Indonesia Conference Directory

Corresponding Author
M. Fitrah Alfian R. Sakti

Institutions
(a) Theoretical Physics Division, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132, Indonesia
(b) Indonesia Center for Theoretical and Mathematical Physics (ICTMP), Jl. Ganesha 10 Bandung 40132, Indonesia

Abstract
We find a charged spherically symmetric black hole solution with the existence of cloud of strings and quintessential matter. Then we apply the Demia(acute{n})ski-Janis-Newman algorithm to generate the rotating and twisting counterpart. The thermodynamic properties of this black hole solution are also investigated.

Keywords
black holes, Demianski-Janis-Newman algorithm, thermodynamics

Topic
Theoretical High Energy Physics

Link: https://ifory.id/abstract/ZwLbqe7ApNWC

Corresponding Author
Alhada Farduwin

Institutions
1. Master Program of Geophysical Engineering, Institut Teknologi Bandung
2. Global Geophysics Group, Institut Teknologi Bandung

Abstract
Ridge regression particle swarm optimization (RR-PSO) is an optimization technique based on the simulation of social behavior of some animal swarm that has been sucessfully used in many different engineering fields. In this study, RR-PSO was used to invert Rayleigh wave phase velocity curves that extracted from ambient seismic noise records to obtain the shear velocity (Vs) profile. The optimization algorithm is relatively faster, stable and the important aspect is that can provide uncertainty information of the inversion results. In order to determine the capabilities of the RR-PSO algorithm, the synthetic simulation was carried out using both noise-free and noise-contaminated data. The validity test includes the calculation of similarity index and estimation of the model uncertainty using their standard deviation. Based on the resulted model, the convergence of RR-PSO algorithm is relatively faster, stable and adaptable to some level of noise and can provide good model estimation of the subsurface. The application of RR-PSO to the real dispersion curve data is carried out in order to determine the seismic crustal structure beneath Nusa Tenggara islands.

Keywords
RR-PSO, shear velocity, Rayleigh waves, Nusa Tenggara

Topic
Earth and Planetary Sciences

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

Corresponding Author
Rosliani Widia Pamungkas Isburhan

Institutions
a) Master Program of Geophysical Engineering, Institut Teknologi Bandung
b) Global Geophysics Group, Institut Teknologi Bandung
c) Research School of Earth Sciences, The Australian National University

Abstract
Palu City is a city on the island of Sulawesi with very complex geology. There are many active faults on Sulawesi Island, one of which is the Palu-Koro Fault system which extends NNW-SSE direction. Thick sediment under Palu City can cause amplification of the soil during an earthquake so that the damage will be quite severe. In order to characterize the subsurface structure of the City of Palu, microtremor data processing was carried out from 22 stations using the Horizontal-to-Vertical Spectral Ratio (HVSR) method. HVSR is a method for obtaining subsurface information from a single station measurement that can be used to examine seismic risk. HVSR is measured by comparing the Fourier spectrum of horizontal components with vertical components. The amplitude of this ratio, H/V curve, is varying with frequency. The H/V curve containing amplification information and the related dominant frequency which can then be inversted to obtain subsurface information, such as S-wave velocity and layer thickness. In this study, the inversion was carried out by using the PSO (Particle Swarm Optimization) algorithm. The PSO algorithm is stochastic optimization technique inspired by social behavior of bird flocking when searching a promising area for food. In order to evaluate the consistence of obtained results we also compare with the model from OpenHVSR program. The obtained shear velocity model shows that low velocity zone (less than 700 m/s) related to the sediment layer is around 200 m with a relatively small misfit at around 1.3.

Keywords
HVSR; S-wave Inversion; Monte-Carlo Algorithm; PSO

Topic
Earth and Planetary Sciences

Link: https://ifory.id/abstract/cm4g8wHQCaL9

Corresponding Author
windi wardhani

Institutions
ab Sultan Agung Islamic University, Semarang and Indonesia
bilqin.09[at]gmail.com

Abstract
This article proposes the concept of developing the competitive advantage of Tourism Competitive Advantage which emphasizes the development of tourism in knowledge quality and destination innovativeness by increasing entrepreneurship learning. We define knowledge quality as used knowledge whose quality in adaptability, quality of development and of which is easy to apply. Destination Innovativeness is defined as the willingness of tourist destinations to engage in and support new ideas, novelty, experiments, and creative processes which can create new products, services, or new technological processes in existing playing fields. Tourism Competitive advantage covers the ability of objects and the attractiveness of tourist destinations in maintaining the sustainability of local resources, creating and integrating value-added products, raising high living standards for surrounding communities and attracting and satisfying potential tourists. The proposed framework of tourism competitive advantage in this research coverse environmental sustainability, social wealth, satisfaction, and attractiveness. The analysis shows that entrepreneurial learning may affect tourism competitive advantage by the way of knowledge quality and destination innovativeness on non-government tourism objects. This paper initiates a new research agenda of tourism competitive advantage with implication for future research, practice and public policy.

Keywords
Destination innovation, tourism competitive advantage, knowledge quality, entrepreneur learning

Topic
Hospitality and Tourism

Link: https://ifory.id/abstract/mjf9qZhWXYJU

Corresponding Author
Puguh Budi Prakoso

Institutions
Faculty of Engineering, Universitas Lambung Mangkurat, Indonesia
National Center for Sustainable Transportation Technology, Indonesia
e-mail: ifradam[at]ulm.ac.id, puguh.prakoso[at]ulm.ac.id, utami.s.lestari[at]ulm.ac.id

Abstract
In order to improve the public transportation service in the city of Martapura, the expectations from the side of the users are required to know. These factors are essential because a good public transportation service according to the passenger expectations will encourage the users to utilize more public transportation. Therefore, this study has goals to understand the factors of choosing public transportation (minibus) from the user expectations, to investigate the lack of the service and performance of the existing public transportation and to find a solution of improving public transportation service in the city of Martapura. Partial Least Square (PLS) method was employed to perform data analysis of a questionnaire survey from the passengers. The study demonstrates that the most important factors expected by the passengers are schedule and waiting time, fare system, safety, environmental impact, mode-s integration and connection, driver attitude, vehicle performance and capacity, access and performance of the bus stops, passenger comfort and information.

