Indonesia Conference Directory

Corresponding Author
Marie Najoan

Institutions
Faculty of Animal Husbandry
Sam Ratulangi University

Abstract
The aim of this research was to determine the nutrient content and characterize bioactive compounds of Goroho banana (Musa acumunafe sp) stem meal fermented with Trichoderma viride. Parameter meassured were: proximate analysis, amino acid, phytochemical, antioxidant potency of goroho banana (Musa acumunafe sp) stem meal fermented. Data were analyzed by descriptive method. Results showed that crude protein 4.86%, crude fiber 22,03, crude fat 0.94, Ca 0.42, P 0.18 and gross energy 3156,67 Kkal/kg. Amino acid were HPLC analysis demonstrated that was composed of 16 amino acids. Seven of them were essential amino acids; lysine (0.41 %) histidine (0.23 %), leucine (0.56 %), threonine (1.13 %), valine (0.11%), methionine (0.11 %), isoleucine (0.41 %), phenylalanine (0.39 %), and nine of them were non-essential amino acids; serine (0.31 %), aspartic acid (0.56 %), arginine (1.13 %), proline (0.38 %), glutamic acid (0.70 %), glycine (0.33 %), alanine (0.34 %), and tyrosine (0.30 %). Phytochemical screening by color visualization showed the presence of flavonoid 0.06 % (w/w) and analisys by tritrimetry tannin 0.01 % (w/w). Vitamin C and Vitamin E compound analysed by HPLC was Vitamin C ( Ascorbat acid ) 437 mg/ kg and Vitamin E (Tocoferol) < 0.01 mg/100 gram. It can be concluded that Goroho banana (Musa acumunafe sp) stem meal fermented with Trichoderma viride can be used as feed alternative.

Keywords
Keywords: goroho banana stem, nutrients, bioactives, feed alternative

Topic
Animal Nutrition and feed technology

Link: https://ifory.id/abstract/c6LBnkNd4Zqu

Corresponding Author
Muhammad Ihsan Andi Dagong

Institutions
Animal Husbandry Program Study, Animal Science Faculty of Hasanuddin University

Abstract
The purpose of this research was to determine the characteristics of qualitative of Gaga chicken in Baranti and Pancarijang Distric of Sidrap Regency. 170 birds of adult chickens Gaga (115 males and 55 females) used as a sample, taken by purposive sampling. The qualitative characteristic observed were feathers color, feathers pattern, flickering feathers, shank colour, comb shape, cuping color and eye color. The data were tabulated by sex and analyzed descriptive statistically. The results showed that the qualitative characteristics of males and females were dominated by colored category feather (ii) and recessive in white feather (I_). The qualitative qualities of the dominant male gaga pattern were the wild feather pattern (e +), whereas in females were dominated by black feather pattern (E_). Single comb shape and the red cuping colour is dominant in Baranti and Pancarijang District. The heterogenenity of eye colour and shank colour at both District still high.

Keywords
Fenotype variation, feathers color, comb variation, Gaga chicken

Topic
Breeding and livestock production

Link: https://ifory.id/abstract/9r2PYqDpmeTB

Corresponding Author
Muhammad Ihsan Andi Dagong

Institutions
Animal HusbandryStudy Program, Animal Sciences Faculty of Hasanuddin University

Abstract
Complex Vertebral Malformation (CVM) is a genetic defect due to an autosomal recessive gene in dairy cows that causes anatomic deformation especially in the cervix and thorax in the spine, rib reduction and bone shortening in the front legs. The purpose of this study was to identify the distribution of recessive alleles from CVM in the dairy cow population in Enrekang District using the PCR-PIRA method. A total of 80 DNA samples collected from blood samples from FH dairy cattle from the Enrekang District Animal Husbandry Center (50 samples from Cendana District and 30 samples from Angeraja District) were extracted and amplified by PCR-PIRA technique, then PCR products were cut with the Pst1 restriction enzyme. The identification of the CVM carrier allele is calculated based on the genotype frequency and the allele. The results obtained from this study were that there were no CVM recessive alleles found either in Cendana District or in Angeraja District. The results of this study concluded that there were no dairy cows with carier genotypes (heterozygotes) in the dairy cow population in Kab. Enrekang, with normal CVM frequencies fixed on allele C (normal cattle) (100%).

Keywords
CVM, alleles frequencies, genetic defect, dairy cattle, PCR-PIRA

Topic
Breeding and livestock production

Link: https://ifory.id/abstract/v6YTAfa3Qyut

Corresponding Author
Rodliyah Khuzai

Institutions
Universitas Islam Bandung

Abstract
Abstract, Ismail Raji al-Faruqi is well known as a pioneer of the Islamization of Knowledge with ideas that are brilliant enough to make the religious sciences and modern sciences integrated. This is done to overcome the stagnation of Muslims in various problems. The article with the title "The Thought of Ismail Rajis al-Faruqi and its influence on Western Civilization and Islam" aims to explore the extent The Thought of Ismails Raji al-Faruqis and the influence on Western and Islamic civilizations. This scientific work is a Literature Study using descriptive-analytic-critical method with the theory of Phenomenology and History. The results of this research are: First, the birth of religious studies in the West as an interfaith dialogue; Second, the birth of integrative Islamic studies according to the demands of the times in the fields of education, economics and art; Affirmation of the meaning of Tawhid which is the essence of Islamic civilization.

