bluuebunny/crossref_metadata_2025 huggingface dataset:
Development Design Technology Comic Literacy Android Based E-book
Authors: Endiawan Ahmad Syukri , Fathurohman Irfai , Santoso
Published: March 2021

This study aims to develop pictorial story literacy valid and practical based on android e-book on the theme of love plant and animals, sub two the benefits of plants of human life, especially in third-class of elementary school in Terangmas Undaan Kudus. This study is a Research and Development study using Borg & Gall’s. The development steps are: (1) analyze the needs of learning in primary school; (2) develop the design of initial products; (3) validation and revisions; (4) small group test; (5) large group test; and (6) diseminations. The research method used was a questionnaire and interview in SD Terangmas and SD 1 Glagahwaru. Date was collected using questionaire of respon students and teachers. The learning is valid looking by the scores obtain from 4 validators, which are 52, 27, 21, and 51 with criteria of valid score. The percentage of positive responses given by the teacher and students respectively is 93.33% and 95% of the minimum criteria 75.01%.
The Correlations Between Academic Supervision Using Zoom Meeting Technology with Teacher Job Satisfaction
Authors: Suripah  , Sukirman  , Surachmi W Sri
Published: March 2021

The research objective was to determine empirically the relationship between academic supervision of school supervisors and teacher job satisfaction. This study used a quantitative approach to survey method with the independent variable (X) academic supervision of school supervisors and the tied variable (Y) teacher job satisfaction. The research was conducted in public elementary schools in Bae District, Kudus Regency, with a purposive sampling technique of 50 teachers. Data collection through the online questioner whatsapp application. Data analysis method Product Moment correlation. The results showed that the rxy coefficient value was 0.868 at the p significance level of 0.000 (p <0.00), indicating that there is a very significant positive relationship between the academic supervision of school supervisors and teacher job satisfaction with an effective contribution of 75.4% the rest 24.6% Teacher job satisfaction is influenced by other factors.
Constraints in Implementing Online Learning during the Covid-19 Pandemic
Authors: Suci  , Candra Wiji Lestari , Murtono  , Suryani  , Budi Fitri
Published: March 2021

One of the effects of the Covid-19 pandemic is the recommendation to carry out online learning. This study aims to explore the constraints faced by teachers, students and parents in implementing online learning during the Covid-19 pandemic. The method of this study is a qualitative research. The respondents were teachers, students, and parents from the first grade, the second grade, the third grade, the fourth grade and the fifth grade at the state elementary school Mangunjiwan 2, Demak, Indonesia. The data were collected using interview and questionnaires and analyzed using a qualitative descriptive analysis. The results showed that the constraints experienced by teachers, students, and parents in implementing online learning during the Covid-19 pandemic include limited internet quota, network disruption internet, students without cellphones, lack of student attention, disturbed parents’ work, and teachers’ difficulty in using technology and designing attractive online learning. This study suggests teachers to increase their skill for online learning and government to support the internet for online learning.
The Influence of Student Motivation, School Environment, on Student Learning Achievement
Authors: Supratno Yoga Heri , Murtono  , Mochamad Widjanarko
Published: March 2021

Good learning achievement is expected to be able to become a quality human being. So that it can solve various forms of problems faced. Learning achievement can be influenced by student learning motivation factors and the school environment. The purpose of this study is to analyze the effect of learning motivation on student achievement and to analyze the influence of the school environment on student achievement in grade V Elementary School (SD). The research model is quantitative with the ex post facto approach. The study population was 100 class students. and research samples of 80 students. The sampling technique used cluster random sampling with two stage cluster sampling. Research instruments questionnaire and documentation. The data analysis techniques were instrument test, prerequisite analysis and hypothesis test. The results of the study:(1) there is a positive and significant influence of learning motivation on student achievement in grade V SD; (2) there is a positive and significant effect of the school environment on the learning achievement of grade V SD students.
HOTS - based scientific learning to increase the comprehension concept and science students skill
Authors: Widyaningrum Dewi , Utaminingsih Sri , Santoso
Published: March 2021

This research aims to know the effectiveness of HOTS based scientific learning models to increase the comprehension concept and science students skill. The method was quasi-experiment with Pretest-Posttest Control Group Design. The type of data obtained in this study is quantitative data. Data collection techniques in this study were used observation, student questionnaires, and student evaluation tests. Data analysis using the homogeneity, normality, and t-test to test the effectiveness of the model. Based on the output table ″independent samples test, it is known that the sig. (2-tailed) knowledge value is 0.224 and the sig (2-tailed) skill value is 0.507. Because the sig value is 0.224 and 0.507> 0.05, according to the basis of decision making in the independent sample t-test, it can be concluded that Ho is accepted and Ha is rejected, which means that there is a difference between the average knowledge and skill values of SDN Sayung 3 and 4. Based on the research results obtained, it is known that the use of hots-based scientific learning models is proven to be effective in improving thecomprehension concept and science students skill. In addition to testing the effectiveness of the model, researchers also observed student activities to strengthen research results. Besides, data analysis of student and teacher responses showed the highest positive results.
Content validity of android-assisted Problem Based Learning-oriented illustrated stories teaching materials
Authors: Zulifah Siti , Murtono  , Santoso  , Masfuah S
Published: March 2021

