73 hasil untuk "Li-Chen Chen"
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On Certain Matrices of Bernoulli Numbers
In this work we compute the determinant and inverse matrices for a certain symmetric matrix of Rayleigh sums. As a special case we also obtain the determinants and inverses for the matrices of the Bernoulli numbers and related numbers.
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Concurrent müllerianosis of the urinary bladder and the umbilicus presenting with umbilical bleeding: a rare case report and review of the literature
Abstract Background Müllerianosis is a very rare neoplasm composed of two or three Müllerian derived tissues (endosalpinx, endometrium and endocervix). We report the first case of concurrent müllerianosis of the urinary bladder and the umbilicus presenting with umbilical bleeding. Case presentation…
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The acceptance and impact of Google Classroom integrating into a clinical pathology course for nursing students: A technology acceptance model approach
Background: Google Classroom (GC) is a free web-based instructional platform rarely used for nursing student education. The acceptance, intention to use, and learning outcomes of GC remain unclear in Taiwan. We sought to identify the technology acceptance level and factors affection the intention…
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Research Progress and Application Prospect of Facial Micro-Expression Analysis in Forensic Psychiatry
Research on facial micro-expression analysis has been going on for decades. Micro-expression can reflect the true emotions of individuals, and it has important application value in assisting auxiliary diagnosis and disease monitoring of mental disorders. In recent years, the development of…
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Single-ribonucleotide repair-mediated ligation-dependent cycling signal amplification for sensitive and specific detection of DNA methyltransferase
DNA methylation is a predominant epigenetic modification that plays crucial roles in various cellular processes. DNA methyltransferase (MTase) is responsible for DNA methylation, and its dysregulation may induce aberrant methylation patterns that are closely related to cancers. Conventional methods…
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A single quantum dot-based nanosensor with multilayer of multiple acceptors for ultrasensitive detection of human alkyladenine DNA glycosylase
Base excision repair (BER) is an important DNA repair pathway involved in the maintenance of genome stability. As the initiator of BER, DNA glycosylase can remove a damaged base from DNA through cleaving the N-glycosidic bond between the sugar moiety and the damaged base. Accurate quantification of…
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Rolling circle amplification-driven encoding of different fluorescent molecules for simultaneous detection of multiple DNA repair enzymes at the single-molecule level
DNA repair enzymes (e.g., DNA glycosylases) play a critical role in the repair of DNA lesions, and their aberrant levels are associated with various diseases. Herein, we develop a sensitive method for simultaneous detection of multiple DNA repair enzymes based on the integration of single-molecule…
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Penile metastasis from recurrent sarcoma in a teenager: a case report
Abstract Background Metastatic tumors of the penis are uncommon, and fewer than 500 cases have been reported since 1870. Most penile secondary tumors originate in organs of the genitourinary tract, followed by the gastrointestinal tract. Primary tumors of sarcoma origin are extremely rare. Herein…
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Direct conversion of phenols into primary anilines with hydrazine catalyzed by palladium
Primary anilines are essential building blocks to synthesize various pharmaceuticals, agrochemicals, pigments, electronic materials, and others. To date, the syntheses of primary anilines mostly rely on the reduction of nitroarenes or the transition-metal-catalyzed Ullmann, Buchwald–Hartwig and…
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C(sp(3))−C(sp(3)) bond formation via nickel-catalyzed deoxygenative homo-coupling of aldehydes/ketones mediated by hydrazine
Aldehydes and ketones are widely found in biomass resources and play important roles in organic synthesis. However, the direct deoxygenative coupling of aldehydes or ketones to construct C(sp(3))−C(sp(3)) bond remains a scientific challenge. Here we report a nickel−catalyzed reductive homo-coupling…
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Protective Effect of Functional Peptides Derived from Crimson Snapper Scales on Oxidative Stress Damage in Caco-2 Cells
The purpose of this study was to investigate the effect of crimson snapper scale peptides (CSSPs) on H2O2-induced oxidative damage in Caco-2 cells. The levels of lactate dehydrogenase (LDH) and interleukin-8 (IL-8) in the cell supernatant, the activity of intracellular antioxidant enzymes, the…
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Stability Analysis of a Class of SIR Epidemic Model with Delayed Spontaneous Variation of Virus
This paper considers the influence of virus spontaneous variation on the epidemic of infectious diseases, it establishes a delayed SIR epidemic model with spontaneous virus mutation, and gives a diseasefree equilibrium point, the existence and local stability of the endemic equilibrium point and…
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Multicolor fluorescence encoding of different microRNAs in lung cancer tissues at the single-molecule level
The simultaneous detection of multiple microRNAs (miRNAs) will facilitate early clinical diagnosis. Herein, we demonstrate the integration of multicolor fluorophore-encoded cascade signal amplification with single-molecule detection for simultaneous measurement of different miRNAs in lung cancer…
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Association of uric acid levels with cardiac syndrome X: A meta-analysis
Objective: The pathogenesis of elevated uric acid (UA) levels in patients with cardiac syndrome X (CSX) is unclear, and the results presented in recent papers on UA levels in patients with CSX are controversial. Therefore, we conducted a meta- analysis to assess the relationship between UA levels…
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Metabonomics study on the hepatoprotective effect mechanism of polysaccharides from different processed products of Angelica sinensis on layer chickens based on UPLC–Q/TOF–MS/MS, multivariate statistical analysis and conjoint analysis
Chicken colibacillosis is one of the most severe diseases in the poultry industry. Ceftiofur sodium (CS) is often used to treat it in clinical practice and lipopolysaccharide (LPS) accumulates in the chicken's body. Previous experimental studies found that CS combined with LPS could induce liver…
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Image Super-resolution Reconstruction Using Recursive ResidualNetwork Based on ChannelAttention
In recent years,deep learning has been widely used in image super-resolution reconstruction.To solve the problems of inadequate feature extraction,loss of details and gradient disappearance in super-resolution reconstruction methods based on deep learning,a deep recursive residual neural network…
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Memory Retention Involves the Ventrolateral Orbitofrontal Cortex: Comparison with the Basolateral Amygdala
The orbitofrontal cortex (OFC) is thought to link stimuli and actions with anticipated outcomes in order to sustain flexible behavior in an ever-changing environment. How it retains these associations to guide future behavior is less well-defined. Here we focused on one subregion of this…
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Memory Retention Involves the Ventrolateral Orbitofrontal Cortex: Comparison with the Basolateral Amygdala