Keywords
Tawhid, Dialogue, Religious Studies, Integrative

Topic
Communication of Islamic Broadcasting

Link: https://ifory.id/abstract/G6jCHqtBPfwg

Corresponding Author
Kiki Zakiah

Institutions
a) Fakultas Ilmu Komunikasi, Universitas Islam Bandung
Jalan Tamasari No. 1 Bandung 40116, Indonesia
* kikizakiahdarmawan[at]gmail.com
b) Fakultas Ilmu Komunikasi, Universitas Islam Bandung
Jalan Tamasari No. 1 Bandung 40116, Indonesia
* askuri.fai[at]gmail.com
c) Fakultas Ilmu Komunikasi, Universitas Islam Bandung
Jalan Tamasari No. 1 Bandung 40116, Indonesia
* dianwidyaputrisy[at]gmail.com

Abstract
The Principal of SMK YPC Cintawana realizes that students experience communication barriers such as the ability to interact, present and express themselves either directly or through the media even though the ability to make communication media products is reliable. Problem solving offered by the PKM team is direct and indirect communication literacy education (media).The method of forming communication literacy groups through three stages of selection. The first selection tested communication knowledge on 50 students. 20 people have the value required to attend training. For two days students were given communicative communication skills, media literacy, and vlogs. The material was delivered with lecture, discussion and role playing methods. Where as communicative vlog material also uses practice methods. The results of the training are retested with a test of knowledge and product results. Selected 7 students with good grades. They were included in radio announcer training organized by Community Radio Unisba and TV journalism training held by CNN Bandung in Trans Studio.The results of this PKM have formed a media literacy group at SMK YPC that functions to develop communication skills, create media products, spread them to other students through social media. The YPC Vocational School also, with this group, activated the school TV and began reactivating the school radio. The output of PKM is an International Seminar article (SoRES), documentation of activities on You tube and news of activities in PR Daily.

Keywords
Group, Communication, Literacy, Media

Topic
Communication

Link: https://ifory.id/abstract/aGZ6nHvBy9WA

Corresponding Author
Agung Rakhmat Gumilar

Institutions
a) Electrical Engineering, Telkom University, Jl. Telekomunikasi Jl. Terusan Buah Batu No.01, Sukapura, Kec. Dayeuhkolot, Kota Bandung, Jawa Barat 40257

Abstract
Internet Of Things (IoT) is a technology that use internet network that allow control and communication between several objects. This paper has designed an IoT system to control and monitoring fish feeding, clarity and water levels in aquarium. The IoT module uses ESP8266. The purpose of this Final Project is to design an IoT system to control fish feeding automatically and manually through the Blynk application, with the amount of automatic feeding every 3 hours by 9 grams which has a maximum delay of 0.9s with an average delay of 0.66s, whereas for manuals there are two choices for the amount of food expenditure, namely 5 grams and 11 grams which have a maximum delay of 1.17s with an average delay of 0.75s. This system can also read the condition of the availability of the amount of feed with a maximum error reading weight of 36 grams and an accuracy of 94%. Reading the condition of water clarity, and water level in the aquarium, Reading the condition of water clarity have an accuracy of 70%, and the height of the water in the aquarium has an average error value of 0,13cm and an accuracy of 87%.

Keywords
Smart Aquarium, Internet Of Things, IoT Module

Topic
Electrical Engineering

Link: https://ifory.id/abstract/EWv3ebKNhwRd

Corresponding Author
Hj. Misna Ariani

Institutions
Economics Faculty of Balikpapan University

Abstract
In the digital age 4.0, communication is one of the dominant and important in organizational activities. With good communication will provide work motivation. In addition to communication and motivation, a comfortable and conducive work environment is also a factor for companies and organizations related to work performance of the State Civil Apparatus (ASN). The data collection method was carried out by distributing questionnaires and interviews with 38 employees. The analytical tool used is Path Analysis, with a significance level of 5%. The results show that the first line of communication has a positive and significant influence on work motivation. Likewise the work environment has a positive and significant influence on ASN work motivation. In the second path, communication does not significantly influence work performance, but has an indirect effect on work performance through work motivation. The work environment significantly influences work performance. In addition, work motivation also has a significant influence on work performance. Thus it can be concluded that communication and work environment influences and is able to increase work motivation and work performance for the State Civil Apparatus in the Planning, Research and Development Agency to continue to develop and improve work performance Penajam Paser Utara District.

Keywords
Communication, Work Environment, Work Motivation and Work Achievement of the State Civil Apparatus (ASN)

Topic
Management

Link: https://ifory.id/abstract/pQ8gCDFmUnZu

Corresponding Author
Wulan I R Sari

Institutions
Mulawarman University
Department of Accounting, Faculty of Economics and Business, Samarinda, Indonesia
e-mail: wulan.sari[at]feb.unmul.ac.id

Abstract
Ideally, performance measurement data should support decision-making processes. However, it is a challenge for organizations because there are existing factors that have an impact on organizational decision-making processes, such as the type of data, expertise of staff and the public hospital-s commitment to the priority of programs. In terms of learning, data collecting on performance measurement data, such as financial statement, performance reporting on budget and performance on coverage of health services, and patient complaints are important. Therefore, the objective of this study is to investigate data collection processes influence the use or lack of use of data in decision-making. A qualitative approach is used to explore data collecting and use or lack of use of data in decision-making. Results show relationship between competent staff and influencing organizational routines in data gathering and use in the decision-making process. Having staff with appropriate skills and competencies is one of the key factors in ensuring that routines and learning become established in an organization. In contrast, there is a lack of staff competence and skill, which impacts on performance data use in financial statements and performance reporting on budget and coverage of health services. To sum up, organizations need qualified staff to do the right things and to follow the organization-s mission and strategy. This is because organizational learning is not a sudden process but requires the intentional use of different strategies to set it in motion. It requires consistency and learning across the organization.

