bluuebunny/crossref_metadata_2025 huggingface dataset:
Study and Comparative Analysis of OFDM and UFMC Modulation Schemes
Authors: Vaigandla Karthik Kumar , Siluveru Mounika , Karne RadhaKrishna
Published: February 2023

In various areas, wireless systems are used. In order to allocate the available time and frequency resources, these wireless systems require flexible mechanisms. With 5G, transmission rates will be higher, latency will be lower and quality of service and channel capacity will be higher. The physical layer must be able to generate flexible waveforms to meet the above requirements. Currently, Orthogonal Frequency Division Multiplexing (OFDM) transmission does not support 5G communication. In the case of 4G/OFDM, there are many problems in terms of out of band emission, spectral efficiency, and peak to average power ratio (PAPR). An alternative transmission scheme Universal Filtered Multicarrier (UFMC) is introduced to address this problem. The paper compares OFDM with UFMC. The purpose of this paper is to discuss Spectral Density, Spectral Efficiency, Signal to Noise Ratio (SNR) and Bit Error Rate (BER). In comparison to OFDM, UFMC provides better performance.
Esmeralda Conde Ruiz: sensitive ears and insensitive infrastructures. Part II
Authors: Klipphahn-Karge Michael
Published: February 2023

From April to October 2022, the internationally renowned composer, conductor and artist Esmeralda Conde Ruiz (*1980/Spain, lives in the UK) was a guest at the Schaufler Lab@TU Dresden. Whilst on residency she worked with TU Dresden’s (TUD) scholars and scientists as well as experts from other institutions and researched ideas related to the Lab’s main topic of enquiry which is Artificial Intelligence as a Factor and Consequence of Social and Cultural Change. Our editor Michael Klipphahn-Karge, currently a fellow of the Schaufler Kolleg@TU Dresden himself and an art scholar, interviewed Conde Ruiz about her stay and plans during the residency in Dresden.
Policies for Building the Investment Climate in Increasing Investment in Indonesia
Authors:   Master of Law Student, Faculty of Law, University of Jember, Abrian Andika Kresna Firmanda ,   Master of Law Student, Faculty of Law, University of Jember, Suwandi Hary Agus ,   Master of Law Student, Faculty of Law, University of Jember
Published: February 2023

Investment has an important role, considering that a country needs investment, especially for developing countries. One of the investment problems in Indonesia is the issue of legal certainty. This problem arose both because of the disharmony of related legislation and the issue of synchronization. Even though the issue of legal certainty is something that is expected by every investor, this is because investment is related to the expected profit in the future. Therefore, it is necessary to have arrangements in terms of legislation, as well as services. The arrangement of services also needs to be accompanied by the arrangement of the legal system. Therefore the concept of an investment legal system must include the arrangement of investment law and related laws, such as labor law issues, licensing laws that encourage certainty and protection for the continuity of investment.
MANAGEMENT OF INSECT PEST IN RICE SEEDBED USING A NOVEL RECTANGULAR HAND NET (RHN) FOR INSECTICIDE FREE SEEDLINGS
Authors:   Bangladesh Rice Research Institute, Kabir M. M. M. , Hossain M. A. , Ali M. P. , Bari M. N. , Haque S. S. , Hossain S. T. , Datta J. ,   Bangladesh Rice Research Institute
Published: February 2023

Insect pest first attacks rice in seedbed generally 7-9 days after sprouted seed sowing. At this early sensitive stage, traditional sweep net (round hand net) is not suitable to collect insects because it injured tender rice seedlings and its insect catching efficiency is also lower than rectangular hand net. To alleviate this problem, developed a novel rectangular hand net and evaluated the efficacy for managing insect pest in rice seedbeds. Newly developed hand net consists of a rectangular frame that includes 4 mm GI wire, and the frame length and width 50 cm and 20 cm, respectively. It also consists of a plastic pipe that length 100 cm, radious 0.75 inch, and market available white colour mosquito net, which length from the frame is 80 cm. Methods of application is rapidly walking with RHN (Fig. 2) around the seedbed (model seedbed one-meter width and length depends on land condition). After sweeping full seedbed harmful insect has been destroyed and beneficial insect released back in the same field. RHN caught maximum number of major populations YSB, rice hispa, BPH, rice leaf folder, GH, etc., and remained under control. RHN caught beneficial insect (19.60 %) compare to harmful insect pest (80.39 %). In Aus season 2022, 20 m2 area BRRI dhan48, BRRI dhan98, BRRI dhan85 seedbed tenure caught insect pest (87.78 %) and natural enemy (12.22 %). Same year T. Aman season BRRI dhan76 and BRRI dhan52 seedbed period insect pest caught (71.18%) and natural enemy (28.82 %). Both seasons conducted this experiment at BRRI, Barishal Charbadna and Sagordi farm.
Modelo Flipped Classroom en el aprendizaje de las operaciones con fracciones en octavo año básico
Authors: Álava García Mirian Verónica , Mendoza Paladines Olinda Nataly , Loor Navia Eddy Alejandro
Published: February 2023

