LDH Ternary Nanocomposites: g-C₃N₄ Intercalated ZnOMg-Al for Superior Photocatalytic Activity towards Dye Degradation

Photocatalytic dye degradation has received more attention as an affordable and effective way to treat the dye polluted water. In the present chapter, we are going to discuss; (i) the preparation and photophysical characterization of g-C3N4 intercalated ZnO\Mg-Al LDH, a novel ternary nanocomposite, and (ii) its visible light photocatalytic degradation activity against the methylene blue dye. LDHs are 2D materials composed of “brucite-like” cationic layers where an inclusion of trivalent cations presents an overall positive charge to the nanosheets. g-C3N4 is one of the organic semiconductor photocatalyst which active for several types of reactions such as CO2 reduction, water splitting, and degradation because of its stable, non-toxic, and earth-abundant nature. Mainly, the development of numerous 2D g-C3N4 nanosheets has been extensively used in the field of photocatalyst. By the combination heterojunction with 2D/2D interface can effectively improve the photocatalytic activity. The nitrogen-rich g-C3N4 intercalated ZnO\Mg-Al LDH ternary nanocomposite formation could follow the direct dye degradation process and results enhance the visible light absorption. The enhanced photocatalytic activity is mainly due to the improved charge separation rate and high number of photogenerated electrons. The large number of photogenerated electrons and high charge separation efficiency are effectively influence the dye degradation efficiency

Structural, electronic and magnetic properties of some early vs late transition dimetallaborane clusters - A theoretical investigation

International audienceThe strength of DFT methods in analyzing the electronic and magnetic properties of a series of dimetallaboranes of varied stoichiometry and architectural core, namely M2B3, M2B4 and M2B5 with both early- and late-transition metals is demonstrated. In particular, the observed 1H and 11B chemical shifts of most of the studied compounds are reproduced with a good accuracy of a few ppm at the DFT-GIAO BP86/TZ2P/SC level for the compounds with first-row transition metal elements and at the B3LYP/TZ2P/SO level for those with second- and third-row transition metal elements. This allows structural applications in elucidating the number and the location of bridging hydrogen atoms in experimentally poorly characterized metallaboranes such as (Cp*Cr)2B4H

An evaluation of teachers opinions about the servant leadership behaviours of school principals: A critical review

This is a review of 'An Evaluation of Teachers' Opinions about the Servant Leadership Behaviours of School Principals' published in Educational Process: International Journal. That article delves into how school teachers perceive the implementation of the 'Servant Leadership Behaviours' concept by school principals, where teachers serve under these principals' supervision. It also identifies the level of this concept's application in primary and secondary schools. The article has strengths and weaknesses. The concept of servant leadership by school principals is well-explained and it effectively employs methodology (snowball sampling and content analysis). It systematises data, succeeds in answering the research questions, and its references are compatible with bibliographic rules. But the article lacks a research problem statement or review of past studies, has a shallow and unorganised introduction, and only vaguely distinguishes data analysis from its overall conclusion. Finally, the current review identifies the article's positives for readers despite its few weaknesses.. © 2019 Primrose Hall Publishing Group

Intra muscular hemangioma of masseter: A rare case scenario

Intramuscular hemangioma (IMH) is a rare congenital benign vascular tumour occuring in the skeletal muscles. Mostly they occur in the muscles of lower extremity and rarely in the muscles of oral cavity. This is a case report of a 37 year old female patient with a Chief complaint of painless dependent swelling in the left middle third of the cheek region for the past 4 years. Clinical examination supported by the findings of Ultrasonography [USG] and Magnetic resonance imaging [MRI] leading to the diagnosis of intramuscular hemangioma of masseter. The diagnosis is later confirmed after Excisional biopsy followed by histopathologic evalution of the biopsied section. The masseter muscle is most frequent muscle accounting for 5% of all intramuscular hemangiomas. Due to the fibro vascular nature IMH have a rubbery, firm texture and vascular bruits or thrills are infrequent. The management has ranged from steroids to injection of sclerosing agents, radiation therapy, and surgical excision

Ranitidine Alleviates Anxiety-like Behaviors and Improves the Density of Pyramidal Neurons upon Deactivation of Microglia in the CA3 Region of the Hippocampus in a Cysteamine HCl-Induced Mouse Model of Gastrointestinal Disorder

Elevated levels of histamine cause over-secretion of gastric hydrochloric acid (HCl), leading to gastrointestinal (GI) disorders and anxiety. Ranitidine is an antihistamine drug widely used in the management of GI disorders, as it works by blocking the histamine−2 receptors in parietal cells, thereby reducing the production of HCl in the stomach. While some reports indicate the neuroprotective effects of ranitidine, its role against GI disorder-related anxiety remains unclear. Therefore, we investigated the effect of ranitidine against anxiety-related behaviors in association with changes in neuronal density in the hippocampal cornu ammonis (CA)–3 region of cysteamine hydrochloride-induced mouse model of GI disorder. Results obtained from the open field test (OFT), light and dark box test (LDBT), and elevated plus maze (EPM) test revealed that ranitidine treatment reduces anxiety-like behaviors in experimental animals. Nissl staining and immunohistochemical assessment of ionized calcium-binding adapter molecule (Iba)-1 positive microglia in cryosectioned brains indicated enhanced density of pyramidal neurons and reduced activation of microglia in the hippocampal CA–3 region of brains of ranitidine-treated experimental mice. Therefore, this study suggests that ranitidine mediates anxiolytic effects, which can be translated to establish a pharmacological regime to ameliorate anxiety-related symptoms in humans

Transperineal Ultrasound as an Adjunctive Modality in the Evaluation of ‘H or N’ Type of Recto-urethral Fistula: Technical Note

Anorectal malformations (ARMs) encompass a complex spectrum of congenital anomalies and H/N type anorectal malformations are extremely rare. In the presence of colostomy, an augmented pressure colostogram with or without retrograde or micturating cystourethrogram is the investigation of choice. Transperineal ultrasound is an imaging technique that allows a fairly accurate morphological assessment of ARMs along with dynamic evaluation of the anorectal structures and pelvic floor anatomy. Here we describe the role of transperineal ultrasound as an adjunctive modality in diagnosis of one such complex anomaly