bluuebunny/crossref_metadata_2025 huggingface dataset:
Genetic Diversity Studies on Important Panicle Traits in Rice (Oryza sativa L.)
Authors:   Tamil Nadu Rice Research Institute, Aduthurai - 612 101, R Saraswathi , A Mahalingam ,   Tamil Nadu Rice Research Institute, Aduthurai - 612 101, T Jayaraj ,   Tamil Nadu Rice Research Institute, Aduthurai - 612 101
Published: May 2023

An investigation was carried out at Tamilnadu Rice Research Institute, Aduthurai during Thaladi 2009 with 125 advanced breeding lines of 23 rice cross combinations to study the nature and magnitude of genetic divergence through mahalanobis D2 statistics. Observations were recorded on important panicle traits viz., panicle length, number of filled grains per panicle, panicle exertion and 100 grain weight. The breeding lines were grouped into 42 clusters. The cluster I contained highest number of genotypes (40) followed by cluster II, XXXXI, and XXXXII which had three genotypes each, the remaining 39 clusters had two genotypes each. The intra cluster distance was highest in cluster XXXXII (14.59), followed by cluster XXXXI (14.28) and cluster II (14.12). It was the lowest (0.66) in cluster III. Highest inter cluster distance was noticed between clusters XXXX and XXXV (30.35), followed by clusters XXXX and XXX (30.30), cluster XXXX and XXVIII (30.05) and lowest between clusters XIII and IV (2.04). Hundred grain weight contributes 57.67 per cent and panicle exertion contributes 19.60 per cent to the total genetic divergence. From this study it was concluded that sufficient amount of variability was observed among the breeding lines developed in the crosses viz., ADT 43/ Tapaswini, ADT 46 (R)/ IET 17917, ADT 39/ AD 02202, ADT 39/ Kalinga, ASD 19/ T 317 which may be used as parents to produce highly heterotic and superior transgressive segregants upon hybridization for important panicle traits.
Evaluation of Rice Hybrids for Heterosis of Yield and Yield Attributing Traits over Locations
Authors:   Hybrid Rice Section, Crop Improvement Division Directorate of Rice Research, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, India, P Saidaiah , M S Ramesha ,   Hybrid Rice Section, Crop Improvement Division Directorate of Rice Research, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, India, S Sudheer Kumar ,   Hybrid Rice Section, Crop Improvement Division Directorate of Rice Research, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, India, A A. Geetha ,   Hybrid Rice Section, Crop Improvement Division Directorate of Rice Research, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, India
Published: May 2023

The extent of heterobeltiosis and standard heterosis of ten characters of one hundred and fifteen rice hybrids developed by crossing five CMS lines and 23 testers in line x tester fashion were evaluated under irrigated conditions during kharif, 2008 over three locations viz., Hyderabad, Warangal and Jagtial representing different agro climatic zones in Andhra Pradesh, India. The pooled analysis of variance (line x tester) revealed significant differences among locations and genotypes for all the characters studied. The line x tester interactions contributed up to 71.89 per cent for days to 50% flowering followed by productivity per day (68.54%), grain yield per plant (67.69%) and spikelet fertility per cent (66.02%). The highest percentage of average heterosis was observed for productive tillers per plant followed by productivity per day and grain yield per plant whereas the highest percentage of standard heterosis was observed for filled grains per panicle and flag leaf width. Pooled standard heterosis for grain yield plant-1 was manifested through panicle weight, number of filled grains panicle-1 and productivity day-1. Negative standard heterosis was observed for days to 50% flowering due to earliness in six hybrids over standard checks KRH 2 and PA 6201. Five crosses viz., APMS 6A x 1005, APMS 6A x GQ-25, PUSA 5A x IR 43, APMS 6A x SC5 9-3 and PUSA 5A x KMR-3 were identified as potential hybrids with more than 28% standard heterosis for grain yield over better yielding commercial hybrid check KRH2. Testing of these hybrids in all India coordinated trials across different states of the country may result in identification of better hybrids in the near future for commercial exploitation.
Line X Tester Analysis in Rice (Oryza sativa L.)
Authors:   Department of Plant Breeding and Genetics,N.M. College of Agriculture, Navsari Agricultural University, Navsari-396 450 (Gujrat) INDIA, P R Patil , V H Surve ,   Department of Agronomy N.M. College of Agriculture, Navsari Agricultural University, Navsari-396 450 (Gujrat) INDIA, H D Mehta ,   Regional Rice Research Station, Vyara, Dist. Surat (Gujrat)
Published: May 2023

