bluuebunny/crossref_metadata_2025 huggingface dataset:
Growth, yield, water use efficiency of coriander (Coriandrum sativum) affected by irrigation levels and fertigation
Authors: HARISHA C B , ASANGI HONNAPP A , SINGH RAVINDRA
Published: December 2022

Understanding the effect of irrigation and fertigation on yield is essential for planning irrigation and nutrient management strategies in water scares regions. Therefore two years field experiment (2014-15 and 2015-16) was conducted to find out the interaction effect of irrigation regimes and fertigation on growth, seed yield, quality, water and nutrient use efficiency of coriander (Coriandrum sativum Benth.). In this study four irrigation levels (0.4 ET, 0.6 ET, 0.8 ET and 1.0 ET) and three fertigation levels (F1-50% nutrients F2-75% nutrients and F3-100% nutrients) were maintained using drip irrigation.Irrigation and fertigation significantly influenced the growth and seed yield along with water and nutrient use efficiency. The study revealed that irrigation at 0.8 evapotranspiration (ET) was optimum for obtaining better crop growth and seed yield in coriander. Significantly increase the essential oil content of seeds varying from 0.19% to 0.24% in drip irrigation at 0.4 ET and 1.0 ET, respectively. But fertigation has no significant influence on essential oil content. Water use efficiency was found higher in irrigation at 0.4 ET and it is 7.98 kg/ha mm of water and lowest was 5.07 kg/ha mm of water in case of irrigation at 1.0 ET. It is also observed that increasing irrigation level tends to improve nutrient use efficiency. It is concluded that drip irrigation at 0.8 ET along with 75% recommended dose of nutrients are optimum for coriander production, which ensures higher seed yield, water use efficiency and essential oil content.
Assessment and role of genetic diversity of component traits for improving grain yield and heat tolerance in bread wheat (Triticum aestivum)
Authors: KUMAR ANKIT , KUMAR PRADEEP , SINGH GYANENDRA
Published: December 2022

The present investigation was carried out in a randomized block design (RBD) with 20 diverse wheat (Triticum aestivum L.) genotypes grown under three environments i.e. 25th November, 2012 (Environment-I, timely sown), 24th December, 2012 (Environment-II, late sown) and 15th January 2013 (Environment-III, very late sown). The environment wise analysis of variance for grain yield and its contributing traits indicated highly significant differences among the genotypes for all the traits under study. High heritability along with high genetic advance and high coefficient of variation (PCV and GCV) for grain yield across three environments indicated substantial contribution of additive gene action in the expression of desirable traits and thus selection would be effective for genetic improvement of grain yield in wheat. On the basis of multivariate analysis, 20 genotypes were grouped into five clusters based on D2 value. The cluster V contained the maximum number of genotypes (6) in Environment-I,whereas cluster II included six genotypes in Environment-II, cluster IV included 07 genotypes in Environment-III and on pooled analysis basis cluster V had 07 genotypes. The highest inter cluster values were observed between cluster II and III (2690.75), followed by cluster I and II (2494.51), cluster II and V (1334.53), cluster III and V (730.74) in the first, second, third environments as well as pooled analysis basis, respectively, and thus genotypes included in these clusters showed wide genetic diversity and thus may be utilized in hybridization programme targeting wheat breeding for obtaining transgressive segregants to improve grain yield under varying environments. Based on the cluster mean analysis, genotype K 512 in E-I (timely sown) and E-II (late sown) while AAI 13 in E-II (late sown), E-III (vary late sown) and also in pooled analysis were rated better performing for multiple yield traits and these genotypes can be considered in breeding programme as well as for further study for developing superior wheat genotypes.
La garrapata Amblyomma parvum como vector potencial de patógenos en animales y seres humanos
Authors: Rodriguez-Vivas Roger Ivan , Ojeda-Chi Melina Maribel , Ojeda-Robertos Nadia F. , Dzul-Rosado Karla Rossanet
Published: December 2022

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La garrapata Amblyomma ovale: otro potencial vector de agentes patógenos para animales y humanos
Authors: Rodriguez-Vivas Roger Ivan , Ojeda-Chi Melina Maribel , Sánchez-Montes Sokani , Torres-Castro Marco Antonio
Published: December 2022

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Panorama de enfermedades tropicales desatendidas durante la pandemia COVID-19
Authors: Dzul-Rosado Karla Rosannet , Cordero-Najera Rossy , Colli-Pacheco Adrien , Salinas-Puebla Luis David , Pinto-Narváez Mauricio , Almeida-Salinas Daniela M , Vázquez-Segura Hayde Sara Leticia , Pacheco-Pino Paulina Alejandra , Herrera-Pacheco Danielina , Mendez-Dominguez Nina
Published: December 2022

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A Study of Choreography Courses for Musical Theater Majors
Authors: Gang Yi , Zhang Bi
Published: December 2022

Musical theater education in Chinese universities is generally focused on training musical performance talents, and the dance courses involved are also set up to enhance dance performance. The dance styles learned are mainly ballet, modern dance, jazz dance and tap dance, which are common in European and American musicals. However, in the actual musical rehearsal process, the use of dance to create dramatic characters, develop dramatic events, and show dramatic emotions and conflicts requires the skilled creative ability of the musical choreographer. The educational process of musical choreography is a multi-faceted process, which requires the choreographer to have a solid theoretical basis and flexible creative skills. By comparing with universities in Europe, America and South Korea that have musical theater major, this paper studies the advantages and disadvantages of musical theater major courses in Chinese universities in terms of choreography training. Based on the actual situation of China, this study finds the curriculum that conforms to musical choreography through multi-angle analysis of practice, creation, and theory.
Black Panethnicity: Origins and Evolution
Authors: Yang Philip Q. , Brown Monicka
Published: December 2022

