bluuebunny/crossref_metadata_2025 huggingface dataset:
Language and culture wars
Authors: Erdocia Iker
Published: June 2022

The far right has launched its own particular crusade against gender-neutral language (GNL). In this article, I examine how the parties Rassemblement National, in France, and Vox, in Spain, instrumentalise discursively their opposition to GNL as part of their overall political strategy of confronting social change. By using a culture war framework, I critically analyse the connections between the polarised representations of language and those of other fronts of cultural conflict that the far right directs against adversary groups. I show that both political parties have co-opted language into the culture wars they pursue on other fronts, albeit with significant differences. I argue that in addition to the idea of a single overall struggle based on moral differences and cultural cleavages, culture wars are also to be understood as interconnected fronts in different spheres of contention that the far right strategically exploits.
Microstructure and mechanical properties of laser indirect brazed titanium/steel composite joint with a CuZn filler metal
Authors: Zeng Haoyuan , Yu Deshui , Zhang Yan , Zhou Jianping , Chen Yankun
Published: June 2022

In this study, the research on the laser welding TC4 alloy and stainless steel dissimilar metals with composite welding mechanism was investigated. Dissimilar joints of TC4 alloy and stainless steel were generated by indirect laser brazing. Moreover, in order to further explored the bonding mechanism of joints, CuZn metal was used as the filler material to study the welding process of TC4 alloy and 304 stainless steel with indirect laser brazing and transition section. The filler was extruded into metal droplets due to the metal expansion during laser welding, which increased the tightness of the joint. With the increase of heat input, the reaction between the filler and the base metals on both sides was more intense. In addition, the tensile strength reached 210 MPa (41% of stainless steel) when the laser power was 624 W.
Commentary Article: Strategic Planning for Addiction Programs within Academic Medical Centers: Examples from the Yale Program in Addiction Medicine
Authors: Biegacki Emma T. , Tetrault Jeanette M. , Fiellin David A.
Published: June 2022

Background Addiction programs at academic medical centers must navigate complex, multidisciplinary environments as they work to advance the field and improve substance use treatment access and outcomes. Programs can employ strategic planning processes to identify goals and strategies for success. Methods: The Yale Program in Addiction Medicine began a series of strategic planning activities in February 2020 with the primary aims of (1) conducting a point-in-time needs assessment for the Program and (2) identifying goals for Program improvement and expansion. Drawing upon a Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis framework and the Delphi method for group decision-making, these strategic planning activities were implemented in four steps involving multimodal engagement and iterative feedback amongst Program faculty and selected stakeholders. Results: Primary deliverables included four overarching programmatic goals, associated action items, strategies for success, a proposed implementation timeline, and a revised Mission, Vision, and Values statement for the Program. Conclusion: Methodologic considerations and environmental factors offer insight into the strengths, limitations, and adaptive potential of this approach as well as others described in the literature. Key outputs highlight the benefits and timeliness of strategic planning for addiction programs, as heightened interest and investment in substance use treatment, prevention, and harm reduction paves the way for opportunity and innovation.
Need for Clarity and Context in Case Reports on Kratom Use, Assessment, and Intervention
Authors: Smith Kirsten E. , Dunn Kelly E. , Epstein David H. , Feldman Jeffrey D. , Garcia-Romeu Albert , Grundmann Oliver , Henningfield Jack E. , McCurdy Christopher R. , Rogers Jeffrey M. , Schriefer Destiny , Singh Darshan , Weiss Stephanie T.
Published: June 2022

This Letter to the Editor is a response to Broyan and colleagues who recently published a Case Report presenting data on 28 patients in the United States who identified kratom as their primary substance of use and who were subsequently induced on buprenorphine/naloxone for a reported diagnosis of kratom use disorder. We applaud the authors for helping to advance the science on kratom and recognize the difficulties in conducting kratom-related clinical assessment and research. However, a number of inconsistences and generalizations were identified in this Case Report, which also lacked some critical context. Importantly, such inconsistencies and generalizations can be observed throughout kratom-specific case reports. We feel this is now an important opportunity to highlight these issues that are present in the Broyan and colleagues Case report but emphasize that they are not unique to it. We do this with the hope that by acknowledging these issues it can help inform editors, clinicians, and researchers who may not be familiar with kratom and, as a result of this unfamiliarity, may inadvertently present findings in a manner that could confuse readers and even misinform clinical researchers and practitioners.
ER-lysosome lipid transfer protein VPS13C/PARK23 prevents aberrant mtDNA-dependent STING signaling
Authors: Hancock-Cerutti William , Wu Zheng , Xu Peng , Yadavalli Narayana , Leonzino Marianna , Tharkeshwar Arun Kumar , Ferguson Shawn M. , Shadel Gerald S. , De Camilli Pietro
Published: June 2022