This study is a validation step, which aims to develop illustrated story teaching materials oriented problem-based learning with Android assistance. Specifically, the improvement of student learning outcomes in science was focused on Class IV in the Public Elementary School TelukKulon. This research is a validation stage which is part of research and development. This product contains science material in the form of audio-visual based learning videos, some problems must be solved and also games as feedback. Validation was carried out by four experts by expert judgment. The product was categorized as feasible and valid with an average validity of 3.65 or with very valid criteria. Based on data analysis, it is known that this teaching material is suitable for research.
Study of The Narrative Structure of Loram Kudus people as a means of Learning Literary Appreciation: Content Analysis based on Vladimir Propp
Authors: Majid M , Kanzunnudin M , Fathurohman I
Published: March 2021

Kudus is one of the cities located in central Java province. The folklore of the Holy City is very diverse. In each sub-district has a very interesting folklore and it also charged with local wisdom values. Researchers analyzed the story of the founding of the famous Wali Mosque in Loram Kulon village. As part of the literary work, the folklore of Wali’s founding at Taqwa Mosque and Sultan Hadirin contains pragmatic values that are very interesting to review. The research paradigm is a qualitative description as a research design with the content analysis method. According to Vladimir Propp, the data provider is done using library studies using data in writings as much as possible about structuralism studies. Data collection techniques are carried out with data-log tinging techniques (interview), observation, and documentation. The results of the study obtained two analysis results and discussions namely (a) the narrative structure of the folklore of Masjid Wali At-Taqwa and Sultan Hadirin and (b) the plan of implementing literature appreciation learning using the learning model think talk write (TTW).
Improving Critical Thinking Ability Through Discovery Learning Model Based on Patiayam Site Ethnoscience
Authors: Rihayati  , Utaminingsih Sri , Santoso
Published: March 2021

This study aims to determine the improvement of critical thinking ability toward grade IV elementary school student using Discovery Learning model based on Patiayam site ethnoscience. This research type is Quasy Experimental Design with the form of non-equivalent control group design. The sampling technique used is the type of Cluster Randong Sampling. The result of n-gain analysis show that the control class gets average 0,2535 as low category, while the experiment class gets average 0,5574 as medium category. The result of Independent Sample t-test show result of critical thinking ability on the observing with the result of Sig. (2-tailed) of 0,000 < 0,05. The conclusions of this study are the result of the critical thinking ability of the experimental group are higher than result of the control group.
STEAM (Science Technology Egineering Art Mathematic) Based Module for Building Student Soft Skill
Authors: Widarwati Dewi , Utaminingsih Sri , Murtono
Published: March 2021

The purpose of this research is to develop steam-based science learning modelus to improve the soft skill of grade IV elementary school students. This research uses research and development (R&D) methods. The resulting product is a STEAM-based science learning module. This research was carried out in grade IV elementary school in Jekulo Kaupaten Kudus sub-district which was established by cluster rundom sampling technique. Technical analysis of the data used in this study includes quantitative descriptive data analysis related to the validity and readability of modules, as well as to find out the effectiveness of learning modules used for normalized gain tests as well as t tests. The result of testing tcount = 5,721 trought the degrees of significant 5,721 > 2,042 or tcount > ttable and 0,000 < 0.005 or significance value < 0.05. The results of this study show that (1) the validation results performed on steam-based science learning modules have been valid to be tested in learning, (2) STEAM-based science learning modules are proven to improve the soft skills of grade IV elementary school students. From the description, it can be concluded that the development of steam-based learning models effectively improves the soft skills of grade IV elementary school students.
Katela Media Technology for multiplication count operations
Authors: Fatimah D , Murtono  , Su’ad
Published: March 2021

The purpose of this study was to determine the effectiveness of Katela learning media for multiplication count operations in grade II elementary school students in the Cut Nyak Dien cluster in Sulang district. This research method refers to the theory of Borg and Gall, using seven steps of research implementation, namely information gathering, research planning, developing initial products, field testing, revision, validation, and final improvement. Sources of data in this study were class II students and class II teachers in the Cut Nyak Dien cluster, Sulang district. There are 2 classes as a control class and an experimental class. The Control class carried out calcical learning activities without using media. The effectiveness test in this study was conducted by comparing the results of the students’ multiplication written test in the control class and the experimental class. It is found that tcount is 6.44. From the results of this study, it can be concluded that the katella media for multiplication operations can be used in multiplication learning in grade 2 elementary school. Hopefully it can inspire teachers to innovate in other learning.
Developing Socioculture-based Reflective Picture Storybook Media for Math Lesson
Authors: Kintoko  , Warniasih Kristina , Waluyo S.B. , Sukistiyarno YL
Published: March 2021

