bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of magnesium ions synergistic with mineralized collagen on osteogenesis/angiogenesis properties by modulating macrophage polarization in vitro and in vivo
Authors: Liu Chang , Ma Nan , Sun Changan , Shen Xuecheng , Li Jinwei , Wang Chengyue 
Published: March 2024

Abstract
In bone tissue engineering, the bone immunomodulatory properties of biomaterials are critical for bone regeneration, which is a synergistic process involving physiological activities like immune response, osteogenesis, and angiogenesis. The effect of the macrophage immune microenvironment on the osteogenesis and angiogenesis of various material extracts was examined in this experiment using Mg2+ and Nano-hydroxyapatite/collagen (nHAC) in both a single application and a combined form. This study in vitro revealed that the two compounds combined significantly inhibited the NF-κB signaling pathway and reduced the release of inflammatory factors from macrophages when compared with the extraction phase alone. Additionally, by contributing to the polarization of macrophages towards the M2 type, the combined effects of the two materials can significantly improve osteogenesis/angiogenesis. The results of in vivo experiments confirmed that Mg2+/nHAC significantly promoted bone regeneration and angiogenesis. This study offers a promising method for enhancing bone graft material osseointegration.
Flow patterns at river bends and its response to surrounding infrastructures
Authors: Pinasti N W , Wijayanti E , Nurfaida W , Sulaiman M , Kurniawan A 
Published: March 2024

Abstract
On January 6, 2023, high-intensity precipitation occurred in the Babon River watershed, causing the river overflow and flood in several areas. Severe impact in the surrounding area was observed, such as in the Dinar Indah Housing Complex. Hydrodynamic complexity around a river bend points out the importance of understanding the flow patterns at a river bend. Therefore, this study aimed to describe the flow pattern of the river bend and analyze its response to the surrounding infrastructure using the HEC-RAS 6.3 model. Furthermore, improvement to structural mitigation was also designed. Field observations were also conducted to gather field data on the flood impact. The model results indicate that the highest water level within the river bend is 1.9 m, and the highest velocity is 5.85 m/s, which is on the outer bend. A dyke was then planned to be about 3.75 meters high, accompanied by a retaining wall to protect the river bank using the interlocking permeable revetment (IPR). Dyke and retaining walls provide stability against shear, overturning, and collapse.
Double sill stilling basin to enhance energy dissipation for a strong hydraulic jump with a high Froude number
Authors: Erryanto S , Dermawan V 
Published: March 2024

Abstract
Roller Compacted Concrete (RCC) is a new and viable construction material for concrete gravity dams. It is gaining popularity due to its low cost and fast deployment. The design of a stilling basin, part of a dam that controls the hydraulic jump and dissipates energy, is crucial. One of the important considerations is the Froude number at the spillway toe (F1), which determines the type of hydraulic jump that will occur. An energy dissipator is also required to prevent scour caused by the change in flow conditions from supercritical to subcritical. Double sills installed downstream of the steep chute way channel can be used as an energy dissipator. This study uses hydraulic modeling to evaluate the flow energy reduction and subcritical flow conditions in a stilling basin with double sills. The investigation is expected to provide better information on hydraulic jump control.
Effect of equilibrium and non-equilibrium sediment transport flows on the shear velocity in an open channel.
Authors: Maini M , Kironoto B A , Rahardjo A P , Istiarto  
Published: March 2024

Abstract
Equilibrium and non-equilibrium sediment transport flow in natural rivers and artificial channels can result in degradation or aggradation of the river bed, which will affect many hydraulic parameters, one of which is shear velocity. This study evaluates the influence of sediment transport on shear velocity in open channels. In this study, laboratory experiments were carried out using a sediment-recirculating flume, and measurements of the velocity and Reynolds shear stress distributions were measured using a Sontek-acoustic Doppler velocimeter (ADV). This experimental study measured 120 velocity distributions, and Reynolds stress profiles, consisting of 12 different sets of measurements involving flow with sediment transport and movable sand bed. The results showed an average shear velocity, u*, difference between sediment feeding and without sediment feeding by 9.41%. For the integration constant Br value, the average difference between sediment feeding and without sediment feeding was 5.58%.
Prediction of sediment transport due to detached breakwater
Authors: Saputra A , Sumiadi  
Published: March 2024

