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The modulation of the structures and electronic properties of transition metal complexes by multi-ligands coordination has been widely exploited to enhance the catalytic efficiency in organic transformations. Here, we present synthesis, characterization, and catalytic performance of Cu(II), Ni(II) and Pd(II) complexes of multidentate ligands- EDTA, 1,10-phenanthroline and N-heterocyclic carbenes (NHCs). The Pd-NHC complex displayed the high catalytic activity for hydrogenation as well as small-molecule activation, up to 450 h⁻¹ of turnover frequency (TOF) and total conversion of styrene to ethylbenzene at room temperature, and is higher efficient than Cu-EDTA (TOF =120 h⁻¹), Ni-Phen (TOF= 85 h⁻¹). The DFT calculation with Pd-NHC system showed that the small HOMO-LUMO gap (3.2 eV) and the short Pd–C bond (1.95 Å) of Pd-NHC, which could facilitate the transfer of the growth species, contributed to the low energy of activation (28 kJ/mol). Mathematical model also discussed its high catalytic activity (TOF/Ea = 16.07 h⁻¹·kJ⁻¹·mol) due to the strong σ-donor ligands and proper geometry. These findings underscore the influence of ligand architecture to secure transition states and modulate electron density in designing efficient sustainable catalysis that is industrially relevant.

Pediculosis capitis is an infestation of head lice Pediculus humanus capitis that live on the scalp and suck blood as a source of nutrition. Transmission occurs through direct contact or sharing personal items, especially in environments with poor sanitation. Risk factors include age, population density, personal hygiene, and socioeconomic status. Symptoms include severe itching due to a reaction to the saliva of the lice, which can cause excoriation, irritation, and secondary infections such as pyoderma. In this report, a 17-year-old girl complained of scabs, pain, heat, and itching on the head and neck. Lice and lice eggs were found, as well as ecthyma lesions in the form of pustules, yellow crusts, and excoriations in the occipital area and back of the neck. The therapy given was a combination of drug and non-drug treatment. The evaluation results showed improvement in symptoms. This case emphasizes the importance of early diagnosis and comprehensive management to prevent reinfection.

Tuberculosis (TB) is currently a public health problem in the world, especially in Indonesia. Pulmonary TB is ranked 2nd as the main cause of death from infectious diseases after Human Immuno deficiency Virus (HIV). Pulmonary Tuberculosis is easily spread through the air when people who are sick with Pulmonary Tuberculosis release bacteria through the coughing mechanism. The spread of these bacteria is through sputum splashes or droplet nuclei released by TB sufferers through coughing, sneezing or talking face to face. The increase in TB cases is related to the degree of health in the community. The biggest factors that affect the degree of health are environmental factors and community behavior itself which can be detrimental to health. Risk factors for Tuberculosis transmission are environmental factors and behavioral factors, environmental factors include ventilation, housing density, temperature, lighting and humidity. While behavioral factors include smoking habits, spitting or throwing phlegm anywhere, coughing or sneezing without covering the mouth and the habit of not opening windows and not implementing clean and healthy living behavior (PHBS). This research method is a quantitative study with statistical tests with a cross-sectional design. This study was conducted at SMP 4 Ulee Rubek, North Aceh in November 2024. The research sample consisted of 15 children, Data collection techniques using questionnaires. Data analysis used descriptive statistical tests to test adolescents' knowledge about how to prevent TB. In addition to effective coughing, there are several ways to control pulmonary tuberculosis, namely by cultivating a clean and healthy life and cultivating ethical coughing behavior.