This research aims to: 1) create a reflective picture storybook media developed based on socioculture, and 2) determine the eligibility score of the socioculture-based reflective picture storybook media in improving social skill and creativeness of grade IV elementary pupils. This research follows ADDIE research and development method. Subjects for field testing came from Class IV State Elementary School (SDN) 2 Jonggrangan Kulon Progo, Yogyakarta, Indonesia and numbered 17 pupils. Data were obtained from observation, questionnaire, and documentation. The result from the research indicates that: 1) The reflective picture storybook is successfully developed based on sociocultural considerations; 2) Eligibility of the media according to evaluation by media expert in percentage reaches 85,81%, according to material expert reaches 86,02%, and according to students’ response reaches 86,00%.
Analysis of Students’ Reasoning in Answering Number Stories using Realistic Mathematics Approach
Authors: Kintoko  , Aviory K. , Suprihatiningsih S. , Sunanti T. , Hodiyanto
Published: March 2021

This study aims to analyzes students’ reasoning process in working on story problems using a realistic mathematical approach. The type of research is qualitative research. To obtain data in this study, instruments in the form of descriptive questions were compiled and developed by researchers (test method). To get accurate data, the tests used in this study must meet right test criteria. The research population in this small study was comprised of grade VII students from SMP PGRI Kasihan. Three groups of students participated in this study as research subjects. Data analysis conducted in this study was based on descriptive qualitative analysis techniques. Data analysis covered data reduction, data display, and drawing a conclusion. The results showed several locations of errors, types of errors, and causes of students’ mistakes in solving story problems in class VII SMP PGRI Kasihan, i.e., students still had difficulty in solving problematic challenges that demanded the ability to reason, were still not creative enough to prepare steps or strategy toward building complete answer, and not optimal in creating argumentation to answer problems that require the ability to provide argument or argument in the form of reasoning as the answer.
Effect of Frying on The Nutritional Composition of Catfish Nuggets (Clarias gariepinus) Substituted by Modified Cassava Flour (Mocaf)
Authors: Nur Hasanah Laeli , Fitriani Rosmauli Jerimia
Published: March 2021

Catfish is a freshwater fish that contains high protein. The cooking process affects the nutritional composition of food products including nugget. This study aimed to determine the nutritional content of catfish nuggets substituted by Mocaf before and after frying. Nuggets made from a combination of 90% catfish and Mocaf 10% of the total weight of the raw material. The nutrient content analysis method used was the water content by the oven method, the ash content by the dry ashing method, the protein content by the micro-Kjehdahl method, the fat content by the Soxhlet method, and the carbohydrate content by the by difference method. The results showed the catfish nuggets before being fried contained water 67,05%; ash 1,63%, fat 3,02%; protein 9,62%, carbohydrate 18,69; fiber 1,26%. The catfish nugget after frying contained water 55,11%; ash 2,04; fat 11,43%; protein 11,02%; carbohydrate 20,41% and fiber 2,64%.
Systematic Literature Review of Profiling Analysis Personality from Social Media
Authors: Idris  , Utami E , Hartanto A D , Raharjo S
Published: March 2021

The success or failure of a company is usually supported by the presence of reliable resources, especially human resources. Recruitment and placement of employees in the right position will have a significant impact on a company. Human nature and character are very diverse in their forms. DISC theory classifies personality into four types namely dominance, influence, steadiness, and compliance. The difference in the character of each type will of course affect the behavior style, how to deal with life pressures, and also how to communicate both directly and with social media. Through social media, a person can vent his feelings through the posts he uploaded. From these posts an analysis of the personality character he is possessed can be carried out. This systematic literature review is used to analyze and focus on techniques for conducting personality profiles through the use of social media. From this literature review of analysis, it can be obtained that the various personality classification methods and algorithms can provide a good level of accuracy.
Analysis of Enterprise Resource Planning (ERP) system implementation for manufacturing in Indonesia
Authors: Sari Marti Wdya , Santoso Banu
Published: March 2021

The purpose of this study is to analyze the success of ERP systems in Indonesia for companies that have implemented ERP systems. There are various kinds of companies with different business fields, such as manufacturing, mining, oil and gas, information technology and construction companies. The method used to achieve this research goal is through the study of literature, by selecting ERP references that support, starting from the theory, framework and information resources. The population involved is the end-user ERP, which consists of various types of industries that have implemented an ERP system. The results of this study indicate the measurement of system quality, service quality, information quality, benefits obtained, user satisfaction and ERP system benefits.
Applying an integrated production system based on social manufacturing to develop a medical device
Authors: Sari Marti Widya , Herianto  , Dharma IGB Budi , Tontowi Alva Edy
Published: March 2021

