EJurnal Universitas Negeri Gorontalo
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Noise exposure, work duration, and hearing loss in a palm-oil mill: a cross-sectional study
No full textOccupational noise exposure remains an important hazard in industrial settings and is associated with an increased risk of hearing impairment. This study aimed to estimate the prevalence of hearing loss and to examine its association with workplace noise intensity and job tenure among palm-oil mill workers. An analytical cross-sectional study was conducted involving 95 workers selected through total sampling. Noise intensity was measured at 12 workstations using a sound level meter and categorized as 85 dB or ≥85 dB, while hearing status was assessed using the ScreenOut hearing screening application. Hearing loss was identified in 9 of 95 workers (9.5%), with a mean age of 47 ± SD years. Among workers exposed to noise ≥85 dB (n = 28), hearing loss occurred more frequently than among those exposed to 85 dB (n = 67), and this association was statistically significant (χ² test, p = 0.01; odds ratio [OR] = 5.82; 95% CI: 1.34–25.26). In contrast, job tenure ≥20 years (n = 58) was not significantly associated with hearing loss compared with 20 years (n = 37) (p = 0.283; OR = 1.41; 95% CI: 0.67–2.99). These findings indicate that higher noise intensity is associated with increased odds of hearing loss in this workforce, highlighting the importance of noise control measures, consistent use of personal protective equipment, and regular hearing screening in high-noise industrial environments
STRATEGI PENGEMBANGAN USAHA TEH DAUN SIRSAK SADAPUTEA PADA UKM MAFAHIM GORONTALO DESA HELUMO KECAMATAN MOOTILANGO KABUPATEN GORONTALO
No full text Penelitian ini Bertujuan Untuk : 1) Mengidentifikasi faktor internal dan eksternal yang ada dalam menjalankan usaha dan 2) Merumuskan strategi alternatif dalam pengembangan usaha Teh Daun Sirsak Sadaputea Pada UKM Mafahim Gorontalo Desa Helumo Kecamatan Mootilango Kabupten Gorontalo. Metode yang digunakan dalam Penelitian ini adalah metode survei, dengan jenis data primer dan data sekunder. Teknik analisis data yang digunakan yaitu analisis SWOT melalui beberapa tahapan yaitu pembobotan menggunakan tabel EFAS dan IFAS. Hasil Penelitian yaitu 1) Aspek-aspek yang ada dalam lingkungan internal antara lain: (a) bahan baku mudah diperoleh, b) harga yang cukup terjangkau, c) daya tahan produk, d) proses produksi, dan 2) Aspek lingkungan eksternal yaitu ; a) perkembangan teknologi, b) dukungan pemerintah, c) masuknya produk sejenis yang lebih murah, d) ancaman pendatang baru yang membuat produk sama.Posisi Usaha Teh Daun sirsak Sadaputea UKM Mafahim Gorontalo berada pada Kuadran I (Agresif), sehingga strategi yang paling utama dapat diterapkan adalah Strategi SO yaitu Menjaga kestabilan harga dan meningkatkat kualitas produk sehingga memberikan rasa puas kepada konsumen.Penelitian ini bertujuan untuk: 1) Mengidentifikasi faktor internal dan eksternal yang ada dalam menjalankan usaha dan 2) Merumuskan strategi alternatif dalam pengembangan usaha the daun sirsak pada UKM Mafahim Gorontalo Desa Helumo Kecamatan Mootilango Kabupten Gorontalo. Metode yang digunakan dalam Penelitian ini adalah metode survei, dengan jenis data primer dan data sekunder. Teknik analisis data yang digunakan yaitu analisis SWOT melalui beberapa tahapan yaitu pembobotan menggunakan tabel EFAS dan IFAS. Hasil Penelitian yaitu 1) Aspek-aspek yang ada dalam lingkungan internal antara lain: (a) bahan baku mudah diperoleh, b) harga yang cukup terjangkau, c) daya tahan produk, d) proses produksi, dan 2) Aspek lingkungan eksternal yaitu; a) perkembangan teknologi, b) dukungan pemerintah, c) masuknya produk sejenis yang lebih murah, d) ancaman pendatang baru yang membuat produk sama.Posisi Usaha Teh Daun sirsak Sadaputea UKM Mafahim Gorontalo berada pada Kuadran I (Agresif), sehingga strategi yang paling utama dapat diterapkan adalah Strategi SO yaitu Menjaga kestabilan harga dan meningkatkat kualitas produk sehingga memberikan rasa puas kepada konsumen
The Relationship between Self Management and Quality of Life of Type 2 Diabetes Mellitus Patients in the Telaga Health Center Work Area through Dorothea Orem's Self Care Approach