Keywords
data, organizationa routines, learning, decision-making

Topic
Accounting

Link: https://ifory.id/abstract/3cjLmkDJhq94

Corresponding Author
Dahniar Muhammad

Institutions
Econimic and Business Faculty, Lambung Mangkurat University, Jalan Brigjend Hasan Basry, Banjarmasin, 70123, Indonesia

Abstract
This study aimed to analyze the price of oil palm Fresh Fruit Bunches at PT. Gawi Makmur Kalimantan Banjarmasin in South Kalimantan, specifically to develop cost component information designs and their impacts on Government policies in the oil palm sector. The difference in calculation of cost components between the cost of production of farmers from Permentan Number 14 / Permentan / OT.140 / 2/2013. The effort that must be done in responding to differences in the determination of the cost of production of Fresh Fruit Bunches based on government regulations, oil palm growers and the company, if there is no win-win solution. The research method used consists of (1) Field research, (2) Library research. Research data were qualitative and quantitative. The data analysis technique was in accordance with the determination of the price of FFB through Permentan Number 14 / Permentan / OT.140 / 2/2013, as for the formula used for the calculation of HTBS = K (HCPO x RCPO + HIS xRIS). The sampling technique used judgment / purposive sampling. The object of research was at PT. Gawi Makmur Kalimantan Banjarmasin in South Kalimantan. The results of the study to calculate the cost components included in the cost of FFB production include: plant maintenance costs, indirect costs, unit depreciation costs. The difference in the calculation of the cost components of farmers only compares the total cost of production with the price of production, while the Government calculation is based on Permentan No.14 / Permentan / OT.14 / 2/2013. Efforts that must be made in the difference in FFB pricing if there is no win-win solution are: there is a guarantee of transparency from the sales, both export and local, between farmers and oil palm entrepreneurs. For documents of volume, prices and costs should always be valid, so the data are not presented unilaterally but are known by all parties.

Keywords
Fresh Fruit Bunches (FFB), Price of Production, Production Cost, Oil Palm, South Kalimantan.

Topic
Management

Link: https://ifory.id/abstract/QkENuX2vTz6y

Corresponding Author
Sentosa Sembiring

Institutions
Lecturer Faculty of Law Parahyangan Catholic University (UNPAR) Bandung

Abstract
In the investment law literature explained, in general investors choose an arbitration institution as a place to resolve investment disputes. Based on the reason that investors do not know in detail about the court system in the country where he is investing. Arbitration institutions are chosen assuming these institutions are independent. In Indonesia the Arbitration Institution is regulated in Law Number 30 of 1999 Concerning Arbitration and Alternative Dispute Resolution. In the legal system in Indonesia, investment disputes provide an alternative for investors in determining the choice of where to resolve investment disputes. In Law Number 25 Year 2007 Concerning Investment, explicitly explained the arbitration institution as an institution for resolving investment disputes between the state and investors. When viewed normatively, investment dispute resolution is not an obstacle. However, if the provisions of the arbitration law are further studied, it can cause uncertainty for investors in implementing the arbitration decision, because it does not necessarily allow for an arbitration decision. There must be approval from the Supreme Court. This certainly can lead to legal uncertainty for investors in carrying out investment.

Keywords
Arbitration, Investment dispute, Legal certainty

Topic
Investment and Settlement Disputes

Link: https://ifory.id/abstract/rFEgPhvV7kjC

Corresponding Author
Agus Supandi Soegoto

Institutions
Sam Ratulangi University

Abstract
This study aims to determine strategies to improve consumer purchasing decisions through Product Quality, and Servicescape in the Supermarket business either partially or simultaneously. The study research method used was the quantitative method with multiple linear regression analysis. Three variables measured were Product Quality and Servicescape as an independent variable (X) and Customer Purchase Decisions as a dependent variable (Y). The object of this research was Supermarket business customers as the unit of analysis. The technique of data collection used saturated random sampling with 100 respondents of Supermarket business in Manado City, Bitung and Tomohon as a big city in North Sulawesi. The statistical analysis used classical assumption test and hypothesis testing of z, t, and F with significant level (a) 5% and calculated by Eviews program. The analytical method is descriptive verificative. The results showed both simultaneous and partial Product Quality and Servicescape significantly influence purchasing decisions. Applying the right product quality and Servicescape strategy will increase consumer interest in buying products offered at the supermarkets visited.