Unlike studies of Asian, Hispanic, Indian, and white panethnicity, systematic research on black panethnicity is lacking. To fill this lacuna, this study examines the origins of black panethnicity in colonial America and follows its evolution through U.S. historical periods. Comparative-historical methods are used to assess the creation and development of black panethnicity and to compare it with other types of panethnicity. The analysis focuses on two periods of black panethnicity. In the first stage, black panethnicity emerged from the racialization of black Africans during the Trans-Atlantic Slave Trade and the black slavery era. The second stage revealed how black panethnicity evolved during the historical periods of Reconstruction, Jim Crow, and Civil Rights. The similarities and differences between black panethnicity and panethnicities of other groups are also discussed.
Development and Validation of Rapid LC-MS with Electrospray Ionization for the Quantification of Pramipexole in Human Plasma
Authors: Lavudu Petikam , Rani Avula Prameela , Sekharan Chandra Bala
Published: December 2022

A rapid, accurate and precise LC-MS method is described for the quantitative determination of pramipexole in human plasma matrix using ropinirole as internal standard. Pramipexole and ropinirole were extracted from plasma by liquid-liquid extraction technique. The method was validated over the concentration range of 100-2514 pg/mL. The method was found to have acceptable accuracy, precision, linearity and selectivity. The mean extraction recovery from spiked plasma samples was in the range of 79.415-87.00 %. The intra-day accuracy of the assay ranged from 98.924 to 112.236 % and intra-day precision ranged from 3.489 to 6.756 %. Inter-day accuracy and precision results for quality control samples ranged between 100.340 and 107.443% of nominal and precision is observed to be 3.970-5.714 %. The pramipexole was found to be stable after several stability studies. The proposed method yielded a quick, simple and reliable protocol for estimating pramipexole concentrations in human plasma.
Points to Ponder in the Study of Cadmium Iodide
Authors: Kaur Harjeet
Published: December 2022

During the growth of cadmium iodide crystals from solution, it has been observed that sometimes the crystal suddenly rotates. Probably, the convection currents are providing the force for the rotation. Mathematically, this force can be estimated and it must be greater than the van-der Walls force acting between adjacent sandwiches of cadmium iodide and can give rise to polytypic phase transformations. Further, studies of vacancies and the density measurements of various polytypes can help in understanding the phenomenon of polytypism better.
Synthesis and Characterization of Natural Fibers Reinforced Fiber Epoxy Composites
Authors: Basha U. Mahaboob , Krishnudu D. Mohana , Hussain P. , Reddy K. Manohar , Karthikeyan N. , Kumar M. Ashok
Published: December 2022

In the current work epoxy resin is chosen as matrix, treated Sacharum offinarum ( SugarCane) fiber, Pennisetum typhoides (Jowar)/ Fillet miller (Ragi) filler are chosen as reinforcement. Room temperature cured Epoxy System filled with Sacharum offinarum fiber and Pennisetum typhoides (Jowar)/ Fillet miller (Ragi) filler are synthesised by mechanical shear mixer, then kept in a Ultra sonic Sonicator for better dispersion of Pennisetum typhoides (Jowar)/ Fillet miller (Ragi) filler in the matrix. Different weights of modified Pennisetum typhoides (Jowar)/ Fillet miller (Ragi) filler (1,2,3,4,5 gm wt) has been incorporated into the Epoxy matrix in order to study the variation of Mechanical and Thermal properties.
Theoretical Approach to the Common Events in Every Living Cell - Protein Folding and Protein Misfolding
Authors: Vaibhav V.K. , Sachin S.L.
Published: December 2022

Folding and unfolding are crucial ways of regulating biological activity and targeting proteins to different cellular locations. Aggregation of misfolded proteins that escape the cellular quality-control mechanisms is a common feature of a wide range of highly debilitating and increasingly prevalent diseases. Protein misfolding is a common event in living cells. Molecular chaperones not only assist protein folding; they also facilitate the degradation of misfolded polypeptides. Protein folding is governed solely by the protein itself, scientists discovered that some proteins have helped in the process called chaperones. When the intracellular degradative capacity is exceeded, juxtanuclear aggresomes are formed to sequester misfolded proteins. Misfolding of newly formed proteins not only results in a loss of physiological function of the protein but also may lead to the intra- or extra- cellular accumulation of that protein. A number of diseases have been shown to be characterised by the accumulation of misfolded proteins, notable example being Alzheimer's disease.
Mathematical Modeling by Monte Carlo Method of Defects in the Structure of Fibre Composites Using as a Binder of Polybutadiene Oligomers
Authors: Figovsky Oleg , Potapov Yury , Panfilov Dmitry , Kashtanov Sergey , Yudin Eugeny
Published: December 2022

Production of materials with low content of structural defects. Application of Monte Carlo method to quantify fiber intersections in the rubcon structure with account of specified sizes of samples. The article presents quantity-content curves for a number of areas with the dimensions smaller than the diameter of the permissible inhomogeneity against fibreboard percentage. Analyzed quantity-content curves for a number of areas with the dimensions smaller than the diameter of the permissible inhomogeneity against fibreboard percentage and proven influence of stress concentrators on material strength.
Potential Energy Surface (PES) Scan of Gas-Phase L-Proline
Authors: el Guerdaoui Anouar , el Kahoui Yassine , Bourjila Malika , Tijar Rachida , el Gridani Abderrahman
Published: December 2022

