE2, ZYE1 and ZYE2, explaining 9.47%, 10.78%, 9.51% and 11.40% phenotypic variation for each QTL on average, respectively. By GWAS, 39 and 36 significant loci were detected in two different environments, 3.3 and 2.8 loci for each trait, explaining 10.00% and 9.97% phenotypic variation for each locus on average, respectively. Totally, 58 unique candidate genes were identified, 31% of them encoding enzymes involved in amine and derivative metabolic processes. Gene Ontology term analysis of the 358 protein-protein interrelated genes revealed significant enrichment in terms relating to cellular nitrogen metabolism, amine metabolism. GRMZM2G066142, GRMZM2G066049, GRMZM2G165390 and GRMZM2G159587 were further validated involvement in phenolamides biosynthesis. Our results provide insights into the genetic basis of phenolamides biosynthesis in maize kernels, understanding phenolamides biosynthesis and its nutritional content and ability to withstand biotic and abiotic stress.</p
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