547 research outputs found
Exploration and Analysis on the Discourse Power of Network Moral Education
Network moral education has three connotations including discourse right, discourse power and discourse effectiveness, and four characteristics including interactivity, diversity, symbolism and implicity. These characteristics to a certain extent make the position and function between the subject and object of network education change, resulting in the discourse power and discourse effectiveness out of sync. Therefore, when solving these problems, we should take the ideological beliefs as the leading point, use the new media technology means, take the discourse power construction as the starting point, occupy the discourse highland and manifest the representation. At the same time, we should take life practice as the standard, change the discourse, break the implicity, and put the initiative of network moral education in the hands of educators
TNFR2 and Regulatory T Cells: Potential Immune Checkpoint Target in Cancer Immunotherapy
TNF has both proinflammatory and antiinflammatory effects. It binds to two structurally related but functionally distinct receptors TNFR1 and TNFR2. Unlike TNFR1 that is ubiquitously expressed, TNFR2 expression is more limited to myeloid and lymphoid cell lineages including a fraction of regulatory T cells (Treg). In general, TNFR1 is responsible for TNF-mediated cell apoptosis and death, and mostly induces proinflammatory reactions. However, TNFR2 mainly leads to functions related to cell survival and immune suppression. Treg play an indispensable role in maintaining immunological self-tolerance and restraining excessive immune reactions deleterious to the host. Impaired Treg-mediated immune regulation has been observed in various autoimmune diseases as well as in cancers. Therefore, Treg might provide an ideal therapeutic target for diseases where the immune balance is impaired and could benefit from the regulation of Treg properties. TNFR2 is highly expressed on Treg in mice and in humans, and TNFR2+ Treg reveal the most potent suppressive capacity. TNF-TNFR2 ligation benefits Treg proliferation, although the effect on Treg suppressive function remains controversial. Here, we will describe in detail the TNF-mediated regulation of Treg and the potential clinical applications in cancer immunotherapy as well as in autoimmune diseases, with the focus on human Treg subsets
(Furan-2-yl)[(furan-2-yl)carbonyldisulfanyl]methanone
The molecule of the title compound, C10H6O4S2, has crystallographically imposed twofold symmetry. The dihedral angle formed by the furan rings is 80.90 (8)°. In the crystal, molecules are linked by weak C—H⋯O hydrogen bonds into chains running parallel to the a axis [C—S—S—C torsion angle = 82.04 (11)°]
Enhancing Learners’ Critical Thinking Ability Through Pedagogical Translation in English Language Teaching
The paper explores the strategic use of pedagogical translation in English language teaching (ELT) to enhance Chinese learners’ critical thinking ability. Different from the studies on translation theories and the teaching of translation to English majors, the present study assumes that pedagogical translation is a rational activity which can effectively help learners understand the source language and target language precisely. The translation of four different word categories is discussed and analyzed by using examples. It is concluded that learners can improve their critical thinking ability and language competence through designed translation activities
Robust tracking and vibration suppression for nonlinear two-inertia system via modified dynamic surface control with error constraint
Influence of Acetaldehyde Induction on Monomeric and Polymeric Polyphenols in Wine using the Polyphenol/Protein-binding Model
Polyphenols make a substantial contribution to the sensory properties of wine, and their evolution is affected by the acetaldehyde present during fermentation and ageing. In this work, five typical monomeric phenolic standards and three different polymeric flavanol fractions separated from wine were tested for polyphenol/protein binding by means of circular dichroism measurement and fluorescence spectrum assay in the presence or absence of acetaldehyde, and the formation of new oligomeric compounds linked by ethyl bridges was observed through HPLC-MS analyses. The results show that the protein-binding ability of these monomers was in the order of gallic acid > caffeic acid > quercetin > (+)-catechin > (-)-epicatechin, while acetaldehyde exerted a stronger effect on (+)-catechin and (-)-epicatechin monomers. Moreover, different wine fractions had different responses when reacted with proteins with the participation of acetaldehyde, while the polymeric proanthocyanidins produced the largest value (84.67%) of the salivary protein precipitation index and the strongest fluorescence-quenching effect
Evaluating analytical quality in clinical biochemistry laboratory using Six Sigma
Introduction: In recent years, Six Sigma metrics has become the hotspot in all trades and professions, which contributes a general procedure to
explain the performance on sigma scale. Nowadays, many large companies, such as General Healthcare, Siemens, etc., have applied Six Sigma to clinical
medicine and achieved satisfactory results. In this paper, we aim to evaluate the process performance of our laboratory by using Sigma metrics,
thereby choosing the correct analytical quality control approach for each parameter.