El presente Trabajo de investigación tiene como objetivo utilizar Flipped Classroom como modelo de enseñanza de operaciones con fracciones dirigida a estudiantes de octavo año básico, para lo cual una vez identificado el problema se plantea un marco teórico que permite investigar las dificultades de la enseñanza de este tipo de operaciones y los principales beneficios de la utilización de este modelo de enseñanza, para luego proponer un banco de enlaces de videos explicativos de las clases de matemáticas desarrollando las destrezas de operaciones con fracciones, los mismos que serán enviados por los docentes para que los estudiantes visualicen en sus casas y en clase poder poner en práctica lo aprendido en casa realizando las actividades propuestas en el texto de matemática, de esta manera mejorar el proceso de enseñanza aprendizaje convirtiendo el aula de clase en una aula invertida, en el que estudiante deberá ser responsable de su propio aprendizaje siendo el protagonista y el docente pasará a ser guía y orientador de ese aprendizaje, buscando las herramientas necesarias para la aplicación de este modelo de enseñanza, como videos y ejercicios en clase para que el estudiante logre un verdadero aprendizaje.
Plasmon effect on Pd/Au for optical sensing
Authors: M. Karoubi  , A. Akbarzadah
Published: February 2023

In this study, gold nanoislands thin films were fabricated by pulsed laser deposition (PLD) method on quartz substrates at different substrate temperatures of 25, 300, 450, and 600 °C. A thin (4-5 nm) Pd film, as hydrogen catalyst over-layer, was sputter deposited on Au films. PLD at 25 and 300 °C led to semi-continuous surface morphology consisting of very fine-grained aggregates, and at 450 and 600 °C to spherical Au NPs. UV-Vis spectrometry showed localized surface plasmon resonance (LSPR) absorption at 732, 606, 586, and 560 nm for room temperature (R.T.), 300, 450, and 600 °C, respectively. FESEM revealed that hydrogen (10%) exposure induces surface stress leading to Au nanoislands separation. UV-Vis spectrophotometry showed a spectral blue-shift for the LSPR peak attributed to the plasmon coupling effect. Results showed that at various hydrogen concentration of 0 to 10%, films deposited at R.T. provides the most LSPR shift. Overall, we showed that plasmon coupling of PLD derived gold thin films is a suitable tool for accurate detection of hydrogen gas.
Calculation of threshold current density and efficiency for multiple quantum wire of 〖Hg〗_(0.5) 〖Cd〗_(0.5) Te/〖Hg〗_(0.8) 〖Cd〗_(0.2) Te/CdTe laser
Authors: Mohammed Hamad Jassam  , Najim Hussein Najim
Published: February 2023

This study of semiconductor laser structure works on reducing the value of the threshold current density to improve the working conditions of the laser device. In this paper shown that the threshold current density  and Optical confinement factor Г depends on Barrier width (B), and Number of well (Nw). We found any increase in Barrier width and Number of well is enhanced important parameters of diode laser such as threshold current density and confinement factor that's clearly for (Nw=2, B=40 nm) then (Г=0.175, ), while for (Nw=2, B=60 nm), that give results are (Г=0.195, ). On the other hand when changing Nw=3, the results become for (B=40 nm and B=60 nm), as follows (Г=0.275,  and (Г=0.295,  respectively. This investigated contributed to calculating the efficiency and work of the laser device. We found the value of slope efficiency equal (45 %) and the external quantum efficiency (50%).
Study the length of inner bore of dipole lens and its optical and magnetic properties
Authors: R.Y. J.AL-Salih  , Hana Essa Jasim  , Hafsa Yakdan Ismael
Published: February 2023

In this research, several designs of innovative bipolar lenses were designed in terms of the geometry of the bipolar lens, in which the length of the inner bore of the designed lenses was changed in order to improve its performance. /m) and the study of its properties, that is, the investigation into the study of each marker included calculating it is axial magnetization as well as magnetic flux density using the finite element method (FEM) the magnetic and optical properties, where the effect of aberration on it (spherical and chromatic aberration) as well as the focal length was studied, where it was found that the best design is the lens when the bore length is (27 mm) in terms of less aberration and focal length.
MENJAGA HUBUNGAN KELUARGA JARAK JAUH MELALUI NEW MEDIA (STUDI PADA ANGGOTA KELUARGA YANG TINGGAL BERBEDA KOTA)
Authors: Arnold Surya Nugroho
Published: February 2023

The research entitled "maintaining long-distance family relationships through new media (study of family members who live in different cities)", aims to find out how a family maintains good relations in order to be able to communicate effectively even though they live in different cities. This research was conducted in Jakarta and its surroundings. The problem in this research is how a family member uses new media or their smartphone to call their family or not. The research method used is descriptive, using field study data collection techniques and interviews. The number of informants interviewed was 5 people, the interview technique used by the author was unstructured interviews. The definition of unstructured interviews is a method used to obtain direct and in-depth information, in this case this technique is carried out without drafting questions, so that informants can express themselves (istijianto 2005). While the number of people who were observed was 2 people. From the results of research conducted by researchers in analyzing each answer given by each informant and found that they consider this family communication important and always provide news to each other. They use their smartphone technology to call them at every opportunity. The conclusion of the research is that the informants maintain their family communication for one important reason, namely if we don't maintain this family relationship, we don't know each other more closely. Whereas in this day and age they use new media technology or their smartphones to often call their families even though they are busy, they still call at every opportunity.
YANGI BILIMLARNI O‘ZLASHTIRISHDA TEZ O‘QISHNING AHAMIYATI
Authors: Sulaymonov Qurbonali  , Madaminov Dilshodjon
Published: February 2023

