bluuebunny/crossref_metadata_2025_split huggingface dataset:
A receptive field transfer strategy via layer-aligned distillation learning for fault signal denoising
Authors: Pu Huaxiang , Zhang Ke , Li Haifeng 
Published: December 2023

Abstract
To improve fault diagnosis performance in complex noise environments, effective signal denoising techniques are necessary. However, traditional denoising methods have proven inadequate for multivariate fault signal denoising, neglecting the correlation among these signals. To this end, we propose a novel denoising module, inspired by traditional signal decomposition and reconstruction methods. Furthermore, to enhance the performance of proposed denoising module, we consider the influence of the receptive field and develop a receptive field transfer strategy using layer-aligned distillation learning. The experiments demonstrate that our approach effectively balances the denoising performance and computational load, offering a novel strategy for developing high-performance denoising networks. What’s more, our strategy reduces the difficulty for fault diagnosis tasks under complex noise environments.
A quantum fluctuation description of charge qubits
Authors: Benatti F , Carollo F , Floreanini R , Narnhofer H , Valiera F 
Published: December 2023

AbstractWe consider a specific instance of a superconducting circuit, the so-called charge-qubit, consisting of a capacitor and a Josephson junction that we describe by means of the BCS microscopic model in terms of two tunnelling superconducting systems in the strong-coupling quasi-spin formulation. Then, by means of collective observables we derive the Hamiltonian governing the quantum behaviour of the circuit in the limit of a large numberNof quasi-spins. Our approach relies on suitablequantum fluctuations, i.e. on collective quasi-spin operators, different from mean-field observables, that retain a quantum character in the large-Nlimit. These collective operators generate the Heisenberg algebra on the circle and we show that their dynamics reproduces the phenomenological one generated by the charge qubit Hamiltonian obtained by quantizing the macroscopic classical Hamiltonian of the circuit. The microscopic derivation of the emergent, large-Nbehaviour provides a rigorous setting to investigate more in detail both general quantum circuits and quantum macroscopic scenarios; in particular, in the specific case of charge-qubits, it allows to explicitly obtain the temperature dependence of the critical Josephson current in the strong coupling regime, a result not accessible using standard approximation techniques.
An introduction to edible Armillaria novae-zelandiae from Indonesia
Authors: Putra I P , Nurhayat O D , Sibero M T , Hermawan R 
Published: December 2023

AbstractThe majority study ofArmillariaglobally had been focused onA. mellea. The Indonesian data of genusArmillariaremains poor. During our fungus foray in West Java (Indonesia), some basidiomata ofsupa jambu(local name) consumed by the local people were collected. In the field, the specimens were morphologically identified asArmillaria. The present study was to confirm the species identity of our specimens based on morphological and molecular evidence. The fresh basidiomata were used for the examination. The combination of morphological and molecular analyses confirmed our specimen asArmillaria novae-zelandiae. Armillaria novae-zelandiaeFIPIA-DEP50 was identified by its viscid, thin, striate, honey-yellow pileus, semi-bulbous to bulbous stipe which darken to black with age towards the base. Spore moderately thick walled, ellipsoid, to elongate-ellipsoid, smooth with some internal structure.Armillaria novae-zelandiaeFIPIA-DEP50 is generally smaller in stature than the other closely related species (A.sparreiandA. hinnulea). The BLAST result revealed that our specimen exhibits 98% similarity toArmillaria novae-zelandiaeas the top hit. The phylogenetic tree nested our specimens withA. novae-zelandiaeclade (BS 100%) andA. melleaas its sister clade. The current study provides the first edibility information and herbarium collection ofA. novae-zelandiaefor Indonesia.
Genetic structure of Ilyoplax delsmani (Crustacea: Decapoda: Brachyura: Dotillidae) on the western Indonesian waters
Authors: Murniati D C , Nakano T , Asakura A 
Published: December 2023