In the current Covid-19 pandemic, many manufacturing industries have been affected, including the health industry. The need for medical devices during this pandemic was very high, causing scarcity of goods on the market, and high selling prices, because most medical devices had to be imported. The concept of social manufacturing can be one way to revive the health industry in Indonesia. The purpose of this research is to develop an integrated production system through social manufacturing by involving small and medium companies and measuring the competitive level of production results from the quality side. The method used in this research is starting from literature study, field observation, production system design, product and system testing, and analysis of social manufacturing based production system test results. The results of this study are a social manufacturing-based production system for medical device products in the form of a Sanitation Chamber, and also the measurement of product quality in terms of performance (83.20), features (80.40), reliability (79.56), conformance (81.11), durability (84.67), service ability (78.33), aesthetics (81.83) and perceived quality (79.83).
Electron lenses in RHIC: status and prospects
Authors: Fischer W. , Gu X. , Blaskiewicz M. , Drees K.A. , Liu C. , Luo Y. , Marusic A. , Montag C. , Minty M. , Ptitsyn V. , Robert-Demolaize G. , Palmer R. , Schoefer V. , Thieberger P.
Published: March 2021

Two electron lenses are installed in Relativistic Heavy Ion
Collider (RHIC). They were used as operational head-on beam-beam
compensators in proton-proton collisions, with Gaussian transverse
electron beam profiles. One of the lenses was also used with a
hollow transverse profile to test hadron beam halo removal under
various conditions. Although presently not in the design, the lenses
may find applications in the Electron-ion Collider (EIC) for either
collimation or beam-beam mitigation.
Pulsed electron lenses for space charge compensation in the FAIR synchrotrons
Authors: Artikova S. , Boine-Frankenheim O. , Meusel O. , Oeftiger A. , Ondreka D. , Schulte-Urlichs K. , Spiller P.
Published: March 2021

The FAIR heavy-ion synchrotrons SIS18 and SIS100 as part of
the new FAIR accelerator facility at GSI will be operated at the
“space charge limit” for light and heavy-ion beams. In SIS100 beam
loss due to space charge induced resonance crossing should not
exceed a few percent during the 1 s injection plateau. In order to
further increase the beam intensities beyond the FAIR reference
parameters, a new concept of (partial) space charge compensation by
pulsed electron lenses is considered. We describe the general space
charge compensation concept together with detailed simulations
results. A prototype lens for SIS18 is presently under development
and will be used to validate the concept. This new approach, aiming
for mitigating the most prominent intensity limitation, should be
applicable to many of the existing large scale proton and heavy-ion
synchrotrons world wide.
Consumer purchasing behavior: an empirical study of livestock products food
Authors: Muzayyanah M A U , Syahlani S P , Dewi N H U , Wahyuni E
Published: March 2021

Food consumption is not only measured by the quantity consumed but also by how consumers make decisions in purchasing food. This article studies consumer purchasing behavior in association with socio economics determinants with respect to selected livestock products foods. In this study, the primary data were collected by the structured questionnaire and conducted to 366 households’ respondent. Simple statistical analysis such as descriptive statistical analysis, frequency distribution, cross tabulation, and analysis of variance analysis was used to assess socio-demographic factor and the consumers’ purchasing decision for beef, chicken, and egg products. Results indicate that a higher income and educational level of consumers influences their decisions on expensive food such as beef while gender and education seems to have no significant impact on common food such as chicken and egg which are most frequently purchased from nearby markets even for chicken with delivery service are preferred by the respondent
Cost estimation of crop residue burning machine
Authors: Sulastri N N , Holcomb R , Long J , Buser M
Published: March 2021

The purpose of this study was to determine the cost of crop residue burning machine application based on several factors affecting its cost. Additionally, the cost was compared to the cost of prescribe burning practice. The total cost was determined by calculating fixed and variables costs. Those costs were computed mostly based on equations on ASAE EP496.2 DEC99 and ASAE D497.7 MAR2011(R2015). A Microsoft Windows®application was developed to systematically estimate the cost of the developed burning machine and to provide an additional tool for management decisions. Using the assumption of a-5 feet working width of the burning machine, the machine field efficiency of 60%, the travel speed of 1.9 mph, and a-20 acre of burn unit the total cost of burning practice using the developed burning machine was $164.78 which is comparable to prescribed burning cost on 134 acres of the burn unit. The important factor affecting the cost of the machine operation was the construction of firebreak and the acreage of machine use.
Study of environmental management based on peri-karst community interaction pattern (case study: Long Lanuk Village, Sangkulirang-Mangkalihat karst area, East Kalimantan)
Authors: Siswanto A D , Haryono E , Baiquni M , Fathoni W A , Hakim A A
Published: March 2021

Peri-karst is an area located on the outside of karst formations but still the habitat of trogloxene and stygoxene. Long Lanuk village located on Peri-Karst zone of the Sangkulirang-Mangkalihat Karst area. The exploration of the natural resources in Long Lanuk village trigger changes in the pattern of community interaction. The research aims to discover (1) the factors that affect the sustainability of the environment caused by the interaction of behavioural pattern of Peri-Karst community; (2) analyse the level of sustainability of the Peri-Karst on society and (3) formulate management strategies related to the sustainability of Peri-Karst livelihood in the Karst area of Sangkulirang-Mangkalihat, East Kalimantan. The level of sustainability is analysed using the method of Multi-Dimensional Scaling which are categorized into four (4) dimensions, i.e. the dimension of environmental, economy, social and culture.

