Tadulako University Research Articles

Identification of land fertility and farmer income after an earthquake natural disaster

Liquefaction is a phenomenon where saturated sand and silt take on the characteristics of a liquid during the intense shaking of an earthquake. It takes place when a quake has increased water pressure in saturated soil and made particles in the soil lose contact with each other, making the soil, particularly sandy soil, act like a liquid. On September 28, 2018, an earthquake was occurred which caused liquefaction and a tsunami in Central Sulawesi, Indonesia. This incident triggered a new phenomenon, namely liquefaction in several residential areas in Palu City, especially in the Balaroa and Petobo areas. The liquefaction phenomenon in Petobo Village caused changes in the shape of the land surface. The changes that occurred had an impact on decreasing soil fertility levels in the area along with low crop production and decreased farmer incomes. Soil fertility is a quality value of the soil's ability to provide nutrients for growth. This research aims to determine the level of fertility of agricultural land and the amount of farmer income as well as the best efforts to overcome changes in agricultural land after natural disasters. This research used a descriptive method with a population of all farmers living in the Petobo area affected by the earthquake and liquefaction. There were 25 informants who were determined using a purposive sampling technique. Soil samples were analyzed at the Soil Science laboratory, Faculty of Agriculture, Tadulako University, Palu. The method used in this study is a direct survey method in the field, then continued soil sampling at several points according to the coordinate points carried out by purposive sampling techniques. The status of soil chemical properties at 4 sample points affected by liquefaction and 2 sample point not affected by liquefaction in Petobo Village, which classified as very low to very high. Areas affected by liquefaction had neutral to slightly alkaline soil pH content, very low to low C-organic content, very low N-total content, very high P-total content, low K-total content, and have medium to high CEC content. Meanwhile, areas that are not affected by liquefaction had neutral soil pH content, very low to low C-organic content, very low N-total content, very high P-total content, low K-total content, and have medium to high CEC. The low level of soil fertility in this area means that crop production is also low. Changes in the amount of income experienced by affected farmers who initially had around 77.26 USD- 186.71 USD/month declined to 61.16 USD-77.26/month. This is due to changes in the polarization of farmers' work. Actions that can be implemented to increase soil fertility are correct soil management, use of organic fertilizers such as compost, manure, harvest residues such as (legume plant stover, rice straw) and the addition of chemical fertilizers according to the dosage.

Analysis of Student Organizations in Developing the Personal Potential of Students at The Faculty of Economics and Business, Tadulako University

Analysis of Student Organizations in Developing the Personal Potential of Students at The Faculty of Economics and Business, Tadulako University

Swallow Droppings for The Chemical Properties of Alluvial Soil As Growing Medium For Ebony (Diospyros Celebica)

This study aimed to determine the effects of swallow bird droppings bokashi on several soil chemical properties such as pH, C-Organic, N, P, K, CEC, and to determine the appropriate dosage of bokashi fertilizer for the growth of ebony seedlings. This research was conducted at Permanent Nursery located at Tadulako University. This study was conducted using a completely randomized design with 5 treatments and 4 replications, 20 experimental units as: P0 (control), P1 (7 tons/ha), P2 (14 tons/ha), P3 (21 tons/ha), and P4 (28 tons/ha). The results showed that the swallow droppings bokashi fertilizer was able to improve: soil pH 7.18 to 7.55 with a neutral status, P from 41.34 to 65.06 with very high status, K from 46.26 to 53.87 with high status, C-Organic from 5.30 to 10.25 with high to very high status, and N-Total from 0.12 to 0.34 although in low status in the soil. The application of swallow droppings bokashi into the soil was very much needed. C-Organic content in swallow droppings bokashi was 50.23%, N (4.26). The application of swallow droppings bokashi with a treatment of 21 tons/ha (61.25 g/pot) was the best dose for the growth (height) and the increase number of leaves of ebony seedlings.

