bluuebunny/crossref_metadata_2025 huggingface dataset:
Ecological sustainability and stability of quantitative signs in vetch (Vicia villosa) varieties
Authors: KOSEV VALENTIN , VASILEVA VILIANA
Published: December 2022

Ecological sustainability and stability by basic quantitative signs of winter vetch genotypes (Vicia villosa) has been assessed. The experiment was conducted in three environments in the central northern Bulgaria during 2014-16 cropping seasons. The following characteristics have been assessed: i) in the beginning of flowering stage â€“ above ground fresh weight (leaves + stems), root length, root fresh weight, nodule number per plant, nodule weight per plant ii) in the technical maturity of seeds stage - seed weight per plant. Analysis of variance showed highly significant differences for the GE (genotype-environment) interaction for most of the signs indicating the possibility of selection for stable entries. Suitable varieties in the direction of both, fresh biomass productivity and ecological plasticity were found. Some of them were considered suitable for growing in a wide range of environmental conditions.
Identification of genotypes possessing GA responsive reduced height genes in bread wheat (Triticum aestivum)
Authors: YADAV PRAVEEN K , JOSHI MONIKA A , YADAV RAJBIR , SINGH MANJEET
Published: December 2022

The present study was conducted during years 2017-18 and 2018-19 involving 60 wheat genotypes including advance lines and released varieties. Based on the coleoptile length, these were categorised for coleoptile length as short (2.5-4.5 cm), medium (4.6-6.5 cm) and long (6.6-9 cm) respectively. Small and medium coleoptile length genotypes had comparable plant height (100.07cm and 99.29 cm, respectively) whereas, longer coleoptile genotypes were in general taller (103.78cm) numerically and for each class, the speed of germination was almost similar.A set of linked SSRs markers was used to screen the genotypes for molecular characterization based on GA responsive genes. In wheat, longer coleoptile length with reduced height is primarily controlled by GA responsive reduced height genes like Rht8, Rht12 etc., therefore, the material was screened to identify genotypes possessing GA responsive reduced height genes with available molecular markers. Molecular screening for Rht genes revealed five Rht8 positive genotypes having longer coleoptile length and good seedling vigour. Thus, Rht8 genes had positive effect on coleoptile length and had no detrimental effect on root length of seedling and provided better field emergence in field. Hence, these genotypes can be used for the development of variety for dryland agriculture and underconservation agriculture practices.
PENERAPAN SAINS DALAM MANAJEMEN BERBASIS SEKOLAH DENGAN MENGGUNAKAN POHON ILMU SEBAGAI MEDIA DAN PROGRAM UNTUK MENINGKATKAN PEMBELAJARAN IPA
Authors: Nurchalis Mokoagow  , Sri Amelia Thalib  , Amaliya Ladju  , Abdul Rahmat  , Rusmin Husain
Published: December 2022

Rendahnya literasi sains di Indonesia memperlihatkan bahwa murid belum memahami konsep, proses, dan pengaplikasian pengetahuan sains dalam kehidupan. Hal tersebut dapat diatasi dengan penerapan alat peraga di dalam kegiatan pembelajaran (pohon Ilmu / literasi). Oleh karena itu, penelitian ini dilakukan dengan tujuan untuk mengetahui adanya kenaikan literasi sains murid dengan menerapkan media pohon Ilmu / literasi pada mata pelajaran IPA. Penelitian ini merupakan penelitian eksperimen dengan desain true experimental.. Hasil dari uji statistik memperlihatkan ada perbedaan signifikan antara kelompok kontrol dan eksperimen. Penelitian menyimpulkan literasi sains kelompok eksperimen dengan menerapkan media pohon Ilmu / literasi lebih unggul daripada literasi sains di kelompok kontrol dengan menerapkan media konvensional sehingga penerapan media pohon literasi ke dalam kegiatan pembelajaran dapat menaikkan literasi sains murid pada pelajaran IPA DiSekolah Dasar.
KREATIVITAS PEMBUATAN TEMPAT SAMPAH DAN TEMPAT BUKU DARI KARDUS BEKAS UNTUK PENGUATAN NILAI-NILAI KARAKTER SISWA DI KELAS 5A SDN 22 DUNGINGI
Authors: Puspita Lamalundu  , Sutasi Manggopa  , Srisusanty Srisusanty  , Abdul Rahmat  , Rusmin Husain
Published: December 2022

Pendidikan sangat berperan dalam meningkatkan pengetahuan, keterampilan, kreativitas, sikap dan nilainilai dalam masyarakat. Setiap individu dituntut untuk mampu berkarya, menciptakan karya yang berguna baik untuk dirinya sendiri maupun orang lain disekitarnya untuk mendorong hari depan yang lebih baik. Pendidikan karakter memiliki peran penting dalam pembentukan moral. Menurut Lickona (dalam Isnaini, 2016:36) karakter berkaitan dengan konsep moral, sikap moral, dan perilaku moral. Berdasarkan tiga komponen tersebut maka dapat disimpulkan bahwa karakter yang baik didukung oleh pengetahuan tentang kebaikan, keinginan untuk berbuat baik, serta melakukan perbuatan yang baik. Perkembangan kreativitas sangat erat kaitanya dengan perkembangan kognitif individu karena kreativitas merupakan perwujudan dari pekerjaan otak manusia. Oleh karena itu, guru perlu melakukan pembelajaran yang dapat meningkatkan hal tersebut. Penggunaan media barang bekas dapat dijadikan media pembelajaran bagi guru untuk siswa sebagai media pendorong/peningkatan kreativitas siswa di dalam pembelajaran yang efektif dan efisien. Penggunaan barang bekas dalam penelitian ini adalah sebagai media peningkatan kreativitas siswa kelas V A di SD Negeri 22 Dungingi.
«Romanpjäsen» Lidandet
Authors: Dalhoumi Mariam
Published: December 2022

