Solvothermal synthesis of CdS nanorods: role of basic experimental parameters

CdS nanorods with varying dimensions were synthesized by solvothermal process. It was observed that the anions present with the Cd-salts play an important role in determining the dimensions of the CdS nanorods. The crystalline nature of the sources was found to play a crucial role in determining the phase of the products. The nature of the sulfur source, molar ratio of the precursors, filling fraction of the solvent, and the synthesis temperature play important role in defining the size and shape of the products. By controlling the experimental parameters it was possible to control the dimension of the CdS nanorods within a certain range (diameter of the nanorods could be varied within a wide range from approximately 7 to 100 nm by varying the temperature within 100-250 degrees C). Optical absorption, photoluminescence, and Raman studies of these samples were carried out to characterize the CdS nanorods.     

Biogenic gold nanoparticles as fotillas to fire berberine hydrochloride using folic acid as molecular road map

Use of biologically modified gold nanoparticles (GNPs) as molecular vehicle to ferry potential anti-cancer drug berberine hydrochloride (BHC) using folic acid (FA) as targeting molecule is reported in this work. A tropical fruit peel, Trapa bispinosa is used to fabricate highly monodispersed GNPs, passivated with essential functional groups which were used as linkers to attach FA and BHC via amide linkage. Flocculation Parameter (FP) of biologically synthesized GNPs was calculated under different salt concentrations which were found to be very ideal under a physiological condition. Various statistical models were used to find drug release profile out of which Higuchi was found to be the most ideal. GNP–FA–BHC complexes were found to be active against folic acid expressing HeLa cells.     

Novel coronavirus (COVID-19) diagnosis using computer vision and artificial intelligence techniques: a review

Multimedia Tools and Applications - The universal transmission of pandemic COVID-19 (Coronavirus) causes an immediate need to commit in the fight across the whole human population. The emergencies...     

A promising parenting intervention in foster care.

The purpose of this study was to evaluate the effectiveness of a 2-component intervention for biological and foster parent (pairs) to improve parenting practices, co-parenting, and child externalizing problems. Participants were biological and foster parents (N = 128) of primarily neglected children (ages 3 to 10 years) placed in regular foster homes. Biological and foster parents were randomly assigned in pairs to the intervention (n = 80) or a usual care (n = 48) condition. Intervention families received a 12-week parenting course (Incredible Years) and a newly developed co-parenting component. Key findings included significant gains in positive parenting and collaborative co-parenting for both biological and foster parents at the end of the intervention. At follow-up, intervention parents sustained greater improvement in positive parenting, showed gains in clear expectations, and reported a trend for fewer child externalizing problems. Findings supported the feasibility of offering joint parenting training to meet the needs of participating families and demonstrated that the co-parenting construct applied to families in the foster care system was amenable to intervention. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Rapid prototyping assisted fabrication of patient specific β-tricalciumphosphate scaffolds for bone tissue regeneration

Beta Tri calcium phosphate scaffolds were produced by inverse casting methodology using rapid prototyping technology. Β-TCP scaffold sintered at different temperatures were analyzed by using Scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, uniaxial compression test and cytotoxicity test. Results incorporate scaffold pore size, bonding, phase chance, porosity, mechanical strength, and cytotoxic profile with an increase in the sintering temperatures. Together, these properties are required for scaffold fabrication in the field of bone tissue regeneration.     

Machine learning-based automatic detection of novel coronavirus (COVID-19) disease

Multimedia Tools and Applications - Abstract The pandemic was announced by the world health organization coronavirus (COVID-19) universal health dilemma. Any scientific appliance which contributes...     

University of Miami/Jackson Memorial Medical Center restructures its health care system for the 21st century

Change, challenge, and commitment motivate staff at the University of Miami/Jackson Memorial Medical Center in Miami, Florida, to prepare its health care system for the 21st century. Doctors, nurses, environmental workers, pharmacists, cashiers, nursing assistants, laboratory technologists, and many others are participating on a variety of teams to bring about the changes needed for our delivery system to be competitive.     

Regularized autoregressive analysis of intravascular ultrasound backscatter: improvement in spatial accuracy of tissue maps

Autoregressive (AR) models are qualified for analysis of stochastic, short-time data, such as intravascular ultrasound (IVUS) backscatter. Regularization is required for AR analysis of short data lengths with an aim to increase spatial accuracy of predicted plaque composition and was achieved by determining suitable AR orders for short data records. Conventional methods of determining order were compared to the use of trend in the mean square error for determining order. Radio-frequency data from 101 fibrous, 56 fibro-lipidic, 50 calcified, and 70 lipid-core regions of interest (ROIs) were collected ex vivo from 51 human coronary arteries with 30 MHz unfocused IVUS transducers. Spectra were computed for AR model orders between 3-20 for data representing ROIs of two sizes (32 and 16 samples at 100 MHz sampling frequency) and were analyzed in the 17-42 MHz bandwidth. These spectra were characterized based on eight previously identified parameters. Statistical classification schemes were computed from 75% of the data and cross-validated with the remaining 25% using matched histology. The results determined the suitable AR order numbers for the two ROI sizes. Conventional methods of determining order did not perform well. Trend in the mean square error was identified as the most suitable factor for regularization of short record lengths.