This study aims to explore in depth the impact of population density on the quality of life of residents in densely populated areas of Serang City, Banten Province. The background of this research is based on the phenomenon of increasing population numbers due to ongoing urbanization and migration, which directly affects the social, economic, and environmental pressures in urban areas. This research employs a qualitative approach using a descriptive method. Data were collected through in-depth interviews with residents, community leaders, and local government officials, as well as field observations in areas with high population density. Secondary data were obtained from official documents such as reports from the Central Bureau of Statistics (BPS) and regional development planning documents. The results reveal that population density negatively affects access to basic services such as clean water, sanitation, education, and healthcare. Furthermore, it creates pressure on the living environment and reduces the comfort of residential spaces. Communities in high-density areas tend to face challenges in fulfilling basic needs adequately, which in turn impacts their overall well-being. This study highlights the importance of participatory and data-based urban planning, along with strong cross-sectoral coordination in providing social and environmental infrastructure. It is recommended that local governments develop adaptive policies in response to demographic dynamics to create livable, inclusive, and sustainable urban spaces. The findings of this research are expected to serve as a reference for future policy-making regarding the development of densely populated areas.

Poverty is a problem that continues to be faced by both developed and developing countries. In developing countries with high population density, this problem is very difficult to overcome, because the increase in population not only impacts the economy, but also political instability. This study aims to determine the effect of unemployment and population on poverty in Aceh Province. This data was obtained from the BPS publication for the period 2020-2023. This study uses panel data regression analysis. Partially, unemployment (X1) does not have a significant effect on poverty (Y) while the HDI figure (X2) has a significant effect on poverty (Y). Likewise, together, unemployment and population have a significant effect on poverty.

Background: Atherosclerosis is a chronic inflammatory cardiovascular disorder strongly associated with elevated low-density lipoprotein cholesterol (LDL-C) levels and serves as a major predictor of adverse cardiovascular events. This study aimed to investigate the relationship between inflammatory markers (adiponectin and TNF-α) and key biochemical parameters in atherosclerosis patients. Methods:  A case-control study was conducted on 60 participants (aged 40–65 years) recruited from private cardiac clinics in Fallujah, Iraq, between October and December 2024. Subjects were stratified into two groups: 30 atherosclerosis patients (diagnosed by specialists) and 30 age-matched healthy controls. Blood samples were collected, centrifuged, and analyzed for CRP, TNF-α, adiponectin, PAI-1, MDA, GSH, sodium (Na), and magnesium (Mg) levels using standardized biochemical assays. Statistical analysis was performed using SPSS, with significance set at *p* ≤ 0.001. Results: Atherosclerosis patients exhibited significantly elevated serum levels of CRP (2.21 ± 14.46 vs. 1.07 ± 7.76 mg/dL), TNF-α (15.14 ± 120.86 vs. 4.27 ± 65.16 pg/mL), PAI-1 (6.52 ± 0.82 vs. 2.02 ± 0.42 ng/dL), MDA (590.26 ± 29.64 vs. 155.52 ± 25.19 ng/mL), and Na (140.16 ± 1.18 vs. 125.46 ± 6.17 nmol/L) compared to controls (*p* ≤ 0.001). Conversely, adiponectin (0.18 ± 1.81 vs. 0.67 ± 4.18 mg/dL), GSH (22.79 ± 1.37 vs. 40.81 ± 3.05 μg/mL), and Mg (1.46 ± 0.175 vs. 1.84 ± 0.67 nmol/L) were markedly reduced in patients. ROC curve analysis demonstrated perfect diagnostic accuracy (AUC = 1.0) for CRP, TNF-α, and adiponectin in distinguishing patients from controls. Conclusion: The study highlights pronounced dysregulation of inflammatory, oxidative, and metabolic pathways in atherosclerosis, with CRP, TNF-α, and adiponectin serving as robust discriminative biomarkers. These findings underscore the potential of targeting these pathways for therapeutic intervention and early diagnosis.

