bluuebunny/crossref_metadata_2025_split huggingface dataset:
Karyotipe analysis of the tiger barb (Puntigrus tetrazona bleeker, 1855) of North Sumatra
Authors: Supriharti D , Tarigan K , Elimasni  , Hannum S 
Published: June 2024

Abstract
The Tiger barb, Puntigrus tetrazona, is an ornamental fish native to Indonesia with a notably striking visual. The research was conducted to perform a karyotype analysis of the Tiger barb chromosomes, including the numbers, sizes, and shapes. The study employed a descriptive approach, by applying 0.007% colchicine for 12 hours. Chromosome preparation was carried out using solid tissue technique, and staining was performed with 5% Giemsa stain. Data analysis was performed using IdeoKar 1.3 software, and the karyotype of the chromosomes was constructed using Adobe Photoshop CS 3. The results of the study showed that the tiger barb had the number of chromosome haploid were 50 with sizes ranging from 1.16 µm to 5.35 µm. The largest value of r was 0.93 and the largest chromosome had a relative length percentage of 5.57. The chromosome shape percentage was 2.54. The highest centromere index obtained 0.47. Furthermore, the study found a TF% value was 40.48%, an Ask% value was 59.51%, an XCI value was 0.38, and an HCL value was 90.08. This research provides an understanding of the karyotype characterization of the tiger barb and an insight for further research in the genetics study of fish.
Floristic composition of kemenyan toba (Styrax sumatrana) in the community forest Aek Nauli Village, Humbang Hasundutan District, North Sumatra
Authors: Rambey R , Nusantary M 
Published: June 2024

AbstractKemenyan (Styrax sumatrana) is an local species Tapanuli plant that produces sap with quite high economic value. One of the distribution areas of Styrax sumatrana is Aek Nauli Village, Pullong District, Humbang Hasundutan Regency. Ecologically, research on Styrax sumatrana in Aek Nauli Village has not been carried out much. This study aims to determine the composition of the vegetation and the association of Styrax sumatrana with other plants in the Community Forest of Aek Nauli Village. The method of data collection is done by using the Nested plot method. The results showed that there were 47 types of vegetation included in the seedling, sapling, pole and tree levels. At the Styrax sumatrana seedling level, 29 individu were found, 25 individu at the sapling level, 23 individu at the pole level, and 117 individu at the tree level.
Diversity of bivalve and gastropod species in mangrove restoration areas
Authors: Harefa M S , Nasution Z , Tuhono E , Susilowati A , Wulandari W 
Published: June 2024

Abstract
Bivalvia and gastropods are two types of mollusks found in mangrove habitats. This group of mollusks performs a vital function in their environment, including serving as a biofilter and decomposing organic waste. The abundance of bivalves and gastropods in their natural environment is presumed to have been impacted by deforestation and restoration processes in mangrove ecosystems. Therefore, this study was conducted to collect information about the composition and variety of bivalves and gastropods in the mangrove restoration area of Bagan Serdang village in North Sumatra. This research was conducted using the plot method with a plot size of 2m x 2m. Observation plots are created along specified paths with alternate placements. According to the findings, up to 19 types of mollusks were discovered at the study site. This investigation discovered 14 snail species and 10 gastropod families. The other five species are Bivalvia from four different families. M. strigata has the greatest density of 0.26 and the highest relative density of 3.90%. At the study site, the bivalve and gastropod diversity index was moderate (2.127), the evenness index was high (0.722), and the dominance index was low (0.211). It is highly recommended to continue to promote vegetation species at the study location in order to improve bivalves and gastropod species and numbers.
Identification of macrofungal Ganodermataceae in Martelu Purba Nature Reserve
Authors: Rangkuti A B , Nasution V D N , Hartini K S , Ritonga F N , Hafazallah K 
Published: June 2024

