bluuebunny/crossref_metadata_2025 huggingface dataset:
Patient-Reported Symptoms after Midfacial Trauma
Authors: Pauli Nina , Grinups Martina , Folkestad Lena , Gudnadottir Gunnhildur
Published: January 2022

Background The aim of this study was to assess patient-reported symptoms and health-related quality of life, 12 to 24 months after injury in patients with midfacial fractures.

Methods Patients diagnosed with midfacial fractures were assessed regarding symptoms related to the fracture as well as assessment of the patients overall health-related quality of life using the Gothenburg Trismus Questionnaire (GTQ), the Folkestad facial trauma questionnaire, and EuroQol five-dimensional (EQ-5D). Questionnaires were distributed to the study patients 12 to 24 months after the trauma. Medical records were retrospectively surveyed for age, gender, trauma etiology, date of injury, fracture classification, treatment regimen, and time of surgery.

Results Sixty-seven percent of the study group reports sensibility disturbance in the face 12 to 24 months after trauma and 52% reported cosmetic consequences related to the trauma. Numbness in the face was the symptom reported to be most disturbing for the patients. Few of the patients reported severe jaw-related problems, problems with muscular tension, or eating limitation according to the validated questionnaire GTQ.

Conclusion Sensibility disturbance remains a significant and common symptom 12 to 24 months after midfacial trauma. There is a need for a validated patient-reported outcome instrument for facial trauma that covers multiple aspects of facial trauma such as vision disturbance and diplopia, jaw-related problems, and facial pain as well as sensibility disturbance and cosmetic consequences.
A novel optimization method for wind power investment considering economic and security concerns
Authors: Ayvaz Alisan , Genc Istemihan
Published: January 2022

This paper proposes a novel optimization method for wind power investment to find the optimal location and sizing of multiple wind farms considering both the economic and security aspects of power system operation and planning. The proposed approach maintains the system's security against transient instabilities while improving the voltage profile in the network and minimizing the cost resulting from the investment of wind farms and their operation with thermal units. The transient stability assessment is performed for the power system, considering the uncertainties due to its wind power generation. To model these uncertainties, Taguchi's orthogonal array testing method is utilized. Using Taguchi's method, all the uncertainties in an optimization problem are modeled with only a few representative testing scenarios, and thus, it provides computation efficacy. Moreover, an enhanced hybrid algorithm combining the particle swarm and gray-wolf optimization methods is developed to obtain efficient results in solving the problems formulated. The proposed wind power investment approach is implemented on the New England 39-bus test system, and the results show its effectiveness in providing a reliable and economic wind investment strategy for both investors and operators in the long-term operation and planning of the power system.
High-resolution laser spectroscopy of the trans- and cis-1-vinylpropargyl radicals
Authors: Gu Jingwang , Yu Chunting , Xiao Zengjun , Zhang Qiang , Chen Yang , Zhao Dongfeng
Published: January 2022

Rotationally resolved spectra of the Ã2A′′–X̃2A′′ origin bands for both trans- and cis-conformers of 1-vinylpropargyl radical (1VPR) are experimentally studied. Rotational constants for both ground and electronically excited states are experimentally determined. The stability of the Ã2A′′ excited state of the cis-1VPR is found to be higher than that of trans-1VPR, which is likely due to additional π-overlap and increased pπ electron delocalization in the excited state of cis-1VPR.
Unexplained dissociation pathways of two-body fragmentation of methane dication
Authors: Rajput Jyoti , Garg Diksha , Cassimi A. , Méry A. , Fléchard X. , Rangama J. , Guillous S. , Iskandar W. , Agnihotri A. N. , Matsumoto J. , Ahuja R. , Safvan C. P.
Published: January 2022

The ion-induced fragmentation of CH42+ into H+ and CH3+ is studied using a cold target recoil ion momentum spectroscopy in coincidence with the charge state of the post-collision projectile. Using constant velocity Ar9+ and N3+, results from four different datasets are presented, with a selection on the final charge state of the projectile (Ar8+ or Ar7+ and N2+ or N+). Three distinct dissociation pathways (I, II, and III) are observed for each dataset, with the mean kinetic energy release values of around 4.7, 5.8, and 7.9 eV, respectively. The electronic states that are populated correspond to electronic configurations (1t2)−2 and (2a1)−1(1t2)−1 of the methane dication, CH42+. The relative branching ratios between the three pathways are discussed as a function of the charge state of the post-collision projectile, and a strong correlation with the specific nature of the ion–molecule interaction is found. The existing ab initio calculations have provided an explanation only for pathway II. In this article, we propose an explanation for pathway III, but pathway I still remains unexplained and requires further theoretical efforts. A discussion of the dependence of dissociation on the mode of excitation is presented.
Structural Investigation into Magnesium Based MOFs Derived from Aliphatic Linkers
Authors: Dharma A. David , Chen Celia , Macreadie Lauren K.
Published: January 2022