Telah banyak dibahas pada penelitian terdahulu mengenai bahan tambah atau subtitusi pada campuran aspal. Penelitian kali ini mencoba untuk substitusi maupun menambahkan plastik jenis low linear density poly ethylene (LLDPE) sebagai bahan tambah untuk campuran Asphalt Course – Binder Course (AC-BC). Plastik ditambahkan pada kadar plastik optimum terhadap nilai karakteristik marshall. Penelitian dilakukan di Laboratorium PT. Kadi Indonesia Manufaktur dengan 3 pengujian marshall. Pengujian marshall I adalah untuk mencari kadar aspal optimum tanpa tambahan plastik, diperoleh KAO untuk AC-BC sebesar 5,2%. Pengujian marshall II dilakukan untuk berat aspal optimum 100 % + % berat limbah plastik, diperoleh kadar optimum plastik sebagai bahan tambah sebesar 3%. Sementara untuk pengujian marshall III, dilakukan untuk bahan plastik sebagai subtitusi aspal yakni % berat aspal optimum + % berat limbah plastik = 100 % berat aspal optimum. Pada pengujian marshall III diperoleh kadar plastik optimum sebagai subtitusi adalah 2%. Nilai terbaik diperoleh di pengujian Marshall II (100% KAO + 3% LLDPE sebagai bahan tambah. Campuran 100% KAO + 3% LLDPE sebagai bahan tambah ini menghasilkan nilai stabilitas 1482 kg/cm2; flow 3,47 mm; VIM 4,93%; VFA 69,5% dan MQ 428 kg/mm. Seluruh nilai tersebut telah memenuhi persayaratan AC-BC yang tertuang dalam Spesifikasi Umum 2018 Revisi 2.

Wireless communication, in its infrastructure nature, faces many challenges such as fading, data coverage, and interference issues. Therefore, High-Fidelity or (Li-Fi) is utilized due to its ability to naturally provide high-density wireless data coverage in closure’s particularly helpful for application(s) in some areas while the radio interference conditions are concern. This article illustrates an advanced Li-Fi approach performing high-speed data transmission between two Personal Computers (PCs) utilizing the Arduino Nano-based technique. In the experimental phase, data is mainly used to be transmitted over red laser diode (630 nm) through (30 cm) in distance, a distance of 30 cm, achieving a high peak speed reach to about (512Bps). The proposed approach performance is computed by evaluating the most important and related metrics like Signal-to-Noise Ratio (SNR), Bit-Error-Rate (BER), and influence of throughput on input data over various light circumstance. The proposed approach mainly utilizes a keypad as a user input and two related detection models for both a solar cell and a photodetector in order to make a powerful comparison in terms of performance. the results showed that when the photodetector applies a higher-detection efficiency (via BER enhancement which reaches to 20% over solar-cell), the solar-cell clarify outstanding power and cost-activity. The mentioned findings are propped by elaborated statistical-analyses and MATLAB simulation to design, simulate and visualize the validate functionalities of the robustness and scalability properties of the proposed Li-Fi approach.

Pollution of hydrocarbons in marine waters was recorded up to 2003 around 6.44 million tons and dominant due to the results of fishery port activities to cause the balance of coastal ecosystems disrupted. The drained state funds for its handling can reach 1000 USD per ton up to 33,000 USD in each region. Various efforts have been made is still not effective enough. The purpose of this program is to get the appropriate technology design in overcoming the problem of hydrocarbon pollution in the fishing port. The method used by literature and field study and a series of testing tools. The solution is called MABOA (Magic Briquette Oil Absorbent) is a technology that is applied aplikatif appropriate to overcome the problem of oil pollution in the port area. This tool is a net with the main components of magic briquettes, auto-spray containing bacteria degradation and microcontroller which as a whole has the ability to absorb and degrade hydrocarbon compounds. The circular MABOA net will prevent the expansion of the oil spill zone by the absorption process by magic briquettes. Pseudomonas puttidae and Bacillus sp. In auto-spray will be automatically sprayed over the surface of the spill zone to perform the decomposition of hydrocarbon compounds. Bacteria will grow and utilize hydrocarbons that have been absorbed and accumulated in the body of magic briquettes so that the cleaning process becomes more effective and faster. Results from a series of trials showed that MABOA with 3meter diameter dimension able to absorb hydrocarbon compound as much as 35.000mL with 3-5min time absorption rate and with density of colonies of bacteria 3,5x109 able to degrade 32% of existing hydrocarbon compound with efficiency time 3-7 days. The data is an accumulation of those component test result data.

