Novel optically active lead-free relaxor ferroelectric (Ba0.6Bi0.2Li0.2)TiO3

We discovered a near room temperature lead-free relaxor-ferroelectric (Ba0.6Bi0.2Li0.2)TiO3 (BBLT) having A-site compositional disordered ABO3 perovskite structure. Microstructure-property relations revealed that the chemical inhomogeneities and development of local polar nano regions (PNRs) are responsible for dielectric dispersion as a function of probe frequencies and temperatures. Rietveld analysis indicates mixed crystal structure with 80% tetragonal structure (space group P4mm) and 20% orthorhombic structure (space group Amm2) which is confirmed by the high resolution transmission electron diffraction pattern. Dielectric constant and tangent loss dispersion with and without illumination of light obey nonlinear Vogel-Fulture relation. It shows slim polarization-hysteresis (P-E) loops and excellent displacement coefficients (d33 ~ 233 pm/V) near room temperature, which gradually diminish near the maximum dielectric dispersion temperature (Tm). The underlying physics for light-sensitive dielectric dispersion was probed by X-ray photon spectroscopy (XPS) which strongly suggests that mixed valence of bismuth ions, especially Bi5+ ions, are responsible for most of the optically active centers. Ultraviolet photoemission measurements showed most of the Ti ions are in 4+ states and sit at the centers of the TiO6 octahedra, which along with asymmetric hybridization between O 2p and Bi 6s orbitals appears to be the main driving force for net polarization. This BBLT material may open a new path for environmental friendly lead-free relaxor-ferroelectric research.Comment: 23 pages, 5 figure

Analysis of Learned Features and Framework for Potato Disease Detection

For applications like plant disease detection, usually, a model is trained on publicly available data and tested on field data. This means that the test data distribution is not the same as the training data distribution, which affects the classifier performance adversely. We handle this dataset shift by ensuring that the features are learned from disease spots in the leaf or healthy regions, as applicable. This is achieved using a faster Region-based convolutional neural network (RCNN) as one of the solutions and an attention-based network as the other. The average classification accuracies of these classifiers are approximately 95% while evaluated on the test set corresponding to their training dataset. These classifiers also performed equivalently, with an average score of 84% on a dataset not seen during the training phase.Comment: 15 pages, 8 figure

Hospital Supply Chain Management by Implementing RFID

Abstract- Radio Frequency Identification (RFID) systems have been successfully applied and shown its worth in many fields of manufacturing, transportation, agriculture, healthcare and supply chain just to name a few. The use of RFID in healthcare and hospital services has increased significantly over the years due to its credibility and accuracy. RFID technology is acting crucial in item level tracing and tracking systems in hospital scenarios. The aim of the paper is to express and display the role of RFID technology in maintaining the inventory level of medicines and surgical items in hospital warehouses and increase its impact in healthcare. One of the crucial points that should be noted in healthcare is that the medicines and surgical items should be made available at any point of time. The implementation of RFID technology in this area is to ensure patient safety and satisfaction by maintaining a perfect inventory of medicines and surgical items. Keywords- Enterprise management, SCOR model, RFID, healthcare, hospital

Comparative evaluation of autologous platelet aggregates versus blood clot on the outcome of regenerative endodontic therapy: a systematic review and meta-analysis

Regenerative endodontics represents a transformative approach to dental care, revitalizing necrotic teeth. This systematic review and meta-analysis evaluated the role of autologous platelet aggregates compared to the traditional blood clot method in regenerative endodontics.A systematic search was conducted in PubMed, Scopus, EBSCO, Open Grey, and Google Scholar between 1st–12th August 2024. Case series, RCTs, retrospective studies, and case reports were included. Meta-analysis on RCTs and case series utilized RevMan 5.4 software, with p=0.05 as the significance level. The JBI risk of bias tool and GRADE system assessed study quality.Nineteen studies met inclusion criteria, of which 13 were evaluated for risk of bias—11 showed low risk, and 2 were moderate. Rates of complete apical closure using PRF, BC, PRP, and CGF scaffolds ranged from 61.76% to 100%. Statistical analysis revealed no significant differences between autologous platelet aggregates and BC for outcomes such as complete apical closure (BC vs. PRP: p=0.28; BC vs. PRF: p=0.36), positive vitality (BC vs. PRP: p=0.70; BC vs. PRF: p=0.36), healing response (BC vs. PRF: p=0.23), and overall success score (BC vs. PRP: p=0.62).BC remains an effective primary scaffold for non-vital teeth with open apexes. PRP and PRF are viable alternatives when intracanal blood induction is challenging. Overall, platelet aggregates and BC showed comparable clinical and radiographic outcomes

Rapid Identification of Mycobacterium Species with the Aid of Multiplex Polymerase Chain Reaction (PCR) From Clinical Isolates

