bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characteristic of Nano-Calcium Bone from a Different Species of Catfish (Pangasius hypophthalmus, Clarias batrachus, Hemibagrus nemurus and Paraplotosus albilabris)
Authors: Sumarto  , Desmelati  , Sari N I , Angraini R M , Arieska L 
Published: April 2021

Abstract
Fishbone contains mineral components that can potentially be exploited to improve the nutrition of food products. This research was aimed to determine the quality characteristics of nano-calcium bone from a different species of catfish. This research used an experimental method by producing nano-calcium from other types of catfish (Pangasius hypophthalmus, Clarias batrachus, Hemibagrus nemurus, and Paraplotosus albilabris) using 1M NaOH. The production of nano-calcium from the bone of different species of catfish produce a white fishbone nano-calcium color, with the whiteness degree of 90.7% (P.hypophthalmus); 88.9% (C.batrachus), 89.1% (H.nemurus), and 88.4% (P.albilabris). The moisture content in catfish bone nano-calcium in P.hypophthalmus. C.batrachus. H.nemurus, and P.albilabris was relatively similar, Ranging from 5.71%-6.12%. Calcium content of catfish bone nano-calcium very high in P.hypophthalmus, C.batrachus, H.nemurus, and P.albilabris were 87.4%; 89.6%; 89.1%, and 86.1% respectively. While the phosphorus level in P.hypopthalmus fishbone was 11.2%. C.batrachus fishbone was 9.4%, H.nemurus fishbone was 9.8%, and P.albilabris fishbone was 12.7%. The particle size of nano-calcium in P. hypophthalmus fishbone was 248-672 nm, in H.nemurus fishbone 206-594 nm, and nano-calcium in C.batrachus fishbone was 135-573 nm.
Community readiness model for social forestry in Central Sulawesi, Indonesia
Authors: Umar S , Yodo S , Narawi M , Pribadi H , Samudin S , Prianto W 
Published: April 2021

Abstract
Community Readiness Model (CRM) is a research method widely used in the field of public health. The purpose of the paper therefore is to review the implementation of CRM in Social Forestry field (SF) of Central Sulawesi Province, Indonesia by considering the unique intersections between the two concepts. Qualitative Systematic Review was used in this study involving 169 documents obtained through the search of electronic sources. The main result was on combining the dimensions of both the CRM and SF to produce an integration model which intersects and transforms social values, culture, traditions, and behaviour. Social innovation involving network, strategy, solidarity, and collective identity was intersected between the dimensions of CRM and SF to consider the intrinsic values of the village community. These four components were specifically related to partnership, governance, resilience, community and policymaker, livelihood, social cohesion, and integration. The application of CRM to Social Forestry in Central Sulawesi has the ability to optimize local wisdom teaching about the change and harmony of life to provide a balance between humans and nature.
Spatial distribution of water quality in Belawan River, North Sumatra
Authors: Mirandha A , Irvan  , Wahyuningsih H 
Published: April 2021

Abstract
Belawan river is one of the rivers in North Sumatera Province. Belawan river which crosses Deli Serdang District and Medan City is used for the activities of plantation, agriculture, livestock, sand mining, a place for bathing and washing as well as serving as a lavatory, hospital, hotel, settlements, and industry. Utilization of the river as a wastewater disposal site can cause a decrease in the quality of river water. The purpose of this research was to analyze the Belawan river water quality spatially. Water sampling was taken at nine points which included three upstream segment points in Deli Serdang District, three middle segment points in Deli Serdang District and Medan City, and three downstream segment points in Deli Serdang District. Based on the results of the research it can be concluded that the value of Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) at several monitoring points in Belawan river has exceeded the water quality standard limits of class I Government Regulation of Republic of Indonesia Number 82 the year 2001 and North Sumatera Governor Regulation Number 21 the year 2006.
Impact of different salt levels on the seedling growth and root development of Bruguiera sexangula for the regeneration of mangroves
Authors: Basyuni M , Manalu N B , Yunasfi  
Published: April 2021

