bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment and pre-assessment of compound hot and drought events over Yangtze River Basin
Authors: Mei Mei , Zhang Ying-Xian , Wang Guo-Fu 
Published: September 2024

Abstract
The severe compound hot and drought event (CHDE) in 2022 had serious impacts on water resources, agriculture, power supply, and ecosystems in the Yangtze River Basin (YRB). In this paper, we asked, have similar spatiotemporally overlapping compound events, like the one observed in 2022, occurred historically in the basin? And, if so, how can we pre-assess the impacts of such potential events on subseasonal timescales? To address these questions, regional CHDEs in the YRB since 1961 were systematically identified and comprehensively assessed using a modified intensity–area–duration technique and hazard assessment methods. Additionally, the subseasonal pre-assessment capability for CHDEs in the YRB using the China Meteorological Administration’s third-generation climate model prediction system (CPSv3-S2S) was demonstrated. A total of 140 CHDEs occurred during 1961–2022, with the 21st century showing a remarkably high risk of such events. Among these, 2022 was the most intense year, with the event from July 26th to August 30th being unprecedented in severity. CPSv3-S2S effectively forecast this event’s occurrence within a 1–25 lead days, particularly in pre-assessing its extensively impacted area and high-hazard centers in the upper and middle reaches of the main river course. This pre-assessment method serves as a valuable reference in decision-making to anticipate and mitigate the risks of hydropower supply shortages and heightened electricity demand during extremely high temperatures in upstream areas.
Spatiotemporal distribution of global wind erosion over the past four decades
Authors: Chu Zhaohan , Liu Maodian , Zhang Qianru , Cai Xingrui , Zhang Yanping , Hu Tao , Qiu Xinran , Huang Zhe , Wang Xuejun 
Published: September 2024

Abstract
Wind erosion is a critical environmental issue that degrades land and air quality, affecting global ecosystems, agriculture, and human health. Yet, on the global scale, the long-term spatial variability and controlling factors of wind erosion remain highly uncertain. Here, we develop a high-resolution spatiotemporal dataset of global wind erosion from 1980 to 2020 using the Revised Wind Erosion Equation model, integrated with comprehensive meteorological, terrestrial ecology, and soil datasets. Our analysis indicates that wind erosion annually impacted 359 ± 25 petagrams of soils worldwide during this period. Approximately 70% of this erosion occurred in just ten countries, predominantly in Africa and the Middle East. Due to higher erosion intensities, pasturelands, accounting for 28% of all non-barren land use types, disproportionately contributed to 70% of the erosion in these areas. Furthermore, our analysis highlights an upward trend in global wind erosion over the past four decades, with affected areas expanding worldwide. Although our study reinforces that changing wind speeds and a drier climate are central factors impacting global wind erosion, we find that increasing erosion intensities in pasturelands may also exacerbate erosion in North Africa, South America, and East Asia. This has broad implications for soil erosion issues that impact food productivity, human health, and ecosystem stability. This research provides insights for developing wind erosion warnings and targeted mitigation strategies, supporting global efforts to combat environmental degradation and promote sustainable development.
Flow of temporal network properties under local aggregation and time shuffling: a tool for characterizing, comparing and classifying temporal networks
Authors: Le Bail Didier , Génois Mathieu , Barrat Alain 
Published: September 2024

Abstract
Although many tools have been developed and employed to characterize temporal networks (TNs), the issue of how to compare them remains largely open. It depends indeed on what features are considered as relevant, and on the way the differences in these features are quantified. In this paper, we propose to characterize TNs through their behavior under general transformations that are local in time: (i) a local time shuffling, which destroys correlations at time scales smaller than a given scale b, while preserving large time scales, and (ii) a local temporal aggregation on time windows of length n. By varying b and n, we obtain a flow of TNs, and flows of observable values, which encode the phenomenology of the TN on multiple time scales. We use a symbolic approach to summarize these flows into labels (strings of characters) describing their trends. These labels can then be used to compare TNs, validate models, or identify groups of networks with similar labels. Our procedure can be applied to any TN and with an arbitrary set of observables, and we illustrate it on an ensemble of data sets describing face-to-face interactions in various contexts, including both empirical and synthetic data.
Effect of Water Quality Parameters on Total Bacteria Vibrio sp. in The Coastal Waters of Banyuwangi Regency
Authors: Setyaningrum Ervina Wahyu , Yuniartik Mega , Yuniari Shinta Hiflina 
Published: September 2024

