bluuebunny/crossref_metadata_2025_split huggingface dataset:
Full-duplex acoustic interaction system for cognitive experiments
with cetaceans
Authors: Rychen Jörg , Semoroz Julie , Eckerle Alexander , Hahnloser Richard HR , Kleinberger Rébecca 
Published: August 2023

Abstract
Cetaceans show high cognitive abilities and strong social bonds.
Their primary sensory modality to communicate and sense the environment is
acoustics. Research on their echolocation and social vocalizations typically
uses visual and tactile systems adapted from research on primates or birds. Such
research would benefit from a purely acoustic communication system to better
match their natural capabilities. We argue that a full duplex system, in which
signals can flow in both directions simultaneously is essential for
communication research. We designed and implemented a full duplex system to
acoustically interact with cetaceans in the wild, featuring digital
echo-suppression. We pilot tested the system in Arctic Norway and achieved an
echo suppression of 18 dB. We discuss the limiting factors and how to improve
the echo suppression further. The system enabled vocal interaction with the
underwater acoustic scene by allowing experimenters to listen while producing
sounds. We describe our motivations, then present our pilot deployment and give
examples of initial explorative attempts to vocally interact with wild orcas and
humpback whales.
Toward a multimodal and continuous approach of infant-adult interactions
Authors: Jover Marianne , Gratier Maya 
Published: August 2023

AbstractAdult-infant early dyadic interactions have been extensively explored by developmental psychologists. Around the age of 2 months, infants already demonstrate complex, delicate and very sensitive behaviors that seem to express their ability to interact and share emotions with their caregivers. This paper presents 3 pilot studies of parent-infant dyadic interaction in various set-ups. The first two present longitudinal data collected on two infants aged between 1 and 6 months and their mothers. We analyzed the development of coordination between them, at the motor and at the vocal level. The 3rd pilot study aims to explore interpersonal coordination in both vocal behavior and motor activity for one infant and his mother at 2, 4 and 6 months. These pilot studies however leave a number of questions open concerning developmental changes and infants’ progressive mastery of interaction. We identify areas worth examining and try to tease out specific issues that may help develop new methodological pathways for the study of early naturalistic social interaction. We assume that a continuous, rather than discrete, approach would better capture the changes taking place in the various communicative modalities, while also displaying each dyad’s specificity and the narrative dimension of social engagement between infants and caregivers.
Enhancement of non-Gaussianity and nonclassicality of pair coherent states by superposition of photon addition and subtraction
Authors: Chuong Ho Sy , Duc Truong Minh 
Published: August 2023

Abstract
Pair coherent states (PCSs) as a kind of two-mode non-Gaussian and nonclassical states were introduced and studied. Some nonclassical characteristics of them such as two-mode sum-squeezing, two-mode antibunching, and entanglement have been well investigated. In this paper, we focus on studying the superposition of photon addition and subtraction to the PCSs called superposition of photon-added and photon-subtracted pair coherent states (SPAPSPCSs). Our main purpose is to show that the non-Gaussian feature and all the above-mentioned nonclassical properties of the SPAPSPCSs can be enhanced compared with the photon-added-and-subtracted two modes pair coherent states (PAASTMPCSs) and the original PCSs. In general, we demonstrate that the SPAPSPCSs have more enhanced non-Gaussian character and nonclassical properties than the PCSs and the PAASTMPCSs by examining the negativity of the Wigner function. Specifically, we indicate that both the SPAPSPCSs and the PAASTMPCSs can exist in two-mode sum-squeezing while the original PCSs (without photon-addition and photon-subtraction) cannot, and the degree of squeezing is stronger in the SPAPSPCSs than in the PAASTMPCSs. The obtained results also indicate that the superposition of photon addition and subtraction of the SPAPSPCSs plays a vital role in enhancing the two-mode antibunching property and the entanglement degree compared with the PCSs and the PAASTMPCSs.
The Effect of Combination of Coconut Water (Cocos nucifera) and Shallot Crude Extract (Allium cepa L.) on the Growth of Caulerpa racemosa
Authors: Ghani Puspahati Kurnia , Harwanto Dicky , Amalia Rosa , Windarto Seto , Haditomo Alfabetian H. Condro , Nurhayati Dewi , Susilowati Titik 
Published: August 2023