Inson doimo yangilikka intilib keladi va yangiliklarni bilimi orqali yaratadi. Yangi bilimlarni egallashning eng asosiy va samarali usuli esa bu o‘qish hisoblanadi. Lekin o‘qishning siz bilan bizga ma’lum bo‘lmagan usullari ham borligidan xabaringiz bormi? Albatta, bor. Lekin afsuski, ko‘pchilik bu haqda bilmaydi. Ushbu maqolada o‘qish jarayoni, unga yangicha yondashuv – tez o‘qish tushunchasi yoritilgan bo‘lib, unda o‘qish jarayonining samarasini oshirish haqida ma’lumotlar berilgan. Undan tashqari tez o‘qishning bugungi kundagi ahamiyati haqida ba’zi tafsilotlar ham bayon qilingan.
QO‘QON XONLIGI MOLIYAVIY TIZIMIGA ELCHILIK MASALALARINING TA’SIRI: XUDOYORXONZODANING “ANJUM AT-TAVORIX” ASARI ASOSIDA
Authors: Xatamova Zumradxon Nazirjonovna
Published: February 2023

Maqolada Qo‘qon xonligi tarixini o‘rganishda muhim bo‘lgan manbalardan biri Xudoyorxonzoda qalamiga mansub bo‘lgan  “Anjam at-tavorix” asarida elchilik munosabatlarining yoritilishi masalasi  moliyaviy bayon etilgan. Xonlikning har bir elchilik munosabatlari moliya tizimiga bevosita bog‘liq bo‘lgan. Bunda davlat  moliyaviy kirim yoki sarf xarajatni amalga oshirgan. Siyosiy mazmundagi elchilik munosabatlari natijasida esa ma’lum bir hudud xonlik tarkibiga qo‘shilsa  soliq obyekti ko‘payib, xazinaga daromad kelishidagi resurs paydo bo‘lgan. Yoki, aksincha bo‘lsa, soliq obyekti yo‘qotilishi natijasida moliyaviy kamomad vujudga kelgan. Qo‘qon xonligi va chet davlat bilan o‘tkazilgan elchilik muzokaralari ijobiy yakunlansa mamlakatlararo savdo hamda iqtisodiy munosabatlar kuchayib borgan. Bu esa xonlik moliya tizimini ravnaqiga xizmat qilgan.
TOSHKENT YEPARXIYASIGA BOSHCHILIK QILGAN RUHONIYLAR FAOLIYATI TAHLILI
Authors: Sharofiddinov Abdug‘affor , Mukarramov Dilshod
Published: February 2023

Maqolada xristian dinining Turkiston o‘lkasiga kirib kelishining qisqacha tarixi, ushbu din vakillarining Chor Rossiyasi tomonidan o‘lkaning bosib olinganidan keyingi hayoti, diniy tashkilotlari faoliyati, xususan Toshkent yeparxiyasi va unga boshchilik qilgan ruhoniylar faoliyatining tahlil qilingan.
AN INTERPLAY OF OIL PRICE VOLATILITY, EXCHANGE RATE AND STOCK RETURNS IN NIGERIA
Authors: ODICHE WILLIAMS
Published: February 2023

We analyze the interplay of oil price volatility, exchange rate and stock market return in Nigeria using 5-days daily data covering 1985 to 2021. The variables used in the study are oil price and exchange rate volatilities as the independent variables, and stock market return as the dependent variable. The data for the study was obtained from the CBN statistical database; We employed descriptive statistics and VECH GARCH (1,1) model in our estimation. The result of the analysis shows that both the exchange rate and oil price volatility positively and significantly influence the shocks to stock market return in Nigeria. In conclusion, we observed that shocks to stock market return are attributed to oil price volatility and exchange rate volatility. we advocate for the diversification of the Nigerian economy to reduce the impact of oil price volatility on stock market return.
UTILISATION OF ARTIFICIAL INTELLIGENCE IN EDUCATION: THE PERCEPTION OF UNIVERSITY OF IBADAN LECTURERS
Authors: EZEKIEL OLUWAFEMI BAMIDELE , AKINYEMI ADETUNMBI LAOLU
Published: February 2023

Artificial Intelligence (AI) is one rapidly expanding field of knowledge that has the potential to drastically modify traditional methods across industries, including the academic sector, and the likelihood of it causing major changes means that we all must increasingly be prepared. Therefore, this study investigated how University of Ibadan lecturers perceive the application of artificial intelligence (AI) in the Nigerian educational system. The survey method was adopted for the study and the purposive sampling technique was used to sample members of academic staff in the university. Data were collected from 97 lecturers, using a questionnaire titled “Lecturers' Perception of AI in Education (LPAIEd)” which had a reliability value of r = 0.82. Results showed that lecturers’ perception of AI in education is highly positive. While there are no doubts about the immense benefits that AI could bring to the field of education, this study showed that some lecturers have some reservations towards its adoption. However, it was also revealed that lecturers are completely willing to adopt AI in education, regardless of their reservations. In light of these findings, it was recommended that training and orientation programmes be organised for lecturers to aid better understanding of the possibilities of AI, while also ensuring that higher institutions of learning are more equipped with modern technologies as this will help lecturers to gradually eliminate unease and foster confidence and competence in their use of technology.
THIRD LEVEL DETAILS OF DERMATOGLYPHICS; IDENTITY OF AN INDIVIDUAL IN FORM OF PORES OF PALMAR AREA THROUGH PHOTOMICROGRAPHS
Authors: ARYA C. G. , CHAUHAN AMIT , PANICKER MALAVIKA , NATHAN P. H. HIMA , KANIMOZHI P. KAROLIN , XAVIER FR. JOBI
Published: February 2023