Abstract
Fungi are organisms that enrich the diversity of living things in the plant world. Macroscopic fungi significantly affect the forest food web, the survival or germination of saplings, tree growth, and the overall health of the forest. Ganoderma has been widely cultivated in various countries due to its benefits as a medicine which is known to have the ability to treat hypertension, hyperglycemia, acute bronchitis, hepatitis, leukopenia, and arteriosclerosis. Research on mushrooms is still very minimally documented, so this research needs to be done. This study aims to identify the types of macroscopic fungi of the ganodermataceae that exist in Martelu Purba Nature Reserve. This study uses a direct survey method in the field. This method can be done by exploring in an area. Based on the research results, 6 types of macroscopic fungi from the Ganoderma family were obtained, namely Amauroderma rude, Cymatoderma elegans, Ganoderma applanatum, Ganoderma adspersum, Ganoderma pfeifferi, and Ganoderma boninense. The six types of mushrooms come from 3 genera, namely Amauroderma, Cymatoderma, and Ganoderma. Each type has different morphological characteristics which are the basis for distinguishing them. The potential utilization of Ganoderma has now been widely developed in the medical world
Impact of colony age on Trigona sp. activities in the green zones of Universitas Sumatera Utara Campus
Authors: Siahaan D A S , Alfakih I R , Rahayu S , Sitompul R , Hartanto A 
Published: June 2024

Abstract

Trigona, a stingless bee pollinator, is widely domesticated for plant pollination due to its versatility and adaptability to various environments. This study aimed to assess the suitability of green open spaces in Universitas Sumatera Utara campus as a potential habitat for introducing Trigona sp. and to observe how colony age affects the foraging behavior of worker bees. Bee colonies were introduced into specific areas within the Faculty of Mathematics and Natural Sciences garden, positioned at a height of 3.4 meters above ground level. Nine bee hives were strategically placed around the garden for observations in October 2022, focusing on three different colonies based on their ages i.e. 2 m.o (Colony-A), 4 m.o (Colony-B), and 6 m.o (Colony-C). Activities were closely monitored between 8:00 AM and 4:00 PM, with at least three measurements taken for each 10-minute interval. The results showed variations in foraging activity among colonies in terms of peak hours and the number of worker bees. Colonies aged 4 and 6 months had over 50 foragers, while the 2-month-old colony had fewer. Notably, the 6-month-old colony displayed the highest average number of workers engaged in transporting pollen and resin, particularly at 9:00-10:00 AM. Results of Pearson’s correlation analysis indicated that light intensity negatively and significantly influenced the number of returning/entering worker bees, while wind velocity posed a negative and significant impact on the number of returning bees carrying resin. This study provides practical implications for the successful integration of Trigona bees into green open spaces, particularly inside campus area.
Physicochemical and sensory characteristics of sugar-free sapodilla jam with yeast extract addition
Authors: Michelle  , Lo D , Indrawanto R 
Published: June 2024

Abstract
The aim of this study is to develop a sugar-free sapodilla jam incorporated with isomalto-oligosaccharide and different concentrations of yeast extract as humectant and to analyze the physiochemical and sensory characteristics of sugar-free sapodilla jam. Analysis of water activity (Aw), degree of Brix, 72h syneresis, chromaticity, and sensory evaluation was conducted. The increased addition of yeast extract, increase the lumpiness and grittiness of the product, decreases the water activity therefore decreasing the occurred syneresis and increasing the lightness (L*) of the product and simultaneously decreasing the Red (a*) and Yellow (b*) chromaticity. In the hedonic test, using a 7-point scale, 0.2% is more preferred when using yeast extract, while in the JAR test with 5-point scale, the sample with 0.3% yeast extract has fewer penalty in the penalty analysis.
Sensory characteristics of powdered-fiber drinks using CATA (check-all-that-apply) method
Authors: Cicilia  , Ervina E 
Published: June 2024

