Indonesia Conference Directory

Corresponding Author
Siti Suriani Othman

Institutions
Universiti Sains Islam Malaysia,
Universiti Tuanku Abdul Rahman

Abstract
This paper discusses about fake news from the Islamic perspective. Derived from previous scholarly discussions and Islamic manuscripts on fake news, this paper attempts to provide what Islam has to say about fake news. The discussion starts with scholarly literature about fake news to understand the concept of fake news, followed by the issue of fake news in news sourcing. More emphasis is given to online news due to the fact that fake news emerges abundantly and easily on online platforms than before. Besides that, the role of technology in reducing or/and increasing the threat of fake news in modern communication is also discussed. The final part of the paper discusses specifically on fake news from the Islamic perspective. Some suggestions of best practice are also provided, based on Islamic perspective argument, for journalists or citizen journalists to ponder. We argue that best practice in journalism pertaining to fake news is best derived both from religious manuscripts and journalism ethical practice.

Keywords
Fake news, Islamic perspective, online journalism, best practice in journalism

Topic
Communication

Link: https://ifory.id/abstract/6rfWtKLzNeZk

Corresponding Author
Wisnu Aryo Dewanto

Institutions
Universitas Surabaya Law Faculty

Abstract
Offenses in the high seas over the exclusive economic zone are increasing rapidly as violators take advantage of the legal vacuum in the region. 188 nautical miles of high seas and exclusive economic zones outside the territorial sea territories of coastal countries are no-mans-land. Article 55-58 jo. Article 87 UNCLOS 1982 created two different legal regimes in the same place. Above the surface of the sea water is declared as the high seas, while the water and natural resources below it follow the regime of the exclusive economic zone. There have been two major incidents in the region recently, namely the crashing of an Indonesian warship by a Vietnamese Government ship and the oil transshipment activities carried out by two foreign-flagged vessels. Violations committed on the high seas, according to UNCLOS 1982 in which the countrys military vessels can act, are limited to those set out in Articles 99 through 109. Beyond these articles the Indonesian Government has difficulty implementing its national legal rules because they have collided with the status of the high seas which the state cannot claim. This paper aims to analyze in depth the legal vacuum in UNCLOS 1982 and its impact on coastal countries.

Keywords
high seas, exclusive economic zones, offences, legal vacuum

Topic
Maritime, Environment and international policy

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

Corresponding Author
Aulia Rifai

Institutions
Hasanuddin University Law School, Tamalanrea, Makassar 90245

Abstract
Historically, cabotage comes from the French language which means small ship. This term is from the Spanish language from the word "Cabo" which means "Cape" (cape), meaning from headland to headland on one beach, for example transportation from one headland to another headland on a different beach, for example from Tanjung Priok in Jakarta to the city of Banjarmasin . Indonesia is one of the countries that applies the cabotage principle as seen in Article 8 paragraph (1) of Law Number 17 Year 2008 concerning Shipping which states that domestic sea transportation activities are carried out by national sea transportation companies using Indonesian-flagged vessels and manned by crew members of Indonesian citizenship, furthermore, paragraph (2) states that foreign vessels are prohibited from carrying passengers and / or goods between islands or between ports in Indonesian waters. However, in 2015, the government issued a Minister of Transportation Regulation PM Number 121 of 2015 concerning Provision of Facilities for Tourists Using Foreign Flagged Cruiseships where consideration of the issuance of this Minister of Transportation Regulation is to increase visits and move tourist trips so that tourists need to be provided convenience. using foreign-flagged cruises. Ports that were opened to be a stopover for cruise ships are the Ports of Tanjung Priok, Tanjung Perak, Belawan, Makassar and Benoa (Bali). Article 3 This Regulation of the Minister of Transportation states that cruises can transport tourists at domestic ports for travel, starting from domestic origin ports to tourist destinations to return to the port of origin, as long as the trip is part of tourist trips to and from the territorial waters. Indonesia. Seeing the above provisions, violating Article 8 paragraph (1) and (2) of Law Number 17 Year 2008 concerning Sailing because foreign cruise ships are allowed to transport passengers at the original port in Indonesia, then go to the destination port, back again to the port of origin of departure . The tour destinations are sufficient to be reported to the Head of the Kesyahbandaran and the Port Authority (KSOP). This study aims to determine (1) the relationship between the provisions in the Minister of Transportation Regulation No. 121 of 2015 concerning Provision of Facilities for Tourists by Using Foreign Flagged Cruiseships connected with Law Number 17 of 2008 concerning Shipping and (2) forms of regulation cruise ships in sailing in Indonesian waters in order to increase tourism. The method used in discussing this study is a normative legal research method that studies the legislation in relation to the unity of the national domestic transportation legal system. Conclusions based on the results of the study are (1) provisions in the Minister of Transportation Regulation No. 121 of 2015 concerning Provision of Facilities for Tourists by Using Foreign Flagged Cruises contrary to Article 8 pa

Keywords
cabotage principle, tourism

Topic
Maritime, Environment and international policy

Link: https://ifory.id/abstract/7EdZmaRxTNXj

Corresponding Author
Deny Tri Ardianto

Institutions
1, 2, 3Visual Communication Design, Universitas Sebelas Maret, Surakarta, Indonesia
4 Extension and Communication Agriculture, Universitas Sebelas Maret, Surakarta, Indonesia