Tuberculosis is one of the dangerous infectious diseases and is still a public health problem in Indonesia. Nisam District is one of the sub-districts in North Aceh with the highest TB cases in 2024, This study aims to analyze factors related to the incidence of tuberculosis (TB) in Nisam District, North Aceh Regency. The research design used was cross-sectional. The population in this study is all people living in Nisam District, and the sampling in this study used purposive sampling as many as 30 respondents. The results of the study found a relationship between sex (p: 0.002, OR: 55.00, CI: 4.13-732.71), knowledge (p: 0.005, OR: 35.00, CI: 2.98-411.47), behavior (p: 0.023, OR: 15.00, CI: 1.45-155.31), occupancy density (p: 0.002, OR: 115.00, CI: 6.11-2165.95) and floor type (p: 0.013, OR: 14.00, CI: 1.74-112.55) against the incidence of TB. So it is suggested to the Health Office through Promkes that it is expected to increase education on TB prevention based on gender, knowledge, and environmental conditions, while Puskesmas, especially surveillance personnel and TB programs, need to optimize active screening, patient coaching, and cadre empowerment, and the community is encouraged to create healthy housing and increase awareness of TB.  

In this study, the population growth rate of Pematang Siantar City during the period 2022–2025 is discussed through an improper integral approach. Population growth patterns must be analyzed and predicted in the long term. Linear, geometric, and exponential growth models are used to analyze data taken from the Statistics Center. The calculation results show that the population growth rate changes every year, with an average change of 0.10% per year. The prediction for 2025–2026 shows a growth of 0.59%, indicating an increase in population. However, through an improper integral approach, it is found that a population that experiences a decrease in growth rate over time will reach a limited cumulative total population value, even if the population continues to increase. These results indicate that a long-term downward trend can lead to population shrinkage, uncontrolled growth can lead to population density. As a result, this study is expected to provide a scientific basis for population policies and sustainable development planning in Pematang Siantar City.

Garbage become problem complex in life urban areas , especially in Medan as Mother city North Sumatra Province . Research This analyze impact management Trash in Place Disposal End (TPA) Terjun , Medan Marelan District , regarding environment surrounding area . Method study use approach qualitative with technique observation , interviews , and studies documentation . Research results show that TPA Terjun has​ area 14 hectares Not yet managed optimally , with the dominant open dumping system . The impacts that arise covering groundwater pollution , pollution​ air , disturbance aesthetics , as well as improvement vector disease . Findings This reinforced by BPS data (2018) which shows density Medan 's population reached 8,342 people /km², correlated with high volume of waste . Research This recommend implementation system management rubbish integrated based on principle health environment and economy circular For reduce impact negative .

There are several developments in the practice of pawn gates, on the condition that pawn gates can also be done for the educational needs of nephews or business capital. Developments in the use of transaction tools can now use money. Pagang gadai is known to have no redemption period, and the Wali Nagari Parik Panjang does not want to sign the pawn letter because it is against positive law in Indonesia. There is no legal protection for the implementation of the practice of pawning in the Minangkabau customary law community. This is because land pawning is carried out without registration. The settlement of the problem of pawn disputes in Nagari Parik Panjang, Matur District, Agam Regency using the principle of bajanjang naiak, batanggo turun means that it is resolved from the lowest level, namely deliberation and consensus, then the Nagari Customary Density, to the highest level, namely the court level.

The 2013-2031 Karanganyar Regency RTRW directs Gondangrejo District as an area designated for medium to large-scale industries, although on the other hand there are rural settlement areas in existing conditions. The industry in Gondangrejo District is growing and developing which is agglomerated along the Solo-Purwodadi Road. The development of this agglomeration has an impact on the increasing density of rural settlements around the industry. Therefore, this study aims to measure changes in the density of residential buildings affected by the development of industrial agglomeration in Gondangrejo District, Karanganyar Regency between 2004-2024. The research method used is quantitative with regional relative comparison analysis techniques, average nearset neighbors, and kernel density analysis. The results of the study show that industrial agglomeration in Gondangrejo District has experienced low-level development. The density of residential buildings has also increased to 25 units/ha. The growth of residential buildings, boarding houses, shops/stalls, and parking facilities around the industry is a direct impact of the development of industrial agglomeration on the density of residential buildings.