Keywords
passenger expectation, public transport, PLS

Topic
EV Socio-Economical Impact

Link: https://ifory.id/abstract/4kBfwCtTyGKd

Corresponding Author
Ginbert Permejo Cuaton

Institutions
Leyte Normal University, Tacloban City, Philippines
cuatonginbert[at]gmail.com

Abstract
Almost half a decade after the devastation of super typhoon Haiyan in 2013, there is still limited to no published empirical studies that documented and analyzed the role of hospitality and tourism employment on post-disaster recovery of indigenous peoples. This paper provides latest empirical data on hospitality and tourism employment of indigenous people in a post-disaster (post-Haiyan) context in rural-poor indigenous cultural communities in the Philippines. This study identified the various livelihood and employment challenges of the Mamanwa Indigenous peoples following the Haiyan disaster; their employment in the hospitality and tourism industry and its role in rebuilding their families and community; and practice-based recommendations to improve their participation in the hospitality and tourism industry. This study was conducted from November 2018 and April 2019 with five (5) Mamanwa Indigenous peoples who are hospitality and tourism workers in the Sohoton Cave and Natural Bridge Ecopark in the disaster-prone municipality of Basey, Philippines. The overall method utilized in gathering the data for this researcher is ethnography. The researcher deems this method as the suitable method in gathering data for this research because it is centered on the role of hospitality and tourism employment vis-a-vis post-disaster recovery of selected Mamanwa indigenous peoples. The livelihood of the Mamanwas circulate around handicraft-making, livestock raising, and farming which includes planting rice, root crops (e.g. sweet potatoes, cassava), and other plants used in making uway, banig, kaing, duyan, and baskets. They also sell handicrafts and raise animals such as pigs, ducks, and chickens. Since Mamanwa-s livelihoods are centered and dependent, they have limited job opportunities in their relocation site. Disasters exacerbate the vulnerability of indigenous peoples and the informants admitted that their lives in their current settlement is more difficult compared to their condition when they were still in the hinterlands but because of their intention to give their children formal education as well as relative access to other basic social services, they communally chose to stay in the relocation site. Limited to absent livelihood projects and programs are provided to these indigenous peoples. Livelihood options of indigenous peoples in their relocation site is limited to subsistence handicraft production with meager income. Mamanwas were employed as a daily-wage laborer of the Community Association that operate the Sohoton Cave and Natural Bridge in Basey. This employment helps augment their household income and support the daily needs of their families. However, and despite this opportunity, informants still experience varying forms of discrimination in their larger community and from some of their customers. There is a need to implement livelihood and enterprise development projects to help indigenous peoples, especially to those who suffered fro

Keywords
hospitality, tourism, post-disaster, recovery, indigenous peoples, Philippines, Haiyan

Topic
Hospitality and Tourism

Link: https://ifory.id/abstract/bMDBYNL2FkJA

Corresponding Author
Selvi Lukman

Institutions
Bandung Institute of Technology
Jalan Ganesha 10, Bandung 40132, Indonesia
State Key Laboratory of Rail Traffic,Control and Safety
Beijing Jiaotong University

Abstract
This paper presents the estimation of received power signal based on the Support Vector Regression (SVR). The simulated datasets are used, which contain the positions of transmitter (Tx) and receiver (Rx) , the distance between the TX and RX, and the corresponding path loss, and the carrier frequencies. SVR presents the accuracy estimation of simulated datasets computing which shows Mean Square Error (MSE) as the average value of estimation errors that are squared, Root Mean Square Error (RMSE) as another parameter for measuring the accuracy of a estimation as a root value of MSE Average Root also R² as the coefficient of determination tool for measuring how far the ability of the model in explaining some variations in the dependent variable. If the value of R² approaches one, it means that predictive results can follow variable patterns or variations well dependent. Cross Validation is a performance measurement .The aim is to find the best hyper-parameter combination so that machine learning can predict data accurately and prevent over-fitting problems. Optimal parameter values are determined by using the Grid Search Method, where machine learning will do modeling using the range C ɤ and ɛ given. Therefore, SVR Hyper-Parameter shows the most optimized parameter with C which affects the penalty given when there is an error in classification , Gamma that affects the pace of learning process, Epsilon indicates the error limit than can be ignored. The parameter values that produce the highest accuracy or the smallest error will be chosen as the best parameter.

Keywords
Estimation Machine Learning, Path Loss, Received Power Signal, SVR, 5G-R