We performed here a systematic ab initio calculations on neutral gas-phase L-proline. A total of 8 local minima were located by geometry optimization of the trial structures using density functional theory (DFT) with B3LYP three parameter hybrid potential coupled with the 6-31G)d( basis set. The absolute minimum obtained will be subject to a rigid potential energy surface (PES) scan by rotating its carboxylic group using the same method with more accurate basis set B3LYP/6-311++G(d,p), to get a deeper idea about its conformational stability. The main aim of the present work was the study of the rigidity of the L-proline structure and the puckering of its pyrrolidine ring.
Measurement of Radioactive Impact of the Gas Well Accident on Environment of Sylhet Division in Bangladesh
Authors: Chakraborty Shyamal Ranjan , Kanti Saha Khokan , Alam Md. Kowsar , Rahman Abul Khaer Mohammed Rezaur , Kamal Masud , Islam Chowdhury Mantazul
Published: December 2022

The main goal of this study is to carry out the public exposure contribution from radioactive materials occurring due to the accident of natural gas exploration well of Sylhet division in Bangladesh. This study has been performed by using a gamma spectrometry of Genie 2000 software embedded PC-based High Purity Germanium (HPGe) detector system. The measured activity concentrations of naturally occurring radionuclides 232Th, 226Ra, and 40K have been in the public safety limit on the environment of the study areas. The specific activity of detected anthropogenic radionuclide 137Cs has been found to be very little with a mean value of 1.65 ± 0.61 and 1.13 ± 0.57 Bq·kg–1 in the Magurchhera and Haripur gas field area respectively.
The Dynamics of Concentration of Selected Chemical Components of Rainfalls in the Miedzyzdroje
Authors: Daniszewski Piotr
Published: December 2022

The development of a business man and also growing up processes the transformative environment adversely affect the individual elements of the natural environment. These processes they realize that individual elements of environmental protection becomes the basis for the further development of socio-economic background. In recent years the increasing pollution of the atmosphere causes more and more interest in the science of the substances contained in it and merge back to the surface of the Earth. Of great importance for the environment have the substances contained in the water drainage, as in the form of dissolved very easily reach the individual environmental elements causing their contamination. Research was carried out in the years 2008-2011 (January-December) in the town of Międzyzdroje. In the tests was measured the amount of precipitation, chemical composition (NH4+, NO3-, PO43-- ions were numbered), pH and conductivity. Międzyzdroje is a city located in the north-western part of the county on the island of Wolin on the Baltic Sea. The city is located on the Bay of Pomorska, in the central part of the coast of the island of Wolin. Part of the East of Międzyzdroje is situated on the western slopes of the remains of the Beautiful. The climate of the island of Wolin is different from the rest of the country because the climate is strongly influenced by the presence of the Baltic Sea. It is characterized by high humidity, sunlight and precipitation variability, wind direction and force large diurnal temperature amplitude. Międzyzdroje is a resort and tourist destination.
Analysis of the Requirements of the Wire Rod Production Standards in Ukraine
Authors: Yershov Serhiy D. , Samokhval Volodymyr , Antonov Yuri , Medinsky Gregory
Published: December 2022

It is observed the dynamic of changes in the requirements of national and international standards for production of wire rod. It is shown that the general trend in changing of requirements is not a tightening of technical parameters but in some cases the extension of the range of variation of parameters, which provides the wide opportunities for producers.
Antimicrobial Activity of some Pyrimidine Derivatives in DMF and DMSO
Authors: Baluja Shipra , Chanda Sumitra , Nandha Kajal
Published: December 2022

A series of pyrimidine derivatives have been synthesized and their structures were confirmed by IR, 1H NMR and mass spectral data. All these synthesized compounds were tested in vitro for their antimicrobial potential against Gram positive, Gram negative strains of bacteria as well as fungal strains in N, N-dimethyl formamide and dimethyl sulfoxide.
Numerical Heat Transfer in a Rectangular Channel with Mounted Obstacle
Authors: Gareh Salim
Published: December 2022

The fully-incompressible, viscous and stationary Navier–Stokes equations are solved for the laminar flow over an obstacle placed on the lower of a channel. The Reynolds number is varied from 100 to 400. In all cases studied the flow field proves to be steady. Several distinct flow features are identified: a horseshoe vortex system, inward bending flow at the side walls of the obstacle, a horizontal vortex at the downstream lower-half of the obstacle and a downstream wake containing two counter-rotating vortices. The shape and size of these flow features are mainly dominated by the Reynolds number. For higher Reynolds numbers, both the horseshoe vortex and the wake region extend over a significantly larger area. The correlation of the position of the separation and attachment point with the Reynolds number has been calculated. A detailed analysis is carried out to investigate flow pattern and Nusselt number.
Spin Waves in One Dimensional Magnetic Material
Authors: Wijesinhe H.S. , Wijewardena Gamalath K A I L
Published: December 2022

Using Heisenberg model, the equations of motion for the dynamic properties of spin waves in three dimensions were obtained and solved analytically up to an exponential operator representation. Second order Suzuki Trotter decomposition method with evolution operator solution was applied to obtain the numerical solutions by making it closer to real spin systems. Computer based simulations on systems in micro canonical ensembles in constant-energy states were used to check the applicability of this model for one dimensional lattice by investigating the occurrence, temperature dependence and spin-spin interaction dependence of the spin waves. A visualization technique was used to show the existence of many spin wave components below the Curie temperature of the system. In the magnon dispersion curves all or most of the spin wave components could be recognized as peaks in the dynamic structure factor. Energy conservation of the algorithm is also shown.
Development and Validation of Spectrophotometric Methods for the Quantification of Solifenacin Succinate: Application to Tablet Dosage Forms
Authors: Seshamamba Burla Sunitha Venkata , Satyanarayana Peruri Veera Venkata , Sekaran Chandra Bala
Published: December 2022