I det självbiografiska verket Lidandet (al-Alam) tvingas den marockanske musikern och författaren Laarbi Batma (d. 1997) att konfrontera sin egen dödlighet som cancerdrabbad.
Jo svakere rettsstat, jo sterkere tradisjonell lov på Vestbredden
Authors: Tuastad Dag
Published: December 2022

En ny type autoritærisme har vokst fram på Vestbredden etter 2007 som har undermindert det formelle rettsvesenet. Dette bidrar til at innbyggere søker til den tradisjonelle lovsektoren for rettferdig konfliktløsing.
Michael C. Low, Imperial Mecca. Ottoman Arabia and the Indian Ocean Hajj. Columbia University Press, 2020
Authors: Bang Anne K.
Published: December 2022

Michael C. Low, Imperial Mecca. Ottoman Arabia and the Indian Ocean Hajj. Columbia University Press, 2020
Ahmed Kanna, Am´elie Le Renard og Neha Vora, Beyond Exception: New Interpretations of the Arabian Peninsula, Cornell University Press, 2020
Authors: Norbakk Mari
Published: December 2022

Ahmed Kanna, Am´elie Le Renard og Neha Vora, Beyond Exception: New Interpretations of the Arabian Peninsula, Cornell University Press, 2020
OBSERVATION ON THE FRUIT DEVELOPMENT, FRUIT RIPENING AND PREFERENCE OF RATS IN DAMAGING PINEAPPLE MD2 BASED ON HORMONAL FLOWER INDUCED DAYS AND PHENOLOGY
Authors: MOHD NOH ARIFF ATEED , SHUKOR MUHAMMAD IDRUS , OTHMAN MUHAMMAD FAIZ , KHALID NORSHAFIQAH , CHE RAZALI AYMAN , THEN KEK HOE , ZAINAL ABIDIN MOHD RIZUAN
Published: December 2022

A study was carried out to determine the preferences of rats in damaging pineapple MD2, based on hormonal induced days. Biologische Bundesantalt, Bundessortenamt and Chemische Industrie (BBCH) coding system, a phenology scale for all flowering plants, was used to describe the vegetative growth stage of MD2 pineapple in this study. The evaluation of MD2 phenology was carried out between 60 and 173 days after hormonal flower induction activity. Rat damage was studied at two growth stages, namely fruit development and fruit ripening of MD2 pineapple. The results showed that MD2 pineapple takes around 72 to 95 days to ripen from fruit development. The pineapple is best to be harvested around 140-145 days after hormonal flower induction activity or at BBCH scale 801-805. At this time, the pineapple turns from light green to yellowish green. Two species of rats, namely Rattus tiomanicus and Rattus argentiventer preferred matured fruits in between BBCH scales 800 to 805. Chemical control through rodenticide baiting campaign for rats needs to be done as early as 70-78 days after hormonal flower induction activity or before the BBCH scale 700 as best control measures. Keywords: Biologische Bundesantalt, Bundessortenamt and Chemische Industrie coding system, pineapple, rat damage.
Dosis, excesos y reacciones adversas del closantel en ovinos y caprinos en México
Authors: Mancilla Montelongo María Gabriela , Torres Acosta Juan Felipe de Jesús , Ayala Burgos Armín Javier
Published: December 2022

.
Systemic Lupus Erythematosus in Gynecology
Authors: Franjić Siniša
Published: December 2022

Systemic lupus erythematosus is a chronic autoimmune disease that can affect various organs and parts of the body, especially the skin, joints, blood, kidneys, and central nervous system. Systemic lupus erythematosus is not a contagious disease, it is an autoimmune disease in which the immune system loses the ability to distinguish foreign from the patient’s own tissues and cells. The immune system makes mistakes and produces, among other things, autoantibodies that recognize their own cells as foreign and attack them. The result is an autoimmune reaction that causes inflammation. Inflammation means that the affected part of the body becomes warm, red, swollen and sometimes painfully sensitive. If the signs of inflammation are long-lasting, as they may be in the case of systemic lupus erythematosus, tissue damage and its normal function may occur. Therefore, the goal of treatment of systemic lupus erythematosus is to alleviate inflammation. A number of hereditary risk factors along with various environmental factors are thought to be responsible for this impaired immune response. Systemic lupus erythematosus is known to be caused by a variety of factors, including hormonal imbalances during puberty, stress, and environmental factors such as sun exposure, viral infections, and medications.
Export-Import Misalignment and Gross Fixed Capital Formation in Nigeria
Authors: John John Ime , Udoka Christopher Obot , Okon Effiong Asuquo , Orok Akaniyene Billy
Published: December 2022