Keywords
product quality, servicecape, purchase decisions

Topic
Management

Link: https://ifory.id/abstract/eWUpX2MEzKYR

Corresponding Author
Rahmat Rahmat

Institutions
Departemen Manajemen
Sekolah Tinggi Ilmu Ekonomi Bulungan Tarakan
Tarakan, Indonesia

Abstract
Penelitian ini dilakukan untuk menguji pengaruh langsung brand experience terhadap brand image, brand satisfaction, dan brand loyalty. Populasi penelitian ini adalah mahasiswa di Tarakan. Sampel penelitian ini terdiri dari 128 responden yang ditarik dengan metode nonprobability sampling. Software yang digunakan untuk menguji validitas dan reliabilitas instrumen serta menguji hipotesis penelitian ini adalah SmartPLS 3.0 Professional. Hasil penelitian ini menunjukkan bahwa brand experience berpengaruh langsung secara positif dan signifikan terhadap brand image, pengaruh langsung brand experience terhadap brand satisfaction tidak signifikan, pengaruh langsung brand experience terhadap brand loyalty tidak signifikan, brand image berpengaruh langsung secara positif dan signifikan terhadap brand satisfaction, pengaruh langsung brand image terhadap brand loyalty tidak signifikan, dan brand satisfaction berpengaruh langsung secara positif dan signifikan terhadap Brand loyalty. Selain membahas hasil pengujian pengaruh langsung, peran brand image dan brand satisfaction sebagai variabel mediator juga dibahas dalam penelitian ini. Secara teoritis, hasil penelitian ini berkontribusi dalam pengembangan anteseden loyalitas pelanggan; sedangkan secara pragmatis, temuan penelitian ini dapat bermanfaat sebagai bahan dalam merumuskan strategi untuk meningkatkan loyalitas pengguna Smartphone.

Keywords
brand experience, brand image, brand satisfaction, brand loyalty, Smartphone, SmartPLS

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/9ZmFdE8CrY6B

Corresponding Author
Ahmad Hapiz

Institutions
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang No. 5 Malang 65145, Indonesia

a)Coresponding author : irma.kartika.fmipa[at]um.ac.id

Abstract
Abstract. Carboxymethyl k-carrageenan (CMKC), a derivate product of kappa carrageenan, is one of coating material that is used for nanomagnetite coated production. The important parameter to determining quality of CMKC is degree of substitution (DS). DS value indicated the number of hydroxyl groups that were converted into carboxyl groups. Polarity of synthesis reaction medium affect to the DS value of CMKC that was synthesized. This research was arranged to analyze the effect of synthesis reaction medium polarity on the DS value of CMKC, we was studied the use of isopropanol-ethanol-ethyl acetate mixture at some proportion variation, as synthesis reaction medium, relation between polarity of reaction medium and DS value of CMKC, then determine optimum proportion of isopropanol-ethanol-ethyl acetate, asreaction medium, that was produced CMKC that has highest DS value. This research was done in two step (1) synthesize of cmkc by monochloroacetic acid (MCA) as etherification agent and mixture of isopropanol-ethanol-ethyl acetate as reaction medium (2) characterization of CMKC properties to determine the effect of synthesis reaction medium polarity against DS value. The results showed that reaction medium polarity affect on the value of DS. CMKC synthesis that was done in isopropanol-ethanol-etyl acetate 25:2:3 v/v has the highest DS value, 1.60.

Keywords
Degree of Substitution, Medium Reaction Polarity, Nanomagnetite coating

Topic
Biochemistry

Link: https://ifory.id/abstract/uQ2ALgy3ZVtb

Corresponding Author
widya paramita sari

Institutions
Prodi Pascasarjana(s2) Matematika Universitas Bengkulu

Abstract
IMPROVING CONCEPT UNDERSTANDING ABILITY THROUGH INQUIRY LEARNING WITH JIGSAW METHOD IN ALGABAR LECTURE ABSTRACT Widya Paramita Sari1 *, Saleh Haji12, and Zamzaili2 1 Program Studi Pendidikan Pascasarjana (S2), Universitas Bengkulu, Jl. WR Supratman, Kota Bengkulu 38122, Indonesia *widyaparamitasari86@gmail.com1, * salehhaji@unib.ac.id 2 and *zam.zaili@yahoo.com 3 Abstract. This study aims to determine Improving the ability of understanding concepts through inquiry learning with student jigsaw methods in the Mathematics Education Study Program FKIP Bengkulu University. This type of research is a classroom action research (CAR) that will be conducted in several cycles, namely the planning stage, the implementation stage, the leveling stage and the reflection stage. The subjects in this study were the sixth semester students of mathematics education FKIP Bengkulu University, amounting to 37 students. The results showed that inquiry learning with the jigsaw method can improve students understanding of concept skills. The increase in the average value of students from cycle I to cycle II is 61.89 and 78.37. Keyword: Oncept Understanding Ability, Inquiry learning Model and Jigsaw Method.

Keywords
Oncept Understanding Ability, Inquiry learning Model and Jigsaw Method.