Abstract
At present mangrove forests have been degraded in North Sumatra, Indonesia. It is therefore the rehabilitation efforts are needed to betterment of mangrove forests. Salinity influences plant growth and development because salinity conditions that are not suitable leading to plant growth and development. This research aims to study the impact of difference salinity concentration on the growth and development of Bruguiera sexangula seedlings. The study was performed using five treatments levels of salinity, namely 0%, 0.5%, 1.5%, 2% and 3%, respectively with ten replications for five months in the greenhouse of Faculty of Agriculture, Universitas Sumatera Utara. There were differences in the growth response of B. sexangula to variations in salinity concentrations. These results indicated that the best growth and development of B. sexangula seedlings at 0.5% salinity concentration of with six best parameters, namely superior height, diameter, number of leaves, number of lateral roots, main root diameter and lateral root diameter.
Species composition and carbon stock estimation in Pulau Sembilan secondary mangrove forests, North Sumatra, Indonesia
Authors: Basyuni M , Simanjutak E O 
Published: April 2021

Abstract
This study aimed to identify the species composition and measure the carbon stock estimation from the secondary mangrove forest. Analysis of vegetation (tree, sapling, and seedling) was carried out at Pulau Sembilan, Langkat, North Sumatra, Indonesia. The development of the seedlings, saplings, and trees was determined from four transect lines. Each transect had 100 m length. Each measured plot of total four transects contained 30 plots. The result showed that Rhizophora apiculata predominated vegetation types of seedlings, saplings, and trees in the mangrove forest, with the highest importance value index (116.13%). On the other hand, Bruguiera parviflora had the highest IVI (71.37%) of saplings, while at seedlings and tree levels were dominated by R. apiculata with IVI, 65.30%, and 75.48%, respectively. The diversity index of Shannon-Weiner ranged 1.11-1.49 at the secondary mangrove forest. In secondary mangrove forests had total biomass of trees at 51,589.83 kg/ha with a carbon potential of 23.73 tons/ha. This study provided a basis for rehabilitation, mangrove management and enrichment information in secondary mangrove forests.
Soil arthropod species and their abundance in different chili management practices in freshwater swamps of South Sumatra, Indonesia
Authors: Herlinda S , Fadli R , Hasbi  , Irsan C , Setiawan A , Elfita  , Verawaty M , Suwandi S , Suparman  , Karenina T 
Published: April 2021

Abstract
The chili management practices can influence the predatory arthropod community. This study aimed to identify soil arthropod species and examine their abundance in different chili management practices in freshwater swamps of South Sumatra. The survey was conducted in three types of chili field, first without mulch and synthetic insecticides, and by fertilizing using manure (EF). The Conventional 1 (C-1) used plastic mulch, synthetic fertilizers, and synthetic insecticides. The Conventional 2 (C-2) used insecticides and synthetic fertilizers but without mulch. The total of all soil arthropod species was found in the different chili management practices of 24 species originating from Insecta, Arachnida, and Diplopoda. The highest number of soil arthropod species was found in EF, while the least number was found in C-1. This survey found species of predatory mites (Macrocheles dispar), spiders (Pardosa birmanica), and predatory insects (Coccinella transversalis) and other important predators such as Pheropsophus occipitalis and Pardosa pseudoannulata. The abundance of soil arthropods either predators, herbivores or neutral insects was the highest in EF, while the lowest one was in the C-1. Overall, different chili management practices affected the number of species and abundance of soil arthropods; the environmentally friendly plot has the highest number of species and the largest abundance.
Analysis of soil physical properties and infiltration rates for various landuses at Gunung Dahu Research Forest, Bogor District, West Java Province
Authors: Saputra N E , Wibowo C , Lisnawati Y 
Published: April 2021