Abstract
Online catering business is one of the promising business opportunities. In big cities, such as Jakarta and Surabaya, this business is able to provide an alternative for office workers, households and even schools to continue to enjoy home-cooked food according to taste with many choices or variants. In the Surakarta area, online catering business has not yet become an option, even though the catering business in Surakarta is developing quite rapidly. A number of catering entrepreneurs in Surakarta said that the lack of understanding related to online transactions and management of management in the online catering business was an obstacle in the development of that direction. This study intends to map the potential of catering businesses in the Surakarta region by referring to the potential use of social media in the online food ordering business in Surakarta in 2017-2019. The result is, Surakarta has a huge market potential for the development of catering from manual to digital systems, especially online. This refers to the high use of online delivery services, such as Gojek and Grab, which until now has a quite high service for food traffic. Thus, catering businesses in Surakarta basically have the potential to be developed towards online catering through strengthening managerial capabilities of online businesses and technical understanding in social media.

Keywords
catering, online, communication technology

Topic
Business

Link: https://ifory.id/abstract/UhfkTbjm2Gyd

Corresponding Author
Deny Tri Ardianto

Institutions
Faculty of art and Design, Visual Communication Design , Surakarta, Indonesia

Abstract
Color has a profound influence on everyday human life, both in the world of graphic design, painting, print media, interior design, presentation, politics and of course also on web design. Color is an interesting field to study because color affects psychological, cognitive, taste and color gives identity to each object it attaches. The color composition can be likened to two sides of the blade, if it is right to combine it will give a positive impression and if wrong in combining it will give a negative impression to people who see it. In this study the author will analyze the color composition on the website of world-class universities (University of Indonesia, Gajah Mada University, Bandung Institute of Technology) and try to translate the meaning behind the color of the website based on color theory based on western culture.

Keywords
Color, Color composition, Web

Topic
Design

Link: https://ifory.id/abstract/UMdCD8vBF6eW

Corresponding Author
Anung Studyanto

Institutions
1 Department of Interior Design, Faculty of Arts and Design, Sebelas Maret University, Indonesia
2 Department of Interior Design, Faculty of Arts and Design, Sebelas Maret University, Indonesia
3 Department of Crafts/Textile, Faculty of Arts and Design, Sebelas Maret University, Indonesia

Abstract
In Tumang village as a center for copper handicrafts, the problem that arises is the abundant metal waste but has not been used optimally. The aim is to develop a roster design made from metal waste with consideration of aesthetic appearance and commercial value. The method used is related to qualitative research and visual creation. Results and discussion, namely the exploration stage of design development include 1) Collecting waste, 2) Tidying the waste, 3) Arranging waste and finding the desired form as a roster, 3) Welding waste, 4) Finishing waste. The method of creation found was 1) Relying on the aesthetic sensitivity of the maker in composing pieces of metal waste into abstract shapes. 2) Relying on the association of forms based on the experience of the creator so as to bring up analogous forms of flora, fauna, and others.

Keywords
exploration, development, design, roster, metal waste

Topic
Design

Link: https://ifory.id/abstract/WYfgmLKy83uw

Corresponding Author
Anung Studyanto

Institutions
Faculty of Arts and Design, Sebelas Maret University, Indonesia

Abstract
Batik lukis (hand painted batik) products as interior aesthetic elements have not been widely found. Batik products for interiors that are currently developing are in the forms of bed linen, pillow cases and tablecloths, and these products are still using traditional batik techniques and motifs. Some of batik lukis found are in the forms of wall paintings, while other products for aesthetic elements with the approach of modern painting concept have not been commonly found / produced in Sondakan batik center in Laweyan District, Surakarta. The purpose of this study was to examine in depth regarding the potential of batik lukis to be developed into products with added value by developing its unique motifs as a differentiating factor from competitor products, thus also providing added value to the craftmen as well. The output targets that have been achieved are: 1) concepts and designs of the resulted motifs; 2) Development Draft to manage the existing potential through product innovation; 3) References to create more varied product concepts and designs and to make them unique products that are demanded by the market; This research used descriptive qualitative method, carried out in the following steps of: 1) identifying various batik products that are produced; 2) making inventory and documentation and providing a detailed description of context analysis on each object; and 3) creating a product design that can be used as a reference for further action through implementation as a representation of further research programs. The outputs that have been achieved are the mapping of potential, product designs or design motifs, and painting motifs. The situation analysis results on Batik in Sondakan are: a). special target market segments that have high artistic taste, with middle to upper economy class, thus the motifs / patterns / colors should be made elegant, special, and exclusive, b). batik lukis techniques tend to be more free, not tied to traditional batik patterns, thus facilitating regeneration of batik artisans, c). Market strategy is not only through selling off, but also rental techniques for office interiors, hotels, and houses, d). Interior aesthetic elements are not limited to residential spaces, but are also developed in office interiors, agencies, hotels, homestays, even aircraft interiors, buses and trains, e). training for batik crafters is required to achieve high skills and creativity in creating up to date products, f) the design of batik lukis emphasizes on functional value, especially as interior complements, g) Promotion through various media is needed.

