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Corresponding Author
Yulia Hafni
Institutions
Postgraduate School, Universitas Negeri Medan
Abstract
The study aims to determine the effect of Principal Leadership on Achievement Motivation, the influence of School Climate on Achievement Motivation, the influence of Principal Leadership on Teacher Work Commitment, the influence of School Climate on Teacher Work Commitment, and the effect of Achievement Motivation on Teacher Work Commitment. This research was conducted in 2019 to state junior high school teachers in Tanjung Morawa sub-district, with a population of 235 teachers. The number of samples determined by Slovin formula obtained 148 teachers, taken with the Proportional Random Sampling technique. Data collection was carried out using a questionnaire after being trialed. Validity Test is done by Product Moment Correlation and Reliability test using Cronbach Alpha coefficient. Data analysis techniques used are descriptive analysis, test requirements analysis, and hypothesis testing using path analysis. Research findings that Principal Leadership has a direct positive effect on Achievement Motivation, School Climate has a direct positive effect on Achievement Motivation, Principal Leadership has a direct positive effect on Teacher Work Commitment, School Climate has a positive direct effect on Work Commitment and Achievement Motivation has a direct effect on Teacher Work Commitment. To increase the Teacher work Commitment can be done by increasing the Principal Leadership, School Climate and Teacher Achievement Motivation.
Keywords
Principal Leadership, School Climate, Achievement Motivation, Work Commitment
Topic
Educational Policy and Administration Education
Corresponding Author
Wiharyanto Oktiawan
Institutions
(1)(2) Departement of Environmental Engineering, Universitas Diponegoro, Semarang, Central Java Indonesia
Abstract
The purpose of this study was to analyze the effect of leachate recirculation on decreasing organic pollutant content in leachate which was investigated in a laboratory-scale experiment using simulated landfill anaerobic biorecators (lysimeters). Leachate used in this study was artificial leachate which was made in high concentrations (BOD 3,758.19 mg/l and COD 7,406.67 mg/l) and low concentrations (BOD 641.30 mg/l and COD 1,279.33 mg/l). Leachate recirculation was carried out on vegetables and fruits waste in reactors with two operating conditions. The first group of reactors was operated with high concentration leachate and the second group was operated with low concentrations leachate. Each operation condition is carried out on 10 reactors which were arranged in series, while the reactor R1 as a control (single pass reactor) was operated without leachate recirculation. Recirculation is carried out every day for 90 days. BOD and COD in leachate samples were regularly monitored every week with two repetitions (duplo). The results indicate that leachate recirculation further increases the reduction of BOD and COD concentrations when compared with reactors without leachate recirculation. Removal of BOD in R1 reactors with addition of low and high concentrations of leachate are 68% and 68.13% respectively. While removal of BOD in reactors with addition of low and high leachate concentrations are 83.98% and 92.15%. In general, reactors with leachate recirculation have higher BOD and COD removal compared to reactors without leachate recirculation.
Keywords
Leachate Recirculation, anaerobic bioreactors, lysimeter
Topic
Environmental Technology
Corresponding Author
TUANI LIDIAWATI SIMANGUNSONG
Institutions
Chemical Engineering Department, Center for Environmental Studies, University of Surabaya
Abstract
Reducing solid waste generation is one of green campus achievement programs at University of Surabaya (Ubaya). It is important to quantify the amount and composition of solid waste generation of all the faculties because the data will determine the next step of solid waste management at Ubaya. The Faculty of Engineering significantly contributes to the amount of waste generation in Ubaya. A research related to Faculty of Engineering solid waste management needs to be conducted. The aims of the study were estimating the quantity of solid waste generation and observing the composition of solid waste in the Faculty of Engineering. The method of this research was survey of waste generation. The survey was conducted at classrooms and administrative office of the Faculty of Engineering . The estimation of waste generation was taken for 12 (twelve) days during April 2018. After collection, the waste materials were segregated into plastic bottle, plastic glass, plastic spoon, plastic straw, plastic packaging bag, food packaging, food waste, tissue, paper, and residue. The results of the research showed that the average daily solid waste generation faculty of engineering was to be 19.2 kgs. The solid waste composition was found to be plastic bottle 8.8% (1,7 kg/day), plastic glass 4.1 %(0,8 kg/day), plastic spoon 2% (0,4 kg/day), plastic straw 1% (0,2 kg/day), plastic packaging bag 9.9% (1.9 kg/day), food packaging 17.6% (3.4 kg/day), food waste 27%(5.2 kg/day), tissue 10.2% (2 kg/day), paper 9.8% (1.9 kg/day), and residue 9.6% (1.9 kg/day). The reducing potential of the waste was about 80%.
Keywords
solid waste characterization, waste generation, university of Surabaya
Topic
Environmental Technology
Corresponding Author
Ratih Wahyu Wijayanti
Institutions
a) Master Program of Energy, School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia
b) Tropical Architecture Technology Laboratory (TBA), Department of Architecture, Diponegoro University, Semarang, Indonesia
Abstract
Global warming is becoming a serious concern day by day. Indonesia still uses a large portion of fossil fuels in electricity generation, has made matters even worse due to carbon emissions. Government through PP No. 70 of 2009 issued an energy conservation policy stating that energy use must be carried out economically and efficiently. The objective of this policy for all sectors of life, not to mention the academic environment. Library spend a lot of energy consumption for support that activites especially in the lighting system. Observations and measurements were performed to see the illuminance of the library because when seen visually very bright. The results are then compared with the standard, whether it meets the minimum threshold or not or even exceed, and how the savings opportunities that can be done. The method that used in this research is data collection, measurement of illuminance, and search for savings opportunities through simulations. Based on methods, a savings opportunity is obtained by reducing the number of lamps used. If this step is applied then obtained savings of up to 514 kWh/year, equivalent to the electricity bill amounting to IDR 462.672.000, - from the lighting system.