Topic
Control System

Link: https://ifory.id/abstract/kqMA7tbR6cnm

Corresponding Author
Yasinta Rakanita

Institutions
Sekolah Tinggi Ilmu Farmasi Pelita Mas

Abstract
Penelitian ini bertujuan menguji ada tidaknya kandungan senyawa metabolit sekunder pada fraksi daun kelor, perbedaan efek ketiga fraksi n-heksan,fraksi etil asetat, dan fraksi etanol-air dan fraksi mana yang lebih efektif dalam menurunkan kadar glukosa darah dan memperbaiki gambaran histopatologi ginjal pengujian menggunakan tikus sebanyak 30 ekor dibagi menjadi enam kelompok yaitu perlakuan kelompok kontrol normal, kontrol negatif dan kontrol positif (metformin),dan perlakuan yang masing-masing diberikan fraksi n-heksan,fraksi etil asetat dan fraksi etanol air dengan dosis 300 mg/kg BB. Pengukuran kadar glukosa darah dilakukan pada hari ke-0, 35, 42 dan 49 setelah diberi perlakuan. Data yang diperoleh berupa kadar glukosa darah dianalisis dengan analisis One Way ANOVA pada taraf kepercayaan 95% kemudian dilanjutkan dengan uji Least Significant Difference (LSD). Data nilai kerusakan ginjal di analisis dengan uji Kruskal-Wallis dan dilanjutkan dengan uji Mann-Whitney untuk melihat perbedaan antara perlakuan. Hasil dari penelitian menunjukkan terdapat senyawa metabolic sekunder pada fraksi daun kelor yaitu senyawa alkaloid,flavonoid,tanin,fenolik dan saponin. Fraksi etanol air dosis 300 mg/kg BB paling efektif menurunkan kadar glukosa darah dengan nilai rata-rata 114,6 mg/dl dan fraksi etanol air dosis 300 mg/kgBB dapat memperbaiki gambaran histopatologi ginjal dengan nilai rata-rata kerusakan skor 0,4

Keywords
Fraksi, daun kelor (Moringa oleifera Lam.), kadar glukosa darah, histopatologi ginjal

Topic
Farmakognosi dan Fitokimia

Link: https://ifory.id/abstract/yMeJ6xvQanKu

Corresponding Author
Joni Tandi

Institutions
Sekolah Tinggi Ilmu Farmasi Pelita Mas

Abstract
Penelitian ini bertujuan menguji ada tidaknya kandungan senyawa metabolit sekunder pada ekstrak etanol, seduhan simplisia dan jus umbi bawang hutan, pada tikus jantan parameter glukosa dan histopatologi ginjal. Menggunakan hewan uji sebanyak 30 ekor tikus putih jantan dibagi menjadi 6 kelompok dan tiap kelompok terdiri dari 5 ekor tikus dengan rincian kelompok I sebagai kontrol normal, kelompok II sebagai kontrol negatif yang diberikan suspensi Na-CMC 0,5%, kelompok III sebagai kontrol positif yang diberikan suspensi Metformin 45 mg/kg BB, dan kelompok IV,V,VI sebagai kelompok uji diberikan ekstrak etanol, seduhan simplisia dan jus umbi bawang hutan dengan masing-masing dosis 20 g/kg BB. Hasil penelitian menunjukkan bahwa terdapat senyawa metabolit sekunder pada ekstrak etanol umbi bawang hutan yaitu flavonoid dengan hasil kuantitatif 6,213 %, saponin 10,658 %, alkaloid 0,2 % dan tanin 0,031 %. Pemberian ekstrak etanol umbi bawang hutan memberikan efek menurunkan kadar glukosa darah pada dosis 20g/kgBB dengan rata-rata 133.6 mg/dL dan regenerasi sel ginjal pada tikus putih dosis 20g/kgBB dengan rata-rata 0,75.

Keywords
umbi bawang hutan (Eleutherine bulbosa (Mill) Urb.), diabetes, histopatologi ginjal

Topic
Farmakognosi dan Fitokimia

Link: https://ifory.id/abstract/RZfwb2F8cLrg

Corresponding Author
Siti Mudaliana

Institutions
1UPT Laboratorium Herbal Materia Medica Batu, Dinas Kesehatan Provinsi Jawa Timur

Abstract
Buah mengkudu sering digunakan dalam pengobatan tradisional, terutama untuk diabetes. Masyarakat Jawa Timur memanfaatkan buah mengkudu dengan dua cara, yaitu dengan meminum jus buah mengkudu segar atau jus hasil proses fermentasi. Hanya saja, keamanan dan kualitas sediaan hasil fermentasi ini belum teruji secara ilmiah. Penelitian ini bertujuan untuk membandingkan jus buah mengkudu segar dan sediaan hasil fermentasi. Sediaan pertama berasal dari jus buah mengkudu yang sudah matang di pohon. Buah mengkudu ini dihaluskan dengan blender. Sediaan kedua berasal dari proses fermentasi yang dilakukan dengan cara, buah mengkudu dimasukkan ke dalam toples kaca transparan steril, kemudian ditutup rapat dan didedahkan di bawah sinar matahari langsung selama 6 minggu. Jus yang keluar dari proses ini kemudian ditampung untuk dianalisis lebih lanjut. Analisis dilakukan terhadap angka lempeng total, angka kapang khamir, serta kandungan fitokimia. ALT dan AKK pada sediaan fermentasi adalah 0 dan 5,1x103 cfu/ml, sedangkan jus segar mengandung bakteri 3,1x103 dan fungi 0 cfu/ml. Mengkudu hasil fermentasi diketahui mengandung flavonoid dan triterpenoid, sedangkan mengkudu segar mengandung flavonoid, alkaloid, saponin, dan triterpenoid. Analisis lebih lanjut menunjukkan kedua jenis sediaan tidak mengandung flavonoid jenis quercetin, rutin, dan katekin. Dapat disimpulkan bahwa proses fermentasi tidak menghasilkan produk yang lebih berkualitas, bahkan terlihat fermentasi mengurangi kandungan fitokimia buah mengkudu.