The results of research regarding the level of sustainability of the Peri-Karst community in Long Lanuk Village based on the method of Multi-Dimensional Scaling shows: on the environmental dimension of attributes that have a high sensitivity value was the level of disruption of the industry has a value of 1,85. On the Economic Dimension, the attribute that has high sensitivity was the nest of the Swallow has a value of 2,4. The Attribute of Social Dimension which has high sensitivity was the potential for social conflict has a value of 2,3. The attribute of the cultural dimension that has a value of high sensitivity was the opportunity to make crafts has a value of 1,95.
Soil losses and runoff variabilities in varieties of surface coverages
Authors: Tirtalistyani R , Ngadisih  , Irhamnia R , Alfiani E W
Published: March 2021

Soil erosion is a natural phenomenon of a landscape system. However, its occurrence has become a threat to the environment and human welfare when populations and human needs increase, especially in agriculture. Erosion can lead to soil deprivation and reduction of soil fertility that resulted in the decline of agricultural productivity and loss of arable land. Complex processes of soil erosion due to detachment, transport, and deposition, strictly depend on climatic, topographic, and biotic factors. Erosion can be worsened by extreme climate, that lately overrides, as the key-geomorphological process of erosion. Therefore, this research is aimed to understand how biotic factors such as different surface coverages can affect erosion within marginal agricultural soil. This study developed a small-scale erosion simulator with erosion pans and rain simulator. Standard small size erosion pan with width x length x depth of 32 x 45 x 20 cm and slope of 10° was used to simulate the erosion processes. Two erosion pans were planted with peanut (Arachis hypogaea) and shallot (Allium cepa var. Aggregatum). Furthermore, the other two were covered by litter and bare soil. Rain simulator was installed in 3 m of height and produced approximately 160 mm/hr of rain. Runoff water and eroded soil were collected and analyzed to find the amount of soil and water losses. From this experiment, it has shown that our proposed small-scale erosion simulator effectively demonstrates erosion and water runoff. This study found that soil erosion rates among plots were highly variable associated with the type of surface coverage. Variabilities soil coverage decrease the impact of raindrop and soil detachment.
Wireless sensor networks for agriculture systems
Authors: Sorokin I
Published: March 2021

This article describes the implementation of a wireless sensor network for monitoring the state of the environment in greenhouses. A distinctive feature of the work is low power consumption, low cost and the ability to monitor the entire history of measurements in real-time.
Classification of Dried Chilli Quality Using Image Processing
Authors: Azis Y A , Khuriyati N , Suyantohadi A
Published: March 2021

Chillies are a high-value export commodity. One of the chilli products that has a high export value, such as to the European market, is dried red chillies. Dried chillies’ quality is the main parameter that must be maintained if this commodity is to be continuously exported. This study aimed to precisely and accurately classify the quality of dried chillies using physical parameters of the length and color of chillies based on digital image processing. In this research, the quality of dried red chillies was classified using a combination of digital image processing and artificial neural networks (ANN). The quality parameters of dried chillies used as inputs were chilli length, mean energy, mean a*, mean blue, and mean contrast. This study used 150 dried chillies for training data and 36 samples for test data. The classification of the quality of dried red chilli was divided into three classes, which were extra class, class I, and class II. The result of this study was an artificial neural network structure consisting of 5 input layer cells, 16 hidden layer cells, and two output layer cells. The testing of the system using 36 testing data that determined the values of dried chillies reached 94.4%.
The potential of Biogas Sludge Dairy Cattle with Fortification of Expired Milk Powder Waste and Eggshell as a Planting Media of White Oyster Mushroom (Pleurotus florida) on Mycelium Growth
Authors: Sirajuddin M M , Muhlisin  , Pertiwiningrum A
Published: March 2021