No full textDiabetes mellitus is a disease that can cause complications in various organs of the body so that it requires long-term treatment. Inadequate management causes sufferers to experience complications that can affect their quality of life. The impact on quality of life can be minimized through self-management. The decrease in quality of life in diabetes mellitus patients is also often accompanied by the patient's inability to carry out self-care independently, which is known as self-care. The aim of the research is to determine the relationship between self-management and the quality of life of Type 2 diabetes mellitus patients in the Telaga Community Health Center working area through Dorothea Orem's self-care approach. The population in this study was 194 Diabetes Mellitus patients. The sample in the study consisted of 66 respondents using a purposive sampling technique. The research instrument used the Diabetes Quality of Life (DQOL) questionnaire, the DSMQ (Diabetes Self Management Questionnaire) questionnaire. The results of this study show a p-value of 0.031 so it can be concluded that there is a significant relationship between self-management and the quality of life of Type 2 diabetes mellitus patients in the Telaga health center working area through the Dorothea Orem self-care approach
Comparison of Science Process Skills of Students at SMAN 16 Samarinda Based on Gender
No full textScience process skills (SPS) are essential competencies in chemistry learning that support development of scientific thinking and evidence-based problem solving. This study aimed to analyze differences in students' SPS based on gender in chemistry learning at a public senior high schools in Samarinda. The study used a retrospective comparative quantitative approach. The SPS data were collected by using documentation technique involving 65 SPS of eleventh grade students (31 males and 34 females) who programmed chemistry subject. SPS data were analyzed descriptively and inferentially using the Mann-Whitney U test (α = 0.05). The results showed that there was no significant difference in overall SPS between male and female students (p = 0.333) and in most indicators (p > 0.05), except for the observation indicator (p = 0.004), with female students having a slightly higher descriptive mean. These findings confirm that mastery of SPS is more influenced by the quality of the learning process than by gender factors, thus contributing empirically to the application of inclusive science learning oriented towards scientific activities
Two-Tier Diagnostics for Evaluating Submicroscopic Representations in Stoichiometry
No full textStoichiometry is a fundamental concept in chemistry that requires students to coordinate symbolic calculations with submicroscopic representations of particles and reactions. However, previous studies consistently show that students often rely on algorithmic procedures without developing coherent particle-level reasoning, leading to persistent misconceptions. This representational gap remains a major challenge in Basic Chemistry instruction. Therefore, this study aimed to examine the effectiveness of audiovisual-supported Problem-Based Learning (PBL) in enhancing students’ submicroscopic representational ability in stoichiometry using a two-tier diagnostic approach. A quasi-experimental design with a posttest-only comparison was employed involving 33 undergraduate students enrolled in a Basic Chemistry course. Participants were divided into two groups with equivalent initial ability distributions: an experimental group receiving PBL integrated with audiovisual media (n = 16) and a control group receiving PBL without audiovisual support (n = 17). Students’ submicroscopic understanding was measured using a two-tier multiple-choice diagnostic test assessing both response accuracy and particle-level reasoning. Data were analyzed through descriptive statistics, diagnostic category profiling, and effect size estimation. The results reveal that the experimental group demonstrated substantially higher levels of coherent submicroscopic representation and significantly lower misconception rates than the control group. Learning gains were consistent across all stoichiometry subtopics, with particularly strong effects observed in relational and inferential tasks such as particle ratio interpretation and limiting-reactant reasoning (Cohen’s d = 1.41). These findings indicate that audiovisual-supported PBL effectively facilitates students’ transition from procedural problem solving to meaningful particle-level understanding. The study underscores the importance of integrating representationally rich instructional media and diagnostic assessments to promote deeper conceptual learning in stoichiometry and chemistry education
