bluuebunny/crossref_metadata_2025_split huggingface dataset:
Predictive Models for Bond Strength of Reinforced Concrete with the Application of ANN
Authors: Singh Priyanka , Bera Payel , Bhardwaj Saurav , Singh S K 
Published: December 2021

Abstract
The bond strength of grip b/w steel and concrete can be defined as the resistant to separating concrete or mortar from the reinforced bar. This bond strength is the most critical characteristic of reinforced-cement concrete. Structural performance depends upon this characteristic, especially in the failure phase. Bond strength is primarily dependable on many variables that affect this attribute. These variables include the diameter of the reinforced steel bar, bond extent, length to diameter ratio, cube compressive strength, concrete cover, cover to dimeter ratio, volume fraction and most importantly, different temperatures. Up to 150°C, there is no such change in bond strength of reinforcement concrete, but when the temperature rises beyond 150°C, it starts to decreasegradually. We have collected experimental data from the internationally published record. This study will see the change in bond strength at these temperature variations i.e., 200°C, 400°C, and 600°C. This observational study will represent a soft computing tool, i.e., an Artificial Neural network (ANN), to predict and measure the grip strength between concrete and steel bar at elevated temperatures. The bond strength of reinforced concrete has been predicted by using ANN Models. Data set based upon the different factor that affects the bond strength has been used as input for generating ANN model & ultimate bond strength of reinforced concrete has been used as output during the development of the ANN model. This model was then prepared to predict bond strength and affected by many input features and recorded a linear regression analysis. The predicted result then confirmed the accuracy and high estimation capability of the model.
Crop selection in dryland of North Lombok Regency: farmers search for more money and less risk
Authors: Sjah T , Budastra I , Tanaya I G L P , Halil  
Published: December 2021

Abstract
Dryland areas of North Lombok can be grown with a variety of crops and provide alternatives for farmers. This paper aims to: (1) identify farmer selection of crops in dryland areas of North Lombok Regency, Indonesia; (2) analyze farmer decisions in selecting the crops in the area. Results of this study can become the basis for developing agriculture in the area or other areas of similar conditions. Data were collected through surveys to sampled farmers in the dryland areas of North Lombok, with the focus of questions on farmer reasoning following their crop selection. Such an approach is guided by qualitative research principles, highlighting the importance of understanding and meaning of topics investigated. The surveys revealed that in dryland areas of North Lombok grew corn, rice (of dryland type), peanuts, long beans, chili, tomatoes, and cassava. Corn is a dominant crop among farmer choices. In their farming activities, farmers did not select soybean, one of the targeted crops. Farmer reasons behind crop selection directed to the conclusion that farmers in dryland areas of North Lombok are rational, in which they aim to generate high income from their activities and at the same time attempt to reduce risks associated with the chosen crops. This study results imply the importance of understanding the motivations of growers as the primary stakeholder in implementing farming.
Effectiveness of snap traps on capturing rodent and small mammals in rural area of two provinces (Yogyakarta and West Java) in Indonesia
Authors: Herawati N A , Purnawan T 
Published: December 2021

Abstract
The study was conducted to determine the effectiveness of snap traps on capturing the rodents and small mammals in two provinces (Yogyakarta and West Java). A small rural area surrounded by large scale ricecrops which indicate rodent damage seasonally was selected as the study site. The trappings were executed during the period of November 2018 – August 2020. Consecutive trappings were performed in two regions using snap traps baited with fresh salty fish and roasted coconut. Around 40-65 traps were set in West Java study sites and 60-65 traps in Yogyakarta for every single trap night, respectively. We checked the captured animals in the early morning and collected them for identification and sexing. In the late afternoon we continued with cleaning of the traps and put in the new same type of bait. A total of 517 animals were obtained with the proportion of the two sexes was almost the same (45.45% males:54.40% females). Based on the physical characteristics, those captured animals were three rodent species (Rattus argentiventer, Rattus tanezumi, Bandicota indica) and one species of insectivore (Suncus murinus). Regarding trapping rate of success, Yogyakarta denoted average values (21.38% in the first trapping and 26.04% from the second trapping) compared to West Java which was only accounted for half of them (11.31% and 11.24% from the first and second trapping, respectively). The heterogeneous habitat configuration probably allowed this situation to occur in Yogyakarta. Moreover, rodent control activities in West Java were implemented more intensively compared to Yogyakarta.
Analysis of leaf chlorophyll content of paddy plants during vegetative stage grown in soil media containing macroalgae organic fertilizer
Authors: Kurniawan N S H , Kirana I A P , Abidin A S , Jupri A , Widyastuti S , Hernawan A , Nikmatullah A , Sunarpi H , Prasedya E S 
Published: December 2021