Lightweight metal–organic frameworks (MOFs) with large volume storage capabilities are highly sought after as solid adsorbents in gas storage applications. This is particularly important for hydrogen gas adsorbents and can be explored through constructing MOFs from magnesium, which is a light metal and can readily form lightweight frameworks. Recently, the use of bulky, 3D aliphatic linkers in MOF synthesis has resulted in materials with higher gas adsorption enthalpies at lower pressures. Here, we employ both aliphatic linkers and magnesium clusters to produce lightweight, aliphatic frameworks with potential use for gas adsorption applications. Two magnesium MOFs were synthesised, 3DL-MOF-2 and 3DL-MOF-3 (3DL = 3DLinker), and structurally investigated using single crystal X-ray diffraction. While these MOFs do not have any accessible void spaces and therefore cannot be used for gas adsorption, they create a platform for future magnesium aliphatic MOF research to form open frameworks.
Mervyn Silas Paterson 1925–2020
Authors: Jackson Ian
Published: January 2022

Mervyn Paterson exploited a background in metallurgical engineering and the physics of metals as the basis for a long and influential career in earth sciences, mainly at the Australian National University. Recognising the need for specialized equipment for experimental rock deformation, Mervyn made a highly distinctive contribution through his design and construction of a series of machines of progressively increasing sophistication for laboratory studies of the mechanical behaviour of rocks under conditions of high pressure and temperature. The new insights thus obtained in the laboratory have found widespread application in understanding the behaviour of the Earth’s crust and underlying mantle, notably within the disciplines of structural geology and geodynamics.
Wind climate of the Melbourne metropolitan area
Authors: Holmes J. D.
Published: January 2022

This paper describes a probabilistic analysis of data recorded by the Bureau of Meteorology (BoM) for the wind climate of the Melbourne metropolitan area. It is based on 10-minute average wind data from four automatic weather stations (AWS) ‒ at Melbourne and Essendon airports, Fawkner Beacon in Port Phillip Bay, and Moorabbin Airport. Corrections to the data were made to adjust to standard terrain conditions and height. For the land stations, these were based on estimates of the surface roughness length at each site as a function of wind direction, making use of recorded gust factors. For the Fawkner Beacon, which is completely surrounded by open water, the surface roughness length is a function of mean wind speed, and the Charnock relationship was used in determining the corrections.
For each station the terrain-corrected wind data were fitted with Weibull probability distributions, as an all-direction group and for sixteen direction sectors. Directional probabilities were also determined. The parameters of the all-direction Weibull distributions are very similar for all four stations, but there are differences in directional probabilities for some directions, with a geographic trend from north to south in the region being apparent. Some possible explanations based on the general topography are given.
Why are they so similar?
Authors: Lorenz Eliane , Toprak-Yildiz Tugba Elif , Siemund Peter
Published: January 2022

This study investigates the relationship between (extra)linguistic variables and proficiency in a foreign
language. Based on 1,403 secondary school students in Germany (age 12/13 and 14/15), we assess whether proficiency in German, if
applicable also Russian or Turkish, cognitive ability, school type, gender, socio-economic status, self-concept, motivation, and
self-assessment function differently in predicting English language proficiency when monolingual German learners of English
(n = 849) are compared to their bilingual peers (Russian-German: n = 236; Turkish-German:
n = 318). Two comprehensive structural equation models capture the multitude of factors influencing foreign
language acquisition and contribute to the discussion on multilingual advantages or effects. The results reveal that most
variables are statistically significant, but the models function comparably across the three language groups with only minor
contrasts regarding effect sizes. We submit that the three language groups are more similar than different and that the heritage
languages Russian and Turkish add comparatively little to predicting English language proficiency.
Fabrication of highly lattice mismatched AlInSb diodes on GaAs substrates for thermophotovoltaic cells
Authors: Fujita H , Yasuda D , Morohara O , Sakurai Y , Geka H , Inakazu A , Nakao T , Yamauchi T , Suzuki M , Kuze N , Sakurai T
Published: January 2022

We have fabricated and investigated the optical properties of highly lattice mismatched AlInSb thermophotovoltaic cells grown on GaAs substrates. Defects, such as dislocations and surface damage, were minimized by controlling the strain of the film structure and by using a silicon nitride passivation layer. An output power density of 9.7 mW cm−2 was achieved under 1000 °C blackbody radiation with an incident power density of 1.63 W cm−2, which gave a power conversion efficiency of 0.59 %. Optimal efficiency of above 5% was estimated by a simulation using recombination parameters obtained from electroluminescence analysis. Additionally, a six-fold increase in spectral efficiency was confirmed by using a 3.3 μm monochromatic light source, which indicated that a thermophotovoltaic cell with a high efficiency of more than 30% would be possible in combination with wavelength-selective emitter.
Weibel instability induced by kinetic stimulated Raman scattering in unmagnetized and magnetized plasmas
Authors: Zhou Y Z , Zheng C Y , Liu Z J , Cao L H
Published: January 2022

