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INDONESIA
Buletin Poltanesa
ISSN : 14120097     EISSN : 26148374     DOI : 10.51967/tanesa.v21i2.326
Buletin Poltanesa is a collection of research articles, scientific works, and dedication from all academic community in order to integrate information. Buletin Poltanesa provides open publication services for all members of the public, both in all tertiary educational and teacher environments and other research institutions, with the freedom to exchange information that is dedicated to facilitating collaboration between researchers, writers and readers through information exchange. Buletin Poltanesa was introduced and developed in Research Department of Politeknik Pertanian Negeri Samarinda Buletin Poltanesa is published periodically twice a year, in June and December, this bulletin contains the results of research activities, discoveries and ideas in the field all multidisciplinary sciences. Hopefully with the articles in cultivation researchers can share knowledge in order to advance Indonesia, especially East and North Borneo.
Arjuna Subject : Umum - Umum
Articles 555 Documents
An Analysis of English Article Errors and Pedagogical Implications in Students’ Writing Skill Puspita; Suswanto
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.1972

Abstract

The study aimed at analyzing a comprehensive account of the dominant type of article errors, finding out the causes of errors, and determining appropriate pedagogical approaches to reduce the errors in students’ descriptive writing tasks. The analysis was based on the Surface Structure Taxonomies of errors comprising omission, addition, and substitution. The data were collected from written samples encountered by 40 first-semester students of Plantation Management, Samarinda State Polytechnic of Agriculture. One of five different topics should be chosen and written by the student in approximately forty-five minutes. The study’s results revealed three types of English article errors that emerged in students’ writing involving omission as the dominant English article error type, addition, and substitution as the second and the third one. The cause of errors emerging in the students’ writing was the first language interference (Indonesian) that strongly influences the process of foreign language (English) acquisition of the articles due to the differences in rules between Indonesian and English structures. Pedagogical implications included a contrastive comparison between languages that may improve learners' ability to instantly recognize differences in article usage between their language systems, conducting simple writing tasks as routine exercises for students, error correction in a flexible way, providing English reading materials and encouraging learners to read the materials extensively.
PTEN: The Potential Therapeutic Target of Diabetes Mellitus Ni Made Wiasty Sukanty; I Putu Bayu Agus Saputra; Lina Yunita
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2004

Abstract

Diabetes mellitus is a metabolic disease characterized by high blood glucose levels. The cause of glucose control failure is decreased insulin production by pancreatic β-cells and insulin resistance. Both lead to the obstacle of glucose uptake into cells. The mechanism of glucose uptake into cells is crucial in carbohydrate metabolism. This mechanism aims to produce energy in the form of ATP. The main signaling pathway after the process of glucose uptake is the PI3K/Akt pathway. This pathway involves many proteins activated by phosphorylation mechanisms. One of the proteins involved in this pathway is PTEN, a PI3K regulator. PTEN activity can dephosphorylate PI3K so that the insulin signaling pathway becomes blocked and glucose cannot be uptaken into cells. It causes blood glucose levels to increase. The role of PTEN in inhibiting the PI3K/Akt pathway seems to be a crucial matter to observe. By inhibiting PTEN activity, the insulin signaling pathway is expected to work properly. We have searched, read, analyzed, and summarized various studies regarding the potential of PTEN to reduce diabetes mellitus cases. In some research articles, the use of active compounds and therapy using stem cells to inhibit PTEN activity has shown good progress in the insulin signaling pathway. Based on these, it can be an option to make PTEN a target for diabetes mellitus therapy.
Website Development and Management Training as Information Publication Media in Tambong Village Banyuwangi Agus Priyo Utomo; Lukman Hakim; Ruth Ema Febrita
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2077

