Publication Search

Malaria remains a major public health challenge in eastern Indonesia, particularly in the remote highland areas Papua, where access to health services is very limited. In early 2008, a suspected malaria outbreak with several deaths was reported in Agisiga District, a remote highland area in Papua. This study aimed to investigate the epidemiological characteristics, diagnostic results, and mortality patterns of the malaria outbreak as a basis for formulating future control strategies. The outbreak investigation was conducted using a cross-sectional design in Agisiga District from January to March 2008. Capillary blood samples were examined using Rapid Diagnostic Tests (RDTs) and thin blood smear microscopy. Malaria-related deaths were traced through verbal autopsy methods and interviews with families and community leaders. Descriptive analysis was performed to describe the demographic, clinical, and parasitological characteristics the cases. A total of 92 suspected malaria cases were identified, with the highest proportion coming from Tomosiga Village (52.2%), followed by Bigasiga Village (40.2%) and Agisiga Village (7.6%). Women accounted for 58.7% of all cases, and the most affected age group was 15–35 years (34.8%). Microscopic examination confirmed malaria infection in 55.0% of samples examined, with Plasmodium vivax predominating (45.0%), while the RDT positivity rate was much lower. The malaria outbreak in Agisiga District was characterized by high mortality, delayed diagnosis, and significant gaps in diagnostic capacity, particularly in remote villages. Strengthening the surveillance system, increasing diagnostic capacity, and improving access to timely treatment are crucial steps prevent similar outbreaks and reduce malaria mortality in the Papuan highlands.

This study aims to analyze the characteristics of the soil at PIT North with two highwall and lowwall locations at PT Karya Putra Borneo, Kutai Kartanegara Regency, East Kalimantan Province. The research method was carried out by collecting primary data from the results of field tests using the sondir method with the Cone Penetration Test(CPT) tool and laboratory tests using physical properties, specific gravity, grain size, soil consistency, and consolidation tests, as well as secondary data from the results of literature studies. The parameters analyzed for soil characteristics include the sondir cone resistance (qc) value, grain size fraction distribution, soil plasticity index, and the rate of land subsidence through consolidation. The results showed that at PIT North the highwall area had a qc value of 5.6 Mpa, Fr 0.2%, IP 8.06%, Cc 1, a large rate of land subsidence of 3.3 mm with a settlement period of 4 years. In the lowwall area with a qc value of 10.31 Mpa, Fr 0.16%, IP 6.39%, Cc 0.535, the rate of settlement was 4.4 mm with a settlement period of 3 years. From these results, it is concluded that the soil at the highwall and lowwall locations has different compressibility, seeing the different soil Cc values and the soil plasticity index that affect the compressibility level of the soil and the value of the land settlement rate.

Soil strength characteristics are strongly influenced by its physical and mechanical properties, one of which is shear strength. Soil shear strength is affected by cohesion (c), internal friction angle (ϕ), and soil moisture conditions. In open-pit mining conditions, soil moisture content is greatly influenced by rainfall and water seepage, which can increase the degree of saturation within the soil mass. An increase in the degree of saturation generally leads to a rise in pore water pressure, thereby reducing the effective normal stress and resulting in a decrease in soil shear strength. This study aims to determine the effect of the degree of saturation on soil shear strength. This research employs a quantitative method to analyze the influence of the degree of saturation under three conditions (natural, dry, and saturated) on soil shear strength through laboratory testing using the direct shear test. The tests conducted include soil physical properties testing in accordance with SNI 1965-2008, specific gravity testing based on SNI 1964-2008, and soil shear strength testing following SNI 3420-2016. The results indicate that the average degree of saturation under natural conditions is 64.63% with a cohesion value of 7.4 kN/m², under dry conditions is 33.18% with a cohesion value of 8.2 kN/m², and under saturated conditions is 83.08% with a cohesion value of 3 kN/m². It can be concluded that a higher degree of saturation or more saturated soil samples result in lower cohesion values, whereas a lower degree of saturation or drier soil samples lead to higher cohesion values.

