Data from: Occurrence of spintronics behaviour (half-metallicity, spin gapless semiconductor and bipolar magnetic semiconductor) depending on the location of oxygen vacancies in BiFe 0.83 Ni 0.17 O 3

The current communication signifies the effect of oxygen vacancies (OVs) both qualitatively and quantitatively in multiferroic BiFe0.83Ni0.17O3 by an in-depth atomic-level investigation of its electronic structure and magnetization properties, and these materials have a variety of applications in spintronics, optoelectronics, sensors and solar energy devices. Depending on the precise location of OVs, all the three types of spintronic material namely half-metallic, spin gapless semiconductor and bipolar magnetic conductor have been established in a single material for the first time and both super-exchange and double-exchange interactions are possible in accordance with the precise location of OVs. We have also calculated the vacancy formation energies to predict their thermodynamic stabilities. These results can highlight the impact and importance of OVs that can alter the multiferroic properties of materials

A study on parental awareness about feeding practices in children between the age group of 12 to 24 months

INTRODUCTION: Nutrition plays an integral part in growth and development of a child. Age-appropriate feeding is known to improve the child’s well-being and reduce the risk of specific diseases. The present study aimed to assess the awareness of parents regarding breastfeeding and complementary feeding practices. METHODOLOGY: This health-based prospective observational study was conducted in a tertiary care hospital enrolling 95 parents with children in the age group 1-2 years. The data was analyzed using SPSS version 26 and Microsoft excel. RESULTS: In the present study, the prevalence of exclusive breastfeeding was 73.68 %. Eighty-six (90.53 %) parents initiated complementary feeds at 6 months. However, only 45.26 % of children were consuming adequate quantity of complementary foods. The association of child’s calorie consumption with maternal age and occupation was found to be statistically significant. CONCLUSION: Adequate nutrition during childhood and infancy is a key factor influencing growth and development. Globally, poor nutrition has always been one of the salient causes of under 5 mortalities. Appropriate breastfeeding and complementary feeding practices are essential to reduce the incidence of malnutrition worldwide

Fig.2 Total density of states-Raw data

Total density of states data is given in the attached file. These were plotting Fig.2

input file coordinates of the perfect hexagonal cell BiFe0.83Ni0.17O3

The input file coordinates of hexagonal cell of BiFe0.83Ni0.17O3 are given in the data file. Oxygen atoms were removed from this structure to create oxygen vacancies

A terahertz Brewster switch based on superconductor hyperbolic metamaterial

Active polarization switching devices are important to control the polarization state of light including terahertz (THz) waves that are technologically challenging to manipulate. Here, we propose and numerically demonstrate a hyperbolic metamaterial-based (HMM-based) active Brewster polarization switch for the intensity and phase modulation of THz light. The proposed multilayered HMM consists of alternating thin layers of high temperature superconductors such as yttrium barium copper oxide and dielectric materials such as lanthanum aluminate. The HMM shows elliptical dispersion above the superconducting phase transition temperature and type II hyperbolic dispersion in the superconducting state. By varying the temperature from the dielectric to the superconducting phase of the HMM, we demonstrate above 98% THz intensity modulation and 100% phase tunability (180°) at Brewster’s angle. The proposed HMM can work as an efficient reflective THz modulator by properly selecting the angle of incidence.Ministry of Education (MOE)Published versionThe authors acknowledge the Singapore Ministry of Education (MOE) under Grant Nos. AcRF Tier 1 RG191/17, MOE2017-T2-1-110 and MOE2016-T3-1-006(S) for funding this research. Also, the authors acknowledge DST-SERB under the scheme of AISTDF (Grant No. IMRC/AISTDF/R&D/P-15/2018) toward partial support for conducting the work. The authors thank Dr. Yogesh Kumar Srivastava from SPMS, NTU, for proving the optical constants of YBCO and LAO thin films. R.J. and R.S. acknowledge the SPARC program of MHRD, India, for this joint work

Acute Bacterial Meningitis in an infant- A rare cause

We report a case of Salmonella paratyphi B meningitis in a 90 day-old male infant who was admitted with complaints of fever, vomiting and one episode of vacant stare. Clinically, the infant was found to be toxic and dull with a bulging anterior fontanelle. Subsequently, blood and cerebrospinal fluid cultures demonstrated the presence of Salmonella Paratyphi B organism

Pediatric hematological malignancy: Identification of issues involved in the road to diagnosis

Introduction: Childhood malignancy, although a rare phenomenon, is still the leading cause of mortality in the pediatric population. Early diagnosis and treatment are imperative for the achievement of optimal prognosis. The study of factors facilitating the delay in diagnosis is thus of utmost importance, to both shorten the diagnostic delay and allow for early therapeutic intervention, facilitating a higher prognosis. Objective: To assess the referral pattern and the identification of potential delays in the diagnosis of childhood malignancy in a developing country. Methodology: The study was conducted in the Pediatric Hematology and Oncology department of Sri Ramachandra University, Chennai, India. The study included randomly selected 70 pediatric patients diagnosed with a hematological malignancy, from July 2012-August 2013. The parents were interviewed using a prepared questionnaire about patient symptomatology, interaction with healthcare providers, final diagnosis, and referral details. Data were statistically analyzed using Statistica® (STATsoft). Results: 70 patients were included in the study (69% boys, 31% girls). The diagnostic delay was primarily due to the delay experienced in the healthcare system, with a mean delay of 26 days (Median: 18; Range: 5-39). Those from a lower socioeconomic background and whom opted for a non-allopathic treatment approach experienced higher diagnostic delays. Diagnostic time was significantly shorter for those who visited a pediatrician versus the patients who visited a general physician or super specialties (P = 0.043). Conclusions: Diagnostic delay is often associated with an extensive disease presentation, an aggressive therapeutic approach, and has a negative impact on patient prognosis. To lower mortality rate and facilitate a favourable prognosis, diagnosis requires a high degree of clinical suspicion and immediate intervention