Analysis Of Student Organizations In Developing The Personal Potential Of Students At The Faculty Of Economics And Business, Tadulako University

Analysis Of Student Organizations In Developing The Personal Potential Of Students At The Faculty Of Economics And Business, Tadulako University

The Influence of Emotional Intelligence, Spiritual Intelligence on the Level of Understanding of Social and Environmental Accounting

Abstract This research aims to test and analyze the Direction of Emotional Intelligence, Spiritual Intelligence on the Level of Understanding of Social and Environmental Accounting. Study of 2018-2021 Class of Accounting Students, Faculty of Economics and Business, Tadulako University. This research uses a survey method, using the Slovin method sampling technique. The respondents in this research were students at Tadulako University, Faculty of Economics, majoring in Accounting, totaling 111 respondents. The research method used in this research is quantitative research using multiple linear regression data analysis, data collection techniques using questionnaires. The results of this research show that emotional intelligence and spiritual intelligence simultaneously have a significant effect on the level of understanding of social and environmental accounting. Emotional intelligence partially has a significant effect on the level of understanding of social and environmental accounting, spiritual intelligence partially has a significant effect on the level of understanding of social and environmental accounting

The Concept of Corporate Social Responsibility in Higher Education Institutions in Perspective Ketadulakoan

This research aims to reconstruct the concept of Corporate Social Responsibility (CSR) in Higher Education Institutions (or University Social Responsibility) from a religious perspective. The Critical Paradigm is used as a paradigm for developing this research. Interviews, observation and documentation carried out data collection. Informants were selected based on the credibility of the researcher. Data analysis was carried out by reconstructing the concept of CSR in higher education institutions (USRs) based on religious values. The findings of this research are the philosophy of Tadulakoan to dismantle the values ??of secularism, materialism and individualism in the implementation of USR in Tadulako. The research results found accountability in the form of reporting related to 1) Level of courage (Natona Nalanggai) in fighting for justice to achieve peace, 2) Ability to achieve success through collaboration of various intelligences, 3) Fighting power in achieving success. 4) Excellence (Nabaraka) in creating innovations to ease human life. 5) Accuracy and caution (Nompangila) in decision-making. 6) Obedience and loyalty (Natuvu No Sangata) to leaders who fulfill their mandate. 7) Level of democracy in joint decision-making activities, 8) Awareness in protecting community interests and the environment. This research can be one of the research that supports and is in line with the Strategic Plan and research road map achieved by Tadulako University (UNTAD).

Breaking Dormancy of Salak Seeds Using Various Concentration and Soaking Time of Gibberellins GA3

Dormancy is one of the obstacles in cultivating zalacca plants which have hard skin and seeds making them difficult to grow. Soaking using growth hormones is an alternative for growing seeds well. This research aims to determine the concentration of Gibberellin and determine the appropriate length of soaking time for Gibberellin (GA3) in germinating zalacca seeds. The research was carried out at the Seed Science and Technology Laboratory, Faculty of Agriculture, Tadulako University, Palu in January - February 2023 using a Completely Randomized Design with a factorial pattern. The first factor is the Gibberellin’s concentration which consists of 40, 60, and 80 ppm. The second factor was the length of Gibberellin’s soaking time which consists of 15, 55, and 95 minutes so that 9 treatment combinations were obtained which were repeated three times to obtain 27 experimental units. Each experiment used 20 seeds, therefore 540 zalacca seeds were needed, with 5 samples per experimental unit. The results show that gibberellin concentrations of 60 ppm and 80 ppm and soaking times of 55 and 95 minutes were treatments that provided good growth in germination capacity, germination time, plumule length, radicle length and dry weight of zalacca seed sprouts

