4,870 research outputs found
Social Comparison Orientation and Social Adaptation Among Young Chinese Adolescents: The Mediating Role of Academic Self-Concept
This study aimed to investigate the relationship among social comparison orientation, academic self-concept (ASC), and social adaptation. A total of 1658 Chinese adolescents (48.88% male; aged 14–18 years, Mage = 16.01 ± 0.86 years) voluntarily participated in this study and completed questionnaires. Structural equation modeling (SEM) was performed to test the theory-driven model. The results showed that the relationship between comparison of opinion and social adaptation was mediated by ASC but that ASC did not play a mediating role between comparison of ability and social adaptation. These findings indicated that ASC could be one mechanism explaining the link between adolescents’ social comparison orientation and social adaptation. Furthermore, it is possible to intervene in their social comparison orientation and ASC to improve adolescents’ social adaptation
Network-Based Gene Expression Biomarkers for Cold and Heat Patterns of Rheumatoid Arthritis in Traditional Chinese Medicine
In Traditional Chinese Medicine (TCM), patients with Rheumatoid Arthritis (RA) can be classified into two main patterns: cold-pattern and heat-pattern. This paper identified the network-based gene expression biomarkers for both cold- and heat-patterns of RA. Gene expression profilings of CD4+ T cells from cold-pattern RA patients, heat-pattern RA patients, and healthy volunteers were obtained using microarray. The differentially expressed genes and related networks were explored using DAVID, GeneSpring software, and the protein-protein interactions (PPI) method. EIF4A2, CCNT1, and IL7R, which were related to the up-regulation of cell proliferation and the Jak-STAT cascade, were significant gene biomarkers of the TCM cold pattern of RA. PRKAA1, HSPA8, and LSM6, which were related to fatty acid metabolism and the I-κB kinase/NF-κB cascade, were significant biomarkers of the TCM heat-pattern of RA. The network-based gene expression biomarkers for the TCM cold- and heat-patterns may be helpful for the further stratification of RA patients when deciding on interventions or clinical trials
2,5-Dioxopyrrolidin-1-yl 3-(furan-2-yl)acrylate
The title compound, C11H9NO5, was prepared by the reaction of 2-furanacrylic acid and N-hydroxysuccinimide. The molecule consists of two approximately planar moieties, viz. a succinimide group and the rest of the molecule [the largest deviations from the least-squares planes are 0.120 (1) and 0.210 (1) Å, respectively]. The dihedral angle between these fragments is 63.70 (5)°. In the crystal, molecules are linked by C—H⋯O hydrogen bonds into two-dimensional nets
Research on electro-hydraulic composite drive winch and energy recovery system for mobile crane
Owing to the high power consumption and limited control precision of traditional hydraulic drive winch systems, this study proposes hydraulic and electric-type energy recovery systems. The accumulator used in the hydraulic type has low energy density, which makes it difficult to store a large amount of energy. Meanwhile, the electric motor/generator used in the electric type cannot solve the secondary slip because of oil leakage, which leads to low controllability and high-power consumption under near-zero speed and high torque conditions. Thus, based on electric construction machinery with high-pressure, energy-dense electric energy storage units, this study proposes an electro-hydraulic composite drive winch and energy recovery system and control strategy for mobile cranes. Considering the good control characteristics of the electric motor/generator and the high-power density of the hydraulic accumulator, this hydroelectric composite drive and energy recovery system may solve the secondary sliding challenge and ensure large torque output at near-zero speed. A simulation model of the mobile crane is established to verify the feasibility of the proposed system and control strategy. The research results showed that the system is more efficient at recovering energy when the weight is lowered by a greater distance
Traditional Chinese Medicine Zheng in the Era of Evidence-Based Medicine: A Literature Analysis
Zheng, which is also called a syndrome or pattern, is the basic unit and a key concept of traditional Chinese medicine (TCM) theory. Zheng can be considered a further stratification of patients when it is integrated with biomedical diagnoses in clinical practice to achieve higher efficacies. In an era of evidence-based medicine, confronted with the vast and increasing volume of TCM data, there is an urgent need to explore these resources effectively using techniques of knowledge discovery in databases. The application of effective data mining in the analysis of multiple extensively integrated databases can supply new information about TCM Zheng research. In this paper, we screened the published literature on TCM Zheng-related studies in the SinoMed and PubMed databases with a novel data mining approach to obtain an overview of the Zheng research landscape in the hope of contributing to a better understanding of TCM Zheng in the era of evidence-based medicine. In our results, contrast was found in Zheng in different studies, and several determinants of Zheng were identified. The data described in this paper can be used to assess Zheng research studies based on the title and certain characteristics of the abstract. These findings will benefit modern TCM Zheng-related studies and guide future Zheng study efforts
Nested Event Extraction upon Pivot Element Recogniton
Nested Event Extraction (NEE) aims to extract complex event structures where
an event contains other events as its arguments recursively. Nested events
involve a kind of Pivot Elements (PEs) that simultaneously act as arguments of
outer events and as triggers of inner events, and thus connect them into nested
structures. This special characteristic of PEs brings challenges to existing
NEE methods, as they cannot well cope with the dual identities of PEs.