Keywords
energy conservation; library; simulation
Topic
Energy Conservation and Efficiency
Corresponding Author
Dian Andry Puspita Sari
Institutions
a) School of Environmental Science, Post Graduate University of Indonesia, University of Indonesia
Jalan Salemba Raya 4, Jakarta Pusat 10430, Indonesia
*diyan_andry[at]gmail.com
Abstract
Pandeglang Regency has the potential tsunami disaster because it is located close to the megathrust segment of the Sunda Strait. The tsunami disaster caused negative impacts such as death, property loss, and damage that could be reduced by carrying out disaster risk reduction programs through strengthening community resilience. Resilience is related to the ability of the community to recover from shocks or pressure to the original state, a resilient community is able to return to the previous state relatively quickly. It is important to know the tsunami disaster resilience index in Pandeglang Regency to obtain recommendations or concepts for tsunami disaster mitigation that are appropriate in creating community resilience to tsunami disasters in Pandeglang Regency. The purpose of this study was to measure community resilience to the tsunami disaster in Carita, Pandeglang Regency using The Integrated Concept of Community Resilience (ICCR). This method has been modified and adapted to the conditions of Pandeglang Regency. Measurement indicators are developed based on internal and external factors that affect community resilience such as social, cultural and economic capital, risk governance, and spatial planning. The methodology used in this research is primary and secondary data collection methods. The analyses were based on data from household questionnaires, focus group discussions and in-depth interviews then translated into indicators that are analyzed statistically.
Keywords
Community resilience, Pandeglang, Tsunami
Topic
Urban Development and Resilient Community
Corresponding Author
Muhammad Ismail Hasan
Institutions
(a*) Faculty of Integrated Technologies, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
(b) Department of Architecture, Faculty of Built Environment, University of Malaya, 50603, Kuala Lumpur-Malaysia
(c) Architectural Design, Vocational School, Diponegoro University, Jalan Prof. H. Soedarto S.H, Tembalang-Semarang, 50275, Indonesia
Abstract
The types of window, either permanent or impermanent will influence the building thermal profiles. Natural ventilation is one of technique to create passive cooling design in the building. It can improve the quality of indoor air, thermal comfort and reduction of energy consumption for air conditioning. In this present work, a study on the type of natural ventilation and the effect to thermal building performance was conducted. There are two types of natural ventilation as main variable in this study, top hung window and jalousie window. To develop the study, a simulation used Computational Fluid Dynamics (CFD) also conducted. One natural ventilation as outlet also added in the simulation. Based on the data measurement and computer simulation, jalousie window can provide better thermal performance. The range of difference between indoor air temperature on the chamber with jalousie window and chamber with top hung window is 0.2°C to 0.5°C, showing greater heat loss. The average of amount on the indoor air flow also was found 0.0317 m/s higher in the chamber with jalousie window. Particularly in the inlet, it was clear that the velocity of incoming air flow is faster and significantly allowed greater air with lower temperature entered from outside to inside.
Keywords
building thermal performance; CFD simulation; natural ventilation; window types
Topic
Energy Conservation and Efficiency
Corresponding Author
Luki Subehi
Institutions
*Research Center for Limnology, Indonesian Institute of Sciences
**Research Center for Society and Culture, Indonesian Institute of Sciences
***Indonesia Power, Generating Unit for Mrica
Abstract
Abstract. Tropical lake is one of the unique ecosystems which are functioning in both ecological and economic services. Telaga Menjer as a volcanic lake, has strategic values as a hydropower plant, tourism, agriculture, capture fisheries and floating net cages farming. It influenced a degradation of water quality and quantity, nutrient enrichment and exceed the carrying capacity. Telaga Menjer has a catchment area of around 2.27 km2 with a lake surface area of 0.61 km2.The purpose of this research is to investigate the characteristic of lake to know the carryng capacity and utilization zone with a multidisciplinary approach. For measuring its depth, the Hondex PS-7 portable depth sensor is used with a maximum depth of 80 m. The water quality parameters stratification were measured by logger version CTD profiler with a depth interval of 1 m on July 2019. The results showed that DO values were observed until the bottom of lake (45 m). Moreover, Total Nitrogen (TN) was very high concentration, indicating more fertilizer from agriculture. Meanwhile, lower concentration of pesticides were obtained. Next, the land use management and economic values of these lakes and ecosystem should be elucidated in order to maintain the sustainability of the lake
Keywords
Telaga Menjer, Water quality, Carrying capacity, Zonation, Hydropower plant, Tourism
Topic
Environment, Health, and Safety
Corresponding Author
Purnawan Adi Wicaksono
Institutions
a) Industrial Engineering Department, Diponegoro University, Jl Prof Soedarto, SH, Semarang 50275, Indonesia
*purnawan[at]ft.undip.ac.id
b) Mathematics Department, Diponegoro University, Jl Prof Soedarto, SH, Semarang 50275, Indonesia
Abstract
This research proposes a business model for furniture industry to address circular economy concept. Circular economy aims to keep the resources in use for as long as possible, and recover the product and material at the end of its life cycle. Game theory is used in this research. The conceptual model proposes rent option so end users are possible to use the furniture in desired time period. Using rent option, the product could be taken back from the end user and could be sold or rent it again to another user. The concept of game theory is to formulate and suspect the situations of interaction between players involved, and also decisions taken. Therefore, game theory is used to determine optimal strategy among players. Player strategies are taken when it has reached the Nash Equilibrium. The propose model consists of 4 parties such as the furniture industry, remanufacturer, distributor, and end user. Payoff is determined for every player to observe each players- profit in addressing CE. Based on the result, there is 1 strategy that reached the Nash equilibrium. We also picked out 3 of 162 possible strategies that give the best advantages for all players. Each strategies contain players- prices decision, and for end user decision is the length of rent.