A detailed examination of various details of fingerprints can prove/deny the association of an individual in any crime. Minutiae details of fingerprints help to establish the identity of an individual beyond any doubt. The concept of poroscopy and edgeoscopy in fingerprints mainly based on third level details of fingerprints. Although the practical use of third level details is very less till now but in the cases whereas fingerprints are very fragmented and do not contain sufficient second level details to establish identify, consideration of third level details proves to be efficient. During this study, 200 samples (100 males & 100 females) were studied to identify an individual based on number of pores and edge details in a selected area of 16mm2. The results of the study (17 pores/16 mm2 from right hand and 20 pores/16 mm2 from left hand) while (16 pores/16mm2 for both hands of females) help to determine the gender/ differentiate between left/right hand of same individual at a significance level of p<0.01. Outcomes of this study can help the investigators to nab the perpetrator of any crime even in distorted/smudged fingerprints too.
CORRELATION BETWEEN HB GM% AND HEMATOLOGICAL AND BIOCHEMICAL PARAMETERS OF SICKLE CELL ANEMIC TRIBAL POPULATION OF MELGHAT REGION
Authors: CHANDRAKAR MAMATA , PACHLORE GAJENDRASINGH
Published: February 2023

Sickle cell disease is found to be widespread throughout the World. Sickle cell disease has been found in almost 12 Indian states and one Union territory and its prevalence rate was found to be highest in Central India. Melghat region is in Maharashtra where majority of population belong to tribal Community.

In the present study about 392 persons were willing to be screened were selected for the sickle cell screening test.The oral consent were given by the participating individual.  Out of the 392 persons the blood examination of about 271 patients were found to be sickling test positive. The blood of these persons was subjected to further confirmatory test for sickle cell disease.

Out of the 271 blood samples subjected to haemoglobin electrophoresis total 135 persons were reported to be sickiling test positive. 77 individuals showed an haemoglobin band pattern of ‘AS’ type. These individuals are the potent carriers of the sickle cell gene. 58 blood samples after electrophoresis were found to exhibit the SS band pattern. Haematological analysis: Haemoglobin level, white blood cell count, level of lymphocytes, monocyte count, haematocrit (HCT) value, mean corpuscular haemoglobin (MCH) has been studied.

Biochemical analysis: The total bilirubin levels, serum urea, creatinine levels, Alkaline Phosphatase and  serum Na+ & K+ level has been studied.

Statistical Analysis: The correlation between Hb gm % and all hematological and biochemical parameters has been established.

The correlation between Hb and all hematological and biochemical parameters had been established. It had been found that a positive correlation in RBC (Red Blood Corpuscles), WBC(White Blood Corpuscles), Lymphocytes, Haematocrit, MCV, and MCH while the rest of the parameters were insignificant.
AN In-silico MOLECULAR DOCKING STUDY ON THE INTERACTION OF DIFFERENT PARABEN ESTERS (METHYL-, ETHYL-, PROPYL- AND BUTYL-PARABEN) WITH HUMAN THYROID HORMONE RECEPTOR α1 (THRα1) AND β1 (THRβ1)
Authors: GOGOI POBI , KUMARI NITU , BAISHYA JYOTISHMITA
Published: February 2023

Thyroid hormones (THs) activate transcription of a large number of genes via binding with nuclear thyroid hormone receptors (THRs) that are either attached to the DNA genetic strands or located in proximity to them. However, the ever-increasing human anthropogenic activities have introduced numerous harmful chemicals in the environment, many of which share high degree of structural resemblance with the THs i.e., triiodothyronine (T3) and thyroxine (T4) and thus can interfere with the normal downstream receptor signalling. The present study used bioinformatics to perform a molecular docking analysis (Autodock 4.2.6) where different paraben esters (PBs) i.e., methyl- (MP), ethyl- (EP), propyl- (PP) and butyl- paraben (BP) were examined for their possible interaction with two human THR isoforms viz., THRα1 and THRβ1. Perceiving the free binding energies (ΔG) of different PB-THRs complexes, it has become evident that BP has the strongest binding interaction with both THRα1 (PDB Id- 1NAV) and THRβ1 (PDB Id- 1NAX) i.e., -6.51 and -6.14 kcal/mol respectively and also has highest number of amino acids interactions in the active sites, followed by PP, EP and MP. The co-crystal ligand exhibited binding energies of -10.43 and -10.52 kcal/mol for THRα1 and THRβ1 respectively. Therefore, the study firmly demonstrates that thyroid hormone receptor interaction of the selected PB esters rise with increase in length/complexity of the alkyl side chain. Given that all the investigated PB esters are capable binders of both the THRs, unremitting use of these chemical preservatives certainly could amend the receptor mediated signalling of THs.
SEASONAL VARIATION IN THE PREVALENCE, ABUNDANCE, AND MEAN INTENSITY OF ACANTHOCEPHALA INFECTING SNAKE HEADED FISH, Channa punctatus (BLOCH 1793) IN HOOGHLY DISTRICT, WEST BENGAL, INDIA
Authors: DEY ANKITA , PANDA PRADIP , DEY CHIRANJEEB
Published: February 2023