Analysis Of Calculation Of Illumination Needs At Tadulako University Hospital

Introduction: Lighting in the room varies, this is adjusted to the activities carried out in the room. Each room has its own lighting standards. The provision of electric power must meet sufficient capacity to serve the load. The construction of the Tadulako University College Hospital project cannot be separated from the need for electricity. In this building, electric power is used to meet lighting, air conditioning and medical needs. Method: This study uses a comparative analysis method to determine the suitability between the lighting calculation results and established standards, as well as a quantitative method in calculating lighting factors. Results and Disscussion: This study shows that the use of Downlight and LED Panel lamps at Tadulako University Hospital has met the standards of PERMENKES NO. 24 of 2016. Downlights are used in public spaces and corridors because they provide more focused and bright lighting, while LED Panels are used in special rooms for the comfort of patients and medical personnel. The trial showed that all rooms comply with the established lighting standards. Conclusion: This study concluded that the lighting system in Tadulako University Hospital using Downlight and LED Panel lamps has met the standards set by PERMENKES NO. 24 of 2016. LED Panel lamps are used in certain rooms to provide comfort for patients and medical personnel, while Downlight lamps are used in public rooms and corridors because the lighting is more focused and bright.

An Analysis of Speaking Anxiety of The Second Semester of English Foreign Language (EFL) Student of Tadulako University

An Analysis of Speaking Anxiety of The Second Semester of English Foreign Language (EFL) Student of Tadulako University

A Syntactic Analysis of Constituent Structure in Sentences Written by EFL Students

This research aims to determine which student uses the most dominant conjunction, what students use the most difficult conjunction and why they have difficulty using correlative and coordinating conjunctions in their sentences. The population of this research was the 4th-semester students of the English education study program at Tadulako University. The sample was selected using a simple random sampling technique, and there were 151 4th-semester students. The researcher used a quantitative description. The data of this research used a test and questionnaire. The results of the data analysis show that (1) the most dominant conjunction used by the students was coordinating conjunction, especially conjunction “and” (2) the most difficult conjunction utilized by the students was correlative conjunction, namely conjunction “both…and”, the frequency of conjunction “both…and”, (3) there are two factors influencing the students in using coordinating and correlative conjunctions which are internal factor and external factor. The internal factors are: the students rarely improve their knowledge about conjunctions; The students are not interested in the material about conjunctions; The students do not understand the function of conjunctions; The students do not understand about lexical categories. The external factors are: There is no motivation from lecturers or teachers for students to learn the conjunctions; The lecturers or the teachers do not explain clearly the material of conjunctions.

Physical and vegetation characteristics of soil cover on a liquefied land

Liquefaction is a phenomenon where a solid soil becomes liquid due to an earthquake or other vibrations and other sources of intense shaking, leading to a loss of soil strength and stiffness. Liquefaction can damage structures and condition of the land surface and may affect the state of the vegetation that grows on the land. Therefore, it is necessary to study the physical properties of the soil and the condition of vegetation after the liquefaction event. This study examines changes in the physical conditions of alluvial soil and vegetation cover on the land surface after the liquefaction disaster and future management strategies. This research was carried out from August to December 2022 by taking composite and representative soil samples from three land conditions, namely liquefied land consisting of eroded and piled up soil, as well as a control sample from ground that was not liquefied. Soil sample analysis was conducted at the Laboratory of Soil Science, Faculty of Agriculture, Tadulako University. The research used several observational variables: soil texture, permeability, bulk density, porosity, and organic matter. Observation of land surface cover and vegetation types was done using the quadrant method. The results indicated that, overall, areas affected by liquefaction experienced a substantial loss of soil mass, leading to a lower land surface, particularly in regions prone to erosion. Due to the erosion of surface soil, the remaining subsoil had a sandy loam texture, higher bulk density, increased permeability, and reduced organic matter content. As a result, the ground surface became undulating, with mounds of soil and irregular surface drainage in certain areas. For areas that experienced liquefaction up to four years after the disaster, the level of land cover only reached 60-61%. In contrast, the level of land cover by surface vegetation reached 93.7%.