Line x tester analysis using a set of three females (Lines) and eight males (testers) was carried out to estimates the extent of combining ability for yield and its components in rice (Oryza sativa L.). Experimental material comprising eleven parents, their twenty four hybrids were planted in a randomized block design with three replications during kharif 2007 at the National Agricultural Research Project farm, Navsari Agricultural University, Navsari. Combining ability analysis revealed that, sca variances were higher than gca variances for all the characters except days to maturity which indicated non-additive gene action in the expression of the traits, although non-additive gene action was predominant in the expression of most of the traits. The estimation of gca effects for parents indicating that males Sathi 34-36, GR-5 and female Jaya were the best general combiners for grain yield per plant and some yield contributing traits. The best specific crosses combinations are GR-11 x Sathi 34-36, Jaya x GR-103 and Jaya x IR-28 of either average x good, good x poor or good x average combination.
Variability in Physico-Chemical Characteristics of Ber (Zizyphus mauritiana Lamk) Varieties Under Rainfed Conditions of Shivalik Foothills of Himalayas
Authors:   Rainfed Research Sub-Station for Sub-Tropical Fruits, Raya, SKUAST-Jammu, J&K 181143, Gupta Neeraj , V K Wali ,   Division of Pomology, Main Campus Chatha, SKUAST-Jammu J&K 180009, V B Singh ,   Rainfed Research Sub-Station for Sub-Tropical Fruits, Raya, SKUAST-Jammu, J&K 181143, Bakshi Parshant ,   Division of Pomology, Main Campus Chatha, SKUAST-Jammu J&K 180009, Jamwal Mahital ,   Division of Pomology, Main Campus Chatha, SKUAST-Jammu J&K 180009, Kumar Vijay ,   Rainfed Research Sub-Station for Sub-Tropical Fruits, Raya, SKUAST-Jammu, J&K 181143
Published: May 2023

Five ber varieties were evaluated for various physico-chemical characteristics and fruit rot incidence during 2010 and 2011. Highest fruit weight (21.2 g) and fruit yield (99 kg tree-1) was recorded in cultivar Sanour 4 and the minimum 8.8 g and 63 kg tree-1 was observed in ZG 2. Fruit length, TSS, acidity and ascorbic acid varied from 2.4 to 5.0 cm, 12.95 to 25.45 per cent, 0.41 to 0.74 per cent and 77.9 to 123.3 mg 100 g-1, respectively. Varieties viz. Ranjari Selection- 1, Ranjari Selection-2, Raya Selection and ZG-2 showed highest per cent fruit rot (19.5-32.0), while it was minimum (10 %) in Sanour-4.
Influence of System of Rice Intensification on Yield, Water Use and Economics Through Farmers’ Participatory Approach
Authors:   Department of Agronomy, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai - 625 104, R Veeraputhiran , R Balasubramanian ,   Department of Agronomy, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai - 625 104, B J Pandian ,   TN- IAMWARM, Water Technology Centre, Tamil Nadu Agricultural University, Coimbatore - 641 003., M M. Chelladurai ,   Department of Agronomy, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai - 625 104, R Tamilselvi ,   Department of Agronomy, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai - 625 104, V G Renganathan ,   Department of Agronomy, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai - 625 104
Published: May 2023

Eight hundred and thirty two on-farm demonstrations on System of Rice Intensification (SRI) were carried out in six hundred hectares of farmers fields in Sivagangai and Madurai districts of Tamil Nadu from 2007-08 to 2010-11 under Tamil Nadu-Irrigated Agriculture Modernization and Water Bodies Restoration and Management (TN – IAMWARM) Project. Two methods of rice cultivation viz., SRI and Conventional were compared. The results of large scale on - farm demonstrations revealed that adoption of SRI favorably influenced all the yield attributes of rice viz. number of tillers m-2 and numbers of grains panicle-1. Superiority of SRI in terms of grain yield was also evident due to 24.0 per cent yield increment than conventional method of rice cultivation. Higher grain yield coupled with substantial water saving to the tune of 24.3 per cent resulted in higher Water Use Efficiency of rice under SRI method. Higher gross income, net income and benefit cost ratio were also associated with SRI than - conventional method of rice cultivation. The cost of cultivation was comparatively lesser in SRI which resulted in an additional net profit of Rs.13,340 ha-1 as compared to conventional method of rice cultivation.
Productivity and Profitability of Pop Corn, Composite and Hybrid Maize (Zea mays L.) Under Low Nitrogen Stress in Mollisols of Uttarakhand
Authors:   College of Agriculture, G.B. Pant University of Agriculture & Technology, Pantnagar-263 145, M S Pal , Bhatnagar Amit ,   College of Agriculture, G.B. Pant University of Agriculture & Technology, Pantnagar-263 145
Published: May 2023

A field experiment was conducted during kharif 2006 and 2007 at G. B. Pant University of Agriculture and Technology, Pantnagar to study the effect of nitrogen stress on productivity and profitability of pop, composite and hybrid corns in Mollisols of Uttarakhand. Significantly higher productivity and profitability was observed at 80 kg than 60 and 40 kg nitrogen application mainly because of better plant growth and yield attributes. Among the maize cultivars, ‘Him-129’ (hybrid) proved more productive and profitable than pop corn ‘VL Amber’ and composites ‘Pragati’ and ‘Vivek-11’.
Productivity and Economics of Rainfed Rice as Influenced by Integrated Nutrient Management
Authors:   Department of Soil Science and Agricultural Chemistry, College of Agriculture, V.C. Farm, Mandya – 571 405, Karnataka., R Krishna Murthy
Published: May 2023