The kinetic stimulated Raman scattering (SRS) is found to result in significant Weibel-generated magnetic fields via 2D particle-in-cell simulations. During the high-intensity laser pulse, the daughter electron plasma waves of SRS heat the electrons effectively and lead to anisotropy in the velocity space. This anisotropy results in the development of a quasi-static magnetic field near the laser speckle, and the growth rate has been discussed. The results show that the kinetic SRS can lead to an averaged magnetic field of more than 10 T, which can be an important magnetic field source in laser-plasma experiments. Besides, the energy of the Weibel-field undergoes an oscillatory rise with the SRS bursts and can be stable after cutting off the laser. Moreover, in the magnetized plasmas, the application of a longitudinal magnetic field enhances the SRS, but interestingly, it significantly reduces the growth rate of Weibel instability. Simulation results also indicate that a small transverse magnetic field can evidently change the motion of the hot electrons, which dramatically destroys the symmetry of the SRS and the Weibel-generated magnetic fields.
Modeling the Impact of Climate Change on General Flowering in Bukit Barisan Selatan National Park, Sumatera
Authors: Afifah H , Sunarya S , Dewi S P , Utoyo L , Sibarani M C
Published: January 2022

In Southeast Asian dipterocarp forests, a general flowering (GF) occurs at the multiannual interval. At this phenomenon, at least 40% of the trees in the stands flower in synchrony, dominated by the flowering of the Dipterocarpaceae family that hypothesized to be caused by changes in climate factors, especially ENSO. This study aimed to determine the pattern of flowering trees in Bukit Barisan Selatan National Park (BBSNP) and to determine a model for predicting flowering patterns associated with climatic factors in 2021-2050. Flowers and fruits were observed every month from February 1998 to September 2020 at Way Canguk Research Station, BBSNP. The climatic factors used were temperature, rainfall, humidity, wind speed, and the ENSO index. We used a generalized linear model to link climatic factors and flowering and model future flowering. The results showed no GF in BBSNP because the highest flower synchronization only reached 37.8%. The climatic factor with the highest coefficient was ENSO, but flowering was mostly influenced by fluctuations in climate factors, not its absolute value. The model estimated that the flowering in 2021 - 2050 will peak to 34.4% in December 2044 and further ensure good forest regeneration. Thus, BBSNP can still be suitable for conservation purposes.
Ecosystem services analysis as disaster prevention and protection functions in Bogor Regency, West Java
Authors: Munajati S L , Kartodihardjo H , Saleh M B , Nurwadjedi
Published: January 2022

Bogor Regency is vulnerable to multi-disaster-threats areas such as flood, erosion, and landslide. The purpose of this study was to analyze the ecosystem services in Bogor Regency. The aspect of ecosystem services is the function of prevention and protection from natural disasters. Land-use change and land facet maps are primary data used in determining the ecosystem services index of disaster prevention and protection. The SPOT 4, 6, and 7 were interpreted to determine changes in land use from 2010 to 2017. The land facet data was sourced from the Geospatial Information Agency (BIG). The analysis in this study was carryout by Analytical Hierarchy Process (AHP) sourced from 35 contributors. The results showed that 8.94% of the total area of Bogor Regency had undergone land-use changes from 2010-2017. The most extensive land-use changes were plantation (2.65%) and farming fields (2.47%). The most vulnerable area to the threat of a multi-disaster is the eastern part of Bogor Regency. This area is already congested with settlements, so that the vulnerability and element at risk are fairly high. Meanwhile, results gained from the AHP show that forests play an important role in disasters prevention and protection in Bogor Regency.
Anticipate the impact of climate change at tidal swamplands through water management technology
Authors: Mawardi  , Khairullah I
Published: January 2022

Climate change significanly affects the production of agricultural commodities, including tidal swamplands. The current and future tidal swamplands have become one of the mainstay areas for agrarian commodity production due to the shrinking productive land. One of the keys to successful tidal swampland management is water management. In addition to increasing land productivity, water management can also reduce the impact of global climate change. Water management in agricultural development at tidal swampland needs to pay attention to the type of overflow, land typology, and land characteristics. Water management technology at recurrent event wetland embrace two-ways flow systems, unidirectional flow systems, one-way flow system and dam overflow conservation (SISTAK), water management for surjan, and shallow evacuation systems. the employment of this water management technologies depend upon the condition of water system within the fields. The water control era ought to enhance water first-class while mixed with different plant cultivation technological additives and it will likely be extra powerful in growing rice manufacturing at tidal swampland. This paper was a review of research results of water management technology in rice cultivation and its impact on increasing rice production.
Species composition and structure of mangrove forest exposed to plastic waste in Angke Kapuk mangrove protected forest, Jakarta
Authors: Rumondang A L , Kusmana C , Budi S W
Published: January 2022

Angke Kapuk Mangrove Protected Forest (AKMPF) is one of the protected mangrove forests in the coastal area of DKI Jakarta exposed to plastic marine debris. This study aims to determine species composition and forest structures of mangrove forest exposed to plastic waste which is important as basic information for sustainable mangrove forest management in Angke Kapuk mangrove protected forest. Vegetation data were collected using the sampling unit of transect for tree and line plot for forest regeneration inventories. Those data were analysed for the density, frequency, dominance, species diversity, and species distribution pattern. The results show that the area of AKMPF exposed to plastic waste consists of 9 mangrove species, including 6 species of true mangrove, 2 species associated mangrove, and 1 species of palm, with the dominant species are Avicennia marina for tree with its regenerations and Acrostichum aureum for groundcover, which are species that live in disturbed mangrove areas. Mangrove trees in this area have a height class between 4 – 25 meters, while stem diameter class were between 10.00 – 69.75 cm. The most distribution pattern of species in this area generally was regular, except sapling of Avicennia marina, seedling of Rhizophora mucronata, and Acrostichum aureum distributed randomly.
Climatic Suitability for Robusta Coffee in West Lampung Under Climate Change
Authors: Sarvina Y , June T , Sutjahjo S H , Nurmalina R , Surmaini E
Published: January 2022