Keywords
Circular Economy, Game Theory, Nash Equilibrium, Furniture Industry
Topic
Sustainable Development
Corresponding Author
Andhy Bato Raya
Institutions
(a) School of Environmental Science, Universitas Indonesia, Jl. Salemba Raya No. 4, Jakarta, Indonesia
Abstract
One of the challenges in implementing the idea of Transit Oriented Development (TOD) around the Mass Public Transport System in tropical and humid regions is how to create comfortable outdoor thermal conditions for pedestrians. This study aims to model microclimate conditions and identify the level of thermal comfort in the main pedestrian pathway in the Dukuh Atas TOD area, Jakarta. Micro climate modeling and calculation of thermal comfort index based on Physiologically Equivalent Temperature (PET) using ENVI-met software.
Keywords
Thermal Comfort, Transit Oriented Development, urban micro climate
Topic
Environment, Health, and Safety
Corresponding Author
Ismu Rini Dwi Ari
Institutions
a, b, c) Regional and Urban Planning Department, Engineering Faculty Brawijaya University.
Jl. MT. Haryono no. 167 Malang 65145 Indonesia
*dwiari[at]ub.ac.id
Abstract
Access to safe water as a basic infrastructure is still a major problem throughout the world, and it is the main concentration to be solved as stated in SDGs pillars 6 and 9. Availability access to basic needs such as infrastructure of water is also one important homework to deal with for the Indonesian government along with the Universal Access 100-0-100. The main research aim is to measure the Water Poverty Index through the 5-component to propose a poverty eradication strategy of the water infrastructure at the community level. Jabung District in Malang Regency is chosen as the case study, consist of 15 villages, wherein at about 33,19% of households are the receiver of Raskin (Poor Rice) program – one of the poverty alleviation programs in Indonesia. Both field observation and depth interviews are conducted towards 548 heads of households at the compiling data. The WPI measurement indicates that 3 of the 15 villages have the unsafe value of WPI. Among the fifth component, the environment shows the worst scale of the WPI whereby 7 villages have a value of 35,7 (critical value), so integrated water management strategy by incorporating water balance for both domestic and non-domestic purposes is indispensable.
Keywords
Safe water, infrastructure, Water Poverty Index
Topic
Sustainable Development
Corresponding Author
Ranti Annisa Putri
Institutions
a) Environmental Engineering Department, Faculty Of Engineering, Diponegoro University
Jl. Prof. H. Soedarto S.H. Tembalang, Semarang, Indonesia
b) Electrical Engineering Departement, Faculty Of Engineering, Diponegoro University
Jl. Prof. H. Soedarto S.H. Tembalang, Semarang, Indonesia
Abstract
In the end of decade, we have been entered to the bad condition for water quality at the world. As well as we know that water is a primary demand for everyone. Ozone is a very reactive oxidant and it can oxidize any parameters in water quality and then that parameters can be reduced. The principal of electrical discharge ozone generator can produce ozone when the compilation of electricity flow through the electrode, after that the discharge electrons will bound with free air which containing O2 so that O3 (ozone is formed). In the research, electrical discharge for ozone generator were made with high voltage variation are 12 kV, 13 kV, 14 kV. Next, ozone concentration that produced by this generator is contacted to the ground water sample in Semarang which containing iron 5,85 mg/liter and not yet required by World Health Organization International Standard for drinking water that is 0,3 mg/liter. The result shows, the highest production ozone concentration by this generator is 33,41 ppm and it able to decrease iron contaminant up to 23% from 5,85 mg/liter to 4,53 mg/liter and the lowest is 2,85 ppm and it able to decrease iron contaminant up to 12% from 5,85 mg/liter to 5,15 mg/liter.
Keywords
Ground Water, Iron, Ozone, Ozonation Processed, Electrical Discharge
Topic
Environmental Technology
Corresponding Author
Dyah Ayu Larasati
Institutions
1)Department of Physics, Faculty of Science and Mathematics, Diponegoro University, Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275, Indonesia
*)dyahayularasati.2016[at]fisika.fsm.undip.ac.id
2)Department of Industrial Chemical Engineering Technology, Vocational School, Diponegoro University, Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275, Indonesia
3)Department of Engineering, Architectural Engineering, Diponegoro University, Indonesia
Abstract
Batik is one of Indonesias cultural heritages that spread across various regions with their unique characteristics, one of the regions that has batik industries is Pemalang Regency. However, batik industries also contribute to liquid waste. Wastewater containing pollutants such as waxes, resins, dyes and binders such as silicates produce high concentrations of Biochemical Oxygen Demand (BOD) and concentrated colors. There are still many batik enterprises that dispose waste water directly to environment without being processed first. The aim of this study is to degrade Remazol Black B and Biochemical Oxygen Demand (BOD) dyes in batik liquid waste to contact time variations 0, 15, 30, 45, 60 minutes with UVC-Ozone oxidation methods. The Ozone-UVC method is an alternative method for decolorization, and degradation BOD. The dye degradation test was carried out using Spectroquant UV / VIS Spectrophotometer and the BOD degradation test was carried out using Dissolved Oxygen - DO Meter AZ-8403. The result shows that the BOD degradation at batik wastewater was from 190.17 – 96.83 mg/L. Visually, the increase in treatment time makes the sample look clearer (decolorization), evidenced by the sample image and decreased absorbance results.