Materials and methods: This study was conducted in the clinical chemistry laboratory of Shandong Provincial Hospital. The five-months data of
internal quality control were harvested for the parameters: amylase (AMY), lactate dehydrogenase (LD), potassium, total bilirubin (TBIL), triglyceride,
aspartate aminotransferase (AST), uric acid, high density lipoprotein-cholesterol (HDL-C), alanine aminotransferase (ALT), urea, sodium, chlorine,
magnesium, alkaline phosphatase (ALP), creatinine (CRE), total protein, creatine kinase (CK), total cholesterol, glucose (GLU), albumin (ALB). Sigma
metrics were calculated using total allowable error, precision and percent bias for the above-mentioned parameters.
Results: Sigma values of urea and sodium were below 3. Sigma values of total protein, CK, total cholesterol, GLU and ALB were in the range of 3 to
6. Sigma values of AMY, uric acid, HDL-C, TBIL, ALT, triglyceride, AST, ALP and CRE were more than 6.
Conclusion: Amylase was the best performer with a Sigma metrics value of 19.93, while sodium had the least average sigma values of 2.23. Actions
should be taken to improve method performance for these parameters with sigma below 3
Robust tracking and vibration suppression for nonlinear two-inertia system via modified dynamic surface control with error constraint
A framework for characterising energy consumption of machining manufacturing systems
Energy consumption in machining manufacturing systems is increasingly of interest due to concern for global climate change and manufacturing sustainability. To utilise energy more effectively, it is paramount to understand and characterise the energy consumption of machining manufacturing systems. To this end, a framework to analyse energy consumption characteristics in machining manufacturing systems from a holistic point of view is proposed in this paper. Taking into account the complexity of energy consumption in machining manufacturing systems, energy flow is described in terms of three layers of machining manufacturing systems including machine tool layer, task layer and auxiliary production layer. Furthermore, the energy consumption of machining manufacturing systems is modelled in the spatial and temporal dimensions, respectively, in order to quantitatively characterise the energy flow. The application of the proposed modelling framework is demonstrated by employing a comprehensive analysis of energy consumption for a real-world machining workshop. The characteristics of energy consumption for machine tool layer, task layer and auxiliary production layer are, respectively, obtained using quantitative models in the spatial and temporal dimensions, which provides a valuable insight into energy consumption to support the exploration of energy-saving potentials for the machining manufacturing systems
Spectrums of Black Hole in de Sitter Spacetime with Highly Damped Quasinormal Modes: High Overtone Case
Motivated by recent physical interpretation on quasinormal modes presented by
Maggiore, the adiabatic quantity method given by Kunstatter is used to
calculate the spectrums of a non-extremal Schwarzschild de Sitter black hole in
this paper, as well as electrically charged case. According to highly damped
Konoplya and Zhidenko's numerical observational results for high overtone
modes\cite{Konoplya}, we found that the asymptotic non-flat spacetime structure
leads two interesting facts as followings: (i) near inner event horizon, the
area and entropy spectrums, which are given by ,
, are equally spaced accurately. (ii) However, near
outer cosmological horizon the spectrums, which are in the form of , , are not
markedly equidistant. Finally, we also discuss the electrically charged case
and find the black holes in de Sitter spacetime have similar quantization
behavior no matter with or without charge.Comment: 12 pages, 2 firures, published versio
- …