West Lampung has long been recorded as one of the Indonesian major Robusta coffee producers. Coffee is an annual crop sensitive to climatic conditions. Therefore, climate change have been reported to affect yield and area suitable for coffee production. Assessing climate suitability coffee area in West Lampung is crucial for a sustainability of coffee production system. This study aims to identify changes in coffee crop suitability under climate change. Coffee production data from the local agriculture office and climate data from Wordclim were processed using Maximum Entropy (MaxEnt) and ArcGIS to project the impact of climate change on distribution change of coffee suitability. The Result of MaxEnt indicates an important shift in climatic suitability of coffee area in the future. Suitable grown areas decrease. This shift requires an adaptation strategy for sustainable coffee production system in West Lampung.
Species composition and Vegetation Structure of Mangrove Forest in Pulau Rambut Wildlife Reserve, Kepulauan Seribu, DKI Jakarta
Authors: Kusmana C , Azizah N A
Published: January 2022

Mangrove forest in Pulau Rambut Wildlife Reserve has high biodiversity, so research is needed on species composition and vegetation structure. This study aims to examine the species composition and structure of mangrove forest vegetation in the Pulau Rambut Wildlife Reserve. Vegetation analysis was carried out using the strip and line method with a sample plot area of 8000 m2 and a total of 8 lanes each with a size of 10 m x 100 m. The results showed the mangrove forest of Pulau Rambut Wildlife Reserve has 9 species from 5 families and dominated by the Rhizophoraceae family. The Rhizophora mucronata species dominates the growth rate of trees and seedlings, while Ceriops tagal species dominated the sapling growth rate. The value of diversity, richness, and dominance in the mangrove forest of Pulau Rambut Wildlife Reserve at various growth rates is low, but the value of species evenness is high. The proportions of the number of trees and regeneration form an inverted “J” curve. The canopy stratification in mangrove forest of Pulau Rambut Wildlife Reserve only reached stratum C (4-20 m). The mangrove forest needs a planting and enrichment of plant species to increase the species diversity level.
Study of biophysical land characteristics to support the sustainability of Gunung Batu Arboretum as a miniature botanical garden in Bogor City, Indonesia
Authors: Suratman  , Widiatmaka  , Pramudya B , Purwanto M Y J , Agus F , Syamsudin I
Published: January 2022

Gunung Batu Arboretum is part of the nature conservation area in Bogor City, West Java, Indonesia. It holds an essential role in supporting conservation effort activities through ex-situ of various trees species. Land biophysical research been carried out aimed at protecting the role of the Arboretum, which supports the growth of various plant collections of forest resources totaling 1,178 stems. The research was conducted in the field by making a soil profile and observing the characteristics of the environment and trees. The results showed that the location of the Arboretum was at the feet of stratovolcano, elongated ridges landform of Salak Mountain. The old volcanic rock covering this region form reddish-brown Latosol soil with deep solum, delicate texture, very friable and low aggregate stability, a very steep slope topography (slope >40%), supported by high rainfall, with an increased risk of erosion even it has landslide potential. The chemical character of the soil fertility is classified as acidic, low to moderate base saturation, low nutrient content, potentially the degradation of the soil fertility, especially the loss of topsoil, which is very supportive to the growth of the various types of trees collection in the Arboretum area.
A comparative study of ZnO nanogenerator based piezo in series and parallel as green energy harvester
Authors: Adinegoro P , Ali H , Saparullah  , Sunaryono  , Aripriharta  , Mufti N
Published: January 2022

This paper reports the performance of the flexible nanogenerator as a green energy harvester depends on connection variation. The ZnO nanogenerator was successfully fabricated on Al/PET. The ZnO Nanorods were synthesized using a hydrothermal method at 95°C. The ZnO Nanorods were characterized using x-ray diffraction (XRD), scanning electron microscopy (SEM), fourier transforms infrared spectroscopy (FTIR), and UV-Vis spectrophotometer. The performance of the nanogenerator was performed using Osiloscop and electrometer in series and parallel connection. Based on the XRD pattern, ZnO sample has a hexagonal (wurtzite) crystal structure in which the lattice parameters of a = b, and c = 3.258 Å, and 5.218 Å, respectively. The morphology of ZnO is a hexagonal form with diameters of 81,06 nm to 467.69 nm and rod length around 595 nm to 1331 nm. Based on the FTIR spectra, there are Zn-O bonds at 435-445 cm-1, 535 cm–1 and, 541 cm-1. Moreover, ZnO nanorods have an energy gap band of 3.2 eV. The performance of the ZnO nanogenerator in series form has the highest voltage with a value of 10.36 volts AC, and the voltage value in dual-source is more than ten times larger compared to a single source.
Trophic Status and Phytoplankton Community Structure of Four Small Lakes in Ciliwung Watershed, Indonesia
Authors: Sulastri  , Aisyah S , Dina R
Published: January 2022