Keywords
Batik Wastewater;Remazol;Ozon/UV-C;Degradation
Topic
Environmental Technology
Corresponding Author
Jaka Windarta
Institutions
Diponegoro University
Abstract
Abstract – The increasing demand for energy from year to year is not balanced with the availability of energy resources. So that the utilization of existing energy must be carried out economically and efficiently according to Goverment Regulation No. 70 of 2009 and no exception in the academic environment. College as a place to gain knowledge, in their daily lives there are teaching and learning activities that require adequate lighting. Observations are made to see if the existing lighting system by the recommendation of the SNI or not and how the savings opportunities that can be done. This study uses a quantitative method by taking samples from 6 rooms which measured their illuminance and compared with the standards of SNI 03-6197-2000. Based on measurements and observations results, the opportunities for savings can be made by adjusting the number of light, set the time lights on, and how long the light is used. If these steps are implemented then we will get savings of up to IDR 569.203.200,- per year for 6 rooms from energy consumption on lighting systems.
Keywords
energy saving, lighting, SNI 03-6197-2000
Topic
Energy Conservation and Efficiency
Corresponding Author
Fadli Mulyadi
Institutions
National Institute of Technology, Bandung
Abstract
Liquid laboratory waste generated from water quality examination activities especially from the COD (Chemical Oxygen Demand) analysis. The COD wastewater contains Cr VI which potentially pollute the environment due to its carcinogenic effect. The research aimed to determine the efficiency of removal of Cr VI treated by a combination between precipitation and adsorption methods. In this research, the variations of precipitate and height of adsorbent were made. Two types of hydroxide precipitate between NaOH and Ca(OH)2 were used in this research at concentrations of 50%. The pH levels were adjusted between 8; 9; 10; 11 while the heights of adsorbent were varied of 7,5 cm, 15 cm, and 22,5 cm, respectively. Results showed that the highest Cr VI removal of 60,98% was obtained by precipitation process using Ca(OH)2 50% with the pH adjusted at 9,06. Whereas the significant adsorption efficiency was achieved 88.13% by the height of granular activated carbon of 22.5 cm with the addition of acidification process.
Keywords
COD contained wastewater, Hexavalent Chromium, Precipitation, Adsorption, Granular Activated Carbon.
Topic
Environmental Technology
Corresponding Author
Lucy Kurnianti
Institutions
a) Administrative Center, Universitas Indonesia, Depok 16424, Indonesia
*lucykurnianti[at]ui.ac.id
b) Department of Electrical Engineering, Universitas Indonesia, Depok 16424, Indonesia
Abstract
This paper present the community engagement program conducted at Banyu Biru Village in Banten, Indonesia related to seacoast waste and water quality. Banyu Biru Village has a potency to increase its economic gain from tourism. The aim of our community engagement program is to collect the water and seacoast waste database. These data can be used as a benchmark for evaluating the environment based on BlueMetric indicators created by Universitas Indonesia. The results of socialization and outreach activities revealed that majority of respondents aged 26-35 years old (33.3%), female (100%), having elementary education background (85.2%), and unemployed (66.7%). Other measurement results show that most respondents lack of knowledge about seawater pollution (55.6%), have a positive attitude (59.3%), and have not implemented the waste management (81.5%). The types of waste that have been processed by some residents of Banyu Biru Village are organic waste by burning. To increasing the knowledge, attitudes, and behaviors are needed so the goal of protecting the environment from the danger of water pollution can be achieved. It is hoped that the BlueMetric program can be carried out sustainably and can also be applied in other regions in Indonesia.
Keywords
BlueMetric; Community engagement; Seashore community; Seawater pollution; Seawater quality
Topic
Urban Development and Resilient Community
Corresponding Author
Badingatus Solikhah
Institutions
Accounting Department, Universitas Negeri Semarang, Indonesia
Abstract
Issues related to green industry and environmental accounting are urgent to be formulated by the government. The concept of environmental accounting for companies encourages the ability to minimize environmental problems. Environmental accounting will produce a quantitative assessment of the costs and impacts of environmental protection. The purpose of this study is to describe the extent of disclosure of carbon emissions and to describe the legal regulations in Indonesia which regulate environmental disclosure. This study also examined the effect of the Environmental Performance Awards on the quality of environmental disclosure. The samples in this study are 35 companies engaged in mining, energy, chemistry, pharmaceuticals, cosmetics, food and beverages that are listed on the Stock Exchange in 2012-2016. The data analysis method used is Structural Equation Modeling (SEM) with a Smart PLS 3.0 analysis tool. The result reveals that the practice of environmental disclosure at high profile companies on the Indonesia Stock Exchange is still low. This shows that the companys management awareness of environmental disclosure does not comply the Decree of the Chairperson of the Capital Market and Financial Institution Supervisory Agency Number: KEP-431 / BL / 2012 concerning Submission of the Annual Report. The results showed that the Environmental Performance Awards variable had a significant positive effect on the quality of environmental disclosure.
Keywords
Carbon Emission, Carbon Emission Disclosure, Legal Regulations Regarding Environmental Disclosure, Environmental Performance Awards