A METHOD OF APPLICATION CASE METHOD AND TEAM BASED PROJECT IN IMPROVING THE QUALITY OF RESEARCH COURSE LEARNING LANGUAGE AND LITERATURE PROGRAM IN EDUCATION STUDIES INDONESIAN LANGUAGE AND LITERATURE

This research was carried out at the Indonesian Language and Literature Education Study Program, Faculty of Teacher Training and Education Tadulako University, odd semester 2021/2022. The purpose of this study was (1) to determine the application of the Case Method and Team Based Project (CM-TBPj) methods in learning Indonesian Language and Literature Research courses for Indonesian Language and Literature Education Study Program students. (2) to determine the quality of learning outcomes of Indonesian Language and Literature Research courses for Indonesian Language and Literature Education Study Program students through the application of Case Method and Team Based Project (CM-TBPj). This type of research is classroom action research. The flow of this research activity consists of two lines, the first is a case method and a team based project, which is preceded by developing a case framework that will be used in the study of Language and Literature Research courses, then followed by collecting an evaluation test of the quality of learning after the case scenario has been carried out. Data was collected using test and non-test techniques. The research data is in the form of the CM-TBPj learning planning design and its implementation is observed and assessed by peers using the CM-TBPj learning planning and implementation instrument in Indonesian Language and Literature Research learning. The results showed that the planning of CM-TBPj was very well designed with a score of 3.5 and the implementation of CM-TBPj in Indonesian Language and Literature Research learning was carried out very well with a score of 4.0. The results also show that CM-TBPj-based Indonesian Language and Literature Research Learning activities can create an authentic, collaborative, and participatory learning atmosphere in solving real problems/cases in Indonesian Language and Literature Research to achieve course learning objectives (CPMK) with a value of the average student learning outcomes Study Group 1 = 85 (A), Study Group 2 = 88 (A), Study Group 3 = 87 (A), Study Group 4 = 88 (A), and Study Group V = 90 (A ).

The Preface: IICESSD 2023

On behalf of the conference committee, I would like to extend my warmest welcome to all of the attendees to our 3rd International Interdisciplinary Conference on Environmental Sciences and Sustainable Development (IICESSD 2023) which was held on 25-26 September 2023 at Best Western Plus Coco Hotel, Palu, Indonesia in a hybrid format. The conference theme is “Towards networking for the environment and sustainable development issues in the digital era“. The objective of the conference is to share knowledge and research network between institutions nationally and internationally. The participants attend from Australia and Asia as the representatives of the lecturers, students, and researchers. The keynote speakers were Prof. Dr. Ir. Amar, M.T (Rector of Tadulako University), Prof. Tim Robert (Newcastle University), Prof Sukree Langputeh (Fatoni University Thailand), Prof. Roseline A Saufi (University Malaysia Kelantan), Dr. Albertus Denny Handoko (STAR A Singapore), and Dr John Holdsworth (Newcastle University) who sharing their valuable insight of promoting networking on environmental and sustainable development concerns. Our technical program was rich and varied with 6 keynote speakers and around 70 technical papers split between 4 parallel oral sessions each day: (1) Agriculture and forestry for the environment and sustainable development; (2) Health for the environment and sustainable development; (3) Engineering science for environment and sustainable development; and (4) Green economy, entrepreneurship and good governance for sustainable development. The conference of IICESSD 2023 was organized and sponsored by the Postgraduate Universitas Tadulako, Palu Indonesia as well as the local organizing committee members who have all worked extremely hard on the details of important aspects of the conference programs and social activities. Special thanks go to the IOP Publishing EES that agreed with the works of this proceeding conference in an open-access volume of IOP Conference Series: Earth and Environmental Science. Prof. Daud K. Walanda, IICESSD 2023 Chair List of Organizing and Scientific Committee, Secretariat committee, Accomodation/venue committee, Publication committee, Programme committee, Technical committee, List of Editors, List of Reviewers are available in this Pdf.