This study examines export-import misalignment and gross fixed capital formation in Nigeria. Three variables are used and myriad of control variables, spanning the period of 1981-2020. The model was tested with several econometrics and statistical instruments. The results from the findings indicates that, export-import misalignment has a negative and an insignificant impact on gross fixed capital formation, however, export and import impact gross fixed capital formation differently. There was a 30.3% threshold evidence as indicated in the F-statistics value in the model. We recommend that, the federal government of Nigeria should reprioritize her needs. They should spend more on capital expenditures as against the current trend of 68:32% allocations to recurrent and capital expenditures respectively. Efforts must be made to mobilize the desired level of gross national savings that could be big enough to attract foreign direct investments as FDI will help to complement our domestic savings. Government should work on her potentially exportable commodities. The proceeds should be utilized in the importation of needed technical tools and components. Basic infrastructures like good roads, electricity supply and security must be seen to be adequate. This will help to reduce the drudgeries currently being faced by manufacturers. Efforts should be geared towards a reduction in exchange rate distortion, volatility and general mismanagement. Policy formulators in Nigeria need to enact some investor friendly policies that will encourage, promote and attract more capital inflows (Be it official or private inflows) and provide a conducive and enabling environment for gross fixed capital formation to thrive. There is need to play down on speculative businesses and to invest into the real sectors of the economy. There is also the need to reduce the level of capital flight out of country. Inflows should be tied to specific, relevant and purposeful projects. This will help to create employment opportunities in the long run. Prudence and proper accountability should be the watchword in the management of accruals from official capital inflows and transfers. Production of petroleum products need be increased: Since the wealth of the nation is hinged on this mono-product. Lastly, macroeconomic projections should guide the overall level of expenditure etc.
Further Stability Results of the Functional Equation in Non-Archimedean Space
Authors: Sadani I.
Published: December 2022

In this paper, we investigate the generalized Hyers-Ulam stability of the following reciprocal functional equation in non-Archimedean space using a direct method.
Research Status, Hot Spots and Development Trends of Empty Chair Technology: Visual Analysis Based on Knowledge Graphs and Topic Model
Authors: Zhang Mengnan , Zhang Hong
Published: December 2022

In order to further understand the current status, hot spots and development trends of the “empty chair technique” in psychological counselling, this study pinpointed the “empty chair technique” from the advanced search on the Internet and retrieved 274 articles from 1953 to 2022. Using CiteSpace and the topic model, a visual analysis of the research on “empty chair technique” in the last sixty years in the context of psychological counseling was conducted. The aim is to provide a mapping and quantitative analysis of the current situation, hotspots, and development trends of research on empty chair technology in counselling in China, and to propose ideas for future research directions in order to provide theoretical references for the practice of empty chair technology in counselling in China.
The Relationship between Time Personality and Teachers’ Emotional Exhaustion: A Moderated Mediation Model
Authors: Leung Percy , Choo Dongwoo
Published: December 2022

In the highly interconnected and connected contemporary environment, work connectivity behavior has become an inevitable typical situation for most teachers. Individuals with different time personality traits not only differ in time management, time planning, and multi-tasking tendencies, but also have different time perceptions of the same physical time. However, how individuals with different time personalities affect emotional exhaustion in work connectivity behavior scenarios needs to be further explored. Based on conservation of resource (COR) theory, differences in time personality traits show different degrees of emotional exhaustion through individuals’ work connectivity behavior. Meanwhile, organizational citizenship behavior, as very important extra-role behavior, can positively influence organizational functioning and interpersonal interactions within the organization, and based on attribution theory, individuals with high levels of organizational citizenship behavior would perceive off-time work connectivity behavior as altruistic and pro-organizational behavior. Therefore, this study integrated two theoretical perspectives to explain the effect of time personality on emotional exhaustion, the mediation of work connectivity behavior and the moderating role of organizational citizenship behavior (helping behavior or civic morality dimensions), both of which play a role in predicting emotional exhaustion based on time personality. In this study, the analysis of the valid data obtained from 630 teachers revealed: (1) Time personality has a positive significant effect on emotional exhaustion. (2) Work connectivity behavior mediates the relationship between time personality and emotional exhaustion. (3) Two dimensions of organizational citizenship behavior, helping behavior and civic morality, inversely moderate the relationship between work connectivity behavior and emotional exhaustion and the mechanism by which time personality positively facilitates emotional exhaustion through the mediation of work connectivity behavior. What is more, the study discusses the findings on the effects of time personality on emotional exhaustion and suggests its practical implications.
A Study of Spatial Aesthetics in the Film The Sun Also Rises
Authors: Xiang Yuyao
Published: December 2022

The Sun Also Rises was released in 2007, directed by Jiang Wen, Zhou Yun, Chen Chong and other powerful actors. The film is not only wonderful content, but also twists and turns of the plot. The story runs from the 1950s to the 1970s and tells the story of the love dispute between Li Bukong and his crazy mother and his wife, as well as the fate of various characters such as Nanyang overseas Chinese teacher Liang and Nurse Lin. Director Jiang Wen broke the fixed narrative mode of the film and split the story together again, so that the space and time of the film have a wonderful visual perception impact. This paper will the film The Sun Also Rises the space aesthetics as the research object, the space aesthetics presented in the film, based on the film depends on the spatial image construction and shooting skills, in order to analyze and study the space aesthetics and the film of the value and significance.
Do Students with Different Genders Have a Different Perception of Temperature, Thermal Comfort, Learning and Clothing?
Authors: Yang Di
Published: December 2022