Abstract
Banyuwangi coastal is used for several fishery activities consisting of fishing, and aquaculture. Vibrio is a type of saprophytic bacteria that lives in freshwater, sea water and soil. Water quality conditions affect the presence of Vibrio sp. bacteria. In the previous study, if the temperature and salinity values in the waters are getting higher, then followed by the amount of Vibrio sp. This study aims to determine the total Vibrio sp. and their relationship with water quality parameters. The method used is the descriptive method. The data analysis used is multiple linear regression analysis. Water quality consisting of phosphate, dissolved oxygen (DO), nitrit (NO2
−) and total organic matter (TOM) together has significant effect on the total Vibrio sp (Sig. < 0.05). Partial test results of water quality on total Vibrio sp. has a P-value of phosphate value of (0.245 X1), DO (0.103 X2), Nitrite (0.029 X3), and TOM (0.218 X4). The results of this test are known to be the value of nitrite variable Sig.0.029 (Sig.<0.05) which means that it has a significant effect on the total value of Vibrio sp. Based on multiple linear regression analysis, the regression equation is obtained which is Y = −19.534 X1 − 169.86 X2 + 26.68 X2 + 14.28 X3.
Catch and characteristics of Decapterus sp. fishing areas in The Southern Waters of East Java - Bali
Authors: Syah A F , Laksani M R T , Hatmaja R B , Nisa Z , Affandi R 
Published: September 2024

Abstract
One of the essential potential resources of small pelagic fish to the livelihood of fishermen is Decapterus sp. The purpose of this study was to examine the catch and features of the Decapterus sp fishing region in Indian Ocean waters from East Java to Bali. The fisheries data for Decapterus sp during 2019 - 2021 were provided by Ministry of Maritime Affairs and Fisheries, Republic of Indonesia. The chl-a, and SST data were downloaded from Copernicus Marine Environment Monitoring Service (https://marine.copernicus.eu/). The fisheries and environmental data were then grouped by season. The results showed that the highest catch per unit efforts (CPUE) value occurred during transition 2 season with value of 2.89 followed by west season with value of 2.65. The smallest value of CPUE occurred during transition 1 (1.98). In general, most of Decapterus sp were caught in SST range between 27 – 29°C and chl-a range between 0.1 – 0.3 mg/m3. These results can be used as a basis for management of Decapterus sp especially in southern waters of East Java - Bali.
The Effect Of Stocking Densities On Growth And Survival Rate Of Thai Mahseer (Tor Tambroides) During Nursery Stage.
Authors: Indra A N , Dewi N N , Mahasri G , Rahardja B S , Arifin O Z 
Published: September 2024

Abstract

Tor Fish are freshwater fisheries resources that have the potential to be found in Indonesia. Tor fish has been in high demand among entrepreneurs and the broader public. Tor tambroides (Sapan fish or Thai mahseer fish seed fish), Tor douronensis (Semah or Garing fish), Tor soro (Soro, Lempon, or Dewa fish), and Tor tambra are the four kinds of Tor fish native to Indonesia. Tor fish is a native indigenous freshwater fish from Indonesia that is on the verge of extinction. The Tor tambroides fish population in nature has declined and is on the verge of extinction as a result of widespread poaching for eating and trade as an ornamental fish. Thai mahseer fish seed fish cultivation activities include hatchery, nursery and enlargement. To protect populations of Thai mahseer fish seed fish from scarcity, Thai mahseer fish seed fish cultivation needs to do to prevent the scarcity of Thai mahseer fish seed fish in their natural habitat and Thai mahseer fish seed fish have high potential as freshwater fish in the aquaculture sector. This research aims to determine the impact of various stocking densities on growth and survival rates for Thai mahseer fish seeds, as well as the optimal density to support growth and survival rates. The study used a Random Design Complete (RDC) with four treatments and five replications. Feeding was provided ad libitum in the morning and evening. Given differences in the stocking density of Thai mahseer fish seeds, the results revealed a significant impact on all treatments. Treatment 1 had the greatest daily growth rate with a stocking density of 2 seeds/L and a yield of 0.015±0.003; specific growth rate. The highest absolute weight growth obtained was in Treatment 1 with a yield of 1.01gr; the highest absolute length growth obtained was in Treatment 1 with a yield of 2.9cm; and the highest survival rate for Thai mahseer fish seeds was obtained in Treatment 1 with a yield of 80%.
Correlation analysis of distribution channels with organoleptic quality of fresh milkfish (Chanos chanos) (case study at UPT Pasar Baru Gresik)
Authors: Fitriyansyah M R , Sahidu A M , Rahardja B S 
Published: September 2024