Topic
Mathematics Education

Link: https://ifory.id/abstract/hU9ABqmcMWtX

Corresponding Author
Rendy Wikrama Wardana

Institutions
(a)*. Science Education Program, Universitas Bengkulu, Bengkulu, Indonesia
(b). Science Education Program, School of Postgraduate Studies, Universitas Pendidikan Indonesia, Bandung, Indonesia
(c). Department of Physics, Faculty of Information Technology and Sciences, Parahyangan Catholic University, Bandung , Indonesia

Abstract
Some results on the conceptual change, indicated a discriminate between alternative and scientific conceptions. This could be represented as a medium conceptions, called the intermediate conceptions. Researches on the electromagnetic wave sub-concept generally assessed based on modern physics conceptions, on the other hand it needs to be assessed based on the concept of electricity and magnetism. This research aims to identify and describe category of intermediate conception of third year physics education students in electromagnetic wave sub-concepts. This research used descriptive method. The subjects of this research were 73 third year students in a University of Teacher Training at Bandung. Data collection have been done by essay test and interview. The analyzed data shows that 77% of the students are on ‘lateral intermediate conception-category and none of them were on ‘naïve physics-. Other results showed that the students have difficulty on describing, explaining, interpreting qualitatively about electromagnetic wave sub-concepts.

Keywords
Intermediate conception, Third year students, Physics education, Electromagnetic wave

Topic
Physics Education

Link: https://ifory.id/abstract/vMHaLUeqJtBK

Corresponding Author
Rendy Wikrama Wardana

Institutions
(a)*. Science Education Program, Universitas Bengkulu, Bengkulu, Indonesia
(b). Science Education Program, School of Postgraduate Studies, Universitas Pendidikan Indonesia, Bandung, Indonesia
(c). Department of Physics, Faculty of Information Technology and Sciences, Parahyangan Catholic University, Bandung , Indonesia

Abstract
Some previous research have showed that Physics concept has abstract characteristic, difficult, and complex. This characteristic causes the students to have knowledge, understanding, and various conceptions. Students- various conceptions in Physics learning causes the emergence of discrepancy between alternative and scientific conception called as Intermediate conception. This research aims to description of intermediate conception in learning Physics. This research was qualitative research with literature review design. Data collection was conducted by collecting some literatures either articles or books related to intermediate conception. Data analysis was done by conducting analysis and articles and books synthesis and then drew a conclusion. The research results show that intermediate conception can be described as the conception between alternative conception and scientific conception which represent the pieces of ideas or concepts that have lead to science. Intermediate conception can be categorized into; naive physics, phenomenological intermediate primitives, lateral intermediate conception, and ontological intermediate conception.

Keywords
Intermediate Conception, Learning Physics

Topic
Physics Education

Link: https://ifory.id/abstract/MeqTP43FU9zk

Corresponding Author
Miska Agustina

Institutions
Program Studi Pendidikan Matematika, Universitas Bengkulu, Jl. WR Supratman, Kota Bengkulu 38122, Indonesia

Abstract
The purpose of this study is to improve student learning outcomes in Algebra Abstract by applying a scientific approach assisted by Student Worksheets (LKM). This type of research is Classroom Action Research (CAR) which is carried out in three cycles with research flow, namely planning, observing and reflecting. The subjects of this study were students of the semester 201/20/2019 TA totaling 37 students. The instrument used in this study was the Learning Outcomes Test for Abstract Algebra. The results of this study indicate an increase in each cycle. Judging from the cycles I, II, III, found the average learning outcomes 51.35, 77.02 and 89.59.

Keywords
Learning Outcomes, Scientific Approach, Student Worksheet

Topic
Mathematics Education

Link: https://ifory.id/abstract/te2YZFDp8aN6

Corresponding Author
Zulfia Memi Mayasari

Institutions
Mathematics Department, Bengkulu University

Abstract
Batik besurek is one of Indonesias cultural heritages from Bengkulu Province. This batik is different from another batik in general because it has the characteristics of Arabic calligraphy. There are seven types basic of motifs in batik besurek, one of them is the Arabic calligraphy motif. In this paper explained the development of the pattern of the Arabic calligraphy and rafflesia flower motif in batik besurek. The pattern development is done by applying the fractal principles. The results is a new motif of batik besurek that are expected to enrich the style, shape, diversity of motifs, and enhance the beauty and selling value of the batik itself.

Keywords
batik besurek, fractal principles, characteristic, arabic calligraphy

Topic
Mathematics

Link: https://ifory.id/abstract/p4cg2AQ9DMnL

Corresponding Author
Indra Topik Maulana

Institutions
Prodi Farmasi FMIPA UNISBA, Jl. Ranggagading No. 08 Bandung
1indra.topik[at]gmail.com

Abstract
Spirulina plantesis, Chlorella vulgaris, and Euchema spinosum were three kinds of algae sample that has been cultivated in Indonesia. That three algae were used both as food ingredients, medicinal ingredients, and cosmetics. Until now there has been no official release related to the applicable standard parameters related to algal material. Therefore, this research aims to analyze the content of active compounds and the standardization of algae involved of loss on drying value, total ash content, acid insoluble ash content, water-soluble and ethanol-soluble extractable matter. Phycochemical screening showed that all of the algae sample positively contained alkaloids, flavonoids, and steroids. Standard parameter determination showed that polar compounds contained in all algae were more dominant than semi-polar and non-polar compounds. it could be seen in the value of water-soluble extractable matter which was greater than ethanol-soluble extractable matter. All algae were also rich in inorganic compounds which were indicated by a total ash content of more than 5%. But even so, all algae were indicated safe from dangerous heavy metal content. This can be seen from the value of acid-insoluble ash levels that lower than 1%.

