Jakarta, Indonesia

State University of Jakarta

Jakarta, Indonesia

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Azhar E.H.,University of Indonesia | Sutopo A.S.,State University of Jakarta
IOP Conference Series: Materials Science and Engineering | Year: 2017

Blood sugar levels is very important as an indicator of measurement associated with diabetes. The prevalence of diabetes that occurs during adolescence in Indonesia has increased, so it is important to maintain health condition to controlling blood sugar levels in the body since adolescence. Aerobic physical activity such as cycling can regulate and control blood sugar levels because it makes glucose as the body's main energy source. This study aims to determine the effect of cycling for 20 minutes on blood sugar levels in male students of senior high school 9 Tangerang. This study design was quasi-experimental one group pre-test and post-test. The sample were 21 respondents selected by purposive sampling. Intervention was given by cycling for 20 minutes at speed approximately 25km/h. 2 hours before intervention was given, all respondents have breakfast together with the same menu. Measurement of blood sugar levels done before and after intervention. The results showed that cycling for 20 minutes affect changes in blood sugar levels significantly (p=0.000). The average reduction in blood sugar levels after the intervention is 25.0 mg / dl. Cycling for 20 minutes if done regularly can help keep blood sugar levels in the normal rate. © Published under licence by IOP Publishing Ltd.

Safitri D.,State University of Jakarta
Advanced Science Letters | Year: 2015

The purpose of this study provides a description of the learning model rhetorical argumentation in social media effectively and emancipatory. Learning model used is replication of the model Tolumin argument. The research method used is a case study with qualitative methodology. The results showed that the learning model of rhetorical argumentation in social media on political decisions Jokowi case studies, during the 100-day rule, shows that many claims are built not effective, because there are many people who ask for social media Jokowi think back on that decision. The data support the residents claim is weak leadership Jokowi as party officials. Warrants used social media community is a decision that raised volunteers Jokowi Jokowi, sitting as a leader in a number of strategic positions of government. © 2015 American Scientific Publishers.

Kuncoro H.,State University of Jakarta
Journal of Environmental Management and Tourism | Year: 2016

The impact of exchange rate on tourism arrivals fluctuation has been well accepted in the frame work of demand function. However, literature on the influence of tourism arrivals on exchange rate stabilization revealed inconclusive. This paper attempts to analyze the economic importance of international tourism arrivals in Indonesia based on the question of whether tourism arrivals contribute to stabilize exchange rate. Estimation of monthly time series data for the period of 2004-13 presents that Hedrick-Prescott filtered cyclical components of tourism arrivals and exchange rate are co-integrated and bi-directional Granger-causality. The results of VAR present that cyclical characteristics of tourism arrivals are pro-cyclical to exchange rate implying that the increase in tourism arrivals induce the destination currency appreciation. These results indicate that tourism arrivals are sustainable inflow and have a big potency to absorb other external funding resources volatility in order to maintain adequate international reserve and therefore contribute to achieve the stable exchange rate. In such a case, improving the competitiveness of tourism sector should be an integral part of the exchange rate stabilization program. © 2016, ASERS Publishing House. All rights reserved.

Prayitno T.B.,State University of Jakarta
Journal of Physics: Conference Series | Year: 2014

We have constructed the equation of state of one-dimensional Gross-Pitaevskii equation by benefiting from the formulation of a single macroscopic particle partition function and then modeling N undistinguishable macroscopic particles in canonical ensemble. This macroscopic particle, in which two or more atoms include, is literally a condensate that can be observed as an assembly in the system. In this case, we suppose all condensates are confined in the anisotropic parabolic trap and interaction between two condensates can be ignored by applying semi infinite cigar-shaped trap. It is also shown that the equation of state is indeed an ideal gas with the new thermodynamic interpretation of volume and pressure. Moreover, Even though our resulting partition function was portrayed as a sum of exponential functions, we prove that the series is indeed convergent. © Published under licence by IOP Publishing Ltd.

Irnidayanti Y.,State University of Jakarta
Pakistan Journal of Biological Sciences | Year: 2015

Heavy metals contamination on the coast of Jakarta Bay has led to the level of pollution and can cause toxicity to organisms living in the sea, i.e., green mussels. Green mussels have the ability to detoxify metals entering their bodies. Their ability to accumulate metals is higher than other aquatic animals. This is due to their sedentary life which prevents them from avoiding the effects of pollution and their high tolerance to certain metals. The high concentration of metal content would be toxic to the cell because metal ions can act as oxidants and bind to organic and protein molecules. The results of the study showed that traces of heavy metals were detected in the hepatopancreas, gills, muscles and gonads organs of the mussels living in the waters of Muara Angke. Lead (Pb) and cadmium (Cd) were found in all four organs, while mercury (Hg) was not detected in the muscles. Traces of Hg and Cd were not detected in hepatopancreas, gills, muscles and gonads of green mussels inPanimbang, while Pb was detected by 0.001 in the male gonads and 0.01 in hepatopancreas. The concentration of Pb in the male gonads are still below the acceptable limit and concentration of Pb in the hepatopancreas is relatively equivalent to the acceptable limit. Metal detection in the organs above shows that the Muara Angke waters tend to be polluted and have an impact on the mussels weight loss as a result of heavy metal toxicity. © 2015 Asian Network for Scientific Information.

