bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modeling Causal Relationships Among Giftedness Structure Variables
Authors: Fathey Okasha Mahmoud , Abdalmageed Amany Farahat 
Published: February 2021

The present research aimed at identifying the interrelationships between cognitive, meta-cognitive, and extra-cognitive abilities, and exploring the paths of causal relationships between the constituent variables of the model, as well as verifying the suitability of the structural model with its various components in the interpretation of giftedness. The research sample consisted of (130) male and female students in secondary grades one and two in Technology and Sciences School for gifted in Cairo (STEM Egypt), (32) female students, and (98) male students. The sample's aged between (15-17) years with an average of 15.87 years and a standard deviation of 1.13 degree. The instruments of the study were applied on them after checking their psychometric properties. These tools were: Raven's Progressive Matrices test (Abu Hatab, 1977), and Torrance creative thinking test (photo B) (Sulaiman & Abu Hatab, 1976), as well as a computerized battery that includes a computerized task specific metacognitive skills test, and a computerized Extra-cognitive abilities scale. The research concluded that there is a high impact of meta-cognitive abilities on cognitive abilities, except achievement, and high impact of extra-cognitive abilities on meta-cognitive skills. The results also showed the relevance of the proposed model with its variables in the interpretation of giftedness structure.
Keywords: giftedness structure model, developmental cognitive theory of giftedness, meta cognitive abilities, extra-cognitive abilities.
The assessment of usefulness of innovative instrumental treatments for non‑invasive reduction of a double chin
Authors: Kroma Anna , Sobkowska Daria , Pelant Ewa , Micek Iwona , Urbańska Maria , Kuczyński Sebastian , Gornowicz‑Porowska Justyna 
Published: February 2021

One of the most common defects in the facial area is the so‑called “double chin”. The problem affects both males and females, and its occurrence is associated with several different factors. It is commonly believed that this defect is a result of excessive adipose tissue location in the lower face. However, the problem seems to be more complex. It is also facilitated by the loss of firmness and elasticity of ageing skin, and in many persons the existence of a double chin results from their anatomical structure, and therefore is determined by genes. Besides, incorrect posture accentuates the defect. It may seem that such minor change does not affect the appearance to a large extent. Whereas, in most cases it causes that the border between the jaw line and the neck disappears what, in turn, distorts the face contour. All this makes a person with a double chin look much older than he or she in fact is. This leads to negative self‑esteem, makes people feel ashamed, and quite often is the main reason for avoiding interaction with other people. So, it is no wonder that persons with such defect seek methods offering its mitigation.Surgical methods give quick and satisfactory effects. However, they are fraught with high risk of complications, and as such they cause anxiety and ultimately discourage patients from making the decision. Luckily, significant improvements in the field of cosmetology and aesthetic surgery offer a wide range of possibilities to reduce a double chin in a manner which is completely non‑invasive, pain free, and does not require long lasting convalescence. In this case, very good results are achieved with the use of innovative technological solutions, such as HIFU and cryolipolysis. Aim. The main aim of this paper is to assess the efficiacy of cryolipolysis in the double chin reduction and the description of innovative instrumental methods allowing for a non‑invasive reduction of this defect.
Isolation and Characterization Of Arbuscular Mychorhiza Fungi from Gaharu Wood (Aquilaria spp.) Rhizosphere
Authors: Wijayanti Dian Rachma , Turjaman Maman 
Published: February 2021