The seasonal variation of acanthocephalan parasite Pallisentis sp. infecting Channa punctatus (Bloch 1793) was studied over a period of two years from June 2017- May 2019. The sampling of host fish was done from local fish markets of different regions of the Hooghly district. The prevalence, mean intensity, and abundance of infection were studied and statistically verified. A total of 300 fishes were examined, out of which 141 fishes were found to be infected with acanthocephalan parasites. The infection was higher during the pre-monsoon season, moderate during monsoon, and lower during the post-monsoon season. Availability of Pallisentis sp. was found to be affected by biotic factors like the feeding habit of host fish, availability of intermediate hosts i.e. arthropods, and also abiotic factors (temperature, relative humidity, rainfall, etc).
A REVIEW STUDY ON DETECTION OF COCAINE FROM FINGERPRINT RESIDUE
Authors: NATHAN P. H. HIMA , CHAUHAN AMIT , KANIMOZHI P. KAROLIN , ARYA C. G. , PANICKER MALAVIKA , XAVIER FR. JOBI
Published: February 2023

Illicit drug trafficking and drug abuse are highly reported crimes around the world. Detection of criminals in such types of cases are often very difficult. It is expected that criminals’ fingerprint residue will have traces of such evidence and will leave behind at scene of occurrence. Researchers have reported so many analytical techniques i. e. Raman Spectroscopy, Mass spectrometric analysis techniques such as PS-MS, LC-MS-MS, and imaging techniques such as ATR-FTIR for extraction and quantitative analysis of such drugs from remnants. This study is an attempt to trace the evidences of cocaine from fingerprint residue and to detect external deposition of cocaine either from primary contact or secondary contact can be detected based on concentration variations. Excretion of cocaine metabolites through sweat can be detected from fingerprint residue using mass spectrometric analysis techniques as well as immunoassays. The result of this study will encourage the researchers for the extraction of drug particles from fingerprints and apprehend the people involved in crime related to drugs.
FAMILY OF CONGRUENCES FOR (2, β) REGULAR BIPARTITION TRIPLES
Authors: Puneeth V. , Roy Anirban
Published: February 2023

Though congruences have their limitations, they have significant impor- tance in the field of number theory and helps in proving many interesting results. Thus, this article has adopted the technique and properties of congruences to iden- tify and prove a set of congruent properties for integer partition. The partition of a positive integer is a way of expressing the number as a sum of positive in- tegers. One such partitions known as regular bipartition triple are discussed in this article. New congruences modulo even integers and modulo prime (p 5) powers are derived for (2, β) regular bipartition triples. Also infinite families of congruences modulo 2 for some (2, β) regular bipartition triples are derived. The theorems stated in this article are proved using the q series notation and some of the prominent results such as Euler’s pentagonal number theorem and Jacobi’s triple product identities. There are certain lemmas which are derived using these results that help in proving the major results of this article.
SOME PROPERTIES OF FRACTIONAL HARTLEY TRANSFORM
Authors: Nikam Swati , Reddy B. Surendranath , Gaikwad Vasant
Published: February 2023

This paper is motivated by the ideas of fractional Fourier transform and Hartley transform. Looking towards the practicality and demanding attention of fractional Hartley transform we take keen interest into it. In this paper, we deal with inverse theorem of FRHT and some important properties of fractional Hartley transform like exponential rule, multiplication rule, transform of derivative and derivative of transform, which play a very crucial role in the development of fractional Hartley transform.
EXISTENCE AND UNIQUENESS OF FIXED POINT FOR NEW CONTRACTIONS IN RECTANGULAR b-METRIC SPACES
Authors: Tiwari Jayesh , Sharma Dileep Kumar
Published: February 2023

In this article, we give some new examples of rectangular b-metric spaces which are neither rectangular metric space nor metric space. After that we prove existence and uniqueness of new fixed points for some new contractions in rectangular b-metric spaces. Then we validate these results with suitable, appro- priate and innovative examples.
CERTAIN SUBCLASS OF BI-UNIVALENT FUNCTIONS RELATED TO HORADAM POLYNOMIALS ASSOCIATED WITH q-DERIVATIVE
Authors: Nandini P. , Latha  S.
Published: February 2023

In this paper, by making use of q-derivative, we define a new subclass of analytic and bi-univalent functions related to Horadam polynomials. For func- tions belonging to this class, we derive coefficient inequalities and the Fekete-Szego¨ inequalities. We also provide relevant connections of our results with those consid- ered in earlier investigations
ON RECURRENT LIGHTLIKE HYPERSURFACE OF KENMOTSU MANIFOLD
Authors: Shukla Sushil
Published: February 2023

The object of present paper is to study the properties of recurrent lightlike hypersurfaces of Kenmotsu manifold with (l, m)−type connection.
EQUIVALENT STRUCTURES ON N (κ) MANIFOLD ADMITTING GENERALIZED TANAKA WEBSTER CONNECTION
Authors: Naik Shweta , Nagaraja H. G.
Published: February 2023

The main objective of the present paper is to study the equivalence of semi-symmetric and pseudo-symmetric conditions imposing on different curvature tensors in N (κ) manifolds admitting generalized Tanaka Webster ( ˜) connection. Classification is done according as expression of Ricci tensor and scalar curvature with respect to ∇˜. Finally an example is given.
SCHULTZ INDICES AND THEIR POLYNOMIALS OF MYCIELSKIAN GRAPHS
Authors: E. Lavanya , Sriraj M. A. , Doddamani Bhagyashri R.
Published: February 2023