Abstract

Caulerpa racemosa (sea grape) widely known to the public as highly nutritious food ingredients whose availability only relies on nature. This resulted in the production of C. racemosa which was not continuous. One way to increase the production of seaweed seeds was by soaking the seaweed seeds in growth hormone. Natural growth regulators are found in many plants, such as coconut water and shallots, which contain the hormones cytokinin and auxin, respectively. This hormone is able to grow stems and roots if used in the right dosage. The treatments were soaking for 0 minutes (A), 30 minutes (B), 40 minutes (C) and 50 minutes (D). Seeds used as much as 600 g. Rearing was carried out for 30 days in a concrete pond filled with substrate in the form of sandy mud and sea water. The data obtained during the study included morphology, absolute weight growth, specific growth rate (SGR) and water quality. Data analysis with ANOVA and Duncan’s test was performed. Soaking C. racemosa in a combination of 25% coconut water and 10% crude extract of shallots for different lengths of time gave significantly different results (P<0.05). Treatment C showed the highest yield with absolute weight growth value of 214.33±9.4g. Water quality parameters within the appropriate range for the growth of C. racemosa.
Effect of Indian Pluchea Leaf (Pluchea indica) addition on feed-on growth performance and survival rate of Litopenaeus vanname
Authors: Linayati L , Nailal Khoiri M , Yusufi Mardiana T , Zulkham Yahya M 
Published: August 2023

Abstract
This study aims to determine the effect and the best dose of Indian Pluchea leaf extract on artificial feed on the growth performance and survival rate of Vanname. The sample of this study was shrimp aged PL 21 obtained from shrimp farmers in Pekalongan. The study employed an experimental method with a completely randomized design (CRD) with 4 (four) treatments with 3 (three) replications, A (Indian Pluchea leaf extract of 0 ml/kg feed), B (Indian Pluchea leaf extract 5 ml/kg feed), C (Indian Pluchea leaf extract 10 ml/kg feed), D (Indian Pluchea leaf extract 15 ml/kg feed). The addition of Indian Pluchea leaf extracts to feed had a very significant effect on the growth of vanname. The best dose was in treatment D with a growth of 5.61 grams, FCR (feed conversion ratio) around 1.17 and SR (survival rate) 100 %. The water quality parameters were found during the observation: temperature of 29-32°C, the salinity of 20-25 ppt, and pH of 7.8 - 8.2.
Orange mud crab (Scylla olivacea) exploitation at Sorong waters
Authors: Pane A R P , Mardlijah S , Widiyastuti H , Fauzi M , Noegroho T , Hidayat T , Zamroni A 
Published: August 2023

Abstract
Mangrove forests along the vast coast of West Papua serve as the habitat for mud crabs, which are high-value economic resources marketed to various regions in Indonesia. However, intensive utilization impacts the sustainability of mangrove crab populations, especially orange mud crabs (Scylla olivacea). Exploitation studies need to be conducted for further use to manage crab resources. This study was conducted for six months, from April to September 2021, with a sample of 2,971 orange mud crabs. Data analysis was carried out using crab carapace width (CW) data to predict resource exploitation and sustainability. The caught orange mud crab size was 80-190 mm, with natural mortality (M) lower than fishing mortality (F). The exploitation of this crab has attained E = 0.72, which proves that overfishing. We can do the management of orange mud crabs by observing the size of mature gonads and spawning areas to provide an opportunity to increase the population in the waters.
Analysis of the Suitability of Using Logbook and Implementation of Fishery Vessel Monitoring System Policies through Operational Distribution of Purse Seine Vessels in Benoa Public Port
Authors: Muktitama M T , Kurohman F , Setyawan H A 
Published: August 2023

Abstract
Using logbooks and VMS data will significantly determine the sustainability of fisheries governance in Indonesia. This research aims to analyze the feasibility of using the logbook as the primary management data, the VMS as the main fisheries surveillance data, and the applicable policies actual conditions. The results showed a difference in the suitability of the number of ships recorded between the logbooks and ship inspection results from 2019 to 2021. The usefulness of helpful ness times between the logbooks and VMS in 2019 to 2021 is 22%, 34%, and 69%, and departure times are 23%, 37%, and 76%. The suitability of fish catch areas based on VMS ship inspection results has been recorded to have increased from 2019 to 2021. In addition, the spatiotemporal analysis of processed VMS data can clearly describe the distribution pattern of ship density and can be used to suspect fraudulent practices. It can be concluded from this research that the use of logbook analysis as a recommendation for policy formulation has yet to be able to run optimally, and applicable policies can use VMS.
Indirect Economic Value of Mangrove Ecosystem in the North Coastal of Sikka Regency in Disaster Mitigation
Authors: Bhokaleba B P P W , Erfin  , Utami P B 
Published: August 2023