Abstract
Estuarine crab disperses passively to different areas during their larval stage through sea currents. Ilyoplax delsmani, one of the estuarine crabs, is widely distributed in the Indo-Malaysia Archipelago. The present study aims to discern the genetic structure of Ilyoplax delsmani in the western part of Indonesia. Specimens were collected from three sites, i.e. one site in Kalimantan and two sites in Java Island. We analyzed the genetic structure of I. delsmani with COI gene using MEGA-X, DNASP v6.12.03, Arlequin v3.5.2.2., and Network v10.2. The constructed phylogenetic tree with MEGA-X with maximum likelihood (ML) using Kimura 2 parameter based on the COI gene revealed two distinct clades, i.e., Kalimantan_5133-Java_5135 as Clade 1 and Java_5136 as Clade 2. The genetic distance within the clade range from 0.2% to 2.2%, meanwhile the distance between the clades is approximately 19.3%–20.7%. Moreover, the haplotype network and FST
values calculated between pairs of localities generate a congruent result with the phylogenetic tree. Through calculation using MEGA-X, we estimate that the divergence time between both clades is approximately 42.49 mya, aligning with the middle Eocene period. Hence, we deduce that both clades represent distinct species.
Prey composition of six Nepenthes species in Pematang Gadung, West Kalimantan
Authors: Utari N , Sulistijorini  , Ariyanti N S 
Published: December 2023

Abstract

Nepenthes traps prey using its pitcher as an adaptation to thrive in low-nutrient habitats. This study aims to identify and analyze the composition of prey trapped in the pitchers of six Nepenthes species occur in Pematang Gadung. The preys were collected by purposive sampling from five pitchers of each species (N. ampullaria, N. bicalcarata, N. gracilis, N. mirabilis, N. rafflesiana and, N. x hookeriana) in two habitat types (peat swamp forest and heath forest). The diversity of prey trapped by Nepenthes was analyzed using Past Software Version 4.0. based on the Shannon index (H′) for each species and the Jaccard index to compare prey diversity between habitat types. A total of 1149 individual prey was collected, comprise seven orders of insects (Class Insecta) and one order of arachnids (Class Arachnida). The predominant prey was the insect of order Hymenoptera (85.90%), especially the family Formicidae. The other orders of insects were Diptera (10.36%), Coleoptera (1.48%), Blattodea (0.96%), Orthoptera (0.61%), and Hemiptera (0.09%). The order of arachnid was Araneae (0.61%). The most diverse prey was found in the pitchers of N. gracilis (H′= 0.79). The diversity of prey trapped by Nepenthes in both habitats has high similarity (JI = 0.71).
Occurrence and distribution of Badnavirus in six Piper species in Java
Authors: Hardiyanti S , Miftakhurohmah  , Sari M P , Wahyuno D , Bermawie N , Wahyuni S , Meilawati N L W 
Published: December 2023

Abstract
Badnavirus, a member of the Caulimoviridae family, is known to cause economic losses in various crops, including Piper spp. However, there is no information on Badnavirus infection in Piper spp. and its distribution in Java. The aim of this study was to determine the presence of Badnavirus in Piper spp and its distribution in Java. The research included field observation, sample collection, and virus detection by PCR. A total of 96 samples of Piper spp. were collected from West Java, Central Java and Yogyakarta Province. The degenerate primer Badna FP and RP were successfully used to amplify DNA fragments of 600 bp from leaf samples. Within the Java region, six species of Piper were identified, namely P. betle, P. crocatum, P. retrofractum, P. sarmentosum, P. cubeba, and P. colubrinum. These species were found in both Bogor and Bogor Regency. In Sleman and Magelang, P. betle, P. crocatum, and P. retrofractum were present, while in Yogyakarta only P. betle and P. crocatum were found. Five species of Piper were infected by Badnavirus, except for P. colubrinum, which remained free from infection. This research was proven that Badnavirus has infected members of Piper spp. and has spread throughout the Java Region.
Phoma spp. are causal agent of white leaf spot disease of ginger in Indonesia
Authors: Wahyuno D , Sari M P , Hardiyanti S , Miftakhurohmah  
Published: December 2023

Abstract
Leaf spot disease is a serious constraint on ginger cultivation in Indonesia. The disease is primarily caused by certain fungal species. Another species of fungus that has never been reported before in Indonesia was consistently isolated from the collected samples of whitish spot symptom from Bogor and Sukabumi, West Java. The present study is aimed to determine the fungal identity and confirmed its pathogenicity as well as exploring its characteristics. Leaf tissue isolation, morphological characteristic observation and molecular analysis for determining the fungal identity, a pathogenicity test, disease occurrence observation on red- and white-ginger, colony characteristic on four different media and its response on PDA medium amanded with 0 – 500 ppm of mancozeb or copper hydroxide had been carried out in the plant pathology laboratory of ISMCRI in Bogor. The fungus was identified as a group of Phoma based on morphological characteristic, homology and phylogeny analysis. The carrot agar medium is the best medium for growing and sporulation of the fungus. The disease incidence and severity occurrence were more severe on white-ginger than the red-one. Mancozeb inhibited the fungus growth more effectively than copper hydroxide, but 500 ppm is not inhibiting the fungal growth.
Study of plankton in Jakarta Bay and surrounding Java Sea: a comparison of community and water quality
Authors: Firdaus M R , Thoha H , Rachman A , Fitriya N , Sianturi O R , Intan M D B , Prayitno H B , Lastrini S , Bayhaqi A , Nasution A K 
Published: December 2023