Abstract
Chlorophyll is a green pigment in leaves that functions to absorb light energy for photosynthesis. The value of chlorophyll concentration in leaves indicates the health status of a plant and healthy plants will produce more fruit. The purpose of this study was to determine the effect of chemical fertilizer (CF) and solid algae fertilizer (SAF) with different doses on the concentration of chlorophyll in paddy leaves. This research is important to do to determine the potential of macroalgae in reducing the dose of chemical fertilizer use in agricultural activities. In this study, paddy plants were given four different treatments, namely control (without CF and SAF); 100% chemical fertilizer (CF); 100% solid algae fertilizer (SAF); 50% chemical fertilizers and 50% solid algae fertilizers (CF+SAF). Each treatment consisted of ten pots. The results showed that the administration of SAF in the form of a combination of SAF 50% and CF 50% had a significant effect on the increase of chlorophyll b content of the leaves of paddy plants. However, there were no significant difference in chlorophyll a content between CF and CF+SAF group. Current results show that addition of SAF could potentially increase growth quality in paddy plants due to the increase of chlorophyll b content which absorbs higher frequency of blue light for photosynthesis.
Multi-response optimization of cellulose fiber isolation from tapioca solid waste and its characteristics
Authors: Arnata I W , Harsojuwono B A , Hartiati A , Gunam I B W , Anggreni A A M D , Sartika D 
Published: December 2021

Abstract
The tapioca-based starch industry produces solid waste in abundance that has not been used optimally, especially the cellulose fraction. This study aimed to optimize the H2O2 concentration and the process temperature of cellulose fiber isolation from tapioca solid waste. Statistical regression modeling and optimization of H2O2 concentration and process temperature using the response surface methodology. A central composite design (CCD) was applied for experimental design and analysis of the effect of H2O2 concentration and process temperature on multi-response characteristics of cellulose, consisting of whiteness index (WI), yield, and α-cellulose content. Cellulose fibers were characterized, including surface morphology, crystallinity degree, and thermal stability. The results showed that the H2O2 concentration and process temperature were significantly affected by WI, yield, and α-cellulose content. The maximum WI, yield, and α-cellulose content were 63.99%, 65.73% (w/w), and 78.31% (w/w), respectively, obtained from H2O2 concentration of 22.62% (v/v) and process temperature of 93.51ºC. This cellulose has a relatively coarse fiber formation, with a high degree of crystallinity and thermal stability. Thus, cellulose from TSW might have a potential to be applied in broader fields.
Effect of antimicrobial addition from lime extract on edible film as food packaging
Authors: Pudjiastuti L , Sugianto N N , Hamzah A , Zuchrillah D R , Puspita N F , Rosalya A 
Published: December 2021

Abstract
Edible film from cassava starch was successfully synthesized. It was equipped with antimicrobials created from glycerol and lime extract. In this study, edible film will be utilized as food packaging. It was easily produced through simple methods. Cassava starch was mixed with glycerol and lime extract in various concentrations. The effect of dosage concentration of lime extract was studied. The thickness of film, moisture content, swelling degree, solubility, water vapor transmission and biodegradability were also studied. Edible film obtained at 0.25 mm of thickness, the swelling degree did not reach 2%. The biodegradability for seven days was only at 60%. This edible film can be viable option as food packaging
Evaluation antioxidant capacity and proximate composition in brown seaweed S. crassifolium found in Lombok coast, Indonesia
Authors: Ardiana N , Abidin A S , Ilhami B T K , Sunarwidhi A L , Widyastuti S , Sunarpi H , Prasedya E S 
Published: December 2021

