THE CURRENT SITUATION OF MASTICATORY BEHAVIOR OF FIRST GRADER AT ELEMENTARY SCHOOL: A RELATIONSHIP BETWEEN MASTICATORY ABILITY AND STUDENTS’ LIKES AND DISLIKES

Twenty percent of first-graders of a public elementary school in Kanagawa Prefecture were unable to masticate school lunch properly. Teachers encouraged masticate training at school, but it showed no improvement. The purpose of this research was to investigate the characteristics of mastication to find possible methods and more specific mastication education. The subjects were 100 first graders(6～7years old) at public elementary school where school lunch was served with an individual tray. The survey was conducted during school lunchtime by recording the bread crust eating situation. Every student was provided with 8g of bread crust cut into three equal parts. Within one month, on the days when kibinago (herring-like forage fish), cabbage, potatoes, curry rice, bonito, and komatsuna (Japanese Spinach) were served, the subjects were asked about their “Likes or Dislikes” and the food was “Easy to Masticate or Hard to Masticate”.The average of masticatory time during eating bread crust was 76 seconds, the maximum was 151 seconds, and the minimum was 19 seconds. The average of masticatory frequency was 72 times, the maximum was 155 times and the minimum was 27 times. The average masticatory speed was 58 beats per minute (bpm), the fastest was 113 bpm and the slowest was 29 bpm. The most favorite dish was curry rice (99%) and the least favorite dishes were kibinago and bonito (13%, respectively). The highest percentage (27%) of the subjects answered bonito dish as “Hard to Masticate” and the lowest percentage (1%) was curry rice. “Dislike” was significantly associated with “Hard to Masticate” in cabbage (p<0.01) and bonito (p<0.01). The first graders had individual differences in masticatory behavior. It was suggested that “Likes and Dislikes” are related to masticatory ability. If the children practice the mastication of solid foods before entering school, the children might eat more smoothly

Active Contour Model with Splitting Characteristics for Multiple Area Extractions and its Hardware Realization

Abstract: In this paper, a new Sampled Active Contour Model (ACM) and its hardware realization method are proposed. The proposed Sampled-ACM is a virtual closed curve with some contour points to extract a specified area in images. Forces, such as "pressure", "attraction", "repulsion" and "vibration factor" work on every contour point of the proposed Sampled-ACM. The proposed Sampled-ACM only accesses the memories on which the contour points locate, the number of the memory access is reduced, and the faster processing speed is performed than ordinal contour models such as Snakes. The proposed Sampled-ACM has characteristics which reverses direction of attraction by the basis of specific conditions and also has splitting characteristics for multiple area extractions. The proposed Sampled-ACM is realized on FPGA (Field Programmable Gate Array) to construct a real-time hardware equipments. The experimental results to confirm the fast processing abilities of the proposed Sampled-ACM are also included

Human Tracking across Heterogeneous Systems Based on Mobile Agent Technologies

In a human tracking system, expanding a monitoring range of one system is complicating the management of devices and increasing its cost. Therefore, we propose a method to realize a wide-range human tracking by connecting small systems. In this paper, we examined an agent deploy method and information contents across the heterogeneous human tracking systems. By implementing the proposed method, we can construct a human tracking system across heterogeneous systems, and the system can track a target continuously between systems

Evaluation of Program Code Caching for Mobile Agent Migrations

Abstract: Mobile agents are able to migrate among machines to achieve their tasks. This feature is attractive to design, implement, and maintain distributed systems because we can implement both client-side and server-side programming in one mobile agent. However, it involves the increase of data traffic for mobile agent migrations. In this paper, we propose program code caching to reduce the data traffic caused by mobile agent migrations. A mobile agent consists of many program codes that define a task executed in each machine they migrate; thus, the mobile agent migration involves the transfer of their program codes. Therefore, our method reduces the number of the transfer of program codes by using program code cache. We have implemented our method on a mobile agent framework called Maglog and conducted experiments on a meeting scheduling system

Finite element analysis of cementless femoral stems based on mid- and long-term radiological evaluation

Comparison of stress shielding ~5 and ~10 years postoperatively (Fig. 5). (XLSX 12 kb

ユーザ存在の特定を困難にした分散匿名化の提案―2診療機関のレセプトデータを用いた有効性の評価―

複数機関が保持するユーザのパーソナル情報を結合・分析し，新たな知見を得ることが期待されている．例えば，医学研究のために複数医療機関が保持する医療情報を結合・分析することが期待されている．一方，パーソナル情報は個人のプライバシーに関する情報であるため，他の機関へ全開示した結合はできない．また，結合したパーソナル情報の組合せからユーザが特定されるおそれもある．そのため，パーソナル情報が含まれたテーブルを必要最小限の開示にとどめながら結合し，個人が特定されない形に加工した結合匿名テーブルを生成・開示する分散匿名化手法が注目されている．しかし既存手法では，双方の機関のユーザ集合が一致しない場合に，ユーザのパーソナル情報がその機関に保持されているか否かというユーザ存在が他方の機関に漏えいする問題があった．そこで本論文では，ユーザ存在を隠ぺいしつつ結合匿名テーブルを生成・開示する分散匿名化手法を提案する．そして，提案手法の計算量・通信量の評価と実際のレセプトデータを用いた有効性評価を行い，ユーザ存在を隠ぺいしながらも相対誤差15%以下でデータ分析な結合匿名テーブルが生成可能であることを確かめた．Recently, it is expected that personal information stored by different providers are combined safely to make a new service. Therefore researches have been conducted on a distributed anonymization, which combines the personal information and anonymize it to prevent identifying specific user records. However, in those researches, when sets of the users in the providers are not the same, there is a problem that users\u27 presence in either provider may be revealed. Thus, this paper proposes a new indicator which represents the probability of the presence of users being revealed and proposes a new distributed anonymization which satisfies the proposed indicator