Topological indices are studied extensively due to its vibrant applica- bility in the field of chemical graph theory. These connectivity indices(topological indices) is a numerical value resulting in an unequivocal process based on the struc- ture of graph. Numerous topological indices are classified based on their distance and degree. The Schultz and modified Schultz indices considered in this paper have been expansively studied by various authors on different types of graphs. In this paper, we established the results on Schultz, modified Schultz indices and their polynomials for mycielskian graphs.
ON METRIC DIMENSION OF BOOLEAN GRAPH BG1(G)
Authors: P. Sameerali C. , K. Sameena
Published: February 2023

Let G be a simple graph with vertex set V and edge set E. BG,NINC,Kq (G), known as boolean graph of G-first kind,simply denoted by BG1(G) is defined as the graph with vertex set V E and two vertices are adjacent if and only if they correspond to adjacent vertices in G or to a vertex and an edge in G such that the edge is not incident with the vertex. In this paper we give a bound for metric dimension of BG1(G) and also find expression for metric dimension of boolean graphs of Complete graphs and Star graphs. Finally, an algorithm for finding the metric dimension of BG1(G) is established.
ANTIPODAL DOMINATION NUMBER OF GRAPHS
Authors: . Kokilambal
Published: February 2023

A dominating set S  V  is said to be an Antipodal Dominating Set(ADS) of  a  connected  graph  G  if  there  exist  vertices  x, y      S  such  that d(x, y)  =  diam(G).  The  minimum  cardinality  of  an  ADS  is  called  the Antipodal Domination Number(ADN), and is  denoted  by  γap(G).  In  this paper, we determined the antipodal domination number for various graph prod- ucts, bound for antipodal domination and characterize the graphs with γap(G) = 2.
DETOUR PEBBLING ON CARTESIAN PRODUCT GRAPHS
Authors: . Lourdusamy , Nellainayaki S. Saratha
Published: February 2023

Given a distribution of pebbles on the vertices of a connected graph G, a pebbling move is defined as the removal of two pebbles from some vertex and the placement of one of those pebbles on an adjacent vertex. The t - pebbling number of G is the smallest number, ft(G) such that from any distribution of ft(G) pebbles, it is possible to move t pebbles to any specified target vertex by a sequence of pebbling moves. The detour pebbling number of a graph f ∗(G) is the smallest number such that from any distribution of  f ∗(G) pebbles, it is possible to  move a pebbles to any specified target vertex by a sequence of pebbling moves using a detour path. In this paper, we find the detour pebbling number for some Cartesian product graphs and also the detour t - pebbling number for those cartesian product graphs.
DOUBLE ROMAN DOMINATION NUMBER OF MIDDLE GRAPH
Authors: Shirkol Shailaja S. , Kumbargoudra Pavitra P. , Kaliwal Meenal M.
Published: February 2023

For any graph G(V,  E), a function f : V (G)    0, 1, 2, 3     is called Double Roman dominating function (DRDF) if the following properties holds, If f (v) = 0, then there exist two vertices v1, v2 ∈ N (v) for which f (v1) = f (v2) = 2 or there exist one vertex u ∈ N (v) for which f (u) = 3.∈ If f (v) = 1, then there exist one vertex u N (v) for which f (u) = 2 or Σ f (u) = 3. The weight of DRDF is the value w(f ) = v∈V (G) f (v). The minimum weight among all double Roman dominating function is called double Roman domination number and is denoted by γdR(G). In this article we initiated research on double Roman domination number for middle graphs. We established lower and upper bounds and also we characterize the double Roman domination number of middle graphs. Later we calculated numerical value of double Roman domination number of middle graph of path, cycle, star, double star and friendship graphs.
MATHEMATICAL STUDY OF PULMONARY AND INTRAVENOUS ADMINISTRATION OF OXYGEN IN BIOLOGICAL TISSUES UNDER HYPOXIA CONDITIONS
Authors: Lone Ahsan Ul Haq , Khanday M. A. , Mubarak Saqib
Published: February 2023

Mathematical modelling of oxygen transport in biological tissues played a great role and provides optimal results for advanced biomedical and biophysical research. Conventionally, oxygen is administered to hypoxic patients through pul- monary route. A mathematical model has been proposed to establish an alternative route for oxygen supply, whereby oxygen is administered directly into the target tis- sue bypassing the lung compartment. Our study aims at evaluating the feasibility of the novel approach using compartment modelling. The model is represented by a system of first order ordinary differential equations and their solution by Cramer’s rule and Laplace transform method. The concentration profiles of oxygen through pulmonary and intravenous routes were estimated in the arterial blood and tissue compartments at different flow rates; and with respect to initial oxygen concen- tration in the lung compartment and in the injected solution. Our results are in agreement with those arrived at by Lin Gui and Jing Liu (2006) [4]. The method offers a promising alternative to the conventional approach for clinical rescue of hypoxic patients, more so in emergency situations.
ACCELERATING COSMOLOGICAL MODELS WITH VARIABLE G AND Λ-TERM IN GENERAL RELATIVITY
Authors: Bhardwaj Vinod Kumar , Singh Ajay
Published: February 2023

In this paper, we have presented a new class of accelerating universe models with variable cosmological term Λ(t) and gravitational constant G(t) in the framework of general relativity. To get exact solution of Einstein’s field equations for homogeneous and anisotropic Bianchi type-V space-time, a time varying de- celeration parameters is considered as q = 1 + nα , where n, α are constants. The present model shows a point type singularity at origin. The results establish the quintessence like behavior of model initially, and approaches to ΛCDM model ultimately. Some geometrical and physical properties of the models have been evidenced, and conferred to derive the validity of models with respect to recent astrophysical observations. Stability of the model has been discussed through the means of Om(z) diagnostic and state-finder analysis.
EXTENDED GENERALIZED τ -GAUSS’ HYPERGEOMETRIC FUNCTIONS AND THEIR APPLICATIONS
Authors: Chauhan Bharti , Rai Prakriti
Published: February 2023