This study aims to analyze and visualize the distribution of COVID-19 cases in Indonesia throughout 2020 with a spatial-based quantitative approach. The data used was obtained from the official report of the Ministry of Health of the Republic of Indonesia as of December 30, 2020, including the number of confirmed cases, recovered, and died. The analysis was carried out by integrating clustering methods and Geographic Information Systems (GIS) using Quantum GIS (QGIS) software. The visualization results show significant spatial variations between provinces, where provinces with high population density such as DKI Jakarta, West Java, East Java, and Central Java are recorded as areas with the highest caseload. In addition, areas with limited health facilities also show a high potential risk of transmission and death. Cluster patterns of positive and cured cases generally show similarities, while mortality rates show spatial inequalities that are important to look at. These findings emphasize the importance of spatial data integration in area-based policy planning for pandemic control. Spatial visualization not only facilitates understanding of distribution patterns, but also supports more effective and targeted decision-making.

Bali Province has a high population density, which has the potential to affect the distribution of infectious diseases such as diarrhea. However, mapping the distribution of diarrhea cases based on population density is still limited and does not meet good cartographic principles. Therefore, this study aims to present data on the distribution of diarrhea cases based on population density in Bali Province during the 2020-2022 period. This study used an analytic observational method with a cross-sectional design. The data used were secondary data from the Bali Province Health Profile and the Central Statistics Agency (BPS) for 2020-2022. Data analysis was carried out using geographic mapping with Geographic Information Systems (GIS) and statistical tests in the form of multiple linear regression and Spearman correlation. The results showed an increase in the strength of the relationship between population density and the number of diarrhea cases, as indicated by the rho value which increased from 0.1833 in 2020 to 0.6000 in 2022. However, this relationship was not statistically significant (p-value > 0.05), indicating that population density is not the only factor contributing to the increase in diarrhea cases. Other factors such as sanitation, access to clean water, and public awareness in maintaining hygiene also play a role in the spread of this disease. Although there is a trend that an increase in population density in Bali goes hand in hand with an increase in diarrhea cases, this relationship is not statistically strong enough. Therefore, a multidisciplinary approach is needed to address diarrhea cases, including improved sanitation facilities, public health education, as well as strengthening the spatial data-based disease monitoring system.

Pneumonia remains one of the leading causes of mortality among children under five years old worldwide. Population density is presumed to be one of the factors influencing pneumonia incidence, particularly in regions with high population growth and mobility, such as Bali Province. This study aimed to analyze the relationship between population density and pneumonia incidence among under-five children in Bali Province during the 2021–2023 period. This research was a descriptive quantitative study with a correlational design. Data on population density and under-five pneumonia cases were obtained from reports by the Bali Provincial Health Office and the Central Bureau of Statistics (BPS). Spatial visualization was performed using Epi Map version 7.2.5.0, and correlation analysis was conducted using R Studio. Descriptive analysis showed an increase in both population density and the number of under-five pneumonia cases in Bali Province during 2021–2023. Population density rose from 11,641 people/km² to 12,096 people/km², while pneumonia cases increased from 2,677 to 5,743. However, Spearman correlation analysis indicated no statistically significant relationship between population density and pneumonia incidence, with rho values of 0.5667 and p-values of 0.1206 for 2021 and 2022, and a rho of 0.2333 with a p-value of 0.5517 in 2023 (p > 0.05). No significant relationship was found between population density and pneumonia incidence among children under five in Bali Province.

