Okinawa International University
Ginowan, Japan

Okinawa International University , often abbreviated as , is a private university in Ginowan, Okinawa, Japan. The predecessor of the school was founded in 1959, and it was chartered as a university in 1972. Wikipedia.

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News Article | September 29, 2016

Ancient Roman coins have been discovered in the ruins of a castle in Okinawa, Japan's southernmost prefecture. It was the first time that such artifact was discovered in Japan. Four copper coins that likely date back to the Roman Empire were unearthed in the ruins of the Katsuren Castle, a UNESCO World Heritage site. The castle was built sometime between the 13th and 14 century, but it was abandoned 200 years later. Archaeologists have been excavating this site since 2013. The castle used to be the residence of a feudal lord whose wealth was linked to regional trade. It is not, however, known if he engaged in business with traders from Europe. The copper coins measure 1.6 to 2 cm (0.63 to 0.79 inch) in diameter, but the designs and patterns on both their sides are no longer clear because of abrasion. X-ray analysis, however, revealed that the coins bear the image of Constantine the Great and a soldier holding a spear. The find came as a surprise. Archeologist Hiroyuki Miyagi, who works at the Okinawa International University, thought it's a hoax when he first heard that ancient Roman coins have been discovered in Okinawa. "I thought that they were replicas that had been dropped there by tourists," Miyagi said. The Uruma City's Board of Education, which carried out the excavation, said that the find suggests of the region's wide trade relationships. Okinawa's trading relationships with China and other Asian countries were thriving between the 14th and 15th century, and the discovery points at a possible link between Okinawa and the Western world, said Uruma City's Board of Education spokesperson Masaki Yokou. Toshio Tsukamoto from the Gangoji temple cultural properties department, who spotted the coins when he traveled to the castle, think that the Roman coins ended up in Japan after it passed through different trade routes that linked the West to Asia. "East Asian merchants in the 14th and 15th centuries mainly used Chinese currency, a round coin with a square hole in the middle, so it is unlikely that the Western coins were used as a means of currency," said Miyagi. Other artifacts that were discovered at the excavation site included a coin from the 17th century Ottoman empire and five other round metallic items that appear like coins. The Ottoman coin has inscriptions revealing it dates back to 1687. The Roman coins were older and are estimated to date back to 300 to 400 AD. © 2017 Tech Times, All rights reserved. Do not reproduce without permission.

Willcox B.J.,University of Hawaii at Manoa | Willcox B.J.,Kuakini Medical Center | Willcox D.C.,University of Hawaii at Manoa | Willcox D.C.,Kuakini Medical Center | Willcox D.C.,Okinawa International University
Current Opinion in Clinical Nutrition and Metabolic Care | Year: 2014

PURPOSE OF REVIEW: To examine the role of two nutritional factors implicated in the healthy aging of the Okinawans: caloric restriction; and traditional foods with potential caloric restriction-mimetic properties. RECENT FINDINGS: Caloric restriction is a research priority for the US National Institute on Aging. However, little is known regarding health effects in humans. Some caloric restriction-related outcomes, such as cause-specific mortality and lifespan, are not practical for human clinical trials. Therefore, epidemiological data on older Okinawans, who experienced a caloric restriction-like diet for close to half their lives, are of special interest. The nutritional data support mild caloric restriction (10-15%) and high consumption of foods that may mimic the biological effects of caloric restriction, including sweet potatoes, marine-based carotenoid-rich foods, and turmeric. Phenotypic evidence is consistent with caloric restriction (including short stature, low body weight, and lean BMI), less age-related chronic disease (including cardiovascular diseases, cancer, and dementia), and longer lifespan (mean and maximum). SUMMARY: Both caloric restriction and traditional Okinawan functional foods with caloric restriction-mimetic properties likely had roles in the extended healthspan and lifespan of the Okinawans. More research is needed on health consequences of caloric restriction and foods with caloric restriction-mimetic properties to identify possible nutritional interventions for healthy aging. © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins.

Willcox D.C.,Okinawa International University | Willcox D.C.,University of Hawaii at Manoa | Willcox D.C.,Kuakini Medical Center | Scapagnini G.,University of Molise | And 2 more authors.
Mechanisms of Ageing and Development | Year: 2014

The traditional diet in Okinawa is anchored by root vegetables (principally sweet potatoes), green and yellow vegetables, soybean-based foods, and medicinal plants. Marine foods, lean meats, fruit, medicinal garnishes and spices, tea, alcohol are also moderately consumed. Many characteristics of the traditional Okinawan diet are shared with other healthy dietary patterns, including the traditional Mediterranean diet, DASH diet, and Portfolio diet. All these dietary patterns are associated with reduced risk for cardiovascular disease, among other age-associated diseases. Overall, the important shared features of these healthy dietary patterns include: high intake of unrefined carbohydrates, moderate protein intake with emphasis on vegetables/legumes, fish, and lean meats as sources, and a healthy fat profile (higher in mono/polyunsaturated fats, lower in saturated fat; rich in omega-3). The healthy fat intake is likely one mechanism for reducing inflammation, optimizing cholesterol, and other risk factors. Additionally, the lower caloric density of plant-rich diets results in lower caloric intake with concomitant high intake of phytonutrients and antioxidants. Other shared features include low glycemic load, less inflammation and oxidative stress, and potential modulation of aging-related biological pathways. This may reduce risk for chronic age-associated diseases and promote healthy aging and longevity. © 2014 Elsevier Ireland Ltd.