Abstract
The earthquake disaster history in the Nusa Tenggara region recorded above 7 SR followed by tsunami happens in several locations such as Maumere, Alor, and most recently in Larantuka. Due to this history, community understanding is needed in the mitigation of disasters’ impact. Therefore, this research aims to identify the economic value of the mangrove ecosystem as an area that protects coastal communities from tsunami disasters. The analysis used was willingness to pay (WTP) and willingness to accept (WTA). The WTP value was analyzed from 3 different perspectives such as the perspective of the people who experienced the tsunami disaster in 1992, the perspective of the local government and other institutions responsible for the disaster, and the perspective of people who did not have experience with tsunami disasters. Meanwhile, the WTA assessment was conducted on the manager of Magepanda Mangrove Area. Respondents consisted of 35 residents who experienced the tsunami disaster, 35 residents who never experienced the disaster, 20 respondents from Regional Apparatus Organizations and other stakeholders, and 5 mangrove managers in Reroroja Village, Magepanda sub-district. The WTA calculation indicated that the three stakeholder institutions experienced significant changes in positive externalities, and 60% of respondents chose to receive compensation funds for these positive externalities. Meanwhile, the 40% was in the form of infrastructure development/repairment. Interestingly, the WTP average of respondents who experienced a disaster and respondents who did not experience disaster was not very significant, namely $ 0.81 and $ 0.57. This was caused by 48% of respondents who never experienced a tsunami disaster, who had already known the impact caused by the tsunami, and 86% already known the ecological function of mangrove forests. Thus, these two things encouraged them to provide high value for the mangrove ecosystem. WTP given by policymakers had an average value of $1.86. The perspective of respondents in providing the value was very realistic because 95% of respondents had ever seen the mangrove ecosystem condition in Magepanda.
Study of Sediment Distribution in Tanjung Pasir Banten Based on Bed Load Data
Authors: Rachman R A , Armono H D , Wibowo M , Istiyanto D C , Widagdo A B 
Published: August 2023

AbstractThe Tanjung Pasir waters area in Tangerang is a pilot project where a sea dike (WLP-Waduk Lepas Pantai) will be built, which doubles as a sea wall and as a raw water provider for the Tangerang Regency and surrounding areas. In planning WLP coastal buildings, one of the main problems is the presence of siltation due to sedimentation caused by sediment transport. This process is closely related to the sediment distribution from the bed load. So far, there have not been many studies on sedimentation in Tanjung Pasir waters, so as an initial study, an analysis of sediment distribution was carried out. This study aims to the mechanism of sedimentation distribution based on grain size data from bed load to support the National Capital Integrated Coastal Development (NCICD) WLP development plan. The methods used in this study are sediment sampling in the field, laboratory analysis, and descriptive analysis to describe the relationship between the phenomena studied and the bathymetry and current factors that occur in Tanjung Pasir waters. Based on the results of this study, it is known that the grain size of the bed load ranges from 0.085 mm - 2.0 mm. The sediment type consists of two kinds, namely sand, and silt mixed with quite a lot of shellfish. The type of sediment seen from the value of d50 consists of very fine sand, fine sand, medium sand, and silt. It was dominated by very fine sand. Bathymetry has a depth of 1 m-20 meters, there is no significant relationship between bathymetry and bed load grain size. The current speed is 0.24 m/s with the dominant current direction east to southeast, belonging to the fast current category, there is a close relationship between the current speed and the distribution of sediment sizes where coarse-grained deposits are deposited in areas with fast current speeds. The speed of this current affects the process of transporting, depositing, and distributing sediments.
Prototype of simple mini-wave gauge using Microcontroller ESP32 on the laboratory scale
Authors: Widiaratih Rikha , Suryoputra Agus Anugroho Dwi , Handoyo Gentur , Satriadi Alfi , Putranto Ari Bawono 
Published: August 2023