In this article, by means of the extended beta function, we introduce new extension of the generalized τ -Gauss’ hypergeometric functions and present some new integral and series representations (including the one obtained by adopt- ing the well-known Ramanujan’s Master Theorem). We also consider some new and known results as consequences of our proposed extension of the generalized τ -Gauss hypergeometric function.
Hechos importantes a 10 años de vida de la Universidad
Authors: Ibarnegaray Fabiola
Published: February 2023

En el camino que ha recorrido nuestra Casa de Estudios Superiores desde su fundación, algunos hechos importantes han logrado definirla como pilar fundamental para la formación de profesionales en nuestro país. A 10 años de funcionamiento, se ha conseguido grandes logros a través de acontecimientos trascendentales que mencionaremos resumidos por áreas.
Enhancing Innovation: The Idea, Validity and Higher Education Reflections from the Field amid COVID-19 Crisis
Authors: Enock Mulimba Ruyembe Charles
Published: February 2023

The changes experienced by African higher education institutions over the past decade remain unprecedented. An increasing external pressure, linked to the broader and modern concept of higher education that looks beyond to bringing about a new level of self-empowerment and graduate’s employability has consequently, brought about a need for overhauling higher education systems in African countries. Eventually, the validity of higher education reflections from the field amid COVID-19 crisis, casts back a light to conducting a serious educational discussion. This chapter argues neither recognized framework established nor innovative strategies are considered beyond teaching and learning to observe higher education as a fulcrum of knowledge based learning in African higher education. Findings from a qualitative approach using semi-structured interviews with 30 creative entrepreneurs and arts alumni from the University of Dar-Es-Salaam and other East African universities, reveal that many suffer a social undermining problem. Hence, there is an importance of enhancing educational innovation by cultivating social capital while at university.
Utilizing Design Thinking as a Compass to Develop a Personalized Flipped Learning Curriculum
Authors: Matsui Hisae
Published: February 2023

This chapter illustrates the process of reforming the curriculum of a Japanese language course in a university through the process of design thinking and addresses its benefits and problems. Design thinking is a human-centered approach to problem-solving that involves processes of discovery, interpretation, ideation, experimentation, and evolution. By applying these processes, a curriculum reform led to the development of a prototype of a personalized flipped learning curriculum that addresses the diverse needs of students. The results of a survey conducted after implementing the new curriculum revealed areas that had improved and needed improvement, indicating that design thinking is an excellent guide for curriculum development. However, they also revealed limitations of applying design thinking, such as the difficulty of addressing the needs of students whose opinions were not able to be obtained.
A Study on the Writing Educational Needs by Learner Type: Based on the Basic Class of H University
Authors: Jeong Duk-Hyun
Published: February 2023

This study is a plan for reflection on college student writing education and the writing requirements of learners. The purpose is to analyze the educational needs of college students, who are the actual users of college writing education, and to reflect the results in other educational sites actively. In particular, a study was conducted on college students in the basic class, whose writing ability was relatively lower than that of general students. What is particular about this study is that learners were not generally analyzed. This study was conducted within a private university in Korea, and they were first divided into four learning types based on learning motivation and self-control. In addition, by investigating the educational needs according to the four learning types, research was conducted so that they could use them in the educational field in the future. For a systematic study, a questionnaire on learning types and on demand for writing education was produced, and to obtain objective results, frequency analysis, descriptive statistics, t-test, f-test, Borich requirement formula, and statistical analysis, using The Locus for Focus model, were performed. As a result of the study, meaningful results were derived for each learner type. Reflecting on these research results, the researcher hopes that there will be practices such as developing programs that can write an outline well in writing education, strengthening writing correction education, and expanding engaging writing education using media.
Phenolic Compounds Profile of Brazilian Commercial Orange Juice
Authors: Rita Estevam Maria , Mesquita Estela , Monteiro Magali
Published: February 2023

Orange juice is largely produced, exported and consumed in Brazil. It is an important source of bioactive compounds, such as flavonoids and phenolic acids, which are beneficial to the health of consumers. The aim of this work was to evaluate the phenolic compounds profile of commercial orange juice from Brazil using HPLC-DAD and UPLC-ESI-MS, and multivariate analysis. Forty-five phenolic compounds and one precursor were identified: cinnamic acid, 19 cinnamic acid derivatives, 8 flavanones and 18 flavones. Rutin, eriocitrin, narirutin, naringin, hesperidin, naringenin, nobiletin and tangeritin as well as caffeic, p-coumaric and ferulic acids were present in juices from all brands. Hesperidin and narirutin presented the highest levels considering all brands, while tangeretin and ferulic acid had the lowest levels in all juices. Principal component analysis of the phenolic compounds profile showed a wide variety among juices within the same brands, making it hard to perceive major differences among the brands.
The Beauty and the Toxic Beast: Use of Comet Assay to Study Antigenotoxicity of Natural Ingredients
Authors: Gonçalves Sara , Gaivão Isabel
Published: February 2023