Keywords
Batik lukis, aesthetic elements, interior, batik Sondakan

Topic
Design

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

Corresponding Author
Eddy Soeryanto Soegoto

Institutions
(a)Department Ilmu Sosial dan Ilmu Politik
(b)Informatics Engineering Department
(c)Department Sistem Informasi

Abstract
This study aims to determine the impact of the application of the e-ticketing system on bus transportation for the peoples of Bandung. To support research, the method used is a qualitative research method aimed for the peoples of Bandung and to one of the bus transportation service providers in the city of Bandung. The results show that there are some positive impact on the implementation of e-ticketing system, one of which is to increase public interest in the public transport in order to reduce the congestion that often occurs during. This is because the implementation of e-ticketing systems on public transportation provides convenience and comfort in ticket booking services, both for the peoples and for the providers of transportation services. Of course the convenience and comfort can encourage peoples to use public transportation in carrying out their daily activities.

Keywords
E-commerce, online business, titling services

Topic
Entrepreneurship

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

Corresponding Author
Dedi Sulistoyo Soegoto

Institutions
Department Ilmu Sosial dan Ilmu Politik, Department Teknik dan Ilmu Komputer, Departement Sastra Inggris

Abstract
The purpose of this study is to attract the interest of domestic and foreign tourism consumers in the ease, speed and accuracy of hotel bookings, airplane tickets and more. The method in this writing uses descriptive methods. The results of this study indicate that the influence of a dynamic website appearance makes it easier for tourists to book hotel and flight tickets. To simplify hotel and flight ticket bookings. The conclusions obtained from this study that dynamic website display can facilitate tourists in booking hotel and flight tickets and implemented through an attractive website display includes the design of the interface design produced.

Keywords
tourism, consumers, website

Topic
Entrepreneurship

Link: https://ifory.id/abstract/MZKN7UXCBHta

Corresponding Author
Eddy Soeryanto Soegoto

Institutions
Department Ilmu Sosial dan Ilmu Politik, Department Ilmu Sosial dan Ilmu Politik, Department Sastra Inggris

Abstract
The purpose of Online-Learning research is as a form of learning innovation and new business models in the world of education to find out the effectiveness of learning through E-learning methods and social and economic impacts. Along with the times, the internet and the development of the world of technology are developing so rapidly. And, all aspects of life as a whole are affected. And the development of technology, especially the internet, currently affects various aspects of the field and education, one of them. The form of innovation in the use of technology in the field of education is through distance learning systems. In this writing the method that I use is a comparative causal research method or ex post facto research through a Case Study to collect data to be reviewed. The results of this study as a benchmark for any impact that will be generated by the E-Learning learning system both in social and economic world-wide including Indonesia. And with the nuances of learning through the use of technology, it will provide experience and new dynamics in the teaching and learning process for each individual.

Keywords
Business Models, E-Learning, Technology

Topic
Entrepreneurship

Link: https://ifory.id/abstract/MxeEw8T3bfKQ

Corresponding Author
Dedi Sulistiyo Soegoto

Institutions
Department Magister Management (a), Department Management Informatika (b), Department Sistem Informasi (c)

Abstract
The purpose of this study is to analyze what internet banking is and how internet banking influences the development of e-commerce. The method used is the Case Study research method which aims to explain and understand what is being examined and examine how this can occur. The results of this study found that internet banking can increase sales and expansion of research. This research is used to show how internet banking can have a real influence on ecommerce development.

Keywords
E-Commerce, Internet Banking

Topic
Entrepreneurship

Link: https://ifory.id/abstract/nfCLcG97NaQX

Corresponding Author
Ahmad Adriansyah

Institutions
STIE Indonesia Banking School

Abstract
Bitcoin is the first and one of the most popular cryptocurrencies in the world. The value of Bitcoin can go up thousands of percent, but it can also go down hundreds of percent. This condition makes Bitcoin often considered as an instrument for investment. As a new investment (discovered in 2009) and prices began to surge in 2017, it is interesting to study investment behavior in the bitcoin instrument. This research uses the theory of planned behavior by Ajzen, processed with SEM and Smart PLS 3.0 applications. The number of respondents is 100 people. The result shows that attitude is the only variable that influences the intention to buy bitcoin. And the intention to buy bitcoin affects the investment behavior of Bitcoin. Subjective norms and perceived behavioral control do not affect the intention to buy bitcoin. perceived behavioral control also does not affect bitcoin investment behavior directly.

Keywords
Bitcoin, Theory of Planned Behavior, Investment Behavior

Topic
Manajemen Keuangan

Link: https://ifory.id/abstract/LpK4m82MUHrt

Corresponding Author
Pribanus Wantara

Institutions
Universitas Trunojoyo Madura

Abstract
Entrepreneurship plays a dominant role in moving the wheels of the economy both locally, regionally and globally. Dynamic entrepreneurs who are committed to success are proven to influence economic growth and prosperity. Entrepreneurs who have the spirit of leadership and entrepreneurial spirit will lead the economic revolution towards a better standard of living. In the midst of the globalization of the world community, the values of entrepreneurship, such as creativity, innovation, moderate risk, tenacious and responsible, optimistic, should always be instilled in the younger generation, especially through Entrepreneurship Education, so that the spirit of the younger generation can be more competitive in the face of Competition in the globalization era. The role of Education of entrepreneurship is needed to prepare the spirit of the young generation to become active players in supporting the Indonesian economy towards positive change.

