Asian Journal of Advances in Research
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ITEM PARAMETER ESTIMATES OF UNIFIED TERTIARY MATRICULATION MATHEMATICS EXAMINATION USING ITEM RESPONSE THEORY 3 – PARAMETER LOGISTIC MODEL
Get PDFItem response theory has become a unique methodological framework for reviewing response data from assessments in education and other fields of study. This study attempted to assess the Item parameter estimates of Nigeria’s unified tertiary matriculation mathematics assessment instrument using item response theory 3 – Parameter logistic model and determined the conformity level of the items of the instrument to the revised Bloom’s taxonomy of educational objectives. The descriptive validation design was applied in the study. The population of the study comprised the 3, 320 SS 3 students registered for 2020 Unified Tertiary Matriculation Examination (UTME) who opted for mathematics in the public secondary schools in Abia State out of which 40 students were selected. Simple random sampling and purposive sampling techniques were adopted in selection of the samples using multistage procedure. Mathematics Assessment instrument used in the 2017, 2018 and 2019 UTM examinations were the instruments for data collection. This was made up of 120 (40 items for each year) multiple choice items, each having a single stem with four options including one correct answer and three distractors. b, a and c-parameters of the individual items of the instruments were established. The findings of the study revealed that a very high percentage (95% in 2017, 95% in 2018 and 85% in 2019) of the items were of moderate difficulty and discriminated adequately among high and low performing students. More so, the pseudo guessing parameter estimate indicated that there were low level of guessing since a high percentage ((90% in 2017, 92.5% in 2018 and 90% in 2019)%) of the items survived. The researcher recommended among others that examination bodies in Nigeria should concretize the quality of their test items by conducting item analysis using IRT model
FINDING NFTS (NON-FUNGIABLE TOKENS) USING A GIVEN ETHEREUM WALLET ADDRESS AN OPEN SEA STUDY
Get PDFBlock-chain- is a database that stores information in blocks or small segments. The current example of this method is about the newly digitalized form of currency called crypto-currency e.g., Bitcoin. In Bitcoin Blockchain plays a significant role by making transections in an extremely secure way. Blockchain eliminated the need for 3rd party and secure the data and other related information of the transaction. Blockchain makes the world less vulnerable to fraud by tokenizing the world. NFTs are the tokens of Blockchain which cannot b replicated. Tokens of Blockchain provide the service in the domain of real estate and artwork thus the art of selling, buying, and trading is accessible to all world.
This paper aims to demonstrate how NFTs are stored on the Ethereum blockchain and how we can access/view it for any given Ethereum address. For my research on NFTs, we will use OpenSea a gas-free marketplace for NFTs on Polygon. On OpenSea we can create, buy, sell, and auction NFTs on the Polygon blockchain without paying any gas fees. The software I created will render the NFTs from extracting the media from OpenSea servers which are hosted on Google server farms, which ultimately will extract the NFTs for any given Ethereum blockchain wallet Address
MINIATURE COMPONENT DESIGN FOR COMMUNICATIONS WIRELESS APPLICATIONS
Get PDFThe performance and advantages of microstrip patch antennas such as low weight, low profile, and low cost made them the perfect choice for communication systems engineers, and the integration of more services into personal devices, Personal digital assistants )PDAs) must operate in multiband frequencies. In this paper, a dual band Microstrip antenna is proposed. The proposed antenna is proposed to be used in a mobile phone covering two frequency bands including, GSM, bluetooth, Wifi. A comprehensive analysis of the return loss, radiation pattern and gain of the designed antenna is presented. The effects of packing on antenna parameters have been studied, and the proposed antenna shows a return loss (RL) of (-34,423) dB at (2.401) GHz; (-23.533) dBreturn loss (RL) at a frequency of (1.852) GHz; These are encouraging results. The proposed antenna design and simulation were based on thecomputer system technology (CST) software package
SEASONAL PHYSICO-CHEMICAL VARIATIONS OF TIRU RESERVOIR FROM UDGIR REGION DIST. LATUR (M.S) INDIA
