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The Flexible Application of Real Options for Subcontractor in the Soft Drink Manufacturing Industry
Kume, Katsunori,Fujiwara, Takao Asian Society for Innovation and Policy 2018 Asian Journal of Innovation and Policy Vol.7 No.3
In the soft drink industry, especially small and medium enterprises in Japan, there is a possibility of conversion from a labor-intensive industry to a capital-intensive. The demand for soft drinks may not be satisfied in the summer because the supply is too low to meet the demand. To address this situation, this paper proposes optimal investment that integrates demand uncertainty, based on real options approach (ROA) and seasonal autoregressive integrated moving average. Two alternative options are compared and evaluated. One is the Bermudan option: to employ additional workers to elevate efficiency in summer and laying off in winter, this attitude is repeated each year. The other is the American option: to replace equipment to increase machine ability throughout the year. Results in ROA show that the highest improvement is gained if the two options are in a symbiotic relationship. Soft drink producers should search for replacing equipment, using the employees repeatedly. A temporary decision is not equal to an infinite decision.
Evaluation of Urinary Nitrogen Excretion from Plasma Urea Nitrogen in Dry and Lactating Cows
Kume, S.,Numata, K.,Takeya, Y,Miyagawa, Y,Ikeda, S.,Kitagawa, M.,Nonaka, K.,Oshita, T.,Kozakai, T. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.8
Data of 42 balance measurements from dry and lactating Holstein cows and blood and urine samples from 24 Japanese Black cows were collected to evaluate the potential for predicting urinary nitrogen (N) excretion from plasma urea nitrogen (PUN). Similar positive correlations were obtained between N intake and apparent N absorption in dry and lactating cows. The regression equations of N intake on urinary N excretion varied in dry and lactating cows, and the difference of urinary N excretion between dry and lactating cows was due to the N secretion into milk. Highly positive correlations were observed between urinary N contents and urinary urea N in Japanese Black cows, and urinary urea N increased with increasing PUN. There were positive correlations between N intake and PUN in dry and lactating cows, but PUN and urinary N excretion in lactating cows were higher than in dry cows. There were positive correlations between PUN and urinary N excretion per BW in dry and lactating cows. Although urinary N excretion could be calculated as (N clearance rate of kidneys)PUNBW, high N clearance rate of kidneys, such as 2.08 L/d/kg BW, may be suitable to calculate urinary N excretion in lactating cows, compared with 1.33 L/d/kg BW in dry cows.
Effect of Parity on Mineral Concentration in Milk and Plasma of Holstein Cows During Early Lactation
Kume, S.,Yamamoto, E.,Kudo, T.,Toharmat, T.,Nonaka, I. Asian Australasian Association of Animal Productio 1998 Animal Bioscience Vol.11 No.2
Plasma and milk samples of 24 periparturient Holstein cows were collected from 1 week prepartum to 10 week postpartum to measure the effects of parity on mineral status in periparturient cows. Cows were fed mainly mixed ration with the concentrate supplement during the experimental period to meet nutrient requirement of dairy cattle for TDN, protein, and minerals, Plasma Ca of cows decrease as parity increased, but plasma Mg, K, Fe and Zn were lowest in the first lactation cows. Plasma inorganic P, Na, and alkaline phosphatase were not affected by the parity. Plasma Ca, Fe and Zn of cows decreased at parturition, but plasma Mg increase. Plasma Ca of the first, second and third and more lactation cows at parturition were 9.65, 8.96, and 8.92 mg/dl, respectively. Colostral Ca, P, Mg, Na, and Zn were highest in the first lactation cows, although colostrum yield was lower. Milk yield from 1 to 10 weeks postpartum was lowest in the first lactation cows, but mineral concentrations in milk were not affected by the parity.
Kume, Shoko,Kurihara, Masato,Nishihara, Hiroshi The Korean Electrochemical Society 2002 한국전기화학회지 Vol.5 No.4
Reversible trans-cis isomerization of meta-bipyridylazobenzene coordinated to cobalt was achieved by a combination of photoirradiation with a single UV light source and a Co(II)/Co(III) redox reaction. The trans/cis conversion performance was significantly improved in the meta-form compared with the meta-form ligated to cobalt.
Electrolyte Status and Fecal Consistency in Newborn Calves
Kume, S.,Toharmat, T. Asian Australasian Association of Animal Productio 2001 Animal Bioscience Vol.14 No.5
In order to evaluate the change in plasma and fecal mineral content of calves to 6 days of age, and to clarify the relationship between electrolyte status and fecal consistency in calves at 6 days of age, data were collected from 52 Holstein calves. Fecal DM and Na of calves decreased at 6 days of age, but fecal Ca, P, Mg, K, Fe and Zn increased. Plasma Ca, inorganic P, Mg, Na, and Fe as well as blood hematocrit and hemoglobin of calves decreased at 6 days of age, but plasma alkaline phosphatase increased. Colostral Ca, P, Mg, Fe and Zn decreased with time postpartum, but colostral Na and K were not affected. The high plasma Na and K of calves at 6 days of age were influenced by the values at birth. There were negative correlations between fecal DM and fecal Na, and fecal K, of calves at 6 days of age, negative correlations between fecal DM and plasma Na, with plasma K. Plasma and fecal Na as well as plasma and fecal K of calves at 6 days of age were increased by the occurrence of diarrhea. These results suggest that the electrolyte status of calves at 6 days of age is adversely affected by the occurrence of diarrhea, and high plasma K and Na of calves at 6 days of age may be partly due to the electolyte status of calves at birth.
Autophagy: A Novel Therapeutic Target for Diabetic Nephropathy
Shinji Kume,Daisuke Koya 대한당뇨병학회 2015 Diabetes and Metabolism Journal Vol.39 No.6
Diabetic nephropathy is a leading cause of end stage renal disease and its occurance is increasing worldwide. The most effective treatment strategy for the condition is intensive treatment to strictly control glycemia and blood pressure using renin-angiotensin system inhibitors. However, a fraction of patients still go on to reach end stage renal disease even under such intensive care. New therapeutic targets for diabetic nephropathy are, therefore, urgently needed. Autophagy is a major catabolic pathway by which mammalian cells degrade macromolecules and organelles to maintain intracellular homeostasis. The accumulation of damaged proteins and organelles is associated with the pathogenesis of diabetic nephropathy. Autophagy in the kidney is activated under some stress conditions, such as oxidative stress and hypoxia in proximal tubular cells, and occurs even under normal conditions in podocytes. These and other accumulating findings have led to a hypothesis that autophagy is involved in the pathogenesis of diabetic nephropathy. Here, we review recent findings underpinning this hypothesis and discuss the advantages of targeting autophagy for the treatment of diabetic nephropathy.