Landslides in the Giritengah Catchment Area are influenced by several factors, including geological conditions, rainfall intensity, geomorphology, soil characteristics, and inappropriate land use practices, all of which affect regional spatial planning and environmental stability. This study presents a literature review that analyzes landslide vulnerability, evaluates the impact of land use changes, and proposes integrated Soil and Water Conservation Techniques (SWCT) to support sustainable land management. The analysis applies Geographic Information System methods using thematic map overlays such as rainfall distribution, slope gradient, geological structure, and land use patterns. The results show that areas categorized as having high landslide vulnerability cover 44.02% or approximately 158.69 hectares of the catchment area, while areas with very low vulnerability account for only 0.12% or about 0.79 hectares. Land use conversion, particularly mixed dryland agriculture, has increased landslide risk by reducing slope stability and increasing surface runoff. To address this issue, conservation strategies are recommended, including vegetative measures such as greening 38.51 hectares in settlement areas and implementing agroforestry systems across 218.48 hectares. In addition, structural measures such as three dam retainers and twenty gully plugs are proposed in both protected and cultivation zones to support disaster mitigation and align with regional spatial planning policies.

Acid mine drainage (AMD) is characterized by low pH and high concentrations of heavy metals such as iron (Fe) and manganese (Mn) that exceed environmental quality standards, thus requiring effective treatment to prevent environmental pollution. This study aims to evaluate the ability of a mixture of activated carbon derived from pineapple leaves mixed with coal to increase pH and reduce Fe, Mn, and Total Suspended Solids (TSS) levels in acid mine drainage at PT Alreksa Bara Mitra. The process to make activated carbon involved preparation, carbonization, and activation processes on the pineapple leaves and coal separately. The following step is to mix but pineapple leaves and coal the has been activated. The treatment was conducted using an adsorption method with variations in adsorbent mass of 4 g, 8 g, and 12 g and a contact time of 30 minutes. The parameters analyzed included pH, Fe, Mn, and TSS before and after treatment, and the results were compared with the quality standards stipulated in Minister of Environment and Forestry Regulation No. 05/2022. The results showed that the characteristics of the activated carbon mixture met the SNI 06-3730-1995 standard. Increasing the adsorbent mass contributed to the rise in pH from 5.5 to near the acceptable range of 6–9 and significantly reduced Fe, Mn, and TSS concentrations below the permitted limits.The findings indicate that the mixture of pineapple leaf- and coal-based activated carbon is an effective, economical, and environmentally friendly alternative adsorbent for acid mine drainage treatment.

Higher education management at the master's level currently faces urgent challenges, namely learning fatigue and low engagement among professional students, especially in Prior Learning Recognition (RPL) classes. Currently, lecturers still tend to apply conventional learning methods based on static presentations that fail to accommodate andragogical characteristics due to a lack of dynamic interaction. Therefore, this study aims to evaluate the effectiveness of the “Humanistic Digital Andragogy” approach through the integration of gamification (Kahoot) and visual thinking (Whimsical) in the Strategic Human Resource Management course. The researchers used a descriptive qualitative design with thematic analysis and collected data through feedback from students in the Master of Management Program (Semarang and Sorong classes). The results revealed that technology served as a double catalyst: Whimsical visualization effectively reduced the cognitive load of complex strategy material, while competition in Kahoot triggered positive adrenaline (eustress) that increased attention. These findings confirm that the success of technology is highly dependent on the role of lecturers as humanistic facilitators (high-touch). This synergy has been proven to change students' perceptions of HRM from merely administrative to strategic partners, as well as creating learning satisfaction that is relevant to the world of work.