Small lakes are critical freshwater resources to support the quality of human life. Small lakes in the watershed are becoming threatened ecosystems because of increasing land-use changes and anthropogenic activity. We determine the trophic status, phytoplankton community, and environmental factors in Lake Telaga Warna, Lake Cikaret, Lake Sunter, and Lake Cincin. The data was collected from primary and secondary data in 2000, 2007, 2008, 2016, and 2021. There are two groups of lakes based on water quality and trophic status. Lake Telaga Warna and Lake Cikaret, located at the upper and middle watershed, are eutrophic characterized by lower nutrient temperature, pH, conductivity, and Total Dissolved Solids (TDS). Lake Sunter and Lake Cincin, located at lower watersheds, are hypereutrophic characterized by higher nutrients, temperature, pH, conductivity, and TDS. Cyanobacteria dominance was recorded in Lake Telaga Warna and Lake Sunter, where Microcystis aeruginosa;
Cylindrospermosis raciborskii; and Planktotrhix agardhii are the dominant species. Hypereutrophic status in Lake Sunter was characterized by the bloom of Planktothrix agardhii with total abundance (1,038x103 individualL-1 x 103), chlorophyll-a (431 µgL-1), low diversity index and species richness index. Cyanobacteria dominance in Lake Telaga Warna was under phosphorous limitation, while Cyanobacteria bloom in Lake Sunter was under nitrogen limitation.
The Water Quality Characteristics and Quality Status of Bengkulu River and Nelas River, Bengkulu Province: Conditions for The Last Six Years
Authors: Khalik I , Sapei A , Hariyadi S , Anggraeni E
Published: January 2022

The existence of extractive activities around the river has a negative impact on the quality of river water. This study aims to provide an overview of water quality characteristics and water quality status of Bengkulu River and Nelas River in Bengkulu Province. The data used is river quality monitoring conducted by the Environment and Forestry Service of Bengkulu Province from 2014 to 2019. Measurements are carried out twice a year representing, the dry season (March to June) and the rainy season (September to December). The observation stations representing upstream, middle and downstream of rivers conditions. The parameters observed were physical, chemical, and biological parameters. The water quality status is determined using the Storet Index. The results show that both rivers have Storet Index >-31. It means that these river water are heavily polluted. Parameters that have exceeded the water quality standard are TSS, DO, BOD, COD, Fe, Mn, Cu, and total coliform. The river water quality parameters, especially heavy metals, may be caused by open land being washed and carried into the river body. The existence of population and animal activities as well as industrial waste outlets at upstream also affect the decline of river water quality.
Trophic Status of Waters in Poso Watershed, Central Sulawesi
Authors: Sulawesty F , Triyanto  , Haryani GS , Lukman  , Samir O , Ali F , Nafisyah E
Published: January 2022

Poso Watershed is a potential area for tropical eel fish resources, the disturbance of the ecosystem balance in the form of damage to the catchment area will affect the existence of eel fish. This study aimed to determine the trophic status of the Poso watershed. Observations were conducted in March 2021 in six zones of the basin, namely Kodina River (1 site), Lake Poso (2 sites), Poso outlets (3 sites), Poso River (2 sites), and Poso river estuaries (4 sites). The observed parameters were water quality (physics and chemistry) and biology (phytoplankton composition and abundance). In general, the conditions of the Poso Watershed are still good, temperatures range from 24.26 ° C-29.24 ° C, pH shows that these waters are alkaline (9.15-10.21), and dissolved oxygen (DO) indicates dissolved oxygen quite high (7,13-7,93 mg/L). The values of chlorophyll-a, total nitrogen (TN), and total phosphorus (TP) showed low. The value of turbidity and total suspended solids is higher at the mouth of the Poso River (MP1-MP4) compared to other stations. The abundance of phytoplankton is low (9-848 individuals/liter), and the species with high abundance is Staurastrum sp. (Chlorophyceae). Hence, this study shows the Poso Watershed, including oligotrophic to eutrophic waters.
Health Assessment Of Conservation Forest-Based On Biodiversity Indicator Tree Types (Case Study at Elephant Respont Unit Margahayu Way Kambas National Park)
Authors: Sanjaya F A , Safe’i R , Winarno G D , Setiawan A
Published: January 2022

Conservation forest health assessment based on indicators of tree diversity is needed because it is sensitive to changes, indicators of ecological systems, spatial, temporal, and trophic heterogeneity. This study aims to determine the variety of tree species in Margahayu Elephant Response Unit Way Kambas National Park as an indicator of forest health assessment. The research was conducted using the Forest Health Monitoring method. The area of Margahayu Elephant Response Unit in Way Kambas National Park is 35.2 ha. One cluster plot has an area of 0.4 ha, so the number of research clusters created in this study is 5 clusters with a total area of 2 ha of observational collections. The results showed that the final value of forest health status with indicators of biodiversity (tree species diversity) in Margahayu Elephant Response Unit Way Kambas National Park was in the excellent category of 20% in cluster plot 2, while 60% in cluster plots (3, 4, and 5), and 20% poor in cluster plot 1, thus indicating that the forest in the Margahayu Elephant Response Unit Way Kambas National Park is in a reasonably healthy (stable) condition with a moderate category.
Nutrition Value and Growth Ability of Aquatic Weed Wolffia
globosa as Alternative Feed Sources for Aquaculture System
Authors: Said D S , Chrismadha T , Mayasari N , Febrianti D , Suri A R M
Published: January 2022