Mutations in VPS13C cause early-onset, autosomal recessive Parkinson’s disease (PD). We have established that VPS13C encodes a lipid transfer protein localized to contact sites between the ER and late endosomes/lysosomes. In the current study, we demonstrate that depleting VPS13C in HeLa cells causes an accumulation of lysosomes with an altered lipid profile, including an accumulation of di-22:6-BMP, a biomarker of the PD-associated leucine-rich repeat kinase 2 (LRRK2) G2019S mutation. In addition, the DNA-sensing cGAS-STING pathway, which was recently implicated in PD pathogenesis, is activated in these cells. This activation results from a combination of elevated mitochondrial DNA in the cytosol and a defect in the degradation of activated STING, a lysosome-dependent process. These results suggest a link between ER-lysosome lipid transfer and innate immune activation in a model human cell line and place VPS13C in pathways relevant to PD pathogenesis.
Inherited TNFSF9 deficiency causes broad Epstein–Barr virus infection with EBV+ smooth muscle tumors
Authors: Fournier Benjamin , Hoshino Akihiro , Bruneau Julie , Bachelet Camille , Fusaro Mathieu , Klifa Roman , Lévy Romain , Lenoir Christelle , Soudais Claire , Picard Capucine , Blanche Stéphane , Castelle Martin , Moshous Despina , Molina Thierry , Defachelles Anne-Sophie , Neven Bénédicte , Latour Sylvain
Published: June 2022

Epstein–Barr virus (EBV) can infect smooth muscle cells causing smooth muscle tumors (SMTs) or leiomyoma. Here, we report a patient with a heterozygous 22q11.2 deletion/DiGeorge syndrome who developed a unique, broad, and lethal susceptibility to EBV characterized by EBV-infected T and B cells and disseminated EBV+SMT. The patient also harbored a homozygous missense mutation (p.V140G) in TNFSF9 coding for CD137L/4-1BBL, the ligand of the T cell co-stimulatory molecule CD137/4-1BB, whose deficiency predisposes to EBV infection. We show that wild-type CD137L was up-regulated on activated monocytes and dendritic cells, EBV-infected B cells, and SMT. The CD137LV140G mutant was weakly expressed on patient cells or when ectopically expressed in HEK and P815 cells. Importantly, patient EBV-infected B cells failed to trigger the expansion of EBV-specific T cells, resulting in decreased T cell effector responses. T cell expansion was recovered when CD137L expression was restored on B cells. Therefore, these results highlight the critical role of the CD137–CD137L pathway in anti-EBV immunity, in particular in the control of EBV+SMT.
Microbiota and adipocyte mitochondrial damage in type 2 diabetes are linked by Mmp12+ macrophages
Authors: Li Zhipeng , Gurung Manoj , Rodrigues Richard R. , Padiadpu Jyothi , Newman Nolan K. , Manes Nathan P. , Pederson Jacob W. , Greer Renee L. , Vasquez-Perez Stephany , You Hyekyoung , Hioki Kaito A. , Moulton Zoe , Fel Anna , De Nardo Dominic , Dzutsev Amiran K. , Nita-Lazar Aleksandra , Trinchieri Giorgio , Shulzhenko Natalia , Morgun Andrey
Published: June 2022

Microbiota contribute to the induction of type 2 diabetes by high-fat/high-sugar (HFHS) diet, but which organs/pathways are impacted by microbiota remain unknown. Using multiorgan network and transkingdom analyses, we found that microbiota-dependent impairment of OXPHOS/mitochondria in white adipose tissue (WAT) plays a primary role in regulating systemic glucose metabolism. The follow-up analysis established that Mmp12+ macrophages link microbiota-dependent inflammation and OXPHOS damage in WAT. Moreover, the molecular signature of Mmp12+ macrophages in WAT was associated with insulin resistance in obese patients. Next, we tested the functional effects of MMP12 and found that Mmp12 genetic deficiency or MMP12 inhibition improved glucose metabolism in conventional, but not in germ-free mice. MMP12 treatment induced insulin resistance in adipocytes. TLR2-ligands present in Oscillibacter valericigenes bacteria, which are expanded by HFHS, induce Mmp12 in WAT macrophages in a MYD88-ATF3–dependent manner. Thus, HFHS induces Mmp12+ macrophages and MMP12, representing a microbiota-dependent bridge between inflammation and mitochondrial damage in WAT and causing insulin resistance.
Self-Focusing of Gaussian Laser Beam in an Axially Magnetized Plasma
Authors: Nikam P. P. , Pawar V. S. , Patil S. D. , Takale M. V.
Published: June 2022

A well established parabolic equation approach to study the evolution of self-focusing of Gaussian laser beam in underdense, magnetized plasma has been presented. The uniform external magnetic field is assumed to be applied along (forward) as well as opposite (reverse) to the direction of propagation of laser beam. The nonlinear differential equation governing dimensionless beam-width parameter is derived under WKB and paraxial approximations. It is observed that forward (reverse) magnetic field increases (decreases) the self-focusing of Gaussian laser beam as compared to the unmagnetized case of reference.
Review of Cobalt Oxide (CoO) thin films prepared by various techniques
Authors: Himanshu  , Kumar Rajesh
Published: June 2022