This study aims to analyze how the TikTok and Instagram Reels algorithms play a role in the distribution of multimedia content and their implications for content visibility, user engagement, and digital marketing practices. The research method used is a qualitative approach through a Systematic Literature Review by analyzing articles from accredited national journals and reputable international journals published in the period 2020-2025. The literature search process was carried out systematically through openly accessible scientific databases, then selected using inclusion and exclusion criteria to ensure the relevance and quality of the sources. The research findings show that the TikTok and Instagram Reels algorithms both rely on analysis of user behavior, initial engagement levels, and the characteristics of short-form audiovisual content in determining content distribution. TikTok emphasizes an interest-based recommendation system that allows content from new creators to gain broad reach, while Instagram Reels combines algorithmic recommendations with established social networks. The implications of this study emphasize that understanding the mechanics of algorithms is a strategic factor for content creators, business actors, and digital marketing practitioners in designing effective, adaptive, and sustainable multimedia content distribution strategies.

This study is based on the fact that history learning in secondary schools is still dominated by a memorization-based approach, which does not fully encourage deep understanding or interest in learning among students, while the characteristics of the digital generation demand more interactive, visual, and participatory strategies. This study aims to examine the urgency of utilizing interactive media in history learning, identify relevant forms of media, and explain their implications for the quality of the learning process and outcomes. The method used is a literature study examining various recent studies on the use of interactive multimedia, digital e-books, historical videos and simulations, and educational games in history learning. The results of the study show that the use of interactive media contributes to increasing interest and motivation in learning, strengthening understanding of concepts and the chronology of events, and developing students' critical and historical thinking skills, while encouraging a shift in the role of teachers to become facilitators and innovators of learning. Therefore, its integration needs to be designed in a targeted and contextual manner to be in line with the characteristics of students and the demands of 21st-century learning.

This study aims to analyze the discretion of family planning counselors in implementing contraceptive policies and the influence of acceptors' socio-demographic characteristics in Demak Regency. Using a mixed-methods approach with a sequential explanatory design, the study included 89 respondents for quantitative analysis and five key informants for in-depth interviews. The results showed a strong positive correlation between counselor discretion and acceptor socio-demographic characteristics (r = 0.646; p < 0.001), which explained 41.7% of the variance in discretionary practices. Counselors adapted communication strategies based on the age, education, geographic location, and culture of acceptors. Policy implementation faced obstacles in the counselor-community ratio (1:23) and the dominance of short-term contraceptive choices due to socio-cultural influences. Theoretical implications enrich the literature on street-level bureaucracy, while practical implications recommend strengthening counselors' capacity, increasing the ideal ratio, and implementing IEC strategies tailored to local culture. Limitations include a single geographic focus and a cross-sectional design. Future research is suggested to use longitudinal designs and multi-regional comparative studies to explore the dynamics of discretion in different socio-cultural contexts.

This research was conducted in April 2024 in Kota Besi Hulu Village, Kota Besi Subdistrict, Kotawaringin Timur Regency. The research location was determined purposively. The objectives of this study were: (1) to analyze the characteristics of tomato farmers in Kota Besi Hulu Village, Kota Besi Subdistrict, Kotawaringin Timur Regency; and (2) to analyze the factors influencing tomato production in the same area. The sampling technique employed was a census (saturated sampling), in which all active tomato farmers who were members of farmer groups in Kota Besi Hulu Village were included as respondents. A total of 64 tomato farmers participated in this study. The data collected were analyzed using the Cobb–Douglas production function model. The results of the study in Kota Besi Hulu Village, Kota Besi Subdistrict, Kotawaringin Timur Regency, indicate important patterns in local farming practices based on data regarding land area, fertilizer use, seed use, pesticide use, and tomato production. The majority of farmers cultivated land ranging from 7,060.12 to 7,614.72 hectares, reflecting a tendency to manage relatively large farm areas. In terms of fertilizer application, most farmers used between 130.05 and 139.53 kilograms, suggesting a preference for higher input levels to achieve optimal yields. Regarding seed use, the dominant range was between 156.04 and 175.36 kilograms, which may contribute to better production outcomes. Pesticide application also showed a dominant pattern within the range of 4,001.72 to 4,878.76 liters, indicating farmers’ primary strategy in controlling pests and diseases.