Topic
Sustainable Development
Corresponding Author
Aditya Affan Herdiyanto
Institutions
1 Faculty of Public Health, Diponegoro University, Semarang, Central Java, Indonesia
2 Vocational School, Diponegoro University, Semarang, Central Java, Indonesia
3 Faculty of Engineering, Diponegoro Uiniversity, Semarang, Central Java, Indonesia
4 Faculty of Animal and Agricultural Science, Diponegoro University, Semarang, Central Java, Indonesia.
Abstract
Soap nut is a plant that is known which are used as traditional detergent. Batik is usually recommended to be washed soap nut because it is considered as the most suitable washing agent to maintain its quality (batik color). Soap nut seeds contain saponins, a toxic alkaloid, these saponins produce foam and function as a washing agent, and can also be used as a cleaner for various kitchen utensils, floors, and even bathe and clean pets. This research aims to compare the quality of CV Renas batik soap nut detergent with batik soap nut produced by other industries. In this experiment include color analysis, odor analysis, pH analysis, density analysis and viscosity analysis of tested batik soap nut detergent. The results of the five sensory organoleptic tests found that CV detergents were compared with three competitor manufacturers batik soap nut detergent (detergent A, detergent B and detergent C) has a homogeneous shape, distinctive color and distinctive odor. While for the pH test the CV Renault detergent results were pH = 3.2, detergent A pH = 3.8, detergent B pH = 5.9 and finally detergent C pH = 4.2. For the density test, the detergent density of CV Rena = 1.0386 gr / ml, detergent A = 1.0255 gr / ml, detergent B = 1.0554 gr / ml and detergent C = 1,0068 gr / ml. And for the viscosity test, the result of CV Renas detergent = 1.61 cp, detergent A = 1.45 cp, detergent B = 5.86 cp and detergent C = 1.15 cp. The trial results obtained in organoleptic tests such as color, odor and shape are in accordance with the Liquid Detergent Quality Requirements SNI 06-4075-1996, while the pH and density are not in accordance with the existing quality standards.
Keywords
soap nut detergent; density; pH; color; odor; viscosity
Topic
Sustainable Development
Corresponding Author
Hanipah Hanipah
Institutions
1,2) School of Environmental Science, University of Indonesia, Jakarta, 10430, INDONESIA
hanipahtanjung[at]gmail.com, hayati.hasibuan[at]ui.ac.id
3) Department of Geography, University of Indonesia, Depok, INDONESIA
rudyptamb[at]yahoo.com
Abstract
The land use change from agricultural to industrial city took place in Karawang. Besides land conversion, transfer in water usage also increased for industrial needs. This is caused by poor water management in terms of distribution and control of water usage, mainly in the industrial and agricultural sectors. The area of irrigated land was reduced from 97,037 ha (2009) to 90,062 ha (2017), while the amount of dry land increased from 22,063 ha (2009) to 46,299 ha (2017). It showed that the lack of irrigation water management has an impact on the reduction of productive paddy fields. Therefore this research aims to formulate an action plan of water irrigation management. The study was conducted in West Telukjambe District, Karawang Regency. The method used stakeholder analysis and system dynamics modeling. Data obtained from observation and interview data, irrigated land area, and the amount of irrigation water availability. The results showed the overlapping and missing roles of several stakeholders in charge of irrigation water management in West Telukjambe. Model simulations showed the increasing of irrigation serving area for additional management performance of each stakeholder. Therefore, integrated management of irrigation systems needed to control the distribution and water irrigation efficient.
Keywords
irrigation management; irrigation efficiency; water usage; stakeholders analysis
Topic
Environmental Technology
Corresponding Author
Syahruddin Said
Institutions
Research Center for Biotechnology, Indonesian Institute of Sciences
Abstract
Biotechnology in animal production is widely used to increase not only the number of population of livestock animals to meet the requirement for world demand of animal products but also for endangered species to enhance the propagation and sustaining the current levels of biodiversity and genetic diversity. Biotechnologies can affect efficiency of reproduction and therefore also selection programs (artificial insemination, embryo transfer, sexing, cloning and other related techniques), improve determination of genetic values of animal (genetic markers, candidate genes and other related techniques, and biotechnologies can transform artificially the genome at the DNA level such as genetic engineering, gene transfer and related techniques. The objective of this study was to review the importance of the most common current biotechnologies on animal production and some results that have been implemented in Indonesia.
Keywords
Animal production, Biotechnology, biodiversity, genetic, reproduction
Topic
Animal production Technology
Corresponding Author
Siti Umi Kalsum
Institutions
Department of Environmental Engineering University of Batanghari Jambi, Indonesia
Abstract
Tanjung Jabung Timur Regency is a coastal area with peat water as clean water to meet daily needs. Peat water is not treated in advance by residents. This area is also a producer of marine resources in the form of shrimp which is a commodity in coastal regions. Shrimp are only used for meat, while shrimp shells, tails, heads become waste. Shrimp shell waste (chitosan) contains protein (25% - 40%), calcium carbonate (45% - 50%), and chitin (15% - 20%), but the magnitude of the component content depends on the type of shrimp. The purpose of this study is to utilize shrimp shells into alternative coagulants and determine the optimum dose of chitosan in reducing parameters in peat water. Shrimp shell waste (chitosan) into powder, then chitosan powder is used to treat peat water and determine the optimum dose of shrimp shell powder in reducing peat water parameters. The parameters tested were pH, color, iron, organic matter. The efficiency of shrimp shell waste powder in reducing peat water parameters. Variation of shrimp shell waste dosage (chitosan) at a dose of 100 mg / l, 200 mg / l, 400 mg / l and 500 mg / l. The results showed that the optimum dose of shrimp shells (chitosan) at a dose of 400 mg / l acidity degree (pH) efficiency could increase up to 75.00%, at a dose of 100 mg / l, the color parameter was able to reduce 49.52%, the iron parameter (Fe) able to reduce 90.20%, and settings of organic matter (KMnO4) reduce 73.49%.
Keywords
shrimp shell waste, Tanjung Jabung Timur District, alternative coagulant, peat water
Topic
Environmental Technology
Corresponding Author
Aslina Asnawi
Institutions
Hasanuddin University
Abstract
Beef cattle farming plays an important role in the fulfillment of meat for human needs, reducing poverty and unemployment in Indonesia. Although the role is very large, one of the challenges faced is the low accessibility of financing. This study aims to determine the constraints and roles faced by women to access financing in the beef cattle farming. Data were collected through a survey using questionnaires with a sample size of 80 people. This research is descriptive research and uses descriptive statistical analysis. The result revealed that the greater workload of women in housekeeping and relatively small time allocations and autonomy in determining financing decisions is a constraint faced by women. The role of women namely: the contributor, in giving consideration whether need to be financed with debt or not, able to control the risk of financing because women are usually more careful in making decisions related; Collaborators, women collaborate with their husbands in managing livestock conducted, while still taking care of household chores and family activities, participate in decisions and use of resources and assets, it is rare to find women who have a small side business that can sustain business capacity, and; Main Proprietor, his own income-generating in beef cattle farming, which she manages and controls herself, provides input to family financial decisions and asset use.