In the last 30 years there have been increasing demand of agarwood. Unlimited hunting of agarwood causing it become threatened species. Aquilaria spp. is the main genus producing agarwood that considered as threathened species. Conserving Aquilaria spp. as germ plasm needs is essential against destruction. Arbuscular mycorrhizal fungi (AMF) have been used as inoculant to increase the growth of Aquilaria spp., but information about the existence of AMF in Aquilaria spp. rhizosphere has not been reported. This research was carried out with objective to identify AMF from Aquilaria spp. rhizosphere. Soil and root samples from rhizosphere of Aquilaria spp. taken from four location that is: Carita (A. malaccensis), Ciapus (A. filaria), Cifor (A. crasna & A. malaccensis), and Bantar Kemang (A. beccariana, A. crasna, & A. malaccensis). Roots staining was conducted with modified Phillips and Hayman procedure (1970). Soils sample was run dry wed and placed in pot culture with Pueraria javanica as the host plant. Spore was separated from pot culture using wet sieving and decanting method continued with centrifugation. The result showed the occurrences of AMF in Aquilaria spp. roots i.e. external hypha, internal hypha, coiled hypha, arbuscules, and vesicles. All AMF colony structure found in Aquilaria spp. roots show asosiation bettwen the plant and AMF. Four species of AMF were found i.e. Glomus sp.1, Glomus sp.2, Gigaspora albida, and Dentiscutata sp.
Key Words: Isolation, Arbuscule Mycorrhizae Fungi, Rhizosfer, Agarwood
Authors: Isnasari Azma Nurizqi , Kusharyati Dyah Fitri , Oedjijono Oedjijono 
Published: February 2021

Kesehatan manusia sangat erat kaitannya dengan kondisi saluran pencernaan manusia sejak awal kehidupannya. Diversitas mikroorganisme yang terdapat dalam saluran pencernaan manusia sangat beragam, yaitu berkisar 300-500 spesies bakteri berbeda. Penambahan beberapa aspek dalam nutrisi diperlukan untuk meningkatkan daya kerja nutrisi. Prebiotik seperti inulin dan FOS serta probiotik seperti Bifidobacteria adalah aspek yang dapat ditambahkan untuk meningkatkan nutrisi. Pertumbuhan bakteri yang optimal dapat diketahui berdasarkan pada kurva pertumbuhan bakteri. Permasalahan penelitian yang muncul yaitu bagaimana pengaruh prebiotik inulin dan FOS terhadap pertumbuhan Bifidobacterium sp. Bb2E, berapa waktu inkubasi yang diperlukan untuk mendukung pertumbuhan Bifidobacterium sp. Bb2E, dan bagaimana interaksi antara jenis prebiotik dan waktu inkubasi terhadap pertumbuhan Bifidobacterium sp. Bb2E. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh prebiotik inulin dan FOS terhadap pertumbuhan Bifidobacterium sp. Bb2E, mengetahui waktu inkubasi optimal Bifidobacterium sp. Bb2E, dan mengetahui interaksi antara jenis prebiotik dan waktu inkubasi terhadap pertumbuhan Bifidobacterium sp. Bb2E. Penelitian ini dilakukan menggunakan rancangan percobaan Rancangan Acak Lengkap (RAL) dengan pola faktorial. Parameter utama yang diukur yaitu jumlah populasi Bifidobacterium sp. Bb2E, sedangkan parameter pendukung yang diukur yaitu nilai pH dan kadar asam laktat tertitrasi. Variabel bebas yang diamati dalam penelitian ini adalah penambahan prebiotik pada medium, sedangkan variabel terikat yang diamati yaitu jumlah populasi dari Bifidobacterium sp. Bb2E. Hasil penelitian ini menunjukkan penambahan prebiotik inulin dan FOS dengan waktu inkubasi berbeda berpengaruh nyata terhadap pertumbuhan Bifidobacterium sp. Bb2E. Hasil terbaik yang dapat meningkatkan pertumbuhan Bifidobacterium sp. Bb2E yaitu kombinasi prebiotik inulin+FOS dan waktu inkubasi 18 jam dengan nilai optical density sebesar 1,794 dan jumlah kepadatan populasi sebanyak 2,44x1010 CFU/mL.
Genera Jamur Patogen dan Persentase Penyakit Bercak Daun yang ditemukan pada Pertanaman Sawi Hijau (Brassica juncea) di Desa Serang, Kecamatan Karangreja, Purbalingga
Authors: Hartatik Nia Sri , Sucianto Eddy Tri , Purwati Endang Sri 
Published: February 2021