Abstract
Assessment of the ability of the soil to absorb water can be known from the value of the infiltration rate. This study was conducted to examine the physical properties of soils and infiltration rates, analyze the relationship between physical properties of soils and their infiltration rates and determine the best infiltration models for various land uses. The data is processed using the Horton and Kostiakov infiltration model. Correlation analysis and R tests were performed to compare the field infiltration rate with the model prediction results. The results showed that the physical properties and infiltration capacity in the three land uses differed significantly on several parameters of physical properties such as drainage pore, permeability and infiltration with sequential values in the stands of S. leprosula, S. selanica and tourism objects were 3.21%, 2.29%, 3.51% for the parameters of fast drainage pores and 7.84%, 8.67%, 7.49% for slow drainage pore. Whereas the average permeability values are 1.37 cm / hour, 2.13 cm / hour, 3.39 cm / hour. Based on the results of field infiltration measurements, it was found that the S. selanica stands had the highest infiltration rate with a value of 15.5 cm / hour. The results of the correlation test and regression test between the field infiltration rate and the Horton infiltration model rate were not significantly different so that the Horton infiltration model can be used for the infiltration rate of soils in the Gunung Dahu Research Forest.
Physicochemical characteristics of donuts from composite flour (modified sukun, sweet poultry, mocaf, saga seeds)
Authors: Sanjaya N , Nurminah M , Karo-Karo T 
Published: April 2021

Abstract
This research aims to determine the composite flour formulation from modified breadfruit flour, purple sweet potato flour, mocaf and saga seed flour in making good quality donuts. The analysis was carried out using a non factorial complete randomized design, donut with composite flour formulation (modified breadfruit flour, purple sweet potato flour, mocaf and saga seed flour) (P): 10%: 40%: 50%: 0%, 15%: 35%: 45%: 5%, 20 %: 30%: 40%: 10%, 25%: 25%: 35%: 15%, 100% purple sweet potato flour, 100% mocaf, 100% modified breadfruit flour, and 100% wheat flour had a very significant influence on protein content, crude fiber content, fat content, specific volume and L. The final results of the study showed that the formulation of composite flour (modified breadfruit) purple sweet potato, mocaf and saga seeds) (25%: 25%: 35%: 15%) produce the best quality donuts.
Physicochemical characteristics of crackers from composite flour (modified sukun, sweet powder purple, mocaf, and saga seeds)
Authors: Khairatika I , Nurminah M , Lubis Z 
Published: April 2021

Abstract
Crackers are one type of processed food that is very popular with the community. Crackers are usually made from wheat flour and have a layered, dry, and usually salty structure. Among this type of pastry community is much in demand as a snack when relaxed. However, due to the increasing value of imported flour in Indonesia, these crackers can be made using composite flour such as breadfruit flour, purple sweet potato flour, mocaf, and saga seed flour which are found in Indonesia. This research consisted of 8 treatments with the best modified breadfruit flour ratio: purple sweet potato flour: mocaf: saga seed flour ie P1 = 10: 25: 65: 0, P2 = 15: 20: 60: 5, P3 = 20: 15: 55:10, P4 = 25: 10: 50: 15, P5 = 100% modified breadfruit flour, P6 = 100% Mocaf, P7 = Purple sweet potato flour, P8 = 100% flour. The results of the study had a significantly different effect (P <0.01) on the value of specific volume, ash content, fat content, fiber content, and protein content. But no significant effect on the value of L *, a *, b *, oHue, carbohydrate content, color, aroma, texture, taste and general acceptance of crackers produced. And based on the De Garmo test with organoleptic parameters of color, aroma, taste, and texture, general acceptance, moisture content, fat, fiber, protein, and ash content, crackers with treatment P4 = P4 = 25: 10: 50: 15 are the best crackers.
Predicted of a heat shock cognate 70 kDa protein by PHYRE2 and SWISS-MODEL software from Elaeis guineensis and E. oleifera
Authors: Hayati R. , Basyuni M , Lisnawita  , Munir E 
Published: April 2021

Abstract
Protein modeling was obtained from Elaeis guineensis and E. oleifera. The identification of heat shock cognate70 kDaboth very similar to coverage 90% analyzed by SWISS-MODEL. In addition, the data from similarity, identity, range, and Q-mean were distinct. According to the PHYRE2 analysis, we observed the longest residue presenting in E. guineensis (15-348). Wherein the 3D-ligand site prediction confirms that many amino acids were found (GLY, THR, TYR, LYS, GLU, ARG, and SER). Interestingly, the heat shock cognate 70 kDa protein in E. oleifera has a slight residue (15-18), and also have been three amino acids (GLY, THR, TYR). Appropriately, the heat shock cognate-like protein involved in different species, likewise playing a distinct response to kind the defense. The different homology images and templates were identified as different binding site predictions. These models can be used for supporting the E. guineensis and E. oleifera proteins modeling, mainly in the molecular study.
The chemical changes in the total antioxidant status and biological activity of GSTP1 polymorphism on nasopharyngeal carcinoma patients
Authors: Farhat F , Sari M I , Chrestella J , Syari R P 
Published: April 2021