One of the problems of aquaculture is the high cost of feed. Therefore, how to minimize the feed cost is of the main goals. It is necessary to find out natural sources that can be used as alternative feed. Wolffia globosa is an aquatic weed that is presumed to be used as an alternative feed source. Study the nutritional content of the Wolffia was conducted in June 2019, while the growth ability was conducted both outdoors and indoors in July 2019 at Research Center for Limnology Laboratory, LIPI. The W. globosa (percentage in dry weight) contained protein: 45.54%, fat: 5.33%, crude fiber: 9.98%, ash: 20.43%, and Nitrogen Free Extract:19.21%. It also contains 15 types of amino acids as much as 1.51 %w/w. At the outdoor system culture, the Wolffia has daily growth rate/GR (g/day) was 64.62−120.6, specific growth rate/SGR (%/day) was 14.622-15.333, and the daily productivity/P (g/m2/day) was 97.757−176.659. While at the indoor system culture the value of GR (g/day), SGR (%/day), and P (g/m2/day) were 0.675−1.50; 9.889−12.643; and 25.883−64.564 respectively. It is indicated that this Wolffia is very potential to be an alternative natural feed source for aquaculture or another purpose and needs further research.
The Prospect of Geotourism in the Cycloop Mountains Conservation Area Papua
Authors: Setiadji P , Sulistyantara B , Pramudya B , Suwardi
Published: January 2022

The Cycloop mountains in Papua are a nature reserve conservation area that has diverse geology, biology and culture. This paper discusses the prospects of geotourism in Cycloop mountains based on a method of analyzing the community acceptability and tourists preferences, likewise the geosite attraction and geotourism sustainability. The results of analysis indicates that a) village communities in surrounding conservation area accept and wish to get involved in natural activities; b) local tourists are very dominant and motivated on outdoor recreation in groups; c) identified geosites has classified as from Quite Interesting to Interesting based on the index of attractiveness; and d) geotourism activity in the mountains Cycloop is categorized Quite Sustainable reviewed from the environment, society, economy and governance dimension. The exploration and the geological conservation to be the reliable activities in organizing the geotourism. Geotourism is likely to be applied to the conservation area as a form of implementation of the sustainable tourism concept.
Environmental Footprint Analysis Tools of Electrokinetic Remediation (EKR): A Bibliometric View of The Literature
Authors: Paramitadevi Y V , Ratnawati B , Effendi A J , Hidayat S , Budihardjo M A , Ramadan B S
Published: January 2022

Electrokinetic remediation (EKR) technology has been applied in both lab and pilot scales to actual size since 1993. Recently, sustainable measures for EKR have been relatively considered a form of minimizing resource use during land restoration. This study aims to identify the environmental footprint assessment tools that arise during the EKR process according to the scale of the application. 284 scientific literature indexed by Scopus and the Web of Science during 2011-2021 was analyzed using the Systematic Literature Review (SLR) method, and the results were visualized using the VOSviewer application. The investigated parameters included the amount of scientific literature, year of publication, topics of scientific literature, authors of literature and their country of origin, names of reputable journals, and a number of citations. Research results from 43 scientific literature studies show that different environmental footprint analyses in EKR have been applied in various parts of the world. Most of environmental footprint assessment tools used by researchers include life cycle assessment (LCA) and green and sustainable remediation (GSR) tools. A recommendation is given to the GSR tools developed by the US EPA because known to have the simplest analytical method compared to other methods.
Heavy metals (Pb and Cd) contents in the seawater and sediment in Panjang and Pamujaan Besar Islands, Banten Bay, Indonesia
Authors: Juniardi E , Sulistiono  , Hariyadi S
Published: January 2022

The industrial activities in the coastal area of Banten Bay harmed water quality and tourism aesthetics. This study aims to determine the accumulation of heavy metals Pb and Cd in the water and sediment, which was conducted for 3 months from May until July in 2019 in Pulau Panjang and Pamujaan Besar. Data were collected by using the purposive sampling method. The water samples were studied using Van Dorn Water Sampler, while sediment samples were undertaken using Peterson Grab. The concentration of Pb and Cd in water and sediment were analyzed at the Environmental Laboratory of the Department of Aquaculture. Those Concentrations in waters and sediments were the highest in June than in other months. In general, the water quality was still classified as normal because it was under the quality standards of the Decree of Ministry of Environment No. 51 of 2004. Heavy metal in Banten Bay fluctuated while Pb exceeded the quality standard in June and decreased in May and July. While Cd metal in May and June exceeded the quality standard and then declined in July. Those concentrations were still below the standard limits of the Canadian Council of Ministers of the Environment 2001.
The Effect of Demographic Factors on Waste Generation and Heavy Metal in Illegal Landfill at Malaka Regency, East Nusa Tenggara Province
Authors: Rame Leonarda Sofiani , Widiatmaka  , Hartono Arief , Firmansyah Irman
Published: January 2022