Abstract
Jakarta Bay is a pivotal national water area in Indonesia, experiencing intense anthropogenic pressure from the surrounding lands. As a result, numerous scientists have conducted studies on the water of Jakarta Bay to observe marine life, including plankton. However, most studies have focused solely within the Jakarta Bay area, resulting in a lack of comprehensive ecological information beyond its boundaries. This study aims to bridge this gap by expanding the plankton investigation beyond Jakarta Bay. It focuses on the waters of the Java Sea that border it, while also examining their relationship with water quality. Plankton samples were collected in June 2019 at fifteen stations—eight located in the Jakarta Bay area and seven in the adjacent Java Sea. Water quality data, such as temperature, salinity, pH, and nutrient levels, were also gathered. The study revealed that phytoplankton abundance in Jakarta Bay was six times higher, and zooplankton density was 2.6 times higher than in the adjacent Java Sea. However, both phytoplankton and zooplankton diversity were slightly lower in Jakarta Bay compared to the Java Sea, though not significantly. Despite this, the study offers valuable new insights into the plankton community beyond Jakarta Bay.
Diversity of endophytic bacteria isolated from mangrove Bruguiera gymnorrhiza (L.) Lam.) and Rhizopora mucronata Poir. originated from Enggano island
Authors: Wibowo R H , Darwis W , Sipriyadi  , Fatimatuzzahra  , Adfa M , Sinaga L R , Simanjuntak P H C , Hidayah T 
Published: December 2023

Abstract
Endophytic bacteria are bacteria that live colonizing in plant tissues without causing harmful effects. Endophytic bacteria are found in the vascular tissues of plant, including mangroves (B. gymnorrhiza (L.) Lam. ) and R. mucronata Poir.). Mangroves have numerous advantages, one of them is as a medicinal plant. This study aims to obtain the diversity of endophytic bacteria isolated from Enggano Island mangroves (B. gymnorrhiza (L.) Lam. and R. mucronata Poir.). Endophytic bacteria were isolated using the grinding method through which the surface was sterilized with natrium hypochlorite and alcohol 70%. The obtained isolates were then identified in terms of morphological characters, Gram staining, and then biochemical tests. A total of 40 bacterial isolates were successfully isolated from the roots, stems, and leaves of both mangrove species. It was observed that 20 endophytic bacterial isolates were associated with mangrove B. gymnorrhiza (L.) Lam., while the remaining 20 isolates were from R. mucronata Poir. Based on morphological observation, Gram staining, and a series of biochemical tests, those 40 isolates were found to to be closely related with Bacilus, Micrococcus, and Pseudomonas. To conclude, B. gymnorrhiza (L.) Lam. and R. mucronata Poir. have a high diversity in endophytic bacteria.
Wildlife diversity and ecology for sustainable eco-edutourism in Peramun Hill, Belitung, Indonesia
Authors: Rianti P , Arisanti S , Sandika A M P 
Published: December 2023

Abstract
Peramun Hill, one of the sites in Belitong Geopark, Belitung Regency, has a unique land-cross section and is a sustainable tourism area, providing an ecosystem service to nature and local society. Therefore, carrying out wildlife diversity information can be the guideline for managing conservation and eco-edu tourism. This study aims to record wildlife biodiversity and its ecological function at Peramun Hill. We used the purposive sampling method and analyzed with richness index, diversity, Evenness, and Kruskal-Wallis’s test. We recorded 12 species of Pisces (fish), six species of amphibians, eight species of reptiles, 18 species of aves, and seven species of mammals. It includes the endemic mammalian species, Cephalophacus bancanus saltator, and a newly recorded reptile species, Cnemaspis purnamae. Two wildlife species are classified as data deficient, two are vulnerable, three are endangered, seven are critically endangered, and four are protected in Indonesia. These findings show that Peramun Hill has low species richness and is dominated by particular species in the entire habitat area. The various types of ecosystems in the area (primary, secondary, and agroforestry forest) might affect wildlife biodiversity. Therefore, biodiversity conservation must be managed, especially in ecosystem services such as sustainable tourism.
Reproduction characteristic of local sheep in North Sumatra Province, Indonesia
Authors: Tiesnamurti B , Febretrisiana A , Anwar A , Destomo A 
Published: December 2023