Abstract
Milkfish is a perishable food. Effective distribution management is needed to maintain the quality of fresh fish reaching consumers. The existence of markets has a very important function in the distribution of fresh fish. UPT Pasar Baru Gresik is one of the semi-modern traditional markets in Gresik Regency. The aim of this research is to determine the distribution channels for milkfish at UPT Pasar Baru Gresik and its correlation with the organoleptic quality of milkfish freshness. This research method is a case study. Data analysis of organoleptic testing results used the Kruskal-Wallis test method and the Mann-Whitney advanced test method as well as the Spearman’s rho correlation test and simple linear regression to determine the relationship between distribution channels and the organoleptic quality of milkfish. The results of the research show that the distribution channel and the organoleptic quality of milkfish show a negative correlation with a correlation coefficient value of -0.481, which means a moderate or sufficient correlation with an amount of 23.8%. The best organoleptic test results were milkfish which came from a single-level distribution channel with a value that met the minimum standard for fresh fish according to SNI, namely 7.0.
The effect of blood meal to induce aquaculture performance of striped catfish (Pangasionodon hypophthalmus Sauvage, 1878)
Authors: Hudaidah S , Santoso L , Varisco M D , Santanumurti M B 
Published: September 2024

Abstract
The high price of fish meal as feed is the main problem in cultivating striped catfish. The use of blood meal, waste from slaughterhouses, can be an alternative to improve aquaculture performance while reducing feed costs. This research aimed to determine the effect of using blood meal as a source of feed protein on the growth performance of striped catfish. The research design used was a Completely Randomized Design (CRD) consisting of five treatments and three replications. The treatments used were A (blood meal 0%, fish meal 100%) as control, B (blood meal 25%, fish meal 75%), C (blood meal 50%, fish meal 50%), D (blood meal 75%, fish meal 25%), and E (blood meal 100%, fish meal 0%). The results showed that the average body weight and specific growth in treatments B (8.25 ± 0.63b g, 3.51 ± 0.13b %/day) and C (8.26 ± 0.73b g, 3.52 ± 0.14b %/day) had the same performance as the control. It is concluded that blood meal can be substituted and combined with fish flour with a maximum composition of 50% to improve the performance of striped catfish aquaculture. Further research to increase the nutrition of blood meal must be conducted to improve the aquaculture performance of striped catfish.
Histology of skin, gill, liver, and kidney of tilapia Oreochromis niloticus exposed by azo dyes acid red 88.
Authors: Triastuti Juni , Luthfiyah Lailatul , Satriya Mutia Ganis Rahma Istimasita 
Published: September 2024

Abstract
Coloring is one of the main process in textile production. Using azo dyes type are the first pick of textile industries. Therefore, the disposal of dye waste containing high levels of azo can increase the toxicity level also impact the fish. Acid Red 88 is an azo type dye which provides a red color as the basic color for coloring textile products. Acid Red 88 are left behind as much as 60% of textile waste. the textile factories wastewater in Indonesia contains an average of 750 mg/L suspended solids. The aim of this study was to determine the effect of azo dye Acid Red 88 exposure to tilapia by the histology of its skin, gills, liver and kidneys. The method used was experimental method with 4 different exposure concentrations of Acid Red 88 P0 (0 mg/L), P1 (75 mg/L), P2 (150 mg/L), P3 (225 mg/L), and P4 (300 mg/L). The damage is identified on the histology of the organs and then measured using a scoring method. The results showed that several damages were found such as epithelial erosion, edema, hyperplasia, telangectasis, hemorage, fatty degeneration, congestion and necrosis.
Improving Bioelectricity by Optimizing the Use of Electrodes in Photosynthetic Microbial Fuel Cells Based on the Algae Scenedesmus sp. and Shrimp Cultivation Waste
Authors: Sa’diya Lailatus , Khansa Amatul Firdausy , Darsono Andarista Putri , Munawar Nurul , Abdillah Sulthon Yusuf , Mubarak Ahmad Shofy , Dewi Nina Nurmalia 
Published: September 2024

