Aqueous media containing heavy metals from industries are directly or indirectly discharged into the environment to cause pollution and threat to human life. The bio-polymer chitin was synthesised using local snail shell to study the adsorption of lead, zinc and nickel from aqueous solution. The synthesis of chitin involves the following stages: (i) pre-concentration, (ii) demineralization, (iii) deprotonization and (iv) deacetylation. Chitin is characterized using analytical technique such as Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron microscope (SEM) and X-ray fluorescence (XRF) to confirm the presence of chitin. This study shows the effect of pH, time, and adsorbent dosage removal efficiency of the metals in solution. The concentrations of Pb2+, Ni2+ and Zn2+ absorbed under different conditions was evaluated using atomic adsorption spectroscopy (AAS). The result shows that the optimum pH adsorption for Pb2+, Ni2+ and Cu2+ using chitin was found to be at pH 2 for the all metals (Pb2+, Ni2+ and Zn2+) with percentage removal efficiency (92.5 , 82.4 , 80 ). The synthesized chitin has a potential of an adsorbent for the removal of heavy metals in aqueous solution.

Keywords - Heavy metal, chitin, characterization, adsorption, atomic adsorption spectroscopy.

Paternity testing in Nigeria is not a new phenomenon. Over the years, there have been controversies surrounding the paternity of children in our society which has further substantiated the need for accurate testing to establish the paternity of children in many circumstances. This study examined paternity testing in Nigeria, its evolutionary trends, current status and challenges. The study was a reviewed literature in which data was sourced from reputable publications related to the study. The study explored the evolutionary trend of paternity testing in Nigeria prior to the advent of the current DNA testing such as the blood group antigen and the serological testing. Some of the challenges identified in the study confronting paternity testing in Nigeria include lack of human capacity, poor funding and ill-equipped laboratories that can only offer ABO/genotype screening services which may result to inaccurate paternity results among others. As a result, this has led to various discrepancies in paternity results.

Keywords - Paternity, DNA testing, ABO genotype, Serological testing.

In this study, mapping of natural flow routes and morphometric assessment of lower Niger drainage Basin in Nigeria has been carried out to understand the spatial variations in morphometric parameters and evaluate hydrological, geological and topographical characteristics using SRTM DEM data. River basin delineation, mapping of slope, aspect, flow direction, and drainage routes has been accomplished using Hydrology tool extension of ArcGIS 10.3 Software. Strahler's and Horton's method of stream ordering has been utilized for all stream related calculations. Drainage characteristic such as stream order, stream number, stream length, mean stream length, Bifurcation ratio, drainage density, stream frequency etc, have been calculated in other to understand the hydrological and topographical processes.......

The lineament mapping and analysis through Remote sensing and Geographical Information System (GIS) technology occupies an important place in several fields of structural geological investigation. In this study, remote sensing applications through the processing of Landsat-7 ETM+ and Landsat-8 OLI/TIRS were used to assess their ability in automatic lineament identification and extraction. In addition to satellite data, the pre-existing geological map was used. After finding the optimal parameters of the LINE module for automatic lineament extraction in the study area, the comparison and validation of obtained results were undertaken. It appears that the lineaments extracted from Landsat-8 are better correlated with the faults in the study area both in terms of spatial distribution and orientation. The latter is more efficient in lineament mapping.

Keywords - Landsat-8 OLI/TIRS, Landsat-7 ETM+, Remote sensing, Geographical information system, Automatic lineament extraction.

This research paper mainly concerns with product development advancing the mechatronics systems and management related to "industry 4.0" approaching artificial intelligence. The worldwide industry is forming into the 4th revolution of the industry, which mainly focuses on the IoT (Internet of Things.) The concept is to provide the highest possible service in the manufacturing area, heading vertically and horizontally effective manufacturing systems. Despite high variation in small lot sizes, the resulting smart factories can meet diverse consumer demands while combining human creativity and automation. These ventures have played by the same-called cyber-physical systems (CPS): physical entities.........

Keywords - Industrial Automation, IoT, smart manufacturing, system engineering, mechatronic engineering, IIot, cyber-physical system, artificial intelligence, management.

West Borneo have many potentials energy of sun, which is can make as arouse Solar Power Electric Generator (SPEG). In this research the specification of solar home system we use 200 WP with 90 watt household's load. Maximum efficiency of sun energy to be electrical energy at solar cell 100 WP is as big 14,84%. The results of PVsyst also indicate efficiency that produce is 14,74% that same approach with result of calculation where the efficiency as 14,84%. This case mean that the information system status first specially battery, then the capacity of solar charge have ESL indicator at 3 color lamp charging LED (red < 30%, yellow < 70%, green 100%) and red LED. With attention indicator battery lamp obtained at solar charge lower is 30% then we need to save battery from damage. From the usage duration energy 1680 watt/ hour so obtained result of calculation load energy that used 90 watt is 18,67 hours with condition remaining battery energy 30%. At this research inverter 1000 Watt can't be used above 1000 Watt because it can destroy the battery.

Keywords - Solar home system, PVsyst, SHS efficiency

This study aimed to evaluate the addition of red fruit dregs (Pandanus conoideus L) as a feed additive on quail eggs' external and internal quality. The research materials are 200 laying quails aged 30 days. The experiment's method is a completely randomized design divided into five treatments and four replications using ten quails per experimental unit. The treatments tested are P0 (basal feed), addition of red fruit dregs to feed P1 (0.25%), P2 (0.5%), P3 (0.75%) and P4 (1%). The variables used in this study are egg weight, egg index, yolk index, white egg index, shell thickness, shell weight, and egg yolk color score. Data were analyzed using ANOVA and continued with Duncan Multiple Range Test if there is a significant result. The result showed that the dregs of red fruit have a highly significant.......