Mining with an open pit system is carried out by excavating and removing the overburden to obtain coal. However, before mining, it is important to obtain geotechnical data information. As well as the lithology of the rocks below the surface, it is necessary to carry out geotechnical drilling (full coring). This study can determine the value of slope geometry safety factors and plan safe slope geometry, both individual slopes and overall slopes. Therefore, this was done to determine the influence of GSI geotechnical parameters on the value of static and dynamic slope safety factors. The method used in determining the safety factor and the probability of an avalanche is the Morgenstern-Price boundary equilibrium method with the Generalized Hoek-Brown collapse criterion in static and dynamic slope conditions. The input parameters used in the analysis were natural density, compressive strength value (UCS), geological srength index (GSI), disturbance factor (D), intact rock constant (mi), as well as seismic load factor, and groundwater level. The optimal geometry on the Highwall slope is the configuration of the Highwall slope with a height of 74 m and an angle of 23°, supported by a single slope of 5-10 meters, a berm of 7 meters with an angle of 40°. Seam D Claystone lithology with GSI 50, Siltstone with GSI 70, Sandstone with GSI 70, and Seam E Claystone lithology with GSI 50, Siltstone with GSI 40, Sandstone with GSI 75.Can be applied within a safe limit where FK Static 1.7 PK Static 0% and FK Dynamic 1.4 PK Dynamic 6%.

This study analyzes the psychological impact of the armed conflict in Yemen by comparing urban and rural populations through a systematic review and meta-analysis of 47 published studies (N=28,463) from 2015 to 2024. The analysis reveals a significantly higher prevalence of PTSD in the urban population (42.8%, 95% CI [39.2-46.4]) compared to the rural population (31.5%, 95% CI [28.1-34.9], p<.001). In addition, multilevel regression analysis indicates a strong correlation between the level of exposure to conflict and the severity of depressive symptoms (r=.68, p<.001) and anxiety (r=.72, p<.001) in both populations. Additionally, when examining specific urban risk factors, calculations indicate that population density (OR=1.86, 95% CI [1.54-2.18]) and loss of infrastructure (OR=1.73, 95% CI [1.45-2.01]) are significant. Moreover, geographic isolation (OR=1.92, 95% CI [1.67-2.17]) and limited access to mental health services (OR=2.14, 95% CI [1.89-2.39]) also demonstrate prominent risk factors, thereby emphasizing the predominance of specific urban risk factors in rural areas. These findings contrast with the research conducted by Le & Nguyen (2023) and Carpiniello (2023), which focused solely on general impacts; thus, the novelty of this research lies in its success in identifying distinct patterns of psychological trauma based on geographic characteristics. In addition, this study successfully reveals the differing mediating mechanisms of social support between urban (β=-.42, p<.001) and rural (β=-.28, p<.01) populations in mitigating the impacts of the Yemeni war trauma.

Green open space is one of the needs that cannot be ignored and is one of the elements of the city. The area of green open space in South Tangerang City has decreased because development continues to grow in each sub-district in South Tangerang City and the increase in population. Reduction of green open space caused by population density will automatically require building expansion. The purpose of this research is to find out and analyze the application of dynamic governance in the development of green open space in South Tangerang City. The method used in this research is descriptive research with a qualitative approach. This research uses theory with 3 indicators, think ahead, think again, and think across. Data collection techniques with observation, interviews, and documentation. Data analysis techniques with data reduction, data presentation, and conclusion drawing. The results showed that in the think ahead indicator, it can be said that the South Tangerang City Environmental Service has applied forward thinking because it is able to identify environmental developments, understand their implications and identify strategies needed to take advantage of new opportunities and prevent potential threats. In the thinking again indicator, it can be said that the Environment Agency of South Tangerang City has not used this thinking to achieve the desired solution in increasing the quantity of green open space. Where the percentage of green open space quantity in South Tangerang City from year to year is very slow to increase. In the thinking across indicator, it can be said that the Environment Agency of South Tangerang City has not done “learning from other cities” such as analyzing and then innovating practices that have been successfully implemented in a city. However, the Environment Agency of South Tangerang City is still trying to optimize the development of green open space in South Tangerang City.