Abstract
Dietary fiber is crucial in the human diet. This nutrient has been reported to be able to prevent overweight and obesity by improving satiety levels. However, the intake of fiber remains low, and the use of fiber supplementation is recommended. Dietary fiber in the form of powdered drinks has been recently launched and become popular in the market with different types, flavors and brands. The objective of this study was to evaluate the sensory characteristics of powdered fiber drink products. Six commercial powdered fiber drink samples were selected representing the powdered fiber drink products that are available in the Indonesian market. The sensory characteristic was evaluated using CATA (Check-All-That-Apply) method by 121 consumers (mean age 20.3 ± 3.2-year-old). In addition, consumer acceptability was also measured. The results indicated that the fiber drink samples have different characteristics due to the different flavors. Fruity flavors such as berries, passion fruits, and citrus were preferred as compared to vegetable flavors, and this was significant for aroma liking (p=0.017). Interestingly, the addition of bird nests in the ingredient of the fiber drink did not influence the liking nor the sensory characteristics of the samples. This study can be used to develop a powdered fiber drink product with good acceptability by considering the sensory characteristics.
The effect of temperature and encapsulation on the stability of microalgae pigments
Authors: Widyaningrum D , Sadek N F , Cecilia D , Oktafika R A , Tedjakusuma F 
Published: June 2024

Abstract
Microalgae pigments are gaining interest in food industry applications as food additives by providing color and health benefits such as antioxidant properties. The pigment’s sensitivity to heat, pH, oxygen, and other conditions may reduce or lose its function in food products. Due to the sensitivity and instability of microalgae pigment, strategies are needed to protect and retain pigment from reducing their functions. Thirty-two research papers related to the topic published during 2012-2022 were employed in the review. This review focuses on astaxanthin from Haematococcus pluvialis, phycocyanin from Spirulina platensis, and β-Carotene from Dunaliella salina, as widely known microalgae pigments. This paper provides information about the effect of temperature during processing and storage on the stability of the pigments. Strategies to improve pigment stability by encapsulation were also discussed. The study concluded that temperature is one of the essential factors that affects microalgae stability. Furthermore, encapsulation may provide a potential solution to protect and maintain the stability of microalgae pigments.
Climate change impact assessment of various wastewater treatment facilities: A case study in Bandung City, Indonesia
Authors: Humaira ANS , Rahmah UA 
Published: June 2024

Abstract
Untreated wastewater discharge poses notable environmental and public health problems, among others the production of CH4, CO2, and N2O gas emissions contributing to climate change phenomenon. The implementation of wastewater treatment facilities can minimize the GHG emissions resulting from the effluent. However, different technologies and systems perform different results. Using the Life Cycle Assessment method of analysis, this study took Bandung City as a case study and selected the seven most common wastewater treatment facilities found in the city. The results showed that individual hybrid systems with the combination of the conventional septic tank, conveyance by septage truck, and sludge treatment in the Septage Treatment Plant (HS1) and individual on-site system with the conventional septic tank (OFS1) produced substantial global warming impact, resulting in 0.78 and 0.71 kg CO2 eq respectively per 1 m3 treated wastewater. This amount was sixfold that of communal on-site systems with biofilter tanks (OFS2) and 2-3 times larger than other remaining systems. On the other side, the system that produced the lowest amount of GHG emissions performed by OFS2 (0.11 kg CO2 eq).
The Effect of Built Environment on Carbon Emission from Travel Behavior in the City center of Surabaya
Authors: Handayeni K D M E , Anindya A I 
Published: June 2024

Abstract
Climate change is currently demanding attention due to global warming caused by increased Greenhouse Gas (GHG) emissions from the land transportation sector. The built environment is one of the factors that can influence non-motorized travel and emissions production. The built environment is identified using the 3D component approach (Density, Diversity, Design). The City center of Surabaya area is one of the Central Business Districts (CBDs) that is not exempt from emission issues and has the potential to decrease emissions through environmental arrangement scenarios. This research investigates the correlation between the 3D components and carbon emission production using the method of correlation analysis and multiple linear regression. The analysis results show a significant correlation between carbon emission production and the travel behavior of the city center of the Surabaya area community. Travel behavior variables influencing carbon emission production are household income, vehicles ownership, and travel distance. Furthermore, the study results indicate a significant relationship between travel behavior and the 3D components, as well as a significant association between the 3D components and carbon emission production. The 3D components that affect carbon emission production are population density, land use mix index, and pedestrian pathway density.
Towards a liveable city: Measuring the liveability index in Tuban Regency, East Java
Authors: Satiawan P R , Irawan S A R , Zahra S A , Novianti N F , Fatinaufa N , Azizah  , Fatmala E 
Published: June 2024

