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Soil Quality Evaluation of Inceptisol Based on the Alberta Card (Case Study of Horticultural Land in Titi Papan, Medan Deli District)
Get PDFSoil quality describes the suitability of the physical, chemical, and biological properties of soil that together function as a medium for plant growth. The Alberta Soil Quality Card is one method for evaluating soil quality through soil quality indicators, such as organic matter content, drainage, water-holding capacity, soil microorganisms, and erosion. This research was conducted to evaluate the Inceptisols soil quality of horticulture land in Titi Papan, Medan Deli District, based on the indicators listed in the Alberta Soil Quality Card to obtain appropriate soil management recommendations based on the evaluation results. The results of soil quality observation in the horticultural land of Titi Papan, Medan Deli District, indicate that the preferred score (P) is found in the indicators of plant/weed strength, nurseries, soil fertility, and salinity. A medium score (M) is obtained in the indicators of residue cover, organic material color, drainage/infiltration, aggregation, and soil life, including the presence of worms, compaction/rooting, and water erosion. The limiting factor with a low score (L) is obtained in the indicator of water holding capacity.
 
Finite Element Analysis and Root Cause Analysis of Wire Rope Failure in STS Cranes
Get PDFWire rope is a critical lifting component in Ship-to-Shore (STS) cranes, whose failure can lead to catastrophic system breakdowns, posing significant safety risks and operational losses. This study investigates the root causes of wire rope failure on a 40-ton capacity STS crane. The methodology integrates Root Cause Analysis (RCA) with a Finite Element Analysis (FEA) simulation using ANSYS Static Structural. The analyzed wire rope has a 28 mm diameter, a 6x36 IWRC configuration, and is made of galvanized high-carbon steel. Simulation results under full operational load revealed a maximum von Mises stress of 681 MPa, exceeding the material's yield strength (≈650 MPa), a total displacement of 16 cm, and a critically low safety factor of 0.53. The failure location was identified on the outer strands at the contact points with sheaves, indicating high-stress concentration zones. Furthermore, the calculated Safe Working Load (SWL) for a standard safety factor of 5 was 82.83 kN, which is drastically lower than the 400 kN operational load per rope, confirming severe overstress conditions. The RCA fishbone diagram identified key contributing factors: material specification mismatch, suboptimal sheave design, inadequate maintenance protocols, and insufficient design-stage analysis. The study concludes that the wire rope is unfit for service under current conditions and recommends immediate replacement, revised preventive maintenance schedules incorporating FEA, design optimization of support components, and implementation of real-time load monitoring systems
The relationship of physical activity, dietary patterns, and energy intake with overweight incidence among Sabhara members at Langkat police station
Get PDFOccupational Safety and Health (OSH) is an effort to ensure the physical and mental well-being of workers, which is essential for productivity. Health and work ability are closely related to nutritional status, where balanced calorie intake supports energy and effective task performance. Conversely, being overweight or obese increases the risk of degenerative diseases and is influenced by multifactorial causes such as genetics, lifestyle, and poor diet. This study aimed to examine the relationship between physical activity, dietary patterns, and energy intake with overweight among SABHARA members at the Langkat Police Headquarters as an important basis for health interventions. This study employed an analytical quantitative method with a cross-sectional design. The sample was obtained through simple random sampling, consisting of 49 members. The data collected included nutritional status (body scale, micrometer), energy intake (24-hour food recall), dietary patterns (FFQ), and physical activity (IPAQ Short-Form). The data were analysed using the Chi-Square test. The results showed that 57.1% of members were overweight, 18.3% had low physical activity, 53.1% had poor energy intake, and 49.0% had inadequate dietary patterns. The findings showed a significant relationship between physical activity, dietary patterns, and energy intake with overweight.
