In order to achieve interaction and collaboration with humans, robots need to have the ability for tactile perception of simulating human. Traditional methods use electrically connected sensors with complex arrays, leading to intricate wiring, high manufacturing costs, and demanding current environments. A flexible sensor with simple structure, easy preparation process, and low cost based on triboluminescence effect is proposed in this paper, which avoids the complex array and wiring of traditional sensors.
View Article and Find Full Text PDFIn recent years, magnetic resonance imaging has been widely used in the medical field. During the scan, if the human body moves, then there will be motion artifacts on the scan image, which will interfere with the diagnosis and only be found after the end of the scan sequence, resulting in a waste of manpower and resources. However, there is a lack of technology that halts scanning once motion artifacts arise.
View Article and Find Full Text PDFPhonon polaritons, quasiparticles arising from strong coupling between electromagnetic waves and optical phonons, have potential for applications in subdiffraction imaging, sensing, thermal conduction enhancement, and spectroscopy signal enhancement. A new class of phonon polaritons in low-symmetry monoclinic crystals, hyperbolic shear polaritons (HShPs), have been verified recently in β-GaO by free electron laser (FEL) measurements. However, detailed behaviors of HShPs in β-GaO nanostructures still remain unknown.
View Article and Find Full Text PDFBackground: The role of androgen receptor (AR) in evaluating the prognosis of patients with endometrial cancer (EC) remains controversial. Here, we performed a meta-analysis to assess whether AR expression improves EC survival outcomes.
Methods: We searched related articles published before August 2021 in PubMed, EMBASE, and Web of Science.
Background: Pyroptosis is regulated by long non-coding RNAs (lncRNAs) in ovarian cancer (OC). Therefore, a comprehensive analysis of pyroptosis-related lncRNAs (PRLs) in OC is crucial for developing therapeutic strategies and survival prediction.
Methods: Based on public database raw data, mutations in the landscape of pyroptosis-related genes (PRGs) in patients with OC were investigated thoroughly.
Lead-free single crystal, (K, Na, Li)(Nb, Ta)O:Mn, was successfully grown using top-seeded solution growth method. Complete matrix of dielectric, piezoelectric and elastic constants for [001] poled single crystal was determined. The piezoelectric coefficient measured by the resonance method was 545 pC/N, which is almost three times that of its ceramic counterpart.
View Article and Find Full Text PDFIn the present study, the gene expression of ATP-binding cassette protein E1 (ABCE1) in the EC109 human esophageal cancer cell line was silenced using electroporation to examine the effect if the ABCE1 gene on the growth migration and cell cycle of cancer cells. The small interference (si)RNA sequence of ABCE1 was designed and synthesized to transfect the EC109 cells by electroporation. The mRNA and protein expression levels of ABCE1 were then detected by reverse transcription quantitative polymerase chain reaction (RT-qPCR) and western blot analysis.
View Article and Find Full Text PDFCell Physiol Biochem
September 2015
Background/aims: Although early studies show that Mdm2 is the primary E3 ubiquitin ligase for the p53 tumor suppressor, an increasing amount of data suggests that p53 ubiquitination and degradation are more complex than once thought. Here, we investigated the role of RNF125, a non-Mdm2 ubiquitin-protein ligase, in the regulation of p53.
Methods And Results: RNF125 physically interacted with p53 in exogenous/endogenous co-immunoprecipitation (IP) and GST-pull down assay, and a C72/75A mutation of RNF125 did not interfere with this interaction.
A self-consistent complete set of dielectric, piezoelectric, and elastic constants for single domain Ta modified (K, Na)NbO (KNN) crystal was determined. This full set constant for single domain KNN-based crystals allowed the prediction of orientation dependence of the longitudinal dielectric, piezoelectric, elastic coefficients, and electromechanical coupling factors. The maximum piezoelectric and electromechanical properties were found to exist near [001] .
View Article and Find Full Text PDFPhys Status Solidi Rapid Res Lett
January 2014
Li, Ta modified (K,Na)NbO single crystals with the size of 18 mm × 18 mm × 10 mm were successfully grown by top-seeded solution growth method, with orthorhombic-tetragonal phase transition temperature ~79 °C and Curie temperature ~276 °C. The electromechanical coupling factors and were found to be ~88% and ~65%, respectively. The piezoelectric coefficient for the [001] poled crystals reached 255 pC/N.