Keywords
Mengkudu, buah noni, Morinda citrifolia, fermentasi, jus buah mengkudu

Topic
Etnomedisin dan Etnofarmakologi

Link: https://ifory.id/abstract/haQvr2g7mfCb

Corresponding Author
Wahyunia Likhayati Septiana

Institutions
a) Departemen Patologi Anatomi Fakultas Kedokteran Universitas Pembangunan Nasional "Veteran" Jakarta
b) Mahasiswa PSSK Fakultas Kedokteran Universitas Pembangunan Nasional "Veteran" Jakarta
c) Departemen Histologi Fakultas Kedokteran Universitas Gunadarma
d) Departemen Parasitologi Fakultas Kedokteran Universitas Pembangunan Nasional "Veteran" Jakarta

Abstract
Hiperkolesterolemia-diabetes dapat membuat cedera endotel yang dapat berakibat pada pembentukan aterosklerosis yang diawali dengan terbentuknya sel busa. Penelitian akan melihat efektivitas latihan fisik dan ekstrak daun sirsak (Annona muricata) terhadap penurunan sel busa. Penelitian ini menggunakan studi eksperimen dengan rancangan the post test-only control group design dengan menggunakan 28 ekor tikus galur wistar yang secara random dibagi ke dalam 7 kelompok masing-masing terdiri dari 4 ekor. Kelompok I (KN1) diberikan pakan standar, kelompok II (KN2) diberikan pakan aterogenik dan aloksan, sedangkan kelompok III (KP1), IV (KP2), V (P1), VI (P2), dan VII (P3) diberikan pakan aterogenik dan aloksan lalu diberikan perlakuan sesuai kelompoknya. Kelompok KP1 diberikan simvastatin, KP2 diberikan metformin, P1 diberikan latihan fisik, P2 diberikan ekstrak daun sirsak (EDS), dan P3 diberikan kombinasi latihan fisik dan EDS. Diakhir penelitian, tikus dieutanasia dan diambil organ aorta untuk dilakukan pembuatan preparat agar melihat gambaran sel busa. Hasil Uji Kruskall-Wallis dan Uji Pos Hoc Mann-Whitney menunjukkan nilai signifikansi (p<0,05) artinya terdapat perbedaan signifikan antara kelompok KN2 dengan P1, P2, P3 sedangkan antara kelompok KP1 dan KP2 dengan P1, P2, P3 didapatkan (p>0,05). Kesimpulan dari penelitian ini adalah latihan fisik, EDS dan kombinasinya memiliki efek untuk menurunkan pembentukan sel busa aterosklerosis.

Keywords
Hiperkolesterolemia, diabetes, latihan fisik, ekstrak daun sirsak, sel busa

Topic
Bioteknologi dan Molekular Tanaman Obat

Link: https://ifory.id/abstract/RdP8eTDX23gp

Corresponding Author
Desy Muliana Wenas

Institutions
(a) Laboratorium Farmakologi, Fakultas Farmasi, Insititut Sains dan Teknologi Nasional, Jakarta

Abstract
Some part of banana could be used for traditional medicine. The corm of banana contains more potential phytochemical than the stem sap or the fruit skin. Therefore, the corm of banana is being studied. The aim of this research is to determine the effect of Banana Corm Extract (KBCE) on aloxan-induced rat. The banana corm was being dried, powdered and extracted using 70% ethanol by maceration method for 24 hours for 3 times. Extract with concentration of 10%, 15%, 20%, glibenclamide as positive control, CMC-Na as negative control are prepared. Six groups of 4 male wistar rats, were wounded and given the treatment respectively 5 ointments and 1 without any treatment. The ointments were applied twice a day for 10 days. The wound is measured every day until 10 day to calculate the percentage of wound healing. The result is analyzed using ANOVA statistical method. The 20% concentration of banana extract can help reduce blood sugar rate better than the positive control. Therefore, banana corm extract can be considered as potential drug for diabetic.

Keywords
aloxan, banana corm extract, blood sugar rate, rat

Topic
Farmakologi dan Klinik TOOT

Link: https://ifory.id/abstract/vkMmh73pdrCx

Corresponding Author
Retno Yulianti

Institutions
Fakultas Kedokteran UPN Veteran Jakarta

Abstract
Diabetes mampu menyebabkan kerusakan jaringan akibat hiperglikemia dan hiperkolesterolemia. Stres oksidatif dapat menyebabkan peroksidasi lipid yang dinilai melalui kadar malondialdehid. Modifikasi gaya hidup dengan latihan fisik meningkatkan ambilan glukosa dan menurunkan profil lipid. Ekstrak daun sirsak berpotensi menurunkan kadar MDA. Penelitian ini bertujuan untuk mengetahui efek ekstrak daun sirsak dan latihan fisik serta kombinasi terhadap kadar MDA hepar tikus diabetik. Sebanyak 25 ekor tikus putih jantan galur Wistar, dikelompokkan menjadi lima kelompok dengan perlakuan berbeda yaitu: pakan standar dan aquades (K1), pakan tinggi lemak dan metformin 45mg/kgBB/hari (K2), pakan tinggi lemak dan vitamin E 150 IU/kgBB/hari (K3), pakan tinggi lemak dan latihan fisik sedang 20 meter/menit (K4), pakan tinggi lemak dan ekstrak daun sirsak 150 mg/kgBB/hari (K5), pakan tinggi lemak dan kombinasi (K6). Ekstrak daun sirsak diberikan selama 21 hari setelah diinduksi aloksan dan pakan tinggi lemak selama 5 minggu. Analisis data menggunakan uji One Way ANOVA dan dilanjutkan dengan uji Post Hoc LSD. Pada kelompok K6 mampu menurunkan GDS 70.97% dan kolesterol 62.47% dan bermakna dalam menurunkan kadar MDA 0,9 µMol. Kesimpulan penelitian ini bahwa kombinasi ekstrak daun sirsak dan latihan fisik memiliki kemampuan menurunkan kadar MDA jaringan hepar.