Green mustard (Brassica juncea) is an annual or horticultural plant of the Brassica genus. The purpose of this research is to knowledge the type of fungi that cause leaf spot disease on green mustard plants and to know the large percentage of leaf spot diseases caused by fungus on mustard greens in Serang Village, Karangreja District, Purbalingga. This research is used survey method by taking purposive random sampling at two different locations. The type of fungus that causes leaf spot disease on (B. juncea) mustard green can be identified by isolating the part of plants are sick then identified. Identification of fungi is doing by two stages of observation, that is observation macromorphological characters and micromorphological characters. Observation of macromorphological characters includes colony color, colony shape, the edge of colony shape and colony reverse color. Observation of the micromorphology character includes the presence of hyphae, hyphae (insulated or non-insulated), conidia shape, conidia color, additional devices and conidiophores. The next stage to find out the type of fungus that causes leaf spot disease is Koch's Postulate.The results obtained there is one type of disease in green mustard plants. Leaf spot is one of the diseases of mustard greens caused by the fungus Alternaria sp, with a frequency of leaf spot disease as many as 196 times, and the percentage of disease of 51,30%.
Authors: Hardiyati Triani , Proklamasiningsih Elly , Budisantoso Iman 
Published: February 2021

Penelitian bertujuan mempelajari respon pemberian asam humat pada beberapa macam kombinasi medium tumbuh terhadap kandungan senyawa aktif pada tanaman Pegagan (Centella asiatica L. Urb). Melalui pemberian pupuk asam humat pada kombinasi medium diharapkan pertumbuhan dan metabolism tanaman meningkat yang kemudian berdampak pada meningkatnya senyawa aktif hasil metabolit primer. Medium yang digunakan adalah : tanah & pasir (1 : 1), tanah & sekam (1 : 1), dan tanah & zeolite (1 : 2). Asam humat yang diperlakukan ada 4 konsentrasi, yaitu : 0 gr/kg medium, 4 gr/kg medium, 8 gr/kg medium dan 12 gr/kg medium. Metode penelitian yang digunakan adalah eksperimen menggunakan Rancangan Acak Lengkap dengan pola perlakuan factorial. Sebagai Faktor Utama adalah kombinasi medium, dan sebagai Faktor Kedua adalah konsentrasi asam humat. Parameter yang diamati adalah kandungan alkaloid, flavonoid, dan terpenoid. Hasil penelitian menunjukkan bahwa medium tanam tanah dengan pasir dengan penambahan asam humat 8 gr/kg medium efektif dalam meningkatkan kandungan alkaloid dan biomassa tanaman pegagan. Sedangkan kandungan flavonoid tertinggi diperoleh pada medium tanah dan zeolite dengan penambahan asam humat 4gr/kg medium. Teridentifikasi adanya senyawa terpenoid dengan adanya cincin berwarna coklat pada ekstrak yang dilarutkan dalam chloroform , asam asetat dan asam sulfat pekat.
INDUKSI KALUS DENGAN 2,4D DAN BAP PADA EKSPLAN DAUN VEGETATIF DAN GENERATIF TEMPUYUNG (Sonchus arvensis L.)
Authors: Rahayu Shilfiana - , Suharyanto Suharyanto 
Published: February 2021