Keywords
Spirulina plantesis, Chlorella vulgaris AND Euchema spinosum, phycochemical screening, ash content, extractable matter

Topic
Drug Discoveries and Development

Link: https://ifory.id/abstract/eVJ8N4EcZkH2

Corresponding Author
zulfi Amri

Institutions
a) Program Studi Magister Pendidikan Matematika PPs UMSU
b) Program Studi Pendidikan Matematika UMSU
c) Program Studi Magister Pendidikan Matematika Universitas Bengkulu

Abstract
A graf called odd graceful graph if there is an injectivemapping f:V(G)→{0,1,2,…,2q-1} such that for each edge xy∈E(G) labeled by |f(u)-f(v)|, and the results willform a label on the edge {1,3,5,…,2q-1} which is bijective. Variabel q is the number of edges. This paper purpose is to construct the formula of odd graceful labelling on the ilalang graph (S_n,3) and it-s variation.

Keywords
Odd Labeling; Ilalang Graph

Topic
Mathematics

Link: https://ifory.id/abstract/yvKJhqkL3Nrg

Corresponding Author
Dian Fita Lestari

Institutions
Jurusan Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Bengkulu
Jl. W.R. Supratman, Kandang Limun, Bengkulu 38371, Indonesia.
email: dianfita[at]unib.com

Abstract
Gunung Kidul is one of the districts in Yogyakarta province that has a long coastline with a substrate of coral (rocky shores) and white sand. One of the beaches with rocky substrate is Indrayanti. The rocky substrates are different from other substrate which have physicochemical factors changes in water and gives its own character for the life of marine organism in intertidal zone. Mollusca as one of the phylum that live mostly in the marine and some are in intertidal zone of marine with coral substrates. This aim of the research to identification the types of mollusca that found in the intertidal zone of the Indrayanti and classifying each species found. This research method by observation and data collection techniques by accidental sampling during low tide. The data in this research are qualitative data that analyzed by descriptive. The result of this research shows that the mollusca phylum which inhabited the intertidal zone of the Indrayanti beach found 4 classes from 7 classes in Mollusca phylum, there are gastropoda, bivalvia, polyplacophora, and cephalopoda classes with a total amount of 83 species. Gastropoda class that dominate of all species are about 69 species or 83,13%, with the most subclass order are caenogastropoda, heterobranchia, patellogastropoda, vetigastropoda and neritimorpha. Polyplacophora class which is a chiton group is found around 8,43% and the remaining species found are bivalves and cephalopoda classes.

Keywords
mollusca, intertidal zone, indrayanti beach

Topic
Biology

Link: https://ifory.id/abstract/wbpBR7MFjtf6

Corresponding Author
Mala Utami

Institutions
Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Bengkulu
Jl.W.R.Supratman, KandangLimun 38317 A Bengkulu, Indonesia.
*e-mail address: asdim[at]unib.ac.id, malautami0598[at]gmail.com

Abstract
SnO2 nanoparticles are n-type semiconductor materials with the band gap of 3.6 eV. These materials have been widely used in various applications, for example transparent electrodes, microsensors, catalysts and resistors. Generally, the synthesis of SnO2 nanoparticles is influenced by several factors such as reactant concentration, capping agent, temperature, stirring and pH of the solution.This study aims to determine the effect of pH variations on the crystallinity and morphology of SnO2 material. This synthesis was carried out using the hydrothermal method for 3 hours at 100 0C with glucose as a capping agent. The effect of pH on the SnO2 nanoparticlesas synthesized was studied using X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). XRD analysis shows that all SnO2 nanoparticles as synthesized relatively high purity and pH variations greatly influence to the crystallinity of the SnO2 nanoparticles. SEM images show that the aggregate formation is strongly influenced by changes in pH of the reaction solution. These results indicate that optimizing the pH of the reaction solution would be an alternative route for controlling the morphology of SnO2 nanoparticles.

Keywords
Nanoparticles, SnO2, Capping Agent, Glucose

Topic
Chemistry

Link: https://ifory.id/abstract/8Mf4d7vKJDAE

Corresponding Author
SHELLY TRIHASARI

Institutions
(a)SMANKO Provinsi Bengkulu
(b)Universitas Bengkulu
(c)SMKS 10 Telekomunikasi Kota Bengkulu

Abstract
This study aims to determine the effect of the Problem Based Learning model with Scientific Approaches in improving students problem solving abilities. This study uses a quasi-experimental research design using pretest and posttest. And by using the Ancova test. The subjects in this study were students of class X SMAN Kebakakatan Sports Bengkulu Province, with a sample of 21 people from 110 students. The results of this study are that there is a linear effect of the covariates initial ability to solve problems on the final problem solving abilities of students who are taught using the Problem Based Learning model with a Scientific Approach. With a statistical value of F = 6.667 and a significance value of 0.014.