It is reviewed that for fulfilling the demands of portable devices like phones, watches, low-cost energy storage system etc, cobalt oxides and their composite play a very promising role. Recently, nanotechnology has great application toward gay to-day life. This paper reviews the various deposition techniques for cobalt thin films such as chemical spray pyrolysis, atomic layer deposition, metal organic chemical vapor deposition, plasma atomic layer deposition, facile spray pyrolysis technique, spin coating techniques and reactive pulsed magnetron sputtering. Cobalt oxides are semiconductors and this material is very useful in electronic, optical and catalytic applications. In this review paper, various methods for formation of thin films were discussed. Number of properties such as structural, electrochemical and morphological of these prepared films was studied. It was observed that annealing temperature has great intense effect on thickness of films. This paper also discussed the characterization technique carried by researcher such as UV-spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, atomic force microscopy and high-resolution scanning electron microscopy (HRSEM). It was concluded that cobalt metallic films have great contribution toward new technological applications.
Alert system of fisherman for secure navigation
Authors: Anandh BA. , Sakthivel R , Shankar Ganesh A , Kaviya A
Published: June 2022

In day-to-day life we hear news about fisherman caught and even kill by naval infantry forces of other country for crossing the international borders. The proposed system can be used by the fisherman to safeguard them with the help of Global Positioning System (GPS) module based alerting system. The system uses the GPS device to get the current location i.e., latitude and longitude values of the boat and is continuously compared with the pre-set values in controller unit. As a result of this, the system alerts by buzzer sound before five hundred meter range and when the boat is near to international borders the speed of the boat is reduced. If the shipper refused to stop the boat and continues further the system alerts the fisheries by voice alarm. At the same time the control unit stops the boat from moving further and the present location is transmitted to the coastguards with the help of RF Transceiver. This is achieved when the boat is before 200 hundred meter range to of the international borders. If the boat tries to cross the international border or the boat is taken over by other countryman naval forces, the location of the boat is transmitted to coastguard port office continuously. This system also has hijack switch and when the switch is pressed it convey the hijack information and the current location to the coastguards continuously.
Design and Characteristics of various types of gas sensors for hydrogen sulfide gas detection - A Review
Authors: Sheoran Jyoti , Kumar Rajesh
Published: June 2022

This paper reviews the sensor design and the gas sensing characteristics such as stability, sensitivity, response time, range of operation etc. to detect and monitor highly toxic gas such as hydrogen sulfide. This gas is responsible for many deaths in the industrial environments and flaura and fauna of a region. The comparison between the gas sensors can be done on the basis of operating range of gas concentration and working principle. Also the various limitations of each gas sensor has been discussed. From this study the best possible materials that give best possible characteristics for the hydrogen sulfide gas sensor fabrication have been identified. Using this knowledge, a highly sensitive and selective gas sensor that will have industrial uses too will be fabricated.
Tunable thermochromism in V2O5 films deposited by cathodic vacuum arc method by tailoring the oxygen deficiency
Authors: Neema S. , Abhijith A R , Panwar O. S. , Srivastava A. , Rana A.
Published: June 2022

Theromochromism and electrochromic coatings have promising applications in smart windows, IR sensors, and bio-medical devices. In this paper, we report the growth of vanadium oxide films using cathodic vacuum arc method for thermochromic application. Successive annealing of the as grown film shows the formation of yellow color V2O5 films. The color of the as grown films suggest the growth of highly disordered black VxOy film which after annealing gets converted into yellow V2O5 as confirmed by the X-ray diffraction and Raman spectroscopy. The scanning electron microscopy equipped with energy dispersive X-ray analysis was used to investigate the morphology and chemical composition of V2O5 phase. Although, the films gets completely converted into the stable phase after annealing but heating cycling of temperature significantly changes the color of the films in a reversible manner that confirms the thermochromic behavior. We propose a breathing of oxygen (tailoring of Oxygen within the films) responsible for such reversible change in the color. These studies open new pathways for investigating these films to electrochromic properties by locally heating the materials through electric current (through Joule heating) and change the optical properties.
Study of co-pyrolysis process of biomass and plastic polymers for bio-oil production and upgradation: A review
Authors: Bisen D , Chouhan A P S , Sharma V
Published: June 2022

Current study highly motivated to use the solid wastes (biomass and plastic wastes) for clean energy production by using the thermo-chemical conversion process such as pyrolysis. The products of the pyrolysis are bio-oil, charcoal and pyro-gases. This technique can be provided the promising option on the clean energy production as well as reduction of the carbon level and greenhouse gases from the environment and it also promotes the Savach Bharat Abhiyan. The conventional pyrolysis process has some disadvantage such as produced bio-oil has some impurities such as water content, less heating value, high viscosity becausetar content and high ash content. All these properties of the bio-oil fuel can’t be upgraded by using the conventional pyrolysis process but these impurities can be removed by using the co-pyrolysis technique. Co-pyrolysis technique can be enhanced the fuel quality by upgrading the fuel such as heating value, reduction of tar content and ash contents and this study also covers the upgradation and improvement of the fuel quality.
Bifurcation and Stability Analysis of Delayed SIR Model
Authors: Singh Raminder Pal
Published: June 2022