Mycobacteria are aerobic, nonspore forming, non-motile,single-cell bacteria.Of more than 40 currently recognized species of mycobacteria, Mycobacterium tuberculosis, the causative agent of human TB is the commonest pathogen for pulmonary and extra pulmonary tuberculosis cases. The other members of the Mycobacterium tuberculosis complex (MTC) or the nontubercular mycobacterium (NTM) produces similar diseases which cannot be differentiated from tuberculosis by clinical symptoms and signs. But this differentiation is important as the chemotherapy varies widely according to the strain of mycobacterium. The burden of morbidity and mortality of tuberculosis is rapidly growing worldwide, particularly with the HIV/AIDS epidemic. The strain identification of Mycobacterium remains a cumbersome, labor intensive and expensive procedure, which requires 3 to 12 weeks of time. The conventional methods of strain identification lack proper standardization and precise diagnosis. The prime objective of this study is to overcome these problems

Solid lipid nanoparticles of irbesartan: preparation, characterization, optimization and pharmacokinetic studies

Irbesartan is an antihypertensive with limited bioavailability and solid lipid nanoparticles (SLN) is one of the approaches to improve bioavailability. Solid lipid nanoparticles were prepared using glyceryl monostearate by solvent emulsification method followed by probe sonication. Irbesartan loaded SLNs were characterized and optimized by parameters like particle size, zeta potential, surface morphology entrapment efficiency and in vitro release. The optimized formulation was then further evaluated for the pharmacokinetic studies in Wistar rats. Irbesartan-loaded SLN of particle size 523.7 nm and 73.8% entrapment efficiency showed good bioavailability in Wistar rats and also showed optimum stability in the studies. The SLN prepared using glyceryl monostearate by solvent emulsification method leads to improve bioavailability of the drug

Evaluation of possibility to increasing sustainability of high-rise buildings through use university intellectual property

In this article explained approach of valuation of intellectual property of Voronezh State Technical University, as her usefulness to increasing the sustainability and ecological safety of high-rise building. High-rise building is main type of buildings in modern cities. They include large volume of material mass, high volume of energy using and high volume of emissions. Using innovation solutions to improving ecology safety of high-rise buildings has large potential to city in whole. Explained in the article methods of calculation of effects helps to value sustainable solutions of present and future generations. Thus usefulness of patents express through usefulness regarding to high-rise building, including for sustainable development

Riverbank Filtration: A Sustainable Process to Attenuate Contaminants during Drinking Water Production

Riverbank filtration leads to purification of water. For India it can be a simple, economical and effective alternative. A few unanswered questions were: Can it work in Indian mountainous regions? Will it be of any advantage in the case of some of the polluted Indian surface waters? With the goal to evaluate use of riverbank filtration as a sustainable technology under widely varying conditions prevalent in India, the effectiveness of riverbank filtration has been examined over the last 10 years. In the case of cleaner surface waters, the wells deliver water free of turbidity and coliform even during monsoon irrespective of well configuration. In the case of polluted source waters, it results in an overall advantage in terms of improved raw water quality, reduced degree and cost of subsequent treatment and decreased levels of disinfection by-products. The study shows riverbank filtration to be an effective and sustainable option for plains as well as the mountainous region

Study on relationship between serum electrolytes and pulmonary function tests in patients with chronic obstructive pulmonary disease in a tertiary care hospital, Kolkata

Background: Electrolyte imbalances during acute exacerbations of chronic obstructive pulmonary disease (AECOPD) can prolong hospitalization and influence disease outcomes. Aims and Objectives: The current study was conducted to determine the relationship between electrolyte levels and pulmonary function tests in patients with COPD. Materials and Methods: In this case–control study, a total of 140 patients were selected; among which 70 COPD patients were selected under case groups and 70 otherwise healthy participants were considered as controls. COPD patients were classified into 3 groups, mild, moderate, and severe as per Global Initiative for Chronic Obstructive Lung Disease criteria. The participants were assessed for pulmonary function tests and serum sodium, potassium, magnesium, calcium, and phosphate. Results: The mean serum sodium, potassium, and calcium levels were significantly lower (P<0.001) in patients with severe COPD as compared to mild-to-moderate COPD patients. Serum phosphate and magnesium concentrations were comparable in both groups. Hyponatremia (<135 mEQ/L) was the most common dyselectrolytemia. Serum sodium (r−0.671, P<0.001), potassium (r−0.489, P<0.001), and calcium (r−0.311, P=0.009) concentrations were shown to be significantly decreased in COPD cases and positively correlated with the percent forced expiratory volume in one second/forced vital capacity ratio. Conclusion: AECOPD patients with various electrolyte imbalances such as hyponatremia and hypokalemia require detailed treatment since they are at higher risk for complications