Keywords
Entrepreneurship, Value, Entrepreneurship Education

Topic
Kewirausahaan Dan Inovasi Bisnis

Link: https://ifory.id/abstract/Ed6vP9LyFzYw

Corresponding Author
ILHAM ST

Institutions
UNIVERSITAS LAKIDENDE UNAAHA JL. SULTAN HASANUDDIN 234

Abstract
Abstrak: Penelitian ini bertujuan untuk menguji Pengaruh Sumber Daya Manusia, Komitmen dan Motivasi terhadap Kinerja Dosen serta menguji pengaruh Reward terhadap hubungan antara SDM, Komitmen dan Motivasi dengan Kinerja Dosen. Sampel penelitian ini adalah Dosen (DTY dan DPK) yang melakukan pembelajaran, penelitian dan pengabdian pada masyarakat (Tri Dharma Perguruan Tinggi) di Universitas Lakidende Unaaha berjumlah sebanyak 50 Dosen. Data dikumpulkan dengan menggunakan kuesioner, dari 50 kuesioner yang disebarkan, dikembalikan sebanyak 50 kuesioner dan yang dapat dievaluasi sebanyak 50 kuesioner dengan analisis jalur (path diagram) sofware SmartPLS 2.0 M3. Hasil Penelitian ini menyimpulkan Motivasi berpengaruh terhadap Kinerja Dosen, dan Reward bila ditempatkan sebagai variabel independen juga berpengaruh signifikan terhadap Kinerja Dosen, dan SDM, komitmen mempengaruhi signifikan terhadap kinerja dosen. secara simultan sumber daya manusia, komitmen, motivasi dan reward berpengaruh secara signifikan terhadap kinerja dosen serta reward mempengaruhi hubungan antara SDM, Komitmen dan Motivasi terhadap Kinerja Dosen dan reward merupakan variabel moderating.

Keywords
Sumber Daya Manusia, Komitmen, Motivasi, Reward, Kinerja Dosen

Topic
Manajemen Sumber Daya Manusia

Link: https://ifory.id/abstract/yrb673JVHDZk

Corresponding Author
Anny Nurbasari

Institutions
Maranatha Cristian University, Bandung, Indonesia
Indonesia Polytechnic of Post, Bandung, Indonesia

Abstract
Internet advertising merupakan salah satu pengembangan media komunikasi pemasaran online interaktif yang dapat menjadi salah satu pilihan perusahaan untuk mengkomunikasikan manfaat produk dan untuk meyakinkan target pasar dalam keputusan pembelian. Penggunaan humor telah menjadi hal yang lumrah dalam periklanan, namun pengetahuan tentang dampak humor tema ekspresi budaya tradisional masih sangat langka, jadi bukan berarti dengan menggunakan humor secara otomatis akan berdampak pada keputusan pembelian konsumen. Penelitian ini bertujuan untuk menguji dampak tema iklan humor ekspresi budaya tradisional,kreatifitas dan daya tarik emosional emosional terhadap keputusan pembelian. Jenis penelitian menggunakan disain konklusif dengan single cross- sectional. Metode pengambilan sampel menggunakan non-probabilitas, dengan teknik judgmental sampling, kuesioner disebarkan kepada 190 responden You Tube di Jawa Barat. Pengolahan data dan pengujian hipotesis menggunakan analisis SEM.Temuan hasil penelitian menggambarkan pola yang jelas dari dimensi tema humor ekspresi budaya, kreatifitas dan daya tarik emosional yang dibangun dan verifikasi empiris peran mediasi daya tarik emosional hubungan secara keseluruhan dalam pembentukan atribut keputusan pembelian. The Impact of Traditional Culture Humor Themes, Creativity, Emotional Attractiveness to Purchasing Decisions Abstract Internet advertising is one of the development of interactive online marketing communication media that can be one of the choices of companies to communicate the benefits of the product and to convince the target market in purchasing decisions. The use of humor has become commonplace in advertising, but knowledge of the impact of humor on traditional cultural expression themes is still very scarce, so it does not mean that using humor automatically will have an impact on consumer purchasing decisions. This study aims to examine the impact of humor advertising themes on traditional cultural expressions, creativity and emotional emotional appeal on purchasing decisions. This type of research uses a conclusive design with a single cross-sectional design. The sampling method uses non-probability, with judgmental sampling technique, the questionnaire was distributed to 190 You Tube respondents in West Java. Data processing and hypothesis testing using SEM analysis. The findings of the study illustrate clear patterns of the humor theme of cultural expression, creativity and emotional attraction that are built and empirical verification of the mediating role of the emotional appeal of the overall relationship in the formation of purchasing decision attributes.

Keywords
Tema Humor ekspresi budaya tradisional , kreatifitas, daya tarik emosional, Keputusan Pembelian.