Continuous use of chemical fertilizers without organic sources would lead to gradual decline of organic matter content and nutrient status in the soil, which results in lower rice production. It is well recognized that fertilizer use has a key to play in modern agriculture in increasing the productivity of rice both under rainfed and irrigated conditions. The present investigation was undertaken to study the effect of recommended dose of fertilizers in combination with parthenium and chromolaena as green manure and their compost on production and economics of rainfed rice cultivation in relation to soil properties. A field experiment was conducted at farmer’s field, Aldur village, Chickmagalore taluk, Chickmagalore district, Karnataka state under rainfed condition. The soil of the experimental site was Typic Paleustalf. The treatment which received recommended dose of fertilizers in combination with chromolaena compost @ 7.5 t ha -1 recorded better plant height than that of control and treatment which received recommended dose of fertilizers alone at tillering, panicle initiation and at harvest stages. Similarly yield attributes of rice such as, number of grains per panicle, thousand grain weight and number of panicles per square meter were significantly higher in treatment received recommended dose of fertilizers and chromolaena compost @7.5 tonne per hectare than control. It can be concluded that the application of both parthenium and chromolaena @ 7.5 t ha -1 improves the growth and yield parameters and grain yield and also the nutrient status of the soil.
Phosphorus Management in Greengram-Safflower Sequence on Shrink-Swell Soils of Maharashtra
Authors:   Department of Soil Science and Agricultural Chemistry, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (Maharashtra)., V V Gabhane , B A Sonune ,   Department of Soil Science and Agricultural Chemistry, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (Maharashtra)., S M Harle ,   Department of Soil Science and Agricultural Chemistry, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (Maharashtra)., A N Paslawar ,   Department of Soil Science and Agricultural Chemistry, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (Maharashtra)., D V Mali ,   Department of Soil Science and Agricultural Chemistry, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (Maharashtra).
Published: May 2023

A study was conducted on phosphorus management in greengram-safflower sequence at Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra during 2006-2007 in shrink-swell soil. The twelve treatments and three replications designed in RBD consisted of 100% RDF (20:40:20 NPK kg ha-1 to greengram and 25:25:25 NPK kg ha-1 to safflower), 50% recommended P, No P, 50% recommended P + PSB (25 g kg-1 seed), 5 t FYM ha-1, 5 t FYM ha-1 + PSB applied in various combinations to greengram in kharif and safflower in rabi season. The results indicated that the treatment receiving 50 per cent P (20 kg ha-1 to greengram and 12.5 kg ha-1 to safflower) + PSB along with recommended dose of nitrogen (20 kg ha-1 to greengram and 25 kg ha-1 to safflower) and potassium (20 kg ha-1 to greengram and 25 kg ha-1 to safflower) to greengram and safflower was found to be beneficial in improving the soil fertility status, comparable crop productivity and economic returns with 100 per cent recommended phosphorus to both the crops.
Influence of Foliar Nutrition on Growth and Yield of Transplanted Rice
Authors:   Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641 003, N Jagathjothi , P Muthukrishnan ,   Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641 003, Amanullah M. Mohamed ,   Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641 003
Published: May 2023

A field experiment was carried out at the wetland of Tamil Nadu Agricultural University, Coimbatore during Navarai (Dec - Jan) season 2010–11 to investigate the effect of foliar nutrition on growth, yield attributes and yield of rice. The experiment was laid out in a randomized block design with twelve treatments replicated thrice. The results revealed that combined application of organic and inorganic sources with foliar spray had enhanced effect on growth and yield of rice crop over application of chemical fertilizers or organic sources alone. Among the nutrient management treatments, the plant height, dry matter production, number of tillers, yield attributes and yield of grain (5631 kg ha-1) and straw (7647 kg ha-1) were the highest with recommended integrated nutrient management (INM) practice +2% urea phosphate spray at panicle initiation and 10 days later. However the yield was comparable with recommended INM practice + 2% DAP spray at panicle initiation and 10 days later and recommended INM practice + 1% urea phosphate spray at panicle initiation and 10 days later.
Cadmium Contamination of Agricultural Soils in Catchment of Yamuna Ravine: Response of Sulfur on Yield and Quality of Oat
Authors:   Central Soil and Water Conservation Research and Training Institute, Research Centre, Chhalesar, Agra 282 006, Uttar Pradesh, India, J S Deshwal , R K Dubey ,   Central Soil and Water Conservation Research and Training Institute, Research Centre, Chhalesar, Agra 282 006, Uttar Pradesh, India, S K Dubey ,   Central Soil and Water Conservation Research and Training Institute, Research Centre, Chhalesar, Agra 282 006, Uttar Pradesh, India, Singh Vinay ,   Central Soil and Water Conservation Research and Training Institute, Research Centre, Chhalesar, Agra 282 006, Uttar Pradesh, India
Published: May 2023