Abstract
Seaweed is one of the marine-biota that is widely known for its uses, one of them is in the food functional. Functional food is a program that promotes a healthy diet so that it can prevent a disease when consuming food. With functional food, daily eating patterns can be maintained and also the content of the food consumed daily has a good effect on the body. It is known that in seaweed, especially brown algae (S. crassifolium), it contains antioxidants and other compounds that are good for the health. In this study, phytochemical content and proximate composition was evaluated in S. crassifolium. Including total flavonoid content and total phenolic content, antioxidant capacity both of DPPH and ABTS assay used three type of solvents such as Ethanol, n-Hexana, and ethyl acetate for comparable the best solvents. Also, proximate analysis to determine the content of moisture content, crude fat content, crude protein content, and carbohydrates content. The results showed that n-Hexana and ethyl acetate solvents were significantly than ethanol. Which mean both of them had highest values of total flavonoid content (TFC), total phenolic content (TPC), and antioxidant activity of DPPH radical scavenging activity and ABTS radical scavenging activity. The results of chemical composition in proximate compounds showed that S. crassifolium was suitable to be candidate of functional food.
The improvement of molluscs population: as a parameter of success of local scale mangrove conservation on the south coast of Lombok
Authors: Al Idrus Agil , Nunung Hidayati Baiq , Ajizah Erna , Bintang Ilahi Wahyu , Syukur Abdul 
Published: December 2021

Abstract
Mangroves are known by local people as mangrove plants that contribute to the sustainability of the diversity of marine biota species, such as molluscs. At the study site, mangrove conservation activities have been carried out by the community and are thought to influence the development of molluscs populations significantly. The study aims to assess the results of local-scale mangrove conservation with the development of molluscs populations. The research method uses observation methods with transect methods for ecological data. Ecological data analysis uses the index of evenness, richness, and diversity. The analysis found 27 species of molluscs consisting of 21 species of gastropods and 6 species of bivalves. The highest evenness and diversity was found at 2.4 in Gerupuk, while the highest wealth index was 16.8 in Poton Bakau. Furthermore, the molluscs species found consists of two classes, namely bivalves and gastropods. The main factor in determining species richness, is more determined by the condition of the substrate. In this case, the presence of mangroves is very important in creating the substrate conditions needed by the diversity of mollusc species. Therefore, mangrove conservation is very important for the protection and preservation and diversity of molluscs species. Information on the ecological potential of mangroves on fauna diversity, especially molluscs, can be a major source of ecosystem-based marine resource management, such as at the study site.
Long-term Storage of Bacterial Isolates by Using Tryptic Soy Broth with 15% Glycerol in The Deep Freezer (-70 to -80 °C)
Authors: Sunarno  , Nursofiah S , Hartoyo Y , Amalia N , Febrianti T , Febriyana D , Saraswati R D , Puspandari N , Sariadji K , Khariri  , Rukminiati Y , Muna F , Susanti I , Multihartina P 
Published: December 2021

Abstract
For different bacterial preservation techniques, there is no single method applicable for all bacteria. This study aimed to assess the viability of seven species/species groups of clinical bacteria isolates on the long-term storage (more than 5 years) by using Tryptic Soy Broth with 15% glycerol in the deep freezer (-70 to -80°C). A total 10,654 clinical bacteria isolates used as samples in this study. The isolates consisted of seven species/species groups (i.e. Escherichia coli, Campylobacter spp, Shigella spp, Vibrio spp, Salmonella spp, Aeromonas hydrophila, and Neisseria gonorhoeae). The isolates were collected from some previous studies and preserved in the Tryptic Soy Broth (TSB) with 15% glycerol and stored in the deep freezer (-70 to -80°C) for more than five years. The samples were revived on the suitable medium to evaluate the viability of bacteria. Identification conducted by microscopic examination, biochemical test, and latex agglutination. The study showed that the viability of Salmonella spp, Shigella spp, Aeromonas hydrophila and E. coli was 100%, while Campylobacter spp, Vibrio spp, and N.
gonorhoeae were 66.7%, 66.4%, and 52.5% respectively. We concluded that viability of Salmonella spp, Shigella spp, A. hydrophila, and E. coli was optimum thus better than Campylobacter spp, Vibrio spp, and N. gonorhoeae for more than 5 years storage by using TSB with 15% glycerol in the deep freezer (-70 to -80 °C).
Microplastics evaluation in edible tissues of flying fish (Parexocoetus mento) from the Bintaro fish market, Lombok, Indonesia
Authors: Abidin A S , Ilhami B T K , Martyasari N W R , Kirana I A P , Widyastuti S , Candri D A , Jupri A , Hernawan A , Sunarpi H , Prasedya E S 
Published: December 2021