This study analyzes the similarities and differences between Japanese and Indonesian compound words, with particular attention to their structural patterns and semantic characteristics. The data were collected from official news websites in Japan and Indonesia, including Asahi Shinbun and Kompas, through observation and note-taking techniques. The collected data were analyzed through the distributional method, and the contrastive analysis was conducted based on morphological theories proposed by Chaer (2015), Katamba (2018), and Kageyama (2016). The findings reveal that ten Japanese and Indonesian compound words share equivalent meanings. From a structural perspective, both languages exhibit various types of compound formations, including noun, adjective, and verb compounds. A notable structural difference is that Japanese compound words may undergo a phonological process known as rendaku. From a semantic perspective, compound words in both languages may be categorized as endocentric and exocentric. However, some compounds do not share the same idiomatic meanings, even though they are constructed from identical lexemes in each language.  

This study analyzes the similarities and differences between Japanese and Indonesian compound words, with particular attention to their structural patterns and semantic characteristics. The data were collected from official news websites in Japan and Indonesia, including Asahi Shinbun and Kompas, through observation and note-taking techniques. The collected data were analyzed through the distributional method, and the contrastive analysis was conducted based on morphological theories proposed by Chaer (2015), Katamba (2018), and Kageyama (2016). The findings reveal that ten Japanese and Indonesian compound words share equivalent meanings. From a structural perspective, both languages exhibit various types of compound formations, including noun, adjective, and verb compounds. A notable structural difference is that Japanese compound words may undergo a phonological process known as rendaku. From a semantic perspective, compound words in both languages may be categorized as endocentric and exocentric. However, some compounds do not share the same idiomatic meanings, even though they are constructed from identical lexemes in each language.  

Lifestyle changes, such as smoking habits, low physical activity, and suboptimal sleep patterns, have the potential to affect various health indicators. However, empirical evidence showing a direct link between lifestyle factors and objective health indicators still shows varying results. This study aims to analyze the relationship between lifestyle factors and health indicators in adult respondents, in an effort to provide an empirical picture of behavioral factors related to health conditions. This study used a quantitative approach with a cross-sectional observational analytic design. Data were obtained from 94 respondents who had complete lifestyle data and health examination results. Lifestyle factors analyzed included smoking habits, exercise frequency, and sleep duration, while health indicators included body mass index (BMI), systolic and diastolic blood pressure, blood sugar levels, cholesterol, uric acid, and pulse rate. Data analysis was performed using descriptive statistics, the Shapiro–Wilk normality test, and the Spearman correlation test according to the characteristics of the data distribution. The results showed that smoking habits were significantly associated with diastolic blood pressure (p < 0.05), exercise frequency was significantly associated with BMI and systolic blood pressure (p < 0.05), and sleep duration was significantly associated with uric acid levels (p < 0.05). Meanwhile, the relationship between lifestyle factors and other health indicators did not show statistical significance. These findings indicate that the influence of lifestyle on health is specific to certain indicators and is not evenly distributed across all health parameters. This study concludes that identifying lifestyle factors relevant to certain health indicators is important as a basis for formulating more targeted health promotion strategies.

Career selection is an important process for students at Darussalam Gontor University (UNIDA) because it influences their academic development and future employment. However, many UNIDA students experience difficulties in determining suitable careers due to a lack of understanding of their psychological characteristics. This study aims to build a Decision Support System (DSS) for career recommendations for UNIDA students based on psychological test results using the Simple Additive Weighting (SAW) method. The psychological data used are non-clinical test results collected through a structured questionnaire from six respondents and converted into numerical scores. The research stages include determining criteria and weights, compiling a decision matrix, normalization process, calculating preference values, and ranking career alternatives using SAW. The career alternatives used consist of academics, corporate professionals, entrepreneurs, managers, and social/public services. The results show that the managerial career alternative obtained the highest preference value of 0.861, followed by entrepreneurs at 0.824, corporate professionals at 0.778, social/public services at 0.737, and academics at 0.703. These findings demonstrate that the SAW method is capable of providing objective and systematic career recommendations based on the psychological profiles of UNIDA students. This research is expected to assist UNIDA students and academics in making more informed career decisions tailored to individual characteristics