Abstract

Tambong Village is a regional unit in Banyuwangi Regency, which was currently a priority for the government to develop because it has potential that needs to be explored and developed to improve its citizens' welfare. Likewise, the development of human resources in rural areas should be prioritized so that regional competitiveness increases. One of the things that can trigger increased competitiveness between villages is to utilize information technology to provide information to residents and the broader community about what is in the village (for example, tourist attractions). For this reason, a website page is needed to convey information, and this page can also be used to report activities or other information to increase community enthusiasm to participate in the activities carried out. However, the village website page that has been provided has yet to be filled in with a content management system, so it cannot display information on activities and tourist attractions in Tambong village. It is because the village officials in charge of managing the village website still need more knowledge about the technical management of the information on the website. In addition, village officials also need knowledge and skills so that the information conveyed on the website can be packaged in an informative manner. Based on the needs of Tambong Village officials, this community service activity will train village officials on how to manage the website and use the Google Maps application so that the village website can be continuously updated and maximized to display quality information to the community and become information media to attract tourists to Tambong Village tourist attractions. After undergoing training, village officers were assigned to create website content, and villagers were asked to assess the quality of the content through a survey. The survey consisted of 9 questions and was conducted on 20 village residents. The survey results showed that the quality of the content created by the village officers was already good.
The Influence of Creative Problem-Solving Learning Assisted by Ethnomathematics Nuance Modules on Problem-Solving Ability and Curiosity Ida Fitri Kurnia; Suparman; Topan Rahmatul Iman
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2101

Abstract

Mathematics is often perceived as a complex and difficult lesson to solve, thus making students' mathematical problem-solving ability and curiosity low. This study aimed to analyze the influence of learning using the Creative Problem-Solving (CPS) method assisted by ethnomathematics nuance modules on the problem-solving ability and curiosity of class XI students at SMAN 1 Plampang. This research was a type of experimental research using a pre-experimental design with a one-group pretest–post–test design model. The data collection technique used purposive sampling to collect data as a sample of 35 students in class XI MIPA 1 from a total population of 105 students in class MIPA. The determination of the sample is based on the results of the average score in mathematics and discussion with the mathematics teacher. The results of the study showed that the influence of Creative Problem Solving (CPS) learning assisted by ethnomathematics nuance modules had a significant effect on students' problem-solving ability and students' curiosity in geometry transformation material at SMAN 1 Plampang.
Upaya Meningkatkan Motivasi Intrinsik Tenaga Kesehatan Covid-19 Berbasis Appreciative Inquiry di Laboratorium Kesehatan Parahita Diagnostic Center Setiawan, Himanto; Handoyo, Seger; Fajrianthi
Poltanesa Vol 23 No 2 (2022): Desember 2022
Publisher : P3KM Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v23i2.2103

Abstract

Motivasi intrinsik adalah kontrol pribadi atas kinerja sebagai penentu sebuah aktivitas yang menarik. Penelitian ini bertujuan untuk meningkatkan motivasi intrinsik tenaga kesehatan Swabber Covid-19 dengan cara merancang dan melakukan implementasi perencanaan strategis dengan basis appreciative inquiry pada laboratorium Parahita Diagnostic Center di Surabaya. Pada praktiknya, terdapat tiga aspek yang ditekankan ketika meningkatkan motivasi intrinsik yaitu, aspek kompetensi, otonomi dan keterkaitan. Kemudian, kegiatan workshop dengan berbasis appreciative inquiry memunculkan aksi tindakan nyata yang diimplementasikan oleh seluruh subjek. Metode pada penelitian ini menggunakan action research dengan pendekatan appreciative inquiry yang mempunyai siklus discovery, dream, design, dan destiny melalui media workshop pada 6 Swabber Covid-19 laboratorium Parahita Diagnostic Center. Pengukuran kesuksesan penelitian ini diukur hasil dari proses internalizes motivasi pasca intervensi yang telah diberikan. Hasil penelitian menunjukkan bahwa subjek memberikan penilaian positif pada kegiatan workshop serta mengikuti acara dengan semangat dan antusias. Kemudian, hasil dari penelitian ini menunjukkan bahwa subjek mengalami dampak perubahan baik secara individu maupun organisasi serta terlaksananya aksi tindakan yang telah dirancang. Secara singkat, proses implementasi intervensi yang dilakukan oleh Swabber membantu proses internalizes dengan semakin otonom, memberikan dampak dan perubahan positif dalam meningkatkan motivasi intrinsik.
The Role of Electronic Service Quality on E-Commerce Services Towards Customer Loyalty Joshua Enrico Sitompul; Hapsari Setyowardhani
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2121