Abstract
Oxidative stress is associated with cancer, including NPC, which is developed by the relation of genetic alteration, EBV infection, and environmental risk. Ile/Val genotype of GSTP1 polymorphism decrease enzyme functions and result in lower total antioxidant status. This study aimed to identify the association of GSTP1 polymorphism and the TAS level. This was a cross-sectional design study. There were 29 NPC patients with their blood as the samples of the study. Blood as the samples for identifying GSTP1 polymorphism by PCR-RFLP-electrophoresis method and measurement of TAS using the ELISA method. There were 21 (72.4%) NPC patients with Ile/Val polymorphism and lower TAS. We found there was no significant association of GSTP1 polymorphism and TAS. Future research with larger samples and adding data about environmental risk such as smoking, alcohol consumption, and toxic substances exposure or multivitamin consumption of the patients can reveal more definitive results. The study may be used as references for determining antioxidant therapy in NPC as well as prevention. The identifying genetic risk factor may help the prevention of NPC.
HSP70 (heat shock protein 70) expression and antioxidant as a protective againts oxidative stress triggered by sub-maximal physical activity
Authors: Harahap N S , Amelia R , Sibuea A , Manalu N , Novita N 
Published: April 2021

Abstract
Sub-maximal physical activity will interfere with the ROS and antioxidants balance, so oxidative stress occurs. Oxidative stress can induce increased expression of HSP70 in cells to produce a cytoprotective effect. Red dragon fruit in biological systems can neutralize free radicals, because it contains flavonoid compounds and polyphenols. There were 20 participants, male, athletes, non-smokers and 2 weeks before and during the study, no consumption of supplements and antioxidants. Participants were randomly divided into 2 teams. Team A had sub-maximal activity and no red dragon fruit given. Team B had activity sub-maximal and was given red dragon fruit juice. Study found that HSP70 expression was lower in the team B than in team A. There was significancy difference between team A and team B in expression of HSP70. We concluded that, HSP70 expression and antioxidants can be the protective function against oxidative stress triggered by sub-maximal physical activity.
Application of ABAQUS on the Research of the Thermal Field of SRC Columns
Authors: Zhang Qingwen 
Published: April 2021

Abstract
According to the basic principles of heat transfer, the thermal field of SRC columns under fire is analyzed by finite element analysis software ABAQUS and the calculated results agree well with experimental data at home and abroad. On this base, the influence of parameters of sectional dimensions, length-to-width ratio of the section, steel ratio and reinforcement ratio to the distributing circumstance of thermal field of SRC columns are analyzed. The results show that parameters of sectional dimensions and length-to-width ratio are the most important factors affecting the distributing circumstance of thermal field of SRC columns. The larger the parameters of sectional dimensions, the lower the component temperature. The greater the length-to-width ratio, the greater the component temperature is. Steel ratio and reinforcement ratio have almost no effect on the distributing circumstance of thermal field of SRC columns. The achievements make it possible to study further the mechanical performance of SRC columns at high temperature.
Analysis on Blasting Effect of Parallel Cut with Empty Hole in Tunnel Construction
Authors: Lai Zhenyu 
Published: April 2021

Abstract
Establishing a calculation model for parallel cut blasting effect has certain practical significance for guiding tunnel blasting construction. A calculation model of cutting blasting effect is established based on the theoretical analysis in this paper. Under certain conditions, the quantitative relationship between the cutting efficiency and the hole diameter, the depth of the cut hole and the hole distance between the cut hole and the empty hole is obtained. The calculation results of the model are consistent with the results of a pure cutting test, which shows that the calculation model is reasonable.
Stress Analysis of Screw-Bored Compaction Cast-in-Place Piles
Authors: Zheng Xianchao , Chen Xiaoxia , Zhang Jiaolei 
Published: April 2021