Abstract
The limited availability of real-time wave data is needed for shipping safety and for planning coastal areas. This wave data monitoring system including the wave height and direction gained to be used as a consideration in making decisions related to shipping safety and coastal management. This study aims to design and create a prototype of a simple mini-wave gauge and test the performance of a mini-wave gauge on the laboratory scale. The sensors used in this mini-wave gauge were ADXL335 as a vibration sensor to detect wave movement and the GY-271 sensor module with the HMC5883L chip which was a direction sensor. In the experiment, the wave data generated by the sensors were then received by the microcontroller ESP32 as a data processing center. The wave data was then received by the computer using a Wi-Fi network as well as processed and displayed on an application that had been developed using Embarcadero Delphi. Experiments with this mini-wave gauge resulted in an average range of wave height ± 6cm with a wave trough of -4.5 cm and a wave crest of 2.2 cm. This mini-wave gauge was then validated with the ultrasonic sensor at laboratory scale and the root mean square error obtained was 1.34 cm. Generally, this device functions well and has high accuracy for recording wave data.
Effectiveness of liquid smoke as a preservative agent of barracuda fish cake during cold storage
Authors: Febriani Y , Swastawati F , Sumardianto  , Fahmi A S , Romadhon  
Published: August 2023

Abstract
Barracuda is one species of white fleshed fish that has a soft texture and a savoury taste, therefore it can be processed into fish cakes. Fish cake is a perishable food caused by bacterial activity that can be prevented using preservative namely liquid smoke. The addition of liquid smoke can provide an extended shelf life and a unique taste sensation in fish cakes because it functions as an antibacterial. The purpose of the study was to determine the role of liquid smoke in increasing the shelf life of fish cake and its effect on the value of consumer preferences. The research method was carried out by experimental laboratories using a Split Plot in Time experimental design. Fish cake was made by adding 5% liquid smoke to the water used to steam barracuda fish cakes, then stored at 4-5°C for 12 days (0, 4, 8, and 12). Barracuda fish cakes were analyzed for phenol content, water content, TPC, TVB-N, amino acid lysine and hedonic test. The results showed value of a phenol content 27.38 ± 1.54 mg/100g, a moisture content of 67.75 ± 0.11 %, the value of TPC was 1.8x104 ± 0.21 cfu/g, the TVBN value was 14.53 ± 2.73 mgN/100 g, the amino acid content of lysine was 3.5 ± 0.04 mg/g, and the hedonic value was 5.67. The use of 5% liquid smoke could increase the shelf life of barracuda fish cake. Fish cake with the addition of 5% liquid smoke after 12 days were preferred by consumers because of their little mucus, unique taste typical of smoked fish, and chewy texture. The use of liquid smoke was able to maintain better quality than control after the storage of barracuda fish cake for 12 days.
Algicidal Potential of the Endosymbiont Bacterial Consortium of the Seagrasses Enhalus acoroides and Thalassia hemprichii
Authors: Setiabudi G I , Prasetia I N D , Antara K L , Sitepu G S br. , Amelia J M , Maharani M D K 
Published: August 2023

AbstractThe isolate is the consortia of endosymbiont bacteria isolated from the seagrassesE. acoroidesandT. hemprichii. The two isolates of these bacterial consortia can inhibit the growth of the dinoflagellatePorphyridiumsp. The algicidal activities of the two consortia are 94.1% and 92.8%, respectively. However, the values of BG plankton culture are lower; they are 57.1% and 48.6%, respectively, which shows that the algicidal activities of the consortia of seagrass endosymbionts of dinoflagellate group are very good and good. The performance of algicidal activity of diatom group is relatively effective as forNitzschiasp., ranging from 44.9% to 52.6%; however, the performance of algicidal activity of another diatom group is very low, which shows that the endosymbiontE. acoroidesandT. hemprichiican be used as algicidal source. In general, the algicidal activity of the endosymbiont-bacterial consortium of theEhEdisolate is stronger than that ofThEdin the target dinoflagellate group. This fact makes it possible to use the endosymbiont bacterial consortium as a bio-agent that can overcome the so-called algal bloom phenomenon affecting the dinoflagellate group in general andPorphyridiumsp. and BG culture.
The activity of spiked pepper fruit essential oil against fall armyworm larvae
Authors: Lina E C , Hidayatullah M S , Nurbailis  , Reflin R , Nelly N 
Published: August 2023