View Article and Find Full Text PDFDomain structures and their evolution with temperature in the [001] oriented (K,Na)(Nb,Ta)O (KNNT) single crystal have been studied before and after poling by polarizing light microscopy. The results indicate that the KNNT crystal is difficult to be completely poled by the room temperature poling process. The domain structure is rather stable in the orthorhombic phase, but exhibits substantial changes near the phase transition temperatures and .
View Article and Find Full Text PDFCell Biochem Biophys
December 2014
This study was devised to investigate the genetic effect modification of the BsmI polymorphism associated with the susceptibility to breast cancer. Case-control studies of the BsmI polymorphism and breast cancer were searched. A total of 17 eligible publications were included in our final analysis.
View Article and Find Full Text PDFWe conducted a perspective study to investigate whether the expression of excision repair cross-complementing 1 (ERCC1), xeroderma pigmentosum group G (XPG), breast cancer 1 (BRCA1), and ribonucleotide reductase M1 (RRM1) is correlated with clinical outcome of non-small cell lung cancer (NSCLC). Patients with histologically confirmed inoperable stages IIIB and IV NSCLC were collected and followed up until January 2012. Relative cDNA quantification for ERCC1, XPG, BRCA1, and RRM1 was performed using a fluorescence-based, real-time detection method.
View Article and Find Full Text PDFAn increasing number of studies have suggested that microRNAs (miRNAs) are aberrantly expressed in numerous types of tumors and that a deregulation in miRNA expression may lead to carcinogenesis. Although miR‑218 has been demonstrated to be downregulated in several types of cancer, including medulloblastoma (MB), its involvement in MB is unclear. In the present study, the expression of miR‑218 and SH3GL1 were assessed in four MB cell lines and normal cerebellum by qPCR.
View Article and Find Full Text PDFMn modified rhombohedral Pb(InNb)O-Pb(MgNb)O-PbTiO (PIN-PMN-PT:Mn) single crystals poled along [011] crystallographic direction exhibit a "2R" engineered domain configuration, with macroscopic symmetry. The complete sets of material constants were determined using combined resonance and ultrasonic methods, and compared to [001] poled PIN-PMN-PT:Mn crystals. The thickness shear piezoelectric coefficient and electromechanical coupling factor were found to be on the order of ∼3000 pC/N and 0.
View Article and Find Full Text PDFMn modified 0.26Pb(In(1/2)Nb(1/2))O(3)-0.42Pb(Mg(1/3)Nb(2/3))O(3)-0.
View Article and Find Full Text PDFAsian Pac J Cancer Prev
June 2013
Objective: To evaluate the predictive value of GST gene polymorphisms with regard to prognosis of breast cancer patients receiving neoadjuvant chemotherapy.
Methods: A total of 159 patients were included in our study between January 2005 and January 2007. All the patients were followed up until January 2012.
Objective: To explore the effect on radiosensitivity of arsenic trioxide (As₂0₃) in conjunction with hyperthermia on the esophageal carcinoma EC-1 cell line.
Method: Inhibition of EC-1 cell proliferation at different concentrations of As₂0₃ was assessed using the methyl thiazolyl blue colorimetric method (MTT method), with calculation of IC₅₀ value and choice of 20% of the IC₅₀ as the experimental drug concentration. Blank control, As₂0₃, hyperthermia, radiotherapy group, As₂0₃ + hyperthermia, As₂0₃ + radiotherapy, hyperthermia + radiotherapy and As₂0₃ + hyperthermia + radiotherapy groups were established, and the cell survival fraction (SF) was calculated from flat panel colony forming analysis, and fitted by the 'multitarget click mathematical model'.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi
February 2006
Multimedia techniques were applied in parasitological teaching and experimental practices. In order to strengthen the practical ability of the undergraduate students, reform was conducted including a prioritization of the teaching content, use of series micro-slides and video show, etc.
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