In this paper, an SIR epidemic model is investigated and analysed by incorporating an incubation time delay in identification of infected population. The state variables considered are:susceptible, infected and recovered host individuals. The non-zero interior equilibrium is calculated. By applying the time delay as a bifurcation parameter, the local stability of the endemic equilibrium is studied and the condition which is absolutely stable or conditionally stable is established. Furthermore, a Hopf bifurcation occurs under certain conditions. Numerical simulations are carried out using MATLAB. to illustrate the main results.
Comparison of different laser pulse envelopes with frequency chirp for efficient electron acceleration in vacuum
Authors: Pramanik A K , Ghotra H S , Kant N , Rajput J
Published: June 2022

In the present manuscript, we have investigated the effect of chirped laser pulse envelope to study electron acceleration in vacuum. For this purpose, we have chosen two different pulse shapes, i.e trapezoidal pulse envelope and Sin4 pulse envelope. Electron has been injected axially to the front of the tested envelopes. In all calculations, the front end of each pulse is presumed to have caught up with the electron at t = 0 at the coordinate origin. The relativistic Newton-Lorentz equations of motion of electron in the field of the laser pulse have been analytically and numerically solved. By optimizing laser and frequency chirp parameters, the energy gain of the order of GeV is obtained, and it has been noticed that under the similar range of phases (0 to 2π) and laser intensity parameter (a0 = 3), trapezoidal pulse envelope shows better result than Sin4 pulse envelope on effective electron acceleration in vacuum.
A critical review on basalt fibre geo-polymer concrete
Authors: Pantawane Rashmi , Sharma Pushpendra Kumar
Published: June 2022

Concrete has very less tensile strength as no reinforcement is included in its components. To increase the strength of concrete, fibers are added which acts as reinforcementsinto the concrete and basalt fibers is one of them. This paper reviews the necessity of this fiber to enhance the basic properties of the concrete. Fibers also tends to modify the physical properties of concrete as well as the hardened properties. Basalt fibers are derived from igneous rocks which makes them free from any chemical and thermal reactions. Basalt fibers have found to increase the mechanical properties of the concrete. The physical properties such as setting times have been found to increase with the increase in the fraction in volume of the fibers, dry shrinkage and workability have been found to be reduced in the concrete. Basalt fibre have proven to be efficient reinforcement material in the concrete, providing long life to the concrete. This paper will enrich the domain of structural engineering and contribute a lot to the future researchers working on fiber reinforced concrete at a glance.
Study of growth rate of backward Raman scattering in plasma with density ripple
Authors: Ali Abdirahman Haji , Kamboj Oriza , Kant Niti
Published: June 2022

The recent studies proved that stimulated backward Raman scattering of a laser is affected significantly by the existence of magnetic field and density rippled plasma. At lower hybrid frequencies, the localized radial and azimuthal modes can be supported by the magnetized plasma. The density ripple interacts with the Raman process’s main Langmuir wave, producing in a secondary Langmuir wave with a higher wave number that is highly Landau damped on the electrons. Numerically, the influence of various modes on the growth rate revealed that the ripple and local effects greatly decrease the growth rate of stimulated Raman backscattering. As a result, the Raman process is controlled by the magnetized density rippled plasma and the growth rate is reduced significantly.
Role of titanate-based perovskites in solar water splitting: an overview
Authors: Amika  , Sharma Rajesh , Sharma Ajit , Chandrani Ankush , Singh Jashanpreet , Kumar Deepak
Published: June 2022

Currently, for energy requirement, mainly dependent on fossil fuels which have harmful effects on environment. There is an urgent requirement of alternative energy source. Solar energy is particularly attractive due to cleanliness and inexhaustible nature. The utilization of solar energy is being intensively studied worldwide. Solar water splitting is an encouraging strategy for feasible production of renewable hydrogen. For solar water splitting there is need of non-toxic, low cost, efficient and stable photocatalyst. Recently, titanate-based perovskite photocatalysts have attracted attention for photoelectrochemical water splitting under solar light irradiation. Due to their wide applications, tunable band gap and high photo-corrosion stability titanate-based perovskites are used in hydrogen generation. The main objective of this review is to overview of the recent developments in titanate-based perovskites, their modification and role in hydrogen production under solar light irradiation.
Study of bio-oil production from (Eucalyptus and Plastic) wastes by using the Co-pyrolysis technique: review
Authors: Sharma V , Chouhan A P S , Bisen D
Published: June 2022

This study incorporated the co-pyrolysis of eucalyptus biomass and plastic-wastes for bio-oil production. This study also discussed the advantage and challenges of the used technique for bio-oil production. In conventional pyrolysis process found some drawbacks such as tar content and thermal instability. These issues can be resolved by using the co-pyrolysis technique to meet the modification of the quality and combustion stability of bio-oil. This study also promotes environmental safety by reducing the carbon level from the atmosphere by using solid wastes (eucalyptus wood and plastic-wastes).
Effect of wiggler magnetic field on harmonic generation at metallic surface
Authors: Dua Harleen Kaur , Kant Niti , Thakur Vishal
Published: June 2022