Abstract
This research intends to predict the pattern and accumulation of sediment transport before and after being built the detached breakwater. This research was conducted on Matras, Penyak, and Pasir Padi shorelines which are located in Bangka Island-Indonesia. Based on the previous research, few empirical methods are used for analyzing the shore response due to the breakwater for fulfilling the erosion and sedimentation in the shoreline. However, there has not been more research that analyzed the effect of breakwater itself on the pattern and accumulation of sediment transport (the formation of tombolo and salient) that happens in the shorelines based on the parameters of structure, physical condition, and characteristics of sediment. The research methodology consists of collecting data, measurement on the field, and Citra satellite observation without and with breakwater. The result is hoped can support the modelling of the distance among breakwaters and the effective formulation of the distance among breakwaters.
Mapping groundwater potential zone using groundwater potentiality index in Sulamu, Central Fatuleu and West Fatuleu, Kupang, East Nusa Tenggara
Authors: Adelin A N , Hartono H I R , Putra D P E , Pranantya P A 
Published: March 2024

Abstract
Water scarcity often occurs during the dry season in Kupang Regency, which is a semi-arid area. The drought limits surface water availability during the dry season, thus making groundwater one of the reliable solutions for fulfilling the need for water from springs and wells. Therefore, mapping the potential of groundwater in the research area becomes the aim of this study, which has never been conducted before. The method used in this research is the Groundwater Potentiality Index, which uses five parameters to identify groundwater potential areas: fracture, lithology, topography, drainage, and rainfall. Field observation and secondary data collection were conducted to provide those parameters. The results are groundwater potential index classified into five groundwater potential zones, resulting in very low (17.07% and 20.39% of total area), low (51.16% and 48.94% of total area), moderate (26.9% and 27.05% of total area), high (4.09% and 3.1% of total area), and very high (0.77% and 0.53% of total area). Zones of very high are found along major fault areas. Areas with high groundwater potential zones indicated favorable conditions for wells positioning at groundwater exploration. These results can be a basis for action related to groundwater resource development in the research area.
Groundwater investigation in the Batang Integrated Industrial Park, Central Java, Indonesia
Authors: Widyatama F X G S , Wilopo W , Broto S A 
Published: March 2024

Abstract
Batang Integrated Industrial Park (BIIP), Central Java, Indonesia, needs the support of water sources, one of which is groundwater. In addition, industrial waste also can contaminate the groundwater. Therefore, assessing groundwater potential and quality is vital for an environmental baseline to manage sustainable groundwater resources. This research aims to identify the subsurface geology, especially the aquifer system and physicochemicals of groundwater, unprecedented in BIIP. The aquifer system determined the research method through geological surface mapping and geoelectrical surveys. Physicochemical properties, including temperature, pH, total dissolved solids (TDS), and electrical conductivity (EC), were directly measured in wells and springs in the industrial areas. The result shows that the BIIP is dominated by sand, silt, and clay, with sand as the primary aquifer located in-depth 1.35 to 47 meters, concentrated mainly in the western region and towards the east, decreasing as an unconfined aquifer. Groundwater flows from the south toward the Java Sea in the north. Groundwater has a temperature of around 27.3–30.9°C, pH 5.26–7.47, TDS 49–568 mg/L, and EC 100 – 613 μs/cm. It indicates that the quality and quantity of groundwater in the BIIP are quite suitable for use as raw water.
Performance assessment of reservoir storage capacity
Authors: Trimartinni A D , Limantara L M 
Published: March 2024