Abstract

This study examines the quality of electronic services e-servqual and its impact on electronic service quality, customer loyalty through reuse intention, and word of mouth. The internet has become a bridge or connection that forms an extensive network in the exchange of information, enabling fast data transfer. With the internet, there are no longer boundaries between devices connected to the internet gateway in the global market. The presence of the internet in this global market allows individuals to communicate with others without limitations of time, distance, or boundaries. This has resulted in innovations in the ever-changing and increasingly modern world of transactions. The internet's presence in the global market has fostered communication without knowing boundaries, time, or distance. The impact of globalization enables businesses to expand both domestically and globally. Traveloka is a digital business application that caters to various needs in a location. The method used in this study is quantitative and employs purposive sampling. A total of 251 respondents, who are users of the Traveloka application, were processed using SmartPLS. The results indicate that all indicators of the six dimensions of the E-Servqual variables significantly and positively influence electronic customer satisfaction. One dimension, user-friendliness, has a more significant impact. Additionally, electronic customer satisfaction affects reuse intention and word of mouth. The data required for this study could be better because nearly half of the respondents are teenagers or adults who have used the Traveloka application for less than three years.
Vegetation Analysis on the Upper Mahakam River Border Suparjo; Herijanto Thamrin; Sri Jimy Kustini; F. V. Astrolabe Sian Prasetya; Rukmi; Iswinanto Denis
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2264

Abstract

Vegetation analysis on the upper Mahakam river border. The Mahakam River Basin (DAS) is very wide, reaching 7.724.300 Ha. The condition of the vegetation in the Mahakam watershed continues to change due to the development of plantations, mining, and settlements. On the other hand, efforts to maintain biological resources from the diversity of vegetation are needed to protect against extinction. Remote sensing data can be used to differentiate between primary and secondary vegetation economically. However, it has limitations for detecting vegetation composition and the number of individuals per unit area. Therefore, field surveys in the context of conducting vegetation analysis are still needed to complement remote sensing data. This study aims to analyze the vegetation in each growth phase, namely the seedling, sapling, pole, and tree phases on the Mahakam riverbank. The method used is to make observation plots of 13 plots for each growth phase. Plots of 2 x 2 m2 for seedling observation, 5 x 5 m2 for sapling level, 10 x 10 m2 for pole level, and 20 x 20 m2 for tree level observation. Based on data analysis, the seedling stage consisted of 30 species, the average number of stems was 25576.9 per ha, the species diversity index was 1.371, and the highest important value index was 21.8% of Coffea robusta. There were 17 species of saplings, an average number of 4,092.3 stems per hectare, a diversity index of 1,118, and the highest important value index of 39.5% from Theobroma cacao. The pole level contained 16 species, the average number of stems was 1023.1 per hectare, the diversity index was 1.138, and the highest interest index was 23.7% for Paraserianthes falcataria. The tree level consists of 30 species. The average number of stems is 255.8 per hectare, the diversity index is 1.282, and the highest important value index is 54.9% of Durio zibethinus. From the results of the study, it can be concluded that most of the vegetation in the Mahakam riverbank area is former fields or agricultural activities.
The Effectiveness of Reloud Model in Increasing Knowledge and Literacy of Health Reproduction’s Adolescents Based on Health Education in Samarinda City Zulkifli Umar; M. Ardan; Dwi Riyan Ariestantia
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2408