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/fqNXtGYgV6Fw

Corresponding Author
Anugrah Ricky Wijaya

Institutions
Universitas Negeri malang

Abstract
The accumulation of heavy metal in marine waters is a very serious and dangerous environmental problem. Heavy metals can accumulate in sludges and corals. Understanding trace metal displacement, concentration and distribution is needed as a first step to prevent the spread of heavy metals pollution. We determined the trace metals in sludges ( Zn, Cd, Pb, Ni, Co,Cu and Fe) using the method Bureau Community of Reference (BCR) microwave as well as other chemical analyzes such as anion analysis and total organic carbon. The samples were used Acropora corals and sludges taken from Prigi bay waters. This research aims to (1) investigation of the level of metal pollution in prigi bay waters, (2) Look for the relationship of metal concentrations in sludges, corals and seawater in order to obtain more accurate pollution value data. The data for heavy metals concentration, zinc should not exceed than 50µg l-1 in marine waters. Cadmium is a relatively rare element with concentrations ranging from 2 x 10 4 to 2.9µg l-1. Lead is highly toxic and originates from anthropogenic activities. Nickel is one of the largest trace metal constituents of crude oil and cobalt is an essential metal for living organisms in low concentrations but may be toxic in high concentrations. Copper concentrations in marine waters should not increase than 5 µg l-1. For Higher concentrations of Fe in sludges and seawater may be revealed a pollution problem in a certain area. The precision value (% RSD) of using the BCR microwave method for trace metals in sludges has a range (3.99-9.6%) for all metals.

Keywords
Sludge, Coral, Heavy Metals, Risk Assessment, Prigi Bay

Topic
Bioconservation

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

Corresponding Author
nur hidayah

Institutions
1Physics Study Program, Jambi University, Jambi –Ma. Bulian Street KM 15, Mendalo Darat Jambi 36361, Indonesia
2D3 Study Program, Sains Laboratory, Bengkulu University, WR. Supratman Kandang Limun Street, Muara Bangka Hulu Bengkulu 38371, Indonesia
3Chemistry Study Program, Jambi University, Jambi –Ma. Bulian Street KM 15, Mendalo Darat Jambi 36361, Indonesia

Abstract
Temperature control is very prominent to be done in producing biochar, because the quality of biochar depends on combustion temperature and the amount of oxygen existing when the combustion process is happening. In this research, the designing of furnace for biochar production by using vacuum pump and temperature manual control had been done. The fuel used was LPG gas. The furnace was designed by having two parts which are cylinder tube for biochar production and tube feet as the holder of the kiln. The calibration of the furnace for biochar production was done to find out the temperature and the pressure that can be generated and its effect toward produced biochar. The calibration was done by using vacuum pump to vacuum the combustion chamber and temperature manual control as temperature indicator. There were two steps for this furnace calibration, first, the leakage test and second, combustion test of biochar production. The leakage test was done by using bubble test method. The result showed that there were still some leakages happened, but they were fixed with glue on the leak parts. As the final result of the leakage calibration, the vacuum condition obtained was -25 cmHg. And as the result of biochar combustion as long as one and two hour, the temperature reached 2800C and 2500C.

Keywords
Biochar; furnace; temperature control manual;vacuum pump

Topic
Physics

Link: https://ifory.id/abstract/cZ8MNmqu7PGW

Corresponding Author
helga dwi fahyuan

Institutions
1Physics Study Program, Jambi University, Jambi – Ma. Bulian Street, KM 15, Mendalo Darat Jambi 36361, Indonesia
2D3 Study Program, Sains Laboratory, Bengkulu University, WR. Supratman Kandang Limun Street, Muara Bangka Hulu Bengkulu 38371, Indonesia
3Energy and Nanomaterial Laboratory, Jambi University, Tri Brata Street, KM 11 Pondok Meja Mestong, Muaro Jambi, Indonesia
4Chemistry Study Program, Jambi University, Jambi – Ma. Bulian Street, KM 15, Mendalo Darat Jambi 36361, Indonesia

Abstract
Abstract. The biochar/TiO2 thin layer has been made by sol-gel method and the coating technique by Doctor Blade method. The variation of biochar on TiO2 were 0%, 1%, 2%, 3% and 4%. The characterization was done by XRD (X-Ray Diffractometer) to see the crystal structure of samples. Also, the characterization by UV-Vis spectrophotometer to obtain the value of energy gap. Based on XRD data, it was obtained that the crystal structure of all samples is anatase TiO2. The crystalline size of all samples has no significant different by the increasing of percentage doping. The smallest crystal size was at the addition of 3% and 4% biochar which was 118.22 nm. The results of UV-Vis characterization showed the lowest value of energy gap was at sample doping 1% biochar which was 3.25 eV. Bandgap energy value for doping sample above 1% showed an increase of bandgap energy of Biochar-TiO2.

Keywords
biochar/TiO2; bandgap energy; TiO2; Doping

Topic
Physics

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

Corresponding Author
suci siti lathifah

Institutions
Program Studi Pendidikan Biologi
Fakultas Keguruan Dan Ilmu Pendidikan Universitas Pakuan

Abstract
Quasi experiment method with pre- experimental, one group pretest-posttest design is used in this research. The research was conducted from March to June 2019 and aimed at finding out students- cognitive achievement on vertebrate learning material before and after using mind mapping. Population in this research is students of tenth grade MIPA in SMA Negeri 1 Cigombong academic year 2018/2019, with 32 students as experimental group. Data collection techniques used is multiple choice questions to find out students- achievement and questionnaire to measure response towards teaching learning process. The N-gain score for pretest and postest shows medium criteria of 56%. The average result of Pretest before using mind mapping learning material is 47 with cognitive achievement category considers as low. The average result of posttest after using mind mapping learning material is 77 with cognitive achievement category listed as good. On the other hands, teachers- response towards mind mapping learning material is positive, it can be seen from the result of the questionnaire score 94,3%. While students- response is 78% like the teaching learning process using picture media and 63% students like the use of group work, 66% students felt bored with identical learning source. It can be concluded that mind mapping learning material is effective in improving students- cognitive achievement.