Continuous use of diammonium and single super phosphates having traces of cadmium (02 to 200 ppm) is contaminating agricultural soils. In order to assess the levels of cadmium contamination of semiarid Indo-gangetic soils in Yamuna ravines and crop quality, a green house study was conducted in oat crop with four levels (mg kg-1 of soil) each of cadmium (Cdo: 0, Cd1: 12.5, Cd2: 25.0 and Cd3: 50.0) and sulfur (So: 0, S1: 12.5, S2: 25.0 and S3: 50.0) in factorial randomized block design. Results revealed that increasing Cd doses significantly decreased grain (3.98 g pot-1 in Cd0 to 2.50 g pot-1 in Cd3) and straw (5.59 g pot-1 in Cd0 to 4.07 g pot-1 in Cd3) yields. Increasing Cd doses significantly enhanced Cd (g pot-1) in biological harvest (2.7 in Cd0 to 7.3 in Cd3 in grain and 5.8 in Cd0 to 23.2 in Cd3 in straw) and decreased S (g kg-1) in biological harvest in treatment (0.29 in Cd0 to 0.21 in Cd3 in grain and 0.18 in Cd0 to 0.13 in Cd3 in straw) and interactions (0.32 in Cd0 to 0.18 in Cd3 x S0 x S3 in grain and 0.20 in Cd0 x S3 to 0.11 in Cd3 x S0 in straw), over various S doses. Thus, Cd inhibited plant biochemical processes and metabolism and enhanced sink and consumption of reduced sulfur as indicated by lower S in grain and straw. Increasing S enhanced S (mg kg-1) in grain (0.21in S0 to 0.28 in S3) and straw (0.14 in S0 to 0.17 in S3) under varying Cd stress confirming mitigation in uptake, accumulation and toxicity of Cd as well as higher S translocation from aerial parts to grain. Cd recovered in biological harvest in Cd0 revealed that semi arid alluvium soils are already considerably cadmium polluted. Singnificantly higher productivity (g pot-1) was recorded in Cd0 and S2 for grain and straw i.e. 3.98 and 3.59 and 5.99 and 5.52, respectively. Among interactions, singnificantly higher productivity (g pot-1) was recorded in Cd0 x S2 for grain (4.34) and straw (6.51). Cd3 x S3 produced minimum grain (2.37 g pot-1) and straw (4.20 g pot-1) yield. Thus, S partially mitigated Cd stress upto 25 mg kg-1 of soil and also maintained higher oat yields.
Assessment of Irrigation Water Quality in Parambikulam-Aliyar River Basin of Tamil Nadu
Authors:   Department of Soil Science and Agricultural Chemistry, S.V. Agricultural College, Tirupati-517 502 (AP), R Kailaimannan , M V S Naidu ,   Department of Soil Science and Agricultural Chemistry, S.V. Agricultural College, Tirupati-517 502 (AP), K Venkaiah ,   Department of Soil Science and Agricultural Chemistry, S.V. Agricultural College, Tirupati-517 502 (AP)
Published: May 2023

Some important physico-chemical parameters of irrigation water of guava orchards in Prakasam district were evaluated for the criteria of the irrigation water quality. Thirty water samples were collected from three different mandals of the Prakasam district. The present study revealed that pH was neutral to moderately alkaline, Electrical Conductivity (EC) was high, Sodium Adsorption Ratio (SAR) was low to medium and Residual Sodium Carbonate (RSC) was good to marginal. So, initiative must be taken to reduce salt accumulation in the soil through drainage and adopting the highly salt tolerant crops like cotton, mustard and tamarind for the better utilization of the land.
Akan ethnomathematics: Demonstrating its pedagogical action on the teaching and learning of mensuration and geometry
Authors: Owusu-Darko Isaac , Sabtiwu Rufai , Doe Florence , Owusu-Mintah Belinda , Ofosu Ernest K.
Published: May 2023

The mathematics curriculum implementation depends largely on teachers’ choice of pedagogical skills that would influence meaningful teaching and learning. The suggestive ideal approach this paper presents is to consider exploration and demonstration of Akan (a tribe in Ghana, West Africa) ethnomathematics in the teaching and learning of some selected mensuration and geometrical concepts found in the secondary school curriculum. The study found various Akan ethnomathematical processes supporting the teaching and learning of school geometrical and mensuration topics such as artefacts, buildings, tools, and others. The ethnomathematical processes reveal a resemblance of pi (π ) concepts and its application to ethno-technology from selected artefacts used for pedagogical demonstrations. We recommend further research into the practical effect of ethnomathematics move in teaching other mathematical concepts in several communities where there exists cultural diversity. It is suggested that mathematics educators adopt ethnomathematics methodology by integrating it into the curriculum implementation process to check its impact on the teaching and learning of mathematics.
Pengembangan E-Modul Matematika Model Flipped Classroom pada Pembelajaran untuk Meningkatkan Kemampuan Komunikasi Matematis
Authors: Danuri Danuri , Choirunisa Aunora Sukma
Published: May 2023

Tujuan dari penelitian ini adalah untuk: 1) lebih memahami seberapa efektif bahan ajar E-Module Matematika; 2) lebih memahami seberapa efektif bahan ajar E-Module Matematika; 3) lebih memahami seberapa efektif bahan ajar E-Module Matematika; dan 4) lebih memahami dampak E-Modul Matematika terhadap prestasi belajar siswa. Studi ini merupakan contoh penelitian dan pengembangan (R&D) dengan menggunakan metodologi desain ADDIE (Analisis, Desain, Pengembangan, Implementasi, Evaluasi). Besar sampel untuk penelitian ini adalah 24 siswa. Temuan penelitian adalah sebagai berikut: 1) Prosedur berbasis ADDIE untuk mengembangkan e-modul MATEMATIKA; 2) e-modul MATEMATIKA bahan ajar yang layak digunakan di kelas, dinilai dari pendapat ahli materi pelajaran, ahli media, guru, dan siswa.
Perancangan Aplikasi Pelaporan Harian dengan Design Thinking dan User Experience Questionnaire (UEQ)
Authors: Kaban Triaji Morgana , Astiti Sarah , Prabowo Dedy Agung
Published: May 2023