Abstract
Based on the current research status of screw-bored compaction cast-in-place piles (screw piles for short) and using ANSYS finite element software, in this research, a simulation analysis of the pile axial force and the side friction was conducted for three types of screw piles with different screw length ratios under vertical loading. The modeling analysis results were compared with the engineering data from a practical project in Anyang City, Henan Province, and the finite element model was validated. This research determined the effects of the screw length ratios on the pile axial force and the side friction and provided a theoretical foundation for the engineering design of a screw pile.
Bearing Capability for Mirco-Pile with Concrete-Filled Steel Tubular Reinforced Building Foundation
Authors: Shen Yongkang , Zhong Weiqiu , Qu Guotong , Li Wuxu 
Published: April 2021

Abstract
In general, the bearing capability is strength capability for mirco-pile. The stability bearing capability for mirco-pile with concrete-filled steel tubular becomes important in reinforced building foundation. The theory of buckling stability is applied to study the bearing capability of mirco-pile. According to the character of concrete filled steel tubular, the Euler force and the friction between pile and soil are combined for the buckling bearing capability of mirco-pile with concrete-filled steel tubular. The equation of mirco-pile with concrete-filled steel tubular is confirmed by some test data and numerical simulation. The slenderness ratio and material strength took great effects on the bearing capability of mirco-pile with concrete filled steel tubular. The equation on bearing capability mirco-pile with concrete filled steel tubular is applied for reinforce building foundation and referred to other application of concrete filled steel tubular.
Research on FBG Technology Applied in Highway Soft Foundation Pore Pressure Monitoring
Authors: Liu Youping 
Published: April 2021

Abstract
The pore water pressure monitoring of soft ground pavement is one of the important technical links in highway construction monitoring. The use of traditional electrical measuring instruments to monitor pore water pressure has disadvantages such as low degree of automation, non-real-time data transmission, and high manual monitoring costs. However, fiber grating monitoring technology has developed rapidly due to its advantages of stable data transmission, convenient collection, and dynamic monitoring. . Therefore, relying on the soft foundation pore water pressure monitoring project of Jiujiang Ring Expressway, the monitoring principle of the fiber grating seepage pressure sensor and the buried installation technology in the soft foundation are introduced. Through the long-term monitoring practice on the construction site, it is confirmed that the optical fiber monitoring system is applied to the soft foundation. The stability of base pore water pressure monitoring provides a reference for similar monitoring projects and engineering construction.
Research and Development of Railway Alignment Design System Using FreeCAD Software
Authors: Wang Huansong , Lu Wenlong , Shi Ruichang , Yu Shengli , Wu Fadong 
Published: April 2021

Abstract
This paper explores the functional modules of railway alignment design in the open source FreeCAD software, and makes a foundation development for other railway majors in the open source software. The interactive interface is designed by pyside. The geometric elements of the railway alignment, the coordinates of the main point (ZH, HY, YH, HZ, QZ) and the elevation of end or start point in vertical curve are calculated according to the intersection data, so as to realize the design of the horizontal and vertical section for the alignment. OCC interface is accessed through part module to realize the synthesis of railway baseline. Comparing the baseline generated by FreeCAD with the pile-by-pile coordinates of a project bid section, the coordinate error is less than millimeters, which can well meet the needs of railway construction.
Study on the Influence of Excitation in Sliding Construction of Long Span Steel Structure
Authors: Zhou Qinghui , Zhang Chenlong , Xiao Long , Zhang Xiwang , Xie Yidong 
Published: April 2021

Abstract
There is a safety risk on sliding construction because of the unstable state of large-span steel structure. The core technology of sliding construction is synchronous control. In this paper, a large-span steel structure sliding construction is taken as an example. The span reaches 202.2 m, which is the first case in China. Based on the theoretical analysis of the sliding process, the mathematical sliding model is established, and the main parameters are analyzed. The displacement and synchronization error under the external exciting force are calculated. The sliding motion, mechanical properties are studied. It also provides measures to improve synchronization performance. The result has proved that the scheme effectively guarantees the construction safety and quality. So it is also a reference for the design and development of the synchronous control.