Therefore, this paper proposes a new model, called PerNee, which extracts
nested events mainly based on recognizing PEs. Specifically, PerNee first
recognizes the triggers of both inner and outer events and further recognizes
the PEs via classifying the relation type between trigger pairs. In order to
obtain better representations of triggers and arguments to further improve NEE
performance, it incorporates the information of both event types and argument
roles into PerNee through prompt learning. Since existing NEE datasets (e.g.,
Genia11) are limited to specific domains and contain a narrow range of event
types with nested structures, we systematically categorize nested events in
generic domain and construct a new NEE dataset, namely ACE2005-Nest.
Experimental results demonstrate that PerNee consistently achieves
state-of-the-art performance on ACE2005-Nest, Genia11 and Genia13
Three dimensionality of band structure and a large residual quasiparticle population in BaKFeAs as revealed by the c-axis polarized optical measurement
We report on a c-axis polarized optical measurement on a
BaKFeAs single crystal. We find that the c-axis
optical response is significantly different from that of high-T cuprates.
The experiments reveal an anisotropic three-dimensional optical response with
the absence of the Josephson plasma edge in R() in the superconducting
state. Furthermore, different from the ab-plane optical response, a large
residual quasiparticle population down to was observed in
the c-axis polarized reflectance measurement. We elaborate that there exist
nodes for the superconducting gap in regions of the 3D Fermi surface that
contribute dominantly to the c-axis optical conductivity.Comment: 4 figure
Superovulation and expression of follicle-stimulating hormone receptor in young rabbit females
[EN] To optimise the use of juvenile in vitro embryo transfer technologies in young rabbit females, superovulation was performed in New Zealand White young rabbit females at different ages and the expression mode of follicle-stimulating hormone receptor (FSHR) was explored using real-time quantitative polymerase chain reaction, and in vitro maturation (IVM) together with fertilisation (IVF) was conducted immediately after superovulation. The results showed that (1) the age factor significantly affected superovulation in young rabbit females, with 60 d as an optimal age; (2) the mRNA level of FSHR exhibited a rising trend, though it was lower at 30 to 40 d of age; (3) the maturation rate of the oocytes from 60 d old rabbits was significantly higher than in those from 50 d old rabbits; (4) the fertilisation rate of oocytes was not significantly different among rabbits 50, 60 and 70 d old.This work was supported by funding from the Key Natural Science programme of Jiangsu Higher Education
Institutions (13KJA230001) and the Priority Academic Programme Development of Jiangsu Higher Education Institutions (PAPD
2011-137).Zhang, H.; Cheng, GH.; Li, YJ.; Cai, MY.; Guo, HY.; Qin, KL. (2017). Superovulation and expression of follicle-stimulating hormone receptor in young rabbit females. World Rabbit Science. 25(2):167-172. https://doi.org/10.4995/wrs.2017.4485SWORD16717225
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