Keywords
Annona muricata, malondialdehid

Topic
Bioteknologi dan Molekular Tanaman Obat

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

Corresponding Author
Retno Yulianti

Institutions
Fakultas Kedokteran UPN Veteran Jakarta

Abstract
Komplikasi diabetes melitus terjadi melalui proses stres oksidatif akibat produksi ROS yang dipicu hiperglikemia. Stres oksidatif dapat menyebabkan peroksidasi lipid yang dapat dinilai melalui kadar malondialdehid (MDA). Ekstrak daun sirsak (Annona muricata) berpotensi menurunkan kadar MDA. Penelitian ini bertujuan untuk mengetahui efek pemberian ekstrak daun sirsak terhadap kadar MDA hepar tikus diabetik. Sebanyak 30 ekor tikus putih jantan galur Wistar, dikelompokkan menjadi lima kelompok dengan perlakuan berbeda yaitu: (1) pakan standar dan aquades (K1), (2) pakan tinggi lemak dan vitamin E α-tokoferol 150 IU/kgBB/hari (K2), (3) pakan tinggi lemak dan ekstrak daun sirsak 75 mg/kgBB/hari (K3), (4) pakan tinggi lemak dan ekstrak daun sirsak 150 mg/kgBB/hari (K4), (5) pakan tinggi lemak dan ekstrak daun sirsak 300 mg/kgBB/hari (K5). Ekstrak daun sirsak diberikan selama 21 hari setelah diinduksi aloksan dan pakan tinggi lemak selama 5 minggu. Analisis data menggunakan uji One Way ANOVA dan dilanjutkan dengan uji Post Hoc LSD. Pada kelompok K4 terdapat penurunan kadar MDA mencapai 223.4 nm/mL yang lebih rendah dibandingkan kelompok kontrol. Pada kelompok K3 dan K5 tidak terdapat penurunan kadar MDA yang signifikan jika dibandingkan dengan kontrol. Kesimpulan penelitian ini bahwa ekstrak daun sirsak yang mampu menurunkan kadar MDA pada dosis 150 mg/kgBB/hari.

Keywords
ekstrak daun sirsak, malondialdehid

Topic
Bioteknologi dan Molekular Tanaman Obat

Link: https://ifory.id/abstract/pGU3rLm4CKjb

Corresponding Author
Yusuf Subagyo

Institutions
Faculty of Animal Science, Universitas Jenderal Soedirman
*yssp2015[at]gmail.com

Abstract
The purpose of this study was to measure the adaptability and productivity of local dairy cows in Banyumas district. About 30 lactation dairy cows from two groups of dairy farmers in the Baturraden and Sumbang sub-districts of Banyumas district were used in this study. To find out the adaptability is done by measuring the rectal temperature and the frequency of respiration at 06.00 am, 10.00 am and 14.00 am. Milk productivity was measured by measuring milk every day. Measurement of all parameters was carried out for one month. The results showed that there were no significant differences (P> 0.5) between the two sub- districts for all variables, namely: rectal temperature, respiratory frequency, HTC Benezra and Rhoad, and daily milk production. It can be concluded that the adaptability of local Holstein – Frisien dairy cows in Banyumas district is good, while milk production is moderate.

Keywords
Rectal temperature; Respiratory frequency; HTC; Milk production

Topic
General animal production and husbandries (ruminants and non-ruminants)

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

Corresponding Author
Afduha Nurus Syamsi

Institutions
a)Departement of Diary Production, Animal Science Faculty, Universitas Jenderal Soedirman Purwokerto
*nurussyamsiafduha[at]gmail.com
b)Departement of Animal Science, Agriculture Faculty, Universitas Tidar Magelang

Abstract
The aim of this study is to examine the interaction between the meal protein source with the protein-energy synchronization index (PES) in the dairy ration on the profile of branch chain volatile fatty acids (BCVFA). The study was carried out in vitro, using factorial completely randomized design (CRD-Factorial). The first factor was 2 types of meal protein source (soybean meal and coconut meal) and the second factor was 3 levels of PES index (0.5, 0.6, and 0.7), there were 6 treatment combinations, each treatment was repeated 4 times. The results of the study showed that the interaction between the meal protein source and the PES index was not significantly affected (P> 0.05) on the levels of iso butyrate, iso valerate and valerate. The study concluded that the low PES index ration (0.5) produced a decent BCVFA profile using coconut or soybean meal.

Keywords
branched chain volatile fatty acids; meal protein source; synchronization protein-energy index

Topic
Feeds, feeding, and animal nutrition

Link: https://ifory.id/abstract/e4VGDCNznpRr

Corresponding Author
NURHAYATI SEMBIRING

Institutions
Department of Industrial Engineering, Faculty of Engineering, Universitas Sumatera Utara,
Jalan Almamater Kampus USU, Medan, Indonesia 20155
nurhayatipandia68[at]usu.ac.id
araapul_tambunan[at]yahoo.com
ir.elisabethginting[at]gmail.com

Abstract
The high demand from consumer for environmental welfare issues is a driving factor for increased research in management of sustainable supply chain (SSC). The output of this study are needed by companies and organization in making the decisions that important to produce products and services related to sustainability. Performance measurement of a SSC, not only measured economically, but also related to social and environmental performance. All stages in the form of planning and managing all activities involved in Supply Chain Management (SCM) such as procurement, conversion, logistics, communication, and collaboration with partners, must be carried out with high quality. The entire management process, especially those relating to supply and demand in and throughout the company or organization must be carried out integrative.

Keywords
Sustainability; Supply Chain Management; organizational

Topic
Industrial Engineering

Link: https://ifory.id/abstract/hfD8XkEAtWcM

Corresponding Author
Muh. Turizal Husein

Institutions
Prodi Perbankan Syariah Fakultas Agama Islam Universitas Muhammadiyah Tangerang

Abstract
This study aimed to determine and analyze the influenced of perceptions and interests of the society towards the Islamic insurance. The unit of the analysis that used in this study was the Islamic insurance society in the city of Tangerang. The type of research was field research with a quantitative approach. The sampling technique was used purposive sampling method. The data used were primary data obtained based on respondents answers to the questionnaires that had given. This study used multiple linear regression analysis with classical assumption test, descriptive analysis, t test (partially), F test (simultaneously), and coefficient test. The results showed that partially the perception and interest variables of the society had a significant positive effect on Islamic insurance. Furthermore, simultaneous perception variables, and publics- interest had a significant positive effect on Islamic insurance in the city of Tangerang. Perceptual variables, and interests together influenced purchasing decisions by 45.7%, and the remaining 54.3% were influenced by other variables that did not explained in this research.