This study aimed to determine the nutrient content of the growing media of sludge biogas waste from dairy cattle and expired milk waste and the growth of white oyster mushroom mycelium (Pleurotus florida). This study uses mixed media from dairy cattle biogas sludge waste and expired milk powder with different concentrations divided into 4 media treatments, 4 treatments then performed 3 repetitions to obtain 12 experimental units, the treatment is given code P0, P1, P2, P3 which has a media composition in the form of sawdust, biogas sludge, expired milk powder waste and eggshell, each treatment is distinguished in different concentrations of sludge and expired milk powder with different proportions namely P0 (0%: 0%), P1 (50%: 50%), P2 (25%: 75%) P3: (75%: 25%), P0 is used as a control because it does not use the two combination ingredients but uses bran as a source of nutrients and is a proportion commonly used by oyster mushroom farmers. Each media was then tested for its chemical content including water content, organic matter, crude fiber, C-organic, nitrogen, P-Total, and potassium. Then for the growing mycelium variable observed were the mycelium length, the percentage of growth of oyster mushroom mycelium, the first time to grow, and the time to fulfill mycelium. The data was processed using analysis of Variance-Completely Randomized Design Unidirectional and the average difference was tested using Duncan’s Multiple Range Test (DMRT). Mushroom media nutrient content test results showed that the best results were in the planting media of sludge biogas waste from dairy cattle and expired milk waste in P3 treatment (75% dairy biogas sludge: 25% of expired milk waste) was able to increase nutrient in a c-organic variable, crude fiber, C / N ratio, and potassium are 19.61%, 57.43%, 3.179%, and 0.887%. The best results of mycelium growth in this study were the planting media of dairy cattle biogas sludge waste and expired milk waste in P2 treatment (25% of dairy cattle biogas sludge: 75% of expired milk waste) which was able to produce the best growth of the average variables of the daily mycelium length, percentage of growth mycelium, first time to grow and time to fulfill mycelium is 3.73 cm, 27.42%, 4.33 days and 26.33 days. In this study, it can be concluded that the planting media from dairy cattle biogas sludge waste with the fortification of expired milk powder waste can be potentially used as an alternative media other than bran at the same time can increase the nutrient content in the mushroom media and stimulate the growth of mycelium better.
Ameliorating Sandy Soil Properties: Application of Mathematical Model to Explore Spinach (Amaranthus tricolor L.) Plant Response
Authors: Ngadisih  , Krisnawati M , Maftukah R , Murtiningrum  , Rico R , Nadeak D U C , Nugroho B D A
Published: March 2021

Amelioration is an effort to increase soil fertility by manipulating chemical and physical properties of the soil. In this study, biochar and manure were adopted for ameliorating sandy soil. The purposes of this study were to identify the response of spinach plants, to apply mathematical model for exploring spinach plant growth, and to determine the appropriate ameliorant dosage. The ameliorant were rice husk biochar and poultry manure. The study was conducted in a greenhouse with 4 different dose comparisons (in kg; sandy soil: rice husk biochar: poultry manure), i.e. 1: 0: 0 (C), 1: 0.007: 0 (B), 1: 0.0035: 0, 0035 (MB1), and 1: 0.007: 0.007 (MB2). Each treatment was repeated 5 times in a Complete Block Design. Growth parameters observed were plant height, number of leaves, and plant weight. Observation was carried out for 70 days. The analysis used was one-way ANOVA test, Turkey test, logistic equation and exponential polynomials models, and linear regression. The study revealed that the best spinach growth response by MB1. The growth rate from plant height side of C, B, MB1, and MB2 treatments were -0.0509, -0.0406, -0.0556, and -0.0489 respectively. In terms of number of leaves, the optimum of growing period of C, B, MB1, MB2 treatments were 48, 65, 96, and 66 days after planting respectively. One-way ANOVA test showed that rice husk biochar and poultry manure ameliorant had a significant effect on plant growth both height and number of leaves (sign. <0.05). While, the wet and dry weight were not significantly effect (sign. > 0.05). Mathematical model with logistic and exponential equations were acceptable to describe spinach plant growth (R2> 80%). Ameliorant rice husk and poultry naure 5 tons ha/ha (MB1 treatment) was recommended for optimum spinach growth in sandy soil.
Water, Sanitation and Hygiene Practices in Ogun State: Impacts and Implications for Post-COVID-19 Era
Authors: Olukanni D O , Iyiola D O , Esu C O
Published: March 2021

Globally, access to safe Water, Sanitation, and Hygiene (WaSH) services play an essential role in safeguarding the health and well-being of individuals and communities. This study focuses on the assessment of WaSH Practices in Ogun State, Nigeria. A survey was carried out with a total of 500 questionnaires administered evenly in 5 selected Local Governments Areas (LGAs) based on population, landmass, spatial location, and distribution. The convenience sampling technique was used to select locations within the study areas. The evaluation of WaSH practices was based on the availability of treated water, methods of waste disposal, sanitation and hygiene-related facilities, and awareness program in the communities, respectively. The result shows that 61.2 % of the respondents have access to treated water. Thirty-six percent of the respondents agreed to the use of open dumping system for their waste disposal, 24.6% use collection trucks while the rest bury or burn their wastes. Forty-five percent of the respondents are unaware and unexposed to hygienic conditions. The WaSH standard attained by these communities implies an average healthy living standard for the people, which complies with the data obtained from health centers showing the rate of compliance associated with WaSH related ailments. The results of this study provide useful information on the consequences of poor hygiene practices and sanitation facilities for both residents and authorities. The data can serve as a blueprint to government or private organizations working towards upgrading standard of WaSH practices, which would assist in providing appropriate facilities towards enforcing safe hygiene practices at all levels against the spread of the current global pandemic-COVID-19.
Modelling the relationship between climatic variables and land use/land cover classes in Yewa South Local Government Area of Ogun State, Nigeria
Authors: Ojo S A , Olusina J O , Ngene B U , Olukanni D O
Published: March 2021