Keywords - red fruit dregs, additives, egg quality, laying quail.

This paper presents a framework for implementation of control and preventive measures for marine environmental pollution from oil and gas activities in Niger Delta region, with Akwa Ibom State as a case study. Unsustainable oil exploration activities have rendered the Niger Delta region one of the most severely petroleum damaged ecosystems, characterized by massive ecotoxicology, environmental degradation, loss of biodiversity and destruction of marine resources. Both qualitative and quantitative techniques are implemented for data gathering, analysis and interpretation. A total of 150 respondents participated, with 81 male and 69 females, aged between 16 and 60 years, from four major villages: Upenekang; Mkpanak; Iwoachang; and Inua Eyet Ikot. Research tools utilized include: questionnaires, focus-group discussion (FGD), personal observations and interviews........

Keywords - Oil and Gas activities, Marine Environmental Pollution, Case Study.

Practice-based learning is learning for education that is oriented towards the working world. It is because practice-based learning can produce work-ready graduates. Although graduates are focused on the work environment, practical education cannot be separated from how the conceptual understanding system is precisely the cognitive taxonomy as a basis or foundation in carrying out learning activities. The objective of this study was to determine the effect of practice-based learning on conceptual understanding. The design of this research was experimental research using data analysis techniques, namely the Mann-Whitney test. The research subjects in this activity were 90 students, who were divided into experimental class and control class. The data analysis results showed differences between the two groups, and the class that received practice-based learning treatment obtained better learning outcomes than the control class.

Keywords -Practice-based learning, conceptual understanding.

Floriculture is a discipline of horticulture. It includes cultivation of flowering and ornamental plants. It has aesthetic value. It includes seasonal biennial and perennial ornamentals flowers. Floriculture helps to employment opportunities and earning foreign exchange. Dokanda village popularly known as Khirai – 'A Valley of Flowers' in Purba Medinipur District of Panskura block is gradually developing in this agro industry. Due to favorable geographical environment in this flower Valley of Kansai River has immense potentiality of development of floriculture industry. In spite of several potentialities this region has faces several problems like cold storage, market availability, inaccessibility, seasonal irrigation etc. This research paper is mainly focused on factors affecting development of Floriculture in this village with SWOT analysis with proper planning process.

Keywords -Floriculture, Biennial, Fluvial-tidal deposition, Quaternary alluvial deposition, Interculture

Soil water characteristic curve (SWCC) is a significant property of unsaturated soil which includes tropical red earth soil. This is due to the fact that other soils' properties which include shear strength, permeability function and compressibility can be related to it. Selected reconstituted tropical red soil samples were prepared to simulate tropical soils characteristics with plasticity properties ranging from low to high configuration. The soil's matric potential was obtained from the filter paper technique. Gravimetric water content was utilized in the computation of the SWCC. Four models were used to estimate the SWCCs of the soils investigated and MSSR, ARE, and R2 values were utilized in the determination of the order of suitability of the models' capability to predicting the SWCCs. The models utilized were: Fredlund and Xing (1994); Van Genuchten (1980), Brooks and Corey (1964) and Kosugi (1996). It was observed that some models perform better for certain class of tropical red earth and the implication is that by simply identifying the fines content of a tropical soil, the class of the soil can be inferred and ultimately the SWCC can be predicted using the most suitable model for the particular class of tropical red earth.

Keywords - Tropical soil, SWCC, matric suction, filter paper.

In the sheet metal forming process, in this case U – Bending process a deep drawing quality steel DC06 was used in the experiment. Sheet metal parts that undergo deformation exhibit springback effect, which is governed by strain recovery of material after the load removal. In this work, the numerical simulation of bending U-shaped part was performed and compared with experimental data. The springback prediction is related to many parameters like forming conditions, tool geometry and material properties such as sheet thickness, yield stress, work hardening, strain rate sensitivity, elasticity modulus and numerical parameters........

Keywords - U-bending, springback prediction, simulation, numerical parameters

The research aimed to obtain the effect of teak leaf extract addition (Tectona grandis Linn. f.) phytobiotic as an antibiotic alternative on feed to laying quail production performance. The research was conducted from December 2020 to January 2021. It was held in Mr. Samsul's animal husbandry, in Bunder sub-village, Ampeldento village, Karangploso sub-district, Malang. The research applied 240 laying quails. The research applied a completely randomized design with four treatments six repetitions, where treatment consisted of P0 as control feed without teak leaf extract addition, P1 added 0.8% teak leaf extract to feed, P2 added 1.2% teak leaf extract to feed, and P3 added 1.6% teak leaf extract to laying quail feed. The experimental parameters were consumption, hen day production (HDP), feed conversion, egg mass, and income over feed cost (IOFC). Based on the result, the addition of teak leaf extract to feed provided an insignificant effect (P<0.5) to consumption, hen day production (HDP), feed conversion, egg mass, and income over feed cost (IOFC).

Keywords - Phytobiotic, Production Performance, Teak Leaf Extract

The objective of this study is to systematically review the literature in the field of quality management in education. By systematically analysing the specialized literature, the studies from the period between 2013-2021, based on the investigation of the characteristic aspects of the education quality management, have been identified. The results of this systematic analysis have led to the highlighting of two conclusions. The studies are based on the total quality management model. Depending on the research method used, it has been found that the predominant studies are quantitative, questionnaire-based. All the research results presented lead to conclusions in favour of a quality-focused organizational culture.

Keywords - Literature Review, Education, Quality Management, Total Quality Management, Model