Keywords
Insurance, Islamic, Perception, Interest

Topic
Education and Social Change

Link: https://ifory.id/abstract/3ctW9HhdkvKw

Corresponding Author
Hary Efendi

Institutions
Andalas University, Padang

Abstract
Changes in the mechanism of regional head elections from a representative system to direct elections gave rise to the dynamics of high political leadership succession in various regions in Indonesia, especially in West Sumatra compared to the previous period. If in the old order and the new order, the regional head starting from the governor, regent and mayor are determined by the central government, so since 2005 the head of the region has been determined directly by the people. Along with the change in mechanism, the emergence of the phenomenon of "urang pandai" in each agenda of regional head elections in West Sumatra. This article describes the involvement and role of "lack of intelligence" in direct regional head elections (Pilkadal) simultaneously governors, regents and mayors in parts of West Sumatra. Starting from Pilkadal 2005, 2010 and 2015. This paper will also analyze the relationship "urang pandai" in Pilkadal. This issue will be explained by a multidimensional approach, especially the branch of political-anthropology. In constructing this writing, it is built through historical methods. The role of "urang pandai" in the elections in West Sumatra was confirmed through various activities. His contribution to Pilkadal can be a spiritual advisor, political advisor and successful team. This is evidenced by the practice he did. Starting from giving guidance, spiritual advice, prayer, tahlilan, even ajimat and mass. Their relationship in Pilkada is more to accumulate social capital, cultural capital, and symbolic, compared to economic capital.

Keywords
urang pandai, local politic, direct election,

Topic
Local Politics and Decentralization

Link: https://ifory.id/abstract/KkvXVrftyPD7

Corresponding Author
Rusdiah Iskandar

Institutions
FEB UNMUL

Abstract
Stock price is one indicator of the success company management. If stock prices increase, investors or potential investors assume that the company has successfully managed their business. Stakeholders and shareholders also hope that company management can manage their resourches to be able to create value added of intellectual capital. In achieving the company-s goals, management need a system that can control the company by implementation of good corporate governance. Good corporate governance is believed to be able to encourage professional management. The purpose of this research was to examine the impact of intellectual capital and good corporate governance on financial performance and stock prices. The population of this research is manufacturing companies listed on the Indonesian stock exchange the period 2012-2018, a total sample of companies amounted to 14 samples were taken by using purposive sampling method. The results of this study indicate that (1) intellectual capital has significant positif effect on financial performance, (2) Intellectual capital has not significant positif effect on stock prices, (3) good corporate governance has not significant negative effect on financial performance, (4) good corporate governance has significant negative effect on stock prices, (5) intellectual capital has significant positif effect on stock prices with financial performance as intervening variable, (6) good corporate governance has not significant negative effect on stock price with financial performance as intervening variable, and (7) financial performance has significant positive effect on stock prices.

Keywords
Intellectual Capital, GCG, Financial Performance, Stock Prices.

Topic
Management

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

Corresponding Author
Rizal Rizal

Institutions
Politeknik Negeri Jember

Abstract
The objectives of this study are: 1) To analyze the level of community empowerment of dairy cattle agro-tourism in Krucil District, Probolinggo Regency; 2) Analyzing the impact of the development of dairy cattle agro-tourism on community and economic empowerment of communities in the agroeduwisata area of Krucil District, Probolinggo Regency; and 3) Develop strategies or priority programs for developing dairy cow agro-tourism that can enhance the benefits and contribution of positive changes to the community of the agroeduwisata area in Krucil District, Probolinggo Regency. This study uses an Ex post facto design whose data collection lasts for two months starting in June to July 2019. The research location is in the KUD Argopuro Village, Krucil Village, Krucil District, Probolinggo as a tourist destination for dairy cows. The study population was people living in the KUD Agropuro area. The sample is determined by unproportional sampling, which is a sample of 30 local people and 30 farmers. spread in the villages of the Toll Collection (TPS). There are 8 villages that each village has 1 TPS supplier of raw material for Argopuro KUD milk. The 8 villages are spread in Krucil District, Probolinggo Regency, Central Java. Data was collected by questionnaires, documentation and semi-structured interviews after previously tested the validity and reliability of the instrument. Data is collected using; questionnaire, observation and deepening by conducting semi-structured interviews, as well as interviews with experts who have research information. Observations are made to observe and obtain information that is useful for obtaining accurate and accurate information and data. In addition, Expert choice is used by tourism agro-stakeholders who have research information to obtain data and information on the formulation of strategies to increase socio-economic impacts and human resources using the ISM (Interpretative Structural Modeling) method. The results of the study show that the development of agro-tourism areas has a positive and significant impact on community empowerment, social conditions, and economic conditions of the community. Factors that play a key role in community empowerment from ISM results are interpersonal skills and decision-making capacity. While the factors that play a key role in social factors from the ISM results are aspects of participation and public perception, and factors that play a key role in the economic conditions of the agro-tourism region based on the results of ISM analysis are aspects of income and employment.

Keywords
Agro-tourism, community empowerment, community empowerment, community economy.

Topic
Agroindustry and Agribusiness

Link: https://ifory.id/abstract/XmvbhZtnYVE8

Corresponding Author
Yuli Frita Nuningtyas

Institutions
Lecturer Animal Nutrition, University of Brawijaya, Malang, Indonesia

Abstract
The aims of the research was to determine the ability of the inhibition bioactive compounds on celery as a pathogenic bacteria such as Salmonella, Escherichia coli and Clostidium perfrinens were found in broiler digestive tracts. The stages of the study were the determinated of celery plants, phytochemical content test in celery extraction and inhibitory test on Salmonella, Escherichia coli and Clostidium perfrinens with P0 concentration: negative control (aquades), P1: positive control (5 µg / ml amoxicilin), P2: 2,5 mg / ml celery extraction, P3: 5 mg / ml celery extract, and P4: 10 mg / ml celery extract. The variables observed were the inhibition zone diameter using the disc method. The data obtained is tabulated with the Microsoft Excel program, then analyzed using a completely randomized design (CRD) where the significantly differences will be analyzed using Duncans analysis. Based on the results study showed that the results of plant determination were celery (Apium gravolens, Linn). The addition of celery extract with a concentration of 10 mg / ml showed a higher inhibitory power compared to the use of antibiotics against salmonella and E coli bacteria.