Keywords
Problem Based Learning, Scientific Approach, Problem Solving Ability

Topic
Mathematics Education

Link: https://ifory.id/abstract/YT2HDFmUxK39

Corresponding Author
Dadang Juandi

Institutions
Universitas Pendidikan Indonesia

Abstract
The purpose of this study is to improve the achievement of in-service mathematics teachers in pedagogical and professional competences through professional development program by using a Cycle Pedagogical Problem-based learning. The research subjects consisted of 58 in-service mathematics teachers from a number of senior high schools from five districts in West Java. The research instrument consisted of observation guidelines, interview guidelines, teacher competency tests, and self-efficacy scale. Mathematical pedagogical problems presented to trainees in a number of cycles, which include some mathematical material that is relevant to the 2013 curriculum. The results of data analysis show that overall the achievement of pedagogical competency is better than the achievement of professional competency. Pedagogical competency is achieved in the high category, and professional competency is achieved in the medium category. The achievement of self-efficacy found that the majority of teacher candidate is in the positive category. Judging from the differences in region of origin it was found that there were no significant differences in pedagogical competency nor professional competency.

Keywords
Pedagogical Competency, Professional Competency, Pedagogical- Problem Solving Cycle, Self-efficacy.

Topic
Mathematics Education

Link: https://ifory.id/abstract/gQN3MuZG9C4H

Corresponding Author
Ignatius Sudarsono

Institutions
(a)Civil Engineering Department, Langlangbuana University
Jl. Karapitan 116, Bandung 40261, Indonesia
*ignazsd2[at]gmail.com

Abstract
Pusjatan-s LWD is a equipment that is purposed to measure the structural strength of a pavement system especially unpaved roads. When the load of LWD falls, it generates vibration recorded by geophones. By using the principles of vibration theory then resulting deflection can be calculated. The deflection value is used for the calculation of modulus elasticity of soil using Boussinesq formula. The LWD is applied to Pusjatan-s yard in Bandung for sample of subgrade, where in each location we have taken ten data using LWD and DCP on the same tested points. The reason of comparing between LWD and DCP is that the former equipment used to measure the subgrade structural strength. The test results are a modulus elasticity then correlated with each other. The test results obtained the determination coefficient r2 = 0.7558, this means that the correlation value is 75.58% determined by the modulus of elasticity value of the DCP measurement, whereas on hard soil the correlation between modulus of elasticity of LWD with DCP Index, with the results r2 = 0.9684 or 96.84%. This indicates a strong correlation. This finding comes to the conclusion that Pusjatan-s LWD can be used to test structural strength of subgrade

Keywords
Pusjatan-s LWD, DCP, Soil strength

Topic
Civil Engineering

Link: https://ifory.id/abstract/qK9WTn6YByHP

Corresponding Author
Andjar Prasetyo

Institutions
1 Research and Development Agency of City of Magelang
Magelang City, Indonesia
2 Research And Development Agency, Ministry Of Internal Affairs, Jakarta, Indonesia

Abstract
Magelang City with limited natural resources encourages its regional government to be able to develop its existing potential from renewable energy. One of the works that has been produced, namely Smart On Grid Actuator (SOGA) is the result of the development of the Research and Development Agency for renewable energy. Meanwhile Public Street Lighting in the City of Magelang still uses electricity from the National Electricity Company. This study aims to analyze the policy and economy due to the application of SOGA on public street lighting in the city of Magelang. The primary data source was obtained from SOGA, while the secondary source was the amount of Public Street Lighting in Magelang City. The analysis was carried out with qualitative and quantitative descriptive. The results obtained from SOGA data are predicted to be 10-20% for the efficiency of electricity use. If it is applied to public street lighting in the city of Magelang, the efficiency of the economy is significant, but the implementation of SOGA is very conducive to regional policies.

Keywords
Policy, Economy, SOGA Model, Public Road Lighting Renewable Energy

Topic
Economics

Link: https://ifory.id/abstract/J7fqFNHpXPME

Corresponding Author
Siegfried Siegfried

Institutions
Institute of Road Engineering
Civil Engineering Department, Univ of Langlangbuana

Abstract
Falling Weight Deflectometer (FWD) is the standard equipment used for the analysis and evaluation of flexible pavement. The number of this equipment is very limited in Indonesia. For a country owned 48,000 kms of road it is quite important to have an alternate equipment of FWD. Institute of Road Engineering (IRE) has performed the Light Weight Deflectometer (LWD) for the use in low to medium traffic roads for both evaluation and design of overlay. The study has done to compare these two equipment focusing on three parameters i.e Effective Structural Number (SNeff), Surface Modulus (Sm) and prediction of Subgrade Modulus (Esg). There are 30 points tested using FWD and LWD nearly in the same time on the IRE campus that is classified as low traffic volume road. Each point is then analysed to calculate SNeff, Sm, and Esg using the deflections derived from both of FWD and LWD tests. It is found that the differences of these parameters are not too significant and falls below 10%. This findings go to the conclusion that the use of LWD of IRE version is acceptable to be used for the analysis of the flexible pavement especially for low to medium traffic roads.

Keywords
FWD, LWD, low to medium traffic roads, SNeff, Surface modulus.