Prayitno T.B.,State University of Jakarta
AIP Conference Proceedings | Year: 2013

We propose a schematic way to obtain solution of the outcoupled atom laser beam wave function in the presence of a source term where the beam is influenced by gravity. In this case, we only focus on the external potentials inside the region of Bose-Einstein condensate that are generated by electromagnetic source and gravity. Since the evolution of the atom laser beam can be portrayed through the ordinary Schrödinger equation with a source, we are allowed to express the general solution as the superposition of the homogeneous solution and particular solution. With the given external potentials and ansatz solutions, we attain that the obtained energy depends on the parameter constituting to the ratio between the longitudinal frequency and transverse frequency. © 2013 AIP Publishing LLC.

Kuncoro H.,State University of Jakarta
Economic Computation and Economic Cybernetics Studies and Research | Year: 2015

The impact of government expenditure shock on exchange rate is controversial. In standard macroeconomics theory of open economies, it is argued that an increase in government expenditure leads to an appreciation of the domestic currency. More recent papers, in contrast, find the opposite results. Unlike the previous studies, this paper synthesizes the two competing paradigms to empirically investigate whether it has had any relationship with the exchange rate stabilization instead of the exchange rate determination. After analyzing the quarterly data covering 1998-2012 in the case of Indonesia by employing auto-regressive distributed lag model, the study found that the impact of discretionary fiscal policy on the exchange rate stabilization typically depends on the characteristics of fiscal policy shock. In one hand, the government spending policy shock reduces the exchange rate volatility. In contrast, the discretionary of fiscal policy shock induces the exchange rate volatility. The results are robust across three types of exchange rates volatility specification. Those findings above suggest that fiscal policy should be conducted based on the fiscal rule to maintain exchange rates stabilization. © 2015, Academy of Economic Studies. All rights reserved.

One of the plastic-based materials widely used in the plastics industry in various countries is ester phthalate. This compound will be oxidized in the body into 2-methoxyethanol (2-ME). The effect of 2-ME on human health and environment depends on the number, duration and the frequency of exposure. Recently, the incidence of brain damage tends to increase. In the last decade, it has been widely reported the negative effects of chemical pollutants to the environment. The aim of this study were to know the existence of the expression of Vimentin and GFAP proteins caused by 2-ME on the histological structure of the cerebral cortex of mice fetal during the prenatal period on gestation day 14 (GD 14) and day 18 (GD 18). The 2-ME compound was injected intraperitoneally with a dose of 7.5 mmol kg-1 of body weight at GD-10. The result showed that there is a change in existence Vimentin protein in the cerebral cortex fetal of treated mice at GD 14, which is very conspicuous. Meanwhile, a change in existence of GFAP protein in cerebral cortex fetal of treated mice at GD 14, have relatively no difference from controls and no impact on histological structure changes of the cerebral corteks at GD 14. The change in existence of Vimentin protein in the cerebral cortex fetal of treated mice at GD 14 have an impact on histological structure of the cerebral cortex of mice treated at GD 18. It is believed that the impact is due to the effects of 2-methoxyethanol. © 2014 Asian Network for Scientific Information.

Neolaka A.,State University of Jakarta
WIT Transactions on Ecology and the Environment | Year: 2013

This study aims at investigating the level of participation in flood control activities on the part of community members who live by the Ciliwung river bank. Since the river is quite a long one, it was decided to conduct this study in the area between Kalibata Bridge and Manggarai floodgate, about eight kilometers in length. The study was conducted between October to December 2011. The study focused on natural resources management. The first sub-focus is stakeholder participation, the second is flood control, and the third is the Ciliwung river bank area where recurrent flood occurs. The study questions whether there is community participation in flood control activities within the Ciliwung riverbank area. The paradigm is how the government, together with the community along the Ciliwung riverbank, demonstrate their concern for their environment that is reflected in their taking care of the environment such as preventing themselves from throwing garbage into the river so as not to flood every time it rains. This qualitative study is supported by data collected by means of observations, interviews, and documentation. Findings of the study show a high level of participation expressed in words by the community. Yet, they reported difficulties in putting this into action due to the slum area they are living in, unavailability of road access, and waste resulting from disposal activities of residents forced to use the river. It is therefore not surprising that the river is full of garbage and they experience floods during the rainy season. The government has not sufficiently persudaded the target community to participate in flood control activities. In interviews, the target community stated that they were ready not to throw garbage into the river provided that there is road access, garbage carts or trucks are available fortransporting waste to landfill. We are ready to move from the Ciliwung riverbank areas, where we have lived after our predecessors, provided that a decent substitute place is made available, or some compensation that allows us a decent living is rendered by the government. In fact, the government is planning to normalize the Ciliwung riverbanks and prepare inexpensive flats for the community. In conclusion, the community is willing to participate by not throwing garbage into the river so that the flooding could be controlled, provided that the government be proactive with their assistance by providing road access and waste transport along the Ciliwung riverbanks. Otherwise, the flood problem cannot be controlled. © 2013 WIT Press.

We have imposed the conditions in order to preserve the real-valued partition function in the case of onedimensional Gross-Pitaevskii equation coupled by time-dependent potential. In this case we have solved the Gross-Pitaevskii equation by means of the time-dependent perturbation theory by extending the previous work of Kivshar et al. [Phys. Lett A 278, 225-230 (2001)]. To use the method, we have treated the equation as the macroscopic quantum oscillator and found that the expression of the partition function explicitly has complex values. In fact, we have to choose not only the appropriate functions but also the suitable several values of the potential to keep the real-valued partition function. © 2014 AIP Publishing LLC.

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