Four sensitive, precise and accurate spectrophotometric methods for the estimation of solifenacin succinate (SFS) have been developed. Method A describes the interaction of SFS with potassium permanganate in alkaline medium to give green colored manganate ion with absorption maxima at 610 nm. Methods B and C are based on the formation of ternary complexes of SFS with, copper (II)/eosin (method B) and ammonium molybdate/ammonium thiocyanate (method C), respectively which are extracted into chloroform and have absorption maxima at 545 nm (method B) and 465 nm (method C). Method D was based on the formation of yellow colored ion-pair complex between bromocresol green and SFS in dichloromethane medium with absorption maxima at 415 nm. Regression analysis of Beer's law plot showed good correlation in the concentration range of 5-50, 2.5-50, 10-100 and 2-20 μg/mL for methods A, B, C and D, respectively. Different variables affecting the reaction were studied and optimized. The proposed methods were applied successfully for the analysis of SFS in tablets dosage forms. No interference was observed from common pharmaceutical excipients.
Vertical Fall of a Body under Free Motion
Authors: Pluta Zdzisław , Hryniewicz Tadeusz
Published: December 2022

The paper aims at the kinetics of a body under free fall, especially free body motion, the motion occurring in the Earth environs space, that is in the range of the gravity action. A new adequate theory of such a motion, opening new not known kinetic magnitudes, has been elaborated. This theory has its source, which is the dependence of the way length on time. That is the way characteristics created in this work. The worked out theory has been verified by experiment, referred to two different realities. One of them was the body motion in the air environment of the Earth environs space, with the second one occurring in a determined machining space-time. The adequate earth acceleration/gravity has been calculated taking advantage of the theory elaborated; and its value, as indicated, is equal 3.85 m·s-2. Two kinds of accelerations have been separated: inertial and gravitational. The relations occurring between their values on the neighbouring potential fields, unstable, and stable, have been discovered. That discovery indicates on the existence of quantum nature of gravitation
Infrared Spectral Analysis of Waste Pet Samples
Authors: Vijayakumar S. , Rajakumar P.R.
Published: December 2022

There are fifteen waste PET bottles and a commercial grade ABS was collected from local supplier of Chidambaram town. The ABS was used to study the mechanical properties of PET blend composites. This study was performed by FT-IR spectroscopy. From the characteristics infrared stretching bands the mechanical properties of samples were discussed
Comparative Study of Anion Exchange Resins Purolite NRW-6000 and Duolite A-143 by Application Isotopic Technique
Authors: Singare P.U.
Published: December 2022

Isotopic tracer technique using 131I and 82Br was used to characterize Purolite NRW-6000 and Duolite A-143 anion exchange resins. The characterization study was done by carrying out iodide and bromide ion-isotopic exchange reactions taking place between the resin surface and the external labeled ionic solution. For the two resins it was observed that under identical experimental conditions, the values of specific reaction rate (min-1), amount of ion exchanged (mmol) and initial rate of ion exchange (mmol/min) were calculated to be lower for bromide ion-isotopic exchange reaction than that for iodide ion-isotopic exchange reaction. Also during both the ion-isotopic exchange reactions, under identical experimental conditions for the two resins, the values of specific reaction rate increases with increase in ionic concentration and was observed to decrease with rise in temperature. For a constant temperature of 35.0 °C, as the concentration of labeled bromide ion solution increases from 0.001 mol/L to 0.004 mol/L, the percentage of bromide ions exchanged increases from 67.80% to 72.76% using Purolite NRW-6000 resin and from 42.54% to 50.45% using Duolite A-143 resin. However when the temperature was raised from 30.0 °C to 45.0 °C by keeping the concentration of labeled bromide ion solution constant at 0.002 mol/L, the percentage of bromide ions exchanged decreases from 70.68 % to 67.32 % using Purolite NRW-6000 resin and from 47.50% to 42.25% using Duolite A-143 resin. From the results it appears that Purolite NRW-6000 resins show superior performance over Duolite A-143 resins under identical experimental conditions. It is expected that the present isotopic tracer technique can be applied further as an efficient nondestructive technique in characterization of various ion exchange resins so as to bring about their efficient industrial applications.
Synthesis and Characterization of 1,3,5-Trisubstituted Pyrazoline Derivatives by Ultrasonic Irradiation Method and Evaluation of its Antibacterial Activity
Authors: Raguraman A. , Santhi N.
Published: December 2022

A series of novel 1,3,5-trisubstituted pyrazoline derivatives (P1-P10) have been synthesized by the reaction of substituted chalcones (C1-C10) with 4-hydroxybenzhydrazide. The starting material, chalcones were prepared by claisen Schmidt condensation of 4-methylacetophenone with substituted aldehydes in the presence of sodium hydroxide in ethanol. 4-hydroxybenzhydrazide was synthesized by condensing methyl 4-hydroxybenzoate with hydrazine hydrate. The cycloaddition of chalcones with 4-hydroxybenzhydrazide gives 1, 3, 5-trisubstituted pyrazoline derivatives. The structures of synthesized derivatives were confirmed by IR, 1HNMR and 13C NMR spectrum. The synthesized compounds were screened for their antibacterial and antifungal activity.
Isolation of Compounds from Sargassum wightii  by GCMS and the Molecular Docking against Anti-Inflammatory Marker COX2
Authors: Balachandran P. , Parthasarathy Varadarajan , Ajay Kumar T.V.
Published: December 2022