Hypertension is a major modifiable risk factor contributing to the development of Acute Coronary Syndrome (ACS), which includes STEMI, NSTEMI, and unstable angina. The increasing prevalence of hypertension worldwide raises concern regarding its impact on cardiovascular outcomes. This study aimed to describe the profile of ACS patients with hypertension receiving angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin receptor blockers (ARBs) therapy in the Intensive Coronary Care Unit (ICCU) of RSUD Dr. Soetomo Surabaya. Using a descriptive cross-sectional method, data from 91 patients treated between July 2021 and October 2024 were analyzed. Variables included demographic characteristics, clinical classification of ACS, hypertension degree, comorbidities, types and doses of ACEI/ARB administered. The results showed that most patients were male (73%) and aged over 65 years (40%). Chi-square analysis revealed no significant relationship between hypertension degree, ACS classification, or most comorbidities with drug selection or dosage (p>0.05), except for a significant association between coronary heart disease comorbidity and ARB selection. These findings suggest that in hypertensive ACS patients, the choice between ACEI and ARB therapy is predominantly based on individual comorbidity profiles rather than blood pressure severity or ACS type. The study highlights the importance of personalized treatment approaches considering patient comorbidities to optimize cardiovascular outcomes.

Children with special needs require specialized educational services that accommodate their diverse learning characteristics, and digital-based media offers flexible and adaptive learning opportunities tailored to individual abilities. The digital learning media “Voca Poly” was developed to provide education and practical skills training for blind and physically disabled children, particularly in strengthening knowledge and cooking skills to support independent living. This community service program was implemented through three main stages: preparation, implementation, and evaluation. The preparation stage involved needs assessment, media design, and coordination with partner institutions. The implementation stage included interactive learning sessions using the Voca Poly educational game, focusing on food security concepts through English vocabulary from planting to food processing. The evaluation stage assessed participants’ understanding, engagement, and skill improvement. The results showed increased knowledge of cooking concepts and improved practical skills among participants. Moreover, the game-based approach successfully fostered enthusiasm, motivation, and active participation among visually impaired and physically disabled children.

This research investigates thermal material properties and performance characteristics for high-speed vessel components subjected to extreme thermal stress during sustained high-speed operations. High-speed vessels including patrol boats, fast ferries, and naval craft experience elevated thermal loads from high-power density propulsion systems, aerodynamic heating, and sustained operational intensities creating demanding conditions for structural and mechanical components. Through qualitative analysis involving naval architects, materials engineers, high-speed vessel operators, and component manufacturers, this study examines how material thermal properties affect component durability, performance, and safety while identifying optimal material selections for critical applications. Results demonstrate that advanced thermal materials including high-temperature aluminum alloys, titanium alloys, ceramic composites, and thermal barrier coatings can extend component service life by 40-70%, improve thermal management effectiveness by 25-45%, and enhance operational reliability compared to conventional materials. Key implementation challenges include material cost premiums of 150-300%, manufacturing complexity, limited operating experience, qualification testing requirements, and supply chain constraints. Findings reveal that strategic thermal material selection for critical components represents essential enabling technology for high-speed vessel performance, reliability, and operational availability supporting defense, commercial, and emergency response applications requiring sustained high-speed capabilities. This research contributes to marine materials engineering literature by providing evidence-based frameworks for thermal material selection applicable to diverse high-speed vessel applications.