Get PDFTiru reservoir is 22 km away from town Udgir on the northwest side near village Adolwadi. Tiru reservoir is an earthen Dam of an area having a 690 ha water submergence area constructed on river Tiru in 1976, a tributary of Lendi river which empties in Godavari river situated in the southwest part of India and southeast of Maharashtra for irrigation and drinking purpose. Considering the significance of this reservoir for this region, it is important to study its water quality of it. From December 2020 to November 2021 seasonal variation in physicochemical parameters of the Tiru reservoir were investigated. During the present investigation, seasonal variation in physicochemical parameters recorded such as Temperature was found 22.50℃ to 31.5℃ with mean of 27.18℃, Transparency 38 to 90.50 cm with a mean of 72.62cm, pH 7.5 to 8.8 cm with a mean 8.41,Dissolved Oxygen 2.6 to 6.6mg/l with mean 4.01 mg/l, Free CO2 is Nil to 0.6mg/l with mean Free CO2 0.33mg/l, Total Alkalinity is 128 to 228 mg/l with mean 181.33mg/l, Total Hardness 172 to 240 mg/L with mean 193.83 mg/l, Calcium hardness 54.60 to 88.20mg/l with mean 73.67mg/l, Magnesium hardness 21.47 to 37.04mg/l with mean 29.31mg/l, calcium 21.88 to 35.35mg/l with mean 29.54mg/l, Chlorides 28.36 to 43.95mg/l with mean 38.92mg/l, Salinity 51.22 to 79.37 mg/L with mean 69.55mg/land TDS 270 to 370mg/l with mean 347.50mg/l were analyzed and recorded
SPECTRAL SIMULATION OF ORGANIC SOLAR CELL
Get PDFBulk hetero-junction solar cell is replicated frightfully at different unique layer thickness and unmistakable opening adaptability by General Photovoltaic Device Model. GPVDM software was initially composed to reproduce natural sunlight based cells and OLEDs, yet later on it has been reached out to mimic different device, including silicon/CIGS-based devices. Natural mass hetero-junction sun arranged cell involves blend of P3HT & PCBM as powerful material, Indium Tin oxide (ITO) is a clear anode, Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate is an electron deterring layer and Aluminum a cathode. The optical reenactment has performed at various powerful layer thicknesses from 100 to 250nm, and electrical amusement at various holes transportability from 1×10-4cm2/Vs to 1×10-7cm2/Vs independently. The current-voltage (j-v) characteristics are affected by the initial versatility. The best current-voltage (j-v) characteristics are found at 1×10-6cm2/Vs flexibility and the best ingestion at 200 nm. It is assumed that in the normal BHJ sun based cell the adequacy increases, when compactness decreases, the usefulness further decays. If the adaptability is extended from 1×10-5cm2/Vs the partition probability is extended and will be generally outrageous
EFFECT OF Prosopis africana (African mesquite) OIL AS A PHYTOGENIC FEED ADDITIVE ON HAEMATOLOGY AND SERUM BIOCHEMICAL INDICES OF BROILER CHICKEN
Get PDFThis experiment was conducted to examine the effect of Prosopis africana (African mesquite) oil as a phytogenic feed additive on the haematology and serum biochemical indices of broiler chicken. GC-MS analysis of Prosopis africana oil (PSO) revealed the presence of 21 bioactive chemicals with therapeutic properties. A total of 540 1-day old broiler chicks (Ross 307) were randomly assigned to 6 treatments with six replicates consisting of 15 birds each in a completely randomized design. Treatment 1 (T1) (basal diet + 0% PSO), treatment 2 (basal diet + 1.5 g/kg neomycin), T3, T4, T5 and T6 were fed basal diet with PSO at 100 mg, 200 mg, 300 mg and 400 mg/kg feed respectively. The experiment lasted for 56 during which fresh water and feed were offered ad libitum. Vaccination was also carried out and all other management practices were strictly observed. Result from the analysis revealed that red blood cell, pack cell volume, haemoglobin concentration, mean corpuscular volume, mean corpuscular heamoglobin, mean corpuscular haemoglobin concentration, white blood cells and its differentials were significantly (P˂0.05) different among the treatments. Feeding broilers with PSO resulted in lower values of heterophils/lymphocytes ratio (P˂0.05). Similarly, all the serum biochemical parameters (albumin, globulin, glucose, cholesterol, ALP, AST and ALT) were significantly (P˂0.05) influenced by the treatments; expect for creatinine, urea, triglycerides, LDL and HDL values that were not significantly (P˃0.05) different among the treatments. It was concluded that PSO could be included up to 400 mg/kg diet of broilers without causing any negative effect on the health status of the animal
THE RELEVANCE OF THEOLOGY IN THE 4th INDUSTRIAL REVOLUTION