PT.TASPEN (Persero) is a State-Owned Enterprise (BUMN) assigned by the Government to administer social insurance and pension funds with the aim of improving the welfare of civil servants or participants and their families, both while still active and after retirement. In daily reporting activities at the PT TASPEN KC Purwokerto company, input will be made to the system during the activity. If the Prototype Design results are satisfactory, PT TASPEN KC Purwokerto employees can develop to the next stage, namely making the application and no longer need to use Microsoft Excel to report every day and of course it makes it very easy for users to input their daily reports into the application. The combination of these two methodologies helps in creating designs on the PT. TASPEN KC PURWOKERTO application that are of high quality and according to user needs. Problems that exist in the office of PT. TASPEN KC Purwokerto still uses Microsoft excel, the lack of supporting applications for daily reporting in fulfilling existing activities at the office of PT. TASPEN KC Purwokerto. The main purpose of this design is to simplify the daily reporting process for PT TASPEN KC Purwokerto employees and ensure that the daily reports are accurate and timely. Design Thinking is used to understand and meet the needs of PT TASPEN KC Purwokerto employees. The User Experience Questionnaire (UEQ) method contains 26 types of questions, where each question has a scale of 1 to 7. In terms of attractiveness, the average score obtained is 1.99 and get excellent category. Clarity gets an average score of 1.82 and is categorized as good. Efficiency gets an average score of 1.80 in the good category, accuracy gets a score of 1.75 in the excellent category, while stimulation gets a score of 1.90 in the excellent category, and lastly, novelty gets an average score of 1.84 in the excellent category. From the results of this assessment, it can be concluded that the design of the application is positively assessed by employees, because it has a pleasant, good, safe, comfortable, attractive design, and is easy for users to use. Based on these results, a daily reporting application system for employees of PT TASPEN KC Purwokerto will be designed and then an evaluation of the application system for daily employee performance reports will be carried out
How Can Malaysian Public Universities Make The Most of Their Campus Real Estate? – A Conceptual Framework for Managing Corporate Real Estate
Authors:   Universiti Teknologi MARA, Bakhir Azmah , Nawawi Abdul Hadi ,   Universiti Teknologi MARA, Basrah Noraliza ,   Universiti Teknologi MARA
Published: May 2023

Most university campus buildings have low occupancy rates and high operating and maintenance costs because they are historically designed to fulfil the needs of specific faculties without any utility value. Real estate resources in universities tend to be undermanaged and misunderstood as overheadcosts by top-level management. The problems are prevailing within Malaysian public universities. Therefore, it is critical to take a more integrated corporate real estate management (CREM) approach, which is appropriate for public institutions with limited autonomy and strict regulatory oversight. This paper aims to determine key themes of CRE strategies and critical components of CREM alignment for successful implementation within an organisation. A comprehensive literature review was done on CREM at higher education institutions between 1990 and 2021. Then, a summary of several important publications was provided. The discussion of several approaches for coordinating CRE and organisational strategies followed. Because there is still adisconnect between the theoretical framework and the real-world implementations by educational administrators, the gap in Malaysia concerning CREM past research was then discovered. The article concludes by recommending a conceptual framework for CREM implementation in public universities in Malaysia that incorporates CRE strategies, alignment, and portfolio management. In order to enjoy a stream of revenues and support their core business operations, public universities can integrate CREM knowledge while managing their properties and resources. The conceptual framework promotes the overall effectiveness of investment in Malaysian higher education and offers helpful information for public institutions and government organisations involved in education.
Performance-based Generative Shape Grammar Method: Energy Efficient Facade Design for Fully Glazed Multi-Storied Office Building - Hot and Humid Climate, Chennai, India
Authors:   Dr. MGR Educational and Research Institute, C Chandrasekaran. , Sasidhar Kumudhavalli ,   Dr. MGR Educational and Research Institute, Madhumathi A. ,   School of architecture
Published: May 2023

The traditional building form design or form-making is an intuitive design method that is neither efficient nor competent for energy-efficient façade design. The form-making design approach threatens sustainable development in India. This paper discusses the new tread of form-finding, a process in which the framework is set for parameters to interact. It suggests a performance-based shape grammar (PBSG) generative design method for façade finding and evaluates it as an energy-efficient facade design method for FGM office buildings for India's hot and humid climate.A research method to develop PBSG rules for a given project framework was demonstrated by redesigning a case sample site and evaluating the existing FGM office building in the sample site. The PBSG methods in two stages apply multiple rules, first for form-finding and later for façade plane-finding for energy efficiency.It was observed that the SG resultant generated form was 42% more energy-efficient than the existing design using the same envelope materials, HVAC equipment, development regulations, and context.The outcome of this study provides a framework for a generative design process using PBSG in the early design stages and proves to be an energy-efficient design method for India's hot and humid climate.
Influence of Near Fault Earthquakes with Forward Directivity and Fling Step on Seismic Response of Steel Box-Girder Bridge
Authors:   Jamia Millia Islamia University, Baig Mirza Aamir , Ansari Md. Imteyaz ,   Jamia Millia Islamia University, Islam Nazrul ,   Jamia Millia Islamia University, Umair Mohammad ,   Jamia Millia Islamia University
Published: May 2023