The study focused on the molecular docking of GC-MS isolated compounds from the Sargassum wightii against inflammatory marker Cycloxigenase-2 (COX2). Seven compounds isolated by GC-MS were tested for their anti-inflammatory action using insilico analysis. The crystal structure obtained from the protein data bank was docked against seven compounds and the glide score as well as glide energy were determined using Schrödinger Maestro software (version 2013.1). The results of molecular docking showed that out of the seven bioactive compounds tested, methyl salicylate, benzoic acid, 2-hydroxy-,ethyl ester, diethyl phthalate, hexadecanoic acid, ethyl ester and (E) -9-octadecenoic acid ethyl ester were effectively inhibited the COX2 protein. The ADME properties of the compounds analyzed using Qikprop version 3.6 software of Schrodinger suite and the results showed that all the compounds were biologically active and the scores were within the acceptable range. This study revealed that the possibility of using these compounds against COX2 to treat inflammation.
Synthesis and Characterization of some New Schiff Bases of 2-Oxonaphtho[2,1-b][1,4]Oxazine
Authors: Chovatiya Pankaj , Mehta Charmy , Senjani Hardik , Shah Anamik , Joshi Hitendra S.
Published: December 2022

The literature review reveal that [1,4]-oxazine derivatives represent one of the most active classes of compounds possessing wide spectrum of biodynamic activities and use as potent therapeutic agents. In the present work, a series of Schiff base of 2-(2,3-dihydro-2-oxonaphtho[2,1-b][1,4]oxazin-1-yl)acetohydrazide, 5a-5j has been synthesized using 1-aminonaphthalen-2-ol. Various aromatic aldehyde were react with carbohydrazide 4 in the presence of acid to produce the 2-oxonaphtho[2,1-b][1,4]oxazin Schiff base derivatives with good yields. All synthesized compounds were characterized by IR, NMR and Mass spectrometry analysis.
Natural Radioactivity in Selected Soil Samples from the Archaeological of Ur City in Dhi-Qar Province, Iraq
Authors: Al-Alawy Iman Tarik , Salim Monar Deya
Published: December 2022

The specific activity of natural radionuclides in 24 soil samples collected from antiquities area of Ur city in Dhi-Qar province (31.0459863N, 46.2534257E) in southern Iraq have been studied and evaluated. Experimental results were obtained by using a Gamma ray spectrometer analysis system consists of a scintillation detector Sodium Iodide activated by Thallium NaI(Tl) of (3"×3") crystal dimension at the laboratory of radiation detection and measurement in Science Collage, University of Kufa. The spectrometer has been calibrated for energy by acquiring a spectrum from four standard sources of gamma radiations supplied by spectrum techniques (LLC). The measuring time of all soil samples is 18000 seconds; it was found that, the soil specific activity ranges from 29.93±2.97 to 9.99±2.56Bq/kg for 238U, from 25.66±2.55 to 7.77±2.24Bq/kg for 232Th and from 397.38±12.06 to 215.75±8.91Bq/kg for 40K, with mean values of 17.9±3.02Bq/kg, 13.66±2.41Bq/kg and 314.62±11.3Bq/kg, respectively. The results have been compared with the acceptable data of the worldwide literatures. In order to evaluate the radiological hazard of the natural radioactivity, the radium equivalent activity (Raeq), the gamma absorbed dose rate (AD), the annual effective dose rate and the both (external and internal) hazard index have been calculated and compared with the acceptable values of the worldwide average (UNSCEAR 2000).
Acid-Promoted Synthesis of Imidazolyl-Pyrazole Derivatives via a Multicomponent Reaction Using Ultra Sound Irradiation
Authors: Viradiya Denish J. , Kotadiya Vipul C. , Kakadiya Rajesh , Shah Anamik
Published: December 2022

Some new imidazolyl pyrazole derivatives have been synthesized using benzil, ammonium acetate, and heterocyclic aldehyde in ethanol and acetic acid under ultra sound irradiation. The obtained products using this approach are having high purity and good in yield. By conducting the reactions in ethanol, the solid products were precipitated out and could be isolated simply by filtration. The synthesized compounds were characterized by various analytical techniques such as 1H and 13C NMR and further supported by mass spectroscopy.
Simple Binary Prediction of Daily Storm-Level Geomagnetic Activity with Solar Winds and Potential Relevance for Cerebral Function
Authors: Caswell Joseph M. , Rouleau Nicolas
Published: December 2022

A number of previous studies have examined various statistical methods for the prediction of geomagnetic activity, particularly based on predictor input of solar wind variables. However, investigation of the potential for a simple binary prediction system based on either “quiet” or storm-level activity of the planetary magnetic field has been severely lacking. The goals of the current analyses were to identify potential space weather models for the accurate prediction of geomagnetic storm events. Furthermore, while the deleterious or negative effects of increases in geomagnetic activity on a range of terrestrial systems have been focused on in the past, theoretical perspectives on the potential benefits of significantly increased geomagnetic perturbations are considered
Synthesis, in Silico Molecular Docking Studies and Antibacterial Activity of 4-(4-Hydrazinylbenzyl)-1,3-Oxazolidin-2-One against DNA Gyrase Enzyme
Authors: Rosy P. Jacquline , Kalyanasundaram S. , Santhanalakshmi K. , Muthukumar S.
Published: December 2022