EKSPLORASI SARANA DAN PRASARANA PJOK DALAM MENDUKUNG PROSES PEMBELAJARAN: STUDI KUALITATIF
No full textSarana dan prasarana merupakan komponen penting dalam mendukung kualitas pembelajaran Pendidikan Jasmani, Olahraga, dan Kesehatan (PJOK), namun banyak sekolah masih menghadapi keterbatasan fasilitas sehingga proses pembelajaran tidak berlangsung secara optimal. Penelitian ini bertujuan untuk mengeksplorasi kondisi aktual sarana dan prasarana PJOK, pola pemanfaatannya oleh guru, kendala yang dihadapi selama pelaksanaan pembelajaran, serta strategi optimalisasi yang dilakukan sekolah di Kecamatan Kadipaten. Penelitian ini menggunakan pendekatan kualitatif dengan desain fenomenologi, melibatkan empat guru PJOK sebagai informan yang dipilih melalui teknik purposive sampling. Data dikumpulkan melalui wawancara mendalam, observasi, dan dokumentasi, kemudian dianalisis menggunakan teknik analisis fenomenologis. Hasil penelitian menunjukkan bahwa sarana dan prasarana di empat sekolah masih berada pada kategori terbatas, ditandai dengan kondisi lapangan yang tidak layak, peralatan yang aus dan jumlahnya tidak mencukupi, serta fasilitas pendukung yang kurang terawat. Guru memanfaatkan fasilitas secara adaptif melalui rotasi kelompok, penggunaan alat alternatif, improvisasi bahan lokal, serta pemanfaatan ruang-ruang alternatif untuk menjaga keberlangsungan pembelajaran. Kendala utama meliputi keterbatasan anggaran, kerusakan alat yang sering terjadi, pengaruh cuaca, keterbatasan ruang penyimpanan, serta hambatan administratif dalam pengadaan fasilitas. Strategi optimalisasi dilakukan melalui kerja sama dengan komite sekolah dan masyarakat, kegiatan gotong royong, pembuatan alat sederhana, serta pelatihan internal guru. Penelitian ini menegaskan perlunya dukungan kebijakan, alokasi anggaran yang memadai, dan sistem pemeliharaan fasilitas yang terstruktur untuk meningkatkan kualitas pembelajaran PJOK secara berkelanjutan
Prediction of Land Use/Land Cover Change in the New Telaga City Plan Area, Gorontalo Province
No full textThe development of the Telaga City planning area as a new city in the peri-urban area controls urban expansion while promoting equitable development and economic growth. However, high pressure from population growth, economic growth, and the need for developed land in peri-urban areas risks triggering land use incompatibility and a decline in environmental quality. In anticipation of these threats, this study aims to predict changes in land use/land cover (LU/LC) in the Telaga City planning area as a basis for future spatial planning. This research is experimental in nature, testing the influence of regional dynamics on changes in LU/LC. The novelty of this research lies in the use of high-resolution SPOT 6/7 image interpretation LU/LC maps, which enable more detailed and accurate identification of changes in LU/LC. The methods used include (1) Euclidean distance and data normalization to obtain data ready for use in the prediction process; and (2) Pearson correlation, Artificial Neural Networks (ANN), Cellular Automata (CA), and Kappa Accuracy for the prediction process. The analysis results show that the ANN model is able to capture the nonlinear relationship between driving factors and land transitions well, as indicated by a kappa validation accuracy value of 91.69%. The prediction results for the 2023–2033 period show that the dominance of vegetated areas will continue, but residential/mixed-use land will experience consistent growth, especially in the southern part, indicating strong urban development pressure. Therefore, the results of this study emphasize the need for LU/LC planning and control to minimize land use incompatibility
Stratigraphic Synthesis of the Danau Rayo Geosite: Possible Impact Fragmentation