AbstractSpiked pepper (Piper aduncum) essential oil has the potency to develop as a botanical insecticide in controlling fall armyworm (Spodoptera frugiperda). This study aimed to determine the activity of spiked pepper fruit essential oils against fall armyworm larvae. This study was held from November 2020 to March 2021 at the Insect Bioecology Laboratory, Faculty of Agriculture, Andalas University, West Sumatera, Indonesia. The experiment used a Completely Randomized Design (CRD), including preliminary and advanced tests. The preliminary test was conducted using three concentration levels (0%, 0.25%, and 0.5%) and consisted of 4 replications. The advanced test was conducted using 5 concentration levels and control (0%, 0.05%, 0.07%, 0.11%, 0.17% and 0.25%) and consisted of 5 replications. The test ran with the leaf-dipped method, with parameters observed were larval mortality, feeding inhibition activity (antifeedant), and larval development time. The observation data were analyzed using analysis of variance, and if there were any significant differences, it continued with a further test using Least Significant Difference (LSD) at a 5% level. LC50and LC95values were analyzed using the POLO PC software. The result showed that spiked pepper fruit essential oil could cause larval mortality, inhibit feeding activity, and inhibit Fall armyworm larval growth. The treatment with a concentration of 0.17% showed the best result, which could lead to 98.67% larvae mortality, inhibit feeding activity by 91.23% and inhibit larvae growth from reaching the sixth instar around 3.26 days compared to the control. The LC50and LC95value of spiked pepper fruit essential oil solution was 0.068% and 0.151%, respectively. Overall, spiked pepper essential oil has insecticidal activity against fall armyworm larvae.
Principal Component and Cluster Analyses of 20 Genotypes of Chilli (Capsicum sp.) Planted on Peatlands
Authors: Deviona  , Syukur M , Zuhry E , Armaini  , Yunandra  , Riska F 
Published: August 2023

Abstract
This research aims to obtain information about the qualitative and quantitative characteristics of the genetic diversity of 20 chili genotypes and to analyze their similarity as the basis for selecting parental crossbreeds in peatland assembly chili varieties. This research was conducted in the peatlands of Tuah Karya Village, Tampan District, Pekanbaru City, Riau Province and analyzed at the Plant Breeding Laboratory of the Faculty of Agriculture, Riau University from November 2020-April 2021. The study used a randomized block design consisting of 20 genotypes (Agronomy and Horticulture IPB University’s collection) with three replications, so there were 60 experimental units. There are 22 qualitative characters and 13 quantitative characters identified. Qualitative data was transformed into quantitative data based on International Plant Genetic Resource Institute (IPGRI) and quantitative data was the average data. Principal component and cluster analyses were conducted using SPSS Statistics 20 software. Results show that large chili plants based on principal component analysis and cluster analysis were grouped into four clusters at level of similarity 82.5% and a proportion of diversity of 57.53%. The closest similarity of large chili is CG4 and CG6. Based on the principal component analysis and cluster analysis cayenne pepper plants are grouped into two clusters at a 90% similarity level and 72.80% diversity proportion. The closest similarity of cayenne pepper is CG16 and CG19.
Effects of different tea manure on growth and yield of selected chilli pepper (Capsicum annum) varieties under DEBESMSCAT Masbate Condition, Philippines
Authors: Borres Eligio C. , Loraña John L. , Lachica Jessa C. , Ros Maryjean A. 
Published: August 2023

Abstract
The study used 3 x 4 factorial experiment in RCBD. Factor A (variety) used V1-Django, V2-Vulcan and V3-Sinigang. T1-control, T2-100 ml cattle manure tea, T3-100 ml chicken dung tea, and T4-100 ml vermi tea were used in Factor B (a different tea). The results showed that tea manures had no effect on plant height, leaf length and width, and fruit length. The interactions of both factors were also not significantly affected. All the tea manures gave similar responses in terms of plant height, size of leaves, and length of fruit. Application of different tea manures had a significant response in varieties in terms of number of leaves, but no significant effect in the interactions of all the factors. The number of fruits, length and diameter, and total yield were not significantly affected of both factors A and B. However, significant findings were found in the number and diameter of fruits, and total yield in the interaction of block and variety. Based on cost and return analysis, V1 gave the highest net income of ₱ 858.33 in three harvests and an ROI of 33.585%. Django chilli variety is recommended and used of chicken dung tea for organic chilli pepper production.