The dynamics of the development of Madrasah Tsanawiyah (MTs) Al Hikmah cannot be separated from the role of the principal’s communication. Analogous to the human body, communication functions as blood that must flow to all parts. This constitutes one of the foundations for quality development. The communication strategy of the principal of MTs Al Hikmah in quality development exhibits distinctive characteristics. The principal is able to establish highly effective communication despite not having an educational background in communication studies. The principal employs prophetic-based communication strategy to enhance institutional quality. This study is qualitative research employing a phenomenological approach. Data were collected through interviews with the principal, foundation caretakers or administrators, teachers, parents or students, and stakeholders. In addition, interview data were systematically dialogued with documents and observations. After data collection, the data were analyzed using prophetic and quality-based approaches. The analytical process involved data condensation and triangulation to ensure the scientific accountability of the findings. The communication implemented operates effectively according to its roles as persuasive, informative, collective-regulative, and integrative, with a linear pattern through channels of direction, instruction, and task assignment aligned with institutional objectives. (b) The direction of the communication strategy is predominantly top-down rather than bottom-up within formal school contexts, guided by ethics of liberation, humanization, and decentralization. Diagonal communication is conducted with several informants, such as vice principals for curriculum, student affairs, and facilities and infrastructure, through various communication platforms. Interpersonal communication is also well established, with a strong emphasis on motivating subordinates from multiple perspectives.

Cultural traditions play a vital role in sustainable tourism by shaping social values, collective identity, and long-term cultural continuity. Caos Dahar, a Javanese practice involving communal food preparation and sharing, serves as an expression of gratitude, spirituality, and social cohesion. Despite its cultural significance, it has been rarely examined from a management perspective, particularly in relation to its integration into sustainable tourism systems. This study analyzes Caos Dahar as a form of cultural tradition management and explores its contribution to sustainable tourism. The research highlights the lack of management-oriented studies combining cultural traditions with sustainability frameworks. A qualitative descriptive approach was adopted, using secondary qualitative data from documented practices and relevant academic literature. Data were analyzed using thematic categorization and interpreted through a multi-theoretical framework, including motivation theory (ERG), social network theory, and cultural philosophy. The findings reveal that Caos Dahar functions as a managed cultural practice, involving implicit management processes such as planning, coordination, and role distribution. The tradition fulfills existential, relational, and growth-oriented needs, sustains social networks, and exhibits adaptability across various cultural dimensions. These characteristics enable Caos Dahar to contribute to the social, economic, and cultural aspects of sustainability within tourism. The study concludes that cultural traditions can be viewed as intangible strategic resources when properly managed. This research expands management and tourism studies by offering a management-oriented interpretation of cultural traditions and moving beyond outcome-based sustainability perspectives toward process-oriented cultural tradition management.

This study aims to 1). Observe and understand the stages of propagating F2 white oyster mushroom seedlings at Wairita Farm. 2). Compare the growth of F2 white oyster mushroom seedlings between corn cobs and a mixture of corn cobs and wood powder. 3). Improve the skills and add to the experience and knowledge of students so that they can apply the knowledge they have gained in the lecture hall. This study used a comparative descriptive experimental approach, which is to compare the growth of F2 white oyster mushroom (Pleurotus ostreatus) seedlings on two different types of seedling media. This research was conducted at the Wairita Farm in Wairbleler Village, Waigete District, Sikka Regency, East Nusa Tenggara Province, over a period of 7 days (Monday to Sunday) during working hours from 08:00 to 16:30 with a break from 11:30 to 14:00. This location was chosen because it is an agricultural business unit engaged in the cultivation of white oyster mushrooms (Pleurotus ostreatus). The study period was 3 months, from September 17 to November 17, 2025. Independent variables and dependent variables. Data were obtained through direct observation of mycelium growth, daily recording during the incubation period, and visual documentation. The results of this study indicate that the success of white oyster mushroom F2 seedling propagation is greatly influenced by the suitability of the medium to the physiological and ecological characteristics of the mushroom. A mixture of corn bran and wood powder proved to be more suitable and is recommended for use in the propagation of F2 white oyster mushroom seeds compared to pure corn bran media.