bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluating Shielding Materials for High Energy Space Radiation
Authors: Gohel Ankit , Makwana Rajnikant , Soni Bhargav 
Published: April 2022

Abstract
Space radiation is very hazardously harmful to human health and physically damaging to electronics equipment. The major radiation sources are Solar Particle Events (SPE) and Galactic Cosmic Rays/Radiation (GCR). GCR composed of high energy protons, alpha particles and electrons travelling from outside solar system are especially difficult to shield. Previous study has been shown that aluminum and higher atomic number structural alloys, provide fairly little shielding which may increase secondary radiation. In this work, we evaluate the range of materials for GCR shielding. Materials are aluminum, for its low atomic number, Liquid Hydrogen, Polyethylene,Water, Polybenzoxazine, Lithium hydride, Liquid Methane and Hydrogenated Graphite Nano fiber (HGNF) materials which containing high proportions of hydrogen which effectively slowing secondary neutrons and GCR radiation. Boron nitride storing hydrogen absorbs the secondary neutrons, GCR, and SPE effectively. Liquid Methane performance is also noticeable. The dose equivalent for each shielding materials are calculated using On-line Tool for the Assessment of Radiation In Space (OLTARIS) and High Charge and Energy TRaNsport (HZETRN) and compared for 2010 Solar minimum GCR. The results show that Liquid hydrogen is the good space radiation shielding material for a given thickness, followed by Lithium Hydride, Liquid Methane, Boron nitride storing hydrogen, Polyethylene, Polybenzoxazine, HGNF, and then aluminum. In addition, we plotted dose equivalent for Liquid hydrogen and Polyethylene at different densities.
Effect of the hole concentration on the polaronic mobility for the strongly interacting electrons
Authors: Debnath Debika , Chatterjee Ashok 
Published: April 2022

Abstract
The effective hopping of the polaron has been studied for different hole concentrations. Holstein-Hubbard model is used for the half-filled and less than half-filled cases. A series of canonical transformations are imposed on the generic Hamiltonian and considering the strongly interacting electrons, the transformed Hamiltonian has been reconstructed to an effective t-J model. Using the mean-filled Hartree-Fock approximation the electronic Hamiltonian has been solved with the Zuberev’s Green function technique. The effective polaronic transport is found to be strongly dependent on the electron and hole concentration of the system.
Magnetic and magneto caloric properties of melt-spun rare earth intermetallic compound DyAl2
Authors: Prusty Mitali Madhusmita , Arout Chelvane J. , Morozkin A. V. , Nirmala R. 
Published: April 2022

Abstract
Laves phase rare earth intermetallic compound DyAl2 has been prepared by melt-spinning under argon atmosphere. The melt-spun DyAl2 sample is crystalline (cubic structure, space group Fd-3m) and is nanostructured. The crystallite size of melt-spun DyAl2 calculated from the room temperature powder X-ray diffraction data is about 23 nm. Transmission electron microscopy image reveals particles of average size, 14 nm. The melt-spun DyAl2 undergoes a paramagnetic to ferromagnetic transition at ∼29 K (TC). This value is about 32 K lower than the ferromagnetic transition temperature of DyAl2 sample prepared by conventional arc-melting technique. Magnetization of the melt-spun DyAl2 does not saturate at 2 K in field of 70 kOe. Magnetic entropy change near TC has been calculated using the field dependent magnetization data. The maximum value of isothermal magnetic entropy change (ΔSm) of melt-spun DyAl2 is ∼ -10.5 Jkg−1K-1 at 30 K for a field change of 70 kOe. The ΔSmvalue is as large as -24 Jkg−1K-1 at 63 K for the arc-melted DyAl2 compound for the same field change. The formation of nanograins upon melt-spinning has led to the reduction of TC as well as the magnetocaloric effect around TC.
The green and chemical synthesis, and characterization of ZnO nanoparticles by aqueous leaf extract of aloe vera
Authors: Kavya Prakash K M , Vinodkumar T , Prakash V 
Published: April 2022