No full textLake Rayo in West Sulawesi, Indonesia, has been proposed as a potential meteorite impact structure, yet direct evidence supporting this origin remains limited. This study aims to provide a preliminary stratigraphic and granulometric characterization of Lake Rayo’s basin fill to clarify its genesis and support its geoheritage significance. Core sediment samples were collected from the basin floor and analyzed for grain size distribution, color (Munsell system), texture, and crack morphology using standard laboratory techniques. Seven stratigraphic intervals (BR1–BR7) were identified, showing clear vertical variations in granulometric parameters, sorting, and sediment color. Distinct fragmentation horizons, changes in color, and the occurrence of bedding cracks were interpreted as possible signatures of high-energy events, potentially associated with a meteorite impact. Comparative analysis with established impact structures, such as Lonar and Ries, revealed similar sedimentological features, supporting the impact hypothesis. These findings provide initial scientific evidence for the classification of Lake Rayo as an impact-related geoheritage site in Indonesia. The study also highlights the importance of integrating sedimentological data with future multidisciplinary research—such as geochemical and mineralogical shock analysis—to substantiate the impact origin more robustly. Overall, the results contribute valuable insights for geoheritage conservation, geoeducation, and the broader understanding of rare impact structures in Southeast Asia
Estimating Urban Land Surface Temperature Using Spatial Machine Learning in Gorontalo City
No full textUrban expansion in tropical cities significantly alters surface thermal conditions, intensifying the urban heat island (UHI) phenomenon. This study aims to estimate and analyze the spatiotemporal dynamics of land surface temperature (LST) in Gorontalo City from 1995 to 2025 using a spatial machine learning (SML) approach based on the Random Forest (RF) algorithm. Multitemporal Landsat 5, 7, 8, and 9 images were processed in Google Earth Engine (GEE) to derive surface reflectance, Normalized Difference Vegetation Index (NDVI), emissivity, and brightness temperature, which were subsequently employed as predictor variables in the LST model. A total of 50 ground validation points were used to assess model performance. The RF model achieved high predictive accuracy with an R² of 0.833, RMSE of ±3.33 °C, and MAE of ±2.80 °C, outperforming conventional NDVI-based models. The long-term analysis revealed a consistent increase in LST across urbanized zones, particularly in the city center and northern districts, while areas with higher vegetation cover exhibited lower LST values. The negative correlation between NDVI and LST (R² = 0.3132) confirms the critical role of vegetation in mitigating urban thermal intensity. These findings highlight the applicability of the RF-based SML framework for accurate LST estimation and urban climate monitoring, providing a scientific basis for sustainable urban planning and green infrastructure development in tropical cities
Faktor-Faktor Yang Mempengaruhi Mahasiswa Pendidikan Ekonomi Terhadap Memilih Jurusan Pendidikan Ekonomi
No full textThis study aims to determine the influence of program image, career prospects, and accreditation on students' decisions to choose the Economics Education Program in the Faculty of Economics and Business, Universitas Negeri Gorontalo.A quantitative approach was used in this study. Primary data were collected through questionnaires distributed to the 2024 cohort of Economics Education students, with a total sample of 66 respondents. Data analysis was conducted using multiple linear regression with IBM SPSS Statistics version 21.0. Based on the analysis and discussion, the factor significantly influencing Economics Education students in choosing the program is the program image. The partial statistical test (t-test) for the program image variable (X1) yielded a t-count t-table of 2,549 1,998, with a significance level of 0,013 (0.05), indicating that the hypothesis stating "there is an influence of program image on students' decision to choose the program" is confirmed. The career prospects variable (X2) yielded a t-count t-table of 6,003 1,998 with a significance level of 0,000 ( 0.05), thus the hypothesis stating "there is an influence of career prospects on students' decision to choose the program" is confirmed. Likewise, the accreditation variable (X3) yielded a t-count t-table of 5,187 1,998 and a significance level of 0,000 (0.05), thus the hypothesis stating "there is an influence of accreditation on students' decision to choose the program" is confirmed