The population growth has led to a significant increase in the amount of waste every year. Meanwhile, several demographic factors influencing waste generation in Malaka Regency include an absence of a final landfill. This has caused the illegal dumping of waste which leads to various environmental problems. Therefore, this study aims to (I) analyze the effect of demographic factors on waste generation (II) determine the level of heavy metals and the chemical properties of the soil in the illegal landfill. In this study, the demographic factor sampling was conducted in all districts using a questionnaire to obtain each household sample and waste was weighed directly with the Stratified Random Sampling method. Also, soil samples at the landfill site were obtained through field observation and composite sampling. The results showed that age, gender of each family head, income, occupation, latest education, and the number of family members had a significant effect on waste generation in Malaka Regency. Based on the results, the content of Pb, Cd, and Hg in the soil at different waste disposal sites in Malaka Regency had passed the standard threshold value in soil, which showed that the land had been polluted by heavy metals.
Current Source and Distribution Pattern of Plastic Waste Leakage in the Estuary of Jakarta Bay
Authors: Ardiansyah  , Damar Ario , Hariyadi Sigid , Machfud
Published: January 2022

The accumulation of plastics in marine environment has increased the global risk of water pollution. Its uncontrolled production and existing management capacity have brought a burden on current plastic waste management, especially in Jakarta Bay. It has a negative impact on land, ecosystems, and especially the food chain and marine organisms. Their improper management has reduced the quality of environment, human health, and influenced economic sectors. Economic activities which involve coastal areas have consistently become a major source of plastic waste leakage either directly or indirectly. This study aims to analyze current source and its distribution patterns of plastic waste leakage in estuaries of Jakarta Bay using in-depth interviews and field observations. The results show the estuaries at the eastern part of Jakarta Bay is the highest potential for plastic waste leakage, followed by the western part, and the middle part is the least contributing plastic waste of leakage. The various sources of leakage in the estuaries are identified, including the behavior of the community that is vulnerable to exacerbates the existence of leakage. Handling capacities are limited including facilities, and the intensity of collection in the wide coverage of the operating area made the challenges to the responsible authorities.
Riverine Plastic Monitoring during the Rainy Season in the Citarum Estuary of Muara Gembong
Authors: Husrin S , Hidayat H , Rahmadya A , Aisyah S , Hurley R , Braaten H F V , Olsen M
Published: January 2022

The restoration effort to clean up the river, known as “Citarum Harum” requires monitoring to estimate both the composition and the volumes of plastic pollution. The objective of the monitoring is to obtain a scientific baseline of marine plastics from Citarum River as a function of other influencing aspects. A static net trawl (60 m x 10 m, mesh size 2.5 cm, and about 1 meter submerged) was installed under the New Muara Gembong Bridge for eight consecutive days in March and April 2021 or during the rainy season. The trapped debris was collected manually into boxes using two boats and simple tools. After the drying, weighting, classification processes and by excluding natural organics (leaves/branches), plastics contributed as the most dominant for both abundance (83%) and weight (31%) followed by textiles, hazardous materials, construction materials and rubbers. The hydrological conditions as well as the tides were also observed to be one of dominant parameters. The quantification of macro-plastic litter transport from River Citarum into the Java Sea is also an aim for the ASEANO project (ASEAN – Norway cooperation project on local capacity building for reducing plastic pollution in the ASEAN region).
Economic losses analysis due to the impact of climate change on the health sector in Indonesia
Authors: Pratiwi S D , Perdinan  , Mustofa I , Janna S C , Tjahjono REP , Aprilia S , Herawati T , Anwar A
Published: January 2022

Changes in environmental conditions due to climate change have the potential to change the pattern of disease spread and reduce the degree of human health. Health is a human right and a vital factor for human activity. Indirectly, health plays an important role in supporting economic activity and national development. This study aims to analyze the potential economic losses to the health sector due to climate change. The economic impact is calculated from losses through increasing the prevalence of climate sensitive diseases in the future, including dengue fever, malaria, diarrhea, and pneumonia. The distribution of diseases based on climatic factors is used to estimate the total prevalence. The number of disease prevalence was obtained by sensitivity analysis which was adjusted to the results of the RCP 4.5 CSIRO and MIROC models. The results showed that the impact of climate change on climate sensitive diseases has the potential to affect Indonesia’s Gross Domestic Product (GDP) by 0.1% or equivalent to Rp. 7.6 trillion. Climate change is projected to trigger disasters more frequently, thus increasing health losses by up to 1.8% of Indonesia’s national GDP. Strengthening climate change adaptation action in the health sector needs more attention to reduce these losses
A-G-I-L scheme as social system to build characters caring for the environment through the Adiwiyata program
Authors: Megawati S , Niswah F , Mahdiannur M A , Segara N.B.
Published: January 2022