Abstract

Reloud aims to foster students' love for reading. Indonesian adolescent sexual reproductive health research states that 10% of those aged 15-24 have had premarital sex, used condoms (49% of women & 27% of men), had unwanted pregnancies 24%, knowing that their friends had abortions ( 23% of girls and 19% of boys) and 15% of them consume alcohol, this is influenced by various factors, one of which is the lack of information about adolescent reproductive health. Literacy in Indonesia is included in the low category (37.32%), so efforts to increase literacy are very urgent to be carried out as an effort to improve the quality of the Indonesian nation's resources. The target population in this study was health-based senior high school students in Samarinda City. The design of this study used a Quasi Experiment with a pre-posttest approach with a control group design. Samples were taken from as many as 3 (three) health-based schools in Samarinda city with a purposive sampling of 60 respondents. Characteristics of the dominant respondent are 16 years old (31.6%), female (65%), and in class X (38.3%). The results of data analysis on differences in the level of adolescent reproductive health knowledge obtained a p-value of 0.826 if no intervention was given, a p-value of 0.153 if given 1 (one) intervention, and a p-value of 0.001 if given 2 (two) Reloud interventions. Of the three groups that described the effectiveness of the Reloud intervention method, it occurred significantly in increasing adolescent knowledge related to reproductive health by a p-value of 0.031 so this method is one that can be applied to adolescents.
The Role of Extension Workers in Pepper Farming (Piper Nigrum) in Batu Timbau Village, Batu Ampar Sub-District, East Kutai District Muhamad Yazid Bustomi; Nursida; Riski Adi Pratama; Pandhu Rochman Suosa Putra; Andi Lelanovita Sardianti
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2428

Abstract

The development of pepper farming in Batu Timbau Village cannot be separated from the role of agricultural extension workers in encouraging and providing information to farmers. This study aimed to determine the role of extension workers in pepper farming in Batu Timbau Village, Batu Ampar Sub-District, which is seen from the aspects of motivators, educators, catalysts, organizers, and communicators. This research was carried out in 2021 in Batu Timbau Village, Batu Ampar Sub-District, East Kutai District. The sampling technique in this study used the census method with a total sample of 47 pepper farmers. The data analysis method used was descriptive statistics with a 3-item Likert scale. The results showed that the role of extension workers for pepper farmers in Batu Timbau Village was included in the role category seen from five aspects of the assessment. The role of extension workers for pepper farmers in the motivator aspect was included in the interval between 391.71 - 548.30 which is included in the role category with a value of 488. In the educational aspect, it is included in the interval of the role category with a value of 472. In addition, the aspect of organizers, communicators, and catalysts are in the interval of role categories with values of 485, 502, and 545 respectively.
Rice Availability Analysis in Kutai Kartanegara Regency 2023-2032 Laode Muh Asdiq Hamsin Ramadan
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2465

Abstract

East Kalimantan Province is one of the provinces with rice self-sufficiency agenda. Kutai Kartanegara is a regency in East Kalimantan Province with an area of ​​18659 ha of rice fields and is the largest rice supplier in the East Kalimantan region. So far there has been no research that examines the level of rice availability partially in the districts of East Kalimantan Province. This study aimed to predict population growth and the level of rice food security in Kutai Kartanegara Regency in 2023-2032. Develop various possible policy scenarios to achieve rice food security in Kutai Kartanegara Regency in 2023-2032. This research was conducted in the scope of Kutai Kartanegara Regency. The treatment of the research location was carried out purposively (purposive method) from April to May 2023. This research focused on one food commodity, namely rice. The results showed that Kutai Kartanegara Regency is predicted to experience a rice deficit in 2023-2032 with an average deficit of 32836.47 tons. Implementation of the existing rice field intensification policy can reduce the rice deficit that will occur until 2032 by 55%. The implementation of the new paddy field policy can reduce the rice deficit that will occur by up to 92%. The combination of the two land intensification policies and the creation of new rice fields can make Kutai Kartanegara Regency experience a surplus of rice until 2032 with an average surplus of 15613.86 tons.