The existing bridge seismic design guidelines that rely on the ground acceleration in the far fault zone,ignore the potential impact of near fault forward directivity and fling-step effects on the bridge structures. In the current study probabilistic seismic damage evaluation of a continuous four-span box girder bridge under the impact of near-fault forward directivity and fling step effect is studied employing the fragility analysis. The incremental dynamic analysis is used to construct the fragility curves which shows a range of damage states from minor to collapse for the different damage metrics and for the considered peak ground acceleration varying between 0.1g and 1.2g. Damage metrics such displacement pier ductility, rotational pier ductility and displacement of girder are used to develop the fragility curves and the probabilistic seismic damage model. To evaluate the bridge vulnerability, a probabilistic seismic damage assessment is performed using an ensemble of forward directivity and an ensemble of fling-step comprising permanent ground offset. The suggested probability-based earthquake damage framework is anticipated to be a well-versed model able to estimate the seismic damages to the continuous box girder bridges while taking into account the variation of near fault earthquakes. The findings show that, even at low PGA values the forward directivity and the fling-step ground motions represent a significant risk to the bridge.
Implementation of UAV for Pavement Functional Performance Assesment
Authors:   Politeknik Negeri Bandung, Astor Yackob , Utami Retno ,   Politeknik Negeri Bandung, Nabesima Yasuyuki ,   National Institute of Technology (NIT), Sihombing Atmy Vera Rouly ,   Politeknik Negeri Bandung
Published: May 2023

Pavement conditions could be degraded throughout its service life. Hence, a pavement management system is needed to ensure pavement performance according to its design life. To support a reliable pavement, a pavement condition survey needs to be conducted most effective and practical way. One of the technologies used in pavement condition surveys is the Unmanned Aerial Vehicle (UAV) or known as drone. The use of UAVs for road maintenance will reduce the cost and time and with the 3D model, the accuracy level is at the centimeter level which indicates UAVs are an excellent and promising tool for road work.In this study, a PCI method of pavement condition evaluationwill be used to asses pavement through both manually surveyed and 3D model calculation with the use of Agisoft application. Later on, statistical test will be carried out such as ANOVA and correlation to determine the relationship between pavement condition obtained from two different survey method as well as the comparison in identifying pavement distresss, PCI value and pavement condition. In result, those two methods can identify identical types of damage, with a fairly high percentage of > 60%. While, manual method could identify a higher percentage of degree of severity than 3D model with the help of application. Themanual of pavement condition assessment can identify in more detail than the Agisoft Metashape application. Based on statistical tests,the two methods used show a close and unidirectional relationship.
Curing Condition and NaOH Concentration on the Mechanical Properties of Fly Ash Based Geopolymer Mortars
Authors:   Sichuan Vocational and Technical College of Communications, Zhang Zheng , Huo Zhiqiang ,   Sichuan Vocational and Technical College of Communications, Yang Zhengxun ,   Sichuan Vocational and Technical College of Communications, Wang Xu ,   Sichuan Vocational and Technical College of Communications, Xia Jingang ,   Sichuan Vocational and Technical College of Communications
Published: May 2023

This paper describes the effect of different curing conditions on the mechanical properties of fly ash-based geopolymer mortars activated by different NaOH solution molarity. The influence of different curing initial curing temperatures (40°C,50°C,60°C), initial curing time (4h,8h,12h), and NaOH solution concentration (8mol, 10mol, 12mol) was studied by orthogonal design and the single-variable method.Results indicated thatthe fluidity of the geopolymer mortar sample followed the opposite trend with NaOH molarity increase. The most sensitive factor is NaOH molarity without considering curing age based on the data from orthogonal experiments. Furthermore, the study revealed a tendency to increase the flexural and compressive strength with rising NaOH concentration, initial curing temperature, and time, despite the mechanical strength development speed at different ages beingvarious,and the optimum NaOH molarity may be 10mol while NaOH pellets dosage and CO2emission were considered.
Burnt-Bricks Production Using Extracted Finer Particles from Soil with Fly Ash Addition
Authors:   University of Ruhun, Malkanthi S.N. , Perera A.A.D.A.J. ,   University of Moratuwa, Galabada Harsha ,   Horizon Campus, Dharmarathna P.D. ,   University of Moratuwa
Published: May 2023

Earthen building materials, including mud, adobe, rammed earth, and bricks, have a long history of use in civil engineering construction all throughout the world. Burnt bricks are one of these materials thatis important. However, the availabilityof raw materials for making bricks is limited. As a result, numerous alternatives have been investigated as raw materials for making bricks. These substitutes include fly ash, rice husk and ash, industrial, and agricultural waste. The current study suggests a novel method for producing burnt bricks using extracted finer and fly ash.Finer particle extraction was done through soil washing. Since the extracted finer is having high plasticity index and high linear shrinkage, extracted finer was mixed with 20%, 25%, 30%, 40% and 50% fly ash. Fly ash is an industrial waste; hence the use of fly ash for this kind of production would give a sustainable solution for waste management. Every finer-fly ash combination underwent an Atterburg test to evaluate its qualities, particularly its plasticity index and linear shrinkage. Standard-type mold (220 x 115 x 75 mm) was used to producethe handmade bricks. Compressive strength, flexural strength, water absorption, density, and dimension variations of burned bricks were all examined. Results were compared with SLS 39: Specification for burnt clay bricks. Further, these properties were compared with the same properties of bricks made with soil taken from the brick-making industry mixed with fly ash and industrial available burnt-bricks.Additionally, wire-cut bricks were produced using extractedfiner and 25% fly ash. The dimensional variationof finer-fly ash mixed burnt bricks is decreasing when the fly ash % is increased relative to the mold size. Compressive strength of the Grade 2 category was demonstrated using bricks manufactured with a 25% fly addition, according to SLS 39. According to the aforementioned findings, burnt bricks composed of extractedfiner and fly ash have higher desirable qualities when 25% more fly ash is added. Additionally, it shows that using fly ash results in lightweight bricks.The wire-cut bricks made with this selected mixture give 10.64 N/mm2 of compressive strength and it satisfies the SLS 39 requirements for wire-cut bricks. Also, its water absorption was nearly 16% which is below the SLS required value (18%).
Strengthening of Timber Beam with Cold-Formed Steel Plates
Authors:   Bogor Agricultural University, Yoresta Fengky Satria , Nugroho Naresworo ,   Bogor Agricultural University
Published: May 2023