Abstract
This research intends to assess the performance of reservoir capacity. The performance of reservoir capacity indicates the reliability in guaranteeing the water supply need. However, this assessment of reservoir storage capacity is based on the variability coefficient of hydrology conditions. The methodology consists of data collecting that includes the historical discharge that is used for analyzing the variation coefficient of yearly discharge (Cv), water need based on the yearly discharge ratio (D), and storage capacity over the year (Ka). The performance of reservoir storage capacity uses the regression equation of Mc Mahon and Adeloye. The result shows that Indonesia’s reservoir storage capacity is well performing only for fulfilling the water need demand of about 0.0001 to 0.15 of yearly average discharge. However, the negative NSE value is obtained for water demand about 0.2 until 0.55 of yearly average discharge. It shows that the storage capacity observed is under-estimate if it is for supplying the water need demand with a ratio of more than 0.2 of yearly average discharge. This research result is hoped to predict the feasibility of reservoir storage capacity. In addition, it can be used as a reference in assessing the performance of multipurpose reservoir storage capacity as the base of accurate decision taking in planning reservoir storage capacity and reservoir utilization. Then, it is the base of decision taking in designing the dimensions of dam complementary buildings.
Assessing the impact of climate change on surface runoff of the Ubolratana Reservoir, Thailand
Authors: Suryani N S , Pawattana C , Lohpaisankrit W , Muangthong S 
Published: March 2024

Abstract
Assessing surface runoff in river basins is paramount for effectively managing water resources. Climate change significantly impacts the availability of water within these basins. The Ubolratana reservoir is vital for sustainable water supply, aquaculture, agricultural practices, and domestic needs. This research aims to evaluate the runoff availability of the reservoir by using the Hydrologic Engineering Center’s Hydrologic Modeling System (HEC-HMS) under distinct climate change scenarios. The HEC-HMS model was calibrated based on observed rainfall and runoff data. To project future runoff dynamics, calibrated model parameters were coupled with the bias-corrected rainfall data of Can-ESM5, CESM2, and GFDL-ESM4 models for two Shared Socioeconomic Pathways (SSPs) climate scenarios (SSP 245 and SSP 585). The results show upward trends in both projected rainfall and runoff within the drainage area of the Ubolratana reservoir between 2022 and 2061. In summary, the findings of this research may be useful for regional water resources management and strategic planning endeavors.
Evaluation of irrigation channels in the dry season at Dadahup swamp irrigation area to strengthen food security
Authors: Wahyuni A , Sujono J , Istiarto  
Published: March 2024

Abstract
Dadahup swamp irrigation area is included in the food estate project location. The government has rehabilitated irrigation networks to support the program in 2020. A good agricultural system should be supported by water availability to fulfill irrigation water needs. The obstacle often faced in agriculture is usually the water deficit that occurs in the dry season. Corn is usually cultivated in the dry season to reduce water irrigation demand and cannot be inundated with water for long. This study aims to determine the water availability in the irrigation channels to supply water needs for corn. The Storm Water Management Model is used to perform hydraulic analysis in irrigation channels. The results showed that the water levels ranged from +0.04 m to 0.49 m in irrigation channels, while the ground elevations ranged from +1.12 m to 1.74 m. Due to water levels in the irrigation channels below the ground elevation, the Blok A5 Kanan can be proposed for corn cultivation in the dry season. This study’s outcome will be increased crop productivity, achieving sustainable agriculture.
Dam water conservation equation index using AHP and cluster analysis methods: a study on selected dams in Java
Authors: Hermawan D , Limantara L M 
Published: March 2024

Abstract
This research, which was conducted on 12 selected existing dams, focuses on the application of the Analytical Hierarchy Process method for determining the “Dam Conservation Equation Index” based on three main issues for water conservation: namely, dam contribution to reservoir water quality (DO, pH, TDS), groundwater (DO, TDS, pH) and local climate (min temperature, max temperature, precipitation). It is a new approach to indexing existing dams’ effect on water conservation. The result from the AHP method shows correlations between dams and water condition, with groundwater being affected, shown by a 70% effect on the priority scale, followed by local climate and reservoir water quality with approximately 20% and 10%, respectively. There is also the effect of ‘unknown parameters’ affected by dams, albeit not significantly. Meanwhile, the results from cluster analysis are: there are three clusters of dams in the research areas: cluster 1 (Cipancuh and Delingan dam), cluster 2 (Cacaban, Wadas Lintang, Sermo, Pondok, Lahor, Sampean Baru and Wonorejo dam) and cluster 3 (Darma, Malahayu). Cluster 1 and 3 are dams with the lowest water quality in the research area.
Storm water management model to evaluate urban inundation in Lowokwaru and Blimbing sub-catchments in the city of Malang
Authors: Asmaranto R , Fidari J S , Sari R R , Pramesti M Y 
Published: March 2024