Tempuyung (Sonchus arvensis L.) merupakan tanaman yang memiliki banyak manfaat dan berpotensi sebagai obat. Tanaman ini diketahui memiliki kandungan flavonoid dan terpenoid yang tinggi. Propagasi tanaman ini sangat penting dilakukan untuk menyediakan bahan obat dalam skala prabikasi dan menghasilkan bahan yang memiliki kandungan senyawa yang tinggi. Metode kultur jaringan merupakan salah satu cara yang cepat dalam propagasi tanaman dan dapat meningkatkan kandungan metabolit sekunder dalam tanaman. Metode untuk menghasilkan senyawa yang tinggi dan menghasilkan somatik embrio dalam jumlah yang banyak dapat melalui kultur kalus. Tujuan penelitian adalah ingin mencari pengaruh hormon 2,4D dan BAP serta variasi eksplan daun terhadap pertumbuhan kalus tempuyung. Pada penelitian ini digunakan kombinasi hormon 2,4D (0; 0,5; 1 ppm) dan BAP (0; 0,5; 1 ppm) dalam menginduksi kalus, dan eksplan yang digunakan pada penelitian ini adalah daun vegetatif dan daun generatif tempuyung. Hasil penelitian ini menyatakan bahwa kalus dihasilkan dalam waktu 10-14 hari, dengan jenis kalus friabel dan berwarna kuning. Eksplan daun vegetatif lebih cepat inisiasi kalusnya disbanding daun generatif. Hasil lain menunjukkan bahwa kombinasi terbaik dalam produksi adalah BAP 0,5 ppm dan 2,4D 1 ppm, dan eksplan daun yang paling optimal dalam menghasilkan kalus terdapat pada eksplan daun vegetatif.
Behavior response of blue swimming crab (Portunus pelagicus) to the different entrance gates of collapsible pot
Authors: Aditya Henita , Mawardi Wazir , Riyanto Mochammad 
Published: February 2021

The behavior of blue swimming crab (BSC) (Portunus pelagicus) to the collapsible pot is observed to redesign the entrance of the pot with high effectiveness. The purpose of this study is to analyze the behavior response of BSC to the entrance gate of the collapsible pot by laboratory experiments. The behavior response of the BSC (100-150 mm of carapace width (CW), n= 15) to the two angles of the entrance gate, that were 200 as control and 400 as a modification of the collapsible pot. The movement and speed of the crab to the entrance gate were observed by using CCTV Camera. The results showed that the percentage of crabs failed to find the entrance was higher than crab that be successful to enter the pot. The crab that failed to find the entrance was 43% for control and 52% for modification pot, while the crab that be successful to enter was 24% for control pot and 19% for modification pot. There were five movement patterns of crab to the pot i.e. straight to entrance, side to entrance, side to side, entrance to side, and straight to side. The average speed of entrance crab was 127.89 ± 46.48 for control, and 88.45 ± 5.74 for modification pot. Keywords: behavior, response, blue swimming crab, collapsible pot, Portunus pelagicus
Wave Energy Potential for Development of Renewable Energy in Riau Archipelago Province
Authors: Putra Risandi Dwirama , Bachtiar Ibnu Kahfi , Cahyo Tri Nur , Suhana Mario Putra , Sianturi Oksto Ridho , Siringoringo Rikoh Manogar , Sari Ni Wayan Purnama , Abrar Muhammad , Suryanti Ani , Agust Satria , Syakti Agung Dhamar 
Published: February 2021

Energy and electricity demand in Riau Islands is increasing rapidly due to the fast-growing population, urbanization, industrial development, and economic growth. The limitations of energy and electricity in the Riau Islands caused frequent blackouts. To support the high demand for energy and electricity in the Riau Islands, renewable energy is the most suitable alternative energy solution. Renewable energy is not only playing a key role in providing energy but also providing long-term clean and sustainable energy. We investigated the wave energy potential in the Riau Islands Sea in four different consecutive monsoons (North monsoon, East monsoon, South Monsoon and West Monsoon) using ECMWF data during January 2018 to December 2018 with 0.125o x 0.125o and 6 hourly spatial and temporal resolutions. We extracted bathymetry data from NOAA’s database ETOPO1 and forecasting wave characteristics use the SPM (Shore Protection Manual) method. The potential wave energy simulation from significant wave height (Hs) and energy period (Te) was shown in spatial distribution based on different monsoon. Our studies found that the potential wave energy was higher in north monsoon with maximum spatial of wave power density 3.240 – 3.640 kW.m-1. The east monsoon tended to be lower potential wave energy with dominance of wave power density at 0 – 0.127 kW.m-1. Keywords: wave power density, potential wave energy, ECWFM, monsoon
Sediment Porosity Investigation of Tidal Zone in Teluk Penyu Cilacap, Indonesia
Authors: Haryono Florencius Eko Dwi , Suripto Hydian , Trenggono Mukti 
Published: February 2021