Abstract
In Indonesia, sheep farming is an important activity and contribute significantly to meat production and farmers welfare. This study aimed to evaluate the reproduction activities of sheep from several districts in North Sumatra Province. Data were analyzed using general linear model with body weight, body condition score and litter size as dependent variables, whereas the independent variables was location, breed, sex and age, respectively. The result showed that body weight was significantly influenced (P<0.05) by sex, age and location of the study with LS mean of 21.7 kg. The least square means of body condition score was 2.1 and there was significant contribution (P<0.05) of location, sex and age, respectively. The least square means of litter size from this study was 1.36, with the range from 1-3 and there was no significant influence (P>0.05) of location, breed and age, respectively. The higher proportion of ewes compared to ram, the availability young sheep as well as the pre-weaning lambs, indicating that mating, lambing and raising post weaning lambs occurred accordingly and not influenced by season. The plantation areas seem favorable for sheep development in the region.
Antioxidant, cytotoxic properties, and chemical constituents of soil Streptomyces spp. isolated from Muna Islands, Southeast Sulawesi, Indonesia
Authors: Prastya M E , Simbolon S , Priyanto J A , Yuswan A , Permatasari V , Primahana G , Dewi R T 
Published: December 2023

Abstract
Soil Streptomyces are filamentous Gram-positive bacteria which were the biggest producer of remarkable bioactive compounds with multiple biological roles. This study aimed to assess the antioxidant and cytotoxic activities of crude extract derived from 3 soil Streptomyces strains, namely APM-7, APM-11, and APM-21, which was isolated from Muna Islands, Southeast Sulawesi as well as profiling its compounds using gas chromatography and mass spectrometry (GC-MS). The results indicated that the ethyl acetate extract of APM-7 strain showed the most antioxidant potential with an IC50 value for both 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2’-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) of 31.61 and 57.91 μg/mL, respectively. Interestingly, this corresponding extract exhibited the highest total phenolic content (TPC) and total flavonoid content (TFC) values of 41.74 mg GAE/g extract and 32.51 mg QE/g extract. The cytotoxic effect of APM-7 extract (100 μg/mL) against human breast carcinoma cells (MCF-7) was found as having the best with the inhibition value of 81.31%. GC-MS analysis of APM-7 extract revealed 12 peaks which included some dominant compounds, including isophorone and Bis (2-ethylhexyl) phthalate which might be responsible for the antioxidant and cytotoxic properties. Our results indicate that the Streptomyces sp. strain APM-7 could be developed as medically useful compounds.
Characteristics and activity of SpmoB domain of particulate methane monooxygenase expressed in Escherichia coli BL21 (DE3)
Authors: Rusmana I , Karomah L , Akhdiya A , Suwanto A 
Published: December 2023

Abstract
Particulate methane monooxygenase is one of the methane monooxygenases of methanotrophic bacteria. The enzyme can convert methane to methanol in mild conditions. Cupredoxin domain recombinant protein (SpmoB) of particulate methane monooxygenase can oxidize methane to methanol. This protein was expressed in Escherichia coli BL21 (DE3) with Lac operon-based induction. SpmoB protein was isolated and refolded from the E. coli recombinant inclusion body. The pH and temperature dependence of SpmoB activity was also investigated to increase its activity. the SpmoB protein expressed by E. coli BL21 (DE3) is about 39 kDa. The SpmoB inclusion body was solubilized in 8 M urea followed by stepwise dialysis to get the active form SpmoB protein. The specific activity of the refolded protein was 0.46 methanol mg protein-1 min-1, which was higher than that of SpmoB from the previous study. The SpmoB was an acidic protein with the highest methanol production at pH six and a temperature of 30°C, which are higher than full-length pMMO. The SpmoB activity was stable at pH 6 to 8, and the Vmax and Km were 0.380 μM methanol s-1 and 44.27 μM, respectively.
Sonneratia sp. as a phytoremediator potential of selected heavy metal contamination on mangrove sediment along Selangor River in Peninsular Malaysia
Authors: Nyangon L , Gandaseca S , Wahid S A , Pazi A M M , Alias M A 
Published: December 2023