Pengembangan Media Pembelajaran Barang Bekas Komponen Elektronika Berbantuan Simulator Livewire untuk Meningkatkan Kreativitas Mahasiswa pada Materi Elektronika Dasar

The purpose of this research is to develop learning media for passive electronic components assisted by Livewire simulator to increase student creativity in basic electronics material. This research was conducted in the Physics Education Study Program, Faculty of Teacher Training and Education, Tadulako University. Development research time for 8 months. The subjects of this research are physics education students who program basic electronics courses. The measured change is the validation value of learning media development from expert respondents and students. To increase student creativity is measured through a creativity questionnaire. This research is a type of research and development or known as Research and Development (R&D). This research uses several stages of research: (1) Potential and problems; (2) Data collection; (3) Product design; (4) Design validation; (5) Design revision; (6) Product trial; (7) Product revision; (8) Usage trial; (9) Product revision; and (10) Mass production. From the results of the study, the N-gain value of the pretest and posttest data was 0.47 or N-gain in the medium category. Therefore, it can be concluded that the development of used electronic component media can increase student creativity on the subject of basic electronics

The Development of Lettuce (Lactuca Sativa) Vegetables Using a Hydroponic System in Narrow Home Gardens in Tanamodindi Sub-District, Palu City, Central Sulawesi

This community engagement activity was conducted on Merpati Street, Tanamodindi Sub-District, Palu City, Central Sulawesi Province, in collaboration with Internship Students (MBKM) from Tadulako University. The village faces issues regarding the utilization of narrow home gardens. The objectives of this community engagement are: 1) to enhance the knowledge of the surrounding community regarding the utilization of narrow home gardens to create added value for household income; 2) to promote vegetables as a nutritious source for consumption; 3) to increase the knowledge of both the community and students about effective hydroponic farming methods suitable for narrow home gardens. The method used in this activity was a participatory approach, where the team, MBKM students, and the surrounding community actively engaged in cooperative efforts. The primary targets of this training were students and community members involved in hydroponic vegetable cultivation in narrow home gardens on Merpati Street, Tanamodindi Sub-District, Palu City Central Sulawesi Province. The results of this community engagement activity include increased knowledge regarding using narrow home gardens for additional income generation and promoting nutritious vegetables for human consumption Education.

RANCANG BANGUN TRAINER ROBOT LENGAN UNTUK PRAKTIKUM ROBOTIKA PADA PRODI S1 TEKNIK ELEKTRO FAKULTAS TEKNIK UNIVERSITAS TADULAKO

Robotic arms are a type of robot that is currently developing rapidly in industry, this has caused robotics technology to become one of the mandatory subjects taught in universities. In the Undergraduate Department of Electrical Engineering, Faculty of Engineering, Tadulako University, the robotics course is a mandatory subject studied by students, especially students who take the weak current concentration (TEN). This research aims to provide students with an understanding of how to control a robot arm. The design of a robot arm system with 4 degrees of freedom is made using several types of control such as control using Arduino IDE software, push buttons and potentiometers. The results of testing the robot arm trainer after controlling it with three types of control were successful. In the first control using the Arduino IDE software control it shows that the direction of rotation of the motor rotates according to the program target given, in the second control using a push button it shows that the speed and acceleration are directly proportional to changes in motor degrees, then in the third control using a potentiometer it shows that the degree mapping on the potentiometer is directly proportional to the degree of the stepper motor. However, in the test there were differences in degree values ​​when the motor rotated which caused the resulting data to be inaccurate. This is due to a mismatch in tooth size between the belt and the stepper motor gear, causing wear on the belt.