AbstractMicroplastics (MPs) are plastic fragments that are degraded into small particles with a diameter of <5 mm. Pollution in the ocean by MPs has become a global threat which damages aquatic and marine ecosystems. There are several types of MPs detected in the digestive tract and in edible fish tissue. However, such report remains limited in Indonesia. Despite the high rate of plastic pollution in Indonesian coastal areas. This study aims to determine the presence, abundance and characteristics of MPs including type, shape, and color in the edible tissue of commercially important pelagic fish species from the Bintaro fish market, Lombok, West Nusa Tenggara. Flying Fish(Parexocoetus mento)was evaluated for MPs content in their edible tissue. Isolation of MPs in fish meat was conducted by firstly adding 10% KOH solution followed by incubation for 24 h. Furthermore, the solution was incubated in the oven for 48 h at a temperature of 90oC. The WPO (Wet Peroxide Oxidation) reaction was carried out by adding 30 mL of 0.05 M Fe(II) oxide and 30 mL of 20% Hydrogen peroxide (H2O2) continued by heating on a hotplate at 75oC at 350 rpm for 45 minutes to remove organic matter from fish. The remaining filtrateswere treated by further heating, followed by filtration with stainless steel sieves (45//m). Current results show five types of MPs detected in fish sample were Fragment, Filament/fiber, Film, Foam and Pellet. The most abundant type of MPs was fragment type (368.67 particle/fish). Current results show a significant amount of MPs were found in edible tissue of flying fish in Bintaro market. However further characterization of MPs would be needed to confirm the MPs types. Nevertheless, current study show the potential contamination of MPs inP. mentofish commercially sold in fish market at Lombok, Indonesia. Hence, awareness should be raised in local communities to reduce plastic pollution in marine and coastal areas.
Preparation and evaluation of gelatin and pectin-based Moringa oleifera chewable-gummy tablets
Authors: Rani K C , Jayani N I E , Feneke F , Melanda S 
Published: December 2021

Abstract
Chewable gummy tablets consist of sugar and a gelling agent. Adding Moringa oleifera leaf powder to this dosage form provides health benefits since it contains high antioxidants and nutrients. This study developed chewable gummy tablets containing moringa leaf powder using two types of gelling agents, each prepared with three different concentrations. Gelatin was made in 5.0%, 7.5%, and 10.0% concentrations, while pectin was 1.0%, 1.5%, and 2.0%. This study aimed to analyze the effect of the type of gelling agent and concentration on the physical characteristics of the chewable gummy tablets produced, including visual appearances, weight variation, tablet dimension, swelling ratio, dispersion time, syneresis, and texture profile (hardness, chewiness, and gumminess). The chewable gummy tablets were prepared by heating and congealing, and then their physical characteristics were analyzed using a completely randomized design (α=0.05). The results showed that the type and concentration of the gelling agent and the interaction between the two factors significantly affected the dispersion time, syneresis, hardness, gumminess, and chewiness (p<0.05). Among the prepared formulations, chewable gummy tablets developed using 10% gelatin and 1.5% pectin are considered optimal because these fulfill all the physical characteristics requirement, show no syneresis, and provide the best texture.
In vitro analysis of human immune response (IgG) against salivary gland extract of dengue vector from dengue hemorrhagic fever (DHF) endemic area in Jember, Indonesia
Authors: Oktarianti R , Damara D R , Qudsiyah S U R , Wathon S , Senjarini K 
Published: December 2021