Workers of different genders have different demand for thermal comfort. If the thermal environment of the classroom is unsatisfactory, it may harm learning performance. Therefore, it is worth further exploring whether there is a perception difference between students of different genders in thermal comfort. Although differences in thermal comfort between different genders, ages and clothes have been found by many types of research recently, there are few experiments to research the influence of gender differences on thermal comfort among students in educational architecture. This paper aims to research whether there are differences in the perception of thermal comfort, clothing and temperature among students of different genders of UCL in the lecture theatre. The research objective is to obtain relevant data based on the combination of objective and subjective investigation, analyze the data with T-test and Correlation, and compare the data to research the differences and the reasons behind them. There is no gender difference in thermal comfort among students in the individual lecture theatre study, but there is a significant gender difference in the all lecture theatre study. In LT05b, no correlation was found between the clothing of different genders and thermal comfort, but a strong linear negative correlation was found between thermal preference and thermal comfort variables of the male group. There is no correlation between the clothing and thermal comfort of students in all the lecture theatre, while there is a strong negative correlation between thermal preference and thermal comfort. Finally, the conclusion of this study provides some data support for UCL to improve lecture theatre conditions (thermal environment). When the thermal environment of the lecture theatre satisfies the thermal comfort and effective learning needs of students, female students should be fully considered.
The Extent of Empathy and Helping Attitudes on Engagement in Clicktivism on Facebook
Authors: Bapitie Matthew , Carter Pelham
Published: December 2022

Clicktivism describes how users on social media support online campaigns. This growing activity is demonstrated on Facebook through its abundant features, including the ability to ‘like’ and ‘share’ share content with family and friends. Importantly factors that may predict the extent to which Clicktivism and online activism are engaged in require further exploration. This current research sought to add to the growing literature by investigating the predictive value of empathy and helping attitudes with engagement in Clicktivism on Facebook. A pre-pandemic UK University student sample of 118 females and 46 males participated in an online questionnaire. This questionnaire consisted of an adapted version of the Facebook Frequency and Use of Activities Scale (FFAS), the Adolescent Measure of Empathy and Sympathy (AMES), the Helping Attitudes Scale (HAS) and the Big Five Inventory (BFI-10). A multiple regression analysis revealed cognitive empathy and sympathy predict engagement in Clicktivism on Facebook. Previous expected predictors such as time spent online and level of Facebook use were interestingly not sufficient to significantly predict Clicktivism.
Adsorption and Equilibrium Studies on the Removal of Methyl Red from Aqueous Solution Using White Potato Peel Powder
Authors: Enenebeaku Conrad K. , Okorocha Nnaemeka J. , Enenebeaku Uchechi E. , Ukaga Ikechukwu C.
Published: December 2022

The potential of white potato peel powder for the removal of methyl red (MR) dye from aqueous solution was investigated. The adsorbent was characterized by FTIR and SEM analysis. Batch adsorption studies were conducted and various parameters such as contact time, adsorbent dosage, initial dye concentration, pH and temperature were studied to observe their effects in the dye adsorption process. The optimum conditions for the adsorption of MR onto the adsorbent (WPPP) was found to be contact (80 mins), pH (2) and temperature (303K) for an initial MR dye concentration of 50mg/l and adsorbent dose of 1.0g. The experimental equilibrium adsorption data of the (MR) dye fitted best and well to the Freundlich isotherm model. The maximum adsorption capacity was found to be 30.48mg/g for the adsorption of MR. The kinetic data conforms to the pseudo – second order kinetic model.
Binding of Sulfamerazine and Sulfamethazine to Bovine Serum Albumin and Nitrogen Purine Base Adenine: A Comparative Study
Authors: Rajendiran N. , Thulasidhasan J.
Published: December 2022

Quenching of bovine serum albumin (BSA) and DNA base (adenine) by sulfamerazine (SM) and sulfamethazine (SMT) was studied using UV-visible, fluorescence cyclic voltammetry and molecular docking methods. A strong fluorescence quenching reaction of SM and SMT to BSA/adenine was observed and the quenching mechanism was suggested as static. Both drugs can bind to BSA and adenine with stoichiometric ratio of 1:1 and the protein - drug complexes are stabilized mainly by hydrogen bonds and van der Waals interaction. Compared to SM, SMT contributes substantially higher binding efficiency with BSA/adenine. With addition of drug solution to the adenine/BSA, the oxidation and the reduction peaks shifted towards high and low potentials, respectively. Ro, J, r and E values in the BSA-drugs are higher than that of adenine – drug molecules suggest that binding of the sulfa drugs with BSA is higher than adenine –drug molecules. Docking method specify that bioactive site of sulfa drugs moiety, the aniline group is interacted with the BSA molecules.
Synthesis of Novel Highly Substituted Pyrimidines Bearing Furanyl Thiazole Nucleous
Authors: Kathrotiya Haresh G. , Naliapara Yogesh T.
Published: December 2022

A series of novel highly substituted pyrimidines bearing furanyl thiazole nucleous have been synthesized. In which reaction of guanidine nitrate with ketene dithioacetals 3c produced substituted pyrimidines 4d which further treated with various aromatic aldehydes to afford title compounds 5(a-t). The chemical structures of the synthesized compounds were elucidated by 1H NMR, 13C NMR, FT-IR, elemental analysis, and mass spectral data.
Π(G,x) Polynomial and Π(G) Index of Armchair Polyhex Nanotubes TUAC6[m,n]
Authors: Farahani Mohammad Reza
Published: December 2022

Let G be a simple connected graph with the vertex set V = V(G) and the edge set E = E(G), without loops and multiple edges. For counting qoc strips in G, Omega polynomial was introduced by Diudea and was defined as Ω(G,x) = ∑cm(G,c)xc where m(G,c) be number of qoc strips of length c in the graph G. Following Omega polynomial, the Sadhana polynomial was defined by Ashrafi et al as Sd(G,x) = ∑cm(G,c)x[E(G)]-c in this paper we compute the Pi polynomial Π(G,x) = ∑cm(G,c)x[E(G)]-c and Pi Index Π(G ) = ∑cc·m(G,c)([E(G)]-c) of an infinite class of “Armchair polyhex nanotubes TUAC6[m,n]”.
Adequate Theory of Vertical Motion of a Mass-Elastic System
Authors: Pluta Zdzisław , Hryniewicz Tadeusz
Published: December 2022