The natural cosmetics market has grown since consumers became conscious of natural-based ingredients. A significant number of cosmetics have noxious and chemically potent substances. Thus, the use of natural and organic cosmetics has become increasingly important. An intense investigation into the benefits fruits and plants can bring to our health is required. A healthy lifestyle can reduce these problems, including the consumption or use of substances that protect the genome through various mechanisms that reduce DNA damage. Genotoxicological studies are essential to know the threats to the genome and health, and antigenotoxicological studies are the answer to minimise the instability of the genome. Natural ingredients such as Almond (Prunus dulcis), Elderberry (Sambucus nigra), Olives (Olea europaea), and Grapes (Vitis vinifera) have been shown to possess a variety of biological activities and to hold therapeutic promise. They are the most common ingredients in the Trás-os-Montes region (Portugal). This study aimed to demonstrate, in vivo, the genotoxicological effects of Elderberry, Almonds, Olives, and Grapes in Drosophila melanogaster using the Comet assay.
Natural and Anthropogenic Impacts on the Macrophytes of Soft-Water Lakes of Estonia
Authors: Mäemets Helle
Published: February 2023

Oligotrophic and semidystrophic lakes (water alkalinity <80 mg HCO3− L−1; dichromate oxygen consumption <40 mg O L−1) are the main habitats for rare macrophytes, especially isoetids. They are characteristic for the lakes with HCO3− ≤ 30 mg L−1; the higher alkalinity and related higher trophy level support elodeids. Anthropogenic impact on these lakes in Estonia started with flax retting and water lowering and continued with sauna building, agricultural nutrients, and holiday activities. The present overview is based on the data of the last 50 years. Anthropogenic acidification of Estonian lakes is not known, but natural dystrophication due to the inflow of humic compounds is probable. Alkalization and eutrophication are closely related, amplifying each other, and water level modifies these processes. Eutrophication increases the occupation of shallow zone by emergent belts, suppression of isoetids by elodeids, and overshadowing by phytoplankton blooms in a deeper zone or host plants by macroalgae. Fast-growing eutraphents accelerate the accumulation of organic sediments, unfavorable for isoetids. Among floating-leaved plants hybridization between rare and common species as well as introgression takes place. It is almost impossible to reverse back ecosystems that formed and balanced over thousands of years and became unbalanced during a much shorter period. Easier would be to keep functioning ecosystems.
Prevalence and Hemodynamic Consequences of Mitral Valve Abnormalities in Atrial Septal Defect
Authors: Shojaeifard Maryam , Keshavari Sheida , Jamshidi Saideh , Bakhshandeh Hooman , Ghaznavai Mohammad Ali , Dehghani Mohammad Abadi Hossein , Erami Sajad
Published: February 2023

Background: Atrial septal defect (ASD) is a common congenital heart disease in adults. Concomitant mitral valve disease in patients with ASD could have significant hemodynamic effects whit a great impact on managing this congenital defect. Objectives: This study evaluated the prevalence of mitral valve abnormalities and the hemodynamic burden associated with different types of ASD. Methods: This retrospective study reanalyzed 1,006 consecutive patients referred to Rajaie Heart Center in Tehran from March 2019 to February 2022. We evaluated adult patients with the diagnosis of a shunt at the atrial level. Diagnoses were made with 2D and 3D transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE). 3D analysis was performed with 3D zoom, mitral valve navigation (MVN), and full-volume and multi-planar reconstruction (MPR) modalities. We performed statistical analysis by SPSS version 22.0. The qualitative data were expressed as frequency and percentage. Data were compared between subgroups via Mann-Whitney U/Kruskal-Wallis tests for the interval variables, Pearson's chi-square test for nominal variables, and chi-square for trends test for ordinal variables. Results: The distribution of different ASD types was ostium secundum in 88.8% of cases, primum ASD in 0.9%, SVC-type sinus venosus ASD in 9%, IVC-type sinus venosus in 0.4%, and unroofed coronary sinus in 0.9%. We found mitral valve abnormalities in 21.1% of cases, and the most common mitral valve abnormality were prolaptic lesions (17.4%). Conclusions: Age, ASD size, estimated Systolic Pulmonary Artery Pressure (SPAP), and severity of mitral regurgitation (MR) were markedly higher were markedly higher among patients with MV anomalies, more over left ventricular ejection fraction (LVEF) was significantly lower among this group (P-value < 0.05).
A situational judgement test for engineers to evaluate their professional strengths & weaknesses
Authors: Carthy Darren , Craps Sofie , Greet Langie , Gaughan Kevin , Bowe Brian
Published: February 2023

This paper reports on the development and evaluation of a 23 item Situational Judgement Test (SJT) with scenarios tailored to the engineering profession. The SJT was developed around the PREFER model, with the support of professional engineers and academics in 11 panel discussions. In total 53 engineering professionals and academics were consulted during the development of both the item stems and the item responses of the SJT. Subsequently, the SJT was rolled out to 334 final year and masters students enrolled in engineering programmes at TU Dublin and KU Leuven respectively. After taking part in the test, students were sent automated reports on their performance and the test which highlighted how their response compared to a response gathered from a professional engineer with feedback on how they might improve their competence in a particular area, while also commending their performance in other areas. The results of this study highlight that 8 SJT items had significantly lower mean scores when compared with the test-mean. These items, which were related to perseverance, client focus, vision, planning and organising, solution orientation, team player, work organisation, clear communication and networking all represent potential competence deficits in the population of final year and master students that were tested. This work adds to engineering education scholarship by providing an engineering-specific SJT that enables educators to identify areas of relative strength and weakness in students’ professional judgements in order to better prepare them for their future careers.