Abstract
A liveable city is an urban planning concept where the city as a public space focuses on the social life and the entire community. Tuban Regency is one of the regencies in East Java that intends to measure the liveability of its city. For the first experiment, the measurement was conducted before and after the pandemic (2020 to 2023). This research tries to measure the liveability index at the regency level. The measurement uses district data units to measure the regency liveability index achievement in more detail. The result shows that the rural area index is higher than the urban in terms of the environment, food security, housing and settlements, and accessibility/transportation.
Assessing community spirit: The psychosocial impact of major sporting events - A case study of the Jakarta e-Prix
Authors: Navitas P , Harun Ilman , Hidayat R 
Published: June 2024

Abstract
Nations that host mega-events such as the FIFA World Cup and the Summer Olympics reap numerous benefits. Key benefits include economic growth and development. Besides economic benefits, mega-events can benefit society. The Formula E racing series were founded in 2014 to advocate for sustainable practices and renewable energy. Jakarta hosts Formula E to demonstrate its green transformation. Despite increased scholarly interest in mega-events impact, there is little community-level research on mega-events’ social and physical capital impacts. It is crucial to capture and comprehend the enthusiasm and support of local communities to strategically enhance socio-economic systems and infrastructure. This study aimed to determine the psychosocial impact that hosting major sporting events have on the local populace. Data was collected using an online questionnaire that measured community pride and community attachment. This research found that mega sporting events appear to contribute to the development of community pride and community attachment. Furthermore, this study illuminated the benefits and constraints related to using panel surveys for the gathering of qualitative data.
Development of Gresik – Mojokerto Railway Infrastructure to Accelerate Economic Growth in Gerbangkertosusila
Authors: Susanti A , Rosdiana W , Dermawan DA , Widayanti A , Muhtadi A 
Published: June 2024

Abstract
The most important economic area in East Java is the Gerbangkertosusila (GKS) area. The GKS area between Gresik – Mojokerto is not yet connected directly, almost all goods have to go through Surabaya and Sidoarjo first. This results in high logistics costs and long travel times. The research method used in this research is a qualitative research method on economic growth factors in the GKS area. The factors considered in economic growth are population, number of people of productive age, number of people who are not yet working, minimum income/month, number of poorer people, percentage of poorer people, length of roads, number of people accessing the internet, number of telecommunication towers, length of roads damaged, investment value, export value, import value, and gross regional domestic product (GRDP). The analytical tool used in the research is a descriptive method to measure and assess the quality of economic growth and changes in regional economic growth factors, assisting strategic planning for the construction of new railway lines as the right solution for developing regional economic growth. Therefore, to accelerate economic growth and reduce logistics costs in the GKS area, a new railway line between Gresik - Mojokerto should be built. If logistics costs are low, it will reduce the price of goods and increase the opportunity to order goods and open up new jobs. If new job opportunities are opened, it will be possible to reduce the number of unemployed people by 375,392 people and the poorer population by 719,944 people. So it is hoped that it will increase economic growth to reach 7%. Only the Gresik and Sidoarjo regions have met this economic growth. Mojokerto’s economic growth is still 5.56% and lags behind other regions. If the construction of the new Gresik – Mojokerto train line is realized, then economic growth in the GKS region of at least 7% will not be difficult to achieve.
Measuring the achievement of the environmental pillar in Sustainable Development Goals – A case study of Tuban Regency, East Java
Authors: Umilia E , Irawan S A R 
Published: June 2024