Keywords
Learning Material, Cognitive Learning Achievement, Mind Mapping, Vertebrate

Topic
Biology Education

Link: https://ifory.id/abstract/k2aT3cMyQ8h7

Corresponding Author
Dewi Rahimah

Institutions
(1) School of Education, The University of Queensland,
Building 24 (Social Science Building), St Lucia Campus, Brisbane, Queensland 4072 Australia
(2) Program Studi Pendidikan Matematika, Jurusan Pendidikan Matematika dan Ilmu Pengetahuan Alam, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Bengkulu, Jl. W.R. Supratman, Kandang Limun, Bengkulu 38371A Indonesia

Abstract
This paper contributes to a larger endeavour of understanding how mathematics textbooks are used in classrooms and what shapes the specific forms of their use. Three types of mathematics textbook analysis have been previously identified, namely, horizontal, vertical, and contextual analysis. Based on literature review, we discuss how these three types of analysis can be usefully combined, and explain why contextual analysis, where data on textbook use is collected in classrooms, provides the most revealing insights. We argue that because of its relevance for textbook design as well as for teacher professional development, researchers should consider including the contextual analysis when analysing textbooks.

Keywords
Horizontal analysis; Vertical analysis; Contextual analysis; Mathematics textbook analysis

Topic
Mathematics Education

Link: https://ifory.id/abstract/zjNJyKT2rQxp

Corresponding Author
Lucy Asri Purwasi

Institutions
a,b) Program Study of Matematics Education, STKIP PGRI Lubuklinggau
Jalan Mayor Toha Kel. Air Kuti Kec. Lubuklinggau Timur I Kota Lubuklinggau
asripurwasi[at]gmail.com

Abstract
The purpose of this study was to determine the effect of metaphorical thinking learning approaches on mathematical reasoning and problem solving abilities. The research method used is a quasi-experimental method. The population in this study were students of the third semester mathematics education, STKIP PGRI Lubuklinggau. The sample selection is done with saturated samples. Based on the analysis of the two-party t test data obtained the results of the study, as follows 1) in the final ability of mathematical reasoning the value of t arithmetic = 2.351 and t table = 2.06 then the value of t count is more than t table so that H0 is rejected and Ha is accepted, it can be concluded significant influence of the metaphorical thinking learning approach on students mathematical reasoning abilities and 2) on the final ability of mathematical problem solving t value = 2.311 and t table = 2.06 then the t value is more than t table so H0 is rejected and Ha is accepted, it can be concluded there is a significant effect of the metaphorical thinking learning approach on students mathematical reasoning abilities.

Keywords
Mathematical reasoning; problem solving; metaphorical thinking approach

Topic
Mathematics Education

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

Corresponding Author
AS Elly

Institutions
a) STKIP PGRI Lubuklinggau
Jl. Mayor Toha Kel. Air Kuti Telp.(0711) 451432 Lubuklinggau
*asellystkip05[at]gmail.com
b) STKIP PGRI Lubuklinggau
Jl. Mayor Toha Kel. Air Kuti Telp.(0711) 451432 Lubuklinggau

Abstract
This study aims to describe the ability of junior high school students to solve PISA mathematical problems using the Lubuklinggau context in terms of the PISA level. The subjects in this study were students of class IX.5 Middle School 5 Lubuklinggau. The method in this research is descriptive qualitative method. The instruments and data collection techniques used were test sheets and questionnaires as well as interview guidelines. Data analysis of data through 3 channels, namely data reduction, data presentation, and drawing conclusions. The results obtained indicate that the level I PISA Problem in the category is very good with an average value of 91.07, level II in the category is very good with an average value of 91.96, level III in the good category with an average value of 72.45 , level IV in the good category with an average value of 61.61, level V in the sufficient category with an average value of 58.16, and level VI in the Less category with an average value of 38.10. So it can be concluded that the ability of class IX students of SMP Negeri 5 Lubuklinggau in solving mathematical problems using the PISA model Lubuklinggau context in terms of PISA level is included in both categories with an overall average value of 68.89.

Keywords
Student Ability; PISA; Lubuklinggau Context

Topic
Mathematics Education

Link: https://ifory.id/abstract/u4URYBemGP28

Corresponding Author
novianti mandasari

Institutions
STKIP PGRI Lubuklinggau

Abstract
The ability of reasoning is very important to note for being able to train students to think activity able to complete math problems.This ability also became a benchmark in determining the student achievement in mathematics, one of them is in the international TIMSS and PISA. However, the ability of competing of Indonesian students is still very low compared to other countries. This can be due to the lack of giving questions that train reasoning abilities by the teacher. Therefore, there is need for improvement in the process of learning mathematics. On the process of learning, students are given the opportunity to explore and to dig up all the potential. The teacher can give problems that are able to train and develop the ability of mathematical reasoning. Problem-based learning is is a learning-centeredissues. Problems can be relate to the real-life of students and can train the ability of skills and complete mathematical problems