Abstract
Rapid economic growth and increasing electrical energy consumption have raised significant challenges to the provision of sustainable electrical energy. This research aims to examine the effect of variations in the population density of microalgae and the type of electrode (graphite and nickel) on the electrical voltage produced. This research was carried out experimentally using a randomized block design (RAK) consisting of 5 treatments and 3 repetitions. Electrical voltage data was taken every 60 minutes for 12 hours (6 hours of light and 6 hours of dark) for all treatments. The results showed that the use of different types of electrodes in the PMFC circuit did not affect the electrical voltage produced because both electrodes produced voltage electricity with a difference that is not much different, namely for graphite electrodes between 38.1 mV – 135.6 mV in the light phase and between 16.7 mV – 144.1 mV in the dark phase, while for nickel electrodes it is between 18.2 mV – 135.4 mV in the light phase and between 18.3 mV – 156 mV in the dark phase. Variations in population density of the microalgae Scenedesmus sp. used in the PMFC circuit have a significant effect (P<0.05) on the electrical voltage produced, namely in the light phase of treatment (P4) 2×107 it is 131.53 ± 25.12 mV for graphite electrodes and 137.90 ± 17.26 mV for nickel electrodes, while in the dark phase treatment (P3) 2×106 it was 168.70 ± 18.55 mV for graphite electrodes and 139.70 ± 27.35 mV for nickel electrodes.
The effect of different salt concentration in physical nature preparation of face scrub gel Caulerpa racemosa
Authors: Hurisyahrani R N , Alamsjah M A , Pujiastuti D Y 
Published: September 2024

Abstract
Facial skin that is often exposed to sunlight can experience a disturbance in the balance of the skin so that the skin’s moisture decreases and the skin becomes dry and dull and there is an accumulation of dead skin cells. Therefore, a treatment is needed to get healthy facial skin by using cosmetic preparations such as face scrubs as exfoliate cleansers. The use of Caulerpa racemosa seaweed in face scrub gel preparations is used as a producer of agar which acts as a gel former in face scrub gel preparations and the use of salt as a scrub which removes dead skin cells (exfoliating). The purpose of this study was to determine the effect of adding salt on the physical properties of the Caulerpa racemosa face scrub gel preparation. The results of the research that has been done shows that salt has a significant effect (p <0.05) on the physical properties of the Caulerpa racemosa face scrub gel preparation. Appearance of the Caulerpa racemosa face scrub gel for each homogeneous treatment. Specific gravity and viscosity values are close to SNI standards. The face scrub gel has a pH of 6 and does not cause irritation and based on appearance, smell and color parameters it shows the best results by adding 30% salt to the Caulerpa racemosa face scrub gel.
Proximate and Organoleptic Analysis on Campor Lorjuk (Solen sp) seasoning, a typical Madura Ingredient
Authors: Jannah A Z , Siswanto A D , Pratiwi W S W , Ramadhani A R , Efendy M , Kartika A G D , Nuzula N I , Asih E N N 
Published: September 2024

Abstract
Rich mineral sea salt is salt with a low NaCl content. The low NaCl content in salt indicates that the salt has a high mineral content. The minerals contained such as magnesium chloride, magnesium sulfate, calcium chloride, and other minerals. This research combined rich minerals sea salt with typical Madurese food named campor lorjuk seasoning and dried lorjuk as additional nutrition. Lorjuk in Madurese or better known as knife clams is a type of shellfish that has high nutritional value. The treatment applied to the Campor Lorjuk seasoning formulations was the difference in NaCl content for each formula. This research was conducted to determine the proximate content and to find out the seasoning results those consumers like most. The results showed that the highest protein content was in F1 with results of 7.62%, not significantly different from F3 but significantly different from control and F2. The highest water and ash contents were control which was not significantly different from F1, F2, and F3. The highest fat content was F2 and the lowest is control. The highest carbohydrate content is in control formula 68.35%, the lowest is F1 63.66%. The organoleptic test show that the formula that consumers like most is F3.
Growth of Vaname Shrimp (Litopenaeus vannamei) Infested with Extracts of Ectoparasites Chlorella vulgaris as an Immunostimulant
Authors: Astuti Endang Puji , Fauziah Naila Nur , Aisyah Dwi Cahya Wening DJ. , Mahasri Gunanti 
Published: September 2024