Climate change and land use/land cover (LULC) change are among the global environmental issues that have recently dominated international debates in order to monitor earth resources. The burning of fossils fuels, clearing of land and burning of bush has given rise to the highest levels of greenhouse pollution in the atmosphere. It is on this note that this study was carried out to determine the effect of climate change on land use/land cover change of Yewa South Local Government Area of Ogun State in Nigeria. The supervised parallelepiped classification scheme was used to classify land use land cover into five classes namely agriculture land, built-up, vegetation, wetland and water body. A multivariate linear regression model was developed and program in MATLAB to model the relationship between climatic variables namely, rainfall (mm), average temperature (°C), evaporation (mm), relative humidity (%), average soil temperature (°C) and some particular land use/land cover variables. After statistical analysis between climatic variables and land use/land cover classification, results indicated a significant relationship between climatic variables and land use/land cover change. The statistical analysis between the variables shows that the climatic parameters has an accuracy of 84.12% prediction model for land use/land cover classification.
Geographic Information System application in flood risks prevention, hazards reduction and planning
Authors: Adeyemi G A , Siyanbola F , Oniemayin B I , Ode G O , Bamigboye G O
Published: March 2021

The effects of Flood hazard mapping and flood inundation modelling in saving lives and properties in our societies cannot be overemphasized. Haphazard land use planning and lack of compliance to rules and regulations concerning setbacks have been observed to worsen the impacts of flooding and equally pose as major contributing factors to the exposure of people to flood risks in the study area. The study aimed at determining the built areas within the floodable area. Integrated Geographic Information System (GIS) and Remote Sensing were utilized to analyze the topographic data and the land use data generated from the satellite imagery of the area. The study revealed that nearly half of the buildings and infrastructures in the study area lie within the flood plain. Applications of GIS and Satellite Imagery analysis techniques were used to estimate the population at risk of flooding in the study area. We submit that space based and Geospatial data analysis and applications in flood risks assessment and planning prior to infrastructural development would go a long way in the preservation of lives and properties and prevent great economic loss as a result of flooding.
Management of Infrastructures in Water Sector: A Veritable Tool for Healthcare and Sustainable Development in Nigeria
Authors: Oyebode O J , Coker A O
Published: March 2021

There are a lot of health issues traceable to water sector in most developing nation of the world. Despite water rights and lots of researches in water resources engineering, strategic management of infrastructures still requires urgent and adequate attention for better healthcare delivery and sustainable development in Nigerian water sector. This paper assessed the operations of government, private and agencies involved in the supply and management of water resources. Data were collected through reconnaissance survey, literature review and interview of stakeholders in selected establishments. Challenges of this sector were checked and appraised with special focus on health implications, adequacy of supply, management and maintenance of infrastructures. Current trends within the administration of development comes were checked. Strategic management tools were place in place for effective handling of care, adequate funding, capability building, technological advancement and innovation in water sector. The study concluded that adequate attention should be given to strategic management of water sector to tackle healthcare issues and water challenges for accomplishment of infrastructural development in Nigeria. It was recommended that government; engineers, researchers and all stakeholders should embrace productive activity, viable policies, pollution management, innovative analysis, acceptable funding, technological advancement, manpower development and sanitation of water sector in all ramifications.
Comparative study on the effects of guar gum nanocomposite and guar gum polymer solutions on enhanced oil recovery
Authors: Sowunmi A , Efeovbokhan V E , Orodu O D , Ojo T
Published: March 2021