Abstract
In the city of Malang, which is a highland area, there are still floods, including Blimbing and Lowokwaru sub-districts. One of the causal factors is the change of undeveloped areas becoming relatively large built-up areas in the Upper Brantas sub-watershed, from initially 20.5% in 2000 to 69.6% 20 years later. This change also impacts the transformation of irrigation canals that once irrigated rice fields, causing them to shift their function into drainage channels that carry runoff water toward natural channels (natural drainage). Consequently, the existing canal conditions cannot accommodate the runoff water. The research employed an approach that involved analyzing floodwater management models using the Storm Water Management Model (SWMM 5.1) and surveying existing canal data. The analysis results revealed that, within the studied areas of Blimbing Village and the Blimbing Catchment Area, 10 out of the existing 170 drainage channels were incapable of handling the discharge associated with rainfall intensities designed for return periods of 5 years (112.48 mm/day) and ten years (117.09 mm/day). In the Lowokwaru Catchment Area, it was evident that 18 out of the 216 existing canals experienced overflow events with designed flood discharge for 5-year and 10-year periods.
Engineering characteristics and classification based on JSCE in portal zones of Tunnel A, Yogyakarta - Bawen toll road, Magelang District, Central Java Province
Authors: Tamado D , Indrawan I G B , Aldiamar F 
Published: March 2024

Abstract
The Yogyakarta - Bawen Twin Tunnels emerge as an environmentally conscious solution for Toll Road Phase 5 (STA 6+300 to STA 27+640), addressing the ecological impact of open-cut excavation, which demands a staggering 1,209,056 m3. Open-cut excavation not only incurs substantial operational costs, encompassing disposal and treatment, but also poses threats like groundwater loss and erosion-induced landslides. The twin tunnels mitigate these concerns by limiting excavation volume to a mere 1/8, averting substantial costs and ecological damage. Challenges persist, particularly in the portal zones of Tunnel A, characterized by a shallow overburden and exposure to weathering. The Japan Society of Civil Engineers (JSCE) Method proves instrumental in assessing ground quality in these zones, considering factors such as competence, unit weight, unconfined compressive strength, depth of cover, elastic wave velocity, boring core condition, and geological characteristics. The analysis reveals a ground quality classification of E for the portal zone in Tunnel A, emphasizing the necessity for a meticulous design approach that incorporates analytical methodologies alongside empirical considerations. Notably, the unconfined compressive strength ranges from 32.89 to 472.88 kPa, and the elastic wave velocity spans 402 to 2000 meters/sec, reinforcing the imperative for a comprehensive and analytically informed design for excavation and support systems.
The impact of climate change on student psychological distress
Authors: Qinanthi Qinanthi , Yuliyanti Mela , Putri Nadya , Gayuh Putri Aji Titis , Puji Astuti Septin , Hastuti Rina 
Published: March 2024

Abstract
Indonesia is now experiencing abnormal severe hot weather, where El-Nino causes the increasing temperature to be above the average. Although El Nino is a common phenomenon that occurs naturally, climate change factors exacerbate the adverse impact of El Nino on human life. Many studies have presented empirical evidence on how climate change significantly affects individuals’ mental health, distress, burnout, and other related psychological wellbeing. However, little attention has been paid to the relationship between students’ psychological wellbeing and climate change, especially in Indonesia. This research aims to understand how environmental aspects can harm students’ psychological wellbeing, by measuring the correlation between climate change, mental health, and psychological distress. The variables that will be observed in this research are climate change exposure, pro-environmental behaviour, psychological distress, and positive mental health. Using the online survey method, the respondents of this research will be undergraduate students from many different universities in Indonesia. This research is expected to present the negative impact of climate change on positive mental health and psychological distress, which is moderated by environmental awareness.
Comparative analysis of early growth phase performance in F3 crossbred Indonesian chickens
Authors: Firdaus C R , Saraswati Y V , Maharani D , Erwanto Y , Guntoro B , Wibowo M H , Sasongko H 
Published: March 2024