Second harmonic generation induced by surface plasma wave at the metal-semiconductor interface has been investigated. A thin layer of metals like Cu and Al have been considered in attenuated total reflection configuration(ATR) with a thin layer of semiconductor n-InSb over it. The study has been done in the presence of a wiggler magnetic field. The field provides additional momentum to the photons which help to attain phase matching conditions, leading to a resonant process of harmonic generation. Numerical analysis under given conditions show that Cu-InSb is the better choice for the harmonic generation as compared to Al-InSb.
Preparation and Characterization of Vanadium Doped Polyvinylpyrrolidone Nanocomposite
Authors: Bisoyi Sagar , Acharya Aman Deep , Manhas Sandeep S , Ginni  , Sakshi
Published: June 2022

Vanadium Oxides (V2O5) nanoparticles have been prepared by using a simple chemical method. 0.25 wt. % of Vanadium oxides (V2O5) doped Polyvinylpyrrolidone (PVP) (V2O5:PVP) polymer composite prepared by solution casting technique have been characterized for their structural and optical properties. The formation of phase are orthorhombic in structure has been confirmed by X-Ray Diffraction (XRD). The band gap of the composite was determined by using UV-Visible spectroscopy. These outcomes confirmed that the simple synthesis process can be used for the preparation of such composites appropriate for wide range of applications.
Physicochemical Properties of Mango Pulp and Mid-infrared Characterization
Authors: Majumdar A D , Kamboj U , Munjal N
Published: June 2022

Aim of the present study was to predict physicochemical parameters that are ash content, water content and fat content and to predict the presence of different organic molecule in the mango pulp. The prediction for the presence of the organic molecules has been done with the Fourier Transform Infrared Spectroscopy (FTIR). The spectra of mango pulp were measured using FTIR ranging from wavenumber 400 cm-1 to 4000 cm-1. Physicochemical parameters has been analysed with hot air oven, muffle furnace and automated Soxhlet apparatus for moisture content, ash content and crude fat content respectively. This study showed that FTIR spectroscopy has efficiency to distinguish some organic molecules present in the mango pulp.
First-principles calculations on mechanical properties of Rh2MnZn Heusler alloy
Authors: Kaur Navdeep , Srivastava Vipul
Published: June 2022

Heusler alloys are a huge family of binary, ternary and quaternary compounds and contain a wide range of unique properties, which made Heusler compounds to be the efficient materials for diverse applications. When it comes to the commercial applications mechanical properties are worth of check on and turn out to be the significant factor in the processing and final use of the materials. These properties make the study proficient by examine the nature of material under external pressure. In this study, we estimated mechanical properties of Rh2MnZn full-Heusler alloy using the full-potential linearized augmented plane wave method (FP-LAPW) method within the density functional theory (DFT). We have obtained C11, C12and C44elastic constants due to cubic symmetry using Charpin method implemented in Wien2k code. Further, using these elastic constants mechanical properties such as bulk modulus, shear modulus, Young’s modulus, Poisson’s ratio, anisotropic factor and Cauchy’s pressure are calculated. These moduli depicted hardness, ductility and elastic anisotropy of the alloy.
Down conversions luminescent properties of Eu doped SrTiO3
Authors: Bakshi Shruti , Rani Suman , Kaur Prabhpreet
Published: June 2022

The work presents down conversion (DC) luminescent properties of pure SrTiO3 (STO) and Eu3+ doped STO prepared by wet chemical reaction sintered at 1100°C. Prepared samples were characterized by FT-IR, UV absorption, XRD, EDX and fluorescent spectroscopy. The FT-IR spectrum of Eu3+ doped STO had absorption bands at 922, 972 and 538 cm-1 indicating the stretching vibration of Sr-O, Eu-O and Ti-O bond, respectively. XRD pattern of SrTiO3 sintered at 1100°C depicted a typical perovskite of cubic symmetry. The EDX spectra confirmed the uniform substitution of Eu3+ in STO. The optical absorption edge of pure SrTiO3 was in UV region. Emission properties were studied by exciting the pure STO and Eu doped STO by 280,325 and 396 nm wavelengths. Eu3+ doping enhanced the emission intensity if STO. Multiple peaks were observed in visible region ranging from 400 to 700m which might be due to defect states present in energy band gap. Therefore visible emissions were obtained from STO and Eu3+ doped STO by exciting with UV light. Visible emission from prepared STO and Eu3+ doped STO powder could be useful in solid state lighting and for display devices.
Coco Peat Organic Manure used as Adsorbents for Dyes Removal
Authors: Shah V U , Hussain S
Published: June 2022

Textile effluents constitute both organic and inorganic constituents and heavy metals which are not economical to treat and hence discharged into water bodies causing water pollution. Methods like ozonation, adsorption, membrane separation, bio sorption, biodegradation, electrochemical degradation, and phytoremediation and H2O2/UV radiation techniques were frequently used for the decolourization of azo dye containing water. Among these aforementioned techniques, the adsorption technique has shown good performance owing to several inherent advantages like high performance, easy handling with no generation of the toxic intermediates. Also dye treatment should be affordable and eco-friendly. Biochar is a sustainable material which can be used for dyes treatment.

