Contribution of Ex-Situ and In-Situ X-ray Grazing Incidence Scattering Techniques to the Understanding of Quantum Dot Self-Assembly:A Review

Quantum dots are under intense research, given their amazing properties which favor their use in electronics, optoelectronics, energy, medicine and other important applications. For many of these technological applications, quantum dots are used in their ordered self-assembled form, called superlattice. Understanding the mechanism of formation of the superlattices is crucial to designing quantum dots devices with desired properties. Here we review some of the most important findings about the formation of such superlattices that have been derived using grazing incidence scattering techniques (grazing incidence small and wide angle X-ray scattering (GISAXS/GIWAXS)). Acquisition of these structural information is essential to developing some of the most important underlying theories in the field

Selection Methods in Poultry Breeding: From Genetics to Genomics

Scientific and technological advancements have led to great expansion of poultry sector in last few decades. The development of genetically superior stocks capable of higher production, even under adverse climatic conditions, has transformed poultry from rural farming to full-fledged industry within 30–35 years. Increase in production volume and productivity per bird may largely be attributed to the combined crossbred and purebred selection (CCPS). The superior purebred lines were evaluated for their nicking ability by specialized cross-breeding program, and the best nicking male and female lines were used for developing four-way commercial crosses. With advancement in molecular techniques, the DNA marker technology emerged as a finer tool for assessing the genetic variability. Genome-wide scan using microsatellites led to identification of quantitative trait loci (QTL) for their use in marker-assisted selection (MAS). Subsequently, the single nucleotide polymorphisms (SNPs) were discovered as third generation of genetic markers. Recent “next-generation sequencing” technique led to the development of high-density SNP arrays as powerful tool for genetic analysis. Predicting genomic estimate of breeding value (GEBV) of individual using SNPs across the whole genome paved way to conceptualization of “genomic selection” which emerged as the most advanced technology to revolutionize the animal production

The poetry of Swami Vivekananda: An Exploration into the Romanticism

The present research paper focuses on the Romantic traits and tendencies in the poetry of Swami Vivekananda. Swami Vivekananda is the initial signature of poetry on the manuscript of Indian English literature. Generally applauded as the fiery orator in the world, his poetic introduction has almost been unnoticed by the critical pens. He is not a poet who compiles volume after volume but writes when he is overwhelmed by ‘the spontaneous overflow of powerful feelings’. His poetry is remarkable for various romantic traits. The portrayal of child, love to humanity, love for love’s sake, freedom, imagery and imagination are the echoes of Romanticism in his poetry.  He reminds us of Wordsworth, Coleridge, Shelley and Keats in his instincts and poetic tendencies. His poems, though countable on the finger-tips, are the sublime poetic pieces of artistic culmination. This paper also focuses on the similarities and dissimarities of his poetry with the great poets of the Romantic era

Distinguishing islet amyloid polypeptide fibril structures with infrared isotope-label spectroscopy

Here, we performed spectral simulations of the amide-I vibrational spectra for three proposed fibril structures of the human islet amyloid polypeptide, which is involved in type II diabetes. We modeled both the overall absorption and two-dimensional infrared spectra for these structures. We further analyzed the isotope-labeled spectra, including the variation between structures. The analysis suggests that the infrared spectra of the cryo-electron microscopy structure provide the best match with experimental data. We further simulated isotope-labeled dilu- tion spectroscopy investigating the correlation between the predicted spectral peak shift and the coupling between the amide units. While this correlation works in most cases, failures were observed when the isotope-labeled spectra were broad compared to the coupling or exhibited structure. These findings will be useful in the quest for potential toxic fibril formation intermediates

Emulgel of Rumex hastatus D. Don Methanolic Root Extract with Antifungal Activity: Formulation and Evaluation

This study emphasised on the production of ‘Rumex Hastatus’ D. Don methanolic root extract for antifungal purposes. We performed a variety of physical and chemical analyses. We also executed many phytochemical investigations. Extracts from sequential hot percolation (Soxhlet) were subjected to preliminary phytochemical screening. The objective of this investigation was to formulate and analyze a herbal emulgel with antifungal activity based on Rumex hastatus root extract. "The purpose of this study is to determine the antifungal activity of herbal emulgel formulation using Rumex hastatus root extract" might serve as an appropriate substitute for the original sentence. The extract has antifungal properties and is used in the formulation as an active therapeutic product. The extraction employed methanol, and the yield was found to be 26%. many phytoconstituents were found in the extract, including alkaloids, flavonoids, saponins, tannins, phenols, and anthraquinone glycoside. Despite the fact that this is an early examination, the results show that the generated emulgel is effective, and the pure chemical responsible for the effect should be extracted and studied. All of the developed formulations were effective, although formulation F3 showed the most promising outcomes of the four compositions and can be recommended for pilot scale up after constituent isolation

Phase Coexistence of Mn Trimer Clusters and Antiferromagnetic Mn Islands on Ir(111)

Clusters supported by solid substrates are prime candidates for heterogeneous catalysis and can be prepared in various ways. While mass-selected soft-landing methods are often used for the generation of monodisperse particles, self-assembly typically leads to a range of different cluster sizes. Here we show by scanning tunneling microscopy measurements that in the initial stages of growth Mn forms trimers on a close-packed hexagonal Ir surface, providing a route for self-organized monodisperse cluster formation on an isotropic metallic surface. For an increasing amount of Mn, first a phase with reconstructed monolayer islands is formed, until at full coverage a pseudomorphic Mn phase evolves which is the most densely packed one of the three different observed Mn phases on Ir(111). The magnetic state of both the reconstructed islands and the pseudomorphic film is found to be the prototypical antiferromagnetic N\'eel state with 120{\deg} spin rotation between all nearest neighbors in the hexagonal layer.Comment: Founded by Marie Sk{\l}odowska-Curie Actions; SPEAR project, with grant number 95567

Self-healing epoxy/PDMS/graphene oxide nanocomposites for anti-corrosive applications

This study discusses the synthesis, characterization and development of self-healing nanocomposite of amino-terminated PDMS (Polydimethylsiloxane), Epoxy (EPON828 ̧ Diethylenetriamine (DETA)), and Graphene Oxide (GO). GO was prepared using a modified Hummer’s method and was incorporated into the PDMS-Epoxy composite in various ratios (0.1 wt.%, 0.3 wt.%, and 0.5 wt.%) using toluene as the dispersing medium. Fourier Transform Infrared Spectroscopy was used for confirming the presence of the designed/prepared structures, and thermo-mechanical analysis was performed to test the change in glass transition temperature and initiation temperature of self-healing process. The composite resins were coated on mild steel substrates by curing freshly prepared resins over the substrates at elevated temperatures. The corrosion behavior of mild steel in 3.5 wt.% NaCl solution before and after the coatings was studied using Tafel Electrochemical Polarization test. The self-healing properties of the materials were also studied by applying cuts on the material and letting them heal under elevated temperatures, and the results showed that the prepared coating demonstrated an effective corrosion resistance for mild steel for various marine application

Delayed Sheehan's syndrome diagnosed during the evaluation of secondary infertility: A case report

Key Clinical Message Sheehan's syndrome may present with postpartum lactation failure and amenorrhea or with features of isolated hypopituitarism to panhypopituitarism. A high index of suspicion is required in a relevant clinical setting of postpartum hemorrhage

Characterization of Caecum and Crop Microbiota of Indian Indigenous Chicken Targeting Multiple Hypervariable Regions within 16S rRNA gene

<p>Krona charts depicting the abundance and distribution of microbial diversity from phylum to species level through graphical representation</p