Tagged One-Time Signatures: Tight Security and Optimal Tag Size

We present an efficient structure-preserving tagged one-time signature scheme with tight security reductions to the decision-linear assumption. Our scheme features short tags consisting of a single group element and gives rise to the currently most efficient structure-preserving signature scheme based on the decision-liner assumption with constant-size signatures of only 14 group elements, where the record-so-far was 17 elements. To demonstrate the advantages of our scheme, we revisit the work by Hofheinz and Jager (CRYPTO 2012) and present the currently most efficient tightly secure public-key encryption scheme. We also obtain the first structure-preserving public-key encryption scheme featuring both tight security and public verifiability

Expression of nm23-H1 gene product in esophageal squamous cell carcinoma and its association with vessel invasion and survival

BACKGROUND: We assessed the nm23-H1 gene product expression and its relationship with lymphatic and blood vessel invasion in patients with esophageal squamous cell carcinoma. METHODS: Formalin-fixed and paraffin-embedded tissue sections from 45 patients who were treated surgically were used in this study. Pathologists graded lymphatic and blood vessel invasion in each of the tissue samples. Expression of nm23-Hl gene product was determined using a specific monoclonal antibody. RESULTS: Expression of nm23-H1 gene product was present in 17 (37.8%) cases. We found an inverse correlation between nm23-H1 gene product expression and lymphatic vessel invasion, whereas no correlation between nm23-H1 gene product expression and blood vessel invasion. Overall survival rate was not different between nm23-H1 gene product positive and negative patients (p = 0.21). However, reduced expression of nm23-H1 gene product was associated with shorter overall survival in patients with involved lymph nodes (p < 0.05), but not in patients without involved lymph nodes (p = 0.87). CONCLUSIONS: In patients with esophageal squamous cell carcinoma, there appears to be an inverse relationship between nm23-H1 gene product expression and lymphatic vessel invasion. Furthermore, nm23-H1 gene product expression might be a prognostic marker in patients with involved lymph nodes. Our data does not demonstrate any correlation between nm23-H1 gene product expression and blood vessel invasion

フクシ キョウイク キャンプ ジッシュウ ゼンゴ ノ ガクセイ ノ キブン プロフィール ノ ヘンカ

本研究では、福祉教育キャンプ実習参加学生82名(男子学生51名、女子学生31名、平均年齢18.8 ± 0.2歳)を対象に、キャンプ実習体験が学生の気分・感情にどのような影響を及ぼすのかProfile of Mood States(POMS調査)を用いて検討した。実習前のPOMS得点は、男子学生および女子学生ともに陰性因子である「抑うつ」得点が一番高い値を示した。実習後の「活気」得点は実習前より高い値を示し有意差が認められた。実習前の5つの陰性気分の得点は、実習後有意に低下した。TMD得点は、男子学生および女子学生ともに実習前より実習後に低下し有意差が認められた。実習後のキャンプ効果得点は、男子学生および女子学生ともに「楽しさ」、「気分がよい」、「満足感」、「達成感」、「精神的疲労」、「睡眠」および「食事」の各得点が高い値を示した。これらの結果から、福祉教育キャンプ実習は、学生の陰性感情を低下させ陽性感情を高揚させる効果のあることが示唆された。The purpose of the present study was to evaluate the effects of welfare education camp on the Profile of Mood States (POMS) in undergraduate students (51 males, 31 females, 18.8 ± 0.2 years of age). In the pre-camp practice, the depression-dejection score of the male and female students were the highest value. The vigor score in the post-camp practice was higher than that in the pre-camp practice. The other negative mood scores in the pre-camp practice were significantly low in the post-camp practice. The total mood disturbance score in the post-camp practice was significantly lower than that in the pre-camp practice. The camp scores of the post-camp practice indicated a high value in enjoyable, comfortable, satisfaction, sense of achievement, mental fatigue, sleeping and diet meal. These results suggest that welfare education camp effectively decreased negative mood score and increased positive mood score in the undergraduate students

フクシ キョウイク キャンプ ジッシュウ ゼンゴ ニ オケル ジョウタイ フアン STAI ノ ヘンカ ウラワ ダイガク タンキ ダイガクブ フクシカ ノ キャンプ ジッシュウ ヨリ

本研究は、浦和大学短期大学部福祉科で実施されるキャンプ実習(スポーツ実技B)に参加した学生60名(男子学生7名、女子学生53名)を対象に、キャンプ実習の体験学習が学生の心理的側面にどのような影響を及ぼすのかSTAI日本語版X-1(状態不安)調査用紙を用いてキャンプの効用を明らかにした。その結果、 1)キャンプ実習前のSTAIは、学生全体の60.0%が高い不安得点であった。 2)キャンプ実習後のSTAIは、高い不安得点は全体の21.7%へと減少した。 3)キャンプ実習前後の不安得点の平均値は、実習前の45.2±9.8点から、実習後に35.8±8.6点へと有意に低下していた。The purpose of this study was to evaluate of anxiety in college students undergoing a camp program by using a State-Trait Anxiety Inventory (STAI) method. Sixty students (7 males and 53 females) undergoing the camp program in a series of four days included three nights were studied. We evaluated the change of students\u27 state anxiety pre-and post-camping with the STAI (Form X-1, Japanese Version) method, and investigated difference of students\u27 state anxiety pre and post camping by paired t-test. The results obtained were as follows: 1)In the pre-camp, 60% of the student body showed high state anxiety. 2)In the post-camp, the state anxiety significantly decreased (from 60% to 21.7%) compared with the pre-camp. 3)The anxiety score in the post-camp (35.8±8.6 points) was significantly lower than that in the pre-camp (45.2±9.8 points)

フクシ キョウイク キャンプ ニ オケル キャンプ デノ セイカツ タイケン ガクシュウ ガ キャンプ ノ イメージ ニ オヨボス エイキョウ

本研究では、浦和大学短期大学部学生(117名)を対象とした、福祉教育キャンプにおけるキャンプでの生活体験学習がキャンブのイメージに及ぼす影響について検討した。実習前と比較して、実習後の刺激語(キャンプ)に対する反応語数は有意に増加した。実習前後の一般的な反応語は、テント、山、川およびキャンプファイヤー等であった。反応語の分類では、実習後に感情型、要素型、環境型が減少傾向を示した。一方、社交型(例えば、友達、友情、協力、笑顔など)は実習後有意に増加した。A study was carried out to examine the effects of welfare education camp on the image of camping in Urawa University Junior College students (n=117). The number of reactive words to the stimulus word (camp) in the post-camp significantly increased compared with the pre-camp. In the pre- and post-camp, common reactive words were the tent, the mountain, the river, and the campfire, etc. In the classification reaction words, the feelings type, the element type and the environmental type showed the decreasing tendency after practicing camping. On the other hand, the sociality type (for example, friend and friendship, cooperation, and smile, etc.) significantly increased in the post-camp