Abstract
Body mass and ratio of feed conversion (FCR) are crucial factors for assessing production potential in local chickens. This study utilized a total of 116 F3 crossbred chickens resulting from the mating of Indonesian local chicken breeds, including Kampung Unggul Balitbangtan, Murung Panggang, Merawang Bangka, and Merawang Sembawa. The chickens were divided into six crossbred groups: BS1 (n = 19), BS2 (n = 19), BS3 (n = 20), BS4 (n = 19), BS5 (n = 20), and BS6 (n = 19), all managed under uniform conditions. Measurements of body mass and feed consumption during the pre-starter phase were taken at weeks 0, 1, 2, 3 and 4 using a digital scale. Data from this study were subjected to ANOVA analysis, followed by a Duncan multiple range test The findings showed notable variations in body mass and FCR among all BS chicken groups (P < 0.05). Notably, BS5 exhibited the highest performance in both body mass and FCR analyses, achieving 392.50 ± 42.76g at week 4, and an overall FCR of 2.01 ± 0.80.
Theoretical substantiation of water inflow into the mined-out space of quarries mining hard-rock building materials
Authors: Cherniaiev Oleksii , Anisimov Oleh , Saik Pavlo , Akimov Oleksandr 
Published: March 2024

Abstract
This paper covers topical issues of groundwater and surface water inflow depending on the quarry field spatial dimensions, which leads to an increase in the costs of dewatering and drainage. The spatial dimensions of a quarry field are one of the key indicators in determining the appropriate depth of mining the deposits of hard-rock building materials. The theoretical research is performed using the following methods: statistical and analytical research method for analyzing the hydrological characteristics of non-metallic deposits and their parameters; graphic-analytical method for determining the area of the quarry walls from which water flows due to groundwater and atmospheric precipitation; technical-economic method for assessing the patterns of changes in costs for dewatering the quarry depth; and method of options for selecting the type of water drainage equipment. As a result, patterns have been obtained that characterize the change in the normative inflow of atmospheric precipitation depending on the quarry field area and the change in the unit costs for dewatering depending on the type of the studied quarry field. The practical significance of the conducted research is to use the obtained results of developed design solutions, tested and implemented in the scientific-technical (project) documentation for the mining conditions of Sofiivskyi, Mykytivskyi, Boleslavchykskyi, Chaplinskyi, and Lyubimivskyi fields of non-metallic hard-rock minerals.
Research of geospatial variability of quality indicators of Zlobychi alluvial ilmenite deposit
Authors: Krivoruchko Andrii , Remezova Olena , Levytskyi Volodymyr , Skyba Galyna , Kolodii Maryna 
Published: March 2024

Abstract
The paper assesses the geospatial variability of quality indicators of the Zlobychi alluvial ilmenite deposit of the Irsha group of deposits. The variability of quality indicators was also studied. Based on the use of statistical methods, the dependencies between individual quality indicators were established. A close correlation between the ilmenite content and the thickness of the formation, the thickness of the sole and the thickness of the peat, and an average correlation between the thickness of the formation and the thickness of the sole were found. The main result of the research is the construction of complex placer models, which are used to clarify the structure and conditions of the deposit formation, and to identify conditioned and unproductive areas. The correlation between the distribution of ilmenite and the value of the thickness of the ventilation crust was established. The data for determining the optimal development directions are presented and the zones of mineralization are identified.
Determination of rational technological schemes for the completion of open-pits taking into account land reclamation
Authors: Cherep Andrii 
Published: March 2024

Abstract
The analysis of objects of landscape disturbances under opencast mining is carried out. The arrangements for reclamation of residual mines and earth’s surface relief formation at the opencasts of the Pokrovskyi mining and processing enterprise are determined. The basic approaches for final extraction of opencasts in order to mining method are investigated. Reclamation processes during final open-pit mining are justified, taking into account the development of mineral reserves at the ends of the open-pit.