Pelatihan Pemanfaatan Artificial Intelligence dan Canva bagi Dosen Fakultas Kesehatan Masyarakat Universitas Tadulako

AI training is very important for teaching staff in higher education to equip themselves with the knowledge and skills to utilize AI to improve the quality of learning, provide accurate feedback, and promote effective student engagement. This training aimed to improve the knowledge and skills of public health lecturers at Tadulako University in the utilization of artificial intelligence (AI) and Canva. The training was conducted using lectures, practices, and discussions. The training participants were 16 lecturers at the Faculty of Public Health, Tadulako University. The training materials covered AI Bard, Gamma APP AI, CANVA, Chat GPT, and Jenni AI. After the training, all participants were able to create accounts on each of the applications and were able to practice them. Participants were also able to apply AI and Canva for teaching, research, and other needs. The training was able to improve the knowledge and skills of public health lecturers at Tadulako University in the utilization of AI and Canva. AI and Canva can be useful tools to support teaching, research, and other activities. Using AI wisely can improve the accuracy and usefulness of the information provided by AI in educational media. This can help both teachers and students learn more effectively and efficiently.

The Effect of Fermented Rice Bran of The Silage of Cow’s Rumen with Different Storage Time on The Physical Quality, pH and Nutrient Content of Silage

This study, conducted from March to May 2023, aimed to assess the impact of fermented rice bran from cow rumen contents on silage quality, pH, and nutrient content with varying storage times. The experiment took place in Porame Village, Central Sulawesi Province, and Tadulako University's Feed Nutrition Laboratory. The study used molasses, rice bran, EM4, water, and cow rumen waste as materials. Employing a complete randomized design with a 2x3 factorial pattern, the study had 6 treatment combinations and 24 experimental units. Factors included fermented and unfermented rice bran ratios mixed with cow rumen content, and storage times (21, 25, and 30 days). Results from SPSS analysis indicated no significant interaction between fermented rice bran and storage time regarding physical quality and nutrient content. However, the pH of silage was significantly affected. Fermented rice bran (A2) led to a notable pH reduction compared to non-fermented rice bran (A1). In summary, this study concluded that while there's no substantial interaction effect on physical quality and nutrient content, pH measurements are impacted by the use of fermented rice bran.

Ground Infiltration in Various Land Uses in Kawatuna Sub- Watershed

The research was conducted in the Kawatuna Sub-watershed with the aim of studying the physical properties of the soil and knowing the infiltration rate of several land uses in the Kawatuna Sub-watershed. This study used the Horton equation formula and took soil samples for analysis at the Laboratory of Soil Science, Faculty of Agriculture, Tadulako University, Palu. The results showed that the physical properties of the soil greatly influenced the infiltration process, the highest organic matter was secondary soil 6.10%, dry land agriculture 4.50% and the lowest was shrubs 3.04%. Secondary forest soil textures are loam and dusty loam, dry land agriculture has sandy loam textures, and shrubs have loamy, sandy loam and dusty loam textures. In terms of physical properties of water content, dry land agriculture had the highest water content 21.48%, secondary forest 19.19% and shrubs the lowest 15.54%. The highest infiltration rate was secondary forest land (12.74 cm/hour) with fast criteria, dry land agriculture (7.80 cm/hour) medium fast category and shrub land (6.19 cm/hour) medium category.

A strategy to enhance the quality of public administration services at better Tadulako University

The study aims to explore strategies to enhance public administration capacity at Tadulako University, using a qualitative approach through case studies. This research mainly focuses on understanding how the applied strategies can improve administrative processes and provide better services to students and staff. Researchers collect data by conducting in-depth interviews, live observations, and document analysis with administrative staff, students, and faculty. Researchers conduct thematic analysis to identify key themes and comprehend the effectiveness and impact of implemented strategies. Research results show that integrating information technology, staff training, and revising bureaucratic processes are critical factors in improving the efficiency and quality of administrative services. Data triangulation reinforces these findings, ensuring the validity and reliability of the results. The research provides insights into best organizational practices and offers valuable recommendations for other higher education institutions facing similar challenges. These implications extend beyond operational improvements to enhancing student education experiences, illustrating the connection between effective administration and academic success in higher education institutions.