Keywords
Problem Based Learning, Reasoning Ability, Mathematics

Topic
Mathematics Education

Link: https://ifory.id/abstract/YhPpTc8jDwJV

Corresponding Author
Wawan Kurniawan

Institutions
(a) Department Physics Education, Universitas Jambi

Abstract
The colour quality of batik jambi fabric using natural and chemical dyes needs to be tested for its resistance to washing (friction) and heating (thermal) treatment both for drying and ironing. Fabric fading is affected by decreasing the level of brightness and reducing blackish colour and increasing white in an element of colour. The purpose of this study was to measure the level of fading of the colour of the batik jambi cloth using the colour histogram method. The process of this research uses several sizes of jambi batik cloth obtained by three batik production / craftsmen in the Jambi Kota Seberang. Process Treatment of each sample through washing, drying and ironing with temperature variations of 50, 75 and 100 Celsius. Then take a digital photo image and analyzed the level of RGB colour intensity (Red, Green, Blue). If there is a level of change in the increase or decrease in the intensity of the RGB colour, then there is an indication of dis-colouration on the fabric. The results of the testing of the colour of the batik jambi cloth using a colour histogram showed a good degree of colour brightness resistance after a number of treatments, so testing the level of fading of the colour of the batik jambi cloth proved the quality of the natural dyeing process was very good.

Keywords
Colour histogram method; Batik jambi; Digital image processing

Topic
Physics

Link: https://ifory.id/abstract/P8EedLAfu7M2

Corresponding Author
Maria Luthfiana

Institutions
STKIP PGRI LUBUKLINGGAU
maria_luthfiana[at]yahoo.co.id

Abstract
This research aims to develop high quality PMR based on Student Worksheet (LKS) to facilitate mathematical reasoning ability of grade XI students of SMA Negeri 1 Lubuklinggau. This research used research and development method (Research and development) and the stage of Analysis Design, Development, Implementation, and Evaluation. In the development stage, there are two kinds of processes, namely the development of LKS and LKS validation, then evaluated LKS by the experts of linguists, and media experts. Validity of LKS was developed categorized "Valid" with an average score of 3.09 was determined based on the LKS assessment result by 3 experts (material experts, linguists, and media experts) maximum score was 4.00. Data analysis used LKS Practicality analysis developed "Praktis" with an average score of 3.38 is determined based on the result of student response to LKS. Descriptive and statistical analysis. The effectiveness can be seen from the results of students achievement tests. Based on the results of the Test Achievement shows that the percentage mastery learning class XI SMA Negeri 1 Lubuklinggau was 87%. Thus, learning mastery reaches good criteria, In shortly, LKS that used in teaching and learning was effective.

Keywords
Student Worksheet, PMR, mathematical reasoning ability

Topic
Mathematics Education

Link: https://ifory.id/abstract/ZX4gqY2wQdUj

Corresponding Author
Atra Romeida

Institutions
1) Fakultas Pertanian Universitas Bengkulu. Jalan W.R. Supratman Bengkulu
E mail : atrapbt[at]yahoo.co.id, aromeida[at]unib.ac.id, HP. 081318133444

Abstract
Domestification of Indonesian natural orchids is one way to do ex situ conservation. In its natural habitat, the Epidendrum paniculatum is an epiphytic orchid that lives attached to trees. The purpose of this study was to obtain the best kind of foliar fertilizer for vegetative growth Epidendrum paniculatum orchids. This experiment used Completely Randomized Design (CRD). The treatment was five types of leaf fertilizer compound: J1 = Gandasil D, J2 = Growmore, J3 = Gaviota, J4 = Multitonic, J5 = Hyponex. Each treatment was repeated ten times. The concentration of fertilizer given was 2 gL-1. The volume each time spraying was 50 ml. The results showed that multitonic fertilizers were able to produce the best vegetative growth of Epidendrum paniculatum orchid, measured by leaf number (7.33 sheets), leaf length (47.77 cm), leaf width (6.65 cm), plant height (51.95 cm), bulb height (29.83 cm ) bulb diameter (4.28 cm), and number of new shoots (3.67 shoots per clump).

Keywords
orchid, Epidendrum paniculatum, leaf fertilizer, epiphyte, multitonic

Topic
Biology

Link: https://ifory.id/abstract/EWuU6jxXwpme

Corresponding Author
Agustin Zarkani

Institutions
1) Department of Plant Protection, Faculty of Agriculture, University of Bengkulu, Bengkulu, Indonesia.
2) Biotechnology Research Centre, Çukurova University, Adana, Turkey.

*E-mail: agustinzarkani[at]unib.ac.id

Abstract
Eleven species of Pseudococcidae scales are known to live on oil palm (Elaeis guineensis Jacq). Here we report an outbreak of a suspected new species which is morphologically closed to Dysmicoccus finitimus Williams 1994 (Hemiptera: Pseudococcidae) on oil palm in Bengkulu Province, Indonesia. Some features are known different in the number of cerrarii, type of macro lobes, and longest anal-lobe seta. In addition, the natural enemies associated with the species were also listed.

Keywords
Biodiversity, oil palm, palmae, scale insect, taxonomy

Topic
Biology

Link: https://ifory.id/abstract/6G8nzM7YyrNU

Corresponding Author
Wiwiek Setiowulan Sp.A., M.Kes.