The paper covers an adequate theory on vertical motion of the mass-elastic system. This system is an oscillator with the motion being a free harmonic motion. The first extended link of the consideration presents a critical analysis of the existent knowledge referred to this subject. Then the energetic states of the oscillator have been determined. Next the force characteristics of the free harmonic motion of the oscillator are presented. A general source equation of the path/way length and the resulting detailed forms, signalizing extensive possibilities to build up the characteristics, have been presented. Finally the connections between the characteristics of real and simulative motions were derived. It should be added that this first mentioned motion is the subject of adequate description presented here. The simulated motion is referred to the existent classical theory which has been subjected under a critical consideration.
Synthesis, Thermal and Crystallographic Analysis of 1,1’-diylbis(2-Methyl-4-Phenylene)bis(2-Nitrobenzoate)Cyclohexane
Authors: Dhaduk Bhavin. B. , Patel Chirag. B. , Parsania Parsotam H.
Published: December 2022

The crystal structure of 1,1’-diylbis (2-methyl-4-phenylene) bis (2-nitrobenzoate) cyclohexane (NBM-2) has been determined by X-ray crystallographic technique. Single crystals were grown by slow evaporation technique. NBM-2 crystallized in the triclinic crystal lattice having space group P-1. Both the phenyl rings are perpendicular to the cyclohexane ring having chair conformation. NBM-2 showed both inter-and intramolecular interactions. The structure of NBM-2 has also been supported by FT-IR, 1HNMR, 13C NMR, MS techniques. The thermal behaviour of NBM-2 were studied by TGA and DSC techniques at heating rate of 10°C min-1 in nitrogen atmosphere. Thermal stability and kinetic parameters were determined according to Anderson-Freeman method and discussed.
New Kinetic Spectrophotometric Method for Determination of Folic Acid in Pharmaceutical Formulations
Authors: Khateeb Mouhammed , Elias Basheer , Al Rahal Fatema
Published: December 2022

A simple and sensitive kinetic spectrophotometric method has been developed for the determination of folic acid (FA) in bulk and pharmaceutical Formulations. The method is based on the oxidation of FA by Fe (III) in sulfuric acid medium. Fe (III) subsequently reduces to Fe (II) which is coupled with potassium ferricyanide to form Prussian blue. The reaction is followed spectrophotometrically by measuring the increase in absorbance at λmax 725 nm. The rate data and fixed time methods were adopted for constructing the calibration curves. The linearity range was found to be 1–20 μg mL-1 for each method. The correlation coefficient was 0.9978 and 0.9993, and LOD was found to be 0.91 and 0.09 μg mL-1 for rate data and fixed time methods, respectively. The proposed method has been successfully applied to the determination of FA in formulations with no interference from the excipients. Statical comparison of the results shows that there is no significant difference between the proposed and pharmacopoeial methods
Physicochemical Characteristics of Groundwater from Kumbakonam Taluk of Thanjavur District - Tamilnadu (India)
Authors: Kannan D. , Nedunchezhian S. , Mani Dr. N.
Published: December 2022

The aim of present study was to assess the quality of ground water from Kumbakonam region in Thanjavur district, and check its fitness for drinking and other purpose. An eight ground water samples were collected from various parts of Kumbakonam region. The physicochemical parameters such as calcium, magnesium, chloride was determined by titration method, sulphate, nitrate, nitrite were analyzed by spectrophotometric method, pH was determined by pH metric method and other parameters were analyzed by Indian standard method. Physicochemical parameter of ground water samples were compared with standard limits recommended by BIS. The comparative study of ground water to this region, all the collected water samples are not suitable for drinking purpose, because in this region ground water samples had excess of manganese, calcium, magnesium and iron content.
Antibacterial Screening of some Heterocyclic Compounds Containing Quinoline Nucleus
Authors: Baluja Shipra , Godvani Nilesh , Chanda Sumitra
Published: December 2022

In this work, some novel derivatives of Cyanopyridines and Isoxazoles were synthesized using Vilsmeier-Haack reagent and their structures were confirmed by FTIR, 1H NMR and mass spectroscopic methods. The antibacterial activities of these synthesized compounds were studied in DMSO and DMF by agar well diffusion method against some Gram positive and Gram negative bacteria. It is observed that activity depends upon three S: solvent, strain and structure.
The Tendencies and Timeline of the Solar Burst Type II Fragmented
Authors: Hamidi Zety Sharizat , Shariff N.N.M. , Monstein C.
Published: December 2022

We report the timeline of the solar radio burst Type II that formed but fragmented at certain point based on the eruption of the solar flare on 13th November 2012 at 2:04:20 UT. The active region AR 1613 is one of the most active region in 2012. It is well known that the magnetic energy in the solar corona is explosively released before converted into the thermal and kinetic energy in solar flares. In this work, the Compound Astronomical Low-frequency, Low-cost Instrument for Spectroscopy Transportable Observatories (CALLIISTO) system is used in obtaining a dynamic spectrum of solar radio burst data. There are eight active regions and this is the indicator that the Sun is currently active. Most the active regions radiate a Beta radiation. The active regions 1610, 1611 and 1614 are currently the largest sunspots on the visible solar disk. There is an increasing chance for an isolated M-Class solar flare event. It is also expected that there will be a chance of an M flare, especially from AR 1614 and 1610. Although these two observations (radio and X-rays) seem to be dominant on the observational analysis, we could not directly confirmed that this is the only possibility, and we need to consider other processes to explain in detailed the injection, energy loss and the mechanism of the acceleration of the particles. In conclusion, the percentage of energy of solar flare becomes more dominant rather than the acceleration of particles through the Coronal Mass Ejections (CMEs) and that will be the main reason why does the harmonic structure of type II burst is not formed. This event is one fine example of tendencies solar radio burst type III, which makes the harmonic structure of solar radio burst type II fragmented.
Fine Structure Signatures in Ground Flashes as a Source for HF Radiation
Authors: Edirisinghe Mahesh , Cooray Vernon
Published: December 2022