The molecular docking and antimicrobial activity studies of synthesized 4-(4-hydrazinylbenzyl)-1,3-oxazolidin-2-one were performed, in order to provide insights into the mechanism of action of potential antimicrobial drugs for resistant microorganisms. antimicrobial activity of compounds was investigated in vitro under aseptic conditions, using the disk diffusion method, against various gram positive and gram negative pathogenic microorganisms such as Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli, Bacillus substilis and Staphylococcus aureus. Molecular docking was performed to study the binding activity of synthesized hydrazide onto the active site of DNA Gyrase Protein in an effort to increase the understanding of the action and resistance of synthesized hydrazide in this bacterium.
“Snake”: One more Terramorphic Entity of the Hypothetical Venus Fauna
Authors: Ksanfomality Leonid
Published: December 2022

During the years that passed since the time of TV experiments employing VENERA landers (1975 and 1982), no similar experiments or missions to Venus have been performed. Analysis of treated once gain VENERA-13 and VENERA-14 panoramic images revealed (among other hypothetic living entities) a 'snake' object about 40 cm in size possessing apparent terramorphic features. The snake’s body stands out with its honeycomb, spotty surface against the stone plates close by. The ‘snake’ can be included into the list of the most significant findings of the hypothetical Venusian fauna. Apart from that, of interest is a ‘dove’ object, although details of its structure cannot be discerned. The snake’s body show slow movements, which is another evidence of the Venusian fauna’s very slow style of activity, which appears to be associated with its energy constraints or, and that is more likely, with the properties of an internal medium of its body. The terramorphic features of the fauna, if they are confirmed, may point out at outstandingly important and yet undiscovered general laws of the animated nature.
Kinetics of Oxidation of Amino Acids by a Newly Synthesized Oxidant, N-Chloropyrazinamide in Aqueous Acetic Acid Medium
Authors: Vaijayanthi S. Parimala , Mathiyalagan N.
Published: December 2022

The kinetics of oxidation of amino acids namely, alanine, glycine, leucine, phenyl alanine and valine by N-chloropyrazinamide (NCPZA) in aqueous acetic acid medium in the presence of hydrochloric acid have been investigated. The observed rate of oxidation is first order in [NCPZA], [H+] and [Clˉ]. The order with respect to [amino acid] is zero. The rate of oxidation increases with increase in the percentage of acetic acid. The reaction rate increases slightly with increase in ionic strength, while retards with addition of pyrazinamide. Arrhenius and thermodynamic activation parameters have been evaluated from Arrhenius plot by studying the reaction at different temperatures. A most probable reaction mechanism has been proposed and an appropriate rate law is deduced toaccount for the observed kinetic data.
Study of Uni-Univalent H+/K+ and Uni-Bivalent H+/Mg2+ Ion Exchange Reactions Using Nuclear Grade Resin Indion-223
Authors: Singare Pravin U. , Mohammed Akmal L. Khan , Dixit N.N.
Published: December 2022

In the present paper the uni-univalent and uni-bivalent ion exchange reactions were investigated using nuclear grade anion exchange resin Indion-223 in H+ form. For both H+/K+ uni-univalet ion exchange reactions and H+/Mg2+ uni-bivalet ion exchange reactions, the equilibrium constant K values increases from 0.01710 to 0.02374 and from 0.000177 to 0.000333 respectively as the reaction temperature rises from 35.0 °C to 45.0 °C. The increase in K values with temperature suggest endothermic ion exchange reactions having the enthalpy change values of 22.72 and 51.46 kJ/ mol respectively. The results of such studies will help in selection of suitable ion exchange resins in order to bring about efficient separation of different ionic species present in the waste water effluents released from nuclear as well as chemical process industries.
Synthesis and Antifungal Evaluation of Quaternary Ammonium Salts Derivatives of Dialkylaminoethyl Methacrylate Bearing 1,3,4-Oxadiazoles Moieties
Authors: Ould Kada Zahra , Benaissa Tahar , Hamini-Kadar Nisserine , Daoudi Sofiane
Published: December 2022

Starting from lauric acid two novel quaternary ammonium salts containing 1,3,4-Oxadiazoles nucleus derivative from N,N-Diethylaminoethyl Methacrylate (DEAEMA) and N,N-Dimethylaminoethyl Methacrylate (DMAEMA) was successfully synthesized and characterized by IR, 1H and 13C NMR, All the synthesized compounds were evaluated for their preliminary in vitro antifungal activity against three fungal strains such as Fusarium oxysporum, Fusarium commune and Fusarium rodelens. The synthesized compounds showed promising antifungal potential against the phytopathogenic test fungi.
Effect of Concentration of Negative Ion and Temperature of both Ions on Amplitude and Width for Non-Thermal Plasma
Authors: Chattopadhyay Sankar
Published: December 2022

In an unbounded, collisionless and unmagnetized plasma consisting of positive and negative ions together with non-thermal electrons, first and second order amplitudes and widths of the ion-acoustic solitary waves are discussed here properly along with the effect of the concentration of negative ion and temperature of both positive and negative ions.
Studies on Sediment Physico-Chemical Properties of the Ulhas River Flowing along Dombivli City near Mumbai
Authors: Jadhav Amol M. , Singare Pravin U.
Published: December 2022

