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111.
Metal sulfides are gaining prominence as conversion anode materials for lithium/sodium ion batteries due to their higher specific capacities but suffers from low stability and reversibility issues. In this work, the electrochemical properties of CuS anode material has been successfully enhanced by its composite formation using graphitic carbon nitride (g-C3N4). The CuS nanoparticles are distributed evenly in the exfoliated g-C3N4 matrix rendering higher electronic conductivity and space for volume alterations during the repeated discharge/charge cycles. The 0.8CuS:0.2g-C3N4 composite when used as an anode for lithium ion coin cell exhibits a reversible capacity of 478.4 mA h g−1 at a current rate of 2.0 A g−1 after a run of 1000 cycles which is better than that reported for CuS composites with any other carbon-based matrix. The performance is equally impressive when 0.8CuS:0.2g-C3N4 composite is used as an anode in a sodium ion coin cell and a reversible capacity of 408 mA h g−1 is obtained at a current rate of 2.0 A g−1 after a run of 800 cycles. A sodium ion full cell with NVP cathode and 0.8CuS:0.2g-C3N4 composite anode has been fabricated and cycled for 100 runs at a current rate of 0.1 A g−1. It can be inferred that the g-C3N4 matrix improves the ion transfer properties, alleviates the volume alteration happening in the anode during the discharge/charge process and also helps in preventing the leaching of polysulfides generated during the electrochemical process.Metal sulfides are gaining prominence as conversion anode materials for lithium/sodium ion batteries due to their higher specific capacities but suffers from low stability and reversibility issues. 相似文献
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113.
Hyperglycemia in COVID-19 infection without diabetes mellitus: Association with inflammatory markers
Harinivaas Shanmugavel Geetha Garima Singh Abinesh Sekar Maya Gogtay Yuvaraj Singh George M Abraham Nitin Trivedi 《World Journal of Clinical Cases》2023,11(6):1287-1298
BACKGROUND New onset hyperglycemia is common in patients with severe coronavirus disease 2019(COVID-19) infection. Cytokine storm due to COVID-19 infection is an essential etiology for new-onset hyperglycemia, but factors like direct severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)-induced pancreatic β-cell failure have also been postulated to play a role.AIM We plan to investigate further the mechanisms underlying SARS-CoV-2 infectioninduced hyperglycemia, particularly the rationale ... 相似文献
114.
Xu J Wang R Xie ZH Odero-Marah V Pathak S Multani A Chung LW Zhau HE 《The Prostate》2006,66(15):1664-1673
BACKGROUND: The ARCaP cell line was established from the ascites fluid of a patient with metastatic prostate cancer. This study characterized the host microenvironmental role in cancer progression, epithelial to mesenchymal transition (EMT), and bone and adrenal metastasis in parental ARCaP and its derived cell subclones. METHODS: Cytogenetic profiles, growth, migration, invasion, cellular interaction, drug sensitivities, and gene expression of ARCaP cell subclones were compared. In vivo gene expression, behavior, and metastasis of ARCaP subclones were analyzed by serial intracardiac injections into SCID mice. RESULTS: ARCaP(E) cells, with cobblestone morphology, underwent EMT through cellular interaction with host bone and adrenal gland. Lineage-derived ARCaP(M) cells, with spindle-shape fibroblastic morphology, exhibited decreased cell adhesion and increased metastasis to bone and adrenal gland. Cytogenetic analyses of parental and ARCaP subclones confirmed their clonality. CONCLUSIONS: ARCaP uniquely models the molecular basis of prostate cancer bone and adrenal metastases and epithelial to mesenchymal transition. 相似文献
115.
The present communication reports the dose and duration dependent toxicity of a PCB, Aroclor 1254, to a few ion dependent ATPases, Acid phosphatase, Alkaline phosphatase and Glucose-6-phosphatase in the whole brain tissue of mice. Two groups of mice were subjected to two sublethal doses (0.1 and 1 mg kgbw−1 day−1) of PCB orally and exposed for 4, 8 or12 days. A separate control group received the corn oil vehicle for the same exposure times. The observed results indicated exposure duration dependent changes in the enzymatic levels in the brain. The results suggest that the alteration in the enzymatic activity was possibly due to imposed oxidative stress generated by Aroclor 1254 on membrane-bound ion-dependent ATPases and other phosphatases in the brain tissue. 相似文献
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Ketan D. Mehta Rashmi Gundappa Rajiv Contractor Viral Sangani Ashit Pathak Priti Chawda 《World journal of surgery》2010,34(8):1828-1831
Background
Lung hydatid disease is an endemic problem in Mediterranean countries, and the ideal surgical management for it is still debated. In this prospective study, we aimed to evaluate the feasibility and safety of thoracoscopy in patients with lung hydatid disease. We studied the advantages of thoracoscopic procedure over posterolateral thoracotomy. 相似文献118.
Tabraze Rasul Edmund Leung Kirsten McArdle Rajiv Pathak Sanjay Dalmia 《Digestive endoscopy》2010,22(4):351-353
Splenic rupture is a life‐threatening condition characterized by internal hemorrhage, often difficult to diagnose. Colonoscopy is a gold standard routine diagnostic test to investigate patients with gastrointestinal symptoms as well as to those on the screening program for colorectal cancer. Splenic injury is seldomly discussed during consent for colonoscopy, as opposed to colonic perforation, as its prevalence accounts for less than 0.1%. A 66‐year‐old Caucasian woman with no history of collagen disorder was electively admitted for routine colonoscopy for surveillance of adenoma. She was admitted following the procedure for re‐dosing of warfarin, which was stopped prior to the colonoscopy. The patient was found collapsed on the ward the following day with clinical shock and anemia. Computed tomography demonstrated grade 4 splenic rupture. Immediate blood transfusion and splenectomy was required. Splenic rupture following routine colonoscopy is extremely rare. Awareness of it on this occasion saved the patient's life. Despite it being a rare association, the seriousness warrants inclusion in all information leaflets concerning colonoscopy and during its consent. 相似文献
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120.
Prabhakar A. Tembhurne Bimalendu Mondal Kunj B. Pathak Sanchay K. Biswas Aniket Sanyal Mahendra P. Yadav Santanu K. Bandyopadhyay Raj K. Singh 《Archives of virology》2010,155(1):89-95
Sequence analysis of segment 2 (seg-2) of three Indian bluetongue virus (BTV) isolates, Dehradun, Rahuri and Bangalore revealed
99% nucleotide identity amongst them and 96% with the reference BTV 23. Phylogenetic analysis grouped the isolates in ‘nucleotype
D’. The deduced amino acid (aa) sequence of the Bangalore isolate showed a high variability in a few places compared to other
isolates. B-cell epitope analyses predicted an epitope that is present exclusively in the Bangalore isolate. Two-way cross
serum neutralization confirmed that Bangalore isolate is antigenically different from the other two isolates. The results
of this study suggest that these three isolates are VP2 variants of BTV 23. This signifies that non-cross-neutralizing variants
of the same BTV serotype should be included in vaccine preparation. 相似文献