Keywords
Clostridium perfringens, extraction, Escherichia coli, Salmonella, celery

Topic
Animal Nutrition, Animal Production, and Veterinary Science

Link: https://ifory.id/abstract/JmrLPC42bEAq

Corresponding Author
Maman Kusman Sulaeman

Institutions
Unikom, Bandung- Indonesia
Padjadjaran University, Bandung - Indonesia

Abstract
This study aims to compare early and current research on work ethics and Islamic work ethics. The first was done among 300 managers of small and medium scale business in three provincial capital cities in West Java, South Sumatra and South Kalimantan, while Islamic work ethics was studied among employees of five Syariah Bank in Banda Aceh. The first use SPSS-s factor and Ward-s hierachy cluster methods found four clusters of managerial work patterns, while the recent study using SEM and PLS find significant model relating Islamic work ethic to transformational leadership and OCB. Comparing the two studies enrich the implementation of the research strategic and policies.

Keywords
managerial work patterns, Islamic work ethics, Islamic work ethic relationship model

Topic
Management

Link: https://ifory.id/abstract/AT4D2VjCUpMc

Corresponding Author
Rizal Budi Santoso

Institutions
a) Master of International Relations, Padjadjaran University, Indonesia
*budisantosorizal[at]gmail.com
b) International Relations Department, Padjadjaran University, Indonesia
c) International Relations Department, Padjadjaran University, Indonesia
d) International Relations Department, Padjadjaran University, Indonesia

Abstract
The purpose of this study is to explain China-s peaceful development using public diplomacy toward Taiwan along with Chinas focus on increasing its image in the world through Chinese soft power resources. Specifically, this study will identify the influence of Chinese public diplomacy on Taiwan to promote a positive image and increase communication, trade and exchanges. The research method used qualitative methods to describe Chinese public diplomacy towards Taiwan. Data that support this research are obtained using literature studies in scientific journals, data publications, official sites, and other sites. The results showed that in order to win the hearts and minds of the Taiwanese people, Chinas public diplomacy approach has provided open access for Taiwanese students to enter university or work in China. In addition, the economic strength of China has strengthened economic interaction in cross-strait relations with the approval of the Economic Cooperation Framework Agreement (ECFA) in 2010 which became an important milestone in cross-strait economic development that could develop into a cross- strait free trade agreement.

Keywords
China, Taiwan, Public Diplomacy

Topic
International Relation

Link: https://ifory.id/abstract/BMtEF7cLjmex

Corresponding Author
Ahmad Taufiq

Institutions
1Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5 Malang, 65145, Indonesia
2Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand

a)Corresponding author: nurul.hidayat.fmipa[at]um.ac.id

Abstract
A very careful X-ray diffraction (XRD) data collection and analysis is inherently important prior to further materials characterizations. More importantly when we deal with structural analysis, XRD is the best choice in terms of a simpler and easier approach as against other sophisticated instruments, like high-resolution transmission electron microscopy (HR-TEM) or small angle neutron scattering (SANS). Furthermore, the Scherrer equation provides an excellent feature to calculate the size of sub-micrometer crystallites or particles through the XRD pattern-s broadening peak. This present paper explores some analytical approaches to accurately extract the crystallografic structure and estimated particle size of magnetite (Fe3O4) and zincite (ZnO) nanoparticles which were prepared by simple coprecipitation approach. Single line analysis on the broadening XRD peak was computed with Lorentzian fitting to calculate the full width at half maximum (FWHM) for particle size calculation using Scherrer equation. Further full pattern XRD data analysis was executed by means of Rietveld method using Rietica and MAUD open-source softwares. From the refinement results, our analysis confirmed both softwares are powerful in determining the lattice parameters and particle size, even MAUD can plot the size distribution, and the results are in line with the HR-TEM and SANS data.

Keywords
Rietveld analysis, crystal structure, magnetite, zincite, nanoparticle.

Topic
Bionanotechnology

Link: https://ifory.id/abstract/RQWqJBbUaZn7

Corresponding Author
Dadang Jaenudin Jaenudin

Institutions
Universitas Pakuan

Abstract
The aim of this research is to improve students- ability in problem solving and creativity through project based learning under biotechnology material. This research is conducted to twelfth grade of SMA Yapida Gunung Putri Bogor. Quasi experiment with non-equivalent pretest-posttest control group design is used. Test instrument is used for measuring problem solving ability and creative thinking. The result shows that there is an improvement in problem solving and creative thinking ability in experimental class after applying project based learning. The score of n-gain for problem solving ability in experimental group is 0,73 (high) and control group is 0,53 (medium). The n-gain score for creative thinking ability in experimental group is 0,73 (high) and in control group is 0,53 (medium). Hypothesis testing of n-gain score for problem solving and creative thinking skill is 0,001 (significant). Project based learning gives students learning experience which initiated with authentic and factual problem; therefore it can help students in finding appropriate solution. In conclusion, project based learning can be applied as alternative for improving students- ability in problem solving and creative thinking in high school students.