Ulhas River which is one of the most polluted rivers of Mumbai receives heavy pollution load from the nearby Dombivali industrial belt. Previous studies reported along the Dombivali industrial belt has indicated that the pollution level is so much alarming that it has created threat to nearby residential areas and also to the Ulhas River flowing in the outskirts of the Dombivali City. It is feared that the toxic chemicals present in the industrial waste might affect the sediment ecosystem of the river. Hence this has provoked us to carry the systematic and detailed study of physico chemical properties of the sediment samples collected along the Ulhas River. The study was done during the year 2012 and 2013, at the sites where the industrial discharge from Dombivli industrial belt Phase I and Phase II joins the Ulhas River. The study was performed to understand the physico chemical properties such as pH, alkalinity, chloride and phosphates. Results of the study reveal that there is an urgent requirement for systematic and regular monitoring of pollution level along the Ulhas River which will further help in improving the industrial waste treatment procedure adopted, along the Dombivli industrial belt. It is expected that such scientific studies will be useful to determine the extent of pollution control measures required in order to avoid long term irreparable damage to the Ulhas River ecosystem.
The Cancer Cell Plasma Membrane Potentials as Energetic Equivalents to Astrophysical Properties
Authors: Persinger Michael A. , Lafrenie Robert M.
Published: December 2022

The primary physical and chemical parameters that define the hypopolarized plasma cell membrane of malignant (cancer) cells compared to non-malignant cells reflect universal characteristics. The median value for the resting membrane potential is the constant for the Nernst equation without reference to discrepancies in ion concentrations and is identical to Boltzmann energies at 37 °C. The threshold energy defining space-time converges with access to entropic processes that are reflected in the morphology of cancer cells and tumors. Slowing of growth in cancer cell lines but not normal cells following exposure to weak (~1 to 10 μT) patterned magnetic fields occurs when the energy induced within the cell corresponds to the energy equivalent of the hypopolarized membrane potential. The optimal temporal parameters for the efficacy of these fields can be derived from Hubble‟s parameter and the transform function for “noise” or “random” patterns within the system. Quantitative solutions and experimental data indicate that the cancer cell may be dominated by entropic process that can be attenuated or blocked by temporally-structured applied magnetic fields whose intensity matches the increment of energy associated with this threshold.
Adequate Theory of Oscillator: A Prelude to Verification of Classical Mechanics, Part 1
Authors: Pluta Zdzisław , Hryniewicz Tadeusz
Published: December 2022

In the paper, the adequate theory of oscillator is presented, being a sort of prelude to verification of the classical theory of mechanics. The developed theory is based on properly understood the notion of energy, on quantum value changes of its determined measures (potentials), as well as of such change stypes of sites of the total energetic states which present the essence of the true principle of energy conservation. General characteristics of classical mechanics is presented by exemplification of artifacts of classical theory of oscillator, energetic aspects of its motion, kinetics of the body in harmonic motion, and finely a new adequate theory of oscillator. This is the first part of the theory
Biodegradable Sansevieria cylindrica Leaves Fiber/Tamarind Fruit Fiber Based Polymer Hybrid Composites on Characterization
Authors: Reddy G. , Kumar M. Ashok , Jayaramudu Jarugala
Published: December 2022

This paper deals with the preparation and characterization of epoxy tamarind fruit (Tf) and Sansevieria cylindrica (Sc) hybrid composites containing fiber 0:20, 5:15, 10:10, 15:5 and 20:0 of (Tf:Sc) combinations loading. Sansevieria cylindrica leaves were used in this paper for extracting fiber out of it and in the similar manner ripen Tamarind fruit was used to extract fiber. Two different fibers viz. tamarind fruit/ Sansevieria cylindrica fibers were loaded into the epoxy system to develop the hybrid composites. The tensile and flexural properties of the resulting 20 wt. % loading of Tf/Sc/epoxy hybrid composites were examined. The resulting hybrid composites of 20 wt. % Tf/Sc with varying combinations exhibit the optimum improvement of mechanical properties and dielectric strength. 2 °C rise in decomposition temperature and 5 °C rise glass transition temperature were observed from the TGA and DSC thermal analysis. The fractured cross sections of flexural samples were assessed their performance as a function of fiber loading of Tf/Sc/epoxy hybrid composites by SEM analysis.
Development of Method for Extractive Spectrophotometric Determination of Cu(II) with 2-Hydroxy-1-Naphthalene Carboxaldehyde Phenyl Hydrazone as an Analytical Reagent
Authors: Sonawane Ratnamala P. , Lokhande R.S. , Chavan Utkarsha M.
Published: December 2022

A spectrophotometric method has been developed for the determination of Cu(II) using 2-Hydroxy-1-Naphthalene carboxaldehyde phenyl hydrazone as an extractive reagent. The reagent forms a coloured complex, which has been quantitatively extracted into n-butanol at pH 9.2. The method obeys Beer’s law over arrange from 1 to 10 ppm. The Molar absorptivity and Sandell’s sensitivity were 0.97 × 104 L mol-1cm-1 and 0.26 µg·cm-2 respectively. The proposed method is very sensitive and selective. The method has been successfully applied to synthetic and commercial samples.
Ising Model Phase Transition Calculation for Ferro-Paramagnetic Lattice
Authors: Khudier Dhia`a K. , Fawaz Nabeil I.
Published: December 2022