Institutions
1Department of Pediatrics, Faculty of Medicine, Universitas Islam Bandung, Indonesia
2Department of Pediatrics, Rumah Sakit Muhammadiyah , Bandung, Indonesia
3Department of Pediatrics, Rumah Sakit Umum Daerah Al Ihsan, Bandung, Indonesia
4 Intern Doctor, Department of Pediatrics, Rumah Sakit Angkatan Udara dr. M. Salamun, Bandung, Indonesia

Coresponding Email: aisafatiha[at]gmail.com

Abstract
Pediatric drug reaction with eosinophilia and systemic symptoms (DRESS) is a life-threatening uncommon disease that can be difficult to diagnose. A prolonged duration of fever before the appearance of other cardinal symptoms may cause an initial miss diagnosis. We present a case of a 10 year old girl with ten days of high fever first treated as typhoid fever. She was on the fifth week of antituberculosis treatment (ATT). A diagnosis of DRESS was made after the appearance of pruritic morbiliform rash and severe liver injury. The fever decreased after we stopped the ATT and gave systemic corticosteroid, followed by resolution of other symptoms. The diagnosis of TB disease in this patient was made in primary health care facility using pediatric TB scoring system. Despite the total score of 6 (positive tuberculin test and TB exposure), she has normal chest X-ray and no symptoms of TB. Therefore, the patient has latent tuberculosis infection (LTBI) but overdiagnosed as TB disease. Due to the negative HIV status of the patient, TB prophylaxis is not needed. Therefore, reintroduction of ATT was contraindicated, which led to lack identification of specific drug causing DRESS in this case.

Keywords
Antituberculosis treatment, drug reaction with eosinophilia and systemic symptoms, latent tuberculosis infection.

Topic
Infectious and Non Infectious Diseases

Link: https://ifory.id/abstract/whf7zvaL3RUt

Corresponding Author
Daeng Achmad Suaidi

Institutions
1) Physics Department, Universitas Negeri Malang. Jl. Semarang No. 5 Sumbersari, Kec. Lowokwaru, Malang 65145, Indonesia.
2) Geophysics Laboratory. Physics Department, Universitas Negeri Malang. Jl. Semarang No. 5 Sumbersari, Kec. Lowokwaru, Malang 65145, Indonesia.

*Corresponding author: daeng.achmad.fmipa[at]um.ac.id

Abstract
In this study identification of geothermal manifestations was based on vegetation analysis of remote sensing data. This study aims to identify geothermal manifestations based on the density of vegetation index and land surface temperature in the Cangar geothermal area, East Java through the results of satellite data processing in the form of Landsat 8 image data using ArcGIS ArcMap 10.4 software applied to analyze the vegetation index with the NDVI method and know the distribution LST in the research area. Based on the results of processing remote sensing data from Landsat 8 images. For the results of the vegetation index density (NDVI) processed from the image of band 4 and band 5, it shows that in the Cangar geothermal area it is dominated by mixed land with the classification results 0.2 < NDVI < 0.65, this explains that covered by mixed land indicates that the area is thermally active compared to areas covered by vegetation. While the results of the distribution of land surface temperature (LST) processed from thermal band 10 channels show a range of yield values 6.63 oC - 45.33 oC, with very striking anomalies in geothermal manifestations in the form of Cangar hot water and at several points in the South and East in the study area with estimated LST of 26 oC - 45,33 oC.

Keywords
geothermal, remote sensing, NDVI, LST, cangar

Topic
Computation and Other Related Field

Link: https://ifory.id/abstract/axhB8DHNkUgF

Corresponding Author
Daeng Achmad Suaidi

Institutions
1) Physics Department, Universitas Negeri Malang. Jl. Semarang No. 5 Sumbersari, Kec. Lowokwaru, Malang 65145, Indonesia.
2) Geophysics Laboratory. Physics Department, Universitas Negeri Malang. Jl. Semarang No. 5 Sumbersari, Kec. Lowokwaru, Malang 65145, Indonesia.

*Corresponding author: daeng.achmad.fmipa[at]um.ac.id

Abstract
Poncokusumo subdistrict is one of the areas in Malang regency which is a hilly area because it is located in the west of Mount Semeru Mountain consisting mostly of productive land. The area of Poncokusumo was taken for this research because of frequent landslides. Geographic Information Systems (GIS) technology is one of the ways that can help to mapping potential areas of landslides. The parameters used in mapping the landslide area of this study are rainfall, geological conditions, soil type, slope, and land cover. Each of these parameters is performed an overlay analysis with a weighted (scoring) technique using the ArcGis 10.3 software. The scoring analysis technique is used to provide value to each of the parameters for each sub variable which is then a cumulative calculation. This cumulative calculation will get a final score to determine a landslide-prone class. Level of landslide spread is divided into 3 classes: low landslide-prone area is 1,249.986 ha (5.749%), the medium landslide-prone area is 19771.74 (90.94%) and the high landslide-prone area is 719.7894 ha (3.311%). Ngadas and Jambesari village is an area that has the highest level of insecurity of landslides with a total area of 263.1 ha and 94.37 ha.

Keywords
Overlay, Poncokusumo, GIS, Landslide

Topic
Computation and Other Related Field

Link: https://ifory.id/abstract/Q2zJteCrGD9a