Keywords
Access Financing, Beef cattle Farming, Constraints, Role, Women
Topic
Socio-economic of animal science
Corresponding Author
Rieke Retnosary
Institutions
ab Fakulti Azman Hashim International Business School, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
retnosary[at]graduate.utm.my
zafir[at]utm.my
Abstract
Currently, the economic growth of some countries contributions by the vast development of the tourism sector and the development of a heritage site is one of the offers. Many tourists were aware of the citys status as a world heritage site that encompasses a historic center, monuments, and architectural buildings. One of tourist motivation can be heritage site perception with finding is indicate a distinct relationship between tourists- perceptions of the site relative to their heritage and motivation for visiting the site. The interpretation of authenticity is essential for the marketing and management of heritage attractions because existential authenticity is an antecedent to tourists- loyalty toward heritage sites. There are many problems or constraints from the process in tourism because of low control and lack of responsibility. Government still pay less attention to long term development which is policies is one of the barrier problems and sometimes not in democratic solution. Low level of involvement in the strategic planning in process and hierarchical top-down system also as a barrier needs to be attentive. Analyzed the problems, classification, and categorized 53 previous studies focused on heritage site has done. The study informed five elements correlation on tourism development and benefits as multiplier effects in tourism categories. The elements mentioned the tourist need and to be attracted, potential contribution, the constraints or problems in the process of visitation to the destination, stakeholders contributions and responsibility, and also strategic plan. The stakeholders contributions are the most significant element for taking responsibility, and the government as the main stakeholder who has to do the role of all process on heritage tourism development with policies and strategic plan to cover other elements. Government as the main stakeholder responsibility in processing on heritage tourism and with government hands can open partnership with other stakeholders (NGOs, Private, local community and visitors) to develop and then manage the heritage tourism easier. A proper process development then becomes sustainable, the outcome as a multiplier effect can obtain. This study will use in the future study at Tugu Kebulatan Proklamasi (TKP) in Rengasdengklok, Indonesia as a small site but have most histories for Indonesia independent, to put the government as the main stakeholder to investigate the implementing model of development with policy and strategic plan.
Keywords
Development of Heritage Site, Tourist, Responsibility, Government as Main Stakeholder, Policy and Strategic Planning
Topic
Hospitality and Tourism
Corresponding Author
Mutia Fikriyani
Institutions
a. Student of MPWK, Diponegoro University
*mutia.fikriyani[at]gmail.com
b. Magister Urban and Regional Development and Urban Planning, MPWK, Diponegoro University.
Abstract
The uncertainty in explication of Perumnas area management in the position of handover transition between Perumnas and the city government like this, is very interesting case to study. Because the gap between how the resident-s behaviour in Perumnas when faced with this problem, it is a research opportunity. In this case, initiative and creativity of Perumnas-s residents are expected to grow and develop in order to achieve the aim of SDGs those are designed in participatory manner. The diverse characteristics of the community in the social environment, have indirectly formed social capital, which is giving impact on the participation of residents in managing the Perumnas infrastructure. This research examine to explain the effect of comunity characteristics and social capital to participation of residents in the management of Perumnas Bukit Sendangmulyos-s infrastructure. This research using quantitative research methods with descriptive statistical analysis techniques, scoring, and regression. Methods of data collection using questionnaires, direct observation, and institutional surveys. The object of this research is Perumnas Bukit Sendangmulyo-s residents which is devided into residential types 21, 36, and 45. The result showed that in general, the participation of residents in type 36 was higher than the perticipation of residents in types of 21 and 45. We can see from the total amount of the participation given by the residents. The most participation was given by residents of type 21, in the form of suggestion, advice, and energy. From type of 36, their perticipation some kind of advice, material, and energy. And in type of 45, their participation in advice and in material. Based on the result of regression, yaitu Y = -2.249 + 0.196X1 + 0.182X2 + 0.243X3 + 0.174X4 + 0.168X5 + 0.060X6 + 0.145X7 + 0.239X8 + 0.101X9 + 0.353X10 + 0.222X11 + 0.089X12 we can see that the most variable which is have the strong relationship are information and communication, the types of job, trust and solidarity, cohession and social-s inclusivity
Keywords
community characteristics, social capital, community participation
Topic
Urban Development and Resilient Community
Corresponding Author
Hedwigis Esti Riwayati
Institutions
Perbanas Institute
Jakarta Selatan, Indonesia
hedwigis.esti[at]perbanas.id
nyimas.rizki[at]perbanas.id
Abstract
The purpose of this study is to develop a basic theoretical model of increasing the competitiveness of Small and Medium Enterprises through financial inclusion mediated by the implementation of social responsibility of large companies. While the general objective of this study is to develop an empirical model of testing and analyzing the improvement of the competitiveness of Small and Medium Enterprises through the financial inclusion of business actors mediated by the implementation of social responsibility of large companies. The object of this study is batik Small and Medium Enterprises in Bantul and Kulon Progo Regency, Yogyakarta, Indonesia. The data used are primary data obtained through distributing questionnaires to batik entrepreneurs in Bantul and Kulon Progo Regency, Yogyakarta, Indonesia. The sampling method uses saturated samples in which the entire population is sampled in this study. Data analysis methods used in this study are descriptive and inferential analysis. Descriptive analysis aims to describe the data obtained from each variable measured. Descriptive analysis is used to determine the characteristics of each indicator in each of the measured variables. While inferential analysis uses Structural Equation Modeling analysis tools with the Partial Least Square program. The results showed that the implementation of corporate social responsibility has not been fully enjoyed by batik entrepreneurs in Bantul Regency and Kulon Progo Regency Yogyakarta Indonesia. This happened allegedly still low financial inclusion of some people in Bantul Regency and Kulon Progo Regency, especially batik entrepreneurs. This condition causes obstacles for batik businesses to experience problems in developing their businesses.