This paper describes an experimental program which examined the flexural strengthening of timber beams (50x50x1000 mm) using cold-formed steel (CFS) plates (0.75 mm thick and 30 mm wide). A total of fifteen specimens were tested in three-point bending scheme with a span-depth ratio of 18:1. The effectiveness of the steel plates was evaluated for different strengthening lengths and number of strengthening layers. Test results showed that maximum load carrying capacity and stiffness of the strengthened beams can be improved by up to around 70% and 40%, respectively, relative to that of control unstrengthened beams. The increase in the percentage gain occurred as increasing strengthening length as well as number of the strengthening layers. Control unstrengthened beams demonstrated linear elastic behavior during the test whereas the strengthened beams tended to undergo a pseudo-ductile behavior. Along with it tensile failure in timber was still observed in the strengthened beams.
Comparative Evaluation of the Engineering Properties of Asphaltic Concrete from Selected Asphalt Plants in Southwestern Nigeria for Road Construction
Authors:   Yaba College of Technology, Olopade Samson Olukayode , Adeboje Adeyemi Oluwaseun ,   University of Lagos, Olutaiwo Adewale Olukayode ,   University of Lagos, Obisanya Adekunle Adedapo ,   Yaba College of Technology
Published: May 2023

In this study, the engineering properties of asphaltic concrete from selected asphalt plants in Southwestern Nigeria for road construction were sampled for three months, analysed and compared with regulatory body specifications. The penetration test, Ductility test, Marshall Stability and flow tests results indicated good conformity to the regulatory specificationby all the plants with JBN exhibiting highest range value while LSPWC has the least. Also, asphalt samples from all the plants passed the Ring ball and softening point test with Julius Berger Nigeria having highest value between 53.5-53.7 while SEQUOIA has the least with 50-50.2 when compared to standard value 47-56. For bitumen content tests with 5-8% Specification, ESPRO failed with 3.9-4.8, LSPWC show inconsistence result of 3.9-5.6, SEQUOIA had the highest between 6.4-7.0, while CCECC and JBN conform to specification. The density-void ratio and particle size specification were met by only JBN with major deviation recorded from LSPWC. The result indicated JBN is the only company that satisfy all the engineering properties specification while others exhibit inconsistency in aggregates proportion thereby making the asphalt concrete a possible cause for pavement failure in Southwest Nigeria.
Influencing Factors to Use E-Hailing Transport for Food Delivery Service
Authors:   Smart Driving Research Center,Faculty of Civil Engineering and Built Environment,Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, 86400, Batu Pahat, Johor, MALAYSIA, Wan Mohamad Yusoff Wan Azfizatul AzZarah , Mohd Razip Nuraisha Arissa ,   Smart Driving Research Center,Faculty of Civil Engineering and Built Environment,Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, 86400, Batu Pahat, Johor, MALAYSIA, Ambak Kamarudin ,   Smart Driving Research Center,Faculty of Civil Engineering and Built Environment,Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, 86400, Batu Pahat, Johor, MALAYSIA, Ab Ghani Ahmad Raqib ,   Smart Driving Research Center,Faculty of Civil Engineering and Built Environment,Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, 86400, Batu Pahat, Johor, MALAYSIA, Putranto Leksmono Suryo ,   Department of Civil Engineering,University of Tarumanagara, Jakarta, INDONESIA
Published: May 2023

E-Hailing servicesare considered as on-demand vehicles that affect the efficiency of food delivery. This system improves the process of collecting and sending orders from customers in a short period of time. This study aims to determine the level of consumer acceptance or satisfaction with food delivery services using the e-Hailing system. The objective of this study is to identify the factors that influence the community to use e-Hailing food delivery services and to determine the most dominant factor in e-Hailing servicesaccording to Technology Acceptance Model (TAM). The location of the study is in the urban area and also semi-urban in the districts of Johor. A self-administrated online questionnaire was distributed among 258 respondents in the study area. Part of the questionnaire was constructed based on the TAM. Correlation and regression analysis were used in the analysis of this study. The results of this study show that the relationship between variables TAM (β = 0.443), perceived ease of use, and perceived usefulness are strongly correlated based on significant values (p < 0.001) showed the independent variable (Intention to Use) influenced the acceptance of user behaviour towards e-Hailing. Among the suggestions to increase consumers of food delivery services amonge-Hailing users is to reduce delivery charges for nearby areas so that consumers can buy food at various stores. This can help other vendors and riders in this e-Hailing food delivery service.
Good Faith in Construction Contract: A Common Law Perspective
Authors:   Centre of Regulatory Studies (UMCoRS),Faculty of Law, University of Malaya, Kuala Lumpur, 50603, MALAYSIA, Abdullah Nurhidayah , Tze Chin Ong ,   Centre of Regulatory Studies (UMCoRS),Faculty of Law, University of Malaya, Kuala Lumpur, 50603, MALAYSIA, Nasir Nur Atiqah ,   Centre of Regulatory Studies (UMCoRS),Faculty of Law, University of Malaya, Kuala Lumpur, 50603, MALAYSIA, Kurniawan Faizal ,   Faculty of Law, Universitas Airlangga, INDONESIA
Published: May 2023