Abstract
Sustainable Development Goals (SDGs) have become an important concept for urban development. The SDGs contain a set of indicators that are utilized to measure the readiness of the city to attain sustainable living. Despite the presence of detailed and technical indicators, the achievement of those indicators is still challenging. Tuban Regency in Indonesia, for example, has not adopted SDGs into its programs. This paper will measure the achievement of SDGs in Tuban Regency, particularly the environmental indicator pillar which is prone to be deserted in a rapid urban development. The study conducts a secondary data collection and quantitative analysis of the existing documents from each city stakeholder in the regency with. The study findings indicate that only 30.77% of the environmental goals have been attained by the Tuban Regency government, while 41.03% of the goals have not been achieved and 28.21% were not measured. This result indicates that more effort and intervention are believed to be needed to further support the implementation of SDGs.
Assessing Resident Satisfaction in Subsidized Housing in Indonesia: A case study of FLPP subsidized housing in Bekasi Regency
Authors: Lastiur C B , Septanaya I D M F 
Published: June 2024

Abstract
The Housing Financing Liquidity Facility (FLPP) program in Indonesia is designed to provide subsidized housing to Low-Income Communities (LIC) with the overarching goal of fostering homeownership. However, a burgeoning issue has emerged wherein these subsidized residences either remain unoccupied, are leased out, or undergo ownership transfers within a five-year period post-purchase. This research delves into the examination of resident satisfaction within FLPP-subsidized housing, a pivotal determinant potentially influencing residents’ choices to either continue residing or relocate. A survey encompassing 100 respondents was conducted in Bekasi Regency, a selected locale notable for its disproportionately higher concentration of FLPP-subsidized housing units compared to proximate areas surrounding Jakarta. Employing scoring methodologies for data analysis, our empirical findings reveal divergent levels of satisfaction among residents residing in different FLPP-subsidized housing estates in Bekasi Regency, ultimately reflecting an overarching sense of contentment. Nevertheless, certain facets of concern have surfaced, specifically pertaining to housing quality, accessibility, and public transportation. These specific areas assume critical significance, given their potential implications on housing affordability and overall habitability, thereby warranting targeted policy interventions. This study provides valuable insights into the efficacy of subsidized housing initiatives, shedding light on the determinants impacting resident satisfaction and subsequent housing-related decision-making processes.
Level of Climate Change-Related Coastline Change Case Study: East Coast Tourism Area of Surabaya, Indonesia
Authors: Bilhaq M D , Idajati H 
Published: June 2024

Abstract
The effects of climate change are most readily apparent in coastal regions, where rising sea levels have changed the coasts. Since several of the Surabaya Coastal Areas serve as tourist hotspots, this influence could lead to fewer visitors as a result of a decline in environmental quality. This study attempts to quantify the extent of coastal modification brought on by climate change in Surabaya’s popular tourism region along the east coast, Indonesia. The Digital Shoreline Analysis System (DSAS) extension tool in ArcGis is the technique employed. The information used is satellite picture data collected over a ten-year period. This study’s findings show that the shoreline has changed by 55.08 meters, which is the biggest amount. The subdistricts of Keputih Village, Wonorejo Village, and Medokan Ayu Village have the fastest rate of coastal change.
Introduction
Authors: Henderson Robert , McCready Elin 
Published: June 2024

Abstract
This chapter does three things. First, it lays out the questions that motivate a book-length treatment of dogwhistles, which range across linguistics and philosophy of language. We then quickly survey the previous literature on dogwhistles in the social science and philosophy of language literatures. Finally, we outline the main proposals of the work, most centrally, that dogwhistle communication primarily concerns social meaning, as understood by the field of quantitative, variationist sociolinguistics first pioneered by Labov (1963). In particular, we argue that dogwhistling arises out conversational agents’ reasoning about social meanings, and especially from conventional associations between linguistic expressions and social personas.