Abstract
Vannamei shrimp (Litopenaeus vannamei) has a high market demand, encouraging production to minimize stress, water quality degradation and disease attack. Ectoparasite attacks come from the genera Epistylis, Zoothamnium, and Vorticella. Body defense through immunostimulants from Chlorella vulgaris extract which has bioactive compounds, vitamins and proteins. The purpose of the study was to determine the effect of giving Chlorella vulgaris extract with different doses and length of maintenance, as well as the interaction of Chlorella vulgaris as an immunostimulant on the growth of vaname shrimp infested with ectoparasites. The research method used a complete randomized experimental design with a factorial pattern consisting of factor A, the dose of Chlorella vulgaris extract, namely without giving Chlorella vulgaris extract (A0), 400 mg/kg (A1), 800 mg/kg (A2), 1200 mg/kg (A3) and factor B, the length of shrimp rearing, namely 0 days (B1), 7 days (B2), 14 days (B3), 21 days (B4), 28 days (B5). This study uses three variables, namely independent variables administration of Chlorella vulgaris Extract and length of maintenance, bound variables Survival (SR), Specific Growth Rate (SGR) and Absolute Growth (GR) and Absolute Growth (GR), and control variables water quality (temperature, pH, dissolved oxygen, salinity, and ammonia). The results of the study at dose A2 with length of rearing B5 gave a real effect (p<0.05) on the growth of vaname shrimp infested with ectoparasites, namely survival (50%), specific growth rate (4,17%), and absolute growth (weight (1,39 grams), length (1,10 cm)).
A study on the influence of utilizing hydrogen at fuelling spark ignition engines
Authors: Georgescu R , Pană C , Negurescu N , Cernat A , Nuțu C , Sandu C 
Published: September 2024

Abstract
In the last 30 years, remarkable progress has been made in reducing pollutant emissions and fuel consumption in conventional internal combustion engines. Active and passive methods of reducing exhaust emissions have caused them to decrease significantly over the level of the 1980s. However, the problems of air pollution and the greenhouse effect are far from being solved. International organizations and institutions are pushing for measures to reduce emissions, especially the implementation of “zero-emission” (ZEV) vehicles. Due to its excellent combustion properties and the very low pollutant emissions resulting from its combustion, hydrogen is seen as an alternative fuel of the future. Hydrogen can be used as a fuel in two ways: in internal combustion piston engines or in fuel cells. Research into the use of hydrogen as a fuel for spark ignition engines is divided into two directions: additive fuel or a total gasoline substitution with hydrogen. Compared to the gasoline-powered engine, the fully hydrogen-powered engine runs more economically at low loads but it can create a decrease of performance at high loads due to the high volumes of space needed in the combustion chamber. Because of the very low density, high volumes of hydrogen are difficult to storage, requiring also high pressure, so running only on hydrogen wouldn’t be practical. Combining the advantages of the two fuels came the use of gasoline with addition of hydrogen. An important aspect is that emissions are significantly reduced due to the very good combustion properties of hydrogen and the high diffusivity that helps to form a homogeneous mixture. This paper presents aspects of fuelling a spark ignition engine with gasoline and hydrogen. The influence of hydrogen on the cylinder mixture, on the energy and emissions of the engine is analysed. We will focus on: engine power, fuel consumption, the level of pollutant emissions and greenhouse gases, at the studied regimes.
The effects of water injection inside an internal combustion engine regarding NOx emissions
Authors: Borborean A T , Stoica V , Llelea D 
Published: September 2024

Abstract
In this paper we present the influence of water injection on NOx emissions and the performance of a gasoline engine subjected under light to medium loads. The test bench used for measurements has a 4-cylinder, 1.6-liter engine and operates with a wasted spark configuration. Water is injected upstream of the throttle valve through a single injector mounted in the intake runner. The injection timing and amount of water injected inside the engine have been controlled by NI CompactRIO hardware device by the aid of an in-house algorithm implemented in LabView. Water is injected twice at each rotation of the crankshaft in order to have water in all cylinders. The injection of water is done at a fix angle, one time at 0°CA and the other at 360°CA, only the amount is varied from 10% to 45% of the total fuel fraction injected. The results showed that at an amount of water of about 25% of the total fraction of fuel injected, it produced a considerable decrease in NOx emissions, while keeping engine performance unchanged.