Abstract
The exact physical and chemical properties of nanoparticles depend on the way in which they are synthesized. The common techniques are hypothermal methods, electrochemical deposition, sol-gel method, chemical vapour deposition, co-precipitation method etc. In the present study, zinc oxide nanoparticles have been synthesized by botanical extract and chemical reducing agents with major objective to compare the nature and average particle size of the nanoparticles synthesized by these two methods. An attempt is also made to understand the influence of molarity on the chemically synthesized NPs by varying the molar concentration of precursor. The structure and morphology of synthesized NPs have been studied using X-ray diffraction (XRD) technique. For chemically synthesized NPs the major peak was observed at 36.147 for both the precursor at 0.2M and 0.3M. The average crystalline size was found to be 13.09 nm and 11.09 nm for precursor at 0.2M and 0.3M respectively. The major peak for green method was observed at 36.147 with an average crystalline size of 9.2 nm. The study clearly indicates that, green method is particularly suitable for the synthesis of smaller sized NPs.In chemical method, the molarity of the precursor influences the particle size, as the molarity decreases particle size also decreases.
Photophysical Properties of Rhodamine Dyes in Aqueous Organic Solvents: Evaluation of Ground and Excited State Dipole moments
Authors: Pujari Vikram , Patil Mallikarjun K. , Tilakraj T.S. , Bhat Vighneshwar S. , Inamdar Sanjeev R. 
Published: April 2022

Abstract
In this present work, we have determined the ground and excited state dipole moments of two Rhodamine dyes with similar molecular skeleton and having different functional groups, namely Rhodamine 560 chloride (R560) and Rhodamine 610 Chloride (R610). Absorption and emission spectra of R560 and R610 were recorded in binary mixtures of DMSO-Water and 2 Propanol-Water at varying compositions. The two probes exhibit hypochromic / bathochromic shift in absorption and fluorescence spectra for different compositions of aqueous organic solvents. This shift arises mainly because of polarity of the solvent. By employing solvatochromic shift method we have determined the ground and excited state dipole moments. The experimentally obtained results suggest that the excited state dipole moments of two probes are much higher than their ground state dipole moments.
Dielectric And Relaxation Studies in Multi Oxides Doped Borotellurite Glasses
Authors: Malge Amarkumar , Sankarappa T. , Devidas G.B. , Ashwajeet J.S. , Devidas Ashwini , Heerasingh Mohansingh 
Published: April 2022

Abstract
Melt quenching technique has been adopted to synthesize a set of borotellurite glasses consisting of ZnO, Li2O, WO3 and Dy2O3, with a varied content of WO3. After confirming their amorphous nature by XRD, they were investigated for dielectric properties over a wide range of freqency and temperature. Observed variations in dielectric parameters with frequency, temperarure and composition suggests the presence of mobility of charge carriers, increase of loss due to ionic migration and involvement of dc conductivity. Single phase and conducting nature of the samples have been obtained by sketching cole-cole plots. DC conductivity estimated from impedance spectra indicated semiconducting nature and its activation energy increased with increase of WO3 concentration. Dielectric relaxation time and its thermal activation energy were determined independently from modulus and impedance and found that the former decreased with increase of temperature and the later increased with WO3 content. Master curves drawn for electric moduli revealed that relaxation mechanism in these glasses is temperature independent.
Study of stagnation layer of laterally colliding laser produced aluminium plasmas
Authors: S. Shilpa , Gopinath Pramod 
Published: April 2022

Abstract
When two dense laser produced plasmas collide, a layer of plasma stagnates at the collision front exhibiting special properties, is called stagnation layer. The characteristics of stagnation layer formed due to the collision of two laser produced aluminium plasmas were studied using spectroscopic and the fast imaging techniques. Time gated Intensified Charge Coupled Device (ICCD) imaging was used to study the temporal evolution of stagnation region and time resolved spectroscopy was used to obtain information about the distribution of neutral as well as the ionic species in collision process of laterally colliding aluminum plasmas. Electron density and temperature of the stagnation layer were also calculated from the emission spectra. The overall experiment results clearly depict the peculiar properties of stagnation layer which is more advantageous than the conventional laser produced plasma.
Pharmacological screening of heartwood of Tectona grandis Linn.for antibacterial activity by Agar-Well Diffusion method
Authors: Singh R 
Published: April 2022