Lighting radiation fields below 10 MHz are of considerable interest since these frequencies correspond to the natural resonance of structures with dimensions of a few meters to tens of meters. In this paper we present the fine structure signatures of sub-microsecond range pulses appeared at the leader phase and after the return stroke in negative ground flashes which act as a source for HF radiations at 10 MHz, 5 MHz and 3 MHz observed in Sri Lanka, in the tropics. Of the total sub-microsecond range pulses analyzed, 298 were due to positive field changes and 228 were due to negative field changes. The average rise time of those pulses for both polarities is 127 ns and it was found to be varying from 110-160 ns. The peak amplitude is in the range of 0.65-2.19 V/m. For the total 526 pulses analyzed for this study, the FWHM was between 190-310 ns with an arithmetic mean of 238 ns. Signatures of these pulses are similar to the leader like electric field pulses which acted as a strong source for HF radiations at 10 MHz, 5 MHz and 3 MHz. The initiation process of pulses reported in this study could be similar to the initiation process of leader like pulses.
Tribological Behaviour of Periwinkle Shell Powder-Filled Recycled Polypropylene Composites
Authors: Onuoha Chukwudike
Published: December 2022

Polymer composites are increasingly replacing metals in structures such as gears, wheels, clutches, housings, bushings and other areas where tribology is of great importance. Various ways are used to improve the tribological behaviour of neat polymers, and the most familiar method is the incorporation of fibres/fillers in the polymer to produce composites. In this present research, the tribological behaviour of periwinkle shell powder-filled recycled polypropylene composite was studied. Injection moulding was used for the preparation of the composites and the impact strength, wear resistance and fatigue strength were examined. SEM was utilized to support the discussion of the results. The results showed that the incorporation of periwinkle shell powder into polypropylene improved the wear resistance and fatigue strength but showed no improvement in impact strength.
Nature of Inertia Forces
Authors: Baurov Yu. A.
Published: December 2022

The physical nature of inertia forces is shown on the base of theory of byuons, the theory of "life" of special unobservable discrete objects – byuons from which the surrounding physical space (dark matter) and the world of elementary particles are formed. The theory of byuons predicts a new non-gauge force of nature which explains of physical nature of inertia forces.
Spectrophotometric Method for the Determination of Copper (II) in Leafy Vegetable, Soil, Alloys and Pharmaceutical Samples Using 3-Methylthiophene-2-Carbaxaldehyde-3-Thiosemicarbazone (3-MTAT)
Authors: Reddy G. Sreenivasula , Reddy P. Raveendra
Published: December 2022

A highly sensitive spectrophotometric method has been developed for the determination of copper (II) using 3-methylthiophene-2-carbaxaldehyde-3-thilosemicarbazone (3-MTAT) as an analytical reagent. The 3-MTAT forms reddish brown species of copper (II) at a pH range of 5.0-7.0. The Cu (II)-3-MTAT complex shows maximum absorbance at 430 nm, with molar absorptivity and Sandell’s sensitivity being 1.6 x 104 L Mol-1 Cm-1 and 3.6 x 10-3 μg cm-2 respectively. The system obeys Beer’s law in the range of 0.35-3.53mg/L. The regression coefficient of the Beer’s law straight line is 0.338, and the correlation coefficient is 0.999. The detection limit of the method is 0.021 μg mL-1. Most of the common metal ions generally found associated with copper do not interfere. The repeatability of the method was checked by finding the relative standard deviation. The developed method has been successfully employed for the determination of copper (II) in leafy vegetable and pharmaceutical samples and this method was inter comparison of experimental values using AAS.
Mechanical Properties of Pineapple Leaf Powder Filled High Density Polyethylene
Authors: Eze Innocent Ochiagha , Igwe Isaac O. , Ogbobe Okoro , Anyanwu Emmanuel Enyioma , Nwachukwu Ikenna
Published: December 2022

The effects of pineapple leaf powder (PALP) on the mechanical properties of high density polyethylene (HDPE) composites were studied. HDPE and PALP composites were prepared by injection moulding technique. The filler (PALP) contents investigated were 2, 4, 6, 8, and 10 wt% for each formulation. Results of the mechanical tests carried out on the HDPE/PALP composites showed that the tensile strength, tensile modulus, flexural strength, abrasion resistance, and hardness of the composites increased with increases in filler content for all the filler contents investigated while the elongation at break (EB) for PALP/HDPE composites was found to decrease with increases in filler content for all the filler contents investigated. The tensile strength of PALP/HDPE composites was increased by 6.49% at 2 wt% filler content, and 30.39% at 10 wt% filler content. It was also observed, from the results, that the elongation at break of PALP/HDPE composites was decreased by 2.40% at 2 wt% filler content, and 10.24% at 10 wt% filler content. The present study has highlighted the utility of pineapple leaf powder (PALP) as reinforcing filler in HDPE compounding. Pineapple leave which is an agricultural waste has been shown to have potential as a cheap, more readily available and more environmentally friendly filler.
Surface Initiated ATRP: Synthesis and Characterization of Functional Polymers Grafted on Modified Cellulose Beads
Authors: Ashaduzzaman Md , Ishikura Kei , Sakata Masayo , Kunitake Masashi
Published: December 2022