In this paper, biochar produced using coconut shell was investigated for the removal of methylene blue as the colouring agent. Batch studies were carried out for decolourization of methylene blue based artificial waste water. Different concentrations of methylene blue from 50-300mg/l was used. The validation of the tests was done using data to fit into the Langmuir isotherms and Freundlich isotherm. The adsorption isotherm was well fitted for Langmuir compared to Freundlich. The KL and KF values were also found.
Study of Molecular interactions of glycols with D-Mannitol at different temperature
Authors: kaur Harsimaran , Patnaik Prachi , Kumar Harsh
Published: June 2022

The density and speed of sound for glycols (EG, DEG, and TEG) in an aqueous solution of D-Mannitol have been measured by Anton Paar DSA 5000M at different temperatures and concentrations. Experimentally obtained data of density and speed of sound are employed to calculate various theoretical parameters such as intermolecular free length, acoustic impedance, adiabatic compressibility, Wada’s constant, Rao’s Constant, and Vander Waal’s constant which gave the better insight into molecular interactions between the glycols and D-mannitol solutions. The linear trend for all the parameters implies the absence of complex formation in the system.
Antibacterial activities of zinc oxide nanoparticles: a mini review
Authors: Kalra Kavita , Chhabra Vandna , Prasad Nupur
Published: June 2022

Highly reactive oxygen species (ROS) are released from the surface of zinc oxide nanoparticles (ZnO NPs) which cause damage to the microorganisms. ROS may break down the cell wall and cell membrane of the bacteria leading to the leakage of cell contents causing their death. Antibacterial effect of ZnO NPs synthesized from plants’ extracts has been seen against several grampositive (Bacillus coagulans, Staphylococcus aureus, Bacillus subtilis) and gramnegative bacteria (Shigella dysenteriae, Sphingomonas paucimobilis, Salmonella typhimurium, Escherichia coli, Bacillus pumilus, Salmonella typhi). Zinc ions (Zn2+) freed from ZnO NPs may attack DNA and proteins of the cell, thus hindering the growth of the bacteria. The negative charge on the surface of some bacteria (E. coli, S. typhi) interacts with positively charged particles in ZnO NPs inhibiting the growth of these bacteria. The rate of antibiotic activity of ZnO NPs depends on size, the concentration of ZnO NPs, and the type of surfactant used in the synthesis of these ZnO NPs. Due to their antibiotic property, ZnO NPs can be used as antibacterial coating of inner surfaces of refrigerators and dishwashers, plastic food containers, in the lining of food cans used for packaging and preservation of food to prevent their spoilage.
Potential solvents and electrolytes for energy storage applications: A Review
Authors: Sharma Chitra , Thakur Ramesh Chand
Published: June 2022

Since the industrial sector leans more on fossil fuels to pace up with the required energy needs. To overcome increasing demand for electricity, it is important to store the energy generated from natural resources so that energy can be used as and when required. Energy storage devices are one such means used worldwide for conserving different forms of energies and need of the hour is to discover and explore strong and secure electrical energy storage technologies. In this review an effort is made to do a comparative analysis of various types of materials and solvents used for energy storage applications during last two decades. Attempt has also been made to explore and discover different class of solvents and electrolytes that are environment friendly and have minimal impact on living organisms. As salts and the solvents are significant ingredients in the energy storage devices, so this analysis will also provide a first-hand perspective of many solvent candidates for energy storage applications. From the analysis and detailed review, it has been observed that the solvents exhibiting large electrochemical window, high thermal and chemical stability, low toxicity, and volatility are the important features which makes them important constituent of different energy storage devices like flow batteries, supercapacitors, and rechargeable batteries. Advancement of cutting-edge battery innovation is important in view of various applications like hybrid cars, smartphones, laptops etc.
Quantitative Estimation of Power Loss in Optical Fiber by Considering the Fresnel Reflection at the Boundaries
Authors: Mukherjee Suman , Hashem Mohammad Yaqubi
Published: June 2022

Optical fiber has become an indispensable tool in our everyday life because of it’s special properties to send light to long distances without losing much of it’s signal power, compared to conventional wire. Although optical fiber is proven to be more efficient and very fast in delivering signal in the area of communication industry, still some losses of signals occur inside the fiber optic cable. Most of the losses have been described in standard text books viz. scattering loss, bending losses, absorption loss etc are pretty straight forward when one calculates the loss of signal power inside an optical fiber. In this article, the loss of signal is calculated and studied by considering Fresnel’s equation (due to Fresnel’s reflection at the boundary) along with absorption loss due to materials property. Although Fresnel’s loss is very small but it could be significant if the fiber connection is thousands of kilometers long and there are multiple joints of different fibers. This Fresnel’s loss only happens at the boundary of a material. For simplicity the loss due to scattering, bending of rays and any other types of losses have been ignore in this work, except absorption loss.
A New Approach to Define Length of Pythagorean Triples and Geometric Series Representation of Set of Pythagorean Triples
Authors: Srinivas Thiruchinapalli , Sridevi K
Published: June 2022

The solutions to the quadratic Diophantine equation
x
2 + y
2 = z
2
are given by Pythagorean Theorem. In this paper, we are revisits well known problem in Number Theory, Set of Pythagorean Triples P = {(
x, y, z
) ∈
Z
3:x
2 + y
2 = z
2
} in different perspective, to define Length of Pythagorean primitive triples and Length of Non primitive triples. Also focused to study Geometric Series representation of Set of Pythagorean triples and its relation with above Length of Pythagorean triples.
Fixed point results for generalized rational contractions in complex valued G-metric spaces
Authors: Gupta V , Saini R
Published: June 2022