Abstract
Medicinal plants has always been a subject of interest for human being from ancient times due to health benefits. Researchers found that, people in different regions of the world used the same or similar plants for health benefits. Medicinal plant research includes many fields like drug discovery, ethnobotany, traditional and indigenous medicines. During corona pandemic we realised that there are no effective therapies available for new and remerging infectious diseases. Public health badly affected due to drug resistant microorganism and appearance of new disease causing microbes. Due to increasing side effects of synthetic drugs and uncontrolled infectious diseases researchers have taken interest in natural sources of medicines and have screened a large number of plants for new bioactive compounds. Natural products have been a well-known source of various molecules in the process of drug discovery and many bioactive natural product derivatives. Stereo chemical and structural properties of natural products are characteristics which are responsible for exploring novel molecular diversity. One of the successful strategies for the investigation of new medicinal agents from plants includes screening of plant extract, fractions followed by the purification of the constituents. Several plants and their products have been evaluated for their antimicrobial and antioxidant activity. In present study, the ethanolic extract of the heartwood of Tectona grandis Linn. was screened for antibacterial activity.
The effect of co-dopants (Cu3+, Sm3+-ions) on the optical properties of Sodium-Zinc-Borate glasses
Authors: Hemalatha S. , Nagaraja M. , A. Madhu , K Vinayak Pattar , Suresh K. , N Srinatha 
Published: April 2022

Abstract
In this article, we describe the synthesis and optical characteristics of (Cu2+, Sm3+-ions) doped sodium zinc borate glasses made using the conventional melt quenching technique. The produced glasses were investigated using XRD, UV-Visible-NIR, and Photoluminescence spectroscopy. XRD analysis reveals the amorphous nature of produced glass samples. The presence of both Cu2+ and Sm3+ ions may be seen in UV-Visible-NIR absorption spectra in the 200-2000 nm range. Refractive index, density, and energy band gaps were all examined as physical and optical variables.In addition, photoluminescence emission spectra for two excitation wavelengths, 290 nm and 400 nm, were obtained to confirm Cu2+ and Sm3+-ions-induced photoluminescence in sodium zinc borate glasses, respectively. When using a 290 nm excitation, the spectra exhibited one wide emission peak about 460 nm, however when using a 400 nm excitation, the spectra revealed three separate peaks in the visible region.The spectral properties of all of the samples were identical. The drop in PL intensity with Sm3+ concentration might be attributed to energy transfer between copper and samarium ions with 400 nm excitation. Surprisingly, the glass sample with 1 mol% Sm3+ exhibits the highest visible PL intensity / emission. The investigation’s findings show that the produced samples are viable candidates for photonic and LED applications.
Impact of electron-phonon interactions on Wigner crystallization in an electron quantum wire
Authors: Puttar Devi , Verma Vishal , Garg Vinayak , Moudgil R. K. 
Published: April 2022

Abstract
In this paper, we explore the impact of electron-phonon (e-ph) coupling on the Wigner crystallization occurring due to strong electron-electron (e-e) interactions in a semiconductor-based electron quantum wire. The e-ph coupling is represented by the Fröhlich interaction potential and electron correlations are included within the dynamic version of self-consistent mean-field approximation of Hasegawa and Shimizu. Numerical results are reported for the static structure factor and pair-correlation function for fixed wire width and some selected values of electron number density parameter rs
. A strong peak in the static structure factor and pronounced periodic oscillations in pair-correlation function indicate the formation of Wigner crystal in the quantum wire at a critical electron number density rs
c
. We find that the inclusion of e-ph interactions in addition to the usual e-e interactions significantly enhance rs
c
, at a fixed wire width.
Influence of lanthanum doping on the structural and optical properties of cerium tungstate nanocrystals
Authors: Jose Anjaly , H Hitha , Kuriakose Soumya , John Mathew , varghese Thomas 
Published: April 2022