Keywords
financial inclusion, social responsibility, SME competitiveness, batik entrepreneurs
Topic
Suistainable Business Development
Corresponding Author
Meta Andriani
Institutions
STIE Indonesia Banking School, Jakarta, Indonesia
meta[at]ibs.ac.id
Abstract
The research aims to see the effect of the intensity of the use of social media communication on the dimensions of brand equity, namely brand awareness, brand image, customer perceived value, brand quality and brand loyalty. The study was conducted by distributing questionnaires to 160 respondents who visited tourism destinations in Eastern Indonesia and the results showed that there was an influence between the use of social media and destination brand awareness and there was an influence between visitor perceived value and the formation of e-WOM. This research is quantitative data which compiles primary data as primary data, plus secondary data. Criteria for respondents who were sampled in this study were domestic tourists over the age of 18 years, who had travelled to areas in Eastern Indonesia. Questionnaires were distributed within a period of 3 months during the period July-September 2018 with the number of questionnaires collected was 160. This research builded by 12 hypothesis. Hypothesis testing results are: 1. There is a strong influence between the Intensity of Use of Social Media variable on the Tourism Destination Awareness variable. 2. There is an influence of Tourism Destination Awareness on Tourism Destination Image. 3. There is an influence of Tourism Destination Awareness on Tourism Destination Quality. 4. There is an influence of Tourism Destination Awareness on Visitors Perceived Value. 5. There is no influence of Tourism Destination Awareness (AWA) on Intention to Recommend Using Traditional WOM. 6. There is no influence of Tourism Destination Image on Intention to Recommend Using Traditional Word of Mouth Communication 7. There is no influence of Tourism Destination Quality on Intention to Recommend Using Traditional WOM. 8. There is no effect of Visitors Perceived Value on Intention to Recommend Using Traditional WOM. 9. There is no influence of Tourism Destination Awareness on Intention to Recommend Using e-WOM. 10. There is no influence of Tourism Destination Image on Intention to Recommend Using e-WOM. 11. There is no influence of Tourism Destination Quality on Intention to Recommend Using e-WOM 12. There is an effect of Visitors Perceived Value on Intention to Recommend Using e-WOM. Based on the results of the study there is a strong relationship between Tourist Destination Brand Awareness to the establishment of Destination Brand Equity (Brand Image, Brand Quality and Perceived Value), so it can be concluded that: 1. The intensity of social media use significantly influences destination brand awareness. This proves that exposure to a tourism destination on social media can increase awareness of the tourism destination. 2. Destination brand awareness has a positive influence on destination brand image, destination brand quality and customer value. However, this brand image and brand quality does not influence tourists to do WOM or e-WOM. 3. The results of the research show that what affects e-WOM is the
Keywords
WOM, eWOM, brand awareness, social media, destination brand equity
Topic
Marketing Management
Corresponding Author
Andi Ilham Said
Institutions
PPM School of Management, Jakarta
andiilhamsaid[at]gmail.com
PPM Management, Jakarta
tyq.ppm[at]gmail.com
Abstract
Introduction A big change can be occurred anytime and cannot be predicted. Every year, there will always be some markets that going through change, and organization must be ready to overcome this change for it to survive. The right processes is needed to help organizations face the market change. Therefore transformation model is built aiming to accommodate the needs. Methodology Methods used in this research is quantitative methods with double regression hierarchy and SEM. As much as 229 respondents gathered, with majority of the respondents hold supervision or higher level position (76.4%), and 88.1% of the respondents have been worked for more than 3 (three) years. This profile of the respondents generate beliefs that individuals participating in this research are competent enough to and appropriate to represent companies they worked for. Findings Research findings suggest that there are 3 main factors in organizational transformation model, which consists of 9 elements. These factors are: Strategy Factors with Visionary Business Direction, Readiness to Change, Market Orientation, and Dealing with External Environment elements; Execution Factors with Operational Excellence, Strong Leadership, and Competent People elements; as well as Acceleration Factors with Risk Management, and Organization Culture elements. For business strategies to run efficiently, these factors give both direct support and impact to the business strategies. Several factors, however, do not have a direct impact to and act as a booster and fasten the execution of business strategies. Conclusion PPM Management-s Transformation Model started from the consultation formulations and organizational experience PPM had, and then validated through deepening the theory and scientific research to make this model one solid model and can be implementing in many organizations to synchronize their business model with company-s new strategies in order to become a competitive organization.
Keywords
Transformation, Organization, Change, Strategic Management
Topic
Strategic Management
Corresponding Author
Fitri Lukiastuti Sawaloedjo
Institutions
University of Flores, Ende, NTT, Indonesia
gadidjou67[at]gmail.com
STIE Bank BPD Jateng, Semarang, Indonesia
fitri111269[at]stiebankbpdjateng.ac.id
Abstract
The ability to enter the international market has become a competitive necessity for many firms, and one important for survival and growth in the era of globalization. At the same time, digitalization is transforming the locus of entrepreneurial opportunities and entrepreneurial practices, thus offering new perspectives on internationalization. When entering international market, SMEs will require innovativeness capability, proactiveness and risk taking. However, there is a gap in the literature exploring the interplay of digitalization and entrepreneurial orientation in the internationalization process. The objective of the present study aims at developing insights that explain how SMEs in Semarang in the batik industry can use the tactics and strategies associated with entrepreneurial orientation (EO) to achieve superior performance in the digitalization age. Results from a survey in 63 SMEs show that: 1) SMEs that display high levels of EO report a higher level of performance, 2) SMEs that display high levels of digitalization report a higher level of EO, 3) the relationship between EO and performance is moderated by digitalization and 4) the relationship between digitalization and performance is moderated by EO. These results indicate that for those firms, innovativeness capability, risk taking and proactiveness are crucial to their success in foreign markets. Instead, SMEs should develop a clear vision on digitalization that is characterized by innovation, being ahead of the competition, and a willingness to take risks. Word limits The abstract text body is limited to 500 words.