Application of Economic Production Quantity Method in Controlling the Production Level of Crude Palm Oil at PT. Perkebunan Nusantara IV Medan City
No full textPT. Perkebunan Nusantara IV is a subsidiary of an Indonesian State-Owned Enterprise engaged in oil palm and tea plantations. Crude Palm Oil as a derivative product of palm oil is one of Indonesia's mainstay export commodities. Inventory control at PT. Perkebunan Nusantara IV is a complicated matter. Therefore, one method that can be used to control raw materials is the EPQ (Economic Production Quantity) method where the EPQ method can determine the optimum production level, optimum production frequency, optimum cycle time to minimize inventory costs. By using the EPQ method, the optimum production level of Crude Palm Oil is 30,745,207,190 kg with the optimum time interval of 20 days in each production cycle and the company can save production costs of 3.94% for each production cycle
Common Property and Social Capital Governance in the Context of the Cibulao Coffee Forest Farmers Group in Tugu Utara Village, Cisarua District, Bogor Regency
Get PDFThis study aims to analyze the governance of common property and strengthening social capital in the Cibulao Coffee Forest Farmer Group (KTH) in Tugu Utara Village, Cisarua District, Bogor Regency. Using a qualitative approach with case studies, data were collected through in-depth interviews, participatory observations, and document studies. The results show that the synergy between collective ownership of forest resources and social capital based on trust, norms, and social networks creates a hybrid institution that supports sustainable forest management and community economic empowerment. However, this success is still limited to the micro scale and faces the risk of institutional exclusion if it is not integrated into the local political system in a participatory and strategic manner. David Easton's model and endogenous growth theory are used to map the challenges and opportunities for the long-term sustainability of the Cibulao Coffee KTH
The Influence of Cigarette Advertising on Teenagers' Attitudes Toward Cigarette Purchasing Decisions
Get PDFThis study aims to analyze the influence of cigarette advertising on adolescents' attitudes toward cigarette purchasing decisions and the role of the media in supporting the cigarette industry. Cigarettes have become a serious issue in global health due to their addictive substances that have a detrimental impact on health. Cigarette advertising, particularly through television and social media, is considered to greatly influence adolescents' perceptions of cigarettes as symbols of “coolness” and masculinity. This study employs a qualitative approach through Focus Group Discussions (FGD) and online media observation. The research findings indicate that most adolescents are unaware of the connection between advertising and their decision to purchase cigarettes; however, advertising still exerts an indirect influence on the formation of adolescents' opinions and attitudes. The study also found that weak government regulations and the widespread presence of cigarette advertisements exacerbate this situation. Therefore, strict oversight of advertisements and cigarette distribution, particularly those targeting teenagers, is crucial in efforts to control cigarette consumption in Indonesia
Corruption risks and potential threats to the forestry sector in Peninsular Malaysia
Get PDFCorruption and forest disturbances represent substantial barriers to sustainabledevelopment in Malaysia's forestry sector. Working within this sector faces avariety of threats. This study explores key corruption risks within the forestrysector, analysing the motives and opportunities that drive forest offences inPeninsular Malaysia. Respondents from relevant agencies were primarilysurveyed using questionnaires. Data analysis using SPSS revealed the corruptionrisks encountered within the forestry sector. Respondents identified fieldwork andreporting as potential areas susceptible to corruption, with their perceptionsanalyzed through central tendency and dispersion measures. Additionally,correlation analysis was conducted to determine the strength and direction of therelationship between motive and opportunity regarding forest offences, and toassess whether the correlation was statistically significant. The findingsdemonstrated a robust positive correlation (r = 0.66) between motive andopportunity, indicating a significant relationship. This suggests that motives forforest offences correspond to opportunities for such offences. This studyhighlights the need for targeted collaboration between the Forestry Departmentand relevant authorities to develop specialized training programs. These programsare crucial for effectively investigating and prosecuting forest violations,ultimately reducing corruption risk
Analysis of mangrove vegetation diversity in Pematang Kuala Village, Teluk Mengkudu Sub-district, Serdang Bedagai Regency, North Sumatra