Atom transfer radical polymerization (ATRP) was employed to synthesize novel polymer particles. The surface of porous polymeric cellulose beads was modified by sodium hydroxide, 2-chloromethyloxirane, ethylenediamine and 2-bromo-2-methylpropionyl bromide successively in order to activate the beads surface so that it can play an important role as an initiator for ATRP reaction. ATRP on the modified cellulose beads surface was carried out with styrene and sodium p-styrenesulphonate monomers in the presence of non aqueous and aqueous phases respectively. The polymer products on the substrate surface were characterized by elemental analysis (EA), attenuated total reflectance-infrared (ATR-IR) spectroscopy and carbon13 – nuclear magnetic resonance (13C-NMR).
Validation of UV Spectrophotometric and HPLC Methods for Quantitative Determination of Chlorpyrifos
Authors: Zalat O.A. , Elsayed Mohamed A. , Fayed M.S. , Abd El Megid M.K.
Published: December 2022

A specific and sensitive HPLC and UV spectrophotometric methodwere developed for determination and analysis of chlorpyrifos. Chromatographic separation was achieved on a 150 mm x 10 mm I.D. reversed phase column Zorbax SB C-18. usingdeionizedwater: acetonitrile in the ratio of 10:90 v/v respectively as mobile phase. The effluent was monitored at 290 and 230 nm. Two sharp peaks were obtained for the solvent and chlorpyrifos at 2.7 and 3.45 min respectively. UV spectrophotometric method was performed at 290 nm using Isopropanol as the solvent. Linear range was 0.025-3500 ppm (r2 = 0.9986 ±0.0009) for HPLC method and 2.229 to 200 ppm (r2 = 0.9988) for UV spectrophotometric method. Validation guidelines and statistical analysis showed that both the methods were precise, accurate, sensitive, and can be used for the routine quality control of chlorpyrifos in waste discharges
Quantitative Convergence between Physical-Chemical Constants of the Proton and the Properties of Water: Implications for Sequestered Magnetic Fields and a Universal Quantity
Authors: Persinger Michael A.
Published: December 2022

The ratio of the magnetic moment and charge of a proton when multiplied by the viscosity of water results in forces that when applied over the distance of O-H bonds provides quantum increments in the order of 10-20 J. Precise coefficients of this order of magnitude are consistent with the mechanisms associated with proton (H+) mobility and duration of the hydronium atom. When applied to aggregate properties of water that involve exclusion zones defined by boundaries containing marked proton density and coherent domains within which specific patterns of applied magnetic fields can be contained for protracted periods, these intrinsic properties suggest that the major features of the cell plasma membrane and living systems can be accommodated by proton movements within water. Water exposed in the dark to weak magnetic fields displayed a ~10 nm shift in peak wavelength as measured by a fluorescence spectrophotometer. Given the persistent emergence of 10-20 J as a functional unit of energy across the universe, the physical significance of the interaction between weak, temporally patterned magnetic fields and the organization of water within astronomical and abiogenic contexts may have been underestimated.
Chemical Constituents from Fadogia homblei De Wild (Rubiaceae)
Authors: Mohammed Abdelhafeez M.A. , Coombes Philip H. , Crouch Neil R. , Mulholland Dulcie A.
Published: December 2022

The total of fourteen known compounds was isolated from the fruits, leaf and stem of Fadogia homblei De Wild. (Rubiaceae) and identified as: a coumarin, 7-hydroxy-6-methoxy-2H-1-benzopyran-2-one (scopoletin) 1, two flavones; 3′,4′,5,7-tetrahydroxyflavone (luteolin) 2 and quercetin-3-O-β-D-galactoside 3, four lupane triterpenoids; lupeol 4, betulinic acid 5, 3β-dodecanoyllup-20(29)-en-28-al 6, lup-20(29)-en-3β-ylhexadecanoate 7, and two steroids; sitosterol 8, stigmasterol 9, a lignan 4,4′-dihydroxy-3,3′-dimethoxy-7,9′:7′,9-diepoxylignan ((-)-pinoresinol) 10, a phaeophytin A 11, an uracil 12, an oleanolic acid 13, and an ursolic acid 14. To our best knowledge, this is the first report for isolation of these compounds from this species. This finding is nevertheless significant as it is the first report of uracil from a plant source other than from various species of ferns.
Structural and Optical Properties of Thermally Oxidized Zirconium Dioxide Films
Authors: Sunke Venkataiah , Suda Uthanna
Published: December 2022

Zirconium oxide (ZrO2) thin films were grown by thermal oxidation of metallic zirconium films deposited by sputtering of zirconium target by DC magnetron sputtering technique. The metallic zirconium films were thermally oxidized in oxygen atmosphere at different temperatures in the range from 300°C to 500°C. The as-deposited and oxidized films were characterized for their chemical composition by energy dispersive X-ray analysis, structure by X-ray diffraction, chemical binding configuration with Fourier transform infrared spectroscopy and optical absorption using UV-Vis NIR spectrophotometer. Metallic zirconium film was polycrystalline in nature with hexagonal structured Zr. The zirconium films were transformed into monoclinic ZrO2 with polycrystalline in nature at oxidation temperature of 400°C. Crystallite size of the ZrO2 films increased from 78 nm to 108 nm with increase in the oxidation temperature form 400°C to 500°C. The optical band gap increased from 5.42 eV to 5.46 eV and refractive index decreased from 2.05 to 2.02 with increase of oxidation temperature from 400°C to 500°C.
Engine Enhancement Using Enriched Oxygen Inlet
Authors: Shivakumar S.P.
Published: December 2022