Guar gum is a polysaccharide that occurs naturally, and has useful properties in thickening and stabilizing. This makes it of interest in enhanced oil recovery, because of its ability to increase the sweep efficiency of the recovery process. Also, guar gum has an economical and reliable supply as well as flexible chemistry. Guar gum, however, cannot interact with oil-rock surface or the oil-water interface, thereby limiting its capacity to recover crude oil. Nanoparticles can, therefore, be mixed with guar gum to increase its recovery potential. Silicon oxide nanoparticles can be combined with a polymer to form a polymer nanocomposite, which can then be used to increase the overall efficiency of the crude oil recovery process. In this study, the viscosity profile of guar gum was investigated under different conditions of temperature and weight percentages. Four temperatures were investigated: 30, 50, 75, and 90°C. Six weight percentages were also investigated in the viscosity tests: 0.1, 0.2, 0.3, 0.4, 0.5, and 1. The oil recovery potential of guar gum and guar gum nanocomposite was also investigated at different weight percentages. Across the six weight percentages used in the viscosity study, it was observed that there was an average percentage loss in viscosity of 33 % as the temperature was increased from 30°C to 90°C at the highest shear rate of 1021 s-1. At 30°C, the viscosity of guar gum was seen to increase by close to 1000 % as weight percentage was increased from 0.1 to 1. The recovery factor observed during core flooding tests utilizing guar gum at three different concentrations indicated an increment of 48, 51, and 54% respectively. On addition of silicon oxide nanoparticles at different concentrations, oil recovery was enhanced by 54 % to 67.2 % OOIP. This validates the recovery potential of guar gum for enhanced oil recovery.
Building Collapse in Nigeria during recent years – Causes, effects and way forward
Authors: Awoyera P O , Alfa J , Odetoyan A , Akinwumi I I
Published: March 2021

Building collapse in Nigeria in the last few decades is a growing concern for investors and the government alike. Many of the documented cases of building collapse in Nigeria are due to the use of defective or substandard building materials, no requisite technical knowledge, non-adherence to building codes and standards, the use of non-professionals and the high level of corruption which has ravaged every sphere of the construction industry including government and private parastatals. In addition to the established causes of the collapse of structures, empirical data from developed countries of the world has shown that many of the recorded cases in this climes are due to the fact that the current codes of practice do not make provisions for unexpected loads and an unexpected failure of a single member may lead to an all-round collapse of the entire structure. This study critically highlights the collapse cases of buildings in Nigeria and provides recommendations to halt this growing concern. It seeks to shed further light on these causes and the likelihood for the continued collapse of buildings in Nigeria if measures are not urgently and strategically put in place by all concerned stakeholders. It also seeks to reduce the impact of man-made phenomena on buildings through awareness and policy formulation by the government.
Comparative Cost Analysis of Reinforced Concrete and Timber Floor System for Effective Low Housing Scheme
Authors: Oyedepo O J , Olanitori L M
Published: March 2021

In Nigeria, housing is grossly inadequate especially in urban area due to migration from rural area to urban area which results in poor environmental quality. In this paper, the cost analysis of 6 m x 6 m square suspended floor, constructed with reinforced concrete and wooden floor for housing units was carried out. The results show that wooden floor system is 21.6% cheaper than using reinforced concrete in construction. The use of timber in building construction should be encourage, as it will minimize the dead load and reduces the cost of building construction that will be sustainable and affordable for the low income earners.
Assessment of construction sites’ accident: strategies for sustainable construction
Authors: Ijaola I A , Akerele A O , Omolayo O H
Published: March 2021

Diverse causes of accidents abound on construction sites and these have negative impacts on the construction process. These negative impacts are enormous, leading to non-sustainable construction. However, achieving sustainable construction requires reduction in the occurrence rate of accidents. The aim of this study is to investigate the occurrence rate of accident types on construction site. Accident types were majorly categorised into four namely, earth moving machinery, electrocution, construction fall, and others. From the positivist research paradigm and adopting cross-sectional survey research design, questionnaires were used to elicit information from personnel on construction sites. The mean of the occurrence rate of accidents was calculated. Findings show that construction site fall has high occurrence rate while earth moving machinery, electrocution and others have moderate rate of occurrence. The study concludes that the most frequently occurring type of accidents on construction site is construction fall.
Potentials of Cement Kiln Dust-Periwinkle Shell Ash Blends on Plasticity Properties of Two Selected Tropical Soils for use as Sustainable Construction Materials
Authors: Ekpo D U , Fajobi A B , Ayodele A L , Etim R K
Published: March 2021

This paper investigated the effect of cement kiln dust (CKD) and periwinkle shell ash (PSA) on the plasticity characteristics of two lateritic soil. Two Soils (termed soil A and B) were collected from two selected locations within Osun State, Nigeria. Air-dried soil was treated with CKD and PSA blend in order of 0, 5, 10, 15, and 20% for CKD and 0, 2, 4, 6, 8 and 10% for PSA by dry weight of soil. The specific gravity of both soils increased with increase in CKD and PSA fillings. The Index properties such as Atterberg’s limit (liquid limit, LL, plastic limit, PL, and plasticity index, PI), percentage fines content of the soils was determined. The index properties results showed that the two soils are clayey soil of low plasticity. There was a general decrease in the Atterberg’s limits (liquid limit, LL and plastic limit, PL). The scan electron microscopy (SEM) and electron diffraction spectroscopy of treated soil revealed the formation of crystalline products of calcium silicate hydrate (CSH) and calcium aluminate hydrate (CAH) which was responsible for strength gain. Based on preliminary investigations, the study concluded that the combination of CKD-PSA blends is a viable stabiliser for the two tropical soils under consideration to be used as sub-base construction.