Get PDFMangrove ecosystems are important in ecological, economic, and social aspects,especially for coastal communities. However, damage to mangrove ecosystemsdue to land-use changes for purposes such as settlements and fish ponds canthreaten their sustainability. This study aims to analyze the potential of themangrove ecosystem, apply the kao-kao model in silvofishery pond management,and analyze the potential of mangroves in increasing the income of the communityin Pematang Kuala Village, Teluk Mengkudu Sub-district, Serdang BedagaiDistrict, North Sumatra Province. The methods used include field surveys forvegetation analysis and interviews with Kelompok Usaha Bersama (KUB)Nelayan Sepakat members. Vegetation analysis was conducted in three zones:utilization zone I, II, and the protection zone. Each zone consisted of 5 plots,totaling 15 plots. Interviews were conducted with 27 respondents. The studyresults showed that the mangrove ecosystem in Pematang Kuala Village isdominated by Avicennia marina and Rhizophora mangle, with an important valueindex of 300 in both utilization and protection zones. In the protection zone, theShannon-Wiener diversity index was 0.95, indicating a low level of diversity.Based on the kao-kao system model, it was observed that the productivity of fishponds and fishermen's catch increased. Community income has significantlyincreased over the last five years, with an average net income of IDR 19,550,000every six months. The presence of mangroves also provides indirect benefits as acoastal protector from abrasion, with an estimated economic value of IDR247,950,000 per year
Solvent-Free Microwave Extraction: Analisis Fitokimia Minyak Atsiri Daun Ruku-Ruku (Ocimum tenuiflorum, L.) dan Aktivitas Antibakteri terhadap Escherichia coli
Get PDFHoly basil (Ocimum tenuiflorum, L.) is one of the aromatic herbs that grows in empty or abandoned areas. Previous studies used conventional methods, including maceration and hydrodistillation, to extract Ocimum tenuiflorum, L. Genetic variation, plant phenology, geographical conditions, and extraction techniques affect the yield and variability of essential oil phytochemical composition. Here in, we report essential oil extraction of Ocimum tenuiflorum green and purple using solvent-free microwave extraction. The yield calculation obtained from purple and green O. tenuiflorum essential oils was 2.25 and 2.17%, respectively. GCMS data shows that the phytochemical compounds in Ocimum tenuiflorum essential oils, purple and green leaves, are dominated by sesquiterpene and phenylpropene groups. In the essential oil of purple Ocimum tenuiflorum leaves, the major phytochemical compound components are methyl eugenol, β-Caryophyllene, and Germacrene-D. Antibacterial activity showed that Ocimum tenuiflorum purple essential oils a more preeminent effect against Escherichia coli than green
Gambaran Penderita Kanker Payudara Di Bawah Usia 40 Tahun di RSHAM Tahun 2020-2023
Get PDFBackground: Based on Globocan data in 2020, there were 68,858 new cases of breast cancer, which accounted for about 16.6% of the 396,914 total new cancer cases in Indonesia. The high incidence of breast cancer in Indonesia is not always accompanied by a complete histopathological and immunohistochemical examination. Breast cancer is rare under the age of 40 and women diagnosed with breast cancer under the age of 40 will have a poor prognosis, more aggressive cancer, high malignancy and high mortality rates. Objective: To find out the description of breast cancer patients under the age of 40 at RSHAM in 2020-2023. Method: The research is a descriptive study with a cross sectional design. The sample of this study is breast cancer patients under the age of 40 at RSHAM in 2020-2023 with total sampling technique. Results and Discussion: The results showed that the most common histopathological type is IDC as many as 34 patients (97.1%). The most immunohistochemical sub-type is luminal B as many as 16 patients (45.7%). The highest BMI is normal as many as 27 patients (77.1%). There is no family history of cancer in 35 patients (100%). The most common cancer stage was stage IV with 17 patients (48.6%) and stage IIIB with 14 patients (40%). The most histological grade is histological grade 2 as many as 19 patients (54.3%). Conclusion: The description of breast cancer patients under the age of 40 at RSHAM in 2020-2023 is the IDC histopathological type, luminal B immunohistochemical sub-type, normal BMI, no family history, stage IV, and histological grade 2.
Keywords: Histopathological, Immunohistochemical, Breast Cancer, IDC
Latar belakang: Berdasarkan data Globocan tahun 2020, terdapat 68.858 kasus baru kanker payudara, yang menyumbang sekitar 16,6% dari 396.914 total kasus kanker baru di Indonesia. Tingginya kejadian kanker payudara di Indonesia tidak selalu disertai dengan pemeriksaan histopatologi dan imunohistokimia yang lengkap. Kanker payudara jarang terjadi dibawah 40 tahun, dan jika terjadi lebih agresif dan memiliki prognosis yang buruk. Tujuan: Untuk menggambarkan pasien kanker payudara yang berusia dibawah 40 tahun. Metode: Penelitian ini merupakan penelitian deskriptif dengan desain cross sectional. Sampel penelitian ini adalah pasien kanker payudara dibawah usia 40 tahun di RSHAM tahun 2020-2023 dengan teknik total sampling. Hasil dan Diskusi: Hasil penelitian menunjukkan, jenis histopatologi terbanyak adalah IDC sebanyak 34 pasien (97,1%). Sub tipe imunohistokimia terbanyak adalah luminal B sebanyak 16 pasien (45,7%). IMT terbanyak adalah normal sebanyak 27 pasien (77,1%). Riwayat keluarga menderita kanker tidak ada sebanyak 35 pasien (100%). Stadium kanker terbanyak adalah stadium IV sebanyak 17 pasien (48,6%) dan stadium IIIB sebanyak 14 pasien (40%). Derajat histologi terbanyak adalah derajat histologi 2 sebanyak 19 pasien (54,3%). Kesimpulan. Gambaran penderita kanker payudara dibawah usia 40 tahun di RSHAM tahun 2020-2023 menunjukkan bahwa jenis histopatologi terbanyak adalah IDC dengan sub tipe terbanyak adalah luminal B. Stadium dan derajat histologi terbanyak adalah stadium IV dan derajat 2. Hasil penelitian ini menunjukkan bahwa kanker payudara pada usia dibawah 40 tahun lebih agresif meskipun tidak memiliki riwayat keluarga.
Kata Kunci: Histopatologi, Imunohistokimia, Kanker Payudara, IDC