Sakurai K.,Okinawa International University | Jex S.M.,Bowling Green State University
Journal of Occupational Health Psychology | Year: 2012

This study addresses the relationships between coworker incivility and both work effort and counterproductive work behaviors (CWBs). It was expected that employees who experienced high levels of incivility from their coworkers would report reductions in work effort and higher levels of CWBs. Also, based on the emotioncentered model of work behaviors (Spector & Fox, 2002), it was expected that negative emotions would mediate the relationships between coworker incivility and both work effort and CWBs. Finally, we examined supervisor social support as a moderator of relationships between negative emotions and both work effort and CWBs. Two hundred nine full-time university employees completed a two-wave survey over a two-month time period. Results supported the hypothesized mediated relationships. It was also found that supervisor social support moderated the relationship between negative emotions and work effort but not the relationship between negative emotions and CWBs. Study implications and limitations are discussed. © 2012 American Psychological Association.

Mori N.,World Health Organization | Armada F.,World Health Organization | Willcox D.C.,Okinawa International University
American Journal of Public Health | Year: 2012

Objectives. We analyzed the Japan's walking-to-school practice implemented in 1953 for lessons useful to other cities and countries. Methods. We reviewed background documents (gray literature, online government information, local policy documents, and regulations) for existing regulations in several urban settings. We also contacted boards of education. Results. Each municipality has a board of education in charge of public schools, which considers the geography, climate, and the transport situation to determine the method of commuting. Because there is high availability of schools in urban areas and most are located within walking range of the children's homes, walking is the most common method. There are different safety initiatives depending on the district's characteristics. Parents, school staff, and local volunteers are involved in supervision. Conclusions. The walk-to-school practice has helped combat childhood obesity by providing regular physical activity. Recommendations to cities promoting walking to school are (1) base interventions on the existing network of schools and adapt the provision to other local organizations, (2) establish safety measures, and (3) respond specifically to local characteristics. Besides the well-established safety interventions, the policy's success may also be associated with Japan's low crime rate.

Matayoshi M.,Okinawa International University
IECON Proceedings (Industrial Electronics Conference) | Year: 2010

In this paper, a new approach is proposed for solving the two-dimensional rectangle packing problem. The Corner-Junction (CJ) method [1] is combined with a Genetic Algorithm (GA) approach which enables 90-degree rotation of the rectangles in the chromosome structure. Unlike the original CJ+GA approach, which adopted a single chromosome structure, this refinement adopts a double chromosome structure which substantially reduces the bulk of computational processing and facilitates broader application of genetic operations. Experimental results show that this new CJ+DC approach provided good performance and significant savings of time for recognized benchmark tests C1-C6 for two dimensional strip packing problems [2], and significantly enhanced quality in terms of elimination or reduction of gap in comparison to established packing approaches. Results also compare favorably to those of the previous CJ+GA approach [1], which had a single-straight chromosome. © 2010 IEEE.

Matayoshi M.,Okinawa International University
Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics | Year: 2010

In this paper, an innovative method is proposed for solving the two-dimensional rectangle packing problem by utilizing the Corner-Junction method (CJ method) introduced here for conjoining rectangular corners, enabling two adjoined rectangles to line up. Verification is accomplished through application of an evolutionary algorithm (EA), using the chromosome-structure also introduced. Some benchmark tests of the strip packing problem are shown to be solved by this EA, which enables 90-degree rotation of the rectangles. The experimental results show that use of the proposed CJ method provides satisfactory packing of rectangles but with quality in terms of gap varying 5-12% less than that of optimal solutions. The failure of EA to detect all viable solutions resulting from application of the CJ method is a consequence of the present sequential limitations of the proposed chromosome structure. ©2010 IEEE.

Matayoshi M.,Okinawa International University
Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics | Year: 2011

This paper proposes a new placement method for two dimensional rectilinear polygons. The proposed method is based on the idea of corner junction method and uses only genetic algorithm approach with a new chromosome structure to pack rectilinear polygons onto container. The proposed method is implemented by enhancing the double chromosome structure to a hierarchical chromosome structure. It is a novel approach for solving the layout problem of rectilinear polygons using only genetic algorithm. Experimental results show the proposed method is succeeded in placement of some complicated two dimensional rectilinear polygons in feasible time. © 2011 IEEE.

Matayoshi M.,Okinawa International University
Proceedings of the 12th Annual Genetic and Evolutionary Computation Conference, GECCO '10 - Companion Publication | Year: 2010

Proposed here is a new strategy for rectangle placement with a chromosome-structure model for confirmation of that strategy. The new strategy sequentially adjoins two rectangles at their corners, making them adjacent and aligned horizontally or vertically. A single-integer string defines the chromosome structure that enables use of traditional genetic/evolutionary algorithms for confirmation of the packing strategy. Small-size benchmark tests C1,⋯, C4 of the strip-packing problem are solved by this new packing strategy with a limited GA (no crossover) which enables 90-degree rotation of the rectangles. © 2010 ACM.

Matayoshi M.,Okinawa International University
Proceedings - 2013 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2013 | Year: 2013

A search technique for convex hull and a shape extraction method using only genetic algorithm are proposed in this paper. The shape extraction method gets shape in wrapping from convex hull or approximate solution of convex hull. Small original problems are provided as the test problems, and it is shown that those convex hulls are obtained by proposed genetic algorithm method. After obtaining convex hull or approximate convex hull, crossover, a local search method, and a modified fitness function are started to get the shape in the wrapping. Consequently, the proposed GA succeeds in extracting the shape from the point sets in the plane. The experimental results show success in acquisition of the convex hull and the shape, and the mean time to obtain each problem's convex hull is within half of one second. © 2013 IEEE.

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