The position of the phase transition in the two dimensional Ising model were determined byusing Monte Carlo simulation in a quadratic for area of variable length with external magnetic fieldswitched off (B = 0). The magnetization (M) per site (µ), magnetic susceptibility (x) of aferromagnetic and paramagnetic materials were calculated as a function of temperature T for(20×20,40×40,60×60), (80×80,120×120,200×200) spin lattice interactions. Nearest neighborinteraction is assumed (i.e. each spin has 4 neighbors); uses periodic boundary conditions. The Curietemperature (Tc = 2.27 J/kB ) is determined by measuring the magnetic susceptibility at which theferromagnetic and paramagnetic undergoes a phase change from order to disorder. There is thus aphase transition defined by the Curie temperature. The Monte Carlo method were used to check theseresults and to confirm the phase transition. The data are analyzed using the Curie-Weiss law whichcontains the Curie temperature as a parameter.
Selected Parameters of Water Quality of the Swimming Pools Port in Szczecin
Authors: Daniszewski Piotr , Draszawka-Bołzan Beata
Published: December 2022

To estimate differentiation of water chemistry in reservoirs of swimming pools port in Szczecin, in time of 2004 - 2008. In arbitrary appointed times 5 physical and chemical indicators of water quality were determined to evaluate general status and water condition - temperature, pH, COD-Cr, BOD5, Clˉ.
Advanced Patented Protective Nanomaterials and Coatings
Authors: Figovsky Oleg L. , Beilin D. , Leykin A.
Published: December 2022

Review of the advanced patents in the field of corrosion resistant coatings and composite polymer materials by company Polymate LTD.-INRC (Israel) and its employees. The review includes patents used by the industry of several countries of Europe, USA, Canada and Asia.
Thermodynamic and Equilibrium Studies of Dextrin Adsorption on Modified Coal
Authors: Nkechi Okoji Josephine , Okolie Justus Ifeanyi , Okorocha Nnaemeka John
Published: December 2022

Dextrin produced from cassava was investigated for adsorption on coal during processing. Aluminium ion (Al3+) and nitrate ion (NO3-) were employed for adsorption test to improve coal surfaces. The effect of initial concentration, adsorbent dose and pH on dextrin adsorption onto modified coal surface was investigated. Studies concerning the adsorption equilibrium and thermodynamics are presented; the equilibrium data was modelled using Langmuir and Freundlich isotherms. The adsorption equilibrium data was well explained by Freundlich isotherm. The percentage removal was found to be 93.75% and 90.75% at adsorbent dose of 0.2 g for both aluminium sulphate coal bituminous (ACB) and aluminium sulphate coal lignite (ACL) respectively. There was a rapid increase in adsorption of dextrin from low pH of 2 to about pH of 4 with a plateau region from pH 4 to pH 6. Adsorption capacity of 61.25 mg/g and 55.00 mg/g was achieved at initial concentration of 200 mg/L for ACB and ACL respectively. For a better interpretation, the nature of the adsorption of dextrin on the prepared coal samples was predicted from thermodynamic point of view by estimating the thermodynamic parameters. The determination of basic thermodynamic parameters: enthalpy of adsorption, Gibb’s free energy and entropy of adsorption are important. The negative value of ∆Gad indicates the feasibility and spontaneity of the adsorption process and the magnitude is an indication of the involvement of salt link, electrostatic interaction and hydrophobic bonding in the adsorption.
Utilization of Wallostonite/Quasi Isotropic S2 Glass Fiber Doped in to Epoxy on Mechanical and Thermal Properties
Authors: Reddy D. Madhava , Rakesh C.H. , Karthikeyan N. , Kumar M. Ashok , Nagaraju G.
Published: December 2022

Study focused on the performance of injection moulded short Wallostonite filler and chopped glass fiber reinforced hybrid epoxy composites. Results showed that hybridization of glass fiber and Wallostonite was found to be comparable to that of epoxy glass fiber composites. Analysis of fiber length distribution in the composite and fracture surface was performed to study fiber breakage fracture mechanism. The simultaneous compounding of epoxy with two fillers was done to obtain a hybrid composite. The mechanical properties of hybrid, injection molded, chopped glass fiber/ Wallostonite/epoxy composites have been investigated by considering the effect of hybridization by these two fillers. This system is expected to have considerable mechanical properties. It has been found that the tensile, flexural, and impact properties of the filled epoxy were higher than those of unfilled epoxy. The hybrid effects of the tensile strength and modulus were studied by the rule of hybrid mixtures (RoHM) using the values of single fiber composites.
Study of Molecular Flexibility Operated Mesomorphism
Authors: Jain B.B. , Patel R.B.
Published: December 2022

Homologous series RO-C6H4-CH=CH-COO-C6H4-CO-CH=CH-C6H4-OC14H29(P) of chalconyl novel derivatives have been synthesized and studied with a views to understand and establish the relation between molecular structure and the liquid crystal (LC) properties of thermotropic mesomorphs Series consists of thirteen homologues. Five homologues (C1 to C5) are nonliquid crystal (NLC) and the rest of the homologues (C6 to C18) are enantiotropically nematogenic without exhibition of smectic property. Transition temperatures and textures were determined by an optical polarizing microscope equipped with a heating stage (POM). Transition curves of a phase diagram (N-I and Cr-I/N) behaved in normal manner. N-I transition curve exhibited odd-even effect with negligible abnormality in its behaviour at the C14 homologue. Thermal stability for nematic is 99.75°C.The degree of mesomorphism vary minimum 19°C at the C6 homologue to maximum 28°C at the C8 homologue. Analytical and spectral data confirms the molecular structures of the novel homologues. Evaluated thermal data of present novel series are compared with other structurally similar homologous series. Textures of Nematic phase are threded or schlieren.