Judul: Hubungan Tingkat Kesukaan dan Asupan Energi dan Protein terhadap Daya Tahan Fisik Siswa Pusat Pendidikan TNI
Abstrak: This study was aimed to analyze the correlation between food preferences and energy protein intake with physical endurance in Indonesian Military Student Center. Cross sectional design was applied in this study at Pusdikzi and Pusdikintel Strat Kodiklat TNI. Total subject were 107 students. The result showed that food preferences between two kinds student had no difference. The recommended daily allowances, intake also level adequacy of energy and protein on Pusdikzi was higher with Pusdikintel Strat significanly (p<0.05). The physical endurance of two kinds showed Pusdikzi was higher significanly between Pusdikintel Strat. Spearman test correlation result showed there was an association between age (p<0.051, r=0.245) and nutritional status (p>0.05, r=0.017) with food preferences. There no association between food preferences with energy (p>0.05, r=0.021) and protein level intake (p>0.05, r=-0.048). There was an association between energy (p<0.05, r=0.395) and protein adequacy level (p<0.05, r=0.588) with physical endurance.
Keyword: 

Judul: Hubungan antara Konsumsi Air, Asupan Energi dan Protein dengan Daya Tahan Fisik pada Siswa Pusat Pendidikan TNI
Abstrak: The purposes of this study were to analyze the correlation of energy and protein intake with physical endurance, water consumption with physical endurance and supplements with physical endurance. Cross sectional design was applied in this study at Education Center of Engineers (Pusdikzi) and the Education Center for Strategic Intelligence (Pusdikintel Strat) Kodiklat TNI. Total sample are 107 male students. Drinks frequencies in both Pusdikzi (62.2%) and Pusdikintel (72.2%) were > 8 glass/day, prefered drinking time was after wake up in Pusdikzi (58.5%) and in Pusdikintel Strat (53.7%), plain water in Pusdikzi was bottled plain water (55.6%) because it is safe and healthy (57.4%). Subject in Pusdikintel Strat prefered non-bottled plain water (68.9%) because safe and healthy (54.7%). Pearson correlation test result showed that there was significant correlation between energy (p<0.05, r=0.395 ) and protein level intake (p<0.05, r=0.588) with physical endurance (VO2max). There was also significant correlation between water sufficient level with physical endurance (VO2max) (p<0.05). Rank Spearman correlation test result showed that there was significant correlation between supplement consumption and physical endurance (VO2max) (p<0.05.)
Keyword: 

Judul: Bifurkasi Hopf pada Model Siklus Bisnis Kaldor Kalecki tanpa dan dengan Waktu Tunda
Abstrak: Business cycle model is one of dynamical system models in economic. One of the business cycles model is Kaldor-Kalecki model. Kaldor-Kalecki business cycle model that is written in delayed defferential equations, is a business cycle model that involves gross product and capital stock of a company. In this paper Kaldor-Kalecki business cycle model is analyzed using both nondelay and delay in time of capital stock. By Taylor expansion for the time delayed model, an analysis of stability around the fixed points has been done. Furthermore, by using Hopf bifurcation theorem, it can be shown that there exists periodic orbits and limit cycle. In the nondelayed model, changing the parameter of goods market could lead to the occurrence of Hopf bifurcation and the existence of limit cycle. Similarly, for the delayed model, it has been shown that changing the time delay parameter may result in the occurrence of Hopf bifurcation and limit cycle.
Keyword: