Phosphoric acid is used as a chemical activator to prepare coconut shell carbon (PCSC), and for investigating rhodamine B (RhB) adsorption performance. The optimal conditions for the preparation of PCSC (calcined temperature, phosphoric acid concentration), and the influence of adsorption conditions (concentration, pH, etc.) on RhB and the recovery performance of optimal carbon are investigated.
View Article and Find Full Text PDFLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
September 2024
To investigate the long-term effect of partial tonsillectomy in children with tonsil hypertrophy. A total of 146 children with obstructive sleep apnea(OSA) who received surgical treatment for tonsil hyperplasia from January 2010 to January 2013 were selected and divided into the observation group(=69) and the control group(=77). The observation group was received tonsillotomy(TT), and the control group was received total tonsillectomy(TE).
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
October 2023
In order to obtain super synergy effect between adsorption and Fenton oxidation for crystal violet (CV) removement from water, in this study, Fe modified on a sponge structure peanut shell carbon (Fe/SPSC) nanocomposite was successfully synthesized by a wet impregnation method. In the Fe/SPSC sample, the prepared peanut shell carbon had a sponge-like structure, (002) crystal plane of graphite crystallite, and Fe/SPSC composite coexisted FeO and FeO crystalline, which could adsorb and enrich crystal violet molecule, decrease the concentration of CV solution rapidly. And also SPSC could do better for electrons transfer and further promote CV oxidation degradation.
View Article and Find Full Text PDFIn this study, we analyzed the removal efficiency of uranium(U(VI)) in wastewater at relatively low concentrations using strong alkaline ion exchange fiber (SAIEF). Static tests showed that the strong alkali fibers can purify U(VI) containing wastewater in a concentration range of 20-100 mg L with an optimal pH of 10.5 and contact time of 15-30 min.
View Article and Find Full Text PDFGastroenterol Nurs
December 2022
The quality of bowel preparation is an extremely important determinant of colonoscopy results. However, the efficacy of senna regimens in improving bowel cleanliness is uncertain. We conducted a systematic review and meta-analysis to synthesize data on whether using a senna bowel preparation regimen enhances the bowel cleanliness.
View Article and Find Full Text PDFBackground: Consumption of processed foods has been associated with nasopharyngeal carcinoma (NPC), but with inconsistent results. Therefore, we conducted a systematic review and meta-analysis to compute results regarding the association between processed foods and risk of NPC in included studies.
Methods: Studies exploring the association between consumption of processed food and risk of NPC were included in the present study.
Unlabelled: Description of strategies for preventing surgical complications in the treatment of laryngeal carcinomas associated with giant thyroid cancer. For this study, the clinical data of an elderly patient with laryngeal carcinoma associated with a large thyroid tumor, diabetes and hypertension were used. The patient's tumor was removed with simultaneous surgery performed by the thyroid surgery department and the laryngeal surgery department; the patient was followed for more than 3 years and the scars of tracheal granulation and laryngeal adhesions were removed with repeated laser interventions.
View Article and Find Full Text PDFBackground: Patients following radical prostatectomy will encounter various symptoms that may vary depending on the recovery of surgery and the use of adjuvant treatments. However, few studies have used the scale developed for prostate cancer to longitudinally assess the course of symptoms in Chinese patients. This study aimed to identify the symptom trajectories and the influencing factors in the prostate cancer patients of our area.
View Article and Find Full Text PDFBackground: The effect of ginsenosides on the growth and apoptosis of human lens epithelial (HLE) B3 cells exposed to HO was investigated. In addition, the effect of ginsenosides on gene expression in HLE-B3 cells was analyzed using microarray assays to determine its molecular mechanism.
Methods: HLE-B3 cells were treated with 1.
The presence of pesticides in water has emerged as a momentous environmental issue over the past decades. Herein, a terbium doped Ti/PbO (denoted as Ti/PbO-Tb) dimensionally stable Ti/PbO-Tb anode has been successfully prepared by one-step electrodeposition path for electrocatalytic degradation of imidacloprid (IMD) wastewater with high efficiency. Ti/PbO-Tb electrode presents higher oxygen evolution potential, lower charge transfer resistance, stronger stability, longer service lifetime and outstanding electrocatalytic activity than Ti/PbO electrode.