The sediment fraction is the grain size, sorting and composition of the sediment, while sediment porosity is the ratio of the volume of the cavity in total volume. The cavity in marine sediment is a habitat of decomposing organisms. The research aimed to analyze the relationship between the fraction and porosity of tidal zone sediments in coastal of Teluk Penyu Cilacap. This survey method used sediment core samplers, sediments fractions used sieve method and the porosity used method of Reeve (1986), and analysis used software SPSS20. The results showed that tidal zone sediments in coastal of Teluk Penyu Cilacap were dominated by the fine sand with percentage when high water was higher than low water. Based on mean size diameter, sediment near Serayu river was found medium sand and far was fine sand. Based on linear regression, the relation between sediment fraction and porosity at high water and low water was obtained very weak, but when low water was found in opposite condition to the high water, that the greater of sediment diameter was smaller of porosity. High porosity indicates a wider space between the sediments and allows more decomposing organisms. It is important to consider the results of the clearing of organic matter which affects to fish resources in coastal waters. Keywords: sediment fractions, porosity, teluk penyu
Smart-Urea-Controlled-Release-Nitrogen-Fertilizer Menggunakan Plastik Biodegradable Poli Asam Laktat Sebagai Carrier
Authors: Kaavessina Mujtahid , Husnabilqis Chitra , Hardiyanti Meylani Tri 
Published: February 2021

<p>Poly lactic acid is a polymer that has been developed as an alternative to substitution of conventional polymers. The properties of this polymer are biodegradable in nature and non-toxic substances. These polymers potentially can be used as a matrix for urea carries. The aim of this research was to synthesize poly lactic acid in a low molecular weight. This product can be used as a matrix that urea release controller during the process of fertilization. The methodology consisted of two stages. The first stage was polycondensation of lactic acid and degradability test. Lactic acid was mixed with SnCl2 catalyst 0.1% and heated to 138oC for 24 hours. The second stage was producing in the form of Smart Urea Controlled Release Nitrogen Fertilizer (CRNF). Urea was dissolved in poly lactic acid through a heating process at 150°C to dissolve urea with variation in urea concentration weight of 0.5%; 0.1%; 0.15%; 0.2%; 0.25%; 0.3% and CRNF granulation processes. Finally, the mixture was granulated in ambient temperature. Chemical analysis was done the molecular weight of poly lactic acid. The relationship between intrinsic viscosity and molecular weight was used. The IR spectra (FTIR) was used to fine molecular structure. The release testing of urea from the matrix of poly lactic acid uses UV-VIS Spectrophotometer. The results showed that the average molecular weight of poly lactic acid is 1149.49 g /gmol. FTIR spectra of CRNF with variation in urea concentration weight showed the presence of groups owned by poly lactic acid and urea. The peaks are</p><p>1627.03 to 1629.92 cm-1 for the -NH group and 3478.77 to 3498.06 cm-1 for group -OH. The existence of these groups proves the existence of urea in CRNF. The release of urea from poly lactic acid occurs by diffusion. It can be seen, when urea in CRNF form immersed in water, the concentration of urea in water increase as well as the increasing immersed time.</p>
Phase Control of TiO2 Prepared by TiCl4 Hydrolysis and Electrochemical Method
Authors: Nur Adrian , Jumari Arif , Fajaroh Fauziatul , Nazriati Nazriati 
Published: February 2021