In present article, we demonstrate some fixed point results for generalized rational contractions in complex valued g-metric space. Our outcomes extend and generalize various famous results in the literature.
Mammogram Image Retrieval System Using Texture and Semantic Features
Authors: Sharma Vipul
Published: June 2022

Image retrieval systems might help radiologists in aiding their diagnostic decision-making by giving a way to discover and identify similar images from databases. Keyword-based search became the dominant paradigm for searching multimedia datasets in the early years of image retrieval. However, using keywords alone has numerous drawbacks: human annotation is time-consuming and intrinsically incomplete, and the relationship between words and concepts is sometimes complicated. These significant challenges have motivated research in the field of Content-Based Image Retrieval (CBIR). However, using visual content has its own set of restrictions, owing to the Semantic Gap, which describes the disparity between low-level information that can be extracted quickly from images and high-level descriptions that are meaningful to users. As a result, a system with integrated approaches is important. In this paper a mammogram image retrieval system based on low level visual features and high-level semantic features has been proposed. Based upon the proposed framework, a prototype of mammogram image retrieval system has been developed. The proposed framework for retrieval of mammograms consists of two phases. The system first exploits the textual features and then further refines the search using visual features. Further, if the user is unsatisfied with the search results, he or she can send Relevance Feedback (RF) to the retrieval system, which has methods to learn about the user’s information needs. A system like this might be utilised for Computer Aided Diagnosis, medical education, and research. The framework established is generalizable and adaptable to a variety of anatomic and diagnostic circumstances. The proposed system’s performance is demonstrated by the experimental findings.
Modelling the Effect of Toxin Producing Prey on Predator Population using Delay Differential Equations
Authors: Kumar Pankaj , Raj Shiv
Published: June 2022

A mathematical model is proposed to study the effect of toxin producing prey on predator population using delay differential equations. The associated state variables are Prey populations and predator populations. The assumption is that the toxicity released by prey population adversely affects the predator population. The feasible interior equilibrium is calculated. Hopf bifurcation is observed about the critical value of delay parameter. Analytical findings are supported using MATLAB simulation.
Permanence for an impulsively perturbed periodic single-species model considering Monod-Haldane Type functional response as predation term
Authors: Kalra P , Kaur M
Published: June 2022

Evolution of species encounter different sudden short term changes in population density in this ever changing environment. Impulsive differential equations are an appropriate tool to model population ecology. A single-species population model under the influence of constant and linear impulsive perturbations at fixed moments of time is analyzed in which Monod-Haldane functional response is taken as predation term. The conditions required for the permanence of species are established by using comparison analysis technique. To substantiate the theoretical findings, numerical simulation is done using MATLAB.
A semi-automated cleaning system for indoor floor and air quality control
Authors: Roshini Gayatri A , Geethika P , Devika B , Taraka Sai Anil B , Sumalatha A
Published: June 2022

Researchers have found through different tests, that all kinds of harmful substances are present in case of an indoor environment, such as heavy metals, pesticides - these come from household products, toys, carbon dioxide, humidity, etc. People are regularly exposed to these harmful substances through breathing and skin contact. This long-term exposure can affect people’s health very seriously. To achieve a good quality environment indoors, a portable device is proposed here. Through, the development of this device we can monitor indoor air quality, control the indoor air quality and also clean the floor. Monitoring is done by sensors; controlling is performed by a mini air purifier which is attached to a floor cleaner. Whenever the parameters which are received from the sensors are more than the permittable limit then the air purifier starts its operation and stops when the parameters are within the permittable limit, by this process we can reduce the power consumption of the device. The whole device is driven by a battery that can be rechargeable.
A Brief Review of Operator Monotone and Operator Convex Functions
Authors: Agarwal Himanshu , Garg Isha
Published: June 2022

This article is about transient information regarding the functions that satisfy the conditions of monotonicity and convexity on a set, onset of matrices of particular patterns with finite or infinite order called operator monotone or operator convex functions. Data is gathered by investigating numerous existing articles, review papers, publications that show wide scattering in multiple dimensions according to the behavior and prolific results. This work emphasizes not only the origin, key results, and applications of convexity and monotonicity but also their extensions in different directions. It also takes us to the current research scenario in relating fields and may provide an opportunity to express some new ideas, methods, or concepts.
An Algorithm developed by implementing Modified Cubic Hyperbolic B-Spline based Differential Quadrature Method on non-linear Burgers’ equation
Authors: Kapoor Mamta , Joshi Varun
Published: June 2022

Present paper proposed a novel regime has been proposed named “Modified Cubic Hyperbolic B-Spline Differential Quadrature Method.” In the present method, a cubic Hyperbolic B-spline is used as a test function in the “Differential quadrature method.” This method has been employed to test the effectiveness and feasibility of approximation of the 1-D Burgers’ equation. In order to check the compatibility of the proposed method, a variety of test problems are discussed. A comparison is made between L2
and L∞
error norms by considering some examples already present in literature. The corresponding set of Ordinary Differential Equations is solved by using the Strong-Stability-Preserving Runge-Kutta (43) method, i.e. (SSP-RK43) method. It has been observed that obtained results have excellent compatibility with numerical approximations discussed in literature. Stability of developed regime is addressed by eigen values method.”
To Study the Bianchi type V Cosmological Model with Quadratic Equation of State in Modified theory of Gravity
Authors: Kumar R , Tandon R , Gupta J
Published: June 2022