Abstract
This study aimed to examine Sonneratia sp as a potential plant for phytoremediation of selected heavy metal contamination of mangrove sediment in Peninsular Malaysia. Five stations were established along Selangor riverbanks under Sonneratia sp trees zone. Five sub-plots (2 m x 2 m) were established for samples collection each plot. Collected samples were prepared and analysed in the laboratory. There was a significant difference of selected heavy metal concentration on sediment and on Sonneratia sp (roots, barks and leaves) between five stations for Zn and Cr, while it was not significant difference for Cu, Pb and Cd. Bio-concentration Factors (BCF) also revealed the species ability to contain elements absorbed differed by vegetative parts where higher average accumulation occurred in leaves for Zn (0.363) and Cd (0.633), in barks for Pb (0.070) and Cr (0.396), while in roots for Cu (2.242). Translocation factor (TF) of Cr in barks was the most concentrated vegetative parts per elements measured in roots at ratio of 1.814 while the lowest was Pb in leaves at 0.515. Sonneratia caseolaris is a good vegetation for uptake the heavy metal from mangrove and can be recommended as a phytoremediation potential of heavy contamination of mangrove sediment.
Antifungal effect of Pseudomonas azotoformans UICC B-91 metabolites on hyphal growth of Trichophyton mentagrophytes
Authors: Pratiwi R H , Putri Y A , Mangunwardoyo W , Sufiandi S 
Published: December 2023

Abstract

Pseudomonas azotoformans UICC B-91 is known to have antimicrobial potential. The purpose of this study was to determine the inhibition mechanism of the metabolites of P. azotoformans UICC B-91 on the activity of Trichophyton mentagrophytes through morphological observations. The results showed that the metabolites produced by P. azotoformans UICC B-91 were inhibited growth of T. mentagrophytes. The zone of inhibition produced by the extract solution of P. azotoformans UICC B-91 against T. mentagrophytes at concentrations of 100 mg/mL and 80 mg/mL showed strong inhibitory power, with average values of 17.82 ± 0.32 mm and 10.79 ± 0.74 mm, respectively. The microscopic morphology of T. mentagrophytes after treatment with 0.1 g of ethyl acetate extract of P. azotoformans UICC B-91 showed wider hyphae compared to the control hyphae; abnormal cytoplasm; and granular structures between the hyphae, attached to the lateral side of the hyphae, and between the cell wall and the cell membrane. The mechanism of inhibition of the metabolites from the ethyl acetate extract of P. azotoformans UICC B-91 against T. mentagrophytes is thought to involve interference with cell walls and the function of the cell membrane.
Characteristic comparison of human induced pluripotent stem cell-derived adult and fetal β-like cells: a differential gene expression analysis
Authors: Dany F , Nikmah U A , Mariya S S , Panjaitan N S D , Rinendyaputri R , Sunarno  
Published: December 2023

Abstract
Differentiating human induced pluripotent stem cells (hiPSCs) into β cells for type 1 diabetes (T1D) management is a crucial step. Functionality characterization of hiPSC-derived β cells in some cases, however, only considers morphology and proliferation aspect without examining their distinct molecular properties. Thus, we aimed to investigate the difference between hiPSC-derived adult and fetal β-like cells by differentially expressed gene (DEG) analysis. We retrieved one Gene Expression Omnibus (GEO) dataset with the ID GSE70901 comprising 16 samples and GEO2RAnalyze menu performed the analysis. Network clustering was conducted through the STRING version 12.0, Cytoscape version 3.10.0, and CytoCluster 1.0 plugin by considering overall centrality parameters. Enrichment analysis was performed in DAVID 2021 and updated Enrichr tools. Two main clusters were each related to ribosome and carbohydrate metabolism. Enrichment results showed that some molecular pathways might contrast hiPSC-derived adult from fetal β-like cells, notably ribosome (p value <0.001). Cytoscape identified five significant subclusters with the densest one being ribosomal complex genes, such as RPS2, RPL5, and RPLP0 (p value <0.001). This in silico analysis provides insights into genetic signatures with their potential role in pancreatic β cell maturation, which should be validated in more thorough studies.