An internal combustion engine essentially requires a fuel which must have sufficient calorific value to produce enough power, and oxygen for the combustion of fuel. In normal vehicles fuel will be supplied from a fuel tank equipped with it. And oxygen will be taken from the atmospheric itself. Under normal conditions the percentage of oxygen present in atmospheric air will be around 21% of the total volume. Studies shows that by increasing the oxygen percentage in the inlet air increases engine performance and reduces emission produced by the engine.
One Pot, Solvent-Free Synthesis of Substituted 3,4-Dihydropyrimidin-2(1H)-Ones/Thiones under Microwave Irradiation (CEM) Using Reusable Nickel Nanoparticles
Authors: Vekariya Mayur K. , Vekariya Rajesh H. , Barot Nirav N. , Shaikh Tauhid A. , Kaur Harjinder , Shah Nisha K.
Published: December 2022

A library of 3,4-dihydropyrimidin-2(1H)-ones/thiones derivatives were synthesized via Biginelli condensation reaction of β-keto esters, aryl aldehydes and urea/thiourea under solvent-free conditions utilizing nickel nanoparticles under microwave irradiation (CEM Discover). The structures of the all compounds were elucidated with the aid of elemental analysis, IR, 1H-NMR and Mass spectral data. Nickel nanoparticles can be recovered and reused five times without loss of their efficiency. Short reaction time, high yield of products and simple workup procedure, solvent-free conditions and reusability of the catalyst are the superior features of this protocol.
Optical Dispersion Characterization of Sprayed Zn1-xMnxO Thin Films
Authors: Habubi Nadir F. , Chiad Sami Salmann , Oboudi Saad Farhan , Toma Ziad Abdulahad
Published: December 2022

Uniform and adherent Zn1-xMnxO films have been deposited by using spray pyrolysis technique on glass substrates. The optical properties and dispersion parameters of zinc oxide have been studied as a function of doping concentration with Mn. Changes in direct optical energy band gap of cobalt oxide films were confirmed after doping, the optical energy gap Eg increased from 3.13 eV for the undoped ZnO to 3.39 eV with increasing the doping concentration of Mn to 4%. The changes in dispersion parameters and Urbach tails were investigated. An increase in the doping concentration causes a decrease in the average oscillator strength. The single-oscillator parameter has been reported.
Characterization and Antibacterial Behavior of MgO-PEG Nanoparticles Synthesized via Co-Precipitation Method
Authors: Karthikeyan V. , Dhanapandian S , Manoharan C
Published: December 2022

A surfactant assisted precipitation method is employed for the preparation of nanostructured magnesium oxide with flake-like nanoparticles. The influence of surfactant on the crystallite size and morphology of MgO was studied using various parameters. The synthesized MgO nanomaterials were characterized by using FTIR, XRD, FE-SEM and EDAX analytical techniques in order to evaluate the formation, crystalline phase morphologies, microstructures and chemical compositions. The powder X-ray power diffraction (XRD) analysis revealed the average crystalline size of 15.34 nm with cubic structure. The crystallite size increased with increasing amount of PEGs. Field Emission Scanning Electron Microscopy (FFSEM) and Transmission Electron Microscopy (TEM) showed that the surfactant strongly affect the size and morphology of nanostructure. Fourier-transform infrared spectroscopy studies indicated the formation of MgO with the characteristic vibration mode of Mg-O. Further, the antibacterial effect of MgO nanoparticles evaluated against pathogenic bacteria by agar diffusion method showed that the nanoparticles have reasonable antibacterial activity against both gram positive (S.aureus) and gram negative (E.coli) pathogenic bacterial strains and retains potential application in pharmaceutical and biomedical industries.
Extensions Interdisciplinary Physics
Authors: Manolea Daniela
Published: December 2022

The study explores the interdisciplinary nature of Physics. Envisages feature of this open science, and finally focuses on illustrating the close relations that Physics maintains and develops the other sciences. It shows that Physics borrows its methods and language, biology, chemistry, technical disciplines, astronomy. Biology, chemistry, astronomy, technical disciplines, provide physics, mainly, the research subject. Mathematics provides physics methods and the language, taking itself from physics the research theme.
Is Time Inhomogeneous?
Authors: Sadatian Seyed Davood
Published: December 2022

In this article, we discuss probability of inhomogeneous time in high or low energy scale of physics. Consequently, the possibility was investigated of using theories such as varying speed of light (VSL) and fractal mathematics to build a framework within which answers can be found to some of standard cosmological problems and physics theories on the basis of time non-homogeneity.
The Doppler Factor and Quantum Electrodynamics Basics in Laser-Driven Light Sailing
Authors: Tambunga Gabriel James
Published: December 2022

Basic concepts in Quantum Electrodynamics (QED) and the doppler factor were applied to laser-driven light sailing, where this combination was not considered before. QED indicates that a reflection is an absorption and an emission of discreet energy, and the doppler factor indicates a change in velocity of a reflector would result in the reflector observing a change in wavelength from a source. Applying these concepts results in the reflectors available discrete energy states not being filled, after the reflector changes its velocity. Changes in the apparatus of the laser-driven light sail and changes in the current understanding of the transfer of momentum from light to matter for effective laser-driven light sailing are suggested.