In this paper, Bianchi type-V cosmological model in perfect fluid with quadratic equation of state p= αρ2-ρ, where α≠ 0, has been studied in modified theory of gravity. The general solution of the f(R, T) equations for Bianchi type-V space-time has been obtained by considering a law of variation of scale factor which yields a time dependent deceleration parameter. The model represents the transition of the universe from early deceleration phase to the recent accelerated expansion phase.
Thermophysical and conductometric study of lithium perchlorate in binary aqueous mixture of polyethylene glycol (PEG-400)
Authors: Rana Sapna , Thakur Ramesh C
Published: June 2022

In the present study apparent molar volume, partial molar volume, viscosity and conductance parameters of lithium perchlorate (LiClO4) in 0.01m, 0.03m and 0.05m aqueous polyethylene glycol (PEG-400) have been determined by using density, viscosity and conductance data at five equidistant temperatures 298.15K, 303.15K, 308.15K, 313.15K and 318.15K. Data is analysed in terms of various molecular interactions by using Masson’s and Jones-Dole equations. The structure making/breaking behaviour of LiClO4 is interpreted from 2 the sign of [∂2 ϕv°/∂T2], dB/dT and temperature coefficient of Walden product i.e., d(Λm°η°)/dT values. In the present study LiClO4 has been found as structure-maker in 0.01 m, 0.03m and 0.05m aqueous polyethylene glycol (PEG-400).
To study the effect of laser frequency-chirp on trapped electrons in laser wakefield acceleration
Authors: Sharma Vivek , Kumar Sandeep
Published: June 2022

The wakefield excitation and electron acceleration is investigated in the presence of laser pulse with and without frequency-chirp in an under-dense plasma via particle in cell simulation. For this purpose, first 1D model of laser wakefield acceleration is revisited. The analytical expressions for the longitudinal wake-potential and wakefield generated behind the laser pulse are obtained. The results show that the wake-fields excited by laser pulses are strongly dependent on the chirp parameter. These results could be very useful as a starting point for optimization studies for a real LWFA experiment.
Inter-molecular investigation of polyethylene glycols in methanol and butylparaben mixture to compute volumetric and acoustic parameters at 293.15 & 298.15 k temperature
Authors: Thakur Ashima , Anand Vibhakar , Kumari Anjali
Published: June 2022

Acoustic parameters such as acoustic impedance, intermolecular free length, adiabatic compressibility, relative association, and Gibb’s free energy of polyethylene glycols of molecular weight 200 and 600 in methanol butylparaben solution were investigated using ultrasonic velocity and density measurements at temperatures T=293.15 and 298.15k and experimental pressure p=0.1MPa. The acoustic parameters adiabatic compressibility and intermolecular free length obey the same pattern as these measured parameters; however, the parameter acoustic impedance follows the opposite trend. In the current scheme under investigation, there are strong interactions between the solute and solvent molecules.
Structural Phase Transformation in REX (La, Ce and Pr) Chalcogenides: A Combined Study
Authors: Verma Sandeep
Published: June 2022

The chalcogenides of the rare earth have always been considered for the study because of their partially filled f-electrons. These partially f-electrons are accountable for various unusual physical and chemical properties of the materials. Some thermodynamic variables also play important role for various other properties like valence change, structural change and state change. The pressure is one of the thermodynamic variables under which solids change their structures. Generally, binary rare earth chalcogenides have NaCl-type structure under ambient conditions. In this paper we have discussed pressure induced structural phase transition in chalcogenides (X=S, Se and Te) of rare earth elements (RE = La, Ce and Pr) as LaX, CeX and PrX compounds along with their ground state properties using various first principles theories and experimental techniques. These compounds undergo pressure driven structural phase transition from NaCl-type (B1) to CsCl-type (B2).
The optimal number of servers in a many server queuing system
Authors: Abubakar Ibrahim Adamu , Arora Geeta , Kumar Banti , Danjuma Mustapha
Published: June 2022

Classical queuing theory may be described as a branch of applied probability theory dealing with a model denoted by GI|G|S and with special cases and variants of this model. In the model GI|G|S we assume that customers arriving according to a renewal process want to be served by one of S identical server, requiring service times which are independent and identically distributed if customers cannot be served immediately they join a queue to wait for service. Several queue disciplines (i.e. the order in which customers are served) may be considered. Moreover, one can think of any different configurations (network) of servers, in parallel or in series or both, which are of practical interest. For such models one usually study the distributions of quantities like the waiting time, the queue length of a busy period. In this approach the question of optimality does not come up immediately. In practice, however, queuing models are applied for making good or preferably optimal decisions. These decisions may concern the queuing system itself, e.g. one may vary one or more parameters or change the queue discipline or the configuration of servers; they may also influence the arrival or queuing behavior of the customers