The good faith principle requires contracting parties to be honest as well as consideringtheir contracting partners in performing their contractual duties. In the event, contract clauses are insufficient to protect the interests of the innocent party in a breached contract, the said innocent party may rely on the good faith principle to ensure the fair. However, applying good faith principles to construction contracts is a difficult task. By nature, construction contracts are unique due to the fact that parties (Client and Contractor) are presumed competent to carry out their parts of the contractual obligations. Controversially, the construction contract is often unfairly prejudicial as the Client would customarily have the upper hand in deciding the terms and conditions of a contract. It is the objective of the research to examine the relevancy of application of good faith principle in construction contractsby employingqualitative content analysis. This study adopts a qualitative research approach, mainly employing library and internet resources with the intention to explore relevant legislation, textbooks, journals, research papers and articles.The comparative approach in this paper used content analysis from primary and secondary legal resources of different jurisdictions in the United Kingdom, Malaysia and Australia to compare the application of the good faith principle in the context of construction contracts. The findings of the research revealsthat the adoption and application of the good faith principle in construction contracts is of limited usage even though it is widely usedin general contract law of United Kingdom, Malaysia and Australia.This article contributes to the knowledge of the good faith principle in construction contracts, particularly with standard form contracts, by highlighting the importance of the good faith principle in achieving a fairer functioning of construction contracts in its application.
Relationship Model of Competitiveness and Productivity of Engineering Procurement and Construction for Indonesia Construction Industry
Authors:   Industrial EngineeringDepartment, Faculty of Engineering,University of Pamulang, 15417, Banten, INDONESIA, Mairizal Mairizal , Taufik Agus ,   Industrial EngineeringDepartment, Faculty of Engineering,University of Pamulang, 15417, Banten, INDONESIA
Published: May 2023

The need for EPC Contract Work Services is increasing along with economic development and infrastructure needs in Indonesia. For the success of EPC, the productivity of EPC companies and their competitiveness are very much needed. This study aims to determine the factors of competitiveness that affect the productivity of companies and their people. In addition, this study also intends to find out the factors that affect the productivity of internal parts and investigate the model of the relationship between competitiveness and productivity. Collecting data is quantitative by distributing questionnaires to several 20 respondents.Data analysis was carried out in 4 (four) stages, namely data collection, data reduction, data presentation, and drawing conclusions. The data analysis process was carried out using SPSS and Smart PLS software. The results of this study are believed to be able to add to the knowledge base, especially in the field of employee productivity development for EPC companies in Indonesia. The findings obtained from this study state that factor analysis shows the factor of Competitiveness(Independent Variable) is influenced by Appreciation of Criticism (X11), Oral Communication (X8), Performance Theory (X3), Personality Theory (X2), Problem Analysis Skills (X6) , Integrity (X15), Team Collaboration Skills (X10), Engagement (X13), Customer Orientation (X14), Observation Skills (X7), Openness to Criticism (X12) and Writing Skills (X9). While Productivity (Y) is stronglyinfluenced by Labor (Y1) and Materials (Y2)
Cloud Computing Adoption Factors Affecting Academic Performance in UAE Public Universities
Authors:   Faculty of Technology Management and Business, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Batu Pahat, Johor,MALAYSIA, Alzaabi Nouf Mohamed Ibraheem , Wahab Eta ,   Faculty of Technology Management and Business, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Batu Pahat, Johor,MALAYSIA
Published: May 2023

Cloud computing helps in reducing costs and providing accessibility, reliability, and flexibility especially in educational sector. This able to provide the best educational resources and facilities to all level of students effectively and efficiently. It also seen as a creative technological innovation that provides stableand on-demand access to the available network. Hence, this study aimed to measure the cloud computing adoption factors affecting the academic performance in UAE university. The factors are clustered into five groups namely, knowledge sharing; knowledge application; learnability; perceived self-efficacy; and perceived enjoyment. A questionnaire survey was conducted with the university students to gauge their opinions on the level of significant of each factor affecting the academic performance using 5-points Likert scale. Out of 400 questionnaire sets distributed using random sampling, 382 valid responses were extracted as the collected data. This data was analysed descriptively. The results of the analysis found that that cloud computing adoption factors inperceived self-efficacy group are ranked first in term of its significance in affecting academic performance. The second rank is factors in learnability group; the third is perceived enjoyment; the fourth rank is knowledge application and finally, the fifth rank is knowledge sharing. The impact of this research will be felt simultaneously in the IT and education sectors, particularly through assisting students in utilising cloud computing to store and exchange information for both their academic and personal lives.