Keywords
entrepreneurial orientation; digitalization; foreign markets; SMEs-performance
Topic
Innovation and entrepreneurship
Corresponding Author
Cici Wulandari
Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung 40132, Indonesia
b) Nuclear Physics & Biophysics Research Division, Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung 40132, Indonesia
*E-mail: awaris[at]fi.itb.ac.id
Abstract
An advanced nuclear reactor Generation IV, called MSR, has been developed with Thorium utilization for a sustainable energy system. In this paper, the reactor is designed with power operation of 250 MWt/100 MWe in five years without refueling. Fuel salt in the reactor is composed of a eutectic FLiBe, Thorium, and Plutonium, as a coolant, fertile, and fissile nuclide, respectively. Plutonium loaded is a weapon-grade which consist of 238Pu, 239Pu, 240Pu, 241Pu, 242Pu, and 241Am. Graphite is used as moderator; therefore, the reactor is operated in thermal energy range. The reactor design is calculated in neutronic terms with program code CITATION in SRAC 2006 with JENDL 4.0 as nuclear data library. The result shows some neutronic parameter changes with increasing Plutonium loaded. The utilization of Plutonium, in this case, is described as a capability of MSR in burning a high-level waste of nuclear and radioactive isotopes. This system can be dedicated to future cleaning energy production in a nuclear reactor.
Keywords
MSR; Neutronic design; SRAC;Thorium; Weapon Grade Plutonium
Topic
Nuclear Science and Engineering
Corresponding Author
I Ketut Astawa
Institutions
Tourism Department, Politeknik Negeri Bali, Indonesia
ketutastawa[at]pnb.ac.id
Tourism Department, Politeknik Negeri Bali, Indonesia
ketutbudarma[at]pnb.ac.id
Tourism Department, Politeknik Negeri Bali, Indonesia
widhari[at]pnb.ac.id
Tourism Department, Politeknik Negeri Bali, Indonesia
gedemudana[at]pnb.ac.id
Tourism Department, Politeknik Negeri Bali, Indonesia
gustinymsucimurni[at]pnb.ac.id
Accounting Department, Politeknik Negeri Bali, Indonesia
agungputrisuardani[at]pnb.ac.id
Abstract
1. Introduction and research problem Today tourists tend to choose hotels that consistently implement environmentally friendly practices. In line with this phenomenon, the concept of sustainable accommodation must apply the principles of environmental conservation, education, ecology, community empowerment and the use of local products, as well as minimizing environmental damage. Rahmafitria (2014) in her research revealed that accommodation with environmentally friendly concepts and management is one of the parameters driving tourists to choose accommodation facilities. President of the Republic of Indonesia Joko Widodo asked that the development of ten new tourist destinations must be realized. The President also requested that tourism destinations are differentiated into the ten new Bali developments. The ten new Bali is a term to say that Bali is the most popular and important destinations in the country. Thus, tourists also have more destinations in choosing tourist destinations (Kompas.com). The hotel industry is highly competitive and is extensively driven by customer demand. Moreover, the customers preferences and expectations are changing from time to time. Therefore, to be able to win the attention of the consumers, the tourism businessmen have to rapidly adjust for the changes that occur in the market (Deloitte, 2018). In response to the consumer-s change of preference towards green products and services, the hotel industry is adopting sustainable practices and advertised towards potential customers (Martínez García de Leaniz, Herrero Crespo, & Gómez López, 2018). An environmentally friendly hotel can be categorized as the one that offers sustainable services and focuses on minimizing its negative impacts on the environment through reusing, reducing, and recycling. It is used by an eco-friendly use of water and energy (Dalton, Lockington, & Baldock, 2008). Going green is important to attract the new segment of conscious consumers and to stay competitively relevant to the targeted market, but is also financially beneficial for the related tourism industry. What green aspects the hotel have which differentiating them from the hotel competitors? 2. Methods The research was located in a 5-star hotel in Bali. The study population was a 5-star hotel. The sample size is determined by 10 percent of Tri Hita Karana (THK Award) recipients. The sampling technique used is purposive sampling with a sample size of 36 respondents and 6 hotels. The respondents are F & B Manager, Purchasing Manager, Learning Development Manager, Director of Engineering, Public Area Manager, and CSR Manager from 6 samples hotel, namely Melia Bali, St. Regis Bali, Intercontinental Hotel, Conrad Bali, Mandapa Bali, and The Royal Pita Maha Resort. The primary data is obtained through observations, questionnaires, interviews with respondents, and Focus Group Discussion (FGD). Secondary data were obtained from Learning and Development, literature through
Keywords
green hotel, green product, competitive product, sustainable tourism
Topic
Hospitality and Tourism
Corresponding Author
Indah Rosidah Maemunah
Institutions
ITB
Abstract
There have been performed calculation about blanket module, using either solid, liquid, or molten salt material. The aim of the comparison is not only to find the effective configuration for assuring the tritium self-sufficiency condition, but also to predict the material damage rate and the Helium production rate. In the TBR, the liquid/molten salt breeding material resulted a high TBR (>1.15), whereas Iron material as First Wall (FW) component produced a higher Helium concentration, compared to Cr, Mo, W material.
Keywords
FW, helium, molten salt, TBR
Topic
Nuclear and Radiation Computation
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