Keywords
project based learning, problem solving ability, creativity

Topic
Learning / Teaching Methodologies and Assessment

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

Corresponding Author
Elfia Nora

Institutions
Univesitas Negeri Malang

Abstract
The type of research being used is descriptive and quantitive research. The data is descriptive reseacrh and path analysis. The sample are taken from 53 respondents, using the simple random sampling method. These respondents are employees of UD.Barokah Trenggalek. The result of Path analysis test show that: There is a significant negative direct role ambiguity on employee job satisfaction; There is a significant positif direct role ambiguity on employee job stress; There is a significant negative direct employee job stress on employee job satisfaction. There is a negative and significant direct and indirect effect role ambiguity on job satisfaction through employee job stress. Based on the given result, the researchist argues, It is expected to maintain communication about good work between fellow employees and also with superiors to avoid misunderstanding in doing work at UD. Barokah Trenggalek.

Keywords
Role Ambiguity, Job Stress, Job Satisfaction

Topic
Management, Organization, Leadership and IT

Link: https://ifory.id/abstract/JkRNYfMVxv2b

Corresponding Author
Syihabudhin

Institutions
Universitas Negeri Malang

Abstract
The purpose of this study is to (1) determine the conditions of work environment, work engagement, and self efficacy at Hotel Pelangi Malang employees, (2) find out whether the work environment has a significant effect on work engagement at Hotel Pelangi Malang employees, and (3) find out whether self efficacy is able as the moderator variable that are significant on the influence of the work environment on work engagement at Hotel Pelangi Malang employees. The population in this study were all employees of Hotel Pelangi Malang with a fixed and contract status with a total of 64 employees. The sampling technique is proportional sampling and a sample of 55 respondents was obtained. The method of data collection is by survey, interview, and documentation. The results of this study are (1) the conditions of work environment, work engagement, and self efficacy at Hotel Pelangi Malang employees are included in the good/high category, (2) the work environment has a significant effect on work engagement at Hotel Pelangi Malang employees, and (3) self efficacy unable to be a significant moderator variable on the influence of the work environment to work engagement at Hotel Pelangi Malang employees.

Keywords
work environment, work engagement, self efficacy

Topic
Management, Organization, Leadership and IT

Link: https://ifory.id/abstract/gDGNzLdPVF3C

Corresponding Author
Esri Rusminingsih Rusminingsih

Institutions
Institute of Health Science Muhammadiyah Klaten
,Central Java. Indonesia

Abstract
Exclusive breast milk and milk Formula : How is the difference in the decrease in bilirubin after administration of phototherapy to neonates with hyperbilirubinemia? Esri Rusminingsih(a*), Romadhani T.P (a), Winarni (c), Marwanti (a), Ambar Winarti (a), Supardi (a), Chori Elsera (b) (a*) Departement of Medical Surgical Nursing,Institute of Health Science Muhammadiyah Klaten , Central Java. Indonesia Email : esrirusminingsih@yahoo.co.id (a) Departement of Medical Surgical Nursing,Institute of Health Science Muhammadiyah Klaten , Central Java. Indonesia (a) Departement of maternity Nursing,Institute of Health Science Muhammadiyah Klaten , Central Java. Indonesia. (c) Division of Neonatology, Muhammadiyah Hospital of Delanggu, Central Java, Indonesia Background: Increased hemolysis in neonates after birth increases the amount of unconjugated bilirubin. Low levels of glucoronyl transferase cause the baby cannot metabolize an increase in the load of unconjugated bilirubin resulting in hyperbilirubinemia. High levels of bilirubin can cause acute enchelopathy and in extreme conditions can cause Kern Jaundice. Hyperbilirubinemia in neonates requires medical treatment with phototherapy. Objective: To determine differences in bilirubin levels in neonates who received exclusive breastfeeding with neonates who received formula after phototherapy. Study design: This study used a retrospective study to look at changes in Total Serum Bilirubin (TSB) before and after phototherapy for 2 x 24 hours in neonates who exclusively breastfed and neonates with formula milk. Data was obtained from medical records during 2017. The number of samples was 23 neonates with ASI and 22 neonates with formula milk. Results: The results showed that the average age of the neonate was 5.22 days, the average TSB in neonates with ASI 17.01 mg / dl, and neonates with formula milk 16.22 mg / dl. After phototherapy, the average TSB in neonates with breast milk was 10.19 mg / dl, while neonates with formula milk 5.19 mg / dl. There were differences in TSB in neonates with breast milk and formula milk who received phototherapy (p <0.05). Conclusions: There was a significant reduction in TSB in exclusive breastfeeding neonates and neonates with formula milk. However, in neonates who received formula milk, a decrease in TSB was higher compared to neonates who exclusively breastfed. Keywords: Hyperbilirubinemia, Phototherapy, Total bilirubin serum, Exclusive breastfeeding, Formula milk, Neonates

Keywords
Hyperbilirubinemia, Phototherapy, Total bilirubin serum, Exclusive breastfeeding, Formula milk, Neonates

Topic
Health Science

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

Corresponding Author
Alvian Toto Wibisono

Institutions
1Department of Material Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember Surabaya, Indonesia.

Abstract
This paper reports investigation results of microstructure transformation and shape memory property in Cu-22Zn-7Al (%wt) shape memory alloy in heat treatment process with variable of various quench mediums. The alloy was made by melting process of Cu ingot, yellow brass and Al ingot. Molten metal was poured and solidified in permanent mold. Then, solid Cu-22Zn- 7Al alloy was heat treated by homogenizing and stress relief annealing. Martensite of the alloy was formed by heating Cu-22Zn- 7Al in Beta phase temperature then continued by cooling in air, oil, water and brine. Each of cooling medium has different effect in cooling rate. Chemical composition, microstructure, non-equilibrium transformation temperature, hardness and shape memory properties were investigated in detail. The result shows that martensite phase increases by enhancement of cooling rate. Alloy quenched by brine not only performs the best quality of martensite but also exhibits the highest shape memory recovery.

Keywords
Shape memory alloy, Cu-22Zn-7Al, Martensite formation.

Topic
Computation and Other Related Field

Link: https://ifory.id/abstract/mKxHC7p3jwrF