Abstract
In this study, the effect of lanthanum (La) doping on the structural and optical properties of cerium tungstate nanocrystals synthesized by the chemical precipitation method is investigated. The X-ray diffraction studies confirmed the crystalline phase formation and observed no phase change with doping. It is interesting to note that the crystallite size is decreased with La doping. The characteristic vibrational peaks of W-O bonds are confirmed from the FTIR and Raman spectroscopic studies and found no appreciable changes in the spectral positions with doping. The optical properties are studied using UV-Vis spectroscopy and photoluminescence spectroscopy. The characteristic broad blue PL emission from the tetrahedral tungstate group is observed for the pure and doped samples, and the appreciable variation in PL intensity can be associated with the formation of defects that occurred while doping.
Highly Efficient Degradation of Organic Compounds via β-Bi2O3Semiconductor Under Visible Illumination
Authors: Alkanad Khaled , Ali Othman , G. C. Sujay Shekar , Hezam Abdo , Abdullah Bajiri Mohammed , N. K. Lokanath 
Published: April 2022

Abstract
β-Bi2O3semiconductor nanoparticles synthesized by solution combustion method. The as-synthesized sample was systematically characterized by several techniques, including PXRD, DLS, Raman spectrometry, SEM, and DRS-UV-vis spectroscopy. PXRD and Raman analyses confirmed high crystallinity and phase purity of the prepared β-Bi2O3. SEM and DLS showed the morphology and the agglomeration of β-Bi2O3nanoparticles.DRS-UV-Vis showed the enhanced visible light absorption toward the visible light range with bandgap 2.43 eV. Significantly, β-Bi2O3 nanoparticles demonstrated outstanding visible-light photocatalytic properties, revealed enhanced methylene blue (MB) dye degradation. 91% of the dye content was degraded by 30 minutes under 50W visible LED light irradiation, which could be attributed to enhanced visible light absorption and the smaller size of the synthesized nanoparticles.
Structure assigned optical transitions from single walled carbon nanotube based high absorber composite thin film coatings
Authors: Saini Sonia , Reshmi S , Gouda Girish M , Bhattacharjee Kuntala 
Published: April 2022

Abstract
Single walled carbon nanotubes (SWCNTs) exhibit unique electronic and optical properties owing to their one-dimensional (1D) structures that are described by a set of chiral indices (n, m), diameter (d) and chiral angle (θ). Absorption and optical spectroscopies are powerful techniques to determine the structure and diameter distribution of the SWCNTs through bulk measurements. In this work, we correlate structure assigned absorption features with the corresponding optical transitions observed from the SWCNT based high absorber composite thin film coatings. Various optical signatures demonstrated here are direct manifestation of electronic transitions happening within the sharp van Hove (vH) states of valence band, v2
to conduction band, c2
from SWCNTs of particular chiral indices and diameter. These transitions arising within the vH singularities due to unique 1D structures of SWCNTs, correspond to the energy band E22. The presentwork based on empirical calculations according to tight binding model (TB) approximation, represents unique way of correlating structure assigned absorption features with the optical transitions that can have direct impact in tuning the bandgap of SWCNTs of specific diameter and chirality for nanoelectronics and nanophotonic applications.
Study of dry wear behavior of Novel ferrous samples prepared by powder metallurgy method
Authors: Singh Baljeet , Grewal Jasmaninder Singh 
Published: April 2022

Abstract
The sliding wear behavior of newly developed ferrous powder metallurgy samples was investigated under dry sliding conditions. Wear tests were conducted by varying the normal loads of 30 N, 40 N, and 50 N at a constant velocity of 1 m s−1 and then at a constant load of 30 N by varying the sliding velocities by 0.5 m s−1, 1 m s−1, and 2 m s−1 at room temperature. Furthermore, the variations in the wear rate and coefficient of friction at a constant sliding distance of 5400 m were studied at different normal loads keeping sliding velocity constant at 1 m s−1 as well as at different sliding velocities and maintaining normal load at 30 N. The wear characteristics were evaluated using weight loss measurements. The mechanism of wear was observed using a scanning electron microscope and compositional analysis using energy-dispersive X-ray spectroscopy (EDX). It was found that increased normal load had a dominant effect on the wear loss in comparison to increased sliding speed during the tribological testing of the powder metallurgy samples.
Atomic precision manufacturing of carbon nanotube—a perspective
Authors: Xiang Rong 
Published: April 2022

Abstract
Carbon nanotube (CNT), particularly single-walled CNT, possesses exceptional properties, and can be utilized in many high-end applications including high-performance electronics. However, the atomic arrangement of a CNT determines its band structure, making the atomic-precision fabrication one of most important topics for the development of this material. In this perspective, the author gives a personal summary on the history, current status of the atomic-precision fabrication of CNT and outlines the remaining challenges as well as the possible paths that may lead the production of atomically precise CNTs from ‘fabrication’ to ‘manufacturing’.
Development of an innovative partnership between a health-system department of pharmacy and external community pharmacies
Authors: Vest Mary-Haston , Weber Tim , Savage Scott , Lovince Judith , McKnight Lauren , Zachary Debbie , Rush Jordan 
Published: April 2022

Abstract

Purpose
Our organization implemented a health-system pharmacy/community pharmacy transitions of care (TOC) program, developing a scalable model to improve care transitions from the health system to the community setting for shared patients.