Environmental issues are a shared responsibility, concern for ecosystem stability, and environmental productivity. For this reason, government policies also lead to education which must also build a caring character for the environment. In a non-formal way, the education applies environmental care by synergizing all character-building aspects that care for the environment. This study aims to analyze the A-G-I-L Scheme as an effective social system in building the character of caring for the environment through the Adiwiyata program. The method in this research is descriptive qualitative with data collection techniques of observation and documentation. The results show that obtained ecological intelligence through education. Therefore, in environmental awareness, competence is needed in environmental awareness as an indicator of the student’s awareness of a healthy environment. Students developed their sensitivity, awareness, understanding, critical thinking, solving environmental issues, and forming environmentally sound ethics. The Adiwiyata program can help students develop a single “core competence” to practice the principles of sustainable development in society as responsible citizenship. The Adiwiyata program only can achieve the goal if all school components from the school leader, teachers, staff, students, and the students’ parents support the program.
Tracking Environmental Quality of Indonesia’s New Capital City and its Surrounding Area
Authors: Adinugroho Wahyu Catur , Prasetyo Lilik Budi , Kusmana Cecep , Krisnawati Haruni
Published: January 2022

Environmental degradation is often a trade-off from development, and this is a challenge in the development of Indonesia’s new capital city. This study aims to provide historical information on environmental quality in the new capital city and its surroundings to broaden understanding of the development of a new capital city in realizing the forest city concept. Study review, descriptive statistics, and spatial analysis were used in this study. NDVI from MODIS imagery was processed using Google Earth Engine. Spatial data from various sources were overlayed and analyzed to identify deforestation, forest cover, forest degradation. The result of this study clearly shows that Kutai Kartanegara, Paser, and Kutai Barat Regencies will become an environmental buffer for Indonesia’s new capital city with dynamic environmental quality. There was a decreasing trend in deforestation, while the trend of the increase occurred in Kutai Barat and Kutai Kartanegara. Paser and Kutai Barat, which have the highest percentage of forest cover > 40%. The forest degradation only occurred in three regencies, Kutai Kartanegara is the highest. The ratio of forest biomass potential to the area: Kutai Kartanegara > Paser > Kutai Barat > Penajam Paser Utara > Balikpapan.
AHP-GeoTOPSIS method to analyze priority areas for sugarcane plantation development in Lamongan Regency
Authors: Artikanur S D , Widiatmaka  , Setiawan Y , Marimin
Published: January 2022

Sugar imports are carried out every year in Indonesia to meet domestic needs. The average sugar imports from 2015 to 2019 reached 4.34 million tons. The Spatial Plan of Lamongan Regency 2011-2031 proclaims the development of sugarcane plantations, but the priority assessment of the development area which takes into account the balance of sugarcane availability in the future has not been scientifically studied. This study aimed to analyze the priority areas for sugarcane plantation development in Lamongan Regency. Analysis of development priorities was carried out using the AHP-GeoTOPSIS method and involving six experts. The criteria used include the number of agricultural households, suitability, and availability of land for sugarcane, population, and the balance of sugarcane availability in each sub-district. Land use datasets were used to calculate the suitability and availability of land and the balance of sugarcane availability in each sub-district. Based on the analysis, there were five priority areas for land development. There four subdistricts to be developed are as follows: Ngimbang, Solokuro, Mantup, and Kedungpring with weight values of 0.797, 0.776, 0.726, and 0.683, respectively. The study results can be used as input for the development of sugarcane plantations within the spatial plan of Lamongan Regency.
Monitoring of plastic debris in the lower Citarum River using Unmanned Aerial Vehicles (UAVs)
Authors: Rahmadya Aldiano , Hidayat  , Aisyah Siti , Husrin Semeidi , Olsen M
Published: January 2022

Plastic pollution has become a problem in recent years. Various methods are used to reduce and prevent plastic pollution. Many methods have been used to estimate the abundance and transportation of plastics in waters, especially rivers. This paper presents the use of an Unmanned Aerial Vehicle (UAV) to observe plastic waste in river flow. Monitoring plastic debris was conducted at the downstream part of the Citarum river in the Muara Gembong sub-district, Bekasi Regency, West Java Province, on March 6, 8, and 10, 2021. The type of drone used was the DJI Phantom 3 Pro. Data analysis uses the CVAT program developed by Intel to label images. The results show differences between visual counting and UAV, visual counting has a higher value than UAV, but VC might suffer from an observer bias. The counting bias is dependent on the current and the ability of the eye. On the other hand, the results of aerial surveys during the calculation process can be reinterpreted manually or automatically and corrected again. Monitoring plastic debris using UAVs can be an alternative to observing the plastic transportation process in rivers, especially in areas that are difficult to access.
An Analysis of Spatio-Temporal Water Vapor Variation in the East Java using Ground Based GPS Receivers
Authors: Susilo  , Handoko E Y
Published: January 2022

Water vapor plays a critical role in the global/regional scale of weather and climate changes. Traditionally, the water vapor measurement uses radiosonde balloons which are very sparse in the distribution. The utilization of GPS as a new method for studying water vapor has been studied in several publications. This research analyzed the precipitable water vapor (PWV) based on ground-based GPS receivers in the East Java region. In the first part, the datasets are compared. The Zenith Total Delay (ZTD) from GPS processing will be compared with the Zenith Path Delay from the International GNSS Service (IGS) results. The comparison of ZTD and ZPD shows a good agreement. The comparison of GPS PWV and Radiosonde shows a good agreement. The spatio-temporal of GPS PWV is correlated with the Monsoon Asian-Australian cycles that affect weather and climate in Indonesia. The result indicates that GPS data provide valuable information in meteorology and climatology.