<p>The phase structure of TiO2 dependent on applications. It is importat to develop an effective method to control the phase structure of TiO2. In this study, the TiO2 was synthesized by TiCl4 hydrolysis method. The control of hydrolysis was done by electrochemical method in a cell consisting of two plate carbon as electrodes. The electrodes distance was set to 2.6 to 4 cm and immersed in solution at dimensions of (5 ×</p><p>2) cm. The electrodes were connected to the positive and negative terminals of a DC power supply for 1 to 2.5 hours. The voltage was varied from 5 to 15 V at constant stirring and room temperature. The resulted suspension was aged for 48 hours. The solution was</p><p>filtered. The powder dried directly in an oven at 150°C for 2 hours, washed 2 times, and dried again 60 °C for 6 hours. In this work, the voltage, electrode distance, and TiCl4 initial concentration can control the phase structure of TiO2.</p>
Chromium Metal Biosorption Using Peanut Shell Adsorbent
Authors: Annida Siti , Inayati Inayati , Setiawati Fera 
Published: February 2021

<p>One of the negative effects of the industrial growth is the presence of hazardous waste such as heavy metals. Chromium (VI) is a heavy metal which acts as the pollutant for the environment. Chromium concentration in water can be reduced using some methods. Adsorption is the most favorite method. Some of the biomass can be processed into adsorbent. This work was aimed to produce biosorbent from peanuts shell. The adsorbent was then used to adsorb chromium contented in water. Sodium hydroxide solution 0.5 M was used to activate peanut shell. Produced biosorbent was characterized using Fourier Transform Infrared Spectroscopy. The results showed that optimum condition for chromium adsorption was achieved at 30 minutes contact time with maximum adsorbed chromium of 0.022 mg/g adsorbent. The adsorption mechanism was in a good agreement with Langmuir isotherm.</p>
Optimization of Cow’s Milk Processing into Milk Soap Bar on Small-Medium-Micro Enterprises (UMKM)
Authors: Susanti Ari Diana , Saputro Sulistyo , Wibowo Wusana Agung 
Published: February 2021

<p>The quality and quantity of cow’s milk produced were determined by the genetic, food, age, milking processing, and the treatment of cattle. The storability of fresh cow's milk tends to be short. Therefore, it is necessary to find ways to extend the life time of fresh cow's milk, one of which is by processing fresh cow's milk into other products, such as milk soap bar. The purpose of this study was to determine the appropriate method of milk soap bar production in home industries capacity and to formulate composition of vegetable oils and fresh cow's milk. The milk soap bar obtained then was analyzed in several laboratory tests such as acidity test (pH), moisture content, free alkaline content, and foam stability. Based on the research, it is turned out that the appropriate method of milk soap bar production was the cold process. The optimum formula is olive oil (11%), coconut oil (22%), palm oil (22%), fresh cow's milk (33%), and NaOH pellets (12% - equivalent to 9.2 N). The free alkaline content will decrease according the curing time. Simpler economic evaluation obtained that the production cost of milk was Rp.6,711.22/package of 80 grams of milk soap bar. Milk soap bar is sold for Rp. 7,000.00 will provide 87.96% after-tax of ROI, 11.7</p><p>– month of POT, and 65.31% of BEP.</p>
Glucomannan sponges: Effect of different amount of SLS and Sodium Hydroxide.
Authors: Fadilah Fadilah , Trianto Shidiq , Prakoso Tri Nova 
Published: February 2021

<p><strong>Abstract.</strong> An attempt to increase the economic value of porang flour was made by utilizing it for making of sponge. The sponge was made by direct foaming of glucomannan solution with the addition of SLS and NaOH. Dried sponge were obtained through freezing-thawing process followed by drying. The effect of amount of SLS and NaOH were investigated. It was found that increasing amount of SLS and NaOH made the cell size of the sponge smaller. While there was no tendency for swelling degree accordance to the various amount of SLS, the increasing amount of NaOH caused in increasing the swelling degree.</p><p><strong> </strong></p><p><strong>Keywords</strong>: sponge, glucomannan, sodium laureth sulphate (SLS), sponge cell size, swelling degree.</p>