Summary
In this report, we describe our organization’s experiences in taking a purposeful approach to building and pilot testing a partnership between our department of pharmacy and 14 community pharmacies within a larger statewide network to improve TOC across care settings. We have been successful in partnering with our electronic health record (EHR) vendor to enhance access capabilities to allow for documentation by community pharmacists (external to the organization) to be included in the patient record as a note. The goal of the partnership with community pharmacies is to elevate TOC for patients, identify and resolve medication therapy problems that may occur post discharge and lead to poor outcomes, and improve continuity of care across practice settings.

Conclusion
Our department of pharmacy has led a successful initiative to promote collaboration with local external community pharmacies. This program has led to innovative advancements in EHR capabilities, promoting transparency in the documentation of pharmacy services and making this documentation visible to all care team members.
Biallelic ADAM22 pathogenic variants cause progressive encephalopathy and infantile-onset refractory epilepsy
Authors: van der Knoop Marieke M , Maroofian Reza , Fukata Yuko , van Ierland Yvette , Karimiani Ehsan G , Lehesjoki Anna Elina , Muona Mikko , Paetau Anders , Miyazaki Yuri , Hirano Yoko , Selim Laila , de França Marina , Fock Rodrigo Ambrosio , Beetz Christian , Ruivenkamp Claudia A L , Eaton Alison J , Morneau-Jacob Francois D , Sagi-Dain Lena , Shemer-Meiri Lilach , Peleg Amir , Haddad-Halloun Jumana , Kamphuis Daan J , Peeters-Scholte Cacha M P C D , Kurul Semra Hiz , Horvath Rita , Lochmüller Hanns , Murphy David , Waldmüller Stephan , Spranger Stephanie , Overberg David , Muir Alison M , Rad Aboulfazl , Vona Barbara , Abdulwahad Firdous , Maddirevula Sateesh , Povolotskaya Inna S , Voinova Victoria Y , Gowda Vykuntaraju K , Srinivasan Varunvenkat M , Alkuraya Fowzan S , Mefford Heather C , Alfadhel Majid , Haack Tobias B , Striano Pasquale , Severino Mariasavina , Fukata Masaki , Hilhorst-Hofstee Yvonne , Houlden Henry 
Published: April 2022

Abstract
Pathogenic variants in A Disintegrin And Metalloproteinase (ADAM) 22, the postsynaptic cell membrane receptor for the glycoprotein leucine-rich repeat glioma-inactivated protein 1 (LGI1), have been recently associated with recessive developmental and epileptic encephalopathy. However, so far, only two affected individuals have been described and many features of this disorder are unknown.
We refine the phenotype and report 19 additional individuals harbouring compound heterozygous or homozygous inactivating ADAM22 variants, of whom 18 had clinical data available. Additionally, we provide follow-up data from two previously reported cases. All affected individuals exhibited infantile-onset, treatment-resistant epilepsy. Additional clinical features included moderate to profound global developmental delay/intellectual disability (20/20), hypotonia (12/20) and delayed motor development (19/20). Brain MRI findings included cerebral atrophy (13/20), supported by post-mortem histological examination in patient-derived brain tissue, cerebellar vermis atrophy (5/20), and callosal hypoplasia (4/20). Functional studies in transfected cell lines confirmed the deleteriousness of all identified variants and indicated at least three distinct pathological mechanisms: (i) defective cell membrane expression; (ii) impaired LGI1-binding; and/or (iii) impaired interaction with the postsynaptic density protein PSD-95.
We reveal novel clinical and molecular hallmarks of ADAM22 deficiency and provide knowledge that might inform clinical management and early diagnostics.