View Article and Find Full Text PDFHere, a simple and general approach was developed for depositing metal nanoparticles on alkanedithiol self-assembled monolayers (SAMs) based on the spontaneous reduction of metal ions by the free SH sites of SAMs. By immersing the alkanedithiol SAM/Au in a corresponding metalcontaining solution (HAuCl₄, AgNO₃, H₂PtCl and PdSO₄), Au, Ag, Pt and Pd clusters, respectively, could be formed on top of the SAM/Au(111) electrode surface, which was confirmed by STM characterization. The size, morphology and coverage of clusters/islands can be tuned by modulating the immersion time, which allows for possible utilization of the metal/SAM/Au(111) in catalysis, nanoelectronics and biodetection.
View Article and Find Full Text PDFIn this work, dimensionally stable Ti/SnO-RuO electrode is successfully prepared using thermal decomposition method for the electrocatalytic degradation of high-concentration industrial gallic acid (GA) effluent in detail. The surface morphology, crystal structure and element analysis of as-prepared Ti/SnO-RuO electrode are characterized by scanning electron microscopy, X-ray diffraction and X-ray fluorescence spectrometer, respectively. In addition, cyclic voltammetry, polarization curve and accelerated life tests are exploited to investigate the electrocatalytic activity and stability of Ti/SnO-RuO electrode.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2019
In this work, a novel Ti/PbO-SmO composite electrode with high electrocatalytic activity is successfully fabricated via simple electrodeposition method and further investigated for electrochemical degradation of alizarin yellow R (AYR) wastewater. The test results of X-ray diffraction, field-emission scanning electron microscopy and energy-dispersive X-ray spectroscopy confirm that SmO is successfully composited with PbO. The coating of Ti/PbO-SmO composite electrode stacked by typical pyramid-like micro-particles exhibits smooth and compact surface morphology which is conducive to enhancing the corrosion resistance of electrode.
View Article and Find Full Text PDFBogliubov-de Gennes equations are solved self-consistently to investigate the properties of bound states in chiral p-wave superconductive disks. It shows that either an s-wave or the mixed d- and s-wave state with odd-frequency and spin-triplet symmetry is induced at the vortex core, depending both on the chirality of the pairing states and on the vortex topology. It is also found that the odd-frequency triplet even parity (OTE) bound state can be manipulated with a local non-magnetic potential.
View Article and Find Full Text PDFCytochrome b5 reductase 2 (CYB5R2), a member of the flavoprotein pyridine nucleotide cytochrome reductase family, is associated with a number of physiological reactions. However, its role in cancer, especially nasopharyngeal carcinoma (NPC), has not been addressed. Here, we investigate the transcript levels and promoter methylation status of CYB5R2 in NPC derived cell lines and tumor biopsies and experimentally address its role as a tumor suppressor gene.
View Article and Find Full Text PDFToxicities were assessed for a pyrethroid (cypermethrin) and an organophosphate insecticide (chlorpyrifos) individually and in combination. A series of tests were conducted on different responses (acute, chronic, behavioral) of earthworms of species Eisenia fetida andrei in the ecological risk assessment of these pesticides. The results showed that the toxicity of the mixture of cypermethrin and chlorpyrifos was significantly higher than either of these pesticides individually, especially on the earthworm's chronic responses.
View Article and Find Full Text PDFLongan flower extract (LFE) has been shown to exhibit free radical scavenging ability and anti-inflammatory effects. However, the effect of LFE treatment on the growth of colorectal cancer cells has not been evaluated. This study investigated the effect of LFE on two colorectal cancer cell lines, SW-480 and Colo 320DM, and the possible mechanisms involved.
View Article and Find Full Text PDFGuang Pu Xue Yu Guang Pu Fen Xi
August 2009
A series of tests (lethal, sublethal, and behavioral) on earthworms were conducted as an eco-assessment of pesticides. In this study, the toxicity of cypermethrin-contaminating soil on adult and juvenile earthworms was assessed. Beside the acute and chronic tests, an avoidance response test was carried out.
View Article and Find Full Text PDFJ Environ Sci (China)
January 2008
Earthworm toxicity tests are useful tools for terrestrial risk assessment but require a hierarchy of test designs that differ in effect levels (behavior, sublethal, lethal). In this study, the toxicity of chlorpyrifos contaminated soil on earthworms was assessed. In addition to the acute and chronic tests, an avoidance response test was applied.
View Article and Find Full Text PDFGuang Pu Xue Yu Guang Pu Fen Xi
October 2005