Get PDFIn the advent of the 4th Industrial Revolution, there is what we call a more advance “digital revolution” compared to the 3rd Industrial Revolution. This phenomenon, just like the previous technologies but being more advance, brought lots of big changes in the way people live. Many human works will become irrelevant because of the developing artificial intelligence being created by humans in this digital revolution. The value of being a human is now more seriously endangered than ever. Machines may totally dominate humanity in the near future. In this context, “what is the relevance of Theology?” This paper argues that Christian Theology is always relevant owing to its nature. The problem is how to uncover the relevance of Christian Theology to the present challenges. This paper uncovers its relevance to the present challenges of the 4th Industrial Revolution which are primarily the “fusion of the physical, biological, and digital worlds” and the “emergence of the developing Artificial Intelligence.” The method that this paper used is “existential phenomenology.” The main relevance of Theology in the 4th Industrial Revolution that this paper emphasized are maintaining one’s Christian freedom and Christian humanity
PRODUCTION & CHARACTERIZATION OF BIOPLASTICS FROM VEGETABLE PEELS-AN IDEAL STRATEGY FOR FOOD WASTE DISPOSAL
Get PDFThe use of bioplastics has gained momentum as it is biodegradable. Use of cost effective and easily available substrates in the production of polyhydroxy butyrate (PHB) enhances its application and hence PHB can be successfully used as a substitute for plastics. The present work was performed to study the optimum production of polyhydroxy butyrate (PHB) by bacteria isolated from soil and effluent samples using vegetable peels as carbon source and its efficiency was checked by PHB production at different time intervals. The maximum PHB production was observed with potato peel as carbon source. Thus, waste food as peels could be utilized as alternate sources of substrates for PHB production. Further investigations are undertaken
PHYTOCHEMICAL SCREENING, GC-MS CHARACTERIZATION AND MOLECULAR DOCKING STUDIES OF ROOT EXTRACTS OF Datura metel
Get PDFDatura metel (Solanaceae) which is commonly known as thorn's apple, Indian apple or devil's trumpet Isan annual herb of temperate zones which is distributed all over the world. D. metel belongs to the family Solanaceae. Different researchers conducted researches and studies on D. metel because of its various traditional and pharmacological uses, including hepatoprotective, antiviral, antibacterial, anti-asthmatic, analgesic, antipyretic, nephroprotective, anticancer, and antifungal effects, Datura metel has been identified as a species of pharmaceutical importance.
The objective of this study is to identify the Bioactive compounds by Phytochemical screening, identification of chemical composition of compounds through GC-MS and Molecular Docking Studies of hexane and ethanol Root Extracts of Datura metel against Inflammation.
In this study the docking results reveals that the ligands are well able to bind with the protein Mitogen Activated Kinase 2 (MK2) complexed with compound. The compounds discovered in the Datura metel root that were discovered using GC-MS data have been described as anti-inflammatory medicines with a range of targets, including Mitogen Activated Kinase 2. With the help of In silico docking studies, it was able to get a molecular understanding of the inhibitory mechanisms of newly identified drugs against an anti-inflammatory therapeutic target
DEVELOPING NATURE-BASED TOURISM IN IMO STATE, NIGERIA THROUGH STAKEHOLDER ENGAGEMENT FOR BIODIVERSITY CONSERVATION
Get PDFRural communities in Imo state, Nigeria have for centuries preserved monkey habitats via traditional conservation practices (TCP). Research has barely addressed recuring human wildlife conflicts (HWC) and challenges faced by communities who derive no economic or social benefits from their monkeys. This study was aimed at investigating how nature-based tourism (NBT) development implemented though stakeholder engagement could aid biodiversity conservation. Adopting a qualitative method, in-depth interviews (n=25) were conducted with key informants in Lagwa and Ejemekwuru and stakeholders outside the communities. Data was triangulated by observing human-monkey interactions in the locales and monkeys in habitats. Findings reveal that HWC persist due to reducing forest cover and residences/habitats proximity. Locals are uneasy but have no motivation to protect monkeys and habitats, so the TCP is waning. Identified stakeholders are enthusiastic, possess capacity to adopt and would support NBT development. Optimism was high that NBT would stem HWC, empower communities, provide income and help conservation. Processes for stakeholders to achieve conservation through NBT development are recommended. Clear and shared goals, consistent with community aspirations can be achieved by pursuit of conservation education in communities, improvement, reforestation and delineation of habitats. Concessions is recommended to multidisciplinary consortiums with proven technical and financial capabilities. This study could enhance policy and knowledge, while the recommendations would assist service providers, and initiate positive change in the investigated subject fields