AbstractThe mosquito speciesAe. aegyptiandAe. albopictusare two potential vectors of dengue fever. The salivary glands of these species contain substances that play a role in the transmission of pathogens. These include vasodilators and immunomodulatory compounds. Immunomodulatory components can modulate the host immune system by producing specific antibodies (IgG). This study aims to investigate the human immune response (IgG) against the salivary gland extract ofAe. aegyptiandAe. albopictus. Samples were collected from individuals who were Dengue patients, as well as healthy individuals and neonates from the Jember endemic area. Results show that the levels of IgG response vary across the individual. Generally, Dengue patients and healthy people in the DHF-endemic area had higher levels of IgG. The highest immune response was found in DHF patients, followed by healthy persons, and finally the neonate samples, respectively.
Anthelmintic activity assay of Starchytarpeta jamaicensis L. Vhal tea against Fasciola sp
Authors: Fahlevi M R , Pratama I S , Sriasih M 
Published: December 2021

AbstractStachytarpeta jamaicensis L. Vhal(SJ) tea has been empirically used as an anthelmintic, but scientific evidence on its use as an anthelmintic against Fasciola sp. is still limited. The aim of this study was to determine the effective concentration of SJ tea as an anti-Fasciola.S. jamaicensisleaves were cut, dried and then packed in the form of tea bags. The presence of secondary metabolites in the tea was also analyzed phytochemically. The anthelmintic activity assay of SJ tea was carried out using anin vitroexperimental design with a post-test with control group design. Thein vitrotest consisted of negative control (0.9% NaCl), positive control (10% Albendazole) and SJ tea with a concentration of 10%, 5%, and 2.5%. The worm’s movement was observed and the time required for the death of Fasciola was recorded and analyzed. Phytochemical analysis shows that SJ tea contained alkaloid compounds, flavonoids, saponins, tannins and triterpenoids. Time required for death of Fasciola in the positive control, the negative control, the tea concentration of 10%, 5%, and 2.5% were 18.75, 168.75, 23.75, 42.5, and 66.25 min, respectively.S. jamaicensistea with a concentration of 10% showed comparable effectiveness (p>0.05) to standard reference 10% Albendazole as an anti-Fasciola and resulted in the fastest death of Fasciola fluke compared to other concentrations of the tea. The results of this study indicate that SJ tea can be used as an alternative in overcoming Fasciola infestation. Further works are required to determine its safety when usedin vivo.
Enteric pathogen among children under five years old with diarrheal diseases in Indonesia
Authors: Puspandari N , Amalia N , Hartoyo Y , Nursofiah S , Sunarno S , Sariadji K , Soekarso T , Febrianti T , Khariri K , Muna F , Rizky A , Saraswati R D , Febriyana D , Rukminiati Y , Susanti I , Anandari D , Agtini M D 
Published: December 2021

Abstract
Diarrheal diseases are the second cause of the high morbidity and mortality in children under five years old. According to the Basic Health Survey 2018 conducted by the Ministry of Health, the prevalence of diarrheal diseases among children under five years old that were diagnosed by healthcare workers was 11.0%. The aim of this study was to describe the enteric pathogen isolated from children with diarrhea. The study was conducted in five cities in Indonesia: Jakarta, Serang, Denpasar, Makassar, and Mataram. The Inclusion criteria were children aged one month to five years old, with diarrhea that was diagnosed by a healthcare worker. The rectal swabs were sent to the Centre for Research and Development for Biomedical and Basic Health Technology, National Institute of Health Research and Development, Ministry of Health in Jakarta. Virus and Enterotoxigenic Escherichia coli (ETEC) identification by using multiplex PCR from Seegene, meanwhile bacteria identified by conventional method. As many as 2626 children under five years old participated in this study. The highest viral pathogen that causes diarrhea is viral 1.807 (68,81%) and 486 (18,56%). The virus etiology was Rotavirus 982 (54,34%) cases, followed by Adenovirus 916 (50.69) cases, Norovirus II 444 (24,57%) cases, meanwhile the bacteria pathogen were Enterotoxigenic Escherichia coli detected in 262 (9,98%) followed by Campylobacter jejuni and Shigella spp. This study described Rotavirus is the prevalence etiology of diarrhea among children under five years old followed by Adenovirus and Norovirus, some other cases reported the cause of diarrhea were bacteria ETEC E. coli followed Campylobacter jejuni, Shigella spp, etc.