Topic
Civil Engineering

Link: https://ifory.id/abstract/mMY7aXC6xbLE

Corresponding Author
Alvika Meta Sari

Institutions
(a) Department of Chemical Engineering, Engineering Faculty , Universitas Muhammadiyah Jakarta
Jl. Cempaka Putih Tengah 27, Cempaka Putih, Jakarta Pusat, 10510. Indonesia
* alvika.metasari[at]ftumj.ac.id
(b) Department of Chemistry, Universitas Negeri Jakarta.
(c) Department of Mechanical Engineering, Universitas Muhammadiyah Jakarta
Jl. Rawamangun Muka, Rawamangun, Pulo Gadung, Jakarta Timur, 13220, Indonesia

Abstract
Koi fish is one of high economic value fish because of its beautiful body shape and colour. Its colour is influenced by the protein and carotenoid-rich feed. The sources of protein and carotenoid used as supplement were chitosan and chlorella. The purpose of this study to evaluate the effect of protein and carotenoid-rich feed using chitosan, Nanochitosan emulsion and chlorella on growth performance, water quality and protein retention of Koi Fish. Experiment was conducted by preparing the nanochitosan emulsion and formulated as Koi fish feed. The growth performance and protein retention of Koi fish and water quality were evaluate using ANAVA. In the experiment, Koi fish (mean initial wet weight 1.49 g) were fed with three diets (control, chitosan and nanochitosan emulsion) in triplicate for 60 days. The result shows that growth performance of Koi fish fed nanochitosan emulsion diet was higher (P<0.05) than other diets. Koi fish in chitosan diet group was higher (P<0.05) than of Koi in control but no statistical difference was found in Koi in nanochitosan emulsion diet groups with protein retention 57.03 ± 1.76 and the water quality showed Ph 7.32, DO = 6.23, NH3 = 0.03, NO2 = 0.0075 and NO3 = 0.03 mg/L.

Keywords
growth performance, nanochitosan emulsion, protein carotenoid rich fish feed, protein retension, water quality

Topic
Chemical Engineering

Link: https://ifory.id/abstract/c7HNJK2XwRxu

Corresponding Author
Moch Charis Hidayat

Institutions
Islamic Education Department, Faculty Of Islamic Studies, Muhammadiyah Surabaya University, Indonesia

Abstract
Quality education is one that integrates several fields of activity in synergy namely administrative, instructional and guidance and counseling. This research aimed to transform the knowledge into the education system integrally. The type of research used is field research (field resources) with a quantitative approach. In this research, there were two variables, namely Guidance and Counseling as independent variables, and student achievement as a dependent variable. The researcher conducted a study in MTs Negeri I Bojonegoro and the researchers selected grade 7 students as population, and assigned 10% of them as samples. Techniques in sampling in the form of random samplin. The source of this research data obtained by the method of observation, interview, questionnaire and documentation. The results of this research showed that counseling and guidance services affect the process of improving student achievement. This is based on the questionnaire score data that has been calculated with the product moment formula that results in a correlation index value (rxy) of 0.681. This result proved larger than the value at the significance level of 5% of 0.361 and 1% of 0.463. The results of this study indicate that there is influence between Counseling Guidance on the process of improving student achievement in MTs Negeri I Bojonegoro.

Keywords
Counseling Guidance; Learning Achievement; Student

Topic
Psychology

Link: https://ifory.id/abstract/38CFeB7YUZuW

Corresponding Author
Zulfikar Bagus Pambuko

Institutions
a Department of Nursing, Faculty of Health Sciences, Universitas Muhammadiyah Magelang,
Indonesia
b Department of Medical Laboratory Science, Faculty of Nursing and Health Sciences,
Universitas Muhammadiyah Semarang, Indonesia
cDepartment of Pharmacy, Faculty of Health Sciences, Universitas Muhammadiyah Magelang, Magelang, Indonesia
dDepartment of Pharmacy, Faculty of Pharmacy, Universitas Ahmad Dahlan, Yogyakarta, Indonesia
eDepartment of Pharmacy, Faculty of Medicine and Health Sciences, Universitas Muhammadiyah Yogyakarta, Yogyakarta, Indonesia
fMuhammadiyah Research Network for Plasma Medicine (M-Plasmed), Semarang, Indonesia
gResearch Center for Experimental Wound Healing, Universitas Muhammadiyah Magelang,
Indonesia
*e-mail : nasrudin[at]unimus.ac.id

Abstract
An investigation was carried out to determine the effect of plasma activated Aloe vera slice on for wound contraction in a small animal model mimicking a clinical setting. An atmospheric plasma jet using medical grade argon gas as a carrier gas was developed. Twelve experimental mouse Balb c, male, age 7-8 weeks, were classified into 4 groups, namely, Control (C), Aloe vera slice alone (A), Plasma activated Aloe vera slice with distance 10 mm (PAV-10) and Plasma activated Aloe vera slice with distance 20 mm (PAV-20). Aloe vera slices with thickness about 2 mm was prepared. They were treated by atmospheric plasma jet with distance 10 mm and 20 mm during 2 minutes before their application. Visual evaluation of wounds was conducted for 14 days. Wound contraction was calculated using a mathematic formula based on wound area measurement supported by computer software Scion. This investigation showed that wound contraction percentage in groups containing Aloe vera were higher than that in control group. This investigation was also showed that during proliferative phase, wound contraction percentage in PAV-20 was higher than that in PAV-10. On days 4-7 whilst that in the first group was slightly lower than that in the control, that in the second group was higher than that in the control. PAV-20 may have ability to accelerate wound healing, while PAV-10 may have ability to impede it. It was concluded that different characteristic of plasma activated Aloe vera slice may cause different effect on wound.

Keywords
Plasma Medicine; ROS; RONS; Aloe vera; wound contraction

Topic
Health Science

Link: https://ifory.id/abstract/qWDr98JxHa2g